Department of Wound Repair Surgery, Liyuan Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei Province, 430062, PR China.
Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei Province, 430022, PR China.
Regen Med. 2023 Mar;18(3):239-258. doi: 10.2217/rme-2022-0189. Epub 2023 Jan 30.
This study aims to investigate the function of positive feedback loops involving noncoding RNA in diabetic wound healing. We developed a mouse diabetic wound model to confirm that hyperglycemia can impair wound healing. We also used an keratinocyte model in high-glucose conditions to investigate the mechanism of delayed wound healing. was decreased in diabetic mouse wound tissue and can promote keratinocyte biological functions. could bind to miR-106a-5p to modulate the expression of , a target gene of miR-106a-5p. Surprisingly, ZNF148 bound to a region in the promoter to stimulate gene expression. ZNF148-activated increases expression by competitively binding miR-106a-3p, generating a positive feedback loop that enhances keratinocyte function.
本研究旨在探讨涉及非编码 RNA 的正反馈环在糖尿病伤口愈合中的功能。我们构建了一个小鼠糖尿病伤口模型,以证实高血糖会损害伤口愈合。我们还使用高糖条件下的角质形成细胞模型来研究延迟伤口愈合的机制。miR-106a-5p 在糖尿病小鼠伤口组织中减少,可促进角质形成细胞的生物学功能。ZNF148 可以与 miR-106a-5p 结合,调节 miR-106a-5p 的靶基因 的表达。令人惊讶的是,ZNF148 结合到 启动子的一个区域以刺激基因表达。ZNF148 激活的 通过竞争性结合 miR-106a-3p 增加 的表达,产生一个正反馈环,增强角质形成细胞功能。