Biochemical mechanisms of induction of hepatic peroxisome proliferation.

Biochemical mechanisms of induction of hepatic peroxisome proliferation.
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诱导肝过氧化物酶体增殖的生化机制。

DOI:
--
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发表时间:
1989
影响因子:
12.5
通讯作者:
C. Elcombe
C. Elcombe
中科院分区:
医学1区
文献类型:
--
作者:
E. Lock;A. M. Mitchell;C. Elcombe

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外源性物质诱导哺乳动物肝细胞胞质细胞器(过氧化物酶体)增殖的过程受到了相当大的关注,因为在小鼠和大鼠中,过氧化氢产生过氧化物酶体酶的诱导与肝细胞癌的发生之间存在联系(1-6)。几种结构不同的降血脂药物、用作增塑剂的某些邻苯二甲酸酯和一些卤代烃溶剂是能够诱导肝细胞中过氧化物酶体增殖的重要化学品类别的示例(7-13)。这组不同的化学物质引起过氧化物酶的机制。尽管目前认为这些化学物质是致癌的,因为它们能够诱导过氧化物酶体增殖,但对它们与肝肿瘤的关系尚不清楚。对它们的反应存在明显的种属差异;某些种属,例如豚鼠和猴,对肝过氧化物酶体的诱导相对无反应或有抗性(1,2,4,6)。因此,有必要了解它们诱导过氧化物酶体增殖的机制,以帮助这些化学品对人类的安全性评价。本文从生物化学和形态学的角度简要介绍了肝细胞对过氧化物酶体增殖化学物质的反应,并重点介绍了这些化学物质引起过氧化物酶体增殖的可能生化机制。有关过氧化物酶体的更详细评论,
The process of xenobiotic-induced proliferation of the cytoplasmic organelle, the peroxisome, in mammalian liver cells has received considerable attention because of the proposed relationship between the induction of hydrogen peroxide producing peroxisomal enzymes and the development of hepa­ tocellular carcinomas in mice and rats (1-6). Several structurally dissimilar hypolipidemic drugs, certain phthalate esters used as plasticizers, and some halogenated hydrocarbon solvents are examples of important categories of chemicals that are capable of inducing proliferation of peroxisomes in hepato­ cytes (7-13). The mechanism by which this diverse group of chemicals causes peroxi­ some. proliferation and liver tumors is not understood, although it is currently thought that these chemicals are carcinogenic because of their ability to induce peroxisome proliferation. There are marked species diffcrcnces in response to them; certain species, e.g. guinea pigs and monkeys, are relative­ ly nonresponsive or resistant to the induction of hepatic peroxisomes (l, 2, 4, 6). It is therefore necessary to understand the mechanism by which they induce peroxisome proliferation to help in the safety evaluation of these chemicals to human beings. This review briefly discusses the response, in biochemical and morpholog­ ical terms, of hepatocytes to peroxisome proliferating chemicals and then focuses on possible biochemical mechanism(s) whereby these chemicals may produce peroxisome proliferation. For more detailed reviews on peroxisomes
降血脂药物 Wy-14,643 诱导过氧化物酶体和非过氧化物酶体蛋白的肝脏信使 RNA 种类发生可逆改变。
DOI: 10.1042/bj2140879
发表时间: 1983
期刊: The Biochemical journal
影响因子: --
作者:
Chatterjee,B;Demyan,WF;Lalwani,ND;Reddy,JK;Roy,AK
通讯作者: Roy,AK
大鼠肝脏蛋白质组成对过氧化物酶体增殖剂环丙贝特、Wy-14,643 和邻苯二甲酸二(2-乙基己基)酯的特异性变化。
DOI: 10.1042/bj2270767
发表时间: 1985
期刊: The Biochemical journal
影响因子: --
作者:
Watanabe,T;Lalwani,ND;Reddy,JK
通讯作者: Reddy,JK
DOI: --
发表时间: 1986
期刊: The American journal of pathology
影响因子: --
作者:
Rao,MS;Thorgeirsson,S;Reddy,MK;Lalwani,ND;Evarts,RE;Usman,MI;Singh,B;Reddy,JK
通讯作者: Reddy,JK