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Scheraga RG, Southern BD, Grove LM, Olman MA. The Role of Transient Receptor Potential Vanilloid 4 in Pulmonary Inflammatory Diseases. Front Immunol 2017; 8:503. [PMID: 28523001 PMCID: PMC5415870 DOI: 10.3389/fimmu.2017.00503] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 04/12/2017] [Indexed: 01/01/2023] Open
Abstract
Ion channels/pumps are essential regulators of organ homeostasis and disease. In the present review, we discuss the role of the mechanosensitive cation channel, transient receptor potential vanilloid 4 (TRPV4), in cytokine secretion and pulmonary inflammatory diseases such as asthma, cystic fibrosis (CF), and acute lung injury/acute respiratory distress syndrome (ARDS). TRPV4 has been shown to play a role in lung diseases associated with lung parenchymal stretch or stiffness. TRPV4 indirectly mediates hypotonicity-induced smooth muscle contraction and airway remodeling in asthma. Further, the literature suggests that in CF TRPV4 may improve ciliary beat frequency enhancing mucociliary clearance, while at the same time increasing pro-inflammatory cytokine secretion/lung tissue injury. Currently it is understood that the role of TRPV4 in immune cell function and associated lung tissue injury/ARDS may depend on the injury stimulus. Uncovering the downstream mechanisms of TRPV4 action in pulmonary inflammatory diseases is likely important to understanding disease pathogenesis and may lead to novel therapeutics.
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Affiliation(s)
- Rachel G Scheraga
- Cleveland Clinic, Department of Pathobiology, Lerner Research Institute, Cleveland, OH, USA
| | - Brian D Southern
- Cleveland Clinic, Department of Pathobiology, Lerner Research Institute, Cleveland, OH, USA
| | - Lisa M Grove
- Cleveland Clinic, Department of Pathobiology, Lerner Research Institute, Cleveland, OH, USA
| | - Mitchell A Olman
- Cleveland Clinic, Department of Pathobiology, Lerner Research Institute, Cleveland, OH, USA
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252
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Zhang B, Wang B, Cao S, Wang Y, Wu D. Silybin attenuates LPS-induced lung injury in mice by inhibiting NF-κB signaling and NLRP3 activation. Int J Mol Med 2017; 39:1111-1118. [PMID: 28350048 PMCID: PMC5403282 DOI: 10.3892/ijmm.2017.2935] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 03/09/2017] [Indexed: 12/21/2022] Open
Abstract
Silybin is one of the main flavonoids produced by milk thistle, which has been used in the treatment of liver diseases. In this study, we examined the protective effects and possible mechanisms of action of silybin in lipopolysaccharide (LPS)-induced lung injury and inflammation. Pre-treatment of mice with silybin significantly inhibited LPS-induced airway inflammatory cell recruitment, including macrophages, T cells and neutrophils. The production of cytokines, such as interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) in bronchoalveolar fluid and serum was also decreased following treatment with silybin. Elevated cytokine mRNA levels induced by LPS in lung tissue were all suppressed by silybin and lung histological alterations were also improved. In addition, experiments using cells indicated that silybin significantly decreased the mRNA levels and secretion of IL-1β and TNF-α in THP-1 cells. Moreover, the mechanisms responsible for these effects were attributed to the inhibitory effect of silybin on nuclear factor-κB (NF-κB) signaling and NLR family pyrin domain containing 3 (NLRP3) inflammasome activation. The data form our study thus support the utility of silybin as a potential medicine for the treatment of acute lung injury-associated inflammation and pathological changes. Silybin exerts protective effects against lung injury by regulating NF-κB signaling and the NLRP3 inflammasome activation.
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Affiliation(s)
- Bo Zhang
- Intensive Care Unit, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Hexi, Tianjin 300060, P.R. China
| | - Bing Wang
- Intensive Care Unit, Tianjin First Center Hospital, Tianjin Ιnstitute of Εmergency Μedicine, Nankai, Tianjin 300192, P.R. China
| | - Shuhua Cao
- Intensive Care Unit, Tianjin First Center Hospital, Tianjin Ιnstitute of Εmergency Μedicine, Nankai, Tianjin 300192, P.R. China
| | - Yongqiang Wang
- Intensive Care Unit, Tianjin First Center Hospital, Tianjin Ιnstitute of Εmergency Μedicine, Nankai, Tianjin 300192, P.R. China
| | - Di Wu
- Intensive Care Unit, Tianjin Huanhu Hospital, Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Hexi, Tianjin 300060, P.R. China
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253
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Suber T, Wei J, Jacko AM, Nikolli I, Zhao Y, Zhao J, Mallampalli RK. SCF FBXO17 E3 ligase modulates inflammation by regulating proteasomal degradation of glycogen synthase kinase-3β in lung epithelia. J Biol Chem 2017; 292:7452-7461. [PMID: 28298444 DOI: 10.1074/jbc.m116.771667] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/10/2017] [Indexed: 01/25/2023] Open
Abstract
Glycogen synthase kinase-3β (GSK3β) has diverse biological roles including effects on cellular differentiation, migration, and inflammation. GSK3β phosphorylates proteins to generate phosphodegrons necessary for recognition by Skp1/Cullin-1/F-box (SCF) E3 ubiquitin ligases leading to subsequent proteasomal degradation of these substrates. However, little is known regarding how GSK3β protein stability itself is regulated and how its stability may influence inflammation. Here we show that GSK3β is degraded by the ubiquitin-proteasome pathway in murine lung epithelial cells through lysine 183 as an acceptor site for K48 polyubiquitination. We have identified FBXO17 as an F-box protein subunit that recognizes and mediates GSK3β polyubiquitination. Both endogenous and ectopically expressed FBXO17 associate with GSK3β, and its overexpression leads to decreased protein levels of GSK3β. Silencing FBXO17 gene expression increased the half-life of GSK3β in cells. Furthermore, overexpression of FBXO17 inhibits agonist-induced release of keratinocyte-derived cytokine (KC) and interleukin-6 (IL-6) production by cells. Thus, the SCFFBXO17 E3 ubiquitin ligase complex negatively regulates inflammation by targeting GSK3β in lung epithelia.
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Affiliation(s)
- Tomeka Suber
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Jianxin Wei
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Anastasia M Jacko
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Ina Nikolli
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Yutong Zhao
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Jing Zhao
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Rama K Mallampalli
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and .,Cell Biology, Physiology, and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15213 and.,the Medical Specialty Service Line, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania 15240
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254
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Jin M, Yang Y, Pan X, Lu J, Zhang Z, Cheng W. Effects of pulmonary static inflation with 50% xenon on oxygen impairment during cardiopulmonary bypass for stanford type A acute aortic dissection: A pilot study. Medicine (Baltimore) 2017; 96:e6253. [PMID: 28272227 PMCID: PMC5348175 DOI: 10.1097/md.0000000000006253] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The goal of this study was to investigate the effects of pulmonary static inflation with 50% xenon on postoperative oxygen impairment during cardiopulmonary bypass (CPB) for Stanford type A acute aortic dissection (AAD). METHODS This prospective single-center nonrandomized controlled clinical trial included 100 adult patients undergoing surgery for Stanford type A AAD at an academic hospital in China. Fifty subjects underwent pulmonary static inflation with 50% oxygen from January 2013 to January 2014, and 50 underwent inflation with 50% xenon from January 2014 to December 2014. During CPB, the lungs were inflated with either 50% xenon (xenon group) or 50% oxygen (control group) to maintain an airway pressure of 5 cm H2O. The primary outcome was oxygenation index (OI) value after intubation, and 10 minutes and 6 hours after the operation. The second outcome was cytokine and reactive oxygen species levels after intubation and 10 minutes, 6 hours, and 24 hours after the operation. RESULTS Patients treated with xenon had lower OI levels compared to the control group before surgery (P = 0.002); however, there was no difference in postoperative values between the 2 groups. Following surgery, mean maximal OI values decreased by 18.8% and 33.8%, respectively, in the xenon and control groups. After surgery, the levels of interleukin-6 (IL-6), tumor necrosis factor alpha, and thromboxane B2 decreased by 23.5%, 9.1%, and 30.2%, respectively, in the xenon group, but increased by 10.8%, 26.2%, and 26.4%, respectively, in the control group. Moreover, IL-10 levels increased by 28% in the xenon group and decreased by 7.5% in the control group. There were significant time and treatment-time interaction effects on methane dicarboxylic aldehyde (P = 0.000 and P = 0.050, respectively) and myeloperoxidase (P = 0.000 and P = 0.001 in xenon and control groups, respectively). There was no difference in hospital mortality and 1-year survival rate between the 2 groups. CONCLUSION Pulmonary static inflation with 50% xenon during CPB could attenuate OI decreases at the end of surgery for Stanford type A AAD. Thus, xenon may function by triggering anti-inflammatory responses and suppressing pro-inflammatory and oxidative effects.
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Affiliation(s)
- Mu Jin
- Department of Anaesthesiology
| | | | - Xudong Pan
- Department of Cardiology Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, and Beijing Engineering Research Center of Vascular Prostheses, Beijing, China
| | | | - Zhiquan Zhang
- Department of Anesthesiology, Duke University Medical Center, Durham, NC
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255
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Willam A, Aufy M, Tzotzos S, Evanzin H, Chytracek S, Geppert S, Fischer B, Fischer H, Pietschmann H, Czikora I, Lucas R, Lemmens-Gruber R, Shabbir W. Restoration of Epithelial Sodium Channel Function by Synthetic Peptides in Pseudohypoaldosteronism Type 1B Mutants. Front Pharmacol 2017; 8:85. [PMID: 28286482 PMCID: PMC5323398 DOI: 10.3389/fphar.2017.00085] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 02/09/2017] [Indexed: 12/20/2022] Open
Abstract
The synthetically produced cyclic peptides solnatide (a.k.a. TIP or AP301) and its congener AP318, whose molecular structures mimic the lectin-like domain of human tumor necrosis factor (TNF), have been shown to activate the epithelial sodium channel (ENaC) in various cell- and animal-based studies. Loss-of-ENaC-function leads to a rare, life-threatening, salt-wasting syndrome, pseudohypoaldosteronism type 1B (PHA1B), which presents with failure to thrive, dehydration, low blood pressure, anorexia and vomiting; hyperkalemia, hyponatremia and metabolic acidosis suggest hypoaldosteronism, but plasma aldosterone and renin activity are high. The aim of the present study was to investigate whether the ENaC-activating effect of solnatide and AP318 could rescue loss-of-function phenotype of ENaC carrying mutations at conserved amino acid positions observed to cause PHA1B. The macroscopic Na+ current of all investigated mutants was decreased compared to wild type ENaC when measured in whole-cell patch clamp experiments, and a great variation in the membrane abundance of different mutant ENaCs was observed with Western blotting experiments. However, whatever mechanism leads to loss-of-function of the studied ENaC mutations, the synthetic peptides solnatide and AP318 could restore ENaC function up to or even higher than current levels of wild type ENaC. As therapy of PHA1B is only symptomatic so far, the peptides solnatide and AP318, which directly target ENaC, are promising candidates for the treatment of the channelopathy-caused disease PHA1B.
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Affiliation(s)
- Anita Willam
- Department of Pharmacology and Toxicology, University of Vienna Vienna, Austria
| | - Mohammed Aufy
- Department of Pharmacology and Toxicology, University of Vienna Vienna, Austria
| | | | - Heinrich Evanzin
- Department of Pharmacology and Toxicology, University of Vienna Vienna, Austria
| | - Sabine Chytracek
- Department of Pharmacology and Toxicology, University of Vienna Vienna, Austria
| | - Sabrina Geppert
- Department of Pharmacology and Toxicology, University of Vienna Vienna, Austria
| | | | | | | | - Istvan Czikora
- Vascular Biology Center, Medical College of Georgia, Augusta University Augusta, GA, USA
| | - Rudolf Lucas
- Vascular Biology Center, Medical College of Georgia, Augusta University Augusta, GA, USA
| | - Rosa Lemmens-Gruber
- Department of Pharmacology and Toxicology, University of Vienna Vienna, Austria
| | - Waheed Shabbir
- Department of Pharmacology and Toxicology, University of ViennaVienna, Austria; APEPTICO GmbHVienna, Austria
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256
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Wang T, Hou W, Fu Z. Preventative effect of OMZ-SPT on lipopolysaccharide-induced acute lung injury and inflammation via nuclear factor-kappa B signaling in mice. Biochem Biophys Res Commun 2017; 485:284-289. [PMID: 28223218 DOI: 10.1016/j.bbrc.2017.02.090] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 02/18/2017] [Indexed: 11/17/2022]
Abstract
Acute lung injury (ALI) is an early pathophysiologic change in acute respiratory distress syndrome and its management can be challenging. Omalizumab (Xolair™) is a recombinant DNA-derived, humanized antibody. OMZ-SPT is a polypeptide on the heavy chain of omalizumab monoclonal antibody. Here, we found that intramuscular administration of OMZ-SPT significantly improved survival and attenuated lung inflammation in female C57BL/6 mice suffering from lipopolysaccharide (LPS)-induced ALI. We also demonstrated that OMZ-SPT can inhibit expression of the inflammatory cytokines tumor necrosis factor-α, interleukin-1β and interleukin-6 by ELISA in mice suffering from LPS-induced ALI and a mouse macrophage line (RAW264.7 cells). In addition, we showed that OMZ-SPT inhibited LPS-induced activation of nuclear factor-kappa B (NF-κB) signaling and total expression of NF-κB by western blotting. These data suggest that OMZ-SPT could be a novel therapeutic choice for ALI.
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Affiliation(s)
- Ting Wang
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
| | - Wanru Hou
- Secular Peptide Biomedicine, Chengdu, China.
| | - Zhou Fu
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
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257
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Preventive Effects of Carnosine on Lipopolysaccharide-induced Lung Injury. Sci Rep 2017; 7:42813. [PMID: 28205623 PMCID: PMC5311717 DOI: 10.1038/srep42813] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 01/16/2017] [Indexed: 12/16/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a potentially devastating form of acute lung injury, which involves neutrophilic inflammation and pulmonary cell death. Reactive oxygen species (ROS) play important roles in ARDS development. New compounds for inhibiting the onset and progression of ARDS are required. Carnosine (β-alanyl-L-histidine) is a small di-peptide with numerous activities, including antioxidant effects, metal chelation, proton buffering capacity and the inhibition of protein carbonylation and glycoxidation. We have examined the preventive effects of carnosine on tissue injury, oedema and inflammation in a murine model for ARDS. Oral administration of carnosine suppressed lipopolysaccharide (LPS)-induced vascular permeability, tissue injury and inflammation in the lung. In vivo imaging analysis revealed that LPS administration increased the level of ROS and that this increase was inhibited by carnosine administration. Carnosine also suppressed LPS-induced neutrophilic inflammation (evaluated by activation of myeloperoxidase in the lung and increased extracellular DNA in bronchoalveolar lavage fluid). Furthermore, carnosine administration suppressed the LPS-induced endoplasmic reticulum stress response in vivo. These results suggest that the oral administration of carnosine suppresses LPS-induced lung injury via carnosine's ROS-reducing activity. Therefore, carnosine may be beneficial for suppressing the onset and progression of ARDS.
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258
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Zhu H, Xiong Y, Xia Y, Zhang R, Tian D, Wang T, Dai J, Wang L, Yao H, Jiang H, Yang K, Liu E, Shi Y, Fu Z, Gao L, Zou L. Therapeutic Effects of Human Umbilical Cord-Derived Mesenchymal Stem Cells in Acute Lung Injury Mice. Sci Rep 2017; 7:39889. [PMID: 28051154 PMCID: PMC5209685 DOI: 10.1038/srep39889] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 11/29/2016] [Indexed: 02/05/2023] Open
Abstract
The incidence and mortality of acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) are still very high, but stem cells show some promise for its treatment. Here we found that intratracheal administration of human umbilical cord-mesenchymal stem cells (UC-MSCs) significantly improved survival and attenuated the lung inflammation in lipopolysaccharide (LPS)-induced ALI mice. We also used the proteins-chip and bioinformatics to analyze interactions between UC-MSCs treatment and immune-response alternations of ALI mice. Then we demonstrated that UC-MSCs could inhibit the inflammatory response of mouse macrophage in ALI mice, as well as enhance its IL-10 expression. We provide data to support the concept that the therapeutic capacity of UC-MSCs for ALI was primarily through paracrine secretion, particularly of prostaglandin-E2 (PGE2). Furthermore, we showed that UC-MSCs might secrete a panel of factors including GM-CSF, IL-6 and IL-13 to ameliorate ALI. Our study suggested that UC-MSCs could protect LPS-induced ALI model by immune regulation and paracrine factors, indicating that UC-MSCs should be a promising strategy for ALI/ARDS.
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Affiliation(s)
- Hua Zhu
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Department of Pediatrics, First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Yi Xiong
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Yunqiu Xia
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Rong Zhang
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Daiyin Tian
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Ting Wang
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Jihong Dai
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Lijia Wang
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Hongbing Yao
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Department of Otorhinolaryngology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Hong Jiang
- Department of Pediatrics, First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Ke Yang
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing 400014, China
| | - Enmei Liu
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Yujun Shi
- Laboratoryof Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhou Fu
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing 400014, China
| | - Li Gao
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Department of Otorhinolaryngology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing 400014, China
| | - Lin Zou
- Pediatrics Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing 400014, China.,Center for Clinical Molecular Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
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259
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CXCL10/IP-10 Neutralization Can Ameliorate Lipopolysaccharide-Induced Acute Respiratory Distress Syndrome in Rats. PLoS One 2017; 12:e0169100. [PMID: 28046003 PMCID: PMC5207674 DOI: 10.1371/journal.pone.0169100] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 12/12/2016] [Indexed: 12/30/2022] Open
Abstract
The role of C-X-C motif chemokine 10 (CXCL10), a pro-inflammatory factor, in the development of acute respiratory distress syndrome (ARDS) remains unclear. In this study, we explored the role of CXCL10 and the effect of CXCL10 neutralization in lipopolysaccharide (LPS)-induced ARDS in rats. The expression of CXCL10 and its receptor chemokine receptor 3(CXCR3) increased after LPS induction. Moreover, neutralization of CXCL10 ameliorated the severity of ARDS by reducing pulmonary edema, inhibiting the release of inflammatory mediators (IFN-γ, IL-6 and ICAM-1) and limiting inflammatory cells (neutrophils, macrophages, CD8+ T cells) influx into the lung, with a reduction in CXCR3 expression in neutrophils and macrophages. Therefore, CXCL10 could be a potential therapeutic target in LPS-induced ARDS.
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261
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Population Pharmacokinetics and Pharmacodynamics Modelling of Dilmapimod in Severe Trauma Subjects at Risk for Acute Respiratory Distress Syndrome. Drugs R D 2016; 17:145-158. [PMID: 28004376 PMCID: PMC5318329 DOI: 10.1007/s40268-016-0161-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Introduction Dilmapimod is a potent p38 mitogen-activated protein kinase (MAPK) inhibitor and was investigated in a study (NCT00996840) for its anti-inflammatory effect in non-head injury trauma patients at risk for developing acute respiratory distress syndrome (ARDS). The purpose of this paper is to present the details of the development of a population pharmacokinetic (PK) model, an empirical population placebo response model, and the exploration of a PK/pharmacodynamic (PD) model of dilmapimod. Methods A population PK model was developed to characterise the PK profile of dilmapimod in this patient population; the potential effect of available covariates on the PK of dilmapimod was evaluated. An empirical population placebo response model was conducted, and a population PK/PD model was explored to evaluate the relationship between dilmapimod concentration and C-reactive protein (CRP) (a systemic biomarker of p38 inhibition). All analyses were performed using NONMEM software. Results Following intravenous dosing, dilmapimod was quickly distributed to peripheral compartments and then slowly eliminated. The plasma concentration of dilmapimod was adequately described by a three-compartment model. It increased approximately proportionally to the increase in dose. The population clearance (CL) parameter value was 35.87 L/h, and the steady-state volume of distribution (Vss) [sum of the volume of distribution of the central compartment (Vc) and of the peripheral compartments V2 and V3] was 160 L. The effect of body mass index (BMI) on CL and inter-compartment clearance (Q2) was found statistically significant, with an increase in BMI of 1 kg/m2 resulting in a 1.79 L/h and 0.52 L/h increase in CL and Q2, respectively. The CRP profile post injury was adequately described by an indirect response model, with a sharp increase in the CRP levels following injury, followed by them slowly diminishing. Data exploration indicated potential drug effects of dilmapimod on inhibiting the production of CRP levels; however, the current small dataset did not show a statistically significant improvement in the PK/PD modelling. Conclusion The population PK modelling adequately evaluated the dilmapimod plasma concentration–time profiles in severe trauma subjects at risk for ARDS, and BMI was found to be a significant covariate in the PK model. An indirect response model was adequate to describe the production and degradation of CRP levels in these subjects.
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262
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Liu T, Zhou Y, Li P, Duan JX, Liu YP, Sun GY, Wan L, Dong L, Fang X, Jiang JX, Guan CX. Blocking triggering receptor expressed on myeloid cells-1 attenuates lipopolysaccharide-induced acute lung injury via inhibiting NLRP3 inflammasome activation. Sci Rep 2016; 6:39473. [PMID: 28004759 PMCID: PMC5177963 DOI: 10.1038/srep39473] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 11/23/2016] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury (ALI) is associated with high mortality and uncontrolled inflammation plays a critical role in ALI. TREM-1 is an amplifier of inflammatory response, and is involved in the pathogenesis of many infectious diseases. NLRP3 inflammasome is a member of NLRs family that contributes to ALI. However, the effect of TREM-1 on NLRP3 inflammasome and ALI is still unknown. This study aimed to determine the effect of TREM-1 modulation on LPS-induced ALI and activation of the NLRP3 inflammasome. We showed that LR12, a TREM-1 antagonist peptide, significantly improved survival of mice after lethal doses of LPS. LR12 also attenuated inflammation and lung tissue damage by reducing histopathologic changes, infiltration of the macrophage and neutrophil into the lung, and production of the pro-inflammatory cytokine, and oxidative stress. LR12 decreased expression of the NLRP3, pro-caspase-1 and pro-IL-1β, and inhibited priming of the NLRP3 inflammasome by inhibiting NF-κB. LR12 also reduced the expression of NLRP3 and caspase-1 p10 protein, and secretion of the IL-1β, inhibited activation of the NLRP3 inflammasome by decreasing ROS. For the first time, these data show that TREM-1 aggravates inflammation in ALI by activating NLRP3 inflammasome, and blocking TREM-1 may be a potential therapeutic approach for ALI.
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Affiliation(s)
- Tian Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Yong Zhou
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Ping Li
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Jia-Xi Duan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Yong-Ping Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Guo-Ying Sun
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Li Wan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Liang Dong
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China.,Department of Anesthesiology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 56300, China
| | - Xiang Fang
- Department of Neurology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Jian-Xin Jiang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Cha-Xiang Guan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
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263
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Jiang Y, Zeng Y, Huang X, Qin Y, Luo W, Xiang S, Sooranna SR, Pinhu L. Nur77 attenuates endothelin-1 expression via downregulation of NF-κB and p38 MAPK in A549 cells and in an ARDS rat model. Am J Physiol Lung Cell Mol Physiol 2016; 311:L1023-L1035. [PMID: 27765761 PMCID: PMC5206403 DOI: 10.1152/ajplung.00043.2016] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 10/03/2016] [Indexed: 02/07/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) is characterized by inflammatory injury to the alveolar and capillary barriers that results in impaired gas exchange and severe acute respiratory failure. Nuclear orphan receptor Nur77 has emerged as a regulator of gene expression in inflammation, and its role in the pathogenesis of ARDS is not clear. The objective of this study is to investigate the potential role of Nur77 and its underlying mechanism in the regulation of endothelin-1 (ET-1) expression in lipopolysaccharide (LPS)-induced A549 cells and an ARDS rat model. We demonstrate that LPS induced Nur77 expression and nuclear export in A549 cells. Overexpression of Nur77 markedly decreased basal and LPS-induced ET-1 expression in A549 cells, whereas knockdown of Nur77 increased the ET-1 expression. LPS-induced phosphorylation and nuclear translocation of NF-κB and p38 MAPK were blocked by Nur77 overexpression and augmented by Nur77 knockdown in A549 cells. In vivo, LPS induced Nur77 expression in lung in ARDS rats. Pharmacological activation of Nur77 by cytosporone B (CsnB) inhibited ET-1 expression in ARDS rats, decreased LPS-induced phosphorylation of NF-κB and p38 MAPK, and relieved lung, liver, and kidney injury. Pharmacological deactivation of Nur77 by 1,1-bis-(3'-indolyl)-1-(p-hydroxyphenyl)methane (DIM-C-pPhOH, C-DIM8) had no effect on ET-1 expression and lung injury. These results indicated that Nur77 decreases ET-1 expression by suppressing NF-κB and p38 MAPK in LPS-stimulated A549 cells in vitro, and, in an LPS-induced ARDS rat model, CsnB reduced ET-1 expression and lung injury in ARDS rats.
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MESH Headings
- A549 Cells
- Active Transport, Cell Nucleus/drug effects
- Animals
- Cell Nucleus/drug effects
- Cell Nucleus/metabolism
- Disease Models, Animal
- Down-Regulation/drug effects
- Endothelin-1/metabolism
- Kidney/drug effects
- Kidney/pathology
- Lipopolysaccharides/pharmacology
- Liver/drug effects
- Liver/pathology
- Lung/drug effects
- Lung/metabolism
- Male
- NF-kappa B/metabolism
- Nuclear Receptor Subfamily 4, Group A, Member 1/agonists
- Nuclear Receptor Subfamily 4, Group A, Member 1/genetics
- Nuclear Receptor Subfamily 4, Group A, Member 1/metabolism
- Phenylacetates/pharmacology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats, Sprague-Dawley
- Respiratory Distress Syndrome/enzymology
- Respiratory Distress Syndrome/genetics
- Respiratory Distress Syndrome/pathology
- p38 Mitogen-Activated Protein Kinases/metabolism
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Affiliation(s)
- Yujie Jiang
- The First Clinical Medical College of Jinan University, Guangzhou, Guangdong Province, China
- Department of Respiratory Medicine
| | - Yi Zeng
- Department of Central Laboratory, Youjiang Medical University for Nationalities, Baise, Guangxi, China
| | - Xia Huang
- The First Clinical Medical College of Jinan University, Guangzhou, Guangdong Province, China
- Department of Respiratory Medicine
| | - Yueqiu Qin
- Department of Digestive, Youjiang Medical University for Nationalities, Baise, Guangxi, China; Youjiang Medical University for Nationalities, Baise, Guangxi, China
| | | | - Shulin Xiang
- Department of Intensive Care Unit, the People's Hospital of Guangxi, Nanning, Guangxi, China
| | - Suren R Sooranna
- Department of Surgery and Cancer, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdon; and
| | - Liao Pinhu
- Department of Intensive Care Medicine, Youjiang Medical University for Nationalities, Baise, Guangxi, China
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264
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Zhao Z, Xu D, Li S, He B, Huang Y, Xu M, Ren S, Li S, Wang H, Xie W. Activation of Liver X Receptor Attenuates Oleic Acid-Induced Acute Respiratory Distress Syndrome. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 186:2614-22. [PMID: 27520356 PMCID: PMC5222979 DOI: 10.1016/j.ajpath.2016.06.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 05/19/2016] [Accepted: 06/23/2016] [Indexed: 01/11/2023]
Abstract
Liver X receptors (LXRs) were identified as receptors that sense oxidized cholesterol derivatives. LXRs are best known for their hepatic functions in regulating cholesterol metabolism and triglyceride synthesis, but whether and how LXRs play a role in the lung diseases is less understood. To study the function of LXRs in acute respiratory distress syndrome (ARDS), we applied the oleic acid (OA) model of ARDS to mice whose LXR was genetically or pharmacologically activated. The VP-LXRα knock-in (LXR-KI) mice, in which a constitutively activated LXRα (VP-LXRα) was inserted into the mouse LXRα locus, were used as the genetic gain-of-function model. We showed that the OA-induced lung damages, including the cytokine levels and total cell numbers and neutrophil numbers in the bronchoalveolar lavage fluid, the wet/dry weight ratio, and morphological abnormalities were reduced in the LXR-KI mice and wild-type mice treated with the LXR agonist GW3965. The pulmonoprotective effect of GW3965 was abolished in the LXR-null mice. Consistent with the pulmonoprotective effect of LXR and the induction of antioxidant enzymes by LXR, the OA-induced suppression of superoxide dismutase and catalase was attenuated in LXR-KI mice and GW3965-treated wild-type mice. Taken together, our results demonstrate that activation of LXRs can alleviate OA-induced ARDS by attenuating the inflammatory response and enhancing antioxidant capacity.
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Affiliation(s)
- Zanmei Zhao
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Occupational Disease, Peking University Third Hospital, Beijing, China
| | - Dan Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Shuqiang Li
- Department of Occupational Disease, Peking University Third Hospital, Beijing, China
| | - Bei He
- Department of Respiratory Medicine, Peking University Third Hospital, Beijing, China
| | - Yixian Huang
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Meishu Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Songrong Ren
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Song Li
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Hui Wang
- Department of Pharmacology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Wen Xie
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania.
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265
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Williams AE, Chambers RC. Neutrophils and tissue damage: is hypoxia the key to excessive degranulation? Thorax 2016; 71:977-978. [DOI: 10.1136/thoraxjnl-2016-208879] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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266
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Sun K, Yajjala VK, Bauer C, Talmon GA, Fischer KJ, Kielian T, Metzger DW. Nox2-derived oxidative stress results in inefficacy of antibiotics against post-influenza S. aureus pneumonia. J Exp Med 2016; 213:1851-64. [PMID: 27526712 PMCID: PMC4995072 DOI: 10.1084/jem.20150514] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 06/30/2016] [Indexed: 01/21/2023] Open
Abstract
Phagocyte oxidative burst is the primary source of lethal lung injury during influenza and MRSA coinfection. Clinical post-influenza Staphylococcus aureus pneumonia is characterized by extensive lung inflammation associated with severe morbidity and mortality even after appropriate antibiotic treatment. In this study, we show that antibiotics rescue nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 2 (Nox2)–deficient mice but fail to fully protect WT animals from influenza and S. aureus coinfection. Further experiments indicate that the inefficacy of antibiotics against coinfection is attributable to oxidative stress–associated inflammatory lung injury. However, Nox2-induced lung damage during coinfection was not associated with aggravated inflammatory cytokine response or cell infiltration but rather caused by reduced survival of myeloid cells. Specifically, oxidative stress increased necrotic death of inflammatory cells, thereby resulting in lethal damage to surrounding tissue. Collectively, our results demonstrate that influenza infection disrupts the delicate balance between Nox2-dependent antibacterial immunity and inflammation. This disruption leads to not only increased susceptibility to S. aureus infection, but also extensive lung damage. Importantly, we show that combination treatment of antibiotic and NADPH oxidase inhibitor significantly improved animal survival from coinfection. These findings suggest that treatment strategies that target both bacteria and oxidative stress will significantly benefit patients with influenza-complicated S. aureus pneumonia.
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Affiliation(s)
- Keer Sun
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198 Center for Immunology and Microbial Disease, Albany Medical College, Albany, NY 12208
| | - Vijaya Kumar Yajjala
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198
| | - Christopher Bauer
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198
| | - Geoffrey A Talmon
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198
| | - Karl J Fischer
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198
| | - Tammy Kielian
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198
| | - Dennis W Metzger
- Center for Immunology and Microbial Disease, Albany Medical College, Albany, NY 12208
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267
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Chen K, Kolls JK. Innate Lymphoid Cells and Acute Respiratory Distress Syndrome. Am J Respir Crit Care Med 2016; 193:350-2. [PMID: 26871668 DOI: 10.1164/rccm.201510-2101ed] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Kong Chen
- 1 Richard King Mellon Foundation Institute for Pediatric Research Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center Pittsburgh, Pennsylvania
| | - Jay K Kolls
- 1 Richard King Mellon Foundation Institute for Pediatric Research Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center Pittsburgh, Pennsylvania
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268
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Peng S, Hang N, Liu W, Guo W, Jiang C, Yang X, Xu Q, Sun Y. Andrographolide sulfonate ameliorates lipopolysaccharide-induced acute lung injury in mice by down-regulating MAPK and NF-κB pathways. Acta Pharm Sin B 2016; 6:205-11. [PMID: 27175331 PMCID: PMC4856950 DOI: 10.1016/j.apsb.2016.02.002] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 01/06/2016] [Accepted: 01/26/2016] [Indexed: 01/24/2023] Open
Abstract
Acute lung injury (ALI) or acute respiratory distress syndrome (ARDS) is a severe, life-threatening medical condition characterized by widespread inflammation in the lungs, and is a significant source of morbidity and mortality in the patient population. New therapies for the treatment of ALI are desperately needed. In the present study, we examined the effect of andrographolide sulfonate, a water-soluble form of andrographolide (trade name: Xi-Yan-Ping Injection), on lipopolysaccharide (LPS)-induced ALI and inflammation. Andrographolide sulfonate was administered by intraperitoneal injection to mice with LPS-induced ALI. LPS-induced airway inflammatory cell recruitment and lung histological alterations were significantly ameliorated by andrographolide sulfonate. Protein levels of pro-inflammatory cytokines in bronchoalveolar lavage fluid (BALF) and serum were reduced by andrographolide sulfonate administration. mRNA levels of pro-inflammatory cytokines in lung tissue were also suppressed. Moreover, andrographolide sulfonate markedly suppressed the activation of mitogen-activated protein kinase (MAPK) as well as p65 subunit of nuclear factor-κB (NF-κB). In summary, these results suggest that andrographolide sulfonate ameliorated LPS-induced ALI in mice by inhibiting NF-κB and MAPK-mediated inflammatory responses. Our study shows that water-soluble andrographolide sulfonate may represent a new therapeutic approach for treating inflammatory lung disorders.
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Key Words
- ALI, acute lung injury
- ARDS, acute respiratory distress syndrome
- Andrographolide sulfonate
- BALF, bronchoalveolar lavage fluid
- DSS, dextran sulfate sodium
- H&E, hematoxylin & eosin
- HRP, horseradish peroxidase
- IL-6, interleukin-6
- JNK, c-Jun N-terminal kinase
- LPS, lipopolysaccharide
- Lipopolysaccharide
- Lung injury
- MAPK
- MAPK, mitogen-activated protein kinase
- Mouse
- NF-κB
- NF-κB, nuclear factor-κB
- TNBS, trinitrobenzenesulfonic acid
- TNF, tumor necrosis factor
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269
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Abstract
Acute respiratory distress syndrome represents a complex syndrome with considerable morbidity and mortality, for which there exist no targeted treatment strategies. However, recent advances in clinical care have improved outcomes, and we will review a number of these approaches here, as well as explore the mechanisms underlying the benefit of intervention that might point us in the direction toward future treatment and preventive strategies for this devastating syndrome.
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Affiliation(s)
- Rebecca M Baron
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Bruce D Levy
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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270
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ARDS: what experimental models have taught us. Intensive Care Med 2016; 42:806-810. [PMID: 26928038 DOI: 10.1007/s00134-016-4268-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 02/09/2016] [Indexed: 10/22/2022]
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271
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Izushi Y, Teshigawara K, Liu K, Wang D, Wake H, Takata K, Yoshino T, Takahashi HK, Mori S, Nishibori M. Soluble form of the receptor for advanced glycation end-products attenuates inflammatory pathogenesis in a rat model of lipopolysaccharide-induced lung injury. J Pharmacol Sci 2016; 130:226-34. [PMID: 27038888 DOI: 10.1016/j.jphs.2016.02.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 02/16/2016] [Accepted: 02/18/2016] [Indexed: 01/06/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a severe respiratory failure caused by acute lung inflammation. Recently, the receptor for advanced glycation end-products (RAGE) has attracted attention in the lung inflammatory response. However, the function of soluble form of RAGE (sRAGE), which is composed of an extracellular domain of RAGE, in ARDS remains elusive. Therefore, we investigated the dynamics of pulmonary sRAGE and the effects of exogenous recombinant human sRAGE (rsRAGE) under intratracheal lipopolysaccharide (LPS)-induced lung inflammation. Our result revealed that RAGE was highly expressed on the alveolar type I epithelial cells in the healthy rat lung including sRAGE isoform sized 45 kDa. Under LPS-induced injured lung, the release of sRAGE into the alveolar space was increased, whereas the expression of RAGE was decreased with alveolar disruption. Treatment of the injured lung with rsRAGE significantly suppressed the lung edema, the neutrophils infiltration, the release of high mobility group box-1 (HMGB1), and the expressions of TNF-α, IL-1β and iNOS. These results suggest that the alveolar release of sRAGE may play a protective role against HMGB1 as well as exogenous pathogen-associated molecular patterns. Supplementary therapy with sRAGE may be an effective therapeutic strategy for ARDS.
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Affiliation(s)
- Yasuhisa Izushi
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Kiyoshi Teshigawara
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Keyue Liu
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Dengli Wang
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Hidenori Wake
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Katsuyoshi Takata
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Tadashi Yoshino
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Hideo Kohka Takahashi
- Department of Pharmacology, Kinki University, Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan
| | - Shuji Mori
- School of Pharmacy, Shujitsu University, 1-6-1 Nishigawara, Naka-ku, Okayama 703-8516, Japan
| | - Masahiro Nishibori
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
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272
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Zhang D, Lee H, Cao Y, Dela Cruz CS, Jin Y. miR-185 mediates lung epithelial cell death after oxidative stress. Am J Physiol Lung Cell Mol Physiol 2016; 310:L700-10. [PMID: 26747785 DOI: 10.1152/ajplung.00392.2015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 12/30/2015] [Indexed: 12/14/2022] Open
Abstract
Lung epithelial cell death is a prominent feature involved in the development of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). Hyperoxia-induced ALI is an established animal model mimicking human ARDS. Small noncoding RNAs such as microRNAs (miRNAs) have potent physiological and pathological functions involving multiple disease processes. Emerging interests focus on the potential of miRNAs to serve as novel therapeutic targets and diagnostic biomarkers. We found that hyperoxia highly induces miR-185 and its precursor in human lung epithelial cells in a time-dependent manner, and this observation is confirmed using mouse primary lung epithelial cells. The hyperoxia-induced miR-185 is mediated by reactive oxygen species. Furthermore, histone deacetylase 4 (HDAC4) locates in the promoter region of miR-185. We found that hyperoxia suppresses HDAC4 specifically in a time-dependent manner and subsequently affects histone deacetylation, resulting in an elevated miR-185 transcription. Using MC1586, an inhibitor of class IIa HDACs, we showed that inhibition of class IIa HDACs upregulates the expression of miR-185, mimicking the effects of hyperoxia. Functionally, miR-185 promotes hyperoxia-induced lung epithelial cell death through inducing DNA damage. We confirmed functional roles of miR-185 using both the loss- and gain-of-function approaches. Moreover, multiple 14-3-3δ pathway proteins are highly attenuated by miR-185 in the presence of hyperoxia. Taken together, hyperoxia-induced miR-185 in lung epithelial cells contributes to oxidative stress-associated epithelial cell death through enhanced DNA damage and modulation of 14-3-3δ pathways.
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Affiliation(s)
- Duo Zhang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Boston University, Boston, Massachusetts
| | - Heedoo Lee
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Boston University, Boston, Massachusetts
| | - Yong Cao
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Boston University, Boston, Massachusetts; Department of Respiratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Charles S Dela Cruz
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Yang Jin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Boston University, Boston, Massachusetts;
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273
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Haemodynamic Effects of Lung Recruitment Manoeuvres. BIOMED RESEARCH INTERNATIONAL 2015; 2015:478970. [PMID: 26682219 PMCID: PMC4670625 DOI: 10.1155/2015/478970] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/29/2015] [Accepted: 10/12/2015] [Indexed: 01/11/2023]
Abstract
Atelectasis caused by lung injury leads to increased intrapulmonary shunt, venous admixture, and hypoxaemia. Lung recruitment manoeuvres aim to quickly reverse this scenario by applying increased airway pressures for a short period of time which meant to open the collapsed alveoli. Although the procedure can improve oxygenation, but due to the heart-lung and right and left ventricle interactions elevated intrathoracic pressures can inflict serious effects on the cardiovascular system. The purpose of this paper is to give an overview on the pathophysiological background of the heart-lung interactions and the best way to monitor these changes during lung recruitment.
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274
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Vohwinkel CU, Hoegl S, Eltzschig HK. Hypoxia signaling during acute lung injury. J Appl Physiol (1985) 2015; 119:1157-63. [PMID: 25977449 PMCID: PMC4816417 DOI: 10.1152/japplphysiol.00226.2015] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/07/2015] [Indexed: 12/29/2022] Open
Abstract
Acute lung injury (ALI) is an inflammatory lung disease that manifests itself in patients as acute respiratory distress syndrome and thereby contributes significantly to the morbidity and mortality of patients experiencing critical illness. Even though it may seem counterintuitive, as the lungs are typically well-oxygenated organs, hypoxia signaling pathways have recently been implicated in the resolution of ALI. For example, functional studies suggest that transcriptional responses under the control of the hypoxia-inducible factor (HIF) are critical in optimizing alveolar epithelial carbohydrate metabolism, and thereby dampen lung inflammation during ALI. In the present review we discuss functional roles of oxygenation, hypoxia and HIFs during ALI, mechanisms of how HIFs are stabilized during lung inflammation, and how HIFs can mediate lung protection during ALI.
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Affiliation(s)
- Christine U Vohwinkel
- Organ Protection Program, Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado; Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado; and
| | - Sandra Hoegl
- Organ Protection Program, Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado; Department of Anesthesiology, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Holger K Eltzschig
- Organ Protection Program, Department of Anesthesiology, University of Colorado School of Medicine, Aurora, Colorado
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275
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Ménoret A, Crocker SJ, Rodriguez A, Rathinam VA, Clark RB, Vella AT. Transition from identity to bioactivity-guided proteomics for biomarker discovery with focus on the PF2D platform. Proteomics Clin Appl 2015. [PMID: 26201056 DOI: 10.1002/prca.201500029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Proteomic strategies provide a valuable tool kit to identify proteins involved in diseases. With recent progress in MS technology, high throughput proteomics has accelerated protein identification for potential biomarkers. Numerous biomarker candidates have been identified in several diseases, and many are common among pathologies. An overall strategy that could complement and strengthen the search for biomarkers is combining protein identity with biological outcomes. This review describes an emerging framework of bridging bioactivity to protein identity, exploring the possibility that some biomarkers will have a mechanistic role in the disease process. A review of pulmonary, cardiovascular, and CNS biomarkers will be discussed to demonstrate the utility of combining bioactivity with identification as a means to not only find meaningful biomarkers, but also to uncover functional mediators of disease.
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Affiliation(s)
- Antoine Ménoret
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| | - Stephen J Crocker
- Department of Neuroscience, University of Connecticut Health Center, Farmington, CT, USA
| | - Annabelle Rodriguez
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT, USA
| | - Vijay A Rathinam
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| | - Robert B Clark
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
| | - Anthony T Vella
- Department of Immunology, University of Connecticut Health Center, Farmington, CT, USA
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276
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Benetis R, Nadisauskiene R, Sirvinskas E, Lenkutis T, Siudikas A, Kadusauskaitė V, Railaitė D, Sukovas A, Abraitis V. Successfully treated severe obstetric sepsis and acute respiratory distress syndrome with extracorporeal membrane oxygenation. Perfusion 2015; 31:343-6. [PMID: 26373682 DOI: 10.1177/0267659115605885] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We report a unique clinical case about an 18-year-old woman, immediately post-partum after an urgent C-section, who survived severe sepsis, acute respiratory distress syndrome (ARDS) and disseminated intravascular coagulation (DIC) and was successfully treated with 11 different antibiotics, massive blood transfusions and repetitive surgeries and was on extracorporeal membrane oxygenation (ECMO) support for 22 days. Although, ECMO is a time-limited procedure and most manufacturers do not advise more than 14 days of use, the situation for this patient was life-threatening and ECMO, despite the dangerous risks listed above, was the only way to win time for the lungs to recover and for treatment of the underlying disease, while maintaining adequate oxygenation and circulation. Fortunately, the condition of this woman was stabilized and she achieved complete physical recovery, despite minor neurological deficit in the fingers of her right hand.
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Affiliation(s)
- Rimantas Benetis
- Department of Cardiac, Thoracic and Vascular Surgery, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Ruta Nadisauskiene
- Department of Obstetrics and Gynaecology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania
| | - Edmundas Sirvinskas
- Department of Cardiac, Thoracic and Vascular Surgery, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Tadas Lenkutis
- Department of Cardiac, Thoracic and Vascular Surgery, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania Department of Anaesthesiology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania
| | - Adakrius Siudikas
- Department of Cardiac, Thoracic and Vascular Surgery, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania
| | - Vytaute Kadusauskaitė
- Department of Anaesthesiology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania
| | - Dalia Railaitė
- Department of Obstetrics and Gynaecology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania
| | - Arturas Sukovas
- Department of Obstetrics and Gynaecology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania
| | - Vytautas Abraitis
- Department of Obstetrics and Gynaecology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos, Kaunas, Lithuania
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277
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Ahn JJ, Jung JP, Park SE, Lee M, Kwon B, Cho HR. Involvement of Protein Kinase C-δ in Vascular Permeability in Acute Lung Injury. Immune Netw 2015; 15:206-11. [PMID: 26330807 PMCID: PMC4553259 DOI: 10.4110/in.2015.15.4.206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 07/27/2015] [Accepted: 07/30/2015] [Indexed: 12/01/2022] Open
Abstract
Pulmonary edema is a major cause of mortality due to acute lung injury (ALI). The involvement of protein kinase C-δ (PKC-δ) in ALI has been a controversial topic. Here we investigated PKC-δ function in ALI using PKC-δ knockout (KO) mice and PKC inhibitors. Our results indicated that although the ability to produce proinflammatory mediators in response to LPS injury in PKC-δ KO mice was similar to that of control mice, they showed enhanced recruitment of neutrophils to the lung and more severe pulmonary edema. PKC-δ inhibition promoted barrier dysfunction in an endothelial cell layer in vitro, and administration of a PKC-δ-specific inhibitor significantly increased steady state vascular permeability. A neutrophil transmigration assay indicated that the PKC-δ inhibition increased neutrophil transmigration through an endothelial monolayer. This suggests that PKC-δ inhibition induces structural changes in endothelial cells, allowing extravasation of proteins and neutrophils.
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Affiliation(s)
- Jong J Ahn
- Department of Internal Medicine, Ulsan University Hospital, School of Medicine, University of Ulsan, Ulsan 44033, Korea
| | - Jong P Jung
- Department of Thoracic Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea
| | - Soon E Park
- Department of Anesthesiology and Pain Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea
| | - Minhyun Lee
- Department of Anesthesiology and Pain Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea
| | - Byungsuk Kwon
- School of Biological Sciences, University of Ulsan, Ulsan 44610, Korea. ; Biomedical Research Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea
| | - Hong R Cho
- Biomedical Research Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea. ; Department of Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea
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278
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Feng G, Sun B, Li TZ. Daidzein attenuates lipopolysaccharide-induced acute lung injury via toll-like receptor 4/NF-kappaB pathway. Int Immunopharmacol 2015; 26:392-400. [DOI: 10.1016/j.intimp.2015.04.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 04/01/2015] [Accepted: 04/02/2015] [Indexed: 12/19/2022]
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