Abstract
Development of a high level of sustained borreliacidal antibody is paramount for maintaining protection against infection with Borrelia burgdorferi. We show that production of borreliacidal antibody can be enhanced by preventing the effects of gamma interferon (IFN-gamma). When lymph node cells capable of producing borreliacidal antibody were cultured with anti-murine IFN-gamma, an eightfold increase in borreliacidal antibody production was obtained. However, anti-IFN-gamma treatment of these cells also enhanced their ability to adaptively induce arthritis. When anti-IFN-gamma-treated lymph node cells producing borreliacidal antibody were infused into C3H/HeJ mice and the mice were then challenged with B. burgdorferi, the mice developed severe destructive Lyme arthritis. Additional studies are needed to delineate the immune response responsible for the induction of arthritis and production of borreliacidal antibody. These studies are needed to ensure an effective and safe vaccine against infection with B. burgdorferi.
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