首页> 外文期刊>Journal of Neuroimmunology: Official Bulletin of the Research Committee on Neuroimmunology of the World Federation of Neurology >Robust increase of microglia proliferation in the fornix of hippocampal axonal pathway after a single LPS stimulation
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Robust increase of microglia proliferation in the fornix of hippocampal axonal pathway after a single LPS stimulation

机译:单次LPS刺激后海马轴突途径穹for小胶质细胞增殖的强劲增加

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Microglia are resident immunocompetent cells having important roles in innate immunity in the brains. In the present study, we found that a single lipopolysaccharide (LPS) administration significantly increased microglial proliferation in the fornix and dentate gyrus (DG) but not the cerebral cortex and corpus callosum of adult mice. LPS-induced microglial proliferation was especially robust at the white matter of the fornix. The density of microglia increased in the fornix and DG for roughly one week and returned to basal levels at least 20 days after a single LPS administration. Consecutive LPS administration did not induce such dramatic increase of microglial proliferation in the fornix. The inhibition of vascular endothelial growth factor signaling by AZD2171 largely suppressed LPS-induced increase of microglial proliferation in the fornix. In conclusion, the present study indicates that the hippocampal neuronal system has a higher proliferative microglial capability against LPS-induced inflammatory administration compared with other brain regions. (C) 2015 Elsevier B.V. All rights reserved.
机译:小胶质细胞是常驻的免疫活性细胞,在大脑的先天免疫中具有重要作用。在本研究中,我们发现单次脂多糖(LPS)给药显着增加了成年小鼠的穹ni和齿状回(DG)中的小胶质细胞增殖,但不增加其大脑皮层和体。 LPS诱导的小胶质细胞增生在穹ni的白质中尤其牢固。一次LPS给药后至少20天,小肠和DG中的小胶质细胞密度增加,并恢复到基础水平。连续LPS给药未引起穹ni中小胶质细胞增殖的急剧增加。 AZD2171对血管内皮生长因子信号传导的抑制作用在很大程度上抑制了LPS诱导的穹micro小胶质细胞增殖的增加。总之,本研究表明,与其他脑区相比,海马神经元系统对LPS诱导的炎症给药具有更高的增殖性小胶质细胞能力。 (C)2015 Elsevier B.V.保留所有权利。

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