Regulation of age-associated B cells by IRF5 in systemic autoimmunity.
Regulation of age-associated B cells by IRF5 in systemic autoimmunity.
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DOI:
10.1038/s41590-018-0056-8
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发表时间:
2018-04
影响因子:
30.5
通讯作者:
Pernis AB
中科院分区:
文献类型:
--
作者:
Manni M;Gupta S;Ricker E;Chinenov Y;Park SH;Shi M;Pannellini T;Jessberger R;Ivashkiv LB;Pernis AB
Age-associated B cells (ABCs) are a T-bet–dependent B cell subset, which accumulates prematurely in autoimmune settings. The pathways regulating ABCs in autoimmunity are largely unknown. SWAP-70 and DEF6 (also known as IBP or SLAT) are the only two members of the SWEF family, a unique family of Rho GTPase-regulatory proteins that controls both cytoskeletal dynamics and IRF4 activity. Notably, DEF6 is a newly identified human SLE-risk variant. Here we show that the lupus syndrome that developed in SWEF-deficient mice is accompanied by the accumulation of ABCs, which produce autoantibodies upon stimulation. ABCs from SWEF-deficient mice exhibited a distinctive transcriptome and a unique chromatin landscape characterized by enrichment in motifs bound by transcription factors of the IRF family, AP-1/BATF, and T-bet. Enhanced ABC formation in SWEF-deficient mice was controlled by interleukin 21 (IL-21) and IRF5, whose variants are strongly associated with lupus. The lack of SWEF proteins led to dysregulated IRF5 activity in response to IL-21 stimulation. These studies thus uncover a new genetic pathway controlling ABCs in autoimmunity.
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影响因子:
5
作者:
Fang, C-M;Roy, S.;Nielsen, E.;Paul, M.;Maul, R.;Paun, A.;Koentgen, F.;Raval, F. M.;Szomolanyi-Tsuda, E.;Pitha, P. M.
通讯作者:
Pitha, P. M.
影响因子:
82.9
作者:
通讯作者:
--
影响因子:
20.3
作者:
Hao, Yi;O'Neill, Patrick;Cancro, Michael P.
通讯作者:
Cancro, Michael P.
DOI:
10.1007/978-1-60761-720-4_11
发表时间:
2012-01-01
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
作者:
Biswas, Partha S;Kang, Kyuho;Pernis, Alessandra B
通讯作者:
Pernis, Alessandra B
影响因子:
32.4
作者:
Kang K;Park SH;Chen J;Qiao Y;Giannopoulou E;Berg K;Hanidu A;Li J;Nabozny G;Kang K;Park-Min KH;Ivashkiv LB
通讯作者:
Ivashkiv LB