Roles and regulation of Thy-1, a context-dependent modulator of cell phenotype.

Roles and regulation of Thy-1, a context-dependent modulator of cell phenotype.
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DOI:
10.1002/biof.41
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发表时间:
2009-05
期刊:
BioFactors (Oxford, England)
影响因子:
--
通讯作者:
Hagood JS
Hagood JS
中科院分区:
其他
文献类型:
--
作者:
Bradley JE;Ramirez G;Hagood JS

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Thy-1(或 CD90)是一种糖磷脂酰肌醇连接的糖蛋白,表达于神经元、胸腺细胞、成纤维细胞亚群、内皮细胞、系膜细胞和一些造血细胞的表面。 Thy-1 在进化上是保守的,在发育上受到调节,并且常常对细胞表型产生巨大的影响;然而,影响在细胞类型和组织之间以及在某些情况下在细胞类型和组织内以及不同物种的相似组织之间存在差异,这表明 Thy-1 的生物学作用是依赖于环境的。 Thy-1 以可溶形式存在于某些体液中;然而其脱落的机制尚不清楚。此外,Thy-1的表达可以通过表观遗传沉默来调节。由于 Thy-1 调节许多基本细胞过程并参与许多疾病的发病机制,因此更好地了解其调节非常重要。
Thy-1, or CD90, is a glycophosphatidylinositol-linked glycoprotein expressed on the surface of neurons, thymocytes, subsets of fibroblasts, endothelial cells, mesangial cells and some hematopoietic cells. Thy-1 is evolutionarily conserved, developmentally regulated, and often has dramatic effects on cell phenotype; however the effects vary between and in some cases within cell types and tissues, and between similar tissues in different species, indicating that the biological role of Thy-1 is context-dependent. Thy-1 exists in soluble form in some body fluids; however the mechanisms of its shedding are unknown. In addition, Thy-1 expression can be regulated by epigenetic silencing. Because Thy-1 modulates many basic cellular processes and is involved in the pathogenesis of a number of diseases, it is important to better understand its regulation.
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