Clonal Evolution of Autoreactive Germinal Centers.
Clonal Evolution of Autoreactive Germinal Centers.
复制标题
自动发芽中心的克隆进化。
DOI:
10.1016/j.cell.2017.07.026
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发表时间:
2017-08-24
期刊:
影响因子:
64.5
通讯作者:
Carroll MC
中科院分区:
文献类型:
--
作者:
Degn SE;van der Poel CE;Firl DJ;Ayoglu B;Al Qureshah FA;Bajic G;Mesin L;Reynaud CA;Weill JC;Utz PJ;Victora GD;Carroll MC
Germinal centers (GCs) are the primary sites of clonal B cell expansion and affinity maturation, directing the production of high-affinity antibodies. This response is a central driver of pathogenesis in autoimmune diseases, such as systemic lupus erythematosus (SLE), but the natural history of autoreactive GCs remains unclear. Here, we present a novel mouse model where the presence of a single autoreactive B cell clone drives the TLR7-dependent activation, expansion, and differentiation of other autoreactive B cells in spontaneous GCs. Once tolerance was broken for one self-antigen, autoreactive GCs generated B cells targeting other self-antigens. GCs became independent of the initial clone and evolved towards dominance of individual clonal lineages, indicating affinity maturation. This process produced serum autoantibodies to a breadth of self-antigens, leading to antibody deposition in the kidneys. Our data provide insight into the maturation of the self-reactive B cell response, contextualizing the epitope spreading observed in autoimmune disease.
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影响因子:
32.4
作者:
Herlands, Robin A.;Christensen, Sean R.;Sweet, Rebecca A.;Hershberg, Uri;Shlomchik, Mark J.
通讯作者:
Shlomchik, Mark J.
影响因子:
--
作者:
Kepler TB
通讯作者:
Kepler TB
影响因子:
32.4
作者:
Das A;Heesters BA;Bialas A;O'Flynn J;Rifkin IR;Ochando J;Mittereder N;Carlesso G;Herbst R;Carroll MC
通讯作者:
Carroll MC
影响因子:
30.5
作者:
Dogan, Ismail;Bertocci, Barbara;Weill, Jean-Claude
通讯作者:
Weill, Jean-Claude
影响因子:
32.4
作者:
Berland, Robert;Fernandez, Luis;Imanishi-Kari, Thereza
通讯作者:
Imanishi-Kari, Thereza