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Mech Ageing Dev. 2005 Nov;126(11):1223-9.

The balance between influenza- and RSV-specific CD4 T cells secreting IL-10 or IFNgamma in young and healthy-elderly subjects.

Author information

  • 1David H. Smith Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, Rochester, NY 14642, USA. eunhyung_lee@urmc.rochester.edu

Abstract

Respiratory syncytial virus (RSV) and influenza virus cause severe disease in elderly patients. The balance of pro- and anti-inflammatory cytokines may be critical in determining disease pathogenesis and outcome of infection. The frequencies of CD4 IL-10 (anti-inflammatory)- and CD4 and CD8 IFNgamma (pro-inflammatory)-secreting memory T cells specific for either RSV or influenza were not significantly different between young and elderly groups, although the ratio of IL-10/IFNgamma was significantly reduced in the elderly RSV response. A similar trend was seen for influenza. IFNgamma-secreting CD4 T cells contributed significantly more to anti-RSV than anti-influenza responses in both groups.

PMID:
16098562
[PubMed - indexed for MEDLINE]
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