Abstract
Liver injury was induced after infection with Salmonella choleraesuis 31N-1. In T-cell receptor-delta knockout mice, serum alanine transferase level was significantly decreased in comparison with normal control mice after Salmonella infection. On the contrary, in vivo administration of anti-gammadelta T-cell receptor monoclonal antibody (UC7-13D5) to stimulate gammadelta-T cells in infected mice significantly increased serum alanine transferase level but decreased bacterial growth compared with infected mice given control antibody (UC8; hamster IgG). These data suggest that gammadelta-T cells have effector activities not only for protection but also for liver injury during Salmonella infection.
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