López-Moreno HS

Idioma: Español
Referencias bibliográficas: 40
Paginas: 145-152
Archivo PDF: 113.34 Kb.

RESUMEN

La cisticercosis y la hidatidosis son las parasitosis causadas por los metacéstodos de Taenia solium y de Echinococcus multilocularis (o E. granulosus), respectivamente. El estudio de las enfermedades parasitarias ofrece uno de los mejores modelos in vivo para el estudio de la división efectora de las subpoblaciones de linfocitos T cooperadores CD4+, designadas Th1 y Th2 de acuerdo con el patrón de citocinas que producen. La polarización hacia alguno de estos fenotipos puede marcar la diferencia entre una respuesta inmune celular protectora o una respuesta inmune permisiva para la infección. La participación de los linfocitos Th1 y Th2 en las cestodiasis tisulares (cisticercosis e hidatidosis) ha sido estudiada en modelos experimentales de ratón y en pacientes humanos; en ambos casos los resultados sugieren que en los individuos con cisticercosis o hidatidosis la respuesta inmune celular está polarizada hacia un fenotipo Th2. En tanto que en los individuos donde los parásitos son destruidos, o su desarrollo está limitado, la respuesta inmune celular se encuentra polarizada hacia un fenotipo Th1.

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