NETs、FOXM1、IL-17A与儿童MPP进展为坏死性肺炎的相关性

Correlation of NETs, FOXM1, and IL-17A with the Progression of MPP to Necrotizing Pneumonia in Children

摘要

目的 探讨血清中性粒细胞胞外诱捕网（neutrophil extracellular traps，NETs）、叉头盒蛋白M1（forkhead box protein M1，FOXM1）、白介素-17A（interleukin-17A，IL-17A）与儿童肺炎支原体肺炎（mycoplasma pneumoniae pneumonia，MPP）进展为坏死性肺炎相关性。方法 选取2023年1月至2024年12月秦皇岛市第一医院收治的203例儿童MPP患儿作为建模集，根据是否发生肺坏死分为坏死组（n = 39）、非坏死组（n = 164）。另选2025年1月至2025年3月30例MPP患儿作为外部验证集。比较两组基线资料、血清NETs、FOXM1、IL-17A水平，采用Pearson相关性分析血清NETs、FOXM1、IL-17A之间的相关性，Logistic回归分析MPP坏死性肺炎的相关影响因素；受试者工作特征曲线（receiver operating characteristic curve，ROC）分析常规指标（热程、肺实变、白细胞及联合）与血清NETs、FOXM1、IL-17A及联合预测MPP坏死性肺炎的价值；采用Kappa值分析NETs、FOXM1联合IL-17A预测结果与临床实际的一致性。结果 坏死组热程长于非坏死组，肺实变占比、白细胞高于非坏死组（P ＜ 0.05）；坏死组血清NETs、FOXM1、IL-17A显著高于非坏死组，差异有统计学意义（P ＜ 0.05）；Pearson相关性分析显示，NETs与FOXM1、IL-17A呈正相关（r = 0.194、0.216，P = 0.006、0.002），FOXM1与IL-17A呈正相关（r = 0.203，P = 0.004）；Logistic回归分析结果显示，校正了热程、肺实变、白细胞后，血清NETs、FOXM1、IL-17A仍是MPP坏死性肺炎的相关影响因素（P ＜ 0.05）；常规指标：热程、肺实变、白细胞及联合预测MPP坏死性肺炎的AUC值介于0.648～0.854（P ＜ 0.05）；血清指标：NETs、FOXM1、IL-17A及联合预测MPP坏死性肺炎的AUC值介于0.749～0.941（P ＜ 0.05），其中常规指标联合的AUC显著大于单独的热程、肺实变、白细胞（P ＜ 0.05），NETs、FOXM1联合IL-17A的AUC显著大于三者单独的AUC（P ＜ 0.05），NETs、FOXM1联合IL-17A的AUC显著大于常规指标联合的AUC（P ＜ 0.05）。结论 血清NETs、FOXM1、IL-17A与儿童MPP进展为坏死性肺炎有关，联合检测三者能提高对坏死性肺炎的预测效能。

Abstract

Objective To investigate the correlation of serum neutrophil extracellular traps (NETs), forkhead box protein M1 (FOXM1), and interleukin-17A (IL-17A) with the progression of mycoplasma pneumoniae pneumonia (MPP) to necrotizing pneumonia in children. Methods A total of 203 pediatric patients with MPP admitted to the First Hospital of Qinhuangdao from January 2023 to December 2024 were selected as the modeling set, and they were divided into a necrotizing group (n = 39) and a non-necrosis group (n = 164) based on the presence or absence of pulmonary necrosis. Another 30 children with MPP from January 2025 to March 2025 were selected as an external validation set. Baseline data, serum levels of NETs, FOXM1, and IL-17A were compared between the two groups. Pearson correlation analysis was used to assess correlations among serum NETs, FOXM1 and IL-17A. Logistic regression analysis was used to investigate the relevant influencing factors of MPP necrotic pneumonia. Receiver Operating Characteristic (ROC) curve analysis was conducted to evaluate the predictive value of conventional indicators (duration of fever, pulmonary consolidation, white blood cell count, and their combination) and serum NETs, FOXM1, IL-17A, and their combination in predicting necrotizing pneumonia in MPP. The consistency between the predictions made by the combination of NETs, FOXM1, and IL-17A and clinical outcomes was analyzed using the Kappa analysis. Results The necrotizing group had a longer duration of fever, a higher proportion of lung consolidation, and higher white blood cell counts than the non-necrosis group (P ＜ 0.05). Serum levels of NETs, FOXM1, and IL-17A were significantly higher in the necrotizing group than in the non-necrotizing group (P ＜ 0.05). Pearson correlation analysis showed that NETs were positively correlated with FOXM1 and IL-17A (r = 0.194, 0.216, P = 0.006, 0.002), and FOXM1 was positively correlated with IL-17A (r = 0.203, P = 0.004). Logistic regression analysis showed that after adjusting for duration of fever, lung consolidation, and white blood cell counts, serum NETs, FOXM1, and IL-17A remained independent factors associated with necrotizing pneumonia in MPP (P ＜ 0.05). For conventional indicators, the AUC values for duration of fever, lung consolidation, white blood cell counts, and their combination in predicting necrotizing pneumonia ranged from 0.648 to 0.854 (P ＜ 0.05). For serum indicators, the AUC values for NETs, FOXM1, IL-17A and their combination ranged from 0.749 to 0.941 (P ＜ 0.05). The AUC of the combination of conventional indicators was significantly higher than that of fever duration, lung consolidation, and white blood cell counts alone (P ＜ 0.05). The AUC for the combination of NETs, FOXM1, and IL-17A was significantly higher than that for any single serum indicator (P ＜ 0.05), and significantly higher than that for the combination of conventional indicators (P ＜ 0.05). Conclusion Serum NETs, FOXM1, and IL-17A are associated with the progression of MPP to necrotizing pneumonia in children. The combined detection of these three biomarkers can improve the predictive efficacy for necrotizing pneumonia.

关键词

中性粒细胞胞外诱捕网 / 叉头盒蛋白M1 / 白介素-17A / 儿童肺炎支原体肺炎 / 坏死性肺炎 / 预测效能

Key words

Neutrophil extracellular traps / Forkhead box protein M1 / Interleukin-17A / Mycoplasmal pneumoniae pneumonia in children / Necrotizing pneumonia / Predictive efficacy

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基金资助

秦皇岛市科学技术研究与发展计划(202301A052)