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Generation of non-MHC restricted killing in cultures stimulated with B cells from chronic lymphocytic leukaemia patients: Phenotypic characterization of the precursor and effector cells

Clinical and Experimental Immunology, ISSN: 0009-9104, Vol: 72, Issue: 2, Page: 303-308
1988
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Article Description

Freshly isolated B cells from chronic lymphocytic leukaemia patients (B-CLL) have been previously shown to induce a strong proliferative response and high levels of NK-like activity in lymphocytes from healthy donors. The present paper deals with the origin, mitotic state, target spectrum and cell surface phenotype of the NK-like effectors generated after stimulation with B-CLL. Experiments using large granular lymphocytes (LGL) and T cells as responders demonstrated that most of the precursors of the newly generated NK-like effectors express the CD3 antigen. The induction of NK-like activity paralleled cell activation, as judged by blast transformation, thymidine uptake and appearance of cell surface activation markers. The newly generated NK-like effectors displayed a T cell phenotype and a broader target repertoire than native NK cells.

Bibliographic Details

L. Matera; R. Foa; F. Malavasi; G. Bellone; A. Funaro; F. Veglia; D. Santoli

Medicine; Immunology and Microbiology

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