Antiproliferative effect of Saraca asoca methanol bark extract on triple negative breast cancer (TNBC)

Abstract Background Saraca asoca (Asoka) is reported to possess phytoestrogenic components with anticancer properties. The phytoestrogens are recognized as natural agonists for ERβ, which acts as an antagonist to ERα. Despite the absence of ERα, studies have identified ERβ in 50–80% of triple negati...

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Main Authors: Chennattu M. Pareeth, K. P. Safna Hussan, Davis Anu, Nair Meera, Deepu Mathew, Ravishankar Valsalan, Mohamed Shahin Thayyil, Kannoor M. Thara, Achuthan C. Raghavamenon, Thekkekara D. Babu
Format: Article
Language:English
Published: SpringerOpen 2024-03-01
Series:Future Journal of Pharmaceutical Sciences
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Online Access:https://doi.org/10.1186/s43094-024-00623-3
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author Chennattu M. Pareeth
K. P. Safna Hussan
Davis Anu
Nair Meera
Deepu Mathew
Ravishankar Valsalan
Mohamed Shahin Thayyil
Kannoor M. Thara
Achuthan C. Raghavamenon
Thekkekara D. Babu
author_facet Chennattu M. Pareeth
K. P. Safna Hussan
Davis Anu
Nair Meera
Deepu Mathew
Ravishankar Valsalan
Mohamed Shahin Thayyil
Kannoor M. Thara
Achuthan C. Raghavamenon
Thekkekara D. Babu
author_sort Chennattu M. Pareeth
collection DOAJ
description Abstract Background Saraca asoca (Asoka) is reported to possess phytoestrogenic components with anticancer properties. The phytoestrogens are recognized as natural agonists for ERβ, which acts as an antagonist to ERα. Despite the absence of ERα, studies have identified ERβ in 50–80% of triple negative breast cancers (TNBC). Thus, the present study is intended to reveal the role of phytoestrogens of Asoka on TNBC. The cytotoxic effect of Asoka methanol bark extract was analyzed on different breast cancer cell lines by MTT assay. Estrogen-screen assay was employed to determine the proliferative/antiproliferative effect. Identification of phytoestrogens in Asoka was accomplished using LC-MS analysis and in silico docking studies were performed to investigate possible interactions of phytoestrogens with ERα and β. Results The extract of Asoka was found to be cytotoxic against TNBC cell line, MDAMB-231 with IC50 of 70.22 ± 1.89 μg/mL and towards HER+ breast cancer cell line, SKBR3 with IC50 of 98.41 ± 2.31 μg/mL, respectively. Whereas the extract did not show any cytotoxicity towards ERα cell line, MCF-7 even up to the concentration 300 μg/mL. Estrogen-screen assay emphasized an estrogenic effect of the extract on MCF-7 and an anti-estrogenic/antiproliferative effect on MDAMB-231 cells. LC–MS analysis identified phytoestrogens such as β-sitosterol, quercetin, kaempferol and others. The docking results revealed good binding efficacy of phytoestrogens with ERβ than ERα and quercetin shows more affinity with the highest docking score of − 9.220. Strikingly, it was found that the S. asoca methanol extract was preferentially cytotoxic to TNBC cells. Conclusion The study demonstrates selective anticancer properties of S. asoca methanol extract on TNBC, which indicates a selective impact on ER subtypes. The identification of phytoestrogens, such as β-sitosterol, quercetin and kaempferol, in the Asoka methanol bark extract provides a molecular basis for its observed effects. In silico studies further support the view that these phytoestrogens may preferentially interact with ERβ rather than ERα. Quercetin, in particular, demonstrated the highest binding efficacy with ERβ, suggesting its potential role in mediating the anticancer effects observed in TNBC cells. Further research is warranted to explore the full therapeutic potential of phytoestrogens in breast cancer treatment.
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spelling doaj.art-336511864ea54d558213dd584ac865c12024-03-31T11:12:26ZengSpringerOpenFuture Journal of Pharmaceutical Sciences2314-72532024-03-0110111310.1186/s43094-024-00623-3Antiproliferative effect of Saraca asoca methanol bark extract on triple negative breast cancer (TNBC)Chennattu M. Pareeth0K. P. Safna Hussan1Davis Anu2Nair Meera3Deepu Mathew4Ravishankar Valsalan5Mohamed Shahin Thayyil6Kannoor M. Thara7Achuthan C. Raghavamenon8Thekkekara D. Babu9Department of Biochemistry, Amala Cancer Research Center (Recognized Research Center, University of Calicut)Department of Biochemistry, Amala Cancer Research Center (Recognized Research Center, University of Calicut)Department of Biochemistry, Amala Cancer Research Center (Recognized Research Center, University of Calicut)Department of Biochemistry, Amala Cancer Research Center (Recognized Research Center, University of Calicut)Bioinformatics Center, Kerala Agricultural UniversityBioinformatics Center, Kerala Agricultural UniversityDepartment of Physics, University of CalicutDepartment of Biotechnology, University of CalicutDepartment of Biochemistry, Amala Cancer Research Center (Recognized Research Center, University of Calicut)Department of Biochemistry, Amala Cancer Research Center (Recognized Research Center, University of Calicut)Abstract Background Saraca asoca (Asoka) is reported to possess phytoestrogenic components with anticancer properties. The phytoestrogens are recognized as natural agonists for ERβ, which acts as an antagonist to ERα. Despite the absence of ERα, studies have identified ERβ in 50–80% of triple negative breast cancers (TNBC). Thus, the present study is intended to reveal the role of phytoestrogens of Asoka on TNBC. The cytotoxic effect of Asoka methanol bark extract was analyzed on different breast cancer cell lines by MTT assay. Estrogen-screen assay was employed to determine the proliferative/antiproliferative effect. Identification of phytoestrogens in Asoka was accomplished using LC-MS analysis and in silico docking studies were performed to investigate possible interactions of phytoestrogens with ERα and β. Results The extract of Asoka was found to be cytotoxic against TNBC cell line, MDAMB-231 with IC50 of 70.22 ± 1.89 μg/mL and towards HER+ breast cancer cell line, SKBR3 with IC50 of 98.41 ± 2.31 μg/mL, respectively. Whereas the extract did not show any cytotoxicity towards ERα cell line, MCF-7 even up to the concentration 300 μg/mL. Estrogen-screen assay emphasized an estrogenic effect of the extract on MCF-7 and an anti-estrogenic/antiproliferative effect on MDAMB-231 cells. LC–MS analysis identified phytoestrogens such as β-sitosterol, quercetin, kaempferol and others. The docking results revealed good binding efficacy of phytoestrogens with ERβ than ERα and quercetin shows more affinity with the highest docking score of − 9.220. Strikingly, it was found that the S. asoca methanol extract was preferentially cytotoxic to TNBC cells. Conclusion The study demonstrates selective anticancer properties of S. asoca methanol extract on TNBC, which indicates a selective impact on ER subtypes. The identification of phytoestrogens, such as β-sitosterol, quercetin and kaempferol, in the Asoka methanol bark extract provides a molecular basis for its observed effects. In silico studies further support the view that these phytoestrogens may preferentially interact with ERβ rather than ERα. Quercetin, in particular, demonstrated the highest binding efficacy with ERβ, suggesting its potential role in mediating the anticancer effects observed in TNBC cells. Further research is warranted to explore the full therapeutic potential of phytoestrogens in breast cancer treatment.https://doi.org/10.1186/s43094-024-00623-3AsokaAnticancerPhytoestrogenEstrogen receptorMolecular dockingTNBC
spellingShingle Chennattu M. Pareeth
K. P. Safna Hussan
Davis Anu
Nair Meera
Deepu Mathew
Ravishankar Valsalan
Mohamed Shahin Thayyil
Kannoor M. Thara
Achuthan C. Raghavamenon
Thekkekara D. Babu
Antiproliferative effect of Saraca asoca methanol bark extract on triple negative breast cancer (TNBC)
Future Journal of Pharmaceutical Sciences
Asoka
Anticancer
Phytoestrogen
Estrogen receptor
Molecular docking
TNBC
title Antiproliferative effect of Saraca asoca methanol bark extract on triple negative breast cancer (TNBC)
title_full Antiproliferative effect of Saraca asoca methanol bark extract on triple negative breast cancer (TNBC)
title_fullStr Antiproliferative effect of Saraca asoca methanol bark extract on triple negative breast cancer (TNBC)
title_full_unstemmed Antiproliferative effect of Saraca asoca methanol bark extract on triple negative breast cancer (TNBC)
title_short Antiproliferative effect of Saraca asoca methanol bark extract on triple negative breast cancer (TNBC)
title_sort antiproliferative effect of saraca asoca methanol bark extract on triple negative breast cancer tnbc
topic Asoka
Anticancer
Phytoestrogen
Estrogen receptor
Molecular docking
TNBC
url https://doi.org/10.1186/s43094-024-00623-3
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