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Involvement of interleukin-18 in the pathogenesis of human eosinophilic esophagitis

机译:白细胞介素18参与人嗜酸性粒细胞性食管炎的发病机制

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摘要

IL-18 is induced in food allergy and EoE is food allergen-induced disease. Therefore, we tested the hypothesis whether IL-18 is involved in food allergen-induced EoE pathogenesis. Accordingly, we examined normal SPT+ and SPT - EoE patient blood and biopsy samples for IL-18, IL-18R alpha, ICAM and VCAM expression. Herein, we show increased IL-18 level is highly significant in food allergen SPT+ compared to SPT EoE patients. We also report that IL-18R alpha+ cells and mRNA levels are induced in the esophageal biopsies of EoE patients and blood IL-18 levels correlate with esophageal eosinophilia (P < 0.01). Additionally, we report that the levels of esophageal eosinophil and mast cells correlate with ICAM expression in human EoE. Mechanistically, we show that IL-18 in vitro stimulates iNKT cells and endothelial cells and induce eosinophil active cytokines IL-5 and IL-13. We provide the evidence that IL-18 is critical cytokine involved in activation of iNKT cells and ICAM in promoting human EoE. (C) 2015 Elsevier Inc. All rights reserved.
机译:IL-18在食物过敏中被诱导,而EoE是食物过敏原引起的疾病。因此,我们检验了IL-18是否参与食物过敏原诱导的EoE发病机理的假说。因此,我们检查了正常SPT +和SPT-EoE患者的血液和活检样本中的IL-18,IL-18Rα,ICAM和VCAM表达。在本文中,我们显示与SPT EoE患者相比,食物过敏原SPT +中IL-18水平的升高非常显着。我们还报告说,在EoE患者的食管活检中诱导了IL-18Rα+细胞和mRNA的水平,并且血液IL-18水平与食管嗜酸性粒细胞增多相关(P <0.01)。另外,我们报道了食管嗜酸性粒细胞和肥大细胞的水平与人EoE中的ICAM表达相关。从机制上讲,我们显示IL-18在体外刺激iNKT细胞和内皮细胞,并诱导嗜酸性粒细胞活性细胞因子IL-5和IL-13。我们提供的证据表明,IL-18是参与激活iNKT细胞和ICAM促进人类EoE的关键细胞因子。 (C)2015 Elsevier Inc.保留所有权利。

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