CD146 deletion in the nervous system impairs appetite, locomotor activity and spatial learning in mice.

CD146 deletion in the nervous system impairs appetite, locomotor activity and spatial learning in mice.
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神经系统中 CD146 的缺失会损害小鼠的食欲、运动活动和空间学习

DOI:
10.1371/journal.pone.0074124
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Yan X
Yan X
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Tu T;Gao Q;Luo Y;Chen J;Lu D;Feng J;Yang D;Song L;Yan X

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细胞粘附分子(CAM)是神经系统发育和维持的重要效应子。人类CAM基因的突变与大脑疾病和心理疾病有关,CAM敲除小鼠总是表现出类似的行为异常。CD 146是免疫球蛋白超家族的CAM,其与神经突生长因子相互作用并参与体外神经突延伸。然而,关于其在神经系统中的体内功能知之甚少。在这项研究中,我们使用了小鼠CD 146神经系统敲除(CD 146 ns-ko)模型。我们发现一些CD 146 ns-ko小鼠的大脑畸形,具有小嗅球。与野生型同窝小鼠相比,CD 146 ns-ko小鼠表现出较低的体重和较少的食物摄入。重要的是,行为测试显示,CD 146 ns-ko小鼠表现出显著的运动活动减少和空间学习和记忆能力受损。我们的研究结果表明,CD 146是重要的哺乳动物神经系统发育和适当的行为模式。
Cell adhesion molecules (CAMs) are crucial effectors for the development and maintenance of the nervous system. Mutations in human CAM genes are linked to brain disorders and psychological diseases, and CAM knockout mice always exhibit similar behavioral abnormalities. CD146 is a CAM of the immunoglobulin superfamily that interacts with Neurite Outgrowth Factor and involved in neurite extension in vitro. However, little is known about its in vivo function in the nervous system. In this study, we used a murine CD146 nervous system knockout (CD146ns-ko) model. We found that the brains of some CD146ns-ko mice were malformed with small olfactory bulbs. CD146ns-ko mice exhibited lower body weights and smaller food intake when compared with wild type littermates. Importantly, behavior tests revealed that CD146ns-ko mice exhibited significant decreased locomotor activity and impaired capacity for spatial learning and memory. Our results demonstrate that CD146 is important for mammalian nervous system development and proper behavior patterns.
肽模拟靶向跨性别的NCAM结合位点可促进海马中的空间学习和神经可塑性。
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发表时间: 2011
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影响因子: 2.3
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