1
|
Roesch EA, Rahmaoui A, Lazarus RA, Konstan MW. The continuing need for dornase alfa for extracellular airway DNA hydrolysis in the era of CFTR modulators. Expert Rev Respir Med 2024:1-16. [PMID: 39176450 DOI: 10.1080/17476348.2024.2394694] [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: 04/26/2024] [Revised: 08/11/2024] [Accepted: 08/16/2024] [Indexed: 08/24/2024]
Abstract
INTRODUCTION The availability of cystic fibrosis transmembrane conductance regulator (CFTR) modulators opens the possibility of discontinuing some chronic pulmonary therapies to decrease cystic fibrosis (CF) treatment burden. However, CFTR modulators may not adequately address neutrophilic inflammation, which contributes to a self-perpetual cycle of viscous CF sputum, airway obstruction, inflammation, and lung function decline. AREAS COVERED This review discusses the emerging role of neutrophil extracellular traps in CF and its role in CF sputum viscosity, airway obstruction, and inflammation, based on a literature search of PubMed (1990-present). We summarize clinical trials and real-world studies that support the efficacy of dornase alfa (Pulmozyme) in improving lung function and reducing pulmonary exacerbation in people with CF (PwCF), and we discuss the potential role of dornase alfa in reducing airway inflammation. We also examine the findings of short-term trials evaluating the discontinuation of mucoactive therapy in PwCF receiving CFTR modulators. EXPERT OPINION Long-term studies are needed to assess the impact of discontinuing mucoactive therapy in PwCF who are clinically stable while receiving CFTR modulatory therapy. Treatment decisions should take into account the severity of underlying lung disease. People with advanced CF will likely require ongoing mucoactive therapy.
Collapse
Affiliation(s)
- Erica A Roesch
- Department of Pediatrics, Rainbow Babies and Children's Hospital and Case Western Reserve University, Cleveland, OH, USA
| | | | - Robert A Lazarus
- Departments of Biological Chemistry and Early Discovery Biochemistry, Genentech, Inc., South San Francisco, CA, USA
| | - Michael W Konstan
- Department of Pediatrics, Rainbow Babies and Children's Hospital and Case Western Reserve University, Cleveland, OH, USA
| |
Collapse
|
2
|
Lozano-Iturbe V, Blanco-Agudín N, Vázquez-Espinosa E, Fernández-Vega I, Merayo-Lloves J, Vazquez F, Girón RM, Quirós LM. The Binding of Pseudomonas aeruginosa to Cystic Fibrosis Bronchial Epithelial Model Cells Alters the Composition of the Exosomes They Produce Compared to Healthy Control Cells. Int J Mol Sci 2024; 25:895. [PMID: 38255969 PMCID: PMC10815301 DOI: 10.3390/ijms25020895] [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: 12/05/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Cystic fibrosis (CF) is a genetic disease that causes dehydration of the surface of the airways, increasing lung infections, most frequently caused by Pseudomonas aeruginosa. Exosomes are nanovesicles released by cells that play an essential role in intercellular communication, although their role during bacterial infections is not well understood. In this article, we analyze the alterations in exosomes produced by healthy bronchial epithelial and cystic fibrosis cell lines caused by the interaction with P. aeruginosa. The proteomic study detected alterations in 30% of the species analyzed. In healthy cells, they mainly involve proteins related to the extracellular matrix, cytoskeleton, and various catabolic enzymes. In CF, proteins related to the cytoskeleton and matrix, in addition to the proteasome. These differences could be related to the inflammatory response. A study of miRNAs detected alterations in 18% of the species analyzed. The prediction of their potential biological targets identified 7149 genes, regulated by up to 7 different miRNAs. The identification of their functions showed that they preferentially affected molecules involved in binding and catalytic activities, although with differences between cell types. In conclusion, this study shows differences in exosomes between CF and healthy cells that could be involved in the response to infection.
Collapse
Affiliation(s)
- Víctor Lozano-Iturbe
- Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain; (V.L.-I.); (N.B.-A.); (F.V.)
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; (I.F.-V.); (J.M.-L.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Noelia Blanco-Agudín
- Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain; (V.L.-I.); (N.B.-A.); (F.V.)
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; (I.F.-V.); (J.M.-L.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Emma Vázquez-Espinosa
- Pneumology Service, Institute for Health Research (IP), Hospital Universitario de La Princesa, 28006 Madrid, Spain;
| | - Iván Fernández-Vega
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; (I.F.-V.); (J.M.-L.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Pathology, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Jesús Merayo-Lloves
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; (I.F.-V.); (J.M.-L.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Fernando Vazquez
- Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain; (V.L.-I.); (N.B.-A.); (F.V.)
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; (I.F.-V.); (J.M.-L.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Microbiology, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Rosa M. Girón
- Pneumology Service, Institute for Health Research (IP), Hospital Universitario de La Princesa, 28006 Madrid, Spain;
| | - Luis M. Quirós
- Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain; (V.L.-I.); (N.B.-A.); (F.V.)
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, University of Oviedo, 33012 Oviedo, Spain; (I.F.-V.); (J.M.-L.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| |
Collapse
|
3
|
Rubio K, Müller JM, Mehta A, Watermann I, Olchers T, Koch I, Wessels S, Schneider MA, Araujo-Ramos T, Singh I, Kugler C, Stoleriu MG, Kriegsmann M, Eichhorn M, Muley T, Merkel OM, Braun T, Ammerpohl O, Reck M, Tresch A, Barreto G. Preliminary results from the EMoLung clinical study showing early lung cancer detection by the LC score. Discov Oncol 2023; 14:181. [PMID: 37787775 PMCID: PMC10547665 DOI: 10.1007/s12672-023-00799-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 09/22/2023] [Indexed: 10/04/2023] Open
Abstract
BACKGROUND Lung cancer (LC) causes more deaths worldwide than any other cancer type. Despite advances in therapeutic strategies, the fatality rate of LC cases remains high (95%) since the majority of patients are diagnosed at late stages when patient prognosis is poor. Analysis of the International Association for the Study of Lung Cancer (IASLC) database indicates that early diagnosis is significantly associated with favorable outcome. However, since symptoms of LC at early stages are unspecific and resemble those of benign pathologies, current diagnostic approaches are mostly initiated at advanced LC stages. METHODS We developed a LC diagnosis test based on the analysis of distinct RNA isoforms expressed from the GATA6 and NKX2-1 gene loci, which are detected in exhaled breath condensates (EBCs). Levels of these transcript isoforms in EBCs were combined to calculate a diagnostic score (the LC score). In the present study, we aimed to confirm the applicability of the LC score for the diagnosis of early stage LC under clinical settings. Thus, we evaluated EBCs from patients with early stage, resectable non-small cell lung cancer (NSCLC), who were prospectively enrolled in the EMoLung study at three sites in Germany. RESULTS LC score-based classification of EBCs confirmed its performance under clinical conditions, achieving a sensitivity of 95.7%, 91.3% and 84.6% for LC detection at stages I, II and III, respectively. CONCLUSIONS The LC score is an accurate and non-invasive option for early LC diagnosis and a valuable complement to LC screening procedures based on computed tomography.
Collapse
Affiliation(s)
- Karla Rubio
- Université de Lorraine, CNRS, Laboratoire IMoPA, UMR 7365, 54000, Nancy, France
- Lung Cancer Epigenetic, Max-Planck-Institute for Heart and Lung Research, 61231, Bad Nauheim, Germany
- Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA
- International Laboratory EPIGEN, Consejo de Ciencia y Tecnología del Estado de Puebla (CONCYTEP), Instituto de Ciencias, EcoCampus, Benemérita Universidad Autónoma de Puebla, 72570, Puebla, Mexico
| | - Jason M Müller
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Institute of Medical Statistics and Computational Biology, Faculty of Medicine, University of Cologne, Cologne, Germany
| | - Aditi Mehta
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Pharmaceutical Technology and Biopharmaceutics, Department of Pharmacy, Ludwig-Maximilians-University (LMU) Munich, 81377, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany
| | - Iris Watermann
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- LungenClinic Grosshansdorf (GHD), Airway Research Center North (ARCN), German Center for Lung Research (DZL), 22927, Großhansdorf, Germany
| | - Till Olchers
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- LungenClinic Grosshansdorf (GHD), Airway Research Center North (ARCN), German Center for Lung Research (DZL), 22927, Großhansdorf, Germany
| | - Ina Koch
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany
- Asklepios Biobank für Lungenerkrankungen, Asklepios Klinik Gauting GmbH, 82131, Gauting, Germany
| | - Sabine Wessels
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, 69126, Heidelberg, Germany
- Translational Lung Research Center Heidelberg (TLRC), 69120, Heidelberg, Germany
| | - Marc A Schneider
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, 69126, Heidelberg, Germany
- Translational Lung Research Center Heidelberg (TLRC), 69120, Heidelberg, Germany
| | - Tania Araujo-Ramos
- German Cancer Research Center (DKFZ) Heidelberg, Division Chronic Inflammation and Cancer, Emmy Noether Research Group Epigenetic Machineries and Cancer, 69120, Heidelberg, Germany
| | - Indrabahadur Singh
- German Cancer Research Center (DKFZ) Heidelberg, Division Chronic Inflammation and Cancer, Emmy Noether Research Group Epigenetic Machineries and Cancer, 69120, Heidelberg, Germany
| | - Christian Kugler
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- LungenClinic Grosshansdorf (GHD), Airway Research Center North (ARCN), German Center for Lung Research (DZL), 22927, Großhansdorf, Germany
| | - Mircea Gabriel Stoleriu
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany
- Asklepios Biobank für Lungenerkrankungen, Asklepios Klinik Gauting GmbH, 82131, Gauting, Germany
| | - Mark Kriegsmann
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Translational Lung Research Center Heidelberg (TLRC), 69120, Heidelberg, Germany
- Institute of Pathology, University of Heidelberg, 69120, Heidelberg, Germany
| | - Martin Eichhorn
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Translational Lung Research Center Heidelberg (TLRC), 69120, Heidelberg, Germany
- Department of Thoracic Surgery, University of Heidelberg, 69120, Heidelberg, Germany
| | - Thomas Muley
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Translational Research Unit, Thoraxklinik at Heidelberg University Hospital, 69126, Heidelberg, Germany
- Translational Lung Research Center Heidelberg (TLRC), 69120, Heidelberg, Germany
| | - Olivia M Merkel
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Pharmaceutical Technology and Biopharmaceutics, Department of Pharmacy, Ludwig-Maximilians-University (LMU) Munich, 81377, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Munich, Germany
| | - Thomas Braun
- Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany
- Department of Cardiac Development, Max-Planck-Institute for Heart and Lung Research, 61231, Bad Nauheim, Germany
| | - Ole Ammerpohl
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- Institute of Human Genetics, University Medical Center Ulm, 89081, Ulm, Germany
| | - Martin Reck
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany
- LungenClinic Grosshansdorf (GHD), Airway Research Center North (ARCN), German Center for Lung Research (DZL), 22927, Großhansdorf, Germany
| | - Achim Tresch
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.
- Institute of Medical Statistics and Computational Biology, Faculty of Medicine, University of Cologne, Cologne, Germany.
- Center for Data and Simulation Science, University of Cologne, Cologne, Germany.
| | - Guillermo Barreto
- Université de Lorraine, CNRS, Laboratoire IMoPA, UMR 7365, 54000, Nancy, France.
- Lung Cancer Epigenetic, Max-Planck-Institute for Heart and Lung Research, 61231, Bad Nauheim, Germany.
- Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany.
- German Center for Lung Research (Deutsches Zentrum für Lungenforschung, DZL), Gießen, Germany.
| |
Collapse
|
4
|
Shi M, Lu Q, Zhao Y, Ding Z, Yu S, Li J, Ji M, Fan H, Hou S. miR-223: a key regulator of pulmonary inflammation. Front Med (Lausanne) 2023; 10:1187557. [PMID: 37465640 PMCID: PMC10350674 DOI: 10.3389/fmed.2023.1187557] [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: 03/16/2023] [Accepted: 06/14/2023] [Indexed: 07/20/2023] Open
Abstract
Small noncoding RNAs, known as microRNAs (miRNAs), are vital for the regulation of diverse biological processes. miR-223, an evolutionarily conserved anti-inflammatory miRNA expressed in cells of the myeloid lineage, has been implicated in the regulation of monocyte-macrophage differentiation, proinflammatory responses, and the recruitment of neutrophils. The biological functions of this gene are regulated by its expression levels in cells or tissues. In this review, we first outline the regulatory role of miR-223 in granulocytes, macrophages, endothelial cells, epithelial cells and dendritic cells (DCs). Then, we summarize the possible role of miR-223 in chronic obstructive pulmonary disease (COPD), acute lung injury (ALI), coronavirus disease 2019 (COVID-19) and other pulmonary inflammatory diseases to better understand the molecular regulatory networks in pulmonary inflammatory diseases.
Collapse
Affiliation(s)
- Mingyu Shi
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
| | - Qianying Lu
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
| | - Yanmei Zhao
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
| | - Ziling Ding
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
| | - Sifan Yu
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
| | - Junfeng Li
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
| | - Mengjun Ji
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
| | - Haojun Fan
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, China
| | - Shike Hou
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, China
| |
Collapse
|
5
|
Cherchi R, Cusano R, Orrù S, Ferrari PA, Massidda M, Fotia G, De Matteis S, Cocco P. Next Generation Sequencing for miRNA Detection on the Exhaled Breath Condensate: A Pilot Study. Epigenet Insights 2023; 16:25168657231160985. [PMID: 37025420 PMCID: PMC10070752 DOI: 10.1177/25168657231160985] [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: 12/19/2022] [Accepted: 02/14/2023] [Indexed: 04/05/2023] Open
Abstract
Introduction: Exhaled breath condensate (EBC) sampling has been suggested as a less-invasive and cost-effective method to detect biological macromolecules, including miRNA. To explore the feasibility of its use as a biomarker of early effects of asbestos exposure, we conducted a preliminary test on male volunteers by comparing the miRNA profile in the EBC and the plasma using 2 different sequencing platforms. Methods: Six male volunteers, all retired and unexposed to dust or fumes, participated in the test. RNA was extracted from 200 μL EBC samples and same-size plasma samples. Sample aliquots were processed in 2 laboratories using 2 different sequencing platforms: a MiSeq Illumina® platform and a more performing HiSeq Illumina® platform. Results: The HiSeq3000® sequencing platform identified twice as many unique molecular indexes (UMI)-validated miRNA as the MiSeq® platform. The Spearman’s correlation coefficient between EBC counts and plasma counts was significant in 5/6 subjects with either platform (MiSeq® = 0.128-0.508, P = .026-<.001; HiSeq® = 0.156-0.412, P = .001-<.001). The intraclass correlation coefficient confirmed the consistency of the miRNA profile over the 6 participants with both biospecimens. Exploring the agreement between the EBC and plasma samples with Bland-Altman plots showed that using the HiSeq3000® platform substantially improved the EBC miRNA detection rate. Conclusion: Our preliminary study confirms that, when using the HiSeq® sequencing platform, EBC sampling is a suitable, non-invasive method to detect the miRNA profile in healthy subjects.
Collapse
Affiliation(s)
- Roberto Cherchi
- Operative Unit of Thoracic Surgery, Hospital G. Brotzu, Cagliari, Italy
| | - Roberto Cusano
- CRS4-NGS Core, POLARIS Research Park, Pula—Cagliari, Italy
| | - Sandro Orrù
- Operative Unit of Medical Genetics, Health Agency of Sardinia, Hospital Binaghi, Cagliari, Italy
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato—Cagliari, Italy
- Orrù S, Unit of Medical Genetics, Health Agency of Sardinia, Hospital Binaghi, Via Is Guadazzonis 3, Cagliari 09126, Italy.
| | - Paolo A Ferrari
- Operative Unit of Thoracic Surgery, Hospital G. Brotzu, Cagliari, Italy
| | | | - Giorgio Fotia
- CRS4-NGS Core, POLARIS Research Park, Pula—Cagliari, Italy
| | - Sara De Matteis
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato—Cagliari, Italy
| | - Pierluigi Cocco
- Centre for Occupational and Environmental Health, Division of Population Health, Health Services Research & Primary Care, University of Manchester, Manchester, UK
| |
Collapse
|
6
|
Non-Coding RNAs in Pulmonary Diseases: Comparison of Different Airway-Derived Biosamples. Int J Mol Sci 2023; 24:ijms24032006. [PMID: 36768329 PMCID: PMC9916756 DOI: 10.3390/ijms24032006] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
Due to their structural conservation and functional role in critical signalling pathways, non-coding RNA (ncRNA) is a promising biomarker and modulator of pathological conditions. Most research has focussed on the role of microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs). These molecules have been investigated both in a cellular and an extracellular context. Sources of ncRNAs may include organ-specific body fluids. Therefore, studies on ncRNAs in respiratory diseases include those on sputum, bronchoalveolar lavage fluid (BALF) and exhaled breath condensate (EBC). It is worth identifying the limitations of these biosamples in terms of ncRNA abundance, processing and diagnostic potential. This review describes the progress in the literature on the role of ncRNAs in the pathogenesis and progression of severe respiratory diseases, including cystic fibrosis, asthma and interstitial lung disease. We showed that there is a deficit of information on lncRNAs and circRNAs in selected diseases, despite attempts to functionally bind them to miRNAs. miRNAs remain the most well-studied, but only a few investigations have been conducted on the least invasive biosample material, i.e., EBC. To summarise the studies conducted to date, we also performed a preliminary in silico analysis of the reported miRNAs, demonstrating the complexity of their role and interactions in selected respiratory diseases.
Collapse
|
7
|
Bermick J, Schaller M. Epigenetic regulation of pediatric and neonatal immune responses. Pediatr Res 2022; 91:297-327. [PMID: 34239066 DOI: 10.1038/s41390-021-01630-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/01/2021] [Accepted: 06/09/2021] [Indexed: 02/06/2023]
Abstract
Epigenetic regulation of transcription is a collective term that refers to mechanisms known to regulate gene transcription without changing the underlying DNA sequence. These mechanisms include DNA methylation and histone tail modifications which influence chromatin accessibility, and microRNAs that act through post-transcriptional gene silencing. Epigenetics is known to regulate a variety of biological processes, and the role of epigtenetics in immunity and immune-mediated diseases is becoming increasingly recognized. While DNA methylation is the most widely studied, each of these systems play an important role in the development and maintenance of appropriate immune responses. There is clear evidence that epigenetic mechanisms contribute to developmental stage-specific immune responses in a cell-specific manner. There is also mounting evidence that prenatal exposures alter epigenetic profiles and subsequent immune function in exposed offspring. Early life exposures that are associated with poor long-term health outcomes also appear to impact immune specific epigenetic patterning. Finally, each of these epigenetic mechanisms contribute to the pathogenesis of a wide variety of diseases that manifest during childhood. This review will discuss each of these areas in detail. IMPACT: Epigenetics, including DNA methylation, histone tail modifications, and microRNA expression, dictate immune cell phenotypes. Epigenetics influence immune development and subsequent immune health. Prenatal, perinatal, and postnatal exposures alter immune cell epigenetic profiles and subsequent immune function. Numerous pediatric-onset diseases have an epigenetic component. Several successful strategies for childhood diseases target epigenetic mechanisms.
Collapse
Affiliation(s)
- Jennifer Bermick
- Department of Pediatrics, Division of Neonatology, University of Iowa, Iowa City, IA, USA. .,Iowa Inflammation Program, University of Iowa, Iowa City, IA, USA.
| | - Matthew Schaller
- Department of Pulmonary, Critical Care & Sleep Medicine, University of Florida, Gainesville, FL, USA
| |
Collapse
|
8
|
Woodley FW, Gecili E, Szczesniak RD, Shrestha CL, Nemastil CJ, Kopp BT, Hayes D. Sweat metabolomics before and after intravenous antibiotics for pulmonary exacerbation in people with cystic fibrosis. Respir Med 2022; 191:106687. [PMID: 34864373 PMCID: PMC8810598 DOI: 10.1016/j.rmed.2021.106687] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 11/06/2021] [Accepted: 11/20/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND People with cystic fibrosis (PWCF) suffer from acute unpredictable reductions in pulmonary function associated with a pulmonary exacerbation (PEx) that may require hospitalization. PEx symptoms vary between PWCF without universal diagnostic criteria for diagnosis and response to treatment. RESEARCH QUESTION We characterized sweat metabolomes before and after intravenous (IV) antibiotics in PWCF hospitalized for PEx to determine feasibility and define biological alterations by IV antibiotics for PEx. STUDY DESIGN AND METHODS PWCF with PEx requiring hospitalization for IV antibiotics were recruited from clinic. Sweat samples were collected using the Macroduct® Sweat Collection System at admission prior to initiation of IV antibiotics and after completion prior to discharge. Samples were analyzed for metabolite changes using ultra-high-performance liquid chromatography/tandem accurate mass spectrometry. RESULTS Twenty-six of 29 hospitalized PWCF completed the entire study. A total of 326 compounds of known identity were detected in sweat samples. Of detected metabolites, 147 were significantly different between pre-initiation and post-completion of IV antibiotics for PEx (average treatment 14 days). Global sweat metabolomes changed from before and after IV antibiotic treatment. We discovered specific metabolite profiles predictive of PEx status as well as enriched biologic pathways associated with PEx. However, metabolomic changes were similar in PWCF who failed to return to baseline pulmonary function and those who did not. INTERPRETATION Our findings demonstrate the feasibility of non-invasive sweat metabolomic profiling in PWCF and the potential for sweat metabolomics as a prospective diagnostic and research tool to further advance our understanding of PEx in PWCF.
Collapse
Affiliation(s)
- Frederick W. Woodley
- Division of Gastroenterology, Hepatology and Nutrition, Nationwide Children’s Hospital and The Ohio State University College of Medicine, Columbus, OH, USA
| | - Emrah Gecili
- Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Rhonda D. Szczesniak
- Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, OH, USA,Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Chandra L. Shrestha
- Center for Microbial Pathogenesis, The Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, USA
| | - Christopher J. Nemastil
- Division of Pulmonary Medicine, Nationwide Children’s Hospital and The Ohio State University College of Medicine, Columbus, OH, USA
| | - Benjamin T. Kopp
- Division of Pulmonary Medicine, Nationwide Children’s Hospital and The Ohio State University College of Medicine, Columbus, OH, USA,Center for Microbial Pathogenesis, The Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, USA
| | - Don Hayes
- Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, OH, USA
| |
Collapse
|
9
|
Special Issue: Rare Respiratory Diseases: A Personal and Public Health Issue. J Clin Med 2021; 10:jcm10245906. [PMID: 34945201 PMCID: PMC8703389 DOI: 10.3390/jcm10245906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/01/2022] Open
|
10
|
McKiernan PJ, Molloy KP, Glasgow AMA, McElvaney NG, Greene CM. miR-224-5p and miR-545-5p Levels Relate to Exacerbations and Lung Function in a Pilot Study of X-Linked MicroRNA Expression in Cystic Fibrosis Monocytes. Front Genet 2021; 12:739311. [PMID: 34868211 PMCID: PMC8633565 DOI: 10.3389/fgene.2021.739311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/18/2021] [Indexed: 01/10/2023] Open
Abstract
Altered microRNA expression patterns in bronchial brushings from people with versus without cystic fibrosis (CF) relate to functional changes and disease pathophysiology. The expression of microRNAs encoded on the X chromosome is also altered in peripheral blood monocytes of p. Phe508del homozygous versus non-CF individuals. Here we investigate whether levels of the top seven X-linked microRNAs (miR-224-5p, miR-452-5p, miR-450b-5p, miR-542-3p, miR-450a-5p, miR-424-5p, and miR-545-5p) that are significantly increased over 1.5 fold in CF versus non-CF monocytes correlate with lung function. CD14+ monocytes were isolated from males and females with (n = 12) and without cystic fibrosis (n = 12) and examined for the expression of X-linked microRNAs by qRT-PCR array. MicroRNA target mRNA levels were quantified using qRT-PCR. Clinical correlations with lung function data were analysed in the CF cohort. Increasing levels of miR-545-5p correlated moderately with FEV1% predicted (r = -0.4553, p > 0.05) and strongly with exacerbation rate (r = 0.5858, p = 0.0483). miR-224-5p levels were significantly higher in the severe (FEV1 <40%) versus mild (FEV1 ≥80%, p = 0.0377) or moderate (FEV1 40-79%, p = 0.0350) groups. MiR-224-5p expression inversely correlated with lung function (FEV1%: r = -0.5944, p = 0.0457) and positively correlated with exacerbation rates (r = 0.6139, p = 0.0370). These data show that peripheral blood monocyte miR-545-5p and miR-224-5p levels correlate with exacerbation rate, whilst miR-224-5p levels also correlate with lung function in cystic fibrosis.
Collapse
Affiliation(s)
- Paul J McKiernan
- Department of Medicine, Royal College of Surgeons in Ireland, Education and Research Centre, Beaumont Hospital, Dublin, Ireland
| | - Kevin P Molloy
- Department of Medicine, Royal College of Surgeons in Ireland, Education and Research Centre, Beaumont Hospital, Dublin, Ireland
| | - Arlene M A Glasgow
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland, Education and Research Centre, Beaumont Hospital, Dublin, Ireland
| | - Noel G McElvaney
- Department of Medicine, Royal College of Surgeons in Ireland, Education and Research Centre, Beaumont Hospital, Dublin, Ireland
| | - Catherine M Greene
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland, Education and Research Centre, Beaumont Hospital, Dublin, Ireland
| |
Collapse
|