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Stevens J, Steinmeyer S, Bonfield M, Peterson L, Wang T, Gray J, Lewkowich I, Xu Y, Du Y, Guo M, Wynn JL, Zacharias W, Salomonis N, Miller L, Chougnet C, O’Connor DH, Deshmukh H. The balance between protective and pathogenic immune responses to pneumonia in the neonatal lung is enforced by gut microbiota. Sci Transl Med 2022; 14:eabl3981. [PMID: 35704600 PMCID: PMC10032669 DOI: 10.1126/scitranslmed.abl3981] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Although modern clinical practices such as cesarean sections and perinatal antibiotics have improved infant survival, treatment with broad-spectrum antibiotics alters intestinal microbiota and causes dysbiosis. Infants exposed to perinatal antibiotics have an increased likelihood of life-threatening infections, including pneumonia. Here, we investigated how the gut microbiota sculpt pulmonary immune responses, promoting recovery and resolution of infection in newborn rhesus macaques. Early-life antibiotic exposure interrupted the maturation of intestinal commensal bacteria and disrupted the developmental trajectory of the pulmonary immune system, as assessed by single-cell proteomic and transcriptomic analyses. Early-life antibiotic exposure rendered newborn macaques more susceptible to bacterial pneumonia, concurrent with increases in neutrophil senescence and hyperinflammation, broad inflammatory cytokine signaling, and macrophage dysfunction. This pathogenic reprogramming of pulmonary immunity was further reflected by a hyperinflammatory signature in all pulmonary immune cell subsets coupled with a global loss of tissue-protective, homeostatic pathways in the lungs of dysbiotic newborns. Fecal microbiota transfer was associated with partial correction of the broad immune maladaptations and protection against severe pneumonia. These data demonstrate the importance of intestinal microbiota in programming pulmonary immunity and support the idea that gut microbiota promote the balance between pathways driving tissue repair and inflammatory responses associated with clinical recovery from infection in infants. Our results highlight a potential role for microbial transfer for immune support in these at-risk infants.
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Affiliation(s)
- Joseph Stevens
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Medical Scientist Training Program, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Shelby Steinmeyer
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Madeline Bonfield
- Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Laura Peterson
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Timothy Wang
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Jerilyn Gray
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Ian Lewkowich
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Yan Xu
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Division of Bioinformatics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Yina Du
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Minzhe Guo
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - James L. Wynn
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - William Zacharias
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Nathan Salomonis
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Division of Bioinformatics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Lisa Miller
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, Davis, CA 95616, USA
- California National Primate Research Center, Davis, CA 95616, USA
| | - Claire Chougnet
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Dennis Hartigan O’Connor
- California National Primate Research Center, Davis, CA 95616, USA
- Department of Medical Microbiology and Immunology, University of California, Davis, Davis, CA 95616, USA
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA
| | - Hitesh Deshmukh
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Corresponding author.
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102
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Diao Y, Ding Q, Xu G, Li Y, Li Z, Zhu H, Zhu W, Wang P, Shi Y. Qingfei Litan Decoction Against Acute Lung Injury/Acute Respiratory Distress Syndrome: The Potential Roles of Anti-Inflammatory and Anti-Oxidative Effects. Front Pharmacol 2022; 13:857502. [PMID: 35677439 PMCID: PMC9168533 DOI: 10.3389/fphar.2022.857502] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 05/03/2022] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is an acute respiratory failure syndrome characterized by progressive arterial hypoxemia and dyspnea. Qingfei Litan (QFLT) decoction, as a classic prescription for the treatment of acute respiratory infections, is effective for the treatment of ALI/ARDS. In this study, the compounds, hub targets, and major pathways of QFLT in ALI/ARDS treatment were analyzed using Ultra high performance liquid chromatography coupled with mass spectrometry (UHPLC-MS) and systemic pharmacology strategies. UHPLC-MS identified 47 main components of QFLT. To explore its anti-inflammatory and anti-oxidative mechanisms, gene ontology (Go) analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment and network pharmacological analysis were conducted based on the main 47 components. KEGG enrichment analysis showed that TNF signaling pathway and Toll-like receptor signaling pathway may be the key pathways of ALI/ARDS. We explored the anti-inflammatory and anti-oxidative pharmacological effects of QFLT in treatment of ALI/ARDS in vivo and in vitro. QFLT suppressed the levels of proinflammatory cytokines and alleviated oxidative stress in LPS-challenged mice. In vitro, QFLT decreased the levels of TNF-α, IL-6, IL-1β secreted by LPS-activated macrophages, increased GSH level and decreased the LPS-activated reactive oxygen species (ROS) in lung epithelial A549 cells. This study suggested that QFLT may have anti-inflammatory and anti-oxidative effects on ALI/ARDS, combining in vivo and in vitro experiments with systemic pharmacology, providing a potential therapeutic strategy option.
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Affiliation(s)
- Yirui Diao
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Qi Ding
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.,Shenzhen Research Institute, Beijing University of Chinese Medicine, Shenzhen, China
| | - Gonghao Xu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Yadong Li
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Zhenqiu Li
- Traditional Chinese Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hanping Zhu
- Traditional Chinese Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenxiang Zhu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.,Shenzhen Research Institute, Beijing University of Chinese Medicine, Shenzhen, China
| | - Peng Wang
- Traditional Chinese Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuanyuan Shi
- Shenzhen Research Institute, Beijing University of Chinese Medicine, Shenzhen, China.,School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
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103
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Zou F, Zhuang ZB, Zou SS, Wang B, Zhang ZH. BML-111 alleviates inflammatory response of alveolar epithelial cells via miR-494/Slit2/Robo4 signalling axis to improve acute lung injury. Autoimmunity 2022; 55:318-327. [PMID: 35656971 DOI: 10.1080/08916934.2022.2065671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Fang Zou
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei Province, P.R. China
| | - Zhong-Bao Zhuang
- Department of Pharmacy, Hebei North University, Zhangjiakou, Hebei Province, P.R. China
| | - Shuang-Shuang Zou
- Guangzhou Liwan Stomatological Hospital, Guangzhou, Guangdong Province, P.R. China
| | - Bu Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei Province, P.R. China
| | - Zhi-Hua Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei Province, P.R. China
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104
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Wu X, Yao J, Hu Q, Kang H, Miao Y, Zhu L, Li C, Zhao X, Li J, Wan M, Tang W. Emodin Ameliorates Acute Pancreatitis-Associated Lung Injury Through Inhibiting the Alveolar Macrophages Pyroptosis. Front Pharmacol 2022; 13:873053. [PMID: 35721108 PMCID: PMC9201345 DOI: 10.3389/fphar.2022.873053] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/13/2022] [Indexed: 02/05/2023] Open
Abstract
Objective: To investigate the protective effect of emodin in acute pancreatitis (AP)-associated lung injury and the underlying mechanisms. Methods: NaT-AP model in rats was constructed using 3.5% sodium taurocholate, and CER+LPS-AP model in mice was constructed using caerulein combined with Lipopolysaccharide. Animals were divided randomly into four groups: sham, AP, Ac-YVAD-CMK (caspase-1 specific inhibitor, AYC), and emodin groups. AP-associated lung injury was assessed with H&E staining, inflammatory cytokine levels, and myeloperoxidase activity. Alveolar macrophages (AMs) pyroptosis was evaluated by flow cytometry. In bronchoalveolar lavage fluid, the levels of lactate dehydrogenase and inflammatory cytokines were measured by enzyme-linked immunosorbent assay. Pyroptosis-related protein expressions were detected by Western Blot. Results: Emodin, similar to the positive control AYC, significantly alleviated pancreas and lung damage in rats and mice. Additionally, emodin mitigated the pyroptotic process of AMs by decreasing the level of inflammatory cytokines and lactate dehydrogenase. More importantly, the protein expressions of NLRP3, ASC, Caspase1 p10, GSDMD, and GSDMD-NT in AMs were significantly downregulated after emodin intervention. Conclusion: Emodin has a therapeutic effect on AP-associated lung injury, which may result from the inhibition of NLRP3/Caspase1/GSDMD-mediated AMs pyroptosis signaling pathways.
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Affiliation(s)
- Xiajia Wu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jiaqi Yao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Qian Hu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hongxin Kang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yifan Miao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Lv Zhu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Cong Li
- Research Core Facility, West China Hospital, Sichuan University, Chengdu, China
| | - Xianlin Zhao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Juan Li
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Meihua Wan
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wenfu Tang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
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105
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Mirchandani AS, Jenkins SJ, Bain CC, Sanchez-Garcia MA, Lawson H, Coelho P, Murphy F, Griffith DM, Zhang A, Morrison T, Ly T, Arienti S, Sadiku P, Watts ER, Dickinson RS, Reyes L, Cooper G, Clark S, Lewis D, Kelly V, Spanos C, Musgrave KM, Delaney L, Harper I, Scott J, Parkinson NJ, Rostron AJ, Baillie JK, Clohisey S, Pridans C, Campana L, Lewis PS, Simpson AJ, Dockrell DH, Schwarze J, Hirani N, Ratcliffe PJ, Pugh CW, Kranc K, Forbes SJ, Whyte MKB, Walmsley SR. Hypoxia shapes the immune landscape in lung injury and promotes the persistence of inflammation. Nat Immunol 2022; 23:927-939. [PMID: 35624205 PMCID: PMC9174051 DOI: 10.1038/s41590-022-01216-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 04/18/2022] [Indexed: 12/30/2022]
Abstract
Hypoxemia is a defining feature of acute respiratory distress syndrome (ARDS), an often-fatal complication of pulmonary or systemic inflammation, yet the resulting tissue hypoxia, and its impact on immune responses, is often neglected. In the present study, we have shown that ARDS patients were hypoxemic and monocytopenic within the first 48 h of ventilation. Monocytopenia was also observed in mouse models of hypoxic acute lung injury, in which hypoxemia drove the suppression of type I interferon signaling in the bone marrow. This impaired monopoiesis resulted in reduced accumulation of monocyte-derived macrophages and enhanced neutrophil-mediated inflammation in the lung. Administration of colony-stimulating factor 1 in mice with hypoxic lung injury rescued the monocytopenia, altered the phenotype of circulating monocytes, increased monocyte-derived macrophages in the lung and limited injury. Thus, tissue hypoxia altered the dynamics of the immune response to the detriment of the host and interventions to address the aberrant response offer new therapeutic strategies for ARDS.
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Affiliation(s)
- Ananda S Mirchandani
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.
| | - Stephen J Jenkins
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Calum C Bain
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Manuel A Sanchez-Garcia
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Hannah Lawson
- Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Patricia Coelho
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Fiona Murphy
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - David M Griffith
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Ailiang Zhang
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Tyler Morrison
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Tony Ly
- Wellcome Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Simone Arienti
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Pranvera Sadiku
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Emily R Watts
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Rebecca S Dickinson
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Leila Reyes
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - George Cooper
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Sarah Clark
- Intensive Care Unit, Royal Infirmary of Edinburgh, NHS Lothian, Edinburgh, UK
| | - David Lewis
- Wellcome Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Van Kelly
- Wellcome Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Christos Spanos
- Wellcome Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Kathryn M Musgrave
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- Department of Respiratory Medicine, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Liam Delaney
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Isla Harper
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Jonathan Scott
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | | | - Anthony J Rostron
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - J Kenneth Baillie
- Wellcome Centre for Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
- Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Sara Clohisey
- Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Clare Pridans
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Lara Campana
- Centre for Regenerative Medicine, University of Edinburgh, Edinburgh, UK
| | | | - A John Simpson
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - David H Dockrell
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Jürgen Schwarze
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Nikhil Hirani
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Peter J Ratcliffe
- Nuffield Department of Medicine Research Building, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Ludwig Institute for Cancer Research, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- The Francis Crick Institute, London, UK
| | - Christopher W Pugh
- Nuffield Department of Medicine Research Building, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Kamil Kranc
- Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Stuart J Forbes
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
- Centre for Regenerative Medicine, University of Edinburgh, Edinburgh, UK
| | - Moira K B Whyte
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Sarah R Walmsley
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
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106
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Saraiva AL, Justino AB, Franco RR, Silva HCG, Arruda FDS, Klein SG, Celes MRN, Goulart LR, Espindola FS. Polyphenols-Rich Fraction from Annona muricata Linn. Leaves Attenuates Oxidative and Inflammatory Responses in Neutrophils, Macrophages, and Experimental Lung Injury. Pharmaceutics 2022; 14:pharmaceutics14061182. [PMID: 35745755 PMCID: PMC9228609 DOI: 10.3390/pharmaceutics14061182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/23/2022] [Accepted: 05/26/2022] [Indexed: 02/05/2023] Open
Abstract
Annona muricata Linn. is a common plant found in the warmest regions of South and Central America and its use in traditional medicine has been reported for the treatment of various illnesses. In the current study, we investigate the antioxidant and anti-inflammatory activities of crude extract and fractions from A. muricata L. leaves in isolated murine phagocytic immune cells as well as experimental LPS-induced acute lung injury (ALI). In a luminol-dependent chemiluminescence assay, we showed that ethyl acetate (EtOAc.f) and n-butanol (BuOH.f) fractions—both rich in polyphenols—reduced the generation of reactive oxygen species (ROS) by neutrophils stimulated with opsonized zymosan; similar results were found in culture of bone marrow-derived macrophages (BMDMs). By evaluating anti-inflammatory activity in BMDMs, EtOAc.f and BuOH.f reduced secretion of IL-6 and expression of the co-stimulatory molecule CD40. Furthermore, in LPS-induced ALI, oral administration of EtOAc.f reduced myeloperoxidase (MPO) activity in lung tissue. In addition, on a mechanism dependent on glutathione levels, the oxidative damage was also attenuated. These findings revealed direct antioxidant and anti-inflammatory activities of polyphenols-rich fractions of A. muricata L. leaves on neutrophils and macrophages. Moreover, the reduced oxidative damage and levels of inflammatory markers in experimental ALI suggest that these fractions might be explored for the development of new therapies for inflammatory conditions.
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Affiliation(s)
- André Lopes Saraiva
- Institute of Biotechnology, Federal University of Uberlândia, Rua Acre s/n, Bloco 2E, Uberlândia 38400-902, MG, Brazil; (A.L.S.); (A.B.J.); (R.R.F.); (H.C.G.S.)
| | - Allisson Benatti Justino
- Institute of Biotechnology, Federal University of Uberlândia, Rua Acre s/n, Bloco 2E, Uberlândia 38400-902, MG, Brazil; (A.L.S.); (A.B.J.); (R.R.F.); (H.C.G.S.)
| | - Rodrigo Rodrigues Franco
- Institute of Biotechnology, Federal University of Uberlândia, Rua Acre s/n, Bloco 2E, Uberlândia 38400-902, MG, Brazil; (A.L.S.); (A.B.J.); (R.R.F.); (H.C.G.S.)
| | - Heitor Cappato Guerra Silva
- Institute of Biotechnology, Federal University of Uberlândia, Rua Acre s/n, Bloco 2E, Uberlândia 38400-902, MG, Brazil; (A.L.S.); (A.B.J.); (R.R.F.); (H.C.G.S.)
| | - Felipe dos Santos Arruda
- Department of Bioscience and Technology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Rua 235, Setor Leste Universitário, Goiânia 74605-050, GO, Brazil; (F.d.S.A.); (M.R.N.C.)
| | - Sandra Gabriela Klein
- Rodent Vivarium Network (REBIR), Dean of Research and Graduate Studies, Federal University of Uberlândia, Rua Ceará s/n, Bloco 4U, Uberlândia 38405-315, MG, Brazil;
| | - Mara Rúbia Nunes Celes
- Department of Bioscience and Technology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Rua 235, Setor Leste Universitário, Goiânia 74605-050, GO, Brazil; (F.d.S.A.); (M.R.N.C.)
| | | | - Foued Salmen Espindola
- Institute of Biotechnology, Federal University of Uberlândia, Rua Acre s/n, Bloco 2E, Uberlândia 38400-902, MG, Brazil; (A.L.S.); (A.B.J.); (R.R.F.); (H.C.G.S.)
- Correspondence: ; Tel.: +55-34-3225-8439
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107
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Pathogenesis of pneumonia and acute lung injury. Clin Sci (Lond) 2022; 136:747-769. [PMID: 35621124 DOI: 10.1042/cs20210879] [Citation(s) in RCA: 88] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/29/2022] [Accepted: 05/09/2022] [Indexed: 12/15/2022]
Abstract
Pneumonia and its sequelae, acute lung injury, present unique challenges for pulmonary and critical care healthcare professionals, and these challenges have recently garnered global attention due to the ongoing Sars-CoV-2 pandemic. One limitation to translational investigation of acute lung injury, including its most severe manifestation (acute respiratory distress syndrome, ARDS) has been heterogeneity resulting from the clinical and physiologic diagnosis that represents a wide variety of etiologies. Recent efforts have improved our understanding and approach to heterogeneity by defining sub-phenotypes of ARDS although significant gaps in knowledge remain. Improving our mechanistic understanding of acute lung injury and its most common cause, infectious pneumonia, can advance our approach to precision targeted clinical interventions. Here, we review the pathogenesis of pneumonia and acute lung injury, including how respiratory infections and lung injury disrupt lung homoeostasis, and provide an overview of respiratory microbial pathogenesis, the lung microbiome, and interventions that have been demonstrated to improve outcomes-or not-in human clinical trials.
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108
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Chen L, Ma Q, Zhang G, Lei Y, Wang W, Zhang Y, Li T, Zhong W, Ming Y, Song G. Protective effect and mechanism of loganin and morroniside on acute lung injury and pulmonary fibrosis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 99:154030. [PMID: 35279615 DOI: 10.1016/j.phymed.2022.154030] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 02/10/2022] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Loganin and morroniside are two iridoid glycosides with anti-inflammatory, antioxidant and anti-tumor effects. Whether they have effect on acute lung injury and pulmonary fibrosis are still unknown. PURPOSE To explore the potential effects of loganin and morroniside against acute lung cancer and pulmonary fibrosis, and the underlying molecular mechanism. STUDY DESIGN AND METHODS Cell and animal models of acute lung injury were established by the induction of LPS. After intervention with loganin and morroniside, the pathological symptom of lung tissue was assessed, pro-inflammatory factors in cells and lung tissues were detected, NF- κB/STAT3 signaling pathway related proteins were detected by western blotting. Mice pulmonary fibrosis model was induced by bleomycin, pathological symptom was assessed by HE and Masson staining. Fibrosis related indicators were detected by qPCR or western blot. CD4+/CD8+ was detected by flow cytometry. RESULTS Loganin and morroniside relieved the pathological symptom of lung tissue in acute lung injury, pro-inflammatory factors such as IL-6, IL-1β, TNF-α mRNA were inhibited. Expression of p-p65 and STAT3 in lung tissues were also downregulated. In addition, loganin and morroniside downregulated the expression of collagen fiber, hydroxyproline and TGF-β1, collagen I and α-SMA mRNA in lung tissues of pulmonary fibrosis model. This study proved that loganin and morroniside have protective effect on acute lung injury and pulmonary fibrosis, and may provide theoretical basis for the development of new clinical drugs.
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Affiliation(s)
- Lianghua Chen
- Key Laboratory of Fujian Province for physiology and Biochemistry of Subtropical Plant, Fujian Institute of Subtropical Botany, Xiamen, Fujian 361006, China
| | - Qiujuan Ma
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Gongye Zhang
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Yongbin Lei
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Weiwei Wang
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Yuqi Zhang
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Tingting Li
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Wei Zhong
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Yanlin Ming
- Key Laboratory of Fujian Province for physiology and Biochemistry of Subtropical Plant, Fujian Institute of Subtropical Botany, Xiamen, Fujian 361006, China
| | - Gang Song
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen 361102, China.
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Elewa YHA, Masum MA, Mohamed SKA, Islam MR, Nakamura T, Ichii O, Kon Y. The Ameliorative Effect of Dexamethasone on the Development of Autoimmune Lung Injury and Mediastinal Fat-Associated Lymphoid Clusters in an Autoimmune Disease Mouse Model. Int J Mol Sci 2022; 23:ijms23084449. [PMID: 35457267 PMCID: PMC9027674 DOI: 10.3390/ijms23084449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 12/15/2022] Open
Abstract
In our previous study, we revealed the ameliorative therapeutic effect of dexamethasone (Dex) for Lupus nephritis lesions in the MRL/MpJ-Fas lpr/lpr (Lpr) mouse model. The female Lpr mice developed a greater number of mediastinal fat-associated lymphoid clusters (MFALCs) and inflammatory lung lesions compared to the male mice. However, the effect of Dex, an immunosuppressive drug, on both lung lesions and the development of MFALCs in Lpr mice has not been identified yet. Therefore, in this study, we compared the development of lung lesions and MFALCs in female Lpr mice that received either saline (saline group “SG”) or dexamethasone (dexamethasone group “DG”) in drinking water as a daily dose along with weekly intraperitoneal injections for 10 weeks. Compared to the SG group, the DG group showed a significant reduction in the levels of serum anti-dsDNA antibodies, the size of MFALCs, the degree of lung injury, the area of high endothelial venules (HEVs), and the number of proliferating and immune cells in both MFALCs and the lungs. A significant positive correlation was observed between the size of MFALCs and the cellular aggregation in the lungs of Lpr mice. Therefore, this study confirmed the ameliorative effect of Dex on the development of lung injury and MFALCs via their regressive effect on both immune cells’ proliferative activity and the development of HEVs. Furthermore, the reprogramming of MFALCs by targeting immune cells and HEVs may provide a therapeutic strategy for autoimmune-disease-associated lung injury.
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Affiliation(s)
- Yaser Hosny Ali Elewa
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan; (M.A.M.); (M.R.I.); (T.N.); (O.I.); (Y.K.)
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
- Correspondence: ; Tel.: +81-11-706-5188
| | - Md Abdul Masum
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan; (M.A.M.); (M.R.I.); (T.N.); (O.I.); (Y.K.)
| | - Sherif Kh. A. Mohamed
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt;
| | - Md Rashedul Islam
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan; (M.A.M.); (M.R.I.); (T.N.); (O.I.); (Y.K.)
| | - Teppei Nakamura
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan; (M.A.M.); (M.R.I.); (T.N.); (O.I.); (Y.K.)
- Department of Biological Safety Research, Chitose Laboratory, Japan Food Research Laboratories, Hokkaido 066-0052, Japan
| | - Osamu Ichii
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan; (M.A.M.); (M.R.I.); (T.N.); (O.I.); (Y.K.)
- Laboratory of Agrobiomedical Science, Faculty of Agriculture, Hokkaido University, Hokkaido 060-0818, Japan
| | - Yasuhiro Kon
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido 060-0818, Japan; (M.A.M.); (M.R.I.); (T.N.); (O.I.); (Y.K.)
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The Modulation of Interferon Regulatory Factor-1 via Caspase-1-Mediated Alveolar Macrophage Pyroptosis in Ventilator-Induced Lung Injury. Mediators Inflamm 2022; 2022:1002582. [PMID: 35462787 PMCID: PMC9033353 DOI: 10.1155/2022/1002582] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/26/2022] [Accepted: 03/29/2022] [Indexed: 11/30/2022] Open
Abstract
Background To examine the role of interferon regulatory factor-1 (IRF-1) and to explore the potential molecular mechanism in ventilator-induced lung injury. Methods Wild-type C57BL/6 mice and IRF-1 gene knockout mice/caspase-1 knockout mice were mechanically ventilated with a high tidal volume to establish a ventilator-related lung injury model. The supernatant of the alveolar lavage solution and the lung tissues of these mice were collected. The degree of lung injury was examined by hematoxylin and eosin staining. The protein and mRNA expression levels of IRF-1, caspase-1 (p10), and interleukin (IL)-1β (p17) in lung tissues were measured by western blot and quantitative real-time polymerase chain reaction, respectively. Pyroptosis of alveolar macrophages was detected by flow cytometry and western blotting for active caspase-1 and cleaved GSDMD. An enzyme-linked immunosorbent assay was used to measure the levels of IL-1β, IL-18, IL-6, TNF-α, and high mobility group box protein 1 (HMGB-1) in alveolar lavage fluid. Results IRF-1 expression and caspase-1-dependent pyroptosis in lung tissues of wild-type mice were significantly upregulated after mechanical ventilation with a high tidal volume. The degree of ventilator-related lung injury in IRF-1 gene knockout mice and caspase-1 knockout mice was significantly improved compared to that in wild-type mice, and the levels of GSDMD, IL-1β, IL-18, IL-6, and HMGB-1 in alveolar lavage solution were significantly reduced (P < 0.05). The expression levels of caspase-1 (p10), cleaved GSDMD, and IL-1β (p17) proteins in lung tissues of IRF-1 knockout mice with ventilator-related lung injury were significantly lower than those of wild-type mice, and the level of pyroptosis of macrophages in alveolar lavage solution was significantly reduced. Conclusions IRF-1 may aggravate ventilator-induced lung injury by regulating the activation of caspase-1 and the focal death of alveolar macrophages.
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111
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Parny M, Coste A, Aubouy A, Rahabi M, Prat M, Pipy B, Treilhou M. Differential immunomodulatory effects of six pesticides of different chemical classes on human monocyte-derived macrophage functions. Food Chem Toxicol 2022; 163:112992. [PMID: 35395341 DOI: 10.1016/j.fct.2022.112992] [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: 12/10/2021] [Revised: 03/04/2022] [Accepted: 04/03/2022] [Indexed: 01/19/2023]
Abstract
Exposure to pesticides through eyes, skin, ingestion and inhalation may affects human health by interfering with immune cells, such as macrophages. We evaluated, in vitro, the effect of six pesticides widely used in apple arboriculture on the functions of human monocyte-derived macrophages (hMDMs). hMDMs were cultured for 4 or 24 h with or without pesticides (0.01, 0.1, 1, 10 μmol.L-1). We showed that chlorpyrifos, thiacloprid, thiophanate, boscalid, and captan had little toxic effect at the tested concentrations, while dithianon had low-cytotoxicity at 10 μmol.L-1. While boscalid showed no effect on hMDMs function, thiophanate (0.01 μmol.L-1) stimulated with TPA and thiacloprid (1, 10 μmol.L-1) stimulated with zymosan activated ROS production. Chlorpyrifos, dithianon, and captan inhibited ROS production and TNF-α, IL-1β pro-inflammatory cytokines. We established that dithianon (0.01-1 μmol.L-1) and captan (0.1, 1 μmol.L-1) induced mRNA expression of NQO1 and HMOX1 antioxidant enzymes. Dithianon also induced the mRNA expression of catalase, superoxide dismutase-2 at 10 μmol.L-1. Together, these results show that exposure to chlorpyrifos, dithianon, and captan induce immunomodulatory effects that may influence the disease fighting properties of monocytes/macrophages while pesticides such as thiacloprid, thiophanate and boscalid have little influence.
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Affiliation(s)
- Melissa Parny
- EA7417, BTSB, Université Fédérale Toulouse Midi-Pyrénées, INU Champollion, Albi, France; PHARMADEV UMR 152, Institut de Recherche pour le Développement (IRD), Université Paul Sabatier Toulouse 3, Toulouse, France.
| | - Agnès Coste
- PHARMADEV UMR 152, Institut de Recherche pour le Développement (IRD), Université Paul Sabatier Toulouse 3, Toulouse, France.
| | - Agnès Aubouy
- PHARMADEV UMR 152, Institut de Recherche pour le Développement (IRD), Université Paul Sabatier Toulouse 3, Toulouse, France.
| | - Mouna Rahabi
- PHARMADEV UMR 152, Institut de Recherche pour le Développement (IRD), Université Paul Sabatier Toulouse 3, Toulouse, France.
| | - Melissa Prat
- PHARMADEV UMR 152, Institut de Recherche pour le Développement (IRD), Université Paul Sabatier Toulouse 3, Toulouse, France.
| | - Bernard Pipy
- PHARMADEV UMR 152, Institut de Recherche pour le Développement (IRD), Université Paul Sabatier Toulouse 3, Toulouse, France.
| | - Michel Treilhou
- EA7417, BTSB, Université Fédérale Toulouse Midi-Pyrénées, INU Champollion, Albi, France.
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Trappetti V, Fazzari J, Fernandez-Palomo C, Smyth L, Potez M, Shintani N, de Breuyn Dietler B, Martin OA, Djonov V. Targeted Accumulation of Macrophages Induced by Microbeam Irradiation in a Tissue-Dependent Manner. Biomedicines 2022; 10:735. [PMID: 35453485 PMCID: PMC9025837 DOI: 10.3390/biomedicines10040735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/08/2022] [Accepted: 03/18/2022] [Indexed: 02/01/2023] Open
Abstract
Radiation therapy (RT) is a vital component of multimodal cancer treatment, and its immunomodulatory effects are a major focus of current therapeutic strategies. Macrophages are some of the first cells recruited to sites of radiation-induced injury where they can aid in tissue repair, propagate radiation-induced fibrogenesis and influence tumour dynamics. Microbeam radiation therapy (MRT) is a unique, spatially fractionated radiation modality that has demonstrated exceptional tumour control and reduction in normal tissue toxicity, including fibrosis. We conducted a morphological analysis of MRT-irradiated normal liver, lung and skin tissues as well as lung and melanoma tumours. MRT induced distinct patterns of DNA damage, reflecting the geometry of the microbeam array. Macrophages infiltrated these regions of peak dose deposition at variable timepoints post-irradiation depending on the tissue type. In normal liver and lung tissue, macrophages clearly demarcated the beam path by 48 h and 7 days post-irradiation, respectively. This was not reflected, however, in normal skin tissue, despite clear DNA damage marking the beam path. Persistent DNA damage was observed in MRT-irradiated lung carcinoma, with an accompanying geometry-specific influx of mixed M1/M2-like macrophage populations. These data indicate the unique potential of MRT as a tool to induce a remarkable accumulation of macrophages in an organ/tissue-specific manner. Further characterization of these macrophage populations is warranted to identify their organ-specific roles in normal tissue sparing and anti-tumour responses.
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Affiliation(s)
- Verdiana Trappetti
- Institute of Anatomy, University of Bern, Baltzerstarsse 2, 3012 Bern, Switzerland; (V.T.); (J.F.); (C.F.-P.); (M.P.); (N.S.); (B.d.B.D.); (O.A.M.)
| | - Jennifer Fazzari
- Institute of Anatomy, University of Bern, Baltzerstarsse 2, 3012 Bern, Switzerland; (V.T.); (J.F.); (C.F.-P.); (M.P.); (N.S.); (B.d.B.D.); (O.A.M.)
| | - Cristian Fernandez-Palomo
- Institute of Anatomy, University of Bern, Baltzerstarsse 2, 3012 Bern, Switzerland; (V.T.); (J.F.); (C.F.-P.); (M.P.); (N.S.); (B.d.B.D.); (O.A.M.)
| | - Lloyd Smyth
- Department of Obstetrics and Gynaecology, Royal Women’s Hospital, University of Melbourne, Melbourne, VIC 3052, Australia;
| | - Marine Potez
- Institute of Anatomy, University of Bern, Baltzerstarsse 2, 3012 Bern, Switzerland; (V.T.); (J.F.); (C.F.-P.); (M.P.); (N.S.); (B.d.B.D.); (O.A.M.)
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 USF Magnolia Drive, Tampa, FL 33612, USA
| | - Nahoko Shintani
- Institute of Anatomy, University of Bern, Baltzerstarsse 2, 3012 Bern, Switzerland; (V.T.); (J.F.); (C.F.-P.); (M.P.); (N.S.); (B.d.B.D.); (O.A.M.)
| | - Bettina de Breuyn Dietler
- Institute of Anatomy, University of Bern, Baltzerstarsse 2, 3012 Bern, Switzerland; (V.T.); (J.F.); (C.F.-P.); (M.P.); (N.S.); (B.d.B.D.); (O.A.M.)
| | - Olga A. Martin
- Institute of Anatomy, University of Bern, Baltzerstarsse 2, 3012 Bern, Switzerland; (V.T.); (J.F.); (C.F.-P.); (M.P.); (N.S.); (B.d.B.D.); (O.A.M.)
- Division of Radiation Oncology, Peter MacCallum Cancer Centre, 305 Grattan St., Melbourne, VIC 3000, Australia
- Department of Oncology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Valentin Djonov
- Institute of Anatomy, University of Bern, Baltzerstarsse 2, 3012 Bern, Switzerland; (V.T.); (J.F.); (C.F.-P.); (M.P.); (N.S.); (B.d.B.D.); (O.A.M.)
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Wang L, Zhao M. Suppression of NOD-like receptor protein 3 inflammasome activation and macrophage M1 polarization by hederagenin contributes to attenuation of sepsis-induced acute lung injury in rats. Bioengineered 2022; 13:7262-7276. [PMID: 35266443 PMCID: PMC9208453 DOI: 10.1080/21655979.2022.2047406] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Acute lung injury (ALI) is a major leading cause of death in sepsis patients. Hederagenin (HG), derived from Hedera helix Linné, has anti-inflammatory effects, while its role in sepsis-induced ALI has not been elucidated. In vivo, rats were subjected to cecal ligation and puncture to induce ALI and then treated with HG (12.5, 25, or 50 mg/kg) by gavage. Administration of HG raised survival rate, ameliorated lung injury, and decreased lung wet/dry ratio and inflammatory cell accumulation in bronchoalveloar lavage fluid (BALF) of ALI rats. HG inhibited macrophage polarization toward the M1 phenotype as evidenced by decreased CD86 expression in rat lung tissues. Moreover, HG decreased the secretion of TNF-α, IL-6 and monocyte chemoattractant protein-1 (MCP-1) in BALF and the levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in lung tissues. In vitro, phorbol-12-myristate-13-acetate (PMA)-differentiated THP-1 macrophages were stimulated with 100 ng/mL lipopolysaccharide. HG treatment inhibited M1 macrophage polarization and the production of M1-related pro-inflammatory mediators (IL-6, MCP-1, iNOS, and COX-2). Mechanistically, HG inhibited NLRP3 inflammasome activation and subsequent release of IL-18 and IL-1β, and suppressed NF-κB signaling pathway both in vivo and in vitro. Notably, HG treatment further emphasized the inhibitory effect of NF-κB inhibitor BAY11-7082 on NLRP3 inflammasome activation and macrophage M1 polarization. Taken together, HG exerts a protective effect against sepsis-induced ALI by reducing the inflammatory response and macrophage M1 polarization, which may involve NF-κB pathway-modulated NLRP3 inflammasome activation.
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Affiliation(s)
- Lin Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Min Zhao
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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Mirata S, Almonti V, Di Giuseppe D, Fornasini L, Raneri S, Vernazza S, Bersani D, Gualtieri AF, Bassi AM, Scarfì S. The Acute Toxicity of Mineral Fibres: A Systematic In Vitro Study Using Different THP-1 Macrophage Phenotypes. Int J Mol Sci 2022; 23:2840. [PMID: 35269982 PMCID: PMC8911508 DOI: 10.3390/ijms23052840] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 02/24/2022] [Accepted: 02/28/2022] [Indexed: 02/05/2023] Open
Abstract
Alveolar macrophages are the first line of defence against detrimental inhaled stimuli. To date, no comparative data have been obtained on the inflammatory response induced by different carcinogenic mineral fibres in the three main macrophage phenotypes: M0 (non-activated), M1 (pro-inflammatory) and M2 (alternatively activated). To gain new insights into the different toxicity mechanisms of carcinogenic mineral fibres, the acute effects of fibrous erionite, crocidolite and chrysotile in the three phenotypes obtained by THP-1 monocyte differentiation were investigated. The three mineral fibres apparently act by different toxicity mechanisms. Crocidolite seems to exert its toxic effects mostly as a result of its biodurability, ROS and cytokine production and DNA damage. Chrysotile, due to its low biodurability, displays toxic effects related to the release of toxic metals and the production of ROS and cytokines. Other mechanisms are involved in explaining the toxicity of biodurable fibrous erionite, which induces lower ROS and toxic metal release but exhibits a cation-exchange capacity able to alter the intracellular homeostasis of important cations. Concerning the differences among the three macrophage phenotypes, similar behaviour in the production of pro-inflammatory mediators was observed. The M2 phenotype, although known as a cell type recruited to mitigate the inflammatory state, in the case of asbestos fibres and erionite, serves to support the process by supplying pro-inflammatory mediators.
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Affiliation(s)
- Serena Mirata
- Department Earth, Environment and Life Sciences, University of Genova, 16132 Genova, Italy;
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56122 Pisa, Italy; (V.A.); (S.V.); (A.M.B.)
| | - Vanessa Almonti
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56122 Pisa, Italy; (V.A.); (S.V.); (A.M.B.)
- Department Experimental Medicine, University of Genova, 16132 Genova, Italy
| | - Dario Di Giuseppe
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (D.D.G.); (A.F.G.)
| | - Laura Fornasini
- ICCOM-CNR—Institute of Chemistry of OrganoMetallic Compounds, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy; (L.F.); (S.R.)
| | - Simona Raneri
- ICCOM-CNR—Institute of Chemistry of OrganoMetallic Compounds, National Research Council, Via G. Moruzzi 1, 56124 Pisa, Italy; (L.F.); (S.R.)
| | - Stefania Vernazza
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56122 Pisa, Italy; (V.A.); (S.V.); (A.M.B.)
- Department Experimental Medicine, University of Genova, 16132 Genova, Italy
| | - Danilo Bersani
- Department of Mathematical, Physical and Computer Sciences, University of Parma, Parco Area delle Scienze 7/A, 43124 Parma, Italy;
| | - Alessandro F. Gualtieri
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy; (D.D.G.); (A.F.G.)
| | - Anna Maria Bassi
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56122 Pisa, Italy; (V.A.); (S.V.); (A.M.B.)
- Department Experimental Medicine, University of Genova, 16132 Genova, Italy
| | - Sonia Scarfì
- Department Earth, Environment and Life Sciences, University of Genova, 16132 Genova, Italy;
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56122 Pisa, Italy; (V.A.); (S.V.); (A.M.B.)
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Corry J, Kettenburg G, Upadhyay AA, Wallace M, Marti MM, Wonderlich ER, Bissel SJ, Goss K, Sturgeon TJ, Watkins SC, Reed DS, Bosinger SE, Barratt-Boyes SM. Infiltration of inflammatory macrophages and neutrophils and widespread pyroptosis in lung drive influenza lethality in nonhuman primates. PLoS Pathog 2022; 18:e1010395. [PMID: 35271686 PMCID: PMC8939778 DOI: 10.1371/journal.ppat.1010395] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 03/22/2022] [Accepted: 02/24/2022] [Indexed: 01/04/2023] Open
Abstract
Severe influenza kills tens of thousands of individuals each year, yet the mechanisms driving lethality in humans are poorly understood. Here we used a unique translational model of lethal H5N1 influenza in cynomolgus macaques that utilizes inhalation of small-particle virus aerosols to define mechanisms driving lethal disease. RNA sequencing of lung tissue revealed an intense interferon response within two days of infection that resulted in widespread expression of interferon-stimulated genes, including inflammatory cytokines and chemokines. Macaques with lethal disease had rapid and profound loss of alveolar macrophages (AMs) and infiltration of activated CCR2+ CX3CR1+ interstitial macrophages (IMs) and neutrophils into lungs. Parallel changes of AMs and neutrophils in bronchoalveolar lavage (BAL) correlated with virus load when compared to macaques with mild influenza. Both AMs and IMs in lethal influenza were M1-type inflammatory macrophages which expressed neutrophil chemotactic factors, while neutrophils expressed genes associated with activation and generation of neutrophil extracellular traps (NETs). NETs were prominent in lung and were found in alveolar spaces as well as lung parenchyma. Genes associated with pyroptosis but not apoptosis were increased in lung, and activated inflammatory caspases, IL-1β and cleaved gasdermin D (GSDMD) were present in bronchoalveolar lavage fluid and lung homogenates. Cleaved GSDMD was expressed by lung macrophages and alveolar epithelial cells which were present in large numbers in alveolar spaces, consistent with loss of epithelial integrity. Cleaved GSDMD colocalized with viral NP-expressing cells in alveoli, reflecting pyroptosis of infected cells. These novel findings reveal that a potent interferon and inflammatory cascade in lung associated with infiltration of inflammatory macrophages and neutrophils, elaboration of NETs and cell death by pyroptosis mediates lethal H5N1 influenza in nonhuman primates, and by extension humans. These innate pathways represent promising therapeutic targets to prevent severe influenza and potentially other primary viral pneumonias in humans. Influenza can cause acute lung injury and death, but the mechanisms resulting in lethal influenza in humans are not well understood. We used a novel model of lethal influenza in nonhuman primates caused by aerosol infection with highly pathogenic avian influenza virus that closely resembles human disease to define how the virus causes severe pneumonia. We found that a potent innate immune response starting with high-level production of interferons and inflammatory factors in the lung drives severe disease. Inflammatory cells including macrophages and neutrophils were recruited into lung because of this early response, which in turn led to release of neutrophil extracellular traps that blocked lung alveoli. In addition, a particularly inflammatory form of cell death known as pyroptosis occurred in lungs during lethal influenza. These new findings show that an intense interferon response leading to an inflammatory cascade of macrophages and neutrophils, release of neutrophil extracellular traps, and cell death by pyroptosis is responsible for acute lung injury in lethal influenza. These innate pathways could be targeted by drugs to prevent lung injury in critically ill influenza patients.
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Affiliation(s)
- Jacqueline Corry
- Department of Infectious Diseases & Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- * E-mail: (JC); (SMBB)
| | - Gwenddolen Kettenburg
- Department of Infectious Diseases & Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Amit A. Upadhyay
- Yerkes NHP Genomics Core Laboratory, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
| | - Megan Wallace
- Department of Infectious Diseases & Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Michelle M. Marti
- Department of Infectious Diseases & Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Elizabeth R. Wonderlich
- Department of Infectious Diseases & Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Stephanie J. Bissel
- Division of Neuropathology, Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Kyndal Goss
- Yerkes NHP Genomics Core Laboratory, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
| | - Timothy J. Sturgeon
- Center for Vaccine Research, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Simon C. Watkins
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Douglas S. Reed
- Center for Vaccine Research, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Steven E. Bosinger
- Yerkes NHP Genomics Core Laboratory, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
| | - Simon M. Barratt-Boyes
- Department of Infectious Diseases & Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- * E-mail: (JC); (SMBB)
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Effects of electroacupuncture pretreatment on M1 polarization of alveolar macrophages in rats with acute lung injury. JOURNAL OF ACUPUNCTURE AND TUINA SCIENCE 2022. [DOI: 10.1007/s11726-022-1288-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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117
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Ning Q, Wu D, Wang X, Xi D, Chen T, Chen G, Wang H, Lu H, Wang M, Zhu L, Hu J, Liu T, Ma K, Han M, Luo X. The mechanism underlying extrapulmonary complications of the coronavirus disease 2019 and its therapeutic implication. Signal Transduct Target Ther 2022; 7:57. [PMID: 35197452 PMCID: PMC8863906 DOI: 10.1038/s41392-022-00907-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/10/2022] [Accepted: 01/17/2022] [Indexed: 02/06/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) is a highly transmissible disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that poses a major threat to global public health. Although COVID-19 primarily affects the respiratory system, causing severe pneumonia and acute respiratory distress syndrome in severe cases, it can also result in multiple extrapulmonary complications. The pathogenesis of extrapulmonary damage in patients with COVID-19 is probably multifactorial, involving both the direct effects of SARS-CoV-2 and the indirect mechanisms associated with the host inflammatory response. Recognition of features and pathogenesis of extrapulmonary complications has clinical implications for identifying disease progression and designing therapeutic strategies. This review provides an overview of the extrapulmonary complications of COVID-19 from immunological and pathophysiologic perspectives and focuses on the pathogenesis and potential therapeutic targets for the management of COVID-19.
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Affiliation(s)
- Qin Ning
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Di Wu
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaojing Wang
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dong Xi
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Chen
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guang Chen
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongwu Wang
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huiling Lu
- National Medical Center for Major Public Health Events, Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming Wang
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lin Zhu
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Junjian Hu
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tingting Liu
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ke Ma
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meifang Han
- National Medical Center for Major Public Health Events, Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Xiaoping Luo
- National Medical Center for Major Public Health Events, Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Van Slambrouck J, Van Raemdonck D, Vos R, Vanluyten C, Vanstapel A, Prisciandaro E, Willems L, Orlitová M, Kaes J, Jin X, Jansen Y, Verleden GM, Neyrinck AP, Vanaudenaerde BM, Ceulemans LJ. A Focused Review on Primary Graft Dysfunction after Clinical Lung Transplantation: A Multilevel Syndrome. Cells 2022; 11:cells11040745. [PMID: 35203392 PMCID: PMC8870290 DOI: 10.3390/cells11040745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 02/01/2023] Open
Abstract
Primary graft dysfunction (PGD) is the clinical syndrome of acute lung injury after lung transplantation (LTx). However, PGD is an umbrella term that encompasses the ongoing pathophysiological and -biological mechanisms occurring in the lung grafts. Therefore, we aim to provide a focused review on the clinical, physiological, radiological, histological and cellular level of PGD. PGD is graded based on hypoxemia and chest X-ray (CXR) infiltrates. High-grade PGD is associated with inferior outcome after LTx. Lung edema is the main characteristic of PGD and alters pulmonary compliance, gas exchange and circulation. A conventional CXR provides a rough estimate of lung edema, while a chest computed tomography (CT) results in a more in-depth analysis. Macroscopically, interstitial and alveolar edema can be distinguished below the visceral lung surface. On the histological level, PGD correlates to a pattern of diffuse alveolar damage (DAD). At the cellular level, ischemia-reperfusion injury (IRI) is the main trigger for the disruption of the endothelial-epithelial alveolar barrier and inflammatory cascade. The multilevel approach integrating all PGD-related aspects results in a better understanding of acute lung failure after LTx, providing novel insights for future therapies.
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Affiliation(s)
- Jan Van Slambrouck
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Thoracic Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Dirk Van Raemdonck
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Thoracic Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Robin Vos
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Respiratory Diseases, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Cedric Vanluyten
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Thoracic Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Arno Vanstapel
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Pathology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Elena Prisciandaro
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Thoracic Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Lynn Willems
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Pulmonary Circulation Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium;
| | - Michaela Orlitová
- Department of Cardiovascular Sciences, KU Leuven, 3000 Leuven, Belgium; (M.O.); (A.P.N.)
| | - Janne Kaes
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
| | - Xin Jin
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Thoracic Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Yanina Jansen
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Thoracic Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Geert M. Verleden
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Respiratory Diseases, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Arne P. Neyrinck
- Department of Cardiovascular Sciences, KU Leuven, 3000 Leuven, Belgium; (M.O.); (A.P.N.)
- Department of Anesthesiology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Bart M. Vanaudenaerde
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
| | - Laurens J. Ceulemans
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Lung Transplant Unit, Department of Chronic Diseases and Metabolism, KU Leuven, 3000 Leuven, Belgium; (J.V.S.); (D.V.R.); (R.V.); (C.V.); (A.V.); (E.P.); (J.K.); (X.J.); (Y.J.); (G.M.V.); (B.M.V.)
- Department of Thoracic Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
- Correspondence:
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Investigating the Intercellular Communication Network of Immune Cell in Acute Respiratory Distress Syndrome with Sepsis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:4586648. [PMID: 35222683 PMCID: PMC8866031 DOI: 10.1155/2022/4586648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 01/27/2022] [Indexed: 11/17/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is recognized as a serious public health issue that results in respiratory failure and high mortality rates. The syndrome is characterized by immune cell aggregation, communication, activation, and alveolar epithelial damage. To elucidate the complex dynamic process of the immune system's response in ARDS, we construct the intercellular communication network of immune cells in ARDS based on a single-cell RNA sequencing dataset (including three sepsis-induced ARDS patients and four sepsis-only patients). The results show that macrophages relayed most of the intercellular signals (ligand–receptor pairs) in both groups. Many genes related to immune response (IFI44L, ISG, and HLA-DQB1) and biological functions (response to virus, negative regulation of viral life cycle, and response to interferon-beta) were detected via differentially expressed gene analysis of macrophages between the two groups. Deep analysis of the intercellular signals related to the macrophage found that sepsis-induced ARDS harbored distinctive intercellular signals related to chemokine–chemokine receptors (CCL3/4/5−CCR1), which mainly are involved in the disturbance of the STAT family transcription factors (TFs), such as STAT2 and STAT3. These signals and downstream TFs might play key roles in macrophage M1/M2 polarization in the process of sepsis-induced ARDS. This study provides a comprehensive view of the intercellular communication landscape between sepsis and sepsis-induced ARDS and identifies key intercellular communications and TFs involved in sepsis-induced ARDS. We believe that our study provides valuable clues for understanding the immune response mechanisms of ARDS.
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Chen S, Chen L, Ye L, Jiang Y, Li Q, Zhang H, Zhang R, Li H, Yu D, Zhang R, Niu Y, Zhao Q, Liu J, Ouyang G, Aschner M, Zheng Y, Zhang L, Chen W, Li D. PP2A-mTOR-p70S6K/4E-BP1 axis regulates M1 polarization of pulmonary macrophages and promotes ambient particulate matter induced mouse lung injury. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127624. [PMID: 34740159 DOI: 10.1016/j.jhazmat.2021.127624] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/10/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
To identify key signaling pathways involved in ambient particulate matter (PM)-induced pulmonary injury, we generated a mouse model with myeloid-specific deletion of Ppp2r1a gene (encoding protein phosphatase 2 A (PP2A) A subunit), and conducted experiments in a real-ambient PM exposure system. PP2A Aα-/- homozygote (Aα HO) mice and matched wild-type (WT) littermates were exposed to PM over 3-week and 6-week. The effects of PM exposure on pulmonary inflammation, oxidative stress, and apoptosis were significantly enhanced in Aα HO compared to WT mice. The number of pulmonary macrophages increased by 74.8~88.0% and enhanced M1 polarization appeared in Aα HO mice upon PM exposure. Secretion of M1 macrophage-related inflammatory cytokines was significantly increased in Aα HO vs. WT mice following PM exposure. Moreover, we demonstrated that PP2A-B56α holoenzyme regulated M1 polarization and that the mTOR signaling pathway mediated the persistent M1 polarization upon PM2.5 exposure. Importantly, PP2A-B56α holoenzyme was shown to complex with mTOR/p70S6K/4E-BP1, and suppression of B56α led to enhanced phosphorylation of mTOR, p70S6K, and 4E-BP1. These observations demonstrate that the PP2A-mTOR-p70S6K/4E-BP1 signaling is a critical pathway in mediating macrophage M1 polarization, which contributes to PM-induced pulmonary injury.
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Affiliation(s)
- Shen Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Liping Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Lizhu Ye
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yue Jiang
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Qiong Li
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Haiyan Zhang
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Rui Zhang
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Huiyao Li
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Dianke Yu
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao 266021, China
| | - Rong Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, China
| | - Yujie Niu
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, China
| | - Qun Zhao
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Science, National Chromatographic Research and Analysis Center, Dalian 116023, China
| | - Jianhui Liu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Science, National Chromatographic Research and Analysis Center, Dalian 116023, China
| | - Gangfeng Ouyang
- KLGHEI of Environment and Energy Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY 10461, USA
| | - Yuxin Zheng
- Department of Toxicology, School of Public Health, Qingdao University, Qingdao 266021, China
| | - Lihua Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Science, National Chromatographic Research and Analysis Center, Dalian 116023, China
| | - Wen Chen
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Daochuan Li
- Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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Zhai Z, Ouyang W, Yao Y, Zhang Y, Zhang H, Xu F, Gao C. Dexamethasone-loaded ROS-responsive poly(thioketal) nanoparticles suppress inflammation and oxidative stress of acute lung injury. Bioact Mater 2022; 14:430-442. [PMID: 35415281 PMCID: PMC8965854 DOI: 10.1016/j.bioactmat.2022.01.047] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 01/27/2022] [Accepted: 01/27/2022] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury (ALI) is associated with excessive inflammatory response, leading to acute respiratory distress syndrome (ARDS) without timely treatment. A fewer effective drugs are available currently to treat the ALI/ARDS. Herein, a therapeutic nanoplatform with reactive oxygen species (ROS)-responsiveness was developed for the regulation of inflammation. Dexamethasone acetate (Dex) was encapsulated into poly(thioketal) polymers to form polymeric nanoparticles (NPs) (PTKNPs@Dex). The NPs were composed of poly(1,4-phenyleneacetonedimethylene thioketal) (PPADT) and polythioketal urethane (PTKU), in which the thioketal bonds could be cleaved by the high level of ROS at the ALI site. The PTKNPs@Dex could accumulate in the pulmonary inflammatory sites and release the encapsulated payloads rapidly, leading to the decreased ROS level, less generation of pro-inflammatory cytokines, and reduced lung injury and mortality of mice. RNA sequencing (RNA-seq) analysis showed that the therapeutic efficacy of the NPs was associated with the modulation of many immune and inflammation-linked pathways. These findings provide a newly developed nanoplatform for the efficient treatment of ALI/ARDS. A therapeutic nanoplatform with ROS-responsiveness was developed for the regulation of inflammation. NPs composed of low Mw of PPADT and high Mw of PTKU were loaded with dexamethasone to obtain a self-adaptive system. The Dex-loaded NPs significantly decreased lung inflammation, and reduced lung injury and mortality in vivo.
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Affiliation(s)
- Zihe Zhai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wei Ouyang
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - Yuejun Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yuqi Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Haolan Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Feng Xu
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Corresponding author. Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China.
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou, 310058, China
- Department of Orthopedics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
- Corresponding author. MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
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Kim TO, Park KJ, Cho YN, Jin HM, Jo YG, Kim HS, Ju JK, Shin HJ, Kho BG, Kee SJ, Park YW. Altered distribution, activation and increased IL-17 production of mucosal-associated invariant T cells in patients with acute respiratory distress syndrome. Thorax 2022; 77:865-872. [PMID: 35086913 DOI: 10.1136/thoraxjnl-2021-217724] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 01/06/2022] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Mucosal-associated invariant T (MAIT) cells are a subset of innate-like T cells that are engaged in a number of diseases, but their roles in acute respiratory distress syndrome (ARDS) are not fully examined yet. This study aimed to examine levels and functions of MAIT cells in patients with ARDS. METHODS Peripheral blood samples from patients with ARDS (n=50) and healthy controls (HCs, n=50) were collected. Levels of MAIT cells, cytokines, CD69, programmed cell death-1 (PD-1) and lymphocyte-activation gene 3 (LAG-3) were measured by flow cytometry. RESULTS Circulating MAIT cell levels were significantly reduced in patients with ARDS than in HCs. MAIT cell levels were inversely correlated with disease severity and mortality. Cytokine production profiles in MAIT cells showed that percentages of interleukin (IL)-17 producing MAIT cell were significantly higher in patients with ARDS than in HCs. Patients with ARDS exhibited higher expression levels of CD69, PD-1 and LAG-3 in circulating MAIT cells. Moreover, levels of MAIT cells and expression levels of CD69, PD-1 and IL-17 in MAIT cells were higher in bronchoalveolar lavage fluid samples than in peripheral blood samples. Our in vitro experiments showed that MAIT cells triggered macrophages to produce proinflammatory cytokines such as tumour necrosis factor-α, IL-1β and IL-8. CONCLUSIONS This study demonstrates that circulating MAIT cells are numerically deficient in patients with ARDS. In addition, MAIT cells were found to be activated, migrate into lung, secrete IL-17 and then stimulate macrophages. These findings suggest that MAIT cells contribute to the worsening of inflammation in the lung of patients with ARDS.
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Affiliation(s)
- Tae-Ok Kim
- Pulmonology, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Ki-Jeong Park
- Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Young-Nan Cho
- Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Hye-Mi Jin
- Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Young-Goun Jo
- Surgery, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Hyo Shin Kim
- Surgery, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Jae Kyun Ju
- Surgery, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Hong-Joon Shin
- Pulmonology, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Bo-Gun Kho
- Pulmonology, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Seung-Jung Kee
- Laboratory Medicine, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Yong-Wook Park
- Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea .,Rheumatology, Chonnam National University Bitgoeul Hospital, Gwangju, Korea
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Zheng F, Pan Y, Yang Y, Zeng C, Fang X, Shu Q, Chen Q. Novel biomarkers for acute respiratory distress syndrome: genetics, epigenetics and transcriptomics. Biomark Med 2022; 16:217-231. [PMID: 35026957 DOI: 10.2217/bmm-2021-0749] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) can be induced by multiple clinical factors, including sepsis, acute pancreatitis, trauma, intestinal ischemia/reperfusion and burns. However, these factors alone may poorly explain the risk and outcomes of ARDS. Emerging evidence suggests that genomic-based or transcriptomic-based biomarkers may hold the promise to establish predictive or prognostic stratification methods for ARDS, and also to help in developing novel therapeutic targets for ARDS. Notably, genetic/epigenetic variations correlated with susceptibility and prognosis of ARDS and circulating microRNAs have emerged as potential biomarkers for diagnosis or prognosis of ARDS. Although limited by sample size, ethnicity and phenotypic heterogeneity, ongoing genetic/transcriptomic research contributes to the characterization of novel biomarkers and ultimately helps to develop innovative therapeutics for ARDS patients.
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Affiliation(s)
- Fei Zheng
- Department of Clinical Research Center, The Children's Hospital, School of Medicine, Zhejiang University, National Clinical Research Center for Child Health, Hangzhou, 310052, China
| | - Yihang Pan
- Department of Clinical Research Center, The Children's Hospital, School of Medicine, Zhejiang University, National Clinical Research Center for Child Health, Hangzhou, 310052, China
| | - Yang Yang
- Department of Intensive Care Medicine, The Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
| | - Congli Zeng
- Department of Anesthesia, Critical Care & Pain Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Xiangming Fang
- Department of Anesthesiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Qiang Shu
- Department of Clinical Research Center, The Children's Hospital, School of Medicine, Zhejiang University, National Clinical Research Center for Child Health, Hangzhou, 310052, China
| | - Qixing Chen
- Department of Clinical Research Center, The Children's Hospital, School of Medicine, Zhejiang University, National Clinical Research Center for Child Health, Hangzhou, 310052, China
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Ishikawa S, Miyazawa M, Tanaka C, Uesawa R, Nishizawa J, Uemura R, Kobayashi I, Hobo S. Interferon gamma, lipopolysaccharide, and modified-live viral vaccines stimulation alter the mRNA expression of tumor necrosis factor α, inducible nitric oxide synthase, and interferon β in bovine alveolar macrophages. Vet Immunol Immunopathol 2022; 244:110378. [PMID: 34999416 DOI: 10.1016/j.vetimm.2021.110378] [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: 07/12/2021] [Revised: 12/27/2021] [Accepted: 12/31/2021] [Indexed: 10/19/2022]
Abstract
To understand the pathogenesis of bovine respiratory disease (BRD), it is necessary to elucidate the mechanisms of alveolar macrophage regulation by cytokines and pathogen-associated molecular patterns (PAMPs). Moreover, "non-specific effects (NSEs)" an innate immune regulatory mechanism in response to vaccines containing PAMPs, has recently attracted attention. It may be applied to BRD control, but there is limited knowledge in bovine. To investigate this, we stimulated alveolar macrophages in vitro with lipopolysaccharide (LPS), polyinosinic-polycytidylic acid sodium salt (Poly I:C), interferon gamma (IFN-γ), and modified-live viral (MLV) vaccines, respectively, and analyzed changes in tumor necrosis factor alpha (TNF-α), inducible nitric oxide synthase (iNOS), and interferon beta (IFN-β) mRNA expression levels. mRNA expression levels of TNF-α, iNOS, and IFN-β were significantly increased in bovine alveolar macrophages stimulated by IFN-γ and MLV vaccine; LPS, IFN-γ, and MLV vaccine; and MLV vaccine only, respectively. Additionally, all MLV vaccine-stimulated mRNA expression increases were observed in a concentration-dependent manner. These results revealed in part, the mechanism of bovine alveolar macrophage regulation by cytokines and PAMPs. Understanding the regulatory mechanisms of alveolar macrophages will contribute to understanding the pathogenesis of BRD and preventive and therapeutic BRD management based on NSEs.
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Affiliation(s)
- Shingo Ishikawa
- Division of Veterinary Science, Graduate School of Life and Environmental Biosciences, Osaka Prefecture University, Izumi-Sano, Osaka, 598-8531, Japan; Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
| | - Masataka Miyazawa
- Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
| | - Chiho Tanaka
- Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
| | - Ryoma Uesawa
- Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
| | - Juri Nishizawa
- Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
| | - Ryoko Uemura
- Center for Animal Disease Control, University of Miyazaki, 1-1 Gakuenkibanadai-nishi, Miyazaki, 889-2192, Japan
| | - Ikuo Kobayashi
- Center for Animal Disease Control, University of Miyazaki, 1-1 Gakuenkibanadai-nishi, Miyazaki, 889-2192, Japan
| | - Seiji Hobo
- Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan.
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ISHIKAWA S, MIYAZAWA M, ZIBIKI Y, KAMIKAKIMOTO R, HOBO S. Flow cytometric analysis of bronchoalveolar lavage fluid immune dynamics in calves. J Vet Med Sci 2022; 84:548-557. [PMID: 35153256 PMCID: PMC9096045 DOI: 10.1292/jvms.21-0522] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Understanding the immune dynamics in the respiratory mucosa of calves is necessary for a
good management of bovine respiratory disease. Immune dynamics in the respiratory mucosa
in humans and experimental animals has been assessed by flow cytometric analysis of
bronchoalveolar lavage fluid (BALF); however, few reports have addressed this subject in
calves. The aim of this study was to establish a universal method to analyze
bronchoalveolar lavage fluid (BALF) by flow cytometry and to obtain basic knowledge of
bovine respiratory mucosal immune dynamics. We investigated the immune cell populations in
BALF and evaluated the surface antigen expression of alveolar macrophages in calves using
flow cytometer. To further analyze the surface antigen variation observed in alveolar
macrophages in detail, stimulation assays were performed in vitro. BALF
cells were separated into three distinct populations based on their light scatter plot,
which were considered to be macrophages, lymphocytes, and neutrophils. In most
individuals, most of the BALF immune cells were alveolar macrophages, but an increased
proportion of lymphocytes and neutrophils was observed in some individuals. Analysis of
each surface antigen expression in alveolar macrophages showed that CD21 and MHC class II
expression changed in response to changes in the leukocyte population. Moreover, when
alveolar macrophages were stimulated with interferon-γ in vitro, the
expression of CD21 was drastically reduced and MHC class II was increased, suggesting that
functional changes in alveolar macrophages themselves are involved in the immune
dynamics.
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Affiliation(s)
- Shingo ISHIKAWA
- Division of Veterinary Science, Graduate School of Life and Environmental Biosciences, Osaka Prefecture University
| | | | | | | | - Seiji HOBO
- Joint Faculty of Veterinary Medicine, Kagoshima University
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Jia Y, Li C, Yin M, Lin J, Zhang L, Li N, Jiang N, Xu Q, Wang Q, Gu L, Yu B, Zhao G. Kaempferol ameliorate the prognosis of Aspergillus fumigatus keratitis by reducing fungal load and inhibiting the Dectin-1 and p38 MAPK pathway. Exp Eye Res 2022; 216:108960. [DOI: 10.1016/j.exer.2022.108960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/18/2022] [Accepted: 01/20/2022] [Indexed: 11/04/2022]
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127
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Tissue-resident immunity in the lung: a first-line defense at the environmental interface. Semin Immunopathol 2022; 44:827-854. [PMID: 36305904 PMCID: PMC9614767 DOI: 10.1007/s00281-022-00964-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/08/2022] [Indexed: 12/15/2022]
Abstract
The lung is a vital organ that incessantly faces external environmental challenges. Its homeostasis and unimpeded vital function are ensured by the respiratory epithelium working hand in hand with an intricate fine-tuned tissue-resident immune cell network. Lung tissue-resident immune cells span across the innate and adaptive immunity and protect from infectious agents but can also prove to be pathogenic if dysregulated. Here, we review the innate and adaptive immune cell subtypes comprising lung-resident immunity and discuss their ontogeny and role in distinct respiratory diseases. An improved understanding of the role of lung-resident immunity and how its function is dysregulated under pathological conditions can shed light on the pathogenesis of respiratory diseases.
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128
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Sun S, Yao Y, Huang C, Xu H, Zhao Y, Wang Y, Zhu Y, Miao Y, Feng X, Gao X, Zheng J, Zhang Q. CD36 regulates LPS-induced acute lung injury by promoting macrophages M1 polarization. Cell Immunol 2022; 372:104475. [DOI: 10.1016/j.cellimm.2021.104475] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 12/02/2021] [Accepted: 12/31/2021] [Indexed: 01/11/2023]
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129
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Grau-Expósito J, Perea D, Suppi M, Massana N, Vergara A, Soler MJ, Trinite B, Blanco J, García-Pérez J, Alcamí J, Serrano-Mollar A, Rosado J, Falcó V, Genescà M, Buzon MJ. Evaluation of SARS-CoV-2 entry, inflammation and new therapeutics in human lung tissue cells. PLoS Pathog 2022; 18:e1010171. [PMID: 35025963 PMCID: PMC8791477 DOI: 10.1371/journal.ppat.1010171] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/26/2022] [Accepted: 12/06/2021] [Indexed: 12/15/2022] Open
Abstract
The development of physiological models that reproduce SARS-CoV-2 infection in primary human cells will be instrumental to identify host-pathogen interactions and potential therapeutics. Here, using cell suspensions directly from primary human lung tissues (HLT), we have developed a rapid platform for the identification of viral targets and the expression of viral entry factors, as well as for the screening of viral entry inhibitors and anti-inflammatory compounds. The direct use of HLT cells, without long-term cell culture and in vitro differentiation approaches, preserves main immune and structural cell populations, including the most susceptible cell targets for SARS-CoV-2; alveolar type II (AT-II) cells, while maintaining the expression of proteins involved in viral infection, such as ACE2, TMPRSS2, CD147 and AXL. Further, antiviral testing of 39 drug candidates reveals a highly reproducible method, suitable for different SARS-CoV-2 variants, and provides the identification of new compounds missed by conventional systems, such as VeroE6. Using this method, we also show that interferons do not modulate ACE2 expression, and that stimulation of local inflammatory responses can be modulated by different compounds with antiviral activity. Overall, we present a relevant and rapid method for the study of SARS-CoV-2.
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Affiliation(s)
- Judith Grau-Expósito
- Infectious Diseases Department, Vall d’Hebron Research Institute (VHIR), Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, VHIR Task Force COVID-19, Barcelona, Spain
| | - David Perea
- Infectious Diseases Department, Vall d’Hebron Research Institute (VHIR), Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, VHIR Task Force COVID-19, Barcelona, Spain
| | - Marina Suppi
- Infectious Diseases Department, Vall d’Hebron Research Institute (VHIR), Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, VHIR Task Force COVID-19, Barcelona, Spain
| | - Núria Massana
- Infectious Diseases Department, Vall d’Hebron Research Institute (VHIR), Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, VHIR Task Force COVID-19, Barcelona, Spain
| | - Ander Vergara
- Nephrology Research Department, Vall d’Hebron Research Institute (VHIR), Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, VHIR Task Force COVID-19, Barcelona, Spain
| | - Maria José Soler
- Nephrology Research Department, Vall d’Hebron Research Institute (VHIR), Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, VHIR Task Force COVID-19, Barcelona, Spain
| | - Benjamin Trinite
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, Autonomous University of Barcelona (UAB), Badalona, Spain
| | - Julià Blanco
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, Autonomous University of Barcelona (UAB), Badalona, Spain
- University of Vic–Central University of Catalonia (UVic-UCC), Vic, Spain
| | - Javier García-Pérez
- AIDS Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - José Alcamí
- AIDS Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Clinic HIV Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Anna Serrano-Mollar
- Experimental Pathology Department, Institut d’Investigacions Biomèdiques de Barcelona, Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Centro de Investigaciones Biomédicas en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Joel Rosado
- Thoracic Surgery and Lung Transplantation Department, Vall d’Hebron Institut de Recerca (VHIR), Hospital Universitari Vall d’Hebron, VHIR Task Force COVID-19, Barcelona, Spain
| | - Vicenç Falcó
- Infectious Diseases Department, Vall d’Hebron Research Institute (VHIR), Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, VHIR Task Force COVID-19, Barcelona, Spain
| | - Meritxell Genescà
- Infectious Diseases Department, Vall d’Hebron Research Institute (VHIR), Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, VHIR Task Force COVID-19, Barcelona, Spain
| | - Maria J. Buzon
- Infectious Diseases Department, Vall d’Hebron Research Institute (VHIR), Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, VHIR Task Force COVID-19, Barcelona, Spain
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Sauer A, Peukert K, Putensen C, Bode C. Antibiotics as immunomodulators: a potential pharmacologic approach for ARDS treatment. Eur Respir Rev 2021; 30:210093. [PMID: 34615700 PMCID: PMC9489085 DOI: 10.1183/16000617.0093-2021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 07/02/2021] [Indexed: 11/05/2022] Open
Abstract
First described in the mid-1960s, acute respiratory distress syndrome (ARDS) is a life-threatening form of respiratory failure with an overall mortality rate of approximately 40%. Despite significant advances in the understanding and treatment of ARDS, no substantive pharmacologic therapy has proven to be beneficial, and current management continues to be primarily supportive. Beyond their antibacterial activity, several antibiotics such as macrolides and tetracyclines exert pleiotropic immunomodulatory effects that might be able to rectify the dysregulated inflammatory response present in patients with ARDS. This review aims to provide an overview of preclinical and clinical studies that describe the immunomodulatory effects of antibiotics in ARDS. Moreover, the underlying mechanisms of their immunomodulatory properties will be discussed. Further studies are necessary to investigate their full therapeutic potential and to identify ARDS phenotypes which are most likely to benefit from their immunomodulatory effects.
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Affiliation(s)
- Andrea Sauer
- Dept of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Konrad Peukert
- Dept of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Christian Putensen
- Dept of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Christian Bode
- Dept of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
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131
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Hexarelin modulates lung mechanics, inflammation, and fibrosis in acute lung injury. Drug Target Insights 2021; 15:26-33. [PMID: 34871336 PMCID: PMC8638068 DOI: 10.33393/dti.2021.2347] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 10/20/2021] [Indexed: 12/27/2022] Open
Abstract
Introduction: Acute respiratory distress syndrome (ARDS) is an acute form of diffuse lung injury characterized by (i) an intense inflammatory response, (ii) increased pulmonary vascular permeability, and (iii) the loss of respiratory pulmonary tissue. In this article we explore the therapeutic potential of hexarelin, a synthetic hexapeptide growth hormone secretagogue (GHS), in an experimental model of ARDS. Hexarelin has anti-inflammatory properties and demonstrates cardiovascular-protective activities including the inhibition of cardiomyocyte apoptosis and cardiac fibrosis, both of which may involve the angiotensin-converting enzyme (ACE) system. Methods: In our experimental model, ARDS was induced by the instillation of 100 mM HCl into the right bronchus; these mice were treated with hexarelin (320 μg/kg, ip) before (Pre) or after (Post) HCl challenge, or with vehicle. Respiratory system compliance, blood gas analysis, and differential cell counts in a selective bronchoalveolar lavage (BAL) were determined 6 or 24 hours after HCl instillation. In an extended study, mice were observed for a subsequent 14 days in order to assess lung fibrosis. Results: Hexarelin induced a significant improvement in lung compliance and a reduction of the number of total immune cells in BAL 24 hours after HCl instillation, accompanied with a lower recruitment of neutrophils compared with the vehicle group. At day 14, hexarelin-treated mice presented with less pulmonary collagen deposition compared with vehicle-treated controls. Conclusions: Our data suggest that hexarelin can inhibit the early phase of the inflammatory response in a murine model of HCl-induced ARDS, thereby blunting lung remodeling processes and fibrotic development.
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132
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Kang IS, Kim RI, Kim C. Carbon Monoxide Regulates Macrophage Differentiation and Polarization toward the M2 Phenotype through Upregulation of Heme Oxygenase 1. Cells 2021; 10:3444. [PMID: 34943953 PMCID: PMC8700076 DOI: 10.3390/cells10123444] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 12/24/2022] Open
Abstract
Carbon monoxide (CO) is generated by heme oxygenase (HO), and HO-1 is highly induced in monocytes and macrophages upon stimulation. Monocytes differentiate into macrophages, including pro-inflammatory (M1) and anti-inflammatory (M2) cells, in response to environmental signals. The present study investigated whether CO modulates macrophage differentiation and polarization, by applying the CO-releasing molecule-3 (CORM-3). Results showed that murine bone marrow cells are differentiated into macrophages by CORM-3 in the presence of macrophage colony-stimulating factor. CORM-3 increases expressions of macrophage markers, including F4/80 and CD11b, and alters the cell morphology into elongated spindle-shaped cells, which is a typical morphology of M2 cells. CORM-3 upregulates the expressions of genes and molecules involved in M2 polarization and M2 phenotype markers, such as STAT6, PPARγ, Ym1, Fizz1, arginase-1, and IL-10. However, exposure to CORM-3 inhibits the iNOS expression, suggesting that CO enhances macrophage differentiation and polarization toward M2. Increased HO-1 expression is observed in differentiated macrophages, and CORM-3 further increases this expression. Hemin, an HO-1 inducer, results in increased macrophage differentiation, whereas the HO-1 inhibitor zinc protoporphyrin IX inhibits differentiation. In addition, CORM-3 increases the proportion of macrophages in peritoneal exudate cells and enhances the expression of HO-1 and arginase-1 but inhibits iNOS. Taken together, these results suggest that the abundantly produced CO in activated macrophages enhances proliferation, differentiation, and polarization toward M2. It will probably help clear apoptotic cells, resolve inflammation, and promote wound healing and tissue remodeling.
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Affiliation(s)
- In-Soon Kang
- Laboratory of Leukocyte Signaling Research, Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Korea; (I.-S.K.); (R.-I.K.)
| | - Rang-Ie Kim
- Laboratory of Leukocyte Signaling Research, Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Korea; (I.-S.K.); (R.-I.K.)
| | - Chaekyun Kim
- Laboratory of Leukocyte Signaling Research, Department of Pharmacology, College of Medicine, Inha University, Incheon 22212, Korea; (I.-S.K.); (R.-I.K.)
- BK21 Program in Biomedical Science & Engineering, Inha University, Incheon 22212, Korea
- Convergent Research Center for Metabolism and Immunoregulation, Inha University, Incheon 22212, Korea
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Lana JFSD, Lana AVSD, Rodrigues QS, Santos GS, Navani R, Navani A, da Fonseca LF, Azzini GOM, Setti T, Mosaner T, Simplicio CL, Setti TM. Nebulization of glutathione and N-Acetylcysteine as an adjuvant therapy for COVID-19 onset. ADVANCES IN REDOX RESEARCH 2021; 3:100015. [PMID: 35425932 PMCID: PMC8349474 DOI: 10.1016/j.arres.2021.100015] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/26/2021] [Accepted: 08/02/2021] [Indexed: 12/12/2022]
Abstract
Ever since its emergence, the highly transmissible and debilitating coronavirus disease spread at an incredibly fast rate, causing global devastation in a matter of months. SARS-CoV-2, the novel coronavirus responsible for COVID-19, infects hosts after binding to ACE2 receptors present on cells from many structures pertaining to the respiratory, cardiac, hematological, neurological, renal and gastrointestinal systems. COVID-19, however, appears to trigger a severe cytokine storm syndrome in pulmonary structures, resulting in oxidative stress, exacerbated inflammation and alveolar injury. Due to the recent nature of this disease no treatments have shown complete efficacy and safety. More recently, however, researchers have begun to direct some attention towards GSH and NAC. These natural antioxidants play an essential role in several biological processes in the body, especially the maintenance of the redox equilibrium. In fact, many diseases appear to be strongly related to severe oxidative stress and deficiency of endogenous GSH. The high ratios of ROS over GSH, in particular, appear to reflect severity of symptoms and prolonged hospitalization of COVID-19 patients. This imbalance interferes with the body's ability to detoxify the cellular microenvironment, fold proteins, replenish antioxidant levels, maintain healthy immune responses and even modulate apoptotic events. Oral administration of GSH and NAC is convenient and safe, but they are susceptible to degradation in the digestive tract. Considering this drawback, nebulization of GSH and NAC as an adjuvant therapy may therefore be a viable alternative for the management of the early stages of COVID-19.
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Affiliation(s)
- José Fábio Santos Duarte Lana
- Orthopedics - Sports Medicine - Pain Physician, IOC - Instituto do Osso e da Cartilagem/The Bone and Cartilage Institute, 1386 Presidente Kennedy Avenue - 2nd floor, Room #29 - Zip code 13334-170, Indaiatuba SP, Brazil
| | - Anna Vitória Santos Duarte Lana
- Medical Student, UniMAX - Centro Universitário Max Planck, 460 Nove de Dezembro Avenue - Jardim Pedroso - Zip code 13343-060, Indaiatuba SP, Brazil
| | - Quézia Souza Rodrigues
- Nurse, IOC - Instituto do Osso e da Cartilagem/The Bone and Cartilage Institute, 1386 Presidente Kennedy Avenue - 2nd floor, Room #29 - Zip code 13334-170, Indaiatuba, SP, Brazil
| | - Gabriel Silva Santos
- Biomedical Scientist, IOC - Instituto do Osso e da Cartilagem / The Bone and Cartilage Institute, 1386 Presidente Kennedy Avenue - 2nd floor, Room #29 - Zip code 13334-170, Indaiatuba, SP, Brazil
| | - Riya Navani
- Research Student, IOC - Instituto do Osso e da Cartilagem / The Bone and Cartilage Institute, 1386 Presidente Kennedy Avenue - 2nd floor, Room #29 - Zip code 13334-170, Indaiatuba, SP, Brazil
| | - Annu Navani
- Medical Director, Comprehensive Spine & Sports Center, Advisor, Le Reve Regenerative, Adjunct Clinical Associate Professor, Stanford University School of Medicine, 3425 S Bascom Ave, Suite 200, Campbell, CA 95008, USA
| | - Lucas Furtado da Fonseca
- Orthopedics - Sports Medicine - Pain Physician, Orthopaedic Department - Universidade Federal de São Paulo, 715 Napoleão de Barros St - Vila Clementino - Zip code 04024-002, São Paulo, SP, Brazil
| | - Gabriel Ohana Marques Azzini
- Orthopedics - Sports Medicine - Pain Physician, IOC - Instituto do Osso e da Cartilagem / The Bone and Cartilage Institute, Presidente Kennedy Avenue, 1386 - 2nd floor, Room #29 - Zip code 13334-170, Indaiatuba, SP, Brazil
| | - Thiago Setti
- Orthopedics - Sports Medicine - Pain Physician, Indolor - Centro Intervencionista de Controle da Dor, 583 Sul Brasil Avenue - room #406 - Centro - Zip code 89814-210, Maravilha, SC, Brazil
| | - Tomas Mosaner
- Orthopedics - Sports Medicine - Pain Physician, IOC - Instituto do Osso e da Cartilagem / The Bone and Cartilage Institute, 1386 Presidente Kennedy Avenue - 2nd floor, Room #29 - Zip code 13334-170, Indaiatuba, SP, Brazil
| | - Claudio Lopes Simplicio
- Orthopedics - Sports Medicine - Pain Physician, Clinica Ortofisio, Avenida Brasil, 300 - Parque Hotel Araruama, Araruama, RJ, Brazil
| | - Taís Mazzini Setti
- Anesthesiology, Indolor - Centro Intervencionista de Controle da Dor, 583 Sul Brasil Avenue - room #406 - Centro - Zip code 89814-210, Maravilha, SC, Brazil
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134
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Cao F, Wang C, Long D, Deng Y, Mao K, Zhong H. Network-Based Integrated Analysis of Transcriptomic Studies in Dissecting Gene Signatures for LPS-Induced Acute Lung Injury. Inflammation 2021; 44:2486-2498. [PMID: 34462829 PMCID: PMC8405180 DOI: 10.1007/s10753-021-01518-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 07/07/2021] [Indexed: 10/26/2022]
Abstract
Acute lung injury (ALI) is a type of serious clinical syndrome leading to morbidity and mortality. However, the precise pathogenesis of ALI remains elusive. Here, we implemented an integrative meta-analysis of six GEO microarray studies with 76 samples in the ALI mouse model. A total of 958 differentially expressed genes (DEGs) were identified in LPS relative to normal samples. Then, a network-based meta-analysis was used to mine core DEGs and to unfold the interactions among these genes. We found that Ebi3 was the top upregulated genes in the LPS-induced ALI. GO, KEGG, and GSEA analyses were performed for functional annotation. qRT-PCR revealed augmented expression of six candidate genes (Stat1, Syk, Jak3, Rac2, Ripk1, and Traf6) in the established ALI mouse model with LPS exposure. Taken together, our study investigated comprehensively hub DEGs and their networks for LPS-stimulated ALI, which might afford an additional approach to determine biomarkers and therapeutic targets and explore the molecular pathophysiology toward ALI.
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Affiliation(s)
- Fang Cao
- Department of Cerebrovascular Disease, Affiliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi, Guizhou, 563003 China
| | - Chunyan Wang
- Department of Gastroenterology, Sichuan Provincial Peoples Hospital, University of Electronic Science and Technology, Chengdu, 610000 Sichuan China
| | - Danling Long
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000 Hubei China
| | - Yujuan Deng
- School of Computer Science and Engineering, Shijiazhuang University, Shijiazhuang, Hebei China
| | - Kaimin Mao
- Department of Critical Care Medicine, School of Medicine, Renji Hospital, Shanghai Jiaotong University, Shanghai, 200127 China
| | - Hua Zhong
- College of Life Sciences, Wuhan University, Wuhan, 430072 Hubei China
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135
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Lee J, Gong YX, Jeong H, Seo H, Xie DP, Sun HN, Kwon T. Pharmacological effects of Picrasma quassioides (D. Don) Benn for inflammation, cancer and neuroprotection (Review). Exp Ther Med 2021; 22:1357. [PMID: 34659503 PMCID: PMC8515544 DOI: 10.3892/etm.2021.10792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/25/2021] [Indexed: 02/06/2023] Open
Abstract
Picrasma quassioides (D. Don) Benn is an Asian shrub with a considerable history of traditional medicinal use. P. quassioides and its extracts exhibit good therapeutic properties against several diseases, including anti-inflammatory, antibacterial and anticancer effects. However, the composition of compounds contained in P. quassioides is complex; although various studies have examined mixtures or individual compounds extracted from it, studies on the application of P. quassioides extracts remain limited. In the present review, the structures and functions of the compounds identified from P. quassioides and their utility in anti-inflammatory, anticancer and neuroprotectant therapies was discussed. The present review provided up-to-date information on pharmacological activities and clinical applications for P. quassioides extracts.
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Affiliation(s)
- Jaihyung Lee
- Epigenetics Drug Discovery Center, Hwalmyeong Convalescence Hospital, Gapyeong, Gyeonggi 12458, Republic of Korea
- Korean Convergence Medicine Center, Hwalmyeong Hospital of Korean Medicine, Seoul 03790, Republic of Korea
| | - Yi-Xi Gong
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Hyunjeong Jeong
- Epigenetics Drug Discovery Center, Hwalmyeong Convalescence Hospital, Gapyeong, Gyeonggi 12458, Republic of Korea
- Korean Convergence Medicine Center, Hwalmyeong Hospital of Korean Medicine, Seoul 03790, Republic of Korea
| | - Hoyoung Seo
- Epigenetics Drug Discovery Center, Hwalmyeong Convalescence Hospital, Gapyeong, Gyeonggi 12458, Republic of Korea
- Korean Convergence Medicine Center, Hwalmyeong Hospital of Korean Medicine, Seoul 03790, Republic of Korea
| | - Dan-Ping Xie
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Hu-Nan Sun
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, P.R. China
| | - Taeho Kwon
- Primate Resources Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeonbuk 56216, Republic of Korea
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Min JH, Kim SM, Park JIW, Kwon NH, Goo SH, Ngatinem, Ningsih S, Paik JH, Choi S, Oh SR, Han SB, Ahn KS, Lee JW. Lagerstroemia ovalifolia Exerts Anti- Inflammatory Effects in Mice of LPSInduced ALI via Downregulating of MAPK and NF-κB Activation. J Microbiol Biotechnol 2021; 31:1501-1507. [PMID: 34489373 PMCID: PMC9705882 DOI: 10.4014/jmb.2107.07023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 12/15/2022]
Abstract
Lagerstroemia ovalifolia Teijsm. & Binn. (LO) (crape myrtle) has reportedly been used as traditional herbal medicine (THM) in Java, Indonesia. Our previous study revealed that the LO leaf extract (LOLE) exerted anti-inflammatory effects on lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Based on this finding, the current study aimed to evaluate the protective effects of LOLE in a mouse model of LPS-induced acute lung injury (ALI). The results showed that treatment with LPS enhanced the inflammatory cell influx into the lungs and increased the number of macrophages and the secretion of the inflammatory cytokines in the bronchoalveolar lavage fluid (BALF) of mice. However, these effects were notably abrogated with LOLE pretreatment. Furthermore, the increase of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2) and monocyte chemoattractant protein-1 (MCP-1) expression in the lung tissues of mice with ALI was also reversed by LOLE. In addition, LOLE significantly suppressed the LPS-induced activation of the MAPK/NF-κB signaling pathway and led to heme oxygenase-1 (HO-1) induction in the lungs. Additionally, in vitro experiments showed that LOLE enhanced the expression of HO-1 in RAW264.7 macrophages. The aforementioned findings collectively indicate that LOLE exerts an ameliorative effect on inflammatory response in the airway of ALI mice.
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Affiliation(s)
- Jae-Hong Min
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Seong-Man Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - JI-Won Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Nam Hoon Kwon
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Soo Hyeon Goo
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Ngatinem
- Starch Technology Center, Agency for the Assessment and Application Technology, Lampung 34161, Indonesia
| | - Sri Ningsih
- Center for Pharmaceutical and Medical Technology, Agency for the Assessment and Application of Technology, LAPTIAB Building 611, Puspiptek, Serpong, Tangerang-Selatan 15314, Indonesia
| | - Jin-Hyub Paik
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Sangho Choi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Sang-Bae Han
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea,Corresponding authors S.B. Han Phone:+82-43-261-2815 E-mail:
| | - Kyung-Seop Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea,
K.S. Ahn Phone:+82-43-240-6113 Fax:+82-43-240-6129 E-mail:
| | - Jae-Won Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea,
J.W. Lee Phone:+82-43-240-6135 Fax:+82-43-240-6129 E-mail:
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Abstract
Acute Respiratory Distress Syndrome is a familiar and destructive clinical condition characterized by progressive, swift and impaired pulmonary state. It leads to mortality if not managed in a timely manner. Recently the role of imbalanced macrophage polarization has been reported in ARDS. Macrophages are known for their heterogeneity and plasticity. Under different microenvironmental stimuli, they (M0) can switch between classically activated macrophage (M1) and alternatively activated (M2) states. This switch is regulated by several signaling pathways and epigenetic changes. In this review, the importance of macrophage M1 and M2 has been discussed in the arena of ARDS citing the phase-wise impact of macrophage polarization. This will provide a further understanding of the molecular mechanism involved in ARDS and will help in developing novel therapeutic targets. Various biomarkers that are currently used concerning this pathophysiological feature have also been summarized.
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Mao Y, Lv X, Xu W, Ying Y, Qin Z, Liao H, Chen L, Liu Y. Identification and validation of candidate genes dysregulated in alveolar macrophages of acute respiratory distress syndrome. PeerJ 2021; 9:e12312. [PMID: 34754619 PMCID: PMC8555499 DOI: 10.7717/peerj.12312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/24/2021] [Indexed: 01/10/2023] Open
Abstract
Background Acute respiratory distress syndrome (ARDS) is a common cause of death in ICU patients and its underlying mechanism remains unclear, which leads to its high mortality rate. This study aimed to identify candidate genes potentially implicating in the pathogenesis of ARDS and provide novel therapeutic targets. Methods Using bioinformatics tools, we searched for differentially expressed genes (DEGs) in an ARDS microarray dataset downloaded from the Gene Expression Omnibus (GEO) database. Afterwards, functional enrichment analysis of GO, KEGG, GSEA and WGCNA were carried out to investigate the potential involvement of these DEGs. Moreover, the Protein-protein interaction (PPI) network was constructed and molecular complexes and hub genes were identified, followed by prognosis analysis of the hub genes. Further, we performed qRT-PCR, Western Blot and flow cytometry analysis to detect candidate genes of CCR2 and FPR3 in macrophage model of LPS-induced ARDS and primary alveolar macrophages(AMs). Macrophage chemotaxis was evaluated using Transwell assay. Results DEGs mainly involved in myeloid leukocyte activation, cell chemotaxis, adenylate cyclase-modulating G protein-coupled receptor signaling pathway and cytokine-cytokine receptor interaction. Basing on the constructed PPI network, we identified five molecular complexes and 10 hub genes potentially participating in the pathogenesis of ARDS. It was observed that candidate genes of CCR2 and FPR3 were significantly over-expressed in primary alveolar macrophages from ARDS patients and macrophgae model of LPS-induced ARDS. Moreover, in vitro transwell assay demonstrated that CCR2 and FPR3 down-regulation, respectively, inhibited LPS-triggered macrophage chemotaxis toward CCL2. Finally, a positive correlation between FPR3 and CCR2 expression was confirmed using pearson correlation analysis and Western Blot assay. Conclusions Our study identified CCR2 and FPR3 as the candidate genes which can promote macrophage chemotaxis through a possible interaction between FPR3 and CCL2/CCR2 axis and provided novel insights into ARDS pathogenesis.
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Affiliation(s)
- Yong Mao
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Xin Lv
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Wei Xu
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Youguo Ying
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Emergency Department, Shanghai, China
| | - Zonghe Qin
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Handi Liao
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Li Chen
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
| | - Ya Liu
- Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Department of Intensive Care Unit, Shanghai, China
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139
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Muhammad W, Zhai Z, Wang S, Gao C. Inflammation-modulating nanoparticles for pneumonia therapy. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 14:e1763. [PMID: 34713969 DOI: 10.1002/wnan.1763] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 12/23/2022]
Abstract
Pneumonia is a common but serious infectious disease, and is the sixth leading cause for death. The foreign pathogens such as viruses, fungi, and bacteria establish an inflammation response after interaction with lung, leading to the filling of bronchioles and alveoli with fluids. Although the pharmacotherapies have shown their great effectiveness to combat pathogens, advanced methods are under developing to treat complicated cases such as virus-infection and lung inflammation or acute lung injury (ALI). The inflammation modulation nanoparticles (NPs) can effectively suppress immune cells and inhibit inflammatory molecules in the lung site, and thereby alleviate pneumonia and ALI. In this review, the pathological inflammatory microenvironments in pneumonia, which are instructive for the design of biomaterials therapy, are summarized. The focus is then paid to the inflammation-modulating NPs that modulate the inflammatory cells, cytokines and chemokines, and microenvironments of pneumonia for better therapeutic effects. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Respiratory Disease.
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Affiliation(s)
- Wali Muhammad
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Zihe Zhai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Shuqin Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
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Farahany J, Tsukasaki Y, Mukhopadhyay A, Mittal M, Nepal S, Tiruppathi C, Malik AB. CD38-Mediated Inhibition of Bruton's Tyrosine Kinase in Macrophages Prevents Endotoxemic Lung Injury. Am J Respir Cell Mol Biol 2021; 66:183-195. [PMID: 34706199 DOI: 10.1165/rcmb.2021-0272oc] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
TLR4 signaling via endotoxemia in macrophages promotes macrophage transition to the inflammatory phenotype through NLRP3 inflammasome activation. This transition event has the potential to trigger acute lung injury (ALI). However, relatively little is known about the regulation of NLRP3 and its role in the pathogenesis of ALI. Here we interrogated the signaling pathway activated by CD38, an ectoenzyme expressed in macrophages, in preventing ALI through suppressing NLRP3 activation. Wild type and Cd38 knockout (Cd38─/─) mice were used to assess inflammatory lung injury and isolated macrophages were used to delineate underlying TLR4 signaling pathway. We showed that CD38 suppressed TLR4 signaling in macrophages by inhibiting Bruton's tyrosine kinase (Btk) through the recruitment of protein tyrosine phosphatase SHP2 and resulting in the dephosphorylation of activated Btk. Cd38─/─ mice show enhanced lung PMN extravasation and severe lung injury. LPS- or polymicrobial sepsis-induced mortality in Cd38─/─ mice were markedly augmented compared with WT. CD38 in macrophages functioned by inhibiting Btk activation through activation of SHP2 and resulting dephosphorylation of Btk, and thereby preventing activation of downstream targets NF-ΚB and NLRP3. Cd38─/─ macrophages displayed markedly increased activation of Btk, NF-ΚB, and NLRP3 whereas in vivo administration of the Btk inhibitor ibrutinib (a FDA approved drug) prevented augmented TLR4-induced inflammatory lung injury seen in Cd38─/─ mice. Our findings together show that upregulation of CD38 activity and inhibition of Btk activation downstream of TLR4 activation as potential strategies to prevent endotoxemic ALI.
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Affiliation(s)
- Joseph Farahany
- University of Illinois At Chicago, Chicago, Illinois, United States
| | | | | | - Manish Mittal
- University of Illinois At Chicago, Chicago, Illinois, United States
| | - Saroj Nepal
- University of Illinois At Chicago, Chicago, Illinois, United States
| | | | - Asrar B Malik
- University of Illinois At Chicago, Chicago, Illinois, United States
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Zhang Y, Yuan D, Li Y, Yang F, Hou L, Yu Y, Sun C, Duan G, Meng C, Yan H, Li D, Gao Y, Sun T, Zhu C. Paraquat promotes acute lung injury in rats by regulating alveolar macrophage polarization through glycolysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 223:112571. [PMID: 34352584 DOI: 10.1016/j.ecoenv.2021.112571] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 05/02/2023]
Abstract
The present study investigates whether paraquat (PQ) regulates polarization of alveolar macrophages through glycolysis and promotes the occurrence of acute lung injury in rats. In vivo, the PQ intraperitoneal injection was used to construct a model of acute lung injury in rats. In vitro, the study measured the effect of different concentrations of PQ on the viability of the alveolar macrophages, and explored the polarization and glycolysis metabolism of alveolar macrophages at different time points after PQ intervention. Compared with the normal control (NC) group, the lung pathological damage in rats increased gradually after PQ poisoning, reaching a significant degree at 48 h after poisoning. The PQ-poisoned rat serum showed increased expressions of interleukin-6 (IL-6), tumor necrosis factor- α (TNF-α), and M1 macrophage marker, iNOS, while the expression of interleukin-10 (IL-10) and M2 macrophage marker, Arg1, decreased. The toxic effect of PQ on alveolar macrophages was dose- and time-dependent. Compared with the NC group, IL-6 and TNF-α in the cell supernatant gradually increased after PQ intervention, while the IL-10 content gradually decreased. The PQ intervention in alveolar macrophages increased the expression of intracellular glycolysis rate-limiting enzyme pyruvate kinase isozymes M1/M2 (PKM1/M2), lactate, lactate/pyruvate ratio, and the polarization of alveolar macrophage towards M1. Inhibition of cellular glycolysis significantly reduced the PQ-induced alveolar macrophage polarization to M1 type. Thus, PQ induced increased polarization of lung macrophages toward M1 and decreased polarization toward M2, promoting acute lung injury. Therefore, it can be concluded that PQ regulates the polarization of alveolar macrophages through glycolysis.
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Affiliation(s)
- Yan Zhang
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Ding Yuan
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Yi Li
- Emergency Department, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Fang Yang
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Linlin Hou
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Yanwu Yu
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Changhua Sun
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Guoyu Duan
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Cuicui Meng
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Hongyi Yan
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Dongxu Li
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China
| | - Yanxia Gao
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China.
| | - Tongwen Sun
- General ICU, the First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Critical Care Medicine, Zhengzhou Key Laboratory of Sepsis, Henan Engineering Research Center for Critical Care Medicine, Zhengzhou 450052, China.
| | - Changju Zhu
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Henan Key Laboratory of Emergency and Trauma Research Medicine, Zhengzhou 450000, China.
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Chu YB, Li J, Jia P, Cui J, Zhang R, Kang X, Lv M, Zhang S. Irf1- and Egr1-activated transcription plays a key role in macrophage polarization: A multiomics sequencing study with partial validation. Int Immunopharmacol 2021; 99:108072. [PMID: 34426111 DOI: 10.1016/j.intimp.2021.108072] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 08/11/2021] [Accepted: 08/11/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Macrophage polarization has a causal role in the pathogenesis and resolution of various clinical diseases. DNA-binding transcription factors (TFs) have been identified as essential factors during gene transcription. Better insight into the TFs that regulate macrophage polarization could provide novel therapeutic targets. METHODS IFN-γ (50 ng/mL) or IL4 (20 ng/mL) was utilized to stimulate bone marrow-derived macrophages from mice for 24 h for M1- and M2-polarized macrophage model construction, respectively. First, ATAC-seq (Assay for Targeting Accessible-Chromatin with high throughout sequencing) and motif analysis were conducted to identify potential transcription factors (TFs) involved in M1 and M2 macrophage polarization. Second, essential TFs were identified through RNA-seq, after which, their expression was compared between M0-polarized and M1/M2-polarized macrophages. Furthermore, a multiomic analysis of RNA-seq (siRNA knock down of the identified TFs), ChIP-seq and ATAC-seq was utilized to explore the TF-regulated molecular network. GO and KEGG analyses were used to expound the main functions of the TF-regulated molecular network. Finally, the top 5 TF-regulated genes were validated through flow cytometry, ELISA and qPCR. The cut-off values for high-throughput sequencing and qPCR were FDR < 0.05 and P < 0.05, respectively. RESULTS Compared with M0 macrophages, 10,771 and 4,848 peaks were identified by ATAC-seq during M1 and M2 macrophage polarization, respectively (FDR < 0.05). Fifty and 62 TF binding motifs were identified for the TFs that participate in M1 and M2 macrophage polarization, respectively. The most significantly highly expressed TFs in M1 and M2 macrophages were identified by RNA-seq as Irf1 and Egr1, with LogFC values of 3.2 and 2.8, respectively. Multiomic analyses further found that Irf1 regulated the transcription of 90 genes and that Egr1 regulated the transcription of 116 genes. The Irf1-regulated molecular network played a key role in the inflammatory response and viral defence of M1 macrophages, and 116 Egr1-regulated genes included anti-inflammatory and cell proliferation genes. Validation experiments indicated that IFN-γ-induced Gbp5, Nos2, CD86, Cxcl10 and Cxcl5 expression was significantly downregulated in siIrf1-BMDMs, and IL4-induced Itgax, Nipal1, Bhlhe40, CD206 and Ffar4 expression was significantly downregulated in siEgr1-BMDMs (P < 0.05). CONCLUSIONS Through multiomic analyses of epigenetic sequencing and RNA-seq with partial validation, the current study found that Irf1- and Egr1-induced transcription plays key roles in M1 and M2 macrophage polarization, respectively.
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Affiliation(s)
- Yan-Biao Chu
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China; Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Jun Li
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China; Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Pingdong Jia
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China; Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Jiyun Cui
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China; Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Ronghua Zhang
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China; Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Xueli Kang
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China; Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Meng Lv
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China; Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
| | - Shi Zhang
- Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China; Department of Pulmonary and Critical Care Medicine, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China; Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China.
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143
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Song D, Zhao M, Feng L, Wang P, Li Y, Li W. Salidroside attenuates acute lung injury via inhibition of inflammatory cytokine production. Biomed Pharmacother 2021; 142:111949. [PMID: 34325302 DOI: 10.1016/j.biopha.2021.111949] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/10/2021] [Accepted: 07/14/2021] [Indexed: 12/27/2022] Open
Abstract
Acute lung injury is a fatal condition characterized by excessive inflammation responses. Salidroside, the active constituent of Rhodiola rosea, possesses properties including anti-oxidation, anti-aging, anti-inflammatory, anti-hypoxia, and anti-cancer activities. In the present study, Salidroside attenuated acute lung injury via inhibition of inflammatory cytokine production. Rats pre-treated with Salidroside showed attenuated lipopolysaccharide (LPS)-induced pathological damage and suppressed tumor necrosis factor-alpha (TNFα) and interleukin 6 (IL-6) secretion in the lung. Furthermore, flow cytometry showed that Salidroside reduced the production of TNFα and IL-6 in NR8383 alveolar macrophages. These findings suggest that Salidroside may attenuate LPS-induced acute lung injury.
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Affiliation(s)
- Dan Song
- Engineering Research Center of Tibetan Medicine Detection Technology, Ministry of Education, School of Medicine, Xizang Minzu University, Xianyang 712082, Shaanxi, China; Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang 712082, Shaanxi, China
| | - Min Zhao
- Engineering Research Center of Tibetan Medicine Detection Technology, Ministry of Education, School of Medicine, Xizang Minzu University, Xianyang 712082, Shaanxi, China; Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang 712082, Shaanxi, China
| | - Liuxiang Feng
- People's Hospital of Yulong Naxi Autonomous County of Lijiang City, Yulong Naxi Autonomous County 674100, Yunnan, China
| | - Pingyi Wang
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang 712082, Shaanxi, China
| | - Yimei Li
- Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang 712082, Shaanxi, China
| | - Wenhua Li
- Engineering Research Center of Tibetan Medicine Detection Technology, Ministry of Education, School of Medicine, Xizang Minzu University, Xianyang 712082, Shaanxi, China; Key Laboratory for Molecular Genetic Mechanisms and Intervention Research on High Altitude Disease of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang 712082, Shaanxi, China.
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Sun L, Wang R, Wu C, Gong J, Ma H, Fung SY, Yang H. The Modulatory Activity of Tryptophan Displaying Nanodevices on Macrophage Activation for Preventing Acute Lung Injury. Front Immunol 2021; 12:750128. [PMID: 34659253 PMCID: PMC8516359 DOI: 10.3389/fimmu.2021.750128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/15/2021] [Indexed: 02/05/2023] Open
Abstract
Macrophages play an important role in the initiation, progression and resolution of inflammation in many human diseases. Effective regulation of their activation and immune responses could be a promising therapeutic strategy to manage various inflammatory conditions. Nanodevices that naturally target macrophages are ideal agents to regulate immune responses of macrophages. Here we described a special tryptophan (Trp)-containing hexapeptide-coated gold nanoparticle hybrid, PW, which had unique immunomodulatory activities on macrophages. The Trp residues enabled PW higher affinity to cell membranes, and contributed to inducing mild pro-inflammatory responses of NF-κB/AP-1 activation. However, in the presence of TLR stimuli, PW exhibited potent anti-inflammatory activities through inhibiting multiple TLR signaling pathways. Mechanistically, PW was internalized primarily through micropinocytosis pathway into macrophages and attenuated the endosomal acidification process, and hence preferentially affected the endosomal TLR signaling. Interestingly, PW could induce the expression of the TLR negative regulator IRAK-M, which may also contribute to the observed TLR inhibitory activities. In two acute lung injury (ALI) mouse models, PW could effectively ameliorate lung inflammation and protect lung from injuries. This work demonstrated that nanodevices with thoughtful design could serve as novel immunomodulatory agents to manage the dysregulated inflammatory responses for treating many chronic and acute inflammatory conditions, such as ALI.
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Affiliation(s)
- Liya Sun
- School of Biomedical Engineering and The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin, China
| | - Rui Wang
- School of Biomedical Engineering and The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin, China
| | - Chenchen Wu
- Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Jiameng Gong
- School of Biomedical Engineering and The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin, China
| | - Huiqiang Ma
- School of Biomedical Engineering and The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin, China
| | - Shan-Yu Fung
- Key Laboratory of Immune Microenvironment and Disease of the Ministry of Education and Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Hong Yang
- School of Biomedical Engineering and The Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin, China
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Chicken bone marrow mesenchymal stem cells improve lung and distal organ injury. Sci Rep 2021; 11:17937. [PMID: 34508136 PMCID: PMC8433226 DOI: 10.1038/s41598-021-97383-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/23/2021] [Indexed: 02/07/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are associated with pulmonary protection and longevity. We separated chicken bone marrow-derived mesenchymal stem cells (BM-MSCs); investigated whether BM-MSCs can improve lipopolysaccharide (LPS)-induced lung and distal organ injury; and explored the underlying mechanisms. Ninety-six male ICR (6 weeks old) mice were randomly divided into three groups: Sham, LPS, and LPS + MSC groups. The mice were intratracheally injected with 5 mg/kg LPS to induce acute lung injury (ALI). The histopathological severity of injury to the lung, liver, kidney, heart, and aortic tissues was detected. Wet/dry ratio, protein concentrations in bronchoalveolar lavage fluid (BALF), BALF cell counts, inflammatory cytokine levels in serum, inflammatory cytokine gene expression, and oxidative stress-related indicators were detected. In addition, a survival analysis was performed in sixty male ICR mice (6 weeks old, 18–20 g). This study used chicken BM-MSCs, which are easier to obtain and more convenient than other animal or human MSCs, and have MSC-associated properties, such as a colony forming ability, multilineage differentiation potential, and certain phenotypes. BM-MSCs administration significantly improved the survival rate, systemic inflammation, and the histopathological severity of lung, liver, kidney, and aortic injury during ALI. BM-MSCs administration reduced the levels of inflammatory factors in BALF, the infiltration of neutrophils, and oxidative stress injury in lung tissue. In addition, BM-MSCs administration reduced TRL4 and Mdy88 mRNA expression during ALI. Chicken BM-MSCs serve as a potential alternative resource for stem cell therapy and exert a prominent effect on LPS-induced ALI and extrapulmonary injury, in part through TRL4/Mdy88 signaling and inhibition of neutrophil inflammation and oxidative stress injury.
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146
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Abstract
Acute respiratory distress syndrome (ARDS) is an acute respiratory illness characterised by bilateral chest radiographical opacities with severe hypoxaemia due to non-cardiogenic pulmonary oedema. The COVID-19 pandemic has caused an increase in ARDS and highlighted challenges associated with this syndrome, including its unacceptably high mortality and the lack of effective pharmacotherapy. In this Seminar, we summarise current knowledge regarding ARDS epidemiology and risk factors, differential diagnosis, and evidence-based clinical management of both mechanical ventilation and supportive care, and discuss areas of controversy and ongoing research. Although the Seminar focuses on ARDS due to any cause, we also consider commonalities and distinctions of COVID-19-associated ARDS compared with ARDS from other causes.
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Affiliation(s)
- Nuala J Meyer
- Pulmonary, Allergy and Critical Care Division, University of Pennsylvania School of Medicine, Philadelphia, PA, USA.
| | - Luciano Gattinoni
- Department of Anesthesiology, Intensive Care and Emergency Medicine, University Medical Center Göttingen, Göttingen, Germany
| | - Carolyn S Calfee
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Departments of Medicine and Anesthesia, University of California San Francisco, San Francisco, CA, USA
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147
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Yang L, Gao C, Li F, Yang L, Chen J, Guo S, He Y, Guo Q. Monocyte-to-lymphocyte ratio is associated with 28-day mortality in patients with acute respiratory distress syndrome: a retrospective study. J Intensive Care 2021; 9:49. [PMID: 34362458 PMCID: PMC8342981 DOI: 10.1186/s40560-021-00564-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/15/2021] [Indexed: 01/28/2023] Open
Abstract
Background Systemic inflammation relates to the initiation and progression of acute respiratory distress syndrome (ARDS). Neutrophil-to-lymphocyte ratio (NLR) and red blood cell distribution width (RDW)/albumin ratio have been reported to be predictive prognostic biomarkers in ARDS patients. However, the role of monocyte-to-lymphocyte ratio (MLR) as a prognostic inflammatory biomarker in a variety of diseases is rarely mentioned in ARDS. In this study, we explored the relationship between MLR and disease severity in ARDS patients and compared it with other indicators associated with 28-day mortality in patients with ARDS. Methods We retrospectively included 268 patients who fulfilled the Berlin definition of ARDS and were admitted to a single institute from 2016 to 2020. Clinical characteristics and experimental test data were collected from medical records within 24 h after the ARDS diagnosis. MLR, NLR, and RDW/albumin ratio levels were calculated. The primary clinical outcome was 28-day mortality. Logistic regression analysis was used to illustrate the relationship between indicators and 28-day mortality. Receiver operating characteristic (ROC) curve was used to evaluate the area under the curve (AUC), and propensity score matching (PSM) was employed to validate our findings. Results The median MLR values were higher for non-survivors than for survivors before and after matching (P<0.001, P=0.001, respectively). MLR values were significantly associated with 28-day mortality (OR 2.956; 95% CI 1.873–4.665; P<0.001). MLR and NLR indicators were combined for predictive efficacy analysis, and its AUC reached 0.750. There was a significant increase in 28-day mortality depending on the increasing MLR level: low MLR group 38 (20.4%), high MLR group 47 (57.3%) (P<0.001). Conclusions Higher MLR values were associated with 28-day mortality in patients with ARDS. Further investigation is required to verify this relationship with prospectively collected data. Supplementary Information The online version contains supplementary material available at 10.1186/s40560-021-00564-6.
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Affiliation(s)
- Lijuan Yang
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Chang Gao
- Department of Critical Care Medicine, Suzhou Dushuhu Public Hospital (Dushuhu Public Hospital Affiliated to Soochow University, Medical Center of Soochow University), Suzhou, Jiangsu, China
| | - Fengyuan Li
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ling Yang
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Jiahao Chen
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Shiqi Guo
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ying He
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Qiang Guo
- Pneumology Department, Department of Emergency, Department of Critical Care Medicine, Suzhou Dushuhu Public Hospital (Dushuhu Public Hospital Affiliated to Soochow University, Medical Center of Soochow University), The First Affiliated Hospital of Soochow University, No.9 Chongwen Road, Suzhou Industrial Park, Suzhou, Jiangsu, China.
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148
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Ham J, Kim J, Choi S, Park J, Baek MG, Kim YC, Sohn KH, Cho SH, Yang S, Bae YS, Chung DH, Won S, Yi H, Kang HR, Kim HY. Interactions between NCR +ILC3s and the Microbiome in the Airways Shape Asthma Severity. Immune Netw 2021; 21:e25. [PMID: 34522438 PMCID: PMC8410993 DOI: 10.4110/in.2021.21.e25] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/13/2021] [Accepted: 07/16/2021] [Indexed: 12/01/2022] Open
Abstract
Asthma is a heterogeneous disease whose development is shaped by a variety of environmental and genetic factors. While several recent studies suggest that microbial dysbiosis in the gut may promote asthma, little is known about the relationship between the recently discovered lung microbiome and asthma. Innate lymphoid cells (ILCs) have also been shown recently to participate in asthma. To investigate the relationship between the lung microbiome, ILCs, and asthma, we recruited 23 healthy controls (HC), 42 patients with non-severe asthma, and 32 patients with severe asthma. Flow cytometry analysis showed severe asthma associated with fewer natural cytotoxicity receptor (NCR)+ILC3s in the lung. Similar changes in other ILC subsets, macrophages, and monocytes were not observed. The asthma patients did not differ from the HC in terms of the alpha and beta-diversity of the lung and gut microbiomes. However, lung function correlated positively with both NCR+ILC3 frequencies and microbial diversity in the lung. Sputum NCR+ILC3 frequencies correlated positively with lung microbiome diversity in the HC, but this relationship was inversed in severe asthma. Together, these data suggest that airway NCR+ILC3s may contribute to a healthy commensal diversity and normal lung function.
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Affiliation(s)
- Jongho Ham
- Laboratory of Mucosal Immunology, Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, BK21 Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, Korea
| | - Jihyun Kim
- Laboratory of Mucosal Immunology, Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
| | - Sungmi Choi
- Interdisciplinary Program in Precision Public Health, Korea University, Seoul, Korea
| | - Jaehyun Park
- Interdisciplinary Program in Bioinformatics, Seoul National University College of Natural Sciences, Seoul, Korea
| | - Min-gyung Baek
- Interdisciplinary Program in Precision Public Health, Korea University, Seoul, Korea
| | - Young-Chan Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Kyoung-Hee Sohn
- Department of Internal Medicine, Kyung Hee University Hospital, Seoul, Korea
| | - Sang-Heon Cho
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Siyoung Yang
- Department of Pharmacology, Ajou University School of Medicine, Suwon, Korea
- Department of Biomedical Sciences, Graduate School, Ajou University School of Medicine, Suwon, Korea
- Center for Immune Research on Non-Lymphoid Organ (CIRNO), Sungkyunkwan University, Suwon, Korea
| | - Yong-Soo Bae
- Center for Immune Research on Non-Lymphoid Organ (CIRNO), Sungkyunkwan University, Suwon, Korea
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Korea
| | - Doo Hyun Chung
- Department of Biomedical Sciences, BK21 Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, Korea
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
- Laboratory of Immune Regulation, Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Sungho Won
- Department of Public Health Sciences, Seoul National University, Seoul, Korea
- RexSoft Corps, Seoul, Korea
- Institute of Health and Environment, Seoul National University, Seoul, Korea
| | - Hana Yi
- Interdisciplinary Program in Precision Public Health, Korea University, Seoul, Korea
- School of Biosystems and Biomedical Sciences, Korea University, Seoul, Korea
| | - Hye Ryun Kang
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Hye Young Kim
- Laboratory of Mucosal Immunology, Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, BK21 Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, Korea
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
- Center for Immune Research on Non-Lymphoid Organ (CIRNO), Sungkyunkwan University, Suwon, Korea
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149
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Shotland AM, Fontenot AP, McKee AS. Pulmonary Macrophage Cell Death in Lung Health and Disease. Am J Respir Cell Mol Biol 2021; 64:547-556. [PMID: 33332993 DOI: 10.1165/rcmb.2020-0420tr] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Over the last several decades, our understanding of regulated-cell-death (RCD) pathways has increased dramatically. In addition to apoptosis and accidental cell death (primary necrosis), a diverse spectrum of RCD pathways has been delineated. In the lung, airway macrophages are critical for maintaining the functionality of airways via the clearance of inhaled particles, cell debris, and infectious agents. Exposure of these cells to pathogenic organisms or particles can induce a variety of RCD pathways that promote the release of danger signals into the lung. These responses have evolved to trigger the innate and adaptive arms of the immune system and thus offer protection against pathogens; yet they can also contribute to the development of lung injury and pathogenic immune responses. In this review, we discuss recent studies that suggest a critical role for airway-macrophage RCD pathways in promoting the release of pulmonary danger signals in health and disease.
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Affiliation(s)
- Abigail M Shotland
- Division of Allergy and Clinical Immunology, Department of Medicine, and
| | - Andrew P Fontenot
- Division of Allergy and Clinical Immunology, Department of Medicine, and.,Department of Microbiology and Immunology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Amy S McKee
- Division of Allergy and Clinical Immunology, Department of Medicine, and.,Department of Microbiology and Immunology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
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150
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Rochford I, Joshi JC, Rayees S, Anwar M, Akhter MZ, Yalagala L, Banerjee S, Mehta D. Evidence for reprogramming of monocytes into reparative alveolar macrophages in vivo by targeting PDE4b. Am J Physiol Lung Cell Mol Physiol 2021; 321:L686-L702. [PMID: 34318714 DOI: 10.1152/ajplung.00145.2021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Increased lung vascular permeability and neutrophilic inflammation are hallmarks of acute lung injury. Alveolar macrophages (AMϕ), the predominant sentinel cell type in the airspace, die in massive numbers while fending off pathogens. Recent studies indicate that the AMϕ pool is replenished by airspace-recruited monocytes, but the mechanisms instructing the conversion of recruited monocytes into reparative AMϕ remain elusive. Cyclic AMP (cAMP) is a vascular barrier protective and immunosuppressive second messenger in the lung. Here, we subjected mice expressing GFP under the control of the Lysozyme-M promoter (LysM-GFP mice) to the LPS model of rapidly resolving lung injury to address the impact of mechanisms determining cAMP levels in AMϕ and regulation of mobilization of the reparative AMϕ-pool. RNA-seq analysis of flow-sorted Mϕ identified phosphodiesterase 4b (PDE4b) as the top LPS-responsive cAMP-regulating gene. We observed that PDE4b expression markedly increased at the time of peak injury (4 h) and then decreased to below the basal level during the resolution phase (24 h). Activation of transcription factor NFATc2 was required for transcription of PDE4b in Mϕ. Inhibition of PDE4 activity at the time of peak injury, using i.t. rolipram, increased cAMP levels, augmented the reparative AMϕ pool, and resolved lung injury. This response was not seen following conditional depletion of monocytes, thus establishing airspace-recruited PDE4b-sensitive monocytes as the source of reparative AMϕ. Interestingly, adoptive transfer of rolipram-educated AMϕ into injured mice resolved lung edema. We propose suppression of PDE4b as an effective approach to promote reparative AMϕ generation from monocytes for lung repair.
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Affiliation(s)
- Ian Rochford
- Department of Pharmacology and Regenerative Medicine and Centre for Lung and Vascular Biology, University of Illinois at Chicago, Chicago, IL, United States
| | - Jagdish Chandra Joshi
- Department of Pharmacology and Regenerative Medicine and Centre for Lung and Vascular Biology, University of Illinois at Chicago, Chicago, IL, United States
| | - Sheikh Rayees
- Department of Pharmacology and Regenerative Medicine and Centre for Lung and Vascular Biology, University of Illinois at Chicago, Chicago, IL, United States
| | - Mumtaz Anwar
- Department of Pharmacology and Regenerative Medicine and Centre for Lung and Vascular Biology, University of Illinois at Chicago, Chicago, IL, United States
| | - Md Zahid Akhter
- Department of Pharmacology and Regenerative Medicine and Centre for Lung and Vascular Biology, University of Illinois at Chicago, Chicago, IL, United States
| | - Lakshmi Yalagala
- Department of Pharmacology and Regenerative Medicine and Centre for Lung and Vascular Biology, University of Illinois at Chicago, Chicago, IL, United States
| | - Somenath Banerjee
- Department of Pharmacology and Regenerative Medicine and Centre for Lung and Vascular Biology, University of Illinois at Chicago, Chicago, IL, United States
| | - Dolly Mehta
- Department of Pharmacology and Regenerative Medicine and Centre for Lung and Vascular Biology, University of Illinois at Chicago, Chicago, IL, United States
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