Strengthening the Cellular Function of Dermal Fibroblasts and Dermal Papilla Cells Using Nanovesicles Extracted from Stem Cells with Blue Light-Based Photobiomodulation Technology

The study explores the use of nanovesicles (NVs) derived from human adipose-derived stem cells (hADSCs) and enhanced by blue light-based photobiomodulation (PBM) to improve the function of human dermal fibroblasts (hDFs) and hair follicle dermal papilla cells (HFDPCs). These NVs, which are non-immunogenic and biologically stable, promote cellular activities and have shown promise in regenerative medicine. Blue light irradiation optimizes NVs by inducing reactive oxygen species production, which activates signaling pathways that enhance angiogenic and regenerative markers. The study found that blue light-irradiated NVs significantly improved hDF proliferation, ECM synthesis, and HFDPC functionality, suggesting a safer and more efficient therapeutic strategy for treating skin and hair disorders, including conditions like alopecia.