检验医学 ›› 2025, Vol. 40 ›› Issue (3): 283-286.DOI: 10.3969/j.issn.1673-8640.2025.03.014

• 论著 • 上一篇    下一篇

中性粒细胞性哮喘患者上呼吸道细菌种类和Th17/Treg细胞因子水平变化

张小裔, 屈肖杰, 牛莎   

  1. 焦作市第二人民医院呼吸与危重症医学科,河南 焦作 454000
  • 收稿日期:2023-10-25 修回日期:2024-05-09 出版日期:2025-03-30 发布日期:2025-04-10
  • 作者简介:张小裔,男,1981年生,学士,副主任医师,主要从事肺部感染和肿瘤研究。

Upper respiratory tract bacterial species and Th17/Treg cytokine level changes in patients with neutrophilic asthma

ZHANG Xiaoyi, QU Xiaojie, NIU Sha   

  1. Department of Respiratory and Critical Care Medicine,the Second People's Hospital of Jiaozuo City,Jiaozuo 454000,Henan,China
  • Received:2023-10-25 Revised:2024-05-09 Online:2025-03-30 Published:2025-04-10

摘要:

目的 分析中性粒细胞性哮喘患者上呼吸道细菌种类和辅助性T细胞17(Th17)/调节性T细胞(Treg)细胞因子水平变化。方法 选取2020年5月—2023年5月焦作市第二人民医院106例中性粒细胞性哮喘患者(研究组)和健康体检者106名(对照组)。检测2 组上呼吸道细菌种类;采用流式细胞术检测T淋巴细胞群和Th17/Treg细胞;采用酶联免疫吸附试验(ELISA)检测白细胞介素(IL)-6、IL-10和IL-17水平;采用速率散射比浊法检测免疫球蛋白(Ig)。结果 研究组共分离出169株细菌,其中奈瑟菌检出率最高,其次为肺炎链球菌、表皮葡萄球菌和甲型链球菌;对照组共分离出56株细菌,其中甲型链球菌检出率最高,其次为表皮链球菌和奈瑟菌。研究组CD4+T细胞百分比和CD4+/CD8+比值低于对照组,Th17百分比、Treg百分比、Th17/Treg比值和IL-6、IL-10、IL-17水平高于对照组(P<0.05)。研究组和对照组IgG、IgA和IgM水平差异均无统计学意义(P>0.05)。结论 中性粒细胞性哮喘患者上呼吸道菌群失调,主要以奈瑟菌为主;Th17/Treg细胞因子水平异常升高。

关键词: 细菌, 辅助性T细胞17, 调节性T细胞, 中性粒细胞性哮喘, 上呼吸道

Abstract:

Objective To investigate the upper respiratory tract bacterial species and T helper cell 17(Th17)/regulatory T cell(Treg)cytokine level changes in patients with neutrophilic asthma. Methods A total of 106 patients with neutrophilic asthma admitted to the Second People's Hospital of Jiaozuo City from May 2020 to May 2023 were enrolled as research group,and 106 healthy subjects were enrolled as control group. The subjects in the both groups were determined for upper respiratory tract bacterial species. Flow cytometry was used to determine T lymphocyte populations and Th17/Treg. Enzyme-linked immunosorbent assay (ELISA) was used to determine the levels of interleukin(IL)-6,IL-10 and IL-17. The rate scattering turbidimetry method was applied to determine immunoglobulins(Ig). Results Totally,169 isolates of bacteria were isolated from research group,of which Neisseria had the highest determination rate,followed by Streptococcus pneumoniae,Staphylococcus epidermidis and Streptococcus A. A total of 56 isolates of bacteria were isolated from control group,with the highest determination rate being Streptococcus A,followed by Streptococcus epidermidis and Neisseria. The CD4+T cell percentage and CD4+/CD8+ ratio in research group were lower than those in control group (P<0.05). The Th17 percentage,Treg percentage,Th17/Treg ratio,IL-6,IL-10 and IL-17 levels in research group were higher than those in control group (P<0.05). There was no statistical significance in the levels of IgG,IgA and IgM between research and control groups (P>0.05). Conclusions The upper respiratory tract bacteria in patients with neutrophilic asthma is dysregulated,mainly Neisseria,and the levels of Th17/Treg are abnormally elevated.

Key words: Bacterium, T helper cell 17, Regulatory T cell, Neutrophilic asthma, Upper respiratory tract

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