Tumor necrosis factor-alpha and muscle wasting: a cellular perspective.

Tumor necrosis factor-alpha and muscle wasting: a cellular perspective.
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DOI:
10.1186/rr67
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发表时间:
2001
影响因子:
5.8
通讯作者:
Li YP
Li YP
中科院分区:
医学2区
文献类型:
--
作者:
Reid MB;Li YP

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肿瘤坏死因子-α(TNF-α)是一种多肽类细胞因子,与炎症性疾病中的肌肉萎缩和无力有关。尽管TNF-α在肌肉病理学中具有潜在的重要性,但其对骨骼肌的直接影响直到最近才得到明确。对培养的肌细胞的研究表明,TNF-α破坏了分化过程,并可促进成熟细胞的分化。后一种反应似乎是由活性氧和核因子-κB介导的,核因子-κB上调泛素/蛋白酶体活性。本文综述了TNF-α对骨骼肌的作用及其作用机制。
Tumor necrosis factor-α (TNF-α) is a polypeptide cytokine that has been associated with muscle wasting and weakness in inflammatory disease. Despite its potential importance in muscle pathology, the direct effects of TNF-α on skeletal muscle have remained undefined until recently. Studies of cultured muscle cells indicate that TNF-α disrupts the differentiation process and can promote catabolism in mature cells. The latter response appears to be mediated by reactive oxygen species and nuclear factor-κB which upregulate ubiquitin/proteasome activity. This commentary outlines our current understanding of TNF-α effects on skeletal muscle and the mechanism of TNF-α action.
DOI: 10.1089/ars.1999.1.1-97
发表时间: 1999-03-01
影响因子: 6.6
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