Scarring and tissue fibrosis represent a significant source of morbidity in the United States. Despite considerable research focused on elucidating the mechanisms underlying cutaneous scar formation, effective clinical therapies are still in the early stages of development. A thorough understanding of the various signaling pathways involved is essential to formulate strategies to combat fibrosis and scarring. While initial efforts focused primarily on the biochemical mechanisms involved in scar formation, more recent research has revealed a central role for mechanical forces in modulating these pathways. Mechanotransduction, which refers to the mechanisms by which mechanical forces are converted to biochemical stimuli, has been closely linked to inflammation and fibrosis and is believed to play a critical role in scarring. This review provides an overview of our current understanding of the mechanisms underlying scar formation, with an emphasis on the relationship between mechanotransduction pathways and their therapeutic implications.
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http://dx.doi.org/10.1016/j.jbiomech.2014.03.031 | DOI Listing |
Adv Mater
January 2025
Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, 999077, China.
The globally prevalent rotator cuff tear has a high re-rupture rate, attributing to the failure to reproduce the interfacial fibrocartilaginous enthesis. Herein, a hierarchically organized membrane is developed that mimics the heterogeneous anatomy and properties of the natural enthesis and finely facilitates the reconstruction of tendon-bone interface. A biphasic membrane consisting of a microporous layer and a mineralized fibrous layer is constructed through the non-solvent induced phase separation (NIPS) strategy followed by a co-axial electrospinning procedure.
View Article and Find Full Text PDFFront Immunol
January 2025
International Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute (VCHRI), University of British Columbia (UBC), Vancouver, BC, Canada.
Keloid scars (KS) and hypertrophic scars (HS) are fibroproliferative wound healing defects characterized by excessive accumulation of extracellular matrix (ECM) in the dermis of affected individuals. Although transforming growth factor (TGF)-β is known to be involved in the formation of KS and HS, the molecular mechanisms responsible for its activation remain unclear. In this study we investigated Granzyme B (GzmB), a serine protease with established roles in fibrosis and scarring through the cleavage of ECM proteins, as a potential new mediator of TGF-β activation in KS and HS.
View Article and Find Full Text PDFExp Ther Med
March 2025
Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region 830000, P.R. China.
Spinal cord injury (SCI) is a severe condition that often leads to permanent functional impairments. The current treatment options are limited and there is a need for more effective treatments. Human umbilical cord mesenchymal stem cells (hUCMSCs) have shown promise in promoting neuroregeneration and modulating immune response.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Zoology, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India. Electronic address:
The pathophysiological relationship between wound healing impairment and diabetes is an intricate process. Burn injury among diabetes patients leads to neurological, vascular, and immunological abnormalities along with impaired activities of cell proliferation, collagen production, growth factors, and cytokine activities with huge bacterial infestation. In our study, we aimed to achieve a burn wound dressing material with the help of electrospun Chitosan/Polyethylene oxide/Rosmarinic acid (CS/PEO/RA) nanofibers.
View Article and Find Full Text PDFChem Biol Interact
January 2025
Department of Neurosurgery, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, P. R. China. Electronic address:
The activation of astrocytes in the injured lesion induces the progression of spinal cord injury (SCI). However, adverse side-effects during systemic administration have limited applications. Exosomes (Exos) are an emerging clinical treatment method that exerts anti-inflammatory effects by reducing pro-inflammatory factors and promoting functional recovery.
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