This review examines a special group of fungal compounds called incisterols, with focus on demethylincisterol A3 (DM-A3), which shows promise as a cancer-fighting agent. DM-A3 works through multiple mechanisms: it blocks cancer cell growth pathways, inhibits specific cancer-promoting proteins, and has anti-inflammatory effects. The compound has shown strong activity against various cancer types in laboratory and animal studies, making it a candidate for further development as a potential cancer therapy.