UNASSIGNED:阿尔茨海默病(AD)是一种进行性神经退行性疾病,可导致认知障碍和记忆力减退。目前,AD的发病机制和潜在致病基因仍不清楚,这种疾病没有有效的治疗方法。本研究通过分析来自NCBI基因表达综合数据库的公开数据,从免疫浸润的角度探索AD相关的诊断和治疗生物标志物。
未经批准:在这项研究中,进行了加权基因共表达网络分析(WGCNA),以鉴定有助于AD发生的模块和中枢基因.当模块中的基因被富集并通过基因本体论(GO)/京都基因和基因组百科全书(KEGG)分析进行检查时,构建了蛋白质-蛋白质相互作用网络。此外,使用拓扑WGCNA建立了一个基因网络,从中选择了五个hub基因。采用Logistic回归分析和受试者工作特征曲线分析探讨基因在AD诊断中的临床价值。核心模块中的基因与集线器基因相交,和四个交叉基因(ATP2A2,ATP6V1D,选择CAP2和SYNJ1)。通过基因集富集分析(GSEA)富集这四个基因。最后,进行了免疫浸润分析。
UNASSIGNED:GO/KEGG分析表明,核心模块中的基因在神经细胞的分化和生长以及神经递质的传递中起作用。核心基因的GSEA显示,这四个基因主要富集在免疫/感染途径中(例如,霍乱感染和幽门螺杆菌感染途径)和其他代谢途径。对免疫浸润特性的研究表明,激活的肥大细胞,调节性T细胞,浆细胞,中性粒细胞,滤泡辅助性T细胞,CD8T细胞,静息记忆CD4T细胞,M1巨噬细胞是导致AD进展的核心免疫细胞。qRT-PCR分析显示ATP6V1D在AD中上调。
UNASSIGNED:富集和免疫渗透分析结果表明,免疫途径和免疫细胞在AD的发生和发展中起重要作用。筛选出的关键基因作为与AD发病相关的生物标志物,进一步探索其通路和细胞,这为AD的治疗靶点提供了新的视角。
UNASSIGNED: Alzheimer\'s disease (AD) is a progressive neurodegenerative disease that leads to cognitive impairment and memory loss. Currently, the pathogenesis and underlying causative genes of AD remain unclear, and there exists no effective treatment for this disease. This study explored AD-related diagnostic and therapeutic biomarkers from the perspective of immune infiltration by analyzing public data from the NCBI Gene Expression Omnibus database.
UNASSIGNED: In this study, weighted gene co-expression network analysis (WGCNA) was conducted to identify modules and hub genes contributing to AD development. A protein-protein interaction network was constructed when the genes in the modules were enriched and examined by Gene Ontology (GO)/Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. Furthermore, a gene network was established using topological WGCNA, from which five hub genes were selected. Logistic regression analysis and receiver operating characteristic curve analysis were performed to explore the clinical value of genes in AD diagnosis. The genes in the core module intersected with the hub genes, and four intersection genes (ATP2A2, ATP6V1D, CAP2, and SYNJ1) were selected. These four genes were enriched by gene set enrichment analysis (GSEA). Finally, an immune infiltration analysis was performed.
UNASSIGNED: The GO/KEGG analysis suggested that genes in the core module played a role in the differentiation and growth of neural cells and in the transmission of neurotransmitters. The GSEA of core genes showed that these four genes were mainly enriched in immune/infection pathways (e.g., cholera infection and Helicobacter pylori infection pathways) and other metabolic pathways. An investigation of immune infiltration characteristics revealed that activated mast cells, regulatory T cells, plasma cells, neutrophils, T follicular helper cells, CD8 T cells, resting memory CD4 T cells, and M1 macrophages were the core immune cells contributing to AD progression. qRT-PCR analysis showed that the ATP6V1D is upregulated in AD.
UNASSIGNED: The results of enrichment and immuno-osmotic analyses indicated that immune pathways and immune cells played an important role in the occurrence and development of AD. The selected key genes were used as biomarkers related to the pathogenesis of AD to further explore the pathways and cells, which provided new perspectives on therapeutic targets in AD.