实验动物与比较医学 ›› 2026, Vol. 46 ›› Issue (3): 311-320.DOI: 10.12300/j.issn.1674-5817.2025.203

• 人类疾病动物模型 •    下一篇

基于miRNA测序分析清肺排毒汤防治小鼠急性肺损伤的分子机制研究

李龙雪1(), 万崇凡2, 张琦2, 雷茹婷2, 王潇玥3, 程乐妍2, 赖琦2, 刘荣华4()(), 刘漩1()(), 徐铁龙5()()   

  1. 1.江西中医药大学实验动物科技中心, 南昌 330004
    2.江西中医药大学药学院, 南昌 330004
    3.青岛市中医医院(青岛大学附属青岛市海慈医院), 青岛 266033
    4.江西中医药大学中药药效物质基础江西省重点实验室, 南昌 330004
    5.江西中医药大学循证医学研究中心, 南昌 330004
  • 收稿日期:2025-12-10 修回日期:2026-04-12 出版日期:2026-06-25 发布日期:2026-06-19
  • 通讯作者:
    刘荣华(1964—),男,博士,教授,博士生导师,研究方向:中药药效物质基础研究。E-mail: rhliujxucm@163.com。ORCID:0009-0000-7015-6324
    刘 漩(1989—),女,硕士,讲师,研究方向:中药药效学研究。E-mail: liuxuanglg@126.com。ORCID:0009-0007-9226-5514
    徐铁龙(1986—),男,博士,副教授,博士生导师,研究方向:中药抗病毒研究。E-mail: jxciq_xtl@126.com。ORCID:0000-0001-9432-9584
  • 作者简介:李龙雪(1988—),女,硕士,实验师,研究方向:中药药效学研究。E-mail: llx669822@163.com。ORCID:0000-0002-9602-6269
  • 基金资助:
    江西省教育厅科学技术研究项目“清肺排毒汤差异调控miRNA-mRNA治疗冠状病毒性肺炎分子机制研究”(GJJ2200921);国家自然科学基金资助项目“清肺排毒汤差异调控miRNA靶向抑制冠状病毒复制研究”(82141214);江西省中医药管理局科技计划项目“清肺排毒汤功能性miRNA表达谱检测及其作用谱研究”(2023A0391);2024年江西省科技专项资金(科技计划第三批)项目“源于经典名方的抗肺结节等现代疾病的中药新药成药性研究”(20243BCC31009);江西省重点实验室组建项目-江西中医药大学“中药药效物质基础江西省重点实验室”(2024SSY07102)

Molecular Mechanisms of Qingfei Paidu Decoction in the Prevention and Treatment of Acute Lung Injury in Mice Based on miRNA Sequencing

LI Longxue1(), WAN Chongfan2, ZHANG Qi2, LEI Ruting2, WANG Xiaoyue3, CHENG Leyan2, LAI Qi2, LIU Ronghua4()(), LIU Xuan1()(), XU Tielong5()()   

  1. 1.Laboratory Animal Science and Technology Center, Jiangxi University of Chinese Medicine, Nanchang 330004, China
    2.School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330004, China
    3.Qingdao Traditional Chinese Medicine Hospital, Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao 266033, China
    4.Jiangxi Provincial Key Laboratory of Effective Material Basis of TCM, Jiangxi University of Chinese Medicine, Nanchang 330004, China
    5.Evidence-Based Medicine Research Center, Jiangxi University of Chinese Medicine, Nanchang 330004, China
  • Received:2025-12-10 Revised:2026-04-12 Published:2026-06-25 Online:2026-06-19
  • Contact: LIU Ronghua (ORCID: 0009-0000-7015-6324), E-mail: rhliujxucm@163.com
    LIU Xuan (ORCID: 0009-0007-9226-5514), E-mail: liuxuanglg@126.com
    XU Tielong(ORCID: 0000-0001-9432-9584), E-mail: jxciq_xtl@126.com

摘要:

目的 基于miRNA测序技术探讨清肺排毒汤(Qingfei Paidu decoction,QFPDD)对小鼠急性肺损伤的防治作用及其分子机制。 方法 24只4周龄雄性KM小鼠随机分为对照组、模型组和QFPDD组,每组8只。适应性饲养1周后,对照组和模型组灌胃给予超纯水(0.2 mL/次),QFPDD组灌胃给予QFPDD汤剂(0.2 mL/次,含生药1.6 g/mL),2次/d,连续8 d;第2~8天,模型组和QFPDD组给予2.5 g/L脂多糖(lipopolysaccharide,LPS)水溶液4 mL雾化,连续雾化7 d。第9天深度麻醉后通过眼底静脉丛采血,取小鼠肺组织,称取各组小鼠体重和肺组织质量,计算肺系数。采用ELISA法检测小鼠血清中炎症因子肿瘤坏死因子α(tumor necrosis factor-α,TNF-α)、白细胞介素(interleukin,IL)-1β和IL-6水平。对肺组织进行石蜡切片后行HE染色,观察肺组织形态学变化。用Illumina HiSeq 2500测序平台检测小鼠肺组织miRNA表达谱,通过数据库预测差异表达miRNA的靶基因,利用基因本体(gene ontology,GO)和京都基因与基因组数据库(Kyoto Encyclopedia of Genes and Genomes,KEGG)富集分析差异表达miRNA的靶基因功能;通过反转录实时荧光定量PCR技术对差异表达的miRNA进行验证。 结果 与对照组相比,模型组小鼠体重增长趋势一致,但肺系数显著升高(P<0.01)。ELISA结果显示,与对照组相比,模型组小鼠血清TNF-α和IL-6水平显著升高(P<0.01);与模型组相比,QFPDD组小鼠血清TNF-α和IL-6水平显著降低(P<0.05)。HE染色结果显示,与对照组相比,模型组小鼠肺泡间隔增宽,大量炎症细胞浸润,部分肺泡扩张,少量毛细血管扩张伴淤血;与模型组相比,QFPDD组小鼠肺泡间隔稍增宽,少量炎症细胞浸润。miRNA测序结合交集分析筛选出模型组与对照组、QFPDD组与模型组之间均存在显著差异的13个miRNA,其中6个miRNA(分别为mmu-miR-203-3p、mmu-miR-181b-5p_R-1、hsa-miR-4286_R+1、mmu-miR-1843b-5p_L+1R-1_2、mmu-miR-22-3p和mmu-miR-1964-3p)在模型组中显著上调(P<0.05),QFPDD治疗后显著下调(P<0.05),呈治疗性回调趋势。GO分析显示,差异表达miRNA的靶基因主要富集于RNA聚合酶Ⅱ转录调控等生物学过程。KEGG分析显示,靶基因主要富集于丝裂原活化蛋白激酶(mitogen-activated protein kinase,MAPK)信号通路。针对mmu-miR-203-3p的PCR验证结果显示与测序分析结果一致。 结论 QFPDD可能通过调控mmu-miR-203-3p等表达,调节炎症反应和MAPK信号通路,参与肺损伤的病理过程,发挥防治急性肺损伤的作用。

关键词: 清肺排毒汤, 急性肺损伤, miR-203-3p, 炎症, MAPK信号通路, KM小鼠

Abstract:

Objective To investigate the preventive and therapeutic effects of Qingfei Paidu decoction (QFPDD) on acute lung injury (ALI) in mice and its underlying molecular mechanisms based on miRNA sequencing technology. Methods Twenty-four 4-week-old male KM mice were randomly divided into a control group, a model group, and a QFPDD group (n = 8 per group). After one week of acclimatization, mice in the control and model groups were intragastrically administered ultrapure water (0.2 mL per dose), whereas mice in the QFPDD group were intragastrically administered QFPDD (1.6 g crude drug/mL, 0.2 mL per dose), twice daily for 8 consecutive days. On days 2–8, mice in the model and QFPDD groups were exposed to aerosolized lipopolysaccharide (LPS) solution (2.5 g/L, 4 mL per exposure) for 7 consecutive days. On day 9, blood was collected via the retro-orbital venous plexus under deep anesthesia, and lung tissues were harvested. Body weight and lung weight were measured, and the lung coefficient was calculated. Serum levels of inflammatory cytokines tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, and IL-6 were detected by ELISA. Lung histopathological changes were observed by HE staining of paraffin-embedded sections. miRNA expression profiles in lung tissues were analyzed using the Illumina HiSeq 2500 sequencing platform. Target genes of differentially expressed miRNAs were predicted using bioinformatics databases, and functional enrichment analysis of these target genes was performed using gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. Differentially expressed miRNAs were validated by reverse transcription quantitative real-time PCR (RT-qPCR). Results Compared with the control group, the model group showed a consistent body weight growth trend but a significantly increased lung coefficient (P < 0.01). ELISA results showed that serum levels of TNF-α and IL-6 were significantly elevated in the model group compared with the control group (P < 0.01), whereas QFPDD treatment significantly reduced serum TNF-α and IL-6 levels compared with the model group (P < 0.05). HE staining showed that, compared with the control group, the model group exhibited widened alveolar septa, massive inflammatory cell infiltration, partial alveolar expansion, and mild capillary dilation with congestion. In contrast, the QFPDD group showed only slightly widened alveolar septa and mild inflammatory cell infiltration compared with the model group. Intersection analysis of miRNA sequencing data identified 13 differentially expressed miRNAs common to both the model vs. control and QFPDD vs. model comparisons. Among them, 6 miRNAs (mmu-miR-203-3p, mmu-miR-181b-5p_R-1, hsa-miR-4286_R+1, mmu-miR-1843b-5p_L+1R-1_2, mmu-miR-22-3p, and mmu-miR-1964-3p) were significantly up-regulated in the model group (P < 0.05) and significantly down-regulated after QFPDD treatment (P < 0.05), showing a therapeutic reversal trend. GO analysis revealed that the target genes of the differentially expressed miRNAs were mainly enriched in biological processes such as RNA polymerase Ⅱ transcriptional regulation. KEGG analysis indicated that target genes were mainly enriched in signaling pathways including the mitogen-activated protein kinase (MAPK) pathway. RT-qPCR validation result for mmu-miR-203-3p was consistent with the sequencing analysis results. Conclusion QFPDD may exert preventive and therapeutic effects against ALI by regulating the expression of mmu-miR-203-3p and other miRNAs, thereby modulating inflammatory responses and the MAPK signaling pathway and participating in the pathological process of lung injury.

Key words: Qingfei Paidu decoction, Acute lung injury, miR-203-3p, Inflammation, MAPK signaling pathway, KM mice

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