purpose: to develop a nanofibrous polycaprolacton (pcl) substrate for limbal stem cell (lsc) expansion that can serve as a potential alternative substrate to replace human amniotic membrane. methods: the human limbal stem cells (lscs) were used to evaluate the biocompatibility of substrates (nanofibrous scaffold, and human amniotic membrane) regarding cellular phenotypic profile, viability, pro...

PURPOSE Limbal stem cell deficiency is a challenging clinical problem and the current treatment involves replenishing the depleted limbal stem cell (LSC) pool by either limbal tissue transplantation or use of cultivated limbal epithelial cells (LEC). Our experience of cultivating the LEC on denuded human amniotic membrane using a feeder cell free method, led to identification of mesenchymal cel...

PURPOSE To develop a mouse model of limbal stem cell deficiency (LSCD) by topical administration of benzalkonium chloride (BAC). METHODS BAC solutions (0%-0.5%) were applied to the mouse ocular surface for 4 weeks. Corneal neovascularization, inflammation, and epithelial status were observed under slit-lamp microscope. The eyeball and ocular surface tissues were collected at 4 and 12 weeks an...

PURPOSE To describe a simple technique of cultivating human corneal epithelial stem cells using an Epilife culture medium under serum- and feeder-free conditions. METHODS Cadaveric donor limbal corneal epithelial cells were cultured on denuded amniotic membranes using an explant technique that was free of serum and feeder cells in the Epilife medium containing a growth supplement of defined c...

introduction to evaluate the expression patterns of cytokeratin (k) 12, 13, and 19 in normal epithelium of the human ocular surface to determine whether k13 could be used as a marker for conjunctival epithelium. methods: total rna was isolated from the human conjunctiva and central cornea. those transcripts that had threefolds or higher expression levels in the conjunctiva than the cornea were ...

Regenerative medicine for the cornea provides a novel treatment strategy for patients with corneal diseases instead of conventional keratoplasty. Limbal transplantation has been performed in patients with a limbal stem cell deficiency. This procedure requires long-term immunosuppression that involves high risks of serious eye and systemic complications, including infection, glaucoma, and liver ...