Krebs von den Lungen-6 and surfactant protein-A in interstitial pneumonia with autoimmune features

Xue, Mingshan1; Cai, Chuanxu2; Zeng, Yifeng1; Xu, Yifan1; Chen, Huai1; Hu, Haisheng1; Zhou, Luqian1; Sun, Baoqing1

2021-01-29

10.1097/MD.0000000000024260

MEDICINE   影响因子和分区

0025-7974

1536-5964

Interstitial pneumonia with autoimmune features (IPAF) is a special subtype of interstitial lung disease that has received worldwide attention. Krebs von den Lungen-6 (KL-6) and surfactant protein-A (SP-A) can be used as an important biomarker of interstitial lung disease, but its exact relationship with IPAF is poorly understood. A total of 65 IPAF patients were included in the study and were followed up for 52 weeks. The KL-6 and SP-A were evaluated by chemiluminescence enzyme immunoassay. The above indicators were tested at 2 time points, baseline (the first admission of patients) and 52 weeks. We also collected the indicators of antinuclear antibodies and rheumatoid factor. Based on high-resolution computed tomography evaluations, patients were divided into: aggravation, stable, and improvement group. At same time, 30 age-matched normal people as normal control were recruited, the same information was collected. Correlations among the groups were compared and analyzed. The KL-6 and SP-A level in IPAF patients were significantly higher than normal controls (fold increase = 11.35 and 1.39, both P < .001) and differed significantly at baseline and 52 weeks in IPAF (difference ratio = 37.7% and 21.3%, P < .05, both). There were significant differences at baseline and 52 weeks (r values of aggravation, improvement, and stable groups for KL-6 were 0.705, 0.770, and 0.344, P = .001, .001, and .163, and for SP-A the r value were 0.672, 0.375, and 0.316, P = .001, .126, and .152). In aggravation group, KL-6 and SP-A were correlated with CT scores (both P < .05). Diffusing capacity of the lung for carbon monoxide (DLCO) and forced vital capacity (FVC), % predicted showed a progressive downward trend, with a significant difference at baseline and 52 weeks in IPAF patients (difference ratio = 23.8% and 20.6%, both P < .05). There was a significant correlation between KL-6 and FVC % predicted and DLCO (both P < .05), SP-A showed negatively correlated with DLCO, but not significantly correlated with FVC % predicted (P < .05 and .47). This study demonstrated that KL-6 and SP-A can reflect disease progression, and both 2 play a key role at reflection of lung epithelial cell injury and fibrosis degree in IPAF.

interstitial pneumonia with autoimmune features Krebs von den Lungen-6 (KL-6) surfactant protein-A (SP-A)

SCI

英语

其他

Chinese National Natural Science Foundation[81700096,8196010329,81871736] ; Bureau of traditional Chinese Medicine Scientific Research Project of Guangdong[20192048] ; Science and Technology Innovation Committee Project of Guangzhou[201804020043] ; Key projects of Guangzhou Education Bureau[201831802] ; Open Project of State Key Laboratory of Respiratory Disease["SKLRD-OP-201803","SKLRD-OP-201809"]

General & Internal Medicine

Medicine, General & Internal

WOS:000612833500063

LIPPINCOTT WILLIAMS & WILKINS

CLINICAL MEDICINE

Web of Science

1.Guangzhou Med Univ, Guangzhou Inst Resp Hlth, Natl Clin Res Ctr Resp Dis,Affiliated Hosp 1, State Key Lab Resp Dis,Dept Allergy & Clin Immuno, Guangzhou 510120, Peoples R China
2.Jinan Univ, Southern Univ Sci & Technol, Shenzhen Peoples Hosp,Shenzhen Inst Resp Dis, Dept Lab Med,Affiliated Hosp 1,Clin Med Coll 2, Shenzhen, Peoples R China

Xue, Mingshan,Cai, Chuanxu,Zeng, Yifeng,et al. Krebs von den Lungen-6 and surfactant protein-A in interstitial pneumonia with autoimmune features[J]. MEDICINE,2021,100(4).

Xue, Mingshan.,Cai, Chuanxu.,Zeng, Yifeng.,Xu, Yifan.,Chen, Huai.,...&Sun, Baoqing.(2021).Krebs von den Lungen-6 and surfactant protein-A in interstitial pneumonia with autoimmune features.MEDICINE,100(4).

Xue, Mingshan,et al."Krebs von den Lungen-6 and surfactant protein-A in interstitial pneumonia with autoimmune features".MEDICINE 100.4(2021).