BAFF receptor deficiency reduces the development of atherosclerosis in mice--brief report.

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Abstract

The goal of this study was to assess the role of B-cell activating factor (BAFF) receptor in B-cell regulation of atherosclerosis. Male LDL receptor-deficient mice (Ldlr(-/-)) were lethally irradiated and reconstituted with either wild type or BAFF receptor (BAFF-R)-deficient bone marrow. After 4 weeks of recovery, mice were put on a high-fat diet for 6 or 8 weeks. BAFF-R deficiency in bone marrow cells led to a marked reduction of conventional mature B2 cells but did not affect the B1a cell subtype. This was associated with a significant reduction of dendritic cell activation and T-cell proliferation along with a reduction of IgG antibodies against malondialdehyde-modified low-density lipoprotein. In contrast, serum IgM type antibodies were preserved. Interestingly, BAFF-R deficiency was associated with a significant reduction in atherosclerotic lesion development and reduced numbers of plaque T cells. Selective BAFF-R deficiency on B cells led to a similar reduction in lesion size and T-cell infiltration but in contrast did not affect dendritic cell activation. BAFF-R deficiency in mice selectively alters mature B2 cell-dependent cellular and humoral immune responses and limits the development of atherosclerosis.

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APA

Sage, A. P., Tsiantoulas, D., Baker, L., Harrison, J., Masters, L., Murphy, D., … Mallat, Z. (2012). BAFF receptor deficiency reduces the development of atherosclerosis in mice--brief report. Arteriosclerosis, Thrombosis, and Vascular Biology, 32(7), 1573–1576. https://doi.org/10.1161/ATVBAHA.111.244731

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