Dermal White Adipose Tissue: Development and Impact on Hair Follicles, Skin Defense, and Fibrosis

The document examines the development and significance of dermal white adipose tissue (DWAT) in relation to hair follicles, skin defense, and fibrosis. DWAT, distinct from subcutaneous white adipose tissue (SWAT), is crucial for regulating hair cycles and maintaining skin integrity. It interacts with hair follicles, influencing their cycles through signaling pathways and promoting hair growth. DWAT also provides antibacterial protection, particularly against Staphylococcus aureus, and plays a role in anti-inflammatory responses and extracellular matrix remodeling during wound healing. The study highlights DWAT's potential involvement in conditions like alopecia and its therapeutic potential in promoting wound healing and regulating fibrosis, especially in diabetic patients and conditions like systemic sclerosis. Further research is needed to fully understand DWAT's development and functions, particularly in humans.