1
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Reddy KD, Bizymi N, Schweikert A, Ananth S, Lim CX, Lodge KM, Joannes A, Ubags N, van der Does AM, Cloonan SM, Mailleux A, Mansouri N, Reynaert NL, Heijink IH, Cuevas-Ocaña S. ERS International Congress 2023: highlights from the Basic and Translational Sciences Assembly. ERJ Open Res 2024; 10:00875-2023. [PMID: 38686182 PMCID: PMC11057505 DOI: 10.1183/23120541.00875-2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 05/02/2024] Open
Abstract
Early career members of Assembly 3 (Basic and Translational Sciences) of the European Respiratory Society (ERS) summarise the key messages discussed during six selected sessions that took place at the ERS International Congress 2023 in Milan, Italy. Aligned with the theme of the congress, the first session covered is "Micro- and macro-environments and respiratory health", which is followed by a summary of the "Scientific year in review" session. Next, recent advances in experimental methodologies and new technologies are discussed from the "Tissue modelling and remodelling" session and a summary provided of the translational science session, "What did you always want to know about omics analyses for clinical practice?", which was organised as part of the ERS Translational Science initiative's aims. The "Lost in translation: new insights into cell-to-cell crosstalk in lung disease" session highlighted how next-generation sequencing can be integrated with laboratory methods, and a final summary of studies is presented from the "From the transcriptome landscape to innovative preclinical models in lung diseases" session, which links the transcriptome landscape with innovative preclinical models. The wide range of topics covered in the selected sessions and the high quality of the research discussed demonstrate the strength of the basic and translational science being presented at the international respiratory conference organised by the ERS.
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Affiliation(s)
- Karosham Diren Reddy
- Epigenetics of Chronic Lung Disease Group, Forschungszentrum Borstel Leibniz Lungenzentrum, Borstel, Germany
- Division of Pediatric Pneumology and Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany
- These authors contributed equally
| | - Nikoleta Bizymi
- Laboratory of Molecular and Cellular Pneumonology, School of Medicine, University of Crete, Heraklion, Greece
- These authors contributed equally
| | - Anja Schweikert
- Department of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
- These authors contributed equally
| | - Sachin Ananth
- London North West University Healthcare NHS Trust, London, UK
- These authors contributed equally
| | - Clarice X. Lim
- Institute of Medical Genetics, Center for Pathobiochemistry and Genetics, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Lung Health, Clinic Penzing, Vienna, Austria
- These authors contributed equally
| | - Katharine M. Lodge
- National Heart and Lung Institute, Imperial College London, London, UK
- These authors contributed equally
| | - Audrey Joannes
- Université de Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) – UMR_S 1085, Rennes, France
| | - Niki Ubags
- Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Anne M. van der Does
- PulmoScience Lab, Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Suzanne M. Cloonan
- School of Medicine, Trinity Biosciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Arnaud Mailleux
- Université Paris Cité, Inserm, Physiopathologie et épidémiologie des maladies respiratoires, Paris, France
| | - Nahal Mansouri
- Division of Pulmonary Medicine, Department of Medicine, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Niki L. Reynaert
- Department of Respiratory Medicine and School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Irene H. Heijink
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Department of Pulmonary Diseases, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
| | - Sara Cuevas-Ocaña
- Biodiscovery Institute, Translational Medical Sciences, School of Medicine, University of Nottingham, Nottingham, UK
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2
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Fan LC, McConn K, Plataki M, Kenny S, Williams NC, Kim K, Quirke JA, Chen Y, Sauler M, Möbius ME, Chung KP, Area Gomez E, Choi AM, Xu JF, Cloonan SM. Alveolar type II epithelial cell FASN maintains lipid homeostasis in experimental COPD. JCI Insight 2023; 8:e163403. [PMID: 37606038 PMCID: PMC10543729 DOI: 10.1172/jci.insight.163403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 07/10/2023] [Indexed: 08/23/2023] Open
Abstract
Alveolar epithelial type II (AEC2) cells strictly regulate lipid metabolism to maintain surfactant synthesis. Loss of AEC2 cell function and surfactant production are implicated in the pathogenesis of the smoking-related lung disease chronic obstructive pulmonary disease (COPD). Whether smoking alters lipid synthesis in AEC2 cells and whether altering lipid metabolism in AEC2 cells contributes to COPD development are unclear. In this study, high-throughput lipidomic analysis revealed increased lipid biosynthesis in AEC2 cells isolated from mice chronically exposed to cigarette smoke (CS). Mice with a targeted deletion of the de novo lipogenesis enzyme, fatty acid synthase (FASN), in AEC2 cells (FasniΔAEC2) exposed to CS exhibited higher bronchoalveolar lavage fluid (BALF) neutrophils, higher BALF protein, and more severe airspace enlargement. FasniΔAEC2 mice exposed to CS had lower levels of key surfactant phospholipids but higher levels of BALF ether phospholipids, sphingomyelins, and polyunsaturated fatty acid-containing phospholipids, as well as increased BALF surface tension. FasniΔAEC2 mice exposed to CS also had higher levels of protective ferroptosis markers in the lung. These data suggest that AEC2 cell FASN modulates the response of the lung to smoke by regulating the composition of the surfactant phospholipidome.
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Affiliation(s)
- Li-Chao Fan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Keith McConn
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Maria Plataki
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- NewYork-Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Sarah Kenny
- School of Medicine, Trinity Biomedical Sciences Institute, and
| | | | - Kihwan Kim
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | | | - Yan Chen
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Maor Sauler
- Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Kuei-Pin Chung
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Department of Laboratory Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Estela Area Gomez
- Division of Neuromuscular Medicine, Department of Neurology, Columbia University Irving Medical Center, Neurological Institute, New York, New York, USA
- Center for Biological Research “Margarita Salas”, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - 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, USA
- NewYork-Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Jin-Fu Xu
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Suzanne M. Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- School of Medicine, Trinity Biomedical Sciences Institute, and
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3
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Salih MM, Robinson EK, Malekos E, Perez E, Capili A, Kim K, Zhang WZ, Cloonan SM, Carpenter S. LincRNA-Cox2 Regulates Smoke-induced Inflammation in Murine Macrophages. Am J Respir Cell Mol Biol 2023; 68:511-522. [PMID: 36657060 DOI: 10.1165/rcmb.2022-0413oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 01/19/2023] [Indexed: 01/20/2023] Open
Abstract
Cigarette smoke (CS) exposure is a risk factor for many chronic diseases, including chronic obstructive pulmonary disease, but the mechanism by which smoke exposure can alter homeostasis and bring about chronic inflammation is poorly understood. Here, we showcase a novel role for smoke in regulating long noncoding RNAs, showing that it activates lincRNA-Cox2, which we previously characterized as functional in inflammatory regulation. Exposing lincRNA-Cox2 murine models to smoke in vivo confirmed lincRNA-Cox2 as a regulator of inflammatory gene expression in response to smoke both systemically and within the lung. We also report that lincRNA-Cox2 negatively regulates genes in smoked bone marrow-derived macrophages exposed to LPS stimulation. In addition to the effects on long noncoding RNAs, we also report dysregulated transcription and splicing of inflammatory protein-coding genes in the bone marrow niche after CS exposure in vivo. Collectively, this work provides insights into how innate immune signaling from gene expression to splicing is altered after in vivo exposure to CS and highlights an important new role for lincRNA-Cox2 in regulating immune genes after smoke exposure.
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Affiliation(s)
- Mays Mohammed Salih
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, California
| | - Elektra Kantzari Robinson
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, California
| | - Eric Malekos
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, California
| | - Elizabeth Perez
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York; and
| | - Allyson Capili
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York; and
| | - Kihwan Kim
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York; and
| | - William Z Zhang
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York; and
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York; and
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College, Dublin, Ireland
| | - Susan Carpenter
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, California
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4
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Kim K, Zhang WZ, Kikkers SA, O’Beirne SL, Strulovici-Barel Y, Kaner RJ, Crystal RG, Cloonan SM. Use of the Iron Chelator Deferiprone to Restore Function in BAL Fluid Macrophages in Smoking and Chronic Obstructive Pulmonary Disease. Am J Respir Cell Mol Biol 2023; 68:458-462. [PMID: 37000441 PMCID: PMC10112420 DOI: 10.1165/rcmb.2022-0372le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023] Open
Affiliation(s)
- Kihwan Kim
- Weill Cornell Medical CollegeNew York, New York
| | | | | | | | | | | | | | - Suzanne M. Cloonan
- Weill Cornell Medical CollegeNew York, New York
- Trinity College DublinDublin, Ireland
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5
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Cloonan SM. 'KEAP'ing Alveolar Macrophage Mitochondria Content in COPD. Am J Respir Crit Care Med 2023; 207:962-964. [PMID: 36790378 PMCID: PMC10112437 DOI: 10.1164/rccm.202302-0200ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
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6
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Faherty L, Kenny S, Cloonan SM. Iron and mitochondria in the susceptibility, pathogenesis and progression of COPD. Clin Sci (Lond) 2023; 137:219-237. [PMID: 36729089 DOI: 10.1042/cs20210504] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/22/2022] [Accepted: 01/04/2023] [Indexed: 02/03/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a debilitating lung disease characterised by airflow limitation, chronic bronchitis, emphysema and airway remodelling. Cigarette smoke is considered the primary risk factor for the development of COPD; however, genetic factors, host responses and infection also play an important role. Accumulating evidence highlights a role for iron dyshomeostasis and cellular iron accumulation in the lung as a key contributing factor in the development and pathogenesis of COPD. Recent studies have also shown that mitochondria, the central players in cellular iron utilisation, are dysfunctional in respiratory cells in individuals with COPD, with alterations in mitochondrial bioenergetics and dynamics driving disease progression. Understanding the molecular mechanisms underlying the dysfunction of mitochondria and cellular iron metabolism in the lung may unveil potential novel investigational avenues and therapeutic targets to aid in the treatment of COPD.
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Affiliation(s)
- Lynne Faherty
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
| | - Sarah Kenny
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
| | - Suzanne M Cloonan
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, New York, NY, U.S.A
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7
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Ocaña SC, El-Merhie N, Kuipers ME, Lehmann M, Enes SR, Voss C, Dean LSN, Loxham M, Boots AW, Cloonan SM, Greene CM, Heijink IH, Joannes A, Mailleux AA, Mansouri N, Reynaert NL, van der Does AM, Wagner DE, Ubags N. ERS international Congress 2022: highlights from the Basic and Translational Science Assembly. ERJ Open Res 2023; 9:00561-2022. [PMID: 37077558 PMCID: PMC10107060 DOI: 10.1183/23120541.00561-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 12/29/2022] [Indexed: 01/27/2023] Open
Abstract
In this review the Basic and Translational Science Assembly of the European Respiratory Society (ERS) provides an overview of the 2022 international conference highlights. We discuss the consequences of respiratory events from birth until old age regarding climate change-related alterations in air quality due to pollution caused by increased ozone, pollen, wildfires and fuel combustion as well as the increasing presence of microplastic and microfibres. Early life events such as the effect of hyperoxia in the context of bronchopulmonary dysplasia and crucial effects of the intrauterine environment in the context of preeclampsia were discussed. The Human Lung Cell Atlas (HLCA) was put forward as a new point of reference for healthy human lungs. The combination of single-cell RNA-sequencing and spatial data in the HLCA has enabled the discovery of new cell types/states, new niches and served as a platform that facilitates further investigation of mechanistic perturbations. The role of cell death modalities in regulating the onset and progression of chronic lung diseases and its potential as a therapeutic target was also discussed. Translational studies identified novel therapeutic targets and immunoregulatory mechanisms in asthma. Lastly, it was highlighted that the choice of regenerative therapeutic depends on disease severity, ranging from transplantation to cell therapies and regenerative pharmacology.
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8
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Cloonan SM. OLA1 Phosphorylation: A Distress Signal from Damaged Endothelial Mitochondria? Am J Respir Cell Mol Biol 2022; 68:347-348. [PMID: 36542855 PMCID: PMC10112430 DOI: 10.1165/rcmb.2022-0450ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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9
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Cui Y, Gutierrez S, Ariai S, Öberg L, Thörn K, Gehrmann U, Cloonan SM, Naessens T, Olsson H. Non-heme iron overload impairs monocyte to macrophage differentiation via mitochondrial oxidative stress. Front Immunol 2022; 13:998059. [PMID: 36341326 PMCID: PMC9634638 DOI: 10.3389/fimmu.2022.998059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/05/2022] [Indexed: 11/17/2022] Open
Abstract
Iron is a key element for systemic oxygen delivery and cellular energy metabolism. Thus regulation of systemic and local iron metabolism is key for maintaining energy homeostasis. Significant changes in iron levels due to malnutrition or hemorrhage, have been associated with several diseases such as hemochromatosis, liver cirrhosis and COPD. Macrophages are key cells in regulating iron levels in tissues as they sequester excess iron. How iron overload affects macrophage differentiation and function remains a subject of debate. Here we used an in vitro model of monocyte-to-macrophage differentiation to study the effect of iron overload on macrophage function. We found that providing excess iron as soluble ferric ammonium citrate (FAC) rather than as heme-iron complexes derived from stressed red blood cells (sRBC) interferes with macrophage differentiation and phagocytosis. Impaired macrophage differentiation coincided with increased expression of oxidative stress-related genes. Addition of FAC also led to increased levels of cellular and mitochondrial reactive oxygen species (ROS) and interfered with mitochondrial function and ATP generation. The effects of iron overload were reproduced by the mitochondrial ROS-inducer rotenone while treatment with the ROS-scavenger N-Acetylcysteine partially reversed FAC-induced effects. Finally, we found that iron-induced oxidative stress interfered with upregulation of M-CSFR and MAFB, two crucial determinants of macrophage differentiation and function. In summary, our findings suggest that high levels of non-heme iron interfere with macrophage differentiation by inducing mitochondrial oxidative stress. These findings might be important to consider in the context of diseases like chronic obstructive pulmonary disease (COPD) where both iron overload and defective macrophage function have been suggested to play a role in disease pathogenesis.
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Affiliation(s)
- Yue Cui
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
- *Correspondence: Yue Cui, ; Saray Gutierrez,
| | - Saray Gutierrez
- Bioscience Cardiovascular, Early Cardiovascular, Renal and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
- *Correspondence: Yue Cui, ; Saray Gutierrez,
| | - Sheller Ariai
- Early Product Development, Pharmaceutical Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Lisa Öberg
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Kristofer Thörn
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Ulf Gehrmann
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Suzanne M. Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY, United States
- School of Medicine, Trinity Biomedical Sciences Institute and Tallaght University Hospital, Trinity College Dublin, Dublin, Ireland
| | - Thomas Naessens
- Bioscience Cough & In vivo, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Henric Olsson
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
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10
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Williams NC, Ryan DG, Costa ASH, Mills EL, Jedrychowski MP, Cloonan SM, Frezza C, O'Neill LA. Signalling metabolite L-2-hydroxyglutarate activates the transcription factor HIF-1α in lipopolysaccharide-activated macrophages. J Biol Chem 2021; 298:101501. [PMID: 34929172 PMCID: PMC8784330 DOI: 10.1016/j.jbc.2021.101501] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 12/09/2021] [Indexed: 11/16/2022] Open
Abstract
Activated macrophages undergo metabolic reprogramming, which not only supports their energetic demands but also allows for the production of specific metabolites that function as signaling molecules. Several Krebs cycles, or Krebs-cycle-derived metabolites, including succinate, α-ketoglutarate, and itaconate, have recently been shown to modulate macrophage function. The accumulation of 2-hydroxyglutarate (2HG) has also been well documented in transformed cells and more recently shown to play a role in T cell and dendritic cell function. Here we have found that the abundance of both enantiomers of 2HG is increased in LPS-activated macrophages. We show that L-2HG, but not D-2HG, can promote the expression of the proinflammatory cytokine IL-1β and the adoption of an inflammatory, highly glycolytic metabolic state. These changes are likely mediated through activation of the transcription factor hypoxia-inducible factor-1α (HIF-1α) by L-2HG, a known inhibitor of the HIF prolyl hydroxylases. Expression of the enzyme responsible for L-2HG degradation, L-2HG dehydrogenase (L-2HGDH), was also found to be decreased in LPS-stimulated macrophages and may therefore also contribute to L-2HG accumulation. Finally, overexpression of L-2HGDH in HEK293 TLR4/MD2/CD14 cells inhibited HIF-1α activation by LPS, while knockdown of L-2HGDH in macrophages boosted the induction of HIF-1α-dependent genes, as well as increasing LPS-induced HIF-1α activity. Taken together, this study therefore identifies L-2HG as a metabolite that can regulate HIF-1α in macrophages.
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Affiliation(s)
- Niamh C Williams
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland; School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin; Tallaght University Hospital, Dublin, Ireland
| | - Dylan G Ryan
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Ana S H Costa
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Cambridge Biomedical Campus, Cambridge, UK
| | - Evanna L Mills
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Cell Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Mark P Jedrychowski
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA; Department of Cell Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Suzanne M Cloonan
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin; Tallaght University Hospital, Dublin, Ireland; Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, USA
| | - Christian Frezza
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Cambridge Biomedical Campus, Cambridge, UK
| | - Luke A O'Neill
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.
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11
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Ramchandani D, Berisa M, Tavarez DA, Li Z, Miele M, Bai Y, Lee SB, Ban Y, Dephoure N, Hendrickson RC, Cloonan SM, Gao D, Cross JR, Vahdat LT, Mittal V. Copper depletion modulates mitochondrial oxidative phosphorylation to impair triple negative breast cancer metastasis. Nat Commun 2021; 12:7311. [PMID: 34911956 PMCID: PMC8674260 DOI: 10.1038/s41467-021-27559-z] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 11/05/2021] [Indexed: 12/26/2022] Open
Abstract
Copper serves as a co-factor for a host of metalloenzymes that contribute to malignant progression. The orally bioavailable copper chelating agent tetrathiomolybdate (TM) has been associated with a significant survival benefit in high-risk triple negative breast cancer (TNBC) patients. Despite these promising data, the mechanisms by which copper depletion impacts metastasis are poorly understood and this remains a major barrier to advancing TM to a randomized phase II trial. Here, using two independent TNBC models, we report a discrete subpopulation of highly metastatic SOX2/OCT4+ cells within primary tumors that exhibit elevated intracellular copper levels and a marked sensitivity to TM. Global proteomic and metabolomic profiling identifies TM-mediated inactivation of Complex IV as the primary metabolic defect in the SOX2/OCT4+ cell population. We also identify AMPK/mTORC1 energy sensor as an important downstream pathway and show that AMPK inhibition rescues TM-mediated loss of invasion. Furthermore, loss of the mitochondria-specific copper chaperone, COX17, restricts copper deficiency to mitochondria and phenocopies TM-mediated alterations. These findings identify a copper-metabolism-metastasis axis with potential to enrich patient populations in next-generation therapeutic trials.
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Affiliation(s)
- Divya Ramchandani
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Mirela Berisa
- Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Diamile A Tavarez
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Zhuoning Li
- Department of Microchemistry and Proteomics, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Matthew Miele
- Department of Microchemistry and Proteomics, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Yang Bai
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Sharrell B Lee
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Yi Ban
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Noah Dephoure
- Department of Biochemistry, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Ronald C Hendrickson
- Department of Microchemistry and Proteomics, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Suzanne M Cloonan
- Department of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
- The School of Medicine and Tallaght University Hospital, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Dingcheng Gao
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, 10065, USA
- Department of Cell and Developmental biology, Weill Cornell Medicine, New York, NY, 10065, USA
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Justin R Cross
- Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Linda T Vahdat
- Department of Medicine, Breast Medicine Service, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA.
| | - Vivek Mittal
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY, 10065, USA.
- Department of Cell and Developmental biology, Weill Cornell Medicine, New York, NY, 10065, USA.
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, 10065, USA.
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12
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Hisata S, Racanelli AC, Kermani P, Schreiner R, Houghton S, Palikuqi B, Kunar B, Zhou A, McConn K, Capili A, Redmond D, Nolan DJ, Ginsberg M, Ding BS, Martinez FJ, Scandura JM, Cloonan SM, Rafii S, Choi AM. Reversal of emphysema by restoration of pulmonary endothelial cells. J Exp Med 2021; 218:e20200938. [PMID: 34287647 PMCID: PMC8298104 DOI: 10.1084/jem.20200938] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 12/03/2020] [Accepted: 05/17/2021] [Indexed: 12/11/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is marked by airway inflammation and airspace enlargement (emphysema) leading to airflow obstruction and eventual respiratory failure. Microvasculature dysfunction is associated with COPD/emphysema. However, it is not known if abnormal endothelium drives COPD/emphysema pathology and/or if correcting endothelial dysfunction has therapeutic potential. Here, we show the centrality of endothelial cells to the pathogenesis of COPD/emphysema in human tissue and using an elastase-induced murine model of emphysema. Airspace disease showed significant endothelial cell loss, and transcriptional profiling suggested an apoptotic, angiogenic, and inflammatory state. This alveolar destruction was rescued by intravenous delivery of healthy lung endothelial cells. Leucine-rich α-2-glycoprotein-1 (LRG1) was a driver of emphysema, and deletion of Lrg1 from endothelial cells rescued vascular rarefaction and alveolar regression. Hence, targeting endothelial cell biology through regenerative methods and/or inhibition of the LRG1 pathway may represent strategies of immense potential for the treatment of COPD/emphysema.
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Affiliation(s)
- Shu Hisata
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
- Division of Pulmonary Medicine, Department of Medicine, Jichi Medical University, Shimotsuke, Japan
| | - Alexandra C. Racanelli
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
- New York Presbyterian Hospital/Weill Cornell Medical Center, New York, NY
| | - Pouneh Kermani
- Division of Hematology/Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Ryan Schreiner
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Sean Houghton
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Brisa Palikuqi
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Balvir Kunar
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Aiyuan Zhou
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
- Department of Respiratory and Critical Care Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Keith McConn
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Allyson Capili
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - David Redmond
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | | | | | - Bi-Sen Ding
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Fernando J. Martinez
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Joseph M. Scandura
- Division of Hematology/Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Suzanne M. Cloonan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland and Tallaght University Hospital, Dublin, Ireland
| | - Shahin Rafii
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Augustine M.K. Choi
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY
- New York Presbyterian Hospital/Weill Cornell Medical Center, New York, NY
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13
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Robinson EK, Jagannatha P, Covarrubias S, Cattle M, Smaliy V, Safavi R, Shapleigh B, Abu-Shumays R, Jain M, Cloonan SM, Akeson M, Brooks AN, Carpenter S. Inflammation drives alternative first exon usage to regulate immune genes including a novel iron-regulated isoform of Aim2. eLife 2021; 10:69431. [PMID: 34047695 PMCID: PMC8260223 DOI: 10.7554/elife.69431] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/21/2021] [Indexed: 12/11/2022] Open
Abstract
Determining the layers of gene regulation within the innate immune response is critical to our understanding of the cellular responses to infection and dysregulation in disease. We identified a conserved mechanism of gene regulation in human and mouse via changes in alternative first exon (AFE) usage following inflammation, resulting in changes to the isoforms produced. Of these AFE events, we identified 95 unannotated transcription start sites in mice using a de novo transcriptome generated by long-read native RNA-sequencing, one of which is in the cytosolic receptor for dsDNA and known inflammatory inducible gene, Aim2. We show that this unannotated AFE isoform of Aim2 is the predominant isoform expressed during inflammation and contains an iron-responsive element in its 5′UTR enabling mRNA translation to be regulated by iron levels. This work highlights the importance of examining alternative isoform changes and translational regulation in the innate immune response and uncovers novel regulatory mechanisms of Aim2.
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Affiliation(s)
- Elektra K Robinson
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, United States
| | - Pratibha Jagannatha
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, United States.,Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, United States
| | - Sergio Covarrubias
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, United States
| | - Matthew Cattle
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, United States
| | - Valeriya Smaliy
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, United States
| | - Rojin Safavi
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, United States
| | - Barbara Shapleigh
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, United States
| | - Robin Abu-Shumays
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, United States
| | - Miten Jain
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, United States
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, United States
| | - Mark Akeson
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, United States
| | - Angela N Brooks
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, United States
| | - Susan Carpenter
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, United States
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14
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Zhang WZ, Hoffman KL, Schiffer KT, Oromendia C, Rice MC, Barjaktarevic I, Peters SP, Putcha N, Bowler RP, Wells JM, Couper DJ, Labaki WW, Curtis JL, Han MK, Paine R, Woodruff PG, Criner GJ, Hansel NN, Diaz I, Ballman KV, Nakahira K, Choi ME, Martinez FJ, Choi AMK, Cloonan SM. Association of plasma mitochondrial DNA with COPD severity and progression in the SPIROMICS cohort. Respir Res 2021; 22:126. [PMID: 33902556 PMCID: PMC8074408 DOI: 10.1186/s12931-021-01707-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND There is a lack of mechanism-driven, clinically relevant biomarkers in chronic obstructive pulmonary disease (COPD). Mitochondrial dysfunction, a proposed disease mechanism in COPD, is associated with the release of mitochondrial DNA (mtDNA), but plasma cell-free mtDNA has not been previously examined prospectively for associations with clinical COPD measures. METHODS P-mtDNA, defined as copy number of mitochondrially-encoded NADH dehydrogenase-1 (MT-ND1) gene, was measured by real-time quantitative PCR in 700 plasma samples from participants enrolled in the Subpopulations and Intermediate Outcome Measures in COPD Study (SPIROMICS) cohort. Associations between p-mtDNA and clinical disease parameters were examined, adjusting for age, sex, smoking status, and for informative loss to follow-up. RESULTS P-mtDNA levels were higher in participants with mild or moderate COPD, compared to smokers without airflow obstruction, and to participants with severe COPD. Baseline increased p-mtDNA levels were associated with better CAT scores in female smokers without airflow obstruction and female participants with mild or moderate COPD on 1-year follow-up, but worse 6MWD in females with severe COPD. Higher p-mtDNA levels were associated with better 6MWD in male participants with severe COPD. These associations were no longer significant after adjusting for informative loss to follow-up. CONCLUSION In this study, p-mtDNA levels associated with baseline COPD status but not future changes in clinical COPD measures after accounting for informative loss to follow-up. To better characterize mitochondrial dysfunction as a potential COPD endotype, these results should be confirmed and validated in future studies. TRIAL REGISTRATION ClinicalTrials.gov NCT01969344 (SPIROMICS).
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Affiliation(s)
- William Z Zhang
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Weill Cornell Medicine, New York-Presbyterian Hospital, New York, NY, USA
| | - Katherine L Hoffman
- Department of Population Health Science, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, NY, USA
| | - Kristen T Schiffer
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Clara Oromendia
- Department of Population Health Science, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, NY, USA
| | - Michelle C Rice
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Igor Barjaktarevic
- Division of Pulmonary and Critical Care Medicine, University of California Los Angeles Medical Center, Los Angeles, CA, USA
| | - Stephen P Peters
- Pulmonary, Critical Care, Allergy, and Immunologic Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Nirupama Putcha
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Russell P Bowler
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health, Denver, CO, USA
| | | | - David J Couper
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Wassim W Labaki
- Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, Ann Arbor, MI, USA
| | - Jeffrey L Curtis
- Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, Ann Arbor, MI, USA
| | - Meilan K Han
- Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, Ann Arbor, MI, USA
| | - Robert Paine
- Section of Pulmonary and Critical Care Medicine, Salt Lake City Department of Veterans Affairs Medical Center, Salt Lake City, UT, USA
| | | | - Gerard J Criner
- Department of Pulmonary & Critical Care Medicine, Temple University, Philadelphia, PA, USA
| | - Nadia N Hansel
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ivan Diaz
- Department of Population Health Science, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, NY, USA
| | - Karla V Ballman
- Department of Population Health Science, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, NY, USA
| | - Kiichi Nakahira
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Mary E Choi
- Weill Cornell Medicine, New York-Presbyterian Hospital, New York, NY, USA
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Fernando J Martinez
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Weill Cornell Medicine, New York-Presbyterian Hospital, New York, NY, USA
| | - Augustine M K Choi
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Weill Cornell Medicine, New York-Presbyterian Hospital, New York, NY, USA
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA.
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland and Tallaght University Hospital, Dublin, Ireland.
- Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, USA.
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15
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Lam HC, Cloonan SM, Bhashyam AR, Haspel JA, Singh A, Sathirapongsasuti JF, Cervo M, Yao H, Chung AL, Mizumura K, An CH, Shan B, Franks JM, Haley KJ, Owen CA, Tesfaigzi Y, Washko GR, Quackenbush J, Silverman EK, Rahman I, Kim HP, Mahmood A, Biswal SS, Ryter SW, Choi AM. Histone deacetylase 6-mediated selective autophagy regulates COPD-associated cilia dysfunction. J Clin Invest 2020; 130:6189. [PMID: 33136096 DOI: 10.1172/jci143863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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16
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Cloonan SM, Kim K, Esteves P, Trian T, Barnes PJ. Mitochondrial dysfunction in lung ageing and disease. Eur Respir Rev 2020; 29:29/157/200165. [PMID: 33060165 DOI: 10.1183/16000617.0165-2020] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 09/25/2020] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial biology has seen a surge in popularity in the past 5 years, with the emergence of numerous new avenues of exciting mitochondria-related research including immunometabolism, mitochondrial transplantation and mitochondria-microbe biology. Since the early 1960s mitochondrial dysfunction has been observed in cells of the lung in individuals and in experimental models of chronic and acute respiratory diseases. However, it is only in the past decade with the emergence of more sophisticated tools and methodologies that we are beginning to understand how this enigmatic organelle regulates cellular homeostasis and contributes to disease processes in the lung. In this review, we highlight the diverse role of mitochondria in individual lung cell populations and what happens when these essential organelles become dysfunctional with ageing and in acute and chronic lung disease. Although much remains to be uncovered, we also discuss potential targeted therapeutics for mitochondrial dysfunction in the ageing and diseased lung.
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Affiliation(s)
- Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Dept of Medicine, New York, NY, USA.,School of Medicine, Trinity College Dublin and Tallaght University Hospital, Dublin, Ireland
| | - Kihwan Kim
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Dept of Medicine, New York, NY, USA
| | - Pauline Esteves
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Dépt de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Thomas Trian
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Dépt de Pharmacologie, CIC 1401, Bordeaux, France.,INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Peter J Barnes
- National Heart and Lung Institute, Imperial College, London, UK
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17
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Perez E, Baker JR, Di Giandomenico S, Kermani P, Parker J, Kim K, Yang J, Barnes PJ, Vaulont S, Scandura JM, Donnelly LE, Stout-Delgado H, Cloonan SM. Hepcidin Is Essential for Alveolar Macrophage Function and Is Disrupted by Smoke in a Murine Chronic Obstructive Pulmonary Disease Model. J Immunol 2020; 205:2489-2498. [PMID: 32958690 DOI: 10.4049/jimmunol.1901284] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 08/31/2020] [Indexed: 12/21/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a debilitating lung disease associated with cigarette smoking. Alterations in local lung and systemic iron regulation are associated with disease progression and pathogenesis. Hepcidin, an iron regulatory peptide hormone, is altered in subjects with COPD; however, the molecular role of hepcidin in COPD pathogenesis remains to be determined. In this study, using a murine model of smoke-induced COPD, we demonstrate that lung and circulating hepcidin levels are inhibited by cigarette smoke. We show that cigarette smoke exposure increases erythropoietin and bone marrow-derived erythroferrone and leads to expanded but inefficient erythropoiesis in murine bone marrow and an increase in ferroportin on alveolar macrophages (AMs). AMs from smokers and subjects with COPD display increased expression of ferroportin as well as hepcidin. Notably, murine AMs exposed to smoke fail to increase hepcidin in response to Gram-negative or Gram-positive infection. Loss of hepcidin in vivo results in blunted functional responses of AMs and exaggerated responses to Streptococcus pneumoniae infection.
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Affiliation(s)
- Elizabeth Perez
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065
| | - Jonathan R Baker
- Airway Disease Section, National Heart and Lung Institute, Imperial College London and Royal Brompton Hospital, London SW3 6NP, United Kingdom
| | - Silvana Di Giandomenico
- Division of Hematology and Oncology, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065
| | - Pouneh Kermani
- Division of Hematology and Oncology, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065
| | - Jacqueline Parker
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065.,New York-Presbyterian Hospital, Weill Cornell Medicine, New York, NY 10065
| | - Kihwan Kim
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065
| | - Jianjun Yang
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065
| | - Peter J Barnes
- Airway Disease Section, National Heart and Lung Institute, Imperial College London and Royal Brompton Hospital, London SW3 6NP, United Kingdom
| | - Sophie Vaulont
- Université de Paris, INSERM U1016, Institut Cochin, CNRS UMR8104, 75014 Paris, France.,Laboratory of Excellence GR-Ex, 75015 Paris, France; and
| | - Joseph M Scandura
- Division of Hematology and Oncology, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065.,New York-Presbyterian Hospital, Weill Cornell Medicine, New York, NY 10065
| | - Louise E Donnelly
- Airway Disease Section, National Heart and Lung Institute, Imperial College London and Royal Brompton Hospital, London SW3 6NP, United Kingdom
| | - Heather Stout-Delgado
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065; .,School of Medicine, Trinity College Dublin and Tallaght University Hospital, Dublin D24 NR04, Ireland
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18
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Zhang WZ, Oromendia C, Kikkers SA, Butler JJ, O'Beirne S, Kim K, O'Neal WK, Freeman CM, Christenson SA, Peters SP, Wells JM, Doerschuk C, Putcha N, Barjaktarevic I, Woodruff PG, Cooper CB, Bowler RP, Comellas AP, Criner GJ, Paine R, Hansel NN, Han MK, Crystal RG, Kaner RJ, Ballman KV, Curtis JL, Martinez FJ, Cloonan SM. Increased airway iron parameters and risk for exacerbation in COPD: an analysis from SPIROMICS. Sci Rep 2020; 10:10562. [PMID: 32601308 PMCID: PMC7324559 DOI: 10.1038/s41598-020-67047-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 06/02/2020] [Indexed: 12/12/2022] Open
Abstract
Levels of iron and iron-related proteins including ferritin are higher in the lung tissue and lavage fluid of individuals with chronic obstructive pulmonary disease (COPD), when compared to healthy controls. Whether more iron in the extracellular milieu of the lung associates with distinct clinical phenotypes of COPD, including increased exacerbation susceptibility, is unknown. We measured iron and ferritin levels in the bronchoalveolar lavage fluid (BALF) of participants enrolled in the SubPopulations and InteRmediate Outcome Measures In COPD (SPIROMICS) bronchoscopy sub-study (n = 195). BALF Iron parameters were compared to systemic markers of iron availability and tested for association with FEV1 % predicted and exacerbation frequency. Exacerbations were modelled using a zero-inflated negative binomial model using age, sex, smoking, and FEV1 % predicted as clinical covariates. BALF iron and ferritin were higher in participants with COPD and in smokers without COPD when compared to non-smoker control participants but did not correlate with systemic iron markers. BALF ferritin and iron were elevated in participants who had COPD exacerbations, with a 2-fold increase in BALF ferritin and iron conveying a 24% and 2-fold increase in exacerbation risk, respectively. Similar associations were not observed with plasma ferritin. Increased airway iron levels may be representative of a distinct pathobiological phenomenon that results in more frequent COPD exacerbation events, contributing to disease progression in these individuals.
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Affiliation(s)
- William Z Zhang
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- New York-Presbyterian Hospital, New York, New York, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Clara Oromendia
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- Department of Population Health Sciences, Division of Biostatistics, Weill Cornell Medicine, New York, New York, USA
| | - Sarah Ann Kikkers
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
| | - James J Butler
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
| | - Sarah O'Beirne
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- Department of Genetic Medicine, Weill Cornell Medicine, New York, New York, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Kihwan Kim
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
| | - Wanda K O'Neal
- University of North Carolina Marsico Lung Institute, Chapel Hill, North Carolina, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Christine M Freeman
- Pulmonary and Critical Care Medicine Division, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Stephanie A Christenson
- University of California at San Francisco, San Francisco, California, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Stephen P Peters
- Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - J Michael Wells
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama, UK
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Claire Doerschuk
- University of North Carolina Marsico Lung Institute, Chapel Hill, North Carolina, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Nirupama Putcha
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Igor Barjaktarevic
- Division of Pulmonary and Critical Care Medicine, University of California Los Angeles Medical Center, Los Angeles, California, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Prescott G Woodruff
- University of California at San Francisco, San Francisco, California, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Christopher B Cooper
- Division of Pulmonary and Critical Care Medicine, University of California Los Angeles Medical Center, Los Angeles, California, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Russell P Bowler
- University of Colorado School of Medicine, Aurora, Colorado, USA
- National Jewish Health, Denver, Colorado, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Alejandro P Comellas
- Division of Pulmonary and Critical Care, University of Iowa, Iowa City, Iowa, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Gerard J Criner
- Department of Pulmonary & Critical Care Medicine, Temple University, Philadelphia, Pennsylvania, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Robert Paine
- Section of Pulmonary and Critical Care Medicine, Salt Lake City Department of Veterans Affairs Medical Center, Salt Lake City, Utah, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Nadia N Hansel
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Meilan K Han
- Pulmonary and Critical Care Medicine Division, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Ronald G Crystal
- Department of Genetic Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Robert J Kaner
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- Department of Genetic Medicine, Weill Cornell Medicine, New York, New York, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Karla V Ballman
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- Department of Population Health Sciences, Division of Biostatistics, Weill Cornell Medicine, New York, New York, USA
| | - Jeffrey L Curtis
- Pulmonary and Critical Care Medicine Division, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Fernando J Martinez
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA
- New York-Presbyterian Hospital, New York, New York, USA
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA
| | - Suzanne M Cloonan
- Joan and Sanford I. Weill Department of Medicine, Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, USA.
- School of Medicine, Trinity Biomedical Sciences Institute and Tallaght University Hospital, Trinity College Dublin, Trinity, Ireland.
- SPIROMICS investigators, Collaborative Studies Coordinating Center, Department of Biostatistics Gillings School of Global Public Health, University of North Carolina at Chapel Hill 123 W. Franklin Street Suite 450, Chapel Hill, NC 27516, USA.
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19
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Affiliation(s)
- William Z Zhang
- Division of Pulmonary and Critical Care MedicineJoan and Sanford I. Weill Cornell MedicineNew York, New Yorkand
- New York-Presbyterian HospitalNew York, New York
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care MedicineJoan and Sanford I. Weill Cornell MedicineNew York, New Yorkand
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20
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Bessman NJ, Mathieu JRR, Renassia C, Zhou L, Fung TC, Fernandez KC, Austin C, Moeller JB, Zumerle S, Louis S, Vaulont S, Ajami NJ, Sokol H, Putzel GG, Arvedson T, Sockolow RE, Lakhal-Littleton S, Cloonan SM, Arora M, Peyssonnaux C, Sonnenberg GF. Dendritic cell-derived hepcidin sequesters iron from the microbiota to promote mucosal healing. Science 2020; 368:186-189. [PMID: 32273468 PMCID: PMC7724573 DOI: 10.1126/science.aau6481] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 08/22/2019] [Accepted: 02/11/2020] [Indexed: 01/03/2023]
Abstract
Bleeding and altered iron distribution occur in multiple gastrointestinal diseases, but the importance and regulation of these changes remain unclear. We found that hepcidin, the master regulator of systemic iron homeostasis, is required for tissue repair in the mouse intestine after experimental damage. This effect was independent of hepatocyte-derived hepcidin or systemic iron levels. Rather, we identified conventional dendritic cells (cDCs) as a source of hepcidin that is induced by microbial stimulation in mice, prominent in the inflamed intestine of humans, and essential for tissue repair. cDC-derived hepcidin acted on ferroportin-expressing phagocytes to promote local iron sequestration, which regulated the microbiota and consequently facilitated intestinal repair. Collectively, these results identify a pathway whereby cDC-derived hepcidin promotes mucosal healing in the intestine through means of nutritional immunity.
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Affiliation(s)
- Nicholas J Bessman
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (JRI), Weill Cornell Medicine, Cornell University, New York, NY, USA.,Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology and Hepatology, Weill Cornell Medicine, Cornell University, New York, NY, USA.,Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Jacques R R Mathieu
- Université de Paris, INSERM U1016, Institut Cochin, CNRS UMR8104, 75014 Paris, France.,Laboratory of Excellence GR-Ex, Paris, France
| | - Cyril Renassia
- Université de Paris, INSERM U1016, Institut Cochin, CNRS UMR8104, 75014 Paris, France.,Laboratory of Excellence GR-Ex, Paris, France
| | - Lei Zhou
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (JRI), Weill Cornell Medicine, Cornell University, New York, NY, USA.,Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology and Hepatology, Weill Cornell Medicine, Cornell University, New York, NY, USA.,Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Thomas C Fung
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (JRI), Weill Cornell Medicine, Cornell University, New York, NY, USA.,Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology and Hepatology, Weill Cornell Medicine, Cornell University, New York, NY, USA.,Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Keith C Fernandez
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (JRI), Weill Cornell Medicine, Cornell University, New York, NY, USA.,Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology and Hepatology, Weill Cornell Medicine, Cornell University, New York, NY, USA.,Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Christine Austin
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jesper B Moeller
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (JRI), Weill Cornell Medicine, Cornell University, New York, NY, USA.,Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology and Hepatology, Weill Cornell Medicine, Cornell University, New York, NY, USA.,Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY, USA.,Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Sara Zumerle
- Université de Paris, INSERM U1016, Institut Cochin, CNRS UMR8104, 75014 Paris, France.,Laboratory of Excellence GR-Ex, Paris, France
| | - Sabine Louis
- Université de Paris, INSERM U1016, Institut Cochin, CNRS UMR8104, 75014 Paris, France.,Laboratory of Excellence GR-Ex, Paris, France
| | - Sophie Vaulont
- Université de Paris, INSERM U1016, Institut Cochin, CNRS UMR8104, 75014 Paris, France.,Laboratory of Excellence GR-Ex, Paris, France
| | | | - Harry Sokol
- Sorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint Antoine, Service de Gastroenterologie, F-75012 Paris, France
| | - Gregory G Putzel
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (JRI), Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Tara Arvedson
- Department of Oncology Research, Amgen Inc., Thousand Oaks, CA, USA
| | - Robbyn E Sockolow
- Department of Pediatrics, Division of Gastroenterology and Nutrition, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | | | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, Cornell University, New York, NY, USA.,Trinity College Dublin, Dublin, Ireland
| | - Manish Arora
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Carole Peyssonnaux
- Université de Paris, INSERM U1016, Institut Cochin, CNRS UMR8104, 75014 Paris, France. .,Laboratory of Excellence GR-Ex, Paris, France
| | - Gregory F Sonnenberg
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (JRI), Weill Cornell Medicine, Cornell University, New York, NY, USA. .,Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology and Hepatology, Weill Cornell Medicine, Cornell University, New York, NY, USA.,Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY, USA
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21
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O’Beirne SL, Kikkers SA, Oromendia C, Salit J, Rostmai MR, Ballman KV, Kaner RJ, Crystal RG, Cloonan SM. Alveolar Macrophage Immunometabolism and Lung Function Impairment in Smoking and Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2020; 201:735-739. [PMID: 31751151 PMCID: PMC7068819 DOI: 10.1164/rccm.201908-1683le] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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22
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Zhang WZ, Rice MC, Hoffman KL, Oromendia C, Barjaktarevic IZ, Wells JM, Hastie AT, Labaki WW, Cooper CB, Comellas AP, Criner GJ, Krishnan JA, Paine R, Hansel NN, Bowler RP, Barr RG, Peters SP, Woodruff PG, Curtis JL, Han MK, Ballman KV, Martinez FJ, Choi AM, Nakahira K, Cloonan SM, Choi ME. Association of urine mitochondrial DNA with clinical measures of COPD in the SPIROMICS cohort. JCI Insight 2020; 5:133984. [PMID: 31895696 DOI: 10.1172/jci.insight.133984] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 12/26/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUNDMitochondrial dysfunction, a proposed mechanism of chronic obstructive pulmonary disease (COPD) pathogenesis, is associated with the leakage of mitochondrial DNA (mtDNA), which may be detected extracellularly in various bodily fluids. Despite evidence for the increased prevalence of chronic kidney disease in COPD subjects and for mitochondrial dysfunction in the kidneys of murine COPD models, whether urine mtDNA (u-mtDNA) associates with measures of disease severity in COPD is unknown.METHODSCell-free u-mtDNA, defined as copy number of mitochondrially encoded NADH dehydrogenase-1 (MTND1) gene, was measured by quantitative PCR and normalized to urine creatinine in cell-free urine samples from participants in the Subpopulations and Intermediate Outcome Measures in COPD Study (SPIROMICS) cohort. Urine albumin/creatinine ratios (UACR) were measured in the same samples. Associations between u-mtDNA, UACR, and clinical disease parameters - including FEV1 % predicted, clinical measures of exercise tolerance, respiratory symptom burden, and chest CT measures of lung structure - were examined.RESULTSU-mtDNA and UACR levels were measured in never smokers (n = 64), smokers without airflow obstruction (n = 109), participants with mild/moderate COPD (n = 142), and participants with severe COPD (n = 168). U-mtDNA was associated with increased respiratory symptom burden, especially among smokers without COPD. Significant sex differences in u-mtDNA levels were observed, with females having higher u-mtDNA levels across all study subgroups. U-mtDNA associated with worse spirometry and CT emphysema in males only and with worse respiratory symptoms in females only. Similar associations were not found with UACR.CONCLUSIONU-mtDNA levels may help to identify distinct clinical phenotypes and underlying pathobiological differences in males versus females with COPD.TRIAL REGISTRATIONThis study has been registered at ClinicalTrials.gov ( NCT01969344).FUNDINGUS NIH, National Heart, Lung and Blood Institute, supplemented by contributions made through the Foundation for the NIH and the COPD Foundation from AstraZeneca/MedImmune, Bayer, Bellerophon Therapeutics, Boehringer-Ingelheim Pharmaceuticals Inc., Chiesi Farmaceutici S.p.A., Forest Research Institute Inc., GlaxoSmithKline, Grifols Therapeutics Inc., Ikaria Inc., Novartis Pharmaceuticals Corporation, Nycomed GmbH, ProterixBio, Regeneron Pharmaceuticals Inc., Sanofi, Sunovion, Takeda Pharmaceutical Company, and Theravance Biopharma and Mylan.
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Affiliation(s)
- William Z Zhang
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, New York, New York, USA.,New York-Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Michelle C Rice
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, and
| | - Katherine L Hoffman
- Department of Healthcare Policy and Research, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, New York, USA
| | - Clara Oromendia
- Department of Healthcare Policy and Research, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, New York, USA
| | - Igor Z Barjaktarevic
- Division of Pulmonary and Critical Care Medicine, UCLA Medical Center, Los Angeles, California, USA
| | - J Michael Wells
- University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Annette T Hastie
- Pulmonary, Critical Care, Allergy, and Immunologic Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Wassim W Labaki
- Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Christopher B Cooper
- Division of Pulmonary and Critical Care Medicine, UCLA Medical Center, Los Angeles, California, USA
| | - Alejandro P Comellas
- Division of Pulmonary and Critical Care, University of Iowa, Iowa City, Iowa, USA
| | - Gerard J Criner
- Department of Thoracic Medicine and Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
| | - Jerry A Krishnan
- Division of Pulmonary, Critical Care, Sleep and Allergy, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Robert Paine
- Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Nadia N Hansel
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Russell P Bowler
- Division of Pulmonary, Critical Care Medicine, National Jewish Health, Denver, Colorado, USA
| | - R Graham Barr
- Columbia University Medical Center, New York, New York, USA
| | - Stephen P Peters
- Pulmonary, Critical Care, Allergy, and Immunologic Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Prescott G Woodruff
- Division of Pulmonary and Critical Care Medicine, UCSF, School of Medicine, San Francisco, California, USA
| | - Jeffrey L Curtis
- Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA.,Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA
| | - Meilan K Han
- Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Karla V Ballman
- Department of Healthcare Policy and Research, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, New York, USA
| | - Fernando J Martinez
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, New York, New York, USA.,New York-Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Augustine Mk Choi
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, New York, New York, USA.,New York-Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Kiichi Nakahira
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, New York, New York, USA
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, New York, New York, USA
| | - Mary E Choi
- New York-Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA.,Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, and
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23
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Aghapour M, Remels AHV, Pouwels SD, Bruder D, Hiemstra PS, Cloonan SM, Heijink IH. Mitochondria: at the crossroads of regulating lung epithelial cell function in chronic obstructive pulmonary disease. Am J Physiol Lung Cell Mol Physiol 2020; 318:L149-L164. [PMID: 31693390 PMCID: PMC6985875 DOI: 10.1152/ajplung.00329.2019] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/04/2019] [Accepted: 11/04/2019] [Indexed: 12/13/2022] Open
Abstract
Disturbances in mitochondrial structure and function in lung epithelial cells have been implicated in the pathogenesis of various lung diseases, including chronic obstructive pulmonary disease (COPD). Such disturbances affect not only cellular energy metabolism but also alter a range of indispensable cellular homeostatic functions in which mitochondria are known to be involved. These range from cellular differentiation, cell death pathways, and cellular remodeling to physical barrier function and innate immunity, all of which are known to be impacted by exposure to cigarette smoke and have been linked to COPD pathogenesis. Next to their well-established role as the first physical frontline against external insults, lung epithelial cells are immunologically active. Malfunctioning epithelial cells with defective mitochondria are unable to maintain homeostasis and respond adequately to further stress or injury, which may ultimately shape the phenotype of lung diseases. In this review, we provide a comprehensive overview of the impact of cigarette smoke on the development of mitochondrial dysfunction in the lung epithelium and highlight the consequences for cell function, innate immune responses, epithelial remodeling, and epithelial barrier function in COPD. We also discuss the applicability and potential therapeutic value of recently proposed strategies for the restoration of mitochondrial function in the treatment of COPD.
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Affiliation(s)
- Mahyar Aghapour
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control, and Prevention, Health Campus Immunology, Infectiology, and Inflammation, Otto-von-Guericke University, Magdeburg, Germany and Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Alexander H V Remels
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Simon D Pouwels
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control, and Prevention, Health Campus Immunology, Infectiology, and Inflammation, Otto-von-Guericke University, Magdeburg, Germany and Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Stanford I, Weill Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Irene H Heijink
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
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24
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Chung KP, Hsu CL, Fan LC, Huang Z, Bhatia D, Chen YJ, Hisata S, Cho SJ, Nakahira K, Imamura M, Choi ME, Yu CJ, Cloonan SM, Choi AMK. Mitofusins regulate lipid metabolism to mediate the development of lung fibrosis. Nat Commun 2019; 10:3390. [PMID: 31358769 PMCID: PMC6662701 DOI: 10.1038/s41467-019-11327-1] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 07/01/2019] [Indexed: 02/07/2023] Open
Abstract
Accumulating evidence illustrates a fundamental role for mitochondria in lung alveolar type 2 epithelial cell (AEC2) dysfunction in the pathogenesis of idiopathic pulmonary fibrosis. However, the role of mitochondrial fusion in AEC2 function and lung fibrosis development remains unknown. Here we report that the absence of the mitochondrial fusion proteins mitofusin1 (MFN1) and mitofusin2 (MFN2) in murine AEC2 cells leads to morbidity and mortality associated with spontaneous lung fibrosis. We uncover a crucial role for MFN1 and MFN2 in the production of surfactant lipids with MFN1 and MFN2 regulating the synthesis of phospholipids and cholesterol in AEC2 cells. Loss of MFN1, MFN2 or inhibiting lipid synthesis via fatty acid synthase deficiency in AEC2 cells exacerbates bleomycin-induced lung fibrosis. We propose a tenet that mitochondrial fusion and lipid metabolism are tightly linked to regulate AEC2 cell injury and subsequent fibrotic remodeling in the lung.
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Affiliation(s)
- Kuei-Pin Chung
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA.,Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University Cancer Center, Taipei, 10002, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Chia-Lang Hsu
- Department of Medical Research, National Taiwan University Hospital, Taipei, 10002, Taiwan
| | - Li-Chao Fan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Ziling Huang
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Divya Bhatia
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Yi-Jung Chen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, 10002, Taiwan
| | - Shu Hisata
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Soo Jung Cho
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Kiichi Nakahira
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Mitsuru Imamura
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Mary E Choi
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA.,New York Presbyterian Hospital-Weill Cornell Medical Center, New York, NY, 10021, USA
| | - Chong-Jen Yu
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA.,Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Augustine M K Choi
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10021, USA. .,New York Presbyterian Hospital-Weill Cornell Medical Center, New York, NY, 10021, USA.
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25
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Najafinobar N, Venkatesan S, von Sydow L, Klarqvist M, Olsson H, Zhou XH, Cloonan SM, Malmberg P. ToF-SIMS mediated analysis of human lung tissue reveals increased iron deposition in COPD (GOLD IV) patients. Sci Rep 2019; 9:10060. [PMID: 31296897 PMCID: PMC6624371 DOI: 10.1038/s41598-019-46471-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 06/25/2019] [Indexed: 02/03/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a debilitating lung disease that is currently the third leading cause of death worldwide. Recent reports have indicated that dysfunctional iron handling in the lungs of COPD patients may be one contributing factor. However, a number of these studies have been limited to the qualitative assessment of iron levels through histochemical staining or to the expression levels of iron-carrier proteins in cells or bronchoalveolar lavage fluid. In this study, we have used time of flight secondary ion mass spectrometry (ToF-SIMS) to visualize and relatively quantify iron accumulation in lung tissue sections of healthy donors versus severe COPD patients. An IONTOF 5 instrument was used to perform the analysis, and further multivariate analysis was used to analyze the data. An orthogonal partial least squares discriminant analysis (OPLS-DA) score plot revealed good separation between the two groups. This separation was primarily attributed to differences in iron content, as well as differences in other chemical signals possibly associated with lipid species. Further, relative quantitative analysis revealed twelve times higher iron levels in lung tissue sections of COPD patients when compared to healthy donors. In addition, iron accumulation observed within the cells was heterogeneously distributed, indicating cellular compartmentalization.
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Affiliation(s)
- Neda Najafinobar
- Medicinal Chemistry, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Shalini Venkatesan
- Target & Translational Science, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Lena von Sydow
- Medicinal Chemistry, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Magnus Klarqvist
- Early Product Development, Pharm Sci, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Henric Olsson
- Target & Translational Science, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Xiao-Hong Zhou
- Target & Translational Science, Respiratory, Inflammation and Autoimmunity, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, New York City, New York, USA
| | - Per Malmberg
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden.
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26
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Plataki M, Fan L, Sanchez E, Huang Z, Torres LK, Imamura M, Zhu Y, Cohen DE, Cloonan SM, Choi AM. Fatty acid synthase downregulation contributes to acute lung injury in murine diet-induced obesity. JCI Insight 2019; 5:127823. [PMID: 31287803 DOI: 10.1172/jci.insight.127823] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The prevalence of obesity is rising worldwide and obese patients comprise a specific population in the intensive care unit. Acute respiratory distress syndrome (ARDS) incidence is increased in obese patients. Exposure of rodents to hyperoxia mimics many of the features of ARDS. In this report, we demonstrate that high fat diet induced obesity increases the severity of hyperoxic acute lung injury in mice in part by altering fatty acid synthase (FASN) levels in the lung. Obese mice exposed to hyperoxia had significantly reduced survival and increased lung damage. Transcriptomic analysis of lung homogenates identified Fasn as one of the most significantly altered mitochondrial associated genes in mice receiving 60% compared to 10% fat diet. FASN protein levels in the lung of high fat diet mice were lower by immunoblotting and immunohistochemistry. Depletion of FASN in type II alveolar epithelial cells resulted in altered mitochondrial bioenergetics and more severe lung injury with hyperoxic exposure, even upon the administration of a 60% fat diet. This is the first study to show that a high fat diet leads to altered FASN expression in the lung and that both a high fat diet and reduced FASN expression in alveolar epithelial cells promote lung injury.
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Affiliation(s)
- Maria Plataki
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA.,NewYork-Presbyterian Hospital/Weill Cornell Medical Center, New York, New York, USA
| | - LiChao Fan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Elizabeth Sanchez
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Ziling Huang
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Lisa K Torres
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Mitsuru Imamura
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Yizhang Zhu
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - David E Cohen
- Division of Gastroenterology and Hepatology, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Augustine Mk Choi
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA.,NewYork-Presbyterian Hospital/Weill Cornell Medical Center, New York, New York, USA
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Cloonan SM. Circulating Mitochondrial DNA as a Mechanism-based, Prognostic Biomarker for Idiopathic Pulmonary Fibrosis. Am J Respir Crit Care Med 2019; 196:1502-1504. [PMID: 28813161 DOI: 10.1164/rccm.201708-1593ed] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Suzanne M Cloonan
- 1 Division of Pulmonary and Critical Care Medicine Weill Cornell Medical College New York, New York
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Abstract
Iron is one of the most abundant transition elements and is indispensable for almost all organisms. While the ability of iron to participate in redox chemistry is an essential requirement for participation in a range of vital enzymatic reactions, this same feature of iron also makes it dangerous in the generation of hydroxyl radicals and superoxide anions. Given the high local oxygen tensions in the lung, the regulation of iron acquisition, utilization, and storage therefore becomes vitally important, perhaps more so than in any other biological system. Iron plays a critical role in the biology of essentially every cell type in the lung, and in particular, changes in iron levels have important ramifications on immune function and the local lung microenvironment. There is substantial evidence that cigarette smoke causes iron dysregulation, with the implication that iron may be the link between smoking and smoking-related lung diseases. A better understanding of the connection between cigarette smoke, iron, and respiratory diseases will help to elucidate pathogenic mechanisms and aid in the identification of novel therapeutic targets.
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Affiliation(s)
- William Z Zhang
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY 10021, USA; Department of Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, NY 10021, USA
| | - James J Butler
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY 10021, USA
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY 10021, USA.
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29
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Faner R, Morrow JD, Casas-Recasens S, Cloonan SM, Noell G, López-Giraldo A, Tal-Singer R, Miller BE, Silverman EK, Agustí A, Hersh CP. Do sputum or circulating blood samples reflect the pulmonary transcriptomic differences of COPD patients? A multi-tissue transcriptomic network META-analysis. Respir Res 2019; 20:5. [PMID: 30621695 PMCID: PMC6325784 DOI: 10.1186/s12931-018-0965-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 12/16/2018] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Previous studies have identified lung, sputum or blood transcriptomic biomarkers associated with the severity of airflow limitation in COPD. Yet, it is not clear whether the lung pathobiology is mirrored by these surrogate tissues. The aim of this study was to explore this question. METHODS We used Weighted Gene Co-expression Network Analysis (WGCNA) to identify shared pathological mechanisms across four COPD gene-expression datasets: two sets of lung tissues (L1 n = 70; L2 n = 124), and one each of induced sputum (S; n = 121) and peripheral blood (B; n = 121). RESULTS WGCNA analysis identified twenty-one gene co-expression modules in L1. A robust module preservation between the two L datasets was observed (86%), with less preservation in S (33%) and even less in B (23%). Three modules preserved across lung tissues and sputum (not blood) were associated with the severity of airflow limitation. Ontology enrichment analysis showed that these modules included genes related to mitochondrial function, ion-homeostasis, T cells and RNA processing. These findings were largely reproduced using the consensus WGCNA network approach. CONCLUSIONS These observations indicate that major differences in lung tissue transcriptomics in patients with COPD are poorly mirrored in sputum and are unrelated to those determined in blood, suggesting that the systemic component in COPD is independently regulated. Finally, the fact that one of the preserved modules associated with FEV1 was enriched in mitochondria-related genes supports a role for mitochondrial dysfunction in the pathobiology of COPD.
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Affiliation(s)
- Rosa Faner
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), C/Casanova 143, Cellex, P2A, 08036, Barcelona, Spain.
| | - Jarrett D Morrow
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Sandra Casas-Recasens
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), C/Casanova 143, Cellex, P2A, 08036, Barcelona, Spain
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Guillaume Noell
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), C/Casanova 143, Cellex, P2A, 08036, Barcelona, Spain
| | - Alejandra López-Giraldo
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), C/Casanova 143, Cellex, P2A, 08036, Barcelona, Spain
- Respiratory Institute, Hospital Clinic, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Ruth Tal-Singer
- Respiratory Therapy Area Unit GSK R and D, Collegeville, PA, USA
| | - Bruce E Miller
- Respiratory Therapy Area Unit GSK R and D, Collegeville, PA, USA
| | - Edwin K Silverman
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Alvar Agustí
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), C/Casanova 143, Cellex, P2A, 08036, Barcelona, Spain
- Respiratory Institute, Hospital Clinic, IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Craig P Hersh
- Channing Division of Network Medicine, Brigham and Women's Hospital, Boston, MA, USA
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30
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Burstein SR, Valsecchi F, Kawamata H, Bourens M, Zeng R, Zuberi A, Milner TA, Cloonan SM, Lutz C, Barrientos A, Manfredi G. In vitro and in vivo studies of the ALS-FTLD protein CHCHD10 reveal novel mitochondrial topology and protein interactions. Hum Mol Genet 2019; 27:160-177. [PMID: 29112723 DOI: 10.1093/hmg/ddx397] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 11/01/2017] [Indexed: 12/12/2022] Open
Abstract
Mutations in coiled-coil-helix-coiled-coil-helix-domain containing 10 (CHCHD10), a mitochondrial twin CX9C protein whose function is still unknown, cause myopathy, motor neuron disease, frontotemporal dementia, and Parkinson's disease. Here, we investigate CHCHD10 topology and its protein interactome, as well as the effects of CHCHD10 depletion or expression of disease-associated mutations in wild-type cells. We find that CHCHD10 associates with membranes in the mitochondrial intermembrane space, where it interacts with a closely related protein, CHCHD2. Furthermore, both CHCHD10 and CHCHD2 interact with p32/GC1QR, a protein with various intra and extra-mitochondrial functions. CHCHD10 and CHCHD2 have short half-lives, suggesting regulatory rather than structural functions. Cell lines with CHCHD10 knockdown do not display bioenergetic defects, but, unexpectedly, accumulate excessive intramitochondrial iron. In mice, CHCHD10 is expressed in many tissues, most abundantly in heart, skeletal muscle, liver, and in specific CNS regions, notably the dopaminergic neurons of the substantia nigra and spinal cord neurons, which is consistent with the pathology associated with CHCHD10 mutations. Homozygote CHCHD10 knockout mice are viable, have no gross phenotypes, no bioenergetic defects or ultrastructural mitochondrial abnormalities in brain, heart or skeletal muscle, indicating that functional redundancy or compensatory mechanisms for CHCHD10 loss occur in vivo. Instead, cells expressing S59L or R15L mutant versions of CHCHD10, but not WT, have impaired mitochondrial energy metabolism. Taken together, the evidence obtained from our in vitro and in vivo studies suggest that CHCHD10 mutants cause disease through a gain of toxic function mechanism, rather than a loss of function.
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Affiliation(s)
- S R Burstein
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USA.,Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, NY 10065, USA
| | - F Valsecchi
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USA
| | - H Kawamata
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USA
| | - M Bourens
- Department of Neurology, Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - R Zeng
- Department of Neurology, Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - A Zuberi
- The Jackson Laboratories, ME 04609, USA
| | - T A Milner
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USA.,Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, New York, NY 10065, USA
| | - S M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - C Lutz
- The Jackson Laboratories, ME 04609, USA
| | - A Barrientos
- Department of Neurology, Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - G Manfredi
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10065, USA
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Abstract
Mitochondria are an iconic distinguishing feature of eukaryotic cells. Mitochondria encompass an active organellar network that fuses, divides, and directs a myriad of vital biological functions, including energy metabolism, cell death regulation, and innate immune signaling in different tissues. Another crucial and often underappreciated function of these dynamic organelles is their central role in the metabolism of the most abundant and biologically versatile transition metals in mammalian cells, iron. In recent years, cellular and animal models of mitochondrial iron dysfunction have provided vital information in identifying new proteins that have elucidated the pathways involved in mitochondrial homeostasis and iron metabolism. Specific signatures of mitochondrial iron dysregulation that are associated with disease pathogenesis and/or progression are becoming increasingly important. Understanding the molecular mechanisms regulating mitochondrial iron pathways will help better define the role of this important metal in mitochondrial function and in human health and disease.
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Affiliation(s)
- Diane M Ward
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah 84112, USA
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, NY 10065, USA;
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32
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Pabón MA, Patino E, Bhatia D, Rojas-Quintero J, Ma KC, Finkelsztein EJ, Osorio JC, Malick F, Polverino F, Owen CA, Ryter SW, Choi AM, Cloonan SM, Choi ME. Beclin-1 regulates cigarette smoke-induced kidney injury in a murine model of chronic obstructive pulmonary disease. JCI Insight 2018; 3:99592. [PMID: 30232271 PMCID: PMC6237223 DOI: 10.1172/jci.insight.99592] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 08/03/2018] [Indexed: 12/19/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD), associated with cigarette smoke-induced (CS-induced) emphysema, contributes significantly to the global health care burden of disease. Although chronic kidney disease (CKD) may occur in patients with COPD, the relationship between COPD and CKD remains unclear. Using a murine model of experimental COPD, we show that chronic CS exposure resulted in marked kidney injury and fibrosis, as evidenced by histological and ultrastructural changes, altered macrophage subpopulations, and expression of tissue injury, fibrosis, and oxidative stress markers. CS induced mitochondrial dysfunction, and increased autophagic flux in kidney tissues and in kidney tubular epithelial (HK-2) cells, as determined by LC3B turnover assays. Mice heterozygous for Beclin-1 (Becn1+/-) were protected from the development of kidney tissue injury and renal fibrosis in response to CS exposure, and displayed impaired basal and inducible mitochondrial turnover by mitophagy. Interestingly, CS caused a reduction of Beclin-1 expression in mouse kidneys and kidney tubular epithelial cells, attributed to increased autophagy-dependent turnover of Beclin-1. These results suggest that Beclin-1 is required for CS-induced kidney injury and that reduced levels of Beclin-1 may confer renoprotection. These results identify the kidney as a target for CS-induced injury in COPD and the Beclin-1-dependent autophagy pathway as a potential therapeutic target in CKD.
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Affiliation(s)
- Maria A. Pabón
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- NewYork–Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Edwin Patino
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Divya Bhatia
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Joselyn Rojas-Quintero
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Kevin C. Ma
- NewYork–Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Eli J. Finkelsztein
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Juan C. Osorio
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- NewYork–Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Faryal Malick
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Francesca Polverino
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Caroline A. Owen
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Stefan W. Ryter
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - 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, USA
- NewYork–Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Suzanne M. Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Mary E. Choi
- NewYork–Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
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33
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Ma KC, Schenck EJ, Siempos II, Cloonan SM, Finkelsztein EJ, Pabon MA, Oromendia C, Ballman KV, Baron RM, Fredenburgh LE, Higuera A, Lee JY, Chung CR, Jeon K, Yang JH, Howrylak JA, Huh JW, Suh GY, Choi AM. Circulating RIPK3 levels are associated with mortality and organ failure during critical illness. JCI Insight 2018; 3:99692. [PMID: 29997296 DOI: 10.1172/jci.insight.99692] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 06/06/2018] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Necroptosis is a form of programmed necrotic cell death that is rapidly emerging as an important pathophysiological pathway in numerous disease states. Necroptosis is dependent on receptor-interacting protein kinase 3 (RIPK3), a protein shown to play an important role in experimental models of critical illness. However, there is limited clinical evidence regarding the role of extracellular RIPK3 in human critical illness. METHODS Plasma RIPK3 levels were measured in 953 patients prospectively enrolled in 5 ongoing intensive care unit (ICU) cohorts in both the USA and Korea. RIPK3 concentrations among groups were compared using prospectively collected phenotypic and outcomes data. RESULTS In all 5 cohorts, extracellular RIPK3 levels in the plasma were higher in patients who died in the hospital compared with those who survived to discharge. In a combined analysis, increasing RIPK3 levels were associated with elevated odds of in-hospital mortality (odds ratio [OR] 1.7 for each log10-unit increase in RIPK3 level, P < 0.0001). When adjusted for baseline severity of illness, the OR for in-hospital mortality remained statistically significant (OR 1.33, P = 0.007). Higher RIPK3 levels were also associated with more severe organ failure. CONCLUSIONS Our findings suggest that elevated levels of RIPK3 in the plasma of patients admitted to the ICU are associated with in-hospital mortality and organ failure. FUNDING Supported by NIH grants P01 HL108801, R01 HL079904, R01 HL055330, R01 HL060234, K99 HL125899, and KL2TR000458-10. Supported by Samsung Medical Center grant SMX1161431.
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Affiliation(s)
- Kevin C Ma
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine.,NewYork-Presbyterian Hospital
| | - Edward J Schenck
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine.,NewYork-Presbyterian Hospital
| | - Ilias I Siempos
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine
| | - Eli J Finkelsztein
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine
| | - Maria A Pabon
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine.,Division of General Internal Medicine, Joan and Sanford I. Weill Department of Medicine, and
| | - Clara Oromendia
- Department of Healthcare Policy and Research, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, New York, USA
| | - Karla V Ballman
- Department of Healthcare Policy and Research, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, New York, USA
| | - Rebecca M Baron
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School. Boston, Massachusetts, USA
| | - Laura E Fredenburgh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School. Boston, Massachusetts, USA
| | - Angelica Higuera
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School. Boston, Massachusetts, USA
| | - Jin Young Lee
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Chi Ryang Chung
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyeongman Jeon
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jeong Hoon Yang
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Judie A Howrylak
- Division of Pulmonary, Allergy, and Critical Care Medicine, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Jin-Won Huh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Gee Young Suh
- Department of Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Augustine Mk Choi
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine.,NewYork-Presbyterian Hospital
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34
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Racanelli AC, Kikkers SA, Choi AM, Cloonan SM. Autophagy and inflammation in chronic respiratory disease. Autophagy 2018; 14:221-232. [PMID: 29130366 PMCID: PMC5902194 DOI: 10.1080/15548627.2017.1389823] [Citation(s) in RCA: 296] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 10/02/2017] [Accepted: 10/05/2017] [Indexed: 12/14/2022] Open
Abstract
Persistent inflammation within the respiratory tract underlies the pathogenesis of numerous chronic pulmonary diseases including chronic obstructive pulmonary disease, asthma and pulmonary fibrosis. Chronic inflammation in the lung may arise from a combination of genetic susceptibility and environmental influences, including exposure to microbes, particles from the atmosphere, irritants, pollutants, allergens, and toxic molecules. To this end, an immediate, strong, and highly regulated inflammatory defense mechanism is needed for the successful maintenance of homeostasis within the respiratory system. Macroautophagy/autophagy plays an essential role in the inflammatory response of the lung to infection and stress. At baseline, autophagy may be critical for inhibiting spontaneous pulmonary inflammation and fundamental for the response of pulmonary leukocytes to infection; however, when not regulated, persistent or inefficient autophagy may be detrimental to lung epithelial cells, promoting lung injury. This perspective will discuss the role of autophagy in driving and regulating inflammatory responses of the lung in chronic lung diseases with a focus on potential avenues for therapeutic targeting. Abbreviations AR allergic rhinitis AM alveolar macrophage ATG autophagy-related CF cystic fibrosis CFTR cystic fibrosis transmembrane conductance regulator COPD chronic obstructive pulmonary disease CS cigarette smoke CSE cigarette smoke extract DC dendritic cell IH intermittent hypoxia IPF idiopathic pulmonary fibrosis ILD interstitial lung disease MAP1LC3B microtubule associated protein 1 light chain 3 beta MTB Mycobacterium tuberculosis MTOR mechanistic target of rapamycin kinase NET neutrophil extracellular traps OSA obstructive sleep apnea PAH pulmonary arterial hypertension PH pulmonary hypertension ROS reactive oxygen species TGFB1 transforming growth factor beta 1 TNF tumor necrosis factor.
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Affiliation(s)
- Alexandra C. Racanelli
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- New York-Presbyterian Hospital, New York, NY, USA
| | - Sarah Ann Kikkers
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Augustine M.K. Choi
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- New York-Presbyterian Hospital, New York, NY, USA
| | - Suzanne M. Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY, USA
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35
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Cloonan SM, Mumby S, Adcock IM, Choi AMK, Chung KF, Quinlan GJ. The "Iron"-y of Iron Overload and Iron Deficiency in Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2017; 196:1103-1112. [PMID: 28410559 DOI: 10.1164/rccm.201702-0311pp] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Suzanne M Cloonan
- 1 Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York
| | | | | | - Augustine M K Choi
- 1 Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York.,3 New York-Presbyterian Hospital, New York, New York
| | | | - Gregory J Quinlan
- 4 Vascular Biology, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
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36
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Abstract
Mitochondria are a distinguishing feature of eukaryotic cells. Best known for their critical function in energy production via oxidative phosphorylation (OXPHOS), mitochondria are essential for nutrient and oxygen sensing and for the regulation of critical cellular processes, including cell death and inflammation. Such diverse functional roles for organelles that were once thought to be simple may be attributed to their distinct heteroplasmic genome, exclusive maternal lineage of inheritance, and ability to generate signals to communicate with other cellular organelles. Mitochondria are now thought of as one of the cell's most sophisticated and dynamic responsive sensing systems. Specific signatures of mitochondrial dysfunction that are associated with disease pathogenesis and/or progression are becoming increasingly important. In particular, the centrality of mitochondria in the pathological processes and clinical phenotypes associated with a range of lung diseases is emerging. Understanding the molecular mechanisms regulating the mitochondrial processes of lung cells will help to better define phenotypes and clinical manifestations associated with respiratory disease and to identify potential diagnostic and therapeutic targets.
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37
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Cloonan SM, Glass K, Laucho-Contreras ME, Bhashyam AR, Cervo M, Pabón MA, Konrad C, Polverino F, Siempos II, Perez E, Mizumura K, Ghosh MC, Parameswaran H, Williams NC, Rooney KT, Chen ZH, Goldklang MP, Yuan GC, Moore SC, Demeo DL, Rouault TA, D’Armiento JM, Schon EA, Manfredi G, Quackenbush J, Mahmood A, Silverman EK, Owen CA, Choi AM. Mitochondrial iron chelation ameliorates cigarette smoke-induced bronchitis and emphysema in mice. Nat Med 2016; 22:163-74. [PMID: 26752519 PMCID: PMC4742374 DOI: 10.1038/nm.4021] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 12/01/2015] [Indexed: 12/20/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is linked to both cigarette smoking and genetic determinants. We have previously identified iron-responsive element-binding protein 2 (IRP2) as an important COPD susceptibility gene and have shown that IRP2 protein is increased in the lungs of individuals with COPD. Here we demonstrate that mice deficient in Irp2 were protected from cigarette smoke (CS)-induced experimental COPD. By integrating RNA immunoprecipitation followed by sequencing (RIP-seq), RNA sequencing (RNA-seq), and gene expression and functional enrichment clustering analysis, we identified Irp2 as a regulator of mitochondrial function in the lungs of mice. Irp2 increased mitochondrial iron loading and levels of cytochrome c oxidase (COX), which led to mitochondrial dysfunction and subsequent experimental COPD. Frataxin-deficient mice, which had higher mitochondrial iron loading, showed impaired airway mucociliary clearance (MCC) and higher pulmonary inflammation at baseline, whereas mice deficient in the synthesis of cytochrome c oxidase, which have reduced COX, were protected from CS-induced pulmonary inflammation and impairment of MCC. Mice treated with a mitochondrial iron chelator or mice fed a low-iron diet were protected from CS-induced COPD. Mitochondrial iron chelation also alleviated CS-induced impairment of MCC, CS-induced pulmonary inflammation and CS-associated lung injury in mice with established COPD, suggesting a critical functional role and potential therapeutic intervention for the mitochondrial-iron axis in COPD.
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MESH Headings
- Aged
- Aged, 80 and over
- Airway Remodeling
- Animals
- Bronchitis/etiology
- Bronchitis/genetics
- Disease Models, Animal
- Electron Transport Complex IV/metabolism
- Electrophoretic Mobility Shift Assay
- Enzyme-Linked Immunosorbent Assay
- Flow Cytometry
- Gene Expression Profiling
- Humans
- Immunoblotting
- Immunohistochemistry
- Immunoprecipitation
- Iron/metabolism
- Iron Chelating Agents/pharmacology
- Iron Regulatory Protein 2/genetics
- Iron Regulatory Protein 2/metabolism
- Iron, Dietary
- Iron-Binding Proteins/genetics
- Lung/drug effects
- Lung/metabolism
- Lung Injury/etiology
- Lung Injury/genetics
- Membrane Potential, Mitochondrial
- Mice
- Mice, Knockout
- Microscopy, Confocal
- Microscopy, Electron, Transmission
- Microscopy, Fluorescence
- Mitochondria/drug effects
- Mitochondria/metabolism
- Mucociliary Clearance/genetics
- Pneumonia/etiology
- Pneumonia/genetics
- Pulmonary Disease, Chronic Obstructive/etiology
- Pulmonary Disease, Chronic Obstructive/genetics
- Pulmonary Disease, Chronic Obstructive/metabolism
- Pulmonary Emphysema/etiology
- Pulmonary Emphysema/genetics
- Real-Time Polymerase Chain Reaction
- Smoke/adverse effects
- Smoking/adverse effects
- Nicotiana
- Frataxin
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Affiliation(s)
- Suzanne M. Cloonan
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Kimberly Glass
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA, USA
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Maria E. Laucho-Contreras
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Abhiram R. Bhashyam
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Morgan Cervo
- Department of Radiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Maria A. Pabón
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA
| | - Csaba Konrad
- Brain and Mind Research Institute, Weill Cornell Medical College, New York, NY, USA
| | - Francesca Polverino
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Lovelace Respiratory Research institute, Albuquerque, NM, USA
- Pulmonary Department, University of Parma, Parma, Italy
| | - Ilias I. Siempos
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA
- First Department of Critical Care Medicine and Pulmonary Services, Evangelismos Hospital, University of Athens, Medical School, Athens, Greece
| | - Elizabeth Perez
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA
| | - Kenji Mizumura
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Manik C. Ghosh
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Bethesda, MD, USA
| | | | - Niamh C. Williams
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA
| | - Kristen T. Rooney
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA
| | - Zhi-Hua Chen
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Department of Respiratory and Critical Care Medicine, Second Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Monica P. Goldklang
- Department of Anesthesiology, Columbia University, New York, NY, USA
- Department of Medicine, Columbia University, New York, NY, USA
| | - Guo-Cheng Yuan
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Stephen C. Moore
- Department of Radiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Dawn L. Demeo
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Tracey A. Rouault
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), Bethesda, MD, USA
| | - Jeanine M. D’Armiento
- Department of Anesthesiology, Columbia University, New York, NY, USA
- Department of Medicine, Columbia University, New York, NY, USA
- Department of Physiology & Cellular Biophysics, Columbia University, New York, NY, USA
| | - Eric A. Schon
- Department of Neurology, Columbia University Medical Center, New York, NY, USA
- Department of Genetics and Development, Columbia University Medical Center, New York, NY, USA
| | - Giovanni Manfredi
- Brain and Mind Research Institute, Weill Cornell Medical College, New York, NY, USA
| | - John Quackenbush
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA, USA
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Ashfaq Mahmood
- Department of Radiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Edwin K. Silverman
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Channing Division of Network Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Caroline A. Owen
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Lovelace Respiratory Research institute, Albuquerque, NM, USA
| | - Augustine M.K. Choi
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
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Cloonan SM, Elmes RBP, Erby M, Bright SA, Poynton FE, Nolan DE, Quinn SJ, Gunnlaugsson T, Williams DC. Detailed Biological Profiling of a Photoactivated and Apoptosis Inducing pdppz Ruthenium(II) Polypyridyl Complex in Cancer Cells. J Med Chem 2015; 58:4494-505. [PMID: 25961430 DOI: 10.1021/acs.jmedchem.5b00451] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Ruthenium polypyridyl complexes show great promise as new photodynamic therapy (PDT) agents. However, a lack of detailed understanding of their mode of action in cells poses a challenge to their development. We have designed a new Ru(II) PDT candidate that efficiently enters cells by incorporation of the lipophilic aromatic pdppz ([2,3-h]dipyrido[3,2-a:2',3'-c]phenazine) ligand and exhibits photoactivity through incorporation of 1,4,5,8-tetraazaphenanthrene ancillary ligands. Its photoreactivity toward biomolecules was studied in vitro, where light activation caused DNA cleavage. Cellular internalization occurred via an energy dependent mechanism. Confocal and transmission electron microscopy revealed that the complex localizes in various organelles, including the mitochondria. The complex is nontoxic in the dark, with cellular clearance within 96 h; however, upon visible light activation it induces caspase-dependent and reactive-oxygen-species-dependent apoptosis, with low micromolar IC50 values. This investigation greatly increases our understanding of such systems in cellulo, aiding development and realization of their application in cancer therapy.
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Affiliation(s)
- Suzanne M Cloonan
- †School of Biochemistry and Immunology and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Robert B P Elmes
- ‡School of Chemistry and Trinity Biomedical Sciences Institute, Centre for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland
| | - MariaLuisa Erby
- †School of Biochemistry and Immunology and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Sandra A Bright
- †School of Biochemistry and Immunology and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Fergus E Poynton
- ‡School of Chemistry and Trinity Biomedical Sciences Institute, Centre for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland
| | - Derek E Nolan
- †School of Biochemistry and Immunology and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Susan J Quinn
- §School of Chemistry and Chemical Biology, University College Dublin, Dublin 2, Ireland
| | - Thorfinnur Gunnlaugsson
- ‡School of Chemistry and Trinity Biomedical Sciences Institute, Centre for Synthesis and Chemical Biology, Trinity College Dublin, Dublin 2, Ireland
| | - D Clive Williams
- †School of Biochemistry and Immunology and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
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Mizumura K, Cloonan SM, Nakahira K, Bhashyam AR, Cervo M, Kitada T, Glass K, Owen CA, Mahmood A, Washko GR, Hashimoto S, Ryter SW, Choi AM. Mitophagy-dependent necroptosis contributes to the pathogenesis of COPD. J Clin Invest 2014; 124:3987-4003. [PMID: 25083992 PMCID: PMC4151233 DOI: 10.1172/jci74985] [Citation(s) in RCA: 419] [Impact Index Per Article: 41.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Accepted: 06/06/2014] [Indexed: 12/15/2022] Open
Abstract
The pathogenesis of chronic obstructive pulmonary disease (COPD) remains unclear, but involves loss of alveolar surface area (emphysema) and airway inflammation (bronchitis) as the consequence of cigarette smoke (CS) exposure. Previously, we demonstrated that autophagy proteins promote lung epithelial cell death, airway dysfunction, and emphysema in response to CS; however, the underlying mechanisms have yet to be elucidated. Here, using cultured pulmonary epithelial cells and murine models, we demonstrated that CS causes mitochondrial dysfunction that is associated with a reduction of mitochondrial membrane potential. CS induced mitophagy, the autophagy-dependent elimination of mitochondria, through stabilization of the mitophagy regulator PINK1. CS caused cell death, which was reduced by administration of necrosis or necroptosis inhibitors. Genetic deficiency of PINK1 and the mitochondrial division/mitophagy inhibitor Mdivi-1 protected against CS-induced cell death and mitochondrial dysfunction in vitro and reduced the phosphorylation of MLKL, a substrate for RIP3 in the necroptosis pathway. Moreover, Pink1(-/-) mice were protected against mitochondrial dysfunction, airspace enlargement, and mucociliary clearance (MCC) disruption during CS exposure. Mdivi-1 treatment also ameliorated CS-induced MCC disruption in CS-exposed mice. In human COPD, lung epithelial cells displayed increased expression of PINK1 and RIP3. These findings implicate mitophagy-dependent necroptosis in lung emphysematous changes in response to CS exposure, suggesting that this pathway is a therapeutic target for COPD.
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Affiliation(s)
- Kenji Mizumura
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Suzanne M. Cloonan
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Kiichi Nakahira
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Abhiram R. Bhashyam
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Morgan Cervo
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Tohru Kitada
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Kimberly Glass
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Caroline A. Owen
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Ashfaq Mahmood
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - George R. Washko
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Shu Hashimoto
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Stefan W. Ryter
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
| | - Augustine M.K. Choi
- Joan and Sanford I. Weill Department of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, New York, USA. Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Respiratory Medicine, Nihon University School of Medicine, Tokyo, Japan. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA. Division of Neuroscience, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute and Harvard School of Public Health, Boston, Massachusetts, USA
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Nakahira K, Cloonan SM, Mizumura K, Choi AMK, Ryter SW. Autophagy: a crucial moderator of redox balance, inflammation, and apoptosis in lung disease. Antioxid Redox Signal 2014; 20:474-94. [PMID: 23879400 PMCID: PMC3894710 DOI: 10.1089/ars.2013.5373] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
SIGNIFICANCE Autophagy is a fundamental cellular process that functions in the turnover of subcellular organelles and protein. Activation of autophagy may represent a cellular defense against oxidative stress, or related conditions that cause accumulation of damaged proteins or organelles. Selective forms of autophagy can maintain organelle populations or remove aggregated proteins. Autophagy can increase survival during nutrient deficiency and play a multifunctional role in host defense, by promoting pathogen clearance and modulating innate and adaptive immune responses. RECENT ADVANCES Autophagy has been described as an inducible response to oxidative stress. Once believed to represent a random process, recent studies have defined selective mechanisms for cargo assimilation into autophagosomes. Such mechanisms may provide for protein aggregate detoxification and mitochondrial homeostasis during oxidative stress. Although long studied as a cellular phenomenon, recent advances implicate autophagy as a component of human diseases. Altered autophagy phenotypes have been observed in various human diseases, including lung diseases such as chronic obstructive lung disease, cystic fibrosis, pulmonary hypertension, and idiopathic pulmonary fibrosis. CRITICAL ISSUES Although autophagy can represent a pro-survival process, in particular, during nutrient starvation, its role in disease pathogenesis may be multifunctional and complex. The relationship of autophagy to programmed cell death pathways is incompletely defined and varies with model system. FUTURE DIRECTIONS Activation or inhibition of autophagy may be used to alter the progression of human diseases. Further resolution of the mechanisms by which autophagy impacts the initiation and progression of diseases may lead to the development of therapeutics specifically targeting this pathway.
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Affiliation(s)
- Kiichi Nakahira
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital , Harvard Medical School, Boston, Massachusetts
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Abstract
Chronic obstructive pulmonary disease (COPD) involves aberrant airway inflammatory responses to cigarette smoke (CS) associated with respiratory epithelial cell cilia shortening and impaired mucociliary clearance (MCC). The underlying cellular and molecular mechanisms for CS-associated cilia shortening have remained incompletely understood. We have previously demonstrated increased autophagy in the lungs of COPD patients; however, whether or not this process is selective for specific autophagic targets in the lung was not elucidated. Based on observations that increased morphological and biochemical indicators of autophagy correlate with cilia shortening in our models, we posited that autophagy might regulate cilia length in response to CS in the lung. We demonstrate that CS-induced cilia shortening occurs through an autophagy-dependent mechanism mediated by the deacetylase HDAC6 (histone deacetylase 6). Autophagy-impaired (Becn1(+/-), map1lc3b(-/-), or Hdac6(-/Y)) mice resist CS-induced cilia shortening. Furthermore, cilia components are identified as autophagic substrates during CS exposure. Assessment of airway cilia function using a 3D MCC assay demonstrates that Becn1(+/-), map1lc3b(-/-), and Hdac6(-/Y) mice or mice injected with the HDAC6 inhibitor tubastatin A are protected from CS-associated mucociliary dysfunction. We concluded that an autophagy-dependent pathway regulates cilia length during CS exposure, which identifies new pathways and targets in COPD.
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Affiliation(s)
- Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine; Brigham and Women's Hospital and Harvard Medical School; Boston, MA USA; Pulmonary and Critical Care Medicine; Weill Cornell Medical College; New York, NY USA
| | - Hilaire C Lam
- Division of Pulmonary and Critical Care Medicine; Brigham and Women's Hospital and Harvard Medical School; Boston, MA USA
| | - Stefan W Ryter
- Division of Pulmonary and Critical Care Medicine; Brigham and Women's Hospital and Harvard Medical School; Boston, MA USA
| | - Augustine M Choi
- Division of Pulmonary and Critical Care Medicine; Brigham and Women's Hospital and Harvard Medical School; Boston, MA USA; Pulmonary and Critical Care Medicine; Weill Cornell Medical College; New York, NY USA
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Lam HC, Cloonan SM, Bhashyam AR, Haspel JA, Singh A, Sathirapongsasuti JF, Cervo M, Yao H, Chung AL, Mizumura K, An CH, Shan B, Franks JM, Haley KJ, Owen CA, Tesfaigzi Y, Washko GR, Quackenbush J, Silverman EK, Rahman I, Kim HP, Mahmood A, Biswal SS, Ryter SW, Choi AMK. Histone deacetylase 6-mediated selective autophagy regulates COPD-associated cilia dysfunction. J Clin Invest 2013; 123:5212-30. [PMID: 24200693 DOI: 10.1172/jci69636] [Citation(s) in RCA: 238] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 08/30/2013] [Indexed: 01/05/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) involves aberrant airway inflammatory responses to cigarette smoke (CS) that are associated with epithelial cell dysfunction, cilia shortening, and mucociliary clearance disruption. Exposure to CS reduced cilia length and induced autophagy in vivo and in differentiated mouse tracheal epithelial cells (MTECs). Autophagy-impaired (Becn1+/- or Map1lc3B-/-) mice and MTECs resisted CS-induced cilia shortening. Furthermore, CS increased the autophagic turnover of ciliary proteins, indicating that autophagy may regulate cilia homeostasis. We identified cytosolic deacetylase HDAC6 as a critical regulator of autophagy-mediated cilia shortening during CS exposure. Mice bearing an X chromosome deletion of Hdac6 (Hdac6-/Y) and MTECs from these mice had reduced autophagy and were protected from CS-induced cilia shortening. Autophagy-impaired Becn1-/-, Map1lc3B-/-, and Hdac6-/Y mice or mice injected with an HDAC6 inhibitor were protected from CS-induced mucociliary clearance (MCC) disruption. MCC was preserved in mice given the chemical chaperone 4-phenylbutyric acid, but was disrupted in mice lacking the transcription factor NRF2, suggesting that oxidative stress and altered proteostasis contribute to the disruption of MCC. Analysis of human COPD specimens revealed epigenetic deregulation of HDAC6 by hypomethylation and increased protein expression in the airways. We conclude that an autophagy-dependent pathway regulates cilia length during CS exposure and has potential as a therapeutic target for COPD.
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Abstract
Autophagy is a dynamic process by which cytosolic material, including organelles, proteins, and pathogens, are sequestered into membrane vesicles called autophagosomes, and then delivered to the lysosome for degradation. By recycling cellular components, this process provides a mechanism for adaptation to starvation. The regulation of autophagy by nutrient signals involves a complex network of proteins that include mammalian target of rapamycin, the class III phosphatidylinositol-3 kinase/Beclin 1 complex, and two ubiquitin-like conjugation systems. Additionally, autophagy, which can be induced by multiple forms of chemical and physical stress, including endoplasmic reticulum stress, and hypoxia, plays an integral role in the mammalian stress response. Recent studies indicate that, in addition to bulk assimilation of cytosol, autophagy may proceed through selective pathways that target distinct cargoes to autophagosomes. The principle homeostatic functions of autophagy include the selective clearance of aggregated protein to preserve proteostasis, and the selective removal of dysfunctional mitochondria (mitophagy). Additionally, autophagy plays a central role in innate and adaptive immunity, with diverse functions such as regulation of inflammatory responses, antigen presentation, and pathogen clearance. Autophagy can preserve cellular function in a wide variety of tissue injury and disease states, however, maladaptive or pro-pathogenic outcomes have also been described. Among the many diseases where autophagy may play a role include proteopathies which involve aberrant accumulation of proteins (e.g., neurodegenerative disorders), infectious diseases, and metabolic disorders such as diabetes and metabolic syndrome. Targeting the autophagy pathway and its regulatory components may eventually lead to the development of therapeutics.
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Affiliation(s)
- Stefan W Ryter
- Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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Cloonan SM, Choi AMK. Mitochondria: sensors and mediators of innate immune receptor signaling. Curr Opin Microbiol 2013; 16:327-38. [PMID: 23757367 PMCID: PMC6010029 DOI: 10.1016/j.mib.2013.05.005] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 05/06/2013] [Accepted: 05/13/2013] [Indexed: 12/14/2022]
Abstract
By integrating stress signals with inputs from other cellular organelles, eukaryotic mitochondria are dynamic sensing systems that can confer substantial impact on innate immune signaling in both health and disease. This review highlights recently discovered elements of innate immune receptor signaling (TLR, RLR, NLR, and CLR) associated with mitochondrial function and discusses the role of mitochondria in the initiation and/or manifestation of inflammatory diseases and disorders. We also highlight the role of mitochondria as therapeutic targets for inflammatory disease.
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Affiliation(s)
- Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
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Abstract
Important cellular processes such as inflammation, apoptosis, differentiation, and proliferation confer critical roles in the pathogenesis of human diseases. In the past decade, an emerging process named "autophagy" has generated intense interest in both biomedical research and clinical medicine. Autophagy is a regulated cellular pathway for the turnover of organelles and proteins by lysosomal-dependent processing. Although autophagy was once considered a bulk degradation event, research shows that autophagy selectively degrades specific proteins, organelles, and invading bacteria, a process termed "selective autophagy." It is increasingly clear that autophagy is directly relevant to clinical disease, including pulmonary disease. This review outlines the principal components of the autophagic process and discusses the importance of autophagy and autophagic proteins in pulmonary diseases from COPD, α1-antitrypsin deficiency, pulmonary hypertension, acute lung injury, and cystic fibrosis to respiratory infection and sepsis. Finally, we examine the dual nature of autophagy in the lung, which has both protective and deleterious effects resulting from adaptive and maladaptive responses, and the challenge this duality poses for designing autophagy-based diagnostic and therapeutic targets in lung disease.
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Affiliation(s)
- Kenji Mizumura
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Division of Respiratory Medicine, Department of Internal Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA
| | - Jeffrey A Haspel
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA
| | - Augustine M K Choi
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA.
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Breen JM, Clérac R, Zhang L, Cloonan SM, Kennedy E, Feeney M, McCabe T, Williams DC, Schmitt W. Self-assembly of hybrid organic–inorganic polyoxovanadates: functionalised mixed-valent clusters and molecular cages. Dalton Trans 2012; 41:2918-26. [DOI: 10.1039/c2dt11153e] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Elmes RBP, Orange KN, Cloonan SM, Williams DC, Gunnlaugsson T. Luminescent ruthenium(II) polypyridyl functionalized gold nanoparticles; their DNA binding abilities and application as cellular imaging agents. J Am Chem Soc 2011; 133:15862-5. [PMID: 21923121 DOI: 10.1021/ja2061159] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The synthesis and photophysical and biological investigation of Ru(II)-polypyridyl stabilized water-soluble, luminescent gold nanoparticles (AuNPs) are described. These structures bind to DNA and undergo rapid cellular uptake, being localized within the cell cytoplasm and nucleus within 4 h.
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Affiliation(s)
- Robert B P Elmes
- School of Chemistry, Centre for Synthesis and Chemical Biology, Trinity College, Dublin, Dublin 2, Ireland
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48
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Nathwani SM, Cloonan SM, Stronach M, Campiani G, Lawler M, Williams DC, Zisterer DM. Novel microtubule-targeting agents, pyrrolo-1,5-benzoxazepines, induce cell cycle arrest and apoptosis in prostate cancer cells. Oncol Rep 2011; 24:1499-507. [PMID: 21042745 DOI: 10.3892/or_00001011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Advanced hormone-refractory prostate cancer is associated with poor prognosis and limited treatment options. Members of the pyrrolo-1,5-benzoxazepine (PBOX) family of compounds exhibit anti-cancer properties in cancer cell lines (including multi-drug resistant cells), ex vivo patient samples and in vivo mouse tumour models with minimal toxicity to normal cells. Recently, they have also been found to possess anti-angiogenic properties in vitro. However, both the apoptotic pathways and the overall extent of the apoptotic response induced by PBOX compounds tend to be cell-type specific. Since the effect of the PBOX compounds on prostate cancer has not yet been elucidated, the purpose of this study was to investigate if PBOX compounds induce anti-proliferative effects on hormone-refractory prostate cancer cells. We examined the effect of two representative PBOX compounds, PBOX-6 and PBOX-15, on the androgen-independent human prostate adenocarcinoma cell line, PC3. PBOX-6 and -15 displayed anti-proliferative effects on PC3 cells, mediated initially through a sustained G2/M arrest. G2/M arrest, illustrated as DNA tetraploidy, was accompanied by microtubule depolymerisation and phosphorylation of anti-apoptotic proteins Bcl-2 and Bcl-xL and the mitotic spindle checkpoint protein BubR1. Phosphorylation of BubR1 is indicative of an active mitotic checkpoint and results in maintenance of cell cycle arrest. G2/M arrest was followed by apoptosis illustrated by DNA hypoploidy and PARP cleavage and was accompanied by degradation of BubR1, Bcl-2 and Bcl-xL. Furthermore, sequential treatment with the CDK1-inhibitor, flavopiridol, synergistically enhanced PBOX-induced apoptosis. In summary, this in vitro study indicates that PBOX compounds may be useful alone or in combination with other agents in the treatment of hormone-refractory prostate cancer.
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Elmes RBP, Erby M, Cloonan SM, Quinn SJ, Williams DC, Gunnlaugsson T. Quaternarized pdppz: synthesis, DNA-binding and biological studies of a novel dppz derivative that causes cellular death upon light irradiation. Chem Commun (Camb) 2011; 47:686-8. [DOI: 10.1039/c0cc04303f] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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McNamara YM, Cloonan SM, Knox AJS, Keating JJ, Butler SG, Peters GH, Meegan MJ, Williams DC. Synthesis and serotonin transporter activity of 1,3-bis(aryl)-2-nitro-1-propenes as a new class of anticancer agents. Bioorg Med Chem 2010; 19:1328-48. [PMID: 21227702 DOI: 10.1016/j.bmc.2010.11.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Revised: 11/22/2010] [Accepted: 11/23/2010] [Indexed: 11/18/2022]
Abstract
Structural derivatives of 4-MTA, an illegal amphetamine analogue have been previously shown to have anticancer effects in vitro. In this study we report the synthesis of a series of novel 1,3-bis(aryl)-2-nitro-1-propene derivatives related in structure to 4-MTA. A number of these compounds containing a classic nitrostyrene structure are shown to have antiproliferative activities in vitro in a range of malignant cell lines, particularly against Burkitt's lymphoma derived cell lines, whilst having no effect on 'normal' peripheral blood mononuclear cells. Such effects appear to be independent of the serotonin transporter, a high affinity target for amphetamines and independent of protein tyrosine phosphatases and tubulin dynamics both of which have been previously associated with nitrostyrene-induced cell death. We demonstrate that a number of these compounds induce caspase activation, PARP cleavage, chromatin condensation and membrane blebbing in a Burkitt's lymphoma derived cell line, consistent with these compounds inducing apoptosis in vitro. Although no specific target has yet been identified for the action of these compounds, the cell death elicited is potent, selective and worthy of further investigation.
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Affiliation(s)
- Yvonne M McNamara
- School of Pharmacy and Pharmaceutical Sciences, Centre for Synthesis and Chemical Biology, Trinity College Dublin, Ireland
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