1
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Efficacy of Clinically Used PARP Inhibitors in a Murine Model of Acute Lung Injury. Cells 2022; 11:cells11233789. [PMID: 36497049 PMCID: PMC9738530 DOI: 10.3390/cells11233789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Poly(ADP-ribose) polymerase 1 (PARP1), as a potential target for the experimental therapy of acute lung injury (ALI), was identified over 20 years ago. However, clinical translation of this concept was not possible due to the lack of clinically useful PARP inhibitors. With the clinical introduction of several novel, ultrapotent PARP inhibitors, the concept of PARP inhibitor repurposing has re-emerged. Here, we evaluated the effect of 5 clinical-stage PARP inhibitors in oxidatively stressed cultured human epithelial cells and monocytes in vitro and demonstrated that all inhibitors (1-30 µM) provide a comparable degree of cytoprotection. Subsequent in vivo studies using a murine model of ALI compared the efficacy of olaparib and rucaparib. Both inhibitors (1-10 mg/kg) provided beneficial effects against lung extravasation and pro-inflammatory mediator production-both in pre- and post-treatment paradigms. The underlying mechanisms include protection against cell dysfunction/necrosis, inhibition of NF-kB and caspase 3 activation, suppression of the NLRP3 inflammasome, and the modulation of pro-inflammatory mediators. Importantly, the efficacy of PARP inhibitors was demonstrated without any potentiation of DNA damage, at least as assessed by the TUNEL method. These results support the concept that clinically approved PARP inhibitors may be repurposable for the experimental therapy of ALI.
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2
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Szabo C, Martins V, Liaudet L. Poly(ADP-Ribose) Polymerase Inhibition in Acute Lung Injury. A Reemerging Concept. Am J Respir Cell Mol Biol 2020; 63:571-590. [PMID: 32640172 PMCID: PMC7605157 DOI: 10.1165/rcmb.2020-0188tr] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/08/2020] [Indexed: 12/15/2022] Open
Abstract
PARP1, the major isoform of a family of ADP-ribosylating enzymes, has been implicated in the regulation of various biological processes including DNA repair, gene transcription, and cell death. The concept that PARP1 becomes activated in acute lung injury (ALI) and that pharmacological inhibition or genetic deletion of this enzyme can provide therapeutic benefits emerged over 20 years ago. The current article provides an overview of the cellular mechanisms involved in the pathogenetic roles of PARP1 in ALI and provides an overview of the preclinical data supporting the efficacy of PARP (poly[ADP-ribose] polymerase) inhibitors. In recent years, several ultrapotent PARP inhibitors have been approved for clinical use (for the therapy of various oncological diseases): these newly-approved PARP inhibitors were recently reported to show efficacy in animal models of ALI. These observations offer the possibility of therapeutic repurposing of these inhibitors for patients with ALI. The current article lays out a potential roadmap for such repurposing efforts. In addition, the article also overviews the scientific basis of potentially applying PARP inhibitors for the experimental therapy of viral ALI, such as coronavirus disease (COVID-19)-associated ALI.
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Affiliation(s)
- Csaba Szabo
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Fribourg, Switzerland; and
| | - Vanessa Martins
- Chair of Pharmacology, Section of Medicine, University of Fribourg, Fribourg, Switzerland; and
| | - Lucas Liaudet
- Service of Adult Intensive Care Medicine, University Hospital Medical Center, Lausanne University, Lausanne, Switzerland
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3
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Huang Y, Shen L, Jiang J, Xu Q, Luo Z, Luo Q, Yu S, Yao X, Ren Z, Hu Y, Yang Y, Cao S. Metabolomic Profiles of Bovine Mammary Epithelial Cells Stimulated by Lipopolysaccharide. Sci Rep 2019; 9:19131. [PMID: 31836784 PMCID: PMC6911109 DOI: 10.1038/s41598-019-55556-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 11/30/2019] [Indexed: 12/20/2022] Open
Abstract
Bovine mammary epithelial cells (bMECs) are the main cells of the dairy cow mammary gland. In addition to their role in milk production, they are effector cells of mammary immunity. However, there is little information about changes in metabolites of bMECs when stimulated by lipopolysaccharide (LPS). This study describes a metabolomics analysis of the LPS-stimulated bMECs to provide a basis for the identification of potential diagnostic screening biomarkers and possible treatments for bovine mammary gland inflammation. In the present study, bMECs were challenged with 500 ng/mL LPS and samples were taken at 0 h, 12 h and 24 h post stimulation. Metabolic changes were investigated using high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF MS) with univariate and multivariate statistical analyses. Clustering and metabolic pathway changes were established by MetaboAnalyst. Sixty-three differential metabolites were identified, including glycerophosphocholine, glycerol-3-phosphate, L-carnitine, L-aspartate, glutathione, prostaglandin G2, α-linolenic acid and linoleic acid. They were mainly involved in eight pathways, including D-glutamine and D-glutamic acid metabolism; linoleic acid metabolism; α-linolenic metabolism; and phospholipid metabolism. The results suggest that bMECs are able to regulate pro-inflammatory, anti-inflammatory, antioxidation and energy-producing related metabolites through lipid, antioxidation and energy metabolism in response to inflammatory stimuli.
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Affiliation(s)
- Yixin Huang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China.,Institute of Biodiversity Animal Health & Comparative Medicine, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Liuhong Shen
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China
| | - Jing Jiang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China
| | - Qipin Xu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China
| | - Zhengzhong Luo
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China
| | - Qiao Luo
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China
| | - Shumin Yu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China
| | - Xueping Yao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China
| | - Zhihua Ren
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China
| | - Yanchun Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China.,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China
| | - Yongxin Yang
- Institute of Animal Science and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei, 230031, China
| | - Suizhong Cao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China. .,Sichuan Provincial Key Laboratory of Animal Diseases and Human Health, Chengdu, 611130, China.
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4
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Tojo K, Tamada N, Nagamine Y, Yazawa T, Ota S, Goto T. Enhancement of glycolysis by inhibition of oxygen-sensing prolyl hydroxylases protects alveolar epithelial cells from acute lung injury. FASEB J 2018; 32:2258-2268. [PMID: 32172532 DOI: 10.1096/fj.201700888r] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/04/2017] [Indexed: 01/17/2023]
Abstract
Cellular bioenergetic failure caused by mitochondrial dysfunction is a key process of alveolar epithelial injury during acute respiratory distress syndrome (ARDS). Prolyl hydroxylases (PHDs) act as cellular oxygen sensors, and their inhibition activates hypoxia-inducible factor (HIF), resulting in enhanced cellular glycolytic activity, which could compensate for impaired mitochondrial function and protect alveolar epithelial cells from ARDS. Here, we evaluated the effects of pharmacological PHD inhibition with dimethyloxalylglycine (DMOG) on alveolar epithelial cell injury using in vitro and in vivo ARDS models. We established an in vitro model of alveolar epithelial injury mimicking ARDS by adding isolated neutrophils and LPS to cultured MLE12 alveolar epithelial cells. DMOG treatment protected MLE12 cells from neutrophil-LPS-induced ATP decline and cell death. Knockdown of HIF-1α or inhibition of glycolysis abolished the protective effect of DMOG, suggesting that it was exerted by HIF-1-dependent enhancement of glycolysis. Additionally, intratracheal DMOG administration to mice protected the alveolar epithelial barrier and improved arterial oxygenation, preventing ATP decline during LPS-induced lung injury. In summary, enhancement of glycolysis by PHD inhibition is a potential therapeutic approach for ARDS, protecting alveolar epithelial cells from bioenergetic failure and cell death.- Tojo, K., Tamada, N., Nagamine, Y., Yazawa, T., Ota, S., Goto, T. Enhancement of glycolysis by inhibition of oxygen-sensing prolyl hydroxylases protects alveolar epithelial cells from acute lung injury. FASEB J. 32, 2258-2268 (2018). www.fasebj.org.
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Affiliation(s)
- Kentaro Tojo
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Nao Tamada
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Yusuke Nagamine
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Takuya Yazawa
- Department of Pathology, Dokkyo Medical University, Tochigi, Japan
| | - Shuhei Ota
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Takahisa Goto
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
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Poly-ADP-ribose polymerase inhibition provides protection against lung injury in a rat paraquat toxicity model. Inflammopharmacology 2016; 24:155-61. [DOI: 10.1007/s10787-016-0268-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/18/2016] [Indexed: 11/25/2022]
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6
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Li P, Liao S, Wang J, Xu D, Zhang Q, Yang M, Kong L. NMR metabolic profiling of lipopolysaccharide-induced mice sepsis and the treatment effects of berberine. RSC Adv 2016. [DOI: 10.1039/c6ra04717c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
1H NMR metabolomics to study lipopolysaccharide-induced mice sepsis and the treatment effects of berberine.
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Affiliation(s)
- Pei Li
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Shanting Liao
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Junsong Wang
- Center for Molecular Metabolism
- School of Environmental and Biological Engineering
- Nanjing University of Science and Technology
- Nanjing
- P. R. China
| | - Dingqiao Xu
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Qian Zhang
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Minghua Yang
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Lingyi Kong
- State Key Laboratory of Natural Medicines
- Department of Natural Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
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7
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Weiss R, Schilling E, Grahnert A, Kölling V, Dorow J, Ceglarek U, Sack U, Hauschildt S. Nicotinamide: a vitamin able to shift macrophage differentiation toward macrophages with restricted inflammatory features. Innate Immun 2015; 21:813-26. [PMID: 26385774 DOI: 10.1177/1753425915602545] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 07/23/2015] [Indexed: 12/31/2022] Open
Abstract
The differentiation of human monocytes into macrophages is influenced by environmental signals. Here we asked in how far nicotinamide (NAM), a vitamin B3 derivative known to play a major role in nicotinamide adenine dinucleotide (NAD)-mediated signaling events, is able to modulate monocyte differentiation into macrophages developed in the presence of granulocyte macrophage colony-stimulating factor (GM-MØ) or macrophage colony-stimulating factor (M-MØ). We found that GM-MØ undergo biochemical, morphological and functional modifications in response to NAM, whereas M-MØ were hardly affected. GM-MØ exposed to NAM acquired an M-MØ-like structure while the LPS-induced production of pro-inflammatory cytokines and COX-derived eicosanoids were down-regulated. In contrast, NAM had no effect on the production of IL-10 or the cytochrome P450-derived eicosanoids. Administration of NAM enhanced intracellular NAD concentrations; however, it did not prevent the LPS-mediated drain on NAD pools. In search of intracellular molecular targets of NAM known to be involved in LPS-induced cytokine and eicosanoid synthesis, we found NF-κB activity to be diminished. In conclusion, our data show that vitamin B3, when present during the differentiation of monocytes into GM-MØ, interferes with biochemical pathways resulting in strongly reduced pro-inflammatory features.
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Affiliation(s)
- Ronald Weiss
- University of Leipzig, Translational Centre for Regenerative Medicine (TRM) Leipzig, Leipzig, Germany University Hospital Leipzig, Institute for Clinical Immunology, Leipzig, Germany University of Leipzig, Institute of Biology, Leipzig, Germany
| | - Erik Schilling
- University of Leipzig, Translational Centre for Regenerative Medicine (TRM) Leipzig, Leipzig, Germany University Hospital Leipzig, Institute for Clinical Immunology, Leipzig, Germany
| | - Anja Grahnert
- University of Leipzig, Translational Centre for Regenerative Medicine (TRM) Leipzig, Leipzig, Germany University Hospital Leipzig, Institute for Clinical Immunology, Leipzig, Germany
| | - Valeen Kölling
- University of Leipzig, Translational Centre for Regenerative Medicine (TRM) Leipzig, Leipzig, Germany University Hospital Leipzig, Institute for Clinical Immunology, Leipzig, Germany University of Leipzig, Institute of Biology, Leipzig, Germany
| | - Juliane Dorow
- University Hospital Leipzig, Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, Leipzig, Germany University of Leipzig, LIFE - Leipzig Research Center for Civilization Diseases, Leipzig, Germany
| | - Uta Ceglarek
- University Hospital Leipzig, Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, Leipzig, Germany University of Leipzig, LIFE - Leipzig Research Center for Civilization Diseases, Leipzig, Germany
| | - Ulrich Sack
- University of Leipzig, Translational Centre for Regenerative Medicine (TRM) Leipzig, Leipzig, Germany University Hospital Leipzig, Institute for Clinical Immunology, Leipzig, Germany
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Acute lung injury and acute respiratory distress syndrome: experimental and clinical investigations. J Geriatr Cardiol 2012; 8:44-54. [PMID: 22783284 PMCID: PMC3390060 DOI: 10.3724/sp.j.1263.2011.00044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Revised: 03/12/2011] [Accepted: 03/19/2011] [Indexed: 01/11/2023] Open
Abstract
Acute lung injury (ALI) or acute respiratory distress syndrome (ARDS) can be associated with various disorders. Recent investigation has involved clinical studies in collaboration with clinical investigators and pathologists on the pathogenetic mechanisms of ALI or ARDS caused by various disorders. This literature review includes a brief historical retrospective of ALI/ARDS, the neurogenic pulmonary edema due to head injury, the long-term experimental studies and clinical investigations from our laboratory, the detrimental role of NO, the risk factors, and the possible pathogenetic mechanisms as well as therapeutic regimen for ALI/ARDS.
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Islam MN, Das SR, Emin MT, Wei M, Sun L, Westphalen K, Rowlands DJ, Quadri SK, Bhattacharya S, Bhattacharya J. Mitochondrial transfer from bone-marrow-derived stromal cells to pulmonary alveoli protects against acute lung injury. Nat Med 2012; 18:759-65. [PMID: 22504485 DOI: 10.1038/nm.2736] [Citation(s) in RCA: 1011] [Impact Index Per Article: 84.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Accepted: 03/16/2012] [Indexed: 12/11/2022]
Abstract
Bone marrow-derived stromal cells (BMSCs) protect against acute lung injury (ALI). To determine the role of BMSC mitochondria in this protection, we airway-instilled mice first with lipopolysaccharide (LPS) and then with either mouse BMSCs (mBMSCs) or human BMSCs (hBMSCs). Live optical studies revealed that the mBMSCs formed connexin 43 (Cx43)-containing gap junctional channels (GJCs) with the alveolar epithelia in these mice, releasing mitochondria-containing microvesicles that the epithelia engulfed. The presence of BMSC-derived mitochondria in the epithelia was evident optically, as well as by the presence of human mitochondrial DNA in mouse lungs instilled with hBMSCs. The mitochondrial transfer resulted in increased alveolar ATP concentrations. LPS-induced ALI, as indicated by alveolar leukocytosis and protein leak, inhibition of surfactant secretion and high mortality, was markedly abrogated by the instillation of wild-type mBMSCs but not of mutant, GJC-incompetent mBMSCs or mBMSCs with dysfunctional mitochondria. This is the first evidence, to our knowledge, that BMSCs protect against ALI by restituting alveolar bioenergetics through Cx43-dependent alveolar attachment and mitochondrial transfer.
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Affiliation(s)
- Mohammad Naimul Islam
- Lung Biology Laboratory, Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, College of Physicians and Surgeons of Columbia University, New York, New York, USA
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Su CF, Kao SJ, Chen HI. Acute respiratory distress syndrome and lung injury: Pathogenetic mechanism and therapeutic implication. World J Crit Care Med 2012; 1:50-60. [PMID: 24701402 PMCID: PMC3953859 DOI: 10.5492/wjccm.v1.i2.50] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 10/14/2011] [Accepted: 03/10/2012] [Indexed: 02/06/2023] Open
Abstract
To review possible mechanisms and therapeutics for acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). ALI/ARDS causes high mortality. The risk factors include head injury, intracranial disorders, sepsis, infections and others. Investigations have indicated the detrimental role of nitric oxide (NO) through the inducible NO synthase (iNOS). The possible therapeutic regimen includes extracorporeal membrane oxygenation, prone position, fluid and hemodynamic management and permissive hypercapnic acidosis etc. Other pharmacological treatments are anti-inflammatory and/or antimicrobial agents, inhalation of NO, glucocorticoids, surfactant therapy and agents facilitating lung water resolution and ion transports. β-adrenergic agonists are able to accelerate lung fluid and ion removal and to stimulate surfactant secretion. In conscious rats, regular exercise training alleviates the endotoxin-induced ALI. Propofol and N-acetylcysteine exert protective effect on the ALI induced by endotoxin. Insulin possesses anti-inflammatory effect. Pentobarbital is capable of reducing the endotoxin-induced ALI. In addition, nicotinamide or niacinamide abrogates the ALI caused by ischemia/reperfusion or endotoxemia. This review includes historical retrospective of ALI/ARDS, the neurogenic pulmonary edema due to head injury, the detrimental role of NO, the risk factors, and the possible pathogenetic mechanisms as well as therapeutic regimen for ALI/ARDS.
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Affiliation(s)
- Chain-Fa Su
- Chain-Fa Su, Department of Neurosurgery, Tzu Chi University Hospital, Hualien 97004, Taiwan, China
| | - Shang Jyh Kao
- Chain-Fa Su, Department of Neurosurgery, Tzu Chi University Hospital, Hualien 97004, Taiwan, China
| | - Hsing I Chen
- Chain-Fa Su, Department of Neurosurgery, Tzu Chi University Hospital, Hualien 97004, Taiwan, China
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11
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Lin CC, Hsieh NK, Liou HL, Chen HI. Niacinamide mitigated the acute lung injury induced by phorbol myristate acetate in isolated rat's lungs. J Biomed Sci 2012; 19:27. [PMID: 22375599 PMCID: PMC3311060 DOI: 10.1186/1423-0127-19-27] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 03/01/2012] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Phorbol myristate acetate (PMA) is a strong neutrophil activator and has been used to induce acute lung injury (ALI). Niacinamide (NAC) is a compound of B complex. It exerts protective effects on the ALI caused by various challenges. The purpose was to evaluate the protective effects of niacinamide (NAC) on the PMA-induced ALI and associated changes. METHODS The rat's lungs were isolated in situ and perfused with constant flow. A total of 60 isolated lungs were randomized into 6 groups to received Vehicle (DMSO 100 μg/g), PMA 4 μg/g (lung weight), cotreated with NAC 0, 100, 200 and 400 mg/g (lung weight). There were 10 isolated lungs in each group. We measured the lung weight and parameters related to ALI. The pulmonary arterial pressure and capillary filtration coefficient (Kfc) were determined in isolated lungs. ATP (adenotriphosphate) and PARP [poly(adenosine diphophate-ribose) polymerase] contents in lung tissues were detected. Real-time PCR was employed to display the expression of inducible and endothelial NO synthases (iNOS and eNOS). The neutrophil-derived mediators in lung perfusate were determined. RESULTS PMA caused increases in lung weight parameters. This agent produced pulmonary hypertension and increased microvascular permeability. It resulted in decrease in ATP and increase in PARP. The expression of iNOS and eNOS was upregulated following PMA. PMA increased the neutrophil-derived mediators. Pathological examination revealed lung edema and hemorrhage with inflammatory cell infiltration. Immunohistochemical stain disclosed the presence of iNOS-positive cells in macrophages and endothelial cells. These pathophysiological and biochemical changes were diminished by NAC treatment. The NAC effects were dose-dependent. CONCLUSIONS Our results suggest that neutrophil activation and release of neutrophil-derived mediators by PMA cause ALI and associated changes. NO production through the iNOS-producing cells plays a detrimental role in the PMA-induced lung injury. ATP is beneficial, while PARP plays a deteriorative effect on the PMA-induced ALI. NAC exerts protective effects on the inflammatory cascade leading to pulmonary injury. This B complex compound may be applied for clinical usage and therapeutic regimen.
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Affiliation(s)
- Chia-Chih Lin
- Department of Physical Education and Kinesiology, National Dong Hwa University, Hualien, Taiwan
| | - Nan-Kuang Hsieh
- Department of Family Medicine, Tao-Yuan General Hospital, Department of Health, Executive Yuan, Taoyuan, Taiwan
- Department of Pathology, China Medical University, Taichung, Taiwan
| | - Huey Ling Liou
- Department of Nursing, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hsing I Chen
- Institute of Physiological and Anatomical Medicine, Tzu Chi University, Hualien, Taiwan
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12
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Lin CC, Liu PH, Kao SJ, Chen HI. Effects of phorbol myristate acetate and sivelestat on the lung injury caused by fat embolism in isolated lungs. J Biomed Sci 2012; 19:3. [PMID: 22216930 PMCID: PMC3265425 DOI: 10.1186/1423-0127-19-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 01/05/2012] [Indexed: 11/10/2022] Open
Abstract
Background Fat embolism syndrome (FES) associated with acute lung injury (ALI) is a clinical condition following long bone fracture. We have reported 14 victims due to ALI with FES. Our laboratory has developed an animal model that produced fat emboli (FE). The major purpose of this study was to test whether neutrophil activation with phorbol myristate acetate (PMA) and inhibition with sivelestat (SVT) exert protection on the lung. Methods The lungs of Sprague-Dawley rats were isolated and perfused. FE was produced by addition of corn oil micelles into the lung perfusate. PMA and SVT were given simultaneously with FE. Parameters such as lung weight/body weight ratio, LW gain, exhaled nitric oxide (NO), protein concentration in bronchoalveolar lavage relating to ALI were measured. The neutrophil elastase (NE), myeloperoxidase, malondialdehyde and phopholipase A2 activity were determined. We also measured the nitrate/nitrite, methyl guanidine (MG), and cytokines. Pulmonary arterial pressure and microvascular permeability were assessed. Lung pathology was examined and scored. The inducible and endothelial NO synthase (iNOS and eNOS) were detected. Results FE caused ALI and increased biochemical factors. The challenge also resulted in pulmonary hypertension and increased microvascular permeability. The NE appeared to be the first to reach its peak at 1 hr, followed by other factors. Coadministration with PMA exacerbated the FE-induced changes, while SVT attenuated the effects of FE. Conclusions The FE-induced lung changes were enhanced by PMA, while SVT had the opposite effect. Sivelestat, a neutrophil inhibitor may be a therapeutic choice for patients with acute respiratory distress syndrome (ARDS) following fat embolism.
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Affiliation(s)
- Chia-Chih Lin
- Department of Physical Education and Kinesiology, National Dong Hwa University, Hualien, Taiwan
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13
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Antinociceptive and anti-inflammatory activities of nicotinamide and its isomers in different experimental models. Pharmacol Biochem Behav 2011; 99:782-8. [DOI: 10.1016/j.pbb.2011.07.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 06/30/2011] [Accepted: 07/04/2011] [Indexed: 12/31/2022]
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14
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Fernandes CA, Fievez L, Ucakar B, Neyrinck AM, Fillee C, Huaux F, Delzenne NM, Bureau F, Vanbever R. Nicotinamide enhances apoptosis of G(M)-CSF-treated neutrophils and attenuates endotoxin-induced airway inflammation in mice. Am J Physiol Lung Cell Mol Physiol 2011; 300:L354-61. [DOI: 10.1152/ajplung.00198.2010] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Neutrophils constitute the first line of host defense against invading microorganisms. Yet their removal from the inflammatory environment is fundamental for injury restraint and resolution of inflammation. Nicotinamide, a component of vitamin B3, is known to modulate cell survival. In this study, we assessed the influence of nicotinamide on neutrophil apoptosis, both in vitro and in vivo in a mouse model of endotoxin-induced lung inflammation. In vitro, nicotinamide promoted apoptosis of human blood neutrophils in a dose-dependent manner in the presence of the apoptosis inhibitors granulocyte colony-stimulating factor and granulocyte/macrophage colony-stimulating factor. The highest concentration of nicotinamide completely neutralized the pro-survival effect of granulocyte (macrophage) colony-stimulating factor. Nicotinamide proapoptotic effect was associated with enhanced caspase-3 activity. In addition, nicotinamide slightly reduced neutrophil chemotaxis in vitro. In vivo, pulmonary nicotinamide delivery decreased the levels of cellular and biochemical inflammation markers and increased the percentage of apoptotic neutrophils in bronchoalveolar lavages. Our findings suggest that nicotinamide is an apoptotic stimulus for neutrophils, thereby contributing to the resolution of neutrophilic inflammation in the lungs.
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Affiliation(s)
- Cláudia A. Fernandes
- Unité de Pharmacie Galénique, Louvain Drug Research Institute, Université catholique de Louvain, Brussels
| | - Laurence Fievez
- Laboratory of Cellular and Molecular Physiology, GIGA-Research, University of Liège, Liège
| | - Bernard Ucakar
- Unité de Pharmacie Galénique, Louvain Drug Research Institute, Université catholique de Louvain, Brussels
| | - Audrey M. Neyrinck
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain,
| | - Catherine Fillee
- Department of Clinical Biology, Cliniques Universitaires Saint Luc, and
| | - François Huaux
- Louvain Centre for Toxicology and Applied Pharmacology, Université catholique de Louvain, Brussels, Belgium
| | - Nathalie M. Delzenne
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain,
| | - Fabrice Bureau
- Laboratory of Cellular and Molecular Physiology, GIGA-Research, University of Liège, Liège
| | - Rita Vanbever
- Unité de Pharmacie Galénique, Louvain Drug Research Institute, Université catholique de Louvain, Brussels
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15
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Beneke S. Poly(ADP-ribose) polymerase activity in different pathologies--the link to inflammation and infarction. Exp Gerontol 2008; 43:605-614. [PMID: 18511226 DOI: 10.1016/j.exger.2008.04.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2007] [Revised: 03/25/2008] [Accepted: 04/14/2008] [Indexed: 12/27/2022]
Abstract
DNA repair and aging are two phenomena closely connected to each other. The poly(ADP-ribosyl)ation reaction has been implicated in both of them. Poly(ADP-ribose) was originally discovered as an enzymatic reaction product after DNA damage. Soon it became evident that it is necessary for regulation of different repair pathways. Also, evidence accumulated that poly(ADP-ribose) formation capacity is at least correlated with the life span of mammalian species. As a NAD(+)-consuming process, poly(ADP-ribosyl)ation can lead to cell death by energy depletion. This finding opened the area for investigation of poly(ADP-ribose) polymerase activity and polymer formation in pathologies. This review provides an introduction into the wide and complex field of poly(ADP-ribosyl)ation in different pathologies with regards of cell death regulation, inflammation and resulting tissue damage.
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Affiliation(s)
- Sascha Beneke
- University of Konstanz, Molecular Toxicology Group, Universiteatsstr. 10, Box X911, 78457 Konstanz, Germany
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16
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Aimbire F, Ligeiro de Oliveira AP, Albertini R, Corrêa JC, Ladeira de Campos CB, Lyon JP, Silva JA, Costa MS. Low level laser therapy (LLLT) decreases pulmonary microvascular leakage, neutrophil influx and IL-1beta levels in airway and lung from rat subjected to LPS-induced inflammation. Inflammation 2008; 31:189-97. [PMID: 18421573 DOI: 10.1007/s10753-008-9064-4] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2007] [Accepted: 02/20/2008] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND OBJECTIVE Low level laser therapy (LLLT) is a known anti-inflammatory therapy. Herein we studied the effect of LLLT on lung permeability and the IL-1beta level in LPS-induced pulmonary inflammation. STUDY DESIGN/METHODOLOGY: Rats were divided into 12 groups (n = 7 for each group). Lung permeability was measured by quantifying extravasated albumin concentration in lung homogenate, inflammatory cells influx was determined by myeloperoxidase activity, IL-1beta in BAL was determined by ELISA and IL-1beta mRNA expression in trachea was evaluated by RT-PCR. The rats were irradiated on the skin over the upper bronchus at the site of tracheotomy after LPS. RESULTS LLLT attenuated lung permeability. In addition, there was reduced neutrophil influx, myeloperoxidase activity and both IL-1beta in BAL and IL-1beta mRNA expression in trachea obtained from animals subjected to LPS-induced inflammation. CONCLUSION LLLT reduced the lung permeability by a mechanism in which the IL-1beta seems to have an important role.
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Affiliation(s)
- F Aimbire
- Instituto de Pesquisa & Desenvolvimento-IP&D, Universidade do Vale do Paraíba-UNIVAP, Av. Shishima Hifumi, 2911, CEP: 12244-000, São José dos Campos, São Paulo, Brazil.
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