Research Article: Exosome Derived from Mesenchymal Stem Cells Alleviates Hypertrophic Scar by Inhibiting the Fibroblasts via TNFSF-/HSPG Signaling Pathway
Abstract:
Hypertrophic scar (HS) is a fibroproliferative disease caused by abnormal skin tissue repair after burns, lacerations, and surgical trauma.– It is currently believed that wound repair is a complex dynamic process in which multiple repair cells, growth factors and extracellular matrix interact, in which fibroblasts play a pivotal role. Fibroblasts fill tissue defects by proliferating, synthesizing and secreting a large amount of ECM. However, under the action of certain cytokines, excessive proliferation and secretion of fibroblasts lead to abnormal deposition of ECM, which can form HS. HS are often accompanied by erythema, bumps, itching, and pain, leading to organ dysfunction and motor loss at different degrees, making HS an increasingly serious social health problem.– Currently, the treatment for HS includes surgical excision, laser therapy, radiation therapy, pressure therapy and medication. The surgical incision is an invasive procedure that may result in new scarring,– and intradermal injection is usually accompanied by adverse reactions. However, the results remain unsatisfactory due to individual differences. Thus, it is important to investigate the pathogenesis of HS and search new therapeutic strategies for HS.
Introduction:
Hypertrophic scar (HS) is a fibroproliferative disease caused by abnormal skin tissue repair after burns, lacerations, and surgical trauma. – It is currently believed that wound repair is a complex dynamic process in which multiple repair cells, growth factors and extracellular matrix interact, in which fibroblasts play a pivotal role. Fibroblasts fill tissue defects by proliferating, synthesizing and secreting a large amount of ECM. However, under the action of certain cytokines, excessive proliferation and…
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