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The constant exposure of ocular surface to external environment and then to several microbial agents is often related to the pathogenesis of various inflammatory eye disorders. In the present study α-Smooth Muscle Actin (α-SMA) and Langerin CD/207 expression and function was investigated in a rabbit corneal keratitis. The inflammation was induced by the secreted form of glycoprotein B (gB1s) of HSV-1, in an ex vivo rabbit corneal model. α-SMA is often used as a marker for myofibroblasts. In this study, for the first time, we show α-SMA positive corneal epithelial cells, during HSV-1 cornea inflammation, demonstrating a crucial role in wound healing, especially during remodeling phase. Furthermore, we show the presence of Dendritic Cells Langerin CD/207 positive, located mainly in the basal epithelial layer and in corneal stroma during the inflammatory processes. Our result validating the ex vivo organotypic rabbit corneal model, for the study about pathogenesis of HSV-1 ocular infection.
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http://dx.doi.org/10.1016/j.tice.2020.101384 | DOI Listing |
Invest Ophthalmol Vis Sci
September 2025
Truhlsen Eye Institute, University of Nebraska Medical Center, Omaha, Nebraska, United States.
Purpose: This study reports the changes in aqueous humor dynamics (AHD) and biometric parameters associated with growth and maturation in male Dutch-belted rabbits.
Methods: In this prospective observational study, 20 male Dutch-belted rabbits were studied at 4-weekly intervals starting at 10 weeks through 38 weeks of age. Data collected included intraocular pressure (IOP), aqueous flow, outflow facility by tonography and fluorophotometry (acetazolamide method), episcleral venomanometry, central corneal thickness, corneal diameter, anterior chamber depth, and testicular volume.
Transl Vis Sci Technol
September 2025
Ineye Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Purpose: To evaluate Periplaneta americana extract (PAE) effects on corneal epithelial healing and fibrosis after superficial lamellar keratectomy (SLK) in rabbits.
Methods: SLK was performed on the right eyes of 48 New Zealand White rabbits, randomized into three treatment groups (n = 16/group): normal saline (NS), Tobradex eye drops (TE), and PAE group. Corneal opacity and epithelial defect area were quantified using slit-lamp imaging at postoperative days 3, 7, 14, and 28 (D3, D7, D14, and D28) and scored via the grading system.
Exp Eye Res
September 2025
Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940, Leioa, Spain; BEGIKER Ophthalmology Research Group, Biobizkaia Health Research Institute, 48903, Barakaldo, Spain. Electronic address:
The objective of this study was to develop a reliable, cost-effective, and rapid in vitro model employing real-time PCR to assess inflammatory responses in hydrogel-based systems, and to comparatively evaluate the anti-inflammatory efficacy of human serum (HS), serum derived from plasma rich in growth factors (sPRGF), and human amniotic membrane extracts (HAMe) incorporated into gelatin-based hydrogels. An in vitro model of corneal inflammation was established by quantifying IL-1β expression via qPCR in TNFα-stimulated SV-40 immortalised human corneal epithelial (HCE) cells. Hydrogels functionalised with HS, sPRGF, or HAMe sourced from proximal, medial, distal, or pooled amniotic regions were evaluated for their anti-inflammatory potential.
View Article and Find Full Text PDFExp Eye Res
August 2025
Department of Surgery and Radiology, Faculty of Veterinary Medicine Science, Islamic Azad University, Karaj, Iran.
Corneal ulcers pose a significant threat to vision and require timely, effective intervention to prevent permanent damage. This experimental study evaluated the therapeutic potential of combining crushed limbal tissue with either bovine amniotic membrane (AM) or a conjunctival flap to enhance corneal wound healing in a rabbit model. Twenty-five New Zealand white rabbits were randomly assigned to five groups: (G1) untreated control, (G2) AM alone, (G3) conjunctival flap alone, (G4) AM with crushed limbal tissue, and (G5) conjunctival flap with crushed limbal tissue.
View Article and Find Full Text PDFVet Sci
August 2025
Faculty of Veterinary Medicine, Université de Montréal, 3200 Rue Sicotte, Saint-Hyacinthe, QC J2S 2M2, Canada.
Pro-regenerative corneal implants are being developed to improve corneal healing for companion animals in clinical practice. This pilot study evaluated early corneal tissue and nerve regeneration using biosynthetic collagen-analog hydrogels (CAH) in liquid and solid forms. Their efficacy was compared to each other and to allografts on nine white New Zealand rabbits, divided in three groups of three.
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