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  • Title: Contribution of the gene linked to the T cell receptor beta chain gene complex of NZW mice to the autoimmunity of (NZB x NZW)F1 mice.
    Author: Hirose S, Tokushige K, Kinoshita K, Nozawa S, Saito J, Nishimura H, Shirai T.
    Journal: Eur J Immunol; 1991 Mar; 21(3):823-6. PubMed ID: 1826267.
    Abstract:
    We have investigated the contribution to the autoimmune disease of (NZB x NZW)F1 (NZB/W) mice made by the T cell receptor beta (TcR beta) chain gene complex, or genes linked to it, that are derived from the NZW strain. For this we developed the NZW.TcR beta NZB strain, a NZW congenic line carrying the TcR beta of NZB type, and produced NZB x NZW.TcR beta NZB (NZB/W.TcR beta NZB)F1 mice. We compared the amounts of anti-DNA and anti-histone antibodies and also the severity of lupus nephritis in these mice with those in the original NZB/W F1 mice. We obtained evidence for significantly lower serum levels of autoantibodies to double-stranded and single-stranded DNA and histone, and a later onset and a lower incidence of proteinuria in the NZB/W.TcR beta NZB F1 mice than in the original NZB/W F1 mice. These findings clearly indicate that the gene(s) within or closely linked to the TcR beta chain gene complex on chromosome 6 of the NZW strain acts to intensify the feature of systemic lupus erythematosus in the NZB/W F1 strain. The significant relationship of this finding to the strict dependency of NZB/W F1 disease on the H-2d/H-2z heterozygosity is discussed.
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