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Shirakami C, Ikeda K, Hinokuma H, Nishi W, Shinchi Y, Matsubara E, Osumi H, Fujino K, Suzuki M. NUF2 Expression in Cancer Tissues and Lymph Nodes Suggests Post-Surgery Recurrence of Non-Small Cell Lung Cancer. Diagnostics (Basel) 2024; 14:471. [PMID: 38472943 DOI: 10.3390/diagnostics14050471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
In non-small cell lung cancer (NSCLC) cases, detecting potential lymph node metastases is essential to determine the indications for sublobar resection or adjuvant therapy. NUF2 is a tumor-specific antigen that is highly expressed in lung cancer tissues. However, the significance of analyzing NUF2 expression in dissected lymph nodes has not yet been studied. Thus, we investigated the association between NUF2 expression in lung cancer tissues and dissected lymph nodes and early recurrence of NSCLC to determine its usefulness as a marker of lymph node micrometastasis. This retrospective study quantified NUF2 expression in the cancer tissues of 88 patients with NSCLC who underwent complete resection using real-time polymerase chain reaction and investigated its relationship with clinicopathological features and prognosis. We also quantified NUF2 RNA expression in mediastinal lymph nodes from 255 patients with pN0 NSCLC who underwent complete resection with lymph node dissection and analyzed its association with prognosis. NUF2 expression in primary tumors was correlated with lymph node metastasis and unfavorable outcomes in terms of poor recurrence-free and cancer-specific survival. In N0 NSCLC cases, high NUF2 expression in mediastinal lymph nodes indicated poor prognosis, especially in lymph node recurrence. NUF2 emerges as a promising marker for predicting lymph node metastatic recurrence, offering potential utility in guiding post-surgical adjuvant therapy for lung cancer or assisting in intraoperative decisions for sublobar resection.
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Affiliation(s)
- Chika Shirakami
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Koei Ikeda
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Hironori Hinokuma
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Wataru Nishi
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Yusuke Shinchi
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Eri Matsubara
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Hironobu Osumi
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Kosuke Fujino
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Makoto Suzuki
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
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2
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Pervizaj-Oruqaj L, Selvakumar B, Ferrero MR, Heiner M, Malainou C, Glaser RD, Wilhelm J, Bartkuhn M, Weiss A, Alexopoulos I, Witte B, Gattenlöhner S, Vadász I, Morty RE, Seeger W, Schermuly RT, Vazquez-Armendariz AI, Herold S. Alveolar macrophage-expressed Plet1 is a driver of lung epithelial repair after viral pneumonia. Nat Commun 2024; 15:87. [PMID: 38167746 PMCID: PMC10761876 DOI: 10.1038/s41467-023-44421-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
Influenza A virus (IAV) infection mobilizes bone marrow-derived macrophages (BMDM) that gradually undergo transition to tissue-resident alveolar macrophages (TR-AM) in the inflamed lung. Combining high-dimensional single-cell transcriptomics with complex lung organoid modeling, in vivo adoptive cell transfer, and BMDM-specific gene targeting, we found that transitioning ("regenerative") BMDM and TR-AM highly express Placenta-expressed transcript 1 (Plet1). We reveal that Plet1 is released from alveolar macrophages, and acts as important mediator of macrophage-epithelial cross-talk during lung repair by inducing proliferation of alveolar epithelial cells and re-sealing of the epithelial barrier. Intratracheal administration of recombinant Plet1 early in the disease course attenuated viral lung injury and rescued mice from otherwise fatal disease, highlighting its therapeutic potential.
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Affiliation(s)
- Learta Pervizaj-Oruqaj
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
| | - Balachandar Selvakumar
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA), Buenos Aires, Argentina
| | - Maximiliano Ruben Ferrero
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA), Buenos Aires, Argentina
| | - Monika Heiner
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
| | - Christina Malainou
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
| | - Rolf David Glaser
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Biomedical Informatics and Systems Medicine, Justus Liebig University, Giessen, Germany
| | - Jochen Wilhelm
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
- Department of Internal Medicine II, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Marek Bartkuhn
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Biomedical Informatics and Systems Medicine, Justus Liebig University, Giessen, Germany
| | - Astrid Weiss
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
- Department of Internal Medicine II, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Ioannis Alexopoulos
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
| | - Biruta Witte
- Department of General and Thoracic Surgery, University Hospital of Giessen, Giessen, Germany
| | | | - István Vadász
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
- Department of Internal Medicine II, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Rory Edward Morty
- Department of Translational Pulmonology and the Translational Lung Research Center, University Hospital Heidelberg, Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Werner Seeger
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA), Buenos Aires, Argentina
- Department of Internal Medicine II, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Ralph Theo Schermuly
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
- Department of Internal Medicine II, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Ana Ivonne Vazquez-Armendariz
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
- University of Bonn, Transdisciplinary Research Area Life and Health, Organoid Biology, Life & Medical Sciences Institute, Bonn, Germany
| | - Susanne Herold
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany.
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany.
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany.
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3
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Patrone PN, DiSalvo M, Kearsley AJ, McFadden GB, Cooksey GA. Reproducibility in cytometry: Signals analysis and its connection to uncertainty quantification. PLoS One 2023; 18:e0295502. [PMID: 38134031 PMCID: PMC10745152 DOI: 10.1371/journal.pone.0295502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 11/24/2023] [Indexed: 12/24/2023] Open
Abstract
Signals analysis for cytometry remains a challenging task that has a significant impact on uncertainty. Conventional cytometers assume that individual measurements are well characterized by simple properties such as the signal area, width, and height. However, these approaches have difficulty distinguishing inherent biological variability from instrument artifacts and operating conditions. As a result, it is challenging to quantify uncertainty in the properties of individual cells and perform tasks such as doublet deconvolution. We address these problems via signals analysis techniques that use scale transformations to: (I) separate variation in biomarker expression from effects due to flow conditions and particle size; (II) quantify reproducibility associated with a given laser interrogation region; (III) estimate uncertainty in measurement values on a per-event basis; and (IV) extract the singlets that make up a multiplet. The key idea behind this approach is to model how variable operating conditions deform the signal shape and then use constrained optimization to "undo" these deformations for measured signals; residuals to this process characterize reproducibility. Using a recently developed microfluidic cytometer, we demonstrate that these techniques can account for instrument and measurand induced variability with a residual uncertainty of less than 2.5% in the signal shape and less than 1% in integrated area.
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Affiliation(s)
- Paul N. Patrone
- National Institute of Standards and Technology, Gaithersburg, MD, United States of America
| | - Matthew DiSalvo
- National Institute of Standards and Technology, Gaithersburg, MD, United States of America
| | - Anthony J. Kearsley
- National Institute of Standards and Technology, Gaithersburg, MD, United States of America
| | - Geoffrey B. McFadden
- National Institute of Standards and Technology, Gaithersburg, MD, United States of America
| | - Gregory A. Cooksey
- National Institute of Standards and Technology, Gaithersburg, MD, United States of America
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4
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Connors J, Cusimano G, Mege N, Woloszczuk K, Konopka E, Bell M, Joyner D, Marcy J, Tardif V, Kutzler MA, Muir R, Haddad EK. Using the power of innate immunoprofiling to understand vaccine design, infection, and immunity. Hum Vaccin Immunother 2023; 19:2267295. [PMID: 37885158 PMCID: PMC10760375 DOI: 10.1080/21645515.2023.2267295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/03/2023] [Indexed: 10/28/2023] Open
Abstract
In the field of immunology, a systems biology approach is crucial to understanding the immune response to infection and vaccination considering the complex interplay between genetic, epigenetic, and environmental factors. Significant progress has been made in understanding the innate immune response, including cell players and critical signaling pathways, but many questions remain unanswered, including how the innate immune response dictates host/pathogen responses and responses to vaccines. To complicate things further, it is becoming increasingly clear that the innate immune response is not a linear pathway but is formed from complex networks and interactions. To further our understanding of the crosstalk and complexities, systems-level analyses and expanded experimental technologies are now needed. In this review, we discuss the most recent immunoprofiling techniques and discuss systems approaches to studying the global innate immune landscape which will inform on the development of personalized medicine and innovative vaccine strategies.
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Affiliation(s)
- Jennifer Connors
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Gina Cusimano
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Nathan Mege
- Tower Health, Reading Hospital, West Reading, PA, USA
| | - Kyra Woloszczuk
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Emily Konopka
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Matthew Bell
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
| | - David Joyner
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Molecular and Cellular Biology, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Jennifer Marcy
- Department of Molecular and Cellular Biology, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Virginie Tardif
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Michele A. Kutzler
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Roshell Muir
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Family, Community, and Preventative Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Elias K. Haddad
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA, USA
- Department of Medicine, Division of Infectious Diseases and HIV Medicine, Drexel University College of Medicine, Philadelphia, PA, USA
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5
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Torres Acosta MA, Mambetsariev N, Reyes Flores CP, Helmin KA, Liu Q, Joudi AM, Morales-Nebreda L, Gurkan J, Cheng K, Abdala-Valencia H, Weinberg SE, Singer BD. AMP-activated protein kinase is necessary for Treg cell functional adaptation to microenvironmental stress. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.29.568904. [PMID: 38076988 PMCID: PMC10705412 DOI: 10.1101/2023.11.29.568904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
CD4+FOXP3+ regulatory T (Treg) cells maintain self-tolerance, suppress the immune response to cancer, and protect against tissue injury in the lung and other organs. Treg cells require mitochondrial metabolism to exert their function, but how Treg cells adapt their metabolic programs to sustain and optimize their function during an immune response occurring in a metabolically stressed microenvironment remains unclear. Here, we tested whether Treg cells require the energy homeostasis-maintaining enzyme AMP-activated protein kinase (AMPK) to adapt to metabolically aberrant microenvironments caused by malignancy or lung injury, finding that AMPK is dispensable for Treg cell immune-homeostatic function but is necessary for full Treg cell function in B16 melanoma tumors and during acute lung injury caused by influenza virus pneumonia. AMPK-deficient Treg cells had lower mitochondrial mass and exhibited an impaired ability to maximize aerobic respiration. Mechanistically, we found that AMPK regulates DNA methyltransferase 1 to promote transcriptional programs associated with mitochondrial function in the tumor microenvironment. In the lung during viral pneumonia, we found that AMPK sustains metabolic homeostasis and mitochondrial activity. Induction of DNA hypomethylation was sufficient to rescue mitochondrial mass in AMPK-deficient Treg cells, linking DNA methylation with AMPK function and mitochondrial metabolism. These results define AMPK as a determinant of Treg cell adaptation to metabolic stress and offer potential therapeutic targets in cancer and tissue injury.
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Affiliation(s)
- Manuel A. Torres Acosta
- Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Medical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Driskill Graduate Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Nurbek Mambetsariev
- Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Carla P. Reyes Flores
- Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Driskill Graduate Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Kathryn A. Helmin
- Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Qianli Liu
- Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Driskill Graduate Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Anthony M. Joudi
- Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Luisa Morales-Nebreda
- Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Jonathan Gurkan
- Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Medical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Driskill Graduate Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Kathleen Cheng
- Medical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Driskill Graduate Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Hiam Abdala-Valencia
- Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Samuel E. Weinberg
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago IL 60611 USA
| | - Benjamin D. Singer
- Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
- Simpson Querrey Lung Institute for Translational Science (SQ LIFTS), Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
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6
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Mikosz A, Ni K, Gally F, Pratte KA, Winfree S, Lin Q, Echelman I, Wetmore B, Cao D, Justice MJ, Sandhaus RA, Maier L, Strange C, Bowler RP, Petrache I, Serban KA. Alpha-1 antitrypsin inhibits fractalkine-mediated monocyte-lung endothelial cell interactions. Am J Physiol Lung Cell Mol Physiol 2023; 325:L711-L725. [PMID: 37814796 PMCID: PMC11068395 DOI: 10.1152/ajplung.00023.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 08/28/2023] [Accepted: 09/20/2023] [Indexed: 10/11/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is characterized by nonresolving inflammation fueled by breach in the endothelial barrier and leukocyte recruitment into the airspaces. Among the ligand-receptor axes that control leukocyte recruitment, the full-length fractalkine ligand (CX3CL1)-receptor (CX3CR1) ensures homeostatic endothelial-leukocyte interactions. Cigarette smoke (CS) exposure and respiratory pathogens increase expression of endothelial sheddases, such as a-disintegrin-and-metalloproteinase-domain 17 (ADAM17, TACE), inhibited by the anti-protease α-1 antitrypsin (AAT). In the systemic endothelium, TACE cleaves CX3CL1 to release soluble CX3CL1 (sCX3CL1). During CS exposure, it is not known whether AAT inhibits sCX3CL1 shedding and CX3CR1+ leukocyte transendothelial migration across lung microvasculature. We investigated the mechanism of sCX3CL1 shedding, its role in endothelial-monocyte interactions, and AAT effect on these interactions during acute inflammation. We used two, CS and lipopolysaccharide (LPS) models of acute inflammation in transgenic Cx3cr1gfp/gfp mice and primary human endothelial cells and monocytes to study sCX3CL1-mediated CX3CR1+ monocyte adhesion and migration. We measured sCX3CL1 levels in plasma and bronchoalveolar lavage (BALF) of individuals with COPD. Both sCX3CL1 shedding and CX3CR1+ monocytes transendothelial migration were triggered by LPS and CS exposure in mice, and were significantly attenuated by AAT. The inhibition of monocyte-endothelial adhesion and migration by AAT was TACE-dependent. Compared with healthy controls, sCX3CL1 levels were increased in plasma and BALF of individuals with COPD, and were associated with clinical parameters of emphysema. Our results indicate that inhibition of sCX3CL1 as well as AAT augmentation may be effective approaches to decrease excessive monocyte lung recruitment during acute and chronic inflammatory states.NEW & NOTEWORTHY Our novel findings that AAT and other inhibitors of TACE, the sheddase that controls full-length fractalkine (CX3CL1) endothelial expression, may provide fine-tuning of the CX3CL1-CX3CR1 axis specifically involved in endothelial-monocyte cross talk and leukocyte recruitment to the alveolar space, suggests that AAT and inhibitors of sCX3CL1 signaling may be harnessed to reduce lung inflammation.
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Affiliation(s)
- Andrew Mikosz
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Kevin Ni
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
- Medical Scientist Training Program, Indiana University School of Medicine, Indianapolis, Indiana, United States
| | - Fabienne Gally
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, Colorado, United States
| | - Katherine A Pratte
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Seth Winfree
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Indiana University, Indianapolis, Indiana, United States
- Department of Anatomy, Cell Biology and Physiology, Indiana University, Indianapolis, Indiana, United States
| | - Qiong Lin
- Department of Medicine, Fuzhou First Hospital Affiliated with Fujian Medical University, Fuzhou, Fujian, China
| | - Isabelle Echelman
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Brianna Wetmore
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Danting Cao
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Colorado, Anschutz Medical Center, Aurora, Colorado, United States
| | - Matthew J Justice
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Robert A Sandhaus
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Lisa Maier
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Colorado, Anschutz Medical Center, Aurora, Colorado, United States
| | - Charlie Strange
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Medical University of South Carolina, Charleston, South Carolina, United States
| | - Russell P Bowler
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Colorado, Anschutz Medical Center, Aurora, Colorado, United States
| | - Irina Petrache
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Indiana University, Indianapolis, Indiana, United States
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Colorado, Anschutz Medical Center, Aurora, Colorado, United States
| | - Karina A Serban
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, United States
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Indiana University, Indianapolis, Indiana, United States
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Colorado, Anschutz Medical Center, Aurora, Colorado, United States
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7
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Morrell ED, Holton SE, Lawrance M, Orlov M, Franklin Z, Mitchem MA, DeBerg H, Gersuk VH, Garay A, Barnes E, Liu T, Peltan ID, Rogers A, Ziegler S, Wurfel MM, Mikacenic C. The transcriptional and phenotypic characteristics that define alveolar macrophage subsets in acute hypoxemic respiratory failure. Nat Commun 2023; 14:7443. [PMID: 37978185 PMCID: PMC10656558 DOI: 10.1038/s41467-023-43223-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023] Open
Abstract
The transcriptional and phenotypic characteristics that define alveolar monocyte and macrophage subsets in acute hypoxemic respiratory failure (AHRF) are poorly understood. Here, we apply CITE-seq (single-cell RNA-sequencing and cell-surface protein quantification) to bronchoalveolar lavage and blood specimens longitudinally collected from participants with AHRF to identify alveolar myeloid subsets, and then validate their identity in an external cohort using flow cytometry. We identify alveolar myeloid subsets with transcriptional profiles that differ from other lung diseases as well as several subsets with similar transcriptional profiles as reported in healthy participants (Metallothionein) or patients with COVID-19 (CD163/LGMN). We use information from CITE-seq to determine cell-surface proteins that distinguish transcriptional subsets (CD14, CD163, CD123, CD71, CD48, CD86 and CD44). In the external cohort, we find a higher proportion of CD163/LGMN alveolar macrophages are associated with mortality in AHRF. We report a parsimonious set of cell-surface proteins that distinguish alveolar myeloid subsets using scalable approaches that can be applied to clinical cohorts.
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Affiliation(s)
- Eric D Morrell
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA.
| | - Sarah E Holton
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Matthew Lawrance
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Marika Orlov
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Aurora, CO, USA
| | - Zoie Franklin
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | | | - Hannah DeBerg
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Vivian H Gersuk
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Ashley Garay
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Elizabeth Barnes
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Ted Liu
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Ithan D Peltan
- Division of Pulmonary and Critical Care Medicine, Intermountain Health, Murray, UT, USA
| | - Angela Rogers
- Division of Pulmonary and Critical Care, Stanford University, Stanford, CA, USA
| | - Steven Ziegler
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Mark M Wurfel
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Carmen Mikacenic
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA.
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8
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Guttenberg M, Vose A, Birukova A, Lewars K, Cumming R, Albright M, Mark J, Salazar C, Swaminathan S, Yu Z, Sokolenko Y, Bunyan E, Yaeger M, Fessler M, Que L, Gowdy K, Misharin A, Tighe R. Tissue-resident alveolar macrophages reduce O 3-induced inflammation via MerTK mediated efferocytosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.06.565865. [PMID: 37986982 PMCID: PMC10659406 DOI: 10.1101/2023.11.06.565865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Lung inflammation, caused by acute exposure to ozone (O3) - one of the six criteria air pollutants - is a significant source of morbidity in susceptible individuals. Alveolar macrophages (AMØs) are the most abundant immune cells in the normal lung and their number increases following O3 exposure. However, the role of AMØs in promoting or limiting O3-induced lung inflammation has not been clearly defined. Here, we used a mouse model of acute O3 exposure, lineage tracing, genetic knockouts, and data from O3-exposed human volunteers to define the role and ontogeny of AMØs during acute O3 exposure. Lineage tracing experiments showed that 12, 24, and 72 h after exposure to O3 (2 ppm) for 3h all AMØs were tissue-resident origin. Similarly, in humans exposed to FA and O3 (200 ppb) for 135 minutes, we did not observe ~21h post-exposure an increase in monocyte-derived AMØs by flow cytometry. Highlighting a role for tissue-resident AMØs, we demonstrate that depletion of tissue-resident AMØs with clodronate-loaded liposomes led to persistence of neutrophils in the alveolar space after O3 exposure, suggesting that impaired neutrophil clearance (i.e., efferocytosis) leads to prolonged lung inflammation. Moreover, depletion of tissue-resident AMØ demonstrated reduced clearance of intratracheally instilled apoptotic Jurkat cells, consistent with reduced efferocytosis. Genetic ablation of MerTK - a key receptor involved in efferocytosis - also resulted in impaired clearance of apoptotic neutrophils followed O3 exposure. Overall, these findings underscore the pivotal role of tissue-resident AMØs in resolving O3-induced inflammation via MerTK-mediated efferocytosis.
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Affiliation(s)
- M.A. Guttenberg
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - A.T. Vose
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - A. Birukova
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - K. Lewars
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - R.I. Cumming
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - M.C. Albright
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - J.I. Mark
- Department of Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - C.J. Salazar
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - S. Swaminathan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - Z. Yu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - Yu.V. Sokolenko
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - E. Bunyan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - M.J. Yaeger
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University, Columbus, OH
| | - M.B. Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC
| | - L.G. Que
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - K.M. Gowdy
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University, Columbus, OH
| | - A.V. Misharin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - R.M. Tighe
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
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9
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Al-Kharashi LA, Alqarni SA, Ahmad SF, Al-Harbi NO, Alsanea S, Ibrahim KE, Algahtani MM, Alhazzani K, Shazly GA, Al-Harbi MM, Nadeem A. BALB/c and C57BL/6 mice differ in oxidant and antioxidant responses in innate and adaptive immune cells in an asthma model induced by cockroach allergens. Int Immunopharmacol 2023; 124:110892. [PMID: 37717317 DOI: 10.1016/j.intimp.2023.110892] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/22/2023] [Accepted: 08/30/2023] [Indexed: 09/19/2023]
Abstract
Asthma is a complex and heterogenous disease affected by a multitude of factors. Several phenotypes of asthma exist which are influenced by various molecular mechanisms that include presence of antioxidant and oxidant enzymes in different immune cells such as dendritic cells (DCs), alveolar macrophages (AMs), neutrophils, and T cells. Close interaction between epithelial cells and dendritic cells initiates complex pathogenesis of asthma followed by involvement of other innate and adaptive immune cells. In chronic phase of the disease, these immune cells support each other in amplification of airway inflammation where oxidant-antioxidant balance is known to be an important contributing factor. Genetic variability in antioxidant response may influence the development of airway inflammation, however it has not been studied in mice yet. The two most studied mice strains, i.e. BALB/c and C57BL/6 are reported to have dissimilar airway responses to the same allergens due to their genetic makeup. In this investigation, we explored whether these strains had any differences in pulmonary oxidant-antioxidant system (Nrf2, SOD2, iNOS, HO-1, nitrotyrosine) in different immune cells (DCs, AMs, neutrophils, T cells), airway inflammation (presence of eosinophils and/or neutrophils) and mucus production in response to repeated cockroach allergen extract (CE) mouse model of asthma. Our data show that C57BL/6 mice had better induction of antioxidant system than BALB/c mice. Consequently, iNOS/nitrotyrosine levels were much exaggerated in BALB/c than C57BL/6 mice. As a result, BALB/c mice developed mixed granulocytic airway inflammation, whereas C57BL/6 developed mostly eosinophilic airway inflammation. Our data suggest that an exaggerated oxidant generation along with a weak antioxidant induction in response to a natural allergen on a susceptible genetic background may determine development of severe asthma phenotype such as mixed granulocyte inflammation.
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Affiliation(s)
- Layla A Al-Kharashi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Saleh A Alqarni
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sheikh F Ahmad
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Naif O Al-Harbi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sary Alsanea
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Khalid E Ibrahim
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad M Algahtani
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Khalid Alhazzani
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Gamal A Shazly
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad M Al-Harbi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
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10
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Chang MY, Brune JE, Black M, Altemeier WA, Frevert CW. Multicompartmental analysis of the murine pulmonary immune response by spectral flow cytometry. Am J Physiol Lung Cell Mol Physiol 2023; 325:L518-L535. [PMID: 37581225 PMCID: PMC10639014 DOI: 10.1152/ajplung.00317.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 07/12/2023] [Accepted: 07/24/2023] [Indexed: 08/16/2023] Open
Abstract
Studies of pulmonary inflammation require unique considerations due to the complex structure and composition of the lungs. The lungs have multiple compartments and diverse immune cell populations, with inherently high autofluorescence, and are involved in the host response to pulmonary pathogens. We describe a protocol that accounts for these factors through a novel combination of methodologies-in vivo compartmental analysis and spectral flow cytometry with a broad panel of antibodies. In vivo compartmental analysis enables the precise localization of immune cells within the marginated vasculature, lung interstitium, nonlavageable airways, and lavageable airways of the lungs, as well as the pulmonary lymph nodes. Spectral flow cytometry with a broad panel of antibodies supports an unbiased exploratory approach to investigating diverse immune cell populations during pulmonary inflammation. Most importantly, spectral flow uses cellular autofluorescence to aid in the resolution and identification of immune cell populations. This methodology enables the acquisition of high-quality data compatible with informed gating and dimensionality reduction algorithms. In addition, our protocol emphasizes considerations for compartmentalization of the inflammatory response, spectral flow panel design, and autofluorescence spectra analysis. These methodologies are critical for increasing the rigor of pulmonary research. We apply this protocol for the precise characterization and localization of leukocytes in the pulmonary host response to influenza A virus in C57BL/6J mice. In particular, we demonstrate that this protocol improves the quantification and localization of alveolar macrophages within the airways. The methodology is modifiable and expandable to allow for further characterization of leukocyte populations of special interest.NEW & NOTEWORTHY We describe a novel combination of methodologies that incorporates dual in vivo compartmental analysis using intravascular and intratracheal CD45 labeling, a broad panel of antibodies for identifying lymphoid and nonlymphoid cells, and spectral flow cytometry that uses cellular autofluorescence to aid in resolving and identifying immune cell populations. This methodology allows precise localization of immune cells in the lavageable airways, nonlavageable airways, interstitial lung tissue, and marginated in the lung vasculature.
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Affiliation(s)
- Mary Y Chang
- Department of Comparative Medicine, University of Washington, Seattle, Washington, United States
- Center for Lung Biology, University of Washington at South Lake Union, Seattle, Washington, United States
| | - Jourdan E Brune
- Department of Comparative Medicine, University of Washington, Seattle, Washington, United States
- Center for Lung Biology, University of Washington at South Lake Union, Seattle, Washington, United States
| | - Michele Black
- Department of Immunology, University of Washington, Seattle, Washington, United States
| | - William A Altemeier
- Center for Lung Biology, University of Washington at South Lake Union, Seattle, Washington, United States
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, Washington, United States
| | - Charles W Frevert
- Department of Comparative Medicine, University of Washington, Seattle, Washington, United States
- Center for Lung Biology, University of Washington at South Lake Union, Seattle, Washington, United States
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, Washington, United States
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11
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Han W, Tanjore H, Liu Y, Hunt RP, Gutor SS, Serezani APM, Blackwell TS. Identification and Characterization of Alveolar and Recruited Lung Macrophages during Acute Lung Inflammation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:1827-1836. [PMID: 37042701 PMCID: PMC10192112 DOI: 10.4049/jimmunol.2200694] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 03/20/2023] [Indexed: 04/13/2023]
Abstract
To precisely identify mouse resident alveolar macrophages (AMs) and bone marrow (BM)-derived macrophages, we developed a technique to separately label AMs and BM-derived macrophages with a fluorescent lipophilic dye followed by FACS. We showed that this technique overcomes issues in cell identification related to dynamic shifts in cell surface markers that occurs during lung inflammation. We then used this approach to track macrophage subsets at different time points after intratracheal (i.t.) instillation of Escherichia coli LPS. By isolating BM-derived macrophages and AMs, we demonstrated that BM-derived macrophages were enriched in expression of genes in signal transduction and immune system activation pathways whereas resident AMs were enriched in cellular processes, such as lysosome/phagosome pathways, efferocytosis, and metabolic pathways related to fatty acids and peroxisomes. Taken together, these data indicate that more accurate identification of macrophage origin can result in improved understanding of differential phenotypes and functions between AMs and BM-derived macrophages in the lungs.
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Affiliation(s)
- Wei Han
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Harikrishna Tanjore
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Yang Liu
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Raphael P Hunt
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Sergey S Gutor
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Ana P M Serezani
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Timothy S Blackwell
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN
- Department of Veterans Affairs Medical Center, Nashville, TN
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12
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Bian F, Lan YW, Zhao S, Deng Z, Shukla S, Acharya A, Donovan J, Le T, Milewski D, Bacchetta M, Hozain AE, Tipograf Y, Chen YW, Xu Y, Shi D, Kalinichenko VV, Kalin TV. Lung endothelial cells regulate pulmonary fibrosis through FOXF1/R-Ras signaling. Nat Commun 2023; 14:2560. [PMID: 37137915 PMCID: PMC10156846 DOI: 10.1038/s41467-023-38177-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 04/18/2023] [Indexed: 05/05/2023] Open
Abstract
Pulmonary fibrosis results from dysregulated lung repair and involves multiple cell types. The role of endothelial cells (EC) in lung fibrosis is poorly understood. Using single cell RNA-sequencing we identified endothelial transcription factors involved in lung fibrogenesis, including FOXF1, SMAD6, ETV6 and LEF1. Focusing on FOXF1, we found that FOXF1 is decreased in EC within human idiopathic pulmonary fibrosis (IPF) and mouse bleomycin-injured lungs. Endothelial-specific Foxf1 inhibition in mice increased collagen depositions, promoted lung inflammation, and impaired R-Ras signaling. In vitro, FOXF1-deficient EC increased proliferation, invasion and activation of human lung fibroblasts, and stimulated macrophage migration by secreting IL-6, TNFα, CCL2 and CXCL1. FOXF1 inhibited TNFα and CCL2 through direct transcriptional activation of Rras gene promoter. Transgenic overexpression or endothelial-specific nanoparticle delivery of Foxf1 cDNA decreased pulmonary fibrosis in bleomycin-injured mice. Nanoparticle delivery of FOXF1 cDNA can be considered for future therapies in IPF.
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Affiliation(s)
- Fenghua Bian
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Ying-Wei Lan
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Shuyang Zhao
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Zicheng Deng
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
- Center for Lung Regenerative Medicine, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
| | - Samriddhi Shukla
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Anusha Acharya
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Johnny Donovan
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Tien Le
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - David Milewski
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
| | - Matthew Bacchetta
- Departments of Thoracic and Cardiac Surgery, Department of Biomedical Engineering, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Ahmed Emad Hozain
- Department of Surgery, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Yuliya Tipograf
- Department of Surgery, State University of New York Downstate Medical Center, Brooklyn, NY, USA
| | - Ya-Wen Chen
- Department of Cell, Developmental, and Regenerative Biology, Department of Otolaryngology, Institute for Airway Sciences, Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yan Xu
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Donglu Shi
- The Materials Science and Engineering Program, College of Engineering and Applied Science, University of Cincinnati, Cincinnati, OH, USA
| | - Vladimir V Kalinichenko
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA
- Center for Lung Regenerative Medicine, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Tanya V Kalin
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children's Research Foundation, Cincinnati, OH, USA.
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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13
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Michki NS, Ndeh R, Helmin KA, Singer BD, McGrath-Morrow SA. DNA methyltransferase inhibition induces dynamic gene expression changes in lung CD4 + T cells of neonatal mice with E. coli pneumonia. Sci Rep 2023; 13:4283. [PMID: 36922640 PMCID: PMC10017701 DOI: 10.1038/s41598-023-31285-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
Bacterial pulmonary infections are a major cause of morbidity and mortality in neonates, with less severity in older children. Previous studies demonstrated that the DNA of CD4+ T cells in the mouse lung, whose primary responsibility is to coordinate the immune response to foreign pathogens, is differentially methylated in neonates compared with juveniles. Nevertheless, the effect of this differential DNA methylation on CD4+ T cell gene expression and response to infection remains unclear. Here we treated E. coli-infected neonatal (4-day-old) and juvenile (13-day-old) mice with decitabine (DAC), a DNA methyltransferase inhibitor with broad-spectrum DNA demethylating activity, and performed simultaneous genome-wide DNA methylation and transcriptional profiling on lung CD4+ T cells. We show that juvenile and neonatal mice experienced differential demethylation in response to DAC treatment, with larger methylation differences observed in neonates. By cross-filtering differentially expressed genes between juveniles and neonates with those sites that were demethylated in neonates, we find that interferon-responsive genes such as Ifit1 are the most down-regulated methylation-sensitive genes in neonatal mice. DAC treatment shifted neonatal lung CD4+ T cells toward a gene expression program similar to that of juveniles. Following lung infection with E. coli, lung CD4+ T cells in neonatal mice exhibit epigenetic repression of important host defense pathways, which are activated by inhibition of DNA methyltransferase activity to resemble a more mature profile.
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Affiliation(s)
- Nigel S Michki
- Children's Hospital of Philadelphia Division of Pulmonary and Sleep Medicine, Philadelphia, PA, 19104, USA.
- Children's Hospital of Philadelphia Division of Cardiology, Philadelphia, PA, 19104, USA.
| | - Roland Ndeh
- Eudowood Division of Pediatric Respiratory Sciences, Johns Hopkins University, Baltimore, MD, 21287, USA
| | - Kathryn A Helmin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University Feinberg School of Medicine Chicago, Chicago, IL, 60611, USA
| | - Benjamin D Singer
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University Feinberg School of Medicine Chicago, Chicago, IL, 60611, USA
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
- Center for Human Immunobiology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Sharon A McGrath-Morrow
- Children's Hospital of Philadelphia Division of Pulmonary and Sleep Medicine, Philadelphia, PA, 19104, USA
- Eudowood Division of Pediatric Respiratory Sciences, Johns Hopkins University, Baltimore, MD, 21287, USA
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA
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14
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Maric D, Corbin L, Greco N, Lorenzo-Redondo R, McRaven MD, Veazey RS, Hope TJ. Temporal and spatial characterization of HIV/SIV infection at anorectal mucosa using rhesus macaque rectal challenge model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.22.529624. [PMID: 36865309 PMCID: PMC9980105 DOI: 10.1101/2023.02.22.529624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
The study described herein is a continuation of our work in which we developed a methodology to identify small foci of transduced cells following rectal challenge of rhesus macaques with a non-replicative luciferase reporter virus. In the current study, the wild-type virus was added to the inoculation mix and twelve rhesus macaques were necropsied 2-4 days after the rectal challenge to study the changes in infected cell phenotype as the infection progressed. Relying on luciferase reporter we noted that both anus and rectum tissues are susceptible to the virus as early as 48h after the challenge. Small regions of the tissue containing luciferase-positive foci were further analyzed microscopically and were found to also contain cells infected by wild-type virus. Phenotypic analysis of the Env and Gag positive cells in these tissues revealed the virus can infect diverse cell populations, including but not limited to Th17 T cells, non Th17 T cells, immature dendritic cells, and myeloid-like cells. The proportions of the infected cell types, however, did not vary much during the first four days of infection when anus and rectum tissues were examined together. Nonetheless, when the same data was analyzed on a tissue-specific basis, we found significant changes in infected cell phenotypes over the course of infection. For anal tissue, a statistically significant increase in infection was observed for Th17 T cells and myeloid-like cells, while in the rectum, the non-Th17 T cells showed the biggest temporal increase, also of statistical significance.
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Affiliation(s)
- Danijela Maric
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
| | - Lisette Corbin
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
- Current affiliation: Emory University School of Medicine, Atlanta, Georgia, USA
| | - Natalie Greco
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
- Current affiliation: Parker Institute for Cancer Immunotherapy, San Francisco, California, USA
| | - Ramon Lorenzo-Redondo
- Northwestern University Feinberg School of Medicine, Department of Medicine, Division of Infectious Diseases, Chicago, Illinois, USA
- Center for Pathogen Genomics and Microbial Evolution, Northwestern University Havey Institute for Global Health, Chicago, Illinois, USA
| | - Michael D. McRaven
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
| | - Ronald S. Veazey
- Tulane National Primate Research Center, Division of Comparative Pathology, Covington, Louisiana, USA
| | - Thomas J. Hope
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
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15
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Tighe RM, Birukova A, Malakhau Y, Kobayashi Y, Vose AT, Chandramohan V, Cyphert-Daly JM, Cumming RI, Kirshner HF, Tata PR, Ingram JL, Gunn MD, Que LG, Yu YRA. Allergic Asthma Responses Are Dependent on Macrophage Ontogeny. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.16.528861. [PMID: 36824904 PMCID: PMC9949163 DOI: 10.1101/2023.02.16.528861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
The ontogenetic composition of tissue-resident macrophages following injury, environmental exposure, or experimental depletion can be altered upon re-establishment of homeostasis. However, the impact of altered resident macrophage ontogenetic milieu on subsequent immune responses is poorly understood. Hence, we assessed the effect of macrophage ontogeny alteration following return to homeostasis on subsequent allergic airway responses to house dust mites (HDM). Using lineage tracing, we confirmed alveolar and interstitial macrophage ontogeny and their replacement by bone marrow-derived macrophages following LPS exposure. This alteration in macrophage ontogenetic milieu reduced allergic airway responses to HDM challenge. In addition, we defined a distinct population of resident-derived interstitial macrophages expressing allergic airway disease genes, located adjacent to terminal bronchi, and reduced by prior LPS exposure. These findings support that the ontogenetic milieu of pulmonary macrophages is a central factor in allergic airway responses and has implications for how prior environmental exposures impact subsequent immune responses and the development of allergy.
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16
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Mulder AHL, Eidhof HHM, Gratama JW. External quality assessment of flow cytometric bronchoalveolar lavage cellular analysis: 20 years' experience in The Netherlands. CYTOMETRY. PART B, CLINICAL CYTOMETRY 2022; 102:451-457. [PMID: 36070226 DOI: 10.1002/cyto.b.22090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/28/2022] [Accepted: 08/23/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND Bronchoalveolar (BAL) cellular analysis can be supportive in the diagnosis of interstitial lung disease. The flow cytometric analysis of BAL fluid cells is complicated by cell fragility and adherence and autofluorescence of macrophages, making conventional analysis of BAL fluid cells as done in external quality schemes (EQA) for blood lymphocyte subsets, not representative. Following a procedure for stabilized BAL cells, a separate EQA was set up. The results of 20 years' experience are presented. METHODS From each round between 2000 and 2020 the following flow cytometric parameters were recorded from each participant: total lymphocyte population (TLY), CD3+ lymphocytes, CD3+ CD4+ lymphocytes, CD3+ CD8+ lymphocytes, CD3- CD16+/56+ lymphocytes, CD19+ lymphocytes and CD103 + CD3+ lymphocytes. In addition, the eosinophils and neutrophils were recorded. The mean and standard deviation of each parameter per round were calculated. The 40 rounds were divided in four respective groups of 10 in order to compare the results as function of time. In addition the interpretation of the results of participants was scored. RESULTS The median SD in the four groups was below 10% for all parameters except for TLY and the CD103+ CD3+ lymphocytes. No improvement in time was observed for any (sub)population except for the CD3+ CD4+ subset. Interpretation of the results varied based on disease, with greatest consensus for sarcoidosis cases and lowest for nonspecific interstitial lung disease cases. CONCLUSIONS A dedicated EQA for BAL fluid cellular analysis appears to be justified as the test material is substantially different from that of peripheral blood. We show that adequate analytical and post-analytical quality control can be achieved.
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Affiliation(s)
- A H Leontine Mulder
- Medlon B.V., Department of Clinical Chemistry and Laboratory Medicine, Enschede and Clinical Chemistry, Ziekenhuis Groep Twente, Almelo, The Netherlands
| | - Harrie H M Eidhof
- Medlon B.V., Department of Clinical Chemistry and Laboratory Medicine, Ziekenhuis Groep Twente, Enschede, The Netherlands
| | - Jan W Gratama
- Department of Medical Oncology, Erasmus MC, Rotterdam, The Netherlands
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17
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Zhang R, Chen S, Chen L, Ye L, Jiang Y, Peng H, Guo Z, Li M, Jiang X, Guo P, Yu D, Zhang R, Niu Y, Zhuang Y, Aschner M, Zheng Y, Li D, Chen W. Single-cell transcriptomics reveals immune dysregulation mediated by IL-17A in initiation of chronic lung injuries upon real-ambient particulate matter exposure. Part Fibre Toxicol 2022; 19:42. [PMID: 35739565 PMCID: PMC9219231 DOI: 10.1186/s12989-022-00483-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/07/2022] [Indexed: 11/21/2022] Open
Abstract
Background Long-term exposure to fine particulate matter (PM2.5) increases susceptibility to chronic respiratory diseases, including inflammation and interstitial fibrosis. However, the regulatory mechanisms by which the immune response mediates the initiation of pulmonary fibrosis has yet to be fully characterized. This study aimed to illustrate the interplay between different cell clusters and key pathways in triggering chronic lung injuries in mice following PM exposure. Results Six-week-old C57BL/6J male mice were exposed to PM or filtered air for 16 weeks in a real-ambient PM exposure system in Shijiazhuang, China. The transcriptional profiles of whole lung cells following sub-chronic PM exposure were characterized by analysis of single-cell transcriptomics. The IL-17A knockout (IL-17A−/−) mouse model was utilized to determine whether the IL-17 signaling pathway mediated immune dysregulation in PM-induced chronic lung injuries. After 16-week PM exposure, chronic lung injuries with excessive collagen deposition and increased fibroblasts, neutrophils, and monocytes were noted concurrent with a decreased number of major classes of immune cells. Single-cell analysis showed that activation of the IL-17 signaling pathway was involved in the progression of pulmonary fibrosis upon sub-chronic PM exposure. Depletion of IL-17A led to significant decline in chronic lung injuries, which was mainly triggered by reduced recruitment of myeloid-derived suppressor cells (MDSCs) and downregulation of TGF-β. Conclusion These novel findings demonstrate that immunosuppression via the IL-17A pathway plays a critical role in the initiation of chronic lung injuries upon sub-chronic PM exposure. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-022-00483-w.
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Affiliation(s)
- Rui Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Shen Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Liping Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Lizhu Ye
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Yue Jiang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Hui Peng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Zhanyu Guo
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Miao Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xinhang Jiang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Ping Guo
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Dianke Yu
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Rong Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
| | - Yujie Niu
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
| | - Yuan Zhuang
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy and Laboratory Medicine, Third Military Medical University, Chongqing, 400038, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY, 10461, USA
| | - Yuxin Zheng
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Daochuan Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China.
| | - Wen Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, China.
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18
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Lee ACH, Edobor A, Lysandrou M, Mirle V, Sadek A, Johnston L, Piech R, Rose R, Hart J, Amundsen B, Jendrisak M, Millis JM, Donington J, Madariaga ML, Barth RN, di Sabato D, Shanmugarajah K, Fung J. The Effect of Normothermic Machine Perfusion on the Immune Profile of Donor Liver. Front Immunol 2022; 13:788935. [PMID: 35720395 PMCID: PMC9201055 DOI: 10.3389/fimmu.2022.788935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 05/02/2022] [Indexed: 12/29/2022] Open
Abstract
Background Normothermic machine perfusion (NMP) allows viability assessment and potential resuscitation of donor livers prior to transplantation. The immunological effect of NMP on liver allografts is undetermined, with potential implications on allograft function, rejection outcomes and overall survival. In this study we define the changes in immune profile of human livers during NMP. Methods Six human livers were placed on a NMP device. Tissue and perfusate samples were obtained during cold storage prior to perfusion and at 1, 3, and 6 hours of perfusion. Flow cytometry, immunohistochemistry, and bead-based immunoassays were used to measure leukocyte composition and cytokines in the perfusate and within the liver tissue. Mean values between baseline and time points were compared by Student’s t-test. Results Within circulating perfusate, significantly increased frequencies of CD4 T cells, B cells and eosinophils were detectable by 1 hour of NMP and continued to increase at 6 hours of perfusion. On the other hand, NK cell frequency significantly decreased by 1 hour of NMP and remained decreased for the duration of perfusion. Within the liver tissue there was significantly increased B cell frequency but decreased neutrophils detectable at 6 hours of NMP. A transient decrease in intermediate monocyte frequency was detectable in liver tissue during the middle of the perfusion run. Overall, no significant differences were detectable in tissue resident T regulatory cells during NMP. Significantly increased levels of pro-inflammatory and anti-inflammatory cytokines were seen following initiation of NMP that continued to rise throughout duration of perfusion. Conclusions Time-dependent dynamic changes are seen in individual leukocyte cell-types within both perfusate and tissue compartments of donor livers during NMP. This suggests a potential role of NMP in altering the immunogenicity of donor livers prior to transplant. These data also provide insights for future work to recondition the intrinsic immune profile of donor livers during NMP prior to transplantation.
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Affiliation(s)
| | - Arianna Edobor
- Department of Surgery, University of Chicago, Chicago, IL, United States
| | - Maria Lysandrou
- Biological Sciences Division, University of Chicago, Chicago, IL, United States
| | - Vikranth Mirle
- Pritzker School of Medicine, University of Chicago, Chicago, IL, United States
| | - Amir Sadek
- Department of Surgery, University of Chicago, Chicago, IL, United States
| | - Laura Johnston
- Biological Sciences Division, University of Chicago, Chicago, IL, United States
| | - Ryan Piech
- Department of Surgery, University of Chicago, Chicago, IL, United States
| | - Rebecca Rose
- Department of Surgery, University of Chicago, Chicago, IL, United States
| | - John Hart
- Department of Pathology, University of Chicago, Chicago, IL, United States
| | - Beth Amundsen
- Gift of Hope Tissue and Donor Network, Itasca, IL, United States
| | - Martin Jendrisak
- Gift of Hope Tissue and Donor Network, Itasca, IL, United States
| | | | - Jessica Donington
- Section of Transplant Surgery, Department of Surgery, University of Chicago, Chicago, IL, United States
| | - Maria Lucia Madariaga
- Section of Transplant Surgery, Department of Surgery, University of Chicago, Chicago, IL, United States
| | - Rolf N Barth
- Section of Thoracic Surgery, Department of Surgery, University of Chicago, Chicago, IL, United States
| | - Diego di Sabato
- Section of Thoracic Surgery, Department of Surgery, University of Chicago, Chicago, IL, United States
| | | | - John Fung
- Section of Thoracic Surgery, Department of Surgery, University of Chicago, Chicago, IL, United States
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19
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Cell-Surface Programmed Death Ligand-1 Expression Identifies a Sub-Population of Distal Epithelial Cells Enriched in Idiopathic Pulmonary Fibrosis. Cells 2022; 11:cells11101593. [PMID: 35626630 PMCID: PMC9139571 DOI: 10.3390/cells11101593] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 03/24/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023] Open
Abstract
Idiopathic lung fibrosis (IPF) is a fatal lung disease characterized by chronic epithelial injury and exhausted repair capacity of the alveolar compartment, associated with the expansion of cells with intermediate alveolar epithelial cell (AT2) characteristics. Using SftpcCreERT2/+: tdTomatoflox/flox mice, we previously identified a lung population of quiescent injury-activated alveolar epithelial progenitors (IAAPs), marked by low expression of the AT2 lineage trace marker tdTomato (Tomlow) and characterized by high levels of Pd-l1 (Cd274) expression. This led us to hypothesize that a population with similar properties exists in the human lung. To that end, we used flow cytometry to characterize the CD274 cell-surface expression in lung epithelial cells isolated from donor and end-stage IPF lungs. The identity and functional behavior of these cells were further characterized by qPCR analysis, in vitro organoid formation, and ex vivo precision-cut lung slices (PCLSs). Our analysis led to the identification of a population of CD274pos cells expressing intermediate levels of SFTPC, which was expanded in IPF lungs. While donor CD274pos cells initiated clone formation, they did not expand significantly in 3D organoids in AT2-supportive conditions. However, an increased number of CD274pos cells was found in cultured PCLS. In conclusion, we demonstrate that, similar to IAAPs in the mouse lung, a population of CD274-expressing cells exists in the normal human lung, and this population is expanded in the IPF lung and in an ex vivo PCLS assay, suggestive of progenitor cell behavior. CD274 function in these cells as a checkpoint inhibitor may be crucial for their progenitor function, suggesting that CD274 inhibition, unless specifically targeted, might further injure the already precarious lung epithelial compartment in IPF.
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20
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Sun J, Wu S, Jin Z, Ren S, Cho WC, Zhu C, Shen J. Lymph node micrometastasis in non-small cell lung cancer. Biomed Pharmacother 2022; 149:112817. [PMID: 35303567 DOI: 10.1016/j.biopha.2022.112817] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/25/2022] [Accepted: 03/09/2022] [Indexed: 11/18/2022] Open
Abstract
Lung cancer has some of the highest morbidity and mortality rates of all cancers, and an important risk factor for mortality in patients with lung cancer is tumor metastasis. Even if a tumor is completely removed at an early stage of the disease, quite a number of patients still have the risk of recurrence. With the advent of molecular diagnostic and therapeutics, more and more studies have found that a poor prognosis may be related to lymph node micrometastasis. However, clinicians still find that predicting the prognosis and choosing the type of surgery and postoperative adjuvant chemotherapy are still challenging. Thus, this article reviews the current research status of lymph node micrometastasis in non-small cell lung cancer, envision to provide some updates and insights in this area.
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Affiliation(s)
- Jiajing Sun
- Taizhou Hospital, Zhejiang University, Taizhou, China
| | - Sikai Wu
- Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Taizhou, China
| | - Zixian Jin
- Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Taizhou, China
| | - Sijia Ren
- Taizhou Hospital, Zhejiang University, Taizhou, China
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, China
| | - Chengchu Zhu
- Taizhou Hospital, Zhejiang University, Taizhou, China.
| | - Jianfei Shen
- Taizhou Hospital, Zhejiang University, Taizhou, China.
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21
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Lee ACH, Edobor A, Wigakumar T, Lysandrou M, Johnston LK, McMullen P, Mirle V, Diaz A, Piech R, Rose R, Jendrisak M, di Sabato D, Shanmugarajah K, Fung J, Donington J, Madariaga ML. Donor leukocyte trafficking during human ex vivo lung perfusion. Clin Transplant 2022; 36:e14670. [PMID: 35396887 PMCID: PMC9540615 DOI: 10.1111/ctr.14670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/09/2022] [Accepted: 04/04/2022] [Indexed: 11/30/2022]
Abstract
Background Ex vivo lung perfusion (EVLP) is used to assess and preserve lungs prior to transplantation. However, its inherent immunomodulatory effects are not completely understood. We examine perfusate and tissue compartments to determine the change in immune cell composition in human lungs maintained on EVLP. Methods Six human lungs unsuitable for transplantation underwent EVLP. Tissue and perfusate samples were obtained during cold storage and at 1‐, 3‐ and 6‐h during perfusion. Flow cytometry, immunohistochemistry, and bead‐based immunoassays were used to measure leukocyte composition and cytokines. Mean values between baseline and time points were compared by Student's t test. Results During the 1st hour of perfusion, perfusate neutrophils increased (+22.2 ± 13.5%, p < 0.05), monocytes decreased (−77.5 ± 8.6%, p < 0.01) and NK cells decreased (−61.5 ± 22.6%, p < 0.01) compared to cold storage. In contrast, tissue neutrophils decreased (−22.1 ± 12.2%, p < 0.05) with no change in monocytes and NK cells. By 6 h, perfusate neutrophils, NK cells, and tissue neutrophils were similar to baseline. Perfusate monocytes remained decreased, while tissue monocytes remained unchanged. There was no significant change in B cells or T cell subsets. Pro‐inflammatory cytokines (IL‐1b, G‐CSF, IFN‐gamma, CXCL2, CXCL1 granzyme A, and granzyme B) and lymphocyte activating cytokines (IL‐2, IL‐4, IL‐6, IL‐8) increased during perfusion. Conclusions Early mobilization of innate immune cells occurs in both perfusate and tissue compartments during EVLP, with neutrophils and NK cells returning to baseline and monocytes remaining depleted after 6 h. The immunomodulatory effect of EVLP may provide a therapeutic window to decrease the immunogenicity of lungs prior to transplantation.
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Affiliation(s)
| | - Arianna Edobor
- Department of Surgery, University of Chicago, Chicago, Illinois, USA
| | | | - Maria Lysandrou
- Department of Surgery, University of Chicago, Chicago, Illinois, USA
| | - Laura K Johnston
- Office of Shared Research Facilities, University of Chicago, Chicago, Illinois, USA
| | - Phillip McMullen
- Department of Pathology, University of Chicago, Chicago, Illinois, USA
| | - Vikranth Mirle
- Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Ashley Diaz
- Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Ryan Piech
- Department of Surgery, University of Chicago, Chicago, Illinois, USA
| | - Rebecca Rose
- Department of Surgery, University of Chicago, Chicago, Illinois, USA
| | | | - Diego di Sabato
- Department of Surgery, University of Chicago, Chicago, Illinois, USA
| | | | - John Fung
- Department of Surgery, University of Chicago, Chicago, Illinois, USA
| | - Jessica Donington
- Department of Surgery, University of Chicago, Chicago, Illinois, USA
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22
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Wanner N, Barnhart J, Apostolakis N, Zlojutro V, Asosingh K. Using the Autofluorescence Finder on the Sony ID7000 TM Spectral Cell Analyzer to Identify and Unmix Multiple Highly Autofluorescent Murine Lung Populations. Front Bioeng Biotechnol 2022; 10:827987. [PMID: 35372303 PMCID: PMC8965042 DOI: 10.3389/fbioe.2022.827987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/25/2022] [Indexed: 11/13/2022] Open
Abstract
Autofluorescence (AF) is a feature of all cell types, though some have more than others. In tissues with complex heterogeneous cellularity, AF is frequently a source of high background, masking faint fluorescent signals and reducing the available dynamic range of detectors for detecting fluorescence signals from markers of interest in a flow cytometry panel. Pulmonary flow cytometry presents unique challenges because lung cells are heterogeneous and contain varying amounts of high AF. The goal of this study was to demonstrate how a novel AF Finder tool on the Sony ID7000™ Spectral Cell Analyzer can be used to identify and screen multiple AF subsets in complex highly AF tissues like murine lungs. In lung single cell suspensions, the AF Finder tool identified four distinct AF spectra from six highly AF subsets. The subtraction of these distinct AF spectra resulted in a resolution increase by several log decades in several fluorescent channels. The major immune and lung tissue resident cells in a murine model of asthma were easily identified in a multi-color panel using AF subtraction. The findings demonstrate the practicality of the AF Finder tool, particularly when analyzing samples with multiple AF populations of varying intensities, in order to reduce fluorescence background and increase signal resolution in spectral flow cytometry.
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Affiliation(s)
- Nicholas Wanner
- Asosingh Lab, Department of Inflammation and Immunity, Cleveland Clinic, Lerner Research Institute, Cleveland, OH, United States
| | | | - Nicholas Apostolakis
- Asosingh Lab, Department of Inflammation and Immunity, Cleveland Clinic, Lerner Research Institute, Cleveland, OH, United States
| | - Violetta Zlojutro
- Asosingh Lab, Department of Inflammation and Immunity, Cleveland Clinic, Lerner Research Institute, Cleveland, OH, United States
| | - Kewal Asosingh
- Asosingh Lab, Department of Inflammation and Immunity, Cleveland Clinic, Lerner Research Institute, Cleveland, OH, United States
- Flow Cytometry Core, Cleveland Clinic, Lerner Research Institute, Cleveland, OH, United States
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23
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Wasnick RM, Shalashova I, Wilhelm J, Khadim A, Schmidt N, Hackstein H, Hecker A, Hoetzenecker K, Seeger W, Bellusci S, El Agha E, Ruppert C, Guenther A. Differential LysoTracker Uptake Defines Two Populations of Distal Epithelial Cells in Idiopathic Pulmonary Fibrosis. Cells 2022; 11:235. [PMID: 35053350 PMCID: PMC8773634 DOI: 10.3390/cells11020235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/26/2021] [Accepted: 01/04/2022] [Indexed: 12/18/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal degenerative lung disease of unknown etiology. Although in its final stages it implicates, in a reactive manner, all lung cell types, the initial damage involves the alveolar epithelial compartment, in particular the alveolar epithelial type 2 cells (AEC2s). AEC2s serve dual progenitor and surfactant secreting functions, both of which are deeply impacted in IPF. Thus, we hypothesize that the size of the surfactant processing compartment, as measured by LysoTracker incorporation, allows the identification of different epithelial states in the IPF lung. Flow cytometry analysis of epithelial LysoTracker incorporation delineates two populations (Lysohigh and Lysolow) of AEC2s that behave in a compensatory manner during bleomycin injury and in the donor/IPF lung. Employing flow cytometry and transcriptomic analysis of cells isolated from donor and IPF lungs, we demonstrate that the Lysohigh population expresses all classical AEC2 markers and is drastically diminished in IPF. The Lysolow population, which is increased in proportion in IPF, co-expressed AEC2 and basal cell markers, resembling the phenotype of the previously identified intermediate AEC2 population in the IPF lung. In that regard, we provide an in-depth flow-cytometry characterization of LysoTracker uptake, HTII-280, proSP-C, mature SP-B, NGFR, KRT5, and CD24 expression in human lung epithelial cells. Combining functional analysis with extracellular and intracellular marker expression and transcriptomic analysis, we advance the current understanding of epithelial cell behavior and fate in lung fibrosis.
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Affiliation(s)
- Roxana Maria Wasnick
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
| | - Irina Shalashova
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
| | - Jochen Wilhelm
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
- Excellence Cluster Cardiopulmonary Institute (CPI), 35392 Giessen, Germany
- Max-Planck-Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
- Institute for Lung Health (ILH), 35392 Giessen, Germany
| | - Ali Khadim
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
- Institute for Lung Health (ILH), 35392 Giessen, Germany
| | - Nicolai Schmidt
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
| | - Holger Hackstein
- Department of Clinical Immunology and Transfusion Medicine, 35392 Giessen, Germany;
| | - Andreas Hecker
- Department of General and Thoracic Surgery, University Hospital Giessen, 35392 Giessen, Germany;
| | - Konrad Hoetzenecker
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria;
| | - Werner Seeger
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
- Excellence Cluster Cardiopulmonary Institute (CPI), 35392 Giessen, Germany
- Max-Planck-Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
- Institute for Lung Health (ILH), 35392 Giessen, Germany
| | - Saverio Bellusci
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
- Excellence Cluster Cardiopulmonary Institute (CPI), 35392 Giessen, Germany
- Institute for Lung Health (ILH), 35392 Giessen, Germany
| | - Elie El Agha
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
- Institute for Lung Health (ILH), 35392 Giessen, Germany
| | - Clemens Ruppert
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
- Excellence Cluster Cardiopulmonary Institute (CPI), 35392 Giessen, Germany
- European IPF Registry/UGLMC Giessen Biobank, 35392 Giessen, Germany
| | - Andreas Guenther
- Universities of Giessen and Marburg Lung Center (UGMLC), The German Center for Lung Research (DZL), 35392 Giessen, Germany; (I.S.); (J.W.); (A.K.); (N.S.); (W.S.); (S.B.); (E.E.A.); (C.R.); (A.G.)
- Excellence Cluster Cardiopulmonary Institute (CPI), 35392 Giessen, Germany
- Institute for Lung Health (ILH), 35392 Giessen, Germany
- Department of General and Thoracic Surgery, University Hospital Giessen, 35392 Giessen, Germany;
- European IPF Registry/UGLMC Giessen Biobank, 35392 Giessen, Germany
- Lung Clinic Waldhof-Elgershausen, 35753 Greifenstein, Germany
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24
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Schenkel AR, Mitchell JD, Cool CD, Bai X, Groshong S, Koelsch T, Verma D, Ordway D, Chan ED. Characterization of Immune Cells From the Lungs of Patients With Chronic Non-Tuberculous Mycobacteria or Pseudomonas aeruginosa Infection. Immune Netw 2022; 22:e27. [PMID: 35799709 PMCID: PMC9250871 DOI: 10.4110/in.2022.22.e27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 12/01/2022] Open
Abstract
Little is known of the lung cellular immunophenotypes in patients with non-tuberculous mycobacterial lung disease (NTM-LD). Flow-cytometric analyses for the major myeloid and lymphoid cell subsets were performed in less- and more-diseased areas of surgically resected lungs from six patients with NTM-LD and two with Pseudomonas aeruginosa lung disease (PsA-LD). Lymphocytes, comprised mainly of NK cells, CD4+ and CD8+ T cells, and B cells, accounted for ~60% of all leukocytes, with greater prevalence of T and B cells in more-diseased areas. In contrast, fewer neutrophils were found with decreased number in more-diseased areas. Compared to NTM-LD, lung tissues from patients with PsA-LD demonstrated relatively lower numbers of T and B lymphocytes but similar numbers of NK cells. While this study demonstrated a large influx of lymphocytes into the lungs of patients with chronic NTM-LD, further analyses of their phenotypes are necessary to determine the significance of these findings.
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Affiliation(s)
- Alan R. Schenkel
- Department of Microbiology, Immunology, & Pathology, Colorado State University, Fort Collins, CO 80523, USA
| | - John D. Mitchell
- Division of Cardiothoracic Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Carlyne D. Cool
- Department of Pathology, National Jewish Health, Denver, CO 80206, USA
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Xiyuan Bai
- Department of Academic Affairs, National Jewish Health, Denver, CO 80206, USA
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Steve Groshong
- Department of Pathology, National Jewish Health, Denver, CO 80206, USA
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Tilman Koelsch
- Department of Radiology, National Jewish Health, Denver, CO 80206, USA
| | - Deepshikha Verma
- Department of Microbiology, Immunology, & Pathology, Colorado State University, Fort Collins, CO 80523, USA
| | - Diane Ordway
- Department of Microbiology, Immunology, & Pathology, Colorado State University, Fort Collins, CO 80523, USA
| | - Edward D. Chan
- Department of Academic Affairs, National Jewish Health, Denver, CO 80206, USA
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA
- Pulmonary Section, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO 80045, USA
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25
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Gschwend J, Sherman SP, Ridder F, Feng X, Liang HE, Locksley RM, Becher B, Schneider C. Alveolar macrophages rely on GM-CSF from alveolar epithelial type 2 cells before and after birth. J Exp Med 2021; 218:e20210745. [PMID: 34431978 PMCID: PMC8404471 DOI: 10.1084/jem.20210745] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/27/2021] [Accepted: 08/04/2021] [Indexed: 12/31/2022] Open
Abstract
Programs defining tissue-resident macrophage identity depend on local environmental cues. For alveolar macrophages (AMs), these signals are provided by immune and nonimmune cells and include GM-CSF (CSF2). However, evidence to functionally link components of this intercellular cross talk remains scarce. We thus developed new transgenic mice to profile pulmonary GM-CSF expression, which we detected in both immune cells, including group 2 innate lymphoid cells and γδ T cells, as well as AT2s. AMs were unaffected by constitutive deletion of hematopoietic Csf2 and basophil depletion. Instead, AT2 lineage-specific constitutive and inducible Csf2 deletion revealed the nonredundant function of AT2-derived GM-CSF in instructing AM fate, establishing the postnatal AM compartment, and maintaining AMs in adult lungs. This AT2-AM relationship begins during embryogenesis, where nascent AT2s timely induce GM-CSF expression to support the proliferation and differentiation of fetal monocytes contemporaneously seeding the tissue, and persists into adulthood, when epithelial GM-CSF remains restricted to AT2s.
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Affiliation(s)
- Julia Gschwend
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | | | - Frederike Ridder
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Xiaogang Feng
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Hong-Erh Liang
- Department of Medicine, University of California San Francisco, San Francisco, CA
| | - Richard M. Locksley
- Department of Medicine, University of California San Francisco, San Francisco, CA
- Department of Microbiology & Immunology, University of California San Francisco, San Francisco, CA
- Howard Hughes Medical Institute, University of California San Francisco, San Francisco, CA
| | - Burkhard Becher
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
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26
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The IL-10GFP (VeRT-X) mouse strain is not suitable for the detection of IL-10 production by granulocytes during lung inflammation. PLoS One 2021; 16:e0247895. [PMID: 33979348 PMCID: PMC8115804 DOI: 10.1371/journal.pone.0247895] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/27/2021] [Indexed: 11/19/2022] Open
Abstract
The clear and unequivocal identification of immune effector functions is essential to understand immune responses. The cytokine IL-10 is a critical immune regulator and was shown, for example, to limit pathology during various lung diseases. However, the clear identification of IL-10-producing cells is challenging and, therefore, reporter mouse lines were developed to facilitate their detection. Several such reporter lines utilize GFP, including the IL-10GFP (VeRT-X) reporter strain studied here. In line with previous reports, we found that this IL-10GFP line faithfully reports on the IL-10 production of lymphoid cells. However, we show that the IL-10GFP reporter is not suitable to analyse IL-10 production of myeloid cells during inflammation. During inflammation, the autofluorescence of myeloid cells increased to an extent that entirely masked the IL-10-specific GFP-signal. Our data illustrate a general and important technical caveat using GFP-reporter lines for the analysis of myeloid cells and suggest that previous reports on effector functions of myeloid cells using such GFP-based reporters might require re-evaluation.
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27
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Guttenberg MA, Vose AT, Tighe RM. Role of Innate Immune System in Environmental Lung Diseases. Curr Allergy Asthma Rep 2021; 21:34. [PMID: 33970346 PMCID: PMC8311569 DOI: 10.1007/s11882-021-01011-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2021] [Indexed: 01/07/2023]
Abstract
The lung mucosa functions as a principal barrier between the body and inhaled environmental irritants and pathogens. Precise and targeted surveillance mechanisms are required at this lung-environment interface to maintain homeostasis and preserve gas exchange. This is performed by the innate immune system, a germline-encoded system that regulates initial responses to foreign irritants and pathogens. Environmental pollutants, such as particulate matter (PM), ozone (O3), and other products of combustion (NO2, SO3, etc.), both stimulate and disrupt the function of the innate immune system of the lung, leading to the potential for pathologic consequences. PURPOSE OF REVIEW: The purpose of this review is to explore recent discoveries and investigations into the role of the innate immune system in responding to environmental exposures. This focuses on mechanisms by which the normal function of the innate immune system is modified by environmental agents leading to disruptions in respiratory function. RECENT FINDINGS: This is a narrative review of mechanisms of pulmonary innate immunity and the impact of environmental exposures on these responses. Recent findings highlighted in this review are categorized by specific components of innate immunity including epithelial function, macrophages, pattern recognition receptors, and the microbiome. Overall, the review supports broad impacts of environmental exposures to alterations to normal innate immune functions and has important implications for incidence and exacerbations of lung disease. The innate immune system plays a critical role in maintaining pulmonary homeostasis in response to inhaled air pollutants. As many of these agents are unable to be mitigated, understanding their mechanistic impact is critical to develop future interventions to limit their pathologic consequences.
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Affiliation(s)
| | | | - Robert M. Tighe
- Department of Medicine, Duke University, Durham, NC,Corresponding Author: Robert M Tighe, MD, Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University Medical Center, Box 2969, Durham, North Carolina 27710, Telephone: 919-684-4894, Fax: 919-684-5266,
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28
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Takiguchi H, Yang CX, Yang CWT, Sahin B, Whalen BA, Milne S, Akata K, Yamasaki K, Yang JSW, Cheung CY, Vander Werff R, McNagny KM, Leitao Filho FS, Shaipanich T, van Eeden SF, Obeidat M, Leung JM, Sin DD. Macrophages with reduced expressions of classical M1 and M2 surface markers in human bronchoalveolar lavage fluid exhibit pro-inflammatory gene signatures. Sci Rep 2021; 11:8282. [PMID: 33859282 PMCID: PMC8050093 DOI: 10.1038/s41598-021-87720-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 04/01/2021] [Indexed: 02/01/2023] Open
Abstract
The classical M1/M2 polarity of macrophages may not be applicable to inflammatory lung diseases including chronic obstructive pulmonary disease (COPD) due to the complex microenvironment in lungs and the plasticity of macrophages. We examined macrophage sub-phenotypes in bronchoalveolar lavage (BAL) fluid in 25 participants with CD40 (a M1 marker) and CD163 (a M2 marker). Of these, we performed RNA-sequencing on each subtype in 10 patients using the Illumina NextSeq 500. Approximately 25% of the macrophages did not harbor classical M1 or M2 surface markers (double negative, DN), and these cells were significantly enriched in COPD patients compared with non-COPD patients (46.7% vs. 14.5%, p < 0.001). 1886 genes were differentially expressed in the DN subtype compared with all other subtypes at a 10% false discovery rate. The 602 up-regulated genes included 15 mitochondrial genes and were enriched in 86 gene ontology (GO) biological processes including inflammatory responses. Modules associated with cellular functions including oxidative phosphorylation were significantly down-regulated in the DN subtype. Macrophages in the human BAL fluid, which were negative for both M1/M2 surface markers, harbored a gene signature that was pro-inflammatory and suggested dysfunction in cellular homeostasis. These macrophages may contribute to the pathogenesis and manifestations of inflammatory lung diseases such as COPD.
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Affiliation(s)
- Hiroto Takiguchi
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada.,Division of Pulmonary Medicine, Department of Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Chen X Yang
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Cheng Wei Tony Yang
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Basak Sahin
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Beth A Whalen
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Stephen Milne
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada.,Division of Respiratory Medicine, UBC Department of Medicine, Vancouver, BC, Canada.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Kentaro Akata
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Kei Yamasaki
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Julia Shun Wei Yang
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Chung Yan Cheung
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Ryan Vander Werff
- The Biomedical Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Kelly M McNagny
- The Biomedical Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Fernando Sergio Leitao Filho
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Tawimas Shaipanich
- Division of Respiratory Medicine, UBC Department of Medicine, Vancouver, BC, Canada
| | - Stephan F van Eeden
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada.,Division of Respiratory Medicine, UBC Department of Medicine, Vancouver, BC, Canada
| | - Ma'en Obeidat
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada
| | - Janice M Leung
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada.,Division of Respiratory Medicine, UBC Department of Medicine, Vancouver, BC, Canada
| | - Don D Sin
- St Paul's Hospital, The University of British Columbia (UBC) Centre for Heart Lung Innovation (HLI), Vancouver, BC, Canada. .,Division of Respiratory Medicine, UBC Department of Medicine, Vancouver, BC, Canada.
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29
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Morales-Nebreda L, Helmin KA, Torres Acosta MA, Markov NS, Hu JYS, Joudi AM, Piseaux-Aillon R, Abdala-Valencia H, Politanska Y, Singer BD. Aging imparts cell-autonomous dysfunction to regulatory T cells during recovery from influenza pneumonia. JCI Insight 2021; 6:141690. [PMID: 33600379 PMCID: PMC8026188 DOI: 10.1172/jci.insight.141690] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 02/17/2021] [Indexed: 01/05/2023] Open
Abstract
Regulatory T (Treg) cells orchestrate resolution and repair of acute lung inflammation and injury after viral pneumonia. Compared with younger patients, older individuals experience impaired recovery and worse clinical outcomes after severe viral infections, including influenza and SARS coronavirus 2 (SARS-CoV-2). Whether age is a key determinant of Treg cell prorepair function after lung injury remains unknown. Here, we showed that aging results in a cell-autonomous impairment of reparative Treg cell function after experimental influenza pneumonia. Transcriptional and DNA methylation profiling of sorted Treg cells provided insight into the mechanisms underlying their age-related dysfunction, with Treg cells from aged mice demonstrating both loss of reparative programs and gain of maladaptive programs. Strategies to restore youthful Treg cell functional programs could be leveraged as therapies to improve outcomes among older individuals with severe viral pneumonia.
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MESH Headings
- Age Factors
- Aging/metabolism
- Aging/physiology
- Animals
- COVID-19/complications
- COVID-19/metabolism
- COVID-19/pathology
- COVID-19/virology
- Humans
- Influenza A virus
- Influenza, Human/complications
- Influenza, Human/metabolism
- Influenza, Human/pathology
- Influenza, Human/virology
- Lung/metabolism
- Lung/pathology
- Mice, Inbred C57BL
- Pneumonia, Viral/etiology
- Pneumonia, Viral/metabolism
- Pneumonia, Viral/pathology
- Pneumonia, Viral/virology
- SARS-CoV-2
- T-Lymphocytes, Regulatory/metabolism
- T-Lymphocytes, Regulatory/pathology
- Mice
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Affiliation(s)
| | - Kathryn A. Helmin
- Department of Medicine, Division of Pulmonary and Critical Care Medicine
| | | | - Nikolay S. Markov
- Department of Medicine, Division of Pulmonary and Critical Care Medicine
| | | | - Anthony M. Joudi
- Department of Medicine, Division of Pulmonary and Critical Care Medicine
| | | | | | - Yuliya Politanska
- Department of Medicine, Division of Pulmonary and Critical Care Medicine
| | - Benjamin D. Singer
- Department of Medicine, Division of Pulmonary and Critical Care Medicine
- Department of Biochemistry and Molecular Genetics, and
- Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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30
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Bonser LR, Koh KD, Johansson K, Choksi SP, Cheng D, Liu L, Sun DI, Zlock LT, Eckalbar WL, Finkbeiner WE, Erle DJ. Flow-Cytometric Analysis and Purification of Airway Epithelial-Cell Subsets. Am J Respir Cell Mol Biol 2021; 64:308-317. [PMID: 33196316 PMCID: PMC7909335 DOI: 10.1165/rcmb.2020-0149ma] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 11/16/2020] [Indexed: 12/16/2022] Open
Abstract
The human airway epithelium is essential in homeostasis, and epithelial dysfunction contributes to chronic airway disease. Development of flow-cytometric methods to characterize subsets of airway epithelial cells will enable further dissection of airway epithelial biology. Leveraging single-cell RNA-sequencing data in combination with known cell type-specific markers, we developed panels of antibodies to characterize and isolate the major airway epithelial subsets (basal, ciliated, and secretory cells) from human bronchial epithelial-cell cultures. We also identified molecularly distinct subpopulations of secretory cells and demonstrated cell subset-specific expression of low-abundance transcripts and microRNAs that are challenging to analyze with current single-cell RNA-sequencing methods. These new tools will be valuable for analyzing and separating airway epithelial subsets and interrogating airway epithelial biology.
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Affiliation(s)
| | - Kyung Duk Koh
- Lung Biology Center
- Cardiovascular Research Institute
| | - Kristina Johansson
- Department of Microbiology and Immunology
- Division of Pulmonary, Critical Care, Sleep, and Allergy
- Sandler Asthma Basic Research Center
| | | | - Dan Cheng
- Lung Biology Center
- Cardiovascular Research Institute
- Department of Respiratory and Critical Care Medicine, Renmin Hospital, Wuhan University, Wuhan, China
| | - Leqian Liu
- Department of Bioengineering and Therapeutic Sciences
| | | | | | - Walter L. Eckalbar
- Lung Biology Center
- University of California, San Francisco CoLabs, University of California San Francisco, San Francisco, California; and
| | | | - David J. Erle
- Lung Biology Center
- Cardiovascular Research Institute
- University of California, San Francisco CoLabs, University of California San Francisco, San Francisco, California; and
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31
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Helmin KA, Morales-Nebreda L, Torres Acosta MA, Anekalla KR, Chen SY, Abdala-Valencia H, Politanska Y, Cheresh P, Akbarpour M, Steinert EM, Weinberg SE, Singer BD. Maintenance DNA methylation is essential for regulatory T cell development and stability of suppressive function. J Clin Invest 2021; 130:6571-6587. [PMID: 32897881 DOI: 10.1172/jci137712] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 09/02/2020] [Indexed: 12/22/2022] Open
Abstract
Tregs require Foxp3 expression and induction of a specific DNA hypomethylation signature during development, after which Tregs persist as a self-renewing population that regulates immune system activation. Whether maintenance DNA methylation is required for Treg lineage development and stability and how methylation patterns are maintained during lineage self-renewal remain unclear. Here, we demonstrate that the epigenetic regulator ubiquitin-like with plant homeodomain and RING finger domains 1 (Uhrf1) is essential for maintenance of methyl-DNA marks that stabilize Treg cellular identity by repressing effector T cell transcriptional programs. Constitutive and induced deficiency of Uhrf1 within Foxp3+ cells resulted in global yet nonuniform loss of DNA methylation, derepression of inflammatory transcriptional programs, destabilization of the Treg lineage, and spontaneous inflammation. These findings support a paradigm in which maintenance DNA methylation is required in distinct regions of the Treg genome for both lineage establishment and stability of identity and suppressive function.
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Affiliation(s)
- Kathryn A Helmin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | | | | | - Kishore R Anekalla
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Shang-Yang Chen
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | | | - Yuliya Politanska
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Paul Cheresh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | | | | | - Samuel E Weinberg
- Division of Pulmonary and Critical Care Medicine, Department of Medicine.,Department of Pathology
| | - Benjamin D Singer
- Division of Pulmonary and Critical Care Medicine, Department of Medicine.,Department of Biochemistry and Molecular Genetics.,Simpson Querrey Institute for Epigenetics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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32
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Ren J, Liu Y, Yao Y, Feng L, Zhao X, Li Z, Yang L. Intranasal delivery of MSC-derived exosomes attenuates allergic asthma via expanding IL-10 producing lung interstitial macrophages in mice. Int Immunopharmacol 2021; 91:107288. [PMID: 33360827 DOI: 10.1016/j.intimp.2020.107288] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/23/2020] [Accepted: 12/07/2020] [Indexed: 12/31/2022]
Abstract
Mesenchymal stem cells (MSCs) have been investigated in preventing and treating allergic asthma in many reports. Recently, MSC-derived exosomes (MSC-Exo) were showed a promising alternative to stem cell-based therapy in many kinds of diseases. However, the effect of MSC-Exo on allergic asthma has not been investigated thoroughly thus far. Here, we aimed to investigate the immunomodulation effect of MSC-Exo in a murine model of asthma and explore the underlying mechanisms. BALB/c mice were sensitized and challenged by OVA to establish asthma model. MSC-Exo were intranasally delivered before or during challenge and the protective effect were assessed after the last OVA challenge. Allergic airway inflammation elicited by OVA were significantly attenuated by intranasal delivery of MSC-Exo. To explore the protective mechanism of MSC-Exo, lung interstitial macrophages (IMs) and alveolar macrophages (AMs) were analyzed by flow cytometry and the origin of IMs were traced. Lung IMs ratios were significantly enhanced and high level of IL-10 was produced after MSC-Exo intranasal delivery. IMs ratios were not obviously affected by CCR2 inhibitor or Clodronate liposome administration, whereas significantly decreased in splenectomized mice. Cx3cr1+ cell specific IL-10 conditionally deficient mice were used to further examine the role of IL-10 producing IMs in allergic asthma. IMs-mediated protection was dependent on IL-10, given that the protection disappeared in Cx3cr1-IL-10-/-mice. In conclusion, intranasal delivery of MSC-Exo could substantially expand lung IL-10-producing IMs, which may originate from spleen, thus contribute to protection against allergic asthma in mice.
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Affiliation(s)
- Jiling Ren
- Department of Pathogen Biology, Basic Medical College, Tianjin Medical University, Tianjin, China
| | - Yongzhe Liu
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Ye Yao
- Department of Pathogen Biology, Basic Medical College, Tianjin Medical University, Tianjin, China
| | - Lifeng Feng
- School of Medicine, Nankai University, Tianjin, China
| | - Xiaotong Zhao
- School of Medicine, Nankai University, Tianjin, China
| | - Zongjin Li
- School of Medicine, Nankai University, Tianjin, China.
| | - Liang Yang
- School of Medicine, Nankai University, Tianjin, China.
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33
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McCall JR, Sausman KT. Systematic approach in macrophage polarization experiments: Maintaining integrity and reproducibility using flow cytometry and sample preparation. J Immunol Methods 2021; 492:112969. [PMID: 33482175 DOI: 10.1016/j.jim.2021.112969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
Resolution of inflammation is an important physiological process following infection or injury. When inflammation fails to resolve, it can cause chronic inflammation, which exacerbates a myriad of diseases. Current anti-inflammatory treatment options are often inadequate to resolve inflammation, and as such, a key goal for drug discovery is to find natural products and novel compounds that can target immune resolution processes. In order to efficiently discovery new therapies, immune cell lines are often used, in conjunction with flow cytometry, to quickly and inexpensively screen potential drugs for immunomodulatory effects. However, seemingly minor or trivial differences in methodology can lead to inconsistent results across experiments and across laboratories. It was the goal of this project to examine the effects of those differences on the RAW 264.7 macrophage cell line, particularly as it relates to macrophage polarization experimentation. We found that the type of detachment method when preparing cells for flow cytometry can alter several key macrophage parameters, including markers for macrophage polarization, depending on the gating strategy used in identifying sub-populations of cells for analysis. Investigators need to incorporate best-practices in gating strategy in order to target viable cells that are not in aggregate to ensure consistent and reliable results for immunomodulatory drug discovery.
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Affiliation(s)
- Jennifer R McCall
- School of Nursing, College of Health and Human Services, University of North Carolina Wilmington, 601 S. College Road, Wilmington, NC, USA.
| | - Kathryn T Sausman
- School of Nursing, College of Health and Human Services, University of North Carolina Wilmington, 601 S. College Road, Wilmington, NC, USA
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34
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Bordag N, Biasin V, Schnoegl D, Valzano F, Jandl K, Nagy BM, Sharma N, Wygrecka M, Kwapiszewska G, Marsh LM. Machine Learning Analysis of the Bleomycin Mouse Model Reveals the Compartmental and Temporal Inflammatory Pulmonary Fingerprint. iScience 2020; 23:101819. [PMID: 33319168 PMCID: PMC7725744 DOI: 10.1016/j.isci.2020.101819] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/28/2020] [Accepted: 11/13/2020] [Indexed: 02/06/2023] Open
Abstract
The bleomycin mouse model is the extensively used model to study pulmonary fibrosis; however, the inflammatory cell kinetics and their compartmentalization is still incompletely understood. Here we assembled historical flow cytometry data, totaling 303 samples and 16 inflammatory-cell populations, and applied advanced data modeling and machine learning methods to conclusively detail these kinetics. Three days post-bleomycin, the inflammatory profile was typified by acute innate inflammation, pronounced neutrophilia, especially of SiglecF+ neutrophils, and alveolar macrophage loss. Between 14 and 21 days, rapid responders were increasingly replaced by T and B cells and monocyte-derived alveolar macrophages. Multicolour imaging revealed the spatial-temporal cell distribution and the close association of T cells with deposited collagen. Unbiased immunophenotyping and data modeling exposed the dynamic shifts in immune-cell composition over the course of bleomycin-triggered lung injury. These results and workflow provide a reference point for future investigations and can easily be applied in the analysis of other datasets.
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Affiliation(s)
- Natalie Bordag
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
| | - Valentina Biasin
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz 8010, Austria
| | - Diana Schnoegl
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
| | - Francesco Valzano
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
| | - Katharina Jandl
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
- Otto Loewi Research Center, Medical University of Graz, Graz 8010 Austria
| | - Bence M. Nagy
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
| | - Neha Sharma
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz 8010, Austria
| | - Malgorzata Wygrecka
- Department of Biochemistry, Universities of Giessen and Marburg Lung Center, Giessen 35392, Germany. Member of German Center for Lung Research
| | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
- Otto Loewi Research Center, Medical University of Graz, Graz 8010 Austria
| | - Leigh M. Marsh
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
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35
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Shanthikumar S, Burton M, Saffery R, Ranganathan SC, Neeland MR. Single-Cell Flow Cytometry Profiling of BAL in Children. Am J Respir Cell Mol Biol 2020; 63:152-159. [PMID: 32207982 DOI: 10.1165/rcmb.2019-0453ma] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Childhood pulmonary diseases not only cause childhood morbidity and mortality but also can cause long-term pulmonary impairment. The clinical management of many childhood pulmonary diseases is hampered by a limited understanding of the underlying pathophysiological mechanisms. Flow cytometry, which can be used to phenotype individual cell populations or isolate cells for downstream analysis, represents a crucial technology that can help to elucidate the pathophysiology of these conditions. Here, we describe a flow cytometry-based method for purification and characterization of cell populations in BAL from children. This includes assessment of the effect of cryopreservation on cell phenotype and frequency, a knowledge gap recently identified by an American Thoracic Society report on flow cytometry in lung samples. To our knowledge, this is the first study to simultaneously quantify alveolar macrophages, T cells (CD4 and CD8), B cells, natural killer cells, dendritic cells, granulocytes, and monocytes (CD16+/CD16-) in the BAL of children. The protocols described can be used to advance investigation of the pathophysiology of childhood pulmonary diseases.
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Affiliation(s)
- Shivanthan Shanthikumar
- Respiratory and Sleep Medicine, Royal Children's Hospital, Melbourne, Victoria, Australia.,Respiratory Diseases.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | | | - Richard Saffery
- Epigenetics, and.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Sarath C Ranganathan
- Respiratory and Sleep Medicine, Royal Children's Hospital, Melbourne, Victoria, Australia.,Respiratory Diseases.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Melanie R Neeland
- Population Allergy, Murdoch Children's Research Institute, Melbourne, Victoria, Australia; and.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
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36
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Tighe RM, Yu YR. Know Where You Are: Pulmonary Macrophage Locations in the Human Lung. Am J Respir Crit Care Med 2020; 201:1169-1170. [PMID: 32228390 PMCID: PMC7233343 DOI: 10.1164/rccm.202002-0235ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Robert M Tighe
- Department of MedicineDuke UniversityDurham, North Carolina
| | - Yen Rei Yu
- Department of MedicineDuke UniversityDurham, North Carolina
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37
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Fu M, Mani M, Bradford J, Chen W, Chen M, Fuda F. Application of flow cytometry in the analysis of lymphoid disease in the lung and pleural space. Semin Diagn Pathol 2020; 37:303-320. [PMID: 32768250 DOI: 10.1053/j.semdp.2020.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/23/2020] [Accepted: 06/23/2020] [Indexed: 11/11/2022]
Abstract
Various types of lymphoid neoplasms can occur in the lung. Lung parenchyma, the pleura or the pleural cavity can be the primary site of a lymphoid neoplasm or can be involved secondarily as a result of systemic dissemination from a separate primary site. Recognition of pulmonary lymphoid neoplasms (PLN) has increased secondary to technological advances in the medical field. Multiparameter flow cytometry (FC) is a one of the diagnostic tools that serves an essential role in the detecting and categorizing PLNs. FC allows for rapid identification and immunophenotypic characterization of PLN. In this article, we discuss the role of FC in the diagnosis of the most commonly encountered PLNs as well as their basic clinicopathologic features. We briefly discuss the role of FC in identifying non-hematolymphoid neoplasms in lung specimens as well.
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Affiliation(s)
- May Fu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX
| | - Malary Mani
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX
| | - Jaclyn Bradford
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX
| | - Weina Chen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX
| | - Mingyi Chen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX
| | - Franklin Fuda
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX.
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38
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Podolsky MJ, Yang CD, Valenzuela CL, Datta R, Huang SK, Nishimura SL, Dallas SL, Wolters PJ, Le Saux CJ, Atabai K. Age-dependent regulation of cell-mediated collagen turnover. JCI Insight 2020; 5:137519. [PMID: 32315288 DOI: 10.1172/jci.insight.137519] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/15/2020] [Indexed: 12/22/2022] Open
Abstract
Although aging represents the most important epidemiologic risk factor for fibrotic disease, the reasons for this are incompletely understood. Excess collagen deposition in tissues is the sine qua non of tissue fibrosis and can be viewed as an imbalance between collagen production and collagen degradation. Yet we still lack a detailed understanding of the changes that take place during development, maturation, and aging in extracellular matrix (ECM) dynamics. Resolution of fibrosis is impaired in aging, and this impairment may explain why age is the most important risk factor for fibrotic diseases, such as idiopathic pulmonary fibrosis. However, ECM dynamics and impaired resolution of fibrosis in aging remain understudied. Here we show that cell-mediated collagen uptake and degradation are diminished in aged animals and this finding correlates with downregulation of the collagen endocytic receptor mannose receptor, C-type 2 (Mrc2). We identify myeloid zinc finger-1 as a potentially novel transcriptional regulator of Mrc2, and both this transcription factor and Mrc2 are downregulated in multiple tissues and organisms in an age-dependent manner. Thus, cell-mediated degradation of collagen is an essential process that promotes resolution of fibrosis, and impairment in this process contributes to age-related fibrosis.
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Affiliation(s)
- Michael J Podolsky
- Cardiovascular Research Institute.,Lung Biology Center, and.,Department of Medicine, UCSF, San Francisco, California, USA
| | | | | | | | - Steven K Huang
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | | | - Sarah L Dallas
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - Paul J Wolters
- Department of Medicine, UCSF, San Francisco, California, USA
| | | | - Kamran Atabai
- Cardiovascular Research Institute.,Lung Biology Center, and.,Department of Medicine, UCSF, San Francisco, California, USA
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39
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Hume PS, Gibbings SL, Jakubzick CV, Tuder RM, Curran-Everett D, Henson PM, Smith BJ, Janssen WJ. Localization of Macrophages in the Human Lung via Design-based Stereology. Am J Respir Crit Care Med 2020; 201:1209-1217. [PMID: 32197050 PMCID: PMC7233346 DOI: 10.1164/rccm.201911-2105oc] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Rationale: Interstitial macrophages (IMs) and airspace macrophages (AMs) play critical roles in lung homeostasis and host defense, and are central to the pathogenesis of a number of lung diseases. However, the absolute numbers of macrophages and the precise anatomic locations they occupy in the healthy human lung have not been quantified.Objectives: To determine the precise number and anatomic location of human pulmonary macrophages in nondiseased lungs and to quantify how this is altered in chronic cigarette smokers.Methods: Whole right upper lobes from 12 human donors without pulmonary disease (6 smokers and 6 nonsmokers) were evaluated using design-based stereology. CD206 (cluster of differentiation 206)-positive/CD43+ AMs and CD206+/CD43- IMs were counted in five distinct anatomical locations using the optical disector probe.Measurements and Main Results: An average of 2.1 × 109 IMs and 1.4 × 109 AMs were estimated per right upper lobe. Of the AMs, 95% were contained in diffusing airspaces and 5% in airways. Of the IMs, 78% were located within the alveolar septa, 14% around small vessels, and 7% around the airways. The local density of IMs was greater in the alveolar septa than in the connective tissue surrounding the airways or vessels. The total number and density of IMs was 36% to 56% greater in the lungs of cigarette smokers versus nonsmokers.Conclusions: The precise locations occupied by pulmonary macrophages were defined in nondiseased human lungs from smokers and nonsmokers. IM density was greatest in the alveolar septa. Lungs from chronic smokers had increased IM numbers and overall density, supporting a role for IMs in smoking-related disease.
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Affiliation(s)
- Patrick S. Hume
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and,Division of Pulmonary Sciences and Critical Care Medicine
| | - Sophie L. Gibbings
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and
| | - Claudia V. Jakubzick
- Department of Microbiology and Immunology, Dartmouth College, Hanover, New Hampshire
| | - Rubin M. Tuder
- Division of Pulmonary Sciences and Critical Care Medicine
| | - Douglas Curran-Everett
- Division of Biostatistics and Bioinformatics, National Jewish Health, Denver, Colorado,Department of Biostatistics and Informatics, Colorado School of Public Health, and
| | - Peter M. Henson
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and,Division of Pulmonary Sciences and Critical Care Medicine
| | - Bradford J. Smith
- Department of Biomedical Engineering, University of Colorado, Anschutz Medical Campus, Aurora, Colorado; and
| | - William J. Janssen
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and,Division of Pulmonary Sciences and Critical Care Medicine
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