虽然葡萄籽提取物的低聚原花青素（oligomeric proanthocyanidins，OPC）可防止肿瘤已被证明，其根本机制尚未充分探讨。最近的一项研究，发表在《科学报告》论文发现了一种法国葡萄籽OPC称为VX1通过几个通路预防癌症，抑制肿瘤的形成，并抑制肿瘤活性。

Study: French Grape Seed OPCs Suppress Tumor Formation in Cancer

http://markets.businessinsider.com/news/stocks/study-french-grape-seed-opcs-suppress-tumor-formation-in-cancer-1018993173

Toden S, Ravindranathan P, Gu J, Cardenas J, Yuchang M, Goel A. Oligomeric proanthocyanidins (OPCs) target cancer stem-like cells and suppress tumor organoid formation in colorectal cancer. Sci Rep. 2018 Feb 20;8(1):3335