实用肿瘤学杂志 ›› 2024, Vol. 38 ›› Issue (3): 173-178.doi: 10.11904/j.issn.1002-3070.2024.03.005

• 临床研究 • 上一篇    下一篇

食管鳞癌中microRNA let-7a-3甲基化与IGF-Ⅱ的相关性

朱公建1, 郭红云1, 白悦1, 王晓敏2, 朱小康1, 刘东彦1, 刘玉琴1   

  1. 1.甘肃省医学科学研究院/中山大学附属肿瘤医院甘肃医院科教科(兰州 730050);
    2.兰州市西固区人民医院消化内科
  • 收稿日期:2023-11-07 修回日期:2024-05-31 出版日期:2024-06-28 发布日期:2024-07-30
  • 通讯作者: 刘玉琴,E-mail:liuyq970930@126.com
  • 作者简介:朱公建,男,(1980-),博士,研究员,从事肿瘤分子流行病学的研究。
  • 基金资助:
    兰州市人才创业创新项目(编号:2018-RC-96)

The correlation between microRNA let-7a-3 methylation and IGF-Ⅱ expression in esophageal squamous cell carcinoma

ZHU Gongjian1, GUO Hongyun1, BAI Yue1, WANG Xiaomin2, ZHU Xiaokang1, LIU Dongyan1, LIU Yuqin1   

  1. 1. Department of Science and Education,Gansu Provincial Academy of Medical Science/ Sun Yat-sen University Cancer Center Gansu Hospital,Lanzhou 730050,China;
    2. Department of Gastroenterology,Xigu District of Lanzhou City People′s Hospital
  • Received:2023-11-07 Revised:2024-05-31 Online:2024-06-28 Published:2024-07-30

摘要: 目的 探讨食管鳞癌组织中microRNA let-7a-3甲基化状态与血浆中类胰岛素样生长因子2(Insulin like growth factor 2,IGF-Ⅱ)表达的相关性。方法 采用甲基化特异性PCR法(Methylation specific PCR,qMSP)检测83例食管癌及相对应的癌旁正常组织中let-7a-3甲基化状态,采用酶联免疫吸附试验(Enzyme linked immunosorbent assay,ELISA)检测血浆中IGF-Ⅱ的表达水平。结果 83例食管鳞癌患者癌组织中的microRNA let-7a-3甲基化程度显著高于癌旁正常组织(P<0.001)。83例食管鳞癌患者血浆中IGF-Ⅱ的表达水平与let-7a-3基因的甲基化程度总体上呈正相关,具有统计学意义(r=0.600,P<0.001)。结论 microRNA let-7a-3可能通过对下游分子的甲基化调控参与食管鳞癌的发生发展,这对了解食管鳞癌形成的机制具有重要意义,可为食管鳞癌的诊断和预后提供依据。

关键词: 食管鳞癌, let-7a-3, 甲基化, 类胰岛素样生长因子2

Abstract: Objective The aim of this study was to explore the correlation between the methylation status of microRNA let-7a-3 in esophageal squamous cell carcinoma (ESCC)and the expression of insulin-like growth factor 2 (IGF-Ⅱ). Methods The methylation specific PCR (qMSP)was used to detect the methylation status of let-7a-3 in 83 cases of esophageal cancer and corresponding adjacent normal tissues.The enzyme linked immunosorbent assay (ELISA)was used to detect the expression of IGF-II in plasma. Results The degree of let-7a-3 methylation in cancer tissues of 83 patients with ESCC was significantly higher than that in normal tissues adjacent to cancer (P<0.001).The expression of IGF-Ⅱ in the plasma of 83 patients with ESCC was positively correlated with the methylation degree of let-7a-3,which was statistically significant (r=0.600,P<0.001). Conclusion microRNA let-7a-3 may participate in the occurrence and progression of ESCC by regulating the methylation of downstream molecules,which is of great significance for understanding the mechanisms of ESCC development and providing a basis for the diagnosis and prognosis of ESCC.

Key words: Esophageal squamous cell carcinoma, let-7a-3, Methylation, Insulin like growth factor 2

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