Journal of Medical Molecular Biology ›› 2026, Vol. 23 ›› Issue (4): 406-411.doi: 10.3870/j.issn.1672-8009.2026.04.005

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miR-429 Affects Chronic Non-Healing Wound Repair through Wnt/β-catenin Pathway

HUANG Wenwen1, MENG Li2, XIE Hui1, HU Shouyong1, SHI Huafeng1   

  1. 1Department of Trauma and Orthopedics,2Department of Endocrinology,Jingmen Central Hospital/Jingmen Central Hospita Affiliated to Jingchu University of Technology,Jingmen,Hubei,448001,China
  • Received:2025-12-09 Published:2026-09-28
  • Contact: HUANG Wenwen(E-mail:hwwen15327536882@163.com)

Abstract: Objective To investigate the effects of miR-429 on the healing of chronic non-healing wounds and the Wnt/β-catenin signaling pathway. Methods A total of 60 rats were randomly divided into 5 groups:blank control group,model group,negative control group(injected with antagomir NC),LV-429 group(injected with miR-429 antagomir lentivirus),and inhibitor group(injected with miR-429 antagomir lentivirus and Wnt/β-catenin signaling pathway inhibitor IWP-2).The wound healing rates in rats were assessed,and wound tissue samples were collected for measurement of miR-429 levels,as well as the protein expression of Wnt3a and β-catenin,and the expression of vascular endothelial growth factor A(VEGFA)and endothelial nitric oxide synthase(ENOS).Rat serum samples were collectedor measurement of the levels of interleukin-6(IL-6)and tumor necrosis factor-α(TNF-α). Results Compared with that in the model group and the negative control group,the miR-429 expression level was reduced in the LV-429 group and the inhibitor group.Compared with the model group and the negative control group,in the LV-429 group,the wound healing rates,Wnt3a,β-catenin protein expression,and the positive expression rates of VEGFA and ENOS were all increased,while the IL-6 and TNF-α levels were both decreased(P<0.05).In the inhibitor group,the wound healing rate,Wnt3a and β-catenin protein expression,and the positive expression rates of VEGFA and ENOS were all decreased,while the IL-6 and TNF-α levels were both increased(P<0.05). Conclusion Inhibiting the expression of miR-429 can promote the repair of chronic refractory wounds,and this process is mediated by activating the Wnt/β-catenin signaling pathway.

Key words: miR-429, wound repair, Wnt/β-catenin signaling pathway, vascular endothelial growth factor A, endothelial nitric oxide synthase, wound healing rate, interleukin-6, tumor necrosis factor-α

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