TLR9/MyD88 signaling is required for class switching to pathogenic IgG2a and 2b autoantibodies in SLE.
TLR9/MyD88 signaling is required for class switching to pathogenic IgG2a and 2b autoantibodies in SLE.
复制标题
DOI:
10.1084/jem.20052438
复制
发表时间:
2006-03-20
期刊:
影响因子:
--
通讯作者:
Ravetch JV
中科院分区:
文献类型:
--
作者:
Ehlers M;Fukuyama H;McGaha TL;Aderem A;Ravetch JV
Loss of tolerance in systemic lupus erythematosus (SLE) leads to the generation of autoantibodies, which accumulate in end-organs where they induce disease. Here we show that immunoglobulin (Ig)G2a and 2b autoantibodies are the pathogenic isotypes by recruiting FcγRIV expressing macrophages. Class switching, but not development, of IgM anti-self B cells to these pathogenic subclasses requires the innate immune receptor Toll-like receptor (TLR)9 and MyD88 signaling. In their absence, switching of autoreactive B cells to the IgG2a and 2b subclasses is blocked, resulting in reduced pathology and mortality. In contrast, switching of anti-self B cells to IgG1 is not perturbed and generation of nonautoreactive IgG2a and 2b antibodies is not impaired in TLR9-deficient mice. Thus, the TLR9 pathway is a potential target for therapeutic intervention in SLE.
登录
查看更多内容
影响因子:
3.2
作者:
Jiang, Y;Hirose, S;Shirai, T
通讯作者:
Shirai, T
影响因子:
30.5
作者:
Fukuyama, H;Nimmerjahn, F;Ravetch, JV
通讯作者:
Ravetch, JV
DOI:
10.1084/jem.20050338
发表时间:
2005-07-18
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Christensen SR;Kashgarian M;Alexopoulou L;Flavell RA;Akira S;Shlomchik MJ
通讯作者:
Shlomchik MJ
影响因子:
64.8
作者:
Hemmi, H;Takeuchi, O;Akira, S
通讯作者:
Akira, S
影响因子:
30.5
作者:
Latz, E;Schoenemeyer, A;Golenbock, DT
通讯作者:
Golenbock, DT