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The Bxs6 locus of BXSB mice is sufficient for high-level expression of gp70 and the production of gp70 immune complexes.


Reference:

Rankin, J., Boyle, J., Rose, S., Gabriel, L., Lewis, M., Thiruudaian, V., Rogers, N., Izui, S. and Morley, B. J., 2007. The Bxs6 locus of BXSB mice is sufficient for high-level expression of gp70 and the production of gp70 immune complexes. The Journal of Immunology, 178, pp. 4395-4401.

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Abstract

High levels of the retroviral envelope protein gp70 and gp70 immune complexes have been linked to a single locus on chromosome 13 (Bxs6) in the BXSB model, to which linkage of nephritis was also seen. Congenic lines containing the BXSB Bxs6 interval on a non-autoimmune C57BL/10 background were bred in the presence or absence of the BXSB Y chromosome autoimmune accelerator gene (Yaa), which accelerates disease in male mice. In these mice, we have shown that Bxs6 is sufficient to cause high-level expression of gp70 and the production of gp70 autoantibodies, independently of Yaa, with gp70 immune complex levels enhanced by Yaa. In the presence of Yaa, Bxs6 also causes mild nephritis, and interestingly the sporadic production of high levels of anti-DNA Abs in some mice. Fine mapping using rare recombinant mice suggested that Bxs6 lies between 59.7 and 74.8 megabases (Mb), although the interval of 0.6 Mb between 73.6 and 78.6 Mb on chromosome 13 cannot be excluded in this study.

Details

Item Type Articles
CreatorsRankin, J., Boyle, J., Rose, S., Gabriel, L., Lewis, M., Thiruudaian, V., Rogers, N., Izui, S. and Morley, B. J.
DepartmentsUniversity Administration & Central Services > Vice-Chancellor's Office
RefereedYes
StatusPublished
ID Code19268

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