The Diminution of R-Loops Generated by LncRNA DSP-AS1 Inhibits DSP Gene Transcription to Impede the Re-Epithelialization During Diabetic Wound Healing.

ABSTRACT: Re-epithelialization constitutes a critical stage in the intricate process of wound healing, yet its mechanisms in the context of diabetic wounds remain elusive. In this study, the role of the mesenchymal-epithelial transition (MET) vis-à-vis the epithelial-mesenchymal transition (EMT) of keratinocytes in diabetic wound re-epithelialization is investigated. The findings reveal an impediment in the MET process, rather than EMT, which significantly compromised re-epithelialization in diabetic wounds. Furthermore, Desmoplakin (DSP) gene expression, encoding a key desmosome protein, is down-regulated in diabetic rats. This down-regulation coincided with aberrant hypo-demethylation of the DSP promoter. The inhibition of DSP expression is linked to reduced occupancy of Ten-eleven translocation 3

SUBMITTER: Yang C 

PROVIDER: S-EPMC11948065 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature