Loss of the molecular clock in myeloid cells exacerbates T cell-mediated CNS autoimmune disease.

Loss of the molecular clock in myeloid cells exacerbates T cell-mediated CNS autoimmune disease.
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髓样细胞中分子钟的丢失加重T细胞介导的CNS自身免疫性疾病

DOI:
10.1038/s41467-017-02111-0
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发表时间:
2017-12-12
影响因子:
16.6
通讯作者:
Curtis AM
Curtis AM
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Sutton CE;Finlay CM;Raverdeau M;Early JO;DeCourcey J;Zaslona Z;O'Neill LAJ;Mills KHG;Curtis AM

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转录因子BMAL 1是分子钟的核心组成部分,调节驱动行为和生理24小时(昼夜)节律的生物学途径。分子钟对先天免疫功能有着深远的影响,而昼夜节律的破坏与多发性硬化症(MS)的发病率增加有关。然而,这种关联的机制尚不清楚。在这里,我们表明,BMAL 1和时间的一天调节的积累和激活的各种免疫细胞在中枢神经系统自身免疫性疾病模型,实验性自身免疫性脑脊髓炎(EAE)。在骨髓细胞中,BMAL 1维持抗炎反应并减少T细胞极化。髓样BMAL 1缺失或诱导EAE的午间免疫通过分泌IL-1β的CD 11b + Ly 6Chi单核细胞的扩增和浸润在CNS中产生炎症环境,导致致病性IL-17+/IFN-γ+ T细胞增加。这些发现证明了分子钟在自身免疫条件下调节先天性和适应性免疫串扰的重要性。已经报道了分子钟对免疫反应的昼夜节律控制,但其潜在机制尚不清楚。在这里,作者表明,主昼夜节律基因Bmal 1对于调节骨髓细胞的稳态以控制自身免疫中的促炎性IL-17+/IFN-γ+ T细胞是必不可少的。
The transcription factor BMAL1 is a core component of the molecular clock, regulating biological pathways that drive 24 h (circadian) rhythms in behaviour and physiology. The molecular clock has a profound influence on innate immune function, and circadian disruption is linked with increased incidence of multiple sclerosis (MS). However, the mechanisms underlying this association are unknown. Here we show that BMAL1 and time-of-day regulate the accumulation and activation of various immune cells in a CNS autoimmune disease model, experimental autoimmune encephalomyelitis (EAE). In myeloid cells, BMAL1 maintains anti-inflammatory responses and reduces T cell polarization. Loss of myeloid BMAL1 or midday immunizations to induce EAE create an inflammatory environment in the CNS through expansion and infiltration of IL-1β-secreting CD11b+Ly6Chi monocytes, resulting in increased pathogenic IL-17+/IFN-γ+ T cells. These findings demonstrate the importance of the molecular clock in modulating innate and adaptive immune crosstalk under autoimmune conditions. Circadian controls of immune responses by the molecular clock have been reported, but the underlying mechanisms are unclear. Here the authors show that the master circadian gene, Bmal1, is essential for modulating the homeostasis of myeloid cells to control pro-inflammatory IL-17+/IFN-γ+ T cells in autoimmunity.
淋巴细胞昼夜节律的时钟控制淋巴结运输和适应性免疫反应。
DOI: 10.1016/j.immuni.2016.12.011
发表时间: 2017-01-17
期刊: Immunity
影响因子: 32.4
作者:
Druzd D;Matveeva O;Ince L;Harrison U;He W;Schmal C;Herzel H;Tsang AH;Kawakami N;Leliavski A;Uhl O;Yao L;Sander LE;Chen CS;Kraus K;de Juan A;Hergenhan SM;Ehlers M;Koletzko B;Haas R;Solbach W;Oster H;Scheiermann C
通讯作者: Scheiermann C
全天候免疫。
DOI: 10.1126/science.aah4966
发表时间: 2016-11-25
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Man K;Loudon A;Chawla A
通讯作者: Chawla A
DOI: 10.1096/fj.201600353r
发表时间: 2016-11
期刊: FASEB journal : official publication of the Federation of American Societies for Experimental Biology
影响因子: --
作者:
Hand LE;Hopwood TW;Dickson SH;Walker AL;Loudon AS;Ray DW;Bechtold DA;Gibbs JE
通讯作者: Gibbs JE
DOI: 10.1093/brain/awp144
发表时间: 2009-09-01
期刊: BRAIN
影响因子: 14.5
作者:
Mildner, Alexander;Mack, Matthias;Prinz, Marco
通讯作者: Prinz, Marco
DOI: 10.1073/pnas.1106750109
发表时间: 2012-01-10
影响因子: 11.1
作者:
Gibbs, Julie E.;Blaikley, John;Loudon, Andrew S. I.
通讯作者: Loudon, Andrew S. I.