Functional analysis of mononuclear cells infiltrating into tumors. IV. Purification and functional characterization of cytotoxic cell-generating factor.

Abstract

Rat cytotoxic cell-generating factor (CGF) was purified from cell-free supernatants of a T cell hybridoma (6B2-B8) that constitutively produces CGF. CGF activity was assessed by its ability to generate cytotoxic cells against 51Cr-labeled T-9 cells from spleen cells of T-9-immunized rats. The purification scheme consisted of ammonium sulfate precipitation… (More)

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