Abstract:
Objective
To investigate the expression of tumor necrosis factor-like cell weak apoptosis factor (TWEAK) in induced sputum and its association with asthma severity.
Methods
A total of 50 asthma patients were recruited from March 2022 to September 2022,and induced TWEAK in sputum were determined using enzyme-linked immunosorbent assay. According to the TWEAK value,asthma patients were divided into TWEAK high expression group (≥0.70 ng/ml) and TWEAK low expression group (<0.70 ng/ml),with 25 cases in each group. Spearman was used to analyze the correlation between TWEAK and lung function indexes,inflammation markers and M1 macrophages.
Results
The interferon (IFN)-γ in the TWEAK high expression group were significantly lower than those in the low expression group (P <0.05),and the percentages of interleukin (IL)-17A,CD45+/CD68+ macrophages%,M1 type (CD11c+/CD86+) macrophages % in the TWEAK high expression group were significantly higher than those in the low expression group (P<0.05).According to Spearman analysis,induced sputum TWEAK was significantly negatively correlated with the percentage of forced expiratory volume (FEV1) in 1 second (rs=-0.476),FEV1/forced vital capacity (rs=-0.394),and induced sputum IFN-γ (rs=-0.346)(P<0.05). The induced sputum TWEAK was significantly positively correlated with tumor cell necrosis factor-α (rs=0.315),IL-6 (rs=0.286),IL-17A (rs=0.320),M1 type (CD11c+/CD86+) macrophage % (rs =0.470),neutrophil % (rs =0.293) and peripheral blood neutrophil % (rs=0.351)(P<0.05). The expression of induced sputum TWEAK in patients with a family history of allergies was significantly lower than that in patients without a family history of allergies(P<0.05).
Conclusion
There was a significant correlation between induced sputum TWEAK overexpression and inflammation progression and disease flare-up in asthma patients,and induced TWEAK in sputum may be a marker of asthma severity.
Key words:
Tumor necrosis factor-like cell weak apoptotic factor,
Bronchial asthma,
Induce sputum,
Asthma severity,
Inflammatory cytokines
Yidan Guo, Jun Wang, Xiang Zhu, Ze Ji, Beijuan Wang. Association discussion of TWEAK expression in induced sputum and asthma severity[J]. Chinese Journal of Lung Diseases(Electronic Edition), 2025, 18(03): 375-379.