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Trends Microbiol. 2001 Nov;9(11):560-4.

Reoviruses and the host cell.

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Dept of Neurology, University of Colorado Health Sciences Center, Campus Box B-182, 4200 E, 9th Avenue, Denver, CO 80262, USA.


Reovirus infection of target cells can perturb cell cycle regulation and induce apoptosis. Differences in the capacity of reovirus strains to induce cell cycle arrest at G1 and G2/M have been mapped to the viral S1 genome segment, which also determines differences in the ability of reovirus strains to induce apoptosis and to activate specific mitogen-activated protein kinase (MAPK) cascades selectively. Reovirus-induced apoptosis involves members of the tumor necrosis factor (TNF) superfamily of death receptors and is associated with activation of both death receptor- and mitochondrial-associated caspases. Reovirus infection is also associated with the activation of a variety of transcription factors, including nuclear factor (NF)-kappaB. Junctional adhesion molecule (JAM) has recently been identified as a novel reovirus receptor. Reovirus binding to JAM appears to be required for induction of apoptosis and activation of NF-kappaB, although the precise cellular pathways involved have not yet been identified.

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