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Mach N. The forecasting power of the mucin-microbiome interplay in livestock respiratory diseases. Vet Q 2024; 44:1-18. [PMID: 38606662 PMCID: PMC11018052 DOI: 10.1080/01652176.2024.2340003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 03/31/2024] [Indexed: 04/13/2024] Open
Abstract
Complex respiratory diseases are a significant challenge for the livestock industry worldwide. These diseases considerably impact animal health and welfare and cause severe economic losses. One of the first lines of pathogen defense combines the respiratory tract mucus, a highly viscous material primarily composed of mucins, and a thriving multi-kingdom microbial ecosystem. The microbiome-mucin interplay protects from unwanted substances and organisms, but its dysfunction may enable pathogenic infections and the onset of respiratory disease. Emerging evidence also shows that noncoding regulatory RNAs might modulate the structure and function of the microbiome-mucin relationship. This opinion paper unearths the current understanding of the triangular relationship between mucins, the microbiome, and noncoding RNAs in the context of respiratory infections in animals of veterinary interest. There is a need to look at these molecular underpinnings that dictate distinct health and disease outcomes to implement effective prevention, surveillance, and timely intervention strategies tailored to the different epidemiological contexts.
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Affiliation(s)
- Núria Mach
- IHAP, Université de Toulouse, INRAE, ENVT, Toulouse, France
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2
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Jeong D, Chung YW, Ji H, Kim J, Seo JH, Han S, Moon S, Rha MS, Cho HJ, Kim CH, Ryu JH, Kim HH, Yoon JH. Let-7a-5p Inhibits IL-4-induced MUC5AC Expression and Mucus Hypersecretion and Is Transported in Nasal Lavage Extracellular Vesicles. Am J Respir Cell Mol Biol 2024; 71:375-379. [PMID: 39212484 DOI: 10.1165/rcmb.2023-0268le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024] Open
Affiliation(s)
- Daeun Jeong
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Youn Wook Chung
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Haein Ji
- Sungkyunkwan University Seoul, Republic of Korea
- Samsung Medical Center Seoul, Republic of Korea
| | - Jinsun Kim
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Ju Hee Seo
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Seunghan Han
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Sungmin Moon
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Min-Seok Rha
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Hyung-Ju Cho
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Chang-Hoon Kim
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Ji-Hwan Ryu
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Hyeon Ho Kim
- Sungkyunkwan University Seoul, Republic of Korea
- Samsung Medical Center Seoul, Republic of Korea
| | - Joo-Heon Yoon
- Yonsei University College of Medicine Seoul, Republic of Korea
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3
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Hufnagel M, Rademaekers A, Weisert A, Häberlein H, Franken S. Pharmacological profile of dicaffeoylquinic acids and their role in the treatment of respiratory diseases. Front Pharmacol 2024; 15:1371613. [PMID: 39239645 PMCID: PMC11374715 DOI: 10.3389/fphar.2024.1371613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 08/05/2024] [Indexed: 09/07/2024] Open
Abstract
Dicaffeoylquinic acids (DCQAs) are polyphenolic compounds found in various medicinal plants such as Echinacea species and Hedera helix, whose multi-constituent extracts are used worldwide to treat respiratory diseases. Besides triterpenes, saponins, alkamides, and other constituents, DCQAs are an important group of substances for the pharmacological activity of plant-derived extracts. Therefore, the pharmacological properties of DCQAs have been studied over the last decades, suggesting antioxidative, anti-inflammatory, antimicrobial, hypoglycaemic, cardiovascular protective, neuroprotective, and hepatoprotective effects. However, the beneficial pharmacological profile of DCQAs has not yet been linked to their use in treating respiratory diseases such as acute or even chronic bronchitis. The aim of this review was to assess the potential of DCQAs for respiratory indications based on published in vitro and in vivo pharmacological and pre-clinical data, with particular focus on antioxidative, anti-inflammatory, and respiratory-related effects such as antitussive or antispasmodic properties. A respective literature search revealed a large number of publications on the six DCQA isoforms. Based on this search, a focus was placed on 1,3-, 3,4-, 3,5-, and 4,5-DCQA, as the publications focused mainly on these isomers. Based on the available pre-clinical data, DCQAs trigger cellular mechanisms that are important in the treatment of respiratory diseases such as decreasing NF-κB activation, reducing oxidative stress, or activating the Nrf2 pathway. Taken together, these data suggest an essential role for DCQAs within herbal medicines used for the treatment of respiratory diseases and highlights the need for the identifications of DCQAs as lead substances within such extracts.
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Affiliation(s)
| | | | - Anika Weisert
- Engelhard Arzneimittel GmbH & Co. KG, Niederdorfelden, Germany
| | - Hanns Häberlein
- Medical Faculty, Institute of Biochemistry and Molecular Biology, University of Bonn, Bonn, Germany
| | - Sebastian Franken
- Medical Faculty, Institute of Biochemistry and Molecular Biology, University of Bonn, Bonn, Germany
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4
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Sasso-Cerri E, Martinelli VD, de Oliveira SA, da Silva AAS, de Moraes JCG, Cerri PS. Submandibular Gland Pathogenesis Following SARS-CoV-2 Infection and Implications for Xerostomia. Int J Mol Sci 2024; 25:6820. [PMID: 38999930 PMCID: PMC11241347 DOI: 10.3390/ijms25136820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/10/2024] [Accepted: 06/15/2024] [Indexed: 07/14/2024] Open
Abstract
Although SARS-CoV-2 induces mucin hypersecretion in the respiratory tract, hyposalivation/xerostomia has been reported by COVID-19 patients. We evaluate the submandibular gland (SMGs) pathogenesis in SARS-CoV-2-infected K18-hACE2 mice, focusing on the impact of infection on the mucin production and structural integrity of acini, ductal system, myoepithelial cells (MECs) and telocytes. The spike protein, the nucleocapsid protein, hACE2, actin, EGF, TNF-α and IL-1β were detected by immunofluorescence, and the Egfr and Muc5b expression was evaluated. In the infected animals, significant acinar hypertrophy was observed in contrast to ductal atrophy. Nucleocapsid proteins and/or viral particles were detected in the SMG cells, mainly in the nuclear membrane-derived vesicles, confirming the nuclear role in the viral formation. The acinar cells showed intense TNF-α and IL-1β immunoexpression, and the EGF-EGFR signaling increased, together with Muc5b upregulation. This finding explains mucin hypersecretion and acinar hypertrophy, which compress the ducts. Dying MECs and actin reduction were also observed, indicating failure of contraction and acinar support, favoring acinar hypertrophy. Viral assembly was found in the dying telocytes, pointing to these intercommunicating cells as viral transmitters in SMGs. Therefore, EGF-EGFR-induced mucin hypersecretion was triggered by SARS-CoV-2 in acinar cells, likely mediated by cytokines. The damage to telocytes and MECs may have favored the acinar hypertrophy, leading to ductal obstruction, explaining xerostomia in COVID-19 patients. Thus, acinar cells, telocytes and MECs may be viral targets, which favor replication and cell-to-cell viral transmission in the SMG, corroborating the high viral load in saliva of infected individuals.
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Affiliation(s)
- Estela Sasso-Cerri
- Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Dental School–São Paulo State University (UNESP), Araraquara 14801-903, Brazil; (V.D.M.); (J.C.G.d.M.)
| | - Vitor Dallacqua Martinelli
- Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Dental School–São Paulo State University (UNESP), Araraquara 14801-903, Brazil; (V.D.M.); (J.C.G.d.M.)
| | - Salmo Azambuja de Oliveira
- Department of Morphology and Genetics, Federal University of São Paulo, São Paulo 04023-900, Brazil; (S.A.d.O.); (A.A.S.d.S.)
| | - André Acácio Souza da Silva
- Department of Morphology and Genetics, Federal University of São Paulo, São Paulo 04023-900, Brazil; (S.A.d.O.); (A.A.S.d.S.)
| | - Juliana Cerini Grassi de Moraes
- Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Dental School–São Paulo State University (UNESP), Araraquara 14801-903, Brazil; (V.D.M.); (J.C.G.d.M.)
| | - Paulo Sérgio Cerri
- Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Dental School–São Paulo State University (UNESP), Araraquara 14801-903, Brazil; (V.D.M.); (J.C.G.d.M.)
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Stanforth KJ, Zakhour MI, Chater PI, Wilcox MD, Adamson B, Robson NA, Pearson JP. The MUC2 Gene Product: Polymerisation and Post-Secretory Organisation-Current Models. Polymers (Basel) 2024; 16:1663. [PMID: 38932019 PMCID: PMC11207715 DOI: 10.3390/polym16121663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/03/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
MUC2 mucin, the primary gel-forming component of intestinal mucus, is well researched and a model of polymerisation and post-secretory organisation has been published previously. Recently, several significant developments have been made which either introduce new ideas or challenge previous theories. New ideas include an overhaul of the MUC2 C-terminal globular structure which is proposed to harbour several previously unobserved domains, and include a site for an extra intermolecular disulphide bridge dimer between the cysteine 4379 of adjacent MUC2 C-termini. MUC2 polymers are also now thought to be secreted attached to the epithelial surface of goblet cells in the small intestine and removed following secretion via a metalloprotease meprin β-mediated cleavage of the von Willebrand D2 domain of the N-terminus. It remains unclear whether MUC2 forms intermolecular dimers, trimers, or both, at the N-termini during polymerisation, with several articles supporting either trimer or dimer formation. The presence of a firm inner mucus layer in the small intestine is similarly unclear. Considering this recent research, this review proposes an update to the previous model of MUC2 polymerisation and secretion, considers conflicting theories and data, and highlights the importance of this research to the understanding of MUC2 mucus layers in health and disease.
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Affiliation(s)
- Kyle J. Stanforth
- Aelius Biotech, The Medical School, Framlington Place, Newcastle-upon-Tyne NE2 4HH, UK; (P.I.C.); (M.D.W.); (B.A.); (N.A.R.)
| | - Maria I. Zakhour
- Biosciences Institute, Newcastle University Biosciences Institute, Catherine Cookson Building, Framlington Place, Newcastle-upon-Tyne NE2 4HH, UK; (M.I.Z.); (J.P.P.)
| | - Peter I. Chater
- Aelius Biotech, The Medical School, Framlington Place, Newcastle-upon-Tyne NE2 4HH, UK; (P.I.C.); (M.D.W.); (B.A.); (N.A.R.)
| | - Matthew D. Wilcox
- Aelius Biotech, The Medical School, Framlington Place, Newcastle-upon-Tyne NE2 4HH, UK; (P.I.C.); (M.D.W.); (B.A.); (N.A.R.)
| | - Beth Adamson
- Aelius Biotech, The Medical School, Framlington Place, Newcastle-upon-Tyne NE2 4HH, UK; (P.I.C.); (M.D.W.); (B.A.); (N.A.R.)
| | - Niamh A. Robson
- Aelius Biotech, The Medical School, Framlington Place, Newcastle-upon-Tyne NE2 4HH, UK; (P.I.C.); (M.D.W.); (B.A.); (N.A.R.)
| | - Jeffrey P. Pearson
- Biosciences Institute, Newcastle University Biosciences Institute, Catherine Cookson Building, Framlington Place, Newcastle-upon-Tyne NE2 4HH, UK; (M.I.Z.); (J.P.P.)
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6
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Li X, Liu G, Wu W. Progress in Biological Research and Treatment of Pseudomyxoma Peritonei. Cancers (Basel) 2024; 16:1406. [PMID: 38611084 PMCID: PMC11010892 DOI: 10.3390/cancers16071406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/28/2024] [Accepted: 03/30/2024] [Indexed: 04/14/2024] Open
Abstract
Pseudomyxoma peritonei (PMP) is a rare disease characterized by extensive peritoneal implantation and mass secretion of mucus after primary mucinous tumors of the appendix or other organ ruptures. Cytoreductive surgery (CRS) combined with hyperthermic intraperitoneal chemotherapy (HIPEC) is currently the preferred treatment, with excellent efficacy and safety, and is associated with breakthrough progress in long-term disease control and prolonged survival. However, the high recurrence rate of PMP is the key challenge in its treatment, which limits the clinical application of multiple rounds of CRS-HIPEC and does not benefit from conventional systemic chemotherapy. Therefore, the development of alternative therapies for patients with refractory or relapsing PMP is critical. The literature related to PMP research progress and treatment was searched in the Web of Science, PubMed, and Google Scholar databases, and a literature review was conducted. The overview of the biological research, treatment status, potential therapeutic strategies, current research limitations, and future directions associated with PMP are presented, focuses on CRS-HIPEC therapy and alternative or combination therapy strategies, and emphasizes the clinical transformation prospects of potential therapeutic strategies such as mucolytic agents and targeted therapy. It provides a theoretical reference for the treatment of PMP and the main directions for future research.
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Affiliation(s)
- Xi Li
- Department of Geriatric Surgery, Xiangya Hospital, Central South University, Changsha 410008, China;
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Guodong Liu
- Department of Geriatric Surgery, Xiangya Hospital, Central South University, Changsha 410008, China;
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Wei Wu
- Department of Geriatric Surgery, Xiangya Hospital, Central South University, Changsha 410008, China;
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
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7
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Razzaq A, Disoma C, Zhou Y, Tao S, Chen Z, Liu S, Zheng R, Zhang Y, Liao Y, Chen X, Liu S, Dong Z, Xu L, Deng X, Li S, Xia Z. Targeting epidermal growth factor receptor signalling pathway: A promising therapeutic option for COVID-19. Rev Med Virol 2024; 34:e2500. [PMID: 38126937 DOI: 10.1002/rmv.2500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/20/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is continuously producing new variants, necessitating effective therapeutics. Patients are not only confronted by the immediate symptoms of infection but also by the long-term health issues linked to long COVID-19. Activation of epidermal growth factor receptor (EGFR) signalling during SARS-CoV-2 infection promotes virus propagation, mucus hyperproduction, and pulmonary fibrosis, and suppresses the host's antiviral response. Over the long term, EGFR activation in COVID-19, particularly in COVID-19-induced pulmonary fibrosis, may be linked to the development of lung cancer. In this review, we have summarised the significance of EGFR signalling in the context of SARS-CoV-2 infection. We also discussed the targeting of EGFR signalling as a promising strategy for COVID-19 treatment and highlighted erlotinib as a superior option among EGFR inhibitors. Erlotinib effectively blocks EGFR and AAK1, thereby preventing SARS-CoV-2 replication, reducing mucus hyperproduction, TNF-α expression, and enhancing the host's antiviral response. Nevertheless, to evaluate the antiviral efficacy of erlotinib, relevant clinical trials involving an appropriate patient population should be designed.
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Affiliation(s)
- Aroona Razzaq
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Cyrollah Disoma
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
- Department of Biology, College of Natural Sciences and Mathematics, Mindanao State University, Marawi City, Philippines
| | - Yuzheng Zhou
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
- Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Siyi Tao
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Zongpeng Chen
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Sixu Liu
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Rong Zheng
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Yongxing Zhang
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Yujie Liao
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Xuan Chen
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Sijie Liu
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Zijun Dong
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Liangtao Xu
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Xu Deng
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, China
| | - Shanni Li
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
| | - Zanxian Xia
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Animal Models for Human Diseases, School of Life Sciences, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, China
- Centre for Medical Genetics, School of Life Sciences, Central South University, Changsha, China
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8
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Li X, Li H, Christenson SA, Castro M, Denlinger LC, Erzurum SC, Fahy JV, Gaston BM, Israel E, Jarjour NN, Levy BD, Mauger DT, Moore WC, Zein J, Kaminski N, Wenzel SE, Woodruff PG, Bleecker ER, Meyers DA. Genetic analyses of chr11p15.5 region identify MUC5AC- MUC5B associated with asthma-related phenotypes. J Asthma 2023; 60:1824-1835. [PMID: 36946148 PMCID: PMC10524756 DOI: 10.1080/02770903.2023.2193631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/16/2023] [Indexed: 03/23/2023]
Abstract
OBJECTIVE Genome-wide association studies (GWASs) have identified single nucleotide polymorphisms (SNPs) in chr11p15.5 region associated with asthma and idiopathic interstitial pneumonias (IIPs). We sought to identify functional genes for asthma by combining SNPs and mRNA expression in bronchial epithelial cells (BEC) in the Severe Asthma Research Program (SARP). METHODS Correlation analyses of mRNA expression of six candidate genes (AP2A2, MUC6, MUC2, MUC5AC, MUC5B, and TOLLIP) and asthma phenotypes were performed in the longitudinal cohort (n = 156) with RNAseq in BEC, and replicated in the cross-sectional cohort (n = 155). eQTL (n = 114) and genetic association analysis of asthma severity (426 severe vs. 531 non-severe asthma) were performed, and compared with previously published GWASs of IIPs and asthma. RESULTS Higher expression of AP2A2 and MUC5AC and lower expression of MUC5B in BEC were correlated with asthma, asthma exacerbations, and T2 biomarkers (P < 0.01). SNPs associated with asthma and IIPs in previous GWASs were eQTL SNPs for MUC5AC, MUC5B, or TOLLIP, however, they were not in strong linkage disequilibrium. The risk alleles for asthma or protective alleles for IIPs were associated with higher expression of MUC5AC and lower expression of MUC5B. rs11603634, rs12788104, and rs28415845 associated with moderate-to-severe asthma or adult onset asthma in previous GWASs were not associated with asthma severity (P > 0.8). CONCLUSIONS SNPs associated with asthma in chr11p15.5 region are not associated with asthma severity neither with IIPs. Higher expression of MUC5AC and lower expression of MUC5B are risk for asthma but protective for IIPs.
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Affiliation(s)
- Xingnan Li
- Division of Genetics, Genomics and Precision Medicine, Department of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Huashi Li
- Division of Genetics, Genomics and Precision Medicine, Department of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Stephanie A. Christenson
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of California at San Francisco, San Francisco, California, USA
| | - Mario Castro
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Kansas School of Medicine, Kansas City, Kansas, USA
| | - Loren C. Denlinger
- Department of Medicine, University of Wisconsin School of Medicine & Public Health, Madison, Wisconsin, USA
| | - Serpil C. Erzurum
- Lerner Research Institute and the Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - John V. Fahy
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of California at San Francisco, San Francisco, California, USA
| | - Benjamin M. Gaston
- Wells Center for Pediatric Research and Riley Hospital for Children, Indiana University, Indianapolis, Indiana, USA
| | - Elliot Israel
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Nizar N. Jarjour
- Department of Medicine, University of Wisconsin School of Medicine & Public Health, Madison, Wisconsin, USA
| | - Bruce D. Levy
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - David T Mauger
- Department of Public Health Sciences, College of Medicine, Penn State University, Hershey, Pennsylvania, USA
| | - Wendy C. Moore
- Department of Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Joe Zein
- Lerner Research Institute and the Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Naftali Kaminski
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Sally E. Wenzel
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Prescott G. Woodruff
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of California at San Francisco, San Francisco, California, USA
| | - Eugene R. Bleecker
- Division of Genetics, Genomics and Precision Medicine, Department of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Deborah A. Meyers
- Division of Genetics, Genomics and Precision Medicine, Department of Medicine, University of Arizona, Tucson, Arizona, USA
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9
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Ha JG, Cho HJ. Unraveling the Role of Epithelial Cells in the Development of Chronic Rhinosinusitis. Int J Mol Sci 2023; 24:14229. [PMID: 37762530 PMCID: PMC10531804 DOI: 10.3390/ijms241814229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/06/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
The pathophysiology of CRS is multifactorial and complex yet needs to be completed. Recent evidence emphasizes the crucial part played by epithelial cells in the development of CRS. The epithelial cells act as physical barriers and play crucial roles in host defense, including initiating and shaping innate and adaptive immune responses. This review aims to present a comprehensive understanding of the significance of nasal epithelial cells in CRS. New research suggests that epithelial dysfunction plays a role in developing CRS through multiple mechanisms. This refers to issues with a weakened barrier function, disrupted mucociliary clearance, and irregular immune responses. When the epithelial barrier is compromised, it can lead to the passage of pathogens and allergens, triggering inflammation in the body. Furthermore, impaired mucociliary clearance can accumulate pathogens and secretions of inflammatory mediators, promoting chronic inflammation. Epithelial cells can release cytokines and chemokines, which attract and activate immune cells. This can result in an imbalanced immune response that continues to cause inflammation. The interaction between nasal epithelial cells and various immune cells leads to the production of cytokines and chemokines, which can either increase or decrease inflammation. By comprehending the role of epithelial cells in CRS, we can enhance our understanding of the disease's pathogenesis and explore new therapeutics.
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Affiliation(s)
- Jong-Gyun Ha
- Department of Otorhinolaryngology—Head and Neck Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong 14353, Republic of Korea;
| | - Hyung-Ju Cho
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- The Airway Mucus Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
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10
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Zhou L, Zhu Y, Zhang T, Zhang R, Liu Y, Li X, Zhao W, Ye J, Ju Y, Ye L. ANRIL regulating the secretion of Muc5ac induced by atmospheric PM 2.5 via NF-κB pathway in Beas-2B cells. ENVIRONMENTAL TOXICOLOGY 2023; 38:2256-2270. [PMID: 37334859 DOI: 10.1002/tox.23865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/21/2023]
Abstract
PM2.5 can cause airway inflammation and promote the excessive secretion of mucin 5ac (Muc5ac), which can further induce many respiratory diseases. Antisense non-coding RNA in the INK4 locus (ANRIL) might regulate the inflammatory responses mediated by nuclear factor kappa-B (NF-κB) signaling pathway. Beas-2B cells were used to clarify the role of ANRIL in the secretion of Muc5ac induced by PM2.5 . The siRNA was used to silence ANRIL expression. Normal and gene silenced Beas-2B cells were respectively exposed to different doses of PM2.5 for 6, 12, and 24 h. The survival rate of Beas-2B cells was detected by methyl thiazolyl tetrazolium (MTT) assay. Tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and Muc5ac levels were determined by enzyme linked immunosorbent assay (ELISA). The expression levels of NF-κB family genes and ANRIL were detected by real time polymerase chain reaction (PCR). The levels of NF-κB family proteins and NF-κB family phosphorylated proteins were determined using Western blot. Immunofluorescence experiments were performed to observe the nuclear transposition of RelA. PM2.5 exposure increased the levels of Muc5ac, IL-1β and TNF-α, and ANRIL gene expression (p < .05). With the dose and time of PM2.5 exposure increasing, the protein levels of inhibitory subunit of nuclear factor kappa-B alpha (IκB-α), RelA, and NF-κB1 decreased, the protein levels of phosphorylated RelA (p-RelA) and phosphorylated NF-κB1 (p-NF-κB1) increased, and RelA nuclear translocation increased, which indicated that the NF-κB signaling pathway was activated (p < .05). Silencing ANRIL could decrease the levels of Muc5ac, IL-1β, TNF-α, decrease NF-κB family genes expression, inhibit the degradation of IκB-α and the activation of NF-κB pathway (p < .05). ANRIL played a regulatory role in the secretion of Muc5ac and the inflammation induced by atmospheric PM2.5 via NF-κB pathway in Beas-2B cells. ANRIL could be a target for prevention and treatment of the respiratory diseases caused by PM2.5 .
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Affiliation(s)
- Liting Zhou
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Ying Zhu
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Tianrong Zhang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
- Preventive and health care, Xianlin Health Service Center of Yuhang District in Hangzhou City, Hangzhou, China
| | - Ruxuan Zhang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Ying Liu
- Department of Respiratory Medicine, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Xu Li
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Weisen Zhao
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Jiaming Ye
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Ye Ju
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Lin Ye
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
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11
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Baumli P, Liu C, Bekčić A, Fuller GG. The Role of Membrane-Tethered Mucins in Axial Epithelial Adhesion in Controlled Normal Stress Environments. Adv Biol (Weinh) 2023; 7:e2300043. [PMID: 37271859 DOI: 10.1002/adbi.202300043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 05/08/2023] [Indexed: 06/06/2023]
Abstract
The collective adhesive behavior of epithelial cell layers mediated by complex macromolecular fluid environments plays a vital role in many biological processes. Mucins, a family of highly glycosylated proteins, are known to lubricate cell-on-cell contacts in the shear direction. However, the role of mucins mediating axial epithelial adhesion in the direction perpendicular to the plane of the cell sheet has received less attention. This article subjects cell-on-cell layers of live ocular epithelia that express mucins on their apical surfaces to compression/decompression cycles and tensile loading using a customized instrument. In addition to providing compressive moduli of native cell-on-cell layers, it is found that the mucin layer between the epithelia acts as a soft cushion between the epithelial cell layers. Decompression experiments reveal mucin layers act as soft, nonlinear springs in the axial direction. The cell-on-cell layers withstand decompression before fracturing by a cohesive failure within the mucin layer. When mucin deficiency is induced via a protease treatment, it is found that the axial adhesion between the cell layers is increased. The findings which correlate changes in biological factors with changes in mechanical properties might be of interest to challenges in ophthalmology, vision care, and mucus research.
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Affiliation(s)
- Philipp Baumli
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Chunzi Liu
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Aleksandar Bekčić
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Gerald G Fuller
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
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12
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Biswas B, Roy S, Banerjee I, Jana S, Bhattacharjee B, Chakraborty S, Mondal A, Goswami R. IL-10/IL-6 ratio from nasal & oral swab samples, acts as an inflammatory indicator for COVID-19 patients infected with the delta variant. Heliyon 2023; 9:e16985. [PMID: 37292329 PMCID: PMC10238278 DOI: 10.1016/j.heliyon.2023.e16985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 05/25/2023] [Accepted: 06/02/2023] [Indexed: 06/10/2023] Open
Abstract
Background Hyper-inflammatory immune response of SARS-CoV-2 is often characterized by the release of multiple pro-inflammatory cytokines with an impact on the expression of numerous other interleukins (ILs). However, from oral and nasal swab samples the specific quantitative association of the different IL-markers with the disease progression and its relationship with the status of vaccination remains unclear. Materials and methods Patients' combined oral and nasal swab samples were collected from both non-vaccinated and double-vaccinated individuals with high (Ct value < 25) and low (Ct value > 30) viral loads, along with uninfected donors. None of the patients were critically ill, or needed ICU support. The expression of different cytokines (IL6, IL10, IL1B, IFNG) and mucin (MUC5AC, MUC1) markers were assessed between different groups by qRT-PCR. The important cytokine markers differentiating between vaccinated and non-vaccinated patients were identified by PCA. Conclusion IL6 expression was higher in non-vaccinated COVID-19 patients infected with delta-variant irrespective of their viral-load compared to uninfected individuals. However, in double-vaccinated patients, only in high viral-load patients (Ct value < 25), IL6 expression increased. In high viral-load patients, irrespective to their vaccination status, IL10 expression was lower compared to the uninfected control group. Surprisingly, IL10 expression was lower in double-vaccinated patients with Ct value > 30. IL1B, and IFNG expression remained unaltered in uninfected and infected individuals. However, MUC5AC expression was lower in non-vaccinated patients with Ct value < 25 compared to control group. Our study unveiled that IL10/IL6 ratio can be used as a biomarker for COVID-19 patients upon proper establishment of it in a clinical setting.
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Affiliation(s)
| | | | | | - Subhasis Jana
- Purba Medinipur District Hospital, West Bengal, India
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13
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Manne A, Kasi A, Esnakula AK, Paluri RK. Predictive Value of MUC5AC Signature in Pancreatic Ductal Adenocarcinoma: A Hypothesis Based on Preclinical Evidence. Int J Mol Sci 2023; 24:8087. [PMID: 37175794 PMCID: PMC10178741 DOI: 10.3390/ijms24098087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Mucin 5AC (MUC5AC) glycoprotein plays a crucial role in carcinogenesis and drug sensitivity in pancreatic ductal adenocarcinoma (PDAC), both individually and in combination with other mucins. Its function and localization are glycoform-specific. The immature isoform (detected by the CLH2 monoclonal antibody, or mab) is usually in the perinuclear (cytoplasmic) region, while the mature (45 M1, 2-11, Nd2) variants are in apical and extracellular regions. There is preclinical evidence suggesting that mature MUC5AC has prognostic and predictive (response to treatment) value. However, these findings were not validated in clinical studies. We propose a MUC5AC signature with three components of MUC5AC-localization, variant composition, and intensity-suggesting a reliable marker in combination of variants than with individual MUC5AC variants alone. We also postulate a theory to explain the occurrence of different MUC5AC variants in abnormal pancreatic lesions (benign, precancerous, and cancerous). We also analyzed the effect of mature MUC5AC on sensitivity to drugs often used in PDAC management, such as gemcitabine, 5-fluorouracil, oxaliplatin, irinotecan, cisplatin, and paclitaxel. We found preliminary evidence of its predictive value, but there is a need for large-scale studies to validate them.
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Affiliation(s)
- Ashish Manne
- Department of Internal Medicine, Division of Medical Oncology at the Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, 460 W 10th Ave, Columbus, OH 43210, USA
| | - Anup Kasi
- Medical Oncology, The University of Kansas Medical Center, 2330 Shawnee Mission Pkwy, Westwood, KS 66025, USA
| | - Ashwini Kumar Esnakula
- Department of Pathology, The Ohio State University Wexner Medical Center, 460 W 10th Ave, Columbus, OH 43210, USA
| | - Ravi Kumar Paluri
- Section of Hematology and Oncology, Department of Medicine, Wake Forest School of Medicine, 475 Vine St, Winston-Salem, NC 27157, USA
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14
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Oh ES, Ryu HW, Kim MO, Lee JW, Song YN, Park JY, Kim DY, Ro H, Lee J, Kim TD, Hong ST, Lee SU, Oh SR. Verproside, the Most Active Ingredient in YPL-001 Isolated from Pseudolysimachion rotundum var. subintegrum, Decreases Inflammatory Response by Inhibiting PKCδ Activation in Human Lung Epithelial Cells. Int J Mol Sci 2023; 24:ijms24087229. [PMID: 37108390 PMCID: PMC10138391 DOI: 10.3390/ijms24087229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/24/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory lung disease which causes breathing problems. YPL-001, consisting of six iridoids, has potent inhibitory efficacy against COPD. Although YPL-001 has completed clinical trial phase 2a as a natural drug for COPD treatment, the most effective iridoid in YPL-001 and its mechanism for reducing airway inflammation remain unclear. To find an iridoid most effectively reducing airway inflammation, we examined the inhibitory effects of the six iridoids in YPL-001 on TNF or PMA-stimulated inflammation (IL-6, IL-8, or MUC5AC) in NCI-H292 cells. Here, we show that verproside among the six iridoids most strongly suppresses inflammation. Both TNF/NF-κB-induced MUC5AC expression and PMA/PKCδ/EGR-1-induced IL-6/-8 expression are successfully reduced by verproside. Verproside also shows anti-inflammatory effects on a broad range of airway stimulants in NCI-H292 cells. The inhibitory effect of verproside on the phosphorylation of PKC enzymes is specific to PKCδ. Finally, in vivo assay using the COPD-mouse model shows that verproside effectively reduces lung inflammation by suppressing PKCδ activation and mucus overproduction. Altogether, we propose YPL-001 and verproside as candidate drugs for treating inflammatory lung diseases that act by inhibiting PKCδ activation and its downstream pathways.
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Affiliation(s)
- Eun Sol Oh
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea
- Department of Biological Sciences, College of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyung Won Ryu
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea
| | - Mun-Ock Kim
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea
| | - Jae-Won Lee
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea
| | - Yu Na Song
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea
- Department of Biological Sciences, College of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ji-Yoon Park
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea
- Department of Anatomy & Cell Biology, Department of Medical Science, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Doo-Young Kim
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea
| | - Hyunju Ro
- Department of Biological Sciences, College of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jinhyuk Lee
- Disease Target Structure Research Center, KRIBB, Daejeon 34141, Republic of Korea
- Department of Bioinformatics, KRIBB School of Bioscience, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Tae-Don Kim
- Immunotherapy Research Center, KRIBB, Daejeon 34141, Republic of Korea
| | - Sung-Tae Hong
- Department of Anatomy & Cell Biology, Department of Medical Science, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Su Ui Lee
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea
| | - Sei-Ryang Oh
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Republic of Korea
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15
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Rojas-Quintero J, Laucho-Contreras ME, Wang X, Fucci QA, Burkett PR, Kim SJ, Zhang D, Tesfaigzi Y, Li Y, Bhashyam AR, Li Z, Khamas H, Celli B, Pilon AL, Polverino F, Owen CA. CC16 augmentation reduces exaggerated COPD-like disease in Cc16-deficient mice. JCI Insight 2023; 8:130771. [PMID: 36787195 PMCID: PMC10070105 DOI: 10.1172/jci.insight.130771] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
Low Club Cell 16 kDa protein (CC16) plasma levels are linked to accelerated lung function decline in patients with chronic obstructive pulmonary disease (COPD). Cigarette smoke-exposed (CS-exposed) Cc16-/- mice have exaggerated COPD-like disease associated with increased NF-κB activation in their lungs. It is unclear whether CC16 augmentation can reverse exaggerated COPD in CS-exposed Cc16-/- mice and whether increased NF-κB activation contributes to the exaggerated COPD in CS-exposed Cc16-/- lungs. CS-exposed WT and Cc16-/- mice were treated with recombinant human CC16 (rhCC16) or an NF-κB inhibitor versus vehicle beginning at the midpoint of the exposures. COPD-like disease and NF-κB activation were measured in the lungs. RhCC16 limited the progression of emphysema, small airway fibrosis, and chronic bronchitis-like disease in WT and Cc16-/- mice partly by reducing pulmonary inflammation (reducing myeloid leukocytes and/or increasing regulatory T and/or B cells) and alveolar septal cell apoptosis, reducing NF-κB activation in CS-exposed Cc16-/- lungs, and rescuing the reduced Foxj1 expression in CS-exposed Cc16-/- lungs. IMD0354 treatment reduced exaggerated lung inflammation and rescued the reduced Foxj1 expression in CS-exposed Cc16-/- mice. RhCC16 treatment reduced NF-κB activation in luciferase reporter A549 cells. Thus, rhCC16 treatment limits COPD progression in CS-exposed Cc16-/- mice partly by inhibiting NF-κB activation and represents a potentially novel therapeutic approach for COPD.
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Affiliation(s)
- Joselyn Rojas-Quintero
- Section of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Maria Eugenia Laucho-Contreras
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
- Fundación Neumológica Colombiana, Bogotá, Colombia
| | - Xiaoyun Wang
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
- Clinical and Experimental Therapeutics program, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, Georgia, USA
| | - Quynh-Anh Fucci
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Patrick R Burkett
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Se-Jin Kim
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Duo Zhang
- Clinical and Experimental Therapeutics program, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, Georgia, USA
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Yohannes Tesfaigzi
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Yuhong Li
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Abhiram R Bhashyam
- Department of Orthopedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Zhang Li
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Haider Khamas
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Bartolome Celli
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | | | - Francesca Polverino
- Section of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Caroline A Owen
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
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16
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The Tobacco Smoke Component, Acrolein, as a Major Culprit in Lung Diseases and Respiratory Cancers: Molecular Mechanisms of Acrolein Cytotoxic Activity. Cells 2023; 12:cells12060879. [PMID: 36980220 PMCID: PMC10047238 DOI: 10.3390/cells12060879] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/05/2023] [Accepted: 03/08/2023] [Indexed: 03/18/2023] Open
Abstract
Acrolein, a highly reactive unsaturated aldehyde, is a ubiquitous environmental pollutant that seriously threatens human health and life. Due to its high reactivity, cytotoxicity and genotoxicity, acrolein is involved in the development of several diseases, including multiple sclerosis, neurodegenerative diseases such as Alzheimer’s disease, cardiovascular and respiratory diseases, diabetes mellitus and even the development of cancer. Traditional tobacco smokers and e-cigarette users are particularly exposed to the harmful effects of acrolein. High concentrations of acrolein have been found in both mainstream and side-stream tobacco smoke. Acrolein is considered one of cigarette smoke’s most toxic and harmful components. Chronic exposure to acrolein through cigarette smoke has been linked to the development of asthma, acute lung injury, chronic obstructive pulmonary disease (COPD) and even respiratory cancers. This review addresses the current state of knowledge on the pathological molecular mechanisms of acrolein in the induction, course and development of lung diseases and cancers in smokers.
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17
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Targeting the Semaphorin3E-plexinD1 complex in allergic asthma. Pharmacol Ther 2023; 242:108351. [PMID: 36706796 DOI: 10.1016/j.pharmthera.2023.108351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 01/09/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023]
Abstract
Asthma is a heterogenous airway disease characterized by airway inflammation and remodeling. It affects more than 300 million people worldwide and poses a significant burden on society. Semaphorins, discovered initially as neural guidance molecules, are ubiquitously expressed in various organs and regulate multiple signaling pathways. Interestingly, Semaphorin3E is a critical molecule in lung pathophysiology through its role in both lung development and homeostasis. Semaphorin3E binds to plexinD1, mediating regulatory effects on cell migration, proliferation, and angiogenesis. Recent in vitro and in vivo studies have demonstrated that the Semaphorin3E-plexinD1 axis is implicated in asthma, impacting inflammatory and structural cells associated with airway inflammation, tissue remodeling, and airway hyperresponsiveness. This review details the Semaphorin3E-plexinD1 axis in various aspects of asthma and highlights future directions in research including its potential role as a therapeutic target in airway allergic diseases.
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18
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Kayongo A, Robertson NM, Siddharthan T, Ntayi ML, Ndawula JC, Sande OJ, Bagaya BS, Kirenga B, Mayanja-Kizza H, Joloba ML, Forslund SK. Airway microbiome-immune crosstalk in chronic obstructive pulmonary disease. Front Immunol 2023; 13:1085551. [PMID: 36741369 PMCID: PMC9890194 DOI: 10.3389/fimmu.2022.1085551] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/28/2022] [Indexed: 01/19/2023] Open
Abstract
Chronic Obstructive Pulmonary Disease (COPD) has significantly contributed to global mortality, with three million deaths reported annually. This impact is expected to increase over the next 40 years, with approximately 5 million people predicted to succumb to COPD-related deaths annually. Immune mechanisms driving disease progression have not been fully elucidated. Airway microbiota have been implicated. However, it is still unclear how changes in the airway microbiome drive persistent immune activation and consequent lung damage. Mechanisms mediating microbiome-immune crosstalk in the airways remain unclear. In this review, we examine how dysbiosis mediates airway inflammation in COPD. We give a detailed account of how airway commensal bacteria interact with the mucosal innate and adaptive immune system to regulate immune responses in healthy or diseased airways. Immune-phenotyping airway microbiota could advance COPD immunotherapeutics and identify key open questions that future research must address to further such translation.
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Affiliation(s)
- Alex Kayongo
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda,Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda,Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda,Department of Medicine, Center for Emerging Pathogens, Rutgers, The State University of New Jersey, New Jersey Medical School, Newark, NJ, United States
| | | | - Trishul Siddharthan
- Division of Pulmonary Medicine, School of Medicine, University of Miami, Miami, FL, United States
| | - Moses Levi Ntayi
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda,Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda,Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Josephine Caren Ndawula
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | - Obondo J. Sande
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Bernard S. Bagaya
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Bruce Kirenga
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | - Harriet Mayanja-Kizza
- Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Moses L. Joloba
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Sofia K. Forslund
- Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany,Experimental and Clinical Research Center, a cooperation of Charité - Universitatsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany,Charité-Universitatsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany,Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany,*Correspondence: Sofia K. Forslund,
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19
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Seo EH, Lee SH, Choi BY, Oh CS, Kim JK. Exogenous Lipoxin A4 attenuates IL4-induced Mucin Expression in Human Airway Epithelial Cells. Int J Med Sci 2023; 20:406-414. [PMID: 36860679 PMCID: PMC9969498 DOI: 10.7150/ijms.79525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 01/27/2023] [Indexed: 02/16/2023] Open
Abstract
Introduction: The proinflammatory cytokine interleukin-4 (IL-4) induces mucus hypersecretion by human airway epithelial cells and the MAP kinase signalling pathway may be important in terms of IL-4-induced MUC5AC gene expression. Lipoxin A4 (LXA4) is an arachidonic acid-derived mediator that promotes inflammation by binding to the anti-inflammatory receptors (ALXs) or the formyl-peptide receptor like-1 (FPRL1) protein expressed by airway epithelial cells. Here, we explore the effects of LXA4 on IL-4-induced mucin gene expression in, and secretion from, human airway epithelial cells. Methods: We co-treated cells with IL-4 (20 ng/mL) and LXA4 (1 nM) and measured the expression levels of mRNAs encoding MUC5AC and 5B via real-time polymerase chain reaction; protein expression levels were determined by Western blotting and immunocytofluorescence. The ability of IL-4 and LXA4 to suppress protein expression was determined by Western blotting. Results: IL-4 increased MUC5AC and 5B gene and protein expression. LXA4 suppressed IL-4-induced MUC5AC and 5B gene and protein expression by interacting with the IL4 receptor and mitogen-activated protein kinase (MAPK) pathway, including both phospho-p38 MAPK and phospho-extracellular signal-regulated kinase (phospho-ERK). IL-4 and LXA4 increased and decreased, respectively, the number of cells that stained with anti-MUC5AC and 5B antibodies. Conclusions: LXA4 may regulate mucus hypersecretion induced by IL4 in human airway epithelial cells.
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Affiliation(s)
- Eun-Hye Seo
- BKPlus21, Department of Microbiology, School of medicine, Konkuk University, Seoul, Korea
| | - Seung Hyun Lee
- BKPlus21, Department of Microbiology, School of medicine, Konkuk University, Seoul, Korea
| | - Bo Yoon Choi
- Departments of Otorhinolaryngology-Head & Neck Surgery, School of medicine, Konkuk University, Seoul, Korea
| | - Chung-Sik Oh
- Department of Anesthesiology and Pain Medicine, Konkuk University School of Medicine, Konkuk University Medical Center, Seoul, Korea
| | - Jin Kook Kim
- Departments of Otorhinolaryngology-Head & Neck Surgery, School of medicine, Konkuk University, Seoul, Korea
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20
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Lohova E, Pilmane M. Expression of MUC-2, MUC-6, NAPE-PLD, IL-6 and IL-13 in Healthy and Metaplastic Bronchial Epithelium. Diseases 2022; 11:diseases11010005. [PMID: 36648870 PMCID: PMC9844475 DOI: 10.3390/diseases11010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/18/2022] [Accepted: 12/24/2022] [Indexed: 12/29/2022] Open
Abstract
Background: The normal tissue structure of the respiratory system is necessary to provide adequate protection of the airways and lungs. Prolonged exposure to trigger factors can result in adaptive mechanism activation and lead to the development of chronic pulmonary diseases or even dysplastic changes. Materials and methods: Respiratory system material with a pseudostratified ciliated epithelium was obtained from 12 patients (aged 16 to 95), and material with a stratified squamosa epithelium was obtained from six patients (aged 23 to 93). Routine staining was performed, and an immunohistochemistry was conducted for MUC-2, MUC-6, NAPE-PLD, IL-6 and IL-13. Results: Inflammatory processes were not detected in any of the specimens. A number of correlations were identified, with the most important being a strong positive correlation for IL-13 between the alveolar epithelium and alveolar macrophages and a strong positive correlation for IL-6 between the alveolar epithelium and alveolar macrophages in the stratified squamous epithelium group. We also detected a statistically significant difference in IL-6 in alveolar macrophages. Conclusions: There were no signs of dysplastic changes in either group. Increased secretion of IL-13 in the stratified squamous epithelium group shows its involvement in metaplastic changes in the bronchial epithelium. The secretion of atypical factors by hyaline cartilage demonstrates its plasticity and adaptability.
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21
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Cell-Free Supernatant from Lactobacillus and Streptococcus Strains Modulate Mucus Production via Nf-κB/CREB Pathway in Diesel Particle Matter-Stimulated NCI-H292 Airway Epithelial Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010061. [PMID: 36615255 PMCID: PMC9822189 DOI: 10.3390/molecules28010061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/12/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
Airway epithelial cells are a major site of airway inflammation and may play an important role in the pathogenesis of chronic obstructive pulmonary disease (COPD). Diesel particulate matter (DPM) is associated with mucus hypersecretion and airway inflammation and has been reported to overexpress airway mucin in the NCI-H292 airway epithelial cells. Therefore, regulation of mucin hypersecretion is essential for developing novel anti-inflammatory agents. This study aimed to investigate the effects of cell-free supernatant (CFS) from Lactobacillus and Streptococcus on nitro oxide (NO) production in RAW264.7 and proteins associated with mucus production in NCI-H292 cells. We observed that NO production was reduced by CFS from Lactobacillus and Streptococcus in RAW 264.7, and MUC4, MUC5AC, and MUC5B gene expression was increased by phosphorylation of nuclear factor kappa B (NF-κB) p65 and cAMP response element-binding protein (CREB) in DPM-stimulated NCI-H292 cells. However, CFS from L. paracasei MG4272, MG4577, L. gasseri MG4247, and S. thermophilus MG5140 inhibited mRNA expression related to mucus production by downregulating the CREB/NfκB signaling pathway. These results suggest that CFS from L. paracasei MG4272, MG4577, L. gasseri MG4247, and S. thermophilus MG5140 can contribute as a strategic candidate to the prevention of airway inflammatory diseases caused by DPM.
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22
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Kawasumi M, Araki Y, Mito M, Fukuhara K, Zaitsu J, Kuraoka K, Senoo T. A Case of Invasive Mucinous Adenocarcinoma with Acute Respiratory Distress Syndrome Diagnosed by Autopsy Findings. Intern Med 2022. [PMID: 36418103 PMCID: PMC10400389 DOI: 10.2169/internalmedicine.0926-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
We herein report a fatal case of invasive mucinous adenocarcinoma (IMA) with acute respiratory distress syndrome (ARDS) diagnosed based on autopsy findings. A 76-year-old man presented with severe respiratory discomfort on admission. Computed tomography (CT) revealed a peripheral distribution of consolidation. Although his respiratory status improved after steroid therapy, re-exacerbation occurred, and the patient died on day 131. A bronchoscopic lung biopsy had shown organizing pneumonia, but a post-mortem examination surprisingly revealed IMA with organizing pneumonia. IMA presenting with ARDS as the first symptom is extremely rare.
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Affiliation(s)
- Muneo Kawasumi
- The Clinical Training Center, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Japan
| | - Yusuke Araki
- Department of Respiratory Medicine, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Japan
| | - Mineyo Mito
- Department of Respiratory Medicine, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Japan
| | - Kazuhide Fukuhara
- Department of Respiratory Medicine, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Japan
| | - Junichi Zaitsu
- Department of Diagnostic Pathology, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Japan
| | - Kazuya Kuraoka
- Department of Diagnostic Pathology, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Japan
| | - Tadashi Senoo
- Department of Respiratory Medicine, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Japan
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23
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Khalfaoui L, Symon FA, Couillard S, Hargadon B, Chaudhuri R, Bicknell S, Mansur AH, Shrimanker R, Hinks TC, Pavord ID, Fowler SJ, Brown V, McGarvey LP, Heaney LG, Austin CD, Howarth PH, Arron JR, Choy DF, Bradding P. Airway remodelling rather than cellular infiltration characterizes both type2 cytokine biomarker-high and -low severe asthma. Allergy 2022; 77:2974-2986. [PMID: 35579040 PMCID: PMC9790286 DOI: 10.1111/all.15376] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/31/2022] [Accepted: 04/19/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND The most recognizable phenotype of severe asthma comprises people who are blood eosinophil and FeNO-high, driven by type 2 (T2) cytokine biology, which responds to targeted biological therapies. However, in many people with severe asthma, these T2 biomarkers are suppressed but poorly controlled asthma persists. The mechanisms driving asthma in the absence of T2 biology are poorly understood. OBJECTIVES To explore airway pathology in T2 biomarker-high and -low severe asthma. METHODS T2 biomarker-high severe asthma (T2-high, n = 17) was compared with biomarker-intermediate (T2-intermediate, n = 21) and biomarker-low (T2-low, n = 20) severe asthma and healthy controls (n = 28). Bronchoscopy samples were processed for immunohistochemistry, and sputum for cytokines, PGD2 and LTE4 measurements. RESULTS Tissue eosinophil, neutrophil and mast cell counts were similar across severe asthma phenotypes and not increased when compared to healthy controls. In contrast, the remodelling features of airway smooth muscle mass and MUC5AC expression were increased in all asthma groups compared with health, but similar across asthma subgroups. Submucosal glands were increased in T2-intermediate and T2-low asthma. In spite of similar tissue cellular inflammation, sputum IL-4, IL-5 and CCL26 were increased in T2-high versus T2-low asthma, and several further T2-associated cytokines, PGD2 and LTE4 , were increased in T2-high and T2-intermediate asthma compared with healthy controls. CONCLUSIONS Eosinophilic tissue inflammation within proximal airways is suppressed in T2 biomarker-high and T2-low severe asthma, but inflammatory and structural cell activation is present, with sputum T2-associated cytokines highest in T2 biomarker-high patients. Airway remodelling persists and may be important for residual disease expression beyond eosinophilic exacerbations. Registered at ClincialTrials.gov: NCT02883530.
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Affiliation(s)
- Latifa Khalfaoui
- Department of Respiratory Sciences, Leicester Respiratory NIHR BRC, Glenfield HospitalUniversity of LeicesterLeicesterUK
| | - Fiona A. Symon
- Department of Respiratory Sciences, Leicester Respiratory NIHR BRC, Glenfield HospitalUniversity of LeicesterLeicesterUK
| | - Simon Couillard
- NIHR Oxford Respiratory BRC, Nuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Beverley Hargadon
- Department of Respiratory Sciences, Leicester Respiratory NIHR BRC, Glenfield HospitalUniversity of LeicesterLeicesterUK
| | - Rekha Chaudhuri
- Gartnavel General Hospital, Glasgow, and Institute of Infection, Immunity and InflammationUniversity of GlasgowGlasgowUK
| | - Steve Bicknell
- Gartnavel General Hospital, Glasgow, and Institute of Infection, Immunity and InflammationUniversity of GlasgowGlasgowUK
| | - Adel H. Mansur
- University of Birmingham and Heartlands HospitalUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUK
| | - Rahul Shrimanker
- NIHR Oxford Respiratory BRC, Nuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Timothy S. C. Hinks
- NIHR Oxford Respiratory BRC, Nuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Ian D. Pavord
- NIHR Oxford Respiratory BRC, Nuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Stephen J. Fowler
- School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre and NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Foundation TrustUniversity of ManchesterManchesterUK
| | - Vanessa Brown
- Wellcome‐Wolfson‐ Centre for Experimental MedicineQueen's University Belfast School of Medicine Dentistry and Biomedical SciencesBelfastUK
| | - Lorcan P. McGarvey
- Wellcome‐Wolfson‐ Centre for Experimental MedicineQueen's University Belfast School of Medicine Dentistry and Biomedical SciencesBelfastUK
| | - Liam G. Heaney
- Wellcome‐Wolfson‐ Centre for Experimental MedicineQueen's University Belfast School of Medicine Dentistry and Biomedical SciencesBelfastUK
| | | | - Peter H. Howarth
- School of Clinical and Experimental Sciences, NIHR Southampton Biomedical Research CentreUniversity of SouthamptonSouthamptonUK
| | | | | | - Peter Bradding
- Department of Respiratory Sciences, Leicester Respiratory NIHR BRC, Glenfield HospitalUniversity of LeicesterLeicesterUK
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24
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Volpato M, Vialaret J, Hirtz C, Petit A, Suehs C, Patarin J, Matzner-Lober E, Vachier I, Molinari N, Bourdin A, Charriot J. Rheology predicts sputum eosinophilia in patients with muco-obstructive lung diseases. Biochem Biophys Res Commun 2022; 622:64-71. [PMID: 35843096 DOI: 10.1016/j.bbrc.2022.07.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 11/02/2022]
Abstract
BACKGROUND Mucus is known to play a pathogenic role in muco-obstructive lung diseases, but little is known about the determinants of mucus rheology. The purpose of this study is to determine which sputum components influence sputum rheology in patients with muco-obstructive lung diseases. METHODS We performed a cross sectional prospective cohort study. Spontaneous sputum was collected from consecutive patients with muco-obstructive lung diseases. Sputum rheology was assessed using the Rheomuco® rheometer (Rheonova, Grenoble); the elastic modulus G', viscous modulus G″, and the critical stress threshold σc were recorded. Key quantitative and qualitative biological sputum components were determined by cytology, nucleic acid amplification tests and mass spectrometry. RESULTS 48 patients were included from January to August 2019. Among them, 10 had asthma, 14 COPD and 24 non-CF bronchiectasis (NCFB). The critical stress threshold σc predicted a sputum eosinophilia superior to 1.25% with 89.19% accuracy (AUC = 0.8762). G' and G″ are positively correlated with MUC5AC protein concentration ((rho = 0.361; P = .013) and (rho = 0.335; P = .021), respectively). σc was positively correlated with sputum eosinophilia (rho = 0.394; P = .012), MUC5B (rho = 0.552; P < .001) and total protein (rho = 0.490; P < .001) concentrations. G' and G″ were significantly higher in asthma patients (G' = 14.49[7.18-25.26]Pa, G'' = 3.0[2.16-5.38]Pa) compared to COPD (G' = 5.01[2.94-6.48]Pa, P = .010; G'' = 1.45[1.16-1.94]Pa, P = .006) and to NCFB (G' = 4.99[1.49-10.49]Pa, P = .003; G'' = 1.46[0.71-2.47]Pa, P = .002). CONCLUSION In muco-obstructive lung diseases, rheology predicts sputum eosinophilia and is correlated with mucin concentrations, regardless of the underlying disease. CLINICAL TRIAL REGISTRATION (registrar, website, and registration number), where applicable NCT04081740.
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Affiliation(s)
- Mathilde Volpato
- Department of Respiratory Diseases, Univ Montpellier, CHU Montpellier, Montpellier, France.
| | - Jerome Vialaret
- Clinical Proteomics Platform, LBPC, IRMB, CHU Montpellier, Montpellier University, Montpellier, France.
| | - Christophe Hirtz
- Clinical Proteomics Platform, LBPC, IRMB, CHU Montpellier, Montpellier University, Montpellier, France.
| | - Aurélie Petit
- Department of Respiratory Diseases, Univ Montpellier, CHU Montpellier, Montpellier, France; Medecine Biologie Meditérrannée, France.
| | - Carey Suehs
- Department of Respiratory Diseases, Univ Montpellier, CHU Montpellier, Montpellier, France; Department of Medical Information, Montpellier University Hospitals, La Colombière Hospital, Montpellier Cedex, France.
| | - Jérémy Patarin
- Rheonova, domaine universitaire, 1270 rue de la piscine, 38400 Saint Martin d'Hères, France.
| | - Eric Matzner-Lober
- Continuing Education ENSAE-ENSAI (CEPE), Rennes University 2, Rennes, France.
| | | | - Nicolas Molinari
- Department of Medical Information, Montpellier University Hospitals, La Colombière Hospital, Montpellier Cedex, France; IMAG, CNRS, Univ Montpellier, CHU Montpellier, Montpellier, France.
| | - Arnaud Bourdin
- Department of Respiratory Diseases, Univ Montpellier, CHU Montpellier, Montpellier, France; PhyMedExp INSERM U1046, Montpellier, France.
| | - Jeremy Charriot
- Department of Respiratory Diseases, Univ Montpellier, CHU Montpellier, Montpellier, France; PhyMedExp INSERM U1046, Montpellier, France.
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25
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Kang Y, Park H, Choe BH, Kang B. The Role and Function of Mucins and Its Relationship to Inflammatory Bowel Disease. Front Med (Lausanne) 2022; 9:848344. [PMID: 35602503 PMCID: PMC9120656 DOI: 10.3389/fmed.2022.848344] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 04/15/2022] [Indexed: 02/06/2023] Open
Abstract
Mucus is present throughout the gastrointestinal tract and is essential for regulating gut microbiota homeostasis and preventing disease by protecting the gastrointestinal barrier from microorganisms, pathogens and toxins or other irritants. Mucin (MUC)-2 is a secreted protein produced by epithelial goblet cells as the main component of mucus. Defects in the gastrointestinal tract, such as inflammation and ulcers, cause damage to the mucus barrier, which can worsen mucus quality and reduce mucus production. Therefore, we would like to review the characteristics of MUC2 and its role in intestinal disorders and highlight the importance of further studies. We also investigated whether the role of MUC2 differs between children and adults, ulcerative colitis (UC) and Crohn's disease (CD).
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Affiliation(s)
- Youra Kang
- Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Hyeonjeong Park
- Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Byung-Ho Choe
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Ben Kang
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, South Korea
- *Correspondence: Ben Kang
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26
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Tajiri T, Matsumoto H, Jinnai M, Kanemitsu Y, Nagasaki T, Iwata T, Inoue H, Nakaji H, Oguma T, Ito I, Niimi A. Pathophysiological relevance of sputum MUC5AC and MUC5B levels in patients with mild asthma. Allergol Int 2022; 71:193-199. [PMID: 34656442 DOI: 10.1016/j.alit.2021.09.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/28/2021] [Accepted: 09/07/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Airway mucus hypersecretion is an important pathophysiological feature of asthma. MUC5AC and MUC5B are the major secreted polymeric mucins in airways, and their compositions affect mucus properties. Despite the increasing appreciation of MUC5AC and MUC5B compositions in asthmatic airways, their pathophysiological relevance remains to be fully understood in humans. METHODS In this cross-sectional study, we prospectively enrolled newly referred steroid-untreated patients with mild asthma and healthy controls. We compared induced sputum MUC5AC and MUC5B levels between patients and controls. Subsequently, we assessed the correlation between MUC5AC and MUC5B levels and clinical indices in patients. Sputum MUC5AC and MUC5B levels were measured using enzyme-linked immunosorbent assays. RESULTS Sputum MUC5AC and MUC5B levels were significantly higher in patients (n = 87) than in controls (n = 22) (p = 0.0002 and p = 0.006, respectively). The ratio of sputum MUC5AC to MUC5B tended to be higher in patients than in controls (p = 0.07). Sputum MUC5AC levels significantly and positively correlated with fractional exhaled nitric oxide at expiratory flow of 50 mL/s (Spearman's rho = 0.29, p = 0.006), sputum eosinophil proportion (rho = 0.34, p = 0.0013), and airway sensitivity (rho = 0.39, p = 0.0005). By contrast, sputum MUC5B levels significantly and positively correlated with airway sensitivity (rho = 0.35, p = 0.002) and negatively correlated with airway reactivity (rho = -0.33, p = 0.004). CONCLUSIONS Sputum MUC5AC is increased by protein levels and involved in airway type 2/eosinophilic inflammation and airway hyperresponsiveness in steroid-untreated patients with mild asthma.
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Affiliation(s)
- Tomoko Tajiri
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan; Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University School of Medical Sciences, Aichi, Japan.
| | - Hisako Matsumoto
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan; Department of Respiratory Medicine and Allergology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Makiko Jinnai
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - Yoshihiro Kanemitsu
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan; Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University School of Medical Sciences, Aichi, Japan
| | - Tadao Nagasaki
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - Toshiyuki Iwata
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - Hideki Inoue
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - Hitoshi Nakaji
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - Tsuyoshi Oguma
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - Isao Ito
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - Akio Niimi
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan; Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University School of Medical Sciences, Aichi, Japan
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27
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Lysophosphatidylserine Induces MUC5AC Production via the Feedforward Regulation of the TACE-EGFR-ERK Pathway in Airway Epithelial Cells in a Receptor-Independent Manner. Int J Mol Sci 2022; 23:ijms23073866. [PMID: 35409225 PMCID: PMC8999057 DOI: 10.3390/ijms23073866] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/20/2022] [Accepted: 03/29/2022] [Indexed: 02/05/2023] Open
Abstract
Lysophosphatidylserine (LysoPS) is an amphipathic lysophospholipid that mediates a broad spectrum of inflammatory responses through a poorly characterized mechanism. Because LysoPS levels can rise in a variety of pathological conditions, we sought to investigate LysoPS's potential role in airway epithelial cells that actively participate in lung homeostasis. Here, we report a previously unappreciated function of LysoPS in production of a mucin component, MUC5AC, in the airway epithelial cells. LysoPS stimulated lung epithelial cells to produce MUC5AC via signaling pathways involving TACE, EGFR, and ERK. Specifically, LysoPS- dependent biphasic activation of ERK resulted in TGF-α secretion and strong EGFR phosphorylation leading to MUC5AC production. Collectively, LysoPS induces the expression of MUC5AC via a feedback loop composed of proligand synthesis and its proteolysis by TACE and following autocrine EGFR activation. To our surprise, we were not able to find a role of GPCRs and TLR2, known LyoPS receptors in LysoPS-induced MUC5AC production in airway epithelial cells, suggesting a potential receptor-independent action of LysoPS during inflammation. This study provides new insight into the potential function and mechanism of LysoPS as an emerging lipid mediator in airway inflammation.
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28
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Luo C, Xia B, Zhong R, Shen D, Li J, Chen L, Zhang H. Early-Life Nutrition Interventions Improved Growth Performance and Intestinal Health via the Gut Microbiota in Piglets. Front Nutr 2022; 8:783688. [PMID: 35047544 PMCID: PMC8762325 DOI: 10.3389/fnut.2021.783688] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/29/2021] [Indexed: 12/18/2022] Open
Abstract
Intestinal infections in piglets are the main causes of morbidity before and after weaning. Studies have not explored approaches for combining pre-weaning and post-weaning nutritional strategies to sustain optimal gut health. The current study thus sought to explore the effects of early-life nutrition interventions through administration of synthetic milk on growth performance and gut health in piglets from 3 to 30 days of age. Twelve sows were randomly allocated to control group (CON) and early-life nutrition interventions group (ENI). Piglets were fed with the same creep diet from 7 days of age ad libitum. Piglets in the ENI group were provided with additional synthetic milk from Day 3 to Day 30. The results showed that early-life nutrition interventions improved growth performance, liver weight, spleen weight, and reduced diarrhea rate of piglets after weaning (P < 0.05). Early-life nutrition interventions significantly upregulated expression of ZO-1, Occludin, Claudin4, GALNT1, B3GNT6, and MUC2 in colonic mucosa at mRNA level (P < 0.05). Early-life nutrition interventions reduced activity of alkaline phosphatase (AKP) in serum and the content of lipopolysaccharides (LPS) in plasma (P < 0.05). The number of goblet cells and crypt depth of colon of piglets was significantly higher in piglets in the ENI group relative to that of piglets in the CON group (P < 0.05). The relative mRNA expression levels of MCP-1, TNF-α, IL-1β, and IL-8, and the protein expression levels of TNF-α, IL-6, and IL-8 in colonic mucosa of piglets in the ENI group were lower compared with those of piglets in the CON group (P < 0.05). Relative abundance of Lactobacillus in colonic chyme and mucosa of piglets in the ENI group was significantly higher relative to that of piglets in the CON group (P < 0.05). Correlation analysis indicated that abundance of Lactobacillus was positively correlated with the relative mRNA expression levels of ZO-1, Claudin4, and GALNT1, and it was negatively correlated with the level of MCP-1 in colonic chyme and mucosa. In summary, the findings of this study showed that early-life nutrition interventions improved growth performance, colonic barrier, and reduced inflammation in the colon by modulating composition of gut microbiota in piglets. Early-life nutrition intervention through supplemental synthetic milk is a feasible measure to improve the health and reduce the number of deaths of piglets.
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Affiliation(s)
- Chengzeng Luo
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Animal Science, Xinjiang Agricultural University, Urumqi, China
| | - Bing Xia
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Animal Science and Technology, Northwest A&F University, Xianyang, China
| | - Ruqing Zhong
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dan Shen
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jiaheng Li
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Liang Chen
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
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29
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Mucins Dynamics in Physiological and Pathological Conditions. Int J Mol Sci 2021; 22:ijms222413642. [PMID: 34948435 PMCID: PMC8707880 DOI: 10.3390/ijms222413642] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/10/2021] [Accepted: 12/16/2021] [Indexed: 12/14/2022] Open
Abstract
Maintaining intestinal health requires clear segregation between epithelial cells and luminal microbes. The intestinal mucus layer, produced by goblet cells (GCs), is a key element in maintaining the functional protection of the epithelium. The importance of the gut mucus barrier is highlighted in mice lacking Muc2, the major form of secreted mucins. These mice show closer bacterial residence to epithelial cells, develop spontaneous colitis and became moribund when infected with the attaching and effacing pathogen, Citrobacter rodentium. Furthermore, numerous observations have associated GCs and mucus layer dysfunction to the pathogenesis of inflammatory bowel disease (IBD). However, the molecular mechanisms that regulate the physiology of GCs and the mucus layer remain obscured. In this review, we consider novel findings describing divergent functionality and expression profiles of GCs subtypes within intestinal crypts. We also discuss internal (host) and external (diets and bacteria) factors that modulate different aspects of the mucus layer as well as the contribution of an altered mucus barrier to the onset of IBD.
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30
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Simões FB, Kmit A, Amaral MD. Cross-talk of inflammatory mediators and airway epithelium reveals the cystic fibrosis transmembrane conductance regulator as a major target. ERJ Open Res 2021; 7:00247-2021. [PMID: 34912883 PMCID: PMC8666577 DOI: 10.1183/23120541.00247-2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 07/13/2021] [Indexed: 11/05/2022] Open
Abstract
Airway inflammation, mucus hyperproduction and epithelial remodelling are hallmarks of many chronic airway diseases, including asthma, COPD and cystic fibrosis. While several cytokines are dysregulated in these diseases, most studies focus on the response of airways to interleukin (IL)-4 and IL-13, which have been shown to induce mucus hyperproduction and shift the airway epithelium towards a hypersecretory phenotype. We hypothesised that other cytokines might induce the expression of chloride (Cl-) channels/transporters, and regulate epithelial differentiation and mucus production. To this end, fully differentiated human airway basal cells (BCi-NS1.1) were treated with cytokines identified as dysregulated in those diseases, namely IL-8, IL-1β, IL-4, IL-17A, IL-10 and IL-22, and tumour necrosis factor-α. Our results show that the cystic fibrosis transmembrane conductance regulator (CFTR) is the main Cl- channel modulated by inflammation, in contrast to transmembrane protein 16A (TMEM16A), whose levels only changed with IL-4. Furthermore, we identified novel roles for IL-10 and IL-22 by influencing epithelial differentiation towards ciliated cells and away from pulmonary ionocytes. In contrast, IL-1β and IL-4 reduced the number of ciliated cells while increasing club cells. Interestingly, while IL-1β, IL-4 and IL-10 upregulated CFTR expression, IL-4 was the only cytokine that increased both its function and the number of CFTR-expressing club cells, suggesting that this cell type may be the main contributor for CFTR function. Additionally, all cytokines assessed increased mucus production through a differential upregulation of MUC5AC and MUC5B transcript levels. This study reveals a novel insight into differentiation resulting from the cross-talk of inflammatory mediators and airway epithelial cells, which is particularly relevant for chronic airway diseases.
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Affiliation(s)
- Filipa B Simões
- Faculty of Sciences, University of Lisbon, BioISI - Biosystems and Integrative Sciences Institute, Lisbon, Portugal
| | - Arthur Kmit
- Faculty of Sciences, University of Lisbon, BioISI - Biosystems and Integrative Sciences Institute, Lisbon, Portugal
| | - Margarida D Amaral
- Faculty of Sciences, University of Lisbon, BioISI - Biosystems and Integrative Sciences Institute, Lisbon, Portugal
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Guo J, Xu S. Astragaloside IV suppresses histamine-induced inflammatory factors and mucin 5 subtype AC overproduction in nasal epithelial cells via regulation of inflammation-related genes. Bioengineered 2021; 12:6045-6056. [PMID: 34482800 PMCID: PMC8806810 DOI: 10.1080/21655979.2021.1965813] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Allergic rhinitis (AR) is a symptomatic allergic disease that leads to severe inflammation. Astragaloside IV (AS-IV) is a primary active component of Astragalus membranaceus and exerts immune-regulation and anti-inflammatory effects. However, the pharmacological effect of AS-IV in the nasal epithelial cells (NECs) has not been reported. The present study aimed to assess the effect of AS-IV on inflammatory cytokines and mucin 5 subtype AC (MUC5AC) overproduction in histamine (His)-stimulated NECs and its underlying mechanism. NECs were stimulated with or without His for 24 h in the absence or presence of AS-IV. The levels of inflammatory cytokines including IL-6, IL-8, MCP-1, IL-1β, granulocyte-macrophage colony-stimulating factor (GM-CSF), eotaxin, and MUC5AC were assayed. Our findings indicated that AS-IV inhibited His-evoked release and expression of inflammatory cytokines and MUC5AC in NECs. RNA-seq analyses indicated the significant changes in expression levels involved in inflammation genes upon treatment of His-induced NECs with AS-IV. Our findings indicated that AS-IV inhibited His-evoked inflammatory cytokines secretion and MUC5AC overproduction in NECs, which were partly mediated by regulation of inflammation-related genes. Therefore, our findings provided a scientific basis for the development of AS-IV as an effective agent for clinical therapeutic strategy in the treatment of AR.
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Affiliation(s)
- Jie Guo
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Luoyang Central Hospital of Zhengzhou University, Luoyang Henan, China
| | - Shuai Xu
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Luoyang Central Hospital of Zhengzhou University, Luoyang Henan, China
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32
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Smyth T, Georas SN. Effects of ozone and particulate matter on airway epithelial barrier structure and function: a review of in vitro and in vivo studies. Inhal Toxicol 2021; 33:177-192. [PMID: 34346824 DOI: 10.1080/08958378.2021.1956021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The airway epithelium represents a crucial line of defense against the spread of inhaled pathogens. As the epithelium is the first part of the body to be exposed to the inhaled environment, it must act as both a barrier to and sentinel against any inhaled agents. Despite its vital role in limiting the spread of inhaled pathogens, the airway epithelium is also regularly exposed to air pollutants which disrupt its normal function. Here we review the current understanding of the structure and composition of the airway epithelial barrier, as well as the impact of inhaled pollutants, including the reactive gas ozone and particulate matter, on epithelial function. We discuss the current in vitro, rodent model, and human exposure findings surrounding the impact of various inhaled pollutants on epithelial barrier function, mucus production, and mucociliary clearance. Detailed information on how inhaled pollutants impact epithelial structure and function will further our understanding of the adverse health effects of air pollution exposure.
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Affiliation(s)
- Timothy Smyth
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Steve N Georas
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA.,Department of Medicine, University of Rochester Medical Center, Rochester, NY, USA
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33
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Carroll EL, Bailo M, Reihill JA, Crilly A, Lockhart JC, Litherland GJ, Lundy FT, McGarvey LP, Hollywood MA, Martin SL. Trypsin-Like Proteases and Their Role in Muco-Obstructive Lung Diseases. Int J Mol Sci 2021; 22:5817. [PMID: 34072295 PMCID: PMC8199346 DOI: 10.3390/ijms22115817] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/20/2022] Open
Abstract
Trypsin-like proteases (TLPs) belong to a family of serine enzymes with primary substrate specificities for the basic residues, lysine and arginine, in the P1 position. Whilst initially perceived as soluble enzymes that are extracellularly secreted, a number of novel TLPs that are anchored in the cell membrane have since been discovered. Muco-obstructive lung diseases (MucOLDs) are characterised by the accumulation of hyper-concentrated mucus in the small airways, leading to persistent inflammation, infection and dysregulated protease activity. Although neutrophilic serine proteases, particularly neutrophil elastase, have been implicated in the propagation of inflammation and local tissue destruction, it is likely that the serine TLPs also contribute to various disease-relevant processes given the roles that a number of these enzymes play in the activation of both the epithelial sodium channel (ENaC) and protease-activated receptor 2 (PAR2). More recently, significant attention has focused on the activation of viruses such as SARS-CoV-2 by host TLPs. The purpose of this review was to highlight key TLPs linked to the activation of ENaC and PAR2 and their association with airway dehydration and inflammatory signalling pathways, respectively. The role of TLPs in viral infectivity will also be discussed in the context of the inhibition of TLP activities and the potential of these proteases as therapeutic targets.
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Affiliation(s)
- Emma L. Carroll
- School of Pharmacy, Queen’s University, Belfast BT9 7BL, UK; (E.L.C.); (J.A.R.)
| | - Mariarca Bailo
- Institute for Biomedical and Environmental Health Research, School of Health and Life Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (M.B.); (A.C.); (J.C.L.); (G.J.L.)
| | - James A. Reihill
- School of Pharmacy, Queen’s University, Belfast BT9 7BL, UK; (E.L.C.); (J.A.R.)
| | - Anne Crilly
- Institute for Biomedical and Environmental Health Research, School of Health and Life Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (M.B.); (A.C.); (J.C.L.); (G.J.L.)
| | - John C. Lockhart
- Institute for Biomedical and Environmental Health Research, School of Health and Life Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (M.B.); (A.C.); (J.C.L.); (G.J.L.)
| | - Gary J. Litherland
- Institute for Biomedical and Environmental Health Research, School of Health and Life Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (M.B.); (A.C.); (J.C.L.); (G.J.L.)
| | - Fionnuala T. Lundy
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University, Belfast BT9 7BL, UK; (F.T.L.); (L.P.M.)
| | - Lorcan P. McGarvey
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University, Belfast BT9 7BL, UK; (F.T.L.); (L.P.M.)
| | - Mark A. Hollywood
- Smooth Muscle Research Centre, Dundalk Institute of Technology, A91 HRK2 Dundalk, Ireland;
| | - S. Lorraine Martin
- School of Pharmacy, Queen’s University, Belfast BT9 7BL, UK; (E.L.C.); (J.A.R.)
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34
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Planté-Bordeneuve T, Pilette C, Froidure A. The Epithelial-Immune Crosstalk in Pulmonary Fibrosis. Front Immunol 2021; 12:631235. [PMID: 34093523 PMCID: PMC8170303 DOI: 10.3389/fimmu.2021.631235] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 05/04/2021] [Indexed: 12/12/2022] Open
Abstract
Interactions between the lung epithelium and the immune system involve a tight regulation to prevent inappropriate reactions and have been connected to several pulmonary diseases. Although the distal lung epithelium and local immunity have been implicated in the pathogenesis and disease course of idiopathic pulmonary fibrosis (IPF), consequences of their abnormal interplay remain less well known. Recent data suggests a two-way process, as illustrated by the influence of epithelial-derived periplakin on the immune landscape or the effect of macrophage-derived IL-17B on epithelial cells. Additionally, damage associated molecular patterns (DAMPs), released by damaged or dying (epithelial) cells, are augmented in IPF. Next to “sterile inflammation”, pathogen-associated molecular patterns (PAMPs) are increased in IPF and have been linked with lung fibrosis, while outer membrane vesicles from bacteria are able to influence epithelial-macrophage crosstalk. Finally, the advent of high-throughput technologies such as microbiome-sequencing has allowed for the identification of a disease-specific microbial environment. In this review, we propose to discuss how the interplays between the altered distal airway and alveolar epithelium, the lung microbiome and immune cells may shape a pro-fibrotic environment. More specifically, it will highlight DAMPs-PAMPs pathways and the specificities of the IPF lung microbiome while discussing recent elements suggesting abnormal mucosal immunity in pulmonary fibrosis.
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Affiliation(s)
- Thomas Planté-Bordeneuve
- Pôle de pneumologie, O.R.L. et dermatologie, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Bruxelles, Belgium
| | - Charles Pilette
- Pôle de pneumologie, O.R.L. et dermatologie, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Bruxelles, Belgium.,Service de pneumologie, Cliniques universitaires Saint-Luc, Bruxelles, Belgium
| | - Antoine Froidure
- Pôle de pneumologie, O.R.L. et dermatologie, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Bruxelles, Belgium.,Service de pneumologie, Cliniques universitaires Saint-Luc, Bruxelles, Belgium
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35
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Sponchiado M, Liao YS, Atanasova KR, Collins EN, Schurmann V, Bravo L, Reznikov LR. Overexpression of Substance P in pig airways increases MUC5AC through an NF-kβ pathway. Physiol Rep 2021; 9:e14749. [PMID: 33580593 PMCID: PMC7881348 DOI: 10.14814/phy2.14749] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 01/13/2021] [Indexed: 01/04/2023] Open
Abstract
Substance P (SP) is a tachykinin that regulates airway mucous secretion in both health and disease. Our study aimed to determine whether overexpression of SP without pre‐existing inflammation was sufficient to induce changes in mucin secretion and transport in small airways. Utilizing porcine precision‐cut lung slices, we measured the impact of AAV‐mediated overexpression of SP on airway physiology ex vivo. Immunofluorescence signal intensity for MUC5AC was significantly increased in SP‐overexpressed precision‐cut lung slices compared to GFP controls. No difference in MUC5B signal intensity between treatments was detected. SP‐overexpressed precision‐cut lung slices also exhibited decreased IL10 mRNA, an important inhibitor of mucous cell metaplasia. Overt deficits in mucociliary transport were not noted, though a trend for decreased mean transport speed was detected in methacholine‐challenged airways overexpressing SP compared to GFP controls. Pharmacologic inhibition of the NF‐kβ pathway abrogated the effects of overexpression of SP on both MUC5AC and IL10. Collectively, these data suggest that overexpression of SP in the absence of existing inflammation increases MUC5AC via activation of the NF‐kβ pathway. Thus, these data further highlight SP as a key driver of abnormal mucous secretion and underscore NF‐kβ signaling as a pathway of potential therapeutic intervention.
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Affiliation(s)
- Mariana Sponchiado
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Yan-Shin Liao
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Kalina R Atanasova
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA.,Department of Medicinal Chemistry and Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, USA
| | - Emily N Collins
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Veronica Schurmann
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Laura Bravo
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Leah R Reznikov
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
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36
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Adivitiya, Kaushik MS, Chakraborty S, Veleri S, Kateriya S. Mucociliary Respiratory Epithelium Integrity in Molecular Defense and Susceptibility to Pulmonary Viral Infections. BIOLOGY 2021; 10:95. [PMID: 33572760 PMCID: PMC7911113 DOI: 10.3390/biology10020095] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 01/08/2023]
Abstract
Mucociliary defense, mediated by the ciliated and goblet cells, is fundamental to respiratory fitness. The concerted action of ciliary movement on the respiratory epithelial surface and the pathogen entrapment function of mucus help to maintain healthy airways. Consequently, genetic or acquired defects in lung defense elicit respiratory diseases and secondary microbial infections that inflict damage on pulmonary function and may even be fatal. Individuals living with chronic and acute respiratory diseases are more susceptible to develop severe coronavirus disease-19 (COVID-19) illness and hence should be proficiently managed. In light of the prevailing pandemic, we review the current understanding of the respiratory system and its molecular components with a major focus on the pathophysiology arising due to collapsed respiratory epithelium integrity such as abnormal ciliary movement, cilia loss and dysfunction, ciliated cell destruction, and changes in mucus rheology. The review includes protein interaction networks of coronavirus infection-manifested implications on the molecular machinery that regulates mucociliary clearance. We also provide an insight into the alteration of the transcriptional networks of genes in the nasopharynx associated with the mucociliary clearance apparatus in humans upon infection by severe acute respiratory syndrome coronavirus-2.
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Affiliation(s)
- Adivitiya
- Laboratory of Optobiology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India; (A.); (M.S.K.); (S.C.)
| | - Manish Singh Kaushik
- Laboratory of Optobiology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India; (A.); (M.S.K.); (S.C.)
| | - Soura Chakraborty
- Laboratory of Optobiology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India; (A.); (M.S.K.); (S.C.)
| | - Shobi Veleri
- Drug Safety Division, ICMR-National Institute of Nutrition, Hyderabad 500007, India;
| | - Suneel Kateriya
- Laboratory of Optobiology, School of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, India; (A.); (M.S.K.); (S.C.)
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37
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Khan MA, Khan ZA, Charles M, Pratap P, Naeem A, Siddiqui Z, Naqvi N, Srivastava S. Cytokine Storm and Mucus Hypersecretion in COVID-19: Review of Mechanisms. J Inflamm Res 2021; 14:175-189. [PMID: 33519225 PMCID: PMC7838037 DOI: 10.2147/jir.s271292] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 12/08/2020] [Indexed: 12/18/2022] Open
Abstract
Mucus is an integral part of the respiratory physiology. It protects the respiratory tract by acting as a physical barrier against inhaled particles and microbes. Excessive inflammation in conditions such as COVID-19 can result in over-production of mucus which obstructs the airway. Build-up of mucus can also contribute to recurrent airway infection, causing further obstruction. This article summarizes the current understanding and knowledge of respiratory mucus production and proposes the role of cytokine storm in inducing sudden mucus hypersecretion in COVID-19. Based on these cascades, the active constituents that inhibit or activate several potential targets are outlined for further research. These may be explored for the discovery and design of drugs to combat cytokine storm and its ensuing complications.
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Affiliation(s)
- Mohsin Ali Khan
- Reseach & Development Department, Era's Lucknow Medical College & Hospital, Lucknow, Uttar Pradesh, India
| | - Zaw Ali Khan
- Reseach & Development Department, Era's Lucknow Medical College & Hospital, Lucknow, Uttar Pradesh, India
| | - Mark Charles
- Metabolic Research Unit, Era's Lucknow Medical College & Hospital, Lucknow, Uttar Pradesh, India
| | - Pushpendra Pratap
- Metabolic Research Unit, Era's Lucknow Medical College & Hospital, Lucknow, Uttar Pradesh, India
| | - Abdul Naeem
- Metabolic Research Unit, Era's Lucknow Medical College & Hospital, Lucknow, Uttar Pradesh, India
| | - Zainab Siddiqui
- Department of Pathology, Era's Lucknow Medical College & Hospital, Lucknow, Uttar Pradesh, India
| | - Nigar Naqvi
- Department of Nutrition, Era's Lucknow Medical College & Hospital, Lucknow, Uttar Pradesh, India
| | - Shikha Srivastava
- Department of Nutrition, Era's Lucknow Medical College & Hospital, Lucknow, Uttar Pradesh, India
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38
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Hajjo R, Sabbah DA, Bardaweel SK. Chemocentric Informatics Analysis: Dexamethasone Versus Combination Therapy for COVID-19. ACS OMEGA 2020; 5:29765-29779. [PMID: 33251412 PMCID: PMC7689662 DOI: 10.1021/acsomega.0c03597] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/03/2020] [Indexed: 05/08/2023]
Abstract
COVID-19 is a biphasic infectious disease with no approved vaccine or pharmacotherapy. The first drug that has shown promise in reducing COVID-19 mortality in severely-ill patients is dexamethasone, a cheap, well-known anti-inflammatory glucocorticoid, approved for the treatment of inflammatory conditions including respiratory diseases such as asthma and tuberculosis. However, about 80% of COVID-19 patients requiring oxygenation, and about 67% of patients on ventilators, are not responsive to dexamethasone therapy mainly. Additionally, using higher doses of dexamethasone for prolonged periods of time can lead to severe side effects and some patients may develop corticosteroid resistance leading to treatment failure. In order to increase the therapeutic efficacy of dexamethasone in COVID-19 patients, while minimizing dexamethasone-related complications that could result from using higher doses of the drug, we applied a chemocentric informatics approach to identify combination therapies. Our results indicated that combining dexamethasone with fast long-acting beta-2 adrenergic agonists (LABAs), such as formoterol and salmeterol, can ease respiratory symptoms hastily, until dexamethasone's anti-inflammatory and immunosuppressant effects kick in. Our studies demonstrated that LABAs and dexamethasone (or other glucocorticoids) exert synergistic effects that will augment both anti-inflammatory and fibronectin-mediated anticoagulant effects. We also propose other alternatives to LABAs that are supported by sound systems biology evidence, such as nitric oxide. Other drugs such as sevoflurane and treprostinil interact with the SARS-CoV-2 interactome and deserve further exploration. Moreover, our chemocentric informatics approach provides systems biology evidence that combination therapies for COVID-19 will have higher chances of perturbing the SARS-CoV-2 human interactome, which may negatively impact COVID-19 disease pathways.
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Affiliation(s)
- Rima Hajjo
- Department
of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah
University of Jordan, P.O. Box 130, Amman 11733, Jordan
| | - Dima A. Sabbah
- Department
of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah
University of Jordan, P.O. Box 130, Amman 11733, Jordan
| | - Sanaa K. Bardaweel
- Department
of Pharmaceutical Sciences, School of Pharmacy, University of Jordan, Amman 11942, Jordan
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39
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Montgomery MT, Sajuthi SP, Cho SH, Everman JL, Rios CL, Goldfarbmuren KC, Jackson ND, Saef B, Cromie M, Eng C, Medina V, Elhawary JR, Oh SS, Rodriguez-Santana J, Vladar EK, Burchard EG, Seibold MA. Genome-Wide Analysis Reveals Mucociliary Remodeling of the Nasal Airway Epithelium Induced by Urban PM 2.5. Am J Respir Cell Mol Biol 2020; 63:172-184. [PMID: 32275839 DOI: 10.1165/rcmb.2019-0454oc] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Air pollution particulate matter <2.5 μm (PM2.5) exposure is associated with poor respiratory outcomes. Mechanisms underlying PM2.5-induced lung pathobiology are poorly understood but likely involve cellular and molecular changes to the airway epithelium. We extracted and chemically characterized the organic and water-soluble components of air pollution PM2.5 samples, then determined the whole transcriptome response of human nasal mucociliary airway epithelial cultures to a dose series of PM2.5 extracts. We found that PM2.5 organic extract (OE), but not water-soluble extract, elicited a potent, dose-dependent transcriptomic response from the mucociliary epithelium. Exposure to a moderate OE dose modified the expression of 424 genes, including activation of aryl hydrocarbon receptor signaling and an IL-1 inflammatory program. We generated an OE-response gene network defined by eight functional enrichment groups, which exhibited high connectivity through CYP1A1, IL1A, and IL1B. This OE exposure also robustly activated a mucus secretory expression program (>100 genes), which included transcriptional drivers of mucus metaplasia (SPDEF and FOXA3). Exposure to a higher OE dose modified the expression of 1,240 genes and further exacerbated expression responses observed at the moderate dose, including the mucus secretory program. Moreover, the higher OE dose significantly increased the MUC5AC/MUC5B gel-forming mucin expression ratio and strongly downregulated ciliated cell expression programs, including key ciliating cell transcription factors (e.g., FOXJ1 and MCIDAS). Chronic OE stimulation induced mucus metaplasia-like remodeling characterized by increases in MUC5AC+ secretory cells and MUC5AC mucus secretions. This epithelial remodeling may underlie poor respiratory outcomes associated with high PM2.5 exposure.
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Affiliation(s)
| | | | - Seung-Hyun Cho
- RTI International, Research Triangle Park, North Carolina
| | | | | | | | | | | | | | | | - Vivian Medina
- Centro de Neumología Pediátrica, San Juan, Puerto Rico; and
| | | | | | | | - Eszter K Vladar
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine and.,Department of Cell and Developmental Biology, University of Colorado School of Medicine, Aurora, Colorado
| | - Esteban G Burchard
- Department of Medicine and.,Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, California
| | - Max A Seibold
- Center for Genes, Environment, and Health, and.,Department of Pediatrics, National Jewish Health, Denver, Colorado.,Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine and
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40
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Li H, Lin L, Chong L, Gu S, Wen S, Yu G, Hu X, Dong L, Zhang H, Li C. Time-resolved mRNA and miRNA expression profiling reveals crucial coregulation of molecular pathways involved in epithelial-pneumococcal interactions. Immunol Cell Biol 2020; 98:726-742. [PMID: 32592597 PMCID: PMC7586809 DOI: 10.1111/imcb.12371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 05/29/2020] [Accepted: 06/23/2020] [Indexed: 12/31/2022]
Abstract
Streptococcus pneumoniae is a major causative agent of pneumonia worldwide and its complex interaction with the lung epithelium has not been thoroughly characterized. In this study, we exploited both RNA‐sequencing and microRNA (miRNA)‐sequencing approaches to monitor the transcriptional changes in human lung alveolar epithelial cells infected by S. pneumoniae in a time‐resolved manner. A total of 1330 differentially expressed (DE) genes and 45 DE miRNAs were identified in all comparisons during the infection process. Clustering analysis showed that all DE genes were grouped into six clusters, several of which were primarily involved in inflammatory or immune responses. In addition, target gene enrichment analyses identified 11 transcription factors that were predicted to link at least one of four clusters, revealing transcriptional coregulation of multiple processes or pathways by common transcription factors. Notably, pharmacological treatment suggested that phosphorylation of p65 is important for optimal transcriptional regulation of target genes in epithelial cells exposed to pathogens. Furthermore, network‐based clustering analysis separated the DE genes negatively regulated by DE miRNAs into two functional modules (M1 and M2), with an enrichment in immune responses and apoptotic signaling pathways for M1. Integrated network analyses of potential regulatory interactions in M1 revealed that multiple DE genes related to immunity and apoptosis were regulated by multiple miRNAs, indicating the coordinated regulation of multiple genes by multiple miRNAs. In conclusion, time‐series expression profiling of messenger RNA and miRNA provides a wealth of information for global transcriptional changes, and offers comprehensive insight into the molecular mechanisms underlying host–pathogen interactions.
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Affiliation(s)
- Haiyan Li
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Li Lin
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lei Chong
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shuge Gu
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shunhang Wen
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Gang Yu
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaoguang Hu
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lin Dong
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hailin Zhang
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Changchong Li
- Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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41
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Chung YW, Cha J, Han S, Chen Y, Gucek M, Cho HJ, Nakahira K, Choi AMK, Ryu JH, Yoon JH. Apolipoprotein E and Periostin Are Potential Biomarkers of Nasal Mucosal Inflammation. A Parallel Approach of In Vitro and In Vivo Secretomes. Am J Respir Cell Mol Biol 2020; 62:23-34. [PMID: 31194918 DOI: 10.1165/rcmb.2018-0248oc] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
No previously suggested biomarkers of nasal mucosal inflammation have been practically applied in clinical fields, and nasal epithelium-derived secreted proteins as biomarkers have not specifically been investigated. The goal of this study was to identify secreted proteins that dynamically change during the differentiation from basal cells to fully differentiated cells and examine whether nasal epithelium-derived proteins can be used as biomarkers of nasal mucosal inflammation, such as chronic rhinosinusitis. To achieve this goal, we analyzed two secretomes using the isobaric tag for relative and absolute quantification technique. From in vitro secretomes, we identified the proteins altered in apical secretions of primary human nasal epithelial cells according to the degree of differentiation; from in vivo secretomes, we identified the increased proteins in nasal lavage fluids obtained from patients 2 weeks after endoscopic sinus surgery for chronic sinusitis. We then used a parallel approach to identify specific biomarkers of nasal mucosal inflammation; first, we selected apolipoprotein E as a nasal epithelial cell-derived biomarker through screening proteins that were upregulated in both in vitro and in vivo secretomes, and verified highly secreted apolipoprotein E in nasal lavage fluids of the patients by Western blotting. Next, we selected periostin as an inflammatory mediator-inducible biomarker from in vivo secretomes, the secretion of which was not induced under in vitro culture conditions. We demonstrated that those two nasal epithelium-derived proteins are possible biomarkers of nasal mucosal inflammation.
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Affiliation(s)
- Youn Wook Chung
- The Airway Mucus Institute.,Global Research Laboratory for Allergic Airway Disease.,Severance Biomedical Science Institute
| | - Jimin Cha
- Severance Biomedical Science Institute.,Brain Korea 21 PLUS Project for Medical Science, and
| | - Seunghan Han
- Severance Biomedical Science Institute.,Brain Korea 21 PLUS Project for Medical Science, and
| | - Yong Chen
- Proteomics Core Facility, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland; and
| | - Marjan Gucek
- Proteomics Core Facility, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland; and
| | - Hyung-Ju Cho
- The Airway Mucus Institute.,Global Research Laboratory for Allergic Airway Disease.,Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea
| | - Kiichi Nakahira
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York
| | - Augustine M K Choi
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York
| | - Ji-Hwan Ryu
- Severance Biomedical Science Institute.,Brain Korea 21 PLUS Project for Medical Science, and
| | - Joo-Heon Yoon
- The Airway Mucus Institute.,Global Research Laboratory for Allergic Airway Disease.,Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea
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42
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Liu Y, Liu F, Liang W, Zhu L, Lantz RC, Zhu J, Chen Y. Arsenic represses airway epithelial mucin expression by affecting retinoic acid signaling pathway. Toxicol Appl Pharmacol 2020; 394:114959. [PMID: 32201329 PMCID: PMC10510759 DOI: 10.1016/j.taap.2020.114959] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/14/2020] [Accepted: 03/18/2020] [Indexed: 12/31/2022]
Abstract
Arsenic is a ubiquitous environmental toxicant, found in high concentrations worldwide. Although abundant research has dealt with arsenic-induced cancers, studies on mechanisms of non-malignant lung diseases have not been complete. In addition, decades of research have mostly concentrated on high-dose arsenic exposure, which has very limited use in modeling the biological effects of today's low-dose exposures. Indeed, accumulated evidence has shown that low-dose arsenic exposure (i.e. ≤100 ppb) may also alter lung homeostasis by causing host susceptibility to viral infection. However, the underlying mechanism of this alteration is unknown. In this study, we found that low-dose sodium arsenite (As (III)) repressed major airway mucins-MUC5AC and MUC5B at both mRNA and protein levels. We further demonstrated that this repression was not caused by cellular toxicity or mediated by the reduction of a common mucin-inducing pathway-EGFR. Other established mucin activators- dsRNA, IL1β or IL17 were not able to override As (III)-induced mucin repression. Interestingly, the suppressing effect of As (III) appeared to be partially reversible, and supplementation of all trans retinoic acid (t-RA) doses dependently restored mucin gene expression. Further analyses indicated that As (III) treatment significantly reduced the protein level of retinoic acid receptors (RARα, γ and RXRα) as well as RARE promoter reporter activity. Therefore, our study fills in an important knowledge gap in the field of low-dose arsenic exposure. The interference of RA signaling, and mucin gene expression may be important pathogenic factors in low-dose arsenic induced lung toxicity.
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Affiliation(s)
- Yuchen Liu
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China; Department of Pharmacology and Toxicology, School of Pharmacy, University of Arizona, Tucson, AZ 85724, United States of America
| | - Fangwei Liu
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Arizona, Tucson, AZ 85724, United States of America
| | - Weifeng Liang
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China; Department of Pharmacology and Toxicology, School of Pharmacy, University of Arizona, Tucson, AZ 85724, United States of America
| | - Lingxiang Zhu
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Arizona, Tucson, AZ 85724, United States of America
| | - R Clark Lantz
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724, United States of America
| | - Jiapeng Zhu
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China.
| | - Yin Chen
- Department of Pharmacology and Toxicology, School of Pharmacy, University of Arizona, Tucson, AZ 85724, United States of America; Asthma & Airway Disease Research Center, University of Arizona, Tucson, AZ 85724, United States of America.
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43
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Laulajainen-Hongisto A, Toppila-Salmi SK, Luukkainen A, Kern R. Airway Epithelial Dynamics in Allergy and Related Chronic Inflammatory Airway Diseases. Front Cell Dev Biol 2020; 8:204. [PMID: 32292784 PMCID: PMC7118214 DOI: 10.3389/fcell.2020.00204] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/10/2020] [Indexed: 12/12/2022] Open
Abstract
Allergic rhinitis, chronic rhinosinusitis, and asthma are highly prevalent, multifactorial chronic airway diseases. Several environmental and genetic factors affect airway epithelial dynamics leading to activation of inflammatory mechanisms in the airways. This review links environmental factors to host epithelial immunity in airway diseases. Understanding altered homeostasis of the airway epithelium might provide important targets for diagnostics and therapy of chronic airway diseases.
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Affiliation(s)
- Anu Laulajainen-Hongisto
- Department of Otorhinolaryngology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland.,Laboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
| | - Sanna Katriina Toppila-Salmi
- Haartman Institute, Medicum, University of Helsinki, Helsinki, Finland.,Skin and Allergy Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Annika Luukkainen
- Haartman Institute, Medicum, University of Helsinki, Helsinki, Finland
| | - Robert Kern
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
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44
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Barrios J, Kho AT, Aven L, Mitchel JA, Park JA, Randell SH, Miller LA, Tantisira KG, Ai X. Pulmonary Neuroendocrine Cells Secrete γ-Aminobutyric Acid to Induce Goblet Cell Hyperplasia in Primate Models. Am J Respir Cell Mol Biol 2020; 60:687-694. [PMID: 30571139 DOI: 10.1165/rcmb.2018-0179oc] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Mucus overproduction is a major contributor to morbidity and mortality in asthma. Mucus overproduction is induced by orchestrated actions of multiple factors that include inflammatory cytokines and γ-aminobutyric acid (GABA). GABA is produced only by pulmonary neuroendocrine cells (PNECs) in the mouse lung. Recent studies in a neonatal mouse model of allergic inflammation have shown that PNECs play an essential role in mucus overproduction by GABA hypersecretion. Whether PNECs mediate dysregulated GABA signaling for mucus overproduction in asthma is unknown. In this study, we characterized the cellular source of GABA in the lungs of nonhuman primates and humans and assessed GABA secretion and signaling in primate disease models. We found that like in mice, PNECs were the major source of GABA in primate lungs. In addition, an infant nonhuman primate model of asthma exhibited an increase in GABA secretion. Furthermore, subjects with asthma had elevated levels of expression of a subset of GABA type α (GABAα) and type β (GABAβ) receptors in airway epithelium compared with those of healthy control subjects. Last, employing a normal human bronchial epithelial cell model of preinduced mucus overproduction, we showed pharmaceutical blockade of GABAα and GABAβ receptor signaling reversed the effect of IL-13 on MUC5AC gene expression and goblet cell proliferation. Together, our data demonstrate an evolutionarily conserved intraepithelial GABA signaling that, in concert with IL-13, plays an essential role in mucus overproduction. Our findings may offer new strategies to ameliorate mucus overproduction in patients with asthma by targeting PNEC secretion and GABA signaling.
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Affiliation(s)
- Juliana Barrios
- 1 The Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Alvin T Kho
- 2 The Channing Division of Network Medicine, and
| | - Linh Aven
- 1 The Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Jennifer A Mitchel
- 3 Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Jin-Ah Park
- 3 Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Scott H Randell
- 4 Department of Cell Biology and Physiology, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and
| | - Lisa A Miller
- 5 Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, California
| | | | - Xingbin Ai
- 6 Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
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45
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WNT/RYK signaling restricts goblet cell differentiation during lung development and repair. Proc Natl Acad Sci U S A 2019; 116:25697-25706. [PMID: 31776260 DOI: 10.1073/pnas.1911071116] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Goblet cell metaplasia and mucus hypersecretion are observed in many pulmonary diseases, including asthma, chronic obstructive pulmonary disease (COPD), and cystic fibrosis. However, the regulation of goblet cell differentiation remains unclear. Here, we identify a regulator of this process in an N-ethyl-N-nitrosourea (ENU) screen for modulators of postnatal lung development; Ryk mutant mice exhibit lung inflammation, goblet cell hyperplasia, and mucus hypersecretion. RYK functions as a WNT coreceptor, and, in the developing lung, we observed high RYK expression in airway epithelial cells and moderate expression in mesenchymal cells as well as in alveolar epithelial cells. From transcriptomic analyses and follow-up studies, we found decreased WNT/β-catenin signaling activity in the mutant lung epithelium. Epithelial-specific Ryk deletion causes goblet cell hyperplasia and mucus hypersecretion but not inflammation, while club cell-specific Ryk deletion in adult stages leads to goblet cell hyperplasia and mucus hypersecretion during regeneration. We also found that the airway epithelium of COPD patients often displays goblet cell metaplastic foci, as well as reduced RYK expression. Altogether, our findings reveal that RYK plays important roles in maintaining the balance between airway epithelial cell populations during development and repair, and that defects in RYK expression or function may contribute to the pathogenesis of human lung diseases.
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46
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Al-Dury S, Wahlström A, Panzitt K, Thorell A, Ståhlman M, Trauner M, Fickert P, Bäckhed F, Fändriks L, Wagner M, Marschall HU. Obeticholic acid may increase the risk of gallstone formation in susceptible patients. J Hepatol 2019; 71:986-991. [PMID: 31254596 DOI: 10.1016/j.jhep.2019.06.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/05/2019] [Accepted: 06/13/2019] [Indexed: 12/04/2022]
Abstract
BACKGROUND & AIMS The nuclear farnesoid X receptor (FXR) agonist obeticholic acid (OCA) has been developed for the treatment of liver diseases. We aimed to determine whether OCA treatment increases the risk of gallstone formation. METHODS Twenty patients awaiting laparoscopic cholecystectomy were randomized to treatment with OCA (25 mg/day) or placebo for 3 weeks until the day before surgery. Serum bile acids (BAs), the BA synthesis marker C4 (7α-hydroxy-4-cholesten-3-one), and fibroblast growth factor 19 (FGF19) were measured before and after treatment. During surgery, biopsies from the liver and the whole bile-filled gallbladder were collected for analyses of gene expression, biliary lipids and FGF19. RESULTS In serum, OCA increased FGF19 (from 95.0 ± 8.5 to 234.4 ± 35.6 ng/L) and decreased C4 (from 31.4 ± 22.8 to 2.8 ± 4.0 nmol/L) and endogenous BAs (from 1,312.2 ± 236.2 to 517.7 ± 178.9 nmol/L; all p <0.05). At surgery, BAs in gallbladder bile were lower in patients that received OCA than in controls (OCA, 77.9 ± 53.6 mmol/L; placebo, 196.4 ± 99.3 mmol/L; p <0.01), resulting in a higher cholesterol saturation index (OCA, 2.8 ± 1.1; placebo, 1.8 ± 0.8; p <0.05). In addition, hydrophobic OCA conjugates accounted for 13.6 ± 5.0% of gallbladder BAs after OCA treatment, resulting in a higher hydrophobicity index (OCA, 0.43 ± 0.09; placebo, 0.34 ± 0.07, p <0.05). Gallbladder FGF19 levels were 3-fold higher in OCA patients than in controls (OCA, 40.3 ± 16.5 ng/L; placebo, 13.5 ± 13.1 ng/ml; p <0.005). Gene expression analysis indicated that FGF19 mainly originated from the gallbladder epithelium. CONCLUSIONS Our results show for the first time an enrichment of FGF19 in human bile after OCA treatment. In accordance with its murine homolog FGF15, FGF19 might trigger relaxation and filling of the gallbladder which, in combination with increased cholesterol saturation and BA hydrophobicity, would enhance the risk of gallstone development. LAY SUMMARY Obeticholic acid increased human gallbladder cholesterol saturation and bile acid hydrophobicity, both decreasing cholesterol solubility in bile. Together with increased hepatobiliary levels of fibroblast growth factor 19, our findings suggest that pharmacological activation of the farnesoid X receptor increases the risk of gallstone formation. Clinical trial number: NCT01625026.
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Affiliation(s)
- Samer Al-Dury
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Annika Wahlström
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Katrin Panzitt
- Department of Gastroenterology and Hepatology, Medical University of Graz, Austria
| | - Anders Thorell
- Karolinska Institutet, Department of Clinical Science, Danderyd Hospital and Department of Surgery, Ersta Hospital, Stockholm, Sweden
| | - Marcus Ståhlman
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Michael Trauner
- Division of Gastroenterology and Hepatology, Medical University of Vienna, Austria
| | - Peter Fickert
- Department of Gastroenterology and Hepatology, Medical University of Graz, Austria
| | - Fredrik Bäckhed
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Lars Fändriks
- Department of Gastrosurgical Research and Education, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Martin Wagner
- Department of Gastroenterology and Hepatology, Medical University of Graz, Austria
| | - Hanns-Ulrich Marschall
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Sahlgrenska Academy, University of Gothenburg, Sweden.
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47
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Powell J, Garnett JP, Mather MW, Cooles FAH, Nelson A, Verdon B, Scott J, Jiwa K, Ruchaud-Sparagano MH, Cummings SP, Perry JD, Wright SE, Wilson JA, Pearson J, Ward C, Simpson AJ. Excess Mucin Impairs Subglottic Epithelial Host Defense in Mechanically Ventilated Patients. Am J Respir Crit Care Med 2019; 198:340-349. [PMID: 29425465 DOI: 10.1164/rccm.201709-1819oc] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Aspiration of infective subglottic secretions causes ventilator-associated pneumonia (VAP) in mechanically ventilated patients. Mechanisms underlying subglottic colonization in critical illness have not been defined, limiting strategies for targeted prevention of VAP. OBJECTIVES To characterize subglottic host defense dysfunction in mechanically ventilated patients in the ICU; to determine whether subglottic mucin contributes to neutrophil phagocytic impairment and bacterial growth. METHODS Prospective subglottic sampling in mechanically ventilated patients (intubated for four or more days), and newly intubated control patients (intubated for less than 30 min); isolation and culture of primary subglottic epithelial cells from control patients; laboratory analysis of host innate immune defenses. MEASUREMENTS AND MAIN RESULTS Twenty-four patients in the ICU and 27 newly intubated control patients were studied. Subglottic ICU samples had significantly reduced microbiological diversity and contained potential respiratory pathogens. The subglottic microenvironment in the ICU was characterized by neutrophilic inflammation, significantly increased proinflammatory cytokines and neutrophil proteases, and altered physical properties of subglottic secretions, including accumulation of mucins. Subglottic mucin from ICU patients impaired the capacity of neutrophils to phagocytose and kill bacteria. Phagocytic impairment was reversible on treatment with a mucolytic agent. Subglottic mucus promoted growth and invasion of bacterial pathogens in a novel air-liquid interface model of primary human subglottic epithelium. CONCLUSIONS Mechanical ventilation in the ICU is characterized by substantial mucin secretion and neutrophilic inflammation. Mucin impairs neutrophil function and promotes bacterial growth. Mucolytic agents reverse mucin-mediated neutrophil dysfunction. Enhanced mucus disruption and removal has potential to augment preventive benefits of subglottic drainage.
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Affiliation(s)
| | | | | | | | | | - Bernard Verdon
- 3 Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
| | | | | | | | - Stephen P Cummings
- 4 School of Science, Engineering and Design, Teesside University, Middlesbrough, United Kingdom; and
| | | | | | - Janet A Wilson
- 7 Institute of Health and Society, Newcastle University, Newcastle upon Tyne, United Kingdom.,8 Department of Otolaryngology-Head and Neck Surgery, Freeman Hospital, Newcastle upon Tyne Hospitals National Health Service (NHS) Foundation Trust, Newcastle upon Tyne, United Kingdom
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48
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The Possible Pathogenesis of Idiopathic Pulmonary Fibrosis considering MUC5B. BIOMED RESEARCH INTERNATIONAL 2019; 2019:9712464. [PMID: 31309122 PMCID: PMC6594326 DOI: 10.1155/2019/9712464] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 04/18/2019] [Accepted: 05/08/2019] [Indexed: 12/27/2022]
Abstract
Background Overexpression of the MUC5B protein is associated with idiopathic pulmonary fibrosis (IPF), but little information is available regarding the pathogenic effects and regulatory mechanisms of overexpressed MUC5B in IPF. Main Body The overexpression of MUC5B in terminal bronchi and honeycomb cysts produces mucosal host defensive dysfunction in the distal airway which may play an important role in the development of IPF. This review addresses the possible association of overexpression of MUC5B, with MUC5B promoter polymorphism, MUC5B gene epigenetic changes, effects of some transcriptional factors, and inflammatory mediators in IPF. In addition, the associated signaling pathways which may influence the expression of MUC5B are also discussed. Conclusion This work has important implications for further exploration of the mechanisms of overexpression of MUC5B in IPF, and future personalized treatment.
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49
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Lorenzo-Salazar JM, Ma SF, Jou J, Hou PC, Guillen-Guio B, Allen RJ, Jenkins RG, Wain LV, Oldham JM, Noth I, Flores C. Novel idiopathic pulmonary fibrosis susceptibility variants revealed by deep sequencing. ERJ Open Res 2019; 5:00071-2019. [PMID: 31205927 PMCID: PMC6556557 DOI: 10.1183/23120541.00071-2019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/07/2019] [Indexed: 12/13/2022] Open
Abstract
Background Specific common and rare single nucleotide variants (SNVs) increase the likelihood of developing sporadic idiopathic pulmonary fibrosis (IPF). We performed target-enriched sequencing on three loci previously identified by a genome-wide association study to gain a deeper understanding of the full spectrum of IPF genetic risk and performed a two-stage case–control association study. Methods A total of 1.7 Mb of DNA from 181 IPF patients was deep sequenced (>100×) across 11p15.5, 14q21.3 and 17q21.31 loci. Comparisons were performed against 501 unrelated controls and replication studies were assessed in 3968 subjects. Results 36 SNVs were associated with IPF susceptibility in the discovery stage (p<5.0×10−8). After meta-analysis, the strongest association corresponded to rs35705950 (p=9.27×10−57) located upstream from the mucin 5B gene (MUC5B). Additionally, a novel association was found for two co-inherited low-frequency SNVs (<5%) in MUC5AC, predicting a missense amino acid change in mucin 5AC (lowest p=2.27×10−22). Conditional and haplotype analyses in 11p15.5 supported the existence of an additional contribution of MUC5AC variants to IPF risk. Conclusions This study reinforces the significant IPF associations of these loci and implicates MUC5AC as another key player in IPF susceptibility. Deep sequencing of genome-wide association study hits identified novel low-frequency variants associated with IPF susceptibility.http://bit.ly/2IF4AT8
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Affiliation(s)
- Jose M Lorenzo-Salazar
- Genomics Division, Instituto Tecnológico y de Energías Renovables (ITER), Santa Cruz de Tenerife, Spain.,These authors contributed equally to this work
| | - Shwu-Fan Ma
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, VA, USA.,These authors contributed equally to this work
| | - Jonathan Jou
- College of Medicine, University of Illinois, Chicago, IL, USA.,These authors contributed equally to this work
| | - Pei-Chi Hou
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, VA, USA
| | - Beatriz Guillen-Guio
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Richard J Allen
- Dept of Health Sciences, University of Leicester, Leicester, UK
| | - R Gisli Jenkins
- NIHR Biomedical Research Centre, Respiratory Research Unit, University of Nottingham, Nottingham, UK
| | - Louise V Wain
- Dept of Health Sciences, University of Leicester, Leicester, UK.,National Institute for Health Research, Leicester Respiratory Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Justin M Oldham
- Pulmonary and Critical Care Medicine, University of California at Davis, Sacramento, CA, USA
| | - Imre Noth
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, VA, USA
| | - Carlos Flores
- Genomics Division, Instituto Tecnológico y de Energías Renovables (ITER), Santa Cruz de Tenerife, Spain.,Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain.,CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
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50
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Hijazi K, Malyszko B, Steiling K, Xiao X, Liu G, Alekseyev YO, Dumas YM, Hertsgaard L, Jensen J, Hatsukami D, Brooks DR, O'Connor G, Beane J, Lenburg ME, Spira A. Tobacco-Related Alterations in Airway Gene Expression are Rapidly Reversed Within Weeks Following Smoking-Cessation. Sci Rep 2019; 9:6978. [PMID: 31061400 PMCID: PMC6502805 DOI: 10.1038/s41598-019-43295-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 04/10/2019] [Indexed: 01/17/2023] Open
Abstract
The physiologic response to tobacco smoke can be measured by gene-expression profiling of the airway epithelium. Temporal resolution of kinetics of gene-expression alterations upon smoking-cessation might delineate distinct biological processes that are activated during recovery from tobacco smoke exposure. Using whole genome gene-expression profiling of individuals initiating a smoking-cessation attempt, we sought to characterize the kinetics of gene-expression alterations in response to short-term smoking-cessation in the nasal epithelium. RNA was extracted from the nasal epithelial of active smokers at baseline and at 4, 8, 16, and 24-weeks after smoking-cessation and put onto Gene ST arrays. Gene-expression levels of 119 genes were associated with smoking-cessation (FDR < 0.05, FC ≥1.7) with a majority of the changes occurring by 8-weeks and a subset changing by 4-weeks. Genes down-regulated by 4- and 8-weeks post-smoking-cessation were involved in xenobiotic metabolism and anti-apoptotic functions respectively. These genes were enriched among genes previously found to be induced in smokers and following short-term in vitro exposure of airway epithelial cells to cigarette smoke (FDR < 0.05). Our findings suggest that the nasal epithelium can serve as a minimally-invasive tool to measure the reversible impact of smoking and broadly, may serve to assess the physiological impact of changes in smoking behavior.
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Affiliation(s)
- Kahkeshan Hijazi
- Department of Medicine, Section of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, United States
- Bioinformatics Program, Boston University, Boston, Massachusetts, United States
| | - Bozena Malyszko
- Department of Medicine, Section of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Katrina Steiling
- Department of Medicine, Section of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, United States
- Bioinformatics Program, Boston University, Boston, Massachusetts, United States
- The Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Xiaohui Xiao
- Department of Medicine, Section of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Gang Liu
- Department of Medicine, Section of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Yuriy O Alekseyev
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Yves-Martine Dumas
- Department of Medicine, Section of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Louise Hertsgaard
- Tobacco Research Programs, University of Minnesota, Minneapolis, Minnesota, United States
| | - Joni Jensen
- Tobacco Research Programs, University of Minnesota, Minneapolis, Minnesota, United States
| | - Dorothy Hatsukami
- Tobacco Research Programs, University of Minnesota, Minneapolis, Minnesota, United States
| | - Daniel R Brooks
- Department of Epidemiology, School of Public Health, Boston University, Boston, Massachusetts, United States
| | - George O'Connor
- The Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts, United States
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Jennifer Beane
- Department of Medicine, Section of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Marc E Lenburg
- Department of Medicine, Section of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, United States
- Bioinformatics Program, Boston University, Boston, Massachusetts, United States
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, Massachusetts, United States
| | - Avrum Spira
- Department of Medicine, Section of Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts, United States.
- Bioinformatics Program, Boston University, Boston, Massachusetts, United States.
- The Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts, United States.
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, Massachusetts, United States.
- Johnson & Johnson Innovation Center, Cambridge, Massachusetts, United States.
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