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PMID |
Sentence |
1 |
22194892
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Nephrin regulates lamellipodia formation by assembling a protein complex that includes Ship2, filamin and lamellipodin.
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2 |
22194892
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Upon activation Nephrin recruits and regulates a protein complex that includes Ship2 (SH2 domain containing 5' inositol phosphatase), Filamin and Lamellipodin, proteins important in regulation of actin and focal adhesion dynamics, as well as lamellipodia formation.
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3 |
22194892
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Using the previously described CD16-Nephrin clustering system, Nephrin ligation or activation resulted in phosphorylation of the actin crosslinking protein Filamin in a p21 activated kinase dependent manner.
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4 |
22194892
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In the CD16-Nephrin clustering model, Nephrin ligation resulted in abnormal morphology of actin tails in human podocytes when Ship2, Filamin or Lamellipodin were individually knocked down.
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5 |
26510503
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Angiotensin II down-regulates nephrin-Akt signaling and induces podocyte injury: roleof c-Abl.
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6 |
26510503
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Recent studies have shown that nephrin plays a vital role in angiotensin II (Ang II)-induced podocyte injury and thus contributes to the onset of proteinuria and the progression of renal diseases, but its specific mechanism remains unclear. c-Abl is an SH2/SH3 domain-containing nonreceptor tyrosine kinase that is involved in cell survival and regulation of the cytoskeleton.
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7 |
26510503
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Phosphorylated nephrin is able to interact with molecules containing SH2/SH3 domains, suggesting that c-Abl may be a downstream molecule of nephrin signaling.
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8 |
26510503
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Here we report that Ang II-infused rats developed proteinuria and podocyte damage accompanied by nephrin dephosphorylation and minimal interaction between nephrin and c-Abl.
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9 |
26510503
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In vitro, Ang II induced podocyte injury and nephrin and Akt dephosphorylation, which occurred in tandem with minimal interaction between nephrin and c-Abl.
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10 |
26510503
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Moreover, Ang II promoted c-Abl phosphorylation and interaction between c-Abl and SH2 domain-containing 5'-inositol phosphatase 2 (SHIP2). c-Abl small interfering RNA (siRNA) and STI571 (c-Abl inhibitor) provided protection against Ang II-induced podocyte injury, suppressed the Ang II-induced c-Abl-SHIP2 interaction and SHIP2 phosphorylation, and maintained a stable level of nephrin phosphorylation.
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11 |
26510503
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These results indicate that c-Abl is a molecular chaperone of nephrin signaling and the SHIP2-Akt pathway and that the released c-Abl contributes to Ang II-induced podocyte injury.
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