Validación de los genes de referencia para RT-qPCR en tejido cardíaco de ratón inducido por obesidad y diabetes

Autores/as

DOI:

https://doi.org/10.33448/rsd-v9i11.9702

Palabras clave:

Corazón; Rodend; Normalización; RefFinde; GAPDH.

Resumen

La validación de genes de referencia es un paso fundamental para análisis de RT-qPCR. El presente trabajo tuvo como objetivo identificar y validar genes de referencia para RT-qPCR en tejido cardíaco de ratas de la especie Rattus norvegicus albinus, sometidas a obesidad asociada o no a diabetes mellitus tipo 2. Fueran introducidos los cambios metabólicos a los 42 días de vida y se realizó la eutanasia a los 70 días. Los ápices del corazón fueran destinados a la extracción de RNA. La técnica RT-qPCR se realizó en termociclador propio, la eficiencia de los cebadores encontrados por el software LinReg y la estabilidad de la expresión de los genes de referencia en las muestras se analizó mediante el algoritmo RefFinder. Los candidatos a genes de referencia fueron GAPDH, POLR2A, RPL32 y RPL4, y el gen diana utilizado para verificar las diferencias en la expresión génica de los candidatos a genes de referencia fue CMA1. Los animales obesos mostraron una disminución en la expresión del gen CMA1 en comparación con los dos genes de referencia más estables. Lo contrario ocurre cuando se compara con los dos genes de referencia menos estables. Los genes GAPDH y POLR2A son los mejores para normalizar las reacciones con las muestras en cuestión. No existe un gen de referencia universal, lo que requiere una validación sistemática para cada situación. El uso de genes de referencia no validados puede comprometer la interpretación de la expresión de los genes diana, lo que evitaría el reflejo de la situación real.

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Publicado

08/11/2020

Cómo citar

OLIVEIRA, M. M. de; LIVRAMENTO, K. G. do; MAGALHÃES, M. L.; PAIVA, L. V.; PECONICK, A. P. Validación de los genes de referencia para RT-qPCR en tejido cardíaco de ratón inducido por obesidad y diabetes. Research, Society and Development, [S. l.], v. 9, n. 11, p. e1599119702, 2020. DOI: 10.33448/rsd-v9i11.9702. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/9702. Acesso em: 24 nov. 2024.

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Sección

Ciencias Agrarias y Biológicas