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Article Publish Status: FREE
Abstract Title:

Polyphenol-rich strawberry extract (PRSE) shows in vitro and in vivo biological activity against invasive breast cancer cells.

Abstract Source:

Sci Rep. 2016 Aug 8 ;6:30917. Epub 2016 Aug 8. PMID: 27498973

Abstract Author(s):

Stefano Amatori, Luca Mazzoni, Josè Miguel Alvarez-Suarez, Francesca Giampieri, Massimiliano Gasparrini, Tamara Yuliett Forbes-Hernandez, Sadia Afrin, Alfredo Errico Provenzano, Giuseppe Persico, Bruno Mezzetti, Augusto Amici, Mirco Fanelli, Maurizio Battino

Article Affiliation:

Stefano Amatori

Abstract:

We describe the biological effects of a polyphenol-rich strawberry extract (PRSE), obtained from the"Alba"variety, on the highly aggressive and invasive basal-like breast cancer cell line A17. Dose-response and time-course experiments showed that PRSE is able to decrease the cellular viability of A17 cells in a time- and dose-dependent manner. PRSE effect on cell survival was investigated in other tumor and normal cell lines of both mouse and human origin, demonstrating that PRSE is more active against breast cancer cells. Cytofluorimetric analysis of A17 cells demonstrated that sub-lethal doses of PRSE reduce the number of cells in S phase, inducing the accumulation of cells in G1 phase of cell cycle. In addition, the migration of A17 cells was studied monitoring the ability of PRSE to inhibit cellular mobility. Gene expression analysis revealed the modulation of 12 genes playing different roles in the cellular migration, adhesion and invasion processes. Finally, in vivo experiments showed the growth inhibition of A17 cells orthotopically transplanted into FVB syngeneic mice fed with PRSE. Overall, we demonstrated that PRSE exerts important biological activities against a highly invasive breast cancer cell line both in vitro and in vivo suggesting the strawberry extracts as preventive/curative food strategy.

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Sayer Ji
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