Nitric Oxide Donor Metallodrug: Single-Inhaler Proposal for Rescue in Acute Allergic Asthma Crises.

IF 3.6 3区 生物学 Q1 BIOLOGY
Paula Priscila Correia Costa, Stefanie Bressan Waller, Hálef Herbet Ramos, Belarmino Eugênio Lopes Neto, Wesley Lyeverton Correia Ribeiro
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引用次数: 0

Abstract

Allergic asthma is characterized by chronic airway inflammation and recurrent bronchial hyperreactivity, highlighting the need for rapid therapeutic interventions during acute crises. This study aimed to assess the potential of a single-dose administration of the ruthenium nitrosyl complex cis-[Ru(bpy)2(2-MIM)(NO)](PG6)3 (named as FOR811A) as a fast-acting treatment in a murine model of allergic asthma. Female Swiss mice were sensitized with ovalbumin for the induction of asthma and subjected to inhalation challenges. The experimental groups included controls and ovalbumin-sensitized mice receiving FOR811A (0.75 mg/kg) or saline (NaCl 0.9%), both by gavage. Lung tissues were collected for analyses of oxidative damage (nitrite/nitrate and GSH), inflammatory markers (myeloperoxidase, IL-1β, and IL-4), and histological assessment. The results showed that, while FOR811A did not significantly reduce oxidative damage or overall inflammation, it effectively decreased IL-4 levels, indicating a modulation of the Th2 immune response without affecting IL-1β levels (Th1 response). These findings suggest that a single-dose administration of FOR811A may provide a rapid therapeutic effect in allergic asthma crises by promoting smooth muscle relaxation and modulating immune responses. Further research is warranted to explore its clinical utility as a fast-acting rescue medication for acute asthma management.

一氧化氮供体金属药物:单吸入器抢救急性过敏性哮喘危象的建议。
过敏性哮喘的特点是慢性气道炎症和复发性支气管高反应性,这突出了在急性危机期间快速治疗干预的必要性。本研究旨在评估单剂量给药钌亚硝基络合物顺式-[Ru(bpy)2(2- mim)(NO)](PG6)3(命名为FOR811A)作为过敏性哮喘小鼠模型的速效治疗的潜力。雌性瑞士小鼠用卵清蛋白致敏诱导哮喘,并受到吸入挑战。实验组包括对照组和卵清蛋白致敏小鼠,分别给予FOR811A (0.75 mg/kg)或生理盐水(NaCl 0.9%)灌胃。收集肺组织,分析氧化损伤(亚硝酸盐/硝酸盐和GSH),炎症标志物(髓过氧化物酶,IL-1β和IL-4),并进行组织学评估。结果表明,虽然FOR811A没有显著降低氧化损伤或整体炎症,但它能有效降低IL-4水平,表明在不影响IL-1β水平(Th1反应)的情况下调节Th2免疫反应。这些发现表明,单剂量给药FOR811A可能通过促进平滑肌松弛和调节免疫反应,在过敏性哮喘危重期提供快速治疗效果。进一步的研究需要探索其作为急性哮喘治疗的速效抢救药物的临床应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Biology-Basel
Biology-Basel Biological Science-Biological Science
CiteScore
5.70
自引率
4.80%
发文量
1618
审稿时长
11 weeks
期刊介绍: Biology (ISSN 2079-7737) is an international, peer-reviewed, quick-refereeing open access journal of Biological Science published by MDPI online. It publishes reviews, research papers and communications in all areas of biology and at the interface of related disciplines. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material.
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