Camptothecin drug
WebDesign, synthesis, and biological evaluation of novel 7-substituted 10,11-methylenedioxy-camptothecin derivatives against drug-resistant small-cell lung cancer in vitro and in vivo Authors Guorui Zhang 1 , Ruijuan Yin 2 , Xiufei Dai 1 , Guanzhao Wu 3 , Xin Qi 1 , Rilei Yu 2 , Jing Li 4 , Tao Jiang 5 Affiliations WebHerein, we fabricated a novel amphiphilic lactose-camptothecin prodrug molecular Lac-SS-CPT which can self-assemble into Lac-SS-CPT glyco-nano prodrug system for GSH …
Camptothecin drug
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WebOct 14, 2024 · Poly ADP-ribose polymerase (PARP) is a marker protein of apoptosis. Interestingly, when the compounds were co-treated with the anticancer agent, camptothecin (CPT), in a low concentration, 1a (20 μM) could visibly trigger the cleavage of PARP combined with CPT (50 nM), while there was no PARP cleavage when treated … WebHerein, we demonstrated a general approach by repurposing camptothecin (CPT) species. Commonly used inactive ingredients in pharmaceuticals are investigated and selected as a bonding moiety, from which 2-mercaptoethoxy ethanol and thioglycerol were efficiently incorporated with CPT to give the precursors.
WebCAMPTOTHECIN chembl:CHEMBL65 Antineoplastic Alternate Names: Drug Info: ChemblDrugs DTC TdgClinicalTrial ClearityFoundationClinicalTrial (3 More Sources) Publications: Costa-Pereira et al., 2000, Activation of SAPK/JNK by camptothecin sensitizes androgen-independent prostate cancer cells to Fas-induced apoptosis., Br. J. … 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 … See more CPT has a planar pentacyclic ring structure, that includes a pyrrolo[3,4-β]-quinoline moiety (rings A, B and C), conjugated pyridone moiety (ring D) and one chiral center at position 20 within the alpha-hydroxy See more The lactone ring in CPT is highly susceptible to hydrolysis. The open ring form is inactive and it must therefore be closed to inhibit topoisomerase I. The closed form is favored in acidic condition, as it is in many cancer cells microenvironment. … See more Like all other monoterpenoid indole-alkaloids, biosynthesis of camptothecin requires production of the strictosidine. Strictosidine is synthesized through condensation … See more CPT binds to the topoisomerase I and DNA complex (the covalent complex) resulting in a ternary complex, and thereby stabilizing it. This prevents DNA re-ligation and therefore causes DNA damage which results in apoptosis. CPT binds both to the enzyme and DNA with See more Studies have shown that substitution at position 7, 9, 10 and 11 can have positive effect on CPT activity and physical properties, e.g. potency and metabolic stability. Enlargement of the lactone ring by one CH 2 unit also enhances its abilities, as in … See more
WebHerein, we fabricated a novel amphiphilic lactose-camptothecin prodrug molecular Lac-SS-CPT which can self-assemble into Lac-SS-CPT glyco-nano prodrug system for GSH responsive and targeted drug co-delivery due to the existence of disulfide bond and lactose. 41–44 Then, the CPT-based glyco-nano prodrug system further provides a suitable ... WebCamptosar is an anti-cancer ("antineoplastic" or "cytotoxic") chemotherapy drug. Camptosar is classified as a "plant alkaloid" and "topoisomerase I inhibitor." (For more detail, see …
WebNov 25, 2014 · Camptothecin-polylactide conjugates (CMPT-PLA) were synthesized by covalent incorporation of CMPT into PLA of different microstructure, i.e., atactic PLA and atactic-block-isotactically enriched PLA (Pm = 0.79) via urethane bonds. The kinetic release of CPMT from CMPT-PLA conjugates, tested in vitro under different conditions, is …
Web2 days ago · The Camptothecin Market report is a comprehensive document that presents valuable insights on the industry's competitors, including [SM herbals, HAOXUAN, … pop3 tcp or udpWebApr 13, 2024 · Irinotecan (SN-38) is a potent and broad-spectrum anticancer drug that targets DNA topoisomerase I (Top1). It exerts its cytotoxic effects by binding to the Top1-DNA complex and preventing the re-ligation of the DNA strand, leading to the formation of lethal DNA breaks. Following the initial response to irinotecan, secondary resistance is … pop3 settings for yahoo mailWebCamptothecin (I) [7689-03-4], a cytotoxic drug, is a strong inhibitor of nucleic acid synthesis in mammalian cells and a potent inducer of strand breaks in … sharepoint api get file by idWebBackground: Poly (lactic- co -glycolic acid) (PLGA) has emerged as a promising anticancer drug delivery scaffold. Camptothecin (CPT) has been fabricated into a variety of nano-sized formulations to improve drug action. We report an experimental study on the effect of CPT-encapsulated PLGA (PLGA-CPT) nanoparticles (NPs) on drug-metabolizing ... sharepoint a newer version is availableWebFeb 6, 2024 · Numerous attempts to overcome the poor water solubility of cam ptothecin (CPT) by various nano drug delivery systems are described in various sources in the … sharepoint ansicht filterWebSep 6, 2024 · Antibody-drug conjugates (ADCs) that incorporate the exatecan derivative DXd in their payload are showing promising clinical results in solid … sharepoint api filter by categoryWebNov 1, 2024 · The isolation and structure of camptothecin, a novel alkaloidal leukemia and tumor inhibitor from Camptotheca acuminata. J Am Chem Soc. 1966; 88: 3888–90. CrossRef Google Scholar 2. ↵ Hsiang YH , Hertzberg R , Hecht S , Liu LF. Camptothecin induces protein-linked DNA breaks via mammalian DNA topoisomerase I. J Biol Chem. … pop3 t-online