Cancer Biology Research’s Post

Lactate in Tumor Inflammation and Angiogenesis Lactic acid promotes the angiogenesis of tumor cells by affecting endothelial cells. The entry of lactic acid into the tissue stroma by tumor cells can be facilitated by endothelial cells via MCT1. This process inhibits the degradation of HIF-1α in non-hypoxic endothelial cells. As a result, there is a significant up-regulation of endothelial cell production of VEGF and fibroblast growth factor (FGF), thus promoting angiogenesis. In addition to promoting neovascularization, lactic acid plays a role in tumor development that is often associated with inflammatory responses. Th17 cells in the tumor microenvironment gradually increase and promote the secretion of the cytokine IL-17 during tumor development. IL-17 can up-regulate the production of various pro-inflammatory cytokines and pro-angiogenic factors, further promoting tumor development. Source: Liu H, Pan M, Liu M, Zeng L, Li Y, Huang Z, Guo C and Wang H (2024) Lactate: a rising star in tumors and inflammation. Front. Immunol. 15:1496390.

  • diagram

To view or add a comment, sign in

Explore topics