成人与儿童急性髓系白血病患者肿瘤免疫相关的差异表达基因分析  

Analysis of tumor immune-related differentially expressed genes in adults and children with acute myeloid leukemia

作　　者：李玲玲[1,2] 李倩 李明玉[2] 刘峥 沈倩诚[2] LI Ling-ling;LI Qian;LI Ming-yu;LIU Zheng;SHEN Qian-cheng(Department of Central Laboratory,Shanghai Children's Hospital,Shanghai Jiao Tong University,Shanghai 200062,China;Medicinal Bioinformatics Center,Shanghai Jiao Tong University College of Basic Medical Sciences,Shanghai 200025,China;School of Management,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海市儿童医院,上海交通大学附属儿童医院中心实验室,上海200062 [2]上海交通大学基础医学院医药生物信息学中心,上海200025 [3]上海工程技术大学管理学院,上海201620

出　　处：《上海交通大学学报（医学版）》2021年第5期579-587,共9页Journal of Shanghai Jiao tong University:Medical Science

基　　金：上海市卫生和计划生育委员会青年项目(20184Y0220)。

摘　　要：目的·分析成人与儿童急性髓系白血病(acute myeloid leukemia,AML)患者骨髓中肿瘤免疫相关的差异表达基因(differentially expressed genes,DEGs)。方法·从GEO(Gene Expression Omnibus)数据库下载GSE134589数据集,选取初次确诊/复发状态的患者,按年龄分为儿童组(0~16岁,34例)、中青年组(17~59岁,62例)和老年组(60~80岁,62例),用R语言程序包筛选不同组患者骨髓样本中肿瘤免疫相关的DEGs。选取中青年组与儿童组,老年组与儿童组共同的DEGs,与完全缓解状态的成人与儿童患者的DEGs进行比对,并进行功能富集分析。利用Kaplan-Meier法筛选与预后显著相关的基因,通过构建蛋白质相互作用(protein-protein interaction,PPI)网络筛选核心调控基因,将以上2种方法筛选出的基因视为关键基因。用GEPIA服务器对比关键基因在AML、弥漫大B细胞淋巴瘤(diffuse large B cell lymphoma,DLBCL)和胸腺癌的肿瘤样本与正常人样本的表达量,在GEXC网站分析关键基因在AML患者肿瘤干细胞和健康人的原始造血细胞中mRNA的表达情况。结果·GSE134589数据集中,中青年组与儿童组比,上调的DEGs有51个,下调的有21个;老年组与儿童组比,上调的DEGs有47个,下调的有20个;而中青年组与老年组比,没有发现DEG。筛选了中青年组和老年组共同的肿瘤免疫相关DEGs 57个,其中上调有39个,下调有18个,仅有3个基因的表达水平差异在疾病完全缓解时仍有统计学意义。57个共同DEGs主要富集在白细胞迁移和细胞因子介导的信号通路,其中白细胞介素2受体α亚基(interleukin-2 receptor subunit alpha,IL2RA)、FMS-样酪氨酸激酶3(FMS-like tyrosine kinase 3,FLT3)高表达的患者与低表达的患者相比总体生存期显著缩短(均P<0.05),补体成分3a受体1(complement component 3a receptor 1,C3AR1)是PPI网络的核心调控基因。这3个基因作为关键基因,均在AML肿瘤样本特异性高表达(均P<0.05),IL2RA还在DLBCL患者样本中显�Objective·To analyze tumor immune-related differentially expressed genes(DEGs)in the bone marrow of adults and children with acute myeloid leukemia(AML).Methods·The GSE134589 data set was downloaded from the GEO(Gene Expression Omnibus)database,and the patients in initial diagnosis/relapse were selected and divided into children group(0‒16 years old,34 cases),young and middle-aged group(17‒59 years old,62 cases)and elders group(60‒80 years old,62 cases).The tumor immune-related DEGs in the bone marrow samples of different groups of patients were screened by R language packages.The common DEGs of young and middle-aged group vs children group and elders group vs children group were compared with the DEGs of adults group vs children group in complete remission,and the functional enrichment analysis was conducted with the common DEGs.The Kaplan-Meier method was used to screen the DEGs that were significantly related to prognosis,and the core regulatory DEGs were screened by constructing a protein-protein interaction(PPI)network.The genes screened by the above two methods were regarded as key genes.The expression levels of the key genes in AML,diffuse large B cell lymphoma(DLBCL)and thymoma tumor samples and normal human samples were compared by GEPIA server,and the mRNA expression levels of key genes in the human AML tumor stem cells and the original hematopoietic cells of healthy people were analyzed by GEXC website.Results·In the GSE134589 data set,there were 51 DEGs up-regulated and 21 down-regulated between the young and middle-aged group and the children group;47 DEGs were up-regulated and 20 down-regulated between the elders group and the children group;no DEG was found between the young and middle-aged group and the elders group.Fifty-seven tumor immune-related DEGs were screened in both the young and middle-aged group and the elders group,of which 39 were up-regulated and 18 were down-regulated;in these DEGs only 3 genes showed statistically significant difference in expression level when the disease

关 键 词：急性髓系白血病 肿瘤免疫 差异表达基因 白细胞介素2受体α亚基 FMS-样酪氨酸激酶3 补体成分3a受体1 

分 类 号：R733.71[医药卫生—肿瘤]