目的:應(yīng)用生物信息學方法對哮喘患者上氣道基因表達譜芯片進行分析,進一步探討其可能的發(fā)病機制。方法:從GEO（Gene expressionomnibus）數(shù)據(jù)庫下載哮喘表達譜的芯片數(shù)據(jù)（GSE41861）,利用R語言Limma軟件包篩選哮喘患者與非哮喘患者鼻黏膜的差異表達基因（differentially expressed genes,DEGs）,并對差異基因作基因本體論（gene ontology,GO）和京都基因與基因組百科全書（kyoto encyclopedia of genes and genomes,KEGG）通路富集分析。利用STRING在線數(shù)據(jù)庫進行蛋白-蛋白相互作用（protein protein interaction,PPI）分析,并用Cytoscape軟件及其插件NetworkAnalyzer進行可視化,尋找關(guān)鍵（Hub）基因。結(jié)果:共篩選出118個差異基因,其中包括93個上調(diào)基因和25個下調(diào)基因。對差異基因進行生物信息學分析,上調(diào)DEGs主要參與唾液分泌相關(guān)通路和結(jié)核相關(guān)通路,下調(diào)DEGs主要參與TGF-β相關(guān)信號通路。蛋白網(wǎng)絡(luò)分析篩選出CDC5L、AR和A... 

【文章來源】：湖北醫(yī)藥學院學報. 2020,39(02)

【文章頁數(shù)】：7 頁

【部分圖文】：

差異表達基因熱圖

表2 差異表達基因GO富集分析結(jié)果 Category ID Term Gene count BP GO:0006919 Activation of cysteine-type endopeptidase activity involved in apoptotic process 6 GO:0044344 cellular response to fibroblast growth factor stimulus 4 GO:0071902 positive regulation of protein serine/threonine kinase activity 4 GO:0055114 oxidation-reduction process 10 GO:0000398 mRNA splicing, via spliceosome 6 GO:0030100 regulation of endocytosis 3 GO:0001666 response to hypoxia 5 GO:1903427 negative regulation of reactive oxygen species biosynthetic process 2 GO:0045726 positive regulation of integrin biosynthetic process 2 GO:0010628 positive regulation of gene expression 6 CC GO:0005615 extracellular space 19 GO:0005829 cytosol 33 GO:0070062 extracellular exosome 29 GO:0030426 growth cone 5 GO:0005925 focal adhesion 8 GO:0005794 Golgi apparatus 12 MF GO:0004869 cysteine-type endopeptidase inhibitor activity 3 GO:0002020 protease binding 4 GO:0001085 RNA polymerase II transcription factor binding 3 GO:0042802 identical protein binding 10 GO:0030235 nitric-oxide synthase regulator activity 2 GO:0020037 heme binding 4 GO:0003725 double-stranded RNA binding 3圖3 下調(diào)差異表達基因KEGG通路富集分析結(jié)果

下調(diào)差異表達基因KEGG通路富集分析結(jié)果

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