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首页> 外文期刊>EBioMedicine >Research paper A peptide derived from the core β-sheet region of TIRAP decoys TLR4 and reduces inflammatory and autoimmune symptoms in murine models
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Research paper A peptide derived from the core β-sheet region of TIRAP decoys TLR4 and reduces inflammatory and autoimmune symptoms in murine models

机译:研究纸衍生自TiroAP诱饵TLR4的核心β-薄片区的肽,并在鼠模型中减少炎症和自身免疫症状

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Background TLRs are some of the actively pursued drug-targets in immune disorders. Owing to a recent surge in the cognizance of TLR structural biology and signalling pathways, numerous therapeutic modulators, ranging from low-molecular-weight organic compounds to polypeptides and nucleic acid agents have been developed. Methods A penetratin-conjugated small peptide (TIP3), derived from the core β-sheet of TIRAP, was evaluated in vitro by monitoring the TLR-mediated cytokine induction and quantifying the protein expression using western blot. The therapeutic potential of TIP3 was further evaluated in TLR-dependent in vivo disease models. Findings TIP3 blocks the TLR4-mediated cytokine production through both the MyD88- and TRIF-dependent pathways. A similar inhibitory-effect was exhibited for TLR3 but not on other TLRs. A profound therapeutic effect was observed in vivo , where TIP3 successfully alleviated the inflammatory response in mice model of collagen-induced arthritis and ameliorated the disease symptoms in psoriasis and SLE models. Interpretation Our data suggest that TIP3 may be a potential lead candidate for the development of effective therapeutics against TLR-mediated autoimmune disorders. Funding This work was supported by the National Research Foundation of Korea ( NRF-2019M3A9A8065098 , 2019M3D1A1078940 and 2019R1A6A1A11051471 ). The funders did not have any role in the design of the present study, data collection, data analysis, interpretation, or the writing of the manuscript.
机译:背景技术TLR是免疫障碍中的一些积极追踪的药物靶标。由于最近潮流的TLR结构生物学和信号通路,已经开发出从低分子量有机化合物与多肽和核酸试剂的许多治疗调节剂。方法通过监测TLR介导的细胞因子诱导和使用Western印迹定量蛋白质表达,在体外评估衍生自TiroAP核心β-片材的渗透素缀合的小肽(Tip3)。在体内疾病模型中进一步评估TIP3的治疗潜力。调查结果Tip3通过MyD88和TRIF依赖性途径阻断TLR4介导的细胞因子产生。表现出类似的抑制效应,但TLR3呈现,但不是在其他TLR上。体内观察到深度治疗效果,其中Tip3成功地减轻了胶原蛋白诱导的关节炎小鼠模型中的炎症反应,并改善了牛皮癣和SLE模型中的疾病症状。解释我们的数据表明,TIP3可能是对针对TLR介导的自身免疫疾病进行有效治疗的潜在领导候选者。这项工作得到了韩国国家研究基金会的支持(NRF-2019M3A9A8065098,2019M3D1A1078940和2019R1A6A1A11051471)。该资助者在本研究的设计中没有任何作用,数据收集,数据分析,解释或手稿的写作。

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