Article Publish Status: FREE
Abstract Title:

Dietary Compound Proanthocyanidins from Chinese bayberry (Sieb. et Zucc.) leaves inhibit angiogenesis and regulate cell cycle of cisplatin-resistant ovarian cancer cells via targeting Akt pathway.

Abstract Source:

J Funct Foods. 2018 Jan ;40:573-581. Epub 2017 Dec 22. PMID: 29576805

Abstract Author(s):

Yu Zhang, Shiguo Chen, Chaoyang Wei, Gary O Rankin, Yon Rojanasakul, Ning Ren, Xingqian Ye, Yi Charlie Chen

Article Affiliation:

Yu Zhang


Ovarian cancer is the leading cause of death from gynecological malignancy and natural products have drawn great attention for cancer treatment. Chinese bayberry leaves proanthocyanidin (BLPs) with epigallocatechin-3-O-gallate (EGCG) as its terminal and major extension units is unusual in the plant kingdom. In the present study, BLPs showed strong growth inhibitory effects on cisplatin-resistant A2780/CP70 cells by inhibiting angiogenesis and inducing G1 cell cycle arrest. BLPs reduced the tube formation in HUVECs and attenuated the wound healing ability in A2780/CP70 cells. BLPs further reduced the level of ROS and targeted Akt/mTOR/p70S6K/4E-BP-1 pathway to reduce the expression of HIF-1α and VEGF, and thus inhibited angiogenesis. Furthermore, BLPs induced G1 cell cycle arrest by reducing the expressions of c-Myc, cyclin D1 and CDK4, which was also in accordance with the flow cytometry analysis. Overall, these results indicated that BLPs could be a valuable resource of natural compounds for cancer treatment.

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