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Evaluation of ABCG2 and p63 expression in canine cornea and cultivated corneal epithelial cells.
- Source :
-
Veterinary ophthalmology [Vet Ophthalmol] 2015 Jan; Vol. 18 (1), pp. 59-68. Date of Electronic Publication: 2014 Jan 28. - Publication Year :
- 2015
-
Abstract
- Objective: To examine the expressions of ABCG2 and p63 in canine corneal epithelia and to evaluate their significance in corneal regeneration.<br />Procedures: Canine corneal and limbal epithelial cells were obtained from five healthy beagle dogs. We analyzed the morphological properties of cultivated limbal and corneal epithelial cells. We compared the expressions of ABCG2 and p63 in the limbus and central cornea by immunohistochemistry and real-time quantitative PCR. We analyzed the expression of these markers in cultivated cells by immunocytochemistry and real-time quantitative PCR.<br />Results: The limbal epithelial cells were smaller and proliferated more rapidly than the corneal epithelial cells in primary cultures. The corneal cells failed to be subcultured, whereas the limbal cells could be subcultured with increasing cell size. ABCG2 was localized in the basal layer of the limbal epithelium, and p63 was widely detected in the entire corneal epithelia. ABCG2 expression was significantly higher, and p63 was slightly higher in the limbus compared with the central cornea. ABCG2 was detected only in limbal cells in primary culture, not in corneal cells or passaged limbal cells. p63 was detected in both limbal and corneal cells and decreased gradually in the limbal cells with the cell passages.<br />Conclusions: ABCG2 was localized in canine limbal epithelial cells, and p63 was widely expressed in canine corneal epithelia. ABCG2 and p63 could prove to be useful markers in dogs for putative corneal epithelial stem cells and for corneal epithelial cell proliferation, respectively.<br /> (© 2014 American College of Veterinary Ophthalmologists.)
- Subjects :
- ATP-Binding Cassette Transporters biosynthesis
Animals
Cells, Cultured
Cornea metabolism
Cornea ultrastructure
Dogs
Epithelium, Corneal cytology
Epithelium, Corneal metabolism
Epithelium, Corneal ultrastructure
Limbus Corneae chemistry
Limbus Corneae cytology
Limbus Corneae metabolism
Limbus Corneae ultrastructure
Microscopy, Confocal veterinary
Real-Time Polymerase Chain Reaction veterinary
Tumor Suppressor Proteins biosynthesis
ATP-Binding Cassette Transporters analysis
Cornea chemistry
Epithelium, Corneal chemistry
Tumor Suppressor Proteins analysis
Subjects
Details
- Language :
- English
- ISSN :
- 1463-5224
- Volume :
- 18
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Veterinary ophthalmology
- Publication Type :
- Academic Journal
- Accession number :
- 24471763
- Full Text :
- https://doi.org/10.1111/vop.12147