Abstract
Fractionation by columns of aggregated rat immunoglobulin (Agg Ig)-agarose was investigated as a method of separating different populations of lymphoid cells. With rat spleen cells, Agg Ig columns retained phagocytes, IgM- and IgG-antibody-forming-cells, cells mediating antibody- or PHA-induced lysis of chicken erythrocytes, and specifically immune splenocytes lytic to chicken erythrocytes without exogenous antibody. Agg Ig columns did not selectively remove ‘B lymphocytes’ (surface-Ig-bearing lymphocytes with or without EAC′ receptors), or T lymphocytes capable of PHA-induced proliferation or graft-versus-host reactivity. With mouse spleen cells, Agg Ig columns retained alloimmune cytotoxic T cells.
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