PLD1 Negatively Regulates Dendritic Branching
PLD1 Negatively Regulates Dendritic Branching
复制标题
PLD1 负调控树突分支
DOI:
10.1523/jneurosci.5378-11.2012
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发表时间:
2012-06
影响因子:
5.3
通讯作者:
Wang, Yun
中科院分区:
文献类型:
--
作者:
Qi, Cai;Li, Gang;Yin, Dong-Min;Wang, Yun
Neurons have characteristic dendritic arborization patterns that contribute to information processing. One essential component of dendritic arborization is the formation of a specific number of branches. Although intracellular pathways promoting dendritic growth and branching are being elucidated, the mechanisms that negatively regulate the branching of dendrites remain enigmatic. In this study, using gain-of-function and loss-of-function studies, we show that phospholipase D1 (PLD1) acts as a negative regulator of dendritic branching in cultured hippocampal neurons from embryonic day 18 rat embryos. Overexpression of wild-type PLD1 (WT-PLD1) decreases the complexity of dendrites, whereas knockdown or inhibition of PLD1 increases dendritic branching. We further demonstrated that PLD1 acts downstream of RhoA, one of the small Rho GTPases, to suppress dendritic branching. The restriction of dendritic branching by constitutively active RhoA (V14-RhoA) can be partially rescued by knockdown of PLD1. Moreover, the inhibition of dendritic branching by V14-RhoA and WT-PLD1 can be partially ameliorated by reducing the level of phosphatidic acid (PA), which is the enzymatic product of PLD1. Together, these results suggest that RhoA-PLD1-PA may represent a novel signaling pathway in the restriction of dendritic branching and may thus provide insight into the mechanisms of dendritic morphogenesis.
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影响因子:
7.3
作者:
Elvers M;Stegner D;Hagedorn I;Kleinschnitz C;Braun A;Kuijpers ME;Boesl M;Chen Q;Heemskerk JW;Stoll G;Frohman MA;Nieswandt B
通讯作者:
Nieswandt B
影响因子:
3.3
作者:
Bach AS;Enjalbert S;Comunale F;Bodin S;Vitale N;Charrasse S;Gauthier-Rouvière C
通讯作者:
Gauthier-Rouvière C
DOI:
10.1126/science.1189664
发表时间:
2010-09-24
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Branco T;Clark BA;Häusser M
通讯作者:
Häusser M
DOI:
10.1083/jcb.138.3.495
发表时间:
1997-08-11
期刊:
The Journal of cell biology
影响因子:
--
作者:
Chen YG;Siddhanta A;Austin CD;Hammond SM;Sung TC;Frohman MA;Morris AJ;Shields D
通讯作者:
Shields D
影响因子:
16.2
作者:
Gidon, Albert;Segev, Idan
通讯作者:
Segev, Idan