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- W1982321749 abstract "The kidney podocyte is a terminally differentiated and highly specialized cell. The function of the glomerular filtration barrier depends on the integrity of the podocyte. Podocyte injury and loss have been observed in human and experimental models of glomerular diseases. Three major podocyte phenotypes have been described in glomerular diseases: effacement, apoptosis, and proliferation. Here, we highlight the signaling cascades that are responsible for the manifestation of these pathologic phenotypes. The integrity of the podocyte foot process is determined by the interaction of nephrin with proteins in the slit diaphragm complex, the regulation of actin dynamics by the Rho family of GTPases, and the transduction of extracellular signals through focal adhesion complexes. Activation of the p38 mitogen-activated protein kinase and transforming growth factor-beta1 causes podocyte apoptosis. Phosphoinositide 3-kinase and its downstream target AKT protect podocytes from apoptosis. In human immunodeficiency virus-associated nephropathy, Src-dependent activation of Stat3, mitogen-activated protein kinase 1,2, and hypoxia-inducible factor 2alpha is an important driver of podocyte proliferation. At the level of intracellular signaling, it appears that different extracellular signals can converge onto a few pathways to induce changes in the phenotype of podocytes." @default.
- W1982321749 created "2016-06-24" @default.
- W1982321749 creator A5021913849 @default.
- W1982321749 creator A5025947755 @default.
- W1982321749 date "2009-01-13" @default.
- W1982321749 modified "2023-10-10" @default.
- W1982321749 title "Signaling in Regulation of Podocyte Phenotypes" @default.
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- W1982321749 doi "https://doi.org/10.1159/000191075" @default.
- W1982321749 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2881215" @default.
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