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Sputum TWEAK expression correlates with severity and degree of control in non-eosinophilic childhood asthma

 Soo Yeon Kim  ;  Jong Deok Kim  ;  In Suk Sol  ;  Min Jung Kim  ;  Mi Na Kim  ;  Jung Yeon Hong  ;  Hye Ran Kim  ;  Yoon Hee Kim  ;  Yong Ju Lee  ;  Kyung Won Kim  ;  Myung Hyun Sohn 
 Pediatric Allergy and Immunology, Vol.29(1) : 42-49, 2018 
Journal Title
 Pediatric Allergy and Immunology 
Issue Date
airway inflammation ; asthma ; children ; tumor necrosis factor-like weak inducer of apoptosis (TWEAK)
BACKGROUND: Tumor necrosis factor-like weak inducer of apoptosis (TWEAK) is known to play a role in the pathogenesis of various inflammatory diseases. However, no study has been performed on childhood asthma. METHODS: Ninety-five children with asthma and 78 controls aged 5-18 years were included. Sputum induction, pulmonary function test (PFT), and methacholine challenge test were performed. The subjects were divided into the eosinophilic airway (EA) and non-EA (NEA) groups based on sputum analysis and into the high and low TWEAK groups according to the TWEAK cutoff level (263.0 pg/mL). TWEAK in induced sputum supernatant was measured through enzyme-linked immunosorbent assay. RESULTS: Children with asthma had higher TWEAK levels than healthy controls (493.0 [157.1-904.3] vs 118.2 (67.5-345.5) pg/mL, P < .001). Sputum TWEAK levels were significantly correlated with PFT parameters reflecting airway obstruction. This association was particularly prominent in subjects with NEA inflammation. Significant differences in FEF25-75 (maximum mid-expiratory flow, % predicted; P = .017), AX (reactance area; P < .001), R5-R20 (difference between resistance at 5 and 20 Hz; P = .025), and X5 (reactance at 5 Hz, % predicted; P < .001) were noted between the high and low TWEAK groups within the NEA group. Sputum TWEAK level also showed significant positive correlations with asthma severity (r = .358, P = .001) and control status (r = .470, P < .001), distinctively in subjects with NEA inflammation. CONCLUSIONS: Airway TWEAK may play a role in small airway inflammation especially in children with non-eosinophilic asthma.
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1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Pediatrics (소아청소년과학교실)
1. Journal Papers (연구논문) > 2. College of Dentistry (치과대학) > Others (기타)
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원)
Yonsei Authors
김경원(Kim, Kyung Won) ORCID logo https://orcid.org/0000-0003-4529-6135
김미나(Kim, Mina) ORCID logo https://orcid.org/0000-0002-1675-0688
김민정(Kim, Min Jung) ORCID logo https://orcid.org/0000-0002-5634-9709
김수연(Kim, Soo Yeon) ORCID logo https://orcid.org/0000-0003-4965-6193
김윤희(Kim, Yoon Hee) ORCID logo https://orcid.org/0000-0002-2149-8501
김종덕(Kim, Jong Deok)
김혜란(Kim, Hye Ran)
설인숙(Sol, In Suk) ORCID logo https://orcid.org/0000-0003-2470-9682
손명현(Sohn, Myung Hyun) ORCID logo https://orcid.org/0000-0002-2478-487X
홍정연(Hong, Jung Yeon) ORCID logo https://orcid.org/0000-0003-0406-9956
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