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Article

MicroRNA-320a acts as a tumor suppressor in endometrial carcinoma by targeting IGF-1R

  • Authors:
    • Shanrong Shu
    • Xiaoping Liu
    • Ming Xu
    • Xuesong Gao
    • Shu Chen
    • Lai Zhang
    • Ruiman Li
  • View Affiliations / Copyright

    Affiliations: Department of Gynecology and Obstetrics, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, P.R. China, Department of Hematology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510630, P.R. China, Department of Medical Ultrasound, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China, Department of Clinical Medicine, Medical College of Jinan University, Guangzhou, Guangdong 510630, P.R. China
  • Pages: 1505-1512
    |
    Published online on: January 7, 2019
       https://doi.org/10.3892/ijmm.2019.4051
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Abstract

Dysregulation of microRNAs (miRs) is implicated in the carcinogenesis of various types of malignant tumor by manipulating cell growth and apoptosis. Abnormal expression of miR‑320a is involved in tumorigenesis of many types of cancer. The potential association of miR‑320a and the possible regulatory mechanisms in endometrial carcinoma is rarely elucidated. In the present study, it was demonstrated that miR‑320a expression was decreased in endometrial carcinoma tissues and cell lines. The present results also indicated that overexpression of miR‑320a suppressed cell proliferation through inducing G2/M phrase arrest and apoptosis. Insulin‑like growth factor receptror‑1 (IGF‑1R) was verified to be the potential target of miR‑320a by computational analysis and luciferase reporter assays. In addition, overexpression of miR‑320a reduced endogenous IGF‑1R expression in cells. Furthermore, it was demonstrated that upregulation of miR‑320a inhibited phosphorylated (p)‑protein kinase B and p‑mechanistic target of rapamycin activation and promoted B cell lymphoma‑2‑associated death promoter expression. Reintroduction of IGF‑1R into miR‑320a‑overexpressed cells antagonized the impact of miR‑320a on its downstream protein, which demonstrated that the tumor suppressive role of miR‑320a in endometrial carcinoma is exerted by the signal pathway mediated by IGF‑1R. It was therefore concluded that miR‑320a served an anti‑tumor role on endometrial carcinoma through the regulation of IGF‑1R, and miR‑320a may be used as the target for the gene therapy of endometrial carcinoma.
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Copy and paste a formatted citation
Spandidos Publications style
Shu S, Liu X, Xu M, Gao X, Chen S, Zhang L and Li R: MicroRNA-320a acts as a tumor suppressor in endometrial carcinoma by targeting IGF-1R. Int J Mol Med 43: 1505-1512, 2019.
APA
Shu, S., Liu, X., Xu, M., Gao, X., Chen, S., Zhang, L., & Li, R. (2019). MicroRNA-320a acts as a tumor suppressor in endometrial carcinoma by targeting IGF-1R. International Journal of Molecular Medicine, 43, 1505-1512. https://doi.org/10.3892/ijmm.2019.4051
MLA
Shu, S., Liu, X., Xu, M., Gao, X., Chen, S., Zhang, L., Li, R."MicroRNA-320a acts as a tumor suppressor in endometrial carcinoma by targeting IGF-1R". International Journal of Molecular Medicine 43.3 (2019): 1505-1512.
Chicago
Shu, S., Liu, X., Xu, M., Gao, X., Chen, S., Zhang, L., Li, R."MicroRNA-320a acts as a tumor suppressor in endometrial carcinoma by targeting IGF-1R". International Journal of Molecular Medicine 43, no. 3 (2019): 1505-1512. https://doi.org/10.3892/ijmm.2019.4051
Copy and paste a formatted citation
x
Spandidos Publications style
Shu S, Liu X, Xu M, Gao X, Chen S, Zhang L and Li R: MicroRNA-320a acts as a tumor suppressor in endometrial carcinoma by targeting IGF-1R. Int J Mol Med 43: 1505-1512, 2019.
APA
Shu, S., Liu, X., Xu, M., Gao, X., Chen, S., Zhang, L., & Li, R. (2019). MicroRNA-320a acts as a tumor suppressor in endometrial carcinoma by targeting IGF-1R. International Journal of Molecular Medicine, 43, 1505-1512. https://doi.org/10.3892/ijmm.2019.4051
MLA
Shu, S., Liu, X., Xu, M., Gao, X., Chen, S., Zhang, L., Li, R."MicroRNA-320a acts as a tumor suppressor in endometrial carcinoma by targeting IGF-1R". International Journal of Molecular Medicine 43.3 (2019): 1505-1512.
Chicago
Shu, S., Liu, X., Xu, M., Gao, X., Chen, S., Zhang, L., Li, R."MicroRNA-320a acts as a tumor suppressor in endometrial carcinoma by targeting IGF-1R". International Journal of Molecular Medicine 43, no. 3 (2019): 1505-1512. https://doi.org/10.3892/ijmm.2019.4051
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