The antidepressant roles of Wnt2 and Wnt3 in stress-induced depression-like behaviors.
The antidepressant roles of Wnt2 and Wnt3 in stress-induced depression-like behaviors.
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Wnt2 和 Wnt3 在应激诱发的抑郁样行为中的抗抑郁作用
DOI:
10.1038/tp.2016.122
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发表时间:
2016-09-13
影响因子:
6.8
通讯作者:
Chen ZY
中科院分区:
文献类型:
--
作者:
Zhou WJ;Xu N;Kong L;Sun SC;Xu XF;Jia MZ;Wang Y;Chen ZY
Wnts-related signaling pathways have been reported to play roles in the pathogenesis of stress-induced depression-like behaviors. However, there is relatively few direct evidence to indicate the effect of Wnt ligands on this process. Here, we investigated the role of Wnts in mediating chronic restraint stress (CRS)-induced depression-like behaviors. We found that CRS induced a significant decrease in the expression of Wnt2 and Wnt3 in the ventral hippocampus (VH) but not in the dorsal hippocampus. Knocking down Wnt2 or Wnt3 in the VH led to impaired Wnt/β-catenin signaling, neurogenesis deficits and depression-like behaviors. In contrast, overexpression of Wnt2 or Wnt3 reversed CRS-induced depression-like behaviors. Moreover, Wnt2 and Wnt3 activated cAMP response element-binding protein (CREB) and there was CREB-dependent positive feedback between Wnt2 and Wnt3. Finally, fluoxetine treatment increased Wnt2 and Wnt3 levels in the VH and knocking down Wnt2 or Wnt3 abolished the antidepressant effect of fluoxetine. Taken together, our study indicates essential roles for Wnt2 and Wnt3 in CRS-induced depression-like behaviors and antidepressant.
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通讯作者:
McEwen BS
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