Definitions for camptothecin
camp·tothecin

WiktionaryRate this definition:0.0 / 0 votes

1. camptothecinnoun

   An alkaloid, derived from the tree Camptothecin acuminate, that inhibits DNA topomerase and is used as an anticancer drug

WikipediaRate this definition:0.0 / 0 votes

1. Camptothecin

   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. It has been used clinically more recently in China for the treatment of gastrointestinal tumors. CPT showed anticancer activity in preliminary clinical trials, especially against breast, ovarian, colon, lung, and stomach cancers. However, it has low solubility and adverse effects have been reported when used therapeutically, so synthetic and medicinal chemists have developed numerous syntheses of camptothecin and various derivatives to increase the benefits of the chemical, with good results. Four CPT analogues have been approved and are used in cancer chemotherapy today, topotecan, irinotecan, belotecan, and trastuzumab deruxtecan. Camptothecin has also been found in other plants including Chonemorpha fragrans.

WikidataRate this definition:0.0 / 0 votes

1. Camptothecin

   Camptothecin is a cytotoxic quinoline alkaloid which inhibits the DNA enzyme topoisomerase I. 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, a tree native to China used as a cancer treatment in Traditional Chinese Medicine. CPT showed remarkable anticancer activity in preliminary clinical trials but also low solubility and adverse drug reaction. Because of these disadvantages synthetic and medicinal chemists have developed numerous syntheses of Camptothecin and various derivatives to increase the benefits of the chemical, with good results. Two CPT analogues have been approved and are used in cancer chemotherapy today, topotecan and irinotecan.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Camptothecin

   An alkaloid isolated from the stem wood of the Chinese tree, Camptotheca acuminata. This compound selectively inhibits the nuclear enzyme DNA TOPOISOMERASES, TYPE I. Several semisynthetic analogs of camptothecin have demonstrated antitumor activity.

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Numerology

1. Chaldean Numerology

   The numerical value of camptothecin in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of camptothecin in Pythagorean Numerology is: 1

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References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Camptothecin
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Camptothecin
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=camptothecin