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Markel M, Tse WH, De Leon N, Jank M, Albrechtsen J, Kahnamoui Zadeh S, Patel D, Ozturk A, Lacher M, Wagner R, Keijzer R. Experimental congenital diaphragmatic hernia features an alteration of DNA sensing targets cGAS and STING. Pediatr Res 2024:10.1038/s41390-024-03277-2. [PMID: 38816442 DOI: 10.1038/s41390-024-03277-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND The pathogenesis of congenital diaphragmatic hernia (CDH) depends on multiple factors. Activation of the DNA-sensing cyclic-GMP-AMP-synthase (cGAS) and Stimulator-of-Interferon-Genes (STING) pathway by double-stranded DNA (dsDNA) links environmental stimuli and inflammation. We hypothesized that nitrofen exposure alters cGAS and STING in human bronchial epithelial cells and fetal rat lungs. METHODS We used the Quant-IT™-PicoGreen™ assay to assess dsDNA concentration in BEAS-2B cells after 24 h of nitrofen-exposure and performed immunofluorescence of cGAS/STING. We used nitrofen to induce CDH and harvested control and CDH lungs at embryonic day E15, E18 and E21 for cGAS/STING immunofluorescence, RT-qPCR and RNA-Scope™ in-situ-hybridization (E18, E21). RESULTS We found a higher concentration of dsDNA following nitrofen treatment. Nitrofen-exposure to BEAS-2B cells increased cGAS and STING protein abundance. cGAS abundance was higher in nitrofen lungs at E15, E18 and E21. RNA-Scope in-situ-hybridization showed higher cGAS and STING expression in E18 and E21 lungs. RT-qPCR revealed higher mRNA expression levels of STING in E21 nitrofen-induced lungs. CONCLUSION Our data suggest that nitrofen-exposure increases dsDNA content which leads to stimulation of the cGAS/STING pathway in human BEAS-2B cells and the nitrofen rat model of CDH. Consequently, DNA sensing and the cGAS-STING-pathway potentially contribute to abnormal lung development in CDH. IMPACT STATEMENT We found an alteration of DNA sensing targets cGAS and STING in human BEAS-2B cells and experimental congenital diaphragmatic hernia with higher protein abundance and mRNA expression in cells and lung sections of nitrofen-treated rat pups. This is the first study to investigate DNA sensing, a potential link between environmental stimuli and inflammation, in experimental CDH. Our study extends the knowledge on the pathogenesis of experimental CDH.
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Affiliation(s)
- Moritz Markel
- Department of Pediatric Surgery, University of Leipzig, Leipzig, Germany
- Division of Pediatric Surgery, Departments of Surgery, Pediatrics & Child Health and Physiology & Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, and Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Wai Hei Tse
- Division of Pediatric Surgery, Departments of Surgery, Pediatrics & Child Health and Physiology & Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, and Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Nolan De Leon
- Division of Pediatric Surgery, Departments of Surgery, Pediatrics & Child Health and Physiology & Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, and Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Marietta Jank
- Division of Pediatric Surgery, Departments of Surgery, Pediatrics & Child Health and Physiology & Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, and Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
- Department of Pediatric Surgery, Medical Faculty Mannheim, University of Medical Center Mannheim, Heidelberg University, Heidelberg, Germany
| | - Jaida Albrechtsen
- Division of Pediatric Surgery, Departments of Surgery, Pediatrics & Child Health and Physiology & Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, and Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Shana Kahnamoui Zadeh
- Division of Pediatric Surgery, Departments of Surgery, Pediatrics & Child Health and Physiology & Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, and Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Daywin Patel
- Division of Pediatric Surgery, Departments of Surgery, Pediatrics & Child Health and Physiology & Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, and Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Arzu Ozturk
- Division of Pediatric Surgery, Departments of Surgery, Pediatrics & Child Health and Physiology & Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, and Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Martin Lacher
- Department of Pediatric Surgery, University of Leipzig, Leipzig, Germany
| | - Richard Wagner
- Department of Pediatric Surgery, University of Leipzig, Leipzig, Germany
| | - Richard Keijzer
- Division of Pediatric Surgery, Departments of Surgery, Pediatrics & Child Health and Physiology & Pathophysiology, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, and Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada.
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2
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Gerli MFM, Calà G, Beesley MA, Sina B, Tullie L, Sun KY, Panariello F, Michielin F, Davidson JR, Russo FM, Jones BC, Lee DDH, Savvidis S, Xenakis T, Simcock IC, Straatman-Iwanowska AA, Hirst RA, David AL, O'Callaghan C, Olivo A, Eaton S, Loukogeorgakis SP, Cacchiarelli D, Deprest J, Li VSW, Giobbe GG, De Coppi P. Single-cell guided prenatal derivation of primary fetal epithelial organoids from human amniotic and tracheal fluids. Nat Med 2024; 30:875-887. [PMID: 38438734 PMCID: PMC10957479 DOI: 10.1038/s41591-024-02807-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/05/2024] [Indexed: 03/06/2024]
Abstract
Isolation of tissue-specific fetal stem cells and derivation of primary organoids is limited to samples obtained from termination of pregnancies, hampering prenatal investigation of fetal development and congenital diseases. Therefore, new patient-specific in vitro models are needed. To this aim, isolation and expansion of fetal stem cells during pregnancy, without the need for tissue samples or reprogramming, would be advantageous. Amniotic fluid (AF) is a source of cells from multiple developing organs. Using single-cell analysis, we characterized the cellular identities present in human AF. We identified and isolated viable epithelial stem/progenitor cells of fetal gastrointestinal, renal and pulmonary origin. Upon culture, these cells formed clonal epithelial organoids, manifesting small intestine, kidney tubule and lung identity. AF organoids exhibit transcriptomic, protein expression and functional features of their tissue of origin. With relevance for prenatal disease modeling, we derived lung organoids from AF and tracheal fluid cells of congenital diaphragmatic hernia fetuses, recapitulating some features of the disease. AF organoids are derived in a timeline compatible with prenatal intervention, potentially allowing investigation of therapeutic tools and regenerative medicine strategies personalized to the fetus at clinically relevant developmental stages.
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Affiliation(s)
- Mattia Francesco Maria Gerli
- Department of Surgical Biotechnology, Division of Surgery and Interventional Science, University College London, London, UK.
- Great Ormond Street Institute of Child Health, University College London, London, UK.
| | - Giuseppe Calà
- Department of Surgical Biotechnology, Division of Surgery and Interventional Science, University College London, London, UK
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Max Arran Beesley
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Beatrice Sina
- Great Ormond Street Institute of Child Health, University College London, London, UK
- Politecnico di Milano, Milan, Italy
| | - Lucinda Tullie
- Great Ormond Street Institute of Child Health, University College London, London, UK
- Stem Cell and Cancer Biology Laboratory, The Francis Crick Institute, London, UK
| | - Kylin Yunyan Sun
- Department of Surgical Biotechnology, Division of Surgery and Interventional Science, University College London, London, UK
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Francesco Panariello
- Armenise/Harvard Laboratory of Integrative Genomics, Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
| | - Federica Michielin
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Joseph R Davidson
- Great Ormond Street Institute of Child Health, University College London, London, UK
- Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK
| | - Francesca Maria Russo
- Department of Development and Regeneration, Woman and Child and UZ Leuven Clinical Department of Obstetrics and Gynaecology, KU Leuven, Leuven, Belgium
| | - Brendan C Jones
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Dani Do Hyang Lee
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Savvas Savvidis
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - Theodoros Xenakis
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Ian C Simcock
- Great Ormond Street Institute of Child Health, University College London, London, UK
- Department of Radiology, Great Ormond Street Hospital, London, UK
| | | | - Robert A Hirst
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
| | - Anna L David
- Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK
- Department of Development and Regeneration, Woman and Child and UZ Leuven Clinical Department of Obstetrics and Gynaecology, KU Leuven, Leuven, Belgium
| | | | - Alessandro Olivo
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - Simon Eaton
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Stavros P Loukogeorgakis
- Great Ormond Street Institute of Child Health, University College London, London, UK
- Specialist Neonatal and Paediatric Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Davide Cacchiarelli
- Armenise/Harvard Laboratory of Integrative Genomics, Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy
- Genomics and Experimental Medicine Program, Scuola Superiore Meridionale, Naples, Italy
| | - Jan Deprest
- Elizabeth Garrett Anderson Institute for Women's Health, University College London, London, UK
- Department of Development and Regeneration, Woman and Child and UZ Leuven Clinical Department of Obstetrics and Gynaecology, KU Leuven, Leuven, Belgium
| | - Vivian S W Li
- Stem Cell and Cancer Biology Laboratory, The Francis Crick Institute, London, UK
| | | | - Paolo De Coppi
- Great Ormond Street Institute of Child Health, University College London, London, UK.
- Department of Development and Regeneration, Woman and Child and UZ Leuven Clinical Department of Obstetrics and Gynaecology, KU Leuven, Leuven, Belgium.
- Specialist Neonatal and Paediatric Surgery, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
- Medical and Surgical Department of the Fetus, Newborn and Infant, Ospedale Pediatrico Bambino Gesù, IRCCS, Rome, Italy.
- NIHR Great Ormond Street Hospital Biomedical Research Centre, London, UK.
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3
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Bankoti K, Wang W, Amonkar GM, Xiong L, Shui JE, Zhao C, Van E, Mwase C, Park JA, Mou H, Fang Y, Que J, Bai Y, Lerou PH, Ai X. Airway Basal Stem Cells in COVID-19 Exhibit a Proinflammatory Signature and Impaired Mucocililary Differentiation. Am J Respir Cell Mol Biol 2024; 70:26-38. [PMID: 37699145 PMCID: PMC10768838 DOI: 10.1165/rcmb.2023-0104oc] [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: 03/20/2023] [Accepted: 09/12/2023] [Indexed: 09/14/2023] Open
Abstract
Airway basal stem cells (BSCs) play a critical role in epithelial regeneration. Whether coronavirus disease (COVID-19) affects BSC function is unknown. Here, we derived BSC lines from patients with COVID-19 using tracheal aspirates (TAs) to circumvent the biosafety concerns of live-cell derivation. We show that BSCs derived from the TAs of control patients are bona fide bronchial BSCs. TA BSCs from patients with COVID-19 tested negative for severe acute respiratory syndrome coronavirus 2 RNA; however, these so-termed COVID-19-exposed BSCs in vitro resemble a predominant BSC subpopulation uniquely present in patients with COVID-19, manifested by a proinflammatory gene signature and STAT3 hyperactivation. Furthermore, the sustained STAT3 hyperactivation drives goblet cell differentiation of COVID-19-exposed BSCs in an air-liquid interface. Last, these phenotypes of COVID-19-exposed BSCs can be induced in control BSCs by cytokine cocktail pretreatment. Taken together, acute inflammation in COVID-19 exerts a long-term impact on mucociliary differentiation of BSCs.
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Affiliation(s)
- Kamakshi Bankoti
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Wei Wang
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Gaurang M. Amonkar
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Linjie Xiong
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jessica E. Shui
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Caiqi Zhao
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Eric Van
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Chimwemwe Mwase
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Jin-Ah Park
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Hongmei Mou
- The Mucosal Immunology and Biology Research Center, Massachusetts General Hospital for Children, Boston, Massachusetts; and
| | - Yinshan Fang
- Columbia Center for Human Development, Columbia University Irving Medical Center, New York, New York
| | - Jianwen Que
- Columbia Center for Human Development, Columbia University Irving Medical Center, New York, New York
| | - Yan Bai
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Paul H. Lerou
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Xingbin Ai
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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4
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Blundell M, Doktor F, Figueira RL, Khalaj K, Biouss G, Antounians L, Zani A. Anti-inflammatory effects of antenatal administration of stem cell derived extracellular vesicles in the brain of rat fetuses with congenital diaphragmatic hernia. Pediatr Surg Int 2023; 39:291. [PMID: 37955723 DOI: 10.1007/s00383-023-05578-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/22/2023] [Indexed: 11/14/2023]
Abstract
PURPOSE Congenital diaphragmatic hernia (CDH) survivors may experience neurodevelopmental impairment, whose etiology remains elusive. Preclinical evidence indicates that amniotic fluid stem cell extracellular vesicle (AFSC-EV) administration promotes lung development but their effects on other organs are unknown. Herein, we investigated the brain of rat fetuses with CDH for signs of inflammation and response to AFSC-EVs. METHODS CDH was induced by maternal nitrofen administration at E9.5. At E18.5, fetuses were injected intra-amniotically with saline or AFSC-EVs (isolated by ultracentrifugation, characterized as per MISEV guidelines). Fetuses from vehicle-gavaged dams served as controls. Groups were compared for: lung hypoplasia, TNFa and IL-1B brain expression, and activated microglia (Iba1) density in the subgranular zone (SGZ). RESULTS CDH lungs had fewer airspaces compared to controls, whereas AFSC-EV-treated lungs had rescued branching morphogenesis. Fluorescently labeled AFSC-EVs injected intra-amniotically into CDH fetuses had fluorescent signal in the brain. Compared to controls, the brain of CDH fetuses had higher TNFa and IL-1B levels, and increased activated microglia density. Conversely, the brain of AFSC-EV treated fetuses had inflammatory marker expression levels and microglia density similar to controls. CONCLUSION This study shows that the brain of rat fetuses with CDH has signs of inflammation that are abated by the intra-amniotic administration of AFSC-EVs.
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Affiliation(s)
- Matisse Blundell
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, M5G 1X8, Canada
| | - Fabian Doktor
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, M5G 1X8, Canada
| | - Rebeca L Figueira
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, M5G 1X8, Canada
| | - Kasra Khalaj
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, M5G 1X8, Canada
| | - George Biouss
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, M5G 1X8, Canada
| | - Lina Antounians
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, Canada
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, M5G 1X8, Canada
| | - Augusto Zani
- Developmental and Stem Cell Biology Program, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, M5G 0A4, Canada.
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, M5G 1X8, Canada.
- Department of Surgery, University of Toronto, Toronto, M5T 1P5, Canada.
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5
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Dylong F, Riedel J, Amonkar GM, Peukert N, Lieckfeldt P, Sturm K, Höxter B, Tse WH, Miyake Y, Moormann M, Bode LM, Mayer S, Keijzer R, Lacher M, Ai X, Gosemann JH, Wagner R. Overactivated Epithelial NF-κB Disrupts Lung Development in Congenital Diaphragmatic Hernia. Am J Respir Cell Mol Biol 2023; 69:545-555. [PMID: 37552822 DOI: 10.1165/rcmb.2023-0138oc] [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] [Accepted: 08/08/2023] [Indexed: 08/10/2023] Open
Abstract
Abnormal lung development is the main cause of morbidity and mortality in neonates with congenital diaphragmatic hernia (CDH), a common birth defect (1:2,500) of largely unknown pathobiology. Recent studies discovered that inflammatory processes, and specifically NF-κB-associated pathways, are enriched in human and experimental CDH. However, the molecular signaling of NF-κB in abnormal CDH lung development and its potential as a therapeutic target require further investigation. Using sections and hypoplastic lung explant cultures from the nitrofen rat model of CDH and human fetal CDH lungs, we demonstrate that NF-κB and its downstream transcriptional targets are hyperactive during abnormal lung formation in CDH. NF-κB activity was especially elevated in the airway epithelium of nitrofen and human CDH lungs at different developmental stages. Fetal rat lung explants had impaired pseudoglandular airway branching after exposure to nitrofen, together with increased phosphorylation and transcriptional activity of NF-κB. Dexamethasone, the broad and clinically applicable antiinflammatory NF-κB antagonist, rescued lung branching and normalized NF-κB signaling in hypoplastic lung explants. Moreover, specific NF-κB inhibition with curcumenol similarly rescued ex vivo lung hypoplasia and restored NF-κB signaling. Last, we showed that prenatal intraperitoneal dexamethasone administration to pregnant rat dams carrying fetuses with hypoplastic lungs significantly improves lung branching and normalizes NF-κB in vivo. Our results indicate that NF-κB is aberrantly activated in human and nitrofen CDH lungs. Antiinflammatory treatment with dexamethasone and/or specific NF-κB inhibition should be investigated further as a therapeutic avenue to target lung hypoplasia in CDH.
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Affiliation(s)
- Florentine Dylong
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Jan Riedel
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Gaurang M Amonkar
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts; and
| | - Nicole Peukert
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Paula Lieckfeldt
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Katinka Sturm
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Benedikt Höxter
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Wai Hei Tse
- Department of Surgery
- Department of Pediatrics and Child Health, and
- Department of Physiology and Pathophysiology, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Yuichiro Miyake
- Department of Surgery
- Department of Pediatrics and Child Health, and
- Department of Physiology and Pathophysiology, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Maria Moormann
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Lena Marie Bode
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Steffi Mayer
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Richard Keijzer
- Department of Surgery
- Department of Pediatrics and Child Health, and
- Department of Physiology and Pathophysiology, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Martin Lacher
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Xingbin Ai
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts; and
| | | | - Richard Wagner
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts; and
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6
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Zhao C, Wang W, Bai Y, Amonkar G, Mou H, Olejnik J, Hume AJ, Mühlberger E, Fang Y, Que J, Fearns R, Ai X, Lerou PH. Age-related STAT3 signaling regulates severity of respiratory syncytial viral infection in human bronchial epithelial cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.20.558606. [PMID: 37781574 PMCID: PMC10541147 DOI: 10.1101/2023.09.20.558606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Respiratory syncytial virus (RSV) can cause severe disease especially in infants; however, mechanisms of age-associated disease severity remain elusive. Here, employing human bronchial epithelium models generated from tracheal aspirate-derived basal stem cells of neonates and adults, we investigated whether age regulates RSV-epithelium interaction to determine disease severity. We show that following RSV infection, only neonatal epithelium model exhibited cytopathy and mucus hyperplasia, and neonatal epithelium had more robust viral spread and inflammatory responses than adult epithelium. Mechanistically, RSV-infected neonatal ciliated cells displayed age-related impairment of STAT3 activation, rendering susceptibility to apoptosis, which facilitated viral spread. In contrast, SARS-CoV-2 infection of ciliated cells had no effect on STAT3 activation and was not affected by age. Taken together, our findings identify an age-related and RSV-specific interaction with neonatal bronchial epithelium that critically contributes to severity of infection, and STAT3 activation offers a potential strategy to battle severe RSV disease in infants.
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