Inhibitory effect of miR-145 on RPE cell proliferation

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  • 作者：Ken Zhao, Zhen Chen, Xu-Dong Lv, Gang Dong, Huan Xia
  • 期刊：American Journal of Translational Research
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Objective:This study aims to explore the impact of micro RNA miR-145 on retinal pigment epithelial cell proliferation and apoptosis.

Methods:A stable culture and passage system of hPNE cells was first established, and its migration ability was determined. Then, miR-145 lentiviral vectors were constructed to transfect hPRE cells. Thereafter, hRPE cell proliferation was detected by MTT assay after they were transfected by lentivirus, cell cycle was analyzed by flow cytometry, and apoptosis was detected by Annexin V/PI double staining immunofluorescence.

Results:Cultured hPRE cells had good migrating and metastatic ability, in which subsequent lentivirus infection experiments can be carried out. After transfection by miR-145 lentiviral vectors, hPRE cell proliferation slowed down and RPE cells in the G1 phase was inhibited; thus, apoptosis rate increased.

Conclusion:MiR-145 can slow down retinal pigment epithelial cell proliferation and increase their apoptosis rate. This has a certain therapeutic potential for diseases caused by RPE cell proliferation such as PVR.

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