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- W2741178278 abstract "Abstract Recent advances in diagnostics and better understanding of molecular mechanism underlying breast cancer has let to the better therapeutic options and disease outcome for majority of breast cancer patients. However, ~10 - 20% of all breast cancers often referred to as “triple negative” as they lack expression of the estrogen (ER), progesterone (PR), and human epidermal growth factor 2 (HER2) receptors convey a poor prognosis due in part to a lack of targeted therapies. The aim of the current study is to evaluate whether triptolide and its water soluble analog Minnelide is effective against triple negative breast cancer cells. We have previously shown that triptolide/Minnelide not only reduces tumor growth in various cancer models but it also regulates epithelial -mesenchymal transition (EMT), an important mechanism underlying metastasis. In our preliminary findings using three triple negative breast cancer (TNBC) cell lines, MDA-MB-231, MDA-MB-468, and MDA-MB-157, we demonstrate that triptolide not only inhibits the proliferation of TNBC cells but also regulates the protein levels of EMT markers including β-Catenin and Vimentin. In order to elucidate the mechanism underlying triptolide mediated inhibition of cellular proliferation and regulation of EMT markers in TNBC cells, we identified Src kinase and Aurora kinase A as two new targets for triptolide action in TNBC cells. By targeting Src and Aurora kinase, triptolide disrupts the integrity of focal adhesion structures and reduces cell spreading via regulating FAK activity. Our preliminary findings regarding potential use of triptolide/Minnelide in TNBC based on in vitro experiments are promising. However, considering the complex pathophysiology of breast cancer and other biological factors playing role in a disease setting, in-vivo experiments to test the efficacy of Minnelide in relevant mouse models for mammary cancers are currently underway. Citation Format: Mahendra K. Singh, Soham Shah, Nikita Satish Sharma, Bhuwan Giri, Sulagna Banerjee, Ashok Saluja. Evaluation of Minnelide as potential targeted therapy for triple negative breast cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 5119. doi:10.1158/1538-7445.AM2017-5119" @default.
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- W2741178278 date "2017-07-01" @default.
- W2741178278 modified "2023-09-27" @default.
- W2741178278 title "Abstract 5119: Evaluation of Minnelide as potential targeted therapy for triple negative breast cancer" @default.
- W2741178278 doi "https://doi.org/10.1158/1538-7445.am2017-5119" @default.
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