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Defensa innata: evidencia de la memoria en la inmunidad de los invertebrados
Joachim Kurtz1, Karoline Franz
1Department of Evolutionary Ecology, Max Planck Institute of Limnology, August-Thienemann Strasse 2, 24306 Plön, Germany. kurtz@mpil-ploen.mpg.de
Nature
|September 5, 2003
Resumen
Los invertebrados pueden poseer una memoria inmune específica. Este estudio muestra un copépodo.
Área de la Ciencia:
- Inmunología Inmunología.
- Biología de los invertebrados.
- Parasitología Parasitología.
Sus antecedentes:
- La inmunidad adquirida de los vertebrados implica una memoria específica.
- Las defensas innatas de los invertebrados se consideran tradicionalmente no específicas.
- La capacidad para la memoria inmune específica en los invertebrados sigue siendo en gran medida inexplorada.
Objetivo del estudio:
- Para investigar si los sistemas de defensa de los invertebrados exhiben una memoria inmunológica específica.
- Para determinar si la exposición previa a un parásito influye en la respuesta a un parásito posterior, antigénicamente similar o diferente.
Principales métodos:
- Utilizó un sistema modelo que incluía un copépodo (crustáceo) y una tenia parásita.
- Evaluar el éxito de la reinfección basado en el parecido antigénico entre parásitos encontrados consecutivamente.
Principales resultados:
- El éxito de la reinfección fue significativamente influenciado por la similitud antigénica entre las infecciones iniciales y posteriores de tenia.
- Esto sugiere un mecanismo de reconocimiento basado en la memoria en el sistema de defensa del copépodo.
Conclusiones:
- Los hallazgos desafían la suposición de inmunidad innata no específica en los invertebrados.
- La evidencia sugiere que los sistemas de defensa de los invertebrados pueden poseer una memoria inmunológica específica.
- La semejanza antigénica juega un papel crítico en las respuestas inmunes de los invertebrados a las infecciones secuenciales.
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