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J Neurovirol. 2002 Apr;8(2):150-4.

Differential use of the nicotinic receptor by rabies virus based upon substrate origin.

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Laboratorio de Neurociencias, Instituto Nacional de Salud, Bogotá, Colombia.


To determine the role that the neuronal nicotinic acetylcholine receptor plays in the adsorption process of rabies virus (RV), adult dorsal root ganglion dissociated cultures were exposed to nicotinic agonists before being inoculated. The fixed strain of RV Challenge Virus Standard-11 (CVS-11) was used after being passaged in two different ways, in baby hamster kidney (BHK) cells and in adult mouse brain (MB). Carbachol and nicotine reduced the percentage of CVS-MB infected neurons, yet none of the agonists tested changed the proportion of CVS-BHK infected neurons. This result suggests that the RV phenotype changes depending on its replication environment and neuronal nicotinic acetylcholine receptors are preferentially used for infection by RV strains adapted to adult mouse brain but not to fibroblasts.

[Indexed for MEDLINE]

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