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Rabbit Antiserum to Brain-Associated Thymus Antigens of Mouse and Rat


 Immunization of rabbits with either mouse (CBA/ST) or rat (Le) brain homogenates results in the production of antisera which upon appropriate absorptions are T cell-specific for both mouse and rat. These antisera may be used effectively for direct cytotoxicity and detection of rat and mouse T cells by direct immunofluorescence. Furthermore, in the rat, it was demonstrated that antimouse brain serum, in the presence of complement, abrogates cell-mediated immunity in vitro, but does not affect antibody-forming cells.