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J Fish Dis ; 43(2): 263-273, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31845349

RESUMEN

In the present study, a new cell line from the vertebra of mosquitofish Gambusia affinis was successfully established and characterized. The cell line is named as bone Gambusia affinis (BGA) and subcultured for more than 55 passages in Leibovitz's/L15 medium supplemented with 15% FBS at 28°C. The cell line has a modal chromosome number of 48. Molecular characterization of the partial sequence of the coi gene confirmed the origin of the BGA cell line from mosquitofish. These cells exhibited epithelial morphology confirmed by the cytokeratin marker. The BGA cells showed mineralization of their extracellular matrix when stained with alizarin red and von Kossa stain. BGA cells were found to be susceptible to RGNNV and SJNNV strains of betanodavirus (NNV) showing cytopathic effect with multiple vacuolations in the cells. The RT-PCR confirmed the betanodavirus infections in BGA cells. The SEM micrograph showed the morphological changes observed in the cell during virus infection. The in vivo challenge experiment also showed the viral replicating efficiency in the Gambusia affinis with increasing viral titre. Thus, our present results show that the BGA cell line is a useful tool for isolating betanodavirus and could be used to investigate bone cell differentiation and extracellular matrix mineralization.


Asunto(s)
Línea Celular/virología , Ciprinodontiformes , Enfermedades de los Peces/virología , Nodaviridae/fisiología , Infecciones por Virus ARN/veterinaria , Animales , Susceptibilidad a Enfermedades/veterinaria , Susceptibilidad a Enfermedades/virología , Infecciones por Virus ARN/virología , Columna Vertebral , Carga Viral , Replicación Viral
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