The protein phosphatase activity of PTEN is essential for regulating neural stem cell differentiation.
The protein phosphatase activity of PTEN is essential for regulating neural stem cell differentiation.
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PTEN 的蛋白磷酸酶活性对于调节神经干细胞分化至关重要
DOI:
10.1186/s13041-015-0114-1
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发表时间:
2015-04-18
期刊:
影响因子:
3.6
通讯作者:
Zhou W
中科院分区:
文献类型:
--
作者:
Lyu J;Yu X;He L;Cheng T;Zhou J;Cheng C;Chen Z;Cheng G;Qiu Z;Zhou W
BackgroundThe tumor suppressor gene Phosphatase and tensin homolog (PTEN) is highly expressed in neural progenitor cells (NPCs) and plays an important role in development of the central nervous system. As a dual-specificity phosphatase, the loss of PTEN phosphatase activity has been linked to various diseases.ResultsHere we report that the protein phosphatase activity ofPtenis critical for regulating differentiation of neural progenitor cells. First we found that deletion ofPtenpromotes neuronal differentiation. To determine whether the protein or lipid phosphatase activity is required for regulating neuronal differentiation, we generated phosphatase domain-specificPtenmutations. Interestingly, only expression of protein phosphatase-deficient mutant Y138L could mimic the effect of knocking downPten, suggesting the protein phosphatase ofPtenis critical for regulating NPC differentiation. Importantly, we showed that the wild-type and lipid phosphatase mutant (G129E) forms ofPtenare able to rescue neuronal differentiation inPtenknockout NPCs, but mutants containing protein phosphatase mutant cannot. We further found thatPten-dependent dephosphorylation of CREB is critical for neuronal differentiation.ConclusionOur data indicate that the protein phosphatase activity of PTEN is critical for regulating differentiation of NSCs during cortical development.
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影响因子:
64.5
作者:
Bonaguidi MA;Wheeler MA;Shapiro JS;Stadel RP;Sun GJ;Ming GL;Song H
通讯作者:
Song H
DOI:
10.1042/bj20120098
发表时间:
2012-06-15
期刊:
The Biochemical journal
影响因子:
--
作者:
Zhang XC;Piccini A;Myers MP;Van Aelst L;Tonks NK
通讯作者:
Tonks NK
DOI:
10.1073/pnas.95.23.13513
发表时间:
1998-11-10
影响因子:
11.1
作者:
Myers, MP;Pass, I;Tonks, NK
通讯作者:
Tonks, NK
影响因子:
5.3
作者:
Amiri, Anahita;Cho, Woosung;Parada, Luis F.
通讯作者:
Parada, Luis F.
DOI:
10.1523/jneurosci.3095-08.2009
发表时间:
2009-02-11
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Gregorian C;Nakashima J;Le Belle J;Ohab J;Kim R;Liu A;Smith KB;Groszer M;Garcia AD;Sofroniew MV;Carmichael ST;Kornblum HI;Liu X;Wu H
通讯作者:
Wu H