Video Experimental Relacionado
Updated: Sep 10, 2025
08:22
A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
Published on: December 1, 2017
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Trastorno del desarrollo neurológico asociado: tres nuevos individuos de familias no relacionadas
Jessica Archer1, Shuxiang Goh2, Christina Miteff3
1Hunter Genetics, Waratah, NSW 2298, Australia.
Genes
|August 28, 2025
Resumen
Las variantes bialélicas en el gen CRELD1 están vinculadas a un trastorno del desarrollo neurológico distinto. Este estudio amplía el espectro clínico y genético conocido de los trastornos del desarrollo neurológico asociados con CRELD1.
Área de la Ciencia:
- La genética
- Biología del desarrollo neurológico
- La medicina molecular
Sus antecedentes:
- CRELD1 codifica una molécula de adhesión celular.
- Inicialmente relacionado con defectos del tabique atrioventricular (AVSD).
- Recientemente asociado con trastornos del desarrollo neurológico síndromicos y no síndromicos (NDD).
Objetivo del estudio:
- Para describir a los individuos con variantes heterocigóticas compuestas de CRELD1.
- Para delinear las características clínicas compartidas y divergentes.
- Ampliar el espectro fenotípico y genético de las NDD asociadas a CRELD1.
Principales métodos:
- Secuenciación del exoma para identificar las variantes CRELD1.
- Revisión de los datos clínicos y genéticos.
- Análisis de la correlación genotipo-fenotipo.
Principales resultados:
- Se identificaron tres pacientes no relacionados con variantes heterocigóticas compuestas de CRELD1.
- Todos los pacientes presentaron retraso en el desarrollo, discapacidad intelectual, convulsiones, hipotonía y características dismórficas.
- Se observó heterogeneidad fenotípica, sin anormalidades cardíacas o inmunológicas en los pacientes estudiados.
Conclusiones:
- Las variantes bialélicas de CRELD1 causan un distinto trastorno de desarrollo neurológico autosómico recesivo.
- Los hallazgos refuerzan las correlaciones genotipo-fenotipo para CRELD1.
- El estudio amplía el espectro clínico y genético de este síndrome emergente.
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