PMID- 29443743 OWN - NLM STAT- MEDLINE DCOM- 20180222 LR - 20221005 IS - 1536-5964 (Electronic) IS - 0025-7974 (Print) IS - 0025-7974 (Linking) VI - 97 IP - 7 DP - 2018 Feb TI - Circulating miR-146a/b correlates with inflammatory cytokines in COPD and could predict the risk of acute exacerbation COPD. PG - e9820 LID - 10.1097/MD.0000000000009820 [doi] LID - e9820 AB - The aim of this study was to investigate the predicting value of miR-146a/b for acute exacerbation chronic obstructive pulmonary disease (AECOPD) and COPD, and to explore their associations with inflammatory cytokines in AECOPD and stable COPD patients.One hundred six AECOPD, 122 stable COPD patients, and 110 health volunteers with age and sex matched to total COPD patients (AECOPD and stable COPD) were enrolled. Blood samples were collected from all participants. Relative expression of miR-146a/b was determined by real-time polymerase chain reaction. Tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta (IL-1beta), interleukin-6 (IL-6), interleukin-8 (IL-8), leukotriene B4 (LTB-4) expression in serum from AECOPD and stable COPD patients were assessed using commercial ELISA kit.Serum levels of miR-146a and miR-146b were down regulated in AECOPD patients compared with stable COPD patients and HCs. miR-146a and miR-146b are of good values for predicting the risk of AECOPD in HCs with AUC of 0.702 and 0.715. Additionally, miR-146a and miR-146b could distinguish AECOPD from stable COPD patients with AUC of 0.670 and 0.643. In AECOPD patients, levels of miR-146a in AECOPD patients were negatively associated with TNF-alpha, IL-6, IL-8, and LTE-4 expression. In stable COPD patients, miR-146a expressions were negatively correlated with TNF-alpha, IL-1beta, IL-6, IL-8, and LTE-4 levels. And, the expressions of miR-146b in AECOPD patients were negatively associated with IL-1beta and LTB-4 expression. While in stable COPD patients, miR-146b expressions were only negatively correlated with TNF-alpha level.In conclusion, miR-146a and miR-146b were negatively correlated with inflammatory cytokines, and could be promising biomarkers for predicting the risk of AECOPD in stable COPD patients and healthy individuals. FAU - Chen, Bei-Bei AU - Chen BB AD - Department of Respiratory, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. FAU - Li, Zhen-Hua AU - Li ZH FAU - Gao, Shan AU - Gao S LA - eng PT - Journal Article PL - United States TA - Medicine (Baltimore) JT - Medicine JID - 2985248R RN - 0 (Biomarkers) RN - 0 (CXCL8 protein, human) RN - 0 (Cytokines) RN - 0 (IL6 protein, human) RN - 0 (Interleukin-1beta) RN - 0 (Interleukin-6) RN - 0 (Interleukin-8) RN - 0 (MIRN146 microRNA, human) RN - 0 (MicroRNAs) RN - 0 (Tumor Necrosis Factor-alpha) RN - 1HGW4DR56D (Leukotriene B4) SB - IM MH - Acute Disease MH - Aged MH - Biomarkers/blood MH - Case-Control Studies MH - Cytokines/*blood MH - *Disease Progression MH - Down-Regulation MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Humans MH - Interleukin-1beta/blood MH - Interleukin-6/blood MH - Interleukin-8/blood MH - Leukotriene B4/blood MH - Male MH - MicroRNAs/*blood MH - Middle Aged MH - Pulmonary Disease, Chronic Obstructive/*blood MH - Real-Time Polymerase Chain Reaction MH - Risk Factors MH - Tumor Necrosis Factor-alpha/blood PMC - PMC5839872 COIS- Conflicts of Interest: The authors have no conflicts of interest to disclose. EDAT- 2018/02/15 06:00 MHDA- 2018/02/23 06:00 PMCR- 2018/02/16 CRDT- 2018/02/15 06:00 PHST- 2018/02/15 06:00 [entrez] PHST- 2018/02/15 06:00 [pubmed] PHST- 2018/02/23 06:00 [medline] PHST- 2018/02/16 00:00 [pmc-release] AID - 00005792-201802160-00017 [pii] AID - MD-D-17-02963 [pii] AID - 10.1097/MD.0000000000009820 [doi] PST - ppublish SO - Medicine (Baltimore). 2018 Feb;97(7):e9820. doi: 10.1097/MD.0000000000009820.