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Down modulation of human TLR3 function by a monoclonal antibody

机译:单克隆抗体下调人TLR3功能

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Toll-like receptors are a family of pattern-recognition receptors that contribute to the innate immune response. Toll-like receptor 3 (TLR3) signals in response to foreign, endogenous and synthetic ligands including viral dsRNA, bacterial RNA, mitochondrial RNA, endogenous necrotic cell mRNA and the synthetic dsRNA analog, poly(I:C). We have generated a monoclonal antibody (mAb CNTO2424) that recognizes the extracellular domain (ECD) of human TLR3 in a conformation-dependent manner. CNTO2424 down-regulates poly(I:C)-induced production of IL-6, IL-8, MCP-1, RANTES, and IP-10 in human lung epithelial cells. In addition, mAb CNTO2424 was able to interfere with the known TLR3-dependent signaling pathways, namely NF-kappa B, IRF-3/ISRE, and p38 MAPK. The generation of this neutralizing anti-TLR3 mAb provides a unique tool to better understand TLR3 signaling and potential cross-talk between TLR3 and other molecules. (C) 2007 Elsevier Inc. All rights reserved.
机译:Toll样受体是模式识别受体的一个家族,有助于先天免疫反应。 Toll样受体3(TLR3)响应外源,内源和合成配体,包括病毒dsRNA,细菌RNA,线粒体RNA,内源性坏死细胞mRNA和合成dsRNA类似物poly(I:C)。我们已经产生了单克隆抗体(mAb CNTO2424),该抗体以构象依赖性方式识别人TLR3的胞外域(ECD)。 CNTO2424下调人肺上皮细胞中Poly(I:C)诱导的IL-6,IL-8,MCP-1,RANTES和IP-10的产生。另外,mAb CNTO2424能够干扰已知的TLR3依赖性信号通路,即NF-κB,IRF-3 / ISRE和p38 MAPK。此中和性抗TLR3 mAb的产生提供了一个独特的工具,可以更好地了解TLR3信号传导以及TLR3与其他分子之间的潜在串扰。 (C)2007 Elsevier Inc.保留所有权利。

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