Abstract: A stable mutant human T cell line is disclosed which secretes a high titer suppressor inducer factor. This suppressor inducer factor in turn induces production of a T cell suppressor factor which suppressed mitogen-induced T cell proliferation at high dilution. Also disclosed is a general method for mutating lymphoblastoid cell lines to yield mutants secreting enhanced levels of lymphokines.
Abstract: Hybrid cell line for producing of monoclonal antibody to an antigen found on all normal human T cells. The hybrid is formed by fusing splenocytes from immunized Balb/cJ mice with P3X63Ag8U1 myeloma cells. Diagnostic and therapeutic uses of the monoclonal antibody are also disclosed.