The autoimmunity-associated gene PTPN22 potentiates toll-like receptor-driven, type 1 interferon-dependent immunity.

The autoimmunity-associated gene PTPN22 potentiates toll-like receptor-driven, type 1 interferon-dependent immunity.
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DOI:
10.1016/j.immuni.2013.06.013
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发表时间:
2013-07-25
期刊:
影响因子:
32.4
通讯作者:
Peterson EJ
Peterson EJ
中科院分区:
医学1区
文献类型:
--
作者:
Wang Y;Shaked I;Stanford SM;Zhou W;Curtsinger JM;Mikulski Z;Shaheen ZR;Cheng G;Sawatzke K;Campbell AM;Auger JL;Bilgic H;Shoyama FM;Schmeling DO;Balfour HH Jr;Hasegawa K;Chan AC;Corbett JA;Binstadt BA;Mescher MF;Ley K;Bottini N;Peterson EJ

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免疫细胞通过Toll样受体(TLR)感知微生物产物,TLR触发宿主防御反应,包括1型干扰素(IFN)分泌。蛋白酪氨酸磷酸酶非受体22(PTPN 22)基因编码多态性是人类自身免疫性和感染性疾病的易感等位基因。我们报告说,Ptpn22选择性调节1型干扰素生产后,TLR参与骨髓细胞。Ptpn22促进宿主的抗病毒反应,并且对于TLR激动剂诱导的1型IFN依赖性抑制结肠炎和关节炎中的炎症至关重要。PTPN22与TNF受体相关因子3(TRAF3)直接相关,并促进TRAF3赖氨酸63连接的泛素化。疾病相关的PTPN22W变体未能促进TRAF3泛素化、1型IFN上调和1型IFN依赖性关节炎抑制。这些发现为人类自身免疫“风险”基因在调节宿主防御和炎症中建立了一种候选的先天免疫作用机制。
Immune cells sense microbial products through Toll-like receptors (TLR), which trigger host defense responses including type 1 interferons (IFNs) secretion. A coding polymorphism in the protein tyrosine phosphatase nonreceptor type 22 (PTPN22) gene is a susceptibility allele for human autoimmune and infectious disease. We report that Ptpn22 selectively regulated type 1 IFN production after TLR engagement in myeloid cells. Ptpn22 promoted host antiviral responses and was critical for TLR agonist-induced, type 1 IFN-dependent suppression of inflammation in colitis and arthritis. PTPN22 directly associated with TNF receptor-associated factor 3 (TRAF3) and promotes TRAF3 lysine 63-linked ubiquitination. The disease-associated PTPN22W variant failed to promote TRAF3 ubiquitination, type 1 IFN upregulation, and type 1 IFN-dependent suppression of arthritis. The findings establish a candidate innate immune mechanism of action for a human autoimmunity “risk” gene in the regulation of host defense and inflammation.
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