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09:01
An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection
Published on: December 10, 2013
A little 'help' from IL-21 during persistent viral infection
1National Institute of Neurological Disorders and Stroke, The National Institutes of Health, Bethesda, MD 20892, USA. mcgavernd@mail.nih.gov
Journal of Molecular Cell Biology
|October 3, 2009
Summary
Anti-viral CD4(+) T cells are crucial for adaptive immunity during persistent viral infections. Recent studies indicate these cells utilize Interleukin-21 (IL-21) to help manage the immune response.
Area of Science:
- Immunology
- Virology
- Cellular Biology
Background:
- Persistent viral infections require robust adaptive immune responses.
- CD4(+) T cells play a central role in orchestrating adaptive immunity.
- The specific mechanisms by which CD4(+) T cells sustain anti-viral immunity are under investigation.
Purpose of the Study:
- To investigate the role of CD4(+) T cells in sustaining adaptive immunity during persistent viral infections.
- To explore the contribution of Interleukin-21 (IL-21) in CD4(+) T cell-mediated anti-viral responses.
Main Methods:
- Analysis of immune cell populations and cytokine profiles in models of persistent viral infection.
- Investigating the functional impact of IL-21 on CD4(+) T cell activity.
Main Results:
- Evidence suggests CD4(+) T cells are essential for adaptive immune system orchestration.
- The release of IL-21 by CD4(+) T cells appears to be a key mechanism.
- IL-21 contributes to sustaining anti-viral immune activities.
Conclusions:
- CD4(+) T cells are vital for adaptive immunity against persistent viruses.
- Interleukin-21 is a critical cytokine secreted by CD4(+) T cells.
- IL-21 aids in the sustained control of viral infections.
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