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溶酶体抑制剂对猫肝细胞单层中蛋白质降解的影响。

The effect of lysosomal inhibitors on protein degradation in cat hepatocyte monolayers.

作者信息

Silva S V, Mercer J R

机构信息

Department of Pathology, Ontario Veterinary College, University of Guelph, Canada.

出版信息

Int J Biochem. 1991;23(5-6):525-9. doi: 10.1016/0020-711x(87)90044-9.

DOI:10.1016/0020-711x(87)90044-9
PMID:2065814
Abstract
  1. Isolated cat liver cells were established in monolayer culture and intracellular proteins were labelled for 20 hr with L-[4,5-3H]leucine. 2. The known intralysosomal protein degradation inhibitors such as NH4Cl, leupeptin, cycloheximide and insulin were all effective in decreasing the rate of proteolysis in cat hepatocytes. However, the maximum inhibitory effects of these agents were generally lower when compared to the rat. 3. These results indicated a smaller contribution of the lysosomal pathway towards overall protein degradation in cat liver.
摘要
  1. 将分离的猫肝细胞进行单层培养,并用L-[4,5-³H]亮氨酸对细胞内蛋白质进行20小时的标记。2. 已知的溶酶体内蛋白质降解抑制剂,如氯化铵、亮抑酶肽、环己酰亚胺和胰岛素,均能有效降低猫肝细胞中的蛋白水解速率。然而,与大鼠相比,这些药物的最大抑制作用通常较低。3. 这些结果表明,溶酶体途径对猫肝脏整体蛋白质降解的贡献较小。

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The effect of lysosomal inhibitors on protein degradation in cat hepatocyte monolayers.溶酶体抑制剂对猫肝细胞单层中蛋白质降解的影响。
Int J Biochem. 1991;23(5-6):525-9. doi: 10.1016/0020-711x(87)90044-9.
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Effects of lysosomal inhibitors on 125I-insulin and 125I-asialofetuin degradation by the isolated, perfused rat liver and isolated rat hepatocytes.溶酶体抑制剂对分离的灌注大鼠肝脏和分离的大鼠肝细胞降解125I-胰岛素及125I-去唾液酸胎球蛋白的影响。
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The regulation of proteolysis in normal fibroblasts as they approach confluence. Evidence for the participation of the lysosomal system.正常成纤维细胞接近汇合时蛋白水解的调控。溶酶体系统参与的证据。
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Protein degradation in hepatocyte monolayers. Effects of glucagon, adenosine 3':5'-cyclic monophosphate and insulin.肝细胞单层中的蛋白质降解。胰高血糖素、3':5'-环磷酸腺苷和胰岛素的作用。
Biochem J. 1980 Jan 15;186(1):71-9. doi: 10.1042/bj1860071.
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Degradation of insulin by human fibroblasts: effects of inhibitors of pinocytosis and lysosomal activity.人成纤维细胞对胰岛素的降解:胞饮作用和溶酶体活性抑制剂的影响。
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Response of autophagic protein degradation to physiologic and pathologic stimuli in rat hepatocyte monolayer cultures.大鼠肝细胞单层培养中自噬性蛋白质降解对生理和病理刺激的反应
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Role of microtubuli in the lysosomal degradation of endogenous and exogenous protein in isolated rat hepatocytes.微管在分离的大鼠肝细胞内源性和外源性蛋白质溶酶体降解中的作用。
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Mechanisms of protein turnover in cultured fibroblasts. Differential inhibition of two lysosomal mechanisms with insulin and NH4Cl.培养的成纤维细胞中蛋白质周转的机制。胰岛素和氯化铵对两种溶酶体机制的差异抑制作用。
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The effect of protease inhibitors and decreased temperature on the degradation of different classes of proteins in cultured hepatocytes.蛋白酶抑制剂和温度降低对培养肝细胞中不同种类蛋白质降解的影响。
J Cell Physiol. 1979 Dec;101(3):439-57. doi: 10.1002/jcp.1041010311.

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