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Bradding P, Porsbjerg C, Côté A, Dahlén SE, Hallstrand TS, Brightling CE. Airway hyperresponsiveness in asthma: The role of the epithelium. J Allergy Clin Immunol 2024; 153:1181-1193. [PMID: 38395082 DOI: 10.1016/j.jaci.2024.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/02/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
Airway hyperresponsiveness (AHR) is a key clinical feature of asthma. The presence of AHR in people with asthma provides the substrate for bronchoconstriction in response to numerous diverse stimuli, contributing to airflow limitation and symptoms including breathlessness, wheeze, and chest tightness. Dysfunctional airway smooth muscle significantly contributes to AHR and is displayed as increased sensitivity to direct pharmacologic bronchoconstrictor stimuli, such as inhaled histamine and methacholine (direct AHR), or to endogenous mediators released by activated airway cells such as mast cells (indirect AHR). Research in in vivo human models has shown that the disrupted airway epithelium plays an important role in driving inflammation that mediates indirect AHR in asthma through the release of cytokines such as thymic stromal lymphopoietin and IL-33. These cytokines upregulate type 2 cytokines promoting airway eosinophilia and induce the release of bronchoconstrictor mediators from mast cells such as histamine, prostaglandin D2, and cysteinyl leukotrienes. While bronchoconstriction is largely due to airway smooth muscle contraction, airway structural changes known as remodeling, likely mediated in part by epithelial-derived mediators, also lead to airflow obstruction and may enhance AHR. In this review, we outline the current knowledge of the role of the airway epithelium in AHR in asthma and its implications on the wider disease. Increased understanding of airway epithelial biology may contribute to better treatment options, particularly in precision medicine.
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Affiliation(s)
- Peter Bradding
- Department of Respiratory Sciences, Leicester Respiratory National Institute for Health and Care Research Biomedical Research Centre, Glenfield Hospital, University of Leicester, Leicester, United Kingdom
| | - Celeste Porsbjerg
- Department of Respiratory Medicine and Infectious Diseases, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark
| | - Andréanne Côté
- Quebec Heart and Lung Institute, Université Laval, Laval, Quebec, Canada; Department of Medicine, Université Laval, Laval, Quebec, Canada
| | - Sven-Erik Dahlén
- Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden; Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Stockholm, Sweden
| | - Teal S Hallstrand
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, Wash; Center for Lung Biology, University of Washington, Seattle, Wash.
| | - Christopher E Brightling
- Department of Respiratory Sciences, Leicester Respiratory National Institute for Health and Care Research Biomedical Research Centre, Glenfield Hospital, University of Leicester, Leicester, United Kingdom.
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Won J, Jo A, Kim S, Shin H, Kim HJ. Distinct dampening of IL-33 following inhalation of interferon-lambda in the respiratory epithelium of in vivo asthma. Allergy 2024. [PMID: 38205738 DOI: 10.1111/all.16010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/12/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024]
Affiliation(s)
- Jina Won
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea
| | - Ara Jo
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea
| | - Sujin Kim
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea
| | - Haeun Shin
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun Jik Kim
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea
- Seoul National University Hospital, Seoul, Korea
- Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul, Korea
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Ohira C, Tomita K, Kaneki M, Iwashita N, Takagi Y, Kurihara T, Nagane M, Kamiie J, Fukuyama T. Effects of low concentrations of ozone gas exposure on percutaneous oxygen saturation and inflammatory responses in a mouse model of Dermatophagoides farinae-induced asthma. Arch Toxicol 2023; 97:3151-3162. [PMID: 37733069 DOI: 10.1007/s00204-023-03593-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 08/24/2023] [Indexed: 09/22/2023]
Abstract
Ozone gas is widely used in hospitals as well as homes to control COVID-19 infection owing to its cost-effectiveness. Safety standard value and the tolerable value of ozone gas are set at 0.05 ppm and 0.1 ppm, respectively, in developed countries; however, this value was principally determined for healthy individuals, and the risks associated with ozone gas inhalation in patients with pulmonary diseases remains unknown. Recently, we demonstrated that 0.1 ppm ozone gas exposure significantly aggravates the symptoms of acute lung injury in mice. In the present study, we further examined the influence of ≤ 0.1 ppm ozone gas exposure on percutaneous oxygen saturation (SpO2) and pro-inflammatory responses in a mouse model of asthma. Female BALB/c mice were subjected to repetitive intranasal sensitization of Dermatophagoides farinae to generate a mouse model of asthma. Inhalation exposure of ozone gas (0.1, 0.03, 0.01 ppm), generated using an ultraviolet lamp, was performed for five consecutive days immediately before the final sacrifice. There were no abnormal findings in control mice exposed to 0.1 ppm ozone; however, 0.1 ppm ozone exposure significantly reduced the SpO2 level in asthmatic mice. Histological evaluation and gene expression analysis revealed that pro-inflammatory cytokine levels were significantly increased in mice exposed to 0.1 ppm ozone, indicating that 0.1 ppm ozone exposure affects the development of asthma symptoms. Notably, 0.03 and 0.01 ppm ozone exposure did not have any effects even in asthmatic mice. Our findings indicate that the tolerable level of ozone gas should be adjusted for individuals based on a history of respiratory disorders.
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Affiliation(s)
- Chiharu Ohira
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-Ku, Sagamihara-Shi, Kanagawa, 2525201, Japan
| | - Kengo Tomita
- Institute of Technology, Shimizu Corporation, 3-4-17 Etchujima, Koto-Ku, Tokyo, Japan
| | - Mao Kaneki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-Ku, Sagamihara-Shi, Kanagawa, 2525201, Japan
| | - Naoki Iwashita
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-Ku, Sagamihara-Shi, Kanagawa, 2525201, Japan
- Bioalch Co., Ltd., 3-28 Honshuku-Cho, Fuchu-Shi, Tokyo, Japan
| | - Yoshiichi Takagi
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-Ku, Sagamihara-Shi, Kanagawa, 2525201, Japan
- Japan SLC, Inc, 85 Ohara-Cho, Kita-Ku, Hamamatsu-Shi, Shizuoka, Japan
| | - Takashi Kurihara
- Institute of Technology, Shimizu Corporation, 3-4-17 Etchujima, Koto-Ku, Tokyo, Japan
| | - Masaki Nagane
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-Ku, Sagamihara-Shi, Kanagawa, 2525201, Japan
- Center for Human and Animal Symbiosis Science, Azabu University, Sagamihara, Kanagawa, Japan
| | - Junichi Kamiie
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-Ku, Sagamihara-Shi, Kanagawa, 2525201, Japan
- Center for Human and Animal Symbiosis Science, Azabu University, Sagamihara, Kanagawa, Japan
| | - Tomoki Fukuyama
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-Ku, Sagamihara-Shi, Kanagawa, 2525201, Japan.
- Center for Human and Animal Symbiosis Science, Azabu University, Sagamihara, Kanagawa, Japan.
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Chow YH, Murphy RC, An D, Lai Y, Altemeier WA, Manicone AM, Hallstrand TS. Intravascular Leukocyte Labeling Refines the Distribution of Myeloid Cells in the Lung in Models of Allergen-induced Airway Inflammation. Immunohorizons 2023; 7:853-860. [PMID: 38099934 PMCID: PMC10759158 DOI: 10.4049/immunohorizons.2300059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023] Open
Abstract
Innate immune cell populations are critical in asthma with different functional characteristics based on tissue location, which has amplified the importance of characterizing the precise number and location of innate immune populations in murine models of asthma. In this study, we performed premortem intravascular (IV) labeling of leukocytes in mice in two models of asthma to differentiate innate immune cell populations within the IV compartment versus those residing in the lung tissue or airway lumen. We performed spectral flow cytometry analysis of the blood, suspensions of digested lung tissue, and bronchoalveolar lavage fluid. We discovered that IV labeled leukocytes do not contaminate analysis of bronchoalveolar lavage fluid but represent a significant proportion of cells in digested lung tissue. Exclusion of IV leukocytes significantly improved the accuracy of the assessments of myeloid cells in the lung tissue and provided important insights into ongoing trafficking in both eosinophilic and neutrophilic asthma models.
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Affiliation(s)
- Yu-Hua Chow
- Division of Pulmonary, Critical Care, and Sleep Medicine and Center for Lung Biology, Department of Medicine, University of Washington, Seattle, WA 98109
| | - Ryan C. Murphy
- Division of Pulmonary, Critical Care, and Sleep Medicine and Center for Lung Biology, Department of Medicine, University of Washington, Seattle, WA 98109
| | - Dowon An
- Division of Pulmonary, Critical Care, and Sleep Medicine and Center for Lung Biology, Department of Medicine, University of Washington, Seattle, WA 98109
| | - Ying Lai
- Division of Pulmonary, Critical Care, and Sleep Medicine and Center for Lung Biology, Department of Medicine, University of Washington, Seattle, WA 98109
| | - William A. Altemeier
- Division of Pulmonary, Critical Care, and Sleep Medicine and Center for Lung Biology, Department of Medicine, University of Washington, Seattle, WA 98109
| | - Anne M. Manicone
- Division of Pulmonary, Critical Care, and Sleep Medicine and Center for Lung Biology, Department of Medicine, University of Washington, Seattle, WA 98109
| | - Teal S. Hallstrand
- Division of Pulmonary, Critical Care, and Sleep Medicine and Center for Lung Biology, Department of Medicine, University of Washington, Seattle, WA 98109
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Ando M, Yamaguchi H, Morimoto A, Iwashita N, Takagi Y, Nagane M, Yoshinari T, Fukuyama T. Chronic oral exposure to low-concentration fumonisin B2 significantly exacerbates the inflammatory responses of allergies in mice via inhibition of IL-10 release by regulatory T cells in gut-associated lymphoid tissue. Arch Toxicol 2023; 97:2707-2719. [PMID: 37589943 DOI: 10.1007/s00204-023-03579-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 08/03/2023] [Indexed: 08/18/2023]
Abstract
Contamination with fumonisins produced by Fusarium spp. is rapidly growing in both developing and developed countries. The purpose of this study was to determine whether oral exposure to fumonisin contributed to the development of allergic diseases. We initially examined the immunotoxic potential of short-term, oral administration of fumonisin B1 (FB1, 1 mg/kg) and fumonisin B2 (FB2, 1 mg/kg), both naturally occurring fumonisins, using a BALB/c mouse model of allergic contact dermatitis and Dermatophagoides farina-induced asthma. Using an NC/nga mouse model of atopic dermatitis (AD), we evaluated the adverse effects of subchronic oral exposure to low concentrations of FB2 (2 or 200 μg/kg). Finally, we explored the influence of FB2 on regulatory T cell proliferation and function in mesenteric lymph nodes after 1-week oral exposure to FB2 in BALB/c mice. Oral exposure to FB2 markedly exacerbated the symptoms of allergy, including skin thickness, histological evaluation, immunocyte proliferation, and proinflammatory cytokine production, although no change was observed following exposure to FB1. Furthermore, oral exposure to low concentrations of FB2 considerably exacerbated the AD scores, skin thickness, transepidermal water loss, histological features, and proinflammatory cytokine production. The aggravated allergic symptoms induced by oral exposure to FB2 could be attributed to the direct inhibition of IL-10 production by regulatory T cells in mesenteric lymph nodes. Our findings indicate that the recommended maximum fumonisin level should be reconsidered based on the potential for allergy development.
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Affiliation(s)
- Mana Ando
- School of Veterinary Medicine, Laboratory of Veterinary Pharmacology, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Hiroki Yamaguchi
- School of Veterinary Medicine, Laboratory of Veterinary Pharmacology, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Ai Morimoto
- School of Veterinary Medicine, Laboratory of Veterinary Pharmacology, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Naoki Iwashita
- School of Veterinary Medicine, Laboratory of Veterinary Pharmacology, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
- Bioalch Co., Ltd., 3-28 Honshuku-cho, Fuchu, Tokyo, Japan
| | - Yoshiichi Takagi
- School of Veterinary Medicine, Laboratory of Veterinary Pharmacology, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
- Japan SLC, Inc, 85 Ohara-cho, Kita-ku, Hamamatsu, Shizuoka, Japan
| | - Masaki Nagane
- School of Veterinary Medicine, Laboratory of Veterinary Pharmacology, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan
- Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, Japan
| | - Tomoya Yoshinari
- Division of Microbiology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa, Japan
| | - Tomoki Fukuyama
- School of Veterinary Medicine, Laboratory of Veterinary Pharmacology, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan.
- Center for Human and Animal Symbiosis Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, Japan.
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Davis BE, Gauvreau GM. The ABCs and DEGs (Differentially Expressed Genes) of Airway Hyperresponsiveness. Am J Respir Crit Care Med 2023; 207:1545-1546. [PMID: 37058325 PMCID: PMC10273106 DOI: 10.1164/rccm.202303-0614ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023] Open
Affiliation(s)
- Beth E Davis
- Department of Medicine University of Saskatchewan Saskatoon, Saskatchewan, Canada
| | - Gail M Gauvreau
- Department of Medicine McMaster University Hamilton, Ontario, Canada
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