Partial loss of psychiatric risk gene Mir137 in mice causes repetitive behavior and impairs sociability and learning via increased Pde10a.

Partial loss of psychiatric risk gene Mir137 in mice causes repetitive behavior and impairs sociability and learning via increased Pde10a.
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小鼠精神疾病风险基因 Mir137 部分缺失会导致重复行为,并通过增加 Pde10a 损害社交能力和学习能力。

DOI:
10.1038/s41593-018-0261-7
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发表时间:
2018-12
影响因子:
25
通讯作者:
Jin P
Jin P
中科院分区:
医学1区
文献类型:
--
作者:
Cheng Y;Wang ZM;Tan W;Wang X;Li Y;Bai B;Li Y;Zhang SF;Yan HL;Chen ZL;Liu CM;Mi TW;Xia S;Zhou Z;Liu A;Tang GB;Liu C;Dai ZJ;Wang YY;Wang H;Wang X;Kang Y;Lin L;Chen Z;Xie N;Sun Q;Xie W;Peng J;Chen D;Teng ZQ;Jin P

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遗传分析将MicroRNA-137(MIR 137)与神经精神疾病联系起来,包括精神分裂症和自闭症谱系障碍(ASD)。miR-137在神经发生和神经元成熟中起重要作用,但miR-137功能丧失在体内的影响仍不清楚。在这里,我们显示miR-137在小鼠生殖系(gKO)或神经系统(cKO)中的完全缺失导致出生后致死,而杂合gKO和cKO小鼠仍然存活。杂合cKO小鼠中miR-137的部分缺失导致突触可塑性失调、重复行为以及学习和社会行为受损。转录组学和蛋白质组学分析显示,miR-137 mRNA靶标磷酸二酯酶10a(Pde 10a)在杂合KO小鼠中升高。用PDE 10A抑制剂罂粟碱治疗或敲低Pde 10a可改善在杂合cKO小鼠中观察到的缺陷。总的来说,我们的研究结果表明,miR-137在出生后神经发育中起着重要作用,并且miR-137的失调可能导致人类神经精神疾病。
Genetic analyses have linked MicroRNA-137 (MIR137) to neuropsychiatric disorders, including schizophrenia and autism spectrum disorder (ASD). MiR-137 plays important roles in neurogenesis and neuronal maturation, but the impact of miR-137 loss of function in vivo remains unclear. Here we show the complete loss of miR-137 in the mouse germline (gKO) or nervous system (cKO) leads to postnatal lethality, while heterozygous gKO and cKO mice remain viable. Partial loss of miR-137 in heterozygous cKO mice results in dysregulated synaptic plasticity, repetitive behavior, and impaired learning and social behavior. Transcriptomic and proteomic analyses revealed that the miR-137 mRNA target, Phosphodiesterase 10a (Pde10a), is elevated in heterozygous KO mice. Treatment with the PDE10A inhibitor papaverine or knockdown of Pde10a ameliorates the deficits observed in the heterozygous cKO mice. Collectively, our results suggest that MIR137 plays essential roles in postnatal neurodevelopment, and that dysregulation of miR-137 potentially contributes to neuropsychiatric disorders in humans.
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