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Extracts from Camptotheca (the "happy tree" or "cancer tree") were used to develop the chemotherapeutic drug Topotecan. Plant sources of anti-cancer agents are plants, the derivatives of which have been shown to be usable for the treatment or prevention of cancer in humans. [1] [2]
In the fields of medicine, biotechnology, and pharmacology, drug discovery is the process by which new candidate medications are discovered. [1]Historically, drugs were discovered by identifying the active ingredient from traditional remedies or by serendipitous discovery, as with penicillin.
Natural products sometimes have pharmacological activity that can be of therapeutic benefit in treating diseases. [96] [97] [98] Moreover, synthetic analogs of natural products with improved potency and safety can be prepared, and therefore, natural products are often used as starting points for drug discovery. Natural product constituents have ...
Camptothecin (CPT) is a topoisomerase inhibitor.It was discovered in 1966 by M. E. Wall and M. C. Wani in systematic screening of natural products for anticancer drugs.It was isolated from the bark and stem of Camptotheca acuminata (Camptotheca, Happy tree), a tree native to China used in traditional Chinese medicine.
With 79% of the Earth's surface covered by water, research into the chemistry of marine organisms is relatively unexplored and represents a vast resource for new medicines to combat major diseases such as cancer, AIDS or malaria. Research typically focuses on sessile organisms or slow moving animals because of their inherent need for chemical ...
1966 – Taxol, anti-cancer compound, isolated from the yew plant; 1967 – Camptothecin, anti-cancer compound, isolated from the Camptotheca acuminata, the Chinese Happy Tree, which was used as a cancer treatment in traditional Chinese medicine. [23] It is the source of chemotherapy drugs: topotecan and irinotecan.
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It is the only known source of artemisinin, a drug that has been used to treat fevers due to malaria, exhaustion, or many other causes, since ancient times. [14] Upon further study, scientists have found that Sweet Wormwood inhibits activity of various bacteria, viruses, and parasites and exhibits anti-cancer and anti-inflammatory properties.