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Kan-O K. Asthma-related death trends and biologics use for severe asthma in the super-aged society of Japan. Respirology 2024. [PMID: 38651273 DOI: 10.1111/resp.14729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Affiliation(s)
- Keiko Kan-O
- Department of Respiratory Medicine, Tokyo Women's Medical University, Tokyo, Japan
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Akasaki Y, Iwagami M, Sung J, Nagino K, Adachi T, Morita H, Tamari M, Kainuma K, Kan-O K, Ogata H, Sakashita M, Futamura M, Kurashima Y, Nakajima S, Masaki K, Ogawa Y, Sato S, Miyagawa A, Midorikawa-Inomata A, Fujimoto K, Okumura Y, Fujio K, Huang T, Hirosawa K, Morooka Y, Nakao S, Murakami A, Kobayashi H, Inomata T. Impact of COVID-19 on care-seeking patterns for hay fever in Japan: A retrospective claims database cohort study. Allergy 2024; 79:1056-1060. [PMID: 37966466 DOI: 10.1111/all.15947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/02/2023] [Accepted: 11/05/2023] [Indexed: 11/16/2023]
Affiliation(s)
- Yasutsugu Akasaki
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- ENGAGE-Task Force, Tokyo, Japan
| | - Masao Iwagami
- Department of Health Services Research, Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Jaemyoung Sung
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ken Nagino
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Telemedicine and Mobile Health, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takeya Adachi
- ENGAGE-Task Force, Tokyo, Japan
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
- Department of Medical Regulatory Science, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hideaki Morita
- ENGAGE-Task Force, Tokyo, Japan
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - Mayumi Tamari
- ENGAGE-Task Force, Tokyo, Japan
- Division of Molecular Genetics, Research Center for Medical Science, The Jikei University School of Medicine, Tokyo, Japan
| | - Keigo Kainuma
- ENGAGE-Task Force, Tokyo, Japan
- Institute for Clinical Research, National Hospital Organization, Mie National Hospital, Mie, Japan
| | - Keiko Kan-O
- ENGAGE-Task Force, Tokyo, Japan
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroaki Ogata
- ENGAGE-Task Force, Tokyo, Japan
- Department of Respiratory Medicine, NHO Fukuoka National Hospital, Fukuoka, Japan
| | - Masafumi Sakashita
- ENGAGE-Task Force, Tokyo, Japan
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, University of Fukui, Fukui, Japan
| | - Masaki Futamura
- ENGAGE-Task Force, Tokyo, Japan
- Department of Pediatrics, National Hospital Organization Nagoya Medical Center, Aichi, Japan
| | - Yosuke Kurashima
- ENGAGE-Task Force, Tokyo, Japan
- Department of Innovative Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Institute for Advanced Academic Research, Chiba University, Chiba, Japan
- International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Pathology/Medicine, Allergy and Vaccines, CU-UCSD Center for Mucosal Immunology, University of California, San Diego, California, USA
- Mucosal Immunology and Allergy Therapeutics, Institute for Global Prominent Research, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Saeko Nakajima
- ENGAGE-Task Force, Tokyo, Japan
- Department of Drug Discovery for Inflammatory Skin Diseases, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Katsunori Masaki
- ENGAGE-Task Force, Tokyo, Japan
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yasushi Ogawa
- ENGAGE-Task Force, Tokyo, Japan
- Department of Advanced Medicine, Nagoya University Hospital, Aichi, Japan
| | - Sakura Sato
- ENGAGE-Task Force, Tokyo, Japan
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, NHO Sagamihara National Hospital, Kanagawa, Japan
| | - Akihiro Miyagawa
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Akie Midorikawa-Inomata
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Telemedicine and Mobile Health, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Keiichi Fujimoto
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yuichi Okumura
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Telemedicine and Mobile Health, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kenta Fujio
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tianxiang Huang
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kunihiko Hirosawa
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yuki Morooka
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shintaro Nakao
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akira Murakami
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiroyuki Kobayashi
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takenori Inomata
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- ENGAGE-Task Force, Tokyo, Japan
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Telemedicine and Mobile Health, Juntendo University Graduate School of Medicine, Tokyo, Japan
- AI Incubation Farm, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Hata K, Tsubouchi K, Suzuki K, Eto D, Ando H, Yanagihara T, Kan-O K, Okamoto I. Surfactant protein D prevents mucin overproduction in airway goblet cells via SIRPα. Sci Rep 2024; 14:1799. [PMID: 38245585 PMCID: PMC10799941 DOI: 10.1038/s41598-024-52328-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/17/2024] [Indexed: 01/22/2024] Open
Abstract
Mucin overproduction is a common feature of chronic airway diseases such as asthma and chronic obstructive pulmonary disease (COPD), and exacerbates their underlying respiratory condition. Surfactant protein D (SP-D) protects against airway diseases through modulation of immune reactions, but whether it also exerts direct effects on airway epithelial cells has remained unclear. Therefore, we sought to investigate the inhibitory role of SP-D on mucin production in airway epithelial cells. We prepared air-liquid interface (ALI) cultures of human primary bronchial epithelial cells (HBECs), which recapitulated a well-differentiated human airway epithelium. Benzo(a)pyrene (BaP), a key toxicant in cigarette smoke, induced mucin 5AC (MUC5AC) production in ALI-cultured HBECs, airway secretory cell lines, and airway epithelia of mice. Then, the protective effects of SP-D against the BaP-induced mucin overproduction were examined. BaP increased MUC5AC production in ALI cultures of HBECs, and this effect was attenuated by SP-D. SP-D also suppressed the BaP-induced phosphorylation of extracellular signal-regulated kinase (ERK) and MUC5AC expression in NCI-H292 goblet-like cells, but not in NCI-H441 club-like cells. Signal regulatory protein α (SIRPα) was found to be expressed in HBECs and NCI-H292 cells but absent in NCI-H441 cells. In NCI-H292 cells, SP-D activated SH2 domain-containing tyrosine phosphatase-1 (SHP-1), downstream of SIRPα, and knockdown of SIRPα abolished the suppressive effects of SP-D on BaP-induced ERK phosphorylation and MUC5AC production. Consistent with these in vitro findings, intratracheal instillation of SP-D prevented the BaP-induced phosphorylation of ERK and Muc5ac expression in airway epithelial cells in a mouse model. SP-D acts directly on airway epithelial cells to inhibit mucin secretion through ligation of SIRPα and SHP-1-mediated dephosphorylation of ERK. Targeting of SIRPα is therefore a potential new therapeutic approach to suppression of mucin hypersecretion in chronic airway diseases such as COPD and asthma.
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Affiliation(s)
- Kentaro Hata
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Kazuya Tsubouchi
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan.
| | - Kunihiro Suzuki
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Daisuke Eto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Hiroyuki Ando
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Toyoshi Yanagihara
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Keiko Kan-O
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Isamu Okamoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
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Kan-O K, Noda T, Ogata H, Masaki K, Nishioka Y, Myojin T, Adachi T, Morita H, Imamura T, Tamari M, Kainuma K. Insights from the trends of omalizumab and mepolizumab utilization in patients with asthma: A population-based cohort study using the National Database in Japan. Respir Investig 2024; 62:113-120. [PMID: 38101278 DOI: 10.1016/j.resinv.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/08/2023] [Accepted: 11/22/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Biologics are increasingly being used in patients with severe uncontrolled asthma. However, the trends in their use for treating severe asthma in Japan remain unclear. METHODS The number of patients with asthma prescribed omalizumab or mepolizumab between April 2017 and March 2018 was estimated according to sex, age, and geographical region using data from the National Database of Health Insurance Claims and Specific Health Checkups of Japan. RESULTS Overall, 5,014, 3,449 and 7,977 patients were prescribed omalizumab, mepolizumab, or either combination, respectively. The total number of patients prescribed biologics displayed a bimodal distribution with peaks in their early teens and seventies. Biologics were most commonly used by male and female patients in their seventies. Prescription was 1.24 times higher in males than in females up to the teenage years, whereas it was 1.95 times higher in females than in males from their twenties onwards. Omalizumab was prescribed 1.45 times more frequently than mepolizumab, especially in pediatric patients, and was prescribed 1.96 times more often to female patients than to male patients. Regional differences were observed in the proportion of patients prescribed biologics. Correlation analysis suggested a weak relationship (r = 0.3226, p = 0.0270) between the proportion of patients prescribed biologics and board-certified allergists according to the geographic region. CONCLUSIONS In Japan, biologics are prescribed more often to older patients with severe asthma compared to those in other countries. Thus, eliminating the regional disparities in asthma treatment by specialists is necessary to provide appropriate medical care to patients with severe asthma.
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Affiliation(s)
- Keiko Kan-O
- ENGAGE NDB Task Force, Tokyo, Japan; Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Tatsuya Noda
- Department of Public Health, Health Management and Policy, Nara Medical University, Nara, Japan
| | - Hiroaki Ogata
- ENGAGE NDB Task Force, Tokyo, Japan; Department of Respiratory Medicine, National Hospital Organization Fukuoka National Hospital, Fukuoka, Japan
| | - Katsunori Masaki
- ENGAGE NDB Task Force, Tokyo, Japan; Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan; Keio Allergy Center, Keio University Hospital, Tokyo, Japan
| | - Yuichi Nishioka
- Department of Public Health, Health Management and Policy, Nara Medical University, Nara, Japan
| | - Tomoya Myojin
- Department of Public Health, Health Management and Policy, Nara Medical University, Nara, Japan
| | - Takeya Adachi
- ENGAGE NDB Task Force, Tokyo, Japan; Keio Allergy Center, Keio University Hospital, Tokyo, Japan; Department of Dermatology, Keio University School of Medicine, Tokyo, Japan; Department of Medical Regulatory Science, Kyoto Prefecture University of Medicine, Graduate School of Medical Science, Kyoto, Japan; Keio Frontier Research & Education Collaborative Square (K-FRECS) at Tonomachi, Keio University, Kanagawa, Japan
| | - Hideaki Morita
- ENGAGE NDB Task Force, Tokyo, Japan; Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo, Japan; Allergy Center, National Center for Child Health and Development, Tokyo, Japan
| | - Tomoaki Imamura
- Department of Public Health, Health Management and Policy, Nara Medical University, Nara, Japan
| | - Mayumi Tamari
- Division of Molecular Genetics, The Jikei University School of Medicine, Research Centre for Medical Science, Tokyo, Japan
| | - Keigo Kainuma
- ENGAGE NDB Task Force, Tokyo, Japan; Institute for Clinical Research, National Hospital Organization Mie National Hospital, Mie, Japan.
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Kan-O K, Washio Y, Oki T, Fujimoto T, Ninomiya T, Yoshida M, Fujita M, Nakanishi Y, Matsumoto K. Effects of treatment with corticosteroids on human rhinovirus-induced asthma exacerbations in pediatric inpatients: a prospective observational study. BMC Pulm Med 2023; 23:487. [PMID: 38053068 DOI: 10.1186/s12890-023-02798-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 11/30/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND Human rhinoviruses (HRVs) infection is a common cause of exacerbations in pediatric patients with asthma. However, the effects of corticosteroids on HRV-induced exacerbations in pediatric asthma are unknown. We conducted a prospective observational study to determine the viral pathogens in school-age pediatric inpatients with asthma exacerbations. We assessed the effects of maintenance inhaled corticosteroids (ICS) on the detection rates of HRV species and treatment periods of systemic corticosteroids during exacerbations on pulmonary lung function after exacerbations. METHODS Nasopharyngeal samples and clinical information were collected from 59 patients with asthma exacerbations between April 2018 and March 2020. Pulmonary function tests were carried out 3 months after exacerbations in 18 HRV-positive patients. Changes in forced expiratory volume in 1 second (FEV1)% predicted from baseline in a stable state were compared according to the treatment periods of systemic corticosteroids. RESULTS Fifty-four samples collected from hospitalized patients were analyzed, and viral pathogens were identified in 45 patients (83.3%) using multiplex PCR assay. HRV-A, -B, and -C were detected in 16 (29.6%), one (1.9%), and 16 (29.6%) patients, respectively. The detection rates of HRV-C were lower in the ICS-treated group compared with those in the ICS-untreated group (p = 0.01), whereas maintenance ICS treatment did not affect the detection rate for viral pathogens in total and HRV-A. Changes in FEV1% predicted in patients treated with systemic corticosteroids for 6-8 days (n = 10; median, 4.90%) were higher than those in patients treated for 3-5 days (n = 8; median, - 10.25%) (p = 0.0085). CONCLUSIONS Maintenance ICS reduced the detection rates of HRV (mainly HRV-C) in school-age inpatients with asthma exacerbations, and the treatment periods of systemic corticosteroids during exacerbations affected lung function after HRV-induced exacerbations. The protective effects of corticosteroids on virus-induced asthma exacerbations may be dependent upon the types of viral pathogen.
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Affiliation(s)
- Keiko Kan-O
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Yasuyoshi Washio
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takeshi Oki
- Division of Pediatrics, National Hospital Organization Fukuoka National Hospital, Fukuoka, Japan
| | - Tsuguto Fujimoto
- Department of Fungal Infection, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takahito Ninomiya
- Division of Pediatrics, National Hospital Organization Fukuoka National Hospital, Fukuoka, Japan
| | - Makoto Yoshida
- Division of Respiratory Medicine, National Hospital Organization Fukuoka National Hospital, Fukuoka, Japan
| | - Masaki Fujita
- Department of Respiratory Medicine, Fukuoka University School of Medicine, Fukuoka, Japan
| | - Yoichi Nakanishi
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Koichiro Matsumoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
- Division of Respirology, Department of Medicine, Fukuoka Dental College, Fukuoka, Japan
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Kawatoko K, Washio Y, Ohara T, Fukuyama S, Honda T, Hata J, Nakazawa T, Kan-O K, Inoue H, Matsumoto K, Nakao T, Kitazono T, Okamoto I, Ninomiya T. Risks of dementia in a general Japanese older population with preserved ratio impaired spirometry: The Hisayama Study. J Epidemiol 2023:JE20230207. [PMID: 38044087 DOI: 10.2188/jea.je20230207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023] Open
Abstract
BACKGROUND Studies on the association between preserved ratio impaired spirometry (PRISm) and dementia are limited. Indeed, PRISm has often been overlooked or ignored as an index of lung function impairment. Therefore, we investigated the association of PRISm with the risk for the development of dementia in an older Japanese population. METHODS A total of 1202 community-dwelling, older Japanese participants aged ≥65 years without dementia were followed up for a median of 5.0 years. Participants were categorized by spirometry as follows: normal spirometry (FEV1/FVC ≥0.70 and FEV1 ≥80% predicted), PRISm (≥0.70 and <80%), airflow limitation (AFL) Global Initiative for Chronic Obstructive Lung Disease (GOLD) 1 (<0.70 and ≥80%), and AFL GOLD 2 to 4 (<0.70 and <80%). Hazard ratios (HRs) and their 95% confidence intervals (CIs) were computed using a Cox proportional hazards model. RESULTS During the follow-up period, 122 participants developed dementia. The age- and sex-adjusted incidences of dementia in the participants with normal spirometry, PRISm, AFL GOLD 1, and AFL GOLD 2 to 4 were 20.5, 37.0, 18.4, and 28.6 per 1000 person-years, respectively. Participants with PRISm had a higher risk of dementia (HR 2.04 [95%CI, 1.19-3.49]) than those with normal spirometry after adjusting for confounders. Moreover, both reduced FEV1% predicted values and FVC% predicted values were associated with the risk for dementia. CONCLUSION PRISm was associated with an increased risk of dementia in a general older Japanese population.
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Affiliation(s)
- Kenji Kawatoko
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University
| | - Yasuyoshi Washio
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University
| | - Tomoyuki Ohara
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University
| | - Satoru Fukuyama
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University
- Department of Respiratory Medicine, National Hospital Organization Omuta National Hospital
| | - Takanori Honda
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University
| | - Jun Hata
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University
| | - Taro Nakazawa
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University
| | - Keiko Kan-O
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University
| | - Hiromasa Inoue
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University
| | - Koichiro Matsumoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University
- Division of Respiratory Medicine, Fukuoka Dental College Medical and Dental Hospital
| | - Tomohiro Nakao
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University
| | - Takanari Kitazono
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University
| | - Isamu Okamoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University
| | - Toshiharu Ninomiya
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University
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7
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Kan-O K. The 63rd Annual Meeting of the Japanese Respiratory Society. Respirology 2023. [PMID: 37259804 DOI: 10.1111/resp.14530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Affiliation(s)
- Keiko Kan-O
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Khoa ND, Li S, Phuong NL, Kuga K, Yabuuchi H, Kan-O K, Matsumoto K, Ito K. Computational fluid-particle dynamics modeling of ultrafine to coarse particles deposition in the human respiratory system, down to the terminal bronchiole. Comput Methods Programs Biomed 2023; 237:107589. [PMID: 37167881 DOI: 10.1016/j.cmpb.2023.107589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/27/2023] [Accepted: 05/05/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND AND OBJECTIVES Suspended respirable airborne particles are associated with human health risks and especially particles within the range of ultrafine (< 0.1 μm) or fine (< 2.5 μm) have a high possibility of penetrating the lung region, which is concerned to be closely related to the bronchial or alveoli tissue dosimetry. Nature complex structure of the respiratory system requires much effort to explore and comprehend the flow and the inhaled particle dynamics for precise health risk assessment. Therefore, this study applied the computational fluid-particle dynamics (CFPD) method to elucidate the deposition characteristics of ultrafine-to-coarse particles in the human respiratory tract from nostrils to the 16th generation of terminal bronchi. METHODS The realistic bronchi up to the 8th generation are precisely and perfectly generated from computed tomography (CT) images, and an artificial model compensates for the 9th-16th bronchioles. Herein, the steady airflow is simulated at constant breathing flow rates of 7.5, 15, and 30 L/min, reproducing human resting-intense activity. Then, trajectories of the particle size ranging from 0.002 - 10 μm are tracked using a discrete phase model. RESULTS Here, we report reliable results of airflow patterns and particle deposition efficiency in the human respiratory system validated against experimental data. The individual-related focal point of ultrafine and fine particles deposition rates was actualized at the 8th generation; whilst the hot-spot of the deposited coarse particles was found in the 6th generation. Lobar deposition characterizes the dominance of coarse particles deposited in the right lower lobe, whereas the left upper-lower and right lower lobes simultaneously occupy high deposition rates for ultrafine particles. Finally, the results indicate a higher deposition in the right lung compared to its counterpart. CONCLUSIONS From the results, the developed realistic human respiratory system down to the terminal bronchiole in this study, in coupling with the CFPD method, delivers the accurate prediction of a wide range of particles in terms of particle dosimetry and visualization of site-specific in the consecutive respiratory system. In addition, the series of CFPD analyses and their results are to offer in-depth information on particle behavior in human bronchioles, which may benefit health risk assessment or drug delivery studies.
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Affiliation(s)
- Nguyen Dang Khoa
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
| | - Sixiao Li
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - Nguyen Lu Phuong
- Faculty of Environment, University of Natural Resources and Environment, Ho Chi Minh, Viet Nam
| | - Kazuki Kuga
- Faculty of Engineering Sciences, Kyushu University, Fukuoka, Japan
| | - Hidetake Yabuuchi
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keiko Kan-O
- Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koichiro Matsumoto
- Division of Respirology, Department of Medicine, Fukuoka Dental College, Fukuoka, Japan
| | - Kazuhide Ito
- Faculty of Engineering Sciences, Kyushu University, Fukuoka, Japan.
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Kan-O K. Transition towards the new normal. Respirology 2023; 28:289. [PMID: 36722469 DOI: 10.1111/resp.14462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 01/20/2023] [Indexed: 02/02/2023]
Affiliation(s)
- Keiko Kan-O
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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10
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Washio Y, Sakata S, Fukuyama S, Honda T, Kan-O K, Shibata M, Hata J, Inoue H, Kitazono T, Matsumoto K, Ninomiya T. Risks of Mortality and Airflow Limitation in Japanese with Preserved Ratio Impaired Spirometry. Am J Respir Crit Care Med 2022; 206:563-572. [PMID: 35549659 DOI: 10.1164/rccm.202110-2302oc] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Several Western studies have reported that participants with preserved ratio impaired spirometry (PRISm) have higher risks of airflow limitation (AFL) and death. However, evidence in East Asian populations is limited. OBJECTIVES To investigate the relation between PRISm and the risks of death and incident AFL in a Japanese population. METHODS A total of 3,032 community-dwelling Japanese participants aged ≥40 years were followed up for a median of 5.3 years by annual spirometry examinations. Participants were classified into lung function categories at baseline as follows: normal spirometry (forced expiratory volume in 1 second/forced vital capacity (FEV1/FVC) ≥0.70 and FEV1 ≥80% predicted), PRISm (≥0.70 and <80%), AFL Global Initiative for Chronic Obstructive Lung Disease (GOLD) 1 (<0.70 and ≥80%), and AFL GOLD 2-4 (<0.70 and <80%). Hazard ratios (HRs) and their 95% confidence intervals (CIs) were computed using a Cox proportional hazard model. MEASUREMENTS AND MAIN RESULTS During the follow-up period, 131 participants died, 22 of whom died from cardiovascular disease, and 218 participants developed AFL. When examining the prognosis of each baseline pulmonary function category, participants with PRISm had higher risks of all-cause death (HR 2.20 [95%CI: 1.35 to 3.59]) and cardiovascular death (HR 4.07 [1.07 to 15.42]) than those with normal spirometry after adjusting for confounders. Moreover, the multivariable-adjusted risk of incident AFL was greater in participants with PRISm than in those with normal spirometry (HR 2.48 [1.83 to 3.36]). CONCLUSIONS PRISm was associated with higher risks of all-cause and cardiovascular death and a greater risk of the development of AFL in a Japanese community.
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Affiliation(s)
- Yasuyoshi Washio
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Respiratory medicine, Fukuoka, Japan.,Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Department of Epidemiology and Public Health, Fukuoka, Japan
| | - Satoko Sakata
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Department of Epidemiology and Public Health, Fukuoka, Japan.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, Fukuoka, Japan.,Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, Fukuoka, Japan;
| | - Satoru Fukuyama
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Respiratory medicine, Fukuoka, Japan
| | - Takanori Honda
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Department of Epidemiology and Public Health, Fukuoka, Japan
| | - Keiko Kan-O
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Respiratory medicine, Fukuoka, Japan
| | - Mao Shibata
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Department of Epidemiology and Public Health, Fukuoka, Japan.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, Fukuoka, Fukuoka, Japan
| | - Jun Hata
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Department of Epidemiology and Public Health, Fukuoka, Fukuoka, Japan.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, Fukuoka, Fukuoka, Japan.,Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, Fukuoka, Japan
| | - Hiromasa Inoue
- Kagoshima University Graduate School of Medicine and Dental Sciences, 208512, Department of Pulmonary Medicine, Kagoshima, Kagoshima, Japan
| | - Takanari Kitazono
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, Fukuoka, Japan.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, Fukuoka, Japan
| | - Koichiro Matsumoto
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Respiratory medicine, Fukuoka, Japan
| | - Toshiharu Ninomiya
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Department of Epidemiology and Public Health, Fukuoka, Japan.,Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, Fukuoka, Japan
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11
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Ogawa T, Kan-O K, Shiota A, Fujita A, Ishii Y, Fukuyama S, Matsumoto K. Inhibition of PI3Kδ Differentially Regulates Poly I:C- and Human Metapneumovirus-Induced PD-L1 and PD-L2 Expression in Human Bronchial Epithelial Cells. Front Immunol 2021; 12:767666. [PMID: 34899719 PMCID: PMC8656419 DOI: 10.3389/fimmu.2021.767666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/10/2021] [Indexed: 11/24/2022] Open
Abstract
Bronchial epithelial cells are front sentinels eliciting innate and adaptive immunity to respiratory viral pathogens. Recognition of viral double-stranded RNA induces antiviral interferon (IFN) responses in bronchial epithelial cells. Co-inhibitory molecules programmed cell death 1 ligand 1 (PD-L1) and ligand 2 (PD-L2) were also induced on bronchial epithelial cells, which bind programmed cell death 1 on T cell and inhibit the function of virus-specific cytotoxic T lymphocyte. A previous study showed that antiviral type I IFN increased PD-L1 and PD-L2 expression in cultured melanoma cells. However, it remains unknown whether antiviral IFNs affect PD-L1 and PD-L2 expression in bronchial epithelial cells. In addition, we previously reported that inhibition of PI3Kδ signaling enhanced antiviral IFN responses in human primary bronchial epithelial cells (PBECs). Here we assessed the effect of exogenous IFNs or a selective PI3Kδ inhibitor IC87114 on PD-L1 and PD-L2 in PBECs stimulated with a synthetic double-stranded RNA poly I:C or human metapneumovirus. Treatment with IFNβ or IFNλ increased PD-L1 and PD-L2, and IFNβ or IFNλ treatment plus poly I:C further increased both expressions. Treatment with IC87114 or transfection with siRNA targeting PI3K p110δ enhanced poly I:C–induced gene and protein expression of PD-L2, whereas IC87114 suppressed poly I:C–induced PD-L1. IC87114 enhanced poly I:C–induced gene expression of IFNβ, IFNλ, and IFN-regulated genes via increased TBK1 and IRF3 phosphorylation. Transfection with siIRF3 counteracted the enhancement of poly I:C–induced PD-L2 by IC87114, whereas IC87114 suppressed poly I:C–induced PD-L1 regardless of transfection with siNC or siIRF3. Similar effects of IC87114 on PD-L1 and PD-L2 expression were observed in human metapneumovirus–infected PBECs. We showed for the first time that type I and type III IFNs induced the expression of PD-L1 and PD-L2 in PBECs. Our findings suggest that during viral infections, inhibition of PI3Kδ differentially regulates PD-L1 and PD-L2 expression in bronchial epithelial cells.
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Affiliation(s)
- Tomohiro Ogawa
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Endoscopic Diagnostics and Therapeutics, Kyushu University Hospital, Fukuoka, Japan
| | - Ayaka Shiota
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Akitaka Fujita
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yumiko Ishii
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoru Fukuyama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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12
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Kan-O K. P5‐121: Inhaled beclomethasone in the treatment of early COVID‐19: A placebo‐controlled, randomized trial. Respirology 2021. [PMID: 33289211 PMCID: PMC9011460 DOI: 10.1111/resp.14150_328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Endoscopic Diagnostics and Therapeutics, Kyushu University Hospital, Fukuoka, Japan
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13
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Kan-O K, Washio Y, Fujimoto T, Shiroyama N, Nakano T, Wakamatsu K, Takata S, Yoshida M, Fujita M, Matsumoto K. Differences in the spectrum of respiratory viruses and detection of human rhinovirus C in exacerbations of adult asthma and chronic obstructive pulmonary disease. Respir Investig 2021; 60:129-136. [PMID: 34580039 DOI: 10.1016/j.resinv.2021.08.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/08/2021] [Accepted: 08/27/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Viral respiratory infections are a common cause of acute exacerbations of chronic obstructive pulmonary disease (AECOPD) and asthma. We conducted a multicenter prospective study to determine the differences in the spectrum of viruses between adults with asthma exacerbations and AECOPD and assessed the prevalence and impact of human rhinovirus (HRV)-C in adults, which is more pathogenic in children with asthma than other HRV species. METHODS Nasopharyngeal and serum samples and clinical information were collected from 64 outpatients with adult asthma exacerbations and 44 outpatients with AECOPD between April 2018 and March 2020. Viral pathogens and HRV strains were identified from nasal samples by multiplex PCR and VP4/VP2 nested PCR. RESULTS Viral pathogens were identified in 31 patients with asthma exacerbations (48.4%) and 17 patients with AECOPD (38.6%). The most commonly detected viruses were HRV/enterovirus followed by human metapneumovirus (hMPV) in patients with asthma exacerbations, and hMPV followed by parainfluenza virus in patients with AECOPD. HRV-C was the HRV species most commonly associated with both asthma exacerbations and AECOPD. Clinical characteristics, baseline lung function, serum inflammatory chemokines, hospitalization, and systemic steroid use did not differ between HRV-C-positive patients and those positive for other HRV species. CONCLUSIONS Exacerbation-associated spectrum of viruses differed between adults with asthma exacerbations and AECOPD. HRV-C was the HRV species most often observed in adult asthma exacerbations and AECOPD, although it did not worsen patients' clinical outcomes relative to those of patients with other HRVs. Underlying disease-specific factors may be responsible for susceptibility to respiratory viruses. TRIAL REGISTRATION UMIN-CTR UMIN000031934.
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Affiliation(s)
- Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan; Department of Endoscopic Diagnostics and Therapeutics, Kyushu University Hospital, Fukuoka, 812-8582, Japan.
| | - Yasuyoshi Washio
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Tsuguto Fujimoto
- Center for Emergency Preparedness and Response, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Natsuko Shiroyama
- Department of Respiratory Medicine, Fukuoka University School of Medicine, Fukuoka, 814-0180, Japan
| | - Takako Nakano
- Department of Respiratory Medicine, National Hospital Organization Fukuokahigashi Medical Center, Koga, 811-3195, Japan
| | - Kentaro Wakamatsu
- Department of Respiratory Medicine, National Hospital Organization Omuta National Hospital, Omuta, 837-0911, Japan
| | - Shohei Takata
- Department of Respiratory Medicine, National Hospital Organization Fukuokahigashi Medical Center, Koga, 811-3195, Japan
| | - Makoto Yoshida
- Division of Respiratory Medicine, National Hospital Organization Fukuoka National Hospital, Fukuoka, 811-1394, Japan
| | - Masaki Fujita
- Department of Respiratory Medicine, Fukuoka University School of Medicine, Fukuoka, 814-0180, Japan
| | - Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
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14
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Kan-O K. Letter from Japan. Respirology 2020; 26:206-207. [PMID: 33289211 DOI: 10.1111/resp.13986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 11/23/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Endoscopic Diagnostics and Therapeutics, Kyushu University Hospital, Fukuoka, Japan
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15
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Fujita A, Kan-O K, Tonai K, Yamamoto N, Ogawa T, Fukuyama S, Nakanishi Y, Matsumoto K. Inhibition of PI3Kδ Enhances Poly I:C-Induced Antiviral Responses and Inhibits Replication of Human Metapneumovirus in Murine Lungs and Human Bronchial Epithelial Cells. Front Immunol 2020; 11:432. [PMID: 32218789 PMCID: PMC7079687 DOI: 10.3389/fimmu.2020.00432] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/25/2020] [Indexed: 12/20/2022] Open
Abstract
Viral infections of the airway can exacerbate respiratory diseases, such as asthma or chronic obstructive pulmonary disease (COPD), and accelerate disease progression. Phosphoinositide 3-kinase (PI3K)δ, a class 1A PI3K, has been studied as a potential target for achieving anti-oncogenic and anti-inflammatory effects. However, the role of PI3Kδ in antiviral responses is poorly understood. Using a synthetic double-stranded RNA poly I:C and a selective PI3Kδ inhibitor IC87114, we investigated the role of PI3Kδ signaling in poly I:C-induced expression of the T lymphocyte-inhibitory molecule programmed death 1 ligand 1 (PD-L1), inflammatory responses and antiviral interferon (IFN) responses. C57BL/6N mice were treated with IC87114 or vehicle by intratracheal (i.t.) instillation followed by i.t. administration of poly I:C. Poly I:C increased PD-L1 expression on epithelial cells, lymphocytes, macrophages, and neutrophils in the lungs and IC87114 suppressed poly I:C-induced PD-L1 expression on epithelial cells and neutrophils possibly via inhibition of the Akt/mTOR signaling pathway. IC87114 also attenuated poly I:C-induced increases in numbers of total cells, macrophages, neutrophils and lymphocytes, as well as levels of KC, IL-6 and MIP-1β in bronchoalveolar lavage fluid. Gene expression of IFNβ, IFNλ2 and IFN-stimulated genes (ISGs) were upregulated in response to poly I:C and a further increase in gene expression was observed following IC87114 treatment. In addition, IC87114 enhanced poly I:C-induced phosphorylation of IRF3. We assessed the effects of IC87114 on human primary bronchial epithelial cells (PBECs). IC87114 decreased poly I:C-induced PD-L1 expression on PBECs and secretion of IL-6 and IL-8 into culture supernatants. IC87114 further enhanced poly I:C- induced increases in the concentrations of IFNβ and IFNλ1/3 in culture supernatants as well as upregulated gene expression of ISGs in PBECs. Similar results were obtained in PBECs transfected with siRNA targeting the PIK3CD gene encoding PI3K p110δ, and stimulated with poly I:C. In human metapneumovirus (hMPV) infection of PBECs, IC87114 suppressed hMPV-induced PD-L1 expression and reduced viral replication without changing the production levels of IFNβ and IFNλ1/3 in culture supernatants. These data suggest that IC87114 may promote virus elimination and clearance through PD-L1 downregulation and enhanced antiviral IFN responses, preventing prolonged lung inflammation, which exacerbates asthma and COPD.
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Affiliation(s)
- Akitaka Fujita
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Endoscopic Diagnostics and Therapeutics, Kyushu University Hospital, Fukuoka, Japan
| | - Ken Tonai
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Division of Intensive Care, Department of Anesthesiology and Intensive Care Medicine, Jichi Medical University School of Medicine, Tochigi, Japan
| | - Norio Yamamoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomohiro Ogawa
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoru Fukuyama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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16
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Tatsuta M, Kan-O K, Ishii Y, Yamamoto N, Ogawa T, Fukuyama S, Ogawa A, Fujita A, Nakanishi Y, Matsumoto K. Effects of cigarette smoke on barrier function and tight junction proteins in the bronchial epithelium: protective role of cathelicidin LL-37. Respir Res 2019; 20:251. [PMID: 31706310 PMCID: PMC6842552 DOI: 10.1186/s12931-019-1226-4] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 10/31/2019] [Indexed: 11/10/2022] Open
Abstract
Background Airway epithelial barrier function is maintained by the formation of tight junctions (TJs) and adherens junctions (AJs). Inhalation of cigarette smoke causes airway epithelial barrier dysfunction and may contribute to the pathogenesis of chronic lung diseases such as asthma and chronic obstructive pulmonary disease (COPD). We assessed the effects of cigarette smoke on barrier function and expression of multiple TJ and AJ proteins in the bronchial epithelium. We also examined whether treatment with glucocorticosteroids (GCSs), long-acting β2-agonists (LABAs), and human cathelicidin LL-37 can protect against cigarette smoke extract (CSE)-induced barrier dysfunction. Methods Calu-3 cells cultured at the air-liquid interface were pretreated with or without GCSs, LABAs, GCSs plus LABAs, or LL-37, and subsequently exposed to CSE. Barrier function was assessed by transepithelial electronic resistance (TEER) measurements. Gene and protein expression levels of TJ and AJ proteins were analyzed by quantitative PCR and western blotting, respectively. Immunofluorescence staining of TJ and AJ proteins was performed. Results CSE decreased TEER and increased permeability in a concentration-dependent manner. CSE suppressed gene expression of claudin-1, claudin-3, claudin-4, claudin-7, claudin-15, occludin, E-cadherin, junctional adhesion molecule-A (JAM-A) and zonula occludens-1 (ZO-1) within 12 h post-CSE exposure, while suppressed protein expression levels of occludin at 12 h. CSE-treated cells exhibited discontinuous or attenuated immunostaining for claudin-1, claudin-3, claudin-4, occludin, ZO-1, and E-cadherin compared with untreated cells. GCS treatment partially restored CSE-induced TEER reduction, while LABA treatment had no effect. GCS and LABA combination treatment had no additive effect on CSE-induced TEER reduction and gene suppression of TJ and AJ proteins. Human cathelicidin LL-37 counteracted CSE-induced TEER reduction and prevented disruption of occludin and ZO-1. LL-37 also attenuated CSE-induced decreases in gene and protein expression levels of occludin. Conclusions CSE caused airway epithelial barrier dysfunction and simultaneously downregulated multiple TJ and AJ proteins. GCS and LABA combination treatment had no additive effect on CSE-induced TEER reduction. LL-37 counteracted CSE-induced TEER reduction and prevented disruption of occludin and ZO-1. Use of LL-37 to counteract airway epithelial barrier dysfunction may have significant benefits for respiratory diseases such as asthma and COPD.
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Affiliation(s)
- Miyoko Tatsuta
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.,Department of Respiratory Medicine, National Hospital Organization Omuta National Hospital, Fukuoka, 837-0911, Japan
| | - Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. .,Department of Endoscopic Diagnostics and Therapeutics, Kyushu University Hospital, Fukuoka, 812-8582, Japan.
| | - Yumiko Ishii
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Norio Yamamoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Tomohiro Ogawa
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Satoru Fukuyama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Aimi Ogawa
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Akitaka Fujita
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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17
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Tamura K, Matsumoto K, Fukuyama S, Kan-O K, Ishii Y, Tonai K, Tatsuta M, Enokizu A, Inoue H, Nakanishi Y. Frequency-dependent airway hyperresponsiveness in a mouse model of emphysema and allergic inflammation. Physiol Rep 2019; 6. [PMID: 29368450 PMCID: PMC5789724 DOI: 10.14814/phy2.13568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 12/08/2017] [Accepted: 12/12/2017] [Indexed: 11/24/2022] Open
Abstract
Asthma and chronic obstructive pulmonary disease (COPD), chronic airway inflammatory diseases characterized by airflow limitation, have different etiologies and pathophysiologies. Asthma–COPD Overlap (ACO) has recently been used for patients with mixed asthma and COPD. The pathophysiological mechanisms of ACO have not been clearly understood due to the lack of an appropriate murine model. To investigate its pathophysiology, we examined a murine model by allergen challenge in surfactant protein‐D (SP‐D)‐deficient mice that spontaneously developed pulmonary emphysema. SP‐D‐deficient mice were sensitized and challenged by ovalbumin (OVA). Lungs and bronchoalveolar lavage fluid (BALF) were collected for analysis, and static lung compliance and airway hyperresponsiveness (AHR) were measured 48 h after the last OVA challenge. In SP‐D‐deficient, naïve, or OVA‐challenged mice, the mean linear intercept and static lung compliance were increased compared with wild‐type (WT) mice. There was no significant difference in goblet cell hyperplasia and the gene expression of Mucin 5AC (MUC5AC) between SP‐D‐deficient and WT OVA‐challenged mice. In SP‐D‐deficient OVA‐challenged mice, airway hyperresponsiveness was significantly enhanced despite the lower eosinophil count and the concentration of interleukin (IL)‐5 and IL‐13 in BALF compared with WT OVA‐challenged mice at 120 ventilations per minute. When mice were ventilated at a lower ventilation frequency of 100 ventilations per minute, elevated airway hyperresponsiveness in SP‐D‐deficient OVA‐challenged mice was diminished. This model of emphysematous change with allergic airway inflammation raises the possibility that frequency‐dependent airway hyperresponsiveness may be involved in the pathophysiology of ACO.
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Affiliation(s)
- Kentaro Tamura
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoru Fukuyama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yumiko Ishii
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ken Tonai
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Miyoko Tatsuta
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Aimi Enokizu
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiromasa Inoue
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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18
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Benton MJ, Lim TK, Ko FWS, Kan-O K, Mak JCW. Year in review 2017: Chronic obstructive pulmonary disease and asthma. Respirology 2018; 23:538-545. [PMID: 29502339 DOI: 10.1111/resp.13285] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 02/13/2018] [Accepted: 02/14/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Melissa J Benton
- Helen and Arthur E. Johnson Beth-El College of Nursing and Health Sciences, University of Colorado, Colorado Springs, CO, USA
| | - Tow Keang Lim
- Department of Medicine, National University Hospital, Singapore
| | - Fanny W S Ko
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong
| | - Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Judith C W Mak
- Department of Medicine, The University of Hong Kong, Hong Kong.,Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong
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19
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Seki N, Kan-O K, Matsumoto K, Fukuyama S, Hamano S, Tonai K, Ota K, Inoue H, Nakanishi Y. Interleukin-22 attenuates double-stranded RNA-induced upregulation of PD-L1 in airway epithelial cells via a STAT3-dependent mechanism. Biochem Biophys Res Commun 2017; 494:242-248. [PMID: 29032197 DOI: 10.1016/j.bbrc.2017.10.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 10/10/2017] [Indexed: 01/13/2023]
Abstract
Double-stranded RNA derived from viruses induces host immune responses. PD-L1, also known as B7-H1, is an immune-checkpoint molecule associated with the escape of viruses from host immune systems, which plays a role in the persistence of viral infection, resulting in exacerbations of underlying diseases such as asthma and chronic obstructive pulmonary disease. Interleukin (IL)-22 is produced from various immune cells and has protective properties on mucosal tissue. The binding of IL-22 to IL-22 receptor induces STAT3 activation. We investigated the effect of IL-22 on the expression in airway epithelial cells in vitro and in mouse lungs in vivo after the stimulation with an analog of viral double-stranded RNA, polyinosinic-polycytidylic acid (poly I:C). Stimulation with poly I:C upregulated PD-L1 expression on BEAS-2B cells. This upregulation of PD-L1 was attenuated by IL-22 administration. STAT3 phosphorylation was induced by IL-22 and poly I:C. Treatment of cells with STAT3 siRNA abolished the effect of IL-22 on the poly I:C-induced upregulation of PD-L1. This upregulation of PD-L1 was also attenuated by IL-11, a cytokine inducing STAT3 phosphorylation, in BEAS-2B cells. In mouse lung cells in vivo, IL-22 suppressed poly I:C-induced upregulation of PD-L1. These results suggest that IL-22 attenuates virus-induced upregulation of PD-L1 in airway epithelial cells via a STAT3-dependent mechanism.
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Affiliation(s)
- Nanae Seki
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Satoru Fukuyama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Saaka Hamano
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Ken Tonai
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Keiichi Ota
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
| | - Hiromasa Inoue
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-0075, Japan.
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
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Kan-O K. Letter from Japan. Respirology 2017; 23:419-420. [PMID: 29215209 DOI: 10.1111/resp.13229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 11/16/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Kan-O K, Ramirez R, MacDonald MI, Rolph M, Rudd PA, Spann KM, Mahalingam S, Bardin PG, Thomas BJ. Human Metapneumovirus Infection in Chronic Obstructive Pulmonary Disease: Impact of Glucocorticosteroids and Interferon. J Infect Dis 2017; 215:1536-1545. [PMID: 28379462 DOI: 10.1093/infdis/jix167] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 03/29/2017] [Indexed: 12/12/2022] Open
Abstract
Background Human metapneumovirus (hMPV) infection is implicated in exacerbations of asthma and chronic obstructive pulmonary disease (COPD). Research into the pathogenesis of infection is restricted to animal models, and information about hMPV replication and inflammatory and immune responses in human disease is limited. Methods Human primary bronchial epithelial cells (PBECs) from healthy and asthmatic subjects and those with COPD were infected with hMPV, with or without glucocorticosteroid (GCS) exposure. Viral replication, inflammatory and immune responses, and apoptosis were analyzed. We also determined whether adjuvant interferon (IFN) can blunt hMPV infection in vitro and in a murine model. Results hMPV infected human PBECs and viral replication was enhanced in cells from patients with COPD. The virus induced gene expression of IFN-stimulated gene 56 (ISG56) and IFN-β, as well as IFN-γ-inducible protein 10 (IP-10) and regulated on activation, normal T cell expressed and secreted (RANTES), and more so in cells from patients with COPD. GCS exposure enhanced hMPV replication despite increased IFN expression. Augmented virus replication associated with GCS was mediated by reduced apoptosis via induction of antiapoptotic genes. Adjuvant IFN treatment suppressed hMPV replication in PBECs and reduced hMPV viral titers and inflammation in vivo. Conclusions hMPV infects human PBECs, eliciting innate and inflammatory responses. Replication is enhanced by GCS and adjuvant IFN is an effective treatment, restricting virus replication and proinflammatory consequences of hMPV infections.
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Affiliation(s)
- Keiko Kan-O
- Monash Lung & Sleep, Monash Medical Centre.,Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, and.,Department of Molecular and Translational Sciences, School of Clinical Sciences, Monash University, Melbourne.,Research Institute for Disease of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | | | - Michael Rolph
- Institute for Glycomics, Griffith University, Southport, and
| | - Penny A Rudd
- Institute for Glycomics, Griffith University, Southport, and
| | - Kirsten M Spann
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | | | - Philip G Bardin
- Monash Lung & Sleep, Monash Medical Centre.,Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, and.,Department of Molecular and Translational Sciences, School of Clinical Sciences, Monash University, Melbourne
| | - Belinda J Thomas
- Monash Lung & Sleep, Monash Medical Centre.,Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, and.,Department of Molecular and Translational Sciences, School of Clinical Sciences, Monash University, Melbourne
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Thomas BJ, Kan-O K, Loveland KL, Elias JA, Bardin PG. In the Shadow of Fibrosis: Innate Immune Suppression Mediated by Transforming Growth Factor-β. Am J Respir Cell Mol Biol 2017; 55:759-766. [PMID: 27603223 DOI: 10.1165/rcmb.2016-0248ps] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Transforming growth factor-β (TGFB) regulates cell proliferation, differentiation, apoptosis, and matrix homeostasis and is intimately involved in fibrosis. TGFB expression is increased in fibrotic lung diseases, such as idiopathic pulmonary fibrosis, and in chronic inflammatory conditions, such as chronic obstructive pulmonary disease and asthma. In addition to exhibiting profibrotic activities, the protein exhibits profound immune-suppressive actions involving both innate and adaptive responses, but often this aspect of TGFB biology is overlooked. Recent investigations have demonstrated that TGFB causes wide-ranging immune suppression, including blunting of pivotal early innate IFN responses. These activities permit severe virus infections, often followed by secondary bacterial infections, which may last longer, with augmented inflammation, scarring, fibrosis, and loss of lung function. Strategies to oppose TGFB actions or to enhance IFN responses may help ameliorate the detrimental consequences of infection in patients with diseases characterized by TGFB overexpression, inflammation, and fibrosis.
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Affiliation(s)
- Belinda J Thomas
- 1 Monash Lung and Sleep, Monash Medical Centre, Melbourne, Victoria, Australia.,2 Centre for Innate Immunity and Infectious Diseases and.,3 Department of Molecular and Translational Sciences, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia; and
| | - Keiko Kan-O
- 1 Monash Lung and Sleep, Monash Medical Centre, Melbourne, Victoria, Australia.,2 Centre for Innate Immunity and Infectious Diseases and.,3 Department of Molecular and Translational Sciences, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia; and
| | - Kate L Loveland
- 4 Centre of Reproductive Health, Hudson Institute of Medical Research, Melbourne, Victoria, Australia.,3 Department of Molecular and Translational Sciences, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia; and
| | - Jack A Elias
- 5 Division of Biology and Medicine, Brown University, Providence, Rhode Island
| | - Philip G Bardin
- 1 Monash Lung and Sleep, Monash Medical Centre, Melbourne, Victoria, Australia.,2 Centre for Innate Immunity and Infectious Diseases and.,3 Department of Molecular and Translational Sciences, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia; and
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Hamano S, Matsumoto K, Tonai K, Fukuyama S, Kan-O K, Seki N, Inoue H, Nakanishi Y. Effects of corticosteroid plus long-acting beta 2-agonist on the expression of PD-L1 in double-stranded RNA-induced lung inflammation in mice. J Inflamm (Lond) 2017; 14:2. [PMID: 28115915 PMCID: PMC5240396 DOI: 10.1186/s12950-017-0149-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 01/03/2017] [Indexed: 01/31/2023]
Abstract
Background Airway viral infections cause the exacerbations of asthma and chronic obstructive pulmonary disease. PD-L1, also known as B7-H1, is an immune-checkpoint molecule that plays a role in an escape mechanism of viruses from the host immune systems. This escape may be associated with the persistence of viral infection and the exacerbation of the underlying diseases. In a study in vitro, we have shown that corticosteroids plus long-acting beta2-agonists (LABAs) attenuate the upregulation of PD-L1 on airway epithelial cells stimulated with an analog of viral double-stranded RNA, polyinosinic-polycytidylic acid (poly I:C). To address its biological relevance in vivo, we investigated the effect of corticosteroid plus LABA on the expression of PD-L1 in double-stranded RNA-induced lung inflammation in mice. Methods Mice were intratracheally administered with poly I:C. The expression of PD-L1 on the lung cells was assessed by flow cytometry and inflammation was assessed for bronchoalveolar lavage fluid (BALF). Independent as well as combination effects of ciclesonide and indacaterol were examined. Results Administration of low dose poly I:C upregulated the expression of PD-L1, induced neutrophilia and increased keratinocyte-derived chemokine (KC), macrophage inflammatory protein-1β (MIP-1β), and IL-6 in BALF. The upregulation of PD-L1, neutrophilic inflammation and increase of KC were suppressed by ciclesonide plus indacaterol, but not by either when administered independently. Although the upregulation of PD-L1 by high dose poly I:C was suppressed by ciclesonide plus indacaterol, neutrophilia and increased KC, MIP-1β, and IL-6 in BALF were not attenuated. Conclusions Ciclesonide plus indacaterol attenuate double-stranded RNA-induced upregulation of PD-L1 in the lungs.
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Affiliation(s)
- Saaka Hamano
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, 812-8582 Japan
| | - Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, 812-8582 Japan
| | - Ken Tonai
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, 812-8582 Japan
| | - Satoru Fukuyama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, 812-8582 Japan
| | - Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, 812-8582 Japan
| | - Nanae Seki
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, 812-8582 Japan
| | - Hiromasa Inoue
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, 812-8582 Japan
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Asai-Tajiri Y, Matsumoto K, Fukuyama S, Kan-O K, Nakano T, Tonai K, Ohno T, Azuma M, Inoue H, Nakanishi Y. Small interfering RNA against CD86 during allergen challenge blocks experimental allergic asthma. Respir Res 2014; 15:132. [PMID: 25344652 PMCID: PMC4216659 DOI: 10.1186/s12931-014-0132-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 10/16/2014] [Indexed: 12/20/2022] Open
Abstract
Background CD86-CD28 interaction has been suggested as the principal costimulatory pathway for the activation and differentiation of naïve T cells in allergic inflammation. However, it remains uncertain whether this pathway also has an essential role in the effector phase. We sought to determine the contribution of CD86 on dendritic cells in the reactivation of allergen-specific Th2 cells. Methods We investigated the effects of the downregulation of CD86 by short interfering RNAs (siRNAs) on Th2 cytokine production in the effector phase in vitro and on asthma phenotypes in ovalbumin (OVA)-sensitized and -challenged mice. Results Treatment of bone marrow-derived dendritic cells (BMDCs) with CD86 siRNA attenuated LPS-induced upregulation of CD86. CD86 siRNA treatment impaired BMDCs’ ability to activate OVA-specific Th2 cells. Intratracheal administration of CD86 siRNA during OVA challenge downregulated CD86 expression in the airway mucosa. CD86 siRNA treatment ameliorated OVA-induced airway eosinophilia, airway hyperresponsiveness, and the elevations of OVA-specific IgE in the sera and IL-5, IL-13, and CCL17 in the bronchoalveolar lavage fluid, but not the goblet cell hyperplasia. Conclusion These results suggest that local administration of CD86 siRNA during the effector phase ameliorates lines of asthma phenotypes. Targeting airway dendritic cells with siRNA suppresses airway inflammation and hyperresponsiveness in an experimental model of allergic asthma.
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Affiliation(s)
- Yukari Asai-Tajiri
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Satoru Fukuyama
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Keiko Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Takako Nakano
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Ken Tonai
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Tatsukuni Ohno
- Department of Molecular Immunology, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Miyuki Azuma
- Department of Molecular Immunology, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Hiromasa Inoue
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. .,Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
| | - Yoichi Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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Kan-O K, Matsumoto K, Inoue H, Fukuyama S, Asai Y, Watanabe W, Kurokawa M, Araya J, Kuwano K, Nakanishi Y. Corticosteroids plus long-acting β2-agonists prevent double-stranded RNA-induced upregulation of B7-H1 on airway epithelium. Int Arch Allergy Immunol 2012; 160:27-36. [PMID: 22948082 DOI: 10.1159/000338430] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 03/23/2012] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Airway viral infections provoke exacerbations of asthma and chronic obstructive pulmonary disease. B7-H1 is a costimulatory molecule that is implicated in an escape mechanism of viruses from host immune systems. This escape may be associated with the persistence of viral infection and lead to exacerbation of underlying diseases. We have shown that an analog of viral double-stranded RNA, polyinosinic-polycytidylic acid (poly IC), upregulated the expression of B7-H1 on airway epithelial cells, an effect which was corticosteroid-resistant. We investigated the effects of corticosteroids plus long-acting β(2)-agonists (LABAs; fluticasone/salmeterol or budesonide/formoterol) on the expression of B7-H1. METHODS BEAS-2B cells and primary airway epithelial cells were stimulated with poly IC or respiratory syncytial virus. The expression of B7-H1 was assessed by flow cytometry. RESULTS Poly IC upregulated the expression of B7-H1, which was suppressed by high-concentration corticosteroids but not by LABAs. The upregulation was suppressed by very low-concentration corticosteroids when used in combination with LABAs. Their combination also suppressed the virus-induced upregulation of B7-H1. Poly IC stimulation induced the nuclear translocation of nuclear factor ĸB (NF-ĸB). Inhibitors of NF-ĸB activation prevented the poly IC-induced upregulation of B7-H1. Low-concentration corticosteroids in combination with LABAs enhanced the de novo induction of IĸBα, the endogenous inhibitor of NF-ĸB activation. CONCLUSIONS Fluticasone/salmeterol or budesonide/formoterol attenuate the virus-associated upregulation of B7-H1 on airway epithelial cells via suppression of NF-ĸB activation.
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Affiliation(s)
- K Kan-O
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Matsumoto K, Asai Y, Fukuyama S, Kan-O K, Matsunaga Y, Noda N, Kitajima H, Tanaka K, Nakanishi Y, Inoue H. IL-6 induced by double-stranded RNA augments allergic inflammation via suppression of Foxp3+ T-cell/IL-10 axis. Am J Respir Cell Mol Biol 2011; 46:740-7. [PMID: 21799119 DOI: 10.1165/rcmb.2010-0479oc] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Activation of innate immunity against viruses in the respiratory tracts affects the development of asthma. Most respiratory viruses generate double-stranded (ds)RNA during their replication. We recently showed that a low-dose administration of polyinosinic polycytidylic acid (poly IC), a mimetic of viral dsRNA, during allergen sensitization augments airway eosinophilia and hyperresponsiveness in mice via enhanced production of IL-13 from T cells. However, a phenotype of asthma under severer load of dsRNA remains unknown. d-galactosamine (d-GalN) is known as a strong sensitizer of poly IC. Mice were treated with poly IC plus d-GalN during allergen sensitization. A sublethal dose of poly IC/d-GalN augmented airway eosinophilia and CD4(+) T-cell accumulation in the lungs but not airway hyperresponsiveness. The augmented inflammation was associated with decreased IL-10 in the bronchoalveolar lavage fluid and decreased Foxp3(+) regulatory T cells in the lungs. Serum IL-6 was prominently higher in the mice treated with poly IC/d-GalN than in that with poly IC alone or d-GalN alone. Poly IC/d-GalN did not affect IL-17-producing T cells in the lungs. Poly IC/d-GalN failed to augment airway eosinophilia after anti-IL-10 receptor monoclonal antibody treatment during allergen challenge. Finally, anti-IL-6 receptor monoclonal antibody treatment before poly IC/d-GalN completely prevented the decrease of IL-10 and Foxp3(+) regulatory T cells and the augmentation of airway inflammation. These results indicate that enhanced production of IL-6 by poly IC/d-GalN induces the augmentation of allergic inflammation via suppression of Foxp3(+) regulatory T-cell/IL-10 axis. IL-6 may be a target for preventing asthma augmentation related to severe virus infection.
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Affiliation(s)
- Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan.
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Matsumoto K, Kan-O K, Eguchi-Tsuda M, Fukuyama S, Asai Y, Matsumoto T, Moriwaki A, Matsunaga Y, Tsutsui H, Kawai T, Takeuchi O, Akira S, Yagita H, Azuma M, Nakanishi Y, Inoue H. Essential role of B7-H1 in double-stranded RNA-induced augmentation of an asthma phenotype in mice. Am J Respir Cell Mol Biol 2010; 45:31-9. [PMID: 20802088 DOI: 10.1165/rcmb.2009-0450oc] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Clinical and epidemiological studies have shown the contribution of viral infection to the development of allergic asthma. Many RNA viruses, pathogenic for the respiratory tract, generate double-stranded (ds)RNA during their replication. Typical innate immune responses triggered by dsRNA involve the endosomal and cytoplasmic pathways. The former is mediated by Toll/IL-1R domain-containing adaptor inducing IFN-β (TRIF), and the latter by IFN-β promoter stimulator 1 (IPS-1). We explored the effect of polyinocinic polycytidilic acid, a synthetic dsRNA, on the development of an asthma phenotype in mice. Administration of dsRNA during ovalbumin sensitization augmented airway eosinophilia and airway hyperresponsiveness after an antigen challenge, which was associated with enhanced induction of IL-13-producing CD8(+) T cells. The augmentation was induced in IPS-1-deficient mice but not in TRIF-deficient mice. The interactions between dendritic cells (DCs) and T cells are regulated by B7-family costimulatory molecules, including B7-H1 (also known as PD-L1), a putative ligand for programmed death-1 (PD-1). Treatment of bone marrow-derived DCs with dsRNA enhanced B7-H1 expression in a TRIF-dependent manner. Additionally, dsRNA increased B7-H1 expression on DCs in the draining lymph nodes of ovalbumin-sensitized mice. The augmentation of the asthma phenotype was prevented by the treatment of mice with anti-B7-H1 mAb but not with anti-PD-1 mAb. The augmentation was not induced in B7-H1-deficient mice. These results suggest that dsRNA-triggered activation of the innate immune system in sensitization leads to augmentation of the asthma phenotype via IL-13 mainly from CD8(+) T cells. B7-H1 plays a crucial role in the process without requiring interaction with PD-1.
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Affiliation(s)
- Koichiro Matsumoto
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
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Moriwaki A, Inoue H, Nakano T, Matsunaga Y, Matsuno Y, Matsumoto T, Fukuyama S, Kan-O K, Matsumoto K, Tsuda-Eguchi M, Nagakubo D, Yoshie O, Yoshimura A, Kubo M, Nakanishi Y. T cell treatment with small interfering RNA for suppressor of cytokine signaling 3 modulates allergic airway responses in a murine model of asthma. Am J Respir Cell Mol Biol 2010; 44:448-55. [PMID: 20508071 DOI: 10.1165/rcmb.2009-0051oc] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
CD4(+) T cells, particularly T helper (Th) 2 cells, play a pivotal role in the pathophysiology of allergic asthma. Suppressor of cytokine signaling (SOCS) proteins control the balance of CD4(+) T cell differentiation. Mice that lack SOCS3 in T cells by crossing SOCS3-floxed mice with Lck-Cre-transgenic mice have reduced allergen-induced eosinophilia in the airways. Here, we studied the effects of SOCS3 silencing with small interfering (si) RNA in primary CD4(+) T cells on Th2 cell differentiation and on asthmatic responses in mice. Th2 cells were generated from ovalbumin (OVA)-specific T cell receptor-transgenic mice in vitro and transferred into recipient mice. Transfection of SOCS3-specific siRNA attenuated Th2 response in vitro. Adoptive transfer of SOCS3-siRNA T cells exhibited markedly suppressed airway hyperresponsiveness and eosinophilia after OVA challenge, with a concomitant decrease in OVA-specific CD4(+) T cell accumulation in the airways. To investigate the mechanism of this impaired CD4(+) T cell accumulation, we inactivated SOCS3 of T cells by crossing SOCS3-floxed (SOCS3(flox/flox)) mice with CD4-Cre transgenic mice. CD4-Cre × SOCS3(flox/flox) mice exhibited fewer IL-4-producing cells and more reduced eosinophil infiltration in bronchoalveolar lavage fluids than control mice in a model of OVA-induced asthma. Expression of CCR3 and CCR4 in CD4(+) T cells was decreased in CD4-Cre × SOCS3(flox/flox) mice. CCR4 expression was also decreased in CD4(+) T cells after transfer of SOCS3 siRNA-treated T cells. These findings suggest that the therapeutic modulation of SOCS3 expression in CD4(+) T cells might be effective in preventing the development of allergic asthma.
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Affiliation(s)
- Atsushi Moriwaki
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 812-8582, Japan
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Matsumoto T, Inoue H, Sato Y, Kita Y, Nakano T, Noda N, Eguchi-Tsuda M, Moriwaki A, Kan-O K, Matsumoto K, Shimizu T, Nagasawa H, Sakuda S, Nakanishi Y. Demethylallosamidin, a chitinase inhibitor, suppresses airway inflammation and hyperresponsiveness. Biochem Biophys Res Commun 2009; 390:103-8. [PMID: 19782048 DOI: 10.1016/j.bbrc.2009.09.075] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2009] [Accepted: 09/19/2009] [Indexed: 01/13/2023]
Abstract
Acidic mammalian chitinase is upregulated in response to allergen exposure in the lung. We investigated the effects of chitinase inhibitors, allosamidin (Allo) and demethylallosamidin (Dma), on asthmatic responses. Mice were subjected to IL-13 instillation into the airways or to ovalbumin sensitization plus exposure with or without treatment of Allo or Dma. Airway hyperresponsiveness (AHR) and inflammation were evaluated. Allo and Dma attenuated airway eosinophilia and the upregulation of eotaxin after IL-13 instillation, while Dma, but not Allo, suppressed AHR in IL-13-induced asthma. Allo or Dma suppressed the elevated chitinase activity in BAL fluids after IL-13 to similar levels. The bronchoprotective PGE(2) levels in BAL fluids were elevated after IL-13 instillation. Allo, but not Dma, suppressed the overproduction of PGE(2) and the expression of COX-2 and PGE synthase-1 induced by IL-13. In ovalbumin-induced asthma, Dma suppressed AHR more strongly than Allo. These findings suggest that Dma attenuates asthmatic responses induced by IL-13 without affecting PGE(2) synthesis. Dma may have potential as therapeutic agents for asthma.
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Affiliation(s)
- Takafumi Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Matsumoto K, Inoue H, Fukuyama S, Kan-O K, Eguchi-Tsuda M, Matsumoto T, Moriwaki A, Nakano T, Nakanishi Y. Frequency of Foxp3+CD4CD25+ T cells is associated with the phenotypes of allergic asthma. Respirology 2009; 14:187-94. [PMID: 19192224 DOI: 10.1111/j.1440-1843.2008.01472.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVE A forkhead/winged-helix family transcriptional repressor, Foxp3, is highly expressed on CD4(+)CD25(+) T regulatory cells. The role of Foxp3(+)CD4(+)CD25(+) T regulatory cells in asthma remains to be elucidated. Using mouse models and peripheral blood mononuclear cells (PBMC) from subjects with allergic asthma, we aimed to explore whether Foxp3(+)CD4(+)CD25(+) T regulatory cells associate with asthma phenotypes. METHODS Foxp3(+)CD4(+)CD25(+) T cells were detected by FACS and the correlation between the frequency of Foxp3(+)CD4(+)CD25(+) T cells and asthma phenotypes was assessed. RESULTS The frequency of Foxp3(+)CD4(+)CD25(+) T cells among total CD4(+)CD25(+) T cells in the lungs showed an inverse correlation with eosinophilic inflammation in BALB/c, A/J and C57BL/6 strains. In addition, the frequency of Foxp3(+)CD4(+)CD25(+) T cells was inversely correlated with BHR and allergen-specific IgE levels in the serum of A/J mice. In BALB/c mice, the frequency of Foxp3(+)CD4(+)CD25(+) T cells correlated with the level of IL-10 in BAL fluid. The inverse correlation between the frequency of Foxp3(+)CD4(+)CD25(+) T cells and eosinophilic inflammation disappeared when mice were treated with anti-IL-10 receptor mAb during allergen challenge. Interestingly, intracellular cytokine staining of lung cells revealed that IL-10 was predominantly produced by Foxp3(-)CD4(+)CD25(+) T cells. The frequency of Foxp3(+)CD4(+)CD25(+) T cells among total CD4(+)CD25(+) T cells in PBMC of asthmatics was significantly lower than that of healthy subjects, although there was no significant correlation between the frequency of Foxp3(+)CD4(+)CD25(+) T cells and asthma severity. CONCLUSIONS These results suggest a role for lung Foxp3(+)CD4(+)CD25(+) T cells in the regulation of asthma phenotypes, presumably through an IL-10-mediated mechanism.
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Affiliation(s)
- Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
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