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Abstract

Neuroscience

基于神经胶质转录组谱的阿尔茨海默病性别特异性生物标志物鉴定

Published: May 20th, 2024

DOI:

10.3791/66552

1Chengdu University of Traditional Chinese Medicine, 2Chengdu Shuangliu Hospital of Traditional Chinese Medicine, 3Department of Automation, Tsinghua University, 4Affiliated Reproductive & Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, 5Department of Neurology, Dalian Municipal Central Hospital, Central Hospital of Dalian University of Technology

* These authors contributed equally

Abstract

最近在阿尔茨海默病 (AD) 中发现了许多性别特异性生物标志物;然而,脑胶质细胞的报道很少。这项研究分析了 GEO 数据库中 33 名 AD 个体额叶皮层的 220,095 个单核转录组。在神经胶质细胞中鉴定出性别特异性差异表达基因(DEGs),其中星形胶质细胞为243个,小胶质细胞为1,154个,少突胶质细胞为572个。基因本体论 (GO) 功能注释分析和京都基因和基因组百科全书 (KEGG) 通路富集分析揭示了突触、神经和激素相关通路的功能集中。蛋白-蛋白相互作用网络(PPI)鉴定出星形胶质细胞中的MT3、CALM2、DLG2、KCND2、PAKACB、CAMK2D和NLGN4Y,小胶质细胞中的TREM2、FOS、APOE、APP、NLGN4Y,以及少突胶质细胞中的GRIN2A、ITPR2、GNAS和NLGN4Y为关键基因。NLGN4Y是3个神经胶质细胞唯一共享的基因,被鉴定为AD性别特异性的生物标志物。 基因-转录因子(TF)-miRNA协同调控网络确定了NLGN4Y及其靶点中药的关键调控因子。 鉴定了Ecklonia kurome Okam(Kunbu)和Herba Ephedrae(麻黄),并展示了活性成分对AD的影响。最后,对昆布和马黄的富集分析表明,它们可能作为AD性别特异性的治疗候选者。

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