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中华肺部疾病杂志(电子版) ›› 2025, Vol. 18 ›› Issue (03) : 355 -361. doi: 10.3877/cma.j.issn.1674-6902.2025.03.003

论著

白细胞介素-10 调节辅助性T 细胞17/调节性T 细胞对小鼠输血相关急性肺损伤的作用研究
杨春1, 游洋伟2, 周宇2, 林泽超3, 刘亮4, 袁堃4,()   
  1. 1. 610200 成都,成都市双流区第一人民医院·四川大学华西空港医院输血科
    2. 610200 成都,成都市双流区第一人民医院·四川大学华西空港医院检验科
    3. 610097 成都,成都上锦南府医院病理科
    4. 610000 成都,成都市第一人民医院呼吸与重症医学科
  • 收稿日期:2024-09-03 出版日期:2025-06-25
  • 通信作者: 袁堃
  • 基金资助:
    四川省抗癌协会科研资金专项(齐鲁)科研课题(XH2023130)

Study on the effects of interleukin-10 in mice with transfusion-related acute lung injury by regulating the helper T cell 17/regulatory T cell

Chun Yang1, Yangwei You2, Yu Zhou2, Zechao Lin3, Liang Liu4, Kun Yuan4,()   

  1. 1. Department of Blood Transfusion,The First People's Hospital of Shuangliu District,Sichuan University,West China Airport Hospital,Chengdu 610200,China
    2. Department of Clinical Laboratory,The First People's Hospital of Shuangliu District,Sichuan University,West China Airport Hospital,Chengdu 610200,China
    3. Department of Pathology,Chengdu Shangjin Nanfu Hospital,Chengdu 610097,China
    4. Department of Respiratory and Critical Care Medicine,Chengdu First People's Hospital,Chengdu 610000,China
  • Received:2024-09-03 Published:2025-06-25
  • Corresponding author: Kun Yuan
引用本文:

杨春, 游洋伟, 周宇, 林泽超, 刘亮, 袁堃. 白细胞介素-10 调节辅助性T 细胞17/调节性T 细胞对小鼠输血相关急性肺损伤的作用研究[J/OL]. 中华肺部疾病杂志(电子版), 2025, 18(03): 355-361.

Chun Yang, Yangwei You, Yu Zhou, Zechao Lin, Liang Liu, Kun Yuan. Study on the effects of interleukin-10 in mice with transfusion-related acute lung injury by regulating the helper T cell 17/regulatory T cell[J/OL]. Chinese Journal of Lung Diseases(Electronic Edition), 2025, 18(03): 355-361.

目的

分析白细胞介素-10(IL-10)对辅助性T 细胞17(Th17)/调节性T 细胞(Treg)细胞平衡的影响及对小鼠输血相关急性肺损伤(TRALI)的作用。

方法

将60 只小鼠分为对照组、TRALI 组、IL-10-L 组、IL-10-H 组,每组15 只;监测动脉氧分压(PaO2)、动脉血二氧化碳分庒(PaCO2),计算氧合指数(OI)及肺组织湿/干重比(W/D);采用酶联免疫吸附法检测支气管肺泡灌洗液(BALF)炎症因子白细胞介素-6(IL-6)、干扰素-γ(INF-γ)、肿瘤坏死因子-α(TNF-α)、白细胞介素-17A(IL-17A)水平,检测BALF 细胞总数及中性粒细胞比例;检测髓过氧化物酶(MPO)活性;采用流式细胞术检测外周血Th17/Treg 细胞数量;采用逆转录-定量聚合酶链反应(RT-qPCR)、蛋白质免疫印迹(WB)检测肺组织Th17/Treg 细胞相关标志物IL-17A、维甲酸相关孤儿受体γt(RORγt)、叉头盒蛋白P3(Foxp3)、糖皮质激素诱导的肿瘤坏死因子受体相关蛋白(GITR)、细胞毒性T 淋巴细胞相关蛋白4(CTLA-4)mRNA 和蛋白水平。

结果

与对照组相比,TRALI 组PaO2、OI 水平降低(t=5.921、8.216,P<0.001),PaCO2 水平、肺组织(W/D)、MPO 活性升高(t=10.257、7.843、3.987,P<0.001);除对照组,每组肺组织不同程度损伤,肺泡间隔及肺泡腔内红细胞和炎性细胞不同程度增厚和浸润;外周血Th17 细胞、Th17/Treg 比值上升(t=9.836、7.125,P<0.05),Treg 细胞下降(t=6.254,P<0.05);肺组织IL-17A、RORγt mRNA 和蛋白水平上升(t=4.850、8.966、6.401、3.248,P<0.05),Foxp3、GITR、CTLA-4 mRNA 和蛋白水平下降(t=3.567、10.190、7.632、4.610、8.789、2.436,P<0.05);BALF IL-6、INF-γ、TNF-α、IL-17A、细胞总数和中性粒细胞百分比水平升高(t=7.802、2.331、6.208、7.127、3.709、7.540,P<0.05)。 与TRALI 组相比,IL-10-L 组和IL-10-H 组PaO2、OI 水平升高(P<0.001),PaCO2 水平、肺组织(W/D)、MPO 活性降低(P<0.001);肺组织可见结构轻微破坏,伴有较少出血和炎症反应;外周血Th17 细胞、Th17/Treg 比值下降,Treg 细胞上升(P<0.05);肺组织IL-17A、RORγt mRNA 和蛋白水平下降,Foxp3、GITR、CTLA-4 mRNA 和蛋白水平上升(P<0.05);BALF IL-6、INF-γ、TNF-α、IL-17A、细胞总数和中性粒细胞百分比水平下降(P<0.05)。

结论

IL-10 可以调节Th17/Treg 细胞平衡,缓解小鼠TRALI 具有意义。

Objective

To analyze the effect of interleukin-10(IL-10) on the balance of T helper cell 17 (Th17)/regulatory T cell (Treg) and its effect on mice with transfusion-related acute lung injury (TRALI).

Methods

Sixty mice were divided into a control group,a transfusion-related acute lung injury (TRALI)group,an interleukin-10 low-dose (IL-10-L) group,and an interleukin-10 high-dose (IL-10-H) group,with 15 mice in each group. Calculate the arterial partial pressure of oxygen (PaO2),the partial pressure of carbon dioxide (PaCO2),the oxygenation index (OI),and the wet/dry weight ratio(W/D) of lung tissues. Use the enzyme-linked immunosorbent assay (ELISA) to detect the levels of inflammatory factors in bronchoalveolar lavage fluid (BALF),including interleukin-6 (IL-6),interferon-γ (INF-γ),tumor necrosis factor-α (TNF-α),and interleukin-17A (IL-17A). Detect the total number of cells and the proportion of neutrophils in BALF.Measure the activity of myeloperoxidase (MPO). Use flow cytometry to detect the number of helper T cell 17(Th17) and regulatory T cell (Treg) cells in peripheral blood. Use reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and Western blotting (WB) to detect the mRNA and protein levels of Th17/Treg cell-related markers in lung tissues,including IL-17A,retinoic acid-related orphan receptor γt(RORγt),forkhead box protein P3 (Foxp3),glucocorticoid-induced tumor necrosis factor receptor-related protein (GITR),and cytotoxic T lymphocyte-associated protein 4 (CTLA-4).

Results

Compared with the control group,the levels of PaO2 and OI in the TRALI group decreased (t=5.921,8.216,P<0.001),and the levels of PaCO2,the (W/D) of lung tissues,and the activity of MPO increased (t=10.257,7.843,3.987,P<0.001). Except for the control group,the lung tissues of the other groups were damaged to varying degrees.Red blood cells and inflammatory cells in the alveolar septa and alveolar cavities showed varying degrees of thickening and infiltration. The proportion of Th17 cells in peripheral blood and the Th17/Treg ratio increased(t=9.836,7.125,P<0.05),and the proportion of Treg cells decreased (t=6.254,P<0.05). The mRNA and protein levels of IL-17A and RORγt in lung tissues increased (t=4.850,8.966,6.401,3.248,P<0.05),while the mRNA and protein levels of Foxp3,GITR,and CTLA-4 decreased (t=3.567,10.190,7.632,4.610,8.789,t=2.436,P<0.05). The levels of IL-6,INF-γ,TNF-α,IL-17A,the total number of cells,and the percentage of neutrophils in BALF increased (t=7.802,2.331,6.208,7.127,3.709,7.540,P<0.05).Compared with the TRALI group,the levels of PaO2 and OI in the IL-10-L group and the IL-10-H group increased (P <0.001),and the levels of PaCO2,the (W/D) of lung tissues,and the activity of MPO decreased (P <0.001). Slight structural damage could be seen in the lung tissues,accompanied by less bleeding and inflammatory reactions. The proportion of Th17 cells in peripheral blood and the Th17/Treg ratio decreased,and the proportion of Treg cells increased (P<0.05). The mRNA and protein levels of IL-17A and RORγt in lung tissues decreased,while the mRNA and protein levels of Foxp3,GITR,and CTLA-4 increased(P<0.05). The levels of IL-6,INF-γ,TNF-α,IL-17A,the total number of cells,and the percentage of neutrophils in BALF decreased (P<0.05).

Conclusion

IL-10 modulates the Th17/Treg cell balance,thereby mitigating TRALI in murine models,highlighting its potential as a therapeutic strategy.

图1 IL-10 对小鼠肺损伤的影响。 图A 为每组PaO2 水平比较;图B 为每组PaCO2 水平比较;图C 为每组OI 水平比较;图D为每组肺组织湿干重比比较;图E 为每组MPO 活性比较
图2 小鼠肺组织病理切片(×200,HE 染色)。 图A 为对照组;图B 为TRALI 组;图C 为IL-10-L 组;图D 为IL-10-H 组
图3 流式细胞术检测Th17/Treg 细胞比例
图4 IL-6、INF-γ、TNF-α、IL-17A 相关炎症反应水平比较
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