Genetic control of natural antibody repertoires: I. IgH, MHC and TCR beta loci

European Journal of Immunology
R VasconcellosA Coutinho

Abstract

Global analysis of natural antibody repertoires has revealed a marked conservation of reactivity patterns within inbred mouse strains, and characteristic strain-specific differences. We have now analyzed the genetic control of reactivity repertoires, aiming at identifying the respective selection mechanisms. Multiparametric statistics of a large number of serum antibody reactivities scored by quantitative Western blot analyses using extracts from homologous tissues and bacteria readily distinguish the reactivity patterns of C57BL/6 and BALB/c, revealing homogeneity among genetically identical individuals. Antibody repertoires in the prototype strains can also be segregated from those expressed by the respective IgH congenics, BC.8 and CB.20, demonstrating that IgH-linked genes contribute to determining natural antibody repertoires. Conversely, strains sharing IgH haplotype also express distinct reactivity patterns, indicating that other genes participate in the selection of serum IgM repertoires. Two such non-IgH loci were now identified. Thus, analysis of four MHC-congenic strains demonstrated that MHC-linked control of natural antibody repertoires is likely to operate through differential selection of T cell repertoires, sinc...Continue Reading

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Citations

Jun 16, 2000·Journal of Immunological Methods·D StahlM D Kazatchkine
Dec 13, 2006·Clinical & Developmental Immunology·Nelson M VazClaudia R Carvalho
Apr 14, 2009·The Journal of Clinical Investigation·Meng-Yun ChouChristoph J Binder
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Mar 1, 2021·Journal of Autoimmunity·Anna-Karin E Palm, Sandra Kleinau
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