Zosuquidar trihydrochloride;唑喹达三盐酸盐;RS 33295-198 trihydrochloride;LY-335979 trihydrochloride-abs813246

一、产品概述

二、产品信息

LY335979 competitively inhibits equilibrium binding of vinblastine to Pgp by blocking azidopine photoaffinity labeling of the Pgp in CEM/VLB100 plasma membranes. LY335979 alone shows the cytotoxicity to drug-sensitive and MDR cell lines with IC50 ranging from 6 μM-16 μM and produces its ability to completely reverse the resistance of the oncolytics (vinblastine, doxorubicin, or etoposide) to the MDR cell lines P388/ADR, MCF7/ADR, 2780AD, or UCLA-P3.003VLB at concentration of 0.1 and 0.5 μM. LY335979 significantly restores drug sensitivity in P-gp-expressing leukemia cell lines including K562/HHT40, K562/HHT90, K562/DOX and HL60/DNR, and enhances the cytotoxicity of anthracyclines (daunorubicin, idarubicin, mitoxantrone) and gemtuzumab ozogamicin (Mylotarg) in primary AML blasts with active P-gp. A latest paper indicates that LY335979 completely inhibits apically directed transport of (Z)-endoxifen in the ABCB1-transduced cells.

Zosuquidar trihydrochloride is only moderately active as an inhibitor of P-gp at the blood-brain. An oral dose of 25 mg/kg of zosuquidar trihydrochloride increases the brain concentrations by about 2.5-fold at 1 h and 5-fold at 24 h after paclitaxel administrationbarrier. Zosuquidar enhances the brain uptake of nelfinavir in a dose-dependent manner. Brain tissue/plasma nelfinavir concentration ratios increase from 0.06±0.03 in the absence of zosuquidar administration and 0.09±0.02 between 2 and 6 h after a 2 mg/kg intravenous dose of zosuquidar to 0.85±0.19 after 6h and 1.58±0.67 after 20 mg/kg zosuquidar.

三、背景

四、制备和贮存

五、产品特点

六、注意事项