首页> 外文期刊>Cellular immunology >BAFF overexpression promotes anti-dsDNA B-cell maturation and antibody secretion.
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BAFF overexpression promotes anti-dsDNA B-cell maturation and antibody secretion.

机译:BAFF过表达促进抗dsDNA B细胞成熟和抗体分泌。

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Overexpression of BAFF is believed to play an important role in systemic lupus erythematosus and elevated levels of serum BAFF have been found in lupus patients. Excess BAFF also leads to overproduction of anti-dsDNA antibodies and a lupus-like syndrome in mice. In the present study, we use mice transgenic for the R4A-Cmu (IgM) heavy chain of an anti-dsDNA antibody, to study the effects of BAFF overexpression on anti-dsDNA B-cell regulation. We observe that overexpression of BAFF promotes anti-dsDNA B-cell maturation and secretion of antibody and enriches for transgenic anti-dsDNA B cells in the marginal zone and follicular splenic compartments. In addition, our data suggests that BAFF rescues a subset of anti-dsDNA B cells from a regulatory checkpoint in the transitional stage of development.
机译:据信BAFF的过表达在系统性红斑狼疮中起重要作用,并且在狼疮患者中发现血清BAFF水平升高。过量的BAFF还会导致小鼠体内产生过量的抗dsDNA抗体和狼疮样综合征。在本研究中,我们使用抗dsDNA抗体的R4A-Cmu(IgM)重链转基因的小鼠,以研究BAFF过表达对抗dsDNA B细胞调节的影响。我们观察到,BAFF的过度表达促进了抗dsDNA B细胞的成熟和抗体的分泌,并丰富了边缘区和滤泡性脾室中的转基因抗dsDNA B细胞。此外,我们的数据表明,BAFF在发育的过渡阶段从监管检查站拯救了一部分抗dsDNA B细胞。

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