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Peter B, Rebeaud J, Vigne S, Bressoud V, Phillips N, Ruiz F, Petrova TV, Bernier-Latmani J, Pot C. Perivascular B cells link intestinal angiogenesis to immunity and to the gut-brain axis during neuroinflammation. J Autoimmun 2024; 148:103292. [PMID: 39067313 DOI: 10.1016/j.jaut.2024.103292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 06/28/2024] [Accepted: 07/15/2024] [Indexed: 07/30/2024]
Abstract
Disruption of gut barrier function and intestinal immune cell homeostasis are increasingly considered critical players in pathogenesis of extra-intestinal inflammatory diseases, including multiple sclerosis (MS) and its prototypical animal model, the experimental autoimmune encephalomyelitis (EAE). Breakdown of epithelial barriers increases intestinal permeability and systemic dissemination of microbiota-derived molecules. However, whether the gut-vascular barrier (GVB) is altered during EAE has not been reported. Here, we demonstrate that endothelial cell proliferation and vessel permeability increase before EAE clinical onset, leading to vascular remodeling and expansion of intestinal villi capillary bed during disease symptomatic phase in an antigen-independent manner. Concomitant to onset of angiogenesis observed prior to neurological symptoms, we identify an increase of intestinal perivascular immune cells characterized by the surface marker lymphatic vessel endothelial hyaluronic acid receptor 1 (LYVE-1). LYVE-1+ is expressed more frequently on B cells that show high levels of CD73 and have proangiogenic properties. B cell depletion was sufficient to mitigate enteric blood endothelial cell proliferation following immunization for EAE. In conclusion, we propose that altered intestinal vasculature driven by a specialized LYVE-1+ B cell subset promotes angiogenesis and that loss of GVB function is implicated in EAE development and autoimmunity.
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Affiliation(s)
- Benjamin Peter
- Laboratories of Neuroimmunology, Service of Neurology and Neuroscience Research Center, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Epalinges, 1066, Switzerland
| | - Jessica Rebeaud
- Laboratories of Neuroimmunology, Service of Neurology and Neuroscience Research Center, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Epalinges, 1066, Switzerland
| | - Solenne Vigne
- Laboratories of Neuroimmunology, Service of Neurology and Neuroscience Research Center, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Epalinges, 1066, Switzerland
| | - Valentine Bressoud
- Laboratories of Neuroimmunology, Service of Neurology and Neuroscience Research Center, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Epalinges, 1066, Switzerland
| | - Nicholas Phillips
- Laboratories of Neuroimmunology, Service of Neurology and Neuroscience Research Center, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Epalinges, 1066, Switzerland
| | - Florian Ruiz
- Laboratories of Neuroimmunology, Service of Neurology and Neuroscience Research Center, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Epalinges, 1066, Switzerland
| | - Tatiana V Petrova
- Department of Oncology, University of Lausanne and Ludwig Institute for Cancer Research, Epalinges, 1066, Switzerland
| | - Jeremiah Bernier-Latmani
- Department of Oncology, University of Lausanne and Ludwig Institute for Cancer Research, Epalinges, 1066, Switzerland
| | - Caroline Pot
- Laboratories of Neuroimmunology, Service of Neurology and Neuroscience Research Center, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Epalinges, 1066, Switzerland.
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Brody SL, Pan J, Huang T, Xu J, Xu H, Koenitizer J, Brennan SK, Nanjundappa R, Saba TG, Berical A, Hawkins FJ, Wang X, Zhang R, Mahjoub MR, Horani A, Dutcher SK. Loss of an extensive ciliary connectome induces proteostasis and cell fate switching in a severe motile ciliopathy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.20.585965. [PMID: 38562900 PMCID: PMC10983967 DOI: 10.1101/2024.03.20.585965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Motile cilia have essential cellular functions in development, reproduction, and homeostasis. Genetic causes for motile ciliopathies have been identified, but the consequences on cellular functions beyond impaired motility remain unknown. Variants in CCDC39 and CCDC40 cause severe disease not explained by loss of motility. Using human cells with pathological variants in these genes, Chlamydomonas genetics, cryo-electron microscopy, single cell RNA transcriptomics, and proteomics, we identified perturbations in multiple cilia-independent pathways. Absence of the axonemal CCDC39/CCDC40 heterodimer results in loss of a connectome of over 90 proteins. The undocked connectome activates cell quality control pathways, switches multiciliated cell fate, impairs microtubule architecture, and creates a defective periciliary barrier. Both cilia-dependent and independent defects are likely responsible for the disease severity. Our findings provide a foundation for reconsidering the broad cellular impact of pathologic variants in ciliopathies and suggest new directions for therapies.
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Affiliation(s)
- Steven L Brody
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Jiehong Pan
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Tao Huang
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Jian Xu
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Huihui Xu
- Department of Pediatrics, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Jeffrey Koenitizer
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Steven K Brennan
- Department of Pediatrics, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Rashmi Nanjundappa
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Thomas G Saba
- Department of Pediatrics, University of Michigan, Ann Arbor, MI, 48108, USA
| | - Andrew Berical
- Center for Regenerative Medicine, Boston University, Boston, MA, 02118, USA
| | - Finn J Hawkins
- Center for Regenerative Medicine, Boston University, Boston, MA, 02118, USA
| | - Xiangli Wang
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Rui Zhang
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Moe R Mahjoub
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, 63110, USA
- Department of Cell Biology and Physisology, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Amjad Horani
- Department of Pediatrics, University of Michigan, Ann Arbor, MI, 48108, USA
- Department of Cell Biology and Physisology, Washington University School of Medicine, Saint Louis, MO, 63110, USA
| | - Susan K Dutcher
- Department of Cell Biology and Physisology, Washington University School of Medicine, Saint Louis, MO, 63110, USA
- Department of Genetics, Washington University School of Medicine, Saint Louis, MO, 63110, USA
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3
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Clark G, Fitzgerald DA, Rubin BK. Cough medicines for children- time for a reality check. Paediatr Respir Rev 2023; 48:30-38. [PMID: 37718235 DOI: 10.1016/j.prrv.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 08/15/2023] [Indexed: 09/19/2023]
Abstract
Cough medicines have been in use for over a century to treat the common and troublesome, but often helpful, symptoms of cough in children. They contain various combinations of "anti-tussive" drugs including opioids, antihistamines, herbal preparations, mucolytics, decongestants and expectorants. Whilst theoretically attractive for symptom relief when children are suffering, as time has passed these popular over the counter medicines have been shown to lack efficacy, delay more serious underlying diagnoses, and can cause complications and sometimes death. This has resulted in clinician concerns, a citizen petition to the American Food and Drug Association in 2007, some self-regulation from manufacturers and escalating restrictions on their use from regulatory agencies across the world over the last twenty years. This article will review the protective role of cough, juxtapose the conflicting treatment goals of suppressing a dry cough and promoting expectoration for a wet cough, consider the evidence basis for prescribing cough medicines in comparison to other more specific treatments such as for asthma [beta agonists] or infection [antibiotics], regulatory interventions, and conclude with the view that over counter cough medicines should not be used in children, especially young children.
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Affiliation(s)
- Gene Clark
- Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Dominic A Fitzgerald
- Department of Respiratory Medicine, The Children's Hospital at Westmead, Sydney, NSW, Australia; Discipline of Paediatrics and Child Health, Faculty of Medicine, University of Sydney, NSW, Australia
| | - Bruce K Rubin
- Virginia Commonwealth University School of Medicine, Richmond, VA, USA; The Children's Hospital of Richmond at VCU, Richmond, VA, USA.
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4
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Chen F, Matsuda A, Budinger GRS, Sporn PHS, Casalino-Matsuda SM. Hypercapnia increases ACE2 expression and pseudo-SARS-CoV-2 entry in bronchial epithelial cells by augmenting cellular cholesterol. Front Immunol 2023; 14:1251120. [PMID: 37901225 PMCID: PMC10600497 DOI: 10.3389/fimmu.2023.1251120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/25/2023] [Indexed: 10/31/2023] Open
Abstract
Patients with chronic lung disease, obesity, and other co-morbid conditions are at increased risk of severe illness and death when infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Hypercapnia, the elevation of CO2 in blood and tissue, commonly occurs in patients with severe acute and chronic lung disease, including those with pulmonary infections, and is also associated with high mortality risk. We previously reported that hypercapnia increases viral replication and mortality of influenza A virus infection in mice. We have also shown that culture in elevated CO2 upregulates expression of cholesterol synthesis genes in primary human bronchial epithelial cells. Interestingly, factors that increase the cholesterol content of lipid rafts and lipid droplets, platforms for viral entry and assembly, enhance SARS-CoV-2 infection. In the current study, we investigated the effects of hypercapnia on ACE2 expression and entry of SARS-CoV-2 pseudovirus (p-SARS-CoV-2) into airway epithelial cells. We found that hypercapnia increased ACE2 expression and p-SARS-CoV-2 uptake by airway epithelium in mice, and in cultured VERO and human bronchial epithelial cells. Hypercapnia also increased total cellular and lipid raft-associated cholesterol in epithelial cells. Moreover, reducing cholesterol synthesis with inhibitors of sterol regulatory element binding protein 2 (SREBP2) or statins, and depletion of cellular cholesterol, each blocked the hypercapnia-induced increases in ACE2 expression and p-SARS-CoV-2 entry into epithelial cells. Cigarette smoke extract (CSE) also increased ACE2 expression, p-SARS-CoV-2 entry and cholesterol accumulation in epithelial cells, an effect not additive to that of hypercapnia, but also inhibited by statins. These findings reveal a mechanism that may account, in part, for poor clinical outcomes of SARS-CoV-2 infection in patients with advanced lung disease and hypercapnia, and in those who smoke cigarettes. Further, our results suggest the possibility that cholesterol-lowering therapies may be of particular benefit in patients with hypercapnia when exposed to or infected with SARS-CoV-2.
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Affiliation(s)
- Fei Chen
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Aiko Matsuda
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - G. R. Scott Budinger
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
- Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, IL, United States
| | - Peter H. S. Sporn
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
- Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, IL, United States
| | - S. Marina Casalino-Matsuda
- Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
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5
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Raby KL, Michaeloudes C, Tonkin J, Chung KF, Bhavsar PK. Mechanisms of airway epithelial injury and abnormal repair in asthma and COPD. Front Immunol 2023; 14:1201658. [PMID: 37520564 PMCID: PMC10374037 DOI: 10.3389/fimmu.2023.1201658] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/19/2023] [Indexed: 08/01/2023] Open
Abstract
The airway epithelium comprises of different cell types and acts as a physical barrier preventing pathogens, including inhaled particles and microbes, from entering the lungs. Goblet cells and submucosal glands produce mucus that traps pathogens, which are expelled from the respiratory tract by ciliated cells. Basal cells act as progenitor cells, differentiating into different epithelial cell types, to maintain homeostasis following injury. Adherens and tight junctions between cells maintain the epithelial barrier function and regulate the movement of molecules across it. In this review we discuss how abnormal epithelial structure and function, caused by chronic injury and abnormal repair, drives airway disease and specifically asthma and chronic obstructive pulmonary disease (COPD). In both diseases, inhaled allergens, pollutants and microbes disrupt junctional complexes and promote cell death, impairing the barrier function and leading to increased penetration of pathogens and a constant airway immune response. In asthma, the inflammatory response precipitates the epithelial injury and drives abnormal basal cell differentiation. This leads to reduced ciliated cells, goblet cell hyperplasia and increased epithelial mesenchymal transition, which contribute to impaired mucociliary clearance and airway remodelling. In COPD, chronic oxidative stress and inflammation trigger premature epithelial cell senescence, which contributes to loss of epithelial integrity and airway inflammation and remodelling. Increased numbers of basal cells showing deregulated differentiation, contributes to ciliary dysfunction and mucous hyperproduction in COPD airways. Defective antioxidant, antiviral and damage repair mechanisms, possibly due to genetic or epigenetic factors, may confer susceptibility to airway epithelial dysfunction in these diseases. The current evidence suggests that a constant cycle of injury and abnormal repair of the epithelium drives chronic airway inflammation and remodelling in asthma and COPD. Mechanistic understanding of injury susceptibility and damage response may lead to improved therapies for these diseases.
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Affiliation(s)
- Katie Louise Raby
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | | | - James Tonkin
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Department of Respiratory Medicine, Royal Brompton and Harefield Hospital, London, United Kingdom
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Department of Respiratory Medicine, Royal Brompton and Harefield Hospital, London, United Kingdom
| | - Pankaj Kumar Bhavsar
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Department of Respiratory Medicine, Royal Brompton and Harefield Hospital, London, United Kingdom
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6
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Despréaux P, Jeanton C, Desaulle D, Al Zallouha M, Verdin A, Momas I, Achard S. Innovative graph analysis method to assess gene expression modulation after fine particles exposures of 3D human airway epithelia. ENVIRONMENTAL RESEARCH 2023; 221:115296. [PMID: 36642119 DOI: 10.1016/j.envres.2023.115296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/27/2022] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Environmental particles have dramatic consequences for health, especially for the most vulnerable people, such as asthmatics. To better understand the impact on gene expression modulation of fine particles (PM2.5-0.3) from different emission sources, a 3D-airway model, a human bronchial epithelium (MucilAir-HF™) reconstructed from primary cells from healthy (EpiH) or asthmatic (EpiA) donors, was used. Repeated air-liquid exposures were performed, and epithelia were sacrificed to extract RNAs and assess gene expression. Data were analyzed according to the emission sources, physiological status, and exposure doses using a recent model consisting in a graph analysis on pairwise expression ratio. The results were compared with those from the classical ΔΔCt method. The graph analysis method proved to have better statistical properties than the classical ΔΔCt method and demonstrated that repeated PM2.5-0.3 exposures induced a dose-dependent up-regulation of the metabolic gene (CYP1B1) and a down-regulation of the inflammation gene (CXCL10). These modulations were greater for "industrial" than for "urban traffic" fine particles, and the effects were found to be greater after exposure of EpiA than EpiH, thus emphasizing the importance of the epithelium's physiological status in sensitivity to particles. Our study is original in terms of the experimental conditions and the graphical statistical analysis model established. The results highlight the importance of particle chemistry on the modulation of cellular and molecular responses, which may vary according to the individual's vulnerability.
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Affiliation(s)
- Philomène Despréaux
- Université Paris Cité, Faculté de Pharmacie, CRESS INSERM UMR 1153, équipe HERA (Health Environmental Risk Assessment), Paris, France
| | - Capucine Jeanton
- Université Paris Cité, Faculté de Pharmacie, CRESS INSERM UMR 1153, équipe HERA (Health Environmental Risk Assessment), Paris, France
| | - Dorota Desaulle
- Université Paris Cité, Faculté de Pharmacie, UR 7537 - BioSTM (Biostatistique, Traitement et Modélisation des données biologiques), Paris, France
| | - Margueritta Al Zallouha
- Université Paris Cité, Faculté de Pharmacie, CRESS INSERM UMR 1153, équipe HERA (Health Environmental Risk Assessment), Paris, France
| | - Anthony Verdin
- Université du Littoral Côte d'Opale, Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV) UR4492, SFR Condorcet CNRS 3417, Dunkerque, France
| | - Isabelle Momas
- Université Paris Cité, Faculté de Pharmacie, CRESS INSERM UMR 1153, équipe HERA (Health Environmental Risk Assessment), Paris, France
| | - Sophie Achard
- Université Paris Cité, Faculté de Pharmacie, CRESS INSERM UMR 1153, équipe HERA (Health Environmental Risk Assessment), Paris, France.
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7
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Prolonged Computer Use by Office Workers Induces Ocular Symptoms Associated With Tear Film Alterations and Overexpression of Mucin 5 AC and Catalase. J Occup Environ Med 2023; 65:34-38. [PMID: 35914288 DOI: 10.1097/jom.0000000000002653] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
OBJECTIVE The aim of the study was to evaluate office workers for symptoms of computer vision syndrome (CVS) and alterations in the tear film relate to the hours of daily computer use. METHODS Sixty-seven volunteers were divided into 2 groups: 2 to 6 and 7 to 12 hours of daily computer use. Computer vision syndrome symptoms, tear film stability by tear film break-up time test, and composition of mucin 5 AC, catalase, and IL-6 was assessed by relative gene expression of conjunctival impression cytology samples were examined. RESULTS All participants exhibited moderate symptoms of CVS, whereas 90% showed reduced tear film stability. For the 7- to 12-hour (vs 2- to 6-hour) group, these effects were more pronounced and overexpression of mucin 5 AC and catalase was detected. CONCLUSIONS Prolonged computer use induced an overexpression of mucin 5 AC and catalase and instability of the tear film, associated with ocular symptoms.
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8
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Wang M, Lou E, Xue Z. The role of bile acid in intestinal metaplasia. Front Physiol 2023; 14:1115250. [PMID: 36891144 PMCID: PMC9986488 DOI: 10.3389/fphys.2023.1115250] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 02/10/2023] [Indexed: 02/22/2023] Open
Abstract
A precancerous lesion of gastric cancer (GC), intestinal metaplasia (IM) is a pathological transformation of non-intestinal epithelium into an intestinal-like mucosa. It greatly raises the risk of developing the intestinal type of GC, which is frequently observed in the stomach and esophagus. It is understood that esophageal adenocarcinoma's precursor lesion, chronic gastroesophageal reflux disease (GERD), is what causes Barrett's esophagus (BE), an acquired condition. Recently, Bile acids (BAs), which are one of the compositions of gastric and duodenal contents, have been confirmed that it led to the occurrence and development of BE and gastric intestinal metaplasia (GIM). The objective of the current review is to discuss the mechanism of IM induced by bile acids. This review serves as a foundation for further research aimed at improving the way BE and GIM are currently managed.
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Affiliation(s)
- Menglei Wang
- Department of Digestive Diseases, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, China
| | - Enzhe Lou
- Department of Digestive Diseases, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, China
| | - Zengfu Xue
- Department of Digestive Diseases, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, China
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9
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Xiao S, Zhou Y, Gao H, Yang D. Dexmedetomidine attenuates airway inflammation and oxidative stress in asthma via the Nrf2 signaling pathway. Mol Med Rep 2022; 27:2. [PMID: 36321783 PMCID: PMC9673067 DOI: 10.3892/mmr.2022.12889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 10/11/2022] [Indexed: 12/03/2022] Open
Abstract
Allergic asthma is a chronic inflammatory disease in which oxidative stress serves a pivotal role. In clinical practice, dexmedetomidine (DEX), an α‑2‑adrenergic receptor agonist, is used as a sedative. DEX exhibits antioxidative and organ‑protective properties. In a murine model of asthma, DEX has a therapeutic effect via the toll like receptor 4/NF‑кB signaling pathway; however, whether DEX can exert an antioxidative effect on asthma has yet to be elucidated. In the present study, a T helper (Th)2‑dominant murine asthma model was established. DEX treatment significantly reduced eosinophilic airway inflammation, mucus overproduction and airway hyperresponsiveness, as well as the concentrations of Th2 cytokines. The lung tissues of mice with asthma were characterized by redox imbalance (increased oxidative stress and impaired antioxidant capacity). DEX treatment alleviated this imbalance by decreasing the levels of malondialdehyde and reactive oxygen species, and increasing the levels of glutathione. Furthermore, the nuclear factor erythroid 2‑related factor 2 (Nrf2) signaling pathway was inhibited in the lung tissues of asthmatic mice; these effects were noted in its downstream genes, heme oxygenase 1 and glutathione peroxidase 4. In mice with asthma, DEX treatment induced the expression of these antioxidant genes and the activation of Nrf2, whereas ML385 (an inhibitor of Nrf2) partially abrogated the antioxidative and therapeutic effects of DEX. To the best of our knowledge, the present study is the first to demonstrate the protective effect of DEX on Th2‑dominant asthma through the activation of the Nrf2 signaling pathway. The results suggested that the antioxidative properties of DEX could be beneficial in clinical application of DEX for the relief of asthmatic symptoms.
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Affiliation(s)
- Shilin Xiao
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100144, P.R. China
| | - Ying Zhou
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100144, P.R. China
| | - Huibin Gao
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100144, P.R. China
| | - Dong Yang
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100144, P.R. China,Correspondence to: Professor Dong Yang, Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33 Badachu Road, Shijingshan, Beijing 100144, P.R. China, E-mail:
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10
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Boateng E, Kovacevic D, Oldenburg V, Rådinger M, Krauss-Etschmann S. Role of airway epithelial cell miRNAs in asthma. FRONTIERS IN ALLERGY 2022; 3:962693. [PMID: 36203653 PMCID: PMC9530201 DOI: 10.3389/falgy.2022.962693] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 09/01/2022] [Indexed: 12/07/2022] Open
Abstract
The airway epithelial cells and overlying layer of mucus are the first point of contact for particles entering the lung. The severity of environmental contributions to pulmonary disease initiation, progression, and exacerbation is largely determined by engagement with the airway epithelium. Despite the cellular cross-talk and cargo exchange in the microenvironment, epithelial cells produce miRNAs associated with the regulation of airway features in asthma. In line with this, there is evidence indicating miRNA alterations related to their multifunctional regulation of asthma features in the conducting airways. In this review, we discuss the cellular components and functions of the airway epithelium in asthma, miRNAs derived from epithelial cells in disease pathogenesis, and the cellular exchange of miRNA-bearing cargo in the airways.
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Affiliation(s)
- Eistine Boateng
- Early Life Origins of Chronic Lung Disease, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
- Correspondence: Eistine Boateng
| | - Draginja Kovacevic
- DZL Laboratory for Experimental Microbiome Research, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
| | - Vladimira Oldenburg
- Early Life Origins of Chronic Lung Disease, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
| | - Madeleine Rådinger
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Susanne Krauss-Etschmann
- Early Life Origins of Chronic Lung Disease, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
- DZL Laboratory for Experimental Microbiome Research, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany
- Institute for Experimental Medicine, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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11
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Bazan-Socha S, Wójcik K, Olchawa M, Sarna T, Pięta J, Jakieła B, Soja J, Okoń K, Zarychta J, Zaręba L, Stojak M, Potaczek DP, Bazan JG, Celińska-Lowenhoff M. Increased Oxidative Stress in Asthma-Relation to Inflammatory Blood and Lung Biomarkers and Airway Remodeling Indices. Biomedicines 2022; 10:1499. [PMID: 35884804 PMCID: PMC9312921 DOI: 10.3390/biomedicines10071499] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 11/17/2022] Open
Abstract
Airway inflammation in asthma is related to increased reactive oxygen species generation, potentially leading to tissue injury and subsequent airway remodeling. We evaluated oxidative stress in peripheral blood from asthmatic subjects (n = 74) and matched controls (n = 65), using recently developed real-time monitoring of the protein hydroperoxide (HP) formation by the coumarin boronic acid (CBA) assay. We also investigated the relation of the systemic oxidative stress response in asthma to disease severity, lung function, airway remodeling indices (lung computed tomography and histology), and blood and bronchoalveolar lavage fluid (BAL) inflammatory biomarkers. We documented enhanced systemic oxidative stress in asthma, reflected by 35% faster and 58% higher cumulative fluorescent product generation in the CBA assay (p < 0.001 for both). The dynamics of HP generation correlated inversely with lung function but not with asthma severity or histological measures of airway remodeling. HP generation was associated positively with inflammatory indices in the blood (e.g., C-reactive protein) and BAL (e.g., interleukin [IL]-6, IL-12p70, and neutrophil count). Bronchial obstruction, thicker airway walls, increased BAL IL-6, and citrullinated histone 3 in systemic circulation independently determined increased HP formation. In conclusion, a real-time CBA assay showed increased systemic HP generation in asthma. In addition, it was associated with inflammatory biomarkers, suggesting that proper disease control can also lead to a decrease in oxidative stress.
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Affiliation(s)
- Stanisława Bazan-Socha
- Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawinska 8, 31-066 Krakow, Poland; (K.W.); (B.J.); (J.S.); (J.Z.); (M.C.-L.)
| | - Krzysztof Wójcik
- Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawinska 8, 31-066 Krakow, Poland; (K.W.); (B.J.); (J.S.); (J.Z.); (M.C.-L.)
| | - Magdalena Olchawa
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland; (M.O.); (T.S.)
| | - Tadeusz Sarna
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland; (M.O.); (T.S.)
| | - Jakub Pięta
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland;
| | - Bogdan Jakieła
- Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawinska 8, 31-066 Krakow, Poland; (K.W.); (B.J.); (J.S.); (J.Z.); (M.C.-L.)
| | - Jerzy Soja
- Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawinska 8, 31-066 Krakow, Poland; (K.W.); (B.J.); (J.S.); (J.Z.); (M.C.-L.)
| | - Krzysztof Okoń
- Department of Pathology, Faculty of Medicine, Jagiellonian University Medical College, Grzegorzecka 16, 31-531 Krakow, Poland;
| | - Jacek Zarychta
- Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawinska 8, 31-066 Krakow, Poland; (K.W.); (B.J.); (J.S.); (J.Z.); (M.C.-L.)
- Pulmonary Hospital, Gladkie 1, 34-500 Zakopane, Poland
| | - Lech Zaręba
- Institute of Computer Science, College of Natural Sciences, University of Rzeszow, Pigonia 1, 35-310 Rzeszow, Poland; (L.Z.); (J.G.B.)
| | - Michał Stojak
- Department of Plant Product Technology and Nutrition Hygiene, Faculty of Food Technology, University of Agriculture in Krakow, Balicka 122, 30-149 Krakow, Poland;
| | - Daniel P. Potaczek
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, Philipps-University Marburg, 35043 Marburg, Germany;
| | - Jan G. Bazan
- Institute of Computer Science, College of Natural Sciences, University of Rzeszow, Pigonia 1, 35-310 Rzeszow, Poland; (L.Z.); (J.G.B.)
| | - Magdalena Celińska-Lowenhoff
- Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawinska 8, 31-066 Krakow, Poland; (K.W.); (B.J.); (J.S.); (J.Z.); (M.C.-L.)
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Ma Y, Gu Y, Zhang X, Gu W, Wang T, Sun H, Dai Y, Yan Y, Wang Y, Wang M, Sun H, Hao C, Fan L, Chen Z. High Expression of MUC5AC, MUC5B, and Layilin Plays an Essential Role in Prediction in the Development of Plastic Bronchitis Caused by MPP. Front Microbiol 2022; 13:911228. [PMID: 35770160 PMCID: PMC9234514 DOI: 10.3389/fmicb.2022.911228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 04/25/2022] [Indexed: 11/22/2022] Open
Abstract
Plastic bronchitis (PB) is a rare respiratory condition which can result in severe respiratory complications such as respiratory failure and death. Mycoplasma pneumoniae infection is a main etiology cause of plastic bronchitis. However, the pathogenesis of plastic bronchitis complicated by Mycoplasma pneumoniae pneumonia (MPP) has not yet been fully elucidated. Our article aims to explore biomarkers for early prediction of MPP cases complicated with plastic bronchitis. We utilized a protein chip to screen for significantly different proteins among the groups of healthy, general Mycoplasma pneumoniae pneumonia (GMPP) and refractory Mycoplasma pneumoniae pneumonia (RMPP) patients, where layilin exhibited a potent change across biology information technology. Next, we demonstrated the high expression of MUC5AC, MUC5B, and layilin in bronchoalveolar lavage fluid (BALF) of MPP cases complicated with plastic bronchitis. Further study suggested that the level of layilin had a positive correlation with both MUC5AC and MUC5B. A receiver operating characteristic (ROC) analysis was performed to assess the diagnostic values of MUC5AC, MUC5B, and layilin in MPP cases with PB. Data show that the three indicators have similar diagnostic ability for MPP children with plastic bronchitis. Then, we used different concentrations of community-acquired respiratory distress syndrome (CARDS) toxin or lipid-associated membrane proteins (LAMPs) to simulate an in vitro experiment. The in vitro assay revealed that CARDS toxin or LAMPs induced A549 cells to secrete MUC5AC, MUC5B, layilin, and proinflammatory factors. These findings suggest that MUC5AC, MUC5B, and layilin are correlated with MPP. The high expression of MUC5AC, MUC5B, and layilin play an essential role in prediction in the development of plastic bronchitis caused by MPP. The high expression of MUC5AC, MUC5B, and layilin may be relevant to the severity of illness.
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Affiliation(s)
- Yu Ma
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Yeqi Gu
- Department of Pediatrics, Changzhou Wujin People's Hospital, Changzhou, China
| | - Xinxing Zhang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Wenjing Gu
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Ting Wang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Huiming Sun
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Yinfang Dai
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Yongdong Yan
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Yuqing Wang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Meijuan Wang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Huiquan Sun
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Chuangli Hao
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
| | - Liping Fan
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
- Liping Fan
| | - Zhengrong Chen
- Department of Respiratory Medicine, Children's Hospital of Soochow University, Suzhou, China
- *Correspondence: Zhengrong Chen
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13
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Tang L, Zhong X, Gong H, Tuerxun M, Ma T, Ren J, Xie C, Zheng A, Abudureheman Z, Abudukadeer A, Aini P, Yilamujiang S, Li L. Analysis of the association of ANO3/MUC15, COL4A4, RRBP1, and KLK1 polymorphisms with COPD susceptibility in the Kashi population. BMC Pulm Med 2022; 22:178. [PMID: 35513865 PMCID: PMC9074245 DOI: 10.1186/s12890-022-01975-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 04/26/2022] [Indexed: 11/10/2022] Open
Abstract
Objective Chronic obstructive pulmonary disease (COPD) is a complex, multifactorial, polygenic disease. The rate of occurrence of COPD in the Kashi population (Uyghur) is significantly higher than that observed nationwide. The identification of COPD-related genes in the Chinese Uyghur population could provide useful insights that could help us understand this phenomenon. Our previous whole-exome sequencing study of three Uyghur families with COPD demonstrated that 72 mutations in 55 genes might be associated with COPD; these included rs15783G > A in the anoctamin 3 (ANO3) gene/mucin 15 (MUC15) gene, rs1800517G > A in the collagen type IV alpha 4 chain (COL4A4) gene, rs11960G > A in the ribosome binding protein 1 (RRBP1) gene, and rs5516C > G in the kallikrein 1 (KLK1) gene. This case–control study aimed to further validate the association of the four mutations with COPD in the Chinese Uyghur population. Methods Sanger sequencing was used for the genotyping of four polymorphisms (ANO3/MUC15 rs15783, COL4A4 rs1800517, RRBP1 rs11960, and KLK1 rs5516) in 541 unrelated Uyghur COPD patients and 534 Uyghur healthy controls. We then conducted stratified analyses based on the smoking status and airflow limitation severity, to explore the correlation between selected gene polymorphisms and COPD. Results ANO3/MUC15 rs15783 and KLK1 rs5516 polymorphisms could significantly reduce COPD risk (p < 0.05), but COL4A4 rs1800517 and RRBP1 rs11960 polymorphisms were not correlated with COPD in the entire population. In a stratified analysis of smoking status, non-smokers with the ANO3/MUC15 rs15783G/G genotype (OR = 0.63, p = 0.032) or COL4A4 rs1800517 allele G (OR = 0.80, p = 0.023) had a reduced risk of COPD. Smokers with the RRBP1 rs11960A/G genotype had a lower risk of COPD (OR = 0.41, p = 0.025). The KLK1 rs5516G > C polymorphism was associated with a decreased risk of COPD (OR < 1, p < 0.05), irrespective of the smoking status of individuals. No significant association with COPD severity was observed in individuals with these four polymorphisms (p > 0.05). Conclusion We identified four previously unreported mutations (ANO3/MUC15 rs15783, COL4A4 rs1800517, RRBP1 rs11960, and KLK1 rs5516) that might decrease the COPD risk in individuals with different smoking statuses in the Chinese Uyghur population. Our findings provide new light for the genetic risk factors associated with the occurrence of COPD. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-01975-3.
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Affiliation(s)
- Lifeng Tang
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Xuemei Zhong
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Hui Gong
- Clinical Research Center of Infectious Diseases (Pulmonary Tuberculosis), First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Maimaitiaili Tuerxun
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Tao Ma
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Jie Ren
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Chengxin Xie
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Aifang Zheng
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Zulipikaer Abudureheman
- Clinical Research Center of Infectious Diseases (Pulmonary Tuberculosis), First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Ayiguzali Abudukadeer
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Paierda Aini
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Subinuer Yilamujiang
- Clinical Research Center of Infectious Diseases (Pulmonary Tuberculosis), First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China
| | - Li Li
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China. .,Clinical Research Center of Infectious Diseases (Pulmonary Tuberculosis), First People's Hospital of Kashi, Kashi, 844000, Xinjiang, People's Republic of China.
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Rivas F, Erxleben D, Smith I, Rahbar E, DeAngelis PL, Cowman MK, Hall AR. Methods for isolating and analyzing physiological hyaluronan: a review. Am J Physiol Cell Physiol 2022; 322:C674-C687. [PMID: 35196167 PMCID: PMC8977137 DOI: 10.1152/ajpcell.00019.2022] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/22/2022] [Accepted: 02/22/2022] [Indexed: 01/01/2023]
Abstract
The carbohydrate hyaluronan (or hyaluronic acid, HA) is found in all human tissues and biofluids where it has wide-ranging functions in health and disease that are dictated by both its abundance and size. Consequently, hyaluronan evaluation in physiological samples has significant translational potential. Although the analytical tools and techniques for probing other biomolecules such as proteins and nucleic acids have become standard approaches in biochemistry, those available for investigating hyaluronan are less well established. In this review, we survey methods related to the assessment of native hyaluronan in biological specimens, including protocols for separating it from biological matrices and technologies for determining its concentration and molecular weight.
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Affiliation(s)
- Felipe Rivas
- Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Dorothea Erxleben
- Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Ian Smith
- Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Elaheh Rahbar
- Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Paul L DeAngelis
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Mary K Cowman
- Department of Biomedical Engineering, New York University Tandon School of Engineering, New York, New York
- Department of Orthopedic Surgery, New York University Grossman School of Medicine, New York, New York
| | - Adam R Hall
- Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
- Comprehensive Cancer Center, Wake Forest School of Medicine, Winston-Salem, North Carolina
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Qiu Z, Yan L, Xu J, Qian X. Club Cell Secretion Protein 16 (CC16) Improve Chronic Obstructive Pulmonary Disease In Vivo Study. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.2907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Purpose: The purpose of this study was to evaluate CC16 in COPD treatment and relative mechanism by vivo study. Materials and methods: The mice were divided into Normal, Model and CC16 groups. Measuring Pathology and goblet cell number by HE or AB/PAS staining; Evaluating
apoptosis cell number by TUNEL assay; using flow separation to analysis inflammatory cells in difference groups; MAPK and NF-κB(p65) protein expression were evaluated by IHC assay in tissues; Total protein concentration of MUC5AC, CC16, Bax and Bcl-2 were evaluated by Western
Blot (WB) assay. Results: Compared with Normal group, the pathology was deteriorate and goblet cell number were significantly up-regulation in Model group, apoptosis goblet cell number were significantly depressed (P < 0.001), lympbocyte rate and hypertrophic rate were significantly
down-regulation and Eosinophils rate, Macrophage rate and Neutrophils rate were significantly up-regulation (P < 0.001, respectively) in Model group. By IHC assay, MAPK and NF-κB(p65) proteins expression were significantly increased (P < 0.001, respectively)
in Model group; by WB assay, MUC5AC and Bcl-2 protein expression were significantly up-regulation and CC16 and Bax proteins expression were significantly down-regulation (P < 0.001, respectively) in Model group. CC16 supplement, the COPD were significantly improved with relative
inflammatory cells rates significantly improving and relative proteins improving. Conclusion: CC16 could improve COPD by inducing goblet cell apoptosis increasing via regulation MAPK/NF-κB(p65) pathway In Vivo study.
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Affiliation(s)
- Zhihong Qiu
- School of Medicine, Yichun University, Yichun, Jiangxi Province, 336000, China
| | - Li Yan
- School of Medicine, Yichun University, Yichun, Jiangxi Province, 336000, China
| | - Juan Xu
- School of Medicine, Yichun University, Yichun, Jiangxi Province, 336000, China
| | - Xiaojun Qian
- Department of Pulmonary and Critical Care Medicine, YiChun People’s Hospital, Yichun, Jiangxi Province, 336000, China
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16
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Tassew D, Fort S, Mebratu Y, McDonald J, Chu HW, Petersen H, Tesfaigzi Y. Effects of Wood Smoke Constituents on Mucin Gene Expression in Mice and Human Airway Epithelial Cells and on Nasal Epithelia of Subjects with a Susceptibility Gene Variant in Tp53. ENVIRONMENTAL HEALTH PERSPECTIVES 2022; 130:17010. [PMID: 35072516 PMCID: PMC8785869 DOI: 10.1289/ehp9446] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 12/07/2021] [Accepted: 12/20/2021] [Indexed: 05/05/2023]
Abstract
BACKGROUND Exposure to wood smoke (WS) increases the risk for chronic bronchitis more than exposure to cigarette smoke (CS), but the underlying mechanisms are unclear. OBJECTIVE The effect of WS and CS on mucous cell hyperplasia in mice and in human primary airway epithelial cells (AECs) was compared with replicate the findings in human cohorts. Responsible WS constituents were identified to better delineate the pathway involved, and the role of a tumor protein p53 (Tp53) gene polymorphism was investigated. METHODS Mice and primary human AECs were exposed to WS or CS and the signaling receptor and pathway were identified using short hairpin structures, small molecule inhibitors, and Western analyses. Mass spectrometric analysis was used to identify active WS constituents. The role of a gene variant in Tp53 that modifies proline to arginine was examined using nasal brushings from study participants in the Lovelace Smokers Cohort, primary human AECs, and mice with a modified Tp53 gene. RESULTS WS at 25-fold lower concentration than CS increased mucin expression more efficiently in mice and in human AECs in a p53 pathway-dependent manner. Study participants who were homozygous for p53 arginine compared with the proline variant showed higher mucin 5AC (MUC5AC) mRNA levels in nasal brushings if they reported WS exposure. The WS constituent, oxalate, increased MUC5AC levels similar to the whole WS extract, especially in primary human AECs homozygous for p53 arginine, and in mice with a modified Tp53 gene. Further, the anion exchange protein, SLC26A9, when reduced, enhanced WS- and oxalate-induced mucin expression. DISCUSSION The potency of WS compared with CS in inducing mucin expression may explain the increased risk for chronic bronchitis in participants exposed to WS. Identification of the responsible compounds could help estimate the risk of pollutants in causing chronic bronchitis in susceptible individuals and provide strategies to improve management of lung diseases. https://doi.org/10.1289/EHP9446.
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Affiliation(s)
- Dereje Tassew
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Susan Fort
- Chronic Obstructive Pulmonary Disease Program, Lovelace Biomedical Research Institute, Albuquerque, New Mexico, USA
| | - Yohannes Mebratu
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jacob McDonald
- Applied Sciences, Lovelace Biomedical Research Institute, Albuquerque, New Mexico, USA
| | - Hong Wei Chu
- Department of Medicine, National Jewish Health, Denver, Colorado, USA
| | - Hans Petersen
- Chronic Obstructive Pulmonary Disease Program, Lovelace Biomedical Research Institute, Albuquerque, New Mexico, USA
| | - Yohannes Tesfaigzi
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Li X, Zhao F, Wang A, Cheng P, Chen H. Role and mechanisms of autophagy in lung metabolism and repair. Cell Mol Life Sci 2021; 78:5051-5068. [PMID: 33864479 PMCID: PMC11072280 DOI: 10.1007/s00018-021-03841-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 03/23/2021] [Accepted: 04/09/2021] [Indexed: 02/05/2023]
Abstract
Mammalian lungs are metabolically active organs that frequently encounter environmental insults. Stress responses elicit protective autophagy in epithelial barrier cells and the supportive niche. Autophagy promotes the recycling of damaged intracellular organelles, denatured proteins, and other biological macromolecules for reuse as components required for lung cell survival. Autophagy, usually induced by metabolic defects, regulates cellular metabolism. Autophagy is a major adaptive response that protects cells and organisms from injury. Endogenous region-specific stem/progenitor cell populations are found in lung tissue, which are responsible for epithelial repair after lung damage. Additionally, glucose and fatty acid metabolism is altered in lung stem/progenitor cells in response to injury-related lung fibrosis. Autophagy deregulation has been observed to be involved in the development and progression of other respiratory diseases. This review explores the role and mechanisms of autophagy in regulating lung metabolism and epithelial repair.
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Affiliation(s)
- Xue Li
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China
| | - Fuxiaonan Zhao
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China
| | - An Wang
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China
| | - Peiyong Cheng
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China
| | - Huaiyong Chen
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China.
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China.
- Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese Medicine, Tianjin Institute of Respiratory Diseases, Tianjin, China.
- Tianjin Key Laboratory of Lung Regenerative Medicine, Haihe Hospital, Tianjin University, Tianjin, China.
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18
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Ma JX, Xiao X, Zhou KF, Huang G, Ao B, Zhang Y, Gao WJ, Lei T, Yang L, Fan XC, Li WH. Herb pair of Ephedrae Herba-Armeniacae Semen Amarum alleviates airway injury in asthmatic rats. JOURNAL OF ETHNOPHARMACOLOGY 2021; 269:113745. [PMID: 33359859 DOI: 10.1016/j.jep.2020.113745] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 10/28/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ephedrae Herba (EH, Ephedra sinica Stapf.) and Armeniacae Semen Amarum (ASA, Prunus armeniaca L. var. ansu Maxim.) have been used to treat asthma, cold, fever, and cough in China for thousands of years. AIM OF THE STUDY In this study, we aimed to investigate the optimal ratio of EH and ASA compatibility (EAC) to reduce airway injury in asthmatic rats and its possible mechanism. METHODS Rats were sensitized with a mixture of acetylcholine chloride and histamine bisphosphate 1 h before sensitization by intragastric administration of EAC or dexamethasone or saline for 7 days. Subsequently, the ultrastructure of rat airway epithelial tissue changes, apoptosis of the airway epithelial cells, and the expression of mRNA and protein of EGRF and Bcl-2 were detected. RESULTS Transmission electron microscope: EAC (groups C and E) had the most prominent effect on repairing airway epithelial cells' ultrastructural changes in asthmatic rats. TUNEL: dexamethasone and EAC (groups B、C、E and F) inhibited the apoptosis of airway epithelial cells in asthmatic rats (P < 0.05). In situ hybridization: EAC (group E) inhibited the overexpression of EGFR and Bcl-2 mRNA (P < 0.05).Western Blotting: EAC (groups A、B、C、E and F) inhibited the upregulation of airway epithelial EGFR and Bcl-2 protein expression (P < 0.01). CONCLUSIONS Our findings indicate that EAC can inhibit abnormal changes in airway epithelial structure and apoptosis of airway epithelial cells, thereby alleviating airway injury. In this study, the best combination of EH and ASA to alleviate airway epithelial injury in asthmatic rats was group E (EH: ASA = 8: 4.5).
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Affiliation(s)
- Jia-Xin Ma
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Xiong Xiao
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Kai-Fang Zhou
- School of Pharmacy, Sanquan Medical College, Xinxiang, Henan, 453003, China
| | - Gang Huang
- School of Pharmacy, Quanzhou Medical College, Quanzhou, Fujian, 362010, China
| | - Bo Ao
- Department of Pharmacy, CITIC Huizhou Hospital, Huizhou, Guangdong, 516006, China
| | - Ying Zhang
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Wen-Jun Gao
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Ting Lei
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Li Yang
- Department of Pharmacy, The Ninth Hospital of Nanchang, Nanchang, Jiangxi, 330002, China
| | - Xue-Cheng Fan
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China
| | - Wen-Hong Li
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, 330004, China.
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19
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Liu G, Philp AM, Corte T, Travis MA, Schilter H, Hansbro NG, Burns CJ, Eapen MS, Sohal SS, Burgess JK, Hansbro PM. Therapeutic targets in lung tissue remodelling and fibrosis. Pharmacol Ther 2021; 225:107839. [PMID: 33774068 DOI: 10.1016/j.pharmthera.2021.107839] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 03/03/2021] [Indexed: 02/07/2023]
Abstract
Structural changes involving tissue remodelling and fibrosis are major features of many pulmonary diseases, including asthma, chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF). Abnormal deposition of extracellular matrix (ECM) proteins is a key factor in the development of tissue remodelling that results in symptoms and impaired lung function in these diseases. Tissue remodelling in the lungs is complex and differs between compartments. Some pathways are common but tissue remodelling around the airways and in the parenchyma have different morphologies. Hence it is critical to evaluate both common fibrotic pathways and those that are specific to different compartments; thereby expanding the understanding of the pathogenesis of fibrosis and remodelling in the airways and parenchyma in asthma, COPD and IPF with a view to developing therapeutic strategies for each. Here we review the current understanding of remodelling features and underlying mechanisms in these major respiratory diseases. The differences and similarities of remodelling are used to highlight potential common therapeutic targets and strategies. One central pathway in remodelling processes involves transforming growth factor (TGF)-β induced fibroblast activation and myofibroblast differentiation that increases ECM production. The current treatments and clinical trials targeting remodelling are described, as well as potential future directions. These endeavours are indicative of the renewed effort and optimism for drug discovery targeting tissue remodelling and fibrosis.
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Affiliation(s)
- Gang Liu
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Sydney, NSW, Australia
| | - Ashleigh M Philp
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Sydney, NSW, Australia; St Vincent's Medical School, UNSW Medicine, UNSW, Sydney, NSW, Australia
| | - Tamera Corte
- Royal Prince Alfred Hospital, Camperdown, NSW, Australia; Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Mark A Travis
- The Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Sciences Centre and Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester, United Kingdom
| | - Heidi Schilter
- Pharmaxis Ltd, 20 Rodborough Road, Frenchs Forest, Sydney, NSW, Australia
| | - Nicole G Hansbro
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Sydney, NSW, Australia
| | - Chris J Burns
- Walter and Eliza Hall Institute of Medical Research, Department of Medical Biology, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Mathew S Eapen
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, University of Tasmania, Launceston, TAS, Australia
| | - Sukhwinder S Sohal
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, University of Tasmania, Launceston, TAS, Australia
| | - Janette K Burgess
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Department of Pathology and Medical Biology, Groningen, The Netherlands; Woolcock Institute of Medical Research, Discipline of Pharmacology, The University of Sydney, Sydney, NSW, Australia
| | - Philip M Hansbro
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Sydney, NSW, Australia.
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20
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Pathophysiology of Lung Disease and Wound Repair in Cystic Fibrosis. PATHOPHYSIOLOGY 2021; 28:155-188. [PMID: 35366275 PMCID: PMC8830450 DOI: 10.3390/pathophysiology28010011] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 12/11/2022] Open
Abstract
Cystic fibrosis (CF) is an autosomal recessive, life-threatening condition affecting many organs and tissues, the lung disease being the chief cause of morbidity and mortality. Mutations affecting the CF Transmembrane Conductance Regulator (CFTR) gene determine the expression of a dysfunctional protein that, in turn, triggers a pathophysiological cascade, leading to airway epithelium injury and remodeling. In vitro and in vivo studies point to a dysregulated regeneration and wound repair in CF airways, to be traced back to epithelial CFTR lack/dysfunction. Subsequent altered ion/fluid fluxes and/or signaling result in reduced cell migration and proliferation. Furthermore, the epithelial-mesenchymal transition appears to be partially triggered in CF, contributing to wound closure alteration. Finally, we pose our attention to diverse approaches to tackle this defect, discussing the therapeutic role of protease inhibitors, CFTR modulators and mesenchymal stem cells. Although the pathophysiology of wound repair in CF has been disclosed in some mechanisms, further studies are warranted to understand the cellular and molecular events in more details and to better address therapeutic interventions.
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21
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Invernizzi R, Lloyd CM, Molyneaux PL. Respiratory microbiome and epithelial interactions shape immunity in the lungs. Immunology 2020; 160:171-182. [PMID: 32196653 PMCID: PMC7218407 DOI: 10.1111/imm.13195] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/17/2020] [Accepted: 02/17/2020] [Indexed: 12/11/2022] Open
Abstract
The airway epithelium represents a physical barrier to the external environment acting as the first line of defence against potentially harmful environmental stimuli including microbes and allergens. However, lung epithelial cells are increasingly recognized as active effectors of microbial defence, contributing to both innate and adaptive immune function in the lower respiratory tract. These cells express an ample repertoire of pattern recognition receptors with specificity for conserved microbial and host motifs. Modern molecular techniques have uncovered the complexity of the lower respiratory tract microbiome. The interaction between the microbiota and the airway epithelium is key to understanding how stable immune homeostasis is maintained. Loss of epithelial integrity following exposure to infection can result in the onset of inflammation in susceptible individuals and may culminate in lung disease. Here we discuss the current knowledge regarding the molecular and cellular mechanisms by which the pulmonary epithelium interacts with the lung microbiome in shaping immunity in the lung. Specifically, we focus on the interactions between the lung microbiome and the cells of the conducting airways in modulating immune cell regulation, and how defects in barrier structure and function may culminate in lung disease. Understanding these interactions is fundamental in the search for more effective therapies for respiratory diseases.
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Affiliation(s)
- Rachele Invernizzi
- Inflammation, Repair and Development SectionNational Heart and Lung InstituteImperial CollegeLondonUK
| | - Clare M. Lloyd
- Inflammation, Repair and Development SectionNational Heart and Lung InstituteImperial CollegeLondonUK
| | - Philip L. Molyneaux
- Inflammation, Repair and Development SectionNational Heart and Lung InstituteImperial CollegeLondonUK
- Department of Respiratory MedicineInterstitial Lung Disease UnitRoyal Brompton HospitalLondonUK
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22
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Feldman MB, Wood M, Lapey A, Mou H. SMAD Signaling Restricts Mucous Cell Differentiation in Human Airway Epithelium. Am J Respir Cell Mol Biol 2020; 61:322-331. [PMID: 30848657 DOI: 10.1165/rcmb.2018-0326oc] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mucin-secreting goblet cell metaplasia and hyperplasia (GCMH) is a common pathological phenotype in many human respiratory diseases, including asthma, chronic obstructive pulmonary disease, cystic fibrosis, primary ciliary dyskinesia, and infections. A better understanding of how goblet cell quantities or proportions in the airway epithelium are regulated may provide novel therapeutic targets to mitigate GCMH in these devastating diseases. We identify canonical SMAD signaling as the principal pathway restricting goblet cell differentiation in human airway epithelium. Differentiated goblet cells express low levels of phosphorylated SMAD. Accordingly, inhibition of SMAD signaling markedly amplifies GCMH induced by mucous mediators. In contrast, SMAD signaling activation impedes goblet cell generation and accelerates the resolution of preexisting GCMH. SMAD signaling inhibition can override the suppressive effects imposed by a GABAergic receptor inhibitor, suggesting the GABAergic pathway likely operates through inhibition of SMAD signaling in regulating mucous differentiation. Collectively, our data demonstrate that SMAD signaling plays a determining role in mucous cell differentiation, and thus raise the possibility that dysregulation of this pathway contributes to respiratory pathophysiology during airway inflammation and pulmonary diseases. In addition, our study also highlights the potential for SMAD modulation as a therapeutic target in mitigating GCMH.
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Affiliation(s)
- Michael B Feldman
- Division of Pulmonary and Critical Care Medicine and.,Harvard Medical School, Boston, Massachusetts
| | - Michael Wood
- the Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Allen Lapey
- Division of Pediatric Pulmonary Medicine, Massachusetts General Hospital for Children, Boston, Massachusetts; and
| | - Hongmei Mou
- the Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, Massachusetts.,Division of Pediatric Pulmonary Medicine, Massachusetts General Hospital for Children, Boston, Massachusetts; and.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
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23
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Markovetz MR, Subramani DB, Kissner WJ, Morrison CB, Garbarine IC, Ghio A, Ramsey KA, Arora H, Kumar P, Nix DB, Kumagai T, Krunkosky TM, Krause DC, Radicioni G, Alexis NE, Kesimer M, Tiemeyer M, Boucher RC, Ehre C, Hill DB. Endotracheal tube mucus as a source of airway mucus for rheological study. Am J Physiol Lung Cell Mol Physiol 2019; 317:L498-L509. [PMID: 31389736 DOI: 10.1152/ajplung.00238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
Muco-obstructive lung diseases (MOLDs), like cystic fibrosis and chronic obstructive pulmonary disease, affect a spectrum of subjects globally. In MOLDs, the airway mucus becomes hyperconcentrated, increasing osmotic and viscoelastic moduli and impairing mucus clearance. MOLD research requires relevant sources of healthy airway mucus for experimental manipulation and analysis. Mucus collected from endotracheal tubes (ETT) may represent such a source with benefits, e.g., in vivo production, over canonical sample types such as sputum or human bronchial epithelial (HBE) mucus. Ionic and biochemical compositions of ETT mucus from healthy human subjects were characterized and a stock of pooled ETT samples generated. Pooled ETT mucus exhibited concentration-dependent rheologic properties that agreed across spatial scales with reported individual ETT samples and HBE mucus. We suggest that the practical benefits compared with other sample types make ETT mucus potentially useful for MOLD research.
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Affiliation(s)
- Matthew R Markovetz
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Durai B Subramani
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - William J Kissner
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Cameron B Morrison
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Ian C Garbarine
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Andrew Ghio
- National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina
| | - Kathryn A Ramsey
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Harendra Arora
- Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina
- Outcomes Research Consortium, Cleveland, Ohio
| | - Priya Kumar
- Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina
- Outcomes Research Consortium, Cleveland, Ohio
| | - David B Nix
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia
| | - Tadahiro Kumagai
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia
| | | | - Duncan C Krause
- Department of Microbiology, University of Georgia, Athens, Georgia
| | - Giorgia Radicioni
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Neil E Alexis
- Center for Environmental Medicine, Asthma, and Lung Biology, University of North Carolina, Chapel Hill, North Carolina
| | - Mehmet Kesimer
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Michael Tiemeyer
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia
| | - Richard C Boucher
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Camille Ehre
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - David B Hill
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina
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24
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Markovetz MR, Subramani DB, Kissner WJ, Morrison CB, Garbarine IC, Ghio A, Ramsey KA, Arora H, Kumar P, Nix DB, Kumagai T, Krunkosky TM, Krause DC, Radicioni G, Alexis NE, Kesimer M, Tiemeyer M, Boucher RC, Ehre C, Hill DB. Endotracheal tube mucus as a source of airway mucus for rheological study. Am J Physiol Lung Cell Mol Physiol 2019; 317:L498-L509. [PMID: 31389736 DOI: 10.1152/ajplung.00238.2019] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Muco-obstructive lung diseases (MOLDs), like cystic fibrosis and chronic obstructive pulmonary disease, affect a spectrum of subjects globally. In MOLDs, the airway mucus becomes hyperconcentrated, increasing osmotic and viscoelastic moduli and impairing mucus clearance. MOLD research requires relevant sources of healthy airway mucus for experimental manipulation and analysis. Mucus collected from endotracheal tubes (ETT) may represent such a source with benefits, e.g., in vivo production, over canonical sample types such as sputum or human bronchial epithelial (HBE) mucus. Ionic and biochemical compositions of ETT mucus from healthy human subjects were characterized and a stock of pooled ETT samples generated. Pooled ETT mucus exhibited concentration-dependent rheologic properties that agreed across spatial scales with reported individual ETT samples and HBE mucus. We suggest that the practical benefits compared with other sample types make ETT mucus potentially useful for MOLD research.
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Affiliation(s)
- Matthew R Markovetz
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Durai B Subramani
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - William J Kissner
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Cameron B Morrison
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Ian C Garbarine
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Andrew Ghio
- National Health and Environmental Effects Research Laboratory, United States Environmental Protection Agency, Research Triangle Park, North Carolina
| | - Kathryn A Ramsey
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Harendra Arora
- Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina.,Outcomes Research Consortium, Cleveland, Ohio
| | - Priya Kumar
- Department of Anesthesiology, University of North Carolina, Chapel Hill, North Carolina.,Outcomes Research Consortium, Cleveland, Ohio
| | - David B Nix
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia
| | - Tadahiro Kumagai
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia
| | | | - Duncan C Krause
- Department of Microbiology, University of Georgia, Athens, Georgia
| | - Giorgia Radicioni
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Neil E Alexis
- Center for Environmental Medicine, Asthma, and Lung Biology, University of North Carolina, Chapel Hill, North Carolina
| | - Mehmet Kesimer
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina.,Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Michael Tiemeyer
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia
| | - Richard C Boucher
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - Camille Ehre
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina
| | - David B Hill
- Marsico Lung Institute, University of North Carolina, Chapel Hill, North Carolina.,Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina
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25
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Aschner Y, Downey GP. The Importance of Tyrosine Phosphorylation Control of Cellular Signaling Pathways in Respiratory Disease: pY and pY Not. Am J Respir Cell Mol Biol 2019; 59:535-547. [PMID: 29812954 DOI: 10.1165/rcmb.2018-0049tr] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Reversible phosphorylation of proteins on tyrosine residues is an essential signaling mechanism by which diverse cellular processes are closely regulated. The tight temporal and spatial control of the tyrosine phosphorylation status of proteins by protein tyrosine kinases (PTKs) and protein tyrosine phosphatases (PTPs) is critical to cellular homeostasis as well as to adaptations to the external environment. Via regulation of cellular signaling cascades involving other protein kinases and phosphatases, receptors, adaptor proteins, and transcription factors, PTKs and PTPs closely control diverse cellular processes such as proliferation, differentiation, migration, inflammation, and maintenance of cellular barrier function. Given these key regulatory roles, it is not surprising that dysfunction of PTKs and PTPs is important in the pathogenesis of human disease, including many pulmonary diseases. The roles of various PTKs and PTPs in acute lung injury and repair, pulmonary fibrosis, pulmonary vascular disease, and inflammatory airway disease are discussed in this review. It is important to note that although there is overlap among many of these proteins in various disease states, the mechanisms by which they influence the pathogenesis of these conditions differ, suggesting wide-ranging roles for these enzymes and their potential as therapeutic targets.
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Affiliation(s)
- Yael Aschner
- 1 Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, and
| | - Gregory P Downey
- 1 Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, and.,2 Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, Colorado; and.,3 Department of Medicine.,4 Department of Pediatrics, and.,5 Department of Biomedical Research, National Jewish Health, Denver, Colorado
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26
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Qu J, Mei Q, Niu R. Oxidative CaMKII as a potential target for inflammatory disease (Review). Mol Med Rep 2019; 20:863-870. [PMID: 31173191 DOI: 10.3892/mmr.2019.10309] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 05/22/2019] [Indexed: 11/06/2022] Open
Abstract
CaMKII is a calcium‑activated kinase, proved to be modulated by oxidation. Currently, the oxidative activation of CaMKII exists in several models of asthma, chronic rhinosinusitis with nasal polyps, cardiovascular disease, diabetes mellitus, acute ischemic stroke and cancer. Oxidized CaMKII (ox‑CaMKII) may be important in several of these diseases. The present review examines the mechanism underlying the oxidative activation of CaMKII and summarizes the current findings associated with the function of ox‑CaMKII in inflammatory diseases. Taken together, the findings of this review aim to improve current understanding of the function of ox‑CaMKII and provide novel insights for future research.
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Affiliation(s)
- Jingjing Qu
- Department of Lung Cancer and Gastroenterology, Hunan Cancer Hospital, Affiliated Tumor Hospital of Xiangya Medical School of Central South University, Changsha, Hunan 410008, P.R. China
| | - Quanhui Mei
- Department of Intensive Care Unit, The First People's Hospital of Changde City, Changde, Hunan 410005, P.R. China
| | - Ruichao Niu
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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27
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Lenga Ma Bonda W, Iochmann S, Magnen M, Courty Y, Reverdiau P. Kallikrein-related peptidases in lung diseases. Biol Chem 2019; 399:959-971. [PMID: 29604204 DOI: 10.1515/hsz-2018-0114] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 03/26/2018] [Indexed: 02/06/2023]
Abstract
Human tissue kallikreins (KLKs) are 15 members of the serine protease family and are present in various healthy human tissues including airway tissues. Multiple studies have revealed their crucial role in the pathophysiology of a number of chronic, infectious and tumour lung diseases. KLK1, 3 and 14 are involved in asthma pathogenesis, and KLK1 could be also associated with the exacerbation of this inflammatory disease caused by rhinovirus. KLK5 was demonstrated as an influenza virus activating protease in humans, and KLK1 and 12 could also be involved in the activation and spread of these viruses. KLKs are associated with lung cancer, with up- or downregulation of expression depending on the KLK, cancer subtype, stage of tumour and also the microenvironment. Functional studies showed that KLK12 is a potent pro-angiogenic factor. Moreover, KLK6 promotes malignant-cell proliferation and KLK13 invasiveness. In contrast, KLK8 and KLK10 reduce proliferation and invasion of malignant cells. Considering the involvement of KLKs in various physiological and pathological processes, KLKs appear to be potential biomarkers and therapeutic targets for lung diseases.
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Affiliation(s)
- Woodys Lenga Ma Bonda
- Centre d'Etude des Pathologies Respiratoires, INSERM UMR 1100, Faculté de Médecine, 10 Boulevard Tonnellé, F-37032 Tours, France.,Université de Tours, F-37032 Tours, France
| | - Sophie Iochmann
- Centre d'Etude des Pathologies Respiratoires, INSERM UMR 1100, Faculté de Médecine, 10 Boulevard Tonnellé, F-37032 Tours, France.,Université de Tours, F-37032 Tours, France.,IUT de Tours, Université de Tours, F-37082 Tours, France
| | - Mélia Magnen
- Centre d'Etude des Pathologies Respiratoires, INSERM UMR 1100, Faculté de Médecine, 10 Boulevard Tonnellé, F-37032 Tours, France.,Université de Tours, F-37032 Tours, France
| | - Yves Courty
- Centre d'Etude des Pathologies Respiratoires, INSERM UMR 1100, Faculté de Médecine, 10 Boulevard Tonnellé, F-37032 Tours, France.,Université de Tours, F-37032 Tours, France
| | - Pascale Reverdiau
- Centre d'Etude des Pathologies Respiratoires, INSERM UMR 1100, Faculté de Médecine, 10 Boulevard Tonnellé, F-37032 Tours, France.,Université de Tours, F-37032 Tours, France.,IUT de Tours, Université de Tours, F-37082 Tours, France
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28
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Magnen M, Gueugnon F, Petit-Courty A, Baranek T, Sizaret D, Brewah YA, Humbles AA, Si-Tahar M, Courty Y. Tissue kallikrein regulates alveolar macrophage apoptosis early in influenza virus infection. Am J Physiol Lung Cell Mol Physiol 2019; 316:L1127-L1140. [PMID: 30908937 DOI: 10.1152/ajplung.00379.2018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Host cell proteases are involved in influenza pathogenesis. We examined the role of tissue kallikrein 1 (KLK1) by comparing wild-type (WT) and KLK1-deficient mice infected with influenza H3N2 virus. The levels of KLK1 in lung tissue and in bronchoalveolar lavage (BAL) fluid increased substantially during infection. KLK1 did not promote virus infectivity despite its trypsin-like activity, but it did decrease the initial virus load. We examined two cell types involved in the early control of pathogen infections, alveolar macrophages (AMs) and natural killer (NK) cells to learn more about the antiviral action of KLK1. Inactivating the Klk1 gene or treating WT mice with an anti-KLK1 monoclonal antibody to remove KLK1 activity accelerated the initial virus-induced apoptotic depletion of AMs. Intranasal instillation of deficient mice with recombinant KLK1 (rKLK1) reversed the phenotype. The levels of granulocyte-macrophage colony-stimulating factor in infected BAL fluid were significantly lower in KLK1-deficient mice than in WT mice. Treating lung epithelial cells with rKLK1 increased secretion of this factor known to enhance AM resistance to pathogen-induced apoptosis. The recruitment of NK cells to the air spaces peaked 3 days after infection in WT mice but not in KLK1-deficient mice, as did increases in several NK-attracting chemokines (CCL2, CCL3, CCL5, and CXCL10) in BAL. Chronic obstructive pulmonary disease (COPD) patients are highly susceptible to viral infection, and we observed that the KLK1 mRNA levels decreased with increasing COPD severity. Our findings indicate that KLK1 intervenes early in the antiviral defense modulating the severity of influenza infection. Decreased KLK1 expression in COPD patients could contribute to the worsening of influenza.
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Affiliation(s)
- Melia Magnen
- INSERM, U1100-Centre d'Etude des Pathologies Respiratoires , Tours , France.,Université de Tours , Tours , France
| | - Fabien Gueugnon
- INSERM, U1100-Centre d'Etude des Pathologies Respiratoires , Tours , France.,Université de Tours , Tours , France
| | - Agnès Petit-Courty
- INSERM, U1100-Centre d'Etude des Pathologies Respiratoires , Tours , France.,Université de Tours , Tours , France
| | - Thomas Baranek
- INSERM, U1100-Centre d'Etude des Pathologies Respiratoires , Tours , France.,Université de Tours , Tours , France
| | - Damien Sizaret
- INSERM, U1100-Centre d'Etude des Pathologies Respiratoires , Tours , France.,Université de Tours , Tours , France
| | | | | | - Mustapha Si-Tahar
- INSERM, U1100-Centre d'Etude des Pathologies Respiratoires , Tours , France.,Université de Tours , Tours , France
| | - Yves Courty
- INSERM, U1100-Centre d'Etude des Pathologies Respiratoires , Tours , France.,Université de Tours , Tours , France
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29
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Yepiskoposyan H, Talikka M, Vavassori S, Martin F, Sewer A, Gubian S, Luettich K, Peitsch MC, Hoeng J. Construction of a Suite of Computable Biological Network Models Focused on Mucociliary Clearance in the Respiratory Tract. Front Genet 2019; 10:87. [PMID: 30828347 PMCID: PMC6384416 DOI: 10.3389/fgene.2019.00087] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 01/29/2019] [Indexed: 11/13/2022] Open
Abstract
Mucociliary clearance (MCC), considered as a collaboration of mucus secreted from goblet cells, the airway surface liquid layer, and the beating of cilia of ciliated cells, is the airways’ defense system against airborne contaminants. Because the process is well described at the molecular level, we gathered the available information into a suite of comprehensive causal biological network (CBN) models. The suite consists of three independent models that represent (1) cilium assembly, (2) ciliary beating, and (3) goblet cell hyperplasia/metaplasia and that were built in the Biological Expression Language, which is both human-readable and computable. The network analysis of highly connected nodes and pathways demonstrated that the relevant biology was captured in the MCC models. We also show the scoring of transcriptomic data onto these network models and demonstrate that the models capture the perturbation in each dataset accurately. This work is a continuation of our approach to use computational biological network models and mathematical algorithms that allow for the interpretation of high-throughput molecular datasets in the context of known biology. The MCC network model suite can be a valuable tool in personalized medicine to further understand heterogeneity and individual drug responses in complex respiratory diseases.
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Affiliation(s)
| | - Marja Talikka
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | | | - Florian Martin
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Alain Sewer
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Sylvain Gubian
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Karsta Luettich
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | | | - Julia Hoeng
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
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30
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Heo JH, Heo Y, Lee HJ, Kim M, Shin HY. Topical anti-inflammatory and anti-oxidative effects of porcine placenta extracts on 2,4-dinitrochlorobenzene-induced contact dermatitis. Altern Ther Health Med 2018; 18:331. [PMID: 30541534 PMCID: PMC6291973 DOI: 10.1186/s12906-018-2396-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 11/29/2018] [Indexed: 11/10/2022]
Abstract
Background The placenta is a reservoir enriched with growth factors, hormones, cytokines and minerals. While several beneficial effects of placenta extracts on wound healing, anti-aging and anti-inflammatory responses have been reported, relatively limited mechanistic exploration has been conducted to date. Here, we provide compelling evidence of anti-inflammatory and anti-oxidative activities of porcine placenta extracts (PPE) against contact dermatitis in vivo. Methods A contact dermatitis mouse model was established by sensitizing the dorsal skin of BALB/c mice using the contact allergen, 2,4-dinitrochlorobenzene (DNCB), and molecular consequences of topical application of PPE were investigated. PPEs were pre-sterilized via γ-irradiation, which is a milder but more effective way of sterilizing biomolecules relative to the conventional autoclaving method. Results DNCB-induced skin lesions displayed clear contact dermatitis-like symptoms and topical application of PPE dramatically alleviated both local and systemic inflammatory responses. Inflammatory epidermal thickening was completely abrogated and allergen-specific serum IgE levels significantly reduced in the presence of PPE. Moreover, anti-oxidative activities of PPE were observed both in vitro and in vivo, which may lead to attenuation of inflammatory responses. Prolonged treatment with PPE strongly inhibited production of DNCB-induced reactive oxygen species (ROS) and subsequently prevented oxidative degradation of hyaluronic acid (HA), which triggers innate inflammatory responses. Conclusion Our findings supply valuable insights into the mechanisms underlying the anti-inflammatory effects of PPE and provide a functional basis for the clinical application of PPE in inflammatory diseases. Electronic supplementary material The online version of this article (10.1186/s12906-018-2396-1) contains supplementary material, which is available to authorized users.
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31
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Bolmarcich J, Wilbert S, Jackson GR, Oldach J, Bachelor M, Kenney T, Wright CD, Hayden PJ. In VitroHuman Airway Models for Study of Goblet Cell Hyperplasia and Mucus Production: Effects of Th2 Cytokines, Double-Stranded RNA, and Tobacco Smoke. ACTA ACUST UNITED AC 2018. [DOI: 10.1089/aivt.2017.0001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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32
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Snelgrove RJ, Patel DF, Patel T, Lloyd CM. The enigmatic role of the neutrophil in asthma: Friend, foe or indifferent? Clin Exp Allergy 2018; 48:1275-1285. [PMID: 29900603 DOI: 10.1111/cea.13191] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Whilst severe asthma has classically been categorized as a predominantly Th2-driven pathology, there has in recent years been a paradigm shift with the realization that it is a heterogeneous disease that may manifest with quite disparate underlying inflammatory and remodelling profiles. A subset of asthmatics, particularly those with a severe, corticosteroid refractory disease, present with a prominent neutrophilic component. Given the potential of neutrophils to impart extensive tissue damage and promote inflammation, it has been anticipated that these cells are closely implicated in the underlying pathophysiology of severe asthma. However, uncertainty persists as to why the neutrophil is present in the asthmatic lung and what precisely it is doing there, with evidence supporting its role as a protagonist of pathology being primarily circumstantial. Furthermore, our view of the neutrophil as a primitive, indiscriminate killer has evolved with the realization that neutrophils can exhibit a marked anti-inflammatory, pro-resolving and wound healing capacity. We suggest that the neutrophil likely exhibits pleiotropic and potentially conflicting roles in defining asthma pathophysiology-some almost certainly detrimental and some potentially beneficial-with context, timing and location all critical confounders. Accordingly, indiscriminate blockade of neutrophils with a broad sword approach is unlikely to be the answer, but rather we should first seek to understand their complex and multifaceted roles in the disease state and then target them with the same subtleties and specificity that they themselves exhibit.
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Affiliation(s)
- R J Snelgrove
- Inflammation Repair and Development Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - D F Patel
- Inflammation Repair and Development Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - T Patel
- Inflammation Repair and Development Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - C M Lloyd
- Inflammation Repair and Development Section, National Heart and Lung Institute, Imperial College London, London, UK
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Hussain SS, George S, Singh S, Jayant R, Hu CA, Sopori M, Chand HS. A Small Molecule BH3-mimetic Suppresses Cigarette Smoke-Induced Mucous Expression in Airway Epithelial Cells. Sci Rep 2018; 8:13796. [PMID: 30218002 PMCID: PMC6138652 DOI: 10.1038/s41598-018-32114-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 09/03/2018] [Indexed: 01/07/2023] Open
Abstract
Cigarette smoke (CS) exposure is one of the primary risk factors associated with the chronic mucous hypersecretion (CMH). The antiapoptotic protein, Bcl-2 sustains hyperplastic mucous cells, and the airway epithelium of ex-smokers with CMH as well as mice exposed to chronic CS showed increased Bcl-2 expression. Therefore, we investigated whether Bcl-2 plays a role in CS-induced mucous expression. Primary airway epithelial cells (AECs) of murine and human origin were treated with CS extract (CSE), and there was a concentration- and time-dependent increase in secretory mucin (MUC5AC), mucous regulator (SPDEF) and Bcl-2 expression. Using differentiated human AECs cultured on air-liquid interface, EGFR and ERK1/2 pathways were interrogated. Bcl-2 activity was blocked using a small molecule BH3 mimetic ABT-263 that disrupts the Bcl-2 interaction with pro-apoptotic proteins. The ABT-263 treatment resulted in the downregulation of CSE-induced mucus expression and disrupted the EGFR-signaling while inducing the apoptosis and the pro-apoptotic protein, Bik expression. This strategy significantly suppressed the mainstream CS-induced mucous phenotype in a 3-D human airway epithelium model. Therefore, the present study suggests that CS induces Bcl-2 expression to help promote mucous cell survival; and small molecule BH3 mimetics targeting Bcl-2 could be useful in suppressing the CS-induced mucous response.
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Affiliation(s)
- Shah S Hussain
- Department of Immunology & Nano-Medicine, Institute of NeuroImmune Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL - 33199, USA
| | - Shebin George
- Department of Immunology & Nano-Medicine, Institute of NeuroImmune Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL - 33199, USA
| | - Shashi Singh
- Lovelace Respiratory Research Institute, Albuquerque, NM - 87108, USA
| | - Rahul Jayant
- Department of Immunology & Nano-Medicine, Institute of NeuroImmune Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL - 33199, USA
| | - Chien-An Hu
- Department of Biochemistry and Molecular Biology, University of New Mexico, Albuquerque, NM - 87131, USA
| | - Mohan Sopori
- Lovelace Respiratory Research Institute, Albuquerque, NM - 87108, USA
| | - Hitendra S Chand
- Department of Immunology & Nano-Medicine, Institute of NeuroImmune Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL - 33199, USA.
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Casalino-Matsuda SM, Wang N, Ruhoff PT, Matsuda H, Nlend MC, Nair A, Szleifer I, Beitel GJ, Sznajder JI, Sporn PHS. Hypercapnia Alters Expression of Immune Response, Nucleosome Assembly and Lipid Metabolism Genes in Differentiated Human Bronchial Epithelial Cells. Sci Rep 2018; 8:13508. [PMID: 30202079 PMCID: PMC6131151 DOI: 10.1038/s41598-018-32008-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 08/31/2018] [Indexed: 12/19/2022] Open
Abstract
Hypercapnia, the elevation of CO2 in blood and tissues, commonly occurs in severe acute and chronic respiratory diseases, and is associated with increased risk of mortality. Recent studies have shown that hypercapnia adversely affects innate immunity, host defense, lung edema clearance and cell proliferation. Airway epithelial dysfunction is a feature of advanced lung disease, but the effect of hypercapnia on airway epithelium is unknown. Thus, in the current study we examined the effect of normoxic hypercapnia (20% CO2 for 24 h) vs normocapnia (5% CO2), on global gene expression in differentiated normal human airway epithelial cells. Gene expression was assessed on Affymetrix microarrays, and subjected to gene ontology analysis for biological process and cluster-network representation. We found that hypercapnia downregulated the expression of 183 genes and upregulated 126. Among these, major gene clusters linked to immune responses and nucleosome assembly were largely downregulated, while lipid metabolism genes were largely upregulated. The overwhelming majority of these genes were not previously known to be regulated by CO2. These changes in gene expression indicate the potential for hypercapnia to impact bronchial epithelial cell function in ways that may contribute to poor clinical outcomes in patients with severe acute or advanced chronic lung diseases.
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Affiliation(s)
- S Marina Casalino-Matsuda
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America.
| | - Naizhen Wang
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Peder T Ruhoff
- Department of Technology and Innovation, University of Southern Denmark, Odense, Denmark
| | - Hiroaki Matsuda
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, United States of America
- Department of Physical Sciences & Engineering, Wilbur Wright College, Chicago, Illinois, United States of America
| | - Marie C Nlend
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
- Division of Protein and Cellular Analysis, Thermo Fisher Scientific, Rockford, Illinois, United States of America
| | - Aisha Nair
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Igal Szleifer
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, United States of America
- Department of Chemistry, Northwestern University, Evanston, Illinois, United States of America
- Chemistry of Life Processes Institute, Northwestern University, Evanston, Illinois, United States of America
| | - Greg J Beitel
- Department of Molecular Biosciences, Northwestern University, Evanston, Illinois, United States of America
| | - Jacob I Sznajder
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Peter H S Sporn
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
- Jesse Brown VA Medical Center, Chicago, Illinois, United States of America
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Zhang J, Fulgar CC, Mar T, Young DE, Zhang Q, Bein KJ, Cui L, Castañeda A, Vogel CFA, Sun X, Li W, Smiley-Jewell S, Zhang Z, Pinkerton KE. TH17-Induced Neutrophils Enhance the Pulmonary Allergic Response Following BALB/c Exposure to House Dust Mite Allergen and Fine Particulate Matter From California and China. Toxicol Sci 2018; 164:627-643. [PMID: 29846732 PMCID: PMC6061684 DOI: 10.1093/toxsci/kfy127] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Asthma is a global and increasingly prevalent disease. According to the World Health Organization, approximately 235 million people suffer from asthma. Studies suggest that fine particulate matter (PM2.5) can induce innate immune responses, promote allergic sensitization, and exacerbate asthmatic symptoms and airway hyper-responsiveness. Recently, severe asthma and allergic sensitization have been associated with T-helper cell type 17 (TH17) activation. Few studies have investigated the links between PM2.5 exposure, allergic sensitization, asthma, and TH17 activation. This study aimed to determine whether (1) low-dose extracts of PM2.5 from California (PMCA) or China (PMCH) enhance allergic sensitization in mice following exposure to house dust mite (HDM) allergen; (2) eosinophilic or neutrophilic inflammatory responses result from PM and HDM exposure; and (3) TH17-associated cytokines are increased in the lung following exposure to PM and/or HDM. Ten-week-old male BALB/c mice (n = 6-10/group) were intranasally instilled with phosphate-buffered saline (PBS), PM+PBS, HDM, or PM+HDM, on days 1, 3, and 5 (sensitization experiments), and PBS or HDM on days 12-14 (challenge experiments). Pulmonary function, bronchoalveolar lavage cell differentials, plasma immunoglobulin (Ig) protein levels, and lung tissue pathology, cyto-/chemo-kine proteins, and gene expression were assessed on day 15. Results indicated low-dose PM2.5 extracts can enhance allergic sensitization and TH17-associated responses. Although PMCA+HDM significantly decreased pulmonary function, and significantly increased neutrophils, Igs, and TH17-related protein and gene levels compared with HDM, there were no significant differences between HDM and PMCH+HDM treatments. This may result from greater copper and oxidized organic content in PMCA versus PMCH.
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Affiliation(s)
- Jingjing Zhang
- Department of Environmental and Occupational Health, West China School of Public Health, Sichuan University, Chengdu, People’s Republic of China
- Center for Health and the Environment
| | | | | | - Dominique E Young
- Department of Environmental Toxicology; and
- Air Quality Research Center, University of California, Davis, California 95616
| | - Qi Zhang
- Department of Environmental Toxicology; and
| | - Keith J Bein
- Center for Health and the Environment
- Air Quality Research Center, University of California, Davis, California 95616
| | - Liangliang Cui
- Jinan Municipal Center for Disease Control and Prevention, Jinan, People’s Republic of China
| | | | - Christoph F A Vogel
- Center for Health and the Environment
- Department of Environmental Toxicology; and
| | - Xiaolin Sun
- Biomedical Engineering Institute, School of Control Science and Engineering, Shandong University, Jinan, People’s Republic of China
| | - Wei Li
- Biomedical Engineering Institute, School of Control Science and Engineering, Shandong University, Jinan, People’s Republic of China
| | | | - Zunzhen Zhang
- Department of Environmental and Occupational Health, West China School of Public Health, Sichuan University, Chengdu, People’s Republic of China
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Jing Y, Gimenes JA, Mishra R, Pham D, Comstock AT, Yu D, Sajjan U. NOTCH3 contributes to rhinovirus-induced goblet cell hyperplasia in COPD airway epithelial cells. Thorax 2018; 74:18-32. [PMID: 29991510 DOI: 10.1136/thoraxjnl-2017-210593] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 05/15/2018] [Accepted: 06/11/2018] [Indexed: 11/04/2022]
Abstract
RATIONALE Goblet cell hyperplasia (GCH) is one of the cardinal features of chronic obstructive pulmonary disease (COPD) and contributes to airways obstruction. Rhinovirus (RV), which causes acute exacerbations in patients with COPD, also causes prolonged airways obstruction. Previously, we showed that RV enhances mucin gene expression and increases goblet cell number in a COPD mouse model. This study examines whether RV causes sustained GCH in relevant models of COPD. METHODS Mucociliary-differentiated COPD and normal airway epithelial cell cultures and mice with normal or COPD phenotype were infected with RV or sham and examined for GCH by immunofluorescence and/or mucin gene expression. In some experiments, RV-infected COPD cells and mice with COPD phenotype were treated with γ-secretase inhibitor or interleukin-13 neutralising antibody and assessed for GCH. To determine the contribution of NOTCH1/3 in RV-induced GCH, COPD cells transduced with NOTCH1/3 shRNA were used. RESULTS RV-infected COPD, but not normal cell cultures, showed sustained GCH and increased mucin genes expression. Microarray analysis indicated increased expression of NOTCH1, NOTCH3 and HEY1 only in RV-infected COPD cells. Blocking NOTCH3, but not NOTCH1, attenuated RV-induced GCH in vitro. Inhibition of NOTCH signalling by γ-secretase inhibitor, but not neutralising antibody to IL-13, abrogated RV-induced GCH and mucin gene expression. CONCLUSIONS RV induces sustained GCH via NOTCH3 particularly in COPD cells or mice with COPD phenotype. This may be one of the mechanisms that may contribute to RV-induced prolonged airways obstruction in COPD.
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Affiliation(s)
- Yaxun Jing
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, USA
| | - Joao Antonio Gimenes
- Department of Thoracic Surgery and Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Rahul Mishra
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, USA
| | - Duc Pham
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, USA
| | - Adam T Comstock
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, USA
| | - Daohai Yu
- Department of Clinical Sciences, Temple University, Philadelphia, Pennsylvania, USA
| | - Umadevi Sajjan
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Michigan, USA.,Department of Thoracic Surgery and Medicine, Temple University, Philadelphia, Pennsylvania, USA.,Department of Physiology, Temple University, Philadelphia, Pennsylvania, USA
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Hwang IK, Paik SS, Lee SH. Impact of Pulmonary Tuberculosis on the EGFR Mutational Status and Clinical Outcome in Patients with Lung Adenocarcinoma. Cancer Res Treat 2018; 51:158-168. [PMID: 29621876 PMCID: PMC6333978 DOI: 10.4143/crt.2018.084] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 03/30/2018] [Indexed: 12/13/2022] Open
Abstract
Purpose Although it has been suggested that pulmonary tuberculosis (TB) is associated with increased risk of lung cancer, the exact mechanism is not clearly identified. We investigated the effect of pulmonary TB on the epidermal growth factor receptor (EGFR) mutational status and clinical outcome in patients with pulmonary adenocarcinoma. Materials and Methods We reviewed data of patients diagnosed with pulmonary adenocarcinoma harboring EGFR mutations and treated at our institution from 2008 to 2015. We divided our population into two groups: patients with pre-existing TB lesions on chest computed tomography scan (TB group) and those without the lesions (non-TB group). We compared the differences in EGFR mutational status, response to tyrosine kinase inhibitors (TKIs) and survival between the two groups. Results A total of 477 patients with pulmonary adenocarcinoma were analyzed. One hundred eighty-three patients (39%) had EGFR-mutated tumors and 100 (21%) patients had pre-existing TB lesions. The frequency of EGFR mutation was significantly higher in the TB group compared with the non-TB group (56% vs. 34%, p=0.038). Pre-existing TB lesions were independently associated with more frequent EGFR mutations in multivariate analysis (odds ratio, 1.43). In addition, both the progression-free survival (9.1 months vs. 11.6 months, p=0.020) and the overall survival (19.4 months vs. 24.5 months, p=0.014) after first-line EGFR-TKIs were significantly shorter in the TB group than in the non-TB group. Conclusion Previous pulmonary TB may be associated with more frequent EGFR mutations and poorer treatment response to EGFR-TKIs in patients with pulmonary adenocarcinoma.
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Affiliation(s)
- In Kyoung Hwang
- Division of Pulmonary Medicine, Department of Internal Medicine, Dongnam Institute of Radiological & Medical Sciences, Busan, Korea
| | - Seung Sook Paik
- Division of Pulmonary Medicine, Department of Internal Medicine, Dongnam Institute of Radiological & Medical Sciences, Busan, Korea
| | - Seung Hyeun Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Korea
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Sleep deprivation disrupts the lacrimal system and induces dry eye disease. Exp Mol Med 2018; 50:e451. [PMID: 29497171 PMCID: PMC5898890 DOI: 10.1038/emm.2017.285] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 09/11/2017] [Accepted: 09/26/2017] [Indexed: 12/31/2022] Open
Abstract
Sleep deficiency is a common public health problem associated with many diseases, such as obesity and cardiovascular disease. In this study, we established a sleep deprivation (SD) mouse model using a 'stick over water' method and observed the effect of sleep deficiency on ocular surface health. We found that SD decreased aqueous tear secretion; increased corneal epithelial cell defects, corneal sensitivity, and apoptosis; and induced squamous metaplasia of the corneal epithelium. These pathological changes mimic the typical features of dry eye. However, there was no obvious corneal inflammation and conjunctival goblet cell change after SD for 10 days. Meanwhile, lacrimal gland hypertrophy along with abnormal lipid metabolites, secretory proteins and free amino-acid profiles became apparent as the SD duration increased. Furthermore, the ocular surface changes induced by SD for 10 days were largely reversed after 14 days of rest. We conclude that SD compromises lacrimal system function and induces dry eye. These findings will benefit the clinical diagnosis and treatment of sleep-disorder-related ocular surface diseases.
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Fan X, Jiao H, Zhao J, Wang X, Lin H. Lipopolysaccharide impairs mucin secretion and stimulated mucosal immune stress response in respiratory tract of neonatal chicks. Comp Biochem Physiol C Toxicol Pharmacol 2018; 204:71-78. [PMID: 29203321 DOI: 10.1016/j.cbpc.2017.11.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/22/2017] [Accepted: 11/28/2017] [Indexed: 11/17/2022]
Abstract
The chicken immune system is immature at the time of hatching. The development of the respiratory immune system after hatching is vital to young chicks. The aim of this study was to investigate the effect of LPS on respiratory mucin and IgA production in chicks. In this study, we selected 7days old AA broilers of similar weigh randomly; LPS atomized at 1mg/kg body weigh dose in the confined space of 1 cubic meter. The chickens exposed for 2h. Then collect samples after 4h and 8h respectively. Compared to control, LPS inhibited mucus production in BALF, caused a rising trend of the concentration of IgA in serum and BALF, and increased the protein expression of IgA in lung tissue. And LPS treat induced a decreasing trend of the mRNA expression of IL-6 and TGF-β and significantly decreased the gene expression of TGF-α and EGFR after 4h. After 8h the LPS suppressed the TGF-β mRNA expression significantly. In addition, LPS treatment stimulated airway epithelial cilia sparse after 4h. Therefore, results proved: LPS can impair mucin expression and stimulated mucosal immune stress reaction of respiratory tract. This study suggested that LPS involved in respiratory tract mucosal immune response in chicks by regulating gene expression of cytokines and epithelial growth factors.
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Affiliation(s)
- Xiaoxiao Fan
- Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Hongchao Jiao
- Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China.
| | - Jingpeng Zhao
- Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Xiaojuan Wang
- Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China.
| | - Hai Lin
- Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China.
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Weigel PH, Baggenstoss BA. What is special about 200 kDa hyaluronan that activates hyaluronan receptor signaling? Glycobiology 2017; 27:868-877. [PMID: 28486620 PMCID: PMC5881711 DOI: 10.1093/glycob/cwx039] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 04/29/2017] [Accepted: 05/02/2017] [Indexed: 12/23/2022] Open
Abstract
The polydispersity of hyaluronan (HA) presents challenges for analyzing its solution properties, such as the relationship between mass and particle size. The broad mass range of natural HA (≤50-fold) makes molecular characterization difficult and ambiguous compared to molecules with known molecular weights (e.g., proteins). Biophysical studies show that large >MDa HA behaves like a random coil, whereas very small (e.g., 10 kDa) HA behaves like a rod. However, the mass range for this conformational transition is not easily determined in natural polydisperse HA. Some HA receptors (e.g., CD44 and HARE) initiate signaling responses upon binding HA in the 100-300 kDa range, but not larger MDa HA. Size-dependent responses are studied using nonnatural HA: purified narrow-size range HA [Pandey MS, Baggenstoss BA, Washburn J, Harris EN, Weigel PH. 2013. The hyaluronan receptor for endocytosis (HARE) activates NF-κB-mediated gene expression in response to 40-400 kDa, but not smaller or sarger, hyaluronans. J Biol Chem. 288:14068-14079] and very narrow size range Select-HA made chemo-enzymatically [Jing W, DeAngelis PL. 2004. Synchronized chemoenzymatic synthesis of monodisperse hyaluronan polymers. J Biol Chem. 279:42345-42349]. Here, we used size exclusion chromatography and multiangle light scattering to determine the weight-average molar mass and diameter of ~60 very narrow size preparations from 29 to 1650 kDa. The ratio of HA mass to HA diameter showed a transition in the 150-250 kDa size range (~65 nm). The HA rod-to-coil transition occurs within the size range that specifically activates cell signaling by some receptors. Thus, size-specific signaling could be due to unique external receptor•HA conformation changes that enable transmembrane-mediated activation of cytoplasmic domains. Alternatively and more likely, transition-size HA may enable multiple receptors to bind the same HA, creating new internal signal-competent cytoplasmic domain complexes.
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Affiliation(s)
- Paul H Weigel
- Department of Biochemistry & Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Bruce A Baggenstoss
- Department of Biochemistry & Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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Kleniewska P, Pawliczak R. The participation of oxidative stress in the pathogenesis of bronchial asthma. Biomed Pharmacother 2017; 94:100-108. [PMID: 28756367 DOI: 10.1016/j.biopha.2017.07.066] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 07/13/2017] [Accepted: 07/14/2017] [Indexed: 12/11/2022] Open
Abstract
Reactive oxygen species are produced during oxygen reduction and are characterized by high reactivity. They participate in many important physiological processes, but if produced in high concentrations they lead to oxidative stress development and disturb pro-oxidative/anti-oxidative balance towards the oxidation reaction - leading to damage of lipids, proteins, carbohydrates or nucleic acids. Asthma is a chronic inflammatory disease of the airways of various pathogenesis and clinical symptoms, prevalence in recent years has increased significantly. Recently published literature point out the involvement of reactive oxygen species in the pathogenesis of asthma. Changes in the protein and lipid oxidation lead, among others, to pathological changes in the respiratory epithelial cells, an increase in vascular permeability, mucus overproduction, smooth muscle contraction or airway hyperresponsiveness (AHR). The aim of this study is to present the current state of knowledge on the influence of oxidative stress parameters on asthma development.
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Affiliation(s)
- Paulina Kleniewska
- Department of Immunopathology, Faculty of Biomedical Sciences and Postgraduate Training, Medical University of Lodz, 7/9 Zeligowskiego St, bldg 2 Rm 122, 90-752 Lodz, Poland
| | - Rafał Pawliczak
- Department of Immunopathology, Faculty of Biomedical Sciences and Postgraduate Training, Medical University of Lodz, 7/9 Zeligowskiego St, bldg 2 Rm 122, 90-752 Lodz, Poland.
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Kase S, Shinohara T, Kase M, Ishida S. Effect of topical rebamipide on goblet cells in the lid wiper of human conjunctiva. Exp Ther Med 2017; 13:3516-3522. [PMID: 28587435 DOI: 10.3892/etm.2017.4390] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 12/07/2016] [Indexed: 12/23/2022] Open
Abstract
It has been demonstrated that topical administration of rebamipide, which is an antiulcer agent, increases the mucin level of the tear film and ameliorates ocular surface conditions such as lid wiper epitheliopathy. The aim of the present study was to analyze the changes in goblet cell number, cell proliferation, and epidermal growth factor receptor (EGFR) induced by topical rebamipide addition to the lid wiper of humans. A total of 30 eyelid tissue samples were obtained during involutional entropion surgeries, fixed in paraformaldehyde, embedded in paraffin and divided into two groups: Rebamipide or non-rebamipide. The tissues in the rebamipide group were obtained from patients who had a medical history of topical rebamipide use prior to surgery. The number of goblet cells was counted under light microscopy. A total of 22 eyelid tissue samples were further examined using immunohistochemistry with anti-Ki-67 and anti-EGFR antibodies to evaluate cell proliferation and EGFR expression, respectively. Histologically, the lid wiper and palpebral conjunctiva were clearly identified in the tissues. The number of goblet cells was significantly higher in the rebamipide group compared with the non-rebamipide group (P=0.0367). There was no significant difference in lid wiper cell proliferation between the rebamipide and non-rebamipide groups. Immunohistochemistry revealed that EGFR levels in the lid wiper epithelial cells were significantly higher in the rebamipide group compared with the non-rebamipide group (P=0.0237). These results suggest that topical rebamipide application increases the number of goblet cells in the lid wiper, which in turn upregulates the expression of EGFR. These findings may be clinically relevant and provide a therapeutic basis for the treatment of ocular disease such as dry eye and lid wiper epitheliopathy.
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Affiliation(s)
- Satoru Kase
- Department of Ophthalmology, Teine Keijinkai Hospital, Sapporo 006-0811, Japan.,Department of Ophthalmology, Hokkaido University Graduate School of Medicine, Sapporo 060-8638, Japan
| | - Toshiya Shinohara
- Department of Surgical Pathology, Teine Keijinkai Hospital, Sapporo 006-0811, Japan
| | - Manabu Kase
- Department of Ophthalmology, Teine Keijinkai Hospital, Sapporo 006-0811, Japan
| | - Susumu Ishida
- Department of Ophthalmology, Hokkaido University Graduate School of Medicine, Sapporo 060-8638, Japan
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Ghatak S, Hascall VC, Markwald RR, Feghali-Bostwick C, Artlett CM, Gooz M, Bogatkevich GS, Atanelishvili I, Silver RM, Wood J, Thannickal VJ, Misra S. Transforming growth factor β1 (TGFβ1)-induced CD44V6-NOX4 signaling in pathogenesis of idiopathic pulmonary fibrosis. J Biol Chem 2017; 292:10490-10519. [PMID: 28389561 DOI: 10.1074/jbc.m116.752469] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 04/06/2017] [Indexed: 01/06/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive clinical syndrome of fatal outcome. The lack of information about the signaling pathways that sustain fibrosis and the myofibroblast phenotype has prevented the development of targeted therapies for IPF. Our previous study showed that isolated fibrogenic lung fibroblasts have high endogenous levels of the hyaluronan receptor, CD44V6 (CD44 variant containing exon 6), which enhances the TGFβ1 autocrine signaling and induces fibroblasts to transdifferentiate into myofibroblasts. NADPH oxidase 4 (NOX4) enzyme, which catalyzes the reduction of O2 to hydrogen peroxide (H2O2), has been implicated in the cardiac and lung myofibroblast phenotype. However, whether CD44V6 regulates NOX4 to mediate tissue repair and fibrogenesis is not well-defined. The present study assessed the mechanism of how TGF-β-1-induced CD44V6 regulates the NOX4/reactive oxygen species (ROS) signaling that mediates the myofibroblast differentiation. Specifically, we found that NOX4/ROS regulates hyaluronan synthesis and the transcription of CD44V6 via an effect upon AP-1 activity. Further, CD44V6 is part of a positive-feedback loop with TGFβ1/TGFβRI signaling that acts to increase NOX4/ROS production, which is required for myofibroblast differentiation, myofibroblast differentiation, myofibroblast extracellular matrix production, myofibroblast invasion, and myofibroblast contractility. Both NOX4 and CD44v6 are up-regulated in the lungs of mice subjected to experimental lung injury and in cases of human IPF. Genetic (CD44v6 shRNA) or a small molecule inhibitor (CD44v6 peptide) targeting of CD44v6 abrogates fibrogenesis in murine models of lung injury. These studies support a function for CD44V6 in lung fibrosis and offer proof of concept for therapeutic targeting of CD44V6 in lung fibrosis disorders.
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Affiliation(s)
- Shibnath Ghatak
- From the Department of Regenerative Medicine and Cell Biology,
| | - Vincent C Hascall
- the Department of Biomedical Engineering/ND20, Cleveland Clinic, Cleveland, Ohio 44195
| | | | | | - Carol M Artlett
- the Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, Pennsylvania 19129
| | - Monika Gooz
- the College of Pharmacy/Pharmaceutical Biomedical Science, Medical University of South Carolina, Charleston, South Carolina 29425
| | | | - Ilia Atanelishvili
- the Division of Rheumatology and Immunology, Department of Medicine, and
| | - Richard M Silver
- the Division of Rheumatology and Immunology, Department of Medicine, and
| | - Jeanette Wood
- Genkyotex, 16 Chemin des Aulx, CH-1228 Plan-les-Ouates Geneva, Switzerland, and
| | - Victor J Thannickal
- the Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294-0006
| | - Suniti Misra
- From the Department of Regenerative Medicine and Cell Biology,
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Abstract
Respiratory immunity is accomplished using multiple mechanisms including structure/anatomy of the respiratory tract, mucosal defense in the form of the mucociliary apparatus, innate immunity using cells and molecules and acquired immunity. There are species differences of the respiratory immune system that influence the response to environmental challenges and pharmaceutical, industrial and agricultural compounds assessed in nonclinical safety testing and hazard identification. These differences influence the interpretation of respiratory system changes after exposure to these challenges and compounds in nonclinical safety assessment and hazard identification and their relevance to humans.
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45
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Luettich K, Talikka M, Lowe FJ, Haswell LE, Park J, Gaca MD, Hoeng J. The Adverse Outcome Pathway for Oxidative Stress-Mediated EGFR Activation Leading to Decreased Lung Function. ACTA ACUST UNITED AC 2017. [DOI: 10.1089/aivt.2016.0032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Karsta Luettich
- Philip Morris International R&D, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Neuchâtel, Switzerland
| | - Marja Talikka
- Philip Morris International R&D, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Neuchâtel, Switzerland
| | - Frazer J. Lowe
- British American Tobacco (Investments) Ltd., Southampton, United Kingdom
| | - Linsey E. Haswell
- British American Tobacco (Investments) Ltd., Southampton, United Kingdom
| | | | - Marianna D. Gaca
- British American Tobacco (Investments) Ltd., Southampton, United Kingdom
| | - Julia Hoeng
- Philip Morris International R&D, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Neuchâtel, Switzerland
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46
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Wight TN, Frevert CW, Debley JS, Reeves SR, Parks WC, Ziegler SF. Interplay of extracellular matrix and leukocytes in lung inflammation. Cell Immunol 2017; 312:1-14. [PMID: 28077237 PMCID: PMC5290208 DOI: 10.1016/j.cellimm.2016.12.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 12/13/2022]
Abstract
During inflammation, leukocytes influx into lung compartments and interact with extracellular matrix (ECM). Two ECM components, versican and hyaluronan, increase in a range of lung diseases. The interaction of leukocytes with these ECM components controls leukocyte retention and accumulation, proliferation, migration, differentiation, and activation as part of the inflammatory phase of lung disease. In addition, bronchial epithelial cells from asthmatic children co-cultured with human lung fibroblasts generate an ECM that is adherent for monocytes/macrophages. Macrophages are present in both early and late lung inflammation. Matrix metalloproteinase 10 (MMP10) is induced in alveolar macrophages with injury and infection and modulates macrophage phenotype and their ability to degrade collagenous ECM components. Collectively, studies outlined in this review highlight the importance of specific ECM components in the regulation of inflammatory events in lung disease. The widespread involvement of these ECM components in the pathogenesis of lung inflammation make them attractive candidates for therapeutic intervention.
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Affiliation(s)
- Thomas N Wight
- Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA.
| | - Charles W Frevert
- Department of Comparative Medicine, University of Washington, Seattle, WA, USA
| | - Jason S Debley
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, and Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
| | - Stephen R Reeves
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, and Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
| | - William C Parks
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Steven F Ziegler
- Immunology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA
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47
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Yang D, Jin M, Bai C, Zhou J, Shen Y. Peroxiredoxin 6 suppresses Muc5ac overproduction in LPS-induced airway inflammation through H 2O 2-EGFR-MAPK signaling pathway. Respir Physiol Neurobiol 2016; 236:84-90. [PMID: 27884794 DOI: 10.1016/j.resp.2016.11.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 11/20/2016] [Accepted: 11/20/2016] [Indexed: 12/22/2022]
Abstract
Mucus hypersecretion is a prominent mechanism in airway inflammation. Muc5ac is a major component of mucus and can be activated by reactive oxygen species (ROS). Peroxiredoxin 6 (Prdx6) highly expresses in airway epithelium and protects the airway from oxidative stress. In this study, we investigated the roles of Prdx6 in lipopolysaccharide (LPS)-induced mucin production in mice. We found that the levels of H2O2 and the Muc5ac mRNA were significantly increased in Prdx6 (-/-) mice compared to those in C57BL/6J mice after LPS instillation, which were markedly inhibited by epithelial growth factor receptor (EGFR) inhibitor Elrotinib. In vitro studies showed that mRNA levels of Prdx6 were decreased while H2O2 and Muc5ac were increased in a dose-dependent manner after LPS exposure, with significant increase in Prdx6 knockdown bronchial epithelial cells compared with those in normal epithelial cells. LPS-induced Muc5ac release was significantly inhibited by EGFR inhibitor, p38 inhibitor and JNK inhibitor, but not ERK1/2 inhibitor, indicating that the H2O2-EGFR-MAPK pathway is likely involved in the responses. This study indicated that Prdx6 decreased LPS-induced Muc5ac increase and played important roles in mucin hypersecretion after LPS exposure.
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Affiliation(s)
- Dong Yang
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Meiling Jin
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chunxue Bai
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jian Zhou
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Yao Shen
- Department of Pulmonary Medicine, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China.
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48
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Faris AN, Ganesan S, Chattoraj A, Chattoraj SS, Comstock AT, Unger BL, Hershenson MB, Sajjan US. Rhinovirus Delays Cell Repolarization in a Model of Injured/Regenerating Human Airway Epithelium. Am J Respir Cell Mol Biol 2016; 55:487-499. [PMID: 27119973 DOI: 10.1165/rcmb.2015-0243oc] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Rhinovirus (RV), which causes exacerbation in patients with chronic airway diseases, readily infects injured airway epithelium and has been reported to delay wound closure. In this study, we examined the effects of RV on cell repolarization and differentiation in a model of injured/regenerating airway epithelium (polarized, undifferentiated cells). RV causes only a transient barrier disruption in a model of normal (mucociliary-differentiated) airway epithelium. However, in the injury/regeneration model, RV prolongs barrier dysfunction and alters the differentiation of cells. The prolonged barrier dysfunction caused by RV was not a result of excessive cell death but was instead associated with epithelial-to-mesenchymal transition (EMT)-like features, such as reduced expression of the apicolateral junction and polarity complex proteins, E-cadherin, occludin, ZO-1, claudins 1 and 4, and Crumbs3 and increased expression of vimentin, a mesenchymal cell marker. The expression of Snail, a transcriptional repressor of tight and adherence junctions, was also up-regulated in RV-infected injured/regenerating airway epithelium, and inhibition of Snail reversed RV-induced EMT-like features. In addition, compared with sham-infected cells, the RV-infected injured/regenerating airway epithelium showed more goblet cells and fewer ciliated cells. Inhibition of epithelial growth factor receptor promoted repolarization of cells by inhibiting Snail and enhancing expression of E-cadherin, occludin, and Crumbs3 proteins, reduced the number of goblet cells, and increased the number of ciliated cells. Together, these results suggest that RV not only disrupts barrier function, but also interferes with normal renewal of injured/regenerating airway epithelium by inducing EMT-like features and subsequent goblet cell hyperplasia.
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Affiliation(s)
- Andrea N Faris
- 1 Departments of Pediatrics and Communicable Diseases and
| | | | | | | | | | | | - Marc B Hershenson
- 1 Departments of Pediatrics and Communicable Diseases and.,2 Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
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S-allylmercapto-l-cysteine modulates MUC5AC and AQP5 secretions in a COPD model via NF-кB signaling pathway. Int Immunopharmacol 2016; 39:307-313. [PMID: 27517516 DOI: 10.1016/j.intimp.2016.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 07/25/2016] [Accepted: 08/01/2016] [Indexed: 11/23/2022]
Abstract
Garlic has shown versatile medicinal activities in the prevention and treatment of diseases such as chronic obstructive pulmonary disease (COPD). However, no individual garlic bioactive components have yet been determined in the COPD treatment effects. In this work, S-allylmercapto-l-cysteine (SAMC) identified in the aged garlic was selected as a model compound to determine its COPD therapeutic potential. The COPD model was established by using lipopolysaccharides (LPS) to stimulate the human airway submucosal gland cell line SPC-A1. Previous studies show that both MUC5AC up-regulation and AQP5 down-regulation play an important role in viscous COPD mucus secretions. The modulation effects of SAMC on LPS-induced MUC5AC and AQP5 productions in SPC-A1 cells were then evaluated. Pretreatment of the SPC-A1 cells with SAMC attenuated MUC5AC secretion and increased AQP5 expression in a dose-dependent manner in the non-cytotoxic concentration range of 20 to 100μM. Mechanistic studies suggested that SAMC could suppress the accumulation of MUC5AC mRNA and inhibit IкBα degradation and NF-кB p65 translocation. These results suggest that SAMC could be a promising candidate in the prevention and treatment of MUC5AC-associated disorders such as COPD.
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50
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Kallikrein in the Interstitial Space. Protein Sci 2016. [DOI: 10.1201/9781315374307-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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