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Abstract Title:

(-)‑Oleocanthal inhibits proliferation and migration by modulating Caentry through TRPC6 in breast cancer cells.

Abstract Source:

Biochim Biophys Acta Mol Cell Res. 2019 03 ;1866(3):474-485. Epub 2018 Oct 12. PMID: 30321616

Abstract Author(s):

R Diez-Bello, I Jardin, J J Lopez, M El Haouari, J Ortega-Vidal, J Altarejos, G M Salido, S Salido, J A Rosado

Article Affiliation:

R Diez-Bello

Abstract:

Triple negative breast cancer is an aggressive type of cancer that does not respond to hormonal therapy and current therapeutic strategies are accompanied by side effects due to cytotoxic actions on normal tissues. Therefore, there is a need for the identification of anti-cancer compounds with negligible effects on non-tumoral cells. Here we show that (-)‑oleocanthal (OLCT), a phenolic compound isolated from olive oil, selectively impairs MDA-MB-231 cell proliferation and viability without affecting the ability of non-tumoral MCF10A cells to proliferate or their viability. Similarly, OLCT selectively impairs the ability of MDA-MB-231 cells to migrate while the ability of MCF10A to migrate was unaffected. The effect of OLCT was not exclusive for triple negative breast cancer cells as we found that OLCT also attenuate cell viability and proliferation of MCF7 cells. Our results indicate that OLCT is unable to induce Camobilization in non-tumoral cells. By contrast, OLCT induces Caentry in MCF7 and MDA-MB-231 cells, which is impaired by TRPC6 expression silencing. We have found that MDA-MB-231 and MCF7 cells overexpress the channel TRPC6 as compared to non-tumoral MCF10A and treatment with OLCT for 24-72 h downregulates TRPC6 expression in MDA-MB-231 cells. These findings indicate that OLCT impairs the ability of breast cancer cells to proliferate and migrate via downregulation of TRPC6 channel expression while having no effect on the biology of non-tumoral breast cells.

Study Type : In Vitro Study

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