Introduction: Human limbal epithelial cells (huLEC) have been used for clinical purposes in ocular surface diseases to promote rapid re-epithelisation and restore corneal epithelium integrity. However, in Mexico this technique has not been fully developed. This study was conducted to characterize the huLEC phenotype expanded in vitro using a cell culture technique.
Material And Methods: Cells were obtained from limbal tissue, cultured in KSFM medium and analyzed for the expression of vimentin, K, K19, p63, K12, by flow cytometry and immuno-fluorescence.
Results: The phenotype of cultured cells was vimentin+K+K19+ p63+K12-.
Conclusions: Our results suggest that under these culture conditions huLEC maintained their stem cell phenotype. This culture technique could be used for clinical purposes in Mexico.
Download full-text PDF |
Source |
---|
Nat Commun
December 2024
Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan.
Immune checkpoint inhibitors (ICI) represent new anticancer agents and have been used worldwide. However, ICI can potentially induce life-threatening severe cutaneous adverse reaction (SCAR), such as Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN), hindering continuous ICI therapy. We examine 6 cohorts including 25 ICI-induced SJS/TEN patients and conduct single-cell RNA sequencing (scRNA-seq) analysis, which shows overexpression of macrophage-derived CXCL10 that recruits CXCR3 cytotoxic T lymphocytes (CTL) in blister cells from ICI-SJS/TEN skin lesions.
View Article and Find Full Text PDFOphthalmic Plast Reconstr Surg
January 2025
Hariram Motumal Nasta & Renu Hariram Nasta Ophthalmic Plastic Surgery Services.
Purpose: To report the long-term surgical outcomes of acquired ankyloblepharon correction using mucous membrane graft.
Methods: Five eyes of 4 patients (median age, 19 years) with acquired ankyloblepharon were managed using eyelid splitting and mucous membrane graft anchored to the recti muscles on the bulbar surface in the respective quadrant and onto the bare tarsal surface. Outcome measures include a change in the palpebral fissure width, ability to fit scleral contact lenses, visual acuity, and cosmesis.
Curr Issues Mol Biol
November 2024
Department of Anatomy, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia.
The limited availability of corneal tissue grafts poses significant challenges in the treatment of corneal blindness. Novel treatment utilizes stem cell grafts transplanted from the healthy side of the cornea to the damaged side. However, this procedure is only possible for those who have one-sided corneal blindness.
View Article and Find Full Text PDFCureus
November 2024
Ophthalmology, Mamoto Eye Clinic, Higashi-Osaka, JPN.
Allergic conjunctivitis (AC) is characterized by inflammatory responses in the conjunctiva and is often complicated by atopic dermatitis and mechanical irritation. Vernal keratoconjunctivitis (VKC), a severe subtype of AC, presents unique challenges in its diagnosis and management, particularly in pediatric patients. This case report describes an eight-year-old girl with VKC who exhibited poor adherence to a prescribed regimen of 0.
View Article and Find Full Text PDFStem Cell Reports
December 2024
Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, 150 Harrison Avenue, Boston, MA 02111, USA. Electronic address:
It is widely recognized that the glycocalyx has significant implications in regulating the self-renewal and differentiation of adult stem cells; however, its composition remains poorly understood. Here, we show that the fucose-binding Aleuria aurantia lectin (AAL) binds differentially to basal cells in the stratified epithelium of the human limbus, hair follicle epithelium, and meibomian gland duct. Using fluorescence-activated cell sorting in combination with single-cell transcriptomics, we find that most epithelial progenitor cells and melanocytes in the limbus display low AAL staining (AAL) on their cell surface, an attribute that is gradually lost in epithelial cells as they differentiate into mature corneal cells.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!