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Foucaud L, Demoulin B, Leblanc AL, Ioan I, Schweitzer C, Demoulin-Alexikova S. Modulation of protective reflex cough by acute immune driven inflammation of lower airways in anesthetized rabbits. PLoS One 2019; 14:e0226442. [PMID: 31887143 PMCID: PMC6936810 DOI: 10.1371/journal.pone.0226442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 11/26/2019] [Indexed: 11/19/2022] Open
Abstract
Chronic irritating cough in patients with allergic disorders may reflect behavioral or reflex response that is inappropriately matched to the stimulus present in the respiratory tract. Such dysregulated response is likely caused by sensory nerve damage driven by allergic mediators leading to cough hypersensitivity. Some indirect findings suggest that even acid-sensitive, capsaicin-insensitive A-δ fibers called “cough receptors” that are likely responsible for protective reflex cough may be modulated through immune driven inflammation. The aim of this study was to find out whether protective reflex cough is altered during acute allergic airway inflammation in rabbits sensitized to ovalbumin. In order to evaluate the effect of such inflammation exclusively on protective reflex cough, C-fiber mediated cough was silenced using general anesthesia. Cough provocation using citric acid inhalation and mechanical stimulation of trachea was realized in 16 ovalbumin (OVA) sensitized, anesthetized and tracheotomised rabbits 24h after OVA (OVA group, n = 9) or saline challenge (control group, n = 7). Number of coughs provoked by citric acid inhalation did not differ between OVA and control group (12,2 ±6,1 vs. 17,9 ± 6,9; p = 0.5). Allergic airway inflammation induced significant modulation of cough threshold (CT) to mechanical stimulus. Mechanically induced cough reflex in OVA group was either up-regulated (subgroup named “responders” CT: 50 msec (50–50); n = 5 p = 0.003) or down-regulated (subgroup named “non responders”, CT: 1200 msec (1200–1200); n = 4 p = 0.001) when compared to control group (CT: 150 msec (75–525)). These results advocate that allergen may induce longer lasting changes of reflex cough pathway, leading to its up- or down-regulation. These findings may be of interest as they suggest that effective therapies for chronic cough in allergic patients should target sensitized component of both, reflex and behavioral cough.
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Affiliation(s)
- Laurent Foucaud
- Research Unit EA 3450 DevAH—Development, Adaptation and Handicap, Campus Biologie Santé, University of Lorraine, Vandœuvre-Lès-Nancy, France
| | - Bruno Demoulin
- Research Unit EA 3450 DevAH—Development, Adaptation and Handicap, Campus Biologie Santé, University of Lorraine, Vandœuvre-Lès-Nancy, France
| | - Anne-Laure Leblanc
- Research Unit EA 3450 DevAH—Development, Adaptation and Handicap, Campus Biologie Santé, University of Lorraine, Vandœuvre-Lès-Nancy, France
| | - Iulia Ioan
- Research Unit EA 3450 DevAH—Development, Adaptation and Handicap, Campus Biologie Santé, University of Lorraine, Vandœuvre-Lès-Nancy, France
- Department of Pediatric Functional Testing, Hôpital d’Enfants, CHRU de Nancy, Vandoeuvre-Les-Nancy, France
| | - Cyril Schweitzer
- Research Unit EA 3450 DevAH—Development, Adaptation and Handicap, Campus Biologie Santé, University of Lorraine, Vandœuvre-Lès-Nancy, France
- Department of Pediatric Functional Testing, Hôpital d’Enfants, CHRU de Nancy, Vandoeuvre-Les-Nancy, France
| | - Silvia Demoulin-Alexikova
- Research Unit EA 3450 DevAH—Development, Adaptation and Handicap, Campus Biologie Santé, University of Lorraine, Vandœuvre-Lès-Nancy, France
- Department of Pediatric Functional Testing, Hôpital d’Enfants, CHRU de Nancy, Vandoeuvre-Les-Nancy, France
- * E-mail:
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Nino G, Hu A, Grunstein JS, McDonough J, Kreiger PA, Josephson MB, Choi JK, Grunstein MM. G Protein βγ-subunit signaling mediates airway hyperresponsiveness and inflammation in allergic asthma. PLoS One 2012; 7:e32078. [PMID: 22384144 PMCID: PMC3284547 DOI: 10.1371/journal.pone.0032078] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 01/23/2012] [Indexed: 01/11/2023] Open
Abstract
Since the Gβγ subunit of Gi protein has been importantly implicated in regulating immune and inflammatory responses, this study investigated the potential role and mechanism of action of Gβγ signaling in regulating the induction of airway hyperresponsiveness (AHR) in a rabbit model of allergic asthma. Relative to non-sensitized animals, OVA-sensitized rabbits challenged with inhaled OVA exhibited AHR, lung inflammation, elevated BAL levels of IL-13, and increased airway phosphodiesterase-4 (PDE4) activity. These proasthmatic responses were suppressed by pretreatment with an inhaled membrane-permeable anti-Gβγ blocking peptide, similar to the suppressive effect of glucocorticoid pretreatment. Extended mechanistic studies demonstrated that: 1) corresponding proasthmatic changes in contractility exhibited in isolated airway smooth muscle (ASM) sensitized with serum from OVA-sensitized+challenged rabbits or IL-13 were also Gβγ-dependent and mediated by MAPK-upregulated PDE4 activity; and 2) the latter was attributed to Gβγ-induced direct stimulation of the non-receptor tyrosine kinase, c-Src, resulting in downstream activation of ERK1/2 and its consequent transcriptional upregulation of PDE4. Collectively, these data are the first to identify that a mechanism involving Gβγ-induced direct activation of c-Src, leading to ERK1/2-mediated upregulation of PDE4 activity, plays a decisive role in regulating the induction of AHR and inflammation in a rabbit model of allergic airway disease.
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Affiliation(s)
- Gustavo Nino
- Division of Pulmonary Medicine, Children's Hospital of Philadelphia Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America
- Division of Pediatric Pulmonary and Sleep Medicine, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, United States of America
| | - Aihua Hu
- Division of Pulmonary Medicine, Children's Hospital of Philadelphia Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Judith S. Grunstein
- Division of Pulmonary Medicine, Children's Hospital of Philadelphia Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Joseph McDonough
- Division of Pulmonary Medicine, Children's Hospital of Philadelphia Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Portia A. Kreiger
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America
- Department of Pathology, Nemours/A.I. duPont Hospital for Children, Wilmington, Delaware, United States of America
| | - Maureen B. Josephson
- Division of Pulmonary Medicine, Children's Hospital of Philadelphia Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - John K. Choi
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Michael M. Grunstein
- Division of Pulmonary Medicine, Children's Hospital of Philadelphia Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America
- * E-mail:
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Bailey SR, Boustany S, Burgess JK, Hirst SJ, Sharma HS, Simcock DE, Suravaram PR, Weckmann M. Airway vascular reactivity and vascularisation in human chronic airway disease. Pulm Pharmacol Ther 2009; 22:417-25. [PMID: 19409504 DOI: 10.1016/j.pupt.2009.04.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2008] [Revised: 04/01/2009] [Accepted: 04/21/2009] [Indexed: 10/20/2022]
Abstract
Altered bronchial vascular reactivity and remodelling including angiogenesis are documented features of asthma and other chronic inflammatory airway diseases. Expansion of the bronchial vasculature under these conditions involves both functional (vasodilation, hyperperfusion, increased microvascular permeability, oedema formation, and inflammatory cell recruitment) and structural changes (tissue and vascular remodelling) in the airways. These changes in airway vascular reactivity and vascularisation have significant pathophysiological consequences, which are manifest in the clinical symptoms of airway disease. Airway vascular reactivity is regulated by a wide variety of neurotransmitters and inflammatory mediators. Similarly, multiple growth factors are implicated in airway angiogenesis, with vascular endothelial growth factor amongst the most important. Increasing attention is focused on the complex interplay between angiogenic growth factors, airway smooth muscle and the various collagen-derived fragments that exhibit anti-angiogenic properties. The balance of these dynamic influences in airway neovascularisation processes and their therapeutic implications is just beginning to be elucidated. In this review article, we provide an account of recent developments in the areas of vascular reactivity and airway angiogenesis in chronic airway diseases.
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Affiliation(s)
- Simon R Bailey
- Faculty of Veterinary Science, University of Melbourne, Victoria, Australia.
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Kapilevich LV, Nosarev AV, Djakova EJ, Ogorodova LM, Zaitseva TN, Davletjarova KV, Kovalev IV, Baskakov MB, Sazonov AE, Medvedev MA. Specific adrenergic responses of smooth muscles in the vascular wall of guinea pig pulmonary arteries during ovalbumin sensitization. Bull Exp Biol Med 2008; 145:673-5. [DOI: 10.1007/s10517-008-0178-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Rydell-Törmänen K, Johnson JR, Fattouh R, Jordana M, Erjefält JS. Induction of vascular remodeling in the lung by chronic house dust mite exposure. Am J Respir Cell Mol Biol 2008; 39:61-7. [PMID: 18314535 DOI: 10.1165/rcmb.2007-0441oc] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Structural changes to the lung are associated with chronic asthma. In addition to alterations to the airway wall, asthma is associated with vascular modifications, although this aspect of remodeling is poorly understood. We sought to evaluate the character and kinetics of vascular remodeling in response to chronic aeroallergen exposure. Because many ovalbumin-driven models used to investigate allergic airway disease do so in the absence of persistent airway inflammation, we used a protocol of chronic respiratory exposure to house dust mite extract (HDME), which has been shown to induce persistent airway inflammation consistent with that seen in humans with asthma. Mice were exposed to HDME intranasally for 7 or 20 consecutive weeks, and resolution of the inflammatory and remodeling response to allergen was investigated 4 weeks after the end of a 7-week exposure protocol. Measures of vascular remodeling, including total collagen deposition, procollagen I production, endothelial and smooth muscle cell proliferation, smooth muscle area, and presence of myofibroblasts, were investigated histologically in lung vessels of different sizes and locations. We observed an increase in total collagen content, which did not resolve upon cessation of allergen exposure. Other parameters were significantly increased after 7 and/or 20 weeks of allergen exposure but returned to baseline after allergen withdrawal. We conclude that respiratory HDME exposure induces airway remodeling and pulmonary vascular remodeling, and, in accordance with airway remodeling, some components of these structural changes may be irreversible.
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Affiliation(s)
- Kristina Rydell-Törmänen
- Department of Experimental Medical Science, Division of Vascular and Airway Research, BMC D12, S-22184 Lund, Sweden.
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Hu HJ, Dai DZ. L-thyroxine affects involvement of H1, 5-HT2, prostaglandin receptors and the endothelial NO system in allergic vascular response in guinea pigs. Drug Dev Res 2003. [DOI: 10.1002/ddr.10141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Horvath G, Torbati A, Conner GE, Salathe M, Wanner A. Systemic ovalbumin sensitization downregulates norepinephrine uptake by rabbit aortic smooth muscle cells. Am J Respir Cell Mol Biol 2002; 27:746-51. [PMID: 12444035 DOI: 10.1165/rcmb.2002-0030oc] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Norepinephrine (NE) concentration at alpha-adrenergic receptors is partially regulated by steroid-sensitive, extraneuronal catecholamine uptake (uptake-2). Because alpha(1)-adrenergic agonist- and glucocorticosteroid (GS)-induced bronchial vasoconstriction is enhanced in individuals with asthma, atopy could be associated with decreased uptake-2 by vascular smooth muscle cells (SMCs). We therefore evaluated whether NE uptake and its specific transporter messenger RNA (mRNA) were reduced in aortic SMCs of rabbits systemically sensitized with ovalbumin (OVA). NE uptake was measured using a semiquantitative fluorescence microscopic method. Corticosterone and O-methyl-isoprenaline, but not desipramine, co-incubation (1 micro M each) for 20 min decreased NE uptake into SMCs, an inhibitor profile indicative of extraneuronal monoamine transporter (EMT). In OVA-sensitized rabbits, NE uptake was 25.9 +/- 4.5% (mean +/- SEM) lower than in control animals (P < 0.05). Sensitized serum had no effect on NE uptake into naive SMCs. EMT mRNA expression was measured in aortic smooth muscle, using multiplex reverse transcriptase-polymerase chain reaction. In OVA-sensitized rabbits, expression was 61.1 +/- 16.4% lower than in control animals (P < 0.05). These data demonstrate that NE uptake by aortic SMCs is impaired in atopic rabbits, and associated with a decreased transporter mRNA expression. The same mechanism may operate in bronchial arteries in individuals with asthma.
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Affiliation(s)
- Gabor Horvath
- Division of Pulmonary and Critical Care Medicine, and Department of Cell Biology and Anatomy, University of Miami School of Medicine, Miami, Florida 33101, USA
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Brieva J, Wanner A. Adrenergic airway vascular smooth muscle responsiveness in healthy and asthmatic subjects. J Appl Physiol (1985) 2001; 90:665-9. [PMID: 11160067 DOI: 10.1152/jappl.2001.90.2.665] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The purpose of the present study was to determine the responsiveness of airway vascular smooth muscle (AVSM) as assessed by airway mucosal blood flow (Qaw) to inhaled methoxamine (alpha(1)-agonist; 0.6-2.3 mg) and albuterol (beta(2)-agonist; 0.2-1.2 mg) in healthy [n = 11; forced expiratory volume in 1 s, 92 +/- 4 (SE) % of predicted] and asthmatic (n = 11, mean forced expiratory volume in 1 s, 81 +/- 5%) adults. Mean baseline values for Qaw were 43.8 +/- 0.7 and 54.3 +/- 0.8 microl. min(-1). ml(-1) of anatomic dead space in healthy and asthmatic subjects, respectively (P < 0.05). After methoxamine inhalation, the maximal mean change in Qaw was -13.5 +/- 1.0 microl. min(-1). ml(-1) in asthmatic and -7.1 +/- 2.1 microl. min(-1). ml(-1) in healthy subjects (P < 0.05). After albuterol, the mean maximal change in Qaw was 3.0 +/- 0.8 microl. min(-1). ml(-1) in asthmatic and 14.0 +/- 1.1 microl. min(-1). ml(-1) in healthy subjects (P < 0.05). These results demonstrate that the contractile response of AVSM to alpha(1)-adrenoceptor activation is enhanced and the dilator response of AVSM to beta(2)-adrenoceptor activation is blunted in asthmatic subjects.
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Affiliation(s)
- J Brieva
- Division of Pulmonary and Critical Care Medicine, University of Miami School of Medicine at Mount Sinai Medical Center, Miami Beach, Florida 33140, USA
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