1
|
An L, Lin Y, Yang T, Hua L. Exploring the interaction among EPHX1, GSTP1, SERPINE2, and TGFB1 contributing to the quantitative traits of chronic obstructive pulmonary disease in Chinese Han population. Hum Genomics 2016; 10:13. [PMID: 27193053 PMCID: PMC4870730 DOI: 10.1186/s40246-016-0076-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/10/2016] [Indexed: 12/17/2022] Open
Abstract
Background Currently, the majority of genetic association studies on chronic obstructive pulmonary disease (COPD) risk focused on identifying the individual effects of single nucleotide polymorphisms (SNPs) as well as their interaction effects on the disease. However, conventional genetic studies often use binary disease status as the primary phenotype, but for COPD, many quantitative traits have the potential correlation with the disease status and closely reflect pathological changes. Method Here, we genotyped 44 SNPs from four genes (EPHX1, GSTP1, SERPINE2, and TGFB1) in 310 patients and 203 controls which belonged to the Chinese Han population to test the two-way and three-way genetic interactions with COPD-related quantitative traits using recently developed generalized multifactor dimensionality reduction (GMDR) and quantitative multifactor dimensionality reduction (QMDR) algorithms. Results Based on the 310 patients and the whole samples of 513 subjects, the best gene-gene interactions models were detected for four lung-function-related quantitative traits. For the forced expiratory volume in 1 s (FEV1), the best interaction was seen from EPHX1, SERPINE2, and GSTP1. For FEV1%pre, the forced vital capacity (FVC), and FEV1/FVC, the best interactions were seen from SERPINE2 and TGFB1. Conclusion The results of this study provide further evidence for the genotype combinations at risk of developing COPD in Chinese Han population and improve the understanding on the genetic etiology of COPD and COPD-related quantitative traits. Electronic supplementary material The online version of this article (doi:10.1186/s40246-016-0076-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Li An
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Yingxiang Lin
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Ting Yang
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Lin Hua
- School of Biomedical Engineering, Capital Medical University, Beijing, 100069, China. .,Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, School of Biomedical Engineering, Capital Medical University, Beijing, 100069, China.
| |
Collapse
|
2
|
Hua L, An L, Li L, Zhang Y, Wang C. A bioinformatics strategy for detecting the complexity of Chronic Obstructive Pulmonary Disease in Northern Chinese Han Population. Genes Genet Syst 2016; 87:197-209. [PMID: 22976395 DOI: 10.1266/ggs.87.197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Chronic Obstructive Pulmonary Disease (COPD) is a complex human disease which is driven not only by genetic factors, but also by various environmental variables, such as gender, age and smoking. Therefore, there is a demand for investigating the complexity among various risk factors involved in COPD. In this study, 44 tagging SNPs from EPHX1, GSTP1, SERPINE2 and TGFB1 were selected and genotyped in 310 COPD cases and 203 controls, all of which belong to the Han from North China. We integrated functional prediction algorithms of nonsynonymous SNPs (nsSNPs) into Bayesian network to explore the complex regulatory relationships among disease traits and various risk factors. The results showed that three basic variables (age, sex and smoking) were risk factors of COPD-related trait and phenotype. Besides these environmental risk factors, deleterious nsSNPs were found to perform better than those of significant synonymous SNPs when used as variables to make risk prediction of disease outcome. This study provides further evidences for detecting the complexity of COPD in Northern Chinese Han Population.
Collapse
Affiliation(s)
- Lin Hua
- Biomedical Engineering Institute of Capital Medical University, Beijing, China.
| | | | | | | | | |
Collapse
|
3
|
Solleti SK, Srisuma S, Bhattacharya S, Rangel-Moreno J, Bijli KM, Randall TD, Rahman A, Mariani TJ. Serpine2 deficiency results in lung lymphocyte accumulation and bronchus-associated lymphoid tissue formation. FASEB J 2016; 30:2615-26. [PMID: 27059719 DOI: 10.1096/fj.201500159r] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/28/2016] [Indexed: 11/11/2022]
Abstract
Serine proteinase inhibitor, clade E, member 2 (SERPINE2), is a cell- and extracellular matrix-associated inhibitor of thrombin. Although SERPINE2 is a candidate susceptibility gene for chronic obstructive pulmonary disease, the physiologic role of this protease inhibitor in lung development and homeostasis is unknown. We observed spontaneous monocytic-cell infiltration in the lungs of Serpine2-deficient (SE2(-/-)) mice, beginning at or before the time of lung maturity, which resulted in lesions that resembled bronchus-associated lymphoid tissue (BALT). The initiation of lymphocyte accumulation in the lungs of SE2(-/-) mice involved the excessive expression of chemokines, cytokines, and adhesion molecules that are essential for BALT induction, organization, and maintenance. BALT-like lesion formation in the lungs of SE2(-/-) mice was also associated with a significant increase in the activation of thrombin, a recognized target of SE2, and excess stimulation of NF-κB, a major regulator of chemokine expression and inflammation. Finally, systemic delivery of thrombin rapidly stimulated lung chemokine expression in vivo These data uncover a novel mechanism whereby loss of serine protease inhibition leads to lung lymphocyte accumulation.-Solleti, S. K., Srisuma, S., Bhattacharya, S., Rangel-Moreno, J., Bijli, K. M., Randall, T. D., Rahman, A., Mariani, T. J. Serpine2 deficiency results in lung lymphocyte accumulation and bronchus-associated lymphoid tissue formation.
Collapse
Affiliation(s)
- Siva Kumar Solleti
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, USA
| | - Sorachai Srisuma
- Department of Physiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Soumyaroop Bhattacharya
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, USA
| | - Javier Rangel-Moreno
- Division of Allergy, Immunology, and Rheumatology, University of Rochester Medical Center, Rochester, New York, USA
| | - Kaiser M Bijli
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, USA; Division of Pulmonary, Allergy, and Critical Care Medicine, Emory University/Atlanta Veterans Affairs Medical Center, Atlanta, Georgia, USA
| | - Troy D Randall
- Division of Allergy, Immunology, and Rheumatology, University of Rochester Medical Center, Rochester, New York, USA; Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Arshad Rahman
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, USA
| | - Thomas J Mariani
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, USA;
| |
Collapse
|
4
|
Crotty Alexander LE, Shin S, Hwang JH. Inflammatory Diseases of the Lung Induced by Conventional Cigarette Smoke: A Review. Chest 2016; 148:1307-1322. [PMID: 26135024 DOI: 10.1378/chest.15-0409] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Smoking-induced lung diseases were extremely rare prior to the 20th century. With commercialization and introduction of machine-made cigarettes, worldwide use skyrocketed and several new pulmonary diseases have been recognized. The majority of pulmonary diseases caused by cigarette smoke (CS) are inflammatory in origin. Airway epithelial cells and alveolar macrophages have altered inflammatory signaling in response to CS, which leads to recruitment of lymphocytes, eosinophils, neutrophils, and mast cells to the lungs-depending on the signaling pathway (nuclear factor-κB, adenosine monophosphate-activated protein kinase, c-Jun N-terminal kinase, p38, and signal transducer and activator of transcription 3) activated. Multiple proteins are upregulated and secreted in response to CS exposure, and many of these have immunomodulatory activities that contribute to disease pathogenesis. In particular, metalloproteases 9 and 12, surfactant protein D, antimicrobial peptides (LL-37 and human β defensin 2), and IL-1, IL-6, IL-8, and IL-17 have been found in higher quantities in the lungs of smokers with ongoing inflammation. However, many underlying mechanisms of smoking-induced inflammatory diseases are not yet known. We review here the known cellular and molecular mechanisms of CS-induced diseases, including COPD, respiratory bronchiolitis-interstitial lung disease, desquamative interstitial pneumonia, acute eosinophilic pneumonia, chronic rhinosinusitis, pulmonary Langerhans cell histiocytosis, and chronic bacterial infections. We also discuss inflammation induced by secondhand and thirdhand smoke exposure and the pulmonary diseases that result. New targeted antiinflammatory therapeutic options are currently under investigation and hopefully will yield promising results for the treatment of these highly prevalent smoking-induced diseases.
Collapse
Affiliation(s)
- Laura E Crotty Alexander
- Veterans Affairs San Diego Healthcare System; and University of California, San Diego, La Jolla, CA..
| | - Stephanie Shin
- Veterans Affairs San Diego Healthcare System; and University of California, San Diego, La Jolla, CA
| | - John H Hwang
- Veterans Affairs San Diego Healthcare System; and University of California, San Diego, La Jolla, CA
| |
Collapse
|
5
|
Issues in pulmonary function testing for the screening and diagnosis of chronic obstructive pulmonary disease. Curr Opin Pulm Med 2012; 18:104-11. [PMID: 22262139 DOI: 10.1097/mcp.0b013e32834feae7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW The purpose of this review article is to provide an up-to-date summary on the current evidence for or against the use of lung function tests as screening and diagnostic tools for airflow obstruction in chronic obstructive pulmonary disease (COPD), and to consider the relevant issues in context. RECENT FINDINGS COPD is characterized by chronic respiratory symptoms and airflow limitation with only partial reversibility on lung function testing. However, screening on a population basis or of an enriched 'at-risk' subset like chronic smokers is not supported by findings from previous epidemiological studies, screening trials or in currently published clinical management guidelines by professional societies and review bodies. The definition of airflow obstruction and the classification of disease severity of COPD also differ slightly between guidelines and statements from different professional societies. SUMMARY Given the experience from previous screening trials and controversial classification of airflow obstruction by severity, it is impossible to have accurate screening results for COPD based on lung function tests alone. Clinical respiratory symptoms should be taken into consideration in terms of the diagnosis and management of COPD, as well as in any screening trial or programme that is to be attempted or implemented.
Collapse
|