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中华危重症医学杂志(电子版) ›› 2026, Vol. 19 ›› Issue (02) : 109 -114. doi: 10.3877/cma.j.issn.1674-6880.2026.02.003

论著

外周血PI3K/Akt/mTOR信号通路与特发性肺纤维化患者肺功能及预后的相关性研究
郑新华1, 张翠英2,(), 刘广义1   
  1. 1046000 山西长治,长治市第二人民医院呼吸与危重症医学科
    2046000 山西长治,长治市第二人民医院检验科
  • 收稿日期:2025-11-13 出版日期:2026-04-30
  • 通信作者: 张翠英
  • 基金资助:
    2022年度山西省卫生健康科研课题(2022031)

Relationship between peripheral blood PI3K/Akt/mTOR signaling pathway and pulmonary function and prognosis in patients with idiopathic pulmonary fibrosis

Xinhua Zheng1, Cuiying Zhang2,(), Guangyi Liu1   

  1. 1Department of Respiratory and Critical Care Medicine, the Second People's Hospital of Changzhi, Changzhi 046000, China
    2Department of Laboratory, the Second People's Hospital of Changzhi, Changzhi 046000, China
  • Received:2025-11-13 Published:2026-04-30
  • Corresponding author: Cuiying Zhang
引用本文:

郑新华, 张翠英, 刘广义. 外周血PI3K/Akt/mTOR信号通路与特发性肺纤维化患者肺功能及预后的相关性研究[J/OL]. 中华危重症医学杂志(电子版), 2026, 19(02): 109-114.

Xinhua Zheng, Cuiying Zhang, Guangyi Liu. Relationship between peripheral blood PI3K/Akt/mTOR signaling pathway and pulmonary function and prognosis in patients with idiopathic pulmonary fibrosis[J/OL]. Chinese Journal of Critical Care Medicine(Electronic Edition), 2026, 19(02): 109-114.

目的

探讨外周血磷脂酰肌醇3激酶/蛋白激酶B/哺乳动物雷帕霉素靶蛋白(PI3K/Akt/mTOR)信号通路与特发性肺纤维化(IPF)患者肺功能及预后的关系。

方法

选取180例IPF患者作为研究组,100例体检健康的志愿者作为对照组。检测并对比两组外周血PI3K、Akt、mTOR信使RNA(mRNA)表达水平、肺功能指标[用力肺活量(FVC)、第一秒用力呼气量(FEV1)、FEV1/FVC]。采用Pearson相关性分析探讨IPF患者外周血PI3K/Akt/mTOR信号通路与肺功能参数的相关性。随访1年后,根据IPF患者预后情况分为预后良好组(94例)和预后不良组(86例)。采用多因素logistic回归分析IPF患者预后的影响因素。

结果

研究组外周血PI3K、Akt、mTOR mRNA表达水平均高于对照组,FVC、FEV1、FEV1/FVC均低于对照组(t = 15.263、48.390、45.704、25.249、37.731、43.181,P均< 0.001)。外周血PI3K、Akt、mTOR mRNA表达与FVC、FEV1、FEV1/FVC均呈负相关(P均< 0.05)。与预后良好组相比,预后不良组外周血PI3K、Akt、mTOR mRNA表达水平均更高,年龄更大,FVC、FEV1、FEV1/FVC均更低(P均< 0.001)。年龄升高,外周血PI3K、Akt、mTOR mRNA表达水平升高,FVC、FEV1、FEV1/FVC降低均是IPF患者预后不良的危险因素(P均< 0.05)。

结论

IPF患者外周血PI3K、Akt、mTOR mRNA表达上调,与患者肺功能下降及预后不良密切相关。

Objective

To explore the relationship between the peripheral blood phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/Akt/mTOR) signaling pathway and the pulmonary function and prognosis in patients with idiopathic pulmonary fibrosis (IPF).

Methods

A total of 180 patients with IPF were selected as the study group, and another 100 healthy volunteers who underwent physical examinations were taken as the control group. The expression levels of peripheral blood PI3K, Akt and mTOR messenger RNA (mRNA) and the pulmonary function indicators [forced vital capacity (FVC), forced expiratory volume in one second (FEV1) and FEV1/FVC] of the two groups were detected and compared. Correlation between the PI3K/Akt/mTOR signaling pathway in peripheral blood and the lung function parameters of IPF patients was analyzed by Pearson correlation analysis. After one-year follow-up, the patients with IPF were divided into a good prognosis group (n = 94) and a poor prognosis group (n = 86) based on their prognosis. Multivariate logistic regression was used to analyze the influencing factors for their prognosis.

Results

The expression levels of PI3K, Akt and mTOR mRNA in peripheral blood of the study group were higher than those of the control group, while the FVC, FEV1 and FEV1/FVC in the study group were lower than those in the control group (t = 15.263, 48.390, 45.704, 25.249, 37.731, 43.181; all P < 0.001). The expression of PI3K, Akt and mTOR mRNA in peripheral blood was negatively correlated with FVC, FEV1 and FEV1/FVC (all P < 0.05). Compared with the good prognosis group, patients in the poor prognosis group had higher PI3K, Akt and mTOR mRNA expression in peripheral blood and lower FVC, FEV1 and FEV1/FVC ratios, with older age (all P < 0.001). Advanced age, elevated PI3K, Akt and mTOR mRNA expression in peripheral blood, and decreased FVC, FEV1 and FEV1/FVC were risk factors for poor prognosis in IPF patients (all P < 0.05).

Conclusion

The upregulation of PI3K, Akt and mTOR mRNA expression in peripheral blood of IPF patients is closely associated with impaired lung function and poor prognosis.

表1 研究组IPF患者与健康对照组外周血PI3K、Akt、mTOR mRNA表达水平比较( ± s
表2 研究组IPF患者与健康对照组肺功能指标比较( ± s
表3 研究组IPF患者外周血PI3K/Akt/mTOR信号通路与肺功能参数的相关性分析
表4 单因素分析IPF患者预后不良的影响因素
表5 多因素logistic回归分析IPF患者预后的影响因素
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