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Increased Axin expression enhances adult hippocampal neurogenesis and exerts an antidepressant effect.


ABSTRACT: Major depressive disorders are emerging health problems that affect millions of people worldwide. However, treatment options and targets for drug development are limited. Impaired adult hippocampal neurogenesis is emerging as a key contributor to the pathology of major depressive disorders. We previously demonstrated that increasing the expression of the multifunctional scaffold protein Axis inhibition protein (Axin) by administration of the small molecule XAV939 enhances embryonic neurogenesis and affects social interaction behaviors. This prompted us to examine whether increasing Axin protein level can enhance adult hippocampal neurogenesis and thus contribute to mood regulation. Here, we report that stabilizing Axin increases adult hippocampal neurogenesis and exerts an antidepressant effect. Specifically, treating adult mice with XAV939 increased the amplification of adult neural progenitor cells and neuron production in the hippocampus under both normal and chronic stress conditions. Furthermore, XAV939 injection in mice ameliorated depression-like behaviors induced by chronic restraint stress. Thus, our study demonstrates that Axin/XAV939 plays an important role in adult hippocampal neurogenesis and provides a potential therapeutic approach for mood-related disorders.

SUBMITTER: Chen WW 

PROVIDER: S-EPMC6362220 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Increased Axin expression enhances adult hippocampal neurogenesis and exerts an antidepressant effect.

Chen Wei-Wei WW   Fu Wing-Yu WY   Su Yi-Ting YT   Fang Wei-Qun WQ   Fu Amy K Y AKY   Ip Nancy Y NY  

Scientific reports 20190204 1


Major depressive disorders are emerging health problems that affect millions of people worldwide. However, treatment options and targets for drug development are limited. Impaired adult hippocampal neurogenesis is emerging as a key contributor to the pathology of major depressive disorders. We previously demonstrated that increasing the expression of the multifunctional scaffold protein Axis inhibition protein (Axin) by administration of the small molecule XAV939 enhances embryonic neurogenesis  ...[more]

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