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Kang YF, Liu JX, Xu K, Li XL, Lu X. sPLA2GIB Promotes PGD2 and IL-13 Production in Eosinophilic Chronic Rhinosinusitis with Nasal Polyps. Laryngoscope 2024; 134:1107-1117. [PMID: 37594194 DOI: 10.1002/lary.30977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/19/2023]
Abstract
OBJECTIVE Secreted phospholipase A2 Group IB (sPLA2GIB) regulates the release of arachidonic acid, prostaglandins, and other inflammatory lipid mediators. Although it has been well involved in extensive inflammatory diseases, its specific mechanism in chronic rhinosinusitis with nasal polyps (CRSwNP) remains unclear. In this study, we investigated the role of sPLA2GIB in the pathophysiology of CRSwNP. METHODS Quantitative PCR, immunofluorescence staining, western blotting, and enzyme-linked immunosorbent assay (ELISA) were used to analyze the expression of sPLA2s, phospholipase A2 receptor (PLA2R), and prostaglandin D2 (PGD2) in nasal samples. Human nasal epithelial cells (HNECs) were cultured at an air-liquid interface (ALI) and stimulated with various cytokines. The human mast cell line HMC-1 was stimulated with sPLA2GIB, and the expression of PGD2 and cytokines in the culture supernatant was detected by ELISA. RESULTS The mRNA and protein levels of sPLA2GIB were significantly higher in eosinophilic CRSwNP than in control tissues. sPLA2GIB was predominantly expressed in the nasal epithelial cells. PLA2R mRNA and protein levels were upregulated in both eosinophilic and non-eosinophilic CRSwNP compared with the control groups. IL-4, IL-13, TNF-α, and IL-1β upregulated the expression of sPLA2GIB in ALI-cultured HNECs. sPLA2GIB induced PGD2 and IL-13 production in HMC-1 cells in a hydrolytic activity-independent manner. PGD2 protein expression was elevated in tissue homogenates of eosinophilic CRSwNP, and PGD2 upregulated the expression of IL-13 in HMC-1 cells. CONCLUSION Increased secretion of sPLA2GIB by epithelial cells may promote eosinophilic inflammation in CRSwNP by enhancing PGD2 and IL-13 production in mast cells via binding to PLA2R. LEVEL OF EVIDENCE N/A Laryngoscope, 134:1107-1117, 2024.
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Affiliation(s)
- Yi-Fan Kang
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Jin-Xin Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Kai Xu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Xue-Li Li
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Xiang Lu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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2
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Kotlyarov S. Involvement of the Innate Immune System in the Pathogenesis of Chronic Obstructive Pulmonary Disease. Int J Mol Sci 2022; 23:985. [PMID: 35055174 PMCID: PMC8778852 DOI: 10.3390/ijms23020985] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/14/2022] [Accepted: 01/15/2022] [Indexed: 01/27/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a common, socially significant disease characterized by progressive airflow limitation due to chronic inflammation in the bronchi. Although the causes of COPD are considered to be known, the pathogenesis of the disease continues to be a relevant topic of study. Mechanisms of the innate immune system are involved in various links in the pathogenesis of COPD, leading to persistence of chronic inflammation in the bronchi, their bacterial colonization and disruption of lung structure and function. Bronchial epithelial cells, neutrophils, macrophages and other cells are involved in the development and progression of the disease, demonstrating multiple compromised immune mechanisms.
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Affiliation(s)
- Stanislav Kotlyarov
- Department of Nursing, Ryazan State Medical University, 390026 Ryazan, Russia
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3
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de Lira KL, Machado FDF, Viana AFSC, Oliveira IS, Silva FVD, Fernandes HDB, Almeida JRGDS, Oliveira FDA, Branco A, Oliveira RDCM. Gastroprotective Activity of Neoglaziovia variegata (Arruda) Mez. (Bromeliaceae) in Rats and Mice. J Med Food 2021; 24:1113-1123. [PMID: 34425057 DOI: 10.1089/jmf.2020.0182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Neoglaziovia variegata (Arruda) Mez (Bromeliaceae) is a medicinal plant popularly known as "caroá." The leaves are made up of highly resistant fibers, which is of great commercial value to the handicraft and textile industry. Some studies have demonstrated that ethanolic extract of N. variegata have gastroprotective properties. This study aimed to investigate the gastroprotective activity and cytoprotective mechanisms of ethyl acetate (Nv-AcOEt), hexane (Nv-Hex), and chloroform (Nv-CHCl3) fractions of N. variegata leaves. The gastroprotective activity of Nv-AcOEt, Nv-Hex, and Nv-CHCl3 was evaluated using the ethanol and ethanol/HCl-induced gastric injury model. To elucidate the gastroprotective mechanisms, the functions of prostaglandins (PGs), nitric oxide (NO), and KATP channels were evaluated. In addition, the nonprotein sulfhydryl groups and the mucus content in the gastric tissues were analyzed. All fractions of N. variegata leaves at oral doses of 100, 200, and 400 mg/kg significantly decreased ethanol and ethanol/HCl-induced gastric lesions, leading to gastroprotection, accompanied by an increase in reduced glutathione (GSH) and gastric mucus. Gastroprotective activity of Nv-AcOEt was inhibited after pretreatment with ibuprofen and N(G)-nitro-L-arginine (L-NOARG). Gastroprotective effect of Nv-Hex and Nv-CHCl3 was also inhibited after pretreatment with L-NOARG and with glibenclamide. The results indicate that N. variegata (Arruda) Mez exhibits promising gastroprotective activity with the possible participation of NO, PGs, mucus, sulfhydryl groups, and KATP.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Alexsandro Branco
- Health Department, State University of Feira de Santana, Feira de Santana, Brazil
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4
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Rubin BK. The guardians of the airway. Paediatr Respir Rev 2021; 38:1. [PMID: 34020907 DOI: 10.1016/j.prrv.2021.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 04/26/2021] [Indexed: 11/18/2022]
Affiliation(s)
- Bruce K Rubin
- Jessie Ball duPont Distinguished Professor, Dept. of Pediatrics, Professor of Biomedical Engineering, Virginia Commonwealth University School of Medicine, Virginia Eminent Scholar in Pediatrics, 1000 East Broad St, Richmond, VA 23298 USA.
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Petit A, Knabe L, Khelloufi K, Jory M, Gras D, Cabon Y, Begg M, Richard S, Massiera G, Chanez P, Vachier I, Bourdin A. Bronchial Epithelial Calcium Metabolism Impairment in Smokers and Chronic Obstructive Pulmonary Disease. Decreased ORAI3 Signaling. Am J Respir Cell Mol Biol 2019; 61:501-511. [DOI: 10.1165/rcmb.2018-0228oc] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Aurelie Petit
- Department of Respiratory Diseases and Addictology, Hôpital Arnaud de Villeneuve, Centre Hospitalier Universitaire Montpellier, Montpellier, France
| | - Lucie Knabe
- Department of Respiratory Diseases and Addictology, Hôpital Arnaud de Villeneuve, Centre Hospitalier Universitaire Montpellier, Montpellier, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1046, Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche (UMR) 9214, University of Montpellier, Montpellier, France
| | - Kamel Khelloufi
- CNRS, Centre Interdisciplinaire de Nanoscience de Marseille UMR 7325, and
| | - Myriam Jory
- UMR 5221 CNRS, Laboratoire Charles Coulomb (L2C), Montpellier, France
| | - Delphine Gras
- Assistance Publique Hôpitaux de Marseille (APHM), Centre de recherche en CardioVasculaire et Nutrition, INSERM U1263 Institut National de la Recherche Agronomique (INRA) 1260, Clinique des Bronches Allergies et Sommeil, Aix Marseille University, Marseille, France
| | - Yann Cabon
- Department of Medical Information, Montpellier University Hospital, Montpellier, France; and
| | - Malcolm Begg
- Refractory Respiratory Inflammation Data Processing Unit, Respiratory TAU, GlaxoSmithKline, Stevenage, United Kingdom
| | - Sylvain Richard
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1046, Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche (UMR) 9214, University of Montpellier, Montpellier, France
| | - Gladys Massiera
- UMR 5221 CNRS, Laboratoire Charles Coulomb (L2C), Montpellier, France
| | - Pascal Chanez
- Assistance Publique Hôpitaux de Marseille (APHM), Centre de recherche en CardioVasculaire et Nutrition, INSERM U1263 Institut National de la Recherche Agronomique (INRA) 1260, Clinique des Bronches Allergies et Sommeil, Aix Marseille University, Marseille, France
| | - Isabelle Vachier
- Department of Respiratory Diseases and Addictology, Hôpital Arnaud de Villeneuve, Centre Hospitalier Universitaire Montpellier, Montpellier, France
| | - Arnaud Bourdin
- Department of Respiratory Diseases and Addictology, Hôpital Arnaud de Villeneuve, Centre Hospitalier Universitaire Montpellier, Montpellier, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1046, Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche (UMR) 9214, University of Montpellier, Montpellier, France
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6
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Chen ZG, Li YY, Wang ZN, Li M, Lim HF, Zhou YQ, Cai LM, Li YT, Yang LF, Zhang TT, Wang DY. Aberrant epithelial remodeling with impairment of cilia architecture in non-cystic fibrosis bronchiectasis. J Thorac Dis 2018; 10:1753-1764. [PMID: 29707330 PMCID: PMC5906310 DOI: 10.21037/jtd.2018.02.13] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/29/2018] [Indexed: 11/06/2022]
Abstract
BACKGROUND Aberrant epithelial remodeling and/or abnormalities in mucociliary apparatus in airway epithelium contribute to infection and inflammation. It is uncertain if these changes occur in both large and small airways in non-cystic fibrosis bronchiectasis (non-CF bronchiectasis). In this study, we aim to investigate the histopathology and inflammatory profile in the epithelium of bronchi and bronchioles in bronchiectasis. METHODS Excised lung tissue sections from 52 patients with non-CF bronchiectasis were stained with specific cellular markers and analyzed by immunohistochemistry and immunofluorescence to assess the epithelial structures, including ciliated cells and goblet cells morphology. Inflammatory cell counts and ciliary proteins expression levels of centrosomal protein 110 (CP110) and dynein heavy chain 5, axonemal (DNAH5) were assessed. RESULTS Epithelial hyperplasia is found in both bronchi and bronchioles in all specimens, including hyperplasia and/or hypertrophy of goblet cells. The median cilia length is longer in hyperplastic epithelium [bronchi: 8.16 (7.03-9.14) µm, P<0.0001; bronchioles: 7.46 (6.41-8.48) µm, P<0.0001] as compared to non-hyperplastic epithelium (bronchi: 5.60 µm; bronchioles: 4.89 µm). Hyperplastic epithelium is associated with overexpression of CP110 and decreased intensity of DNAH5 expression in both bronchial and bronchiolar epithelium. Though infiltration of neutrophils is predominant (63.0% in bronchi and 76.7% in bronchioles), eosinophilic infiltration is also present in the mucosa of bronchi (30.8%) and bronchioles (54.8%). CONCLUSIONS Aberrant epithelial remodeling with impaired mucociliary architecture is present in both large and small airways in patients with refractory non-CF bronchiectasis. Future studies should evaluate the interplay between these individual components in driving chronic inflammation and lung damage in patients.
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Affiliation(s)
- Zhuang-Gui Chen
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou 510630, China
| | - Ying-Ying Li
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore
| | - Zhao-Ni Wang
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Ming Li
- Department of Pulmonary Diseases, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510700, China
| | - Hui-Fang Lim
- Division of Respiratory & Critical Care Medicine, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore
| | - Yu-Qi Zhou
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou 510630, China
| | - Liang-Ming Cai
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Ya-Ting Li
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Li-Fen Yang
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Tian-Tuo Zhang
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-sen University, Guangzhou 510630, China
| | - De-Yun Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore
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Marcos-Vadillo E, García-Sánchez A. Cell Culture Techniques: Corticosteroid Treatment in A549 Human Lung Epithelial Cell. Methods Mol Biol 2017; 1434:169-83. [PMID: 27300538 DOI: 10.1007/978-1-4939-3652-6_12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Experimentation with cell cultures is widespread in different areas of basic science as well as in the development of biotechnology applied to medicine. Cellular models are applied to the study of respiratory diseases. In this chapter, we present a protocol of basic cell culture using A549 Human lung adenocarcinoma epithelial cells as model. Corticosteroid therapy is used to treat respiratory diseases such asthma. Thus, we also describe a protocol of lung epithelial cell culture treated with dexamethasone to illustrate an example of monitoring the effects of a drug in a lung cell culture assay.
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Affiliation(s)
- Elena Marcos-Vadillo
- Department of Clinical Biochemistry, University Hospital of Salamanca, Paseo de San Vicente 58, Salamanca, 37007, Spain.
- Salamanca Institute for Biomedical Research (IBSAL), Salamanca, Spain.
| | - Asunción García-Sánchez
- Salamanca Institute for Biomedical Research (IBSAL), University Hospital of Salamanca, Salamanca, Spain
- Department of Biomedical and Diagnostic Sciences, University of Salamanca, Salamanca, Spain
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Activating prostaglandin E2 receptor subtype EP4 increases secreted mucin from airway goblet cells. Pulm Pharmacol Ther 2017; 48:117-123. [PMID: 29129801 DOI: 10.1016/j.pupt.2017.11.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 10/03/2017] [Accepted: 11/07/2017] [Indexed: 01/24/2023]
Abstract
Prostaglandin E2 (PGE2) is a ligand of the E-type prostanoid receptors, EP1-4. PGE2 secretion is increased in the airways of patients with asthma by secretory phospholipases A2, which also increases MUC5AC mucin in goblet cells. We hypothesized that PGE2 would also increase MUC5AC mRNA and secreted protein through specific EP receptor activation. We sought to assess the effect of specific EP receptor activation on MUC5AC secretion from ciliated-enriched cells or goblet-enriched cells induced by IL-13. We develop an enriched goblet cell epithelium by growing normal human bronchial epithelial cells at air liquid interface for 14 days in the presence of IL-13. We examined exposure to 4 specific EP receptor agonists at 24 h and 14 days in cells grown with or without IL-13 exposure, and measured MUC5AC mRNA and secreted protein, as well as airway culture morphology, and EP receptor expression. In ciliated-enriched cells grown in the absence of IL-13, the EP4 receptor agonist modestly increased both MUC5AC mRNA and secretion (p < 0.001, 241% increase of transcripts and p < 0.01, 86% increase of secreted protein) but did not visibly change cell morphology. In goblet-enriched cells grown in the presence of IL-13, the EP4 receptor agonist greatly increased both MUC5AC mRNA and protein (p < 0.001, 315% increase of transcripts and 92% increase of secreted protein). Specific activation of the other EP receptor had no effect on secreted mucin. EP4 receptor mRNA and protein were significantly increased in goblet-enriched cells, while the other receptor mRNA were decreased. We conclude that PGE2 stimulates airway mucin production predominantly by EP4 receptor activation in association with increased EP4 receptor expression. This may contribute to mucus hypersecretion as seen in severe asthma.
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Suzaki I, Kawano S, Komiya K, Tanabe T, Akaba T, Asano K, Suzaki H, Izuhara K, Rubin BK. Inhibition of IL-13-induced periostin in airway epithelium attenuates cellular protein expression of MUC5AC. Respirology 2016; 22:93-100. [DOI: 10.1111/resp.12873] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/31/2016] [Accepted: 06/15/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Isao Suzaki
- Department of Pediatrics; Virginia Commonwealth University School of Medicine; Richmond Virginia USA
- Department of Otorhinolaryngology, School of Medicine; Showa University; Tokyo Japan
| | - Shuichi Kawano
- Department of Pediatrics; Virginia Commonwealth University School of Medicine; Richmond Virginia USA
| | - Kosaku Komiya
- Department of Pediatrics; Virginia Commonwealth University School of Medicine; Richmond Virginia USA
| | - Tsuyoshi Tanabe
- Department of Pediatrics; Virginia Commonwealth University School of Medicine; Richmond Virginia USA
| | - Tomohiro Akaba
- Department of Pediatrics; Virginia Commonwealth University School of Medicine; Richmond Virginia USA
| | - Kazuhito Asano
- Division of Physiology, School of Nursing and Rehabilitation Sciences; Showa University; Yokohama Japan
| | - Harumi Suzaki
- Nasal and Paranasal Sinus Disease and Allergy Institute; Tokyo General Hospital; Tokyo Japan
| | - Kenji Izuhara
- Division of Medical Biochemistry, Department of Biomolecular Sciences; Saga Medical School; Saga Japan
| | - Bruce K. Rubin
- Department of Pediatrics; Virginia Commonwealth University School of Medicine; Richmond Virginia USA
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Chen L, Zhang YH, Zheng M, Huang T, Cai YD. Identification of compound-protein interactions through the analysis of gene ontology, KEGG enrichment for proteins and molecular fragments of compounds. Mol Genet Genomics 2016; 291:2065-2079. [PMID: 27530612 DOI: 10.1007/s00438-016-1240-x] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 08/09/2016] [Indexed: 12/13/2022]
Abstract
Compound-protein interactions play important roles in every cell via the recognition and regulation of specific functional proteins. The correct identification of compound-protein interactions can lead to a good comprehension of this complicated system and provide useful input for the investigation of various attributes of compounds and proteins. In this study, we attempted to understand this system by extracting properties from both proteins and compounds, in which proteins were represented by gene ontology and KEGG pathway enrichment scores and compounds were represented by molecular fragments. Advanced feature selection methods, including minimum redundancy maximum relevance, incremental feature selection, and the basic machine learning algorithm random forest, were used to analyze these properties and extract core factors for the determination of actual compound-protein interactions. Compound-protein interactions reported in The Binding Databases were used as positive samples. To improve the reliability of the results, the analytic procedure was executed five times using different negative samples. Simultaneously, five optimal prediction methods based on a random forest and yielding maximum MCCs of approximately 77.55 % were constructed and may be useful tools for the prediction of compound-protein interactions. This work provides new clues to understanding the system of compound-protein interactions by analyzing extracted core features. Our results indicate that compound-protein interactions are related to biological processes involving immune, developmental and hormone-associated pathways.
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Affiliation(s)
- Lei Chen
- College of Information Engineering, Shanghai Maritime University, Shanghai, 201306, People's Republic of China.
| | - Yu-Hang Zhang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, People's Republic of China
| | - Mingyue Zheng
- Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Shanghai, 201203, People's Republic of China
| | - Tao Huang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, People's Republic of China
| | - Yu-Dong Cai
- School of Life Sciences, Shanghai University, Shanghai, 200444, People's Republic of China.
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Alberca-Custódio RW, Greiffo FR, MacKenzie B, Oliveira-Junior MC, Andrade-Sousa AS, Graudenz GS, Santos ABG, Damaceno-Rodrigues NR, Castro-Faria-Neto HC, Arantes-Costa FM, Martins MDA, Abbasi A, Lin CJ, Idzko M, Ligeiro Oliveira AP, Northoff H, Vieira RP. Aerobic Exercise Reduces Asthma Phenotype by Modulation of the Leukotriene Pathway. Front Immunol 2016; 7:237. [PMID: 27379098 PMCID: PMC4905963 DOI: 10.3389/fimmu.2016.00237] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 06/02/2016] [Indexed: 12/30/2022] Open
Abstract
Introduction Leukotrienes (LTs) play a central role in asthma. Low- to moderate-intensity aerobic exercise (AE) reduces asthmatic inflammation in clinical studies and in experimental models. This study investigated whether AE attenuates LT pathway activation in an ovalbumin (OVA) model of asthma. Methods Sixty-four male, BALB/c mice were distributed into Control, Exercise (Exe), OVA, and OVA + Exe groups. Treadmill training was performed at moderate intensity, 5×/week, 1 h/session for 4 weeks. Quantification of bronchoalveolar lavage (BAL) cellularity, leukocytes, airway remodeling, interleukin (IL)-5, IL-13, cysteinyl leukotriene (CysLT), and leukotriene B4 (LTB4) in BAL was performed. In addition, quantitative analyses on peribronchial leukocytes and airway epithelium for LT pathway agents: 5-lypoxygenase (5-LO), LTA4 hydrolase (LTA4H), CysLT1 receptor, CysLT2 receptor, LTC4 synthase, and LTB4 receptor 2 (BLT2) were performed. Airway hyperresponsiveness (AHR) to methacholine (MCh) was assessed via whole body plethysmography. Results AE decreased eosinophils (p < 0.001), neutrophils (p > 0.001), lymphocytes (p < 0.001), and macrophages (p < 0.01) in BAL, as well as eosinophils (p < 0.01), lymphocytes (p < 0.001), and macrophages (p > 0.001) in airway walls. Collagen (p < 0.01), elastic fibers (p < 0.01), mucus production (p < 0.01), and smooth muscle thickness (p < 0.01), as well as IL-5 (p < 0.01), IL-13 (p < 0.01), CysLT (p < 0.01), and LTB4 (p < 0.01) in BAL were reduced. 5-LO (p < 0.05), LTA4H (p < 0.05), CysLT1 receptor (p < 0.001), CysLT2 receptor (p < 0.001), LTC4 synthase (p < 0.001), and BLT2 (p < 0.01) expression by peribronchial leukocytes and airway epithelium were reduced. Lastly, AHR to MCh 25 mg/mL (p < 0.05) and 50 mg/mL (p < 0.01) was reduced. Conclusion Moderate-intensity AE attenuated asthma phenotype and LT production in both pulmonary leukocytes and airway epithelium of OVA-treated mice.
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Affiliation(s)
- Ricardo Wesley Alberca-Custódio
- Laboratory of Pulmonary and Exercise Immunology (LABPEI) and Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University (UNINOVE) , São Paulo , Brazil
| | - Flávia Regina Greiffo
- Laboratory of Pulmonary and Exercise Immunology (LABPEI) and Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University (UNINOVE) , São Paulo , Brazil
| | - BreAnne MacKenzie
- Laboratory of Pulmonary and Exercise Immunology (LABPEI) and Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University (UNINOVE) , São Paulo , Brazil
| | - Manoel Carneiro Oliveira-Junior
- Laboratory of Pulmonary and Exercise Immunology (LABPEI) and Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University (UNINOVE) , São Paulo , Brazil
| | - Adilson Santos Andrade-Sousa
- Laboratory of Pulmonary and Exercise Immunology (LABPEI) and Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University (UNINOVE) , São Paulo , Brazil
| | - Gustavo Silveira Graudenz
- Laboratory of Pulmonary and Exercise Immunology (LABPEI) and Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University (UNINOVE) , São Paulo , Brazil
| | - Angela Batista Gomes Santos
- Laboratory of Pulmonary and Exercise Immunology (LABPEI) and Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University (UNINOVE) , São Paulo , Brazil
| | | | - Hugo Caire Castro-Faria-Neto
- Laboratory of Immunopharmacology, Institute Oswaldo Cruz (IOF), Oswaldo Cruz Foundation , Rio de Janeiro , Brazil
| | | | - Milton De Arruda Martins
- Laboratory of Experimental Therapeutics (LIM 20), School of Medicine, University of São Paulo (USP) , São Paulo , Brazil
| | - Asghar Abbasi
- Institute for Memory Impairments and Neurological Disorders (MIND Institute), University of California Irvine , Irvine, CA , USA
| | - Chin Jia Lin
- Department of Pathology (LIM 05), School of Medicine, University of São Paulo (USP) , São Paulo , Brazil
| | - Marco Idzko
- COPD and Asthma Research Group, Department of Pneumology, University Hospital Freiburg , Freiburg , Germany
| | - Ana Paula Ligeiro Oliveira
- Laboratory of Pulmonary and Exercise Immunology (LABPEI) and Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University (UNINOVE) , São Paulo , Brazil
| | - Hinnak Northoff
- Institute of Clinical and Experimental Transfusion Medicine (IKET), University of Tübingen , Tübingen , Germany
| | - Rodolfo Paula Vieira
- Laboratory of Pulmonary and Exercise Immunology (LABPEI) and Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Nove de Julho University (UNINOVE) , São Paulo , Brazil
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Tanabe T, Rubin BK. Airway Goblet Cells Secrete Pro-Inflammatory Cytokines, Chemokines, and Growth Factors. Chest 2016; 149:714-20. [DOI: 10.1378/chest.15-0947] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 08/24/2015] [Accepted: 09/01/2015] [Indexed: 12/29/2022] Open
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