Phenotypic and functional heterogeneity of thymic and splenic lymphokine activated killer cells relative to ornithine sensitivity.

Abstract excerpt

We have previously reported the selective inhibition of cytotoxic T lymphocytes (CTL) by 10 mM ornithine (ORN) relative to natural killer (NK) cell-derived lymphokine activated killer cells (LAK). To determine if this were due to differences in the progenitor cells or the type of stimulus, we used cortisone-resistant thymocytes (CRT) as a source of mature T cells for induction of LAK and CTL, and compared the...

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