中国当代儿科杂志2024，Vol.26Issue(6)：639-645,7.DOI:10.7499/j.issn.1008-8830.2312023
鸢尾黄素对哮喘幼鼠气道炎症、气道重塑及HMGB1/TLR4/NF-κB通路的影响
Effects of iris xanthin on airway inflammation,airway remodeling,and the HMGB1/TLR4/NF-κB pathway in asthmatic young mice
摘要
Abstract
Objective To explore the effects of iris xanthin on airway inflammation,airway remodeling,and the high mobility group box 1 protein(HMGB1)/Toll-like receptor 4(TLR4)/nuclear factor-κB(NF-κB)pathway in asthmatic young mice.Methods Sixty male BALB/c young mice were randomly assigned into six groups:a blank group,a model group,a dexamethasone group,and low,medium,and high dose groups of iris xanthin,with ten mice per group.Asthma models were induced through intraperitoneal injections of a sensitizing agent[ovalbumin(OVA)20 μg+aluminum hydroxide gel 2 mg],followed by 4%OVA aerosol inhalation.Lung function was measured using a pulmonary function tester to determine lung volume(LV),resting ventilation per minute(VE),and airway reactivity(Penh value).Hematoxylin-eosin(HE)staining was employed to examine and analyze airway remodeling.The contents of interleukin(IL)-1β,IL-6,and tumor necrosis factor alpha(TNF-α)in bronchoalveolar lavage fluid were quantified using ELISA.Real-time fluorescence quantitative polymerase chain reaction and Western blot analysis were used to assess the expression of HMGB1/TLR4/NF-κB pathway-related mRNA and proteins in lung tissues.Results Compared to the model group,the dexamethasone and iris xanthin-treated groups(low,medium,and high doses)exhibited significant increases in LV and VE(P<0.05),with incremental dose-dependent increases observed in the iris xanthin groups.Additionally,Penh values,IL-1β,IL-6,TNF-α,and airway remodeling indicators,along with mRNA levels of HMGB1,TLR4,and NF-κB p65 and protein levels of HMGB1,TLR4,and p-NF-κB p65,were all reduced(P<0.05)in a dose-dependent manner.When compared to the dexamethasone group,the low and medium dose iris xanthin groups showed decreases in LV and VE(P<0.05),whereas Penh values,IL-1β,IL-6,TNF-α,and airway remodeling indicators,along with mRNA levels of HMGB1,TLR4,NF-κB p65 and protein levels of HMGB1,TLR4,and p-NF-κB p65,were increased(P<0.05).No significant differences were noted in these indices between the high dose iris xanthin group and the dexamethasone group(P>0.05).Conclusions Iris xanthin can effectively alleviates airway inflammation and inhibits airway remodeling in asthmatic young mice,possibly through the suppression of the HMGB1/TLR4/NF-κB pathway.关键词
鸢尾黄素/哮喘/气道炎症/气道重塑/HMGB1/TLR4/NF-κB通路/幼鼠Key words
Iris xanthin/Asthma/Airway inflammation/Airway remodeling/HMGB1/TLR4/NF-κB pathway/Young mouse引用本文复制引用
李月云,王晓芳,付艳,王艳蕊..鸢尾黄素对哮喘幼鼠气道炎症、气道重塑及HMGB1/TLR4/NF-κB通路的影响[J].中国当代儿科杂志,2024,26(6):639-645,7.基金项目
2023年度河南省医学科技攻关计划项目(LHGJ20230892). （LHGJ20230892）
