Abstract:
:p53 is implicated in several cellular pathways such as induction of cell-cycle arrest, differentiation, senescence, and apoptosis. p53 is activated by a broad range of stress signals, including viral infections. While some viruses activate p53, others induce its inactivation, and occasionally p53 is differentially modulated during the replicative cycle. During calicivirus infections, apoptosis is required for virus exit and spread into the host; yet, the role of p53 during infection is unknown. By confocal microscopy, we found that p53 associates with FCV VP1, the protease-polymerase NS6/7, and the dsRNA. This interaction was further confirmed by proximity ligation assays, suggesting that p53 participates in the FCV replication. Knocked-down of p53 expression in CrFK cells before infection, resulted in a strong reduction of the non-structural protein levels and a decrease of the viral progeny production. These results indicate that p53 is associated with the viral replication complex and is required for an efficient FCV replication.
journal_name
Virologyjournal_title
Virologyauthors
Trujillo-Uscanga A,Gutiérrez-Escolano ALdoi
10.1016/j.virol.2020.08.008subject
Has Abstractpub_date
2020-11-01 00:00:00pages
78-88eissn
0042-6822issn
1096-0341pii
S0042-6822(20)30161-6journal_volume
550pub_type
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