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Nothapodytes nimmoniana
Tree of South and Southeast Asian forests, major natural source of camptothecin used in anticancer drugs.
Nothapodytes nimmoniana is a tree native to South and Southeast Asia, recognized as a major natural source of camptothecin, a potent topoisomerase I inhibitor used in anticancer drugs. It is used in traditional Indian medicine for fever and inflammation, but its raw plant material is highly toxic. The primary active compounds include camptothecin and 9-methoxycamptothecin, which are extracted for pharmaceutical processing.
Camptothecin and its analogues act as topoisomerase I inhibitors, stabilizing the topoisomerase I-DNA cleavage complex and preventing DNA religation, leading to DNA damage and apoptosis in cancer cells. These compounds also exhibit anti-inflammatory activity through inhibition of NF-κB signaling and modulation of cytokine production. The alkaloids may interact with multiple cellular targets, but the primary anticancer mechanism is topoisomerase I poisoning.
Tree of South and Southeast Asian forests, major natural source of camptothecin used in anticancer drugs.
Nothapodytes nimmoniana is a tree native to South and Southeast Asia, recognized as a major natural source of camptothecin, a potent topoisomerase I inhibitor used in anticancer drugs. It is used in traditional Indian medicine for fever and inflammation, but its raw plant material is highly toxic. The primary active compounds include camptothecin and 9-methoxycamptothecin, which are extracted for pharmaceutical processing.
Camptothecin and its analogues act as topoisomerase I inhibitors, stabilizing the topoisomerase I-DNA cleavage complex and preventing DNA religation, leading to DNA damage and apoptosis in cancer cells. These compounds also exhibit anti-inflammatory activity through inhibition of NF-κB signaling and modulation of cytokine production. The alkaloids may interact with multiple cellular targets, but the primary anticancer mechanism is topoisomerase I poisoning.