Abstract
The role of CD8+ suppressor T cells in acute herpes simplex virus type 1 (HSV) infection was investigated in mice. CD8+ CD11b+ TCR-γ/δ+ suppressor T cells (HSV-STC) were demonstrated in spleens of mice infected intraperitoneally (i.p.) with HSV. When HSV-STC from mice infected with a 10 LD50 of HSV (donors) were adoptively transferred to mice 3 days after being infected with a 1 LD50 dose of HSV (recipients), the morbidity and mortality of recipients were greatly increased (mean survival time in days (MSD): 9.4 days; mortality, 100%) as compared with controls that received CD4+ T cells or a whole T-cell lysate from donors (MSD, > 19.6 days or > 19.1 days; mortality, 38% or 50%). The morbidity and mortality of mice exposed to a 1 LD50 of HSV were also increased when they were continuously treated with recombinant murine IL-4. However, the survival rate of mice exposed to a 10 LD50 of HSV increased after multiple treatments of these mice with anti-IL-4 monoclonal antibody. IL-4-producing cells were detected in a population of HSV-STC, and IL-4 was produced when these cells were cultured in the presence of UV-inactivated HSV in vitro. These results indicate that IL-4 plays an important role in the progression of acute HSV infection and, through the production of IL-4, HSV-STC may increase the severity of the acute-phase infection of HSV in mice.
Original language | English (US) |
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Pages (from-to) | 63-72 |
Number of pages | 10 |
Journal | Immunology Letters |
Volume | 47 |
Issue number | 1-2 |
DOIs | |
State | Published - 1995 |
Externally published | Yes |
Keywords
- CD8 type-2 T cell
- Herpes simplex virus type 1
- IL-4
- Suppressor T cell
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology