Journal of Practical Oncology ›› 2024, Vol. 38 ›› Issue (3): 173-178.doi: 10.11904/j.issn.1002-3070.2024.03.005

• Clinical Research • Previous Articles     Next Articles

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

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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