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1.重庆医科大学附属第一医院重症医学科,重庆 400016
2.重庆医科大学附属妇女儿童医院重症医学科,重庆 401147
王远扬,Email:wwwyyang@outlook.com,研究方向:急性呼吸窘迫综合征的肺脏区域炎症损伤机制及免疫调控。
祁海峰,Email:langren609@163.com。
收稿:2024-11-05,
修回:2024-11-22,
录用:2024-11-25,
纸质出版:2024-12-28
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王远扬,徐昉,祁海峰.IL-27通过JAK2/STAT1通路促进Th1细胞分化加重急性肺损伤[J].重庆医科大学学报,2024,49(12):1572-1576.
Wang Yuanyang,Xu Fang,Qi Haifeng.Interleukin-27 exacerbates acute lung injury by promoting T helper type 1 differentiation via the JAK2/STAT1 pathway[J].Journal of Chongqing Medical University,2024,49(12):1572-1576.
王远扬,徐昉,祁海峰.IL-27通过JAK2/STAT1通路促进Th1细胞分化加重急性肺损伤[J].重庆医科大学学报,2024,49(12):1572-1576. DOI: 10.13406/j.cnki.cyxb.003682.
Wang Yuanyang,Xu Fang,Qi Haifeng.Interleukin-27 exacerbates acute lung injury by promoting T helper type 1 differentiation via the JAK2/STAT1 pathway[J].Journal of Chongqing Medical University,2024,49(12):1572-1576. DOI: 10.13406/j.cnki.cyxb.003682.
目的
2
研究白细胞介素27(interleukin-27,IL-27)对辅助性T细胞1(helper T cell 1,Th1)分化及急性肺损伤的影响与作用机制。
方法
2
通过盲肠结扎穿刺(cecal ligation and puncture,CLP)构建脓毒症急性肺损伤小鼠模型,苏木精-伊红(hematoxylin-eosin staining,HE)染色评估肺组织病理损伤。采用Western Blot、RT-qPCR检测JAK/STAT通路表达与激活以及T盒转录因子21(T-box transcription factor 21,T-bet)蛋白的表达。
结果
2
IL-27加重脓毒症小鼠肺损伤。细胞实验表明IL-27显著激活JAK2/STAT1通路磷酸化,上调T-bet蛋白(
P
<
0.01)和mRNA水平(
P
<
0.05)。抑制STAT1磷酸化后,T-bet表达显著下调(
P
<
0.01)。
结论
2
IL-27通过JAK2/STAT1通路促进Th1分化,加重脓毒症小鼠急性肺损伤。
Objective
2
To investigate the effect and mechanism of interleukin-27(IL-27) on the differentiation of T helper type 1 (Th1) cells and acute lung injury.
Methods
2
The method of cecal ligation and puncture was used to establish a mouse model of sepsis with acute lung injury,and hematoxylin-eosin staining was used to assess the histopathological damage of the lungs. Western blot and RT-qPCR were used to measure the expression and activation of the JAK/STAT pathway and the protein and mRNA expression levels of T-box transcription factor 21(T-bet).
Results
2
IL-27 exacerbated lung injury in mice with sepsis. Cell experiments showed that IL-27 significantly activated the phosphorylation of the JAK2/STAT1 pathway and upregulated the protein and mRNA expression levels of T-bet(
P
<
0.01,
P
<
0.05). The expression of T-bet was significantly downregulated after inhibition of STAT1 phosphorylation(
P
<
0.01).
Conclusion
2
IL-27 promotes Th1 differentiation via the JAK2/STAT1 pathway,thereby exacerbating acute lung injury in mice with sepsis.
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