Moriishi K, Okabayashi T, Nakai K, Moriya K, Koike K, et al. (2003) Proteasome activator PA28gamma-dependent nuclear retention and degradation of hepatitis C virus core protein. J Virol 77: 10237–10249. doi: 10.1128/JVI.77.19.10237-10249.2003. Moriishi K, Mochizuki R, Moriya K, Miyamoto H, Mori Y, et al. (2007) Critical role of PA28gamma in hepatitis C virus-associated steatogenesis and hepatocarcinogenesis. Proc Natl Acad Sci U S A 104: 1661–1666. doi: 10.1073/pnas.0607312104. Moriya K, Fujie H, Shintani Y, Yotsuyanagi H, Tsutsumi T, et al. (1998) The core protein of hepatitis C virus induces hepatocellular carcinoma in transgenic mice. Nat Med 4: 1065–1067. doi: 10.1038/2053.