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  • Title: Induction of B cell priming by neonatal injection of mice with thymic-independent (type 2) antigens.
    Author: Mosier DE.
    Journal: J Immunol; 1978 Oct; 121(4):1453-9. PubMed ID: 359707.
    Abstract:
    Mice injected at birth with the thymus-independent type 2 antigen TNP-AECM-Ficoll have augmented anti-TNP antibody responses when their spleen cells subsequently are challenged in vitro with TNP-coupled thymic independent or thymic dependent antigens. This neonatal priming effect was shown to occur in neonatal nu/nu mice and thus does not appear to require T lymphocytes. The primary explanation for the priming effect seems to be an increase of approximately 10-fold in the numbers of TNP-specific precursors of antibody-forming cells. The neonatal injection of TNP-AECM-Ficoll induces little or no antibody formation directly. It appears, therefore, that some thymic independent antigens can deliver a signal to immature B cells, which causes clonal expansion, but is unable to induce differentiation into antibody-forming cells.
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