Related Experiment Video
Updated: Apr 16, 2026
10:37
Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix
Published on: October 20, 2021
3.5K
Methodologies for the Analysis of HCV-Specific CD4(+) T Cells
Megha U Lokhande1, Robert Thimme2, Paul Klenerman3
1Hepatology, Department of Clinical Research, University of Bern , Bern , Switzerland.
Frontiers in Immunology
|March 14, 2015
Summary
Investigating virus-specific CD4(+) T cells in hepatitis C virus (HCV) infection reveals new detection methods. This review discusses challenges and novel approaches for analyzing T-cell responses in chronic HCV.
Area of Science:
- Immunology
- Virology
- Hepatology
Background:
- CD4(+) T cells are crucial for controlling viral infections like hepatitis C virus (HCV).
- Weak or absent T-cell responses are linked to chronic HCV infection, but their exact nature remains unclear.
- Existing methods for detecting virus-specific CD4(+) T cells have limitations.
Purpose of the Study:
- To address whether virus-specific CD4(+) T cells are absent or functionally impaired in chronic HCV infection.
- To review current and novel methods for detecting HCV-specific CD4(+) T cells.
- To discuss the limitations of existing detection assays.
Main Methods:
- Review of established functional assays for T-cell response analysis.
- Introduction of a novel assay measuring de novo CD154 (CD40 ligand) expression.
- Comparison of multimer-based methods and functional assays.
Main Results:
- Functional assays and other methods have limitations in detecting virus-specific CD4(+) T cells.
- A novel assay using CD154 expression offers a potential solution to overcome existing limitations.
- Detailed analysis of T-cell presence versus function in chronic infection is needed.
Conclusions:
- Understanding the precise status of virus-specific CD4(+) T cells is critical for managing chronic HCV.
- Novel detection methods like CD154 expression analysis are essential for accurate assessment.
- Further research is required to fully elucidate T-cell dynamics in chronic viral infections.
