2007, Número 3
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Gac Med Mex 2007; 143 (3)
Caracterización fenotípica de células epiteliales limbales humanas expandidas in vitro
Luna-Baca GA, Garfias Y, Robles-Contreras A, Jiménez-Martínez MC
Idioma: Español
Referencias bibliográficas: 27
Paginas: 183-187
Archivo PDF: 529.35 Kb.
RESUMEN
Introducción: Las células epiteliales limbales humanas (CELhu) han sido utilizadas en la clínica para promover la rápida reepitelización en enfermedades de la superficie ocular con la finalidad de restaurar la integridad del epitelio corneal. Sin embargo, esta técnica aún no ha sido desarrollada en nuestro país. El objetivo de este estudio fue desarrollar una técnica de cultivo de CELhu in vitro y caracterizar su fenotipo.
Material y métodos: Las células fueron obtenidas de tejido limbal, cultivadas en medio KSFM y analizadas para la expresión de vimentina, K, K19, p63 y K12 por citometría de flujo e inmunofluorescencia.
Resultados: El fenotipo de las células cultivadas fue vimentina
+K
+K19
+p63
+K12-.
Conclusiones: Nuestros resultados sugieren que bajo estas condiciones de cultivo, las CELhu mantuvieron el fenotipo de célula pluripotencial. Esta técnica de cultivo podría ser utilizada con propósitos clínicos en nuestro país.
REFERENCIAS (EN ESTE ARTÍCULO)
Davanger M, Evensen A. Role of the pericorneal papillary structure in renewal of corneal epithelium. Nature 1971;229:560-561.
Schermer A, Galvin S, Sun TT. Differentiation-related expression of a major 64K corneal keratin in vivo and in culture suggests limbal location of corneal epithelial stem cells. J Cell Biol 1986;103:49-62.
Tseng SC. Concept and application of Limbal stem cells. Eye 1989; 3:141-157.
Potten CS, Loeffler M. Stem cells: attributes, cycles, spirals, pitfalls and uncertainties. Lessons for and from the crypt. Development 1990;110:1001-1020.
Boulton M, Albon J. Stem cells in the eye. Int J Biochem Cell Biol 2004; 36:643-657.
Chee KY, Kicic A, Wiffen SJ. Limbal Stem Cells: The search for a marker, Clin Experiment Ophthalmol 2006; 34:64-73.
Lehrer MS, Sun TT, Lavker RM. Strategies of epithelial repair: modulation of stem cell and transit amplifying cell proliferation. J Cell Sci 1998;111:2867-2875.
Kruse FE, Volcker HE. Stem cells, wound healing, growth factors and angiogenesis in the cornea. Curr Opin Ophthalmol 1997;8:46-54.
Dua HS, Azuaro-Blanco A. Limbal stem cells of the corneal epithelium. Surv Ophthalmol 2000;44:415-425.
Sangwan VS. Limbal stem cells in health and disease. Biosci Rep 2001;21:385-405.
Lavker RM, Tseng SC, Sun TT. Corneal epithelial stem cells at the limbus: looking at some old problems from a new angle. Exp Eye Res 2004;78:433-446.
Sun TT, Lavker RM. Corneal epithelial stem cells: past, presence, and future. J Investig Dermatol Symp Proc 2004;9:202-207.
Charukamnoetkanok P. Corneal stem cells: bridging the knowledge gap. Semin Ophthalmol 2006;21:1-7.
Wagoner MD. Chemical injuries of the eye: Current concepts in pathophysiology and therapy. Surv Ophthalmol 1997;41:275-313.
Chiou AG, Florakis GJ, Kasim M. Management of conjunctival cicatrizing diseases and severe ocular dysfunction. Surv Ophthalmol 1998;43:19-46.
Pellegrini G, Traverso CE, Franzi AT, Zingirian M, Cancedda R, De Luca M. Long-term restoration of damaged corneal surfaces with autologous cultivated epithelium. Lancet 1997;349:990-993.
Pellegrini G, Golisano O, Paterna P, Lambiase A, Bonini S, Rama P, De Luca M. Location and clonal analysis of stem cells and their differentiated progeny in the human ocular surface. J Cell Biol 1999;145:769-782.
Tsubota K, Satake Y, Kaido M, Shinozaki N, Shimmura S, Bissen-Miyajima H, Shimazaki J. Treatment of severe ocular surface disorders with corneal epithelial stem-cell transplantation. New England Journal of Medicine 1999;340:1697-1703.
Tsai RJ, Li LM, Chen JK. Reconstruction of damaged corneas by transplantation of autologous limbal epithelial cells. New England Journal of Medicine 2000;343:86-93.
Koizumi N, Inatomi T, Suzuki T, Sotozono C, Kinoshita S. Cultivated corneal epithelial stem cell transplantation in ocular surface disorders. Ophthalmology 2001;108:1569-1574.
Koizumi N, Inatomi T, Suzuki T, Sotozono C, Kinoshita S. Cultivated corneal epithelial transplantation for ocular surface reconstruction in acute phase of Stevens-Johnson syndrome. Arch Ophthalmol 2001;119:298-300.
Jester JV, Ho-Chang J. Modulation of cultured corneal keratocyte phenotype by growth factors/cytokines control in vitro contractility and extracellular matrix contraction. Exp Eye Res 2003;77:581-592.
Kim HS, Jun Song X, de Paiva CS, Chen Z, Pflugfelder SC, Li DQ. Phenotypic characterization of human corneal epithelial cells expanded ex vivo from limbal explant and single cell cultures. Exp Eye Res 2004;79:41-49.
Schlotzer-Schrehardt U, Kruse FE. Identification and characterization of Limbal stem cells. Exp Eye Res 2005;81:247-264.
Wolosin J.M. Cell markers and the side population phenotype in ocular surface epithelial stem cell characterization and isolation. Ocul Surf 2006;4:10-23.
Jimenez-Martinez MC, Mejia H, Linares M, Santacruz C, Sanchez-Navarro A, Suarez R, Garfias Y. Intracellular expression of interleukin-4 and interferongamma by a mycobacterium tuberculosis antigen-stimulated CD4+ CD57+ Tcell subpopulation with memory phenotype in tuberculosis patients. Immunology 2004;111:100-106.
van der Velden LA, Schaafsma HE, Manni JJ, Ramaekers FC, Kuijpers W. Cytokeratin expression in normal and (pre) malignant head and neck epithelia: overview. Head Neck 1993;15:133-146.