Annexin A1 is elevated in patients with COPD and affects lung fibroblast function
Tianwen Lai,1,* Yanyu Li,1,* Zongjiong Mai,2 Xiaoxia Wen,1 Yingying Lv,1 Zhanqing Xie,3 Quanchao Lv,1 Min Chen,1 Dong Wu,1 Bin Wu1 1Department of Respiratory and Critical Care Medicine, 2Department of Oncology, 3Department of Thoracic Surgery, The Affiliated Hospital of Guangdong Medical University...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Dove Medical Press
2018-02-01
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| Series: | International Journal of COPD |
| Subjects: | |
| Online Access: | https://www.dovepress.com/annexin-a1-is-elevated-in-patients-with-copd-and-affects-lung-fibrobla-peer-reviewed-article-COPD |
| _version_ | 1819163591769587712 |
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| author | Lai TW Li YY Mai ZJ Wen XX Lv YY Xie ZQ Lv QC Chen M Wu D Wu B |
| author_facet | Lai TW Li YY Mai ZJ Wen XX Lv YY Xie ZQ Lv QC Chen M Wu D Wu B |
| author_sort | Lai TW |
| collection | DOAJ |
| description | Tianwen Lai,1,* Yanyu Li,1,* Zongjiong Mai,2 Xiaoxia Wen,1 Yingying Lv,1 Zhanqing Xie,3 Quanchao Lv,1 Min Chen,1 Dong Wu,1 Bin Wu1 1Department of Respiratory and Critical Care Medicine, 2Department of Oncology, 3Department of Thoracic Surgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, People’s Republic of China *These authors contributed equally to this work Purpose: Fibrosis in peripheral airways is responsible for airflow limitation in chronic obstructive pulmonary disease (COPD). Annexin A1 modulates several key biological events during inflammation. However, little is known about its role in airway fibrosis in COPD. We investigated whether levels of Annexin A1 were upregulated in patients with COPD, and whether it promoted airway fibrosis.Methods: We quantified serum Annexin A1 levels in never-smokers (n=12), smokers without COPD (n=11), and smokers with COPD (n=22). Correlations between Annexin A1 expression and clinical indicators (eg, lung function) were assessed. In vitro, human bronchial epithelial (HBE) cells were exposed to cigarette smoke extract (CSE) and Annexin A1 expression was assessed. Primary human lung fibroblasts were isolated from patients with COPD and effects of Annexin A1 on fibrotic deposition of lung fibroblasts were evaluated.Results: Serum Annexin A1 was significantly higher in patients with Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines stage III or IV than in those with GOLD stages I or II (12.8±0.8 ng/mL versus 9.8±0.7 ng/mL; p=0.016). Annexin A1 expression was negatively associated with airflow obstruction (forced expiratory volume in one second % predicted; r=−0.72, p<0.001). In vitro, Annexin A1 was significantly increased in CSE-exposed HBE cells in a time- and concentration-dependent manner. Annexin A1 promoted lung fibroblasts proliferation, migration, differentiation, and collagen deposition via the ERK1/2 and p38 mitogen-activated protein kinase pathways.Conclusion: Annexin A1 expression is upregulated in patients with COPD and affects lung fibroblast function. However, more studies are needed to clarify the role of Annexin A1 in airway fibrosis of COPD. Keywords: COPD, Annexin A1, tissue fibrosis, disease severity |
| first_indexed | 2024-12-22T17:46:34Z |
| format | Article |
| id | doaj.art-13b868eaf4c74b96a1c47a140042eeb6 |
| institution | Directory Open Access Journal |
| issn | 1178-2005 |
| language | English |
| last_indexed | 2024-12-22T17:46:34Z |
| publishDate | 2018-02-01 |
| publisher | Dove Medical Press |
| record_format | Article |
| series | International Journal of COPD |
| spelling | doaj.art-13b868eaf4c74b96a1c47a140042eeb62022-12-21T18:18:16ZengDove Medical PressInternational Journal of COPD1178-20052018-02-01Volume 1347348636663Annexin A1 is elevated in patients with COPD and affects lung fibroblast functionLai TWLi YYMai ZJWen XXLv YYXie ZQLv QCChen MWu DWu BTianwen Lai,1,* Yanyu Li,1,* Zongjiong Mai,2 Xiaoxia Wen,1 Yingying Lv,1 Zhanqing Xie,3 Quanchao Lv,1 Min Chen,1 Dong Wu,1 Bin Wu1 1Department of Respiratory and Critical Care Medicine, 2Department of Oncology, 3Department of Thoracic Surgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, People’s Republic of China *These authors contributed equally to this work Purpose: Fibrosis in peripheral airways is responsible for airflow limitation in chronic obstructive pulmonary disease (COPD). Annexin A1 modulates several key biological events during inflammation. However, little is known about its role in airway fibrosis in COPD. We investigated whether levels of Annexin A1 were upregulated in patients with COPD, and whether it promoted airway fibrosis.Methods: We quantified serum Annexin A1 levels in never-smokers (n=12), smokers without COPD (n=11), and smokers with COPD (n=22). Correlations between Annexin A1 expression and clinical indicators (eg, lung function) were assessed. In vitro, human bronchial epithelial (HBE) cells were exposed to cigarette smoke extract (CSE) and Annexin A1 expression was assessed. Primary human lung fibroblasts were isolated from patients with COPD and effects of Annexin A1 on fibrotic deposition of lung fibroblasts were evaluated.Results: Serum Annexin A1 was significantly higher in patients with Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines stage III or IV than in those with GOLD stages I or II (12.8±0.8 ng/mL versus 9.8±0.7 ng/mL; p=0.016). Annexin A1 expression was negatively associated with airflow obstruction (forced expiratory volume in one second % predicted; r=−0.72, p<0.001). In vitro, Annexin A1 was significantly increased in CSE-exposed HBE cells in a time- and concentration-dependent manner. Annexin A1 promoted lung fibroblasts proliferation, migration, differentiation, and collagen deposition via the ERK1/2 and p38 mitogen-activated protein kinase pathways.Conclusion: Annexin A1 expression is upregulated in patients with COPD and affects lung fibroblast function. However, more studies are needed to clarify the role of Annexin A1 in airway fibrosis of COPD. Keywords: COPD, Annexin A1, tissue fibrosis, disease severityhttps://www.dovepress.com/annexin-a1-is-elevated-in-patients-with-copd-and-affects-lung-fibrobla-peer-reviewed-article-COPDCOPDAnnexin A1Tissue fibrosisDisease severity |
| spellingShingle | Lai TW Li YY Mai ZJ Wen XX Lv YY Xie ZQ Lv QC Chen M Wu D Wu B Annexin A1 is elevated in patients with COPD and affects lung fibroblast function International Journal of COPD COPD Annexin A1 Tissue fibrosis Disease severity |
| title | Annexin A1 is elevated in patients with COPD and affects lung fibroblast function |
| title_full | Annexin A1 is elevated in patients with COPD and affects lung fibroblast function |
| title_fullStr | Annexin A1 is elevated in patients with COPD and affects lung fibroblast function |
| title_full_unstemmed | Annexin A1 is elevated in patients with COPD and affects lung fibroblast function |
| title_short | Annexin A1 is elevated in patients with COPD and affects lung fibroblast function |
| title_sort | annexin a1 is elevated in patients with copd and affects lung fibroblast function |
| topic | COPD Annexin A1 Tissue fibrosis Disease severity |
| url | https://www.dovepress.com/annexin-a1-is-elevated-in-patients-with-copd-and-affects-lung-fibrobla-peer-reviewed-article-COPD |
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