Eicosapentaenoic acid suppresses angiogenesis via reducing secretion of IL ‑6 and VEGF from colon cancer‑associated fibroblasts.

Eicosapentaenoic acid suppresses angiogenesis via reducing secretion of IL‑6 and VEGF from colon cancer‑associated fibroblasts. Oncol Rep. 2019 May 02;: Authors: Ando N, Hara M, Shiga K, Yanagita T, Takasu K, Nakai N, Maeda Y, Hirokawa T, Takahashi H, Ishiguro H, Matsuo Y, Takiguchi S Abstract Eicosapentaenoic acid (EPA) improves interleukin (IL)‑6 hypercytokinemia in patients with advanced cancer due to its anti‑inflammatory effects. This EPA mechanism has been revealed to lead to several anticancer effects. While the effects of EPA on cancer cells have been investigated, particularly in terms of angiogenesis, its effects on the tumor stroma remain unclear. In the present study, the authors clarified the role of EPA in cancer angiogenesis against colon cancer‑associated fibroblasts (CAFs) from the colon stroma. With established human CAFs and normal fibroblasts from colon stroma (NFs), the authors evaluated IL‑6 and vascular endothelial growth factor (VEGF) secretion with or without EPA treatment using ELISA. The signal inhibition of mitogen‑activated protein kinase (ERK) in CAFs by EPA was evaluated using western blotting. In vitro anti‑angiogenesis effects were evaluated by the angiogenesis assay on Matrigel using human umbilical vein endothelial cells (HUVECs) cultured with the supernatant obtained from CAF cultures with or without EPA. IL‑6 secretion was greater from CAFs compared with that from NFs and stimula...
Source: Oncology Reports - Category: Cancer & Oncology Tags: Oncol Rep Source Type: research