Properties of antisera against lymphocytes of nude mice.

This paper reports results of a study on the activity of rabbit antisera against nu/nu Balb/c lymphocytes in vivo and in vitro. It was found that ALS against nu/nu lymph node cells suppressed the alloantigen reaction and the sRFC or PFC formation for T-dependent (SRBC) and T-independent (LPS) antigens. ALS against nu/nu spleen cells affected only the sRFC and PFC for T-independent antigen. The former serum exhibited a high cytotoxicity for the suspensions enriched or depleted in B cells while the latter one was more cytotoxic for the suspension enriched in B cells. It indicates that ALS anti nu/nu spleen cells is specific for B lymphocytes and ALS anti nu/nu lymph node cells is directed not only to B cells but also to a subpopulation of T lymphocytes. It suggests the existence of a subpopulation of T lymphocytes in nu/nu lymph node cells.