NLRP3 inhibition attenuates the allergic rhinitis symptoms in a mouse model.

IF 2.3 4区 医学 Q3 ALLERGY
Minhyung Lee, Young-Kyung Ko, Sehun Jang, Chan Hee Gil, Kyoung Mi Eun, Yu-Lian Zhang, Sung-Woo Cho, Dae Woo Kim, Hyun Jik Kim, Chae-Seo Rhee
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引用次数: 0

Abstract

Background: Recent human and animal studies have demonstrated that Nod-like receptor family, pyrin domain-containing 3 (NLRP3) inflammasome is closely involved in the development of allergic diseases.

Objective: To identify the mechanism underlying the activation of NLRP3 inflammasome signaling pathway in an ovalbumin (OVA)-induced allergic rhinitis (AR) mice model and to validate the effect of a specific inhibitor of the NLRP3, MCC950.

Methods: Mice were divided into three groups and each group consisted of ten mice (saline group, the negative control group; OVA group, the OVA-induced AR model group; and OVA+MCC group, treated with 10 mg/kg MCC950). MCC950 was administered intraperitoneally every second day. Multiple parameters of AR, including NLRP3, caspase-1, interleukin (IL)-1β, and IL-18 were evaluated by using ELISA, RT-qPCR, histopathology, and immunohistochemistry.

Results: The mRNA and protein levels of NLRP3, caspase-1, IL-1β and IL-18 were upregulated in the OVA group compared with those of the saline group. MCC950 significantly inhibited the mRNA and protein levels of NLRP3, caspase-1, IL-1β and IL-18 in nasal tissue. Further, AR symptoms and eosinophil count were normalized after MCC950 treatment. However, OVA-specific IgE was not restored in the OVA+MCC group.

Conclusion: NLRP3 inflammasome signaling pathway may be an alternative pathway to induce AR symptoms in OVA-induced AR model. MCC950 is a specific inhibitor of NLRP3 cascade, which attenuates AR symptoms regardless of IgE.

抑制 NLRP3 可减轻小鼠模型的过敏性鼻炎症状。
背景:最近的人类和动物研究表明,Nod 样受体家族、含 pyrin 结构域的 3(NLRP3)炎性体与过敏性疾病的发生密切相关:最近的人类和动物研究表明,类结节受体家族、含吡啶结构域的3(NLRP3)炎性体与过敏性疾病的发生密切相关:鉴定卵清蛋白(OVA)诱导的过敏性鼻炎(AR)小鼠模型中NLRP3炎性体信号通路的激活机制,并验证NLRP3的特异性抑制剂MCC950的作用:小鼠分为三组,每组十只(生理盐水组,阴性对照组;OVA组,OVA诱导的AR模型组;OVA+MCC组,用10 mg/kg MCC950治疗)。每隔一天腹腔注射一次 MCC950。通过ELISA、RT-qPCR、组织病理学和免疫组化等方法评估了AR的多个参数,包括NLRP3、caspase-1、白细胞介素(IL)-1β和IL-18:结果:与生理盐水组相比,OVA组NLRP3、caspase-1、IL-1β和IL-18的mRNA和蛋白水平均上调。MCC950 能明显抑制鼻腔组织中 NLRP3、caspase-1、IL-1β 和 IL-18 的 mRNA 和蛋白水平。此外,MCC950治疗后,AR症状和嗜酸性粒细胞计数恢复正常。然而,OVA+MCC组的OVA特异性IgE并未恢复:结论:NLRP3炎性体信号通路可能是OVA诱导的AR模型中诱导AR症状的另一种途径。结论:NLRP3炎性体信号通路可能是OVA诱导的AR模型中诱导AR症状的另一条途径,MCC950是NLRP3级联的特异性抑制剂,它能减轻AR症状,而与IgE无关。
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来源期刊
CiteScore
12.80
自引率
0.00%
发文量
74
审稿时长
>12 weeks
期刊介绍: The Asian Pacific Journal of Allergy and Immunology (APJAI) is an online open access journal with the recent impact factor (2018) 1.747 APJAI published 4 times per annum (March, June, September, December). Four issues constitute one volume. APJAI publishes original research articles of basic science, clinical science and reviews on various aspects of allergy and immunology. This journal is an official journal of and published by the Allergy, Asthma and Immunology Association, Thailand. The scopes include mechanism, pathogenesis, host-pathogen interaction, host-environment interaction, allergic diseases, immune-mediated diseases, epidemiology, diagnosis, treatment and prevention, immunotherapy, and vaccine. All papers are published in English and are refereed to international standards.
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