2014, Número 3
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Rev Biomed 2014; 25 (3)
Vitiligo: Hipótesis autoinmune
Zúñiga-Rosales Y, González-Herrera Y, Miyares-Díaz E, Rodríguez-Pelier CV
Idioma: Español
Referencias bibliográficas: 59
Paginas: 145-155
Archivo PDF: 230.11 Kb.
RESUMEN
Introducción. El vitiligo es una hipomelanosis
adquirida que se manifiesta clínicamente por la
aparición progresiva de máculas acrómicas en la
piel, de gran repercusión estética y que produce
una notable afectación de la autoestima para las
personas que la padecen. Su etiopatogenia es desconocida.
Diferentes teorías se han presentado,
siendo la hipótesis autoinmune la más aceptada
en la actualidad.
Objetivo. Analizar las evidencias que soportan
que el vitiligo cumple los criterios que definen
el carácter autoinmune de las enfermedades humanas.
Método. Se realizó una revisión del tema a través
de la búsqueda de artículos científicos fundamentalmente,
de los últimos 15 años en PubMed
y en revistas de Dermatología e Inmunología,
seleccionando los disponibles con texto completo
y con información novedosa.
Desarrollo. Se exponen las principales evidencias
en el vitiligo de los criterios directos, indirectos
y circunstanciales de enfermedades autoinmunes.
La demostración de linfocitos T autorreactivos en
la piel lesionada y perilesionada, la detección de
autoanticuerpos contra antígenos melanocíticos y
órgano-específicos en el suero de los pacientes,
la frecuente asociación con otras enfermedades
autoinmunes y con determinados alelos del MHC
II, la existencia de modelos animales y la respuesta
terapéutica a inmunosupresores tópicos son
algunos de los hallazgos que soportan el carácter
autoinmune de esta enfermedad.
Conclusiones. A pesar que la etiología del vitiligo
no está bien definida, existe fuerte evidencia que
puede ser clasificada como una enfermedad autoinmune.
Su frecuente asociación con otras patologías
autoinmunitarias indica que la evaluación de
pacientes con vitiligo debe incluir exámenes que
permitan el diagnóstico temprano de las mismas.
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