MiR-6836-3p promotes proliferation of hypertrophic scar fibroblasts by targeting CTGF

F. Liu, W.-W. Chen, Y. Li, J.-Q. Zhang, Q.-B. Zheng

Department of Plastic Surgery, Affiliated Hospital of Jining Medical University, Jining, China. zhengqibingjn@sina.com

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• Plastic Surgery

OBJECTIVE: To explore the role of micro ribonucleic acid (miR)-6836-3p in regulating hypertrophic scar (HS) and its potential mechanism.

PATIENTS AND METHODS: The level of miR-6836-3p in HS or normal skin was determined by Real-Time Reverse Transcription-Polymerase Chain Reaction (RT-PCR). Cell counting kit-8 (CCK8) and flow cytometry were applied to explore the effect of miR-98 on the growth and apoptosis of HS fibroblasts (HSFBs). Luciferase assay was employed to acknowledge whether connective tissue growth factor (CTGF) is a target of miR-6836-3p. Western blotting was used to detect the protein expression of CTGF after transfection with miR-6836-3p mimic or inhibitor.

RESULTS: MiR-6836-3p expression was much higher in HS than that in normal skin. MiR-6836-3p mimic promoted fibroblast growth, and CTGF was confirmed to be a direct target of miR-6836-3p. The results of Western blotting clarified that miR-6836-3p mimic raised the level of CTGF, and its expression was positively correlated with that of CTGF.

CONCLUSIONS: MiR-6836-3p promoted the development of HS by increasing the expression of CTGF. MiR-6836-3p may be a potential novel molecular target for the treatment of HS.

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