Article ; Online: Phenotype and fate of liver-resident CD8 T cells during acute and chronic hepacivirus infection.
2023 Volume 19, Issue 10, Page(s) e1011697
Abstract: Immune correlates of hepatitis C virus (HCV) clearance and control remain poorly defined due to the lack of an informative animal model. We recently described acute and chronic rodent HCV-like virus (RHV) infections in lab mice. Here, we developed MHC ... ...
Abstract | Immune correlates of hepatitis C virus (HCV) clearance and control remain poorly defined due to the lack of an informative animal model. We recently described acute and chronic rodent HCV-like virus (RHV) infections in lab mice. Here, we developed MHC class I and class II tetramers to characterize the serial changes in RHV-specific CD8 and CD4 T cells during acute and chronic infection in C57BL/6J mice. RHV infection induced rapid expansion of T cells targeting viral structural and nonstructural proteins. After virus clearance, the virus-specific T cells transitioned from effectors to long-lived liver-resident memory T cells (TRM). The effector and memory CD8 and CD4 T cells primarily produced Th1 cytokines, IFN-γ, TNF-α, and IL-2, upon ex vivo antigen stimulation, and their phenotype and transcriptome differed significantly between the liver and spleen. Rapid clearance of RHV reinfection coincided with the proliferation of virus-specific CD8 TRM cells in the liver. Chronic RHV infection was associated with the exhaustion of CD8 T cells (Tex) and the development of severe liver diseases. Interestingly, the virus-specific CD8 Tex cells continued proliferation in the liver despite the persistent high-titer viremia and retained partial antiviral functions, as evident from their ability to degranulate and produce IFN-γ upon ex vivo antigen stimulation. Thus, RHV infection in mice provides a unique model to study the function and fate of liver-resident T cells during acute and chronic hepatotropic infection. |
---|---|
MeSH term(s) | Mice ; Animals ; Hepacivirus/genetics ; Persistent Infection ; Mice, Inbred C57BL ; CD8-Positive T-Lymphocytes ; Hepatitis C ; Hepatitis C, Chronic ; Phenotype |
Language | English |
Publishing date | 2023-10-09 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 2205412-1 |
ISSN | 1553-7374 ; 1553-7374 |
ISSN (online) | 1553-7374 |
ISSN | 1553-7374 |
DOI | 10.1371/journal.ppat.1011697 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
More links
Kategorien
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.