Scars Or Regeneration? Dermal Fibroblasts As Drivers Of Diverse Skin Wound Responses

The document reviewed the role of dermal fibroblasts in skin wound responses, focusing on their contribution to either scarring or regeneration. It highlighted the heterogeneity of fibroblasts and their mechanisms, such as intercellular and cell-matrix adhesion, which influenced the scarring-regeneration continuum. Specific fibroblast lineages, like En1 lineage positive fibroblasts, were identified as primary contributors to fibrosis. The study emphasized the importance of fibroblast plasticity and the potential to reduce scarring by manipulating fibroblast transitions. It also explored signaling pathways, including Wnt/β-catenin and Sonic Hedgehog (Shh), which played roles in fibrosis and regeneration, such as wound-induced hair follicle neogenesis (WIHN). The findings suggested that understanding and targeting specific fibroblast markers and pathways could improve wound healing outcomes and reduce fibrosis.