Gut microbial metabolites facilitate anticancer therapy efficacy by modulating cytotoxic CD8+ T cell immunity

Autor: Wenyan Wang, Yiping Li, Xiaohuan Guo, Charles R. Mackay, Jiaoyan Huang, Xin Dong, Yun Chen, Yang Xin Fu, Yao He, Quanbo Wang, Liuhui Fu, Jing Zhang, Mingli Gong
Rok vydání: 2021
Předmět:
Zdroj: Cell Metabolism. 33:988-1000.e7
ISSN: 1550-4131
Popis: Summary Recent studies in both mice and humans have suggested that gut microbiota could modulate tumor responsiveness to chemo- or immunotherapies. However, the underlying mechanism is not clear yet. Here, we found that gut microbial metabolites, especially butyrate, could promote the efficacy of oxaliplatin by modulating CD8+ T cell function in the tumor microenvironment. Butyrate treatment directly boosted the antitumor cytotoxic CD8+ T cell responses both in vitro and in vivo in an ID2-dependent manner by promoting the IL-12 signaling pathway. In humans, the oxaliplatin responder cancer patients exhibited a higher amount of serum butyrate than did non-responders, which could also increase ID2 expression and function of human CD8+ T cells. Together, our findings suggest that the gut microbial metabolite butyrate could promote antitumor therapeutic efficacy through the ID2-dependent regulation of CD8+ T cell immunity, indicating that gut microbial metabolites could be effective as a part of cancer therapy.
Databáze: OpenAIRE