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  • Title: Characteristics of in vitro production of antibodies to DNA in normal and autoimmune mice.
    Author: Sawada S, Talal N.
    Journal: J Immunol; 1979 Jun; 122(6):2309-13. PubMed ID: 312866.
    Abstract:
    The in vitro production of antibodies to dsDNA was studied with spleen cells from normal and autoimmune mice. After culture for 4 days, the binding of dsDNA in the culture supernatant was measured by a radioimmunoprecipitation assay. The production of antibodies to dsDNA by spleen cells appeared at 15 hr after culture and reached a plateau at 24 hr. No antibodies were produced by thymus cells or splenic T cells. The specificity for dsDNA was shown by competitive inhibition with nonradioactive nucleic acids. Autoimmune strains of mice (NZB/NZW, BXSB, MRL/1) produced more antibodies to dsDNA than did several control strains. Young B/W mice and control strain mice produced mainly IgM antibodies, whereas older B/W mice produced predominantly IgG antibodies to dsDNA. The in vitro production of antibodies to dsDNA by aged B/W spleen cells was macrophage and T cell dependent.
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