id author title date pages extension mime words sentences flesch summary cache txt cord-310396-jitao9k0 Lei, Yu MAVS-Mediated Apoptosis and Its Inhibition by Viral Proteins 2009-03-07 .txt text/plain 6031 325 46 The mitochondrial antiviral signaling adaptor, MAVS (IPS-1, VISA or Cardif) is critical for host defenses to viral infection by inducing type-1 interferons (IFN-I), however its role in virus-induced apoptotic responses has not been elucidated. A functional screen identifies the hepatitis C virus NS3/4A and the Severe Acute Respiratory Syndrome coronavirus (SARS-CoV) nonstructural protein (NSP15) as inhibitors of MAVS-induced apoptosis, possibly as a method of immune evasion. Currently, there are no reports of viral proteins targeting MAVS for inhibition of virus-induced cell death responses. In this report, we describe a novel function of MAVS in mediating virus-induced apoptosis, and identify viral proteins as inhibitors of this response. In addition, the involvement of proteins on IFN axis in virusinduced host cell apoptosis has been implicated in another previous report, in which MAVS has been shown to be critical for reovirus-triggered caspase-3/7 activation in HEK293T cells [46] , however, the study did not evaluate whether MAVS mediates virus-induced apoptosis and what roles type 1 IFNs play in MAVS-mediated apoptosis. ./cache/cord-310396-jitao9k0.txt ./txt/cord-310396-jitao9k0.txt