Development of a novel in vitro model to predict hepatic clearance using fresh, cryopreserved, and sandwich-cultured hepatocytes

被引:107
作者
Lau, YY [1 ]
Sapidou, E [1 ]
Cui, XM [1 ]
White, RE [1 ]
Cheng, KC [1 ]
机构
[1] Schering Plough Res Inst, Kenilworth, NJ 07033 USA
关键词
D O I
10.1124/dmd.30.12.1446
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Sixty-four compounds with diverse structures were used in evaluation of intrinsic clearance by various hepatocyte preparations from rats, dogs, monkeys, and humans. Intrinsic clearance (CLint) was calculated from the ratio of the initial amount of the test compound minus the amount remaining after 2 h of incubation and the corresponding area under the concentration versus time curve. The predictive potential of this in vitro model was tested by comparing the intrinsic clearance with in vivo clearance using linear regression analysis. In addition, the intrinsic clearance values obtained from three different types of hepatocytes (cryopreserved, fresh, and sandwich-cultured) from the same species were compared to determine the influence of preservation and culture conditions. It seems that intrinsic clearance determined from human cryopreserved hepatocyte (R-2 = 0.87) was the best predictor for the corresponding human in vivo clearance. Dog and rat hepatocyte clearances were also demonstrated to be reasonable predictors (R-2 ranged 0.68-0.85 in dogs and 0.65-0.72 in rats) for their corresponding in vivo clearances. Monkey hepatocyte clearance seems to be the worst predictor for the corresponding in vivo clearance (R-2 = 0.35-0.67). Comparison of intrinsic clearance generated from cryopreserved and fresh hepatocytes demonstrated a very good correlation in dog (R-2 = 0.82) followed by rat (R-2 = 0.77), and then by monkey (R-2 = 0.70). A similar correlation profile was shown between cryopreserved hepatocytes and sandwich-cultured hepatocytes. These results demonstrated the predictive potential of intrinsic clearance for rat, dog, and human in vivo clearance, but also showed some limitation of the approach for monkey.
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收藏
页码:1446 / 1454
页数:9
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