Calreticulin accelerates corneal wound closure and mitigates fibrosis: Potential therapeutic applications.

Autor: Mishra S; Department of Medicine, Division of Precision Medicine, New York University School of Medicine Langone Health, New York, New York, USA., Manzanares MA; Department of Medicine, Division of Precision Medicine, New York University School of Medicine Langone Health, New York, New York, USA., Prater J; Powered Research, Research Triangle Park, North Carolina, New York, USA., Culp D; Powered Research, Research Triangle Park, North Carolina, New York, USA., Gold LI; Department of Medicine, Division of Precision Medicine, New York University School of Medicine Langone Health, New York, New York, USA.; Department of Pathology, New York University School of Medicine Langone Health, New York, New York, USA.
Jazyk: angličtina
Zdroj: Journal of cellular and molecular medicine [J Cell Mol Med] 2024 Mar; Vol. 28 (5), pp. e18027. Date of Electronic Publication: 2023 Nov 20.
DOI: 10.1111/jcmm.18027
Abstrakt: The processes involved in regeneration of cutaneous compared to corneal tissues involve different intrinsic mechanisms. Importantly, cutaneous wounds involve healing by angiogenesis but vascularization of the cornea obscures vision. Previous studies showed that topically applied calreticulin (CALR) healed full-thickness excisional animal wounds by a tissue regenerative process markedly enhancing repair without evoking angiogenesis. In the current study, the application of CALR in a rabbit corneal injury model: (1) accelerated full wound closure by 3 days (2) accelerated delayed healing caused by corticosteroids, routinely used to prevent post-injury inflammation, by 6 days and (3) healed wounds without vascularization or fibrosis/hazing. In vitro, CALR stimulated proliferation of human corneal epithelial cells (CE) and corneal stromal cells (keratocytes) by 1.5-fold and 1.4-fold, respectively and induced migration of CE cells and keratocytes, by 72% and 85% compared to controls of 44% and 59%, respectively. As a marker of decreased fibrosis, CALR treated corneal wounds showed decreased immunostaining for α-smooth muscle actin (α-SMA) by keratocytes and following CALR treatment in vitro, decreased the levels of TGF-β2 in human CE cells and α-SMA in keratocytes. CALR has the potential to be a novel therapeutic both, to accelerate corneal healing from various injuries and in conjunction with corticosteroids.
(© 2023 The Authors. Journal of Cellular and Molecular Medicine published by Foundation for Cellular and Molecular Medicine and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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