Volume 43 Issue 1
Jan.  2022
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Zhenhuan MA, Zhen LI, Xianglin ZHOU, Guojian LI, Guokai YANG, Jia WAN, Lingjuan DU, Yong YANG. Iodine-125 Seed Inhibits the Proliferation and Invasion of Gastric Cancer Cells by Regulating MicroRNA-193b-5p Expression[J]. Journal of Kunming Medical University, 2022, 43(1): 8-13. doi: 10.12259/j.issn.2095-610X.S20220120
Citation: Zhenhuan MA, Zhen LI, Xianglin ZHOU, Guojian LI, Guokai YANG, Jia WAN, Lingjuan DU, Yong YANG. Iodine-125 Seed Inhibits the Proliferation and Invasion of Gastric Cancer Cells by Regulating MicroRNA-193b-5p Expression[J]. Journal of Kunming Medical University, 2022, 43(1): 8-13. doi: 10.12259/j.issn.2095-610X.S20220120

Iodine-125 Seed Inhibits the Proliferation and Invasion of Gastric Cancer Cells by Regulating MicroRNA-193b-5p Expression

doi: 10.12259/j.issn.2095-610X.S20220120
  • Received Date: 2021-12-27
    Available Online: 2021-12-20
  • Publish Date: 2022-01-15
  •   Objective   To investigate the role of microRNA (miRNA, miR)-193b-5p in the process of iodine-125 particle radiotherapy for gastric cancer.   Methods   Gastric cancer cell line BGC-823 was used as the research object and iodine-125 seed in vitro irradiation model was established, and the expression profile of miRNA was detected by small molecule RNA sequencing. The expression of miR-193b-5p was analyzed by quantitative real time polymerase chain reaction (RT-qPCR). MiR-193b-5p knockdown cell and control cell lines (knockdown group and control group) were established in gastric cancer cell line BGC-823 by hsa-miR-193b-5p inhibitor and NC inhibitor. Cell proliferation was analyzed by methyl thiazolyl tetrazolium (MTT) assay in the two groups. Cell invasion was analyzed by Transwell.   Result   Compared with the expression level of miR-193b-5p in the non-irradiated group (0.173±0.045), the expression of miR-193b-5p in the iodine-125 irradiated group (0.853±0.180) was significantly increased (t = 6.371, P < 0.05). Compared with the expression of miR-193b-5p in the control group (12.219±2.464), the expression of miR-193b-5p in the knockdown group (1.264±0.311) was significantly decreased (t = -7.640, P < 0.05). Compared with the control group (0.424±0.246), the proliferation of knockdown group (0.574±0.382)was significantly increased (t = 3.927, P < 0.05). Compared with the control group (40±7), the number of cell invasion in the knockdown group (222+23) was significantly increased (t = -13.293, P < 0.05).   Conclusion   Iodine-125 seed suppresses the proliferation and invasion of gastric cancer cells by regulating the expression of miR-193b-5p in the process of radiotherapy for gastric cancer.
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