Charcot-Marie-Tooth causing HSPB1 mutations increase Cdk5-mediated phosphorylation of neurofilaments.
Charcot-Marie-Tooth causing HSPB1 mutations increase Cdk5-mediated phosphorylation of neurofilaments.
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DOI:
10.1007/s00401-013-1133-6
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发表时间:
2013-07
影响因子:
12.7
通讯作者:
Timmerman V
中科院分区:
文献类型:
--
作者:
Holmgren A;Bouhy D;De Winter V;Asselbergh B;Timmermans JP;Irobi J;Timmerman V
Mutations in the small heat shock protein HSPB1 (HSP27) are a cause of axonal Charcot–Marie–Tooth neuropathy (CMT2F) and distal hereditary motor neuropathy. To better understand the effect of mutations in HSPB1 on the neuronal cytoskeleton, we stably transduced neuronal cells with wild-type and mutant HSPB1 and investigated axonal transport of neurofilaments (NFs). We observed that mutant HSPB1 affected the binding of NFs to the anterograde motor protein kinesin, reducing anterograde transport of NFs. These deficits were associated with an increased phosphorylation of NFs and cyclin-dependent kinase Cdk5. As Cdk5 mediates NF phosphorylation, inhibition of Cdk5/p35 restored NF phosphorylation level, as well as NF binding to kinesin in mutant HSPB1 neuronal cells. Altogether, we demonstrate that HSPB1 mutations induce hyperphosphorylation of NFs through Cdk5 and reduce anterograde transport of NFs. The online version of this article (doi:10.1007/s00401-013-1133-6) contains supplementary material, which is available to authorized users.
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DOI:
10.1083/jcb.200303138
发表时间:
2003-05-12
期刊:
The Journal of cell biology
影响因子:
--
作者:
Ackerley S;Thornhill P;Grierson AJ;Brownlees J;Anderton BH;Leigh PN;Shaw CE;Miller CC
通讯作者:
Miller CC
DOI:
10.1074/jbc.m109.082644
发表时间:
2010-04-23
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Almeida-Souza L;Goethals S;de Winter V;Dierick I;Gallardo R;Van Durme J;Irobi J;Gettemans J;Rousseau F;Schymkowitz J;Timmerman V;Janssens S
通讯作者:
Janssens S
影响因子:
4
作者:
Chan, WKH;Dickerson, A;Shea, TB
通讯作者:
Shea, TB
影响因子:
5.8
作者:
Brettschneider, J;Petzold, A;Tumani, H
通讯作者:
Tumani, H
影响因子:
10.5
作者:
Chang, YH;Östling, P;Mezger, V
通讯作者:
Mezger, V