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This study found that self-noncoding dsRNA activates TLR3 to stimulate intrinsic retinoic acid synthesis, promoting new hair follicle formation in wounded mice and showing similar gene expression changes in humans treated with rejuvenation lasers.

The researchers reported that noncoding double-stranded RNA promotes wound-induced hair neogenesis in mice by modulating prostaglandin and Wnt levels.

This study found that TLR3 activation in human keratinocytes enhances exosome biosynthesis and expression of hair follicle stem cell markers, suggesting a potential mechanism for tissue regeneration.

This study found that TLR3-mediated damage sensing can stimulate prostaglandin and Wnt pathways, potentially coordinating hair follicle regeneration in mice with large skin wounds.

This study identified a novel mechanism by which dsRNA-induced TLR3 activation and retinoic acid pathways contribute to new hair follicle formation after deep wounds in mice and suggested a similar potential in humans.