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丙烯腈与大鼠肝脏蛋白质的体外共价结合。

In vitro covalent binding of acrylonitrile to rat liver proteins.

作者信息

Duverger-van Bogaert M, Lambotte-Vandepaer M, Mercier M, Poncelet F

出版信息

Toxicol Lett. 1982 Oct;13(3-4):203-9. doi: 10.1016/0378-4274(82)90213-2.

DOI:10.1016/0378-4274(82)90213-2
PMID:7147264
Abstract

The irreversible protein binding of [3-14C]acrylonitrile (ACN) was evaluated in the presence of microsomes, cytosolic and post-mitochondrial fractions of rat liver. Spontaneous binding was measured after incubation of ACN in the presence of the various liver fractions at 4 degrees C and 37 degrees C respectively and in a comparative study performed at 37 degrees C in the presence of S9 or bovine serum albumin (BSA). The effect of various inducers and inhibitors was investigated. A spontaneous binding resulting from a direct alkylation by ACN seemed to play an important role; however, binding resulting from the microsomal activation of ACN into reactive intermediate(s) was also detected.

摘要

在大鼠肝脏微粒体、胞质溶胶和线粒体后组分存在的情况下,评估了[3-14C]丙烯腈(ACN)的不可逆蛋白质结合。分别在4℃和37℃下,将ACN与各种肝脏组分一起孵育后,测量自发结合情况,并在37℃下存在S9或牛血清白蛋白(BSA)的情况下进行比较研究。研究了各种诱导剂和抑制剂的作用。由ACN直接烷基化导致的自发结合似乎起重要作用;然而,也检测到了ACN经微粒体激活形成反应性中间体所导致的结合。

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