TY  - JOUR
AU  - Braun, Sebastian
AU  - Paskaš, Svetlana
AU  - Laube, Markus
AU  - George, Sven
AU  - Hofmann, Bettina
AU  - Lönnecke, Peter
AU  - Steinhilber, Dieter
AU  - Pietzsch, Jens
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Hey-Hawkins, Evamarie
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/6431
AB  - The presence of inflammatory mediators in the tumor microenvironment,
such as cytokines, growth factors or eicosanoids,
indicate cancer-related inflammatory processes. Targeting these
inflammatory mediators and related signal pathways may offer
a rational strategy for the treatment of cancer. This study
focuses on the incorporation of metabolically stable, sterically
demanding, and hydrophobic dicarba-closo-dodecaboranes
(carboranes) into dual cyclooxygenase-2 (COX-2)/5-lipoxygenase
(5-LO) inhibitors that are key enzymes in the biosynthesis
of eicosanoids. The di-tert-butylphenol derivative tebufelone
represents a selective dual COX-2/5-LO inhibitor. The incorporation
of meta- or para-carborane into the tebufelone scaffold
resulted in eight carborane-based tebufelone analogs that
show no COX inhibition but 5-LO inhibitory activity in vitro. Cell
viability studies on HT29 colon adenocarcinoma cells revealed
that the observed antiproliferative effect of the para-carborane
analogs of tebufelone is enhanced by structural modifications
that include chain elongation in combination with introduction
of a methylene spacer resulting in higher anticancer activity
compared to tebufelone. Hence, this strategy proved to be a
promising approach to design potent 5-LO inhibitors with
potential application as cytostatic agents.
PB  - Wiley-VCH GmbH
T2  - ChemMedChem
T1  - Carborane-Based Tebufelone Analogs and Their Biological Evaluation In Vitro
IS  - 14
VL  - 18
DO  - 10.1002/cmdc.202300206
SP  - e202300206
ER  - 

@article{
author = "Braun, Sebastian and Paskaš, Svetlana and Laube, Markus and George, Sven and Hofmann, Bettina and Lönnecke, Peter and Steinhilber, Dieter and Pietzsch, Jens and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Hey-Hawkins, Evamarie",
year = "2023",
abstract = "The presence of inflammatory mediators in the tumor microenvironment,
such as cytokines, growth factors or eicosanoids,
indicate cancer-related inflammatory processes. Targeting these
inflammatory mediators and related signal pathways may offer
a rational strategy for the treatment of cancer. This study
focuses on the incorporation of metabolically stable, sterically
demanding, and hydrophobic dicarba-closo-dodecaboranes
(carboranes) into dual cyclooxygenase-2 (COX-2)/5-lipoxygenase
(5-LO) inhibitors that are key enzymes in the biosynthesis
of eicosanoids. The di-tert-butylphenol derivative tebufelone
represents a selective dual COX-2/5-LO inhibitor. The incorporation
of meta- or para-carborane into the tebufelone scaffold
resulted in eight carborane-based tebufelone analogs that
show no COX inhibition but 5-LO inhibitory activity in vitro. Cell
viability studies on HT29 colon adenocarcinoma cells revealed
that the observed antiproliferative effect of the para-carborane
analogs of tebufelone is enhanced by structural modifications
that include chain elongation in combination with introduction
of a methylene spacer resulting in higher anticancer activity
compared to tebufelone. Hence, this strategy proved to be a
promising approach to design potent 5-LO inhibitors with
potential application as cytostatic agents.",
publisher = "Wiley-VCH GmbH",
journal = "ChemMedChem",
title = "Carborane-Based Tebufelone Analogs and Their Biological Evaluation In Vitro",
number = "14",
volume = "18",
doi = "10.1002/cmdc.202300206",
pages = "e202300206"
}

Braun, S., Paskaš, S., Laube, M., George, S., Hofmann, B., Lönnecke, P., Steinhilber, D., Pietzsch, J., Mijatović, S., Maksimović-Ivanić, D.,& Hey-Hawkins, E.. (2023). Carborane-Based Tebufelone Analogs and Their Biological Evaluation In Vitro. in ChemMedChem
Wiley-VCH GmbH., 18(14), e202300206.
https://doi.org/10.1002/cmdc.202300206

Braun S, Paskaš S, Laube M, George S, Hofmann B, Lönnecke P, Steinhilber D, Pietzsch J, Mijatović S, Maksimović-Ivanić D, Hey-Hawkins E. Carborane-Based Tebufelone Analogs and Their Biological Evaluation In Vitro. in ChemMedChem. 2023;18(14):e202300206.
doi:10.1002/cmdc.202300206 .

Braun, Sebastian, Paskaš, Svetlana, Laube, Markus, George, Sven, Hofmann, Bettina, Lönnecke, Peter, Steinhilber, Dieter, Pietzsch, Jens, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Hey-Hawkins, Evamarie, "Carborane-Based Tebufelone Analogs and Their Biological Evaluation In Vitro" in ChemMedChem, 18, no. 14 (2023):e202300206,
https://doi.org/10.1002/cmdc.202300206 . .

TY  - JOUR
AU  - Braun, Sebastian
AU  - Jelača, Sanja
AU  - Laube, Marcus
AU  - George, Sven
AU  - Hofmann, Bettina
AU  - Lönnecke, Peter
AU  - Steinhilber, Dieter
AU  - Pietzsch, Jens
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Hey-Hawkins, Evamarie
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5823
AB  - Targeting inflammatory mediators and related signaling pathways may offer a rational strategy for the treatment of cancer. The incorporation of metabolically stable, sterically demanding, and hydrophobic carboranes in dual cycloxygenase-2 (COX-2)/5-lipoxygenase (5-LO) inhibitors that are key enzymes in the biosynthesis of eicosanoids is a promising approach. The di-tert-butylphenol derivatives R-830, S-2474, KME-4, and E-5110 represent potent dual COX-2/5-LO inhibitors. The incorporation of p-carborane and further substitution of the p-position resulted in four carborane-based di-tert-butylphenol analogs that showed no or weak COX inhibition but high 5-LO inhibitory activities in vitro. Cell viability studies on five human cancer cell lines revealed that the p-carborane analogs R-830-Cb, S-2474-Cb, KME-4-Cb, and E-5110-Cb exhibited lower anticancer activity compared to the related di-tert-butylphenols. Interestingly, R-830-Cb did not affect the viability of primary cells and suppressed HCT116 cell proliferation more potently than its carbon-based R-830 counterpart. Considering all the advantages of boron cluster incorporation for enhancement of drug biostability, selectivity, and availability of drugs, R-830-Cb can be tested in further mechanistic and in vivo studies.
PB  - Basel: MDPI
T2  - Molecules
T1  - Synthesis and In Vitro Biological Evaluation of p-Carborane-Based Di-tert-butylphenol Analogs
IS  - 11
VL  - 28
DO  - 10.3390/molecules28114547
SP  - 4547
ER  - 

@article{
author = "Braun, Sebastian and Jelača, Sanja and Laube, Marcus and George, Sven and Hofmann, Bettina and Lönnecke, Peter and Steinhilber, Dieter and Pietzsch, Jens and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Hey-Hawkins, Evamarie",
year = "2023",
abstract = "Targeting inflammatory mediators and related signaling pathways may offer a rational strategy for the treatment of cancer. The incorporation of metabolically stable, sterically demanding, and hydrophobic carboranes in dual cycloxygenase-2 (COX-2)/5-lipoxygenase (5-LO) inhibitors that are key enzymes in the biosynthesis of eicosanoids is a promising approach. The di-tert-butylphenol derivatives R-830, S-2474, KME-4, and E-5110 represent potent dual COX-2/5-LO inhibitors. The incorporation of p-carborane and further substitution of the p-position resulted in four carborane-based di-tert-butylphenol analogs that showed no or weak COX inhibition but high 5-LO inhibitory activities in vitro. Cell viability studies on five human cancer cell lines revealed that the p-carborane analogs R-830-Cb, S-2474-Cb, KME-4-Cb, and E-5110-Cb exhibited lower anticancer activity compared to the related di-tert-butylphenols. Interestingly, R-830-Cb did not affect the viability of primary cells and suppressed HCT116 cell proliferation more potently than its carbon-based R-830 counterpart. Considering all the advantages of boron cluster incorporation for enhancement of drug biostability, selectivity, and availability of drugs, R-830-Cb can be tested in further mechanistic and in vivo studies.",
publisher = "Basel: MDPI",
journal = "Molecules",
title = "Synthesis and In Vitro Biological Evaluation of p-Carborane-Based Di-tert-butylphenol Analogs",
number = "11",
volume = "28",
doi = "10.3390/molecules28114547",
pages = "4547"
}

Braun, S., Jelača, S., Laube, M., George, S., Hofmann, B., Lönnecke, P., Steinhilber, D., Pietzsch, J., Mijatović, S., Maksimović-Ivanić, D.,& Hey-Hawkins, E.. (2023). Synthesis and In Vitro Biological Evaluation of p-Carborane-Based Di-tert-butylphenol Analogs. in Molecules
Basel: MDPI., 28(11), 4547.
https://doi.org/10.3390/molecules28114547

Braun S, Jelača S, Laube M, George S, Hofmann B, Lönnecke P, Steinhilber D, Pietzsch J, Mijatović S, Maksimović-Ivanić D, Hey-Hawkins E. Synthesis and In Vitro Biological Evaluation of p-Carborane-Based Di-tert-butylphenol Analogs. in Molecules. 2023;28(11):4547.
doi:10.3390/molecules28114547 .

Braun, Sebastian, Jelača, Sanja, Laube, Marcus, George, Sven, Hofmann, Bettina, Lönnecke, Peter, Steinhilber, Dieter, Pietzsch, Jens, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Hey-Hawkins, Evamarie, "Synthesis and In Vitro Biological Evaluation of p-Carborane-Based Di-tert-butylphenol Analogs" in Molecules, 28, no. 11 (2023):4547,
https://doi.org/10.3390/molecules28114547 . .

TY  - JOUR
AU  - Useini, Liridona
AU  - Komazec, Teodora
AU  - Laube, Markus
AU  - Lönnecke, Peter
AU  - Schädlich, Jonas
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Pietzsch, Jens
AU  - Hey-Hawkins, Evamarie
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5826
AB  - Nonsteroidal anti-inflammatory drugs (NSAIDs) are the most widely used
therapeutics against pain, fever, and inflammation; additionally, antitumor
properties are reported. NSAIDs reduce the synthesis of prostaglandins by
inhibiting the cyclooxygenase (COX) isoforms COX-1 and COX-2. As
nonselective inhibition is associated with off-target effects, strategies to
achieve selectivity for the clinically preferred isoform COX-2 are of high
interest. The modification of NSAIDs using carborane clusters as phenyl
mimetics is reported to alter the selectivity profile through size exclusion.
Inspired by these findings, isonimesulide and its carborane derivatives are
prepared. The biological screening shows that the carborane containing
compounds exhibit a stronger antitumor potential compared to nimesulide
and isonimesulide. Furthermore, the replacement of the phenyl ring of
isonimesulide with a carborane moiety resulted in a shift of the COX activity
from nonactive to COX-active compounds.
PB  - Hoboken: Wiley
T2  - Advanced Therapeutics
T1  - Isonimesulide and Its Carborane Analogues as Isoform-Selective COX Inhibitors and Antitumor Agents
DO  - 10.1002/adtp.202300117
SP  - 2300117
ER  - 

@article{
author = "Useini, Liridona and Komazec, Teodora and Laube, Markus and Lönnecke, Peter and Schädlich, Jonas and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Pietzsch, Jens and Hey-Hawkins, Evamarie",
year = "2023",
abstract = "Nonsteroidal anti-inflammatory drugs (NSAIDs) are the most widely used
therapeutics against pain, fever, and inflammation; additionally, antitumor
properties are reported. NSAIDs reduce the synthesis of prostaglandins by
inhibiting the cyclooxygenase (COX) isoforms COX-1 and COX-2. As
nonselective inhibition is associated with off-target effects, strategies to
achieve selectivity for the clinically preferred isoform COX-2 are of high
interest. The modification of NSAIDs using carborane clusters as phenyl
mimetics is reported to alter the selectivity profile through size exclusion.
Inspired by these findings, isonimesulide and its carborane derivatives are
prepared. The biological screening shows that the carborane containing
compounds exhibit a stronger antitumor potential compared to nimesulide
and isonimesulide. Furthermore, the replacement of the phenyl ring of
isonimesulide with a carborane moiety resulted in a shift of the COX activity
from nonactive to COX-active compounds.",
publisher = "Hoboken: Wiley",
journal = "Advanced Therapeutics",
title = "Isonimesulide and Its Carborane Analogues as Isoform-Selective COX Inhibitors and Antitumor Agents",
doi = "10.1002/adtp.202300117",
pages = "2300117"
}

Useini, L., Komazec, T., Laube, M., Lönnecke, P., Schädlich, J., Mijatović, S., Maksimović-Ivanić, D., Pietzsch, J.,& Hey-Hawkins, E.. (2023). Isonimesulide and Its Carborane Analogues as Isoform-Selective COX Inhibitors and Antitumor Agents. in Advanced Therapeutics
Hoboken: Wiley., 2300117.
https://doi.org/10.1002/adtp.202300117

Useini L, Komazec T, Laube M, Lönnecke P, Schädlich J, Mijatović S, Maksimović-Ivanić D, Pietzsch J, Hey-Hawkins E. Isonimesulide and Its Carborane Analogues as Isoform-Selective COX Inhibitors and Antitumor Agents. in Advanced Therapeutics. 2023;:2300117.
doi:10.1002/adtp.202300117 .

Useini, Liridona, Komazec, Teodora, Laube, Markus, Lönnecke, Peter, Schädlich, Jonas, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Pietzsch, Jens, Hey-Hawkins, Evamarie, "Isonimesulide and Its Carborane Analogues as Isoform-Selective COX Inhibitors and Antitumor Agents" in Advanced Therapeutics (2023):2300117,
https://doi.org/10.1002/adtp.202300117 . .

TY  - JOUR
AU  - Useini, Liridona
AU  - Mojić, Marija
AU  - Laube, Markus
AU  - Lönnecke, Peter
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Pietzsch, Jens
AU  - Hey‐Hawkins, Evamarie
PY  - 2023
UR  - https://onlinelibrary.wiley.com/doi/10.1002/cmdc.202200583
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5432
AB  - Fenoprofen is a widely used nonsteroidal anti-inflammatory drug (NSAID) against rheumatoid arthritis, degenerative joint disease, ankylosing spondylitis and gout. Like other NSAIDs, fenoprofen inhibits the synthesis of prostaglandins by blocking both cyclooxygenase (COX) isoforms, COX-1 the “house-keeping” enzyme and COX-2 the induced isoform from pathological stimuli. Unselective inhibition of both COX isoforms results in many side effects, but off-target effects have also been reported. The steric modifications of the drugs could afford the desired COX-2 selectivity. Furthermore, NSAIDs have shown promising cytotoxic properties. The structural modification of fenoprofen using bulky dicarba-closo-dodecaborane(12) (carborane) clusters and the biological evaluation of the carborane analogues for COX inhibition and antitumor potential showed that the carborane analogues exhibit stronger antitumor potential compared to their respective aryl-based compounds.
PB  - John Wiley and Sons Ltd
T2  - ChemMedChem
T1  - Carborane Analogues of Fenoprofen Exhibit Improved Antitumor Activity
IS  - 5
VL  - 18
DO  - 10.1002/cmdc.202200583
SP  - e202200583
ER  - 

@article{
author = "Useini, Liridona and Mojić, Marija and Laube, Markus and Lönnecke, Peter and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Pietzsch, Jens and Hey‐Hawkins, Evamarie",
year = "2023",
abstract = "Fenoprofen is a widely used nonsteroidal anti-inflammatory drug (NSAID) against rheumatoid arthritis, degenerative joint disease, ankylosing spondylitis and gout. Like other NSAIDs, fenoprofen inhibits the synthesis of prostaglandins by blocking both cyclooxygenase (COX) isoforms, COX-1 the “house-keeping” enzyme and COX-2 the induced isoform from pathological stimuli. Unselective inhibition of both COX isoforms results in many side effects, but off-target effects have also been reported. The steric modifications of the drugs could afford the desired COX-2 selectivity. Furthermore, NSAIDs have shown promising cytotoxic properties. The structural modification of fenoprofen using bulky dicarba-closo-dodecaborane(12) (carborane) clusters and the biological evaluation of the carborane analogues for COX inhibition and antitumor potential showed that the carborane analogues exhibit stronger antitumor potential compared to their respective aryl-based compounds.",
publisher = "John Wiley and Sons Ltd",
journal = "ChemMedChem",
title = "Carborane Analogues of Fenoprofen Exhibit Improved Antitumor Activity",
number = "5",
volume = "18",
doi = "10.1002/cmdc.202200583",
pages = "e202200583"
}

Useini, L., Mojić, M., Laube, M., Lönnecke, P., Mijatović, S., Maksimović-Ivanić, D., Pietzsch, J.,& Hey‐Hawkins, E.. (2023). Carborane Analogues of Fenoprofen Exhibit Improved Antitumor Activity. in ChemMedChem
John Wiley and Sons Ltd., 18(5), e202200583.
https://doi.org/10.1002/cmdc.202200583

Useini L, Mojić M, Laube M, Lönnecke P, Mijatović S, Maksimović-Ivanić D, Pietzsch J, Hey‐Hawkins E. Carborane Analogues of Fenoprofen Exhibit Improved Antitumor Activity. in ChemMedChem. 2023;18(5):e202200583.
doi:10.1002/cmdc.202200583 .

Useini, Liridona, Mojić, Marija, Laube, Markus, Lönnecke, Peter, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Pietzsch, Jens, Hey‐Hawkins, Evamarie, "Carborane Analogues of Fenoprofen Exhibit Improved Antitumor Activity" in ChemMedChem, 18, no. 5 (2023):e202200583,
https://doi.org/10.1002/cmdc.202200583 . .

TY  - JOUR
AU  - Braun, Sebastian
AU  - Paskaš, Svetlana
AU  - Laube, Markus
AU  - George, Sven
AU  - Hofmann, Bettina
AU  - Lönnecke, Peter
AU  - Steinhilber, Dieter
AU  - Pietzsch, Jens
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Hey‐Hawkins, Evamarie
PY  - 2023
UR  - https://onlinelibrary.wiley.com/doi/10.1002/adtp.202200252
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5384
AB  - The selective inhibition of enzymes that catalyze the conversion of arachidonic acid to inflammatory eicosanoids represents a promising approach for cancer therapy. This study, therefore, focuses on the incorporation of metabolically stable, sterically demanding, and hydrophobic carboranes into existing dual cycloxygenase-2 (COX-2)/5-lipoxygenase (5-LO) inhibitors that are key enzymes in the biosynthesis of eicosanoids. Here, the first carborane-containing dual COX-2/5-LO inhibitors derived from RWJ-63556 are presented. The replacement of the fluorophenyl moiety by meta- or para-carborane resulted in five carborane-containing derivatives 3, 6, 9, 13, and 17 that show high inhibitory activities toward COX-2 and 5-LO in vitro. Cell viability studies on the A375 melanoma cell line revealed that meta-carborane derivative 3 shows higher anticancer activity compared to RWJ-63556 based on accumulation of lipid droplets in the cells due to blockage of the COX-2 and 5-LO pathways, indicating a promising approach for the design of potent dual COX-2/5-LO inhibitors.
T2  - Advanced Therapeutics
T1  - In Vitro Cytostatic Effect on Tumor Cells by Carborane‐Based Dual Cyclooxygenase‐2 and 5‐Lipoxygenase Inhibitors
DO  - 10.1002/adtp.202200252
SP  - 2200252
ER  - 

@article{
author = "Braun, Sebastian and Paskaš, Svetlana and Laube, Markus and George, Sven and Hofmann, Bettina and Lönnecke, Peter and Steinhilber, Dieter and Pietzsch, Jens and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Hey‐Hawkins, Evamarie",
year = "2023",
abstract = "The selective inhibition of enzymes that catalyze the conversion of arachidonic acid to inflammatory eicosanoids represents a promising approach for cancer therapy. This study, therefore, focuses on the incorporation of metabolically stable, sterically demanding, and hydrophobic carboranes into existing dual cycloxygenase-2 (COX-2)/5-lipoxygenase (5-LO) inhibitors that are key enzymes in the biosynthesis of eicosanoids. Here, the first carborane-containing dual COX-2/5-LO inhibitors derived from RWJ-63556 are presented. The replacement of the fluorophenyl moiety by meta- or para-carborane resulted in five carborane-containing derivatives 3, 6, 9, 13, and 17 that show high inhibitory activities toward COX-2 and 5-LO in vitro. Cell viability studies on the A375 melanoma cell line revealed that meta-carborane derivative 3 shows higher anticancer activity compared to RWJ-63556 based on accumulation of lipid droplets in the cells due to blockage of the COX-2 and 5-LO pathways, indicating a promising approach for the design of potent dual COX-2/5-LO inhibitors.",
journal = "Advanced Therapeutics",
title = "In Vitro Cytostatic Effect on Tumor Cells by Carborane‐Based Dual Cyclooxygenase‐2 and 5‐Lipoxygenase Inhibitors",
doi = "10.1002/adtp.202200252",
pages = "2200252"
}

Braun, S., Paskaš, S., Laube, M., George, S., Hofmann, B., Lönnecke, P., Steinhilber, D., Pietzsch, J., Mijatović, S., Maksimović-Ivanić, D.,& Hey‐Hawkins, E.. (2023). In Vitro Cytostatic Effect on Tumor Cells by Carborane‐Based Dual Cyclooxygenase‐2 and 5‐Lipoxygenase Inhibitors. in Advanced Therapeutics, 2200252.
https://doi.org/10.1002/adtp.202200252

Braun S, Paskaš S, Laube M, George S, Hofmann B, Lönnecke P, Steinhilber D, Pietzsch J, Mijatović S, Maksimović-Ivanić D, Hey‐Hawkins E. In Vitro Cytostatic Effect on Tumor Cells by Carborane‐Based Dual Cyclooxygenase‐2 and 5‐Lipoxygenase Inhibitors. in Advanced Therapeutics. 2023;:2200252.
doi:10.1002/adtp.202200252 .

Braun, Sebastian, Paskaš, Svetlana, Laube, Markus, George, Sven, Hofmann, Bettina, Lönnecke, Peter, Steinhilber, Dieter, Pietzsch, Jens, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Hey‐Hawkins, Evamarie, "In Vitro Cytostatic Effect on Tumor Cells by Carborane‐Based Dual Cyclooxygenase‐2 and 5‐Lipoxygenase Inhibitors" in Advanced Therapeutics (2023):2200252,
https://doi.org/10.1002/adtp.202200252 . .

TY  - JOUR
AU  - Useini, Liridona
AU  - Mojić, Marija
AU  - Laube, Markus
AU  - Lönnecke, Peter
AU  - Dahme, Jonas
AU  - Sárosi, Menyhárt B.
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Pietzsch, Jens
AU  - Hey-Hawkins, Evamarie
PY  - 2022
UR  - https://pubs.acs.org/doi/10.1021/acsomega.2c01523
UR  - http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=PMC9301635
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5075
AB  - Mefenamic acid represents a widely used nonsteroidal anti-inflammatory drug (NSAID) to treat the pain of postoperative surgery and heavy menstrual bleeding. Like other NSAIDs, mefenamic acid inhibits the synthesis of prostaglandins by nonselectively blocking cyclooxygenase (COX) isoforms COX-1 and COX-2. For the improved selectivity of the drug and, therefore, reduced related side effects, the carborane analogues of mefenamic acid were evaluated. The ortho-, meta-, and para-carborane derivatives were synthesized in three steps: halogenation of the respective cluster, followed by a Pd-catalyzed B-N coupling and hydrolysis of the nitrile derivatives under acidic conditions. The COX inhibitory activity and cytotoxicity for different cancer cell lines revealed that the carborane analogues have stronger antitumor potential compared to their parent organic compound.
PB  - Washington: American Chemical Society
T2  - ACS Omega
T1  - Carboranyl Analogues of Mefenamic Acid and Their Biological Evaluation.
IS  - 28
VL  - 7
DO  - 10.1021/acsomega.2c01523
SP  - 24282
EP  - 24291
ER  - 

@article{
author = "Useini, Liridona and Mojić, Marija and Laube, Markus and Lönnecke, Peter and Dahme, Jonas and Sárosi, Menyhárt B. and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Pietzsch, Jens and Hey-Hawkins, Evamarie",
year = "2022",
abstract = "Mefenamic acid represents a widely used nonsteroidal anti-inflammatory drug (NSAID) to treat the pain of postoperative surgery and heavy menstrual bleeding. Like other NSAIDs, mefenamic acid inhibits the synthesis of prostaglandins by nonselectively blocking cyclooxygenase (COX) isoforms COX-1 and COX-2. For the improved selectivity of the drug and, therefore, reduced related side effects, the carborane analogues of mefenamic acid were evaluated. The ortho-, meta-, and para-carborane derivatives were synthesized in three steps: halogenation of the respective cluster, followed by a Pd-catalyzed B-N coupling and hydrolysis of the nitrile derivatives under acidic conditions. The COX inhibitory activity and cytotoxicity for different cancer cell lines revealed that the carborane analogues have stronger antitumor potential compared to their parent organic compound.",
publisher = "Washington: American Chemical Society",
journal = "ACS Omega",
title = "Carboranyl Analogues of Mefenamic Acid and Their Biological Evaluation.",
number = "28",
volume = "7",
doi = "10.1021/acsomega.2c01523",
pages = "24282-24291"
}

Useini, L., Mojić, M., Laube, M., Lönnecke, P., Dahme, J., Sárosi, M. B., Mijatović, S., Maksimović-Ivanić, D., Pietzsch, J.,& Hey-Hawkins, E.. (2022). Carboranyl Analogues of Mefenamic Acid and Their Biological Evaluation.. in ACS Omega
Washington: American Chemical Society., 7(28), 24282-24291.
https://doi.org/10.1021/acsomega.2c01523

Useini L, Mojić M, Laube M, Lönnecke P, Dahme J, Sárosi MB, Mijatović S, Maksimović-Ivanić D, Pietzsch J, Hey-Hawkins E. Carboranyl Analogues of Mefenamic Acid and Their Biological Evaluation.. in ACS Omega. 2022;7(28):24282-24291.
doi:10.1021/acsomega.2c01523 .

Useini, Liridona, Mojić, Marija, Laube, Markus, Lönnecke, Peter, Dahme, Jonas, Sárosi, Menyhárt B., Mijatović, Sanja, Maksimović-Ivanić, Danijela, Pietzsch, Jens, Hey-Hawkins, Evamarie, "Carboranyl Analogues of Mefenamic Acid and Their Biological Evaluation." in ACS Omega, 7, no. 28 (2022):24282-24291,
https://doi.org/10.1021/acsomega.2c01523 . .

TY  - JOUR
AU  - Saretz, Stefan
AU  - Basset, Gabriele
AU  - Useini, Liridona
AU  - Laube, Markus
AU  - Pietzsch, Jens
AU  - Drača, Dijana
AU  - Maksimović-Ivanić, Danijela
AU  - Trambauer, Johannes
AU  - Steiner, Harald
AU  - Hey-Hawkins, Evamarie
PY  - 2021
UR  - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8151329/
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4250
AB  - All over the world, societies are facing rapidly aging populations combined with a growing number of patients suffering from Alzheimer’s disease (AD). One focus in pharmaceutical research to address this issue is on the reduction of the longer amyloid-β (Aβ) fragments in the brain by modulation of γ-secretase, a membrane-bound protease. R-Flurbiprofen (tarenflurbil) was studied in this regard but failed to show significant improvement in AD patients in a phase 3 clinical trial. This was mainly attributed to its low ability to cross the blood–brain barrier (BBB). Here, we present the synthesis and in vitro evaluation of a racemic meta-carborane analogue of flurbiprofen. By introducing the carborane moiety, the hydrophobicity could be shifted into a more favourable range for the penetration of the blood–brain barrier, evident by a logD7.4 value of 2.0. Furthermore, our analogue retained γ-secretase modulator activity in comparison to racemic flurbiprofen in a cell-based assay. These findings demonstrate the potential of carboranes as phenyl mimetics also in AD research.
PB  - MDPI AG
T2  - Molecules
T1  - Modulation of γ-Secretase Activity by a Carborane-Based Flurbiprofen Analogue
IS  - 10
VL  - 26
DO  - 10.3390/molecules26102843
SP  - 2843
ER  - 

@article{
author = "Saretz, Stefan and Basset, Gabriele and Useini, Liridona and Laube, Markus and Pietzsch, Jens and Drača, Dijana and Maksimović-Ivanić, Danijela and Trambauer, Johannes and Steiner, Harald and Hey-Hawkins, Evamarie",
year = "2021",
abstract = "All over the world, societies are facing rapidly aging populations combined with a growing number of patients suffering from Alzheimer’s disease (AD). One focus in pharmaceutical research to address this issue is on the reduction of the longer amyloid-β (Aβ) fragments in the brain by modulation of γ-secretase, a membrane-bound protease. R-Flurbiprofen (tarenflurbil) was studied in this regard but failed to show significant improvement in AD patients in a phase 3 clinical trial. This was mainly attributed to its low ability to cross the blood–brain barrier (BBB). Here, we present the synthesis and in vitro evaluation of a racemic meta-carborane analogue of flurbiprofen. By introducing the carborane moiety, the hydrophobicity could be shifted into a more favourable range for the penetration of the blood–brain barrier, evident by a logD7.4 value of 2.0. Furthermore, our analogue retained γ-secretase modulator activity in comparison to racemic flurbiprofen in a cell-based assay. These findings demonstrate the potential of carboranes as phenyl mimetics also in AD research.",
publisher = "MDPI AG",
journal = "Molecules",
title = "Modulation of γ-Secretase Activity by a Carborane-Based Flurbiprofen Analogue",
number = "10",
volume = "26",
doi = "10.3390/molecules26102843",
pages = "2843"
}

Saretz, S., Basset, G., Useini, L., Laube, M., Pietzsch, J., Drača, D., Maksimović-Ivanić, D., Trambauer, J., Steiner, H.,& Hey-Hawkins, E.. (2021). Modulation of γ-Secretase Activity by a Carborane-Based Flurbiprofen Analogue. in Molecules
MDPI AG., 26(10), 2843.
https://doi.org/10.3390/molecules26102843

Saretz S, Basset G, Useini L, Laube M, Pietzsch J, Drača D, Maksimović-Ivanić D, Trambauer J, Steiner H, Hey-Hawkins E. Modulation of γ-Secretase Activity by a Carborane-Based Flurbiprofen Analogue. in Molecules. 2021;26(10):2843.
doi:10.3390/molecules26102843 .

Saretz, Stefan, Basset, Gabriele, Useini, Liridona, Laube, Markus, Pietzsch, Jens, Drača, Dijana, Maksimović-Ivanić, Danijela, Trambauer, Johannes, Steiner, Harald, Hey-Hawkins, Evamarie, "Modulation of γ-Secretase Activity by a Carborane-Based Flurbiprofen Analogue" in Molecules, 26, no. 10 (2021):2843,
https://doi.org/10.3390/molecules26102843 . .

TY  - JOUR
AU  - Buzharevski, Antonio
AU  - Paskaš, Svetlana
AU  - Sárosi, Menyhárt-Botond
AU  - Laube, Markus
AU  - Lönnecke, Peter
AU  - Neumann, Wilma
AU  - Murganić, Blagoje
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Pietzsch, Jens
AU  - Hey-Hawkins, Evamarie
PY  - 2020
UR  - http://www.ncbi.nlm.nih.gov/pubmed/32179835
UR  - http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=PMC7076013
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3640
AB  - Owing to the involvement of cyclooxygenase-2 (COX-2) in carcinogenesis, COX-2-selective inhibitors are increasingly studied for their potential cytotoxic properties. Moreover, the incorporation of carboranes in structures of established anti-inflammatory drugs can improve the potency and metabolic stability of the inhibitors. Herein, we report the synthesis of carborane-containing derivatives of rofecoxib that display remarkable cytotoxic or cytostatic activity in the micromolar range with excellent selectivity for melanoma and colon cancer cell lines over normal cells. Furthermore, it was shown that the carborane-modified derivatives of rofecoxib showed different modes of action that were dependent on the cell type.
T2  - Scientific Reports
T1  - Carboranyl Derivatives of Rofecoxib with Cytostatic Activity against Human Melanoma and Colon Cancer Cells.
IS  - 1
VL  - 10
DO  - 10.1038/s41598-020-59059-3
SP  - 4827
ER  - 

@article{
author = "Buzharevski, Antonio and Paskaš, Svetlana and Sárosi, Menyhárt-Botond and Laube, Markus and Lönnecke, Peter and Neumann, Wilma and Murganić, Blagoje and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Pietzsch, Jens and Hey-Hawkins, Evamarie",
year = "2020",
abstract = "Owing to the involvement of cyclooxygenase-2 (COX-2) in carcinogenesis, COX-2-selective inhibitors are increasingly studied for their potential cytotoxic properties. Moreover, the incorporation of carboranes in structures of established anti-inflammatory drugs can improve the potency and metabolic stability of the inhibitors. Herein, we report the synthesis of carborane-containing derivatives of rofecoxib that display remarkable cytotoxic or cytostatic activity in the micromolar range with excellent selectivity for melanoma and colon cancer cell lines over normal cells. Furthermore, it was shown that the carborane-modified derivatives of rofecoxib showed different modes of action that were dependent on the cell type.",
journal = "Scientific Reports",
title = "Carboranyl Derivatives of Rofecoxib with Cytostatic Activity against Human Melanoma and Colon Cancer Cells.",
number = "1",
volume = "10",
doi = "10.1038/s41598-020-59059-3",
pages = "4827"
}

Buzharevski, A., Paskaš, S., Sárosi, M., Laube, M., Lönnecke, P., Neumann, W., Murganić, B., Mijatović, S., Maksimović-Ivanić, D., Pietzsch, J.,& Hey-Hawkins, E.. (2020). Carboranyl Derivatives of Rofecoxib with Cytostatic Activity against Human Melanoma and Colon Cancer Cells.. in Scientific Reports, 10(1), 4827.
https://doi.org/10.1038/s41598-020-59059-3

Buzharevski A, Paskaš S, Sárosi M, Laube M, Lönnecke P, Neumann W, Murganić B, Mijatović S, Maksimović-Ivanić D, Pietzsch J, Hey-Hawkins E. Carboranyl Derivatives of Rofecoxib with Cytostatic Activity against Human Melanoma and Colon Cancer Cells.. in Scientific Reports. 2020;10(1):4827.
doi:10.1038/s41598-020-59059-3 .

Buzharevski, Antonio, Paskaš, Svetlana, Sárosi, Menyhárt-Botond, Laube, Markus, Lönnecke, Peter, Neumann, Wilma, Murganić, Blagoje, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Pietzsch, Jens, Hey-Hawkins, Evamarie, "Carboranyl Derivatives of Rofecoxib with Cytostatic Activity against Human Melanoma and Colon Cancer Cells." in Scientific Reports, 10, no. 1 (2020):4827,
https://doi.org/10.1038/s41598-020-59059-3 . .

TY  - JOUR
AU  - Buzharevski, Antonio
AU  - Paskaš, Svetlana
AU  - Laube, Markus
AU  - Lönnecke, Peter
AU  - Neumann, Wilma
AU  - Murganić, Blagoje
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Pietzsch, Jens
AU  - Hey-Hawkins, Evamarie
PY  - 2019
UR  - http://pubs.acs.org/doi/10.1021/acsomega.9b00412
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3366
AB  - Ketoprofen is a widely used nonsteroidal anti-inflammatory drug (NSAID) that also exhibits cytotoxic activity against various cancers. This makes ketoprofen an attractive structural lead for the development of new NSAIDs and cytotoxic agents. Recently, the incorporation of carboranes as phenyl mimetics in structures of established drugs has emerged as an attractive strategy in drug design. Herein, we report the synthesis and evaluation of four novel carborane-containing derivatives of ketoprofen, two of which are prodrug esters with an nitric oxide-releasing moiety. One of these prodrug esters exhibited high cytostatic activity against melanoma and colon cancer cell lines. The most pronounced activity was found in cell lines that are sensitive to oxidative stress, which was apparently induced by the ketoprofen analogue.
T2  - ACS Omega
T2  - ACS Omega
T1  - Carboranyl Analogues of Ketoprofen with Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines
IS  - 5
VL  - 4
DO  - 10.1021/acsomega.9b00412
SP  - 8824
EP  - 8833
ER  - 

@article{
author = "Buzharevski, Antonio and Paskaš, Svetlana and Laube, Markus and Lönnecke, Peter and Neumann, Wilma and Murganić, Blagoje and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Pietzsch, Jens and Hey-Hawkins, Evamarie",
year = "2019",
abstract = "Ketoprofen is a widely used nonsteroidal anti-inflammatory drug (NSAID) that also exhibits cytotoxic activity against various cancers. This makes ketoprofen an attractive structural lead for the development of new NSAIDs and cytotoxic agents. Recently, the incorporation of carboranes as phenyl mimetics in structures of established drugs has emerged as an attractive strategy in drug design. Herein, we report the synthesis and evaluation of four novel carborane-containing derivatives of ketoprofen, two of which are prodrug esters with an nitric oxide-releasing moiety. One of these prodrug esters exhibited high cytostatic activity against melanoma and colon cancer cell lines. The most pronounced activity was found in cell lines that are sensitive to oxidative stress, which was apparently induced by the ketoprofen analogue.",
journal = "ACS Omega, ACS Omega",
title = "Carboranyl Analogues of Ketoprofen with Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines",
number = "5",
volume = "4",
doi = "10.1021/acsomega.9b00412",
pages = "8824-8833"
}

Buzharevski, A., Paskaš, S., Laube, M., Lönnecke, P., Neumann, W., Murganić, B., Mijatović, S., Maksimović-Ivanić, D., Pietzsch, J.,& Hey-Hawkins, E.. (2019). Carboranyl Analogues of Ketoprofen with Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines. in ACS Omega, 4(5), 8824-8833.
https://doi.org/10.1021/acsomega.9b00412

Buzharevski A, Paskaš S, Laube M, Lönnecke P, Neumann W, Murganić B, Mijatović S, Maksimović-Ivanić D, Pietzsch J, Hey-Hawkins E. Carboranyl Analogues of Ketoprofen with Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines. in ACS Omega. 2019;4(5):8824-8833.
doi:10.1021/acsomega.9b00412 .

Buzharevski, Antonio, Paskaš, Svetlana, Laube, Markus, Lönnecke, Peter, Neumann, Wilma, Murganić, Blagoje, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Pietzsch, Jens, Hey-Hawkins, Evamarie, "Carboranyl Analogues of Ketoprofen with Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines" in ACS Omega, 4, no. 5 (2019):8824-8833,
https://doi.org/10.1021/acsomega.9b00412 . .

TY  - JOUR
AU  - Buzharevski, Antonio
AU  - Paskas, Svetlana
AU  - Sárosi, Menyhárt‐Botond
AU  - Laube, Markus
AU  - Lönnecke, Peter
AU  - Neumann, Wilma
AU  - Mijatović, Sanja
AU  - Maksimović-Ivanić, Danijela
AU  - Pietzsch, Jens
AU  - Hey-Hawkins, Evamarie
PY  - 2019
UR  - https://onlinelibrary.wiley.com/doi/abs/10.1002/cmdc.201800685
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3254
AB  - Nonsteroidal anti-inflammatory drugs (NSAIDs) are the most common way of treating inflammatory disorders. Their widespread use helped reveal their other modes of action as pharmaceuticals, such as a profound effect on various cancers. Celecoxib has proven to be a very prominent member of this group with cytostatic activities. On the other hand, the highly dynamic field of drug design is constantly searching for new ways of modifying known structures to obtain more powerful and less harmful drugs. A very interesting development is the implementation of carboranes in pharmacologically active structures, mostly as phenyl mimetics. Herein we report the synthesis of three carborane-containing derivatives of the COX-2-selective NSAID celecoxib. The new compounds proved to have promising cytostatic potential against various melanoma and colorectal adenocarcinoma cell lines. Inhibited proliferation accompanied by caspase-independent apoptotic cell death was found to be the main cause of decreased cell viability upon treatment with the most efficient celecoxib analogue, 3 b (4-[5-(1,7-dicarba-closo-dodecaboranyl)-3-trifluoromethyl-1H-pyrazol-1-yl]-1-methylsulfonylbenzene).
T2  - ChemMedChem
T1  - Carboranyl Analogues of Celecoxib with Potent Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines.
IS  - 3
VL  - 14
DO  - 10.1002/cmdc.201800685
SP  - 315
EP  - 321
ER  - 

@article{
author = "Buzharevski, Antonio and Paskas, Svetlana and Sárosi, Menyhárt‐Botond and Laube, Markus and Lönnecke, Peter and Neumann, Wilma and Mijatović, Sanja and Maksimović-Ivanić, Danijela and Pietzsch, Jens and Hey-Hawkins, Evamarie",
year = "2019",
abstract = "Nonsteroidal anti-inflammatory drugs (NSAIDs) are the most common way of treating inflammatory disorders. Their widespread use helped reveal their other modes of action as pharmaceuticals, such as a profound effect on various cancers. Celecoxib has proven to be a very prominent member of this group with cytostatic activities. On the other hand, the highly dynamic field of drug design is constantly searching for new ways of modifying known structures to obtain more powerful and less harmful drugs. A very interesting development is the implementation of carboranes in pharmacologically active structures, mostly as phenyl mimetics. Herein we report the synthesis of three carborane-containing derivatives of the COX-2-selective NSAID celecoxib. The new compounds proved to have promising cytostatic potential against various melanoma and colorectal adenocarcinoma cell lines. Inhibited proliferation accompanied by caspase-independent apoptotic cell death was found to be the main cause of decreased cell viability upon treatment with the most efficient celecoxib analogue, 3 b (4-[5-(1,7-dicarba-closo-dodecaboranyl)-3-trifluoromethyl-1H-pyrazol-1-yl]-1-methylsulfonylbenzene).",
journal = "ChemMedChem",
title = "Carboranyl Analogues of Celecoxib with Potent Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines.",
number = "3",
volume = "14",
doi = "10.1002/cmdc.201800685",
pages = "315-321"
}

Buzharevski, A., Paskas, S., Sárosi, M., Laube, M., Lönnecke, P., Neumann, W., Mijatović, S., Maksimović-Ivanić, D., Pietzsch, J.,& Hey-Hawkins, E.. (2019). Carboranyl Analogues of Celecoxib with Potent Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines.. in ChemMedChem, 14(3), 315-321.
https://doi.org/10.1002/cmdc.201800685

Buzharevski A, Paskas S, Sárosi M, Laube M, Lönnecke P, Neumann W, Mijatović S, Maksimović-Ivanić D, Pietzsch J, Hey-Hawkins E. Carboranyl Analogues of Celecoxib with Potent Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines.. in ChemMedChem. 2019;14(3):315-321.
doi:10.1002/cmdc.201800685 .

Buzharevski, Antonio, Paskas, Svetlana, Sárosi, Menyhárt‐Botond, Laube, Markus, Lönnecke, Peter, Neumann, Wilma, Mijatović, Sanja, Maksimović-Ivanić, Danijela, Pietzsch, Jens, Hey-Hawkins, Evamarie, "Carboranyl Analogues of Celecoxib with Potent Cytostatic Activity against Human Melanoma and Colon Cancer Cell Lines." in ChemMedChem, 14, no. 3 (2019):315-321,
https://doi.org/10.1002/cmdc.201800685 . .