Deficiency in IRAK4 activity attenuates manifestations of murine Lupus.
Deficiency in IRAK4 activity attenuates manifestations of murine Lupus.
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IRAK4活性的缺乏减弱了鼠狼疮的表现。
DOI:
10.1002/eji.201646641
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发表时间:
2017-05
影响因子:
5.4
通讯作者:
Medvedev AE
中科院分区:
文献类型:
--
作者:
Murphy M;Pattabiraman G;Manavalan TT;Medvedev AE
Interleukin-1 receptor-associated kinase (IRAK) 4 mediates host defense against infections. As an active kinase, IRAK4 elicits full spectra of myeloid differentiation primary response protein (MyD) 88-dependent responses, while kinase-inactive IRAK4 induces a subset of cytokines and negative regulators whose expression is not regulated by mRNA stability. IRAK4 kinase activity is critical for resistance against Streptococcus pneumonia, but its involvement in autoimmunity is incompletely understood. In this study, we determined the role of IRAK4 kinase activity in murine lupus. Lupus development in BXSB mice expressing the Y chromosome autoimmunity accelerator (Yaa) increased basal and Toll-like receptor (TLR) 4/7-induced phosphorylation of mitogen-activated protein kinases, p65 nuclear factor-κB (NF-κB), enhanced tumor necrosis factor (TNF)-α and C-C motif chemokine ligand (CCL) 5 gene expression in splenic macrophages, but decreased levels of Toll-interacting protein and IRAK-M, without affecting IRAK4 or IRAK1 expression. Mice harboring kinase-inactive IRAK4 on the lupus-prone Yaa background manifested blunted TLR signaling in macrophages and reduced glomerulonephritis, splenomegaly, serum anti-nuclear antibodies, numbers of splenic macrophages, total and TNF-α+ dendritic cells, activated T- and B-lymphocytes, and lower TNF-α expression in macrophages compared to lupus-prone mice with functional IRAK4. Thus, IRAK4 kinase activity contributes to murine lupus and could represent a new therapeutic target.
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影响因子:
32.4
作者:
Cucak, Helena;Yrlid, Ulf;Johansson-Lindbom, Bengt
通讯作者:
Johansson-Lindbom, Bengt
影响因子:
16
作者:
Mizuno, H;Mal, TK;Miyawakil, A
通讯作者:
Miyawakil, A
影响因子:
32.4
作者:
Moon, James J.;Chu, H. Hamlet;Jenkins, Marc K.
通讯作者:
Jenkins, Marc K.
影响因子:
64.8
作者:
Sallusto, F;Lenig, D;Lanzavecchia, A
通讯作者:
Lanzavecchia, A
DOI:
10.4049/jimmunol.1202805
发表时间:
2013-02-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Bromley SK;Yan S;Tomura M;Kanagawa O;Luster AD
通讯作者:
Luster AD