Endothelial Dysfunction and Mechanobiology in Pathological Cutaneous Scarring: Lessons Learned from Soft Tissue Fibrosis

Abstract

Hypertrophic scars/keloids are pathogenic scars that are characterized by collagen and fibroblast accumulation. The endothelia in the lesions are mechanosensitive and participate actively in the pathogenesis of these scars. The present review summarizes how endothelium responds to mechanical stimuli such as shear, stretch, and hydrostatic pressure. It also shows that in heart, liver, kidney, and lung fibrosis, endothelial dysfunctions (EDs) associate with changes in vascular tone, endothelial permeability, coagulation, and vasomodulation that result in inflammation, hypertension, and coagulation. Pathological scars exhibit similar EDs during their development and progression. Mechanopharmaceutical or mechanotherapeutic interventions that rescue EDs may be useful scar treatments.

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