Abstract Title:

Anthocyanidins inhibit epithelial-mesenchymal transition through a TGFβ/Smad2 signaling pathway in glioblastoma cells.

Abstract Source:

Mol Carcinog. 2017 Mar ;56(3):1088-1099. Epub 2016 Oct 4. PMID: 27649384

Abstract Author(s):

Amira Ouanouki, Sylvie Lamy, Borhane Annabi

Article Affiliation:

Amira Ouanouki


Epidemiological studies have convincingly demonstrated that diets rich in fruits and vegetables play an important role in preventing cancer due to their polyphenol content. Among polyphenols, the anthocyanidins are known to possess anti-inflammatory, cardioprotective, anti-angiogenic, and anti-carcinogenic properties. Despite the well-known role of transforming growth factor-β (TGF-β) in high grade gliomas, the impact of anthocyanidins on TGF-β-induced epithelial-mesenchymal transition (EMT), a process that allows benign tumor cells to infiltrate surrounding tissues, remains poorly understood. The objective of this study is to investigate the impact of anthocyanidinssuch as cyanidin (Cy), delphinidin (Dp), malvidin (Mv), pelargonidin (Pg), and petunidin (Pt) on TGF-β-induced EMT and to determine the mechanism(s) underlying such action. Human U-87 glioblastoma (U-87 MG) cells were treated with anthocyanidins prior to, along with or following the addition of TGF-β. We found that anthocyanidins differently affected TGF-β-induced EMT, depending on the treatment conditions. Dp was the most potent EMT inhibitor through its inhibitory effect on the TGF-β Smad and non-Smad signaling pathways. These effects altered expression of the EMT mesenchymal markers fibronectin and Snail, as well as markedly reducing U-87 MG cell migration. Our study highlights a new action of anthocyanidins against EMT that supports their beneficial health and chemopreventive effects in dietary-based strategies against cancer. © 2016 Wiley Periodicals, Inc.

Study Type : In Vitro Study

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