Tripartite motif‐containing 22 inhibits the activity of hepatitis B virus core promoter, which is dependent on nuclear‐located RING domain
Bo Gao, Zhijian Duan, Wei Xu, Sidong Xiong – 29 July 2009 – Members of the tripartite motif (TRIM) family are a part of the innate immune system to counter intracellular pathogens. TRIM22 has been reported to possess antiretroviral activity. Here we report that TRIM22 is involved in antiviral immunity against hepatitis B virus (HBV). Our results showed that TRIM22, being a strongly induced gene by interferons in human hepatoma HepG2 cells, could inhibit HBV gene expression and replication in a cell culture system as well as in a mouse model system.