Improvement of Corneal Nerve Regeneration in Diabetic Rats Using Wharton's Jelly-Derived Mesenchymal Stem Cells and Their Conditioned Medium

Overview

Journal Int J Mol Cell Med

Specialty Genetics

Date 2023 Aug 22

PMID 37605742

Authors

Pitra Ariesta Shinta Dewi

Ratna Sitompul

Jeanne Adiwinata Pawitan

Aroem Naroeni

Radiana Dewayani Antarianto

Affiliations

Soon will be listed here.

Abstract

To investigate the efficacy of Wharton's jelly mesenchymal stem cells (WJSCs) and their conditioned medium (CM) for corneal nerve regeneration in rats with diabetic keratopathy. Streptozotocin (STZ)-induced male diabetic (DM) rats (250-300 g) were divided into four groups (n=7/group): Control, DM, DM with WJSCs (DM+WJ), and DM with CM treatment (DM+CM). DM+WJ and DM+CM group received WJSCs or CM, respectively, topically with eye drops. Corneal sensibility, corneal epithelial layer integrity, histology, expression of GAP-43 and TUBB3 on mRNA level and their immunohistochemical expression were examined after two weeks of treatment. There were changes in corneal sensibility and corneal integrity between normal control and diabetic groups with/without WJSC or CM injection. Total central corneal thickness was significantly higher in DM+CM (249.81 ± 43.85 μm) than in control (174.72 ± 44.12 μm, P=0.004) and DM groups (190.15 ± 9.63 μm, P=0.03). GAP-43 mRNA expression levels of DM+WJ and DM+CM groups were higher compared with DM and control groups. TUBB3 mRNA level was increased after CM (P=0.047), but not after WJSCs treatment (P=1.00). GAP-43 and TUBB3 immunohistochemical expression of nerve fibers along the epithelial layer significantly increased in DM+WJ and DM+CM compared with DM group. Our findings showed that WJSCs and their CM improved corneal nerve regeneration in rats with diabetic keratopathy.

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