PMID- 36315216 OWN - NLM STAT- MEDLINE DCOM- 20221115 LR - 20221201 IS - 1557-8976 (Electronic) IS - 0882-8245 (Linking) VI - 35 IP - 9 DP - 2022 Nov TI - Role of Autophagy in the Ubiquitinated Hepatitis B Virus Core Antigen Enhancing Dendritic Cell Function. PG - 629-639 LID - 10.1089/vim.2022.0062 [doi] AB - Dendritic cells (DCs), as the most powerful antigen-presenting cells, play a key role in the adaptive immune response, while the defective function of DC is an important factor in immune tolerance to hepatitis B virus (HBV) infection. Hepatitis B virus core antigen (HBcAg) is a highly antigenic protein that can induce a strong antigen-specific immune response against HBV. In this study, we first constructed the ubiquitinated HBcAg gene (UbHBcAg), and then utilized a recombinant lentiviral vector UbHBcAg (LV-UbHBcAg) to explore the role of them in DC autophagy and function. Meanwhile, the effects of autophagy on DC functional activation were further analyzed. Finally, we investigated the underlying mechanism of autophagy induced by LV-UbHBcAg. Results showed that LV-UbHBcAg could promote autophagic progression in DCs, and the upregulated autophagy can further enhance DC functional maturation. In addition, p62 may serve as an important role in autophagy degradation. More importantly, the PI3K/Akt/mTOR signaling pathway was involved in the process of autophagy induced by LV-UbHBcAg. These findings suggest that LV-UbHBcAg can activate DC function by inducing autophagy, which may represent a promising strategy to treat chronic HBV infection. FAU - Huang, Run AU - Huang R AUID- ORCID: 0000-0002-2941-6785 AD - Department of Infectious Disease, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Chen, Jie AU - Chen J AD - Department of Infectious Disease, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Tan, Quanhui AU - Tan Q AD - Department of Infectious Disease, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Hu, Weiwei AU - Hu W AD - Department of Infectious Disease, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Chen, Xiaohua AU - Chen X AD - Department of Infectious Disease, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Yu, Yongsheng AU - Yu Y AD - Department of Infectious Disease, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Zang, Guoqing AU - Zang G AD - Department of Infectious Disease, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. FAU - Tang, Zhenghao AU - Tang Z AD - Department of Infectious Disease, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221028 PL - United States TA - Viral Immunol JT - Viral immunology JID - 8801552 RN - 0 (Hepatitis B Core Antigens) RN - EC 2.7.1.- (Phosphatidylinositol 3-Kinases) SB - IM MH - Humans MH - *Hepatitis B Core Antigens/genetics MH - Hepatitis B virus MH - Phosphatidylinositol 3-Kinases/genetics/metabolism/pharmacology MH - Genetic Vectors MH - Dendritic Cells MH - Autophagy MH - *Hepatitis B OTO - NOTNLM OT - PI3K/Akt/mTOR signaling pathway OT - autophagy OT - dendritic cells OT - hepatitis B virus core antigen OT - ubiquitinated EDAT- 2022/11/01 06:00 MHDA- 2022/11/16 06:00 CRDT- 2022/10/31 11:52 PHST- 2022/11/01 06:00 [pubmed] PHST- 2022/11/16 06:00 [medline] PHST- 2022/10/31 11:52 [entrez] AID - 10.1089/vim.2022.0062 [doi] PST - ppublish SO - Viral Immunol. 2022 Nov;35(9):629-639. doi: 10.1089/vim.2022.0062. Epub 2022 Oct 28.