TY  - JOUR
AU  - Kasalović, Marijana P.
AU  - Jelača, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Lađarević, Jelena
AU  - Radovanović, Lidija
AU  - Božić, Bojan
AU  - Mijatović, Sanja
AU  - Pantelić, Nebojša Đ.
AU  - Kaluđerović, Goran N.
PY  - 2024
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/6268
AB  - Three new diphenyltin(IV) complexes, bis(3-(4-methyl-2-oxoquinolinyl-1(2H)-yl)propanoato)diphenyltin(IV) (1), bis(2-(4-methyl-2-oxoquinolin-1(2H)-yl)ethanoato)diphenyltin(IV) (2), and bis(2-(4-hydroxy-2-oxoquinolin-1(2H)-yl)ethanoato)diphenyltin(IV) (3), were synthesized and characterized by elemental microanalysis, FT-IR spectroscopy, and multinuclear (1H, 13C and 119Sn) NMR spectroscopy. Crystal structure of ligand precursor, 3-(4-methyl-2-oxoquinolinyl-1(2H)-yl)propanoic acid (HL1), has been determined by X-ray diffraction studies. Asymmetric bidentate coordination of the carboxylato ligands and skew trapezoidal structures are assumed for the synthesized complexes. In vitro anticancer activity of the synthesized diphenyltin(IV) complexes was evaluated against three human: MCF-7 (breast adenocarcinoma), A375 (melanoma), HCT116 (colorectal carcinoma), and three mouse tumor cell lines: 4 T1 (breast carcinoma), B16 (melanoma), CT26 (colon carcinoma) using MTT and CV assays. The IC50 values fall in the range from 0.1 to 3.7 μM. Flow cytometric analysis and fluorescent microscopy suggest that complex 1 induces caspase-dependent apoptosis followed with strong blockade of cell division in HCT116 cells. Since complex 1 showed ROS/RNS scavenging potential mentioned cytotoxicity was not connected with oxidative stress.
PB  - Elsevier
T2  - Journal of Inorganic Biochemistry
T1  - Novel diphenyltin(IV) complexes with carboxylato N-functionalized 2- quinolone ligands: Synthesis, characterization and in vitro anticancer studies
VL  - 250
DO  - 10.1016/j.jinorgbio.2023.112399
SP  - 112399
ER  - 

@article{
author = "Kasalović, Marijana P. and Jelača, Sanja and Maksimović-Ivanić, Danijela and Lađarević, Jelena and Radovanović, Lidija and Božić, Bojan and Mijatović, Sanja and Pantelić, Nebojša Đ. and Kaluđerović, Goran N.",
year = "2024",
abstract = "Three new diphenyltin(IV) complexes, bis(3-(4-methyl-2-oxoquinolinyl-1(2H)-yl)propanoato)diphenyltin(IV) (1), bis(2-(4-methyl-2-oxoquinolin-1(2H)-yl)ethanoato)diphenyltin(IV) (2), and bis(2-(4-hydroxy-2-oxoquinolin-1(2H)-yl)ethanoato)diphenyltin(IV) (3), were synthesized and characterized by elemental microanalysis, FT-IR spectroscopy, and multinuclear (1H, 13C and 119Sn) NMR spectroscopy. Crystal structure of ligand precursor, 3-(4-methyl-2-oxoquinolinyl-1(2H)-yl)propanoic acid (HL1), has been determined by X-ray diffraction studies. Asymmetric bidentate coordination of the carboxylato ligands and skew trapezoidal structures are assumed for the synthesized complexes. In vitro anticancer activity of the synthesized diphenyltin(IV) complexes was evaluated against three human: MCF-7 (breast adenocarcinoma), A375 (melanoma), HCT116 (colorectal carcinoma), and three mouse tumor cell lines: 4 T1 (breast carcinoma), B16 (melanoma), CT26 (colon carcinoma) using MTT and CV assays. The IC50 values fall in the range from 0.1 to 3.7 μM. Flow cytometric analysis and fluorescent microscopy suggest that complex 1 induces caspase-dependent apoptosis followed with strong blockade of cell division in HCT116 cells. Since complex 1 showed ROS/RNS scavenging potential mentioned cytotoxicity was not connected with oxidative stress.",
publisher = "Elsevier",
journal = "Journal of Inorganic Biochemistry",
title = "Novel diphenyltin(IV) complexes with carboxylato N-functionalized 2- quinolone ligands: Synthesis, characterization and in vitro anticancer studies",
volume = "250",
doi = "10.1016/j.jinorgbio.2023.112399",
pages = "112399"
}

Kasalović, M. P., Jelača, S., Maksimović-Ivanić, D., Lađarević, J., Radovanović, L., Božić, B., Mijatović, S., Pantelić, N. Đ.,& Kaluđerović, G. N.. (2024). Novel diphenyltin(IV) complexes with carboxylato N-functionalized 2- quinolone ligands: Synthesis, characterization and in vitro anticancer studies. in Journal of Inorganic Biochemistry
Elsevier., 250, 112399.
https://doi.org/10.1016/j.jinorgbio.2023.112399

Kasalović MP, Jelača S, Maksimović-Ivanić D, Lađarević J, Radovanović L, Božić B, Mijatović S, Pantelić NĐ, Kaluđerović GN. Novel diphenyltin(IV) complexes with carboxylato N-functionalized 2- quinolone ligands: Synthesis, characterization and in vitro anticancer studies. in Journal of Inorganic Biochemistry. 2024;250:112399.
doi:10.1016/j.jinorgbio.2023.112399 .

Kasalović, Marijana P., Jelača, Sanja, Maksimović-Ivanić, Danijela, Lađarević, Jelena, Radovanović, Lidija, Božić, Bojan, Mijatović, Sanja, Pantelić, Nebojša Đ., Kaluđerović, Goran N., "Novel diphenyltin(IV) complexes with carboxylato N-functionalized 2- quinolone ligands: Synthesis, characterization and in vitro anticancer studies" in Journal of Inorganic Biochemistry, 250 (2024):112399,
https://doi.org/10.1016/j.jinorgbio.2023.112399 . .

TY  - CONF
AU  - Komazec, Teodora
AU  - Mihajlović, Ekatarina
AU  - Bovan, Dijana
AU  - Mijatović, Sanja
AU  - Predarska, Ivana
AU  - Kaluđerović, Goran N.
AU  - Hey-Hawkins, Evamarie
AU  - Maksimović-Ivanić, Danijela
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/6217
AB  - Overexpression of cyclooxygenase (COX) and thus, prostaglandin E2 in numerous cancers
justified COX inhibitors testing in cancer prevention or treatment 1. Conjugate molecules of
COX inhibitors and common chemotherapeutic drugs, as well as their immobilization in
nanoparticles that increases drug delivery and accumulation in tumor tissue, can potentially
improve approaches in cancer therapy. Cisplatin-naproxen conjugate and corresponding
SBA-15 counterpart decreased the viability of B16 cells. Enlarged and elongated cells with
distinctly granular cytoplasm and the increased presence of lipid droplets were noticed
after haematoxylin–eosin and Oil Red O staining of treated cultures. In addition, enormous
nuclei and markedly heterochromatin foci were confirmed by PI staining indicating
establishment of senescent state upon the treatment. Alongside, differentiation of
melanoma cells toward melanocytes was demonstrated by elevated tyrosinase activity and
presence of melanin, thus leading to reduced tumorigenic potential in vivo. In addition,
cisplatin-naproxen conjugate and corresponding SBA-15 counterpart significantly reduced
melanoma growth in C57BL/6 mice, with lesser signs of toxicity compared to cisplatin as
a positive control. Strong antitumor potential of both, free and immobilized conjugates on
mouse melanoma cells opens numerous possibilities for further research.
PB  - Belgrade: Faculty of Chemistry
C3  - Biochemistry in Biotechnology: Serbian Biochemical Society, Twelfth Conference, International scientific meeting; 2023 Sep 21-23; Belgrade, Serbia
T1  - Cisplatin-naproxen conjugate free and loaded in SBA- 15 indicate morphological changes and antitumor activity in vivo in mouse melanoma model
SP  - 97
EP  - 98
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_6217
ER  - 

@conference{
author = "Komazec, Teodora and Mihajlović, Ekatarina and Bovan, Dijana and Mijatović, Sanja and Predarska, Ivana and Kaluđerović, Goran N. and Hey-Hawkins, Evamarie and Maksimović-Ivanić, Danijela",
year = "2023",
abstract = "Overexpression of cyclooxygenase (COX) and thus, prostaglandin E2 in numerous cancers
justified COX inhibitors testing in cancer prevention or treatment 1. Conjugate molecules of
COX inhibitors and common chemotherapeutic drugs, as well as their immobilization in
nanoparticles that increases drug delivery and accumulation in tumor tissue, can potentially
improve approaches in cancer therapy. Cisplatin-naproxen conjugate and corresponding
SBA-15 counterpart decreased the viability of B16 cells. Enlarged and elongated cells with
distinctly granular cytoplasm and the increased presence of lipid droplets were noticed
after haematoxylin–eosin and Oil Red O staining of treated cultures. In addition, enormous
nuclei and markedly heterochromatin foci were confirmed by PI staining indicating
establishment of senescent state upon the treatment. Alongside, differentiation of
melanoma cells toward melanocytes was demonstrated by elevated tyrosinase activity and
presence of melanin, thus leading to reduced tumorigenic potential in vivo. In addition,
cisplatin-naproxen conjugate and corresponding SBA-15 counterpart significantly reduced
melanoma growth in C57BL/6 mice, with lesser signs of toxicity compared to cisplatin as
a positive control. Strong antitumor potential of both, free and immobilized conjugates on
mouse melanoma cells opens numerous possibilities for further research.",
publisher = "Belgrade: Faculty of Chemistry",
journal = "Biochemistry in Biotechnology: Serbian Biochemical Society, Twelfth Conference, International scientific meeting; 2023 Sep 21-23; Belgrade, Serbia",
title = "Cisplatin-naproxen conjugate free and loaded in SBA- 15 indicate morphological changes and antitumor activity in vivo in mouse melanoma model",
pages = "97-98",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_6217"
}

Komazec, T., Mihajlović, E., Bovan, D., Mijatović, S., Predarska, I., Kaluđerović, G. N., Hey-Hawkins, E.,& Maksimović-Ivanić, D.. (2023). Cisplatin-naproxen conjugate free and loaded in SBA- 15 indicate morphological changes and antitumor activity in vivo in mouse melanoma model. in Biochemistry in Biotechnology: Serbian Biochemical Society, Twelfth Conference, International scientific meeting; 2023 Sep 21-23; Belgrade, Serbia
Belgrade: Faculty of Chemistry., 97-98.
https://hdl.handle.net/21.15107/rcub_ibiss_6217

Komazec T, Mihajlović E, Bovan D, Mijatović S, Predarska I, Kaluđerović GN, Hey-Hawkins E, Maksimović-Ivanić D. Cisplatin-naproxen conjugate free and loaded in SBA- 15 indicate morphological changes and antitumor activity in vivo in mouse melanoma model. in Biochemistry in Biotechnology: Serbian Biochemical Society, Twelfth Conference, International scientific meeting; 2023 Sep 21-23; Belgrade, Serbia. 2023;:97-98.
https://hdl.handle.net/21.15107/rcub_ibiss_6217 .

Komazec, Teodora, Mihajlović, Ekatarina, Bovan, Dijana, Mijatović, Sanja, Predarska, Ivana, Kaluđerović, Goran N., Hey-Hawkins, Evamarie, Maksimović-Ivanić, Danijela, "Cisplatin-naproxen conjugate free and loaded in SBA- 15 indicate morphological changes and antitumor activity in vivo in mouse melanoma model" in Biochemistry in Biotechnology: Serbian Biochemical Society, Twelfth Conference, International scientific meeting; 2023 Sep 21-23; Belgrade, Serbia (2023):97-98,
https://hdl.handle.net/21.15107/rcub_ibiss_6217 .

TY  - JOUR
AU  - Predarska, Ivana
AU  - Saoud, Mohamad
AU  - Drača, Dijana
AU  - Morgan, Ibrahim
AU  - Komazec, Teodora
AU  - Eichhorn, Thomas
AU  - Mihajlović, Ekatarina
AU  - Dunđerović, Duško
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Hey-Hawkins, Evamarie
AU  - Kaluđerović, Goran N.
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5238
AB  - The main reasons for the limited clinical efficacy of the platinum(II)-based agent cisplatin
include drug resistance and significant side effects. Due to their better stability, as well as the
possibility to introduce biologically active ligands in their axial positions constructing multifunctional
prodrugs, creating platinum(IV) complexes is a tempting strategy for addressing these limitations.
Another strategy for developing chemotherapeutics with lower toxicity relies on the ability of
nanoparticles to accumulate in greater quantities in tumor tissues through passive targeting. To
combine the two approaches, three platinum(IV) conjugates based on a cisplatin scaffold containing
in the axial positions derivatives of caffeic and ferulic acid were prepared and loaded into SBA-
15 to produce the corresponding mesoporous silica nanoparticles (MSNs). The free platinum(IV)
conjugates demonstrated higher or comparable activity with respect to cisplatin against different
human breast cancer cell lines, while upon immobilization, superior antiproliferative activity with
markedly increased cytotoxicity (more than 1000-fold lower IC50 values) compared to cisplatin was
observed. Mechanistic investigations with the most potent conjugate, cisplatin-diacetyl caffeate (1),
and the corresponding MSNs (SBA-15|1) in a 4T1 mouse breast cancer cell line showed that these
compounds induce apoptotic cell death causing strong caspase activation. In vivo, in BALB/c mice,
1 and SBA-15|1 inhibited the tumor growth while decreasing the necrotic area and lowering the
mitotic rate.
PB  - Basel: MDPI
T2  - Nanomaterials
T1  - Mesoporous Silica Nanoparticles Enhance the Anticancer Efficacy of Platinum(IV)-Phenolate Conjugates in Breast Cancer Cell Lines
IS  - 21
VL  - 12
DO  - 10.3390/nano12213767
SP  - 3767
ER  - 

@article{
author = "Predarska, Ivana and Saoud, Mohamad and Drača, Dijana and Morgan, Ibrahim and Komazec, Teodora and Eichhorn, Thomas and Mihajlović, Ekatarina and Dunđerović, Duško and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Hey-Hawkins, Evamarie and Kaluđerović, Goran N.",
year = "2022",
abstract = "The main reasons for the limited clinical efficacy of the platinum(II)-based agent cisplatin
include drug resistance and significant side effects. Due to their better stability, as well as the
possibility to introduce biologically active ligands in their axial positions constructing multifunctional
prodrugs, creating platinum(IV) complexes is a tempting strategy for addressing these limitations.
Another strategy for developing chemotherapeutics with lower toxicity relies on the ability of
nanoparticles to accumulate in greater quantities in tumor tissues through passive targeting. To
combine the two approaches, three platinum(IV) conjugates based on a cisplatin scaffold containing
in the axial positions derivatives of caffeic and ferulic acid were prepared and loaded into SBA-
15 to produce the corresponding mesoporous silica nanoparticles (MSNs). The free platinum(IV)
conjugates demonstrated higher or comparable activity with respect to cisplatin against different
human breast cancer cell lines, while upon immobilization, superior antiproliferative activity with
markedly increased cytotoxicity (more than 1000-fold lower IC50 values) compared to cisplatin was
observed. Mechanistic investigations with the most potent conjugate, cisplatin-diacetyl caffeate (1),
and the corresponding MSNs (SBA-15|1) in a 4T1 mouse breast cancer cell line showed that these
compounds induce apoptotic cell death causing strong caspase activation. In vivo, in BALB/c mice,
1 and SBA-15|1 inhibited the tumor growth while decreasing the necrotic area and lowering the
mitotic rate.",
publisher = "Basel: MDPI",
journal = "Nanomaterials",
title = "Mesoporous Silica Nanoparticles Enhance the Anticancer Efficacy of Platinum(IV)-Phenolate Conjugates in Breast Cancer Cell Lines",
number = "21",
volume = "12",
doi = "10.3390/nano12213767",
pages = "3767"
}

Predarska, I., Saoud, M., Drača, D., Morgan, I., Komazec, T., Eichhorn, T., Mihajlović, E., Dunđerović, D., Mijatović, S., Maksimović-Ivanić, D., Hey-Hawkins, E.,& Kaluđerović, G. N.. (2022). Mesoporous Silica Nanoparticles Enhance the Anticancer Efficacy of Platinum(IV)-Phenolate Conjugates in Breast Cancer Cell Lines. in Nanomaterials
Basel: MDPI., 12(21), 3767.
https://doi.org/10.3390/nano12213767

Predarska I, Saoud M, Drača D, Morgan I, Komazec T, Eichhorn T, Mihajlović E, Dunđerović D, Mijatović S, Maksimović-Ivanić D, Hey-Hawkins E, Kaluđerović GN. Mesoporous Silica Nanoparticles Enhance the Anticancer Efficacy of Platinum(IV)-Phenolate Conjugates in Breast Cancer Cell Lines. in Nanomaterials. 2022;12(21):3767.
doi:10.3390/nano12213767 .

Predarska, Ivana, Saoud, Mohamad, Drača, Dijana, Morgan, Ibrahim, Komazec, Teodora, Eichhorn, Thomas, Mihajlović, Ekatarina, Dunđerović, Duško, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Hey-Hawkins, Evamarie, Kaluđerović, Goran N., "Mesoporous Silica Nanoparticles Enhance the Anticancer Efficacy of Platinum(IV)-Phenolate Conjugates in Breast Cancer Cell Lines" in Nanomaterials, 12, no. 21 (2022):3767,
https://doi.org/10.3390/nano12213767 . .

TY  - JOUR
AU  - Krajnović, Tamara
AU  - Pantelić, Nebojša Đ.
AU  - Wolf, Katharina
AU  - Eichhorn, Thomas
AU  - Maksimović-Ivanić, Danijela
AU  - Mijatović, Sanja
AU  - Wessjohann, Ludger A.
AU  - Kaluđerović, Goran N.
PY  - 2022
UR  - https://www.mdpi.com/1996-1944/15/14/5028
UR  - http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=PMC9320346
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5089
AB  - Xanthohumol (XN) and isoxanthohumol (IXN), prenylated flavonoids from Humulus lupulus, have been shown to possess antitumor/cancerprotective, antioxidant, antiinflammatory, and antiangiogenic properties. In this study, mesoporous silica (SBA-15) was loaded with different amounts of xanthohumol and isoxanthohumol and characterized by standard analytical methods. The anticancer potential of XN and IXN loaded into SBA-15 has been evaluated against malignant mouse melanoma B16F10 cells. When these cells were treated with SBA-15 containing xanthohumol, an increase of the activity correlated with a higher immobilization rate of XN was observed. Considering the amount of XN loaded into SBA-15 (calculated from TGA), an improved antitumor potential of XN was observed (IC50 = 10.8 ± 0.4 and 11.8 ± 0.5 µM for SBA-15|XN2 and SBA-15|XN3, respectively; vs. IC50 = 18.5 ± 1.5 µM for free XN). The main mechanism against tumor cells of immobilized XN includes inhibition of proliferation and autophagic cell death. The MC50 values for SBA-15 loaded with isoxanthohumol were over 300 µg/mL in all cases investigated.
PB  - Basel: MDPI
T2  - Materials (Basel, Switzerland)
T1  - Anticancer Potential of Xanthohumol and Isoxanthohumol Loaded into SBA-15 Mesoporous Silica Particles against B16F10 Melanoma Cells.
IS  - 14
VL  - 15
DO  - 10.3390/ma15145028
SP  - 5028
ER  - 

@article{
author = "Krajnović, Tamara and Pantelić, Nebojša Đ. and Wolf, Katharina and Eichhorn, Thomas and Maksimović-Ivanić, Danijela and Mijatović, Sanja and Wessjohann, Ludger A. and Kaluđerović, Goran N.",
year = "2022",
abstract = "Xanthohumol (XN) and isoxanthohumol (IXN), prenylated flavonoids from Humulus lupulus, have been shown to possess antitumor/cancerprotective, antioxidant, antiinflammatory, and antiangiogenic properties. In this study, mesoporous silica (SBA-15) was loaded with different amounts of xanthohumol and isoxanthohumol and characterized by standard analytical methods. The anticancer potential of XN and IXN loaded into SBA-15 has been evaluated against malignant mouse melanoma B16F10 cells. When these cells were treated with SBA-15 containing xanthohumol, an increase of the activity correlated with a higher immobilization rate of XN was observed. Considering the amount of XN loaded into SBA-15 (calculated from TGA), an improved antitumor potential of XN was observed (IC50 = 10.8 ± 0.4 and 11.8 ± 0.5 µM for SBA-15|XN2 and SBA-15|XN3, respectively; vs. IC50 = 18.5 ± 1.5 µM for free XN). The main mechanism against tumor cells of immobilized XN includes inhibition of proliferation and autophagic cell death. The MC50 values for SBA-15 loaded with isoxanthohumol were over 300 µg/mL in all cases investigated.",
publisher = "Basel: MDPI",
journal = "Materials (Basel, Switzerland)",
title = "Anticancer Potential of Xanthohumol and Isoxanthohumol Loaded into SBA-15 Mesoporous Silica Particles against B16F10 Melanoma Cells.",
number = "14",
volume = "15",
doi = "10.3390/ma15145028",
pages = "5028"
}

Krajnović, T., Pantelić, N. Đ., Wolf, K., Eichhorn, T., Maksimović-Ivanić, D., Mijatović, S., Wessjohann, L. A.,& Kaluđerović, G. N.. (2022). Anticancer Potential of Xanthohumol and Isoxanthohumol Loaded into SBA-15 Mesoporous Silica Particles against B16F10 Melanoma Cells.. in Materials (Basel, Switzerland)
Basel: MDPI., 15(14), 5028.
https://doi.org/10.3390/ma15145028

Krajnović T, Pantelić NĐ, Wolf K, Eichhorn T, Maksimović-Ivanić D, Mijatović S, Wessjohann LA, Kaluđerović GN. Anticancer Potential of Xanthohumol and Isoxanthohumol Loaded into SBA-15 Mesoporous Silica Particles against B16F10 Melanoma Cells.. in Materials (Basel, Switzerland). 2022;15(14):5028.
doi:10.3390/ma15145028 .

Krajnović, Tamara, Pantelić, Nebojša Đ., Wolf, Katharina, Eichhorn, Thomas, Maksimović-Ivanić, Danijela, Mijatović, Sanja, Wessjohann, Ludger A., Kaluđerović, Goran N., "Anticancer Potential of Xanthohumol and Isoxanthohumol Loaded into SBA-15 Mesoporous Silica Particles against B16F10 Melanoma Cells." in Materials (Basel, Switzerland), 15, no. 14 (2022):5028,
https://doi.org/10.3390/ma15145028 . .

TY  - JOUR
AU  - Bensing, Christian
AU  - Mojić, Marija
AU  - Bulatović, Mirna
AU  - Edeler, David
AU  - Pérez-Quintanilla, Damian
AU  - Gómez-Ruiz, Santiago
AU  - Maksimović-Ivanić, Danijela
AU  - Mijatović, Sanja
AU  - Kaluđerović, Goran N.
PY  - 2022
UR  - https://linkinghub.elsevier.com/retrieve/pii/S2772950822003314
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5106
AB  - A series of nanostructured SBA-15-based materials functionalized with the tetraorganotin(IV) metallodrugs Ph3Sn(CH2)nOH (n = 3, 4, 6, 8 and 11) are synthesized and structurally characterized by different techniques used in solid-state chemistry. The cytotoxicity of both the organotin(IV) compounds and the tin-functionalized SBA-15 materials are studied against different cancer cell lines observing that the materials have similar cytotoxic activity in comparison with the free organotin compounds in terms of mass. However, considering that the percentage of active metal compound loaded into material is low, the utilization of mesoporous silica as drug vehicle clearly improves the cytotoxic effectiveness of metal-based drugs against cancer cells. One of the most potent between all tested systems is material SBA-15~Cl|Ph3Sn(CH2)8OH. Its cytotoxicity seems to come from additional mechanisms apart from apoptosis provoking cell reprogram in B16 melanoma into more mature and less aggressive phenotype. Moderated production of ROS/RNS is probably in the background of observed phenomenon. Obtained results are further confirmed in syngeneic mouse model of melanoma in C57BL6 mice. The in vivo results show that SBA-15 do not disturb tumor growth, while both Ph3Sn(CH2)8OH and SBA-15~Cl|Ph3Sn(CH2)8OH significantly decreases tumor volume with an enhancement of the antitumor potential of the tetraorganotin(IV) compound upon immobilization in SBA-15.
PB  - Elsevier B.V.
T2  - Biomaterials Advances
T1  - Effect of chain length on the cytotoxic activity of (alkyl-ω-ol)triphenyltin(IV) loaded into SBA-15 nanostructured silica and in vivo study of SBA-15~Cl|Ph3Sn(CH2)8OH.
VL  - 140
DO  - 10.1016/j.bioadv.2022.213054
SP  - 213054
ER  - 

@article{
author = "Bensing, Christian and Mojić, Marija and Bulatović, Mirna and Edeler, David and Pérez-Quintanilla, Damian and Gómez-Ruiz, Santiago and Maksimović-Ivanić, Danijela and Mijatović, Sanja and Kaluđerović, Goran N.",
year = "2022",
abstract = "A series of nanostructured SBA-15-based materials functionalized with the tetraorganotin(IV) metallodrugs Ph3Sn(CH2)nOH (n = 3, 4, 6, 8 and 11) are synthesized and structurally characterized by different techniques used in solid-state chemistry. The cytotoxicity of both the organotin(IV) compounds and the tin-functionalized SBA-15 materials are studied against different cancer cell lines observing that the materials have similar cytotoxic activity in comparison with the free organotin compounds in terms of mass. However, considering that the percentage of active metal compound loaded into material is low, the utilization of mesoporous silica as drug vehicle clearly improves the cytotoxic effectiveness of metal-based drugs against cancer cells. One of the most potent between all tested systems is material SBA-15~Cl|Ph3Sn(CH2)8OH. Its cytotoxicity seems to come from additional mechanisms apart from apoptosis provoking cell reprogram in B16 melanoma into more mature and less aggressive phenotype. Moderated production of ROS/RNS is probably in the background of observed phenomenon. Obtained results are further confirmed in syngeneic mouse model of melanoma in C57BL6 mice. The in vivo results show that SBA-15 do not disturb tumor growth, while both Ph3Sn(CH2)8OH and SBA-15~Cl|Ph3Sn(CH2)8OH significantly decreases tumor volume with an enhancement of the antitumor potential of the tetraorganotin(IV) compound upon immobilization in SBA-15.",
publisher = "Elsevier B.V.",
journal = "Biomaterials Advances",
title = "Effect of chain length on the cytotoxic activity of (alkyl-ω-ol)triphenyltin(IV) loaded into SBA-15 nanostructured silica and in vivo study of SBA-15~Cl|Ph3Sn(CH2)8OH.",
volume = "140",
doi = "10.1016/j.bioadv.2022.213054",
pages = "213054"
}

Bensing, C., Mojić, M., Bulatović, M., Edeler, D., Pérez-Quintanilla, D., Gómez-Ruiz, S., Maksimović-Ivanić, D., Mijatović, S.,& Kaluđerović, G. N.. (2022). Effect of chain length on the cytotoxic activity of (alkyl-ω-ol)triphenyltin(IV) loaded into SBA-15 nanostructured silica and in vivo study of SBA-15~Cl|Ph3Sn(CH2)8OH.. in Biomaterials Advances
Elsevier B.V.., 140, 213054.
https://doi.org/10.1016/j.bioadv.2022.213054

Bensing C, Mojić M, Bulatović M, Edeler D, Pérez-Quintanilla D, Gómez-Ruiz S, Maksimović-Ivanić D, Mijatović S, Kaluđerović GN. Effect of chain length on the cytotoxic activity of (alkyl-ω-ol)triphenyltin(IV) loaded into SBA-15 nanostructured silica and in vivo study of SBA-15~Cl|Ph3Sn(CH2)8OH.. in Biomaterials Advances. 2022;140:213054.
doi:10.1016/j.bioadv.2022.213054 .

Bensing, Christian, Mojić, Marija, Bulatović, Mirna, Edeler, David, Pérez-Quintanilla, Damian, Gómez-Ruiz, Santiago, Maksimović-Ivanić, Danijela, Mijatović, Sanja, Kaluđerović, Goran N., "Effect of chain length on the cytotoxic activity of (alkyl-ω-ol)triphenyltin(IV) loaded into SBA-15 nanostructured silica and in vivo study of SBA-15~Cl|Ph3Sn(CH2)8OH." in Biomaterials Advances, 140 (2022):213054,
https://doi.org/10.1016/j.bioadv.2022.213054 . .

TY  - CONF
AU  - Drača, Dijana
AU  - Predarska, Ivana
AU  - Komazec, Teodora
AU  - Mihajlović, Ekatarina
AU  - Kaluđerović, Goran N.
AU  - Mijatović, Sanja
AU  - Hey-Hawkins, Evamarie
AU  - Maksimović-Ivanić, Danijela
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5288
AB  - Severe side effects and drug resistance are the main obstacles in clinical usage of cisplatin. The preparation of platinum(IV) prodrugs and the use of nanoparticles might be potential paths for overcoming the problem of toxicity. Caffeic acid is plant metabolite with many pharmacological effects such as antiinflammatory, anticancer, and hepatoprotective1. In this study, a hybrid molecule build up from cisplatin and acetylated caffeic acid, free and loaded into nanoparticles, SBA-15, was evaluated as an anticancer agent. Cytotoxic studies revealed that free conjugate possessed similar activity as cisplatin alone against 4T1 cell line, while upon imobilisation in SBA-15, much improved cytotoxicity was noticed. Further investigation showed that these compounds induced caspase-dependent apoptosis and an accumulation of cells in the subG compartment of the cell cycle. Intensive production of oxygen and nitrogen radicals was also observed. Also, survived clones lost their dividing potential. Mode of action of this cisplatin-caffeic acid conjugate against 4T1 cells makes it valuable in futher research, from the side of enhancement of its antitumour activity upon mobilisation into nanoparticles and potential reduced toxicity in vivo.
PB  - Belgrade: Faculty of Chemistry
C3  - Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia
T1  - Mesoporous silica nanoparticles improve the antitumour activity of cisplatin-acetylated caffeic acid conjugate
SP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5288
ER  - 

@conference{
author = "Drača, Dijana and Predarska, Ivana and Komazec, Teodora and Mihajlović, Ekatarina and Kaluđerović, Goran N. and Mijatović, Sanja and Hey-Hawkins, Evamarie and Maksimović-Ivanić, Danijela",
year = "2022",
abstract = "Severe side effects and drug resistance are the main obstacles in clinical usage of cisplatin. The preparation of platinum(IV) prodrugs and the use of nanoparticles might be potential paths for overcoming the problem of toxicity. Caffeic acid is plant metabolite with many pharmacological effects such as antiinflammatory, anticancer, and hepatoprotective1. In this study, a hybrid molecule build up from cisplatin and acetylated caffeic acid, free and loaded into nanoparticles, SBA-15, was evaluated as an anticancer agent. Cytotoxic studies revealed that free conjugate possessed similar activity as cisplatin alone against 4T1 cell line, while upon imobilisation in SBA-15, much improved cytotoxicity was noticed. Further investigation showed that these compounds induced caspase-dependent apoptosis and an accumulation of cells in the subG compartment of the cell cycle. Intensive production of oxygen and nitrogen radicals was also observed. Also, survived clones lost their dividing potential. Mode of action of this cisplatin-caffeic acid conjugate against 4T1 cells makes it valuable in futher research, from the side of enhancement of its antitumour activity upon mobilisation into nanoparticles and potential reduced toxicity in vivo.",
publisher = "Belgrade: Faculty of Chemistry",
journal = "Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia",
title = "Mesoporous silica nanoparticles improve the antitumour activity of cisplatin-acetylated caffeic acid conjugate",
pages = "62",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5288"
}

Drača, D., Predarska, I., Komazec, T., Mihajlović, E., Kaluđerović, G. N., Mijatović, S., Hey-Hawkins, E.,& Maksimović-Ivanić, D.. (2022). Mesoporous silica nanoparticles improve the antitumour activity of cisplatin-acetylated caffeic acid conjugate. in Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia
Belgrade: Faculty of Chemistry., 62.
https://hdl.handle.net/21.15107/rcub_ibiss_5288

Drača D, Predarska I, Komazec T, Mihajlović E, Kaluđerović GN, Mijatović S, Hey-Hawkins E, Maksimović-Ivanić D. Mesoporous silica nanoparticles improve the antitumour activity of cisplatin-acetylated caffeic acid conjugate. in Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia. 2022;:62.
https://hdl.handle.net/21.15107/rcub_ibiss_5288 .

Drača, Dijana, Predarska, Ivana, Komazec, Teodora, Mihajlović, Ekatarina, Kaluđerović, Goran N., Mijatović, Sanja, Hey-Hawkins, Evamarie, Maksimović-Ivanić, Danijela, "Mesoporous silica nanoparticles improve the antitumour activity of cisplatin-acetylated caffeic acid conjugate" in Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia (2022):62,
https://hdl.handle.net/21.15107/rcub_ibiss_5288 .

TY  - CONF
AU  - Komazec, Teodora
AU  - Drača, Dijana
AU  - Mijatović, Sanja
AU  - Predarska, Ivana
AU  - Kaluđerović, Goran N.
AU  - Hey-Hawkins, Evamarie
AU  - Maksimović-Ivanić, Danijela
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5284
AB  - From its discovery, cisplatin therapy has widely been associated with toxicity and severe side effects. Platinum(IV) complexes, as well as immobilising them in nanomaterials could help to overcome these problems. Cyclooxygenase-2 (COX-2) is involved in cancer progresssion,1 which encourages the development of inhibitors of COX enzymes in antitumour therapy. To determine the potential cytotoxic effect, a cisplatin-ibuprofen conjugate in free form, as well as loaded into SBA-15 nanomaterial, was tested on 4T1, CT26, B16 and MC38 cell lines. The results of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and crystal violet viability assays showed that both agents dose-dependently decreased the number of viable cells of all tested cell lines. Flow cytometric analysis revealed significant decrease in the division potential of B16-treated cells. In further investigations, activation of caspases proved by ApoStat assay was noticed; however, apoptosis was not identified by flow cytometry in culture of treated B16 cells. Finally, light microscopy evaluation revealed the presence of enlarged cells with prominent heterochromatin foci in nuclei upon the treatment indicating that cells entered senescent state. High antitumour potential defined at the nanomolar concentration on mouse melanoma cells make cisplatin-ibuprofen a suitable candidate for further research.
PB  - Belgrade: Faculty of Chemistry
C3  - Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia
T1  - Cisplatin-ibuprofen conjugate free and immobilised in mesoporous silica nanoparticle SBA-15 indicate high antiproliferative potential on mouse cancer cell lines
SP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5284
ER  - 

@conference{
author = "Komazec, Teodora and Drača, Dijana and Mijatović, Sanja and Predarska, Ivana and Kaluđerović, Goran N. and Hey-Hawkins, Evamarie and Maksimović-Ivanić, Danijela",
year = "2022",
abstract = "From its discovery, cisplatin therapy has widely been associated with toxicity and severe side effects. Platinum(IV) complexes, as well as immobilising them in nanomaterials could help to overcome these problems. Cyclooxygenase-2 (COX-2) is involved in cancer progresssion,1 which encourages the development of inhibitors of COX enzymes in antitumour therapy. To determine the potential cytotoxic effect, a cisplatin-ibuprofen conjugate in free form, as well as loaded into SBA-15 nanomaterial, was tested on 4T1, CT26, B16 and MC38 cell lines. The results of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and crystal violet viability assays showed that both agents dose-dependently decreased the number of viable cells of all tested cell lines. Flow cytometric analysis revealed significant decrease in the division potential of B16-treated cells. In further investigations, activation of caspases proved by ApoStat assay was noticed; however, apoptosis was not identified by flow cytometry in culture of treated B16 cells. Finally, light microscopy evaluation revealed the presence of enlarged cells with prominent heterochromatin foci in nuclei upon the treatment indicating that cells entered senescent state. High antitumour potential defined at the nanomolar concentration on mouse melanoma cells make cisplatin-ibuprofen a suitable candidate for further research.",
publisher = "Belgrade: Faculty of Chemistry",
journal = "Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia",
title = "Cisplatin-ibuprofen conjugate free and immobilised in mesoporous silica nanoparticle SBA-15 indicate high antiproliferative potential on mouse cancer cell lines",
pages = "83",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5284"
}

Komazec, T., Drača, D., Mijatović, S., Predarska, I., Kaluđerović, G. N., Hey-Hawkins, E.,& Maksimović-Ivanić, D.. (2022). Cisplatin-ibuprofen conjugate free and immobilised in mesoporous silica nanoparticle SBA-15 indicate high antiproliferative potential on mouse cancer cell lines. in Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia
Belgrade: Faculty of Chemistry., 83.
https://hdl.handle.net/21.15107/rcub_ibiss_5284

Komazec T, Drača D, Mijatović S, Predarska I, Kaluđerović GN, Hey-Hawkins E, Maksimović-Ivanić D. Cisplatin-ibuprofen conjugate free and immobilised in mesoporous silica nanoparticle SBA-15 indicate high antiproliferative potential on mouse cancer cell lines. in Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia. 2022;:83.
https://hdl.handle.net/21.15107/rcub_ibiss_5284 .

Komazec, Teodora, Drača, Dijana, Mijatović, Sanja, Predarska, Ivana, Kaluđerović, Goran N., Hey-Hawkins, Evamarie, Maksimović-Ivanić, Danijela, "Cisplatin-ibuprofen conjugate free and immobilised in mesoporous silica nanoparticle SBA-15 indicate high antiproliferative potential on mouse cancer cell lines" in Proceedings: Serbian Biochemical Society, Eleventh Conference, Scientific meeting of an international character: "Amazing Biochemistry"; 2022 Sep 22-23; Novi Sad, Serbia (2022):83,
https://hdl.handle.net/21.15107/rcub_ibiss_5284 .

TY  - JOUR
AU  - Drača, Dijana
AU  - Edeler, David
AU  - Saoud, Mohamad
AU  - Dojčinović, Biljana
AU  - Dunđerović, Duško
AU  - Đmura, Goran
AU  - Maksimović-Ivanić, Danijela
AU  - Mijatović, Sanja
AU  - Kaluđerović, Goran N.
PY  - 2021
UR  - internal-pdf://Drača et al. - 2021 - Antitumor potential of cisplatin loaded into SBA-15 mesoporous silica nanoparticles against B16F1 melanoma cells i.pdf
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0162013421000301
UR  - http://www.ncbi.nlm.nih.gov/pubmed/33582397
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4154
AB  - CP (cisplatin) and mesoporous silica SBA-15 (Santa Barbara amorphous 15) loaded with CP (→SBA-15|CP) were tested in vitro and in vivo against low metastatic mouse melanoma B16F1 cell line. SBA-15 only, as drug carrier, is found to be not active, while CP and SBA-15|CP revealed high cytotoxicity in lower μM range. The activity of SBA-15|CP was found similar to the activity of CP alone. Both CP and SBA-15|CP induced inhibition of cell proliferation (carboxyfluorescein succinimidyl ester - CFSE assay) along with G2/M arrest (4',6-diamidino-2-phenylindole - DAPI assay). Apoptosis (Annexin V/ propidium iodide - PI assay), through caspase activation (apostat assay) and nitric oxide (NO) production (diacetate(4-amino-5-methylamino-2',7'-difluorofluorescein-diacetat) - DAF FM assay), was identified as main mode of cell death. However, slight elevated autophagy (acridine orange - AO assay) was detected in treated B16F1 cells. CP and SBA-15|CP did not affect production of ROS (reactive oxygen species) in B16F1 cells. Both SBA-15|CP and CP induced in B16F1 G2 arrest and subsequent senescence. SBA-15|CP, but not CP, blocked the growth of melanoma in C57BL/6 mice. Moreover, hepato- and nephrotoxicity in SBA-15|CP treated animals were diminished in comparison to CP confirming multiply improved antitumor potential of immobilized CP. Outstandingly, SBA-15 boosted in vivo activity and diminished side effects of CP.
PB  - Elsevier BV
T2  - Journal of Inorganic Biochemistry
T1  - Antitumor potential of cisplatin loaded into SBA-15 mesoporous silica nanoparticles against B16F1 melanoma cells: in vitro and in vivo studies.
VL  - 217
DO  - 10.1016/j.jinorgbio.2021.111383
SP  - 111383
ER  - 

@article{
author = "Drača, Dijana and Edeler, David and Saoud, Mohamad and Dojčinović, Biljana and Dunđerović, Duško and Đmura, Goran and Maksimović-Ivanić, Danijela and Mijatović, Sanja and Kaluđerović, Goran N.",
year = "2021",
abstract = "CP (cisplatin) and mesoporous silica SBA-15 (Santa Barbara amorphous 15) loaded with CP (→SBA-15|CP) were tested in vitro and in vivo against low metastatic mouse melanoma B16F1 cell line. SBA-15 only, as drug carrier, is found to be not active, while CP and SBA-15|CP revealed high cytotoxicity in lower μM range. The activity of SBA-15|CP was found similar to the activity of CP alone. Both CP and SBA-15|CP induced inhibition of cell proliferation (carboxyfluorescein succinimidyl ester - CFSE assay) along with G2/M arrest (4',6-diamidino-2-phenylindole - DAPI assay). Apoptosis (Annexin V/ propidium iodide - PI assay), through caspase activation (apostat assay) and nitric oxide (NO) production (diacetate(4-amino-5-methylamino-2',7'-difluorofluorescein-diacetat) - DAF FM assay), was identified as main mode of cell death. However, slight elevated autophagy (acridine orange - AO assay) was detected in treated B16F1 cells. CP and SBA-15|CP did not affect production of ROS (reactive oxygen species) in B16F1 cells. Both SBA-15|CP and CP induced in B16F1 G2 arrest and subsequent senescence. SBA-15|CP, but not CP, blocked the growth of melanoma in C57BL/6 mice. Moreover, hepato- and nephrotoxicity in SBA-15|CP treated animals were diminished in comparison to CP confirming multiply improved antitumor potential of immobilized CP. Outstandingly, SBA-15 boosted in vivo activity and diminished side effects of CP.",
publisher = "Elsevier BV",
journal = "Journal of Inorganic Biochemistry",
title = "Antitumor potential of cisplatin loaded into SBA-15 mesoporous silica nanoparticles against B16F1 melanoma cells: in vitro and in vivo studies.",
volume = "217",
doi = "10.1016/j.jinorgbio.2021.111383",
pages = "111383"
}

Drača, D., Edeler, D., Saoud, M., Dojčinović, B., Dunđerović, D., Đmura, G., Maksimović-Ivanić, D., Mijatović, S.,& Kaluđerović, G. N.. (2021). Antitumor potential of cisplatin loaded into SBA-15 mesoporous silica nanoparticles against B16F1 melanoma cells: in vitro and in vivo studies.. in Journal of Inorganic Biochemistry
Elsevier BV., 217, 111383.
https://doi.org/10.1016/j.jinorgbio.2021.111383

Drača D, Edeler D, Saoud M, Dojčinović B, Dunđerović D, Đmura G, Maksimović-Ivanić D, Mijatović S, Kaluđerović GN. Antitumor potential of cisplatin loaded into SBA-15 mesoporous silica nanoparticles against B16F1 melanoma cells: in vitro and in vivo studies.. in Journal of Inorganic Biochemistry. 2021;217:111383.
doi:10.1016/j.jinorgbio.2021.111383 .

Drača, Dijana, Edeler, David, Saoud, Mohamad, Dojčinović, Biljana, Dunđerović, Duško, Đmura, Goran, Maksimović-Ivanić, Danijela, Mijatović, Sanja, Kaluđerović, Goran N., "Antitumor potential of cisplatin loaded into SBA-15 mesoporous silica nanoparticles against B16F1 melanoma cells: in vitro and in vivo studies." in Journal of Inorganic Biochemistry, 217 (2021):111383,
https://doi.org/10.1016/j.jinorgbio.2021.111383 . .

TY  - JOUR
AU  - Maksimović-Ivanić, Danijela
AU  - Bulatović, Mirna
AU  - Edeler, David
AU  - Bensing, Christian
AU  - Golić, Igor
AU  - Korać, Aleksandra
AU  - Kaluđerović, Goran N.
AU  - Mijatović, Sanja
PY  - 2019
UR  - http://link.springer.com/10.1007/s00775-019-01640-x
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3276
AB  - Extraordinary progress in medicinal inorganic chemistry in the past few years led to the rational design of novel platinum compounds, as well as nonplatinum metal-based antitumor agents, including organotin compounds, whose activity is not based on unrepairable interaction with DNA. To overcome poor solubility and toxicity problems that limited the application of these compounds numerous delivering systems were used (Lila et al. in Biol Pharm Bull 37:206–211, 2014; Yue and Cao in Curr Cancer Drug Targets 16:480–488, 2016; Duan et al. in WIREs Nanomed Nanobiotechnol 8:776–791, 2016). Regarding high drug loading capacity, mesoporous silica nanoparticles like SBA-15 became more important for targeted drug delivery. In this study, cellular uptake and biological activities responsible for organotin(IV) compound Ph3Sn(CH2)6OH (Sn6) grafted into (3-chloropropyl)triethoxysilane functionalized SBA-15 (SBA-15p → SBA-15p|Sn6) were evaluated in human melanoma A375 cell line. Moreover, the influence of SBA-15p grafted with organotin(IV) compound on the stemness of A375 cell was tested. Given the fact that SBA-15p|Sn6 nanoparticles are nonspherical and relatively large, their internalization efficiently started even after 15 min with stable adhesion to the cell membrane. After only 2 h of incubation of A375 cells with SBA-15p|Sn6 passive fluid-phase uptake and macropinocytosis were observed. Inside of the cell, treatment with SBA-15p loaded with Sn6 promoted caspase-dependent apoptosis in parallel with senescence development. The subpopulation of cells expressing Schwann-like phenotype arose upon the treatment, while the signaling pathway responsible for maintenance of pluripotency and invasiveness, Wnt, Notch1, and Oct3/4 were modulated towards less aggressive signature. In summary, SBA-15p enhances the efficacy of free Sn6 compound through efficient uptake and well profiled intracellular response followed with decreased stem characteristics of highly invasive A375 melanoma cells.
T2  - JBIC Journal of Biological Inorganic Chemistry
T1  - The interaction between SBA-15 derivative loaded with Ph3Sn(CH2)6OH and human melanoma A375 cell line: uptake and stem phenotype loss
DO  - 10.1007/s00775-019-01640-x
ER  - 

@article{
author = "Maksimović-Ivanić, Danijela and Bulatović, Mirna and Edeler, David and Bensing, Christian and Golić, Igor and Korać, Aleksandra and Kaluđerović, Goran N. and Mijatović, Sanja",
year = "2019",
abstract = "Extraordinary progress in medicinal inorganic chemistry in the past few years led to the rational design of novel platinum compounds, as well as nonplatinum metal-based antitumor agents, including organotin compounds, whose activity is not based on unrepairable interaction with DNA. To overcome poor solubility and toxicity problems that limited the application of these compounds numerous delivering systems were used (Lila et al. in Biol Pharm Bull 37:206–211, 2014; Yue and Cao in Curr Cancer Drug Targets 16:480–488, 2016; Duan et al. in WIREs Nanomed Nanobiotechnol 8:776–791, 2016). Regarding high drug loading capacity, mesoporous silica nanoparticles like SBA-15 became more important for targeted drug delivery. In this study, cellular uptake and biological activities responsible for organotin(IV) compound Ph3Sn(CH2)6OH (Sn6) grafted into (3-chloropropyl)triethoxysilane functionalized SBA-15 (SBA-15p → SBA-15p|Sn6) were evaluated in human melanoma A375 cell line. Moreover, the influence of SBA-15p grafted with organotin(IV) compound on the stemness of A375 cell was tested. Given the fact that SBA-15p|Sn6 nanoparticles are nonspherical and relatively large, their internalization efficiently started even after 15 min with stable adhesion to the cell membrane. After only 2 h of incubation of A375 cells with SBA-15p|Sn6 passive fluid-phase uptake and macropinocytosis were observed. Inside of the cell, treatment with SBA-15p loaded with Sn6 promoted caspase-dependent apoptosis in parallel with senescence development. The subpopulation of cells expressing Schwann-like phenotype arose upon the treatment, while the signaling pathway responsible for maintenance of pluripotency and invasiveness, Wnt, Notch1, and Oct3/4 were modulated towards less aggressive signature. In summary, SBA-15p enhances the efficacy of free Sn6 compound through efficient uptake and well profiled intracellular response followed with decreased stem characteristics of highly invasive A375 melanoma cells.",
journal = "JBIC Journal of Biological Inorganic Chemistry",
title = "The interaction between SBA-15 derivative loaded with Ph3Sn(CH2)6OH and human melanoma A375 cell line: uptake and stem phenotype loss",
doi = "10.1007/s00775-019-01640-x"
}

Maksimović-Ivanić, D., Bulatović, M., Edeler, D., Bensing, C., Golić, I., Korać, A., Kaluđerović, G. N.,& Mijatović, S.. (2019). The interaction between SBA-15 derivative loaded with Ph3Sn(CH2)6OH and human melanoma A375 cell line: uptake and stem phenotype loss. in JBIC Journal of Biological Inorganic Chemistry.
https://doi.org/10.1007/s00775-019-01640-x

Maksimović-Ivanić D, Bulatović M, Edeler D, Bensing C, Golić I, Korać A, Kaluđerović GN, Mijatović S. The interaction between SBA-15 derivative loaded with Ph3Sn(CH2)6OH and human melanoma A375 cell line: uptake and stem phenotype loss. in JBIC Journal of Biological Inorganic Chemistry. 2019;.
doi:10.1007/s00775-019-01640-x .

Maksimović-Ivanić, Danijela, Bulatović, Mirna, Edeler, David, Bensing, Christian, Golić, Igor, Korać, Aleksandra, Kaluđerović, Goran N., Mijatović, Sanja, "The interaction between SBA-15 derivative loaded with Ph3Sn(CH2)6OH and human melanoma A375 cell line: uptake and stem phenotype loss" in JBIC Journal of Biological Inorganic Chemistry (2019),
https://doi.org/10.1007/s00775-019-01640-x . .

TY  - JOUR
AU  - Drača, Dijana
AU  - Mijatović, Sanja
AU  - Krajnović, Tamara
AU  - Kaluđerović, Goran N
AU  - Wessjohann, Ludger A
AU  - Maksimović-Ivanić, Danijela
PY  - 2019
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3484
UR  - http://ar.iiarjournals.org/content/39/10/5403
AB  - BACKGROUND/AIM Tubugi-1 is a more stable and accessible synthetic counterpart of natural tubulysins. This study aimed to evaluate its cytotoxic potential against anaplastic human melanoma cells. MATERIALS AND METHODS The viability of A-375 cells was determined by 3-(4,5-dimethythiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and crystal violet assay. The type of cell death and proliferative rate were investigated using flow cytometry and fluorescent microscopy, while the molecular background was evaluated by western blot. RESULTS Tubugi-1 reduced the viability of A-375 cells, inducing massive micronucleation, followed by augmented expression of inhibitor of nuclear factor-κB and caspase-2, typical of a mitotic catastrophe. Disturbed proliferation and G2M block with prominent caspase activity, weakened the expression of B-cell lymphoma 2 and B-cell lymphoma 2-associated X transient up-regulation, coexisted with intensive autophagy. Specific inhibition of autophagy by chloroquine resulted in conversion from mitotic catastrophe to rapid apoptosis. CONCLUSION Multilevel anticancer action of tubugi-1 is extended by co-application of an autophagy inhibitor, giving a new dimension in further preclinical advancement of this potential agent.
T2  - Anticancer Research
T1  - Synthetic Tubulysin Derivative, Tubugi-1, Against Invasive Melanoma Cells: The Cell Death Triangle.
IS  - 10
VL  - 39
DO  - 10.21873/anticanres.13734
SP  - 5403
EP  - 5415
ER  - 

@article{
author = "Drača, Dijana and Mijatović, Sanja and Krajnović, Tamara and Kaluđerović, Goran N and Wessjohann, Ludger A and Maksimović-Ivanić, Danijela",
year = "2019",
abstract = "BACKGROUND/AIM Tubugi-1 is a more stable and accessible synthetic counterpart of natural tubulysins. This study aimed to evaluate its cytotoxic potential against anaplastic human melanoma cells. MATERIALS AND METHODS The viability of A-375 cells was determined by 3-(4,5-dimethythiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and crystal violet assay. The type of cell death and proliferative rate were investigated using flow cytometry and fluorescent microscopy, while the molecular background was evaluated by western blot. RESULTS Tubugi-1 reduced the viability of A-375 cells, inducing massive micronucleation, followed by augmented expression of inhibitor of nuclear factor-κB and caspase-2, typical of a mitotic catastrophe. Disturbed proliferation and G2M block with prominent caspase activity, weakened the expression of B-cell lymphoma 2 and B-cell lymphoma 2-associated X transient up-regulation, coexisted with intensive autophagy. Specific inhibition of autophagy by chloroquine resulted in conversion from mitotic catastrophe to rapid apoptosis. CONCLUSION Multilevel anticancer action of tubugi-1 is extended by co-application of an autophagy inhibitor, giving a new dimension in further preclinical advancement of this potential agent.",
journal = "Anticancer Research",
title = "Synthetic Tubulysin Derivative, Tubugi-1, Against Invasive Melanoma Cells: The Cell Death Triangle.",
number = "10",
volume = "39",
doi = "10.21873/anticanres.13734",
pages = "5403-5415"
}

Drača, D., Mijatović, S., Krajnović, T., Kaluđerović, G. N., Wessjohann, L. A.,& Maksimović-Ivanić, D.. (2019). Synthetic Tubulysin Derivative, Tubugi-1, Against Invasive Melanoma Cells: The Cell Death Triangle.. in Anticancer Research, 39(10), 5403-5415.
https://doi.org/10.21873/anticanres.13734

Drača D, Mijatović S, Krajnović T, Kaluđerović GN, Wessjohann LA, Maksimović-Ivanić D. Synthetic Tubulysin Derivative, Tubugi-1, Against Invasive Melanoma Cells: The Cell Death Triangle.. in Anticancer Research. 2019;39(10):5403-5415.
doi:10.21873/anticanres.13734 .

Drača, Dijana, Mijatović, Sanja, Krajnović, Tamara, Kaluđerović, Goran N, Wessjohann, Ludger A, Maksimović-Ivanić, Danijela, "Synthetic Tubulysin Derivative, Tubugi-1, Against Invasive Melanoma Cells: The Cell Death Triangle." in Anticancer Research, 39, no. 10 (2019):5403-5415,
https://doi.org/10.21873/anticanres.13734 . .

TY  - JOUR
AU  - Edeler, David
AU  - Drača, Dijana
AU  - Petković, Vladana
AU  - Natalio, Filipe
AU  - Maksimović-Ivanić, Danijela
AU  - Mijatović, Sanja
AU  - Schmidt, Harry
AU  - Kaluđerović, Goran N.
PY  - 2019
UR  - https://www.sciencedirect.com/science/article/pii/S0928493118329175?via%3Dihub
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3302
AB  - Herein appropriateness of nonfunctionalized mesoporous silica nanoparticles SBA-15 and functionalized with (3-chloropropyl)triethoxysilane (→ SBA-15~Cl) and (3-aminopropyl)triethoxysilane (→ SBA-15~NH2) on delivery of physically adsorbed Ph3Sn(CH2)6OH (Sn6) is evaluated. Fluorescent nanomaterial, bearing isatoic moiety, loaded with Sn6 (→ SBA-15~NF|Sn6) was used for cellular uptake study. The fluorescent nanomaterial is efficiently acquired and distributed into the cytoplasm of the cells even after 2 h of cultivation. According to the attained data, all SBA-15 materials loaded with Sn6 diminished cellular viability in dose dependent manner while carriers alone (SBA-15, SBA-15~Cl, SBA-15~NH2) did not show cytotoxicity against B16 cells. According to the MC50 values structural modification of SBA-15 did not improve the efficacy of tested drug. While progressive apoptosis was detected upon the treatment with SBA-15|Sn6, exposure of cells to SBA-15~NH2|Sn6 revealed extinguished apoptosis in time, accompanied with lower caspase activity. This effect is probably due to triggered autophagic process under the treatment with the SBA-15~NH2|Sn6, thus opposed to apoptosis. Presented results suggested that functionalization of SBA-15 was not beneficial for the efficacy of loaded drug, thus, all of them are almost equally efficient considering loaded Sn6 content. Importantly, functionalization of SBA-15 does have an influence on the mode of action and differentiation inducing properties.
T2  - Materials Science and Engineering: C
T1  - Impact of the mesoporous silica SBA-15 functionalization on the mode of action of Ph3Sn(CH2)6OH
VL  - 100
DO  - 10.1016/J.MSEC.2019.03.010
SP  - 315
EP  - 322
ER  - 

@article{
author = "Edeler, David and Drača, Dijana and Petković, Vladana and Natalio, Filipe and Maksimović-Ivanić, Danijela and Mijatović, Sanja and Schmidt, Harry and Kaluđerović, Goran N.",
year = "2019",
abstract = "Herein appropriateness of nonfunctionalized mesoporous silica nanoparticles SBA-15 and functionalized with (3-chloropropyl)triethoxysilane (→ SBA-15~Cl) and (3-aminopropyl)triethoxysilane (→ SBA-15~NH2) on delivery of physically adsorbed Ph3Sn(CH2)6OH (Sn6) is evaluated. Fluorescent nanomaterial, bearing isatoic moiety, loaded with Sn6 (→ SBA-15~NF|Sn6) was used for cellular uptake study. The fluorescent nanomaterial is efficiently acquired and distributed into the cytoplasm of the cells even after 2 h of cultivation. According to the attained data, all SBA-15 materials loaded with Sn6 diminished cellular viability in dose dependent manner while carriers alone (SBA-15, SBA-15~Cl, SBA-15~NH2) did not show cytotoxicity against B16 cells. According to the MC50 values structural modification of SBA-15 did not improve the efficacy of tested drug. While progressive apoptosis was detected upon the treatment with SBA-15|Sn6, exposure of cells to SBA-15~NH2|Sn6 revealed extinguished apoptosis in time, accompanied with lower caspase activity. This effect is probably due to triggered autophagic process under the treatment with the SBA-15~NH2|Sn6, thus opposed to apoptosis. Presented results suggested that functionalization of SBA-15 was not beneficial for the efficacy of loaded drug, thus, all of them are almost equally efficient considering loaded Sn6 content. Importantly, functionalization of SBA-15 does have an influence on the mode of action and differentiation inducing properties.",
journal = "Materials Science and Engineering: C",
title = "Impact of the mesoporous silica SBA-15 functionalization on the mode of action of Ph3Sn(CH2)6OH",
volume = "100",
doi = "10.1016/J.MSEC.2019.03.010",
pages = "315-322"
}

Edeler, D., Drača, D., Petković, V., Natalio, F., Maksimović-Ivanić, D., Mijatović, S., Schmidt, H.,& Kaluđerović, G. N.. (2019). Impact of the mesoporous silica SBA-15 functionalization on the mode of action of Ph3Sn(CH2)6OH. in Materials Science and Engineering: C, 100, 315-322.
https://doi.org/10.1016/J.MSEC.2019.03.010

Edeler D, Drača D, Petković V, Natalio F, Maksimović-Ivanić D, Mijatović S, Schmidt H, Kaluđerović GN. Impact of the mesoporous silica SBA-15 functionalization on the mode of action of Ph3Sn(CH2)6OH. in Materials Science and Engineering: C. 2019;100:315-322.
doi:10.1016/J.MSEC.2019.03.010 .

Edeler, David, Drača, Dijana, Petković, Vladana, Natalio, Filipe, Maksimović-Ivanić, Danijela, Mijatović, Sanja, Schmidt, Harry, Kaluđerović, Goran N., "Impact of the mesoporous silica SBA-15 functionalization on the mode of action of Ph3Sn(CH2)6OH" in Materials Science and Engineering: C, 100 (2019):315-322,
https://doi.org/10.1016/J.MSEC.2019.03.010 . .

TY  - JOUR
AU  - Drača, Dijana
AU  - Mijatović, Sanja
AU  - Krajnović, Tamara
AU  - Bogdanović Pristov, Jelena
AU  - Đukić, Tatjana
AU  - Kaluđerović, Goran N.
AU  - Wessjohann, Ludger A.
AU  - Maksimović-Ivanić, Danijela
PY  - 2019
UR  - https://www.sciencedirect.com/science/article/pii/S0014482719302125?via%3Dihub
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3345
AB  - Synthetic tubugis are equally potent but more stable than their natural forms. Their anticancer potential was estimated on a solid melanoma in vitro and in vivo. Tubugi-1 induced the apoptosis in B16 cells accompanied with strong intracellular production of reactive species, subsequently imposing glutathione and thiol group depletion. Paradoxically, membrane lipids were excluded from the cascade of intracellular oxidation, according to malondialdehyde decrease. Although morphologically apoptosis was typical, externalization of phosphatidylserine (PS) as an early apoptotic event was not detected. Even their exposition is pivotal for apoptotic cell eradication, primary macrophages successfully eliminated PS-deficient tubugi-1 induced apoptotic cells. The tumor volume in animals exposed to the drug in therapeutic mode was reduced in comparison to control as well as to paclitaxel-treated animals. Importantly, macrophages isolated from tubugi-1 treated animals possessed conserved phagocytic activity and were functionally and phenotypically recognized as M1. The cytotoxic effect of tubugi-1 is accomplished through its ability to polarize the macrophages toward M1, probably by PS independent apoptotic cell engulfment. The unique potential of tubugi-1 to prime the innate immune response through the induction of a specific pattern of tumor cell apoptosis can be of extraordinary importance from fundamental and applicable aspects.
T2  - Experimental Cell Research
T1  - The synthetic tubulysin derivative, tubugi-1, improves the innate immune response by macrophage polarization in addition to its direct cytotoxic effects in a murine melanoma model
IS  - 2
VL  - 380
DO  - 10.1016/J.YEXCR.2019.04.028
SP  - 159
EP  - 170
ER  - 

@article{
author = "Drača, Dijana and Mijatović, Sanja and Krajnović, Tamara and Bogdanović Pristov, Jelena and Đukić, Tatjana and Kaluđerović, Goran N. and Wessjohann, Ludger A. and Maksimović-Ivanić, Danijela",
year = "2019",
abstract = "Synthetic tubugis are equally potent but more stable than their natural forms. Their anticancer potential was estimated on a solid melanoma in vitro and in vivo. Tubugi-1 induced the apoptosis in B16 cells accompanied with strong intracellular production of reactive species, subsequently imposing glutathione and thiol group depletion. Paradoxically, membrane lipids were excluded from the cascade of intracellular oxidation, according to malondialdehyde decrease. Although morphologically apoptosis was typical, externalization of phosphatidylserine (PS) as an early apoptotic event was not detected. Even their exposition is pivotal for apoptotic cell eradication, primary macrophages successfully eliminated PS-deficient tubugi-1 induced apoptotic cells. The tumor volume in animals exposed to the drug in therapeutic mode was reduced in comparison to control as well as to paclitaxel-treated animals. Importantly, macrophages isolated from tubugi-1 treated animals possessed conserved phagocytic activity and were functionally and phenotypically recognized as M1. The cytotoxic effect of tubugi-1 is accomplished through its ability to polarize the macrophages toward M1, probably by PS independent apoptotic cell engulfment. The unique potential of tubugi-1 to prime the innate immune response through the induction of a specific pattern of tumor cell apoptosis can be of extraordinary importance from fundamental and applicable aspects.",
journal = "Experimental Cell Research",
title = "The synthetic tubulysin derivative, tubugi-1, improves the innate immune response by macrophage polarization in addition to its direct cytotoxic effects in a murine melanoma model",
number = "2",
volume = "380",
doi = "10.1016/J.YEXCR.2019.04.028",
pages = "159-170"
}

Drača, D., Mijatović, S., Krajnović, T., Bogdanović Pristov, J., Đukić, T., Kaluđerović, G. N., Wessjohann, L. A.,& Maksimović-Ivanić, D.. (2019). The synthetic tubulysin derivative, tubugi-1, improves the innate immune response by macrophage polarization in addition to its direct cytotoxic effects in a murine melanoma model. in Experimental Cell Research, 380(2), 159-170.
https://doi.org/10.1016/J.YEXCR.2019.04.028

Drača D, Mijatović S, Krajnović T, Bogdanović Pristov J, Đukić T, Kaluđerović GN, Wessjohann LA, Maksimović-Ivanić D. The synthetic tubulysin derivative, tubugi-1, improves the innate immune response by macrophage polarization in addition to its direct cytotoxic effects in a murine melanoma model. in Experimental Cell Research. 2019;380(2):159-170.
doi:10.1016/J.YEXCR.2019.04.028 .

Drača, Dijana, Mijatović, Sanja, Krajnović, Tamara, Bogdanović Pristov, Jelena, Đukić, Tatjana, Kaluđerović, Goran N., Wessjohann, Ludger A., Maksimović-Ivanić, Danijela, "The synthetic tubulysin derivative, tubugi-1, improves the innate immune response by macrophage polarization in addition to its direct cytotoxic effects in a murine melanoma model" in Experimental Cell Research, 380, no. 2 (2019):159-170,
https://doi.org/10.1016/J.YEXCR.2019.04.028 . .

TY  - JOUR
AU  - Mijatović, Sanja
AU  - Bramanti, Alessia
AU  - Nicoletti, Ferdinando
AU  - Fagone, Paolo
AU  - Kaluđerović, Goran N.
AU  - Maksimović-Ivanić, Danijela
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S0734975018300739
UR  - http://www.ncbi.nlm.nih.gov/pubmed/29656090
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3045
AB  - Differentiation of cancer cells entails the reversion of phenotype from malignant to the original. The conversion to cell type characteristic for another tissue is named transdifferentiation. Differentiation/transdifferentiation of malignant cells in high grade tumor mass could serve as a nonaggressive approach that potentially limits tumor progression and augments chemosensitivity. While this therapeutic strategy is already being used for treatment of hematological cancers, its feasibility for solid malignancies is still debated. We will presently discuss the natural compounds that show these properties, with focus on anthraquinones from Aloe vera, Senna, Rheum sp. and hop derived prenylflavonoids.
T2  - Biotechnology Advances
T1  - Naturally occurring compounds in differentiation based therapy of cancer.
DO  - 10.1016/j.biotechadv.2018.04.001
ER  - 

@article{
author = "Mijatović, Sanja and Bramanti, Alessia and Nicoletti, Ferdinando and Fagone, Paolo and Kaluđerović, Goran N. and Maksimović-Ivanić, Danijela",
year = "2018",
abstract = "Differentiation of cancer cells entails the reversion of phenotype from malignant to the original. The conversion to cell type characteristic for another tissue is named transdifferentiation. Differentiation/transdifferentiation of malignant cells in high grade tumor mass could serve as a nonaggressive approach that potentially limits tumor progression and augments chemosensitivity. While this therapeutic strategy is already being used for treatment of hematological cancers, its feasibility for solid malignancies is still debated. We will presently discuss the natural compounds that show these properties, with focus on anthraquinones from Aloe vera, Senna, Rheum sp. and hop derived prenylflavonoids.",
journal = "Biotechnology Advances",
title = "Naturally occurring compounds in differentiation based therapy of cancer.",
doi = "10.1016/j.biotechadv.2018.04.001"
}

Mijatović, S., Bramanti, A., Nicoletti, F., Fagone, P., Kaluđerović, G. N.,& Maksimović-Ivanić, D.. (2018). Naturally occurring compounds in differentiation based therapy of cancer.. in Biotechnology Advances.
https://doi.org/10.1016/j.biotechadv.2018.04.001

Mijatović S, Bramanti A, Nicoletti F, Fagone P, Kaluđerović GN, Maksimović-Ivanić D. Naturally occurring compounds in differentiation based therapy of cancer.. in Biotechnology Advances. 2018;.
doi:10.1016/j.biotechadv.2018.04.001 .

Mijatović, Sanja, Bramanti, Alessia, Nicoletti, Ferdinando, Fagone, Paolo, Kaluđerović, Goran N., Maksimović-Ivanić, Danijela, "Naturally occurring compounds in differentiation based therapy of cancer." in Biotechnology Advances (2018),
https://doi.org/10.1016/j.biotechadv.2018.04.001 . .

TY  - JOUR
AU  - Krajnović, Tamara
AU  - Maksimović-Ivanić, Danijela
AU  - Mijatović, Sanja
AU  - Drača, Dijana
AU  - Wolf, Katharina
AU  - Edeler, David
AU  - Wessjohann, Ludger A
AU  - Kaluđerović, Goran N
PY  - 2018
UR  - http://www.mdpi.com/2079-4991/8/5/322
UR  - http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=PMC5977336
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3078
AB  - In this study mesoporous silica SBA-15 was evaluated as a vehicle for the transport of cytotoxic natural product emodin (EO). SBA-15 was loaded with different quantities of EO (SBA-15|EO1⁻SBA-15|EO5: 8⁻36%) and characterized by traditional methods. Several parameters (stabilities) and the in vitro behavior on tumor cell lines (melanoma A375, B16 and B16F10) were investigated. SBA-15 suppresses EO release in extremely acidic milieu, pointing out that EO will not be discharged in the stomach. Furthermore, SBA-15 protects EO from photodecomposition. In vitro studies showed a dose dependent decrease of cellular viability which is directly correlated with an increasing amount of EO in SBA-15 for up to 27% of EO, while a constant activity for 32% and 36% of EO in SBA-15 was observed. Additionally, SBA-15 loaded with EO (SBA-15|EO3) does not disturb viability of peritoneal macrophages. SBA-15|EO3 causes inhibition of tumor cell proliferation and triggers apoptosis, connected with caspase activation, upregulation of Bax, as well as Bcl-2 and Bim downregulation along with amplification of poly-(ADP-ribose)-polymerase (PARP) cleavage fragment. Thus, the mesoporous SBA-15 is a promising carrier of the water-insoluble drug emodin.
T2  - Nanomaterials (Basel, Switzerland)
T1  - Drug Delivery System for Emodin Based on Mesoporous Silica SBA-15.
IS  - 5
VL  - 8
DO  - 10.3390/nano8050322
SP  - 322
ER  - 

@article{
author = "Krajnović, Tamara and Maksimović-Ivanić, Danijela and Mijatović, Sanja and Drača, Dijana and Wolf, Katharina and Edeler, David and Wessjohann, Ludger A and Kaluđerović, Goran N",
year = "2018",
abstract = "In this study mesoporous silica SBA-15 was evaluated as a vehicle for the transport of cytotoxic natural product emodin (EO). SBA-15 was loaded with different quantities of EO (SBA-15|EO1⁻SBA-15|EO5: 8⁻36%) and characterized by traditional methods. Several parameters (stabilities) and the in vitro behavior on tumor cell lines (melanoma A375, B16 and B16F10) were investigated. SBA-15 suppresses EO release in extremely acidic milieu, pointing out that EO will not be discharged in the stomach. Furthermore, SBA-15 protects EO from photodecomposition. In vitro studies showed a dose dependent decrease of cellular viability which is directly correlated with an increasing amount of EO in SBA-15 for up to 27% of EO, while a constant activity for 32% and 36% of EO in SBA-15 was observed. Additionally, SBA-15 loaded with EO (SBA-15|EO3) does not disturb viability of peritoneal macrophages. SBA-15|EO3 causes inhibition of tumor cell proliferation and triggers apoptosis, connected with caspase activation, upregulation of Bax, as well as Bcl-2 and Bim downregulation along with amplification of poly-(ADP-ribose)-polymerase (PARP) cleavage fragment. Thus, the mesoporous SBA-15 is a promising carrier of the water-insoluble drug emodin.",
journal = "Nanomaterials (Basel, Switzerland)",
title = "Drug Delivery System for Emodin Based on Mesoporous Silica SBA-15.",
number = "5",
volume = "8",
doi = "10.3390/nano8050322",
pages = "322"
}

Krajnović, T., Maksimović-Ivanić, D., Mijatović, S., Drača, D., Wolf, K., Edeler, D., Wessjohann, L. A.,& Kaluđerović, G. N.. (2018). Drug Delivery System for Emodin Based on Mesoporous Silica SBA-15.. in Nanomaterials (Basel, Switzerland), 8(5), 322.
https://doi.org/10.3390/nano8050322

Krajnović T, Maksimović-Ivanić D, Mijatović S, Drača D, Wolf K, Edeler D, Wessjohann LA, Kaluđerović GN. Drug Delivery System for Emodin Based on Mesoporous Silica SBA-15.. in Nanomaterials (Basel, Switzerland). 2018;8(5):322.
doi:10.3390/nano8050322 .

Krajnović, Tamara, Maksimović-Ivanić, Danijela, Mijatović, Sanja, Drača, Dijana, Wolf, Katharina, Edeler, David, Wessjohann, Ludger A, Kaluđerović, Goran N, "Drug Delivery System for Emodin Based on Mesoporous Silica SBA-15." in Nanomaterials (Basel, Switzerland), 8, no. 5 (2018):322,
https://doi.org/10.3390/nano8050322 . .

TY  - JOUR
AU  - Ludwig, Gerd
AU  - Mojić, Marija
AU  - Bulatović, Mirna
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Steinborn, Dirk
AU  - Kaluđerović, Goran N
PY  - 2016
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3827
AB  - In vitro studies with the ruthenium(II) and analogous iridium(III) complexes [Ru(η6- p-cymene)Cl2{Ph2PCH2CH2CH2S(O)xPh-κP}], [Ru(η6-p-cymene)Cl{Ph2PCH2CH2CH2S(O)xPh- κP,κS}][PF6] (1-4), [Ir(η5-C5Me5)Cl2{Ph2PCH2CH2CH2S(O)xPh-κP}] and [Ir(η5-C5Me5)Cl{Ph2 PCH2CH2CH2S(O)xPh-κP,κS}][PF6] (5-8; x = 0, 1) revealed the high selectivity toward the 8505C, A253, MCF-7, SW480 and 518A2 cancer cell lines. Thus, the cationic ruthenium complex 4 proved to be the most selective one. In case of the neutral and cationic ruthenium complexes 1-4 the caspase-dependent apoptotic cell death was proven as the main cause of the drug's tumoricidal action on 8505C cell line.
PB  - Sharjah: Bentham Science Publishers
T2  - Anti-Cancer Agents in Medicinal Chemistry
T1  - Biological Potential of Halfsandwich Ruthenium(II) and Iridium (III) Complexes
IS  - 11
VL  - 16
DO  - 10.2174/1871520615666151029100749
SP  - 1455
EP  - 1460
ER  - 

@article{
author = "Ludwig, Gerd and Mojić, Marija and Bulatović, Mirna and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Steinborn, Dirk and Kaluđerović, Goran N",
year = "2016",
abstract = "In vitro studies with the ruthenium(II) and analogous iridium(III) complexes [Ru(η6- p-cymene)Cl2{Ph2PCH2CH2CH2S(O)xPh-κP}], [Ru(η6-p-cymene)Cl{Ph2PCH2CH2CH2S(O)xPh- κP,κS}][PF6] (1-4), [Ir(η5-C5Me5)Cl2{Ph2PCH2CH2CH2S(O)xPh-κP}] and [Ir(η5-C5Me5)Cl{Ph2 PCH2CH2CH2S(O)xPh-κP,κS}][PF6] (5-8; x = 0, 1) revealed the high selectivity toward the 8505C, A253, MCF-7, SW480 and 518A2 cancer cell lines. Thus, the cationic ruthenium complex 4 proved to be the most selective one. In case of the neutral and cationic ruthenium complexes 1-4 the caspase-dependent apoptotic cell death was proven as the main cause of the drug's tumoricidal action on 8505C cell line.",
publisher = "Sharjah: Bentham Science Publishers",
journal = "Anti-Cancer Agents in Medicinal Chemistry",
title = "Biological Potential of Halfsandwich Ruthenium(II) and Iridium (III) Complexes",
number = "11",
volume = "16",
doi = "10.2174/1871520615666151029100749",
pages = "1455-1460"
}

Ludwig, G., Mojić, M., Bulatović, M., Mijatović, S., Maksimović-Ivanić, D., Steinborn, D.,& Kaluđerović, G. N.. (2016). Biological Potential of Halfsandwich Ruthenium(II) and Iridium (III) Complexes. in Anti-Cancer Agents in Medicinal Chemistry
Sharjah: Bentham Science Publishers., 16(11), 1455-1460.
https://doi.org/10.2174/1871520615666151029100749

Ludwig G, Mojić M, Bulatović M, Mijatović S, Maksimović-Ivanić D, Steinborn D, Kaluđerović GN. Biological Potential of Halfsandwich Ruthenium(II) and Iridium (III) Complexes. in Anti-Cancer Agents in Medicinal Chemistry. 2016;16(11):1455-1460.
doi:10.2174/1871520615666151029100749 .

Ludwig, Gerd, Mojić, Marija, Bulatović, Mirna, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Steinborn, Dirk, Kaluđerović, Goran N, "Biological Potential of Halfsandwich Ruthenium(II) and Iridium (III) Complexes" in Anti-Cancer Agents in Medicinal Chemistry, 16, no. 11 (2016):1455-1460,
https://doi.org/10.2174/1871520615666151029100749 . .

TY  - JOUR
AU  - Krajnović, Tamara
AU  - Kaluđerović, Goran N
AU  - Wessjohann, Ludger A
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
PY  - 2016
UR  - http://linkinghub.elsevier.com/retrieve/pii/S1043661816000189
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3306
AB  - Isoxanthohumol (IXN), a prenylated flavonoid from hops, exhibits diverse biological activities, e.g. antitumor, antiinflammatory, antioxidant and antiangiogenic. In this study, the effect of IXN is evaluated on two melanoma cell lines with dissimilar molecular background, B16 and A375. The treatment of both cell lines with IXN resulted in dose-dependent decrease of cell viability. Abolished viability was in correlation with changed morphology and loss of dividing potential indicating phenotypical alteration of both tested cell lines. While modified B16 cells underwent the process of non-classic differentiation followed by tyrosinase activity without enhancement of melanin content, inhibition of Notch 1, β-catenin and Oct-3/4 was observed in A375 cells indicating loss of their pluripotent characteristics. In parallel with this, distinct subpopulations in both cell cultures entered the process of programmed cell death-apoptosis in a caspase independent manner. The described changes in cultures upon exposure to IXN could be connected with the suppression of reactive oxygen (ROS) and nitrogen species (RNS) induced by the drug. Despite the differences in which IXN promoted modifications in the upper part of the PI3K/Akt and MEK-ERK signaling pathways between B16 and A375 cells, p70S6K and its target S6 protein in both types of melanoma cells, after transient activation, became inhibited. In addition to direct input of IXN on cell viability, this study for the first time shows that IXN strongly sensitizes melanoma cells to the treatment with paclitaxel in vivo, in concordance with data obtained in vitro on B16 cells as well as their highly invasive F10 subclone.
PB  - Academic Press
T2  - Pharmacological Research
T1  - Versatile antitumor potential of isoxanthohumol: Enhancement of paclitaxel activity in vivo
VL  - 105
DO  - 10.1016/j.phrs.2016.01.011
SP  - 62
EP  - 73
ER  - 

@article{
author = "Krajnović, Tamara and Kaluđerović, Goran N and Wessjohann, Ludger A and Mijatović, Sanja and Maksimović-Ivanić, Danijela",
year = "2016",
abstract = "Isoxanthohumol (IXN), a prenylated flavonoid from hops, exhibits diverse biological activities, e.g. antitumor, antiinflammatory, antioxidant and antiangiogenic. In this study, the effect of IXN is evaluated on two melanoma cell lines with dissimilar molecular background, B16 and A375. The treatment of both cell lines with IXN resulted in dose-dependent decrease of cell viability. Abolished viability was in correlation with changed morphology and loss of dividing potential indicating phenotypical alteration of both tested cell lines. While modified B16 cells underwent the process of non-classic differentiation followed by tyrosinase activity without enhancement of melanin content, inhibition of Notch 1, β-catenin and Oct-3/4 was observed in A375 cells indicating loss of their pluripotent characteristics. In parallel with this, distinct subpopulations in both cell cultures entered the process of programmed cell death-apoptosis in a caspase independent manner. The described changes in cultures upon exposure to IXN could be connected with the suppression of reactive oxygen (ROS) and nitrogen species (RNS) induced by the drug. Despite the differences in which IXN promoted modifications in the upper part of the PI3K/Akt and MEK-ERK signaling pathways between B16 and A375 cells, p70S6K and its target S6 protein in both types of melanoma cells, after transient activation, became inhibited. In addition to direct input of IXN on cell viability, this study for the first time shows that IXN strongly sensitizes melanoma cells to the treatment with paclitaxel in vivo, in concordance with data obtained in vitro on B16 cells as well as their highly invasive F10 subclone.",
publisher = "Academic Press",
journal = "Pharmacological Research",
title = "Versatile antitumor potential of isoxanthohumol: Enhancement of paclitaxel activity in vivo",
volume = "105",
doi = "10.1016/j.phrs.2016.01.011",
pages = "62-73"
}

Krajnović, T., Kaluđerović, G. N., Wessjohann, L. A., Mijatović, S.,& Maksimović-Ivanić, D.. (2016). Versatile antitumor potential of isoxanthohumol: Enhancement of paclitaxel activity in vivo. in Pharmacological Research
Academic Press., 105, 62-73.
https://doi.org/10.1016/j.phrs.2016.01.011

Krajnović T, Kaluđerović GN, Wessjohann LA, Mijatović S, Maksimović-Ivanić D. Versatile antitumor potential of isoxanthohumol: Enhancement of paclitaxel activity in vivo. in Pharmacological Research. 2016;105:62-73.
doi:10.1016/j.phrs.2016.01.011 .

Krajnović, Tamara, Kaluđerović, Goran N, Wessjohann, Ludger A, Mijatović, Sanja, Maksimović-Ivanić, Danijela, "Versatile antitumor potential of isoxanthohumol: Enhancement of paclitaxel activity in vivo" in Pharmacological Research, 105 (2016):62-73,
https://doi.org/10.1016/j.phrs.2016.01.011 . .