Murine hybridomas secreting monoclonal antibodies reacting with Mlsa antigens.

Murine monoclonal antibodies have been developed from spleens of AKR mice hyperimmunised with the monoclonal antibody against TCR-V beta 6. Two new monoclonal antibodies called AL-12-3 and AL-32-7 were able to specifically block Mlsa-induced but not MHC-induced mixed lymphocyte responses in a dose-dependent manner. Both antibodies are mouse IgG3 lambda chain isotype and bind to Mlsa-bearing lymphocytes from different strains of mice. The availability of such antibodies may well facilitate future research aimed at immunochemical and molecular characterization of Mls determinants.