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  • Title: Syngeneic mixed lymphocyte reaction in mice: strain distribution, kinetics, participating cells, and absence in NZB mice.
    Author: Smith JB, Pasternak RD.
    Journal: J Immunol; 1978 Nov; 121(5):1889-92. PubMed ID: 152331.
    Abstract:
    Co-culture of mouse spleen nonadherent (T-enriched cells with mitomycin C-treated unfractionated syngeneic spleen cells resulted in increased DNA synthesis in the responding T cells. The kinetics of this syngeneic mixed lymphocyte reaction (SMLR) showed that peak DNA synthesis occurred on day 5 of culture compared to day 4 for conventional mixed lymphocyte reaction (MLR). Anti-T cell antiserum plus complement treatment of the responding cell population abolished the reaction, and similar treatment of the stimulator population enhanced SMLR. These studies indicate that SMLR represents the response of T cells to non-T cells. Studies on the generation of cytotoxic T lymphocytes (CTL) in parallel cultures of T cells activated by syngeneic or allogeneic spleen cells showed no cytotoxicity of SMLR-activated cells for either PHA- or LPS-induced blasts but did show a good CTL response of allo-activated cells to both targets. Studies on the strain distribution of SMLR revealed that NZB mice manifested poor or no stimulation in SMLR whereas all other strains tested exhibited strong SMLR. This defect in NZB mice may be pathogenetically related to the autoimmune disease that develops in these mice.
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