The full-length isoform of the mouse pleckstrin homology domain-interacting protein (PHIP) is required for postnatal growth.
The full-length isoform of the mouse pleckstrin homology domain-interacting protein (PHIP) is required for postnatal growth.
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DOI:
10.1016/j.febslet.2010.08.042
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发表时间:
2010-09-24
期刊:
影响因子:
3.5
通讯作者:
Long Q
中科院分区:
文献类型:
--
作者:
Li S;Francisco AB;Han C;Pattabiraman S;Foote MR;Giesy SL;Wang C;Schimenti JC;Boisclair YR;Long Q
PHIP was isolated as an insulin receptor substrate 1 (IRS-1) interacting protein. To date, the physiological roles of PHIP remain unknown. Here we show that mice lacking PHIP1, the full-length isoform of PHIP, are born at normal size but suffer a 40% growth deficit by weaning. PHIP1 mutant mice develop hypoglycemia and have an average lifespan of 4 to 5 weeks. PHIP1-deficient mouse embryonic fibroblasts (MEFs) grow markedly slower than wild-type MEFs, but exhibit normal AKT phosphorylation and an increased cell proliferation in response to IGF-1 treatment. Together these results suggest that PHIP1 regulates postnatal growth in an IGF-1/AKT pathway-independent manner.
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影响因子:
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通讯作者:
Rozakis-Adcock, Maria
影响因子:
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通讯作者:
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通讯作者:
EFSTRATIADIS, A
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