Pathogenesis of lupus-like nephritis through autoimmune antibody produced by CD180-negative B lymphocytes in NZBWF1 mouse.
2012
Abstract Toll-like receptors appear to play an important role in the pathogenesis of lupus-like nephritis in mice. In human and mouse, CD180 is a homologue of TLR4. In SLE patients, the number of CD180-negative B cells in peripheral blood changes in parallel with disease activity. In the present study using NZBWF1 mice, the population of splenic CD180-negative B cells increased with progression of renal lesions and aging. These cells produced both anti-dsDNA and histone antibodies; the peripheral blood levels of anti-dsDNA antibody increased markedly with aging. B cells infiltrating into renal lesions were CD180-negative and produced anti-dsDNA antibody. Considered together, these findings indicate that CD180-negative B cells contribute significantly to development of SLE-like morbidity in NZBWF1 mice by autoantibody production.
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