检验医学 ›› 2021, Vol. 36 ›› Issue (5): 535-543.DOI: 10.3969/j.issn.1673-8640.2021.05.016

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基于内源性竞争性网络的Ⅰ型、Ⅱ型子宫内膜癌关键长非编码RNA和微小RNA分析

袁霜, 王丽华   

  1. 上海交通大学医学院附属国际和平妇幼保健院上海市胚胎源性疾病重点实验室,上海 200030
  • 收稿日期:2020-06-02 出版日期:2021-05-30 发布日期:2021-05-30
  • 通讯作者: 王丽华
  • 作者简介:王丽华,联系电话:021-64070434。
    袁 霜,女,1995年生,硕士,主要从事妇科肿瘤的临床及基础研究。
  • 基金资助:
    国家自然科学基金面上项目(81572547)

Analysis of key long noncoding RNA and microRNA in type Ⅰ and type Ⅱ endometrial carcinoma based on endogenous competitive network

YUAN Shuang, WANG Lihua   

  1. The International Peace Maternity and Child Health Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai Key Laboratory of Embryonic Disease,Shanghai 200030,China
  • Received:2020-06-02 Online:2021-05-30 Published:2021-05-30
  • Contact: WANG Lihua

摘要:

目的 基于内源性竞争性网络分析可用于子宫内膜癌(EC)分型及诊治的潜在生物标志物。方法 从TCGA数据库中总结EC差异表达的基因,筛选出32个基因来构建内源性竞争性网络。采用基因本体论(GO)和京都基因与基因组数据库(KEGG)富集分析、相关性分析、生存分析及GEO数据集验证,进一步筛选关键基因。结果 Ⅰ型EC和Ⅱ型EC之间存在59个差异表达的长非编码RNA(lncRNA)、51个差异表达的微小RNA(miRNA)和843个差异表达的mRNA。在此基础上,建立了内源性竞争性网络,进一步筛选出与EC分型及预后相关的关键基因。在TCGA数据库中,LINC00667、miR-34c、miR-449a、miR-449b和TMCC3均与EC患者生存率相关,LINC00667和TMCC3表达越高,患者生存率越低,而miR-34c、miR-449a、miR-449b表达越高,患者生存率越高。Pearson相关分析结果显示,LINC00667与TMCC3呈正相关(P<0.001)。EC患者中LINC00667高表达与EC的病理分型、分化程度和国际妇产科联盟(FIGO)分期有关(P<0.05),与年龄无关(P>0.05)。TMCC3高表达与EC的病理分型、年龄和分化程度有关(P<0.05),与FIGO分期无关(P>0.05)。miR-34c、miR-449a、miR-449b低表达与EC的病理分型、分化程度和FIGO分期有关(P<0.05),与年龄无关(P>0.05)。结论 LINC00667-miR-34c/miR-449a/miR-449b-TMCC3是Ⅰ型和Ⅱ型EC内源性竞争性网络中的关键基因,且均具有良好的预后评估价值。

关键词: 长非编码RNA, 微小RNA, 竞争性内源RNA, 子宫内膜癌, 分型

Abstract:

Objective To analyze the potential biomarkers involved in the classification,diagnosis and treatment of endometrial carcinoma(EC) based on endogenous competitive network. Methods The differentially expressed genes were summarized from the Cancer Genome Atlas(TCGA) database,and 32 genes were screened to construct endogenous competitive network. In order to further screen key genes,Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analysis,correlation analysis,survival analysis and GEO datum set validation were carried out. Results There were 59 differentially expressed long noncoding RNA(lncRNA),51 differentially expressed microRNA(miRNA)and 843 differentially expressed messenger RNA between type Ⅰ and type Ⅱ EC. On this basis,an endogenous competitive network was established,and further the key genes related to genotyping and prognosis were screened.LINC00667 and TMCC3 were negatively correlated,while miR-34c,miR-449a,miR-449b were positively correlated with the survival of EC patients in the TCGA database. Pearson correlation analysis showed that LINC00667 was positively correlated with TMCC3(P<0.001). The high expression of LINC00667 in EC patients was related to the classification of EC,the International Federation of Gynecology and Obstetrics(FIGO) stage and differentiation(P<0.05),but there was no relation with age(P>0.05). The high expression of TMCC3 was correlated with the classification of EC,age and differentiation(P<0.05),but there was no relation with FIGO stage(P>0.05). The high expression of miR-34c,miR-449a,miR-449b in EC patients was related to the classification of EC,FIGO stage and differentiation(P<0.05),but there was no relation with age(P>0.05). Conclusions LINC00667-miR-34c/miR-449a/miR-449b-TMCC3 are identified as key genes in the endogenous competitive network of type Ⅰ and type Ⅱ EC and have good prognostic value.

Key words: Long noncoding RNA, MicroRNA, Competitive endogenous RNA, Endometrial carcinoma, Classification

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