Investigation of healing strategies in a rat corneal opacity model with polychromatic light and stem cells injection

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dc.contributor.authorUysal, Betul Seher
dc.contributor.authorSarikaya, Burcu
dc.contributor.authorDizakar, Saadet Ozen Akarca
dc.contributor.authorKaplanoglu, Gulnur Take
dc.contributor.authorGumusderelioglue, Menemse
dc.date.accessioned2025-03-20T09:51:09Z
dc.date.available2025-03-20T09:51:09Z
dc.date.issued2024
dc.departmentİzmir Bakırçay Üniversitesi
dc.description.abstractCorneal opacities are a major cause of vision loss worldwide. However, the current therapies are suboptimal to manage the corneal wound healing process. Therefore, there is an obvious need to develop new treatment strategies that are efficient in promoting wound healing in patients with severe corneal disorders. In this study, we investigated and compared the efficacy of adipose-derived mesenchymal stem cells (ADMSCs) and photobiomodulation (PBM) with polychromatic light in the NIR (600-1200 nm) alone and in combination, on corneal opacity, inflammatory response, and tissue architecture in a rat corneal opacity model created by mechanical injury. All animals were divided into four groups randomly following the injury: injury only (no treatment), ADMSCs treatment, PBM treatment and combined (ADMSCs+PBM) treatment (n = 12 eyes per group). At the 10th and 30th day following injury, corneal opacity formation, neovascularization, and corneal thickness were assessed. On the 30th day the harvested corneas were analyzed by transmission electron microscopy (TEM), histological evaluation, immunohistochemical (IHC) staining and real-time polymerase chain reaction (RT-PCR). On day 30, the corneal opacity score, neovascularization grade, and corneal thickness in all treatment groups were significantly lower in comparison with the untreated injured corneas. The TEM imaging and H&E staining together clearly revealed a significant enhancement in corneal regeneration with improved corneal microenvironment and reduced vascularization in the combined administration of PBM and ADMSCs compared to treatment of PBM and ADMSCs alone. In addition, the IHC staining, and RT-PCR analysis supported our hypothesis that combining ADMSCs therapy with PBM alleviated the inflammatory response, and significantly decreased scar formation compared to either ADMSCs or PBM alone during the corneal wound healing.
dc.description.sponsorshipGazi University Scientific Research Projects Coordination Unit [TCD-2021-6929]
dc.description.sponsorshipWe would like to thank Gazi University Laboratory Animal Breeding and Experimental Research Center (GUDAM) for carrying out the animal experiments, Dr. Fatma Helvac & imath;og lu, Expert Biologist Ece Lakse Cosar, and Lab. Technician Ayhan Yueksek for preparing the TEM samples, and Melih Uzunoglu for the statistical analysis. This study was financially supported by Gazi University Scientific Research Projects Coordination Unit (Project no: TCD-2021-6929) .
dc.identifier.doi10.1016/j.jphotobiol.2024.112874
dc.identifier.issn1011-1344
dc.identifier.issn1873-2682
dc.identifier.pmid38422971
dc.identifier.scopus2-s2.0-85186529607
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jphotobiol.2024.112874
dc.identifier.urihttps://hdl.handle.net/20.500.14034/2442
dc.identifier.volume253
dc.identifier.wosWOS:001199158700001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofJournal of Photochemistry and Photobiology B-Biology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250319
dc.subjectPhotobiomodulation
dc.subjectPolychromatic light
dc.subjectAdipose-derived mesenchymal stem cells
dc.subjectRat corneal opacity model
dc.subjectMechanical injury
dc.subjectCorneal wound healing
dc.titleInvestigation of healing strategies in a rat corneal opacity model with polychromatic light and stem cells injection
dc.typeArticle

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