Abstract
The following reviews the role of mRNA stability in the regulation of both viral and cellular gene expression in virus-infected cells. Indeed, several eukaryotic viruses, including the human immunodeficiency virus, HIV-1, regulate cellular protein synthesis via such control mechanisms. The following systems will be discussed: (i) the degradation of viral and cellular mRNAs in cells infected by herpes simplex virus (HSV) and advances made using the HSV virion host shutoff mutant; (ii) the degradation of viral and cellular mRNA and ribosomal RNA in cells infected by vaccinia virus and the possible role of the oligoadenylate synthetase-RNase L pathways; (iii) the turnover of RNAs in cells infected by encephalomyocarditis virus, reovirus, and La Crosse virus; and finally (iv) recent studies from our laboratory on the degradation of cellular mRNAs in cells infected by HIV-1.
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