Microcolin H is a marine lipopeptide and phosphatidylinositol transfer protein ligand that targets PITPα/β. Microcolin H increases the conversion of LC3I to LC3II and reduces p62 levels in cancer cells, leading to autophagy cell death (Autophagy) . Microcolin H effectively inhibits tumor development and has anti-proliferative activity in nude mouse subcutaneous tumor models[1].