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Rat chromosome 9 bears a major susceptibility locus for IgE response.

Authors: Mas, M  Subra, JF  Lagrange, D  Pilipenko-Appolinaire, S  Kermarrec, N  Gauguier, D  Druet, P  Fournie, GJ 
Citation: Mas M, etal., Eur J Immunol 2000 Jun;30(6):1698-705.
Pubmed: (View Article at PubMed) PMID:10898507
DOI: Full-text: DOI:10.1002/1521-4141(200006)30:6<1698::AID-IMMU1698>3.0.CO;2-F

Injection of Brown Norway (BN) rats with gold salts provides a model to analyze the genetic control of the IgE response. A cohort of F2 progeny of susceptible BN and resistant LEW strains has been studied to carry out a genome-wide search for loci controlling the IgE response. Genome scanning identified two previously described loci, Atps1 and Atps2, and a new locus, Atps3. Atps1 linked to the MHC and Atps2 linked to the cytokine gene cluster that included the IL-4 region have been previously associated with serum IgE concentrations and with other Th2-dependent immune manifestations triggered by gold salts. The new interval, Atps3, identified on chromosome 9 (Lod score = 16), appears to play a major role in the control of the IgE response since it accounts for 31% of the genetic variance. Moreover, Atps3 is linked to anti-laminin antibody response and to glomerular immunoglobulin deposits. The identification and functional characterization of genes involved in these regions, particularly in Atps3, may shed light on the pathogenesis of atopic diseases in man.


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RGD Object Information
RGD ID: 619646
Created: 2002-08-05
Species: All species
Last Modified: 2002-08-05
Status: ACTIVE


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.