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  • Title: MHC and non-MHC genes regulate elimination of lymphocytic choriomeningitis virus and antiviral cytotoxic T lymphocyte and delayed-type hypersensitivity mediating T lymphocyte activity in parallel.
    Author: Thomsen AR, Marker O.
    Journal: J Immunol; 1989 Feb 15; 142(4):1333-41. PubMed ID: 2783710.
    Abstract:
    The course of systemic infection with lymphocytic choriomeningitis virus was studied in mouse strains differing in the MHC or non-MHC background. Virus clearance rates differed significantly between H-2 identical strains as well as between congenic strains differing in the H-2L subregion, indicating that both H-2 and non-H-2 genes may influence the elimination of this virus. Differences in virus spread prior to appearance of the immune response could not explain the observed differences in clearance rate. On the other hand, inefficient clearance always correlated with low T cell responsiveness measured in terms of virus-specific cytotoxicity and delayed-type hypersensitivity, whereas no correlation was found with regard to NK cell activity and antiviral antibody response. Analysis of F1 progeny between H-2 identical high and low responder strains showed that low responsiveness with regard to all three parameters was recessive, indicating that natural tolerance is not the mechanism explaining non-MHC dependent low responsiveness in this system. The implications of these findings are discussed with specific reference to the role of MHC genes in controlling resistance to infectious diseases.
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