Properties and applications of monoclonal antibodies directed against determinants of they Thy-1 locus.
J Immunol 1979 Jun;122(6):2491-7
Fusion of cells of the mouse myeloma line, P3/X63-Ag8 with spleen cells from AKR/J mice immunized against C3H thymocytes or from (BALB/c x BALB.K)F1 mice immunized against AKR/J thymocytes gave rise to hybrid cell lines that continuously secrete antibodies specific for the Thy-1.2 and Thy-1.1 antigens, respectively. Monoclonal antibodies from four such cell lines were analyzed in detail. All were 19S IgM, and, in the presence of complement (C), had high lytic titers on T cells of the appropriate antigenicity. Their specificity was shown by lysis of thymocytes from Thy-1 congenic mouse strains, A/J(Thy-1.2) and A. Thy 1.1. Furthermore, they lyse only 60 to 70% of lymph node cells, suggesting cytotoxicity for mature T cells and not B cells. Treatment of peripheral lymphocyte populations with monoclonal antibody plus C eliminated effector cytotoxic T lymphocytes, their precursors, and the mitogenic response to Con A, but did not affect the response to LPS. Purified, fluorescein-labeled monoclonal anti-Thy-1 antibody could be used to distinguish T and B cells. Purified antibody coupled to Sepharose 6MB was used to separate viable T and B cells. Two independently isolated anti-Thy-1.2 hybridomas are indistinguishable and bind the same determinant whereas a third is unique and may bind a separate site.
Marshak, Rothstein A.; Fink, P; Gridley, T; Raulet, D H.; Bevan, M J.; and Gefter, M L., " Properties and applications of monoclonal antibodies directed against determinants of they Thy-1 locus." (1979). Faculty Research 1970 - 1979. 1098.
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