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CAS号:121584-18-7
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英文名称:Valspodar
分子式
C63H111N11O12
分子量
1215
EINECS号
1312995-182-4
MDL
MFCD00907207
Smiles
InChIKey
乙二醇化学百科
基本信息
物化性质
安全信息
生产及用途
Valspodar (PSC 833) 是一种选择性的 P-糖蛋白抑制剂,已被用作化学增敏剂用于实验性癌症的研究。 Valspodar (PSC 833) has no cytotoxicity effects at up to the concentration of 0.75 μg/mL. Valspodar (0.25, 0.5 and 0.75 μg/mL) and DOX-L are added to the DOX resistant cells, and cell kill efficacy of MDR cell type increases significantly when valspodar is administered alongside DOX-L. Valspodar (0.5 and 0.75 μg/mL), in combination with all concentrations of DOX, are most toxic and kill more than 70% of the resistant cells. Pretreatment with PSC833 decreases the IC 50 value of NSC 279836 in MDA-MB-435mdr cells to 0.4±0.02 μM in MDR cells and almost completely reverses the resistance of MDR cells to NSC 279836.
valspodar (10 mg/kg, o.p.) exhibits minimal blood-cell partitioning as reflected in its low mean blood-to-plasma ratio of approximately 0.52. Valspodar displays properties of slow clearance and a large volume of distribution. Valspodar shows properties of low hepatic extraction and wide distribution, similar to that of its structural analogue CsA. Preadministration of PSC833 to mice increases NSC 279836 fluorescent intensity in MDR tumor to 94% of that in the wild-type tumors.
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