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Du N, Lin H, Zhang A, Cao C, Hu X, Zhang J, Wang L, Pan X, Zhu Y, Qian F, Wang Y, Zhao D, Liu M, Huang Y. N-phenethyl-5-phenylpicolinamide alleviates inflammation in acute lung injury by inhibiting HIF-1α/glycolysis/ASIC1a pathway. Life Sci 2022; 309:120987. [PMID: 36155179 DOI: 10.1016/j.lfs.2022.120987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/13/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022]
Abstract
AIMS Acute lung injury (ALI) is triggered by an acute inflammatory response. Lipopolysaccharide (LPS) is recognized as an important participant in the pathogenesis of sepsis, which may induce ALI. N-phenethyl-5-phenylpicolinamide (N5P) is a newly synthesized HIF-1α inhibitor. The purpose of the present study was to investigate the potential protective effects of N5P on LPS-induced ALI and the underlying mechanisms. MAIN METHODS In vivo experiment, the ALI rat model was induced by intratracheal injection of LPS, and various concentrations of N5P were injected intraperitoneally before LPS administration. In vitro experiment, RAW264.7 macrophages were administrated LPS and N5P to detect inflammatory cytokine changes. HIF-1α overexpression plasmid (HIF1α-OE) and granulocyte-macrophage colony-stimulating factor (GM-CSF), a glycolysis agonist, were used to examine the relationship between the HIF-1α/glycolysis/ASIC1a pathway. KEY FINDINGS Pretreatment with N5P inhibited not only the histopathological changes that occurred in the lungs but also lung dysfunction in LPS-induced ALI. N5P also decreased the levels of lactic acid in lung tissue and arterial blood, and inflammatory factors IL-1β and IL-6 levels in serum. LPS increased HIF-1α, glycolysis proteins GLUT1, HK2, ASIC1a, IL-1β, IL-6, and these changes were reversed by N5P in primary alveolar macrophages and RAW264.7 macrophages. Overexpression of HIF-1α significantly increased glycolysis genes and ASIC1a as well as inflammatory cytokines. Excessive glycolysis levels weaken the ability of N5P to inhibit inflammation. SIGNIFICANCE N5P may alleviate inflammation in ALI through the HIF-1α/glycolysis/ASIC1a signaling pathway. The present findings have provided pertinent information in the assessment of N5P as a potential, future therapeutic drug for ALI.
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Affiliation(s)
- Na Du
- Shanghai Songjiang District Central Hospital, Shanghai 201600, China; Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Huimin Lin
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Anqi Zhang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Chun Cao
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Xiaojie Hu
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jin Zhang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Lili Wang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Xuesheng Pan
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Yueqin Zhu
- Department of Pharmacy, West Branch of The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Cancer Hospital), Hefei 230031, China
| | - Fangyi Qian
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Yuanyuan Wang
- Department of Pharmacology, The Second Hospital of Anhui Medical University, 678 Furong Road, Hefei 230601, Anhui, China
| | - Dahai Zhao
- Respiratory Department of the Second Affiliated Hospital of Anhui Medical University, No. 678 Furong Road, Hefei 230601, China
| | - Mingming Liu
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
| | - Yan Huang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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Chen M, Lin H, Gao Y, Wang Z, Li Y, Jin F. Ghrelin attenuates drowning injury via dual effects on damage protection and immune repression. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:920. [PMID: 34350235 PMCID: PMC8263863 DOI: 10.21037/atm-21-795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/13/2021] [Indexed: 11/13/2022]
Abstract
Background Seawater drowning is the major cause of accidental injury and death. The current treatment could not essentially block the source of the damage due to the complex etiology. Therefore, it is urgent to clarify the detailed mechanisms and find effective therapeutic approaches. Methods We performed in vitro experiments to evaluate the damage of seawater drowning to lung epithelial cells. FACS, immunofluorescent staining, and western blot were used to detect the apoptosis. CCK-8 assay, Ki67 staining, and cell cycle analysis were used to assess the proliferation. The cytokine expression was determined by qRT-PCR and ELISA. Western blot and reporter assay were used for regulation mechanism study. For neutrophils development, Transwell assay and FACS were used for further investigation. Besides, in vivo study was performed with the seawater drowning model in rats. Results In this study, we found that seawater drowning induced mitochondria damage, which further accelerated epithelial cell apoptosis and repressed cell proliferation. Administration of ghrelin attenuated the mitochondria damage via reducing ROS generation, decreasing the concentration of calcium ion and ceremide, and promoting ATP production. Besides, exogenous ghrelin also rescued the cell survival inhibited by seawater simulants. Mechanically, ghrelin retrieved the influence of seawater via inhibiting NF-κB signaling activation, and agonist of NF-κB could offset the function of ghrelin. Besides, ghrelin reduced the expression of inflammatory factors and chemokines responsible for neutrophils activation and recruitment, by which ghrelin suppressed the immune response. The further in vivo experiments also indicated that ghrelin treatment restored the apoptosis promotion and inflammation activation function of seawater simulants, and further alleviated the lung tissue injury. Conclusions Our study revealed the dual effect of ghrelin on seawater drowning induced lung injury via damage protection and immune repression, providing new insights into drowning injury pathogenesis and therapeutic strategies.
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Affiliation(s)
- Min Chen
- Respiration Department of Tangdu hospital, Air Force Military Medical University, Xi'an, China
| | - Hongwei Lin
- Respiration Department of Tangdu hospital, Air Force Military Medical University, Xi'an, China
| | - Yanjun Gao
- Respiration Department of Tangdu hospital, Air Force Military Medical University, Xi'an, China
| | - Zaiqiang Wang
- Respiration Department of Tangdu hospital, Air Force Military Medical University, Xi'an, China
| | - Yujuan Li
- Respiration Department of Tangdu hospital, Air Force Military Medical University, Xi'an, China
| | - Faguang Jin
- Respiration Department of Tangdu hospital, Air Force Military Medical University, Xi'an, China
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Fajardo‐Fregoso BF, Castañeda‐Cabral JL, Beas‐Zárate C, Ureña‐Guerrero ME. Neonatal excitotoxicity modifies blood‐brain barrier properties increasing its susceptibility to hypertonic shock in adulthood. Int J Dev Neurosci 2020; 80:335-346. [DOI: 10.1002/jdn.10027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/29/2020] [Accepted: 03/16/2020] [Indexed: 12/16/2022] Open
Affiliation(s)
- Blanca Fabiola Fajardo‐Fregoso
- Departamento de Biología Celular y Molecular Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA) Universidad de Guadalajara Zapopan Jalisco México
| | - Jose Luis Castañeda‐Cabral
- Departamento de Biología Celular y Molecular Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA) Universidad de Guadalajara Zapopan Jalisco México
| | - Carlos Beas‐Zárate
- Departamento de Biología Celular y Molecular Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA) Universidad de Guadalajara Zapopan Jalisco México
| | - Mónica E. Ureña‐Guerrero
- Departamento de Biología Celular y Molecular Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA) Universidad de Guadalajara Zapopan Jalisco México
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Sun XQ, Wu C, Qiu YB, Wu YX, Chen JL, Huang JF, Chen D, Pang QF. Heme oxygenase-1 attenuates seawater drowning-induced acute lung injury through a reduction in inflammation and oxidative stress. Int Immunopharmacol 2019; 74:105634. [PMID: 31254959 DOI: 10.1016/j.intimp.2019.05.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/20/2019] [Accepted: 05/10/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Heme oxygenase-1 (HO-1) plays a critical protective role in various insults-induced acute lung injury (ALI) through its strong anti-inflammatory, anti-oxidant, and anti-apoptotic properties, but its protective role and mechanism on seawater aspiration-induced acute lung injury remains unclear. This study aimed to explore the therapeutic potential and mechanism of HO-1 to attenuate seawater aspiration-induced ALI in vivo and in vitro. METHODS The viability and invasion of A549 cell were analyzed through cell counting kit-8 and lactate dehydrogenase release assay; the transcriptional level of inflammatory cytokines (TNF-α, IL-6, IL-8 and MCP-1) and cell proliferation-related cytokines (FoxM1, Ccnb1 and Cdc25C) in seawater-treated A549 cell were tested by qPCR; apoptotic cells were analyzed by flow cytometryd; HO-1mRNA and protein were determined by qPCR and western blotting; the fluorescent indicators (DCFH-DA, dihydroethidium, MitoSox Red and Fluo-4) were used to monitor generation of ROS and mitochondrial function. The lung wet/dry weight radio and lactate dehydrogenase activity, Sirius red staining, TUNEL assay and immunohistochemical staining with anti-pan Cytokeratin antibody were analyzed in seawater-drowning mice. The role of HO-1 on seawater-drowning pulmonary injury was explored via HO-1 activity inhibitors (Zinc protoporphyrin) in vitro and in vivo. RESULTS Seawater exposure decreased the cellular viability, increased the production of pro-inflammatory cytokines (IL-6, IL-8 and TNF-α), induced cellular apoptosis and inhibited the expression of cell proliferation-related cytokines (FoxM1, Ccnb1 and Cdc25C). Moreover, seawater exposure led to mitochondrial dysfunction in A549 cells. Supplement of HO-1 sepcific inducer (heme) or its catalytic product (biliverdin) significantly attenuated seawater-induced A549 damage and promoted cell proliferation. However, Zinc protoporphyrin abolished the beneficial effects of HO-1 on seawater drowning-induced pulmonary tissue injury. CONCLUSION HO-1 attenuates seawater drowning-induced lung injury by its anti-inflammatory, anti-oxidative, and anti-apoptosis function.
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Affiliation(s)
- Xue-Qian Sun
- Department of physiopathology, Wuxi School of Medicine, Jiangnan University, 214122 Wuxi, Jiangsu province, China; Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, 214062 Wuxi, Jiangsu province, China
| | - Chen Wu
- Department of physiopathology, Wuxi School of Medicine, Jiangnan University, 214122 Wuxi, Jiangsu province, China
| | - Yu-Bao Qiu
- Department of physiopathology, Wuxi School of Medicine, Jiangnan University, 214122 Wuxi, Jiangsu province, China
| | - Ya-Xian Wu
- Department of physiopathology, Wuxi School of Medicine, Jiangnan University, 214122 Wuxi, Jiangsu province, China
| | - Jun-Liang Chen
- Department of physiopathology, Wuxi School of Medicine, Jiangnan University, 214122 Wuxi, Jiangsu province, China
| | - Jian-Feng Huang
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, 214062 Wuxi, Jiangsu province, China
| | - Dan Chen
- Department of physiopathology, Wuxi School of Medicine, Jiangnan University, 214122 Wuxi, Jiangsu province, China.
| | - Qing-Feng Pang
- Department of physiopathology, Wuxi School of Medicine, Jiangnan University, 214122 Wuxi, Jiangsu province, China.
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Barranco R, Castiglioni C, Ventura F, Fracasso T. A comparative digital morphometric study of lung tissue in saltwater and freshwater drowning. Forensic Sci Int 2019; 298:157-160. [PMID: 30904787 DOI: 10.1016/j.forsciint.2019.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/01/2019] [Accepted: 03/04/2019] [Indexed: 10/27/2022]
Abstract
Acute pulmonary emphysema (APE) is describedin cases of drowning and can be considered as a sign of vitality. In our experience, however, APE is not very evident in cases of saltwater drowning. The present study aims at investigating whether APE is present in both fresh and saltwater drowning by means of digital morphometric analysis of lung tissue. We investigated and compared a group of saltwater drowning and a group of freshwater drowning, while cases of acute external bleeding were investigated as negative control group. Tissue samples from each pulmonary lobe were collected during autopsy and examined by optical microscope. The area of alveolar spaces was calculated by means of image analysis software, recording the mean alveolar area (MAA) for each group. MAA was 24,852 μm2 in the saltwater drowning group, 34,133 μm2 in the freshwater drowning group and 21,871 μm2 in the negative control group. The MAA in freshwater drowning was significantly higher than in saltwater drowning and controls. No statistical differences were observed between saltwater drowning and controls. The results of this study suggest that APE is not a typical sign of death by saltwater drowning.
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Affiliation(s)
- Rosario Barranco
- Department of Legal and Forensic Medicine, University of Genova, Via De' Toni 12, 16132 Genova, Italy
| | - Claudia Castiglioni
- University Center of Legal Medicine Lausanne-Geneva, Rue Michel-Servet, 1211 Geneva, Switzerland
| | - Francesco Ventura
- Department of Legal and Forensic Medicine, University of Genova, Via De' Toni 12, 16132 Genova, Italy.
| | - Tony Fracasso
- University Center of Legal Medicine Lausanne-Geneva, Rue Michel-Servet, 1211 Geneva, Switzerland
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Zhang M, Gao Y, Zhao W, Yu G, Jin F. ACE-2/ANG1-7 ameliorates ER stress-induced apoptosis in seawater aspiration-induced acute lung injury. Am J Physiol Lung Cell Mol Physiol 2018; 315:L1015-L1027. [PMID: 30335496 DOI: 10.1152/ajplung.00163.2018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Previous studies have shown that apoptosis of alveolar cells can be regulated by autocrine of angiotensin (ANG)II and its counter regulatory ACE-2/ANG1-7 axis. Our earlier study has shown that endoplasmic reticulum (ER) stress in response to seawater aspiration eventually led to apoptosis in lung tissue. In this study, we examined the hypothesis that ER stress-induced apoptosis in seawater aspiration-induced acute lung injury (ALI) might also be regulated by the ANGII/ANG1-7 system. ER stress was induced by seawater stimulation and proteasome inhibitor MG132 (an ER stress inductor). Moreover, ER stress in seawater-stimulated lung tissues and rat pulmonary microvascular endothelial cells (RPMVECs) promoted ANGII expression and decreased ACE-2/ANG1-7 expression. ER stress induced by seawater stimulation also led to apoptosis. Apoptosis induced by seawater stimulation and MG132 were inhibited by ANGII receptor blocker and abrogated by the addition of ANG1-7. These results suggest that apoptosis induced by ER stress in seawater aspiration-induced ALI is regulated by ANG II/ANG1-7 in lung tissues and RPMVECs. In addition, the active form of X-box binding protein 1 (XBP1), spliced XBP1 (XBP1s), a transcription factor that regulates ER-associated degradation genes during ER stress was significantly activated in seawater stimulated cells. Based on this phenomenon we designed a tandem gene, Wfs1 promoter (a target gene promoter of XBP1s)- ACE2 and ANG1-7 and transfected this tandem gene into seawater-stimulated cells. ACE-2/ANG1-7 expression were significantly promoted and apoptosis was inhibited in cells transfected with the tandem gene. These results suggest that stimulation of ACE-2/ANG1-7 may be a therapeutic target of ER stress-induced apoptosis in seawater aspiration-induced ALI.
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Affiliation(s)
- MinLong Zhang
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University , Xi'an , People's Republic of China.,Department of Respiration, The 309th Hospital of the Chinese People's Liberation Army, Beijing , People's Republic of China
| | - Yongheng Gao
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University , Xi'an , People's Republic of China
| | - Weiguo Zhao
- Department of Respiration, The 309th Hospital of the Chinese People's Liberation Army, Beijing , People's Republic of China
| | - Gaole Yu
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University , Xi'an , People's Republic of China
| | - Faguang Jin
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University , Xi'an , People's Republic of China
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M. Ahmed M, M. A. Hussein M. Osmoregulatory element binding protein and osmoprotective genes as molecular biomarkers for discriminate patterns of drowning. AUST J FORENSIC SCI 2018. [DOI: 10.1080/00450618.2018.1484163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Mona M. Ahmed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed M. A. Hussein
- Department of Biochemistry, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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Gramatté J, Pietzsch J, Bergmann R, Richter T. Causative treatment of acid aspiration induced acute lung injury - Recent trends from animal experiments and critical perspective. Clin Hemorheol Microcirc 2018; 69:187-195. [PMID: 29630538 DOI: 10.3233/ch-189113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Aspiration of low-pH gastric fluid leads to an initial pneumonitis, which may become complicated by subsequent pneumonia or acute respiratory distress syndrome. Current treatment is at best supportive, but there is growing experimental evidence on the significant contribution of both neutrophils and platelets in the development of this inflammatory pulmonary reaction, a condition that can be attenuated by several medicinal products. This review aims to summarize novel findings in experimental models on pathomechanisms after an acid-aspiration event. Given the clinical relevance, specific emphasis is put on deduced potential experimental therapeutic approaches, which make use of the characteristic alteration of microcirculation in the injured lung.
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Affiliation(s)
- Johannes Gramatté
- Department of Anesthesia and Intensive Care, Carl Gustav Carus University Hospital, Technische Universität Dresden, Dresden, Germany
| | - Jens Pietzsch
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.,Department of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden, Germany
| | - Ralf Bergmann
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Torsten Richter
- Department of Anesthesia and Intensive Care, Carl Gustav Carus University Hospital, Technische Universität Dresden, Dresden, Germany
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Zhang M, Jin F. 1α,25-Dihydroxyvitamin D3 Ameliorates Seawater Aspiration-Induced Lung Injury By Inhibiting The Translocation Of NF-κB and RhoA. Inflammation 2018; 40:832-839. [PMID: 28161733 PMCID: PMC5429345 DOI: 10.1007/s10753-017-0527-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Our previous study have reported that 1α,25-Dihydroxyvitamin D3 (calcitriol) suppresses seawater aspiration-induced ALI in vitro and in vivo. We also have confirmed that treatment with calcitriol ameliorates seawater aspiration-induced inflammation and pulmonary edema via the inhibition of NF-κB and RhoA/Rho kinase pathway activation. In our further work, we investigated the effect of calcitriol on nuclear translocation of NF-κB and membrane translocation of RhoA in vitro. A549 cells and rat pulmonary microvascular endothelial cells (RPMVECs) were cultured with calcitriol or not for 48 h and then stimulated with 25% seawater for 40 min. After these treatments, cells were collected and performed with immunofluorescent staining to observe the translocation of NF-κB and RhoA and the cytoskeleton remodeling. In vitro, seawater stimulation activates nuclear translocation of NF-κB and membrane translocation of RhoA in A549 cells. In addition, seawater administration also induced cytoskeleton remodeling in A549 cells and RPMVECs. However, pretreatment with calcitriol significantly inhibited the activation of NF-κB and RhoA/Rho kinase pathways, as demonstrated by the reduced nuclear translocation of NF-κB and membrane translocation of RhoA in A549 cells. Meanwhile, treatment of calcitriol also regulated the cytoskeleton remodeling in both A549 cells and RPMVECs. These results demonstrated that treatment with calcitriol ameliorates seawater aspiration-induced ALI via inhibition of nuclear translocation of NF-κB and membrane translocation of RhoA and protection of alveolar epithelial and pulmonary microvascular endothelial barrier.
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Affiliation(s)
- Minlong Zhang
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, People's Republic of China
| | - Faguang Jin
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, People's Republic of China.
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Hamacher J, Hadizamani Y, Borgmann M, Mohaupt M, Männel DN, Moehrlen U, Lucas R, Stammberger U. Cytokine-Ion Channel Interactions in Pulmonary Inflammation. Front Immunol 2018; 8:1644. [PMID: 29354115 PMCID: PMC5758508 DOI: 10.3389/fimmu.2017.01644] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 11/10/2017] [Indexed: 12/12/2022] Open
Abstract
The lungs conceptually represent a sponge that is interposed in series in the bodies’ systemic circulation to take up oxygen and eliminate carbon dioxide. As such, it matches the huge surface areas of the alveolar epithelium to the pulmonary blood capillaries. The lung’s constant exposure to the exterior necessitates a competent immune system, as evidenced by the association of clinical immunodeficiencies with pulmonary infections. From the in utero to the postnatal and adult situation, there is an inherent vital need to manage alveolar fluid reabsorption, be it postnatally, or in case of hydrostatic or permeability edema. Whereas a wealth of literature exists on the physiological basis of fluid and solute reabsorption by ion channels and water pores, only sparse knowledge is available so far on pathological situations, such as in microbial infection, acute lung injury or acute respiratory distress syndrome, and in the pulmonary reimplantation response in transplanted lungs. The aim of this review is to discuss alveolar liquid clearance in a selection of lung injury models, thereby especially focusing on cytokines and mediators that modulate ion channels. Inflammation is characterized by complex and probably time-dependent co-signaling, interactions between the involved cell types, as well as by cell demise and barrier dysfunction, which may not uniquely determine a clinical picture. This review, therefore, aims to give integrative thoughts and wants to foster the unraveling of unmet needs in future research.
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Affiliation(s)
- Jürg Hamacher
- Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.,Internal Medicine V - Pneumology, Allergology, Respiratory and Environmental Medicine, Faculty of Medicine, Saarland University, Saarbrücken, Germany.,Lungen- und Atmungsstiftung Bern, Bern, Switzerland
| | - Yalda Hadizamani
- Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.,Lungen- und Atmungsstiftung Bern, Bern, Switzerland
| | - Michèle Borgmann
- Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.,Lungen- und Atmungsstiftung Bern, Bern, Switzerland
| | - Markus Mohaupt
- Internal Medicine, Sonnenhofspital Bern, Bern, Switzerland
| | | | - Ueli Moehrlen
- Paediatric Visceral Surgery, Universitäts-Kinderspital Zürich, Zürich, Switzerland
| | - Rudolf Lucas
- Department of Pharmacology and Toxicology, Vascular Biology Center, Medical College of Georgia, Augusta, GA, United States
| | - Uz Stammberger
- Lungen- und Atmungsstiftung Bern, Bern, Switzerland.,Novartis Institutes for Biomedical Research, Translational Clinical Oncology, Novartis Pharma AG, Basel, Switzerland
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Yuan JJ, Zhang XT, Bao YT, Chen XJ, Shu YZ, Chen JL, Chen W, Du B, Pang QF. Heme oxygenase-1 participates in the resolution of seawater drowning-induced acute respiratory distress syndrome. Respir Physiol Neurobiol 2018; 247:12-19. [DOI: 10.1016/j.resp.2017.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 08/17/2017] [Accepted: 08/17/2017] [Indexed: 12/25/2022]
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Zhang M, Yan X, Liu W, Sun R, Xie Y, Jin F. Endothelial semaphorin 7A promotes seawater aspiration-induced acute lung injury through plexin C1 and β1 integrin. Mol Med Rep 2017; 16:4215-4221. [PMID: 28765893 DOI: 10.3892/mmr.2017.7097] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 06/01/2017] [Indexed: 11/06/2022] Open
Abstract
Inflammation and edema are two main characteristics in seawater aspiration‑induced acute lung injury (ALI). In a previous study of the authors, it was demonstrated that endothelial semaphorin 7A (SEMA7A) serves an important role in the development of seawater‑induced inflammation and edema. However, the mechanism of endothelial SEMA7A‑mediated ALI remains unclear. Therefore, the authors explored the effect of SEMA7A in rat pulmonary microvascular endothelial cells (RPMVECs) and the interaction between endothelial SEMA7A and alveolar macrophages during seawater aspiration‑induced ALI. The role of SEMA7A in endothelial permeability was detected using plexin C1 blocking antibody or SEMA7A small interfering (si)RNA. In addition, RPMVECs were co‑cultured with rat alveolar macrophage cell line‑NR8383 cells and pro‑inflammatory cytokine production was detected. Interaction between the β1 integrin and SEMA7A was detected using the β1 integrin blocking antibody or SEMA7A siRNA. Seawater stimulation induced endothelial cytoskeleton remodeling, endothelial permeability, phosphorylation of cofilin, and increased the vascular endothelial growth factor (VEGF) expression in RPMVECs. Moreover, seawater stimulation led to expression of proinflammatory cytokines and activated the nuclear factor‑κB pathway in co‑cultured cells. However, blockage with the plexin C1 antibody inhibited endothelial cytoskeleton remodeling, endothelial permeability, phosphorylation of cofilin, and treatment with SEMA7A siRNA inhibited expression of VEGF in RPMVECs. In addition, blockage with β1 integrin antibody reduced expression of proinflammatory cytokines and inhibited activation of NF‑κB in co‑culture cells. These results suggest that SEMA7A promotes seawater induced lung edema via plexin C1 and stimulates seawater induced lung inflammation via β1 integrin.
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Affiliation(s)
- Minlong Zhang
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Xue Yan
- School of Medicine, Xianyang Vocational and Technical College, Xianyang, Shaanxi 712000, P.R. China
| | - Wei Liu
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Ruilin Sun
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yonghong Xie
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Faguang Jin
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
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Jin F, Li C. Seawater-drowning-induced acute lung injury: From molecular mechanisms to potential treatments. Exp Ther Med 2017; 13:2591-2598. [PMID: 28587319 PMCID: PMC5450642 DOI: 10.3892/etm.2017.4302] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 01/26/2017] [Indexed: 01/11/2023] Open
Abstract
Drowning is a crucial public safety problem and is the third leading cause of accidental fatality, claiming ~372,000 lives annually, worldwide. In near-drowning patients, acute lung injury (ALI) or acute respiratory distress syndrome (ARDS) is one of the most common complications. Approximately 1/3 of near-drowning patients fulfill the criteria for ALI or ARDS. In the present article, the current literature of near-drowning, pathophysiologic changes and the molecular mechanisms of seawater-drowning-induced ALI and ARDS was reviewed. Seawater is three times more hyperosmolar than plasma, and following inhalation of seawater the hyperosmotic seawater may cause serious injury in the lung and alveoli. The perturbing effects of seawater may be primarily categorized into insufficiency of pulmonary surfactant, blood-air barrier disruption, formation of pulmonary edema, inflammation, oxidative stress, autophagy, apoptosis and various other hypertonic stimulation. Potential treatments for seawater-induced ALI/ARDS were also presented, in addition to suggestions for further studies. A total of nine therapeutic strategies had been tested and all had focused on modulating the over-activated immunoreactions. In conclusion, seawater drowning is a complex injury process and the exact mechanisms and potential treatments require further exploration.
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Affiliation(s)
- Faguang Jin
- Department of Respiratory and Critical Care Medicine, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Congcong Li
- Department of Respiratory and Critical Care Medicine, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
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Jin Z, Suen KC, Ma D. Perioperative "remote" acute lung injury: recent update. J Biomed Res 2017; 31:197-212. [PMID: 28808222 PMCID: PMC5460608 DOI: 10.7555/jbr.31.20160053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 07/16/2016] [Indexed: 01/21/2023] Open
Abstract
Perioperative acute lung injury (ALI) is a syndrome characterised by hypoxia and chest radiograph changes. It is a serious post-operative complication, associated with considerable mortality and morbidity. In addition to mechanical ventilation, remote organ insult could also trigger systemic responses which induce ALI. Currently, there are limited treatment options available beyond conservative respiratory support. However, increasing understanding of the pathophysiology of ALI and the biochemical pathways involved will aid the development of novel treatments and help to improve patient outcome as well as to reduce cost to the health service. In this review we will discuss the epidemiology of peri-operative ALI; the cellular and molecular mechanisms involved on the pathological process; the clinical considerations in preventing and managing perioperative ALI and the potential future treatment options.
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Affiliation(s)
- Zhaosheng Jin
- Anaesthetics, Pain Medicine and intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London SW10 9NH, UK
| | - Ka Chun Suen
- Anaesthetics, Pain Medicine and intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London SW10 9NH, UK
| | - Daqing Ma
- Anaesthetics, Pain Medicine and intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London SW10 9NH, UK
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Chen J, Chen G, Xiao D, Peng W, Yu G, Lin Y, Zheng F. Continuous venovenous hemofiltration decreases mortality and ameliorates acute lung injury in canine model of severe salt water drowning. Scand J Trauma Resusc Emerg Med 2016; 24:40. [PMID: 27036317 PMCID: PMC4818413 DOI: 10.1186/s13049-016-0224-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 03/10/2016] [Indexed: 11/15/2022] Open
Abstract
Background Pulmonary edema is an important cause of complications and death in severe drowning. Continuous veno-venous hemofiltration (CVVH) may reduce pulmonary edema and thus may be a treatment modality for severe sea water drowning resuscitation. Methos 20 dogs were anesthetized and tracheally intubated. 10 ml/kg of sea water was infused into trachea in a minute. All animals developed signs of respiratory distress and severe hypoxia (PaO2 < 40 mmHg) within 15 minutes after infusion. They were then mechanical ventilated and randomized to receive either CVVH (n = 10) or no additional treatment (control, n = 10) and followed over 4 hours. Arterial gas, hemodynamic parameters, and the levels of circulating inflammatory cytokines including interleukin 6 (IL-6), interleukin 8 (IL-8), and tumor necrosis factor α (TNFα) were determined. Additionally, blood endothelin and the levels of oxidative stress in lung were measured at sacrifice. Results 5 animals in the control group (50 %) died within 4 hours after sea water aspiration, while 10 animals received CVVH all survived (p < 0.05). Importantly, CVVH significantly improved blood gas exchange as evidenced by higher PaO2, normal oxygen saturation, and no carbon dioxide retention after 3 hour of CVVH, while also correcting against acidosis. Levels of circulating IL-6, IL-8, and TNFα were elevated in control but not in CVVH group (p < 0.01). CVVH also reduced plasma endothelin and alleviated oxidative stress. Histology examination further revealed reductions in pulmonary alveolar injury, blood congestion, and inflammation by CVVH. Discussion and conclusions CVVH decreased mortality and pulmonary injury and largely maintained hemodynamic and acid-base balance in animals with severe sea water drowning and thus, may be added as a new measure to aid in resuscitation from severe sea water drowning. Trial registration Animal protocol number: FZG0001859 http://www.fzzyy.com.
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Affiliation(s)
- Jian Chen
- Department of Nephrology, Fuzhou General Hospital, Nanjing Military Command, Fuzhou, China
| | - Guangming Chen
- Department of Nephrology, Fuzhou General Hospital, Nanjing Military Command, Fuzhou, China
| | - Daping Xiao
- Department of Nephrology, Fuzhou General Hospital, Nanjing Military Command, Fuzhou, China
| | - Weihua Peng
- Department of Nephrology, Fuzhou General Hospital, Nanjing Military Command, Fuzhou, China
| | - Guoqing Yu
- Department of Nephrology, Fuzhou General Hospital, Nanjing Military Command, Fuzhou, China
| | - Yueyong Lin
- Department of Nephrology, Fuzhou General Hospital, Nanjing Military Command, Fuzhou, China
| | - Feng Zheng
- Department of Nephrology, The Second Hospital, and Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China.
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