Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Aminocamptothecin"'
Publikováno v:
AAPS PharmSciTech. 15:223-229
The present manuscript provides a detailed physicochemical and thermodynamic characterization of 9-aminocamptothecin (9AC) which can be used as a tool to develop novel formulation strategies for optimum pharmacological activity. The pKa of 9AC was de
Publikováno v:
European Journal of Pharmaceutical Sciences. 49:858-863
As a first step towards improving the aqueous stability of 9-aminocamptothecin (9AC), a detailed kinetic and thermodynamic investigation of the hydrolysis reaction of 9AC was carried out, using a first derivative absorption spectrophotometry techniqu
Publikováno v:
Pharmaceutical Research. 25:218-226
To quantitate and predict colon-specific 9-aminocamptothecin (9-AC) release from the N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer-9-AC conjugate and its absorption behavior after oral administration in rats.Drug distribution in the gastrointest
Publikováno v:
Journal of Controlled Release. 117:179-185
A water soluble N -(2-hydroxypropyl)methacrylamide (HPMA) copolymer–9-aminocamptothecin (9-AC) conjugate was designed for oral colon-specific drug delivery in the treatment of colon cancer. Comparative studies between the polymer conjugate and free
Autor:
Ramesh K. Ramanathan, Merrill J. Egorin, Lauren J. Maruca, William C. Zamboni, Robert A. Parise, Sharon Marsh, Sandra Strychor, Todd A. Davis, Howard L. McLeod, Laura L. Jung, Sridhar Mani, Cristi R. King, Douglas M. Potter
Publikováno v:
Investigational New Drugs. 24:393-401
Purpose: The source of the pharmacokinetic variability of 9-nitrocamptothecin (9NC) and its 9-aminocamptothecin (9AC) metabolite is unknown. ATP-binding cassette (ABC) transporters have been reported to modulate camptothecin analogues, are associated
Publikováno v:
Molecular Cancer Therapeutics. 5:739-745
The topoisomerase I (top1)–targeted camptothecin class of anticancer drugs is important in the treatment of several types of cancers. This class of drug inhibits the top1 enzyme during its catalytic DNA relaxation cycle, stabilizing the transient c
Autor:
Rebecca R. Thomas, Chris H. Takimoto
Publikováno v:
Annals of the New York Academy of Sciences. 922:224-236
9-Aminocamptothecin (9-AC) is a topoisomerase I-targeting agent first synthesized by Wani and Wall in 1986. Because of its potent in vitro effects and promising preclinical activity in colorectal cancer animal models, it was designated a high-priorit
Autor:
Andrea Downey, Joan Sorich, Heather Wasserstrom, Milan Potmesil, Howard S. Hochster, Leonard Liebes, Gila Hornreich, Franco M. Muggia, Anne Hamilton
Publikováno v:
Annals of the New York Academy of Sciences. 922:178-187
The i.p. administration of topoisomerase I (Topo I) inhibitors has a pharmacologic advantage over intravenous application, including preservation of the biologically active lactone form. In our ongoing study, patients have received 9-amino-20(S)-camp
Publikováno v:
Journal of Controlled Release. 110:323-331
N-(2-Hydroxypropyl)methacrylamide (HPMA) copolymer–9-aminocamptothecin (9-AC) conjugate for oral colon-specific drug delivery was designed, synthesized, and characterized. The drug, 9-AC, was attached to the polymer carrier via a spacer containing
Autor:
Robert A. Parise, Merrill J. Egorin, Sridhar Mani, Tahir Iqbal, Trisha V. W. Repinski, William C. Zamboni, Sanjay Goel, Sandra Strychor
Publikováno v:
Cancer Chemotherapy and Pharmacology. 57:631-639
9-Nitrocamptothecin (9NC) is an orally administered camptothecin analogue that has completed phase III trials for pancreatic cancer. In biological matrices, camptothecin analogues exist in equilibrium between the active-lactone (LAC) and inactive-hyd