pulchrin a

Pulchrin A is a new natural coumarin derivative isolated from natural sources, specifically from Enicosanthellum pulchrum. It exhibits potent cytotoxic activity against ovarian cancer (CAOV-3) cells, showing greater activity than cisplatin. Mechanistic studies indicate that pulchrin A induces apoptosis via the intrinsic (mitochondrial) pathway, marked by procaspase 3 and 9 activation, downregulation of Bcl-2 protein, and upregulation of Bax protein. It disrupts the cell cycle at G0/G1 phase, leading to apoptosis, and demonstrates a high binding affinity to the Bcl-2 protein, functioning as a Bcl-2 antagonist. Pulchrin A represents a promising natural compound lead for the development of new anticancer agents, particularly against ovarian cancer[1][3].