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Zuttion MSSR, Parimon T, Yao C, Stripp BR, Wang Y, Soto CM, Ortega Z, Li X, Janssen WJ, Chen P. Interstitial Macrophages Mediate Efferocytosis of Alveolar Epithelium during Influenza Infection. Am J Respir Cell Mol Biol 2024; 70:159-164. [PMID: 38207122 PMCID: PMC10914771 DOI: 10.1165/rcmb.2023-0217ma] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 01/10/2024] [Indexed: 01/13/2024] Open
Abstract
Efferocytosis is a process whereby apoptotic cells are cleared to maintain tissue homeostasis. In the lungs, efferocytosis has been implicated in several acute and chronic inflammatory diseases. A long-standing method to study efferocytosis in vivo is to instill apoptotic cells into the lungs to evaluate macrophage uptake. However, this approach provides nonphysiologic levels of cells to the airspaces, where there is preferential access to the alveolar macrophages. To circumvent this limitation, we developed a new method to study efferocytosis of damaged alveolar type 2 (AT2) epithelial cells in vivo. A reporter mouse that expresses TdTomato in AT2 epithelial cells was injured with influenza (strain PR8) to induce apoptosis of AT2 cells. We were able to identify macrophages that acquire red fluorescence after influenza injury, indicating efferocytosis of AT2 cells. Furthermore, evaluation of macrophage populations led to the surprising finding that lung interstitial macrophages were the primary efferocyte in vivo. In summary, we present a novel finding that the interstitial macrophage, not the alveolar macrophage, primarily mediates clearance of AT2 cells in the lungs after influenza infection. Our method of studying efferocytosis provides a more physiologic approach in evaluating the spatiotemporal dynamics of apoptotic cell clearance in vivo and opens new avenues to study the mechanisms by which efferocytosis regulates inflammation.
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Affiliation(s)
| | | | - Changfu Yao
- Women’s Guild Lung Institute, Department of Medicine, and
| | - Barry R. Stripp
- Women’s Guild Lung Institute, Department of Medicine, and
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California; and
| | - Ying Wang
- Women’s Guild Lung Institute, Department of Medicine, and
| | | | - Zackary Ortega
- Women’s Guild Lung Institute, Department of Medicine, and
| | - Xiao Li
- Women’s Guild Lung Institute, Department of Medicine, and
| | - William J. Janssen
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
| | - Peter Chen
- Women’s Guild Lung Institute, Department of Medicine, and
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California; and
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2
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Gurule NJ, Malcolm KC, Harris C, Knapp JR, O'Connor BP, McClendon J, Janssen WJ, Lee FFY, Price C, Osaghae-Nosa J, Wheeler EA, McMahon CM, Pietras EM, Pollyea DA, Alper S. Myelodysplastic neoplasm-associated U2AF1 mutations induce host defense defects by compromising neutrophil chemotaxis. Leukemia 2023; 37:2115-2124. [PMID: 37591942 PMCID: PMC10539173 DOI: 10.1038/s41375-023-02007-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/24/2023] [Accepted: 08/08/2023] [Indexed: 08/19/2023]
Abstract
Myelodysplastic neoplasm (MDS) is a hematopoietic stem cell disorder that may evolve into acute myeloid leukemia. Fatal infection is among the most common cause of death in MDS patients, likely due to myeloid cell cytopenia and dysfunction in these patients. Mutations in genes that encode components of the spliceosome represent the most common class of somatically acquired mutations in MDS patients. To determine the molecular underpinnings of the host defense defects in MDS patients, we investigated the MDS-associated spliceosome mutation U2AF1-S34F using a transgenic mouse model that expresses this mutant gene. We found that U2AF1-S34F causes a profound host defense defect in these mice, likely by inducing a significant neutrophil chemotaxis defect. Studies in human neutrophils suggest that this effect of U2AF1-S34F likely extends to MDS patients as well. RNA-seq analysis suggests that the expression of multiple genes that mediate cell migration are affected by this spliceosome mutation and therefore are likely drivers of this neutrophil dysfunction.
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Affiliation(s)
- Natalia J Gurule
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, USA
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, USA
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz, CO, USA
| | | | - Chelsea Harris
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, USA
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, USA
| | - Jennifer R Knapp
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, USA
| | - Brian P O'Connor
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, USA
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, USA
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz, CO, USA
| | | | - William J Janssen
- Department of Medicine, National Jewish Health, Denver, CO, USA
- Department of Medicine, University of Colorado, Aurora, CO, USA
| | - Frank Fang Yao Lee
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, USA
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, USA
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz, CO, USA
| | - Caitlin Price
- Department of Medicine, University of Colorado, Aurora, CO, USA
| | - Jackson Osaghae-Nosa
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, USA
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, USA
| | - Emily A Wheeler
- Department of Medicine, National Jewish Health, Denver, CO, USA
| | | | - Eric M Pietras
- Department of Medicine, University of Colorado, Aurora, CO, USA
| | | | - Scott Alper
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO, USA.
- Center for Genes, Environment and Health, National Jewish Health, Denver, CO, USA.
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Anschutz, CO, USA.
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3
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Castleman MJ, Santos AL, Lesteberg KE, Maloney JP, Janssen WJ, Mould KJ, Beckham JD, Pelanda R, Torres RM. Activation and pro-inflammatory cytokine production by unswitched memory B cells during SARS-CoV-2 infection. Front Immunol 2023; 14:1213344. [PMID: 37638016 PMCID: PMC10449608 DOI: 10.3389/fimmu.2023.1213344] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/03/2023] [Indexed: 08/29/2023] Open
Abstract
Memory B cells are comprised of unswitched (CD27+IgD+) and switched (CD27+IgD-) subsets. The origin and function of unswitched human memory B cells are debated in the literature, whereas switched memory B cells are primed to respond to recurrent infection. Unswitched memory B cells have been described to be reduced in frequency with severe SARS-CoV2 infection and here we characterize their activation status, BCR functionality, and contribution to virally-induced cytokine production. Analyses of whole blood from healthy individuals, people immunized against SARS-CoV2, and those who have had mild and severe SARS-CoV2 infection, confirm a reduction in the frequency of unswitched memory B cells during severe SARS-CoV2 infection and demonstrate this reduction is associated with increased levels of systemic TNFα. We further document how severe viral infection is associated with an increased frequency of 'IgD+' only memory B cells that correlate with increased IgG autoantibody levels. Unswitched and switched memory B cells from severe SARS-CoV2 infection displayed evidence of heightened activation with a concomitant reduction in the expression of the inhibitory receptor CD72. Functionally, both populations of memory B cells from severe SARS-COV2 infection harbored a signaling-competent BCR that displayed enhanced BCR signaling activity in the unswitched population. Finally, we demonstrate that B cells from mild SARS-CoV2 infection are poised to secrete pro-inflammatory cytokines IL-6 and TNFα. Importantly, unswitched memory B cells were a major producer of IL-6 and switched memory B cells were a major producer of TNFα in response to viral TLR ligands. Together these data indicate that B cells contribute to the inflammatory milieu during viral infection.
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Affiliation(s)
- Moriah J. Castleman
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Adriana Luna Santos
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Kelsey E. Lesteberg
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Medicine, Division of Infectious Disease, University of Colorado School of Medicine, Aurora, CO, United States
| | - James P. Maloney
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, United States
| | - William J. Janssen
- Department of Medicine, National Jewish Health, Denver, CO, United States
- Department of Medicine, University of Colorado, Aurora, CO, United States
| | - Kara J. Mould
- Department of Medicine, National Jewish Health, Denver, CO, United States
- Department of Medicine, University of Colorado, Aurora, CO, United States
| | - J. David Beckham
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Medicine, Division of Infectious Disease, University of Colorado School of Medicine, Aurora, CO, United States
- Rocky Mountain Regional VA, Medical Center, Aurora, CO, United States
| | - Roberta Pelanda
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Raul M. Torres
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
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4
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Grey EL, McClendon J, Suresh J, Alper S, Janssen WJ, Bryant SJ. Thiol-Michael Addition Microparticles: Their Synthesis, Characterization, and Uptake by Macrophages. ACS Biomater Sci Eng 2023; 9:4223-4240. [PMID: 37379254 PMCID: PMC10619202 DOI: 10.1021/acsbiomaterials.3c00441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Polymeric microparticles are promising biomaterial platforms for targeting macrophages in the treatment of disease. This study investigates microparticles formed by a thiol-Michael addition step-growth polymerization reaction with tunable physiochemical properties and their uptake by macrophages. The hexafunctional thiol monomer dipentaerythritol hexa-3-mercaptopropionate (DPHMP) and tetrafunctional acrylate monomer di(trimethylolpropane) tetraacrylate (DTPTA) were reacted in a stepwise dispersion polymerization, achieving tunable monodisperse particles over a size range (1-10 μm) relevant for targeting macrophages. An off-stoichiometry thiol-acrylate reaction afforded facile secondary chemical functionalization to create particles with different chemical moieties. Uptake of the microparticles by RAW 264.7 macrophages was highly dependent on treatment time, particle size, and particle chemistry with amide, carboxyl, and thiol terminal chemistries. The amide-terminated particles were non-inflammatory, while the carboxyl- and thiol-terminated particles induced pro-inflammatory cytokine production in conjunction with particle phagocytosis. Finally, a lung-specific application was explored through time-dependent uptake of amide-terminated particles by human alveolar macrophages in vitro and mouse lungs in vivo without inducing inflammation. The findings demonstrate a promising microparticulate delivery vehicle that is cyto-compatible, is non-inflammatory, and exhibits high rates of uptake by macrophages.
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Affiliation(s)
- Emerson L. Grey
- Department of Chemical and Biological Engineering, University of Colorado, 3415 Colorado Ave, Boulder, CO 80309-0596, USA
| | - Jazalle McClendon
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - Joshita Suresh
- Department of Chemical and Biological Engineering, University of Colorado, 3415 Colorado Ave, Boulder, CO 80309-0596, USA
| | - Scott Alper
- Department of Immunology and Genomic Medicine, Center for Genes, Environment and Health, National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - William J. Janssen
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, 12631 East 17th Avenue, Aurora, CO 80045, USA
| | - Stephanie J. Bryant
- Department of Chemical and Biological Engineering, University of Colorado, 3415 Colorado Ave, Boulder, CO 80309-0596, USA
- Materials Science & Engineering Program, University of Colorado, 4001 Discovery Dr, Boulder, CO 80309-0613, USA
- BioFrontiers Institute, University of Colorado, 3415 Colorado Ave, Boulder, CO 80309-0596, USA
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5
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Ochoa AE, Congel JH, Corley JM, Janssen WJ, Nick JA, Malcolm KC, Hisert KB. Dectin-1-Independent Macrophage Phagocytosis of Mycobacterium abscessus. Int J Mol Sci 2023; 24:11062. [PMID: 37446240 PMCID: PMC10341562 DOI: 10.3390/ijms241311062] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/25/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
Mycobacterium abscessus, a species of nontuberculous mycobacteria (NTM), is an opportunistic pathogen that is readily cleared by healthy lungs but can cause pulmonary infections in people with chronic airway diseases. Although knowledge pertaining to molecular mechanisms of host defense against NTM is increasing, macrophage receptors that recognize M. abscessus remain poorly defined. Dectin-1, a C-type lectin receptor identified as a fungal receptor, has been shown to be a pathogen recognition receptor (PRR) for both M. tuberculosis and NTM. To better understand the role of Dectin-1 in host defense against M. abscessus, we tested whether blocking Dectin-1 impaired the uptake of M. abscessus by human macrophages, and we compared M. abscessus pulmonary infection in Dectin-1-deficient and wild-type mice. Blocking antibody for Dectin-1 did not reduce macrophage phagocytosis of M. abscessus, but did reduce the ingestion of the fungal antigen zymosan. Laminarin, a glucan that blocks Dectin-1 and other PRRs, caused decreased phagocytosis of both M. abscessus and zymosan. Dectin-1-/- mice exhibited no defects in the control of M. abscessus infection, and no differences were detected in immune cell populations between wild type and Dectin-1-/- mice. These data demonstrate that murine defense against M. abscessus pulmonary infection, as well as ingestion of M. abscessus by human macrophages, can occur independent of Dectin-1. Thus, additional PRR(s) recognized by laminarin participate in macrophage phagocytosis of M. abscessus.
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Affiliation(s)
| | | | | | | | | | | | - Katherine B. Hisert
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Room A550, Denver, CO 80206, USA
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6
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Palmer WH, Leaton LA, Codo AC, Crute B, Roest J, Zhu S, Petersen J, Tobin RP, Hume PS, Stone M, van Bokhoven A, Gerich ME, McCarter MD, Zhu Y, Janssen WJ, Vivian JP, Trowsdale J, Getahun A, Rossjohn J, Cambier J, Loh L, Norman PJ. Polymorphic KIR3DL3 expression modulates tissue-resident and innate-like T cells. Sci Immunol 2023; 8:eade5343. [PMID: 37390222 PMCID: PMC10360443 DOI: 10.1126/sciimmunol.ade5343] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 06/07/2023] [Indexed: 07/02/2023]
Abstract
Most human killer cell immunoglobulin-like receptors (KIR) are expressed by natural killer (NK) cells and recognize HLA class I molecules as ligands. KIR3DL3 is a conserved but polymorphic inhibitory KIR recognizing a B7 family ligand, HHLA2, and is implicated for immune checkpoint targeting. The expression profile and biological function of KIR3DL3 have been somewhat elusive, so we searched extensively for KIR3DL3 transcripts, revealing highly enriched expression in γδ and CD8+ T cells rather than NK cells. These KIR3DL3-expressing cells are rare in the blood and thymus but more common in the lungs and digestive tract. High-resolution flow cytometry and single-cell transcriptomics showed that peripheral blood KIR3DL3+ T cells have an activated transitional memory phenotype and are hypofunctional. The T cell receptor (TCR) usage is biased toward genes from early rearranged TCR-α variable segments or Vδ1 chains. In addition, we show that TCR-mediated stimulation can be inhibited through KIR3DL3 ligation. Whereas we detected no impact of KIR3DL3 polymorphism on ligand binding, variants in the proximal promoter and at residue 86 can reduce expression. Together, we demonstrate that KIR3DL3 is up-regulated alongside unconventional T cell stimulation and that individuals may vary in their ability to express KIR3DL3. These results have implications for the personalized targeting of KIR3DL3/HHLA2 checkpoint inhibition.
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Affiliation(s)
- William H. Palmer
- Department of Biomedical Informatics, University of
Colorado School of Medicine, Aurora, CO, USA
- Department of Immunology & Microbiology, University of
Colorado School of Medicine, Aurora, CO, USA
| | - Laura Ann Leaton
- Department of Biomedical Informatics, University of
Colorado School of Medicine, Aurora, CO, USA
- Department of Immunology & Microbiology, University of
Colorado School of Medicine, Aurora, CO, USA
| | - Ana Campos Codo
- Department of Biomedical Informatics, University of
Colorado School of Medicine, Aurora, CO, USA
- Department of Immunology & Microbiology, University of
Colorado School of Medicine, Aurora, CO, USA
| | - Bergren Crute
- Department of Immunology & Microbiology, University of
Colorado School of Medicine, Aurora, CO, USA
| | - James Roest
- Infection and Immunity Program and Department of
Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash
University, Clayton, Victoria, Australia
| | - Shiying Zhu
- Infection and Immunity Program and Department of
Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash
University, Clayton, Victoria, Australia
| | - Jan Petersen
- Infection and Immunity Program and Department of
Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash
University, Clayton, Victoria, Australia
| | - Richard P. Tobin
- Department of Surgery, Division of Surgical Oncology,
University of Colorado School of Medicine, Aurora, CO, USA
| | - Patrick S. Hume
- Department of Medicine, National Jewish Health, Denver, CO,
USA
| | - Matthew Stone
- Department of Surgery, Division of Surgical Oncology,
University of Colorado School of Medicine, Aurora, CO, USA
| | - Adrie van Bokhoven
- Department of Pathology, University of Colorado School of
Medicine, Aurora, CO, USA
| | - Mark E. Gerich
- Division of Gastroenterology and Hepatology, University of
Colorado School of Medicine, Aurora, CO, USA
| | - Martin D. McCarter
- Department of Surgery, Division of Surgical Oncology,
University of Colorado School of Medicine, Aurora, CO, USA
| | - Yuwen Zhu
- Department of Surgery, Division of Surgical Oncology,
University of Colorado School of Medicine, Aurora, CO, USA
| | | | - Julian P. Vivian
- Infection and Immunity Program and Department of
Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash
University, Clayton, Victoria, Australia
| | | | - Andrew Getahun
- Department of Immunology & Microbiology, University of
Colorado School of Medicine, Aurora, CO, USA
| | - Jamie Rossjohn
- Infection and Immunity Program and Department of
Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash
University, Clayton, Victoria, Australia
- Institute of Infection and Immunity, Cardiff University,
School of Medicine, Heath Park, Cardiff, UK
| | - John Cambier
- Department of Immunology & Microbiology, University of
Colorado School of Medicine, Aurora, CO, USA
| | - Liyen Loh
- Department of Immunology & Microbiology, University of
Colorado School of Medicine, Aurora, CO, USA
- Department of Microbiology and Immunology, University of
Melbourne, at the Peter Doherty Institute for Infection and Immunity, Parkville,
Australia
| | - Paul J. Norman
- Department of Biomedical Informatics, University of
Colorado School of Medicine, Aurora, CO, USA
- Department of Immunology & Microbiology, University of
Colorado School of Medicine, Aurora, CO, USA
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7
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Petrache I, Pujadas E, Ganju A, Serban KA, Borowiec A, Babbs B, Bronova IA, Egersdorf N, Hume PS, Goel K, Janssen WJ, Berdyshev EV, Cordon-Cardo C, Kolesnick R. Marked elevations in lung and plasma ceramide in COVID-19 linked to microvascular injury. JCI Insight 2023; 8:e156104. [PMID: 37212278 PMCID: PMC10322682 DOI: 10.1172/jci.insight.156104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 04/05/2023] [Indexed: 05/23/2023] Open
Abstract
The pathogenesis of the marked pulmonary microvasculature injury, a distinguishing feature of COVID-19 acute respiratory distress syndrome (COVID-ARDS), remains unclear. Implicated in the pathophysiology of diverse diseases characterized by endothelial damage, including ARDS and ischemic cardiovascular disease, ceramide and in particular palmitoyl ceramide (C16:0-ceramide) may be involved in the microvascular injury in COVID-19. Using deidentified plasma and lung samples from COVID-19 patients, ceramide profiling by mass spectrometry was performed. Compared with healthy individuals, a specific 3-fold C16:0-ceramide elevation in COVID-19 patient plasma was identified. Compared with age-matched controls, autopsied lungs of individuals succumbing to COVID-ARDS displayed a massive 9-fold C16:0-ceramide elevation and exhibited a previously unrecognized microvascular ceramide-staining pattern and markedly enhanced apoptosis. In COVID-19 plasma and lungs, the C16-ceramide/C24-ceramide ratios were increased and reversed, respectively, consistent with increased risk of vascular injury. Indeed, exposure of primary human lung microvascular endothelial cell monolayers to C16:0-ceramide-rich plasma lipid extracts from COVID-19, but not healthy, individuals led to a significant decrease in endothelial barrier function. This effect was phenocopied by spiking healthy plasma lipid extracts with synthetic C16:0-ceramide and was inhibited by treatment with ceramide-neutralizing monoclonal antibody or single-chain variable fragment. These results indicate that C16:0-ceramide may be implicated in the vascular injury associated with COVID-19.
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Affiliation(s)
- Irina Petrache
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Aurora, Colorado, USA
| | - Elisabet Pujadas
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Aditya Ganju
- Laboratory of Signal Transduction, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Karina A. Serban
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Aurora, Colorado, USA
| | - Alexander Borowiec
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
| | - Beatrice Babbs
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
| | - Irina A. Bronova
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
| | - Nicholas Egersdorf
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
| | - Patrick S. Hume
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Aurora, Colorado, USA
| | - Khushboo Goel
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Aurora, Colorado, USA
| | - William J. Janssen
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Aurora, Colorado, USA
| | - Evgeny V. Berdyshev
- Department of Medicine, Division of Pulmonary and Critical Care, National Jewish Health, Denver, Colorado, USA
| | - Carlos Cordon-Cardo
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Richard Kolesnick
- Laboratory of Signal Transduction, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York, USA
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8
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Moore PK, Anderson KC, McManus SA, Tu TH, King EM, Mould KJ, Redente EF, Henson PM, Janssen WJ, McCubbrey AL. Single-cell RNA sequencing reveals unique monocyte-derived interstitial macrophage subsets during lipopolysaccharide-induced acute lung inflammation. Am J Physiol Lung Cell Mol Physiol 2023; 324:L536-L549. [PMID: 36852927 PMCID: PMC10069979 DOI: 10.1152/ajplung.00223.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 02/22/2023] [Accepted: 02/22/2023] [Indexed: 03/01/2023] Open
Abstract
Interstitial macrophages (IMs) reside in the lung tissue surrounding key structures including airways, vessels, and alveoli. Recent work has described IM heterogeneity during homeostasis, however, there are limited data on IMs during inflammation. We sought to characterize IM origin, subsets, and transcriptomic profiles during homeostasis and lipopolysaccharide (LPS) induced acute lung inflammation. During homeostasis, we used three complementary methods, spectral flow cytometry, single-cell RNA-sequencing, and gene regulatory network enrichment, to demonstrate that IMs can be divided into two core subsets distinguished by surface and transcriptional expression of folate receptor β (Folr2/FRβ). These subsets inhabited distinct niches within the lung interstitium. Within FRβ+ IMs we identified a subpopulation marked by coexpression of LYVE1. During acute LPS-induced inflammation, lung IM numbers expand. Lineage tracing revealed IM expansion was due to recruitment of monocyte-derived IMs. At the peak of inflammation, recruited IMs were comprised two unique subsets defined by expression of genes associated with interferon signaling and glycolytic pathways. As recruited IMs matured, they adopted the overall transcriptional state of FRβ- resident IMs but retained expression in several origin-specific genes, such as IL-1β. FRβ+ IMs were of near-pure resident origin. Taken together our data show that during LPS-induced inflammation, there are distinct populations of IMs that likely have unique functions. FRΒ+ IMs comprise a stable, resident population, whereas FRβ- ΙΜs represent a mixed population of resident and recruited IMs.
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Affiliation(s)
- Peter K Moore
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
- Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Kelsey C Anderson
- Center for Genes, Environment, and Health, National Jewish Health, Denver, Colorado, United States
| | - Shannon A McManus
- Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Ting-Hui Tu
- Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Emily M King
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Kara J Mould
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
- Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Elizabeth F Redente
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
- Department of Pediatrics, National Jewish Health, Denver, Colorado, United States
| | - Peter M Henson
- Department of Pediatrics, National Jewish Health, Denver, Colorado, United States
- Department of Immunology and Microbiology, University of Colorado, Aurora, Colorado, United States
| | - William J Janssen
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
- Department of Medicine, National Jewish Health, Denver, Colorado, United States
| | - Alexandra L McCubbrey
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
- Department of Medicine, National Jewish Health, Denver, Colorado, United States
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9
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Hume PS, McClendon J, Kopf KW, Harral JW, Poczobutt JM, McCubbrey AL, Smith BJ, Henson PM, Majka SM, Petrache I, Janssen WJ. Cigarette smoke-induced airspace disease in mice develops independently of HIF-1α signaling in leukocytes. Am J Physiol Lung Cell Mol Physiol 2022; 323:L391-L399. [PMID: 35943156 PMCID: PMC9484987 DOI: 10.1152/ajplung.00491.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 07/21/2022] [Accepted: 08/01/2022] [Indexed: 11/22/2022] Open
Abstract
The pathogenesis of chronic obstructive pulmonary disease (COPD), a prevalent disease primarily caused by cigarette smoke exposure, is incompletely elucidated. Studies in humans and mice have suggested that hypoxia-inducible factor-1α (HIF-1α) may play a role. Reduced lung levels of HIF-1α are associated with decreased vascular density, whereas increased leukocyte HIF-1α may be responsible for increased inflammation. To elucidate the specific role of leukocyte HIF-1α in COPD, we exposed transgenic mice with conditional deletion or overexpression of HIF-1α in leukocytes to cigarette smoke for 7 mo. Outcomes included pulmonary physiology, aerated lung volumes via microcomputed tomography, lung morphometry and histology, and cardiopulmonary hemodynamics. On aggregate, cigarette smoke increased the aerated lung volume, quasi-static lung compliance, inspiratory capacity of all strains while reducing the total alveolar septal volume. Independent of smoke exposure, mice with leukocyte-specific HIF-1α overexpression had increased quasi-static compliance, inspiratory capacity, and alveolar septal volume compared with mice with leukocyte-specific HIF-1α deletion. However, the overall development of cigarette smoke-induced lung disease did not vary relative to control mice for either of the conditional strains. This suggests that the development of murine cigarette smoke-induced airspace disease occurs independently of leukocyte HIF-1α signaling.
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Affiliation(s)
- Patrick S Hume
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
- Department of Medicine, University of Colorado, Aurora, Colorado
| | - Jazalle McClendon
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
| | - Katrina W Kopf
- Biological Resource Center, National Jewish Health, Denver, Colorado
| | - Julie W Harral
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
- Department of Medicine, University of Colorado, Aurora, Colorado
| | - Joanna M Poczobutt
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
| | - Alexandra L McCubbrey
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
- Department of Medicine, University of Colorado, Aurora, Colorado
| | - Bradford J Smith
- Department of Bioengineering, University of Colorado, Aurora, Colorado
| | - Peter M Henson
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
- Department of Medicine, University of Colorado, Aurora, Colorado
| | - Susan M Majka
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
- Gates Center for Regenerative Medicine and Stem Cell Biology, University of Colorado, Aurora, Colorado
| | - Irina Petrache
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
- Department of Medicine, University of Colorado, Aurora, Colorado
| | - William J Janssen
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
- Department of Medicine, University of Colorado, Aurora, Colorado
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10
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Castleman MJ, Stumpf MM, Therrien NR, Smith MJ, Lesteberg KE, Palmer BE, Maloney JP, Janssen WJ, Mould KJ, Beckham JD, Pelanda R, Torres RM. Autoantibodies elicited with SARS-CoV-2 infection are linked to alterations in double negative B cells. Front Immunol 2022; 13:988125. [PMID: 36131937 PMCID: PMC9484582 DOI: 10.3389/fimmu.2022.988125] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022] Open
Abstract
Double negative (DN) B cells (CD27-IgD-) comprise a heterogenous population of DN1, DN2, and the recently described DN3 and DN4 subsets. In autoimmune disease, DN2 cells are reported to be precursors to autoreactive antibody secreting cells and expansion of DN2 cells is linked to elevated interferon levels. Severe SARS-CoV-2 infection is characterized by elevated systemic levels of pro-inflammatory cytokines and serum autoantibodies and expansion of the DN2 subset in severe SARS-CoV-2 infection has been reported. However, the activation status, functional capacity and contribution to virally-induced autoantibody production by DN subsets is not established. Here, we validate the finding that severe SARS-CoV-2 infection is associated with a reduction in the frequency of DN1 cells coinciding with an increase in the frequency of DN2 and DN3 cells. We further demonstrate that with severe viral infection DN subsets are at a heightened level of activation, display changes in immunoglobulin class isotype frequency and have functional BCR signaling. Increases in overall systemic inflammation (CRP), as well as specific pro-inflammatory cytokines (TNFα, IL-6, IFNγ, IL-1β), significantly correlate with the skewing of DN1, DN2 and DN3 subsets during severe SARS-CoV-2 infection. Importantly, the reduction in DN1 cell frequency and expansion of the DN3 population during severe infection significantly correlates with increased levels of serum autoantibodies. Thus, systemic inflammation during SARS-CoV-2 infection drives changes in Double Negative subset frequency, likely impacting their contribution to generation of autoreactive antibodies.
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Affiliation(s)
- Moriah J. Castleman
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Megan M. Stumpf
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Nicholas R. Therrien
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Mia J. Smith
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
- Barbara Davis Center for Diabetes, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Kelsey E. Lesteberg
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Medicine, Division of Infectious Disease, University of Colorado School of Medicine, Aurora, CO, United States
| | - Brent E. Palmer
- Department of Medicine, Division of Allergy and Clinical Immunology, University of Colorado School of Medicine, Aurora, CO, United States
| | - James P. Maloney
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, United States
| | - William J. Janssen
- Department of Medicine, National Jewish Health, Denver, CO, United States
- Department of Medicine, University of Colorado, Aurora, CO, United States
| | - Kara J. Mould
- Department of Medicine, National Jewish Health, Denver, CO, United States
- Department of Medicine, University of Colorado, Aurora, CO, United States
| | - J. David Beckham
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
- Department of Medicine, Division of Infectious Disease, University of Colorado School of Medicine, Aurora, CO, United States
- Rocky Mountain Regional Veterans affairs (VA), Medical Center, Aurora, CO, United States
| | - Roberta Pelanda
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Raul M. Torres
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO, United States
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11
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Castleman MJ, Stumpf MM, Therrien NR, Smith MJ, Lesteberg KE, Palmer BE, Maloney JP, Janssen WJ, Mould KJ, Beckham JD, Pelanda R, Torres RM. SARS-CoV-2 infection relaxes peripheral B cell tolerance. J Exp Med 2022; 219:e20212553. [PMID: 35420627 PMCID: PMC9014793 DOI: 10.1084/jem.20212553] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/04/2022] [Accepted: 03/30/2022] [Indexed: 12/13/2022] Open
Abstract
Severe SARS-CoV-2 infection is associated with strong inflammation and autoantibody production against diverse self-antigens, suggesting a system-wide defect in B cell tolerance. BND cells are a B cell subset in healthy individuals harboring autoreactive but anergic B lymphocytes. In vitro evidence suggests inflammatory stimuli can breach peripheral B cell tolerance in this subset. We asked whether SARS-CoV-2-associated inflammation impairs BND cell peripheral tolerance. To address this, PBMCs and plasma were collected from healthy controls, individuals immunized against SARS-CoV-2, or subjects with convalescent or severe SARS-CoV-2 infection. We demonstrate that BND cells from severely infected individuals are significantly activated, display reduced inhibitory receptor expression, and restored BCR signaling, indicative of a breach in anergy during viral infection, supported by increased levels of autoreactive antibodies. The phenotypic and functional BND cell alterations significantly correlate with increased inflammation in severe SARS-CoV-2 infection. Thus, autoreactive BND cells are released from peripheral tolerance with SARS-CoV-2 infection, likely as a consequence of robust systemic inflammation.
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Affiliation(s)
- Moriah J. Castleman
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO
| | - Megan M. Stumpf
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO
| | - Nicholas R. Therrien
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO
| | - Mia J. Smith
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO
- Barbara Davis Center for Diabetes, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Kelsey E. Lesteberg
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO
- Department of Medicine, Division of Infectious Disease, University of Colorado School of Medicine, Aurora, CO
| | - Brent E. Palmer
- Department of Medicine, Division of Allergy and Clinical Immunology, University of Colorado School of Medicine, Aurora, CO
| | - James P. Maloney
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO
| | - William J. Janssen
- Department of Medicine, National Jewish Health, Denver, CO
- Department of Medicine, University of Colorado, Aurora, CO
| | - Kara J. Mould
- Department of Medicine, National Jewish Health, Denver, CO
- Department of Medicine, University of Colorado, Aurora, CO
| | - J. David Beckham
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO
- Department of Medicine, Division of Infectious Disease, University of Colorado School of Medicine, Aurora, CO
- Rocky Mountain Regional VA, Medical Center, Aurora, CO
| | - Roberta Pelanda
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO
| | - Raul M. Torres
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO
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12
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Heinzelmann K, Hu Q, Hu Y, Dobrinskikh E, Ansari M, Melo-Narváez MC, Ulke HM, Leavitt C, Mirita C, Trudeau T, Saal ML, Rice P, Gao B, Janssen WJ, Yang IV, Schiller HB, Vladar EK, Lehmann M, Königshoff M. Single-cell RNA sequencing identifies G-protein coupled receptor 87 as a basal cell marker expressed in distal honeycomb cysts in idiopathic pulmonary fibrosis. Eur Respir J 2022; 59:2102373. [PMID: 35604813 PMCID: PMC9203838 DOI: 10.1183/13993003.02373-2021] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 03/02/2022] [Indexed: 11/15/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a devastating and life-threatening lung disease characterised by epithelial reprogramming and increased extracellular matrix deposition leading to loss of lung function. Prominent histopathological structures in the distal IPF lung include honeycomb cysts in the alveolar space [1]. These are heterogeneous bronchiolised areas that feature clusters of simple epithelium with keratin (KRT)5+ basal-like cells interspersed with pseudostratified epithelium containing differentiated, hyperplastic epithelial cells, as well as aberrant ciliated cells [2–5]. Recent single-cell RNA sequencing studies of whole lungs from IPF and donor tissue revealed cellular subtypes unique to IPF, including basaloid KRT5−/KRT17+ cells present in the distal lung [6–10]. Bronchiolisation and honeycombing are features of IPF. ScRNA sequencing identified GPR87 as a novel marker of basal cells in IPF, enriched in honeycomb cysts. GPR87 overexpression resulted in aberrant airway cell differentiation. https://bit.ly/3i4dXeT
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Affiliation(s)
- Katharina Heinzelmann
- Institute of Lung Health and Immunity, Comprehensive Pneumology Center Munich, Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
- K. Heinzelmann and Q. Hu contributed equally
| | - Qianjiang Hu
- Institute of Lung Health and Immunity, Comprehensive Pneumology Center Munich, Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
- Division of Pulmonary, Allergy and Critical Care Medicine, School of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- K. Heinzelmann and Q. Hu contributed equally
| | - Yan Hu
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Evgenia Dobrinskikh
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Meshal Ansari
- Institute of Lung Health and Immunity, Comprehensive Pneumology Center Munich, Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - M Camila Melo-Narváez
- Institute of Lung Health and Immunity, Comprehensive Pneumology Center Munich, Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Henrik M Ulke
- Institute of Lung Health and Immunity, Comprehensive Pneumology Center Munich, Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Colton Leavitt
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Carol Mirita
- Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
| | - Tammy Trudeau
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Maxwell L Saal
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Pamela Rice
- Eastern Colorado VA Healthcare System, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
| | - Bifeng Gao
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - William J Janssen
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, Dept of Medicine, National Jewish Health, Denver, CO, USA
| | - Ivana V Yang
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Herbert B Schiller
- Institute of Lung Health and Immunity, Comprehensive Pneumology Center Munich, Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Eszter K Vladar
- Dept of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA
- Dept of Cell and Developmental Biology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Mareike Lehmann
- Institute of Lung Health and Immunity, Comprehensive Pneumology Center Munich, Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
- M. Lehmann and M. Königshoff contributed equally to this article as lead authors and supervised the work
| | - Melanie Königshoff
- Division of Pulmonary, Allergy and Critical Care Medicine, School of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- M. Lehmann and M. Königshoff contributed equally to this article as lead authors and supervised the work
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13
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Saleh LS, Amer LD, Thompson BJ, Danhorn T, Knapp JR, Gibbings SL, Thomas S, Barthel L, O'Connor BP, Janssen WJ, Alper S, Bryant SJ. Mapping Macrophage Polarization and Origin during the Progression of the Foreign Body Response to a Poly(ethylene glycol) Hydrogel Implant. Adv Healthc Mater 2022; 11:e2102209. [PMID: 34967497 PMCID: PMC9081184 DOI: 10.1002/adhm.202102209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/04/2021] [Indexed: 11/10/2022]
Abstract
Poly(ethylene glycol) (PEG) hydrogels hold promise for in vivo applications but induce a foreign body response (FBR). While macrophages are key in the FBR, many questions remain. This study investigates temporal changes in the transcriptome of implant-associated monocytes and macrophages. Proinflammatory pathways are upregulated in monocytes compared to control monocytes but subside by day 28. Macrophages are initially proinflammatory but shift to a profibrotic state by day 14, coinciding with fibrous capsule emergence. Next, this study assesses the origin of macrophages responsible for fibrous encapsulation using wildtype, C-C Motif Chemokine Receptor 2 (CCR2)-/- mice that lack recruited macrophages, and Macrophage Fas-Induced Apoptosis (MaFIA) mice that enable macrophage ablation. Subpopulations of recruited and tissue-resident macrophages are identified. Fibrous encapsulation proceeds in CCR2-/- mice similar to wildtype mice. However, studies in MaFIA mice indicate that macrophages are necessary for fibrous capsule formation. These findings suggest that macrophage origin impacts the FBR progression and provides evidence that tissue-resident macrophages and not the recruited macrophages may drive fibrosis in the FBR to PEG hydrogels. This study demonstrates that implant-associated monocytes and macrophages have temporally distinct transcriptomes in the FBR and that profibrotic pathways associated with macrophages may be enriched in tissue-resident macrophages.
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Affiliation(s)
- Leila S. Saleh
- Department of Chemical and Biological Engineering University of Colorado at Boulder 3415 Colorado Ave Boulder CO 80309 USA
| | - Luke D. Amer
- Department of Chemical and Biological Engineering University of Colorado at Boulder 3415 Colorado Ave Boulder CO 80309 USA
| | - Brittany J. Thompson
- Materials Science and Engineering Program University of Colorado at Boulder 3415 Colorado Ave Boulder CO 80309 USA
| | - Thomas Danhorn
- Center for Genes Environment and Health National Jewish Health 1400 Jackson St Denver CO 80206 USA
| | - Jennifer R. Knapp
- Center for Genes Environment and Health National Jewish Health 1400 Jackson St Denver CO 80206 USA
| | | | - Stacey Thomas
- Division of Pulmonary Sciences and Critical Care Medicine University of Colorado Denver Aurora CO 80045 USA
| | - Lea Barthel
- Division of Pulmonary Sciences and Critical Care Medicine University of Colorado Denver Aurora CO 80045 USA
| | - Brian P. O'Connor
- Center for Genes Environment and Health National Jewish Health 1400 Jackson St Denver CO 80206 USA
- Department of Immunology and Genomic Medicine National Jewish Health Denver CO 80206 USA
| | - William J. Janssen
- Division of Pulmonary Sciences and Critical Care Medicine University of Colorado Denver Aurora CO 80045 USA
- Division of Pulmonary Sleep, and Critical Care Medicine National Jewish Health Denver CO 80206 USA
| | - Scott Alper
- Center for Genes Environment and Health National Jewish Health 1400 Jackson St Denver CO 80206 USA
- Department of Immunology and Genomic Medicine National Jewish Health Denver CO 80206 USA
- Department of Immunology and Microbiology University of Colorado School of Medicine Aurora CO 80045 USA
| | - Stephanie J. Bryant
- Department of Chemical and Biological Engineering University of Colorado at Boulder 3415 Colorado Ave Boulder CO 80309 USA
- Materials Science and Engineering Program University of Colorado at Boulder 3415 Colorado Ave Boulder CO 80309 USA
- BioFrontiers Institute University of Colorado at Boulder Boulder CO 80309 USA
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14
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Xu J, Xu L, Sui P, Chen J, Moya EA, Hume P, Janssen WJ, Duran JM, Thistlethwaite P, Carlin A, Gulleman P, Banaschewski B, Goldy MK, Yuan JXJ, Malhotra A, Pryhuber G, Crotty-Alexander L, Deutsch G, Young LR, Sun X. Excess neuropeptides in lung signal through endothelial cells to impair gas exchange. Dev Cell 2022; 57:839-853.e6. [PMID: 35303432 PMCID: PMC9137452 DOI: 10.1016/j.devcel.2022.02.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 02/02/2022] [Accepted: 02/23/2022] [Indexed: 01/16/2023]
Abstract
Although increased neuropeptides are often detected in lungs that exhibit respiratory distress, whether they contribute to the condition is unknown. Here, we show in a mouse model of neuroendocrine cell hyperplasia of infancy, a pediatric disease with increased pulmonary neuroendocrine cells (PNECs), excess PNEC-derived neuropeptides are responsible for pulmonary manifestations including hypoxemia. In mouse postnatal lung, prolonged signaling from elevated neuropeptides such as calcitonin gene-related peptide (CGRP) activate receptors enriched on endothelial cells, leading to reduced cellular junction gene expression, increased endothelium permeability, excess lung fluid, and hypoxemia. Excess fluid and hypoxemia were effectively attenuated by either prevention of PNEC formation, inactivation of CGRP gene, endothelium-specific inactivation of CGRP receptor gene, or treatment with CGRP receptor antagonist. Neuropeptides were increased in human lung diseases with excess fluid such as acute respiratory distress syndrome. Our findings suggest that restricting neuropeptide function may limit fluid and improve gas exchange in these conditions.
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Affiliation(s)
- Jinhao Xu
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA; Department of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Le Xu
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Pengfei Sui
- CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
| | - Jiyuan Chen
- Division of Pulmonary, Critical Care and Sleep Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92121, USA
| | - Esteban A Moya
- Division of Physiology, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Patrick Hume
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA
| | - William J Janssen
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA
| | - Jason M Duran
- Division of Cardiology, Department of Internal Medicine, University of California San Diego Medical Center, La Jolla, CA 92037, USA
| | - Patricia Thistlethwaite
- Division of Cardiothoracic Surgery, University of California San Diego, La Jolla, CA 92093, USA
| | - Aaron Carlin
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Peter Gulleman
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Brandon Banaschewski
- Division of Pulmonary and Sleep Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA 16104, USA
| | - Mary Kate Goldy
- Division of Pulmonary and Sleep Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA 16104, USA
| | - Jason X-J Yuan
- Division of Pulmonary, Critical Care and Sleep Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92121, USA
| | - Atul Malhotra
- Division of Pulmonary, Critical Care and Sleep Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92121, USA
| | - Gloria Pryhuber
- School of Medicine and Dentistry, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Laura Crotty-Alexander
- Division of Pulmonary, Critical Care and Sleep Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92121, USA; Veterans Affairs San Diego Healthcare System, La Jolla, CA 92161, USA
| | - Gail Deutsch
- Department of Laboratories, Seattle Children's Hospital, University of Washington, Seattle, WA 98105, USA
| | - Lisa R Young
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Division of Pulmonary and Sleep Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA 16104, USA
| | - Xin Sun
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA; Department of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA.
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15
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Bouchard BA, Colovos C, Lawson MA, Osborn ZT, Sackheim AM, Mould KJ, Janssen WJ, Cohen MJ, Majumdar D, Freeman K. Increased histone-DNA complexes and endothelial-dependent thrombin generation in severe COVID-19. Vascul Pharmacol 2022; 142:106950. [PMID: 34871770 PMCID: PMC8641427 DOI: 10.1016/j.vph.2021.106950] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/29/2021] [Accepted: 11/30/2021] [Indexed: 01/08/2023]
Abstract
Coagulopathy in severe COVID-19 is common but poorly understood. The purpose of this study was to determine how SARS-CoV-2 infection impacts histone levels, fibrin structure, and endogenous thrombin potential in the presence and absence of endothelial cells. We studied individuals with SARS-CoV-2 infection and acute respiratory distress syndrome at the time of initiation of mechanical ventilation compared to healthy controls. Circulating histone-DNA complexes were elevated in the plasma of COVID-19 patients relative to healthy controls (n=6, each group). Using calibrated automated thrombography, thrombin generation was altered in COVID-19 patient plasma samples. Despite having increased endogenous thrombin potential, patient plasma samples exhibited prolonged lag times and times to peak thrombin in the presence of added tissue factor and PCPS. Strikingly different results were observed when endothelial cells were used in place of tissue factor and PCPS. While healthy control plasma samples did not generate measurable thrombin after 60 min, plasma samples from COVID-19+ patients formed thrombin (mean lag time ~20 min). Consistent with the observed alterations in thrombin generation, clots from COVID-19 subjects exhibited a denser fibrin network, thinner fibers and lower fibrin resolvability. Elevated histones, aberrant fibrin formation, and increased endothelial-dependent thrombin generation may contribute to coagulopathy in COVID-19.
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Affiliation(s)
- Beth A Bouchard
- Department of Biochemistry, University of Vermont, Burlington, VT, USA.
| | - Christos Colovos
- Department of Surgery, University of Vermont, Burlington, VT, USA
| | - Michael A Lawson
- Department of Surgery, University of Vermont, Burlington, VT, USA
| | - Zachary T Osborn
- Department of Surgery, University of Vermont, Burlington, VT, USA
| | | | - Kara J Mould
- Department of Medicine, National Jewish Health, Denver, CO, USA
| | | | - Mitchell J Cohen
- Department of Surgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Devdoot Majumdar
- Department of Surgery, University of Vermont, Burlington, VT, USA
| | - Kalev Freeman
- Department of Surgery, University of Vermont, Burlington, VT, USA
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16
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McCubbrey AL, McManus SA, McClendon JD, Thomas SM, Chatwin HB, Reisz JA, D'Alessandro A, Mould KJ, Bratton DL, Henson PM, Janssen WJ. Polyamine import and accumulation causes immunomodulation in macrophages engulfing apoptotic cells. Cell Rep 2022; 38:110222. [PMID: 35021097 PMCID: PMC8859864 DOI: 10.1016/j.celrep.2021.110222] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 10/26/2021] [Accepted: 12/15/2021] [Indexed: 01/01/2023] Open
Abstract
Phagocytosis of apoptotic cells, termed efferocytosis, is critical for tissue homeostasis and drives anti-inflammatory programming in engulfing macrophages. Here, we assess metabolites in naive and inflammatory macrophages following engulfment of multiple cellular and non-cellular targets. Efferocytosis leads to increases in the arginine-derived polyamines, spermidine and spermine, in vitro and in vivo. Surprisingly, polyamine accumulation after efferocytosis does not arise from retention of apoptotic cell metabolites or de novo synthesis but from enhanced polyamine import that is dependent on Rac1, actin, and PI3 kinase. Blocking polyamine import prevents efferocytosis from suppressing macrophage interleukin (IL)-1β or IL-6. This identifies efferocytosis as a trigger for polyamine import and accumulation, and imported polyamines as mediators of efferocytosis-induced immune reprogramming.
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Affiliation(s)
- Alexandra L McCubbrey
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Denver, CO 80206, USA; Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, Aurora, CO 80045, USA.
| | - Shannon A McManus
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Denver, CO 80206, USA
| | - Jazalle D McClendon
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Denver, CO 80206, USA
| | | | - Hope B Chatwin
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Denver, CO 80206, USA
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Kara J Mould
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Denver, CO 80206, USA; Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, Aurora, CO 80045, USA
| | - Donna L Bratton
- Division of Pediatric Allergy and Clinical Immunology, Department of Pediatrics, Denver, CO 80206, USA; Program in Cell Biology, Department of Pediatrics, National Jewish Health, Denver, CO 80206, USA
| | - Peter M Henson
- Program in Cell Biology, Department of Pediatrics, National Jewish Health, Denver, CO 80206, USA
| | - William J Janssen
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Denver, CO 80206, USA; Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, Aurora, CO 80045, USA.
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17
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King EM, Hume PS, Janssen WJ, McCubbrey AL. Isolation and Analysis of Macrophage Subsets from the Mouse and Human Lung. Methods Mol Biol 2022; 2506:257-267. [PMID: 35771477 PMCID: PMC10978154 DOI: 10.1007/978-1-0716-2364-0_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Pulmonary macrophages are heterogeneous. Distinct populations of resident tissue macrophages exist in the lung airspace and tissue compartments during homeostasis. During inflammation, these are joined by monocyte-derived recruited macrophages. Flow cytometry can be used to identify and purify lung macrophage subsets. Here, we describe methods for identifying and isolating macrophages from bronchoalveolar lavage and digested lung tissues from mouse and human. We also describe basic staining for flow cytometry analysis of different macrophage subsets.
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Affiliation(s)
- Emily M King
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, CO, USA
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Patrick S Hume
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, CO, USA
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - William J Janssen
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, CO, USA
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Alexandra L McCubbrey
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, CO, USA.
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA.
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18
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Okamoto Y, Devoe S, Seto N, Minarchick V, Wilson T, Rothfuss HM, Mohning MP, Arbet J, Kroehl M, Visser A, August J, Thomas SM, Lenis Charry L, Fleischer C, Feser ML, Frazer-Abel AA, Norris JM, Cherrington BD, Janssen WJ, Kaplan MJ, Deane KD, Holers VM, Demoruelle MK. Sputum Neutrophil Extracellular Trap Subsets Associate with IgA Anti-Citrullinated Protein Antibodies in Subjects At-Risk for Rheumatoid Arthritis. Arthritis Rheumatol 2021; 74:38-48. [PMID: 34369110 PMCID: PMC8712364 DOI: 10.1002/art.41948] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 08/03/2021] [Indexed: 11/06/2022]
Abstract
Objective Mechanisms leading to anti–citrullinated protein antibody (ACPA) generation in rheumatoid arthritis (RA) are hypothesized to originate in the lung. We undertook this study to understand associations between neutrophil extracellular trap (NET) formation in the lung and local ACPA generation in subjects at risk of developing RA. Methods Induced sputum was collected from 49 subjects at risk of developing RA, 12 patients with RA, and 18 controls. Sputum neutrophils were tested for ex vivo NET formation, and sputum‐induced NET formation of control neutrophils was measured using immunofluorescence imaging. Sputum macrophages were tested for ex vivo endocytosis of apoptotic and opsonized cells. Levels of ACPA, NET remnants, and inflammatory proteins were quantified in sputum supernatant. Results Spontaneous citrullinated histone H3 (Cit‐H3)–expressing NET formation was higher in sputum neutrophils from at‐risk subjects and RA patients compared to controls (median 12%, 22%, and 0%, respectively; P < 0.01). In at‐risk subjects, sputum IgA ACPA correlated with the percentage of neutrophils that underwent Cit‐H3+ NET formation (r = 0.49, P = 0.002) and levels of Cit‐H3+ NET remnants (r = 0.70, P < 0.001). Reduced endocytic capacity of sputum macrophages was found in at‐risk subjects and RA patients compared to controls. Using a mediation model, we found that sputum inflammatory proteins were associated with sputum IgA ACPA through a pathway mediated by Cit‐H3+ NET remnants. Sputum‐induced Cit‐H3+ NET formation also correlated with sputum levels of interleukin‐1β (IL‐1β), IL‐6, and tumor necrosis factor in at‐risk subjects, suggesting a causal relationship. Conclusion These data support a potential mechanism for mucosal ACPA generation in subjects at risk of developing RA, whereby inflammation leads to increased citrullinated protein–expressing NETs that promote local ACPA generation.
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Affiliation(s)
- Yuko Okamoto
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA.,Tokyo Women's Medical University School of Medicine, Department of Rheumatology, Tokyo, Japan
| | - Stephanie Devoe
- University of Colorado Denver, Department of Immunology, Aurora, CO, USA
| | - Nickie Seto
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda
| | - Valerie Minarchick
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Timothy Wilson
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Heather M Rothfuss
- University of Wyoming, Department of Zoology and Physiology, Laramie, WY, USA
| | - Michael P Mohning
- National Jewish Health, Division of Pulmonary, Critical Care and Sleep Medicine, Denver, CO, USA
| | - Jaron Arbet
- University of Colorado Denver, Department of Biostatistics and Informatics, Aurora, CO, USA
| | - Miranda Kroehl
- University of Colorado Denver, Department of Biostatistics and Informatics, Aurora, CO, USA
| | - Ashley Visser
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Justin August
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Stacey M Thomas
- National Jewish Health, Division of Pulmonary, Critical Care and Sleep Medicine, Denver, CO, USA
| | - Laura Lenis Charry
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Chelsie Fleischer
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - Marie L Feser
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | | | - Jill M Norris
- Colorado School of Public Health, Department of Epidemiology, Aurora, CO, USA
| | - Brian D Cherrington
- University of Wyoming, Department of Zoology and Physiology, Laramie, WY, USA
| | - William J Janssen
- National Jewish Health, Division of Pulmonary, Critical Care and Sleep Medicine, Denver, CO, USA
| | - Mariana J Kaplan
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda
| | - Kevin D Deane
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
| | - V Michael Holers
- University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA
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19
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Mould KJ, Moore CM, McManus SA, McCubbrey AL, McClendon JD, Griesmer CL, Henson PM, Janssen WJ. Airspace Macrophages and Monocytes Exist in Transcriptionally Distinct Subsets in Healthy Adults. Am J Respir Crit Care Med 2021; 203:946-956. [PMID: 33079572 DOI: 10.1164/rccm.202005-1989oc] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Rationale: Macrophages are the most abundant immune cell in the alveoli and small airways and are traditionally viewed as a homogeneous population during health. Whether distinct subsets of airspace macrophages are present in healthy humans is unknown. Single-cell RNA sequencing allows for examination of transcriptional heterogeneity between cells and between individuals. Understanding the conserved repertoire of airspace macrophages during health is essential to understanding cellular programing during disease.Objectives: We sought to determine the transcriptional heterogeneity of human cells obtained from BAL of healthy adults.Methods: Ten subjects underwent bronchoscopy with BAL. Cells from lavage were subjected to single-cell RNA sequencing. Unique cell populations and putative functions were identified. Transcriptional profiles were compared across individuals.Measurements and Main Results: We identify two novel subgroups of resident airspace macrophages-defined by proinflammatory and metallothionein gene expression profiles. We define subsets of monocyte-like cells and compare them with peripheral blood mononuclear cells. Finally, we compare global macrophage and monocyte programing between males and females.Conclusions: Healthy human airspaces contain multiple populations of myeloid cells that are highly conserved between individuals and between sexes. Resident macrophages make up the largest population and include novel subsets defined by inflammatory and metal-binding profiles. Monocyte-like cells within the airspaces are transcriptionally aligned with circulating blood cells and include a rare population defined by expression of cell-matrix interaction genes. This study is the first to delineate the conserved heterogeneity of airspace immune cells during health and identifies two previously unrecognized macrophage subsets.
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Affiliation(s)
- Kara J Mould
- Department of Medicine.,Department of Biomedical Research, and
| | - Camille M Moore
- Department of Pediatrics, National Jewish Health, Denver, Colorado.,Department of Medicine, University of Colorado, Aurora, Colorado; and
| | | | | | | | | | - Peter M Henson
- Department of Biomedical Research, and.,Department of Biostatistics and Informatics, University of Colorado, Denver, Colorado
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20
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21
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Thomas SM, Bednarek J, Janssen WJ, Hume PS. Air-Inflation of Murine Lungs with Vascular Perfusion-Fixation. J Vis Exp 2021:10.3791/62215. [PMID: 33616116 PMCID: PMC9417600 DOI: 10.3791/62215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Lung histology is often used to investigate the contributions provided by airspace cells during lung homeostasis and disease pathogenesis. However, commonly used instillation-based fixation methods can displace airspace cells and mucus into terminal airways and can alter tissue morphology. In comparison, vascular perfusion-fixation techniques are superior at preserving the location and morphology of cells within airspaces and the mucosal lining. However, if positive airway pressure is not simultaneously applied, regions of the lungs may collapse and capillaries may bulge into the alveolar spaces, leading to distortion of the lung anatomy. Herein, we describe an inexpensive method for air-inflation during vascular perfusion-fixation to preserve the morphology and location of airway and alveolar cells and interstitium in murine lungs for downstream histologic studies. Constant air pressure is delivered to the lungs via the trachea from a sealed, air-filled chamber that maintains pressure via an adjustable liquid column while fixative is perfused through the right ventricle.
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Affiliation(s)
- Stacey M Thomas
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Medicine, National Jewish Health
| | - Joseph Bednarek
- Section of Pediatric Gastroenterology, Hepatology, and Nutrition, Children's Hospital Colorado
| | - William J Janssen
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Medicine, National Jewish Health
| | - Patrick S Hume
- Division of Pulmonary, Sleep and Critical Care Medicine, Department of Medicine, National Jewish Health;
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22
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Morgan LE, Jaramillo AM, Shenoy SK, Raclawska D, Emezienna NA, Richardson VL, Hara N, Harder AQ, NeeDell JC, Hennessy CE, El-Batal HM, Magin CM, Grove Villalon DE, Duncan G, Hanes JS, Suk JS, Thornton DJ, Holguin F, Janssen WJ, Thelin WR, Evans CM. Disulfide disruption reverses mucus dysfunction in allergic airway disease. Nat Commun 2021; 12:249. [PMID: 33431872 PMCID: PMC7801631 DOI: 10.1038/s41467-020-20499-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 11/20/2020] [Indexed: 01/04/2023] Open
Abstract
Airway mucus is essential for lung defense, but excessive mucus in asthma obstructs airflow, leading to severe and potentially fatal outcomes. Current asthma treatments have minimal effects on mucus, and the lack of therapeutic options stems from a poor understanding of mucus function and dysfunction at a molecular level and in vivo. Biophysical properties of mucus are controlled by mucin glycoproteins that polymerize covalently via disulfide bonds. Once secreted, mucin glycopolymers can aggregate, form plugs, and block airflow. Here we show that reducing mucin disulfide bonds disrupts mucus in human asthmatics and reverses pathological effects of mucus hypersecretion in a mouse allergic asthma model. In mice, inhaled mucolytic treatment loosens mucus mesh, enhances mucociliary clearance, and abolishes airway hyperreactivity (AHR) to the bronchoprovocative agent methacholine. AHR reversal is directly related to reduced mucus plugging. These findings establish grounds for developing treatments to inhibit effects of mucus hypersecretion in asthma.
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Affiliation(s)
- Leslie E Morgan
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Ana M Jaramillo
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Siddharth K Shenoy
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Dorota Raclawska
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Nkechinyere A Emezienna
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA.,Department of Obstetrics and Gynecology, Howard University College of Medicine, Washington, DC, USA
| | - Vanessa L Richardson
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Naoko Hara
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Anna Q Harder
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - James C NeeDell
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Corinne E Hennessy
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Hassan M El-Batal
- Department of Bioengineering, College of Engineering, Design, and Computing, University of Colorado, Denver
- Anschutz Medial Campus, Denver, CO, USA
| | - Chelsea M Magin
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA.,Department of Bioengineering, College of Engineering, Design, and Computing, University of Colorado, Denver
- Anschutz Medial Campus, Denver, CO, USA
| | | | - Gregg Duncan
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Fischell Department of Bioengineering, School of Engineering University of Maryland, College Park, MD, USA
| | - Justin S Hanes
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Pharmacology & Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Jung Soo Suk
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - David J Thornton
- Wellcome Trust Centre for Cell-Matrix Research and the Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, The University of Manchester, Manchester, UK
| | - Fernando Holguin
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA
| | - William J Janssen
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA.,Department of Medicine National Jewish Health, Denver, CO, USA.,Department of Immunology and Microbiology, School of Medicine, University of Colorado, Aurora, CO, USA
| | | | - Christopher M Evans
- Department of Medicine, School of Medicine, University of Colorado, Aurora, CO, USA. .,Department of Immunology and Microbiology, School of Medicine, University of Colorado, Aurora, CO, USA.
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23
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Leach SM, Gibbings SL, Tewari AD, Atif SM, Vestal B, Danhorn T, Janssen WJ, Wager TD, Jakubzick CV. Human and Mouse Transcriptome Profiling Identifies Cross-Species Homology in Pulmonary and Lymph Node Mononuclear Phagocytes. Cell Rep 2020; 33:108337. [PMID: 33147458 PMCID: PMC7673261 DOI: 10.1016/j.celrep.2020.108337] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/15/2020] [Accepted: 10/08/2020] [Indexed: 12/24/2022] Open
Abstract
The mononuclear phagocyte (MP) system consists of macrophages, monocytes, and dendritic cells (DCs). MP subtypes play distinct functional roles in steady-state and inflammatory conditions. Although murine MPs are well characterized, their pulmonary and lymph node (LN) human homologs remain poorly understood. To address this gap, we have created a gene expression compendium across 24 distinct human and murine lung and LN MPs, along with human blood and murine spleen MPs, to serve as validation datasets. In-depth RNA sequencing identifies corresponding human-mouse MP subtypes and determines marker genes shared and divergent across species. Unexpectedly, only 13%-23% of the top 1,000 marker genes (i.e., genes not shared across species-specific MP subtypes) overlap in corresponding human-mouse MP counterparts. Lastly, CD88 in both species helps distinguish monocytes/macrophages from DCs. Our cross-species expression compendium serves as a resource for future translational studies to investigate beforehand whether pursuing specific MP subtypes or genes will prove fruitful.
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Affiliation(s)
- Sonia M Leach
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO 80206, USA; Department of Biomedical Research, National Jewish Health, Denver, CO 80206, USA
| | - Sophie L Gibbings
- Department of Pediatrics, National Jewish Health, Denver, CO 80206, USA
| | - Anita D Tewari
- Department of Microbiology and Immunology, Dartmouth College, Hanover, NH 03756, USA
| | - Shaikh M Atif
- Department of Medicine, Division of Asthma, Allergy, and Clinical Immunology, University of Colorado, Denver, CO 80045, USA
| | - Brian Vestal
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO 80206, USA; Department of Biomedical Research, National Jewish Health, Denver, CO 80206, USA
| | - Thomas Danhorn
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO 80206, USA
| | - William J Janssen
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA; Division of Pulmonary Sciences and Critical Care, University of Colorado, Denver, CO 80045, USA
| | - Tor D Wager
- Department of Psychology and Neuroscience, University of Colorado, Boulder, CO 80309, USA
| | - Claudia V Jakubzick
- Department of Pediatrics, National Jewish Health, Denver, CO 80206, USA; Department of Microbiology and Immunology, Dartmouth College, Hanover, NH 03756, USA; Department of Immunology, University of Colorado, Denver Anschutz Campus, Denver, CO 80045, USA.
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24
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Kumar R, Mickael C, Kassa B, Sanders L, Hernandez-Saavedra D, Koyanagi DE, Kumar S, Pugliese SC, Thomas S, McClendon J, Maloney JP, Janssen WJ, Stenmark KR, Tuder RM, Graham BB. Interstitial macrophage-derived thrombospondin-1 contributes to hypoxia-induced pulmonary hypertension. Cardiovasc Res 2020; 116:2021-2030. [PMID: 31710666 PMCID: PMC7519884 DOI: 10.1093/cvr/cvz304] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 03/06/2019] [Accepted: 11/08/2019] [Indexed: 01/05/2023] Open
Abstract
AIMS Transforming growth factor-β (TGF-β) signalling is required for chronic hypoxia-induced pulmonary hypertension (PH). The activation of TGF-β by thrombospondin-1 (TSP-1) contributes to the pathogenesis of hypoxia-induced PH. However, neither the cellular source of pathologic TSP-1 nor the downstream signalling pathway that link activated TGF-β to PH have been determined. In this study, we hypothesized that circulating monocytes, which are recruited to become interstitial macrophages (IMs), are the major source of TSP-1 in hypoxia-exposed mice, and TSP-1 activates TGF-β with increased Rho-kinase signalling, causing vasoconstriction. METHODS AND RESULTS Flow cytometry revealed that a specific subset of IMs is the major source of pathologic TSP-1 in hypoxia. Intravenous depletion and parabiosis experiments demonstrated that these cells are circulating prior to recruitment into the interstitium. Rho-kinase-mediated vasoconstriction was a major downstream target of active TGF-β. Thbs1 deficient bone marrow (BM) protected against hypoxic-PH by blocking TGF-β activation and Rho-kinase-mediated vasoconstriction. CONCLUSION In hypoxia-challenged mice, BM derived and circulating monocytes are recruited to become IMs which express TSP-1, resulting in TGF-β activation and Rho-kinase-mediated vasoconstriction.
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Affiliation(s)
- Rahul Kumar
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Zuckerberg San Francisco General Hospital and Trauma Center, University of California, San Francisco, Building 100, 3rd floor, 1001 Potrero Ave, San Francisco, CA 94110, USA
| | - Claudia Mickael
- Department of Medicine, Program in Translational Lung Research, Anschutz Medical Campus, Building RC2, 9th floor, 12700 E 19th Ave, Aurora, CO 80045, USA
| | - Biruk Kassa
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Zuckerberg San Francisco General Hospital and Trauma Center, University of California, San Francisco, Building 100, 3rd floor, 1001 Potrero Ave, San Francisco, CA 94110, USA
| | - Linda Sanders
- Department of Medicine, Program in Translational Lung Research, Anschutz Medical Campus, Building RC2, 9th floor, 12700 E 19th Ave, Aurora, CO 80045, USA
| | - Daniel Hernandez-Saavedra
- Department of Medicine, Program in Translational Lung Research, Anschutz Medical Campus, Building RC2, 9th floor, 12700 E 19th Ave, Aurora, CO 80045, USA
| | - Daniel E Koyanagi
- Department of Medicine, Program in Translational Lung Research, Anschutz Medical Campus, Building RC2, 9th floor, 12700 E 19th Ave, Aurora, CO 80045, USA
| | - Sushil Kumar
- Department of Pediatrics and Medicine, Cardiovascular Pulmonary Research Laboratory, Anschutz Medical Campus, Building RC2, 8th floor, 12700 E 19th Ave, Aurora, CO 80045, USA
| | - Steve C Pugliese
- Department of Medicine, University of Pennsylvania, 831 Gates building, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Stacey Thomas
- Department of Medicine, National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - Jazalle McClendon
- Department of Medicine, National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - James P Maloney
- Department of Medicine, Anschutz Medical Campus, Building RC2, 9th floor, 12700 E 19th Ave, Aurora, CO 80045, USA
| | - William J Janssen
- Department of Medicine, National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - Kurt R Stenmark
- Department of Pediatrics and Medicine, Cardiovascular Pulmonary Research Laboratory, Anschutz Medical Campus, Building RC2, 8th floor, 12700 E 19th Ave, Aurora, CO 80045, USA
| | - Rubin M Tuder
- Department of Medicine, Program in Translational Lung Research, Anschutz Medical Campus, Building RC2, 9th floor, 12700 E 19th Ave, Aurora, CO 80045, USA
| | - Brian B Graham
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Zuckerberg San Francisco General Hospital and Trauma Center, University of California, San Francisco, Building 100, 3rd floor, 1001 Potrero Ave, San Francisco, CA 94110, USA
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25
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Madenspacher JH, Morrell ED, Gowdy KM, McDonald JG, Thompson BM, Muse G, Martinez J, Thomas S, Mikacenic C, Nick JA, Abraham E, Garantziotis S, Stapleton RD, Meacham JM, Thomassen MJ, Janssen WJ, Cook DN, Wurfel MM, Fessler MB. Cholesterol 25-hydroxylase promotes efferocytosis and resolution of lung inflammation. JCI Insight 2020; 5:137189. [PMID: 32343675 DOI: 10.1172/jci.insight.137189] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 04/23/2020] [Indexed: 12/12/2022] Open
Abstract
Alveolar macrophages (AM) play a central role in initiation and resolution of lung inflammation, but the integration of these opposing core functions is poorly understood. AM expression of cholesterol 25-hydroxylase (CH25H), the primary biosynthetic enzyme for 25-hydroxycholesterol (25HC), far exceeds the expression of macrophages in other tissues, but no role for CH25H has been defined in lung biology. As 25HC is an agonist for the antiinflammatory nuclear receptor, liver X receptor (LXR), we speculated that CH25H might regulate inflammatory homeostasis in the lung. Here, we show that, of natural oxysterols or sterols, 25HC is induced in the inflamed lung of mice and humans. Ch25h-/- mice fail to induce 25HC and LXR target genes in the lung after LPS inhalation and exhibit delayed resolution of airway neutrophilia, which can be rescued by systemic treatment with either 25HC or synthetic LXR agonists. LXR-null mice also display delayed resolution, suggesting that native oxysterols promote resolution. During resolution, Ch25h is induced in macrophages upon their encounter with apoptotic cells and is required for LXR-dependent prevention of AM lipid overload, induction of Mertk, efferocytic resolution of airway neutrophilia, and induction of TGF-β. CH25H/25HC/LXR is, thus, an inducible metabolic axis that programs AMs for efferocytic resolution of inflammation.
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Affiliation(s)
- Jennifer H Madenspacher
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, North Carolina, USA
| | - Eric D Morrell
- Section of Pulmonary, Critical Care, and Sleep Medicine, Harborview Medical Center, Seattle, Washington, USA
| | - Kymberly M Gowdy
- Division of Pulmonary, Critical Care and Sleep Medicine, and.,Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Jeffrey G McDonald
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Bonne M Thompson
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Ginger Muse
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, North Carolina, USA
| | - Jennifer Martinez
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, North Carolina, USA
| | - Seddon Thomas
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, North Carolina, USA
| | - Carmen Mikacenic
- Section of Pulmonary, Critical Care, and Sleep Medicine, Harborview Medical Center, Seattle, Washington, USA
| | - Jerry A Nick
- Department of Medicine, National Jewish Health, Denver, Colorado, USA
| | - Edward Abraham
- Department of Medicine, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Stavros Garantziotis
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, North Carolina, USA
| | - Renee D Stapleton
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Julie M Meacham
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, North Carolina, USA
| | - Mary Jane Thomassen
- Department of Internal Medicine, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA
| | - William J Janssen
- Department of Medicine, National Jewish Health, Denver, Colorado, USA
| | - Donald N Cook
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, North Carolina, USA
| | - Mark M Wurfel
- Section of Pulmonary, Critical Care, and Sleep Medicine, Harborview Medical Center, Seattle, Washington, USA
| | - Michael B Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), NIH, Research Triangle Park, North Carolina, USA
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26
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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27
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Lee FFY, Davidson K, Harris C, McClendon J, Janssen WJ, Alper S. NF-κB mediates lipopolysaccharide-induced alternative pre-mRNA splicing of MyD88 in mouse macrophages. J Biol Chem 2020; 295:6236-6248. [PMID: 32179652 DOI: 10.1074/jbc.ra119.011495] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 03/10/2020] [Indexed: 12/14/2022] Open
Abstract
Although a robust inflammatory response is needed to combat infection, this response must ultimately be terminated to prevent chronic inflammation. One mechanism that terminates inflammatory signaling is the production of alternative mRNA splice forms in the Toll-like receptor (TLR) signaling pathway. Whereas most genes in the TLR pathway encode positive mediators of inflammatory signaling, several, including that encoding the MyD88 signaling adaptor, also produce alternative spliced mRNA isoforms that encode dominant-negative inhibitors of the response. Production of these negatively acting alternatively spliced isoforms is induced by stimulation with the TLR4 agonist lipopolysaccharide (LPS); thus, this alternative pre-mRNA splicing represents a negative feedback loop that terminates TLR signaling and prevents chronic inflammation. In the current study, we investigated the mechanisms regulating the LPS-induced alternative pre-mRNA splicing of the MyD88 transcript in murine macrophages. We found that 1) the induction of the alternatively spliced MyD88 form is due to alternative pre-mRNA splicing and not caused by another RNA regulatory mechanism, 2) MyD88 splicing is regulated by both the MyD88- and TRIF-dependent arms of the TLR signaling pathway, 3) MyD88 splicing is regulated by the NF-κB transcription factor, and 4) NF-κB likely regulates MyD88 alternative pre-mRNA splicing per se rather than regulating splicing indirectly by altering MyD88 transcription. We conclude that alternative splicing of MyD88 may provide a sensitive mechanism that ensures robust termination of inflammation for tissue repair and restoration of normal tissue homeostasis once an infection is controlled.
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Affiliation(s)
- Frank Fang-Yao Lee
- Department of Biomedical Research, National Jewish Health, Denver, Colorado 80206; Center for Genes, Environment and Health, National Jewish Health, Denver, Colorado 80206; Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado 80045
| | - Kevin Davidson
- Pulmonary and Critical Care, WakeMed Hospital, Raleigh, North Carolina 27610
| | - Chelsea Harris
- Department of Biomedical Research, National Jewish Health, Denver, Colorado 80206; Center for Genes, Environment and Health, National Jewish Health, Denver, Colorado 80206; Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado 80045
| | - Jazalle McClendon
- Department of Medicine, National Jewish Health, Denver, Colorado 80206
| | - William J Janssen
- Department of Medicine, National Jewish Health, Denver, Colorado 80206; Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado 80045
| | - Scott Alper
- Department of Biomedical Research, National Jewish Health, Denver, Colorado 80206; Center for Genes, Environment and Health, National Jewish Health, Denver, Colorado 80206; Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado 80045.
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28
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Allawzi A, McDermott I, Delaney C, Nguyen K, Banimostafa L, Trumpie A, Hernandez-Lagunas L, Riemondy K, Gillen A, Hesselberth J, El Kasmi K, Sucharov CC, Janssen WJ, Stenmark K, Bowler R, Nozik-Grayck E. Redistribution of EC-SOD resolves bleomycin-induced inflammation via increased apoptosis of recruited alveolar macrophages. FASEB J 2019; 33:13465-13475. [PMID: 31560857 PMCID: PMC6894081 DOI: 10.1096/fj.201901038rr] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 08/26/2019] [Indexed: 01/16/2023]
Abstract
A human single nucleotide polymorphism (SNP) in the matrix-binding domain of extracellular superoxide dismutase (EC-SOD), with arginine to glycine substitution at position 213 (R213G), redistributes EC-SOD from the matrix into extracellular fluids. We reported that, following bleomycin (bleo), knockin mice harboring the human R213G SNP (R213G mice) exhibit enhanced resolution of inflammation and protection against fibrosis, compared with wild-type (WT) littermates. In this study, we tested the hypothesis that the EC-SOD R213G SNP promotes resolution via accelerated apoptosis of recruited alveolar macrophage (AM). RNA sequencing and Ingenuity Pathway Analysis 7 d postbleo in recruited AM implicated increased apoptosis and blunted inflammatory responses in the R213G strain exhibiting accelerated resolution. We validated that the percentage of apoptosis was significantly elevated in R213G recruited AM vs. WT at 3 and 7 d postbleo in vivo. Recruited AM numbers were also significantly decreased in R213G mice vs. WT at 3 and 7 d postbleo. ChaC glutathione-specific γ-glutamylcyclotransferase 1 (Chac1), a proapoptotic γ-glutamyl cyclotransferase that depletes glutathione, was increased in the R213G recruited AM. Overexpression of Chac1 in vitro induced apoptosis of macrophages and was blocked by administration of cell-permeable glutathione. In summary, we provide new evidence that redistributed EC-SOD accelerates the resolution of inflammation through redox-regulated mechanisms that increase recruited AM apoptosis.-Allawzi, A., McDermott, I., Delaney, C., Nguyen, K., Banimostafa, L., Trumpie, A., Hernandez-Lagunas, L., Riemondy, K., Gillen, A., Hesselberth, J., El Kasmi, K., Sucharov, C. C., Janssen, W. J., Stenmark, K., Bowler, R., Nozik-Grayck, E. Redistribution of EC-SOD resolves bleomycin-induced inflammation via increased apoptosis of recruited alveolar macrophages.
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Affiliation(s)
- Ayed Allawzi
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Ivy McDermott
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Cassidy Delaney
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kianna Nguyen
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Laith Banimostafa
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Ashley Trumpie
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Laura Hernandez-Lagunas
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kent Riemondy
- RNA Bioscience Initiative, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Austin Gillen
- RNA Bioscience Initiative, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jay Hesselberth
- RNA Bioscience Initiative, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Karim El Kasmi
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
- Boehringer Ingelheim Pharma, Biberach, Germany
| | - Carmen C. Sucharov
- Division of Cardiology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA; and
| | | | - Kurt Stenmark
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Russell Bowler
- Department of Medicine, National Jewish Health, Denver, Colorado, USA
| | - Eva Nozik-Grayck
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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29
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Amer LD, Saleh LS, Walker C, Thomas S, Janssen WJ, Alper S, Bryant SJ. Inflammation via myeloid differentiation primary response gene 88 signaling mediates the fibrotic response to implantable synthetic poly(ethylene glycol) hydrogels. Acta Biomater 2019; 100:105-117. [PMID: 31568879 DOI: 10.1016/j.actbio.2019.09.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/20/2019] [Accepted: 09/26/2019] [Indexed: 12/19/2022]
Abstract
Synthetic hydrogels, such as poly(ethylene glycol) (PEG), are promising for a range of in vivo applications. However, like all non-biological biomaterials, synthetic hydrogels including PEG elicit a foreign body response (FBR). The FBR is thought to be initiated by adsorbed protein that is recognized by and subsequently activates inflammatory cells, notably macrophages, and culminates with fibrotic encapsulation. However, the molecular mechanisms that drive the FBR are not well understood. Toll-like receptors (TLRs) are key receptors that recognize pathogens, but also recognize altered host proteins that display damage-associated molecular patterns (DAMPs). Thus TLRs may play a role in the FBR. Here, we investigated myeloid differentiation primary response gene 88 (MyD88), a signaling adaptor protein that mediates inflammatory cytokine production induced by most TLRs. An in vitro model was used consisting of macrophages cultured on the surface of synthetic hydrogels, specifically PEG, with pre-adsorbed serum proteins. Our in vitro findings demonstrate that MyD88-dependent signaling is the predominant inflammatory pathway in macrophage activation to synthetic hydrogels. When stimulated with TLR agonists to mimic additional DAMPs present in vivo, MyD88-dependent signaling was also the predominant pathway in macrophage activation. An in vivo model of PEG hydrogels implanted subcutaneously in wild-type and MyD88-/- mice also demonstrated that MyD88 is the key contributor to the recruitment of inflammatory cells and formation of the fibrous capsule surrounding the implanted hydrogel. Taken together, findings from this study identify MyD88-mediated inflammation as being a critical pathway involved not only in the inflammatory response, but in formation of the fibrous capsule to PEG hydrogels. STATEMENT OF SIGNIFICANCE: Synthetic hydrogels are promising for in vivo applications but, like all non-biological biomaterials, synthetic hydrogels elicit a foreign body response (FBR). The molecular mechanisms that drive the FBR are not well understood. This work identifies the myeloid differentiation primary response gene 88 (MyD88) as a central mediator to macrophage activation in response to a poly(ethylene glycol) hydrogel with pre-adsorbed proteins in vitro. Moreover, MyD88 was also central to the recruitment of inflammatory cells, which included neutrophils, monocytes, and macrophages, to implanted PEG hydrogels and to fibrous encapsulation. These findings demonstrate that MyD88-mediated inflammation is responsible in part for the formation of the fibrous capsule of the FBR.
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Affiliation(s)
- Luke D Amer
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, United States; BioFrontiers Institute, University of Colorado, Boulder, CO 80309, United States
| | - Leila S Saleh
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, United States
| | - Cierra Walker
- BioFrontiers Institute, University of Colorado, Boulder, CO 80309, United States; Material Science and Engineering Program, University of Colorado, Boulder, CO 80309, United States
| | - Stacey Thomas
- Division of Pulmonary, Sleep and Critical Care Medicine, National Jewish Health, Denver, CO 80206, United States
| | - William J Janssen
- Division of Pulmonary, Sleep and Critical Care Medicine, National Jewish Health, Denver, CO 80206, United States; Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Denver, Aurora, CO 80045, United States
| | - Scott Alper
- Department of Biomedical Research and Center for Genes, Environment and Health, National Jewish Health, Denver, CO 80206, United States; Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, CO 80045, United States
| | - Stephanie J Bryant
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, United States; BioFrontiers Institute, University of Colorado, Boulder, CO 80309, United States; Material Science and Engineering Program, University of Colorado, Boulder, CO 80309, United States.
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30
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Tighe RM, Redente EF, Yu YR, Herold S, Sperling AI, Curtis JL, Duggan R, Swaminathan S, Nakano H, Zacharias WJ, Janssen WJ, Freeman CM, Brinkman RR, Singer BD, Jakubzick CV, Misharin AV. Improving the Quality and Reproducibility of Flow Cytometry in the Lung. An Official American Thoracic Society Workshop Report. Am J Respir Cell Mol Biol 2019; 61:150-161. [PMID: 31368812 PMCID: PMC6670040 DOI: 10.1165/rcmb.2019-0191st] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Defining responses of the structural and immune cells in biologic systems is critically important to understanding disease states and responses to injury. This requires accurate and sensitive methods to define cell types in organ systems. The principal method to delineate the cell populations involved in these processes is flow cytometry. Although researchers increasingly use flow cytometry, technical challenges can affect its accuracy and reproducibility, thus significantly limiting scientific advancements. This challenge is particularly critical to lung immunology, as the lung is readily accessible and therefore used in preclinical and clinical studies to define potential therapeutics. Given the importance of flow cytometry in pulmonary research, the American Thoracic Society convened a working group to highlight issues and technical challenges to the performance of high-quality pulmonary flow cytometry, with a goal of improving its quality and reproducibility.
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31
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Affiliation(s)
- Kara J Mould
- 1 Department of Medicine National Jewish Health Denver, Colorado and.,2 Department of Medicine University of Colorado Denver Denver, Colorado
| | - William J Janssen
- 1 Department of Medicine National Jewish Health Denver, Colorado and.,2 Department of Medicine University of Colorado Denver Denver, Colorado
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32
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Mould KJ, Jackson ND, Henson PM, Seibold M, Janssen WJ. Single cell RNA sequencing identifies unique inflammatory airspace macrophage subsets. JCI Insight 2019; 4:126556. [PMID: 30721157 DOI: 10.1172/jci.insight.126556] [Citation(s) in RCA: 130] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/29/2019] [Indexed: 02/06/2023] Open
Abstract
Macrophages are well recognized for their dual roles in orchestrating inflammatory responses and regulating tissue repair. In almost all acutely inflamed tissues, 2 main subclasses of macrophages coexist. These include embryonically derived resident tissue macrophages and BM-derived recruited macrophages. While it is clear that macrophage subsets categorized in this fashion display distinct transcriptional and functional profiles, whether all cells within these categories and in the same inflammatory microenvironment share similar functions or whether further specialization exists has not been determined. To investigate inflammatory macrophage heterogeneity on a more granular level, we induced acute lung inflammation in mice and performed single cell RNA sequencing of macrophages isolated from the airspaces during health, peak inflammation, and resolution of inflammation. In doing so, we confirm that cell origin is the major determinant of alveolar macrophage (AM) programing, and, to our knowledge, we describe 2 previously uncharacterized, transcriptionally distinct subdivisions of AMs based on proliferative capacity and inflammatory programing.
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Affiliation(s)
- Kara J Mould
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, USA.,Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, USA
| | | | - Peter M Henson
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, USA.,Program for Cell Biology, Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Max Seibold
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, USA.,Center for Genes, Environment, and Health and.,Program for Cell Biology, Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - William J Janssen
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado, USA.,Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado - Anschutz Medical Campus, Aurora, Colorado, USA
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33
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Neudecker V, Brodsky KS, Clambey ET, Schmidt EP, Packard TA, Davenport B, Standiford TJ, Weng T, Fletcher AA, Barthel L, Masterson JC, Furuta GT, Cai C, Blackburn MR, Ginde AA, Graner MW, Janssen WJ, Zemans RL, Evans CM, Burnham EL, Homann D, Moss M, Kreth S, Zacharowski K, Henson PM, Eltzschig HK. Neutrophil transfer of miR-223 to lung epithelial cells dampens acute lung injury in mice. Sci Transl Med 2018; 9:9/408/eaah5360. [PMID: 28931657 DOI: 10.1126/scitranslmed.aah5360] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 05/23/2017] [Indexed: 12/11/2022]
Abstract
Intercellular transfer of microRNAs can mediate communication between critical effector cells. We hypothesized that transfer of neutrophil-derived microRNAs to pulmonary epithelial cells could alter mucosal gene expression during acute lung injury. Pulmonary-epithelial microRNA profiling during coculture of alveolar epithelial cells with polymorphonuclear neutrophils (PMNs) revealed a selective increase in lung epithelial cell expression of microRNA-223 (miR-223). Analysis of PMN-derived supernatants showed activation-dependent release of miR-223 and subsequent transfer to alveolar epithelial cells during coculture in vitro or after ventilator-induced acute lung injury in mice. Genetic studies indicated that miR-223 deficiency was associated with severe lung inflammation, whereas pulmonary overexpression of miR-223 in mice resulted in protection during acute lung injury induced by mechanical ventilation or by infection with Staphylococcus aureus Studies of putative miR-223 gene targets implicated repression of poly(adenosine diphosphate-ribose) polymerase-1 (PARP-1) in the miR-223-dependent attenuation of lung inflammation. Together, these findings suggest that intercellular transfer of miR-223 from neutrophils to pulmonary epithelial cells may dampen acute lung injury through repression of PARP-1.
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Affiliation(s)
- Viola Neudecker
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA. .,Department of Anesthesiology, University Hospital, Ludwig-Maximilian University of Munich, 81377 Munich, Germany
| | - Kelley S Brodsky
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA
| | - Eric T Clambey
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA
| | - Eric P Schmidt
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Program in Translational Lung Research, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Thomas A Packard
- Department of Immunology and Microbiology, University of Colorado Denver School of Medicine and National Jewish Health, Denver, CO 80206, USA
| | - Bennett Davenport
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA
| | - Theodore J Standiford
- Division of Pulmonary and Critical Care Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Tingting Weng
- Department of Biochemistry and Molecular Biology, University of Texas-Houston Medical School, Houston, TX 77030, USA
| | - Ashley A Fletcher
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Lea Barthel
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA
| | - Joanne C Masterson
- Section of Pediatric Gastroenterology, Hepatology and Nutrition, Gastrointestinal Eosinophilic Diseases Program, Department of Pediatrics, Digestive Health Institute, Children's Hospital Colorado; Mucosal Inflammation Program, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Glenn T Furuta
- Section of Pediatric Gastroenterology, Hepatology and Nutrition, Gastrointestinal Eosinophilic Diseases Program, Department of Pediatrics, Digestive Health Institute, Children's Hospital Colorado; Mucosal Inflammation Program, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Chunyan Cai
- Department of Internal Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Michael R Blackburn
- Department of Biochemistry and Molecular Biology, University of Texas-Houston Medical School, Houston, TX 77030, USA
| | - Adit A Ginde
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Michael W Graner
- Department of Neurosurgery, University of Colorado Denver, Aurora, CO 80045, USA
| | - William J Janssen
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Department of Medicine, National Jewish Health, Denver, CO 80206, USA
| | - Rachel L Zemans
- Department of Medicine, National Jewish Health, Denver, CO 80206, USA
| | - Christopher M Evans
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Ellen L Burnham
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Dirk Homann
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA
| | - Marc Moss
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Simone Kreth
- Department of Anesthesiology, University Hospital, Ludwig-Maximilian University of Munich, 81377 Munich, Germany
| | - Kai Zacharowski
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, 60590 Frankfurt am Main, Germany
| | - Peter M Henson
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Department of Immunology and Microbiology, University of Colorado Denver School of Medicine and National Jewish Health, Denver, CO 80206, USA
| | - Holger K Eltzschig
- Organ Protection Program, Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA.,Department of Anesthesiology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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34
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Wesolowska-Andersen A, Everman JL, Davidson R, Rios C, Herrin R, Eng C, Janssen WJ, Liu AH, Oh SS, Kumar R, Fingerlin TE, Rodriguez-Santana J, Burchard EG, Seibold MA. Correction to: Dual RNA-seq reveals viral infections in asthmatic children without respiratory illness which are associated with changes in the airway transcriptome. Genome Biol 2018; 19:49. [PMID: 29636099 PMCID: PMC5891998 DOI: 10.1186/s13059-018-1423-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In our recent article [1], it has come to our attention that the sample labels are not consistent between Table 1, the data labels deposited in the Sequence Read Archive, and Additional file 1: Table S2. We are therefore providing an updated Additional file 1: Table S2 so identical samples now have the same label.
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Affiliation(s)
| | - Jamie L Everman
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Rebecca Davidson
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Cydney Rios
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Rachelle Herrin
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Celeste Eng
- Department of Medicine, University of California, San Francisco, CA, USA
| | | | - Andrew H Liu
- Department of Pediatrics, National Jewish Health, 1400 Jackson St, Denver, CO, 80206, USA.,Children's Hospital Colorado and University of Colorado School of Medicine, Aurora, CO, USA
| | - Sam S Oh
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Rajesh Kumar
- Department of Pediatrics, The Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Tasha E Fingerlin
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA.,Department of Biomedical Research, National Jewish Health, Denver, CO, USA
| | | | - Esteban G Burchard
- Department of Medicine, University of California, San Francisco, CA, USA.,Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA, USA
| | - Max A Seibold
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA. .,Department of Pediatrics, National Jewish Health, 1400 Jackson St, Denver, CO, 80206, USA. .,Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA.
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35
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McCubbrey AL, Barthel L, Mohning MP, Redente EF, Mould KJ, Thomas SM, Leach SM, Danhorn T, Gibbings SL, Jakubzick CV, Henson PM, Janssen WJ. Deletion of c-FLIP from CD11b hi Macrophages Prevents Development of Bleomycin-induced Lung Fibrosis. Am J Respir Cell Mol Biol 2018; 58:66-78. [PMID: 28850249 DOI: 10.1165/rcmb.2017-0154oc] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Idiopathic pulmonary fibrosis is a progressive lung disease with complex pathophysiology and fatal prognosis. Macrophages (MΦ) contribute to the development of lung fibrosis; however, the underlying mechanisms and specific MΦ subsets involved remain unclear. During lung injury, two subsets of lung MΦ coexist: Siglec-Fhi resident alveolar MΦ and a mixed population of CD11bhi MΦ that primarily mature from immigrating monocytes. Using a novel inducible transgenic system driven by a fragment of the human CD68 promoter, we targeted deletion of the antiapoptotic protein cellular FADD-like IL-1β-converting enzyme-inhibitory protein (c-FLIP) to CD11bhi MΦ. Upon loss of c-FLIP, CD11bhi MΦ became susceptible to cell death. Using this system, we were able to show that eliminating CD11bhi MΦ present 7-14 days after bleomycin injury was sufficient to protect mice from fibrosis. RNA-seq analysis of lung MΦ present during this time showed that CD11bhi MΦ, but not Siglec-Fhi MΦ, expressed high levels of profibrotic chemokines and growth factors. Human MΦ from patients with idiopathic pulmonary fibrosis expressed many of the same profibrotic chemokines identified in murine CD11bhi MΦ. Elimination of monocyte-derived MΦ may help in the treatment of fibrosis. We identify c-FLIP and the associated extrinsic cell death program as a potential pathway through which these profibrotic MΦ may be pharmacologically targeted.
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Affiliation(s)
- Alexandra L McCubbrey
- 1 Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of Colorado Denver School of Medicine, Aurora, Colorado.,2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and
| | - Lea Barthel
- 2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and
| | - Michael P Mohning
- 1 Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of Colorado Denver School of Medicine, Aurora, Colorado.,2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and
| | - Elizabeth F Redente
- 1 Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of Colorado Denver School of Medicine, Aurora, Colorado.,3 Program in Cell Biology, Department of Pediatrics, National Jewish Health, Denver, Colorado.,4 Department of Research, Veterans Affairs Eastern Colorado Health Care System, Denver, Colorado
| | - Kara J Mould
- 1 Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of Colorado Denver School of Medicine, Aurora, Colorado
| | - Stacey M Thomas
- 2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and
| | - Sonia M Leach
- 5 Center for Genes, Environment, and Health, and.,6 Department of Biomedical Research, National Jewish Health, Denver, Colorado; and
| | - Thomas Danhorn
- 5 Center for Genes, Environment, and Health, and.,6 Department of Biomedical Research, National Jewish Health, Denver, Colorado; and
| | - Sophie L Gibbings
- 3 Program in Cell Biology, Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Claudia V Jakubzick
- 3 Program in Cell Biology, Department of Pediatrics, National Jewish Health, Denver, Colorado.,7 Integrated Department of Immunology, National Jewish Health and University of Colorado Denver Anshutz Campus, Denver, Colorado
| | - Peter M Henson
- 3 Program in Cell Biology, Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - William J Janssen
- 1 Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of Colorado Denver School of Medicine, Aurora, Colorado.,2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, and
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36
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McCubbrey AL, Janssen WJ. Modulation of Myeloid Cell Function Using Conditional and Inducible Transgenic Approaches. Methods Mol Biol 2018; 1809:145-168. [PMID: 29987790 DOI: 10.1007/978-1-4939-8570-8_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Transgenic mice have emerged as a central tool in the study of lung myeloid cells during homeostasis and disease. The use of Cre/Lox site-specific recombination allows for conditional deletion of a gene of interest in a spatially controlled manner. The basic Cre/Lox system can be further refined to include an inducible trigger, enabling conditional deletion of a gene of interest in a spatially and temporally controlled manner. Here we provide an overview of commercially available conditional and inducible conditional mouse strains that target lung myeloid cells and describe the appropriate breeding schemes and controls for transgenic animal systems that can be used to modulate myeloid cell function.
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Affiliation(s)
- Alexandra L McCubbrey
- Department of Medicine, National Jewish Health, Denver, CO, USA.
- Division of Critical Care Medicine and Pulmonary Sciences, Department of Medicine, University of Colorado, Denver, CO, USA.
| | - William J Janssen
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, CO, USA
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado Denver, Aurora, CO, USA
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37
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McCubbrey AL, Allison KC, Lee-Sherick AB, Jakubzick CV, Janssen WJ. Promoter Specificity and Efficacy in Conditional and Inducible Transgenic Targeting of Lung Macrophages. Front Immunol 2017; 8:1618. [PMID: 29225599 PMCID: PMC5705560 DOI: 10.3389/fimmu.2017.01618] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 11/08/2017] [Indexed: 12/13/2022] Open
Abstract
Conditional and inducible Cre-loxP systems are used to target gene deletion to specific cell lineages and tissues through promoter-restricted expression of the bacterial DNA recombinase, Cre. Although Cre-loxP systems are widely used to target gene deletion in lung macrophages, limited data are published on the specificity and efficiency of “macrophage targeting” Cre lines. Using R26-stopfl/fl-TdTomato and tetOn-GFP reporter lines, we assessed the specificity and efficiency of four commercially available Cre driver lines that are often considered “macrophage specific.” We evaluated two conditional (Csf1r-Cre and LysM-Cre) and two inducible [CX3CR1-estrogen receptor-Cre (ERCre) and CD68-rtTA] lines. We assessed Cre activation in six resident lung myeloid populations, as well as activation in lung leukocytes, lung epithelial and endothelial cells, peripheral blood leukocytes, and tissue macrophages of the spleen, bone marrow, and peritoneal cavity. Although Csf1r-Cre and LysM-Cre target resident alveolar macrophages (ResAM) and interstitial macrophages (IM) with high efficiency, neither line is specific for macrophages. Csf1r-Cre targets all leukocyte populations, while LysM-Cre targets dendritic cell, neutrophils, monocytes, and a quarter of lung epithelial cells. CX3CR1-ERCre and CD68-rtTA both target IM, but do not target ResAM. Further, although neither line is specific for macrophages, a pulse-wait administration of tamoxifen or doxycycline can be used to significantly improve IM specificity in these inducible lines. In summary, while Cre-loxP remains a powerful tool to study macrophage function, numerous pitfalls exist. Herein, we document strengths and weaknesses of Csf1r-Cre, LysM-Cre, CX3CR1-ERCre, and CD68-rtTA systems for targeting specific macrophage populations in the lungs and provide data that will aid investigators in selecting the proper strain.
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Affiliation(s)
- Alexandra L McCubbrey
- Department of Medicine, National Jewish Health, Denver, CO, United States.,Division of Critical Care Medicine and Pulmonary Sciences, University of Colorado Denver, Denver, CO, United States
| | - Kristen C Allison
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Alisa B Lee-Sherick
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | | | - William J Janssen
- Department of Medicine, National Jewish Health, Denver, CO, United States.,Division of Critical Care Medicine and Pulmonary Sciences, University of Colorado Denver, Denver, CO, United States
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38
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Mohning MP, Thomas SM, Barthel L, Mould KJ, McCubbrey AL, Frasch SC, Bratton DL, Henson PM, Janssen WJ. Phagocytosis of microparticles by alveolar macrophages during acute lung injury requires MerTK. Am J Physiol Lung Cell Mol Physiol 2017; 314:L69-L82. [PMID: 28935638 DOI: 10.1152/ajplung.00058.2017] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Microparticles are a newly recognized class of mediators in the pathophysiology of lung inflammation and injury, but little is known about the factors that regulate their accumulation and clearance. The primary objective of our study was to determine whether alveolar macrophages engulf microparticles and to elucidate the mechanisms by which this occurs. Alveolar microparticles were quantified in bronchoalveolar fluid of mice with lung injury induced by LPS and hydrochloric acid. Microparticle numbers were greatest at the peak of inflammation and declined as inflammation resolved. Isolated, fluorescently labeled particles were placed in culture with macrophages to evaluate ingestion in the presence of endocytosis inhibitors. Ingestion was blocked with cytochalasin D and wortmannin, consistent with a phagocytic process. In separate experiments, mice were treated intratracheally with labeled microparticles, and their uptake was assessed though microscopy and flow cytometry. Resident alveolar macrophages, not recruited macrophages, were the primary cell-ingesting microparticles in the alveolus during lung injury. In vitro, microparticles promoted inflammatory signaling in LPS primed epithelial cells, signifying the importance of microparticle clearance in resolving lung injury. Microparticles were found to have phosphatidylserine exposed on their surfaces. Accordingly, we measured expression of phosphatidylserine receptors on macrophages and found high expression of MerTK and Axl in the resident macrophage population. Endocytosis of microparticles was markedly reduced in MerTK-deficient macrophages in vitro and in vivo. In conclusion, microparticles are released during acute lung injury and peak in number at the height of inflammation. Resident alveolar macrophages efficiently clear these microparticles through MerTK-mediated phagocytosis.
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Affiliation(s)
- Michael P Mohning
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health , Denver, Colorado.,Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Colorado-Anschutz Medical Campus , Aurora, Colorado
| | - Stacey M Thomas
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health , Denver, Colorado
| | - Lea Barthel
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health , Denver, Colorado
| | - Kara J Mould
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Colorado-Anschutz Medical Campus , Aurora, Colorado
| | - Alexandria L McCubbrey
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health , Denver, Colorado.,Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Colorado-Anschutz Medical Campus , Aurora, Colorado
| | | | - Donna L Bratton
- Department of Pediatrics, National Jewish Health , Denver, Colorado
| | - Peter M Henson
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Colorado-Anschutz Medical Campus , Aurora, Colorado.,Department of Pediatrics, National Jewish Health , Denver, Colorado
| | - William J Janssen
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health , Denver, Colorado.,Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Colorado-Anschutz Medical Campus , Aurora, Colorado
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39
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Mould KJ, Barthel L, Mohning MP, Thomas SM, McCubbrey AL, Danhorn T, Leach SM, Fingerlin TE, O'Connor BP, Reisz JA, D'Alessandro A, Bratton DL, Jakubzick CV, Janssen WJ. Cell Origin Dictates Programming of Resident versus Recruited Macrophages during Acute Lung Injury. Am J Respir Cell Mol Biol 2017; 57:294-306. [PMID: 28421818 DOI: 10.1165/rcmb.2017-0061oc] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Two populations of alveolar macrophages (AMs) coexist in the inflamed lung: resident AMs that arise during embryogenesis, and recruited AMs that originate postnatally from circulating monocytes. The objective of this study was to determine whether origin or environment dictates the transcriptional, metabolic, and functional programming of these two ontologically distinct populations over the time course of acute inflammation. RNA sequencing demonstrated marked transcriptional differences between resident and recruited AMs affecting three main areas: proliferation, inflammatory signaling, and metabolism. Functional assays and metabolomic studies confirmed these differences and demonstrated that resident AMs proliferate locally and are governed by increased tricarboxylic acid cycle and amino acid metabolism. Conversely, recruited AMs produce inflammatory cytokines in association with increased glycolytic and arginine metabolism. Collectively, the data show that even though they coexist in the same environment, inflammatory macrophage subsets have distinct immunometabolic programs and perform specialized functions during inflammation that are associated with their cellular origin.
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Affiliation(s)
- Kara J Mould
- 1 Division of Pulmonary Diseases and Critical Care Medicine, and
| | - Lea Barthel
- 2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine
| | - Michael P Mohning
- 1 Division of Pulmonary Diseases and Critical Care Medicine, and.,2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine
| | - Stacey M Thomas
- 2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine
| | - Alexandra L McCubbrey
- 1 Division of Pulmonary Diseases and Critical Care Medicine, and.,2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine
| | - Thomas Danhorn
- 3 Center for Genes, Environment, and Health.,4 Department of Biomedical Research, and
| | - Sonia M Leach
- 3 Center for Genes, Environment, and Health.,4 Department of Biomedical Research, and
| | - Tasha E Fingerlin
- 3 Center for Genes, Environment, and Health.,4 Department of Biomedical Research, and
| | - Brian P O'Connor
- 3 Center for Genes, Environment, and Health.,4 Department of Biomedical Research, and.,5 Department of Pediatrics, National Jewish Health, Denver, Colorado; and
| | - Julie A Reisz
- 6 Department of Biochemistry and Molecular Genetics, University of Colorado-Anschutz Medical Campus, Aurora, Colorado
| | - Angelo D'Alessandro
- 6 Department of Biochemistry and Molecular Genetics, University of Colorado-Anschutz Medical Campus, Aurora, Colorado
| | - Donna L Bratton
- 5 Department of Pediatrics, National Jewish Health, Denver, Colorado; and
| | | | - William J Janssen
- 1 Division of Pulmonary Diseases and Critical Care Medicine, and.,2 Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine
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40
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Gibbings SL, Thomas SM, Atif SM, McCubbrey AL, Desch AN, Danhorn T, Leach SM, Bratton DL, Henson PM, Janssen WJ, Jakubzick CV. Three Unique Interstitial Macrophages in the Murine Lung at Steady State. Am J Respir Cell Mol Biol 2017; 57:66-76. [PMID: 28257233 DOI: 10.1165/rcmb.2016-0361oc] [Citation(s) in RCA: 290] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The current paradigm in macrophage biology is that some tissues mainly contain macrophages from embryonic origin, such as microglia in the brain, whereas other tissues contain postnatal-derived macrophages, such as the gut. However, in the lung and in other organs, such as the skin, there are both embryonic and postnatal-derived macrophages. In this study, we demonstrate in the steady-state lung that the mononuclear phagocyte system is comprised of three newly identified interstitial macrophages (IMs), alveolar macrophages, dendritic cells, and few extravascular monocytes. We focused on similarities and differences between the three IM subtypes, specifically, their phenotype, location, transcriptional signature, phagocytic capacity, turnover, and lack of survival dependency on fractalkine receptor, CX3CR1. Pulmonary IMs were located in the bronchial interstitium but not the alveolar interstitium. At the transcriptional level, all three IMs displayed a macrophage signature and phenotype. All IMs expressed MER proto-oncogene, tyrosine kinase, CD64, CD11b, and CX3CR1, and were further distinguished by differences in cell surface protein expression of CD206, Lyve-1, CD11c, CCR2, and MHC class II, along with the absence of Ly6C, Ly6G, and Siglec F. Most intriguingly, in addition to the lung, similar phenotypic populations of IMs were observed in other nonlymphoid organs, perhaps highlighting conserved functions throughout the body. These findings promote future research to track four distinct pulmonary macrophages and decipher the division of labor that exists between them.
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Affiliation(s)
- Sophie L Gibbings
- 1 Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Stacey M Thomas
- 1 Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Shaikh M Atif
- 1 Department of Pediatrics, National Jewish Health, Denver, Colorado
| | | | - A Nicole Desch
- 3 Integrated Department of Immunology, National Jewish Health and University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - Thomas Danhorn
- 4 Integrated Center for Genes, Environment and Health, National Jewish Health, Denver, Colorado; and
| | - Sonia M Leach
- 4 Integrated Center for Genes, Environment and Health, National Jewish Health, Denver, Colorado; and
| | - Donna L Bratton
- 3 Integrated Department of Immunology, National Jewish Health and University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - Peter M Henson
- 1 Department of Pediatrics, National Jewish Health, Denver, Colorado.,3 Integrated Department of Immunology, National Jewish Health and University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - William J Janssen
- 2 Department of Medicine, National Jewish Health, Denver, Colorado.,5 Division of Pulmonary Sciences and Critical Care, University of Colorado Denver, Denver, Colorado
| | - Claudia V Jakubzick
- 1 Department of Pediatrics, National Jewish Health, Denver, Colorado.,3 Integrated Department of Immunology, National Jewish Health and University of Colorado Denver Anschutz Campus, Denver, Colorado
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41
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Pugliese SC, Kumar S, Janssen WJ, Graham BB, Frid MG, Riddle SR, El Kasmi KC, Stenmark KR. A Time- and Compartment-Specific Activation of Lung Macrophages in Hypoxic Pulmonary Hypertension. J Immunol 2017; 198:4802-4812. [PMID: 28500078 DOI: 10.4049/jimmunol.1601692] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 04/12/2017] [Indexed: 01/10/2023]
Abstract
Studies in various animal models suggest an important role for pulmonary macrophages in the pathogenesis of pulmonary hypertension (PH). Yet, the molecular mechanisms characterizing the functional macrophage phenotype relative to time and pulmonary localization and compartmentalization remain largely unknown. In this study, we used a hypoxic murine model of PH in combination with FACS to quantify and isolate lung macrophages from two compartments over time and characterize their programing via RNA sequencing approaches. In response to hypoxia, we found an early increase in macrophage number that was restricted to the interstitial/perivascular compartment, without recruitment of macrophages to the alveolar compartment or changes in the number of resident alveolar macrophages. Principal component analysis demonstrated significant differences in overall gene expression between alveolar and interstitial macrophages (IMs) at baseline and after 4 and 14 d hypoxic exposure. Alveolar macrophages at both day 4 and 14 and IMs at day 4 shared a conserved hypoxia program characterized by mitochondrial dysfunction, proinflammatory gene activation, and mTORC1 signaling, whereas IMs at day 14 demonstrated a unique anti-inflammatory/proreparative programming state. We conclude that the pathogenesis of vascular remodeling in hypoxic PH involves an early compartment-independent activation of lung macrophages toward a conserved hypoxia program, with the development of compartment-specific programs later in the course of the disease. Thus, harnessing time- and compartment-specific differences in lung macrophage polarization needs to be considered in the therapeutic targeting of macrophages in hypoxic PH and potentially other inflammatory lung diseases.
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Affiliation(s)
- Steven C Pugliese
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Aurora, CO 80045
| | - Sushil Kumar
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - William J Janssen
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Aurora, CO 80045.,Department of Medicine, National Jewish Health, Denver, CO 80206
| | - Brian B Graham
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Aurora, CO 80045
| | - Maria G Frid
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Suzette R Riddle
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Karim C El Kasmi
- Division of Gastroenterology, Hepatology, and Nutrition, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Kurt R Stenmark
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045;
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42
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Gibbings SL, Thomas SM, Frasch CS, Atif SM, McCubbrey AL, Desch AN, Danhorn T, Leach SM, Bratton DL, Henson PM, Janssen WJ, Jakubzick CV. Three unique interstitial macrophages in the murine lung at steady state. The Journal of Immunology 2017. [DOI: 10.4049/jimmunol.198.supp.209.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Rationale
The current paradigm in macrophage biology is that some tissues mainly contain macrophages from embryonic origin such as microglia in the brain, while other tissues contain postnatal-derived macrophages, such as the gut. However, in the lung and in other organs such as the skin, there are both embryonic and postnatal-derived macrophages.
Objectives
In this study, we demonstrate in the steady-state lung that the mononuclear phagocyte system is comprised of three newly identified interstitial macrophages (IMs), alveolar macrophages (AMs), dendritic cells and few extravascular monocytes.
Methods
We focused on similarities and differences between the three IM subtypes, specifically, their phenotype, location, transcriptional signature, phagocytic capacity, turnover and lack of survival dependency on CX3CR1.
Measurements and Main Results
Pulmonary IMs were located in the bronchial interstitium but not the alveolar interstitium. At the transcriptional level, all three IMs displayed a macrophage signature. All IMs expressed MerTK+CD64+ CD11b+ CX CR1+ and were furthermore distinguished by differences in cell surface protein expression of CD206, Lyve-1, CD11c, CCR2 and MHCII, along with the absence of Ly6C, Ly6G, and Siglec F. Ex vivo analysis revealed that all three IMs were highly phagocytic compared to AMs. Finally, similar phenotypic populations of IMs were present in other non-lymphoid organs, suggesting that these IMs may not be unique to the lung.
Conclusions
These findings promote future research to track four distinct pulmonary macrophages and decipher the division of labor that exists between them.
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43
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Yunt ZX, Chung JH, Hobbs S, Fernandez-Perez ER, Olson AL, Huie TJ, Keith RC, Janssen WJ, Goldstein BL, Lynch DA, Brown KK, Swigris JJ, Solomon JJ. High resolution computed tomography pattern of usual interstitial pneumonia in rheumatoid arthritis-associated interstitial lung disease: Relationship to survival. Respir Med 2017; 126:100-104. [PMID: 28427540 DOI: 10.1016/j.rmed.2017.03.027] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/24/2017] [Accepted: 03/28/2017] [Indexed: 01/27/2023]
Abstract
PURPOSE Interstitial lung disease is a common extra-articular manifestation of rheumatoid arthritis (RA-ILD) and is associated with significant morbidity and mortality. However, limited data exist regarding predictors of mortality. We sought to examine the prognostic value of the high-resolution computed tomography (HRCT) patterns in patients with RA-ILD. MATERIALS AND METHODS RA-ILD patients with HRCT patterns of usual interstitial pneumonia (UIP) or nonspecific interstitial pneumonia (NSIP) were identified among a longitudinal cohort of individuals evaluated at National Jewish Health. A total of 158 subjects were included in the study. For each subject, the earliest available HRCT was reviewed independently by two expert thoracic radiologists blinded to clinical data. HRCT patterns were classified as demonstrating definite UIP, possible UIP, or NSIP. Kaplan-Meier curves were generated and survival was compared among the three patterns using a log rank test for trend. RESULTS One hundred subjects (63%) had HRCT findings classified as definite UIP, 23 (15%) as possible UIP and 35 (22%) as NSIP. No difference in survival was seen between subjects with definite UIP versus those with possible UIP. The combined group of subjects with either definite- or possible UIP had significantly worse survival than those with NSIP (log-rank p = 0.03). CONCLUSIONS In patients with RA-ILD, patients with either definite UIP or possible UIP have equally poor survival when compared to those with an NSIP pattern.
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Affiliation(s)
- Zulma X Yunt
- National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - Jonathan H Chung
- University of Chicago, 5841 South Maryland Ave, Chicago, IL 60637, USA
| | - Stephen Hobbs
- University of Kentucky, 740 South Limestone St, Lexington, KY 40536, USA
| | | | - Amy L Olson
- National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - Tristan J Huie
- National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - Rebecca C Keith
- National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | | | | | - David A Lynch
- National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
| | - Kevin K Brown
- National Jewish Health, 1400 Jackson St, Denver, CO 80206, USA
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44
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Janssen WJ, Nozik-Grayck E. Power of Place: Intravascular Superoxide Dismutase for Prevention of Acute Respiratory Distress Syndrome. Am J Respir Cell Mol Biol 2017; 56:147-149. [PMID: 28145771 PMCID: PMC5359654 DOI: 10.1165/rcmb.2016-0407ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- William J Janssen
- 1 Department of Medicine National Jewish Health Denver, Colorado and
| | - Eva Nozik-Grayck
- 2 Cardiovascular Pulmonary Research Laboratories University of Colorado Denver Aurora, Colorado
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45
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Wesolowska-Andersen A, Everman JL, Davidson R, Rios C, Herrin R, Eng C, Janssen WJ, Liu AH, Oh SS, Kumar R, Fingerlin TE, Rodriguez-Santana J, Burchard EG, Seibold MA. Dual RNA-seq reveals viral infections in asthmatic children without respiratory illness which are associated with changes in the airway transcriptome. Genome Biol 2017; 18:12. [PMID: 28103897 PMCID: PMC5244706 DOI: 10.1186/s13059-016-1140-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 12/16/2016] [Indexed: 12/01/2022] Open
Abstract
Background Respiratory illness caused by viral infection is associated with the development and exacerbation of childhood asthma. Little is known about the effects of respiratory viral infections in the absence of illness. Using quantitative PCR (qPCR) for common respiratory viruses and for two genes known to be highly upregulated in viral infections (CCL8/CXCL11), we screened 92 asthmatic and 69 healthy children without illness for respiratory virus infections. Results We found 21 viral qPCR-positive and 2 suspected virus-infected subjects with high expression of CCL8/CXCL11. We applied a dual RNA-seq workflow to these subjects, together with 25 viral qPCR-negative subjects, to compare qPCR with sequencing-based virus detection and to generate the airway transcriptome for analysis. RNA-seq virus detection achieved 86% sensitivity when compared to qPCR-based screening. We detected additional respiratory viruses in the two CCL8/CXCL11-high subjects and in two of the qPCR-negative subjects. Viral read counts varied widely and were used to stratify subjects into Virus-High and Virus-Low groups. Examination of the host airway transcriptome found that the Virus-High group was characterized by immune cell airway infiltration, downregulation of cilia genes, and dampening of type 2 inflammation. Even the Virus-Low group was differentiated from the No-Virus group by 100 genes, some involved in eIF2 signaling. Conclusions Respiratory virus infection without illness is not innocuous but may determine the airway function of these subjects by driving immune cell airway infiltration, cellular remodeling, and alteration of asthmogenic gene expression. Electronic supplementary material The online version of this article (doi:10.1186/s13059-016-1140-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Jamie L Everman
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Rebecca Davidson
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Cydney Rios
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Rachelle Herrin
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Celeste Eng
- Department of Medicine, University of California, San Francisco, CA, USA
| | | | - Andrew H Liu
- Department of Pediatrics, National Jewish Health, 1400 Jackson St, Denver, CO, 80206, USA.,Children's Hospital Colorado and University of Colorado School of Medicine, Aurora, CO, USA
| | - Sam S Oh
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Rajesh Kumar
- Department of Pediatrics, The Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Tasha E Fingerlin
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA.,Department of Biomedical Research, National Jewish Health, Denver, CO, USA
| | | | - Esteban G Burchard
- Department of Medicine, University of California, San Francisco, CA, USA.,Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, CA, USA
| | - Max A Seibold
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA. .,Department of Pediatrics, National Jewish Health, 1400 Jackson St, Denver, CO, 80206, USA. .,Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado School of Medicine, Aurora, CO, USA.
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46
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Mathai SK, Josephson SA, Badlam J, Saint S, Janssen WJ. Scratching Below the Surface. N Engl J Med 2016; 375:2188-2193. [PMID: 27959764 DOI: 10.1056/nejmcps1603154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Susan K Mathai
- From the Department of Medicine, University of Colorado School of Medicine, Aurora (S.K.M., J.B., W.J.J.), and the Department of Medicine, National Jewish Health, Denver (W.J.J.) - both in Colorado; the Department of Neurology, University of California, San Francisco, San Francisco (S.A.J.); and the Department of Internal Medicine, University of Michigan Medical School, and the Department of Veterans Affairs Health Services Research and Development Center of Excellence - both in Ann Arbor (S.S.)
| | - S Andrew Josephson
- From the Department of Medicine, University of Colorado School of Medicine, Aurora (S.K.M., J.B., W.J.J.), and the Department of Medicine, National Jewish Health, Denver (W.J.J.) - both in Colorado; the Department of Neurology, University of California, San Francisco, San Francisco (S.A.J.); and the Department of Internal Medicine, University of Michigan Medical School, and the Department of Veterans Affairs Health Services Research and Development Center of Excellence - both in Ann Arbor (S.S.)
| | - Jessica Badlam
- From the Department of Medicine, University of Colorado School of Medicine, Aurora (S.K.M., J.B., W.J.J.), and the Department of Medicine, National Jewish Health, Denver (W.J.J.) - both in Colorado; the Department of Neurology, University of California, San Francisco, San Francisco (S.A.J.); and the Department of Internal Medicine, University of Michigan Medical School, and the Department of Veterans Affairs Health Services Research and Development Center of Excellence - both in Ann Arbor (S.S.)
| | - Sanjay Saint
- From the Department of Medicine, University of Colorado School of Medicine, Aurora (S.K.M., J.B., W.J.J.), and the Department of Medicine, National Jewish Health, Denver (W.J.J.) - both in Colorado; the Department of Neurology, University of California, San Francisco, San Francisco (S.A.J.); and the Department of Internal Medicine, University of Michigan Medical School, and the Department of Veterans Affairs Health Services Research and Development Center of Excellence - both in Ann Arbor (S.S.)
| | - William J Janssen
- From the Department of Medicine, University of Colorado School of Medicine, Aurora (S.K.M., J.B., W.J.J.), and the Department of Medicine, National Jewish Health, Denver (W.J.J.) - both in Colorado; the Department of Neurology, University of California, San Francisco, San Francisco (S.A.J.); and the Department of Internal Medicine, University of Michigan Medical School, and the Department of Veterans Affairs Health Services Research and Development Center of Excellence - both in Ann Arbor (S.S.)
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47
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Janssen WJ, Stefanski AL, Bochner BS, Evans CM. Control of lung defence by mucins and macrophages: ancient defence mechanisms with modern functions. Eur Respir J 2016; 48:1201-1214. [PMID: 27587549 DOI: 10.1183/13993003.00120-2015] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 06/12/2016] [Indexed: 12/14/2022]
Abstract
Owing to the need to balance the requirement for efficient respiration in the face of tremendous levels of exposure to endogenous and environmental challenges, it is crucial for the lungs to maintain a sustainable defence that minimises damage caused by this exposure and the detrimental effects of inflammation to delicate gas exchange surfaces. Accordingly, epithelial and macrophage defences constitute essential first and second lines of protection that prevent the accumulation of potentially harmful agents in the lungs, and under homeostatic conditions do so effectively without inducing inflammation. Though epithelial and macrophage-mediated defences are seemingly distinct, recent data show that they are linked through their shared reliance on airway mucins, in particular the polymeric mucin MUC5B. This review highlights our understanding of novel mechanisms that link mucus and macrophage defences. We discuss the roles of phagocytosis and the effects of factors contained within mucus on phagocytosis, as well as newly identified roles for mucin glycoproteins in the direct regulation of leukocyte functions. The emergence of this nascent field of glycoimmunobiology sets forth a new paradigm for considering how homeostasis is maintained under healthy conditions and how it is restored in disease.
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Affiliation(s)
- William J Janssen
- Dept of Medicine, National Jewish Health, Denver, CO, USA Dept of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | | | - Bruce S Bochner
- Dept of Medicine, Division of Allergy-Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Christopher M Evans
- Dept of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
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48
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McCubbrey AL, Barthel L, Mould KJ, Mohning MP, Redente EF, Janssen WJ. Selective and inducible targeting of CD11b+ mononuclear phagocytes in the murine lung with hCD68-rtTA transgenic systems. Am J Physiol Lung Cell Mol Physiol 2016; 311:L87-L100. [PMID: 27190063 PMCID: PMC4967193 DOI: 10.1152/ajplung.00141.2016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 05/17/2016] [Indexed: 01/03/2023] Open
Abstract
During homeostasis two distinct macrophage (Mø) populations inhabit the lungs: tissue Mø (often called interstitial Mø) and resident alveolar Mø (resAMø). During acute lung inflammation, monocytes from the circulation migrate to areas of injury where they mature into a third Mø population: recruited Mø. Resident AMø uniquely express low levels of CD11b and high levels of CD11c. In comparison, recruited Mø and tissue Mø express high levels of CD11b and low levels of CD11c. It is likely that these three Mø subpopulations play distinct roles in injury and disease states; however, tools with which to individually target or track these populations are lacking. Here we demonstrate the utility of an hCD68-rtTA transgenic system for specific, robust, and inducible targeting of CD11b(+) recruited Mø and tissue Mø in the murine lung with negligible activation in resAMø. Using hCD68rtTA-GFP reporter mice, we show both during homeostasis and inflammation that administration of doxycycline induces tet-On reporter expression in recruited Mø and tissue Mø but not in resident AMø. We further demonstrate how hCD68-rtTA can be effectively combined with tet-On Cre to target these same recMø and tissue Mø. Accordingly, the hCD68-rtTA system is a powerful new tool that can be used for lineage tracing, fate mapping, and gene deletion in a variety of murine models, thereby enabling sophisticated investigation of the unique role of these CD11b(+) Mø during lung heath and disease.
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Affiliation(s)
| | - Lea Barthel
- Department of Medicine, National Jewish Health, Denver, Colorado
| | - Kara J Mould
- Department of Medicine, National Jewish Health, Denver, Colorado; Department of Medicine, University of Colorado Denver, Aurora, Colorado; and
| | - Michael P Mohning
- Department of Medicine, National Jewish Health, Denver, Colorado; Department of Medicine, University of Colorado Denver, Aurora, Colorado; and
| | - Elizabeth F Redente
- Department of Pediatrics, National Jewish Health, Denver, Colorado; Department of Research, Denver Veterans Affairs Medical Center, Denver, Colorado
| | - William J Janssen
- Department of Medicine, National Jewish Health, Denver, Colorado; Department of Medicine, University of Colorado Denver, Aurora, Colorado; and
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49
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Desch AN, Gibbings SL, Goyal R, Kolde R, Bednarek J, Bruno T, Slansky JE, Jacobelli J, Mason R, Ito Y, Messier E, Randolph GJ, Prabagar M, Atif SM, Segura E, Xavier RJ, Bratton DL, Janssen WJ, Henson PM, Jakubzick CV. Flow Cytometric Analysis of Mononuclear Phagocytes in Nondiseased Human Lung and Lung-Draining Lymph Nodes. Am J Respir Crit Care Med 2016; 193:614-26. [PMID: 26551758 PMCID: PMC4824940 DOI: 10.1164/rccm.201507-1376oc] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 11/02/2015] [Indexed: 12/24/2022] Open
Abstract
RATIONALE The pulmonary mononuclear phagocyte system is a critical host defense mechanism composed of macrophages, monocytes, monocyte-derived cells, and dendritic cells. However, our current characterization of these cells is limited because it is derived largely from animal studies and analysis of human mononuclear phagocytes from blood and small tissue resections around tumors. OBJECTIVES Phenotypic and morphologic characterization of mononuclear phagocytes that potentially access inhaled antigens in human lungs. METHODS We acquired and analyzed pulmonary mononuclear phagocytes from fully intact nondiseased human lungs (including the major blood vessels and draining lymph nodes) obtained en bloc from 72 individual donors. Differential labeling of hematopoietic cells via intrabronchial and intravenous administration of antibodies within the same lobe was used to identify extravascular tissue-resident mononuclear phagocytes and exclude cells within the vascular lumen. Multiparameter flow cytometry was used to identify mononuclear phagocyte populations among cells labeled by each route of antibody delivery. MEASUREMENTS AND MAIN RESULTS We performed a phenotypic analysis of pulmonary mononuclear phagocytes isolated from whole nondiseased human lungs and lung-draining lymph nodes. Five pulmonary mononuclear phagocytes were observed, including macrophages, monocyte-derived cells, and dendritic cells that were phenotypically distinct from cell populations found in blood. CONCLUSIONS Different mononuclear phagocytes, particularly dendritic cells, were labeled by intravascular and intrabronchial antibody delivery, countering the notion that tissue and blood mononuclear phagocytes are equivalent systems. Phenotypic descriptions of the mononuclear phagocytes in nondiseased lungs provide a precedent for comparative studies in diseased lungs and potential targets for therapeutics.
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Affiliation(s)
- A. Nicole Desch
- Department of Immunology and Microbiology, University of Colorado Denver Anschutz Campus, Denver, Colorado
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- The Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, Massachusetts
| | | | - Rajni Goyal
- Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Raivo Kolde
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- The Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, Massachusetts
| | - Joe Bednarek
- Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Tullia Bruno
- Department of Immunology and Microbiology, University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - Jill E. Slansky
- Department of Immunology and Microbiology, University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - Jordan Jacobelli
- Department of Immunology and Microbiology, University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - Robert Mason
- Department of Medicine, National Jewish Health and University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - Yoko Ito
- Department of Medicine, National Jewish Health and University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - Elise Messier
- Department of Medicine, National Jewish Health and University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - Gwendalyn J. Randolph
- Department of Pathology and Immunology, Washington University Medical School, St. Louis, Missouri
| | - Miglena Prabagar
- Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Shaikh M. Atif
- Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Elodie Segura
- INSERM U932, Paris, France; and
- Institut Curie, Paris, France
| | - Ramnik J. Xavier
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- The Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, Massachusetts
| | - Donna L. Bratton
- Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - William J. Janssen
- Department of Medicine, National Jewish Health and University of Colorado Denver Anschutz Campus, Denver, Colorado
| | - Peter M. Henson
- Department of Immunology and Microbiology, University of Colorado Denver Anschutz Campus, Denver, Colorado
- Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Claudia V. Jakubzick
- Department of Immunology and Microbiology, University of Colorado Denver Anschutz Campus, Denver, Colorado
- Department of Pediatrics, National Jewish Health, Denver, Colorado
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50
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Kumar R, Mickael C, Chabon J, Gebreab L, Rutebemberwa A, Garcia AR, Koyanagi DE, Sanders L, Gandjeva A, Kearns MT, Barthel L, Janssen WJ, Mauad T, Bandeira A, Schmidt E, Tuder RM, Graham BB. The Causal Role of IL-4 and IL-13 in Schistosoma mansoni Pulmonary Hypertension. Am J Respir Crit Care Med 2016; 192:998-1008. [PMID: 26192556 DOI: 10.1164/rccm.201410-1820oc] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
RATIONALE The etiology of schistosomiasis-associated pulmonary arterial hypertension (PAH), a major cause of PAH worldwide, is poorly understood. Schistosoma mansoni exposure results in prototypical type-2 inflammation. Furthermore, transforming growth factor (TGF)-β signaling is required for experimental pulmonary hypertension (PH) caused by Schistosoma exposure. OBJECTIVES We hypothesized type-2 inflammation driven by IL-4 and IL-13 is necessary for Schistosoma-induced TGF-β-dependent vascular remodeling. METHODS Wild-type, IL-4(-/-), IL-13(-/-), and IL-4(-/-)IL-13(-/-) mice (C57BL6/J background) were intraperitoneally sensitized and intravenously challenged with S. mansoni eggs to induce experimental PH. Right ventricular catheterization was then performed, followed by quantitative analysis of the lung tissue. Lung tissue from patients with schistosomiasis-associated and connective tissue disease-associated PAH was also systematically analyzed. MEASUREMENTS AND MAIN RESULTS Mice with experimental Schistosoma-induced PH had evidence of increased IL-4 and IL-13 signaling. IL-4(-/-)IL-13(-/-) mice, but not single knockout IL-4(-/-) or IL-13(-/-) mice, were protected from Schistosoma-induced PH, with decreased right ventricular pressures, pulmonary vascular remodeling, and right ventricular hypertrophy. IL-4(-/-)IL-13(-/-) mice had less pulmonary vascular phospho-signal transducer and activator of transcription 6 (STAT6) and phospho-Smad2/3 activity, potentially caused by decreased TGF-β activation by macrophages. In vivo treatment with a STAT6 inhibitor and IL-4(-/-)IL-13(-/-) bone marrow transplantation also protected against Schistosoma-PH. Lung tissue from patients with schistosomiasis-associated and connective tissue disease-associated PAH had evidence of type-2 inflammation. CONCLUSIONS Combined IL-4 and IL-13 deficiency is required for protection against TGF-β-induced pulmonary vascular disease after Schistosoma exposure, and targeted inhibition of this pathway is a potential novel therapeutic approach for patients with schistosomiasis-associated PAH.
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Affiliation(s)
- Rahul Kumar
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Claudia Mickael
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Jacob Chabon
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Liya Gebreab
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Alleluiah Rutebemberwa
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Alexandra Rodriguez Garcia
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Daniel E Koyanagi
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Linda Sanders
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Aneta Gandjeva
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Mark T Kearns
- 2 Department of Medicine, National Jewish Health, Denver, Colorado
| | - Lea Barthel
- 2 Department of Medicine, National Jewish Health, Denver, Colorado
| | | | - Thais Mauad
- 3 Department of Pathology, Sao Paulo University Medical School, Sao Paulo, Brazil; and
| | - Angela Bandeira
- 4 Department of Medicine, Memorial S. Jose Hospital, Universidade de Pernambuco, Recife, Brazil
| | - Eric Schmidt
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Rubin M Tuder
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
| | - Brian B Graham
- 1 Program in Translational Lung Research, Department of Medicine, Anschutz Medical Campus, Aurora, Colorado
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