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Wang Y, Yang H, Su X, Cao A, Chen F, Chen P, Yan F, Hu H. SREBP2 promotes the viability, proliferation, and migration and inhibits apoptosis in TGF-β1-induced airway smooth muscle cells by regulating TLR2/NF-κB/NFATc1/ABCA1 regulatory network. Bioengineered 2022; 13:3137-3147. [PMID: 35037821 PMCID: PMC8973716 DOI: 10.1080/21655979.2022.2026550] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Asthma is a respiratory disease with complex pathogenesis. Sterol-responsive element-binding proteins 2 (SREBP2) was found to bind to promoter sequences of ABCA1 to suppress ABCA1 promoter activity. This study aimed to explore the expression level of SREBP2 and ATP-binding cassette transporter A1 (ABCA1), and their effects on the development of airway smooth muscle cells (ASMCs) in asthma. ASMCs were treated with different concentrations of TGF-β1 (0, 0.5, 1, 5 and 10 ng/mL). Short hairpin SREBP2 (shSREBP2), SREBP2, shABCA1 or ABCA1 were transfected into ASMCs. Cell viability, proliferation, apoptosis, migration, and the expression of SREBP2, ABCA1 and related pathway proteins were detected by MTT assay, Brdu staining, flow cytometer, Transwell assay, qRT-PCR, and Western blotting, respectively. The results showed that TGF-β1 increased the viability, proliferation, migration and inhibited apoptosis in ASMCs. Moreover, TGF-β1 also decreased the expression of ABCA1, cleaved caspase-3, cleaved PARP, E-cadherin, and increased the expression of vimentin, TLR2, p-p65 and NFATc1. SREBP2 knockdown alleviated these TGF-β1-induced changes. SREBP2 overexpression inhibited ABCA1 expression and apoptosis, and promoted cell migration and the expression of TLR2, p-p65, NFATc1 in ASMCs. ABCA1 overexpression alleviated these SREBP2-induced promoting and inhibition effects. In conclusion, SREBP2 activates TLR2/NF-κB/NFATc1 regulatory network and promotes TGF-β1-induced cell movement through inhibiting ABCA1 expression.
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Affiliation(s)
- Yuebin Wang
- Department of Respiratory and Critical Care Medicine, Chengdu Third People's Hospital, Chengdu, China
| | - Huike Yang
- Department of Anatomy, Harbin Medical University, Harbin, China
| | - Xian Su
- Department of Respiratory and Critical Care Medicine, Chengdu Third People's Hospital, Chengdu, China
| | - Anqiang Cao
- Department of Cardiothoracic Surgery, Meishan People's Hospital, Meishan, China
| | - Feng Chen
- Department of Cardiothoracic Surgery, Chengdu Third People's Hospital, Chengdu, China
| | - Peng Chen
- Department of Cardiothoracic Surgery, Chengdu Third People's Hospital, Chengdu, China
| | - Fangtao Yan
- Department of Cardiothoracic Surgery, Chengdu Third People's Hospital, Chengdu, China
| | - Huirong Hu
- Department of Cardiothoracic Surgery, Chengdu Third People's Hospital, Chengdu, China
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Jiao B, Chen Y, Yang Y, Sai L, Yu G, Bo C, Zhang Y, Peng C, Jia Q, Shao H. Toluene diisocyanate-induced inflammation and airway remodeling involves autophagy in human bronchial epithelial cells. Toxicol In Vitro 2020; 70:105040. [PMID: 33127434 DOI: 10.1016/j.tiv.2020.105040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/08/2020] [Accepted: 10/24/2020] [Indexed: 11/19/2022]
Abstract
Toluene-diisocyanate (TDI) is one of the main causes of occupational asthma. To study the role of autophagy in TDI-induced airway inflammation and airway remodeling in bronchial airway epithelial (16HBE) cells. We treated 16HBE cells with TDI-human serum albumin (TDI-HSA) conjugate to observe reactive oxygen species (ROS) release, autophagy activation, airway inflammation and airway remodeling. 3-Methyladenine (3-MA) and Rapamycin (Rapa) intervention were used to explore the effects of autophagy on inflammatory response and protein expression related to airway remodeling in 16HBE cells treated with TDI-HSA. Experimental results suggested that various concentrations of TDI-HSA (0, 40, 80 and 120 μg/mL) increased the release of ROS and the expression of Nrf2, activated autophagy and increased the expression of AMPK, Beclin-1, LC3 and decreased the expression of p62, promoted the levels of IL-5, IL-6 and IL-8 in 16HBE cells. Results also showed that E-cadherin expression decreased but an increase was observed in α-SMA and MMP-9 in the TDI-HSA group. The treatment of TDI-HSA combined with Rapa aggravated the above reaction whereas the inverse was true for TDI-HSA combined with 3-MA. These results indicated that autophagy is involved in TDI-induced airway inflammation and airway remodeling as a positive regulatory mechanism, inhibiting autophagy can significantly alleviate the TDI-induced inflammatory response and attenuate airway remodeling protein expression in 16HBE cells.
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Affiliation(s)
- Bo Jiao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
| | - Yujun Chen
- Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - Yuting Yang
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, The Key Laboratory for Reproductive Endocrinology of Ministry of Education, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan, Shandong 250001, China
| | - Linlin Sai
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
| | - Gongchang Yu
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
| | - Cunxiang Bo
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
| | - Yu Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
| | - Cheng Peng
- Queensland Alliance for Environmental Health Sciences (QAEHS), University of Queensland, Brisbane, Queensland 4029, Australia
| | - Qiang Jia
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China.
| | - Hua Shao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250062, China
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Huang Q, Han L, Lv R, Ling L. Magnolol exerts anti-asthmatic effects by regulating Janus kinase-signal transduction and activation of transcription and Notch signaling pathways and modulating Th1/Th2/Th17 cytokines in ovalbumin-sensitized asthmatic mice. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2019; 23:251-261. [PMID: 31297009 PMCID: PMC6609269 DOI: 10.4196/kjpp.2019.23.4.251] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 12/15/2022]
Abstract
Allergic asthma, is a common chronic inflammatory disease of the airway presenting with airway hyperresponsiveness and airway remodelling. T helper cells-derived cytokines are critically associated with asthma pathogenesis. Janus kinase-signal transduction and activation of transcription (JAK/STAT) signaling is found to be involved in asthma. Magnolol is a plant-derived bioactive compound with several pharmacological effects. The study aimed to assess the effects of magnolol in ovalbumin (OVA)-induced asthmatic model. BALB/c mice were sensitized and challenged with OVA. Magnolol (12.5, 25, or 50 mg/kg body weight) was administered to separate groups of animals. Dexamethasone was used as the positive control. Cellular infiltration into the bronchoalveolar lavage fluid (BALF) were reduced on magnolol treatment. The levels of Th2 and Th17 cytokines were reduced with noticeably raised levels of interferon gamma. Lung function was improved effectively along with restoration of bronchial tissue architecture. OVA-specific immunoglobulin E levels in serum and BALF were decreased by magnolol. Magnolol reduced Th17 cell population and effectively modulated the JAK-STAT and Notch 1 signaling. The results suggest the promising use of magnolol in therapy for allergic asthma.
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Affiliation(s)
- Qi Huang
- Department of Gerontology, Wujiang Hospital Affiliated to Nantong University, Suzhou, Jiangsu 215505, China
| | - Lele Han
- Department of Gerontology, Wujiang Hospital Affiliated to Nantong University, Suzhou, Jiangsu 215505, China
| | - Rong Lv
- Department of Gerontology, Wujiang Hospital Affiliated to Nantong University, Suzhou, Jiangsu 215505, China
| | - Ling Ling
- Department of Gerontology, Wujiang Hospital Affiliated to Nantong University, Suzhou, Jiangsu 215505, China
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4
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Jha A, Ryu MH, Oo O, Bews HJ, Carlson JC, Schwartz J, Basu S, Wong CS, Halayko AJ. Prophylactic benefits of systemically delivered simvastatin treatment in a house dust mite challenged murine model of allergic asthma. Br J Pharmacol 2018; 175:1004-1016. [PMID: 29318574 DOI: 10.1111/bph.14140] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 11/23/2017] [Accepted: 12/10/2017] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND AND PURPOSE Systemically delivered statins can blunt airway inflammation in ovalbumin-challenged mice. However, in asthma clinical trials the beneficial effects of introducing oral statins are not compelling. We have invetigated this discrepancy using a clinically relevant murine model of allergic asthma, and by including a prophylactic study arm. EXPERIMENTAL APPROACH Adult mice were: 1) challenged with house dust mite (HDM) alone or with subcutaneous (s.c.) simvastatin for two weeks; or 2) also treated with simvastatin for one week prior to HDM challenge. We assayed lung function, inflammatory cell influx and cytokine profile, goblet cell abundance, and simvastatin concentration in serum, lung lavage and tissue. KEY RESULTS Ultrahigh performance liquid chromatography-tandem mass spectrometry revealed that pharmacologically active simvastatin reached peak serum concentration after 8 h, but declined rapidly. Prophylactic treatment doubled peak serum simvastatin and repeated s.c. delivery established stable serum levels, but simvastatin was undetectable in the lungs. Both simvastatin treatment arms suppressed indices of HDM-induced airway inflammation and goblet cell hyperplasia, but this was significantly greater with prophylactic therapy, in particular, inhibition of neutrophil and eosinophil influx, and cytokine accumulation. Conversely, neither acute nor prophylactic delivery of simvastatin prevented HDM challenge-induced airway hyperreactivity. CONCLUSION AND IMPLICATIONS Systemically administered simvastatin accumulates in the blood, but not in lung tissues, and reduces leukocyte influx and associated lung inflammation. Prophylactic therapy has the greatest anti-inflammatory effects, but as observed in human clinical trials, systemic simvastatin therapy does not prevent allergic airway hyperreactivity.
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Affiliation(s)
- Aruni Jha
- Departments of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada.,Canadian Respiratory Research Network, Ottawa, ON, Canada
| | - Min H Ryu
- Departments of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada.,Canadian Respiratory Research Network, Ottawa, ON, Canada
| | - Ojo Oo
- Departments of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Hilary J Bews
- Richardson College for the Environment, University of Winnipeg, Winnipeg, MB, Canada
| | - Jules C Carlson
- Richardson College for the Environment, University of Winnipeg, Winnipeg, MB, Canada
| | - Jacquie Schwartz
- Departments of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Sujata Basu
- Departments of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Charles S Wong
- Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada.,Richardson College for the Environment, University of Winnipeg, Winnipeg, MB, Canada
| | - Andrew J Halayko
- Departments of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Internal Medicine, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada.,Canadian Respiratory Research Network, Ottawa, ON, Canada
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5
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de Vries R, Dagelet YWF, Spoor P, Snoey E, Jak PMC, Brinkman P, Dijkers E, Bootsma SK, Elskamp F, de Jongh FHC, Haarman EG, In 't Veen JCCM, Maitland-van der Zee AH, Sterk PJ. Clinical and inflammatory phenotyping by breathomics in chronic airway diseases irrespective of the diagnostic label. Eur Respir J 2018; 51:51/1/1701817. [PMID: 29326334 DOI: 10.1183/13993003.01817-2017] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/01/2017] [Indexed: 01/10/2023]
Abstract
Asthma and chronic obstructive pulmonary disease (COPD) are complex and overlapping diseases that include inflammatory phenotypes. Novel anti-eosinophilic/anti-neutrophilic strategies demand rapid inflammatory phenotyping, which might be accessible from exhaled breath.Our objective was to capture clinical/inflammatory phenotypes in patients with chronic airway disease using an electronic nose (eNose) in a training and validation set.This was a multicentre cross-sectional study in which exhaled breath from asthma and COPD patients (n=435; training n=321 and validation n=114) was analysed using eNose technology. Data analysis involved signal processing and statistics based on principal component analysis followed by unsupervised cluster analysis and supervised linear regression.Clustering based on eNose resulted in five significant combined asthma and COPD clusters that differed regarding ethnicity (p=0.01), systemic eosinophilia (p=0.02) and neutrophilia (p=0.03), body mass index (p=0.04), exhaled nitric oxide fraction (p<0.01), atopy (p<0.01) and exacerbation rate (p<0.01). Significant regression models were found for the prediction of eosinophilic (R2=0.581) and neutrophilic (R2=0.409) blood counts based on eNose. Similar clusters and regression results were obtained in the validation set.Phenotyping a combined sample of asthma and COPD patients using eNose provides validated clusters that are not determined by diagnosis, but rather by clinical/inflammatory characteristics. eNose identified systemic neutrophilia and/or eosinophilia in a dose-dependent manner.
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Affiliation(s)
- Rianne de Vries
- Dept of Respiratory Medicine, Academic Medical Centre, Amsterdam, The Netherlands
| | - Yennece W F Dagelet
- Dept of Respiratory Medicine, Academic Medical Centre, Amsterdam, The Netherlands
| | - Pien Spoor
- Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Erik Snoey
- Dept of Pulmonology, Franciscus Gasthuis, Rotterdam, The Netherlands
| | - Patrick M C Jak
- Dept of Pediatric Pulmonology, VU University Medical Center, Amsterdam, The Netherlands
| | - Paul Brinkman
- Dept of Respiratory Medicine, Academic Medical Centre, Amsterdam, The Netherlands
| | - Erica Dijkers
- Dept of Respiratory Medicine, Academic Medical Centre, Amsterdam, The Netherlands
| | | | | | - Frans H C de Jongh
- Dept of Pulmonary Function, Medisch Spectrum Twente, Enschede, The Netherlands
| | - Eric G Haarman
- Dept of Pediatric Pulmonology, VU University Medical Center, Amsterdam, The Netherlands
| | | | | | - Peter J Sterk
- Dept of Respiratory Medicine, Academic Medical Centre, Amsterdam, The Netherlands
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6
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Sánchez-Ramos JL, Pereira-Vega AR, Alvarado-Gómez F, Maldonado-Pérez JA, Svanes C, Gómez-Real F. Risk factors for premenstrual asthma: a systematic review and meta-analysis. Expert Rev Respir Med 2016; 11:57-72. [DOI: 10.1080/17476348.2017.1270762] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | | | - Francisco Alvarado-Gómez
- Library, Juan Ramón Jiménez Hospital, Huelva, Spain
- Andalusian Health Service e-Library, Seville, Spain
| | | | - Cecilie Svanes
- Centre for International Health, University of Bergen, Bergen, Norway
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Francisco Gómez-Real
- Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
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7
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Yiallouros PK, Kouis P, Kolokotroni O, Youhanna S, Savva SC, Dima K, Zerva A, Platt D, Middleton N, Zalloua P. Shared genetic variants between serum levels of high-density lipoprotein cholesterol and wheezing in a cohort of children from Cyprus. Ital J Pediatr 2016; 42:67. [PMID: 27411394 PMCID: PMC4944514 DOI: 10.1186/s13052-016-0276-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 07/03/2016] [Indexed: 02/07/2023] Open
Abstract
Background In a cohort of children in Cyprus, we recently reported low levels of high density lipoprotein cholesterol (HDL-C) to be associated with asthma. We examined whether genetic polymorphisms that were previously linked individually to asthma, obesity, or HDL-C are associated with both asthma and HDL-C levels in the Cyprus cohort. Methods We assessed genotypes frequencies in current-wheezers (n = 190) and non-asthmatic controls (n = 671) and HDL-C levels across several genotypes. Binary logistic regression models were used to assess the effect of genotypes on wheezing risk and examined whether this effect is carried out through changes of HDL–C. Results Of the 16 polymorphisms tested, two polymorphisms TNFa rs3093664 and PRKCA rs9892651 presented significant differences in genotype distribution among current-wheezers and controls. Higher HDL-C levels were noted in carriers of genotype GG of polymorphism TNFa rs3093664 that was protective for wheezing Vs AG and AA genotypes (65.3 Vs 51.8 and 53.3 mg/dl, p-value < 0.001 and p-value for trend = 0.028). In polymorphism PRKCA rs9892651, HDL-C levels were lower in carriers of CC and TC genotypes that were more frequent in current-wheezers Vs TT genotype (52.2 and 52.7 Vs 55.2 mg/dl, p-value = 0.042 and p-value for trend = 0.02). The association of TNFa rs3093664 with wheezing is partly mediated by its effect on HDL-C whereas association of PRKCA rs9892651 with wheezing appeared to be independent of HDL-C. Conclusions We found evidence that two SNPs located in different genetic loci, are associated with both wheezing and HDL-C levels, although more studies in other populations are needed to confirm our results. Electronic supplementary material The online version of this article (doi:10.1186/s13052-016-0276-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Panayiotis K Yiallouros
- Medical School, University of Cyprus, Nicosia, Cyprus.,Cyprus International Institute for Environmental & Public Health in Association with Harvard School of Public Health, Cyprus University of Technology, Limassol, Cyprus
| | - Panayiotis Kouis
- Cyprus International Institute for Environmental & Public Health in Association with Harvard School of Public Health, Cyprus University of Technology, Limassol, Cyprus.
| | - Ourania Kolokotroni
- Cyprus International Institute for Environmental & Public Health in Association with Harvard School of Public Health, Cyprus University of Technology, Limassol, Cyprus.,Department of Nursing, School of Health Sciences, Cyprus University of Technology, Limassol, Cyprus.,St George University of London Medical School at the University of Nicosia, Nicosia, Cyprus
| | - Sonia Youhanna
- Lebanese American University, School of Medicine, Beirut, Lebanon
| | - Savvas C Savva
- Research and Education Institute of Child Health, Nicosia, Cyprus
| | - Kleanthi Dima
- Department of Biochemistry, Attikon University Hospital, Athens, Greece
| | - Aikaterini Zerva
- Department of Biochemistry, Attikon University Hospital, Athens, Greece
| | - Danielle Platt
- Lebanese American University, School of Medicine, Beirut, Lebanon
| | - Nicos Middleton
- Department of Nursing, School of Health Sciences, Cyprus University of Technology, Limassol, Cyprus
| | - Pierre Zalloua
- Lebanese American University, School of Medicine, Beirut, Lebanon
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8
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Liao Z, Xiao HT, Zhang Y, Tong RS, Zhang LJ, Bian Y, He X. IL-1β: a key modulator in asthmatic airway smooth muscle hyper-reactivity. Expert Rev Respir Med 2015; 9:429-36. [PMID: 26134749 DOI: 10.1586/17476348.2015.1063422] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Asthma is a chronic inflammatory disorder of the airway. It is characterized by airway hyper-reactivity, which can be attributed to the chronically inflamed airway. However, the molecular mechanism is still under investigation. In this article, we have shown that IL-1β is a key molecule that can orchestrate both Toll-like receptor and muscarinic receptor pathways, and that antagonizing the function of IL-1β has a promising future as a potential drug target for asthma treatment. IL-1β can activate NF-κB pathways via Toll-like receptors, and NF-κB will eventually transactivate the genes of cytokines, chemokines, proteins of the complement system, adhesion molecules and immune receptors involved in inflammation. IL-1β can activate eosinophils, which can release major basic protein (MBP) to antagonize the M2 receptors leading to excessive acetylcholine release. Acetylcholine has an effect on M3 receptors, which are related to airway smooth muscle contraction and mucus production. IL-1β is reported to activate COX-2 resulting in heterologous desensitization of adenylate cyclase and impairs relaxation of the ASM. IL-1β is involved in mediation of neutrophilic inflammation. Identification of the prominent role of IL-1β in asthma could lead to successful use of anti-IL1β agents.
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Affiliation(s)
- Zhi Liao
- Department of Gynecology and Obstetrics, Hospital of the University of Electronic Science and Technology of China and Sichuan Provincial People's Hospital, Chengdu, China
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9
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Pérez-Losada M, Castro-Nallar E, Bendall ML, Freishtat RJ, Crandall KA. Dual Transcriptomic Profiling of Host and Microbiota during Health and Disease in Pediatric Asthma. PLoS One 2015; 10:e0131819. [PMID: 26125632 PMCID: PMC4488395 DOI: 10.1371/journal.pone.0131819] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 06/07/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND High-throughput sequencing (HTS) analysis of microbial communities from the respiratory airways has heavily relied on the 16S rRNA gene. Given the intrinsic limitations of this approach, airway microbiome research has focused on assessing bacterial composition during health and disease, and its variation in relation to clinical and environmental factors, or other microbiomes. Consequently, very little effort has been dedicated to describing the functional characteristics of the airway microbiota and even less to explore the microbe-host interactions. Here we present a simultaneous assessment of microbiome and host functional diversity and host-microbe interactions from the same RNA-seq experiment, while accounting for variation in clinical metadata. METHODS Transcriptomic (host) and metatranscriptomic (microbiota) sequences from the nasal epithelium of 8 asthmatics and 6 healthy controls were separated in silico and mapped to available human and NCBI-NR protein reference databases. Human genes differentially expressed in asthmatics and controls were then used to infer upstream regulators involved in immune and inflammatory responses. Concomitantly, microbial genes were mapped to metabolic databases (COG, SEED, and KEGG) to infer microbial functions differentially expressed in asthmatics and controls. Finally, multivariate analysis was applied to find associations between microbiome characteristics and host upstream regulators while accounting for clinical variation. RESULTS AND DISCUSSION Our study showed significant differences in the metabolism of microbiomes from asthmatic and non-asthmatic children for up to 25% of the functional properties tested. Enrichment analysis of 499 differentially expressed host genes for inflammatory and immune responses revealed 43 upstream regulators differentially activated in asthma. Microbial adhesion (virulence) and Proteobacteria abundance were significantly associated with variation in the expression of the upstream regulator IL1A; suggesting that microbiome characteristics modulate host inflammatory and immune systems during asthma.
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Affiliation(s)
- Marcos Pérez-Losada
- Computational Biology Institute, George Washington University, Ashburn, Virginia, United States of America
- Division of Emergency Medicine, Children’s National Medical Center, Washington, DC, United States of America
- CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal
| | - Eduardo Castro-Nallar
- Computational Biology Institute, George Washington University, Ashburn, Virginia, United States of America
- Universidad Andrés Bello, Center for Bioinformatics and Integrative Biology, Facultad de Ciencias Biológicas, Santiago, Chile
| | - Matthew L. Bendall
- Computational Biology Institute, George Washington University, Ashburn, Virginia, United States of America
| | - Robert J. Freishtat
- Division of Emergency Medicine, Children’s National Medical Center, Washington, DC, United States of America
| | - Keith A. Crandall
- Computational Biology Institute, George Washington University, Ashburn, Virginia, United States of America
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10
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Ghebre MA, Bafadhel M, Desai D, Cohen SE, Newbold P, Rapley L, Woods J, Rugman P, Pavord ID, Newby C, Burton PR, May RD, Brightling CE. Biological clustering supports both "Dutch" and "British" hypotheses of asthma and chronic obstructive pulmonary disease. J Allergy Clin Immunol 2014; 135:63-72. [PMID: 25129678 PMCID: PMC4282726 DOI: 10.1016/j.jaci.2014.06.035] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 06/15/2014] [Accepted: 06/18/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND Asthma and chronic obstructive pulmonary disease (COPD) are heterogeneous diseases. OBJECTIVE We sought to determine, in terms of their sputum cellular and mediator profiles, the extent to which they represent distinct or overlapping conditions supporting either the "British" or "Dutch" hypotheses of airway disease pathogenesis. METHODS We compared the clinical and physiological characteristics and sputum mediators between 86 subjects with severe asthma and 75 with moderate-to-severe COPD. Biological subgroups were determined using factor and cluster analyses on 18 sputum cytokines. The subgroups were validated on independent severe asthma (n = 166) and COPD (n = 58) cohorts. Two techniques were used to assign the validation subjects to subgroups: linear discriminant analysis, or the best identified discriminator (single cytokine) in combination with subject disease status (asthma or COPD). RESULTS Discriminant analysis distinguished severe asthma from COPD completely using a combination of clinical and biological variables. Factor and cluster analyses of the sputum cytokine profiles revealed 3 biological clusters: cluster 1: asthma predominant, eosinophilic, high TH2 cytokines; cluster 2: asthma and COPD overlap, neutrophilic; cluster 3: COPD predominant, mixed eosinophilic and neutrophilic. Validation subjects were classified into 3 subgroups using discriminant analysis, or disease status with a binary assessment of sputum IL-1β expression. Sputum cellular and cytokine profiles of the validation subgroups were similar to the subgroups from the test study. CONCLUSIONS Sputum cytokine profiling can determine distinct and overlapping groups of subjects with asthma and COPD, supporting both the British and Dutch hypotheses. These findings may contribute to improved patient classification to enable stratified medicine.
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Affiliation(s)
- Michael A Ghebre
- Department of Infection, Immunity and Inflammation, Institute for Lung Health, University of Leicester, Leicester, United Kingdom; NIHR Respiratory Biomedical Research Unit, University Hospitals of Leicester, Leicester, United Kingdom; Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - Mona Bafadhel
- Department of Respiratory Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford, United Kingdom
| | - Dhananjay Desai
- Department of Infection, Immunity and Inflammation, Institute for Lung Health, University of Leicester, Leicester, United Kingdom; NIHR Respiratory Biomedical Research Unit, University Hospitals of Leicester, Leicester, United Kingdom
| | - Suzanne E Cohen
- MedImmune Ltd, Milstein Building, Granta Park, Cambridge, United Kingdom
| | - Paul Newbold
- MedImmune Ltd, Milstein Building, Granta Park, Cambridge, United Kingdom
| | - Laura Rapley
- MedImmune Ltd, Milstein Building, Granta Park, Cambridge, United Kingdom
| | - Jo Woods
- MedImmune Ltd, Milstein Building, Granta Park, Cambridge, United Kingdom
| | - Paul Rugman
- MedImmune Ltd, Milstein Building, Granta Park, Cambridge, United Kingdom
| | - Ian D Pavord
- Department of Respiratory Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford, United Kingdom
| | - Chris Newby
- Department of Infection, Immunity and Inflammation, Institute for Lung Health, University of Leicester, Leicester, United Kingdom; NIHR Respiratory Biomedical Research Unit, University Hospitals of Leicester, Leicester, United Kingdom; Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - Paul R Burton
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom; School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - Richard D May
- MedImmune Ltd, Milstein Building, Granta Park, Cambridge, United Kingdom
| | - Chris E Brightling
- Department of Infection, Immunity and Inflammation, Institute for Lung Health, University of Leicester, Leicester, United Kingdom; NIHR Respiratory Biomedical Research Unit, University Hospitals of Leicester, Leicester, United Kingdom.
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11
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Zhou E, Fu Y, Wei Z, Yu Y, Zhang X, Yang Z. Thymol attenuates allergic airway inflammation in ovalbumin (OVA)-induced mouse asthma. Fitoterapia 2014; 96:131-7. [DOI: 10.1016/j.fitote.2014.04.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 04/22/2014] [Accepted: 04/22/2014] [Indexed: 02/06/2023]
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12
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Wei Y, Gadaria-Rathod N, Epstein S, Asbell P. Tear cytokine profile as a noninvasive biomarker of inflammation for ocular surface diseases: standard operating procedures. Invest Ophthalmol Vis Sci 2013; 54:8327-36. [PMID: 24204044 DOI: 10.1167/iovs.13-12132] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
PURPOSE To provide standard operating procedures (SOPs) for measuring tear inflammatory cytokine concentrations and to validate the resulting profile as a minimally invasive objective metric and biomarker of ocular surface inflammation for use in multicenter clinical trials on dry eye disease (DED). METHODS Standard operating procedures were established and then validated with cytokine standards, quality controls, and masked tear samples collected from local and distant clinical sites. The concentrations of the inflammatory cytokines in tears were quantified using a high-sensitivity human cytokine multiplex kit. RESULTS A panel of inflammatory cytokines was initially investigated, from which four key inflammatory cytokines (IL-1β, IL-6, INF-γ, and TNF-α) were chosen. Results with cytokine standards statistically satisfied the manufacturer's quality control criteria. Results with pooled tear samples were highly reproducible and reliable with tear volumes ranging from 4 to 10 μL. Incorporation of the SOPs into clinical trials was subsequently validated. Tear samples were collected at a distant clinical site, stored, and shipped to our Biomarker Laboratory, where a masked analysis of the four tear cytokines was successfully performed. Tear samples were also collected from a feasibility study on DED. Inflammatory cytokine concentrations were decreased in tears of subjects who received anti-inflammatory treatment. CONCLUSIONS Standard operating procedures for human tear cytokine assessment suitable for multicenter clinical trials were established. Tear cytokine profiling using these SOPs may provide objective metrics useful for diagnosing, classifying, and analyzing treatment efficacy in inflammatory conditions of the ocular surface, which may further elucidate the mechanisms involved in the pathogenesis of ocular surface disease.
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Affiliation(s)
- Yi Wei
- Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, New York
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13
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Dia VP, Bringe NA, de Mejia EG. Peptides in pepsin-pancreatin hydrolysates from commercially available soy products that inhibit lipopolysaccharide-induced inflammation in macrophages. Food Chem 2013; 152:423-31. [PMID: 24444957 DOI: 10.1016/j.foodchem.2013.11.155] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/26/2013] [Accepted: 11/26/2013] [Indexed: 12/23/2022]
Abstract
The potential of pepsin-pancreatin hydrolysates, from different foods, to inhibit inflammation using lipopolysaccharide (LPS)-induced RAW 264.7 macrophages as an in vitro model was evaluated. Eight different products were digested sequentially with pepsin and pancreatin and were evaluated for their anti-inflammatory properties. Hydrolysates from strawberry-banana soymilk (SBH), mixed berry soymilk (MXH) and vanilla soymilk (SVMH) inhibited the production of nitric oxide (27.9%, 16.4% and 28.6%, respectively), interleukin-1β (26.3%, 39.5% and 21.6%, respectively) and tumour necrosis factor-α (50.2%, 47.5% and 33.3%, respectively). In addition, SBH, MXH and SVMH inhibited the expression of pro-inflammatory enzymes: inducible nitric oxide synthase (66.7%, 65.1% and 88.0%, respectively) and cyclooxygenase-2 (62.0%, 69.9% and 40.6%, respectively). Bioactive peptides (RQRK and VIK) were generated. In conclusion, soymilk products can potentially be used to maintain health under inflammatory stress.
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Affiliation(s)
- Vermont P Dia
- University of Illinois, Urbana-Champaign, 1201 West Gregory Drive, Urbana, IL 61801, USA
| | - Neal A Bringe
- The WhiteWave Foods Company, 12002 Airport Way, Broomfield, CO 80021, USA
| | - Elvira G de Mejia
- University of Illinois, Urbana-Champaign, 1201 West Gregory Drive, Urbana, IL 61801, USA.
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14
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Kimura H, Yoshizumi M, Ishii H, Oishi K, Ryo A. Cytokine production and signaling pathways in respiratory virus infection. Front Microbiol 2013; 4:276. [PMID: 24062733 PMCID: PMC3774987 DOI: 10.3389/fmicb.2013.00276] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 08/26/2013] [Indexed: 12/13/2022] Open
Abstract
It has been confirmed that respiratory virus infections can induce abberant cytokine production in the host. These cytokines may be associated with both elimination of the virus and complications in the host, such as virus-induced asthma. Representative host defense mechanisms against pathogens, including bacteria and viruses, are mediated by the innate immune system. Cells of the innate immune system express essential molecules, namely pattern recognition receptors (PRRs), such as Toll-like receptors, nucleotide-binding oligomerization domain-like receptors, and retinoic acid-inducible gene-I-like receptors. These PRRs can recognize components of pathogens such as bacterial lipopolysaccharide, viral antigens, and their genomes (DNA and RNA). Furthermore, PRRs activate various signaling pathways resulting in cytokine production against pathogen infection. However, the exact mechanisms remain unknown. In this review, we mainly focus on the representative mechanisms of cytokine production through PRRs and signaling pathways due to virus infections, including respiratory virus infections. In addition, we describe the relationships between respiratory infections and virus-induced asthma.
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Affiliation(s)
- Hirokazu Kimura
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases Tokyo, Japan ; Gunma Prefectural Institute of Public Health and Environmental Sciences Gunma, Japan ; Department of Molecular Biodefence Research, Graduate School of Medicine, Yokohama City University Kanagawa, Japan
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15
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Gras D, Chanez P, Vachier I, Petit A, Bourdin A. Bronchial epithelium as a target for innovative treatments in asthma. Pharmacol Ther 2013; 140:290-305. [PMID: 23880290 DOI: 10.1016/j.pharmthera.2013.07.008] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 07/10/2013] [Indexed: 01/03/2023]
Abstract
Increasing evidence of a critical role played by the bronchial epithelium in airway homeostasis is opening new therapeutic avenues. Its unique situation at the interface with the environment suggests that the subtle regulation orchestrated by the epithelium between tolerance and specific immune response might be impaired in asthma. Airway mucus is acting as a physical and a biological fluid between the environment and the epithelium, synergistically moved by the cilia. In asthma, excessive mucus production is a hallmark of airway remodeling. Since many years we tried to therapeutically target mucus hypersecretion, but actually this option is still not achieved. The present review discusses the dynamic processes regulating airway mucus production. Airway inflammation is central in current asthma management. Understanding of how the airway epithelium influences the TH2 paradigm in response to deleterious agents is improving. The multiple receptors expressed by the airway epithelium are the transducers of the biological signals induced by various invasive agents to develop the most adapted response. Airway remodeling is observed in severe chronic airway diseases and may result from ongoing disturbance of signal transduction and epithelial renewal. Chronic airway diseases such as asthma will require assessment of these epithelial abnormalities to identify phenotypic characteristics associated with predicting a clinical benefit for epithelial-directed therapies.
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Affiliation(s)
- Delphine Gras
- UMR INSERM U1067 CNRS 7333, Aix-Marseille University, Marseille, France
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