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Abstract Title:

Cytotoxicity of Tanshinone IIA combined with Taxol on drug-resist breast cancer cells MCF-7 through inhibition of Tau.

Abstract Source:

Phytother Res. 2018 Apr ;32(4):667-671. Epub 2018 Jan 24. PMID: 29368408

Abstract Author(s):

Hui Lin, Luya Zheng, Shixiao Li, Bojian Xie, Binbin Cui, Aixiao Xia, Zhong Lin, Peng Zhou

Article Affiliation:

Hui Lin

Abstract:

Drug resistance represents a major obstacle to improving the overall response and survival of cancer patients. Taxol is one of the most commonly used chemotherapy agents in breast cancer. As with many cancer therapeutic agents, resistance remains a significant problem when using Taxol to treat malignancies. In this study, estrogen receptor positive breast cancer cells MCF-7 were induced Taxol resistance. And Tanshinone IIA combined with Taxol was chosen to treat it. The drugs combination showed additive effect in most drug concentrations. Drug resistance cancer cells showed a higher microtubule associated protein (Tau) expression, which was considered as one of the reasons for Taxol resistance. Tanshinone IIA inhibited the expression of Tau in MCF-7 cells and resulted in higher sensibility of Taxol. Moreover, Tanshinone IIA also showed cytotoxicity to MCF-7, which might be related to its estrogenicity effect. In conclusion, the combination of Tanshinone IIA and Taxol showed higher cytotoxicity to Taxol resistant MCF-7 cells, which might be related to the inhibition of Tau.

Study Type : In Vitro Study

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Sayer Ji
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