1
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Kang A, Ye G, Afkhami S, Aleithan F, Singh K, Dvorkin-Gheva A, Berg T, Miller MS, Jeyanathan M, Xing Z. LPS-induced lung tissue-resident trained innate immunity provides differential protection against pneumococci and SARS-CoV-2. Cell Rep 2024; 43:114849. [PMID: 39383035 DOI: 10.1016/j.celrep.2024.114849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 06/24/2024] [Accepted: 09/23/2024] [Indexed: 10/11/2024] Open
Abstract
Recent evidence indicates that tissue-resident innate immune memory and trained innate immunity (TII) can be induced centrally in myeloid cells within the bone marrow and locally in tissue-resident macrophages in respiratory mucosal tissues. However, it remains unclear whether acute exposure to airborne microbial components like lipopolysaccharide (LPS) induces lasting innate immune memory in airway macrophages and TII capable of protection against heterologous pathogens. Using a murine model, we demonstrate that acute LPS exposure leads to dynamic changes in the immune phenotype of airway macrophages that persist long after the acute inflammatory response has subsided. The original airway-resident alveolar macrophage pool remains stable in size despite these changes and the earlier transient acute inflammatory responses, including monocytic recruitment in the lung. We further demonstrate that the induction of innate immune memory in airway macrophages is accompanied by TII capable of robust protection against acute pneumococcal infection, whereas it provides minimal protection against acute SARS-CoV-2 infection.
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Affiliation(s)
- Alisha Kang
- McMaster Immunology Research Centre, Department of Medicine, and M. G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Gluke Ye
- McMaster Immunology Research Centre, Department of Medicine, and M. G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Sam Afkhami
- McMaster Immunology Research Centre, Department of Medicine, and M. G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Fatemah Aleithan
- McMaster Immunology Research Centre, Department of Medicine, and M. G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Kanwaldeep Singh
- Department of Oncology, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Anna Dvorkin-Gheva
- McMaster Immunology Research Centre, Department of Medicine, and M. G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Tobias Berg
- Department of Oncology, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Matthew S Miller
- McMaster Immunology Research Centre, Department of Medicine, and M. G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON L8S 4K1, Canada; Department of Biochemistry & Biomedical Sciences, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Mangalakumari Jeyanathan
- McMaster Immunology Research Centre, Department of Medicine, and M. G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON L8S 4K1, Canada.
| | - Zhou Xing
- McMaster Immunology Research Centre, Department of Medicine, and M. G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON L8S 4K1, Canada.
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2
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Wang HP, He J, He JR, Li DD, Huang H, Chen B. Single-cell transcriptome analysis of the mouse lungs during the injury and recovery periods after lipopolysaccharide administration. Inflamm Res 2024:10.1007/s00011-024-01951-z. [PMID: 39377802 DOI: 10.1007/s00011-024-01951-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 09/22/2024] [Accepted: 09/25/2024] [Indexed: 10/09/2024] Open
Abstract
OBJECTIVE This study sought to investigate the cellular and molecular alterations during the injury and recovery periods of ALI and develop effective treatments for ALI. METHODS Pulmonary histology at 1, 3, 6, and 9 days after lipopolysaccharide administration mice were assessed. An unbiased single-cell RNA sequencing was performed in alveoli tissues from injury (day 3) and recovery (day 6) mice after lipopolysaccharide administration. The roles of Fpr2 and Dpp4 in ALI were assessed. RESULTS The most severe lung injury occurred on day 3, followed by recovery entirely on day 9 after lipopolysaccharide administration. The numbers of Il1a+ neutrophils, monocytes/macrophages, and Cd4+ and Cd8+ T cells significantly increased at day 3 after LPS administration; subsequently, the number of Il1a+ neutrophils greatly decreased, the numbers of monocytes/macrophages and Cd4+ and Cd8+ T cells continuously increased, and the number of resident alveolar macrophages significantly increased at day 6. The interactions between monocytes/macrophages and pneumocytes during the injury period were enhanced by the Cxcl10/Dpp4 pair, and inhibiting Dpp4 improved ALI significantly, while inhibiting Fpr2 did not. CONCLUSIONS Our results offer valuable insights into the cellular and molecular mechanisms underlying its progression and identify Dpp4 as an effective therapeutic target for ALI.
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Affiliation(s)
- Hou-Ping Wang
- Department of Anesthesia, The Second Affiliated Hospital of Chongqing Medical University, No. 74 Linjianglu, Yuzhong District, Chongqing, 400010, China
| | - Jian He
- Department of Spine Surgery, Center of Orthopedics, State Key Laboratory of Trauma and Chemical Poisoning, Daping Hospital, Army Medical University, Third Military Medical University), Chongqing, 400042, China
- Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu, 610031, China
| | - Jian-Rong He
- Department of Anesthesia, The Second Affiliated Hospital of Chongqing Medical University, No. 74 Linjianglu, Yuzhong District, Chongqing, 400010, China
| | - Dan-Dan Li
- Department of Anesthesia, The Second Affiliated Hospital of Chongqing Medical University, No. 74 Linjianglu, Yuzhong District, Chongqing, 400010, China
| | - He Huang
- Department of Anesthesia, The Second Affiliated Hospital of Chongqing Medical University, No. 74 Linjianglu, Yuzhong District, Chongqing, 400010, China
| | - Bing Chen
- Department of Anesthesia, The Second Affiliated Hospital of Chongqing Medical University, No. 74 Linjianglu, Yuzhong District, Chongqing, 400010, China.
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3
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Yamashita A, Ito Y, Osada M, Matsuda H, Hosono K, Tsujikawa K, Okamoto H, Amano H. RAMP1 Signaling Mitigates Acute Lung Injury by Distinctively Regulating Alveolar and Monocyte-Derived Macrophages. Int J Mol Sci 2024; 25:10107. [PMID: 39337592 PMCID: PMC11432488 DOI: 10.3390/ijms251810107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2024] [Revised: 09/17/2024] [Accepted: 09/18/2024] [Indexed: 09/30/2024] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a life-threatening lung injury that induces cytokine hypersecretion. Receptor activity-modifying protein (RAMP) 1, a subunit of the calcitonin gene-related peptide (CGRP) receptor, regulates the production of cytokines. This study examined the role of RAMP1 signaling during lipopolysaccharide (LPS)-induced acute lung injury (ALI). LPS administration to wild-type (WT) mice depleted alveolar macrophages (AMs) and recruited monocyte-derived macrophages (MDMs) and neutrophils. RAMP1-deficient (RAMP1-/-) mice exhibited higher lung injury scores, cytokine levels, and cytokine-producing neutrophil infiltration. RAMP1-deficient AMs produced more cytokines in response to LPS than WT AMs. Adoptive transfer of RAMP1-deficient AMs to RAMP1-/- mice increased cytokine levels and neutrophil accumulation compared to the transfer of WT AMs. RAMP1-/- mice had reduced MDM recruitment and lower pro-inflammatory and reparative macrophage profiles. Cultured bone marrow (BM)-derived RAMP1-deficient macrophages stimulated with LPS showed decreased expression of pro-inflammatory and pro-repairing genes. CGRP administration to WT mice reduced cytokine production and neutrophil accumulation. These findings indicate that RAMP1 signaling mitigates LPS-induced ALI by inactivating AMs and promoting inflammatory and repair activities of MDMs. Targeting RAMP1 signaling presents a potential therapeutic approach for the treatment of ARDS.
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Affiliation(s)
- Atsushi Yamashita
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara 252-0373, Japan; (A.Y.); (Y.I.); (K.H.)
- Department of Anesthesiology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan (H.O.)
| | - Yoshiya Ito
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara 252-0373, Japan; (A.Y.); (Y.I.); (K.H.)
- Department of Pharmacology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan
| | - Mayuko Osada
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara 252-0373, Japan; (A.Y.); (Y.I.); (K.H.)
- Department of Emergency and Critical Care Medicine, Kitasato University School of Medicine, Sagamihara 252-0374, Japan
| | - Hiromi Matsuda
- Department of Anesthesiology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan (H.O.)
| | - Kanako Hosono
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara 252-0373, Japan; (A.Y.); (Y.I.); (K.H.)
- Department of Pharmacology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan
| | - Kazutake Tsujikawa
- Laboratory of Molecular and Cellular Physiology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka 565-0871, Japan;
| | - Hirotsugu Okamoto
- Department of Anesthesiology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan (H.O.)
| | - Hideki Amano
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara 252-0373, Japan; (A.Y.); (Y.I.); (K.H.)
- Department of Pharmacology, Kitasato University School of Medicine, Sagamihara 252-0374, Japan
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4
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Osada M, Yamashita A, Akinaga S, Hosono K, Ito Y, Shibuya M, Asari Y, Amano H. VEGFR1 TK signaling protects the lungs against LPS-induced injury by suppressing the activity of alveolar macrophages and enhancing the anti-inflammatory function of monocyte-derived macrophages. Toxicol Appl Pharmacol 2024; 492:117083. [PMID: 39233289 DOI: 10.1016/j.taap.2024.117083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 08/13/2024] [Accepted: 08/30/2024] [Indexed: 09/06/2024]
Abstract
Acute lung injury (ALI) is characterized by hyperinflammation followed by vascular leakage and respiratory failure. Vascular endothelial growth factor (VEGF)-A is critical for capillary permeability; however, the role of VEGF receptor 1 (VEGFR1) signaling in ALI progression remains unclear. Here, we show that deletion of VEGFR1 tyrosine kinase (TK) signaling in mice exacerbates lipopolysaccharide (LPS)-induced ALI as evidenced by excessive pro-inflammatory cytokine production and interleukin(IL)-1β-producing neutrophil recruitment to inflamed lung tissues. ALI development involves reduced alveolar macrophage (AM) levels and recruitment of monocyte-derived macrophages (MDMs) in a VEGFR1 TK-dependent manner. VEGFR1 TK signaling reduced pro-inflammatory cytokine levels in cultured AMs. VEGFR1 TK-expressing MDMs displayed an anti-inflammatory macrophage phenotype. Additionally, the transplantation of VEGFR1 TK-expressing bone marrow (BM)-derived macrophages into VEGFR1 TK-deficient mice reduced lung inflammation. Treatment with placental growth factor (PlGF), an agonist for VEGFR1, protected the lung against LPS-induced ALI associated with increased MDMs. These results suggest that VEGFR1 TK signaling prevents LPS-induced ALI by suppressing the pro-inflammatory activity of AMs and enhancing the anti-inflammatory function of MDMs.
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Affiliation(s)
- Mayuko Osada
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan; Department of Emergency and Critical Care Medicine, Kitasato University School of Medicine, Sagamihara, Japan
| | - Atsushi Yamashita
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan; Department of Anesthesiology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Seishiro Akinaga
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan; Department of Emergency and Critical Care Medicine, Kitasato University School of Medicine, Sagamihara, Japan
| | - Kanako Hosono
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan; Department of Pharmacology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Yoshiya Ito
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan; Department of Pharmacology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Masabumi Shibuya
- Institute of Physiology and Medicine, Jobu University, Takasaki, Japan
| | - Yasushi Asari
- Department of Emergency and Critical Care Medicine, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hideki Amano
- Department of Molecular Pharmacology, Graduate School of Medical Sciences, Kitasato University, Sagamihara, Japan; Department of Pharmacology, Kitasato University School of Medicine, Sagamihara, Japan.
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5
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King EM, McClendon J, Trinh T, Matsuda JL, Lyn-Kew KH, McCubbrey AL, Mould KJ, Henson PM, Janssen WJ. Slamf7 is dispensable in mouse models of acute lung injury. ERJ Open Res 2024; 10:00345-2024. [PMID: 39377087 PMCID: PMC11456964 DOI: 10.1183/23120541.00345-2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 05/14/2024] [Indexed: 10/09/2024] Open
Abstract
Slamf7 is expressed by monocyte-derived macrophages recruited to the lungs during injury. Whole-body and macrophage-specific knockouts of Slamf7 had no effect on the degree of inflammation in three mouse models of acute lung injury. https://bit.ly/3KgTJg1.
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Affiliation(s)
- Emily M. King
- University of Colorado Anschutz Medical Campus, Department of Medicine, Aurora, CO, USA
| | | | | | | | | | - Alexandra L. McCubbrey
- University of Colorado Anschutz Medical Campus, Department of Medicine, Aurora, CO, USA
- National Jewish Health, Department of Medicine, Denver, CO, USA
| | - Kara J. Mould
- University of Colorado Anschutz Medical Campus, Department of Medicine, Aurora, CO, USA
- National Jewish Health, Department of Medicine, Denver, CO, USA
| | - Peter M. Henson
- University of Colorado Anschutz Medical Campus, Department of Medicine, Aurora, CO, USA
- National Jewish Health, Department of Pediatrics, Denver, CO, USA
| | - William J. Janssen
- University of Colorado Anschutz Medical Campus, Department of Medicine, Aurora, CO, USA
- National Jewish Health, Department of Medicine, Denver, CO, USA
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6
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Chung KP, Cheng CN, Chen YJ, Hsu CL, Huang YL, Hsieh MS, Kuo HC, Lin YT, Juan YH, Nakahira K, Chen YF, Liu WL, Ruan SY, Chien JY, Plataki M, Cloonan SM, Carmeliet P, Choi AMK, Kuo CH, Yu CJ. Alveolar epithelial cells mitigate neutrophilic inflammation in lung injury through regulating mitochondrial fatty acid oxidation. Nat Commun 2024; 15:7241. [PMID: 39174557 PMCID: PMC11341863 DOI: 10.1038/s41467-024-51683-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 08/13/2024] [Indexed: 08/24/2024] Open
Abstract
Type 2 alveolar epithelial (AT2) cells of the lung are fundamental in regulating alveolar inflammation in response to injury. Impaired mitochondrial long-chain fatty acid β-oxidation (mtLCFAO) in AT2 cells is assumed to aggravate alveolar inflammation in acute lung injury (ALI), yet the importance of mtLCFAO to AT2 cell function needs to be defined. Here we show that expression of carnitine palmitoyltransferase 1a (CPT1a), a mtLCFAO rate limiting enzyme, in AT2 cells is significantly decreased in acute respiratory distress syndrome (ARDS). In mice, Cpt1a deletion in AT2 cells impairs mtLCFAO without reducing ATP production and alters surfactant phospholipid abundance in the alveoli. Impairing mtLCFAO in AT2 cells via deleting either Cpt1a or Acadl (acyl-CoA dehydrogenase long chain) restricts alveolar inflammation in ALI by hindering the production of the neutrophilic chemokine CXCL2 from AT2 cells. This study thus highlights mtLCFAO as immunometabolism to injury in AT2 cells and suggests impaired mtLCFAO in AT2 cells as an anti-inflammatory response in ARDS.
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Grants
- K08 HL157728 NHLBI NIH HHS
- 109-O04, 110-O07, 110-S4872, 111-S0075, 113-S0079 National Taiwan University Hospital (NTUH)
- NTUCDP-112L7745, NTUCDP-112L7746, 110T099, NTU-NFG-110L7422 National Taiwan University (NTU)
- National Science and Technology Council (Taiwan) (MOST-108-2628-B-002-017 [K.P.C.], MOST-109-2628-B-002-044 [K.P.C.], MOST-110-2628-B-002-029 [K.P.C.], MOST-110-2628-B-002-045-MY3 [K.P.C.], MOST-111-2628-B-002-030-MY3 [K.P.C.])
- National Science and Technology Council (Taiwan), MOST 107-2314-B-002-235-MY3
- National Science and Technology Council (Taiwan), MOST 110-2314-B-002-262
- National Taiwan University School of Pharmacy Endowment Fund in support of the Platform for Clinical Mass Spectrometry and NMR Structure Elucidation
- Research funding provided by Mr. Barry Lam, the chairman of Quanta Computer Inc
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Affiliation(s)
- Kuei-Pin Chung
- Department of Laboratory Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan.
| | - Chih-Ning Cheng
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
- The Metabolomics Core Laboratory, Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan
| | - Yi-Jung Chen
- Department of Laboratory Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chia-Lang Hsu
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Lin Huang
- Department of Pathology, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Min-Shu Hsieh
- Department of Pathology, National Taiwan University Cancer Center, Taipei, Taiwan
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Pathology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Han-Chun Kuo
- The Metabolomics Core Laboratory, Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan
| | - Ya-Ting Lin
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
- The Metabolomics Core Laboratory, Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan
| | - Yi-Hsiu Juan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Kiichi Nakahira
- Department of Pharmacology, Nara Medical University, Kashihara, Nara, Japan
| | - Yen-Fu Chen
- Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan
| | - Wei-Lun Liu
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
- Department of Critical Care Medicine, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei, Taiwan
| | - Sheng-Yuan Ruan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Jung-Yien Chien
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Maria Plataki
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- New York Presbyterian Hospital-Weill Cornell Medical Center, New York, NY, USA
| | - Suzanne M Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology and Leuven Cancer Institute (LKI), KU Leuven, VIB Center for Cancer Biology, Leuven, Belgium
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Augustine M K Choi
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- New York Presbyterian Hospital-Weill Cornell Medical Center, New York, NY, USA
| | - Ching-Hua Kuo
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan.
- The Metabolomics Core Laboratory, Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan.
- Department of Pharmacy, National Taiwan University Hospital, Taipei, Taiwan.
| | - Chong-Jen Yu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.
- Department of Internal Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan.
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
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7
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Radbel J, Meshanni JA, Vayas KN, Le-Hoang O, Abramova E, Zhou P, Joseph LB, Laskin JD, Gow AJ, Laskin DL. Effects of ozone exposure on lung injury, inflammation, and oxidative stress in a murine model of nonpneumonic endotoxemia. Toxicol Sci 2024; 200:299-311. [PMID: 38749002 DOI: 10.1093/toxsci/kfae062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024] Open
Abstract
Recent studies have identified exposure to environmental levels of ozone as a risk factor for the development of acute respiratory distress syndrome (ARDS), a severe form of acute lung injury (ALI) that can develop in humans with sepsis. The aim of this study was to develop a murine model of ALI to mechanistically explore the impact of ozone exposure on ARDS development. Mice were exposed to ozone (0.8 ppm, 3 h) or air control followed 24 h later by intravenous administration of 3 mg/kg lipopolysaccharide (LPS) or PBS. Exposure of mice to ozone + LPS caused alveolar hyperplasia; increased BAL levels of albumin, IgM, phospholipids, and proinflammatory mediators including surfactant protein D and soluble receptor for advanced glycation end products were also detected in BAL, along with markers of oxidative and nitrosative stress. Administration of ozone + LPS resulted in an increase in neutrophils and anti-inflammatory macrophages in the lung, with no effects on proinflammatory macrophages. Conversely, the numbers of resident alveolar macrophages decreased after ozone + LPS; however, expression of Nos2, Arg1, Cxcl1, Cxcl2, Ccl2 by these cells increased, indicating that they are activated. These findings demonstrate that ozone sensitizes the lung to respond to endotoxin, resulting in ALI, oxidative stress, and exacerbated pulmonary inflammation, and provide support for the epidemiologic association between ozone exposure and ARDS incidence.
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Affiliation(s)
- Jared Radbel
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey 08901, USA
| | - Jaclynn A Meshanni
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Kinal N Vayas
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Oahn Le-Hoang
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey 08901, USA
| | - Elena Abramova
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Peihong Zhou
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Laurie B Joseph
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Jeffrey D Laskin
- Department of Environmental and Occupational Health and Justice, School of Public Health, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Andrew J Gow
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
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8
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Korkmaz FT, Quinton LJ. Extra-pulmonary control of respiratory defense. Cell Immunol 2024; 401-402:104841. [PMID: 38878619 DOI: 10.1016/j.cellimm.2024.104841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 06/06/2024] [Indexed: 07/13/2024]
Abstract
Pneumonia persists as a public health crisis, representing the leading cause of death due to infection. Whether respiratory tract infections progress to pneumonia and its sequelae such as acute respiratory distress syndrome and sepsis depends on numerous underlying conditions related to both the causative agent and host. Regarding the former, pneumonia burden remains staggeringly high, despite the effectiveness of pathogen-targeting strategies such as vaccines and antibiotics. This demands a greater understanding of host features that collaborate to promote immune resistance and tissue resilience in the infected lung. Such features inside the pulmonary compartment have drawn much attention, where major advances have been made related to resident and recruited immune activity. By comparison, extra-pulmonary processes guiding pneumonia susceptibility are relatively elusive, constituting the focus of this review. Here we will highlight examples of when, how, and why tissues outside of the lungs dispatch signals that modulate local immunity in the airspaces. Topics include the liver, gut, bone marrow, brain and more, all of which contribute in direct and indirect ways to pneumonia outcome. When tuned appropriately, it has become clear that these responses can serve protective roles, and this will be considered distinctly from what would otherwise be aberrant responses characteristic of pneumonia-induced organ injury and sepsis. Further advances in this area may reveal novel targetable areas for clinical intervention that are not confined to the intra-pulmonary space.
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Affiliation(s)
- Filiz T Korkmaz
- Department of Medicine, Division of Immunology and Infectious Disease, UMass Chan Medical School, Worcester, MA 01602, United States.
| | - Lee J Quinton
- Department of Medicine, Division of Immunology and Infectious Disease, UMass Chan Medical School, Worcester, MA 01602, United States
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9
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Tighe RM, Birukova A, Malakhau Y, Kobayashi Y, Vose AT, Chandramohan V, Cyphert-Daly JM, Cumming RI, Fradin Kirshner H, Tata PR, Ingram JL, Gunn MD, Que LG, Yu YRA. Altered ontogeny and transcriptomic signatures of tissue-resident pulmonary interstitial macrophages ameliorate allergic airway hyperresponsiveness. Front Immunol 2024; 15:1371764. [PMID: 38983858 PMCID: PMC11231371 DOI: 10.3389/fimmu.2024.1371764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 06/05/2024] [Indexed: 07/11/2024] Open
Abstract
Introduction Environmental exposures and experimental manipulations can alter the ontogenetic composition of tissue-resident macrophages. However, the impact of these alterations on subsequent immune responses, particularly in allergic airway diseases, remains poorly understood. This study aims to elucidate the significance of modified macrophage ontogeny resulting from environmental exposures on allergic airway responses to house dust mite (HDM) allergen. Methods We utilized embryonic lineage labeling to delineate the ontogenetic profile of tissue-resident macrophages at baseline and following the resolution of repeated lipopolysaccharide (LPS)-induced lung injury. We investigated differences in house dust mite (HDM)-induced allergy to assess the influence of macrophage ontogeny on allergic airway responses. Additionally, we employed single-cell RNA sequencing (scRNAseq) and immunofluorescent staining to characterize the pulmonary macrophage composition, associated pathways, and tissue localization. Results Our findings demonstrate that the ontogeny of homeostatic alveolar and interstitial macrophages is altered after the resolution from repeated LPS-induced lung injury, leading to the replacement of embryonic-derived by bone marrow-derived macrophages. This shift in macrophage ontogeny is associated with reduced HDM-induced allergic airway responses. Through scRNAseq and immunofluorescent staining, we identified a distinct subset of resident-derived interstitial macrophages expressing genes associated with allergic airway diseases, localized adjacent to terminal bronchi, and diminished by prior LPS exposure. Discussion These results suggest a pivotal role for pulmonary macrophage ontogeny in modulating allergic airway responses. Moreover, our findings highlight the implications of prior environmental exposures in shaping future immune responses and influencing the development of allergies. By elucidating the mechanisms underlying these phenomena, this study provides valuable insights into potential therapeutic targets for allergic airway diseases and avenues for further research into immune modulation and allergic disease prevention.
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Affiliation(s)
- Robert M. Tighe
- Department of Medicine, Duke University, Durham, NC, United States
| | | | - Yuryi Malakhau
- Department of Medicine, Duke University, Durham, NC, United States
| | - Yoshihiko Kobayashi
- Department of Cell Biology, Duke University, Durham, NC, United States
- Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Aaron T. Vose
- Department of Medicine, Duke University, Durham, NC, United States
| | | | | | - R. Ian Cumming
- Department of Medicine, Duke University, Durham, NC, United States
| | | | | | | | - Michael D. Gunn
- Department of Medicine, Duke University, Durham, NC, United States
| | - Loretta G. Que
- Department of Medicine, Duke University, Durham, NC, United States
| | - Yen-Rei A. Yu
- Department of Medicine, Duke University, Durham, NC, United States
- Department of Medicine, University of Colorado Anschutz School of Medicine, Aurora, CO, United States
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10
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Haczku A. Cell-Corpse Clearance after Lung Damage: The Essential Role of MerTK-mediated Alveolar Macrophage Efferocytosis. Am J Respir Cell Mol Biol 2024; 70:433-434. [PMID: 38502903 PMCID: PMC11160414 DOI: 10.1165/rcmb.2024-0108ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 03/19/2024] [Indexed: 03/21/2024] Open
Affiliation(s)
- Angela Haczku
- School of Medicine University of California Davis, California
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11
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Theobald H, Bejarano DA, Katzmarski N, Haub J, Schulte-Schrepping J, Yu J, Bassler K, Ament AL, Osei-Sarpong C, Piattini F, Vornholz L, T'Jonck W, Györfi AH, Hayer H, Yu X, Sheoran S, Al Jawazneh A, Chakarov S, Haendler K, Brown GD, Williams DL, Bosurgi L, Distler JHW, Ginhoux F, Ruland J, Beyer MD, Greter M, Bain CC, Vazquez-Armendariz AI, Kopf M, Schultze JL, Schlitzer A. Apolipoprotein E controls Dectin-1-dependent development of monocyte-derived alveolar macrophages upon pulmonary β-glucan-induced inflammatory adaptation. Nat Immunol 2024; 25:994-1006. [PMID: 38671323 PMCID: PMC11147775 DOI: 10.1038/s41590-024-01830-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/27/2024] [Indexed: 04/28/2024]
Abstract
The lung is constantly exposed to the outside world and optimal adaptation of immune responses is crucial for efficient pathogen clearance. However, mechanisms that lead to lung-associated macrophages' functional and developmental adaptation remain elusive. To reveal such mechanisms, we developed a reductionist model of environmental intranasal β-glucan exposure, allowing for the detailed interrogation of molecular mechanisms of pulmonary macrophage adaptation. Employing single-cell transcriptomics, high-dimensional imaging and flow cytometric characterization paired with in vivo and ex vivo challenge models, we reveal that pulmonary low-grade inflammation results in the development of apolipoprotein E (ApoE)-dependent monocyte-derived alveolar macrophages (ApoE+CD11b+ AMs). ApoE+CD11b+ AMs expressed high levels of CD11b, ApoE, Gpnmb and Ccl6, were glycolytic, highly phagocytic and produced large amounts of interleukin-6 upon restimulation. Functional differences were cell intrinsic, and myeloid cell-specific ApoE ablation inhibited Ly6c+ monocyte to ApoE+CD11b+ AM differentiation dependent on macrophage colony-stimulating factor secretion, promoting ApoE+CD11b+ AM cell death and thus impeding ApoE+CD11b+ AM maintenance. In vivo, β-glucan-elicited ApoE+CD11b+ AMs limited the bacterial burden of Legionella pneumophilia after infection and improved the disease outcome in vivo and ex vivo in a murine lung fibrosis model. Collectively these data identify ApoE+CD11b+ AMs generated upon environmental cues, under the control of ApoE signaling, as an essential determinant for lung adaptation enhancing tissue resilience.
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Affiliation(s)
- H Theobald
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - D A Bejarano
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - N Katzmarski
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - J Haub
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - J Schulte-Schrepping
- Genomics & Immunoregulation, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
- Systems Medicine, Deutsches Zentrum für Neurodegenerativen Erkrankungen (DZNE), Bonn, Germany
| | - J Yu
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - K Bassler
- Genomics & Immunoregulation, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - A L Ament
- University of Bonn, Transdisciplinary Research Area Life and Health, Organoid Biology, Life & Medical Sciences Institute, Bonn, Germany
| | - C Osei-Sarpong
- Immunogenomics & Neurodegeneration, German Center for Neurodegenerative Diseases, Bonn, Germany
| | - F Piattini
- Institute of Molecular Health Science, Department of Biology, ETH Zürich, Zürich, Switzerland
| | - L Vornholz
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine and Health, Technical University of Munich, Munich, Germany
- TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany
| | - W T'Jonck
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh BioQuarter, Edinburgh, UK
| | - A H Györfi
- Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University, Düsseldorf, Germany
- Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University, Düsseldorf, Germany
| | - H Hayer
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - X Yu
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - S Sheoran
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - A Al Jawazneh
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Protozoa Immunology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - S Chakarov
- Shanghai Institute of Immunology, Shanghai JiaoTong School of Medicine, Shanghai, China
| | - K Haendler
- PRECISE Platform for Single Cell Genomics and Epigenomics at DZNE & University of Bonn and West German Genome Center, Bonn, Germany
- Institute of Human Genetics, University Medical Center Schleswig-Holstein, University of Luebeck & Kiel University, Luebeck, Germany
| | - G D Brown
- MRC Centre for Medical Mycology, University of Exeter, Exeter, UK
| | - D L Williams
- Department of Surgery and Center for Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA
| | - L Bosurgi
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Protozoa Immunology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - J H W Distler
- Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University, Düsseldorf, Germany
- Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University, Düsseldorf, Germany
| | - F Ginhoux
- Shanghai Institute of Immunology, Shanghai JiaoTong School of Medicine, Shanghai, China
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore, Singapore
- INSERM U1015, Gustave Roussy Cancer Campus, Villejuif, France
| | - J Ruland
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine and Health, Technical University of Munich, Munich, Germany
- TranslaTUM, Center for Translational Cancer Research, Technical University of Munich, Munich, Germany
- German Center for Infection Research (DZIF), partner site Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
| | - M D Beyer
- Immunogenomics & Neurodegeneration, German Center for Neurodegenerative Diseases, Bonn, Germany
- PRECISE Platform for Single Cell Genomics and Epigenomics at DZNE & University of Bonn and West German Genome Center, Bonn, Germany
| | - M Greter
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - C C Bain
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh BioQuarter, Edinburgh, UK
| | - A I Vazquez-Armendariz
- University of Bonn, Transdisciplinary Research Area Life and Health, Organoid Biology, Life & Medical Sciences Institute, Bonn, Germany
| | - M Kopf
- Institute of Molecular Health Science, Department of Biology, ETH Zürich, Zürich, Switzerland
| | - J L Schultze
- Genomics & Immunoregulation, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany
- Systems Medicine, Deutsches Zentrum für Neurodegenerativen Erkrankungen (DZNE), Bonn, Germany
- PRECISE Platform for Single Cell Genomics and Epigenomics at DZNE & University of Bonn and West German Genome Center, Bonn, Germany
| | - A Schlitzer
- Quantitative Systems Biology, Life & Medical Sciences Institute, University of Bonn, Bonn, Germany.
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12
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Guttenberg MA, Vose AT, Birukova A, Lewars K, Cumming RI, Albright MC, Mark JI, Salazar CJ, Swaminathan S, Yu Z, Sokolenko YV, Bunyan E, Yaeger MJ, Fessler MB, Que LG, Gowdy KM, Misharin AV, Tighe RM. Tissue-Resident Alveolar Macrophages Reduce Ozone-induced Inflammation via MerTK-mediated Efferocytosis. Am J Respir Cell Mol Biol 2024; 70:493-506. [PMID: 38386777 PMCID: PMC11160417 DOI: 10.1165/rcmb.2023-0390oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/22/2024] [Indexed: 02/24/2024] Open
Abstract
Lung inflammation, caused by acute exposure to ozone (O3), one of the six criteria air pollutants, is a significant source of morbidity in susceptible individuals. Alveolar macrophages (AMØs) are the most abundant immune cells in the normal lung, and their number increases after O3 exposure. However, the role of AMØs in promoting or limiting O3-induced lung inflammation has not been clearly defined. In this study, we used a mouse model of acute O3 exposure, lineage tracing, genetic knockouts, and data from O3-exposed human volunteers to define the role and ontogeny of AMØs during acute O3 exposure. Lineage-tracing experiments showed that 12, 24, and 72 hours after exposure to O3 (2 ppm) for 3 hours, all AMØs were of tissue-resident origin. Similarly, in humans exposed to filtered air and O3 (200 ppb) for 135 minutes, we did not observe at ∼21 hours postexposure an increase in monocyte-derived AMØs by flow cytometry. Highlighting a role for tissue-resident AMØs, we demonstrate that depletion of tissue-resident AMØs with clodronate-loaded liposomes led to persistence of neutrophils in the alveolar space after O3 exposure, suggesting that impaired neutrophil clearance (i.e., efferocytosis) leads to prolonged lung inflammation. Moreover, depletion of tissue-resident AMØs demonstrated reduced clearance of intratracheally instilled apoptotic Jurkat cells, consistent with reduced efferocytosis. Genetic ablation of MerTK (MER proto-oncogene, tyrosine kinase), a key receptor involved in efferocytosis, also resulted in impaired clearance of apoptotic neutrophils after O3 exposure. Overall, these findings underscore the pivotal role of tissue-resident AMØs in resolving O3-induced inflammation via MerTK-mediated efferocytosis.
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Affiliation(s)
- Marissa A. Guttenberg
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, North Carolina
| | - Aaron T. Vose
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, North Carolina
| | - Anastasiya Birukova
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, North Carolina
| | - Kaitlyn Lewars
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, North Carolina
| | - R. Ian Cumming
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, North Carolina
| | - Michaela C. Albright
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, North Carolina
| | - Jasper I. Mark
- Department of Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Claudia J. Salazar
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, North Carolina
| | - Suchitra Swaminathan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Zhan Yu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Yuliana V. Sokolenko
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Elsie Bunyan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Michael J. Yaeger
- Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University, Columbus, Ohio; and
| | - Michael B. Fessler
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - Loretta G. Que
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, North Carolina
| | - Kymberly M. Gowdy
- Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University, Columbus, Ohio; and
| | - Alexander V. Misharin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, Illinois
| | - Robert M. Tighe
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, North Carolina
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13
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Pervizaj-Oruqaj L, Ferrero MR, Matt U, Herold S. The guardians of pulmonary harmony: alveolar macrophages orchestrating the symphony of lung inflammation and tissue homeostasis. Eur Respir Rev 2024; 33:230263. [PMID: 38811033 PMCID: PMC11134199 DOI: 10.1183/16000617.0263-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/20/2024] [Indexed: 05/31/2024] Open
Abstract
Recent breakthroughs in single-cell sequencing, advancements in cellular and tissue imaging techniques, innovations in cell lineage tracing, and insights into the epigenome collectively illuminate the enigmatic landscape of alveolar macrophages in the lung under homeostasis and disease conditions. Our current knowledge reveals the cellular and functional diversity of alveolar macrophages within the respiratory system, emphasising their remarkable adaptability. By synthesising insights from classical cell and developmental biology studies, we provide a comprehensive perspective on alveolar macrophage functional plasticity. This includes an examination of their ontology-related features, their role in maintaining tissue homeostasis under steady-state conditions and the distinct contribution of bone marrow-derived macrophages (BMDMs) in promoting tissue regeneration and restoring respiratory system homeostasis in response to injuries. Elucidating the signalling pathways within inflammatory conditions, the impact of various triggers on tissue-resident alveolar macrophages (TR-AMs), as well as the recruitment and polarisation of macrophages originating from the bone marrow, presents an opportunity to propose innovative therapeutic approaches aimed at modulating the equilibrium between phenotypes to induce programmes associated with a pro-regenerative or homeostasis phenotype of BMDMs or TR-AMs. This, in turn, can lead to the amelioration of disease outcomes and the attenuation of detrimental inflammation. This review comprehensively addresses the pivotal role of macrophages in the orchestration of inflammation and resolution phases after lung injury, as well as ageing-related shifts and the influence of clonal haematopoiesis of indeterminate potential mutations on alveolar macrophages, exploring altered signalling pathways and transcriptional profiles, with implications for respiratory homeostasis.
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Affiliation(s)
- Learta Pervizaj-Oruqaj
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
| | - Maximiliano Ruben Ferrero
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA), Buenos Aires, Argentina
| | - Ulrich Matt
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
| | - Susanne Herold
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, University Hospital Giessen, Justus Liebig University, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Giessen, Germany
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14
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Dai C, Zhang H, Zheng Z, Li CG, Ma M, Gao H, Zhang Q, Jiang F, Cui X. Identification of a distinct cluster of GDF15 high macrophages induced by in vitro differentiation exhibiting anti-inflammatory activities. Front Immunol 2024; 15:1309739. [PMID: 38655264 PMCID: PMC11036887 DOI: 10.3389/fimmu.2024.1309739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 03/25/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Macrophage-mediated inflammatory response may have crucial roles in the pathogenesis of a variety of human diseases. Growth differentiation factor 15 (GDF15) is a cytokine of the transforming growth factor-β superfamily, with potential anti-inflammatory activities. Previous studies observed in human lungs some macrophages which expressed a high level of GDF15. Methods In the present study, we employed multiple techniques, including immunofluorescence, flow cytometry, and single-cell RNA sequencing, in order to further clarify the identity of such GDF15high macrophages. Results We demonstrated that macrophages derived from human peripheral blood mononuclear cells and rat bone marrow mononuclear cells by in vitro differentiation with granulocyte-macrophage colony stimulating factor contained a minor population (~1%) of GDF15high cells. GDF15high macrophages did not exhibit a typical M1 or M2 phenotype, but had a unique molecular signature as revealed by single-cell RNA sequencing. Functionally, the in vitro derived GDF15high macrophages were associated with reduced responsiveness to pro-inflammatory activation; furthermore, these GDF15high macrophages could inhibit the pro-inflammatory functions of other macrophages via a paracrine mechanism. We further confirmed that GDF15 per se was a key mediator of the anti-inflammatory effects of GDF15high macrophage. Also, we provided evidence showing that GDF15high macrophages were present in other macrophage-residing human tissues in addition to the lungs. Further scRNA-seq analysis in rat lung macrophages confirmed the presence of a GDF15high sub-population. However, these data indicated that GDF15high macrophages in the body were not a uniform population based on their molecular signatures. More importantly, as compared to the in vitro derived GDF15high macrophage, whether the tissue resident GDF15high counterpart is also associated with anti-inflammatory functions remains to be determined. We cannot exclude the possibility that the in vitro priming/induction protocol used in our study has a determinant role in inducing the anti-inflammatory phenotype in the resulting GDF15high macrophage cells. Conclusion In summary, our results suggest that the GDF15high macrophage cells obtained by in vitro induction may represent a distinct cluster with intrinsic anti-inflammatory functions. The (patho)physiological importance of these cells in vivo warrants further investigation.
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Affiliation(s)
- Chaochao Dai
- Key Laboratory of Cardiovascular Proteomics of Shandong Province and Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Hongyu Zhang
- Key Laboratory of Cardiovascular Proteomics of Shandong Province and Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Zhijian Zheng
- Key Laboratory of Cardiovascular Remodeling and Function Research (Chinese Ministry of Education and Chinese National Health Commission), Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Chun Guang Li
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia
| | - Mingyuan Ma
- Key Laboratory of Cardiovascular Proteomics of Shandong Province and Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Haiqing Gao
- Key Laboratory of Cardiovascular Proteomics of Shandong Province and Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Qunye Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research (Chinese Ministry of Education and Chinese National Health Commission), Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Fan Jiang
- Key Laboratory of Cardiovascular Proteomics of Shandong Province and Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Xiaopei Cui
- Key Laboratory of Cardiovascular Proteomics of Shandong Province and Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, Shandong, China
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Russo S, Kwiatkowski M, Wolters JC, Gerding A, Hermans J, Govorukhina N, Bischoff R, Melgert BN. Effects of lysine deacetylase inhibitor treatment on LPS responses of alveolar-like macrophages. J Leukoc Biol 2024; 115:435-449. [PMID: 37811856 DOI: 10.1093/jleuko/qiad121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 10/10/2023] Open
Abstract
Macrophages are key immune cells that can adapt their metabolic phenotype in response to different stimuli. Lysine deacetylases are important enzymes regulating inflammatory gene expression and lysine deacetylase inhibitors have been shown to exert anti-inflammatory effects in models of chronic obstructive pulmonary disease. We hypothesized that these anti-inflammatory effects may be associated with metabolic changes in macrophages. To validate this hypothesis, we used an unbiased and a targeted proteomic approach to investigate metabolic enzymes, as well as liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry, to quantify metabolites in combination with the measurement of functional parameters in primary murine alveolar-like macrophages after lipopolysaccharide-induced activation in the presence or absence of lysine deacetylase inhibition. We found that lysine deacetylase inhibition resulted in reduced production of inflammatory mediators such as tumor necrosis factor α and interleukin 1β. However, only minor changes in macrophage metabolism were observed, as only one of the lysine deacetylase inhibitors slightly increased mitochondrial respiration while no changes in metabolite levels were seen. However, lysine deacetylase inhibition specifically enhanced expression of proteins involved in ubiquitination, which may be a driver of the anti-inflammatory effects of lysine deacetylase inhibitors. Our data illustrate that a multiomics approach provides novel insights into how macrophages interact with cues from their environment. More detailed studies investigating ubiquitination as a potential driver of lysine deacetylase inhibition will help developing novel anti-inflammatory drugs for difficult-to-treat diseases such as chronic obstructive pulmonary disease.
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Affiliation(s)
- Sara Russo
- Department of Analytical Biochemistry, University of Groningen, Antonius Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Marcel Kwiatkowski
- Functional Proteo-Metabolomics, Department of Biochemistry, University of Innsbruck, Innrain 80-82, Innsbruck 6020, Austria
| | - Justina C Wolters
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen 9713 GZ, The Netherlands
| | - Albert Gerding
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen 9713 GZ, The Netherlands
| | - Jos Hermans
- Department of Analytical Biochemistry, University of Groningen, Antonius Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Natalia Govorukhina
- Department of Analytical Biochemistry, University of Groningen, Antonius Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Rainer Bischoff
- Department of Analytical Biochemistry, University of Groningen, Antonius Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Barbro N Melgert
- Department of Molecular Pharmacology, University of Groningen, Antonius Deusinglaan 1, Groningen 9713 AV, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, Hanzeplein 1, Groningen 9713 GZ, The Netherlands
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16
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Xuan L, Ren L, Zhang W, Du P, Li B, An Z. Formaldehyde aggravates airway inflammation through induction of glycolysis in an experimental model of asthma exacerbated by lipopolysaccharide. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168947. [PMID: 38043820 DOI: 10.1016/j.scitotenv.2023.168947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/25/2023] [Accepted: 11/25/2023] [Indexed: 12/05/2023]
Abstract
Formaldehyde (FA) exposure has been reported to induce or aggravate allergic asthma. Infection is also a potential risk factor for the onset and aggravation of asthma. However, no study has addressed the effects of FA exposure on asthmatic patients with respiratory infection. FA is ubiquitous in environment and respiratory infections are common in clinics. Therefore, it is necessary to explore whether FA exposure leads to the further worsening of symptoms in asthma patients with existing respiratory infection. In the present study, ovalbumin (OVA) was used to establish the murine asthma model. Lipopolysaccharide (LPS) was intratracheal administrated to mimic asthma with respiratory infection. The mice were exposed to 0.5 mg/m3 FA. FA exposure did not induce a significant aggravation on OVA induced allergic asthma. However, the lung function of specific airway resistance (sRaw), histological changes and cytokines production were greatly aggravated by FA exposure in OVA/LPS induced murine asthma model. Monocyte-derived macrophages (MDMs) were isolated from asthmatic patients. Exposure of MDMs to FA and LPS resulted in increased TNF-α, IL-6, IL-1β, and nitric oxide (NO) production. Lactate produciton and lactate dehydrogenase A (LDHA) expression were found to be upregulated by FA in OVA/LPS induced asthmatic mice and LPS stimulated MDMs. Furthermore, glycolysis inhibitor 2-Deoxy-d-glucose attenuated FA and LPS induced TNF-α, IL-6, IL-1β, and NO production. We conclude that FA exposure can lead to the aggravation of allergic asthma with infection through induction of glycolysis. This study could offer some new insight into how FA promotes asthma development.
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Affiliation(s)
- Lingling Xuan
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, No.8 Gongti South Road, Chaoyang District, Beijing 100020, China
| | - Lulu Ren
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, No.8 Gongti South Road, Chaoyang District, Beijing 100020, China
| | - Wen Zhang
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, No.8 Gongti South Road, Chaoyang District, Beijing 100020, China
| | - Ping Du
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, No.8 Gongti South Road, Chaoyang District, Beijing 100020, China
| | - Boyu Li
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, No.8 Gongti South Road, Chaoyang District, Beijing 100020, China
| | - Zhuoling An
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, No.8 Gongti South Road, Chaoyang District, Beijing 100020, China.
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17
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Wohnhaas CT, Baßler K, Watson CK, Shen Y, Leparc GG, Tilp C, Heinemann F, Kind D, Stierstorfer B, Delić D, Brunner T, Gantner F, Schultze JL, Viollet C, Baum P. Monocyte-derived alveolar macrophages are key drivers of smoke-induced lung inflammation and tissue remodeling. Front Immunol 2024; 15:1325090. [PMID: 38348034 PMCID: PMC10859862 DOI: 10.3389/fimmu.2024.1325090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/08/2024] [Indexed: 02/15/2024] Open
Abstract
Smoking is a leading risk factor of chronic obstructive pulmonary disease (COPD), that is characterized by chronic lung inflammation, tissue remodeling and emphysema. Although inflammation is critical to COPD pathogenesis, the cellular and molecular basis underlying smoking-induced lung inflammation and pathology remains unclear. Using murine smoke models and single-cell RNA-sequencing, we show that smoking establishes a self-amplifying inflammatory loop characterized by an influx of molecularly heterogeneous neutrophil subsets and excessive recruitment of monocyte-derived alveolar macrophages (MoAM). In contrast to tissue-resident AM, MoAM are absent in homeostasis and characterized by a pro-inflammatory gene signature. Moreover, MoAM represent 46% of AM in emphysematous mice and express markers causally linked to emphysema. We also demonstrate the presence of pro-inflammatory and tissue remodeling associated MoAM orthologs in humans that are significantly increased in emphysematous COPD patients. Inhibition of the IRAK4 kinase depletes a rare inflammatory neutrophil subset, diminishes MoAM recruitment, and alleviates inflammation in the lung of cigarette smoke-exposed mice. This study extends our understanding of the molecular signaling circuits and cellular dynamics in smoking-induced lung inflammation and pathology, highlights the functional consequence of monocyte and neutrophil recruitment, identifies MoAM as key drivers of the inflammatory process, and supports their contribution to pathological tissue remodeling.
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Affiliation(s)
- Christian T. Wohnhaas
- Translational Medicine & Clinical Pharmacology, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Kevin Baßler
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Carolin K. Watson
- Immunology & Respiratory Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Yang Shen
- Global Computational Biology and Digital Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Germán G. Leparc
- Translational Medicine & Clinical Pharmacology, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Cornelia Tilp
- Immunology & Respiratory Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Fabian Heinemann
- Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - David Kind
- Global Computational Biology and Digital Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Birgit Stierstorfer
- Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Denis Delić
- Translational Medicine & Clinical Pharmacology, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Centre Mannheim, University of Heidelberg, Mannheim, Germany
| | - Thomas Brunner
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Florian Gantner
- Department of Biology, University of Konstanz, Konstanz, Germany
- Translational Medicine & Clinical Pharmacology, C. H. Boehringer Sohn AG & Co. KG, Biberach, Germany
| | - Joachim L. Schultze
- Genomics and Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
- Systems Medicine, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- PRECISE Platform for Single Cell Genomics and Epigenomics, German Center for Neurodegenerative Diseases (DZNE) and University of Bonn, Bonn, Germany
| | - Coralie Viollet
- Global Computational Biology and Digital Sciences, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Patrick Baum
- Translational Medicine & Clinical Pharmacology, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
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18
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Rigamonti A, Villar J, Segura E. Monocyte differentiation within tissues: a renewed outlook. Trends Immunol 2023; 44:999-1013. [PMID: 37949783 DOI: 10.1016/j.it.2023.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 11/12/2023]
Abstract
When recruited to mammalian tissues, monocytes differentiate into macrophages or dendritic cells (DCs). In the past few years, the existence of monocyte-derived DCs (moDCs) was questioned by the discovery of new DC populations with overlapping phenotypes. Here, we critically review the evidence for monocyte differentiation into DCs in tissues and highlight their specific functions. Recent studies have shown that monocyte-derived macrophages (moMacs) with distinct life cycles coexist in tissues, both at steady state and upon inflammation. Integrating studies in mice and humans, we highlight specific features of moMacs during inflammation and tissue repair. We also discuss the notion of monocyte differentiation occurring via a binary fate decision. Deciphering monocyte-derived cell properties is essential for understanding their role in nonresolving inflammation and how they might be targeted for therapies.
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Affiliation(s)
| | - Javiera Villar
- Institut Curie, PSL University, INSERM, U932, 26 Rue d'Ulm, Paris 75005, France
| | - Elodie Segura
- Institut Curie, PSL University, INSERM, U932, 26 Rue d'Ulm, Paris 75005, France.
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19
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Roy RM, Allawzi A, Burns N, Sul C, Rubio V, Graham J, Stenmark K, Nozik ES, Tuder RM, Vohwinkel CU. Lactate produced by alveolar type II cells suppresses inflammatory alveolar macrophages in acute lung injury. FASEB J 2023; 37:e23316. [PMID: 37983890 PMCID: PMC10914122 DOI: 10.1096/fj.202301722r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/22/2023]
Abstract
Alveolar inflammation is a hallmark of acute lung injury (ALI), and its clinical correlate is acute respiratory distress syndrome-and it is as a result of interactions between alveolar type II cells (ATII) and alveolar macrophages (AM). In the setting of acute injury, the microenvironment of the intra-alveolar space is determined in part by metabolites and cytokines and is known to shape the AM phenotype. In response to ALI, increased glycolysis is observed in AT II cells, mediated by the transcription factor hypoxia-inducible factor (HIF) 1α, which has been shown to decrease inflammation. We hypothesized that in acute lung injury, lactate, the end product of glycolysis, produced by ATII cells shifts AMs toward an anti-inflammatory phenotype, thus mitigating ALI. We found that local intratracheal delivery of lactate improved ALI in two different mouse models. Lactate shifted cytokine expression of murine AMs toward increased IL-10, while decreasing IL-1 and IL-6 expression. Mice with ATII-specific deletion of Hif1a and mice treated with an inhibitor of lactate dehydrogenase displayed exacerbated ALI and increased inflammation with decreased levels of lactate in the bronchoalveolar lavage fluid; however, all those parameters improved with intratracheal lactate. When exposed to LPS (to recapitulate an inflammatory stimulus as it occurs in ALI), human primary AMs co-cultured with alveolar epithelial cells had reduced inflammatory responses. Taken together, these studies reveal an innate protective pathway, in which lactate produced by ATII cells shifts AMs toward an anti-inflammatory phenotype and dampens excessive inflammation in ALI.
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Affiliation(s)
- René M. Roy
- Children’s Hospital Colorado, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Ayed Allawzi
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Nana Burns
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Christina Sul
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Victoria Rubio
- Children’s Hospital Colorado, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jessica Graham
- Children’s Hospital Colorado, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kurt Stenmark
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Eva S. Nozik
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Rubin M. Tuder
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Division of Pulmonary Sciences and Critical Care Medicine, Program in Translational Lung Research, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Christine U. Vohwinkel
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
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20
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Morrell ED, Holton SE, Lawrance M, Orlov M, Franklin Z, Mitchem MA, DeBerg H, Gersuk VH, Garay A, Barnes E, Liu T, Peltan ID, Rogers A, Ziegler S, Wurfel MM, Mikacenic C. The transcriptional and phenotypic characteristics that define alveolar macrophage subsets in acute hypoxemic respiratory failure. Nat Commun 2023; 14:7443. [PMID: 37978185 PMCID: PMC10656558 DOI: 10.1038/s41467-023-43223-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023] Open
Abstract
The transcriptional and phenotypic characteristics that define alveolar monocyte and macrophage subsets in acute hypoxemic respiratory failure (AHRF) are poorly understood. Here, we apply CITE-seq (single-cell RNA-sequencing and cell-surface protein quantification) to bronchoalveolar lavage and blood specimens longitudinally collected from participants with AHRF to identify alveolar myeloid subsets, and then validate their identity in an external cohort using flow cytometry. We identify alveolar myeloid subsets with transcriptional profiles that differ from other lung diseases as well as several subsets with similar transcriptional profiles as reported in healthy participants (Metallothionein) or patients with COVID-19 (CD163/LGMN). We use information from CITE-seq to determine cell-surface proteins that distinguish transcriptional subsets (CD14, CD163, CD123, CD71, CD48, CD86 and CD44). In the external cohort, we find a higher proportion of CD163/LGMN alveolar macrophages are associated with mortality in AHRF. We report a parsimonious set of cell-surface proteins that distinguish alveolar myeloid subsets using scalable approaches that can be applied to clinical cohorts.
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Affiliation(s)
- Eric D Morrell
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA.
| | - Sarah E Holton
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Matthew Lawrance
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Marika Orlov
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Aurora, CO, USA
| | - Zoie Franklin
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | | | - Hannah DeBerg
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Vivian H Gersuk
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Ashley Garay
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Elizabeth Barnes
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Ted Liu
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Ithan D Peltan
- Division of Pulmonary and Critical Care Medicine, Intermountain Health, Murray, UT, USA
| | - Angela Rogers
- Division of Pulmonary and Critical Care, Stanford University, Stanford, CA, USA
| | - Steven Ziegler
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Mark M Wurfel
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, USA
| | - Carmen Mikacenic
- Translational Immunology, Benaroya Research Institute, Seattle, WA, USA.
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21
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Guttenberg M, Vose A, Birukova A, Lewars K, Cumming R, Albright M, Mark J, Salazar C, Swaminathan S, Yu Z, Sokolenko Y, Bunyan E, Yaeger M, Fessler M, Que L, Gowdy K, Misharin A, Tighe R. Tissue-resident alveolar macrophages reduce O 3-induced inflammation via MerTK mediated efferocytosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.06.565865. [PMID: 37986982 PMCID: PMC10659406 DOI: 10.1101/2023.11.06.565865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Lung inflammation, caused by acute exposure to ozone (O3) - one of the six criteria air pollutants - is a significant source of morbidity in susceptible individuals. Alveolar macrophages (AMØs) are the most abundant immune cells in the normal lung and their number increases following O3 exposure. However, the role of AMØs in promoting or limiting O3-induced lung inflammation has not been clearly defined. Here, we used a mouse model of acute O3 exposure, lineage tracing, genetic knockouts, and data from O3-exposed human volunteers to define the role and ontogeny of AMØs during acute O3 exposure. Lineage tracing experiments showed that 12, 24, and 72 h after exposure to O3 (2 ppm) for 3h all AMØs were tissue-resident origin. Similarly, in humans exposed to FA and O3 (200 ppb) for 135 minutes, we did not observe ~21h post-exposure an increase in monocyte-derived AMØs by flow cytometry. Highlighting a role for tissue-resident AMØs, we demonstrate that depletion of tissue-resident AMØs with clodronate-loaded liposomes led to persistence of neutrophils in the alveolar space after O3 exposure, suggesting that impaired neutrophil clearance (i.e., efferocytosis) leads to prolonged lung inflammation. Moreover, depletion of tissue-resident AMØ demonstrated reduced clearance of intratracheally instilled apoptotic Jurkat cells, consistent with reduced efferocytosis. Genetic ablation of MerTK - a key receptor involved in efferocytosis - also resulted in impaired clearance of apoptotic neutrophils followed O3 exposure. Overall, these findings underscore the pivotal role of tissue-resident AMØs in resolving O3-induced inflammation via MerTK-mediated efferocytosis.
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Affiliation(s)
- M.A. Guttenberg
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - A.T. Vose
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - A. Birukova
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - K. Lewars
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - R.I. Cumming
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - M.C. Albright
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - J.I. Mark
- Department of Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - C.J. Salazar
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - S. Swaminathan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - Z. Yu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - Yu.V. Sokolenko
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - E. Bunyan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - M.J. Yaeger
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University, Columbus, OH
| | - M.B. Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC
| | - L.G. Que
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
| | - K.M. Gowdy
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University, Columbus, OH
| | - A.V. Misharin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University, Chicago, IL
| | - R.M. Tighe
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Duke University, Durham, NC
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22
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Malainou C, Abdin SM, Lachmann N, Matt U, Herold S. Alveolar macrophages in tissue homeostasis, inflammation, and infection: evolving concepts of therapeutic targeting. J Clin Invest 2023; 133:e170501. [PMID: 37781922 PMCID: PMC10541196 DOI: 10.1172/jci170501] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023] Open
Abstract
Alveolar macrophages (AMs) are the sentinel cells of the alveolar space, maintaining homeostasis, fending off pathogens, and controlling lung inflammation. During acute lung injury, AMs orchestrate the initiation and resolution of inflammation in order to ultimately restore homeostasis. This central role in acute lung inflammation makes AMs attractive targets for therapeutic interventions. Single-cell RNA-Seq and spatial omics approaches, together with methodological advances such as the generation of human macrophages from pluripotent stem cells, have increased understanding of the ontogeny, function, and plasticity of AMs during infectious and sterile lung inflammation, which could move the field closer to clinical application. However, proresolution phenotypes might conflict with proinflammatory and antibacterial responses. Therefore, therapeutic targeting of AMs at vulnerable time points over the course of infectious lung injury might harbor the risk of serious side effects, such as loss of antibacterial host defense capacity. Thus, the identification of key signaling hubs that determine functional fate decisions in AMs is of the utmost importance to harness their therapeutic potential.
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Affiliation(s)
- Christina Malainou
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, Justus Liebig University Giessen, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health, Justus Liebig University Giessen, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute, Giessen, Germany
- German Center for Lung Research (DZL), Heidelberg, Germany
| | - Shifaa M. Abdin
- German Center for Lung Research (DZL), Heidelberg, Germany
- Department of Pediatric Pneumology, Allergology and Neonatology and
- REBIRTH Center for Translational and Regenerative Medicine, Hannover Medical School, Hannover, Germany
| | - Nico Lachmann
- German Center for Lung Research (DZL), Heidelberg, Germany
- Department of Pediatric Pneumology, Allergology and Neonatology and
- REBIRTH Center for Translational and Regenerative Medicine, Hannover Medical School, Hannover, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany
- RESIST (Resolving Infection Susceptibility), Cluster of Excellence, Hannover Medical School, Hannover, Germany
| | - Ulrich Matt
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, Justus Liebig University Giessen, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health, Justus Liebig University Giessen, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute, Giessen, Germany
- German Center for Lung Research (DZL), Heidelberg, Germany
| | - Susanne Herold
- Department of Internal Medicine V, Universities of Giessen and Marburg Lung Center, Justus Liebig University Giessen, Member of the German Center for Lung Research (DZL), Giessen, Germany
- Institute for Lung Health, Justus Liebig University Giessen, Giessen, Germany
- Excellence Cluster Cardio-Pulmonary Institute, Giessen, Germany
- German Center for Lung Research (DZL), Heidelberg, Germany
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23
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Chang MY, Brune JE, Black M, Altemeier WA, Frevert CW. Multicompartmental analysis of the murine pulmonary immune response by spectral flow cytometry. Am J Physiol Lung Cell Mol Physiol 2023; 325:L518-L535. [PMID: 37581225 PMCID: PMC10639014 DOI: 10.1152/ajplung.00317.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 07/12/2023] [Accepted: 07/24/2023] [Indexed: 08/16/2023] Open
Abstract
Studies of pulmonary inflammation require unique considerations due to the complex structure and composition of the lungs. The lungs have multiple compartments and diverse immune cell populations, with inherently high autofluorescence, and are involved in the host response to pulmonary pathogens. We describe a protocol that accounts for these factors through a novel combination of methodologies-in vivo compartmental analysis and spectral flow cytometry with a broad panel of antibodies. In vivo compartmental analysis enables the precise localization of immune cells within the marginated vasculature, lung interstitium, nonlavageable airways, and lavageable airways of the lungs, as well as the pulmonary lymph nodes. Spectral flow cytometry with a broad panel of antibodies supports an unbiased exploratory approach to investigating diverse immune cell populations during pulmonary inflammation. Most importantly, spectral flow uses cellular autofluorescence to aid in the resolution and identification of immune cell populations. This methodology enables the acquisition of high-quality data compatible with informed gating and dimensionality reduction algorithms. In addition, our protocol emphasizes considerations for compartmentalization of the inflammatory response, spectral flow panel design, and autofluorescence spectra analysis. These methodologies are critical for increasing the rigor of pulmonary research. We apply this protocol for the precise characterization and localization of leukocytes in the pulmonary host response to influenza A virus in C57BL/6J mice. In particular, we demonstrate that this protocol improves the quantification and localization of alveolar macrophages within the airways. The methodology is modifiable and expandable to allow for further characterization of leukocyte populations of special interest.NEW & NOTEWORTHY We describe a novel combination of methodologies that incorporates dual in vivo compartmental analysis using intravascular and intratracheal CD45 labeling, a broad panel of antibodies for identifying lymphoid and nonlymphoid cells, and spectral flow cytometry that uses cellular autofluorescence to aid in resolving and identifying immune cell populations. This methodology allows precise localization of immune cells in the lavageable airways, nonlavageable airways, interstitial lung tissue, and marginated in the lung vasculature.
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Affiliation(s)
- Mary Y Chang
- Department of Comparative Medicine, University of Washington, Seattle, Washington, United States
- Center for Lung Biology, University of Washington at South Lake Union, Seattle, Washington, United States
| | - Jourdan E Brune
- Department of Comparative Medicine, University of Washington, Seattle, Washington, United States
- Center for Lung Biology, University of Washington at South Lake Union, Seattle, Washington, United States
| | - Michele Black
- Department of Immunology, University of Washington, Seattle, Washington, United States
| | - William A Altemeier
- Center for Lung Biology, University of Washington at South Lake Union, Seattle, Washington, United States
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, Washington, United States
| | - Charles W Frevert
- Department of Comparative Medicine, University of Washington, Seattle, Washington, United States
- Center for Lung Biology, University of Washington at South Lake Union, Seattle, Washington, United States
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, Washington, United States
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24
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Zhang G, Shi L, Li J, Wang S, Ren J, Wang D, Hu P, Wang Y, Li C. Antler stem cell exosomes alleviate pulmonary fibrosis via inhibiting recruitment of monocyte macrophage, rather than polarization of M2 macrophages in mice. Cell Death Discov 2023; 9:359. [PMID: 37770458 PMCID: PMC10539297 DOI: 10.1038/s41420-023-01659-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/11/2023] [Accepted: 09/19/2023] [Indexed: 09/30/2023] Open
Abstract
Pulmonary fibrosis (PF), a chronic interstitial lung disease, is characterized by over-abundant deposition of extracellular matrix consisting mainly of collagen I. In previous studies, we demonstrated that deer antler stem cells (AnSCs), a novel type of adult stem cell, are capable of significantly down-regulating collagen formation in different organs and tissues and speculated that they could effectively treat PF via reducing collagen deposition in the lung tissue. In the present study, we found that administration of AnSCs improved the survival rate of PF mice and reduced lung fibrosis, collagen deposition and myofibroblast differentiation. The effects of AnSC treatment were significantly better than the positive control (adipose-derived stem cells). Interestingly, AnSC-Exos were almost equally effective as AnSCs in treating PF, suggesting that the effects of AnSCs on reduction of PF may be mainly through a paracrine mechanism. Further, AnSC-Exos reduced the number of M2 macrophages, a type of macrophage that secrets pro-fibrotic factors to accelerate fibrotic progression, in the lung tissues. In vitro experiments showed that the effects of AnSC-Exos on macrophage modulation were likely achieved via inhibition of the recruitment of circulating monocyte-derived macrophages (reducing the number of macrophages), rather than via inhibition of M2 polarization of macrophages. Inhibition of macrophage recruitment by AnSCs may be achieved indirectly via inhibiting CCL7 expression in fibroblasts; both let-7b and let-7a were highly enriched in AnSC-Exos and may play a critical role in the inhibition of CCL7 expression of fibroblasts. Collectively, the use of antler stem cells or their exosomes opens up a novel strategy for PF treatment in the clinical setting.
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Affiliation(s)
- Guokun Zhang
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, 130600, Changchun, China
| | - Liyan Shi
- China-Japan Union Hospital, Jilin University, 130033, Changchun, China
| | - Jiping Li
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, 130600, Changchun, China
| | - Shengnan Wang
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, 130600, Changchun, China
| | - Jing Ren
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, 130600, Changchun, China
- College of Chinese Medicinal Materials, Jilin Agricultural University, 130118, Changchun, China
| | - Dongxu Wang
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, 130600, Changchun, China
| | - Pengfei Hu
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, 130600, Changchun, China
| | - Yimin Wang
- China-Japan Union Hospital, Jilin University, 130033, Changchun, China
| | - Chunyi Li
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, 130600, Changchun, China.
- College of Chinese Medicinal Materials, Jilin Agricultural University, 130118, Changchun, China.
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25
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Mthunzi L, Rowan SC, Kostyunina DS, Baugh JA, Knaus UG, McLoughlin P. Gremlin 1 is required for macrophage M2 polarization. Am J Physiol Lung Cell Mol Physiol 2023; 325:L270-L276. [PMID: 37401390 DOI: 10.1152/ajplung.00163.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 07/05/2023] Open
Abstract
Pro-proliferative, M2-like polarization of macrophages is a critical step in the development of fibrosis and remodeling in chronic lung diseases such as pulmonary fibrosis and pulmonary hypertension. Macrophages in healthy and diseased lungs express gremlin 1 (Grem1), a secreted glycoprotein that acts in both paracrine and autocrine manners to modulate cellular function. Increased Grem1 expression plays a central role in pulmonary fibrosis and remodeling, however, the role of Grem1 in M2-like polarization of macrophages has not previously been explored. The results reported here show that recombinant Grem1 potentiated M2-like polarization of mouse macrophages and bone marrow-derived macrophages (BMDMs) in response to the Th2 cytokines IL4 and IL13. Genetic depletion of Grem1 in BMDMs inhibited M2 polarization while exogenous gremlin 1 could partially rescue this effect. Taken together, these findings reveal that gremlin 1 is required for M2-like polarization of macrophages.NEW & NOTEWORTHY We show here that gremlin 1 potentiated M2 polarization of mouse bone marrow-derived macrophages (BMDMs) in response to the Th2 cytokines IL4 and IL13. Genetic depletion of Grem1 in BMDMs inhibited M2 polarization while exogenous gremlin 1 partially rescued this effect. Taken together, these findings reveal a previously unknown requirement for gremlin 1 in M2 polarization of macrophages and suggest a novel cellular mechanism promoting fibrosis and remodeling in lung diseases.
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Affiliation(s)
- Liberty Mthunzi
- School of Medicine, Health Sciences Centre, University College Dublin, Dublin, Ireland
| | - Simon C Rowan
- School of Medicine, Health Sciences Centre, University College Dublin, Dublin, Ireland
| | - Daria S Kostyunina
- School of Medicine, Health Sciences Centre, University College Dublin, Dublin, Ireland
| | - John A Baugh
- School of Medicine, Health Sciences Centre, University College Dublin, Dublin, Ireland
| | - Ulla G Knaus
- School of Medicine, Health Sciences Centre, University College Dublin, Dublin, Ireland
| | - Paul McLoughlin
- School of Medicine, Health Sciences Centre, University College Dublin, Dublin, Ireland
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26
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Lisk C, Cendali F, Pak DI, Swindle D, Hassell K, Nuss R, George G, Davizon-Castillo P, Buehler PW, D’Alessandro A, Irwin DC. Moderate hypoxia induces metabolic divergence in circulating monocytes and tissue resident macrophages from Berkeley sickle cell anemia mice. Front Med (Lausanne) 2023; 10:1149005. [PMID: 37502360 PMCID: PMC10370499 DOI: 10.3389/fmed.2023.1149005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 06/09/2023] [Indexed: 07/29/2023] Open
Abstract
Introduction Human and murine sickle cell disease (SCD) associated pulmonary hypertension (PH) is defined by hemolysis, nitric oxide depletion, inflammation, and thrombosis. Further, hemoglobin (Hb), heme, and iron accumulation are consistently observed in pulmonary adventitial macrophages at autopsy and in hypoxia driven rodent models of SCD, which show distribution of ferric and ferrous Hb as well as HO-1 and ferritin heavy chain. The anatomic localization of these macrophages is consistent with areas of significant vascular remodeling. However, their contributions toward progressive disease may include unique, but also common mechanisms, that overlap with idiopathic and other forms of pulmonary hypertension. These processes likely extend to the vasculature of other organs that are consistently impaired in advanced SCD. Methods To date, limited information is available on the metabolism of macrophages or monocytes isolated from lung, spleen, and peripheral blood in humans or murine models of SCD. Results Here we hypothesize that metabolism of macrophages and monocytes isolated from this triad of tissue differs between Berkley SCD mice exposed for ten weeks to moderate hypobaric hypoxia (simulated 8,000 ft, 15.4% O2) or normoxia (Denver altitude, 5000 ft) with normoxia exposed wild type mice evaluated as controls. Discussion This study represents an initial set of data that describes the metabolism in monocytes and macrophages isolated from moderately hypoxic SCD mice peripheral lung, spleen, and blood mononuclear cells.
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Affiliation(s)
- Christina Lisk
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver–Anschutz Medical Campus, Aurora, CO, United States
| | - Francesca Cendali
- Department of Biochemistry and Molecular Genetics, Graduate School, University of Colorado, Anschutz, Medical Campus, Aurora, CO, United States
| | - David I. Pak
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver–Anschutz Medical Campus, Aurora, CO, United States
| | - Delaney Swindle
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver–Anschutz Medical Campus, Aurora, CO, United States
| | - Kathryn Hassell
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, United States
| | - Rachelle Nuss
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, United States
| | - Gemlyn George
- Division of Hematology Colorado Sickle Cell Treatment and Research Center, School of Medicine, Anschutz Medical Campus, University of Colorado-Denver School of Medicine, Aurora, CO, United States
| | - Pavel Davizon-Castillo
- Department of Pediatrics, Hemophilia and Thrombosis Center, University of Colorado Anschutz, Medical Campus, Aurora, CO, United States
| | - Paul W. Buehler
- The Center for Blood Oxygen Transport, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, United States
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Angelo D’Alessandro
- Department of Biochemistry and Molecular Genetics, Graduate School, University of Colorado, Anschutz, Medical Campus, Aurora, CO, United States
| | - David C. Irwin
- Cardiovascular and Pulmonary Research Laboratory, Department of Medicine, University of Colorado Denver–Anschutz Medical Campus, Aurora, CO, United States
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27
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Hou F, Wang H, Zheng K, Yang W, Xiao K, Rong Z, Xiao J, Li J, Cheng B, Tang L, Xie L. Distinct Transcriptional and Functional Differences of Lung Resident and Monocyte-Derived Alveolar Macrophages During the Recovery Period of Acute Lung Injury. Immune Netw 2023; 23:e24. [PMID: 37416929 PMCID: PMC10320419 DOI: 10.4110/in.2023.23.e24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/18/2023] [Accepted: 02/27/2023] [Indexed: 07/08/2023] Open
Abstract
In acute lung injury, two subsets of lung macrophages exist in the alveoli: tissue-resident alveolar macrophages (AMs) and monocyte-derived alveolar macrophages (MDMs). However, it is unclear whether these 2 subsets of macrophages have different functions and characteristics during the recovery phase. RNA-sequencing of AMs and MDMs from the recovery period of LPS-induced lung injury mice revealed their differences in proliferation, cell death, phagocytosis, inflammation and tissue repair. Using flow cytometry, we found that AMs showed a higher ability to proliferate, whereas MDMs expressed a larger amount of cell death. We also compared the ability of phagocytosing apoptotic cells and activating adaptive immunity and found that AMs have a stronger ability to phagocytose, while MDMs are the cells that activate lymphocytes during the resolving phase. By testing surface markers, we found that MDMs were more prone to the M1 phenotype, but expressed a higher level of pro-repairing genes. Finally, analysis of a publicly available set of single-cell RNA-sequencing data on bronchoalveolar lavage cells from patients with SARS-CoV-2 infection validated the double-sided role of MDMs. Blockade of inflammatory MDM recruitment using CCR2-/- mice effectively attenuates lung injury. Therefore, AMs and MDMs exhibited large differences during recovery. AMs are long-lived M2-like tissue-resident macrophages that have a strong ability to proliferate and phagocytose. MDMs are a paradoxical group of macrophages that promote the repair of tissue damage despite being strongly pro-inflammatory early in infection, and they may undergo cell death as inflammation fades. Preventing the massive recruitment of inflammatory MDMs or promoting their transition to pro-repairing phenotype may be a new direction for the treatment of acute lung injury.
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Affiliation(s)
- Fei Hou
- College of Pulmonary & Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Huan Wang
- State Key Laboratory of Proteomics, National Center for Protein Sciences, Beijing Proteome Research Center, Beijing Institute of Lifeomics, Beijing, China
| | - Kun Zheng
- State Key Laboratory of Proteomics, National Center for Protein Sciences, Beijing Proteome Research Center, Beijing Institute of Lifeomics, Beijing, China
| | - Wenting Yang
- State Key Laboratory of Proteomics, National Center for Protein Sciences, Beijing Proteome Research Center, Beijing Institute of Lifeomics, Beijing, China
| | - Kun Xiao
- College of Pulmonary & Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zihan Rong
- College of Life Sciences, Hebei University, Baoding, China
| | - Junjie Xiao
- College of Pulmonary & Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Jing Li
- State Key Laboratory of Proteomics, National Center for Protein Sciences, Beijing Proteome Research Center, Beijing Institute of Lifeomics, Beijing, China
| | - Baihe Cheng
- State Key Laboratory of Proteomics, National Center for Protein Sciences, Beijing Proteome Research Center, Beijing Institute of Lifeomics, Beijing, China
| | - Li Tang
- State Key Laboratory of Proteomics, National Center for Protein Sciences, Beijing Proteome Research Center, Beijing Institute of Lifeomics, Beijing, China
| | - Lixin Xie
- College of Pulmonary & Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, Beijing, China
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28
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Poor TA, Morales-Nebreda L. Alveolar Macrophages during Inflammation: A Balancing Act. Am J Respir Cell Mol Biol 2023; 68:608-609. [PMID: 37022093 PMCID: PMC10257065 DOI: 10.1165/rcmb.2023-0098ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
Affiliation(s)
- Taylor A Poor
- Department of Medicine Northwestern University Feinberg School of Medicine Chicago, Illinois
| | - Luisa Morales-Nebreda
- Department of Medicine Northwestern University Feinberg School of Medicine Chicago, Illinois
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29
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Han W, Tanjore H, Liu Y, Hunt RP, Gutor SS, Serezani APM, Blackwell TS. Identification and Characterization of Alveolar and Recruited Lung Macrophages during Acute Lung Inflammation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:1827-1836. [PMID: 37042701 PMCID: PMC10192112 DOI: 10.4049/jimmunol.2200694] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 03/20/2023] [Indexed: 04/13/2023]
Abstract
To precisely identify mouse resident alveolar macrophages (AMs) and bone marrow (BM)-derived macrophages, we developed a technique to separately label AMs and BM-derived macrophages with a fluorescent lipophilic dye followed by FACS. We showed that this technique overcomes issues in cell identification related to dynamic shifts in cell surface markers that occurs during lung inflammation. We then used this approach to track macrophage subsets at different time points after intratracheal (i.t.) instillation of Escherichia coli LPS. By isolating BM-derived macrophages and AMs, we demonstrated that BM-derived macrophages were enriched in expression of genes in signal transduction and immune system activation pathways whereas resident AMs were enriched in cellular processes, such as lysosome/phagosome pathways, efferocytosis, and metabolic pathways related to fatty acids and peroxisomes. Taken together, these data indicate that more accurate identification of macrophage origin can result in improved understanding of differential phenotypes and functions between AMs and BM-derived macrophages in the lungs.
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Affiliation(s)
- Wei Han
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Harikrishna Tanjore
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Yang Liu
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Raphael P Hunt
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Sergey S Gutor
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Ana P M Serezani
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Timothy S Blackwell
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN
- Department of Veterans Affairs Medical Center, Nashville, TN
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30
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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: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [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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31
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Tighe RM, Birukova A, Malakhau Y, Kobayashi Y, Vose AT, Chandramohan V, Cyphert-Daly JM, Cumming RI, Kirshner HF, Tata PR, Ingram JL, Gunn MD, Que LG, Yu YRA. Allergic Asthma Responses Are Dependent on Macrophage Ontogeny. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.16.528861. [PMID: 36824904 PMCID: PMC9949163 DOI: 10.1101/2023.02.16.528861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
The ontogenetic composition of tissue-resident macrophages following injury, environmental exposure, or experimental depletion can be altered upon re-establishment of homeostasis. However, the impact of altered resident macrophage ontogenetic milieu on subsequent immune responses is poorly understood. Hence, we assessed the effect of macrophage ontogeny alteration following return to homeostasis on subsequent allergic airway responses to house dust mites (HDM). Using lineage tracing, we confirmed alveolar and interstitial macrophage ontogeny and their replacement by bone marrow-derived macrophages following LPS exposure. This alteration in macrophage ontogenetic milieu reduced allergic airway responses to HDM challenge. In addition, we defined a distinct population of resident-derived interstitial macrophages expressing allergic airway disease genes, located adjacent to terminal bronchi, and reduced by prior LPS exposure. These findings support that the ontogenetic milieu of pulmonary macrophages is a central factor in allergic airway responses and has implications for how prior environmental exposures impact subsequent immune responses and the development of allergy.
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32
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Redente EF, Kopf KW, Bahadur AN, Robichaud A, Lundblad LK, McDonald LT. Application-specific approaches to MicroCT for evaluation of mouse models of pulmonary disease. PLoS One 2023; 18:e0281452. [PMID: 36757935 PMCID: PMC9910664 DOI: 10.1371/journal.pone.0281452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 01/23/2023] [Indexed: 02/10/2023] Open
Abstract
The advent of micro-computed tomography (microCT) has provided significant advancement in our ability to generate clinically relevant assessments of lung health and disease in small animal models. As microCT use to generate outcomes analysis in pulmonary preclinical models has increased there have been substantial improvements in image quality and resolution, and data analysis software. However, there are limited published methods for standardized imaging and automated analysis available for investigators. Manual quantitative analysis of microCT images is complicated by the presence of inflammation and parenchymal disease. To improve the efficiency and limit user-associated bias, we have developed an automated pulmonary air and tissue segmentation (PATS) task list to segment lung air volume and lung tissue volume for quantitative analysis. We demonstrate the effective use of the PATS task list using four distinct methods for imaging, 1) in vivo respiration controlled scanning using a flexiVent, 2) longitudinal breath-gated in vivo scanning in resolving and non-resolving pulmonary disease initiated by lipopolysaccharide-, bleomycin-, and silica-exposure, 3) post-mortem imaging, and 4) ex vivo high-resolution scanning. The accuracy of the PATS task list was compared to manual segmentation. The use of these imaging techniques and automated quantification methodology across multiple models of lung injury and fibrosis demonstrates the broad applicability and adaptability of microCT to various lung diseases and small animal models and presents a significant advance in efficiency and standardization of preclinical microCT imaging and analysis for the field of pulmonary research.
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Affiliation(s)
- Elizabeth F. Redente
- Department of Pediatrics, National Jewish Health, Denver, Colorado, United States of America
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
- * E-mail:
| | - Katrina W. Kopf
- Department of Academic Affairs, National Jewish Health, Denver, Colorado, United States of America
| | - Ali N. Bahadur
- Bruker BioSpin Corporation, Billerica, Massachusetts, United States of America
| | | | | | - Lindsay T. McDonald
- Ralph H. Johnson VA Medical Center, Charleston, South Carolina, United States of America
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33
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Reyfman PA, Malsin ES, Khuder B, Joshi N, Gadhvi G, Flozak AS, Carns MA, Aren K, Goldberg IA, Kim S, Alexander M, Sporn PHS, Misharin AV, Budinger GS, Lam AP, Hinchcliff M, Gottardi CJ, Winter DR. A Novel MIP-1-Expressing Macrophage Subtype in BAL Fluid from Healthy Volunteers. Am J Respir Cell Mol Biol 2023; 68:176-185. [PMID: 36174229 PMCID: PMC9986555 DOI: 10.1165/rcmb.2021-0123oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 09/29/2022] [Indexed: 02/03/2023] Open
Abstract
Tissue availability remains an important limitation of single-cell genomic technologies for investigating cellular heterogeneity in human health and disease. BAL represents a minimally invasive approach to assessing an individual's lung cellular environment for diagnosis and research. However, the lack of high-quality, healthy lung reference data is a major obstacle to using single-cell approaches to study a plethora of lung diseases. Here, we performed single-cell RNA sequencing on over 40,000 cells isolated from the BAL of four healthy volunteers. Of the six cell types or lineages we identified, macrophages were consistently the most numerous across individuals. Our analysis confirmed the expression of marker genes defining cell types despite background signals because of the ambient RNA found in many single-cell studies. We assessed the variability of gene expression across macrophages and defined a distinct subpopulation of cells expressing a set of genes associated with Macrophage Inflammatory Protein 1 (MIP-1). RNA in situ hybridization and reanalysis of published lung single-cell data validated the presence of this macrophage subpopulation. Thus, our study characterizes lung macrophage heterogeneity in healthy individuals and provides a valuable resource for future studies to understand the lung environment in health and disease.
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Affiliation(s)
- Paul A. Reyfman
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Elizabeth S. Malsin
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Basil Khuder
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Nikita Joshi
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Gaurav Gadhvi
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Annette S. Flozak
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Mary A. Carns
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Kathleen Aren
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Isaac A. Goldberg
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Seokjo Kim
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Michael Alexander
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Peter H. S. Sporn
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Alexander V. Misharin
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - G.R. Scott Budinger
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Anna P. Lam
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Monique Hinchcliff
- Department of Internal Medicine, Section of Rheumatology, Allergy, and Immunology, Yale School of Medicine, New Haven, Connecticut
| | - Cara J. Gottardi
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
| | - Deborah R. Winter
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois and
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34
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Zhang Z, Cao Z, Hou L, Song M, Zhou Y, Chen Y, Hu H, Hou Y, Liu Y, Li B, Song X, Ge W, Li B, Jiang X, Yang J, Song D, Zhang X, Pang J, Zhang T, Zhang H, Yang P, Wang J, Wang C. Adenovirus-mediated Overexpression of FcγRIIB Attenuates Pulmonary Inflammation and Fibrosis. Am J Respir Cell Mol Biol 2023; 68:213-227. [PMID: 36227848 DOI: 10.1165/rcmb.2022-0056oc] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Progressive fibrosing interstitial lung diseases (PF-ILDs) result in high mortality and lack effective therapies. The pathogenesis of PF-ILDs involves macrophages driving inflammation and irreversible fibrosis. Fc-γ receptors (FcγRs) regulate macrophages and inflammation, but their roles in PF-ILDs remain unclear. We characterized the expression of FcγRs and found upregulated FcγRIIB in human and mouse lungs after exposure to silica. FcγRIIB deficiency aggravated lung dysfunction, inflammation, and fibrosis in silica-exposed mice. Using single-cell transcriptomics and in vitro experiments, FcγRIIB was found in alveolar macrophages, where it regulated the expression of fibrosis-related genes Spp1 and Ctss. In mice with macrophage-specific overexpression of FcγRIIB and in mice treated with adenovirus by intratracheal instillation to upregulate FcγRIIB, silica-induced functional and histological changes were ameliorated. Our data from three genetic models and a therapeutic model suggest that FcγRIIB plays a protective role that can be enhanced by adenoviral overexpression, representing a potential therapeutic strategy for PF-ILDs.
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Affiliation(s)
- Zhe Zhang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China.,Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.,National Health Commission Key Laboratory of Pneumoconiosis, Taiyuan, China
| | | | - Lin Hou
- Department of Physiology and
| | - Meiyue Song
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yitian Zhou
- Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yiling Chen
- Department of Physiology and.,Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiao tong University, Xi'an, China; and
| | - Huiyuan Hu
- Department of Physiology and.,Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiao tong University, Xi'an, China; and
| | - Yangfeng Hou
- Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | | | - Bolun Li
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Xiaomin Song
- Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Weipeng Ge
- Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Baicun Li
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | | | | | - Dingyun Song
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Xinri Zhang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China.,National Health Commission Key Laboratory of Pneumoconiosis, Taiyuan, China
| | - Junling Pang
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Tiantian Zhang
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | | | | | - Jing Wang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Chen Wang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China.,Department of Physiology and.,National Health Commission Key Laboratory of Pneumoconiosis, Taiyuan, China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
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35
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Interstitial Macrophages Lead Early Stages of Bleomycin-Induced Lung Fibrosis and Induce Fibroblasts Activation. Cells 2023; 12:cells12030402. [PMID: 36766744 PMCID: PMC9913327 DOI: 10.3390/cells12030402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/20/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023] Open
Abstract
A progressive fibrosing phenotype is critical in several lung diseases. It is irreversible and associated with early patient mortality. Growing evidence has revealed pulmonary macrophages' role as modulators of the fibrotic processes. The proportion, phenotype, and function of alveolar (AM) and interstitial macrophages (IM) at the early stages of bleomycin-induced pulmonary fibrosis have not been clearly described. In this way, our study aimed to characterize these macrophage populations and investigate the effect on fibroblast activation. C57BL/6 mice were intratracheally injected with bleomycin and were sacrificed at day 3, 5, and 7 for the performance of flow cytometry and fluorescent-activated cell sorting analysis for protein and gene expression quantification. After bleomycin administration, the proportion of IM was significantly higher than that of AM, which showed a decay during the inflammatory phase, and peaked at day 7. At day 7 of the inflammatory phase, AM started shifting their phenotype from M1-like towards M2, while IM showed a M2-like phenotype. Conditioned medium derived from IM sorted at day 7 induced fibroblast activation and differentiation in myofibroblasts in vitro. Our findings indicate that IM are the largest macrophage population at the early stages of experimental pulmonary fibrosis and are secreted mediators able to activate fibroblasts, pointing to macrophage modulation as a potential therapeutic strategy to restrain progressive fibrosing lung disorders.
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36
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Bosteels C, Van Damme KFA, De Leeuw E, Declercq J, Maes B, Bosteels V, Hoste L, Naesens L, Debeuf N, Deckers J, Cole B, Pardons M, Weiskopf D, Sette A, Weygaerde YV, Malfait T, Vandecasteele SJ, Demedts IK, Slabbynck H, Allard S, Depuydt P, Van Braeckel E, De Clercq J, Martens L, Dupont S, Seurinck R, Vandamme N, Haerynck F, Roychowdhury DF, Vandekerckhove L, Guilliams M, Tavernier SJ, Lambrecht BN. Loss of GM-CSF-dependent instruction of alveolar macrophages in COVID-19 provides a rationale for inhaled GM-CSF treatment. Cell Rep Med 2022; 3:100833. [PMID: 36459994 PMCID: PMC9663750 DOI: 10.1016/j.xcrm.2022.100833] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 07/12/2022] [Accepted: 11/08/2022] [Indexed: 11/17/2022]
Abstract
GM-CSF promotes myelopoiesis and inflammation, and GM-CSF blockade is being evaluated as a treatment for COVID-19-associated hyperinflammation. Alveolar GM-CSF is, however, required for monocytes to differentiate into alveolar macrophages (AMs) that control alveolar homeostasis. By mapping cross-species AM development to clinical lung samples, we discovered that COVID-19 is marked by defective GM-CSF-dependent AM instruction and accumulation of pro-inflammatory macrophages. In a multi-center, open-label RCT in 81 non-ventilated COVID-19 patients with respiratory failure, we found that inhalation of rhu-GM-CSF did not improve mean oxygenation parameters compared with standard treatment. However, more patients on GM-CSF had a clinical response, and GM-CSF inhalation induced higher numbers of virus-specific CD8 effector lymphocytes and class-switched B cells, without exacerbating systemic hyperinflammation. This translational proof-of-concept study provides a rationale for further testing of inhaled GM-CSF as a non-invasive treatment to improve alveolar gas exchange and simultaneously boost antiviral immunity in COVID-19. This study is registered at ClinicalTrials.gov (NCT04326920) and EudraCT (2020-001254-22).
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Affiliation(s)
- Cedric Bosteels
- Laboratory of Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Karel F A Van Damme
- Laboratory of Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Elisabeth De Leeuw
- Laboratory of Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Jozefien Declercq
- Laboratory of Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Bastiaan Maes
- Laboratory of Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Victor Bosteels
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium; Laboratory of ER Stress and Inflammation, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium
| | - Levi Hoste
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Primary Immunodeficiency Research Lab, Faculty of Medicine and Health Sciences, Ghent University, Ghent 9000, Belgium
| | - Leslie Naesens
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Primary Immunodeficiency Research Lab, Faculty of Medicine and Health Sciences, Ghent University, Ghent 9000, Belgium
| | - Nincy Debeuf
- Laboratory of Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Julie Deckers
- Laboratory of Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Basiel Cole
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
| | - Marion Pardons
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
| | - Daniela Weiskopf
- Center for Autoimmunity and Inflammation and Center for Infectious Diseases and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Alessandro Sette
- Center for Autoimmunity and Inflammation and Center for Infectious Diseases and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego (UCSD), La Jolla, CA 92037, USA
| | | | - Thomas Malfait
- Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | | | - Ingel K Demedts
- Department of Pulmonary Medicine, AZ Delta General Hospital, 8800 Roeselare, Belgium
| | - Hans Slabbynck
- Department of Pulmonary Medicine, ZNA General Hospital, 2000 Antwerp, Belgium
| | - Sabine Allard
- Department of Internal Medicine, Universitair Ziekenhuis Brussel, 1000 Brussels, Belgium
| | - Pieter Depuydt
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Intensive Care Unit, Ghent University Hospital, 9000 Ghent, Belgium
| | - Eva Van Braeckel
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Jozefien De Clercq
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Infectious Diseases, Ghent University Hospital, 9000 Ghent, Belgium
| | - Liesbet Martens
- Laboratory of Myeloid Cell Biology in Tissue Homeostasis and Regeneration, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9000 Ghent, Belgium
| | - Sam Dupont
- Laboratory of Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium
| | - Ruth Seurinck
- Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium; Department of Applied Mathematics, Computer Science and Statistics, Ghent University, 9000 Ghent, Belgium
| | - Niels Vandamme
- Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium; VIB Single Cell Core, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium
| | - Filomeen Haerynck
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Primary Immunodeficiency Research Lab, Faculty of Medicine and Health Sciences, Ghent University, Ghent 9000, Belgium
| | | | - Linos Vandekerckhove
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Infectious Diseases, Ghent University Hospital, 9000 Ghent, Belgium
| | - Martin Guilliams
- Laboratory of Myeloid Cell Biology in Tissue Homeostasis and Regeneration, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9000 Ghent, Belgium
| | - Simon J Tavernier
- Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Primary Immunodeficiency Research Lab, Faculty of Medicine and Health Sciences, Ghent University, Ghent 9000, Belgium; Department of Biomedical Molecular Biology, Faculty of Sciences, Ghent University, 9000 Ghent, Belgium; Laboratory of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
| | - Bart N Lambrecht
- Laboratory of Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent University, 9000 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium; Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium.
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37
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Öz HH, Cheng EC, Di Pietro C, Tebaldi T, Biancon G, Zeiss C, Zhang PX, Huang PH, Esquibies SS, Britto CJ, Schupp JC, Murray TS, Halene S, Krause DS, Egan ME, Bruscia EM. Recruited monocytes/macrophages drive pulmonary neutrophilic inflammation and irreversible lung tissue remodeling in cystic fibrosis. Cell Rep 2022; 41:111797. [PMID: 36516754 PMCID: PMC9833830 DOI: 10.1016/j.celrep.2022.111797] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 09/30/2022] [Accepted: 11/16/2022] [Indexed: 12/15/2022] Open
Abstract
Persistent neutrophil-dominated lung inflammation contributes to lung damage in cystic fibrosis (CF). However, the mechanisms that drive persistent lung neutrophilia and tissue deterioration in CF are not well characterized. Starting from the observation that, in patients with CF, c-c motif chemokine receptor 2 (CCR2)+ monocytes/macrophages are abundant in the lungs, we investigate the interplay between monocytes/macrophages and neutrophils in perpetuating lung tissue damage in CF. Here we show that CCR2+ monocytes in murine CF lungs drive pathogenic transforming growth factor β (TGF-β) signaling and sustain a pro-inflammatory environment by facilitating neutrophil recruitment. Targeting CCR2 to lower the numbers of monocytes in CF lungs ameliorates neutrophil inflammation and pathogenic TGF-β signaling and prevents lung tissue damage. This study identifies CCR2+ monocytes as a neglected contributor to the pathogenesis of CF lung disease and as a therapeutic target for patients with CF, for whom lung hyperinflammation and tissue damage remain an issue despite recent advances in CF transmembrane conductance regulator (CFTR)-specific therapeutic agents.
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Affiliation(s)
- Hasan H Öz
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | - Ee-Chun Cheng
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | | | - Toma Tebaldi
- Department of Hematology, Yale School of Medicine, New Haven, CT, USA; Yale Stem Cell Center, Yale School of Medicine, New Haven, CT, USA; Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy
| | - Giulia Biancon
- Department of Hematology, Yale School of Medicine, New Haven, CT, USA; Yale Stem Cell Center, Yale School of Medicine, New Haven, CT, USA
| | - Caroline Zeiss
- Department of Comparative Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Ping-Xia Zhang
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA; Yale Stem Cell Center, Yale School of Medicine, New Haven, CT, USA; Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Pamela H Huang
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | - Sofia S Esquibies
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | - Clemente J Britto
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Jonas C Schupp
- Department of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, CT, USA; Department of Respiratory Medicine, Hannover Medical School and Biomedical Research in End-stage and Obstructive Lung Disease Hannover, German Lung Research Center (DZL), Hannover, Germany
| | - Thomas S Murray
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | - Stephanie Halene
- Department of Hematology, Yale School of Medicine, New Haven, CT, USA; Yale Stem Cell Center, Yale School of Medicine, New Haven, CT, USA
| | - Diane S Krause
- Yale Stem Cell Center, Yale School of Medicine, New Haven, CT, USA; Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT, USA; Department of Pathology, Yale School of Medicine, New Haven, CT, USA
| | - Marie E Egan
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA; Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, CT, USA
| | - Emanuela M Bruscia
- Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA; Yale Stem Cell Center, Yale School of Medicine, New Haven, CT, USA.
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38
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Dang W, Tao Y, Xu X, Zhao H, Zou L, Li Y. The role of lung macrophages in acute respiratory distress syndrome. Inflamm Res 2022; 71:1417-1432. [PMID: 36264361 PMCID: PMC9582389 DOI: 10.1007/s00011-022-01645-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 07/22/2022] [Accepted: 09/14/2022] [Indexed: 11/25/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is an acute and diffuse inflammatory lung injury in a short time, one of the common severe manifestations of the respiratory system that endangers human life and health. As an innate immune cell, macrophages play a key role in the inflammatory response. For a long time, the role of pulmonary macrophages in ARDS has tended to revolve around the polarization of M1/M2. However, with the development of single-cell RNA sequencing, fate mapping, metabolomics, and other new technologies, a deeper understanding of the development process, classification, and function of macrophages in the lung are acquired. Here, we discuss the function of pulmonary macrophages in ARDS from the two dimensions of anatomical location and cell origin and describe the effects of cell metabolism and intercellular interaction on the function of macrophages. Besides, we explore the treatments for targeting macrophages, such as enhancing macrophage phagocytosis, regulating macrophage recruitment, and macrophage death. Considering the differences in responsiveness of different research groups to these treatments and the tremendous dynamic changes in the gene expression of monocyte/macrophage, we discussed the possibility of characterizing the gene expression of monocyte/macrophage as the biomarkers. We hope that this review will provide new insight into pulmonary macrophage function and therapeutic targets of ARDS.
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Affiliation(s)
- Wenpei Dang
- Department of Intensive Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Yiming Tao
- Department of Intensive Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Xinxin Xu
- Department of Intensive Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Hui Zhao
- Department of Intensive Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Lijuan Zou
- Department of Intensive Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Yongsheng Li
- Department of Intensive Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.
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39
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Jin H, Liu Y, Liu X, Khodeiry MM, Lee JK, Lee RK. Hematogenous Macrophages Contribute to Fibrotic Scar Formation After Optic Nerve Crush. Mol Neurobiol 2022; 59:7393-7403. [PMID: 36181661 DOI: 10.1007/s12035-022-03052-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 09/24/2022] [Indexed: 01/18/2023]
Abstract
Although glial scar formation has been extensively studied after optic nerve injury, the existence and characteristics of traumatic optic nerve fibrotic scar formation have not been previously characterized. Recent evidence suggests infiltrating macrophages are involved in pathological processes after optic nerve crush (ONC), but their role in fibrotic scar formation is unknown. Using wild-type and transgenic mouse models with optic nerve crush injury, we show that macrophages infiltrate and associate with fibroblasts in the traumatic optic nerve lesion fibrotic scar. We dissected the role of hematogenous and resident macrophages, labeled with Dil liposomes intravenously administered, and observed that hematogenous macrophages (Dil+ cells) specifically accumulate in the center of traumatic fibrotic scar while Iba-1+ cells reside predominantly at the margins of optic nerve fibrotic scar. Depletion of hematogenous macrophages results in reduced fibroblast density and decreased extracellular matrix deposition within the fibrotic scar area following ONC. However, retinal ganglion cell degeneration and function loss after optic nerve crush remain unaffected after hematogenous macrophage depletion. We present new and previously not characterized evidence that hematogenous macrophages are selectively recruited into the fibrotic core of the optic nerve crush site and critical for this fibrotic scar formation.
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Affiliation(s)
- Huiyi Jin
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Yuan Liu
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Xiangxiang Liu
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Mohamed M Khodeiry
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Jae K Lee
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Richard K Lee
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
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40
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Li X, Kolling FW, Aridgides D, Mellinger D, Ashare A, Jakubzick CV. ScRNA-seq expression of IFI27 and APOC2 identifies four alveolar macrophage superclusters in healthy BALF. Life Sci Alliance 2022; 5:e202201458. [PMID: 35820705 PMCID: PMC9275597 DOI: 10.26508/lsa.202201458] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 06/20/2022] [Accepted: 06/27/2022] [Indexed: 12/15/2022] Open
Abstract
Alveolar macrophages (AMs) reside on the luminal surface of the airways and alveoli, ensuring proper gas exchange by ingesting cellular debris and pathogens, and regulating inflammatory responses. Therefore, understanding the heterogeneity and diverse roles played by AMs, interstitial macrophages, and recruited monocytes is critical for treating airway diseases. We performed single-cell RNA sequencing on 113,213 bronchoalveolar lavage cells from four healthy and three uninflamed cystic fibrosis subjects and identified two MARCKS+LGMN+IMs, FOLR2+SELENOP+ and SPP1+PLA2G7+ IMs, monocyte subtypes, DC1, DC2, migDCs, plasmacytoid DCs, lymphocytes, epithelial cells, and four AM superclusters (families) based on the gene expression of IFI27 and APOC2 These four AM families have at least eight distinct functional members (subclusters) named after their differentially expressed gene(s): IGF1, CCL18, CXCL5, cholesterol, chemokine, metallothionein, interferon, and small-cluster AMs. Interestingly, the chemokine cluster further divides with each subcluster selectively expressing a unique combination of chemokines. One of the most striking observations, besides the heterogeneity, is the conservation of AM family members in relatively equal ratio across all AM superclusters and individuals. Transcriptional data and TotalSeq technology were used to investigate cell surface markers that distinguish resident AMs from recruited monocytes. Last, other AM datasets were projected onto our dataset. Similar AM superclusters and functional subclusters were observed, along with a significant increase in chemokine and IFN AM subclusters in individuals infected with COVID-19. Overall, functional specializations of the AM subclusters suggest that there are highly regulated AM niches with defined programming states, highlighting a clear division of labor.
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Affiliation(s)
- Xin Li
- Department of Microbiology and Immunology, Dartmouth Geisel School of Medicine, Hanover, NH, USA
| | - Fred W Kolling
- Department of Biomedical Data Science, Dartmouth Geisel School of Medicine, Hanover, NH, USA
| | - Daniel Aridgides
- Department of Medicine, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA
| | - Diane Mellinger
- Department of Medicine, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA
| | - Alix Ashare
- Department of Microbiology and Immunology, Dartmouth Geisel School of Medicine, Hanover, NH, USA
- Department of Medicine, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA
| | - Claudia V Jakubzick
- Department of Microbiology and Immunology, Dartmouth Geisel School of Medicine, Hanover, NH, USA
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41
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Marrocco A, Ortiz LA. Role of metabolic reprogramming in pro-inflammatory cytokine secretion from LPS or silica-activated macrophages. Front Immunol 2022; 13:936167. [PMID: 36341426 PMCID: PMC9633986 DOI: 10.3389/fimmu.2022.936167] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 10/07/2022] [Indexed: 11/13/2022] Open
Abstract
In the lungs, macrophages constitute the first line of defense against pathogens and foreign bodies and play a fundamental role in maintaining tissue homeostasis. Activated macrophages show altered immunometabolism and metabolic changes governing immune effector mechanisms, such as cytokine secretion characterizing their classic (M1) or alternative (M2) activation. Lipopolysaccharide (LPS)-stimulated macrophages demonstrate enhanced glycolysis, blocked succinate dehydrogenase (SDH), and increased secretion of interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α). Glycolysis suppression using 2 deoxyglucose in LPS-stimulated macrophages inhibits IL-1β secretion, but not TNF-α, indicating metabolic pathway specificity that determines cytokine production. In contrast to LPS, the nature of the immunometabolic responses induced by non-organic particles, such as silica, in macrophages, its contribution to cytokine specification, and disease pathogenesis are not well understood. Silica-stimulated macrophages activate pattern recognition receptors (PRRs) and NLRP3 inflammasome and release IL-1β, TNF-α, and interferons, which are the key mediators of silicosis pathogenesis. In contrast to bacteria, silica particles cannot be degraded, and the persistent macrophage activation results in an increased NADPH oxidase (Phox) activation and mitochondrial reactive oxygen species (ROS) production, ultimately leading to macrophage death and release of silica particles that perpetuate inflammation. In this manuscript, we reviewed the effects of silica on macrophage mitochondrial respiration and central carbon metabolism determining cytokine specification responsible for the sustained inflammatory responses in the lungs.
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Affiliation(s)
- Antonella Marrocco
- Department of Environmental and Occupational Health, School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Luis A. Ortiz
- Department of Environmental and Occupational Health, School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
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Wang Y, Zheng J, Wang X, Yang P, Zhao D. Alveolar macrophages and airway hyperresponsiveness associated with respiratory syncytial virus infection. Front Immunol 2022; 13:1012048. [PMID: 36341376 PMCID: PMC9630648 DOI: 10.3389/fimmu.2022.1012048] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
Respiratory syncytial virus (RSV) is a ubiquitous pathogen of viral bronchiolitis and pneumonia in children younger than 2 years of age, which is closely associated with recurrent wheezing and airway hyperresponsiveness (AHR). Alveolar macrophages (AMs) located on the surface of the alveoli cavity are the important innate immune barrier in the respiratory tract. AMs are recognized as recruited airspace macrophages (RecAMs) and resident airspace macrophages (RAMs) based on their origins and roaming traits. AMs are polarized in the case of RSV infection, forming two macrophage phenotypes termed as M1-like and M2-like macrophages. Both M1 macrophages and M2 macrophages are involved in the modulation of inflammatory responses, among which M1 macrophages are capable of pro-inflammatory responses and M2 macrophages are capable of anti-proinflammatory responses and repair damaged tissues in the acute and convalescent phases of RSV infection. Polarized AMs affect disease progression through the alteration of immune cell surface phenotypes as well as participate in the regulation of T lymphocyte differentiation and the type of inflammatory response, which are closely associated with long-term AHR. In recent years, some progress have been made in the regulatory mechanism of AM polarization caused by RSV infection, which participates in acute respiratory inflammatory response and mediating AHR in infants. Here we summarized the role of RSV-infection-mediated AM polarization associated with AHR in infants.
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Affiliation(s)
- Yuxin Wang
- Department of Pediatrics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Junwen Zheng
- Department of Pediatrics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xia Wang
- Department of Pediatrics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Pu Yang
- Department of Pediatrics, Zhongnan Hospital of Wuhan University, Wuhan, China
- Children’s Digital Health and Data Center of Wuhan University, Wuhan, China
- *Correspondence: Dongchi Zhao, ; Pu Yang,
| | - Dongchi Zhao
- Department of Pediatrics, Zhongnan Hospital of Wuhan University, Wuhan, China
- Children’s Digital Health and Data Center of Wuhan University, Wuhan, China
- *Correspondence: Dongchi Zhao, ; Pu Yang,
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Haggadone MD, Speth J, Hong HS, Penke LR, Zhang E, Lyssiotis CA, Peters-Golden M. ATP citrate lyase links increases in glycolysis to diminished release of vesicular suppressor of cytokine signaling 3 by alveolar macrophages. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166458. [PMID: 35700791 PMCID: PMC9940702 DOI: 10.1016/j.bbadis.2022.166458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/29/2022] [Accepted: 05/20/2022] [Indexed: 12/14/2022]
Abstract
Extracellular vesicles (EVs) are important vectors for intercellular communication. Lung-resident alveolar macrophages (AMs) tonically secrete EVs containing suppressor of cytokine signaling 3 (SOCS3), a cytosolic protein that promotes homeostasis in the distal lung via its actions in recipient neighboring epithelial cells. AMs are metabolically distinct and exhibit low levels of glycolysis at steady state. To our knowledge, whether cellular metabolism influences the packaging and release of an EV cargo molecule has never been explored in any cellular context. Here, we report that increases in glycolysis following in vitro exposure of AMs to the growth and activating factor granulocyte-macrophage colony-stimulating factor inhibit the release of vesicular SOCS3 by primary AMs. Glycolytically diminished SOCS3 secretion requires export of citrate from the mitochondria to the cytosol and its subsequent conversion to acetyl-CoA by ATP citrate lyase. Our data for the first time implicate perturbations in intracellular metabolites in the regulation of vesicular cargo packaging and secretion.
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Affiliation(s)
- Mikel D Haggadone
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jennifer Speth
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Hanna S Hong
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI 41809, USA; Rogel Cancer Center, University of Michigan, Ann Arbor, MI 41809, USA
| | - Loka R Penke
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Eric Zhang
- Undergraduate Research Opportunity Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - Costas A Lyssiotis
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI 41809, USA; Rogel Cancer Center, University of Michigan, Ann Arbor, MI 41809, USA
| | - Marc Peters-Golden
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
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Li Q, Cheng Y, Zhang Z, Bi Z, Ma X, Wei Y, Wei X. Inhibition of ROCK ameliorates pulmonary fibrosis by suppressing M2 macrophage polarisation through phosphorylation of STAT3. Clin Transl Med 2022; 12:e1036. [PMID: 36178087 PMCID: PMC9523675 DOI: 10.1002/ctm2.1036] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Emerging evidence provides mechanistic insights into the pathogenesis of pulmonary fibrosis (PF), and rare anti-PF therapeutic method has promising effect in its treatment. Rho-associated coiled-coil kinases (ROCK) inhibition significantly ameliorates bleomycin-induced PF and decreases macrophage infiltration, but the mechanism remains unclear. We established bleomycin and radiation-induced PF to identify the activity of WXWH0265, a newly designed unselective ROCK inhibitor in regulating macrophages. METHODS Bleomycin-induced PF was induced by intratracheal instillation and radiation-induced PF was induced by bilateral thoracic irradiation. Histopathological techniques (haematoxylin and eosin, Masson's trichrome and immunohistochemistry) and hydroxyproline were used to evaluate PF severity. Western blot, quantitative real-time reverse transcription-polymerase chain reaction and flow cytometry were performed to explore the underlying mechanisms. Bone marrow-derived macrophages (BMDMs) were used to verify their therapeutic effect. Clodronate liposomes were applied to deplete macrophages and to identify the therapeutic effect of WXWH0265. RESULTS Therapeutic administration of ROCK inhibitor ameliorates bleomycin-induced PF by inhibiting M2 macrophages polarisation. ROCK inhibitor showed no significant anti-fibrotic effect in macrophages-depleted mice. Treatment with WXWH0265 demonstrated superior protection effect in bleomycin-induced PF compared with positive drugs. In radiation-induced PF, ROCK inhibitor effectively ameliorated PF. Fibroblasts co-cultured with supernatant from various M2 macrophages phenotypes revealed that M2 macrophages stimulated by interleukin-4 promoted extracellular matrix production. Polarisation of M2 macrophages was inhibited by ROCK inhibitor treatment in vitro. The p-signal transducer and activator of transcription 3 (STAT3) in lung tissue and BMDMs was significantly decreased in PF in vivo and vitro after treated with ROCK inhibitors. CONCLUSION Inhibiting ROCK could significantly attenuate bleomycin- and radiation-induced PF by regulating the macrophages polarisation via phosphorylation of STAT3. WXWH0265 is a kind of efficient unselective ROCK inhibitor in ameliorating PF. Furthermore, the results provide empirical evidence that ROCK inhibitor, WXWH0265 is a potential drug to prevent the development of PF.
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Affiliation(s)
- Qingfang Li
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China HospitalSichuan UniversityChengduSichuanPR China
| | - Yuan Cheng
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China HospitalSichuan UniversityChengduSichuanPR China
| | - Zhe Zhang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China HospitalSichuan UniversityChengduSichuanPR China
| | - Zhenfei Bi
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China HospitalSichuan UniversityChengduSichuanPR China
| | - Xuelei Ma
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China HospitalSichuan UniversityChengduSichuanPR China
| | - Yuquan Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China HospitalSichuan UniversityChengduSichuanPR China
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China HospitalSichuan UniversityChengduSichuanPR China
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Aegerter H, Lambrecht BN, Jakubzick CV. Biology of lung macrophages in health and disease. Immunity 2022; 55:1564-1580. [PMID: 36103853 DOI: 10.1016/j.immuni.2022.08.010] [Citation(s) in RCA: 185] [Impact Index Per Article: 92.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 12/14/2022]
Abstract
Tissue-resident alveolar and interstitial macrophages and recruited macrophages are critical players in innate immunity and maintenance of lung homeostasis. Until recently, assessing the differential functional contributions of tissue-resident versus recruited macrophages has been challenging because they share overlapping cell surface markers, making it difficult to separate them using conventional methods. This review describes how scRNA-seq and spatial transcriptomics can separate these subpopulations and help unravel the complexity of macrophage biology in homeostasis and disease. First, we provide a guide to identifying and distinguishing lung macrophages from other mononuclear phagocytes in humans and mice. Second, we outline emerging concepts related to the development and function of the various lung macrophages in the alveolar, perivascular, and interstitial niches. Finally, we describe how different tissue states profoundly alter their functions, including acute and chronic lung disease, cancer, and aging.
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Affiliation(s)
- Helena Aegerter
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Bart N Lambrecht
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Department of Pulmonary Medicine, ErasmusMC, Rotterdam, the Netherlands
| | - Claudia V Jakubzick
- Department of Microbiology and Immunology, Dartmouth Geisel School of Medicine, Hanover, NH, USA.
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Martin TR, Zemans RL, Ware LB, Schmidt EP, Riches DWH, Bastarache L, Calfee CS, Desai TJ, Herold S, Hough CL, Looney MR, Matthay MA, Meyer N, Parikh SM, Stevens T, Thompson BT. New Insights into Clinical and Mechanistic Heterogeneity of the Acute Respiratory Distress Syndrome: Summary of the Aspen Lung Conference 2021. Am J Respir Cell Mol Biol 2022; 67:284-308. [PMID: 35679511 PMCID: PMC9447141 DOI: 10.1165/rcmb.2022-0089ws] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/09/2022] [Indexed: 12/15/2022] Open
Abstract
Clinical and molecular heterogeneity are common features of human disease. Understanding the basis for heterogeneity has led to major advances in therapy for many cancers and pulmonary diseases such as cystic fibrosis and asthma. Although heterogeneity of risk factors, disease severity, and outcomes in survivors are common features of the acute respiratory distress syndrome (ARDS), many challenges exist in understanding the clinical and molecular basis for disease heterogeneity and using heterogeneity to tailor therapy for individual patients. This report summarizes the proceedings of the 2021 Aspen Lung Conference, which was organized to review key issues related to understanding clinical and molecular heterogeneity in ARDS. The goals were to review new information about ARDS phenotypes, to explore multicellular and multisystem mechanisms responsible for heterogeneity, and to review how best to account for clinical and molecular heterogeneity in clinical trial design and assessment of outcomes. The report concludes with recommendations for future research to understand the clinical and basic mechanisms underlying heterogeneity in ARDS to advance the development of new treatments for this life-threatening critical illness.
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Affiliation(s)
- Thomas R. Martin
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, Washington
| | - Rachel L. Zemans
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine and Program in Cellular and Molecular Biology, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Lorraine B. Ware
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine and
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Eric P. Schmidt
- Division of Pulmonary Sciences and Critical Care, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - David W. H. Riches
- Division of Pulmonary Sciences and Critical Care, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
- Program in Cell Biology, Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Lisa Bastarache
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Carolyn S. Calfee
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Medicine
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Anesthesia
| | - Tushar J. Desai
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Stem Cell Institute, Stanford University School of Medicine, Stanford, California
| | - Susanne Herold
- Department of Internal Medicine VI and Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany
| | - Catherine L. Hough
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Oregon Health & Science University, Portland, Oregon
| | | | - Michael A. Matthay
- Departments of Medicine and Anesthesia, Cardiovascular Research Institute, University of California San Francisco, San Francisco, California
| | - Nuala Meyer
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Samir M. Parikh
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
- Division of Nephrology, University of Texas Southwestern, Dallas, Texas
| | - Troy Stevens
- Department of Physiology and Cell Biology, College of Medicine, Center for Lung Biology, University of South Alabama, Mobile, Alabama; and
| | - B. Taylor Thompson
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston, Massachusetts
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Liu C, Xiao K, Xie L. Progress in preclinical studies of macrophage autophagy in the regulation of ALI/ARDS. Front Immunol 2022; 13:922702. [PMID: 36059534 PMCID: PMC9433910 DOI: 10.3389/fimmu.2022.922702] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/03/2022] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) is a critical clinical syndrome with high morbidity and mortality that poses a major challenge in critical care medicine. The development of ALI/ARDS involves excessive inflammatory response, and macrophage autophagy plays an important role in regulating the inflammatory response in ALI/ARDS. In this paper, we review the effects of autophagy in regulating macrophage function, discuss the roles of macrophage autophagy in ALI/ARDS, and highlight drugs and other interventions that can modulate macrophage autophagy in ALI/ARDS to improve the understanding of the mechanism of macrophage autophagy in ALI/ARDS and provide new ideas and further research directions for the treatment of ALI/ARDS.
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Affiliation(s)
- Chang Liu
- School of Medicine, Nankai University, Tianjin, China
- College of Pulmonary & Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Kun Xiao
- College of Pulmonary & Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
- *Correspondence: Kun Xiao, ; Lixin Xie,
| | - Lixin Xie
- School of Medicine, Nankai University, Tianjin, China
- College of Pulmonary & Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
- *Correspondence: Kun Xiao, ; Lixin Xie,
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48
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Du L, Zhang J, Zhang X, Li C, Wang Q, Meng G, Kan X, Zhang J, Jia Y. Oxypeucedanin relieves LPS-induced acute lung injury by inhibiting the inflammation and maintaining the integrity of the lung air-blood barrier. Aging (Albany NY) 2022; 14:6626-6641. [PMID: 35985771 PMCID: PMC9467393 DOI: 10.18632/aging.204235] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/21/2022] [Indexed: 11/25/2022]
Abstract
Introduction: Acute lung injury (ALI) is commonly accompanied by a severe inflammatory reaction process, and effectively managing inflammatory reactions is an important therapeutic approach for alleviating ALI. Macrophages play an important role in the inflammatory response, and this role is proinflammatory in the early stages of inflammation and anti-inflammatory in the late stages. Oxypeucedanin is a natural product with a wide range of pharmacological functions. This study aimed to determine the effect of oxypeucedanin on lipopolysaccharide (LPS)-induced ALI. Methods and Results: In this study, the following experiments were performed based on LPS-induced models in vivo and in vitro. Using myeloperoxidase activity measurement, ELISA, qRT-PCR, and Western blotting, we found that oxypeucedanin modulated the activity of myeloperoxidase and decreased the expression levels of inflammatory mediators such as TNF-α, IL-6, IL-1β, MPO, COX-2 and iNOS in LPS-induced inflammation models. Meanwhile, oxypeucedanin inhibited the activation of PI3K/AKT and its downstream NF-κB and MAPK signaling pathways. In addition, oxypeucedanin significantly decreased the pulmonary vascular permeability, which was induced by LPSs, and the enhanced expression of tight junction proteins (Occludin and Claudin 3). Conclusions: In conclusion, this study demonstrated that the anti-inflammatory mechanism of oxypeucedanin is associated with the inhibition of the activation of PI3K/AKT/NF-κB and MAPK signaling pathways and the maintenance of the integrity of the lung air-blood barrier.
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Affiliation(s)
- Li Du
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Jinrong Zhang
- Department of Pathogeny Biology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, China
| | - Xiyue Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Chunyan Li
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Qi Wang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Guangping Meng
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Xingchi Kan
- Department of Theoretic Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Jie Zhang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Yuxi Jia
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, Jilin, China.,Application Demonstration Center of Precision Medicine Molecular Diagnosis, The Second Hospital of Jilin University, Changchun, Jilin, China
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49
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Li F, Piattini F, Pohlmeier L, Feng Q, Rehrauer H, Kopf M. Monocyte-derived alveolar macrophages autonomously determine severe outcome of respiratory viral infection. Sci Immunol 2022; 7:eabj5761. [PMID: 35776802 DOI: 10.1126/sciimmunol.abj5761] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Various lung insults can result in replacement of resident alveolar macrophages (AM) by bone marrow monocyte-derived (BMo)-AM. However, the dynamics of this process and its long-term consequences for respiratory viral infections remain unclear. Using several mouse models and a marker to unambiguously track fetal monocyte-derived (FeMo)-AM and BMo-AM, we established the kinetics and extent of replenishment and their function to recurrent influenza A virus (IAV) infection. A massive loss of FeMo-AM resulted in rapid replenishment by self-renewal of survivors, followed by the generation of BMo-AM. BMo-AM progressively outcompeted FeMo-AM over several months, and this was due to their increased glycolytic and proliferative capacity. The presence of both naïve and experienced BMo-AM conferred severe pathology to IAV infection, which was associated with a proinflammatory phenotype. Furthermore, upon aging of naïve mice, FeMo-AM were gradually replaced by BMo-AM, which contributed to IAV disease severity in a cell-autonomous manner. Together, our results suggest that the origin rather than training of AM determines long-term function to respiratory viral infection and provide an explanation for the increased severity of infection seen in the elderly.
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Affiliation(s)
- Fengqi Li
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland
| | - Federica Piattini
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland
| | - Lea Pohlmeier
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland
| | - Qian Feng
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland
| | - Hubert Rehrauer
- Functional Genomics Center, ETH Zurich and University of Zurich, Zürich, Switzerland
| | - Manfred Kopf
- Institute of Molecular Health Sciences, Department of Biology, ETH Zürich, Zürich, Switzerland
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50
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Qin W, Spek CA, Scicluna BP, van der Poll T, Duitman J. Myeloid DNA methyltransferase3b deficiency aggravates pulmonary fibrosis by enhancing profibrotic macrophage activation. Respir Res 2022; 23:162. [PMID: 35725453 PMCID: PMC9210707 DOI: 10.1186/s12931-022-02088-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 06/09/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive and severe disease characterized by excessive matrix deposition in the lungs. Macrophages play crucial roles in maintaining lung homeostasis but are also central in the pathogenesis of lung diseases like pulmonary fibrosis. Especially, macrophage polarization/activation seems to play a crucial role in pathology and epigenetic reprograming is well-known to regulate macrophage polarization. DNA methylation alterations in IPF lungs have been well documented, but the role of DNA methylation in specific cell types, especially macrophages, is poorly defined. METHODS In order to determine the role of DNA methylation in macrophages during pulmonary fibrosis, we subjected macrophage specific DNA methyltransferase (DNMT)3B, which mediates the de novo DNA methylation, deficient mice to the bleomycin-induced pulmonary fibrosis model. Macrophage polarization and fibrotic parameters were evaluated at 21 days after bleomycin administration. Dnmt3b knockout and wild type bone marrow-derived macrophages were stimulated with either interleukin (IL)4 or transforming growth factor beta 1 (TGFB1) in vitro, after which profibrotic gene expression and DNA methylation at the Arg1 promotor were determined. RESULTS We show that DNMT3B deficiency promotes alternative macrophage polarization induced by IL4 and TGFB1 in vitro and also enhances profibrotic macrophage polarization in the alveolar space during pulmonary fibrosis in vivo. Moreover, myeloid specific deletion of DNMT3B promoted the development of experimental pulmonary fibrosis. CONCLUSIONS In summary, these data suggest that myeloid DNMT3B represses fibrotic macrophage polarization and protects against bleomycin induced pulmonary fibrosis.
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Affiliation(s)
- Wanhai Qin
- Center of Experimental and Molecular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, Room G2-130, 1105AZ, Amsterdam, The Netherlands.
| | - C Arnold Spek
- Center of Experimental and Molecular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, Room G2-130, 1105AZ, Amsterdam, The Netherlands
| | - Brendon P Scicluna
- Center of Experimental and Molecular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, Room G2-130, 1105AZ, Amsterdam, The Netherlands
- Department of Clinical Epidemiology, Biostatistics, and Bioinformatics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Department of Applied Biomedical Science, Faculty of Health Sciences, Mater Dei Hospital, Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Tom van der Poll
- Center of Experimental and Molecular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, Room G2-130, 1105AZ, Amsterdam, The Netherlands
- Division of Infectious Diseases, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - JanWillem Duitman
- Department of Pulmonary Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Infection & Immunity, Inflammatory Diseases, Amsterdam, The Netherlands
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