alexa Cellular inhibitor of apoptosis proteins prevent clearance of hepatitis B virus.
Microbiology

Microbiology

Research & Reviews: Journal of Microbiology and Biotechnology

Author(s): Ebert G

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Hepatitis B virus (HBV) infection can result in a spectrum of outcomes from immune-mediated control to disease progression, cirrhosis, and liver cancer. The host molecular pathways that influence and contribute to these outcomes need to be defined. Using an immunocompetent mouse model of chronic HBV infection, we identified some of the host cellular and molecular factors that impact on infection outcomes. Here, we show that cellular inhibitor of apoptosis proteins (cIAPs) attenuate TNF signaling during hepatitis B infection, and they restrict the death of infected hepatocytes, thus allowing viral persistence. Animals with a liver-specific cIAP1 and total cIAP2 deficiency efficiently control HBV infection compared with WT mice. This phenotype was partly recapitulated in mice that were deficient in cIAP2 alone. These results indicate that antagonizing the function of cIAPs may promote the clearance of HBV infection.

This article was published in Proc Natl Acad Sci U S A. and referenced in Research & Reviews: Journal of Microbiology and Biotechnology

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