5 rezultatet
10-Hydroxycamptothecin (HCPT) loaded nanoparticles made from poly(caprolactone-co-lactide)-b-PEG-b-poly(caprolactone-co-lactide) (PCLLA-PEG-PCLLA) block copolymer, were prepared by a novel two-step nanoprecipitation method using an interior-chemistry strategy. The satisfactory drug loading content
The topoisomerase I inhibitor 9-dimethylaminomethyl-10-hydroxycamptothecin (topotecan) was evaluated against a panel of xenografts comprising four lines of adult colon adenocarcinoma, three colon tumors derived from adolescents, six childhood rhabdomyosarcomas from previously untreated patients as
Irinotecan is a promising anticancer agent for the treatment of childhood cancer unresponsive to conventional chemotherapy. Its active metabolite, 7-ethyl-10 hydroxycamptothecin (SN-38) is glucuronidated by a uridine-diphosphoglucuronosyltransferase (UGT1A1) to form an inactive metabolite. It was
In an effort to improve the stability of labile lactone ring of camptothecins, the bis and mono-alkyl carbonate prodrugs of 10-hydroxycamptothecins were synthesized and their chemical and enzymatical stability as well as antitumor activity were studied. The in vitro evaluation of the stability of
OBJECTIVE
To study the relationship between the lactone forms of 10-hydroxycamptothecin (HCPT) and their antitumor activities.
METHODS
Antitumor activity of the two forms of HCPT was studied in vitro using seven cultured human and mouse tumor cell lines. Mice bearing sarcoma 180 and solid hepatoma