Braun, Sebastian

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3b9e3348-77b6-4b47-b4b8-48f78183f84f
  • Braun, Sebastian (4)
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Author's Bibliography

Carborane-Based Tebufelone Analogs and Their Biological Evaluation In Vitro

Braun, Sebastian; Paskaš, Svetlana; Laube, Markus; George, Sven; Hofmann, Bettina; Lönnecke, Peter; Steinhilber, Dieter; Pietzsch, Jens; Mijatović, Sanja; Maksimović-Ivanić, Danijela; Hey-Hawkins, Evamarie

(Wiley-VCH GmbH, 2023)

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 . .
3
1
1

In vitro биолошка евалуација аналога di-tert-бутилфенола на бази p-карборана

Jelača, Sanja; Braun, Sebastian; Mijatović, Sanja; Hey-Hawkins, Evamarie; Maksimović-Ivanić, Danijela

(Kragujevac: Serbian Society for Immunology, Molecular Oncology and Regenerative Medicine, 2023)

TY  - CONF
AU  - Jelača, Sanja
AU  - Braun, Sebastian
AU  - Mijatović, Sanja
AU  - Hey-Hawkins, Evamarie
AU  - Maksimović-Ivanić, Danijela
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/6260
AB  - Tаргетовање медијатора инфламације као што су циклооксигеназа-2 (COX) и 5-липоксигеназа (5-LO) може бити обећавајућа стратегија у лечењу канцера. У циљу побољшања селективности, карборан је уграђен у комерцијалне двоструке инхибиторе COX-2/5-LО. У овој студији, процењена је антитуморска активност деривата di-tert-бутилфенола (R-830, KME-4, E-5110, and S-2474) и њихових одговарајућих аналога карборана (R-830-Cb, KME-4-Cb, E-5110-Cb, S-2474-Cb) на панелу хуманих ћелијских линија рака (A375, A549, HCT116, HT-29, and MDA-MB-231). Третман дериватима
di-tert-бутилфенола смањио је вијабилност свих ћелија рака на дозно зависан начин након 72 h. Истовремено, уградња p-карборан групе је резултирала смањењем цитотоксичног потенцијала за све тестиране аналоге карборана, осим R-830-Cb. Стога су за даље испитивање потенцијалног механизма деловања одабрани R-830 и његов карборан аналог R-830-Cb. За разлику од R-830, његов карборански пандан није утицао на вијабилитет ћелија примарног перитонеалног ексудата, што указује да је уградња карборана побољшала селективност према малигном фенотипу. Смањење вијабилности туморских ћелија изазвано R-830-Cb је праћено губитком дeoбног потенцијала, док је одређени проценат HCT116 ћелија био подвргнут програмираној ћелијској
смрти зависном од каспаза. Паралелно, флуоресцентна микроскопија је открила присуство бројних ћелија са абнормалним нуклеусима и кондензованим хроматином. Даље, обустављање аутофагије употребом инхибитора аутофагије 3-метил аденина (3-МА) и хлорокина, открило је цитопротективну улогу овог процеса, компромитујући активност лека. Сви уочени ефекти били су праћени смањеном производњом реактивних врста кисеоника и азота (ROS/RNS) што указује на поремећен редокс
статус ћелија као одговор на третман. Узевши заједно, аналог R-830-Cb на бази карборана је обећавајући кандидат за даљу процену антитуморског ефекта in vivo.
AB  - Targeting inflammatory mediators, such as cyclooxygenase-2 (COX) and 5-lipoxygenase
(5-LO), may be a promising strategy for the treatment of cancer. To improve the selectivity,
a carborane moiety was incorporated into known dual COX-2/5-LO inhibitors. In the
present study, we have evaluated the antitumor activity of di-tert-butylphenol derivatives
(R-830, KME-4, E-5110, and S-2474) and their respective p-carborane analogs (R-830-Cb,
KME-4-Cb, E-5110-Cb, and S-2474-Cb) on a panel of human cancer cell lines (A375, A549,
HCT116, HT-29, and MDA-MB-231). Treatment with di-tert-butylphenol derivatives decreased
the viability of all cancer cells in a dose-dependent manner after 72 h. At the same
time, incorporation of a p-carborane moiety resulted in diminished cytotoxic potential for
all tested carborane analogs, except R-830-Cb. Thus, for further investigation of the potential
mechanism of action, R-830 and its p-carborane analog R-830-Cb were selected. Differently
to R-830, its carborane counterpart did not affect the viability of primary peritoneal exudate
cells, indicating that incorporation of the carborane cage improved selectivity toward
the malignant phenotype. Tumor cell viability decrease triggered by R-830-Cb was followed
by a loss of dividing potential, while a certain percentage of HCT116 cells was subjected
to caspase-dependent programmed cell death. In parallel, fluorescent microscopy revealed
the presence of numerous cells with abnormally shaped nuclei and condensed chromatin.
Furthermore, abolishment of the autophagy using autophagy inhibitors 3-methyladenine
(3-MA) and chloroquine, revealed a cytoprotective role of this process, compromising the
activity of the drug. All observed effects were accompanied by reduced production of reactive
oxygen and nitrogen species (ROS/RNS) indicating a disturbed redox status of the cells
in response to the treatment. Taken together, carborane-based analog R-830-Cb is a promising
candidate for further assessment of the antitumor effect in vivo.
PB  - Kragujevac: Serbian Society for Immunology, Molecular Oncology and Regenerative Medicine
C3  - Abstract Book: The second Serbian Molecular Medicine Congress; 2023 Oct 6-8; Foča, Bosnia and Herzegovina
T1  - In vitro биолошка евалуација аналога di-tert-бутилфенола на бази p-карборана
T1  - In vitro biological evaluation of p-carborane-based di-tert-butylphenol analogs
SP  - 79
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_6260
ER  - 
@conference{
author = "Jelača, Sanja and Braun, Sebastian and Mijatović, Sanja and Hey-Hawkins, Evamarie and Maksimović-Ivanić, Danijela",
year = "2023",
abstract = "Tаргетовање медијатора инфламације као што су циклооксигеназа-2 (COX) и 5-липоксигеназа (5-LO) може бити обећавајућа стратегија у лечењу канцера. У циљу побољшања селективности, карборан је уграђен у комерцијалне двоструке инхибиторе COX-2/5-LО. У овој студији, процењена је антитуморска активност деривата di-tert-бутилфенола (R-830, KME-4, E-5110, and S-2474) и њихових одговарајућих аналога карборана (R-830-Cb, KME-4-Cb, E-5110-Cb, S-2474-Cb) на панелу хуманих ћелијских линија рака (A375, A549, HCT116, HT-29, and MDA-MB-231). Третман дериватима
di-tert-бутилфенола смањио је вијабилност свих ћелија рака на дозно зависан начин након 72 h. Истовремено, уградња p-карборан групе је резултирала смањењем цитотоксичног потенцијала за све тестиране аналоге карборана, осим R-830-Cb. Стога су за даље испитивање потенцијалног механизма деловања одабрани R-830 и његов карборан аналог R-830-Cb. За разлику од R-830, његов карборански пандан није утицао на вијабилитет ћелија примарног перитонеалног ексудата, што указује да је уградња карборана побољшала селективност према малигном фенотипу. Смањење вијабилности туморских ћелија изазвано R-830-Cb је праћено губитком дeoбног потенцијала, док је одређени проценат HCT116 ћелија био подвргнут програмираној ћелијској
смрти зависном од каспаза. Паралелно, флуоресцентна микроскопија је открила присуство бројних ћелија са абнормалним нуклеусима и кондензованим хроматином. Даље, обустављање аутофагије употребом инхибитора аутофагије 3-метил аденина (3-МА) и хлорокина, открило је цитопротективну улогу овог процеса, компромитујући активност лека. Сви уочени ефекти били су праћени смањеном производњом реактивних врста кисеоника и азота (ROS/RNS) што указује на поремећен редокс
статус ћелија као одговор на третман. Узевши заједно, аналог R-830-Cb на бази карборана је обећавајући кандидат за даљу процену антитуморског ефекта in vivo., Targeting inflammatory mediators, such as cyclooxygenase-2 (COX) and 5-lipoxygenase
(5-LO), may be a promising strategy for the treatment of cancer. To improve the selectivity,
a carborane moiety was incorporated into known dual COX-2/5-LO inhibitors. In the
present study, we have evaluated the antitumor activity of di-tert-butylphenol derivatives
(R-830, KME-4, E-5110, and S-2474) and their respective p-carborane analogs (R-830-Cb,
KME-4-Cb, E-5110-Cb, and S-2474-Cb) on a panel of human cancer cell lines (A375, A549,
HCT116, HT-29, and MDA-MB-231). Treatment with di-tert-butylphenol derivatives decreased
the viability of all cancer cells in a dose-dependent manner after 72 h. At the same
time, incorporation of a p-carborane moiety resulted in diminished cytotoxic potential for
all tested carborane analogs, except R-830-Cb. Thus, for further investigation of the potential
mechanism of action, R-830 and its p-carborane analog R-830-Cb were selected. Differently
to R-830, its carborane counterpart did not affect the viability of primary peritoneal exudate
cells, indicating that incorporation of the carborane cage improved selectivity toward
the malignant phenotype. Tumor cell viability decrease triggered by R-830-Cb was followed
by a loss of dividing potential, while a certain percentage of HCT116 cells was subjected
to caspase-dependent programmed cell death. In parallel, fluorescent microscopy revealed
the presence of numerous cells with abnormally shaped nuclei and condensed chromatin.
Furthermore, abolishment of the autophagy using autophagy inhibitors 3-methyladenine
(3-MA) and chloroquine, revealed a cytoprotective role of this process, compromising the
activity of the drug. All observed effects were accompanied by reduced production of reactive
oxygen and nitrogen species (ROS/RNS) indicating a disturbed redox status of the cells
in response to the treatment. Taken together, carborane-based analog R-830-Cb is a promising
candidate for further assessment of the antitumor effect in vivo.",
publisher = "Kragujevac: Serbian Society for Immunology, Molecular Oncology and Regenerative Medicine",
journal = "Abstract Book: The second Serbian Molecular Medicine Congress; 2023 Oct 6-8; Foča, Bosnia and Herzegovina",
title = "In vitro биолошка евалуација аналога di-tert-бутилфенола на бази p-карборана, In vitro biological evaluation of p-carborane-based di-tert-butylphenol analogs",
pages = "79-80",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_6260"
}
Jelača, S., Braun, S., Mijatović, S., Hey-Hawkins, E.,& Maksimović-Ivanić, D.. (2023). In vitro биолошка евалуација аналога di-tert-бутилфенола на бази p-карборана. in Abstract Book: The second Serbian Molecular Medicine Congress; 2023 Oct 6-8; Foča, Bosnia and Herzegovina
Kragujevac: Serbian Society for Immunology, Molecular Oncology and Regenerative Medicine., 79-80.
https://hdl.handle.net/21.15107/rcub_ibiss_6260
Jelača S, Braun S, Mijatović S, Hey-Hawkins E, Maksimović-Ivanić D. In vitro биолошка евалуација аналога di-tert-бутилфенола на бази p-карборана. in Abstract Book: The second Serbian Molecular Medicine Congress; 2023 Oct 6-8; Foča, Bosnia and Herzegovina. 2023;:79-80.
https://hdl.handle.net/21.15107/rcub_ibiss_6260 .
Jelača, Sanja, Braun, Sebastian, Mijatović, Sanja, Hey-Hawkins, Evamarie, Maksimović-Ivanić, Danijela, "In vitro биолошка евалуација аналога di-tert-бутилфенола на бази p-карборана" in Abstract Book: The second Serbian Molecular Medicine Congress; 2023 Oct 6-8; Foča, Bosnia and Herzegovina (2023):79-80,
https://hdl.handle.net/21.15107/rcub_ibiss_6260 .

Synthesis and In Vitro Biological Evaluation of p-Carborane-Based Di-tert-butylphenol Analogs

Braun, Sebastian; Jelača, Sanja; Laube, Marcus; George, Sven; Hofmann, Bettina; Lönnecke, Peter; Steinhilber, Dieter; Pietzsch, Jens; Mijatović, Sanja; Maksimović-Ivanić, Danijela; Hey-Hawkins, Evamarie

(Basel: MDPI, 2023)

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 . .
1

In Vitro Cytostatic Effect on Tumor Cells by Carborane‐Based Dual Cyclooxygenase‐2 and 5‐Lipoxygenase Inhibitors

Braun, Sebastian; Paskaš, Svetlana; Laube, Markus; George, Sven; Hofmann, Bettina; Lönnecke, Peter; Steinhilber, Dieter; Pietzsch, Jens; Mijatović, Sanja; Maksimović-Ivanić, Danijela; Hey‐Hawkins, Evamarie

(2023)

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 . .
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