Increase in fatty acids and flotillins upon resveratrol treatment of human breast cancer cells

Author:

Gomes Luciana,Sorgine Marcos,Passos Carlos Luan Alves,Ferreira Christian,de Andrade Ivone Rosa,Silva Jerson L.ORCID,Atella Georgia C.,Mermelstein Claudia S.ORCID,Fialho Eliane

Abstract

AbstractFlotillin-1 and flotillin-2 are highly conserved proteins that localize into cholesterol-rich microdomains in cellular membranes. Flotillins are closely related to the occurrence and development of various types of human cancers. Flotillin-1 is highly expressed in breast cancer, and the high expression level of flotillin-1 is significantly correlated with poorer patient survival. Here we studied the relationship between the formation of lipid rafts and the expression of flotillins and lipids in human breast cancer cells. We used the polyphenol compound resveratrol to alter the structure and function of the plasma membrane. Our data revealed an increase in fatty acids in MCF-7 and MDA-MB-231 cells upon resveratrol treatment. Interestingly, we also found an increase in the expression of both flotillin-1 and flotillin-2 in breast tumor cells after treatment. Resveratrol also induced changes in the pattern of flotillin distribution among detergent-resistant lipid rafts fractions in both cell lines and induced the nuclear translocation of flotillin-2. Since resveratrol has been pointed out as a putative cancer therapy agent, our results could have an impact on the understanding of the effects of resveratrol in tumor cells.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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