Camptothecin
medication Under reviewCamptothecin is a naturally occurring pentacyclic quinoline alkaloid originally isolated from the bark and seeds of the Camptotheca acuminata tree. It functions as a potent inhibitor of topoisomerase I, an enzyme essential for DNA replication and transcription. By binding to the topoisomerase I-DNA complex, it stabilizes the cleavable complex, preventing DNA re-ligation and causing double-strand breaks that lead to apoptosis, primarily in rapidly dividing cells.
Research summary
Camptothecin and its derivatives have been extensively studied for anticancer applications, demonstrating activity in preliminary and clinical trials against various malignancies. However, no studies were identified involving healthy human subjects, as research focuses exclusively on cancer patients or preclinical models. Evidence in healthy humans is entirely absent, limiting any consensus on non-cancer health applications.
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