Timothy syndrome is associated with activity-dependent dendritic retraction in rodent and human neurons.
Timothy syndrome is associated with activity-dependent dendritic retraction in rodent and human neurons.
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DOI:
10.1038/nn.3307
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发表时间:
2013-02
影响因子:
25
通讯作者:
Dolmetsch, Ricardo E.
中科院分区:
文献类型:
--
作者:
Krey, Jocelyn F.;Pasca, Sergiu P.;Shcheglovitov, Aleksandr;Yazawa, Masayuki;Schwemberger, Rachel;Rasmusson, Randall;Dolmetsch, Ricardo E.
L-type voltage gated calcium channels (LTCs) play an important role in neuronal development by promoting dendritic growth and arborization. A point mutation in CaV1.2 causes Timothy Syndrome (TS), a neurodevelopmental disorder associated with autism spectrum disorders (ASD). We report that channels with the TS mutation cause activity-dependent dendrite retraction in rodent neurons and in induced pluripotent stem cell (iPSCs)– derived neurons from individuals with TS. Dendrite retraction is independent of calcium permeation through the mutant channel, is associated with ectopic activation of RhoA and is inhibited by over-expression of the channel associated GTPase Gem. These results suggest that CaV1.2 can activate RhoA signaling independently of Ca2+ and provide novel insights into the cellular basis of TS and other ASDs.
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影响因子:
64.5
作者:
Dolmetsch R;Geschwind DH
通讯作者:
Geschwind DH
影响因子:
64.8
作者:
Béguin, P;Nagashima, K;Seino, S
通讯作者:
Seino, S
影响因子:
4
作者:
Lohmann, C;Wong, ROL
通讯作者:
Wong, ROL
DOI:
10.1073/pnas.1112667108
发表时间:
2011-09-13
影响因子:
11.1
作者:
Bader, Patrick L.;Faizi, Mehrdad;Shamloo, Mehrdad
通讯作者:
Shamloo, Mehrdad
影响因子:
4.8
作者:
Oyama, F;Kotliarova, S;Ihara, Y
通讯作者:
Ihara, Y