实验动物与比较医学 ›› 2026, Vol. 46 ›› Issue (5): 640-649.DOI: 10.12300/j.issn.1674-5817.2026.003

• 实验动物与中药学研究 • 上一篇    下一篇

艾黄素对臭氧暴露诱发小鼠肺部炎症的保护作用及机制研究

李燕平1,2(), 黄姗1,2, 姚政源1,2, 石怡敏2, 隋华秀1,2, 黄侯丹2, 俞燕萍2, 米燕1,2, 林大晖1,2()()   

  1. 1. 厦门医学院机能与临床转化福建高校重点实验室, 厦门 361023
    2. 厦门医学院基础医学院, 厦门 361023
  • 收稿日期:2026-01-04 修回日期:2026-06-04 出版日期:2026-10-25 发布日期:2026-10-16
  • 通讯作者: 林大晖(1980—),男,博士,副教授,研究方向:免疫微环境与药物偶联。E-mail:tahui.lin@foxmail.com。ORCID:0000-0001-7627-6095
  • 作者简介:
    李燕平(1987—),女,学士,实验师,研究方向:呼吸系统疾病防治。E-mail:201900010478@xmmc.edu.cn。ORCID:0009-0004-7088-3598
  • 基金资助:
    福建省中青年教师教育科研项目(科技类)“艾黄素及其衍生物抗炎作用机制研究”(JAT241176)

Protective Effect and Mechanism of Artemitin on Ozone-Induced Pulmonary Inflammation in Mice

LI Yanping1,2(), HUANG Shan1,2, YAO Jengyuan1,2, SHI Yimin2, SUI Huaxiu1,2, HUANG Houtan2, YU Yanping2, MI Yan1,2, LIN Tahui1,2()()   

  1. 1. Key Laboratory of Functional and Clinical Translational Medicine, Fujian Province University, Xiamen Medical College, Xiamen 361023, China
    2. School of Basic Medical Sciences, Xiamen Medical College, Xiamen 361023, China
  • Received:2026-01-04 Revised:2026-06-04 Published:2026-10-25 Online:2026-10-16
  • Correspondence to:
    LIN Tahui (ORCID: 0000-0001-7627-6095), E-mail:

摘要:

目的 探讨艾黄素(artemitin)对臭氧暴露诱发的小鼠肺部炎症是否具有保护作用及其潜在机制。 方法 将32只雄性SPF级C57BL/6小鼠随机分为空白对照组、艾黄素对照组、模型组、艾黄素治疗组,每组8只。艾黄素治疗组每日先腹腔注射艾黄素(20 mg/kg),再持续吸入0.000 25%臭氧1 h;艾黄素对照组每日先腹腔注射艾黄素(20 mg/kg),再吸入洁净空气;模型组每日先腹腔注射等体积生理盐水,再吸入0.000 25%臭氧1 h;空白对照组每日先注射等体积生理盐水,再吸入洁净空气;以上各组均连续处理7 d。采用全身体积描记检测系统检测各组小鼠的肺功能指标;采用ELISA检测支气管肺泡灌洗液中肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)、白细胞介素-1β(interleukin-1β,IL-1β)水平;采用HE染色观察肺组织病理学变化;并采用超高效液相色谱质谱联用对血浆中整体代谢通路的变化进行非靶向代谢组学分析。 结果 与模型组相比,艾黄素治疗能显著改善臭氧引起的肺功能损伤(P<0.05)、降低支气管肺泡灌洗液中TNF-α、IL-1β的蛋白水平(P<0.05)、减轻肺组织炎症细胞浸润和结构破坏。代谢组学结果提示,艾黄素治疗可代偿性增强能量供给和氧化脂质信号,抑制嘌呤代谢与色氨酸衍生通路。 结论 艾黄素对臭氧暴露诱发的小鼠肺部炎症具有明显的保护作用,其通过协同调控色氨酸代谢、能量代谢和脂质炎症介质,从代谢层面改善代谢紊乱,进而抑制下游炎症反应与气道高反应性。本研究不仅揭示了艾黄素治疗气道炎症的多效性机制,还为其临床转化提供了潜在的代谢生物标志物和理论依据。

关键词: 臭氧, 艾黄素, 肺部炎症, 肿瘤坏死因子-α, 白细胞介素-1β, C57BL/6小鼠

Abstract:

Objective To investigate the protective effect of artemitin against ozone (O3)-induced pulmonary inflammation in mice and to explore its underlying mechanism. Methods Thirty-two specific pathogen-free (SPF) male C57BL/6 mice were randomly divided into a blank control group, an artemitin-only control group, an O3-induced model group, and an artemitin-treated group, with 8 mice in each group. In the artemitin-treated group, animals were injected intraperitoneally with artemitin (20 mg/kg) daily, followed by a 1 h exposure to 0.000 25% O3. The artemitin-only control group received the same artemitin injection but was exposed to clean air. The O3-induced model group was injected intraperitoneally with an equal volume of normal saline daily, followed by a 1-h exposure to 0.000 25% O3. The blank control group received the saline injection and was exposed to clean air. All treatments were administered for 7 consecutive days. Pulmonary function indices of the mice in each group were measured using a whole-body plethysmography system. The levels of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) in bronchoalveolar lavage fluid (BALF) were detected by enzyme-linked immunosorbent assay (ELISA). Hematoxylin-eosin (HE) staining was used to observe the histopathological changes in the lung tissue, and ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was employed for untargeted metabolomic analysis to examine the changes in overall metabolic pathways in plasma. Results Compared with the O3-induced model group, artemitin treatment significantly improved O3-induced lung function impairments (P<0.05), lowered the levels of TNF-α and IL-1β in BALF (P<0.05) and alleviated inflammatory cell infiltration and structural damage in lung tissues. Metabolomics results indicated that artemitin treatment compensatorily enhanced energy supply and oxidized lipid signaling, while inhibiting purine metabolism and tryptophan-derived pathways. Conclusion Artemitin exhibits a significant protective effect against O3-induced pulmonary inflammation in mice. It corrects upstream metabolic disorders by synergistically modulating tryptophan metabolism, energy metabolism, and lipid inflammatory mediators, thereby inhibiting downstream inflammatory responses and airway hyperresponsiveness. This study not only reveals the pleiotropic mechanism of artemitin in treating airway inflammation but also provides potential metabolic biomarkers and a theoretical basis for its clinical translation.

Key words: Ozone, Artemitin, Pulmonary inflammation, Tumor necrosis factor-α, Interleukin-1β, C57BL/6 mice

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