PMID: 9188844Feb 1, 1997Paper

The MHC class II-restricted T cell response of C57BL/6 mice to human C-reactive protein: homology to self and the selection of T cell epitopes and T cell receptors

Molecular Immunology
R DöffingerB A Kyewski

Abstract

The T cell response of C57BL/6 mice to human C-reactive protein (hCRP), an inducible acute phase protein, was analysed. Two I-A(b)-restricted epitopes at positions 79 95 (epitope A) and 87-102 (epitope B) were identified using a panel of CD4+ T cell clones. Human C-reactive protein shares considerable homology with mouse C-reactive protein and mouse serum amyloid P component. Interestingly, the two epitopes map to the region of lowest homology between human CRP and its mouse homologues. Human CRP-specific T cell clones express a restricted T cell receptor (TCR) repertoire, both with regard to usage of TCR germline gene segments (V alpha, J alpha, V beta, J beta) and certain TCR alpha beta combinations. Therefore, epitope-A specific clones preferentially use TCR V beta8.3 and V alpha3 J alpha15 V beta8.3-J beta2.3 and epitope-B specific clones use V beta2 and V alpha1-J alpha24/30-V beta2. This bias is even more pronounced when TCR usage is correlated with epitope fine specificity. A role for homology of hCRP to self components in selecting these particular T cell epitopes and TCR is discussed.

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Citations

Feb 5, 2003·The Journal of Experimental Medicine·Mirja Hommel, Bruno Kyewski
Nov 11, 2011·PloS One·Brian F KuhnLee R Berger
Oct 26, 2014·The Journal of Immunology : Official Journal of the American Association of Immunologists·Chiharu FujiharaRichard J Hodes
May 21, 2005·The Journal of Immunology : Official Journal of the American Association of Immunologists·Melany J D WagnerTerry L Delovitch

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