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Updated: Jul 29, 2026
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Visualization of the Interstitial Cells of Cajal (ICC) Network in Mice
Published on: July 27, 2011
El gen W/kit es requerido para las células intersticiales del Cajal y para la actividad del marcapasos intestinal
J D Huizinga1, L Thuneberg, M Klüppel
1Department of Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada.
Nature
|January 26, 1995
Resumen
Las células intersticiales de Cajal (ICC) impulsan la actividad del marcapasos intestinal. Este estudio revela que ICC expresa la tirosina quinasa del receptor Kit, vinculando las mutaciones del gen Kit a la ausencia de ICC y la motilidad intestinal deteriorada.
Área de la Ciencia:
- Gastroenterología y Gastroenterología.
- Biología celular Biología celular.
- Biología del desarrollo Biología del desarrollo.
Sus antecedentes:
- La actividad del marcapasos intestinal de los mamíferos genera contracciones fásicas.
- El origen celular de esta actividad intrínseca sigue sin estar claro.
- Las células intersticiales de Cajal (ICC) y las células del músculo liso son estimuladores propuestos.
Objetivo del estudio:
- Para dilucidar la base celular de la actividad del marcapasos intestinal de los mamíferos.
- Para determinar el papel de las células intersticiales de Cajal (ICC) en la motilidad intestinal.
Principales métodos:
- Investigó la expresión de la tirosina quinasa del receptor Kit en ICC.
- Se analizaron ratones con mutaciones en el locus dominante de manchas blancas (W) (mutaciones del gen Kit).
Principales resultados:
- Se encontró que las células intersticiales de Cajal (ICC) expresan la tirosina quinasa del receptor Kit.
- Los ratones con mutaciones en el gen Kit carecían de la red ICC asociada con el plexo de Auerbach.
- Estos ratones también exhibieron ausencia de actividad del marcapasos intestinal.
Conclusiones:
- La tirosina quinasa del receptor Kit es crucial para el desarrollo y/o mantenimiento de la red ICC.
- Las CCI son esenciales para generar la actividad del marcapasos intestinal y coordinar las contracciones intestinales.
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