HORMONAL REQUIREMENTS FOR THE INDUCTION OF CYTOCHROME-P450 IN HEPATOCYTES CULTURED IN A SERUM-FREE MEDIUM

被引:81
作者
SINCLAIR, JF
SINCLAIR, PR
BONKOWSKY, HL
机构
[1] DARTMOUTH COLL,SCH MED,DEPT MED,HANOVER,NH 03755
[2] DARTMOUTH COLL,SCH MED,DEPT BIOCHEM,HANOVER,NH 03755
基金
美国国家卫生研究院;
关键词
D O I
10.1016/0006-291X(79)91771-6
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Drug mediated induction of cytochrome P450 was studied in cultures of hepatocytes that had never been cultured in the presence of serum. Propylisopropylacetamide induced a five-fold increase in cytochrome P450, approximating in ovo induced levels, when triiodothyronine and/or dexamethasone were included in the culture medium. Insulin was apparently not required for this induction. Cytochrome P450, free of cytochrome oxidase, could be fully recovered from cell homogenates in a 8700g supernatant, by use of a buffer containing 0.2% Emulgen. © 1979.
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页码:710 / 717
页数:8
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