part of part of skin fibroblast onychofibroblast 2025-07-22T14:35:00Z A specialized fibroblast located in the onychodermis that play a key role in nail growth and regeneration by interacting with LGR6-positive nail matrix keratinocytes. These interactions mediate essential signaling pathways, particularly WNT signaling, which is critical for epithelial–mesenchymal communication and coordinated nail development. In humans, this cell expresses key markers, including RSPO4, MSX1, WIF1, and BMP5, all involved in nail differentiation. nail