The corneal wound healing response to Riboflavin-ultraviolet-crosslinking (RIB-UV-CXL) depends on the specific method used in treatment. The predominance of clinical evidence supports the classical "epithelium-off" RIB-UV-CXL method being more effective in halting ectasia progression than various "epithelium-on" methods, where the corneal epithelium is maintained intact. Corneal transparency results from the precise organization of collagen fibrils and extracellular matrix, along with transparent keratocytes. The mild and transient stromal opacity seen after standard RIB-UV-CXL is linked to changes in hydration, cellularity, and matrix composition. As hydration normalizes, opacity arises from the development of corneal fibroblasts and their secretion of disordered extracellular matrix materials including collagens. Over months, as the epithelial basement membrane regenerates, transitioning stromal cells either undergo apoptosis or revert to keratocan-positive keratocytes, restoring stromal transparency. In normal healing after standard RIB-UV-CXL, the stroma is eventually repopulated predominantly by keratocytes without significant persisting fibroblasts, immune cells, or myofibroblasts. Biomechanical studies have extensively explored how CXL strengthens corneal tissue, providing insight into its therapeutic mechanisms. The purpose of this review is to evaluate the wound healing response and biomechanical changes in the cornea following RIB-UV-CXL.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.exer.2025.110321 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Reconstruction of hand surgical wounds after pseudo-syndactyly correction or squamous cell carcinoma resection in patients affected from epidermolysis bullosa: a monocentric experience with a collagen-elastin dermal matrix substitute.
Dermatol Reports
February 2025
Division of Regenerative and Oncological Dermatological Surgery, Modena University Hospital.
In patients with epidermolysis bullosa (EB), surgery may be required to remove squamous cell carcinoma (SCC) of the hands or to correct pseudo-syndactyly. Dermal substitutes may represent a suitable tool to promote the healing of surgical wounds in EB. We review our experience with a collagen-elastin dermal matrix to promote surgical wound healing due to hand surgery to correct pseudo-syndactyly or SCC resection in patients affected by EB.
View Article and Find Full Text PDFCorneal Keratocytes, Fibroblasts, and Myofibroblasts Exhibit Distinct Transcriptional Profiles In Vitro.
Invest Ophthalmol Vis Sci
March 2025
Department of Bioengineering, University of Texas at Dallas, Richardson, Texas, United States.
Purpose: After stromal injury to the cornea, the release of growth factors and pro-inflammatory cytokines promotes the activation of quiescent keratocytes into a migratory fibroblast and/or fibrotic myofibroblast phenotype. Persistence of the myofibroblast phenotype can lead to corneal fibrosis and scarring, which are leading causes of blindness worldwide. This study aims to establish comprehensive transcriptional profiles for cultured corneal keratocytes, fibroblasts, and myofibroblasts to gain insights into the mechanisms through which these phenotypic changes occur.
View Article and Find Full Text PDFCurcumin-Functionalized Electrospun Nanofibrous Membranes with Antimicrobial Activity for Wound Healing.
Nanomaterials (Basel)
March 2025
Department of Materials Science and Engineering, University of Crete, 700 13 Heraklion, Greece.
Chronic or improperly healed wounds, either as a result of extended trauma or prolonged inflammatory response, affect a significant percentage of the world population. Hence, there is a growing interest in the development of biomimetic scaffolds that expedite wound closure at the early stages. Curcumin (Cur) is a plant-derived polyphenol with antimicrobial activity, and it accelerates the wound contraction rate.
View Article and Find Full Text PDFElectroactive Dressing with Selective Sorption of Exudate Enables Treatment of Complicated Wound.
Adv Mater
March 2025
PCFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China.
Exudate management and cell activity enhancement are vital to complicated wound healing. However, current exudate management dressings indiscriminately remove exudate, which is detrimental to cell activity enhancement. Herein, a novel class of electroactive bilayer (cMO/PVA) dressing is developed by constructing manganese oxide nanoneedle-clusters decorated commercial carbon cloth (MO), in situ casting polyvinyl alcohol (PVA) hydrogel, and finally charging.
View Article and Find Full Text PDFAn assessment of synthesis technique for porous nano and micro fibrous wound dressings with natural oil supplements.
J Appl Biomater Funct Mater
March 2025
Department of Nanoscience and Nanotechnology, Erciyes University, Kayseri, Turkey.
For millennia, aloe vera (AV) and eucalyptus oil (EO) have been recognized as natural sources of healing and have been utilized for medicinal purposes in the realm of health. As an attempt to treat pressure sores, AV and eucalyptus oil were added as supplements to biocompatible and biodegradable poly (ethylene oxide) (PEO) polymer to synthesize nano and micro fibrous wound dressings by the electrospinning process. Additive solubility in polymeric matrix is the key parameter to achieve the synthesis of homogeneous fibers with controlled release of therapeutic oils, cure and humidity; therefore, lecithin as herbal (soybean) based emulsifier was used to control additive/polymer solubility.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!