Effect of vesicular stomatitis virus (VSV) infection on the development and regulation of T cell-mediated immune responses.

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Abstract
Infection of mice with vesicular stomatitis virus (VSV) at the time of immunization failed to enhance T cell-mediated immune response to azobenzenearsonate-(ABA) conjugated spleen cells as measured by delayed-type hypersensitivity and by in vitro proliferation and in vitro generation of ABA-specific cytotoxic T cells. However, mice infected with VSV are incapable of responding to signals from suppressor T cells or their soluble factors. Further analysis revealed that VSV infection does not interfere with the induction of Ts-1 or Ts-2 cells. Because infection of Ts-1 or Ts-2 donors had no effect on the subsequent response seen in the recipients of antigen and suppressor T cells, the most likely candidate for the target of VSV infection is therefore the Ts-3 cell or another T cell interacting with Ts-3. This is supported by our observation that it is possible to bypass the VSV effect by providing the recipients of VSV with normal Lyt-2+-bearing T cells.

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