High frequency of virus-specific interleukin-2-producing CD4(+) T cells and Th1 dominance during lymphocytic choriomeningitis virus infection
Graduate School of Biomedical Sciences; Program in Immunology and Virology; Department of Pathology
Life Sciences | Medicine and Health Sciences
Analysis of C57BL/6 mice acutely infected with lymphocytic choriomeningitis virus (LCMV) by using intracellular cytokine staining revealed a high frequency (2 to 10%) of CD4(+) T cells secreting the Th1-associated cytokines interleukin-2 (IL-2), gamma interferon (IFN-gamma), and tumor necrosis factor alpha, with no concomitant increase in the frequency of CD4(+) T cells secreting the Th2-associated cytokines IL-4, IL-5, and IL-10 following stimulation with viral peptides. In LCMV-infected C57BL/6 CD8(-/-) mice, more than 20% of the CD4(+) T cells secreted IFN-gamma after viral peptide stimulation, whereas less than 1% of the CD4(+) T cells secreted IL-4 under these same conditions. Mice persistently infected with a high dose of LCMV clone 13 also generated a virtually exclusive Th1 response. Thus, LCMV induces a much more profound virus-specific CD4(+) T-cell response than previously recognized, and it is dramatically skewed to a Th1 phenotype.
J Virol. 2000 May;74(9):4429-32.
Journal of virology
Varga, Steven Michael and Welsh, Raymond M., "High frequency of virus-specific interleukin-2-producing CD4(+) T cells and Th1 dominance during lymphocytic choriomeningitis virus infection" (2001). GSBS Student Publications. 1303.