Macrophage-Lymphocyte Interaction: Antigen-Independent Binding of Guinea Pig Lymph Node Lymphocytes by Macrophages

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Abstract
The antigen independent binding of guinea pig lymph node lymphocytes by glass-adherent macrophages was investigated. Binding was found to be mediated by a trypsing digestible, divalent cation-dependent, temperature-sensitive macrophage receptor mechanism that was not competitively inhibited by excess immunoglobulin. Data are presented to indicate that in the absence of antigen, macrophages were capable of binding both thymus-derived and bone marrow-derived lymphocytes without apparent selectivity, and further, that the binding of neither cell was mediated by surface membrane-associated immunoglobulin.

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