CD4+CD25+T Cells Prevent Arthritis Associated withBorreliaVaccination and Infection

Abstract
CD4+CD25+T cells are a population of regulatory T cells associated with control of arthritis in anti-interleukin-17 antibody-treatedBorrelia-vaccinated and challenged gamma interferon-deficient mice. Here, we present direct evidence that adoptive transfer of enriched CD4+CD25+T cells from these mice can prevent the development of arthritis inBorrelia-vaccinated and challenged mice. These findings establish a major role for CD4+CD25+T cells in the prevention of arthritis inBorrelia-vaccinated and challenged animals.