Weill Cornell Medicine Apr 16 2025 Bacteria naturally present in the human intestine, known as the gut microbiota, can transform cholesterol-derived bile acids into powerful metabolites that strengthen anti-cancer immunity by blocking androgen signaling, according to a preclinical study led by Weill Cornell Medicine investigators. The study was published on April 15 in Cell. "I was very surprised by our findings. As far as I know, no one has previously discovered molecules like these bile acids