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Lowe PP, Gyongyosi B, Satishchandran A, Iracheta-Vellve A, Ambade A, Kodys K, Catalano D, Ward DV, Szabo G. Alcohol-related changes in the intestinal microbiome influence neutrophil infiltration, inflammation and steatosis in early alcoholic hepatitis in mice. PLoS One 2017; 12:e0174544. [PMID: 28350851 PMCID: PMC5370121 DOI: 10.1371/journal.pone.0174544] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 03/10/2017] [Indexed: 12/20/2022] Open
Abstract
Background Alcohol-induced intestinal dysbiosis disrupts homeostatic gut-liver axis function and is essential in the development of alcoholic liver disease. Here, we investigate changes in enteric microbiome composition in a model of early alcoholic steatohepatitis and dissect the pathogenic role of intestinal microbes in alcohol-induced liver pathology. Materials and methods Wild type mice received a 10-day diet that was either 5% alcohol-containing or an isocaloric control diet plus a single binge. 16S rDNA sequencing defined the bacterial communities in the cecum of alcohol- and pair-fed animals. Some mice were treated with an antibiotic cocktail prior to and throughout alcohol feeding. Liver neutrophils, cytokines and steatosis were evaluated. Results Acute-on-chronic alcohol administration induced shifts in various bacterial phyla in the cecum, including increased Actinobacteria and a reduction in Verrucomicrobia driven entirely by a reduction in the genus Akkermansia. Antibiotic treatment reduced the gut bacterial load and circulating bacterial wall component lipopolysaccharide (LPS). We found that bacterial load suppression prevented alcohol-related increases in the number of myeloperoxidase- (MPO) positive infiltrating neutrophils in the liver. Expression of liver mRNA tumor necrosis factor alpha (Tnfα), C-X-C motif chemokine ligand 1 (Cxcl1) and circulating protein monocyte chemoattractant protein-1 (MCP-1) were also reduced in antibiotic-treated alcohol-fed mice. Alcohol-induced hepatic steatosis measured by Oil-Red O staining was significantly reduced in antibiotic treated mice. Genes regulating lipid production and storage were also altered by alcohol and antibiotic treatment. Interestingly, antibiotic treatment did not protect from alcohol-induced increases in serum aminotransferases (ALT/AST). Conclusions Our data indicate that acute-on-chronic alcohol feeding alters the microflora at multiple taxonomic levels and identifies loss of Akkermansia as an early marker of alcohol-induced gut dysbiosis. We conclude that gut microbes influence liver inflammation, neutrophil infiltration and liver steatosis following alcohol consumption and these data further emphasize the role of the gut-liver axis in early alcoholic liver disease.
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Affiliation(s)
- Patrick P. Lowe
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Benedek Gyongyosi
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Abhishek Satishchandran
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Arvin Iracheta-Vellve
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Aditya Ambade
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Karen Kodys
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Donna Catalano
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Doyle V. Ward
- Center for Microbiome Research, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Gyongyi Szabo
- Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
- * E-mail:
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Abstract
Catechins are natural polyphenolic phytochemicals that exist in food and medicinal plants, such as tea, legume and rubiaceae. An increasing number of studies have associated the intake of catechins-rich foods with the prevention and treatment of chronic diseases in humans, such as inflammatory bowel disease (IBD). Some studies have demonstrated that catechins could significantly inhibit the excessive oxidative stress through direct or indirect antioxidant effects and promote the activation of the antioxidative substances such as glutathione peroxidases (GPO) and glutathione (GSH), reducing the oxidative damages to the colon. In addition, catechins can also regulate the infiltration and proliferation of immune related-cells, such as neutrophils, colonic epithelial cells, macrophages, and T lymphocytes, helping reduce the inflammatory relations and provide benefits to IBD. Perhaps catechins can further inhibit the deterioration of intestinal lesions through regulating the cell gap junctions. Furthermore, catechins can exert their significant anti-inflammatory properties by regulating the activation or deactivation of inflammation-related oxidative stress-related cell signaling pathways, such as nuclear factor-kappa B (NF-κB), mitogen activated protein kinases (MAPKs), transcription factor nuclear factor (erythroid-derived 2)-like 2 (Nrf2), signal transducer and the activator of transcription 1/3 (STAT1/3) pathways. Finally, catechins can also stabilize the structure of the gastrointestinal micro-ecological environment via promoting the proliferation of beneficial intestinal bacteria and regulating the balance of intestinal flora, so as to relieve the IBD. Furthermore, catechins may regulate the tight junctions (TJ) in the epithelium. This paper elaborates the currently known possible molecular mechanisms of catechins in favor of IBD.
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Affiliation(s)
- Fei-Yan Fan
- Department of Gastroenterology, First Affiliated Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang 110001, China.
| | - Li-Xuan Sang
- Department of Geriatrics, First Affiliated Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang 110001, China.
| | - Min Jiang
- Department of Gastroenterology, First Affiliated Hospital of China Medical University, 155 Nanjing North Street, Heping District, Shenyang 110001, China.
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Sun J, Bao J, Shi Y, Zhang B, Yuan L, Li J, Zhang L, Sun M, Zhang L, Sun W. Effect of simvastatin on MMPs and TIMPs in cigarette smoke-induced rat COPD model. Int J Chron Obstruct Pulmon Dis 2017; 12:717-724. [PMID: 28260878 PMCID: PMC5327908 DOI: 10.2147/copd.s110520] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Proteases may play an important role in the development of chronic obstructive pulmonary disease and emphysema in response to cigarette smoke exposure (CSE). The current study was designed to investigate the expression of matrix metalloproteinase (MMP)-8, MMP-9, MMP-12, tissue inhibitor of MMP (TIMP)-1, and TIMP-4 in rat lung tissues in response to CSE, and assessed the effect of simvastatin in regulating expression of MMPs and TIMPs. METHODS Thirty normal Sprague Dawley (SD) rats were divided into control (n=10), CSE (n=10), and CSE plus simvastatin (n=10) groups. Animals were whole-body exposed to the cigarette smoke in the box for 1 hour each time, twice a day, 5 days a week for 16 weeks. Animals of CSE + simvastatin group were intra-gastrically administered simvastatin at a dose of 5 mg/kg/day followed by CSE. Bronchoalveolar lavage fluid was harvested for inflammatory cell count and lung tissues were stained for morphologic examination. Expression of mRNA and protein level of MMP-8, MMP-9, MMP-12, TIMP-1, and TIMP-4 was assessed by real-time reverse transcription polymerase chain reaction and immunohistochemistry, respectively. RESULTS CSE resulted in a significant increase of mean linear intercept (MLI: 34.6±2.0 μm) and bronchial wall thickness and diameter (BWT/D, 0.250±0.062) compared to control (MLI: 24.0±1.7 μm, BWT/D: 0.160±0.034, P<0.01). In contrast, mean alveolar number was significantly decreased in the CSE group than that in the control group (13.5±2.0 of CSE vs 21.5±2.0 N/μm2 of control, P>0.01). Simvastatin slightly but not significantly prevented alteration of MLI, BWT/D, and mean alveolar number (MLI: 33.4±1.4 μm; BWT/D: 0.220±0.052; mean alveolar number: 15.5±2.5 N/μm2, P>0.05). Total white blood cell was significantly increased in the bronchoalveolar lavage fluid of smoking group (3.3±2.5×109 cells/L vs 1.1±1.3×109 cells/L of control, P<0.01), and it was significantly reduced by simvastatin (2.3±2.1×109 cells/L, P<0.01). CSE resulted in significantly increased accumulation of neutrophils and macrophages (neutrophils: 14.5%±1.3% of CSE group vs 9.1%±1.5% of control; macrophage: 91%±3% of CSE group vs 87%±2% of control, P<0.05), and simvastatin significantly reduced neutrophils (12.9%±2.0%, P<0.05) in the bronchoalveolar lavage fluid, but had no effect on macrophage (89%±1.6%, P>0.05). In response to CSE, MMP-8, MMP-9, and MMP-12 mRNA were upregulated more than sevenfold, while TIMP-1 and TIMP-4 increased two- to fivefold. Simvastatin significantly blocked upregulation of MMP-8 and -9 (P<0.01), but had no effect on MMP-12, TIMP-1 and TIMP-4 mRNA (P>0.05). In addition, simvastatin significantly blocked cigarette smoke-induced MMP-8 and -9 protein synthesis, while it had no significant effect on TIMP-1 and -4 protein synthesis even in the presence of cigarette smoke. CONCLUSION CSE resulted in imbalance of MMPs and TIMPs, and by which mechanism, cigarette smoke may lead to insufficient lung tissue repair. Simvastatin partially blocked airway inflammation and MMP production and, thus, statins may modulate composition of the lung extracellular matrix.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/pharmacology
- Bronchoalveolar Lavage Fluid/immunology
- Disease Models, Animal
- Lung/drug effects
- Lung/enzymology
- Lung/immunology
- Macrophages, Alveolar/drug effects
- Macrophages, Alveolar/enzymology
- Macrophages, Alveolar/immunology
- Male
- Matrix Metalloproteinase 12/metabolism
- Matrix Metalloproteinase 8/genetics
- Matrix Metalloproteinase 8/metabolism
- Matrix Metalloproteinase 9/genetics
- Matrix Metalloproteinase 9/metabolism
- Neutrophil Infiltration/drug effects
- Neutrophils/drug effects
- Neutrophils/enzymology
- Neutrophils/immunology
- Pulmonary Disease, Chronic Obstructive/drug therapy
- Pulmonary Disease, Chronic Obstructive/enzymology
- Pulmonary Disease, Chronic Obstructive/genetics
- Pulmonary Disease, Chronic Obstructive/immunology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats, Sprague-Dawley
- Simvastatin/pharmacology
- Smoke/adverse effects
- Smoking/adverse effects
- Tissue Inhibitor of Metalloproteinase-1/metabolism
- Tissue Inhibitor of Metalloproteinases/genetics
- Tissue Inhibitor of Metalloproteinases/metabolism
- Tissue Inhibitor of Metalloproteinase-4
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Affiliation(s)
- Jiawei Sun
- Department of Respiratory Medicine, First Hospital of Hebei Medical University
| | - Jie Bao
- Department of Respiratory Medicine, Chest Hospital of Hebei Province
| | - Yanan Shi
- Maternal and Child Health Care Center of Hebei Province
| | - Bin Zhang
- Department of Emergency, First Hospital of Hebei Medical University, Shijiazhuang
| | - Lindong Yuan
- Department of Respiratory Medicine, People’s Hospital of Liaocheng, Liaocheng
| | - Junhong Li
- Department of Respiratory Medicine, First Hospital of Hebei Medical University
| | - Lihai Zhang
- Department of Respiratory Medicine, First Hospital of Hebei Medical University
| | - Mo Sun
- Hebei Medical University, Shijiazhuang, People’s Republic of China
| | - Ling Zhang
- Department of Respiratory Medicine, Chest Hospital of Hebei Province
| | - Wuzhuang Sun
- Department of Respiratory Medicine, First Hospital of Hebei Medical University
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Zhao Y, He X, Ma X, Wen J, Li P, Wang J, Li R, Zhu Y, Wei S, Li H, Zhou X, Li K, Liu H, Xiao X. Paeoniflorin ameliorates cholestasis via regulating hepatic transporters and suppressing inflammation in ANIT-fed rats. Biomed Pharmacother 2017; 89:61-68. [PMID: 28214689 DOI: 10.1016/j.biopha.2017.02.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/25/2017] [Accepted: 02/08/2017] [Indexed: 12/31/2022] Open
Abstract
Paeoniflorin has shown the obvious effect on cholestasis according to our previous research. However, its mechanism has not been absolutely explored yet. This study aims at evaluating the potential effect of paeoniflorin on alpha-naphthylisothiocyanate (ANIT) -induced cholestasis by inhibiting nuclear factor kappa-B (NF-κB) and simultaneously regulating hepatocyte transporters. Cholestasis was induced by administration of ANIT. The effect of paeoniflorin on serum indices such as total bilirubin (TBIL), direct bilirubin (DBIL), aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), γ-glutamyltranspeptidase (γ-GT), total bile acid (TBA) and histopathology of liver were determined. Liver protein levels of NF-κB, interleukin 1β (IL-1β) and the hepatocyte transporters such as Na+/taurocholate cotransporting polypeptide (NTCP), bile salt export pump (BSEP), multidrug resistance-associated protein 2 (MRP2) and cholesterol 7α-hydroxylase (Cyp7a1) were investigated by western blotting. The results demonstrated that paeoniflorin could decrease serum ALT, AST, ALP, γ-GT, TBIL, DBIL and TBA in ANIT-treated rats. Histological examination revealed that rats treated with paeoniflorin represented fewer neutrophils infiltration, edema and necrosis in liver tissue compared with ANIT rats. Moreover, paeoniflorin significantly reduced the over expressions of NF-κB and IL-1β induced by ANIT in liver tissue. In addition, the relative protein expressions of NTCP, BSEP, MRP2 but not Cyp7a1 were also restored by paeoniflorin. The potential mechanism of paeoniflorin in alleviating ANIT-induced cholestasis seems to be related to reduce the over expressions of NF-κB and hepatocyte transporters such as NTCP, BSEP as well as MRP2.
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Affiliation(s)
- Yanling Zhao
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China.
| | - Xuan He
- Department of Pharmacy, Xindu District Shibantan Public Hospital, Chengdu, People's Republic of China
| | - Xiao Ma
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu,People's Republic of China
| | - Jianxia Wen
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China; Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu,People's Republic of China
| | - Pengyan Li
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Jiabo Wang
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Ruisheng Li
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Yun Zhu
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Shizhang Wei
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Haotian Li
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Xuelin Zhou
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Kun Li
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Honghong Liu
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Xiaohe Xiao
- Department of Pharmacy, 302 Hospital of People's Liberation Army, Beijing, People's Republic of China.
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Newton VL, Guck JD, Cotter MA, Cameron NE, Gardiner NJ. Neutrophils Infiltrate the Spinal Cord Parenchyma of Rats with Experimental Diabetic Neuropathy. J Diabetes Res 2017; 2017:4729284. [PMID: 28293643 PMCID: PMC5331287 DOI: 10.1155/2017/4729284] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 01/15/2017] [Indexed: 01/07/2023] Open
Abstract
Spinal glial cell activation and cytokine secretion have been implicated in the etiology of neuropathic pain in a number of experimental models, including diabetic neuropathy. In this study, streptozotocin- (STZ-) induced diabetic rats were either untreated or treated with gabapentin (50 mg/kg/day by gavage for 2 weeks, from 6 weeks after STZ). At 8 weeks after STZ, hypersensitivity was confirmed in the untreated diabetic rats as a reduced response threshold to touch, whilst mechanical thresholds in gabapentin-treated diabetic rats were no different from controls. Diabetes-associated thermal hypersensitivity was also ameliorated by gabapentin. We performed a cytokine profiling array in lumbar spinal cord samples from control and diabetic rats. This revealed an increase in L-selectin, an adhesion molecule important for neutrophil transmigration, in the spinal cord of diabetic rats but not diabetic rats treated with gabapentin. Furthermore, we found an increase in the number of neutrophils present in the parenchyma of the spinal cord, which was again ameliorated in gabapentin-treated diabetic rats. Therefore, we suggest that dysregulated spinal L-selectin and neutrophil infiltration into the spinal cord could contribute to the pathogenesis of painful diabetic neuropathy.
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Affiliation(s)
- Victoria L. Newton
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Jonathan D. Guck
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Mary A. Cotter
- School of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | | | - Natalie J. Gardiner
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PT, UK
- *Natalie J. Gardiner:
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Peng YC, Huang LR, Ho HC, Chang CS, Lee SW, Cheng CC, Wen MC, Yeh HZ, Ho SP. The effect of proton pump inhibitors on the gastric mucosal microenvironment. ADV CLIN EXP MED 2017; 26:39-43. [PMID: 28397430 DOI: 10.17219/acem/33116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Proton pump inhibitors (PPIs) are widely applied for acid related disorders, and possess pleiotropic biological functions. The effect of PPIs on the gastric mucosa, neutrophil and Helicobacter pylori (H. pylori) infiltration and glandular atrophy has not been well investigated, particularly the duration of the effects of PPIs. OBJECTIVES To investigate the effects of PPIs on neutrophil infiltration, H. pylori infiltration and the gastric mucosa. MATERIAL AND METHODS A total of 76 adult patients with gastrointestinal symptoms who had undergone upper gastrointestinal endoscopy were enrolled in the study. Each patient's history was recorded, including smoking, alcohol consumption and the duration of PPI use prior to gastric biopsy. Endoscopic biopsies of gastric antral mucosa were performed and evaluated by histology. Neutrophil and H. pylori infiltration were graded by H & E staining in accordance with the updated Sydney system. RESULTS Among the 76 patients, 44 patients had H. pylori infection and 19 patients had taken PPIs for varying durations prior to gastric biopsy. Neutrophil infiltration was significantly inhibited by PPIs (p = 0.005). The duration of PPI use was correlated with inhibition of neutrophil and H. pylori infiltration. A logistical regression analysis demonstrated that PPIs significantly inhibited neutrophil infiltration in the gastric mucosa and were associated with atrophy of the mucosa. CONCLUSIONS PPIs attenuated neutrophil infiltration of gastric mucosa, and may be related to atrophy of the mucosa.
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Affiliation(s)
- Yen-Chun Peng
- Division of Gastroenterology, Department of Internal Medicine,Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Veterinary Medicine, School of Medicine, National Chung Hsing University, Taichung, Taiwan
- National Yang Ming University, Taipei, Taiwan
| | - Lan-Ru Huang
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Hui-Ching Ho
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chi-Sen Chang
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Shou-Wu Lee
- Division of Gastroenterology, Department of Internal Medicine,Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ching-Chang Cheng
- Laboratory Animal Service Center, Office of Research and Development, China Medical University, Taichung, Taiwan
| | - May-Ching Wen
- Department of Pathology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Hong-Zen Yeh
- Division of Gastroenterology, Department of Internal Medicine,Taichung Veterans General Hospital, Taichung, Taiwan
| | - Shu-Peng Ho
- Department of Veterinary Medicine, School of Medicine, National Chung Hsing University, Taichung, Taiwan
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Rodriguez-Nogales A, Algieri F, De Matteis L, Lozano-Perez AA, Garrido-Mesa J, Vezza T, de la Fuente JM, Cenis JL, Gálvez J, Rodriguez-Cabezas ME. Intestinal anti-inflammatory effects of RGD-functionalized silk fibroin nanoparticles in trinitrobenzenesulfonic acid-induced experimental colitis in rats. Int J Nanomedicine 2016; 11:5945-5958. [PMID: 27877040 PMCID: PMC5108622 DOI: 10.2147/ijn.s116479] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Current treatment of inflammatory bowel disease is based on the use of immunosuppressants or anti-inflammatory drugs, which are characterized by important side effects that can limit their use. Previous research has been performed by administering these drugs as nanoparticles that target the ulcerated intestinal regions and increase their bioavailability. It has been reported that silk fibroin can act as a drug carrier and shows anti-inflammatory properties. PURPOSE This study was designed to enhance the interaction of the silk fibroin nanoparticles (SFNs) with the injured intestinal tissue by functionalizing them with the peptide motif RGD (arginine-glycine-aspartic acid) and to evaluate the intestinal anti-inflammatory properties of these RGD-functionalized silk fibroin nanoparticles (RGD-SFNs) in the trinitrobenzenesulfonic acid (TNBS) model of rat colitis. MATERIALS AND METHODS SFNs were prepared by nanoprecipitation in methanol, and the linear RGD peptide was linked to SFNs using glutaraldehyde as the crosslinker. The SFNs (1 mg/rat) and RGD-SFNs (1 mg/rat) were administered intrarectally to TNBS-induced colitic rats for 7 days. RESULTS The SFN treatments ameliorated the colonic damage, reduced neutrophil infiltration, and improved the compromised oxidative status of the colon. However, only the rats treated with RGD-SFNs showed a significant reduction in the expression of different pro-inflammatory cytokines (interleukin [IL]-1β, IL-6, and IL-12) and inducible nitric oxide synthase in comparison with the TNBS control group. Moreover, the expression of both cytokine-induced neutrophil chemoattractant-1 and monocyte chemotactic protein-1 was significantly diminished by the RGD-SFN treatment. However, both treatments improved the intestinal wall integrity by increasing the gene expression of some of its markers (trefoil factor-3 and mucins). CONCLUSION SFNs displayed intestinal anti-inflammatory properties in the TNBS model of colitis in rats, which were improved by functionalization with the RGD peptide.
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Affiliation(s)
- Alba Rodriguez-Nogales
- CIBER-EHD, Department of Pharmacology, ibs.GRANADA, Center for Biomedical Research, University of Granada, Granada
| | - Francesca Algieri
- CIBER-EHD, Department of Pharmacology, ibs.GRANADA, Center for Biomedical Research, University of Granada, Granada
| | - Laura De Matteis
- Instituto de Nanociencia de Aragón, Universidad de Zaragoza, Zaragoza
| | - A. Abel Lozano-Perez
- Department of Biotechnology, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, Murcia, Spain
| | - Jose Garrido-Mesa
- CIBER-EHD, Department of Pharmacology, ibs.GRANADA, Center for Biomedical Research, University of Granada, Granada
| | - Teresa Vezza
- CIBER-EHD, Department of Pharmacology, ibs.GRANADA, Center for Biomedical Research, University of Granada, Granada
| | - J M. de la Fuente
- Instituto de Nanociencia de Aragón, Universidad de Zaragoza, Zaragoza
| | - Jose Luis Cenis
- Department of Biotechnology, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, Murcia, Spain
| | - Julio Gálvez
- CIBER-EHD, Department of Pharmacology, ibs.GRANADA, Center for Biomedical Research, University of Granada, Granada
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Kim KH, Lee JY, Kwun MJ, Choi JY, Han CW, Ha KT, Jeong SI, Jeong HS, Joo M. Therapeutic effect of Mahaenggamseok-tang on neutrophilic lung inflammation is associated with NF-κB suppression and Nrf2 activation. J Ethnopharmacol 2016; 192:486-495. [PMID: 27660010 DOI: 10.1016/j.jep.2016.09.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 09/06/2016] [Accepted: 09/18/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mahaenggamseok-tang (MHGST), an herbal formula in traditional Asian medicine, has been used to treat patients with various pulmonary diseases including common cold and influenza. However, the potential therapeutic effect of MHGST on acute lung injury (ALI), a leading cause of death worldwide, and the anti-inflammatory mechanisms of MHGST remained less understood. MATERIALS AND METHODS The methanol extract of MHGST was prepared and fingerprinted by HPLC. For the induction of ALI, C57BL/6 mice (n=5/group) received a single intraperitoneal (i.p.) injection of LPS. Referring to the dose for patients, two different amounts of MHGST were delivered in an aerosol to mouse lungs via trachea 2h after the i.p. LPS administration. Lung histology, bronchoalveolar lavage fluid, myeloperoxidase (MPO) activity, and the expression of inflammatory and Nrf2-dependent genes were analyzed to determine the effect of MHGST on lung inflammation. For mechanistic studies, western blotting and semi-quantitative RT-PCR were conducted using RAW 264.7 cells. RESULTS When administered 2h after the onset of ALI, MHGST relieved lung pathology characteristic to ALI, with decreases of neutrophil infiltration and MPO activity. While suppressing the expression of inflammatory genes, MHGST increased the expression of Nrf2-dependent genes in ALI mouse lungs. Concordantly, MHGST activated Nrf2 activity while suppressing NF-κB in RAW 264.7 cells. CONCLUSION MHGST suppressed neutrophilic lung inflammation, a hallmark of ALI, which was associated with the activation of anti-inflammatory Nrf2 and the suppression of pro-inflammatory NF-κB. Our results suggest that MHGST has a therapeutic potential against ALI.
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Affiliation(s)
- Kyun Ha Kim
- School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Ji Yeon Lee
- School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Min Jung Kwun
- School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Jun-Young Choi
- Department of Internal Medicine, Korean Medicine Hospital, Pusan National University, Yangsan 50612, Republic of Korea
| | - Chang Woo Han
- Department of Internal Medicine, Korean Medicine Hospital, Pusan National University, Yangsan 50612, Republic of Korea
| | - Ki-Tae Ha
- School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea
| | - Seung-Il Jeong
- Jeonju Biomaterials Institute, Jeonju 561-360, Republic of Korea
| | - Han-Sol Jeong
- School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea.
| | - Myungsoo Joo
- School of Korean Medicine, Pusan National University, Yangsan 50612, Republic of Korea.
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Li-Mei W, Jie T, Shan-He W, Dong-Mei M, Peng-Jiu Y. Anti-inflammatory and Anti-oxidative Effects of Dexpanthenol on Lipopolysaccharide Induced Acute Lung Injury in Mice. Inflammation 2016; 39:1757-63. [PMID: 27469104 DOI: 10.1007/s10753-016-0410-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The aim of this study is to investigate the effects of dexpanthenol in a model of acute lung injury (ALI) induced by lipopolysaccharides (LPS). Lung injury was induced by exposure to atomized LPS. Mice were randomly divided into four groups: control group; Dxp (500 mg/kg) group; LPS group; LPS + Dxp (500 mg/kg) group. The effects of dexpanthenol on LPS-induced neutrophil recruitment, cytokine levels, total protein concentration, myeloperoxidase (MPO), malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione (GSH) contents were examined. Additionally, lung tissue was examined by histology to investigate the changes in pathology in the presence and absence of dexpanthenol. In LPS-challenged mice, dexpanthenol significantly improved lung edema. Dexpanthenol also markedly inhibited the LPS-induced neutrophiles influx, protein leakage, and release of TNF-α and IL-6 in bronchoalveolar lavage fluid (BALF). Furthermore, dexpanthenol attenuated MPO activity and MDA contents and increased SOD and GSH activity in the LPS-challenged lung tissue. These data suggest that dexpanthenol protects mice from LPS-induced acute lung injury by its anti-inflammatory and anti-oxidative activities.
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Affiliation(s)
- Wan Li-Mei
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510080, China
| | - Tan Jie
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, 510080, China
| | - Wan Shan-He
- School of Pharmaceutical Science, Southern Medical University, Guangzhou, 510515, China
| | - Meng Dong-Mei
- Department of Pharmacy, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Yu Peng-Jiu
- Department of Pharmacy, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.
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Algieri F, Rodriguez-Nogales A, Vezza T, Garrido-Mesa J, Garrido-Mesa N, Utrilla MP, González-Tejero MR, Casares-Porcel M, Molero-Mesa J, Del Mar Contreras M, Segura-Carretero A, Pérez-Palacio J, Diaz C, Vergara N, Vicente F, Rodriguez-Cabezas ME, Galvez J. Anti-inflammatory activity of hydroalcoholic extracts of Lavandula dentata L. and Lavandula stoechas L. J Ethnopharmacol 2016; 190:142-158. [PMID: 27269390 DOI: 10.1016/j.jep.2016.05.063] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 05/09/2016] [Accepted: 05/31/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Plants from genus Lavandula have been used as anti-inflammatory drugs in Mediterranean traditional medicine. Nowadays, there is a growing interest for complementary medicine, including herbal remedies, to treat inflammatory bowel disease (IBD). AIM OF THE STUDY To test the anti-inflammatory properties of Lavandula dentata and Lavandula stoechas extracts in two inflammatory experimental models: TNBS model of rat colitis and the carrageenan-induced paw edema in mice, in order to mimic the intestinal conditions and the extra-intestinal manifestations of human IBD, respectively. MATERIAL AND METHODS The extracts were characterized through the qualitative HPLC analysis. Then, they were assayed in vitro and in vivo. In vitro studies were performed in BMDMs and CMT-93 epithelial cells with different concentrations of the extracts (ranging from 0.1 to 100µg/ml). The extracts were tested in vivo in the TNBS model of rat colitis (10 and 25mg/kg) and in the carrageenan-induced paw edema in mice (10, 25 and 100mg/kg). RESULTS L. dentata and L. stoechas extracts displayed immunomodulatory properties in vitro down-regulating different mediators of inflammation like cytokines and nitric oxide. They also showed anti-inflammatory effects in the TNBS model of colitis as evidenced by reduced myeloperoxidase activity and increased total glutathione content, indicating a decrease of neutrophil infiltration and an improvement of the oxidative state. Besides, both extracts modulated the expression of pro-inflammatory cytokines and chemokines, and ameliorated the altered epithelial barrier function. They also displayed anti-inflammatory effects in the carrageenan-induced paw edema in mice, since a significant reduction of the paw thickness was observed. This was associated with a down-regulation of the expression of different inducible enzymes like MMP-9, iNOS and COX-2 and pro-inflammatory cytokines, all involved in the maintenance of the inflammatory condition. CONCLUSION L. dentata and L. stoechas extracts showed intestinal anti-inflammatory effect, confirming their potential use as herbal remedies in gastrointestinal disorders. In addition, their anti-inflammatory effect was also observed in other locations, thus suggesting a possible use for the treatment of the extra-intestinal symptoms of IBD.
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Affiliation(s)
- Francesca Algieri
- CIBER-EHD, Department of Pharmacology, IBS.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Alba Rodriguez-Nogales
- CIBER-EHD, Department of Pharmacology, IBS.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Teresa Vezza
- CIBER-EHD, Department of Pharmacology, IBS.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Jose Garrido-Mesa
- CIBER-EHD, Department of Pharmacology, IBS.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Natividad Garrido-Mesa
- CIBER-EHD, Department of Pharmacology, IBS.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - M Pilar Utrilla
- CIBER-EHD, Department of Pharmacology, IBS.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | | | | | | | - Maria Del Mar Contreras
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain; Research and Development Centre for Functional Food (CIDAF), Health-Science Technological Park, Avenida del Conocimiento 37, 18016 Granada, Spain
| | - Antonio Segura-Carretero
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avenida Fuentenueva s/n, 18071 Granada, Spain; Research and Development Centre for Functional Food (CIDAF), Health-Science Technological Park, Avenida del Conocimiento 37, 18016 Granada, Spain
| | - José Pérez-Palacio
- Fundación Centro de Excelencia en Investigación de Medicamentos Innovadores de Andalucía (MEDINA), Granada, Spain
| | - Caridad Diaz
- Fundación Centro de Excelencia en Investigación de Medicamentos Innovadores de Andalucía (MEDINA), Granada, Spain
| | - Noemí Vergara
- Fundación Centro de Excelencia en Investigación de Medicamentos Innovadores de Andalucía (MEDINA), Granada, Spain
| | - Francisca Vicente
- Fundación Centro de Excelencia en Investigación de Medicamentos Innovadores de Andalucía (MEDINA), Granada, Spain
| | - M Elena Rodriguez-Cabezas
- CIBER-EHD, Department of Pharmacology, IBS.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Julio Galvez
- CIBER-EHD, Department of Pharmacology, IBS.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain.
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Avgousti DC, Herrmann C, Kulej K, Pancholi NJ, Sekulic N, Petrescu J, Molden RC, Blumenthal D, Paris AJ, Reyes ED, Ostapchuk P, Hearing P, Seeholzer SH, Worthen GS, Black BE, Garcia BA, Weitzman MD. A core viral protein binds host nucleosomes to sequester immune danger signals. Nature 2016; 535:173-7. [PMID: 27362237 PMCID: PMC4950998 DOI: 10.1038/nature18317] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 05/11/2016] [Indexed: 01/06/2023]
Abstract
Viral proteins mimic host protein structure and function to redirect cellular processes and subvert innate defenses. Small basic proteins compact and regulate both viral and cellular DNA genomes. Nucleosomes are the repeating units of cellular chromatin and play an important part in innate immune responses. Viral-encoded core basic proteins compact viral genomes, but their impact on host chromatin structure and function remains unexplored. Adenoviruses encode a highly basic protein called protein VII that resembles cellular histones. Although protein VII binds viral DNA and is incorporated with viral genomes into virus particles, it is unknown whether protein VII affects cellular chromatin. Here we show that protein VII alters cellular chromatin, leading us to hypothesize that this has an impact on antiviral responses during adenovirus infection in human cells. We find that protein VII forms complexes with nucleosomes and limits DNA accessibility. We identified post-translational modifications on protein VII that are responsible for chromatin localization. Furthermore, proteomic analysis demonstrated that protein VII is sufficient to alter the protein composition of host chromatin. We found that protein VII is necessary and sufficient for retention in the chromatin of members of the high-mobility-group protein B family (HMGB1, HMGB2 and HMGB3). HMGB1 is actively released in response to inflammatory stimuli and functions as a danger signal to activate immune responses. We showed that protein VII can directly bind HMGB1 in vitro and further demonstrated that protein VII expression in mouse lungs is sufficient to decrease inflammation-induced HMGB1 content and neutrophil recruitment in the bronchoalveolar lavage fluid. Together, our in vitro and in vivo results show that protein VII sequesters HMGB1 and can prevent its release. This study uncovers a viral strategy in which nucleosome binding is exploited to control extracellular immune signaling.
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Affiliation(s)
- Daphne C. Avgousti
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia, Philadelphia, PA USA
| | - Christin Herrmann
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia, Philadelphia, PA USA
- Cell and Molecular Biology Graduate Group, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
| | - Katarzyna Kulej
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia, Philadelphia, PA USA
| | - Neha J. Pancholi
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia, Philadelphia, PA USA
- Cell and Molecular Biology Graduate Group, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
| | - Nikolina Sekulic
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
- Epigenetics Program, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
- Currently: Biotechnology Centre of Oslo and Department of Chemistry, University of Oslo, Oslo, Norway
| | - Joana Petrescu
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia, Philadelphia, PA USA
- Villanova University, Villanova, PA USA
| | - Rosalynn C. Molden
- Epigenetics Program, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
| | - Daniel Blumenthal
- Division of Cell Pathology, Children's Hospital of Philadelphia, Philadelphia, PA USA
| | - Andrew J. Paris
- Division of Pulmonary, Allergy, and Critical Care Medicine, Hospital of the University of Pennsylvania, and the Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Emigdio D. Reyes
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia, Philadelphia, PA USA
| | - Philomena Ostapchuk
- Department of Molecular Genetics and Microbiology, School of Medicine, Stony Brook University, Stony Brook, New York USA
| | - Patrick Hearing
- Department of Molecular Genetics and Microbiology, School of Medicine, Stony Brook University, Stony Brook, New York USA
| | - Steven H. Seeholzer
- Protein and Proteomics Core, Children's Hospital of Philadelphia, Philadelphia, PA USA
| | - G. Scott Worthen
- Division of Neonatology, Children’s Hospital of Philadelphia, Philadelphia, and Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Ben E. Black
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
- Epigenetics Program, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
| | - Benjamin A. Garcia
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
- Epigenetics Program, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
| | - Matthew D. Weitzman
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA USA
- Division of Cancer Pathobiology, Children's Hospital of Philadelphia, Philadelphia, PA USA
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Adachi K, Suzuki M, Sugimoto T, Yorozu K, Takai H, Uetsuka K, Nakayama H, Doi K. Effects of Granulocyte Colony-Stimulating Factor (G-CSF) on Bleomycin-Induced Lung Injury of Varying Severity. Toxicol Pathol 2016; 31:665-73. [PMID: 14585735 DOI: 10.1080/01926230390244924] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
We evaluated the effects of granulocyte colony-stimulating factor (G-CSF) on bleomycin (BLM)-induced lung injury that developed diffuse alveolar damage and subsequent pulmonary fibrosis (PF) of varying severity. G-CSF (100 μg/kg/day) was administered subcutaneously to BLM (0.2, 20, 2,000 μg)-treated or -untreated rats for 3 or 14 days. In the BLM 0.2 μg group, slight alveolar mononuclear cell infiltration was observed, although PF was not noted. In the BLM 20- μg and 2,000- μg groups, diffuse alveolar damage along with neutrophil infiltration and subsequent PF were observed. In the saline + G-CSF group and BLM 0.2 μg + G-CSF group, a marked increase in the number of alkaline phosphatase (ALP)-positive neutrophils was noted in the alveolar capillaries, although there was neither neutrophil infiltration in alveoli nor exacerbation of lung injury. In the BLM 20 μg + G-CSF and BLM 2,000 μg + G-CSF groups, an exacerbation of lung injury along with an increase in the number of ALP-positive neutrophils in the alveoli was observed. These results indicate that the administration of G-CSF to rats with slight lung injury bearing no PF does not exacerbate the lung injury. The exacerbating effects of G-CSF seem to be associated not only with the marked infiltration of activated neutrophils but also with the severity of underlying lung injury.
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Affiliation(s)
- Kenji Adachi
- Department of Safety Assessment, Fuji Gotemba Research Laboratory, Chugai Pharmaceutical Co, Ltd, Shizuoka, Japan.
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113
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Correa LB, Pádua TA, Seito LN, Costa TEMM, Silva MA, Candéa ALP, Rosas EC, Henriques MG. Anti-inflammatory Effect of Methyl Gallate on Experimental Arthritis: Inhibition of Neutrophil Recruitment, Production of Inflammatory Mediators, and Activation of Macrophages. J Nat Prod 2016; 79:1554-1566. [PMID: 27227459 DOI: 10.1021/acs.jnatprod.5b01115] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Methyl gallate (MG) is a prevalent phenolic acid in the plant kingdom, and its presence in herbal medicines might be related to its remarkable biological effects, such as its antioxidant, antitumor, and antimicrobial activities. Although some indirect evidence suggests anti-inflammatory activity for MG, there are no studies demonstrating this effect in animal models. Herein, we demonstrated that MG (0.7-70 mg/kg) inhibited zymosan-induced experimental arthritis in a dose-dependent manner. The oral administration of MG (7 mg/kg) attenuates arthritis induced by zymosan, affecting edema formation, leukocyte migration, and the production of inflammatory mediators (IL-1β, IL-6, TNF-α, CXCL-1, LTB4, and PGE2). Pretreatment with MG inhibited in vitro neutrophil chemotaxis elicited by CXCL-1, as well as the adhesion of these cells to TNF-α-primed endothelial cells. MG also impaired zymosan-stimulated macrophages by inhibiting IL-6 and NO production, COX-2 and iNOS expression, and intracellular calcium mobilization. Thus, MG is likely to present an anti-inflammatory effect by targeting multiple cellular events such as the production of various inflammatory mediators, as well as leukocyte activation and migration.
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Affiliation(s)
- Luana Barbosa Correa
- Laboratory of Applied Pharmacology, Farmanguinhos, and ‡National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz) , Rio de Janeiro, RJ, Brazil
| | - Tatiana Almeida Pádua
- Laboratory of Applied Pharmacology, Farmanguinhos, and ‡National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz) , Rio de Janeiro, RJ, Brazil
| | - Leonardo Noboru Seito
- Laboratory of Applied Pharmacology, Farmanguinhos, and ‡National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz) , Rio de Janeiro, RJ, Brazil
| | - Thadeu Estevam Moreira Maramaldo Costa
- Laboratory of Applied Pharmacology, Farmanguinhos, and ‡National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz) , Rio de Janeiro, RJ, Brazil
| | - Magaiver Andrade Silva
- Laboratory of Applied Pharmacology, Farmanguinhos, and ‡National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz) , Rio de Janeiro, RJ, Brazil
| | - André Luis Peixoto Candéa
- Laboratory of Applied Pharmacology, Farmanguinhos, and ‡National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz) , Rio de Janeiro, RJ, Brazil
| | - Elaine Cruz Rosas
- Laboratory of Applied Pharmacology, Farmanguinhos, and ‡National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz) , Rio de Janeiro, RJ, Brazil
| | - Maria G Henriques
- Laboratory of Applied Pharmacology, Farmanguinhos, and ‡National Institute for Science and Technology on Innovation on Neglected Diseases (INCT/IDN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz) , Rio de Janeiro, RJ, Brazil
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114
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Inoue K, Takano H, Oda T, Yanagisawa R, Tamura H, Ohno N, Adachi Y, Ishibashi K, Yoshikawa T. Candida Soluble Cell Wall β-D-Glucan Induces Lung Inflammation in Mice. Int J Immunopathol Pharmacol 2016; 20:499-508. [PMID: 17880763 DOI: 10.1177/039463200702000308] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Bioactivity of cell wall component(s) of fungi has not been fully elucidated, especially in vivo. We isolated Candida soluble beta-D-glucan (CSBG) from Candida albicans (C. albicans). We investigated the effects of airway exposure to CSBG on the immune systems in the airways in mice. CSBG exposure induced neutrophilic and eosinophilic inflammation in the lung, which was concomitant with the increased local expression of proinflammatory cytokines including tumor necrosis factor - α, interleukin (IL)-1 β, IL-6, macrophage inflammatory protein -1 α, macrophage chemoattractant protein -1, RANTES (regulated on activation and normal T cells expressed and secreted), and eotaxin. The lung inflammation with enhanced expression of proinflammatory proteins caused by CSBG was directly related to its structure, since structurally degraded products of CSBG by formic acid induced negligible responses in the lung. CSBG enhanced nuclear localization of phosphorylated signal transducer and activator of transcription (STAT)-6 in the lung. These results suggest that airway exposure to CSBG induces lung inflammation, at least partly, via the enhanced expression of proinflammatory cytokines and the activation of STAT-6 pathway, and can be a proper murine model for fungal lung inflammation.
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Affiliation(s)
- K Inoue
- Environmental Health Sciences Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
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115
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Xiao W, Zhou G, Xu C, Xu J, Huang F, Lu X, Li X, Wu X. [Cigarette smoking in different manners induces acute lung injury in rats]. Zhejiang Da Xue Xue Bao Yi Xue Ban 2016; 45:522-529. [PMID: 28087913 PMCID: PMC10400824 DOI: 10.3785/j.issn.1008-9292.2016.09.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To investigate the effects of cigarette smoking in different manners on acute lung injury in rats. Methods: The commercially available cigarettes with tar of 1,5, 11 mg were smoked in Canada depth smoking (health canada method, HCM) manner, and those with tar of 11 mg were also smoked in international standard (ISO) smoking manner. Rats were fixed and exposed to mainstream in a manner of nose-mouth exposure. After 28 days, the bronchoalveolar lavage fluids from left lung were collected for counting and classification of inflammatory cells and determination of pro-inflammatory cytokines IL-1β and TNF-α. The right lungs were subjected to histological examination and determination of myeloperoxidase (MPO) and superoxide dismutase (SOD) activities and glutathione, reactive oxygen species (ROS) and malondialdehyde (MDA) levels. Results: In both HCM and ISO manners, the degree of lung injury was closely related to the tar content of cigarettes, and significant decrease in the body weight of rats was observed after smoking for one week. In a HCM manner, smoking with cigarette of 11 mg tar resulted in robust infiltration of macrophages, lymphocytes and neutrophils into lungs, significant increase in IL-1β and TNF-α levels and MPO activities, and significant decrease in GSH levels and SOD activities and increase in ROS and MDA levels (all P<0.05). Smoking with cigarette of 5 mg tar led to moderate increase in IL-1β and TNF-α levels, and MPO activities (all P<0.05), and moderate decrease in GSH levels and SOD activities and increase of ROS and MDA levels (all P<0.05). However, smoking with cigarette of 1 mg tar affected neither inflammatory cell infiltration nor IL-1β and TNF-α levels. Conclusion: Cigarette smoking in nose-mouth exposure manner can induce acute lung injury in rats; and the degree of lung injury is closely related to the content of tar and other hazards in cigarettes.
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Affiliation(s)
- Weiqiang Xiao
- Technology Center, China Tobacco Zhejiang Industrial Co. Ltd, Hangzhou 310024, China
| | - Guojun Zhou
- Technology Center, China Tobacco Zhejiang Industrial Co. Ltd, Hangzhou 310024, China.
| | - Chengyun Xu
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jian Xu
- Technology Center, China Tobacco Zhejiang Industrial Co. Ltd, Hangzhou 310024, China
| | - Fangfang Huang
- Technology Center, China Tobacco Zhejiang Industrial Co. Ltd, Hangzhou 310024, China
| | - Xinbo Lu
- Technology Center, China Tobacco Zhejiang Industrial Co. Ltd, Hangzhou 310024, China
| | - Xia Li
- Technology Center, China Tobacco Zhejiang Industrial Co. Ltd, Hangzhou 310024, China
| | - Ximei Wu
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou 310058, China.
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116
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Liverani E, Rico MC, Tsygankov AY, Kilpatrick LE, Kunapuli SP. P2Y12 Receptor Modulates Sepsis-Induced Inflammation. Arterioscler Thromb Vasc Biol 2016; 36:961-71. [PMID: 27055904 PMCID: PMC4850113 DOI: 10.1161/atvbaha.116.307401] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 03/21/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Platelets modulate hemostasis and immune responses via interactions with immune cells through secretion of immunemodulators and cell-cell interactions. The P2Y12 receptor mediates ADP-induced aggregation and secretion in platelets. APPROACH AND RESULTS Using a mouse model of intra-abdominal sepsis and acute lung injury, we investigated the role of the P2Y12 receptor in neutrophil migration and lung inflammation in P2Y12 null mice and in mice pretreated with the P2Y12 antagonist clopidogrel. Our data show a decrease in circulating white blood cells and a decrease in platelet activation and platelet-leukocyte interactions in treated mice compared with untreated mice. Additionally, lung injury and platelet sequestration were diminished in clopidogrel-treated mice compared with their untreated septic littermates. Similar results were observed in P2Y12 null mice: platelet activation and platelet-leukocyte aggregates were decreased in septic P2Y12 null mice compared with wild-type mice. P2Y12 null mice were refractory to lung injury compared with wild-type mice. Finally, to evaluate P2Y12-independent effects of clopidogrel, we pretreated P2Y12 null mice. Interestingly, the number of circulating neutrophils was reduced in treated septic P2Y12 null mice, suggesting neutrophils as a target for clopidogrel pleiotropic effects. No difference was observed in P2Y1 null mice during sepsis, indicating that the P2Y12 receptor is responsible for the effects. CONCLUSIONS P2Y12 null mice are refractory to sepsis-induced lung injury, suggesting a key role for activated platelets and the P2Y12 receptor during sepsis.
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Affiliation(s)
- Elisabetta Liverani
- From the Sol Sherry Thrombosis Research Center (E.L., M.C.R., A.Y.T., L.E.K., S.P.K.), Department of Physiology (L.E.K., S.P.K.), Department of Microbiology and Immunology (A.Y.T.), and Center for Inflammation, Translational and Clinical Lung Research (E.L., L.E.K.), Temple University School of Medicine, Philadelphia, PA.
| | - Mario C Rico
- From the Sol Sherry Thrombosis Research Center (E.L., M.C.R., A.Y.T., L.E.K., S.P.K.), Department of Physiology (L.E.K., S.P.K.), Department of Microbiology and Immunology (A.Y.T.), and Center for Inflammation, Translational and Clinical Lung Research (E.L., L.E.K.), Temple University School of Medicine, Philadelphia, PA
| | - Alexander Y Tsygankov
- From the Sol Sherry Thrombosis Research Center (E.L., M.C.R., A.Y.T., L.E.K., S.P.K.), Department of Physiology (L.E.K., S.P.K.), Department of Microbiology and Immunology (A.Y.T.), and Center for Inflammation, Translational and Clinical Lung Research (E.L., L.E.K.), Temple University School of Medicine, Philadelphia, PA
| | - Laurie E Kilpatrick
- From the Sol Sherry Thrombosis Research Center (E.L., M.C.R., A.Y.T., L.E.K., S.P.K.), Department of Physiology (L.E.K., S.P.K.), Department of Microbiology and Immunology (A.Y.T.), and Center for Inflammation, Translational and Clinical Lung Research (E.L., L.E.K.), Temple University School of Medicine, Philadelphia, PA
| | - Satya P Kunapuli
- From the Sol Sherry Thrombosis Research Center (E.L., M.C.R., A.Y.T., L.E.K., S.P.K.), Department of Physiology (L.E.K., S.P.K.), Department of Microbiology and Immunology (A.Y.T.), and Center for Inflammation, Translational and Clinical Lung Research (E.L., L.E.K.), Temple University School of Medicine, Philadelphia, PA
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Kong G, Huang X, Wang L, Li Y, Sun T, Han S, Zhu W, Ma M, Xu H, Li J, Zhang X, Liu X, Wang X. Astilbin alleviates LPS-induced ARDS by suppressing MAPK signaling pathway and protecting pulmonary endothelial glycocalyx. Int Immunopharmacol 2016; 36:51-58. [PMID: 27111514 DOI: 10.1016/j.intimp.2016.03.039] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 03/25/2016] [Accepted: 03/29/2016] [Indexed: 01/19/2023]
Abstract
Acute respiratory distress syndrome (ARDS) is a devastating disorder that is characterized by increased vascular endothelial permeability and inflammation. Unfortunately, no effective treatment beyond supportive care is available for ARDS. Astilbin, a flavonoid compound isolated from Rhizoma Smilacis Glabrae, has been used for anti-hepatic, anti-arthritic, and anti-renal injury treatments. This study examined the effects of Astilbin on pulmonary inflammatory activation and endothelial cell barrier dysfunction caused by Gram-negative bacterial endotoxin lipopolysaccharide (LPS). Endothelial cells from human umbilical veins or male Kunming mice were pretreated with Astilbin 24h before LPS stimulation. Results showed that Astilbin significantly attenuated the pulmonary histopathological changes and neutrophil infiltration 6h after the LPS challenge. Astilbin suppressed the activities of myeloperoxidase and malondialdehyde, as well as the expression of tumor necrosis factor-α and interleukin-6 in vivo and in vitro. As indices of pulmonary edema, lung wet-to-dry weight ratios, were markedly decreased by Astilbin pretreatment. Western blot analysis also showed that Astilbin inhibited LPS-induced activation of mitogen-activated protein kinase (MAPK) pathways in lung tissues. Furthermore, Astilbin significantly inhibited the activity of heparanase and reduced the production of heparan sulfate in the blood serum as determined by ELISA. These findings indicated that Astilbin can alleviate LPS-induced ARDS, which potentially contributed to the suppression of MAPK pathway activation and the degradation of endothelial glycocalyx.
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Affiliation(s)
- Guiqing Kong
- Department of Intensive Care Unit Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China; Department of Biotechnology, Binzhou Medical University, Yantai 264003, Shandong Province, China
| | - Xiao Huang
- Department of Intensive Care Unit Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China
| | - Lipeng Wang
- Department of Intensive Care Unit Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China
| | - Yan Li
- Department of Respiratory Medicine, Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China
| | - Ting Sun
- Department of Respiratory Medicine, Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China
| | - Shasha Han
- Department of Respiratory Medicine, Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China
| | - Weiwei Zhu
- Department of Intensive Care Unit Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China
| | - Mingming Ma
- Department of Intensive Care Unit, Hulunbeier People's Hospital, Hulunbeier 021000, Inner Mongolia Autonomous Region, China
| | - Haixiao Xu
- Department of Intensive Care Unit Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China
| | - Jiankui Li
- Department of Intensive Care Unit Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China
| | - Xiaohua Zhang
- Department of Biotechnology, Binzhou Medical University, Yantai 264003, Shandong Province, China.
| | - Xiangyong Liu
- Department of Cell Biology, Binzhou Medical University, Yantai 264003, Shandong Province, China.
| | - Xiaozhi Wang
- Department of Intensive Care Unit Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong Province, China.
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Snyder-Talkington BN, Dong C, Porter DW, Ducatman B, Wolfarth MG, Andrew M, Battelli L, Raese R, Castranova V, Guo NL, Qian Y. Multiwalled carbon nanotube-induced pulmonary inflammatory and fibrotic responses and genomic changes following aspiration exposure in mice: A 1-year postexposure study. J Toxicol Environ Health A 2016; 79:352-66. [PMID: 27092743 PMCID: PMC4899319 DOI: 10.1080/15287394.2016.1159635] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 02/25/2016] [Indexed: 05/25/2023]
Abstract
Pulmonary exposure to multiwalled carbon nanotubes (MWCNT) induces an inflammatory and rapid fibrotic response, although the long-term signaling mechanisms are unknown. The aim of this study was to examine the effects of 1, 10, 40, or 80 μg MWCNT administered by pharyngeal aspiration on bronchoalveolar lavage (BAL) fluid for polymorphonuclear cell (PMN) infiltration, lactate dehydrogenase (LDH) activity, and lung histopathology for inflammatory and fibrotic responses in mouse lungs 1 mo, 6 mo, and 1 yr postexposure. Further, a 120-μg crocidolite asbestos group was incorporated as a positive control for comparative purposes. Results showed that MWCNT increased BAL fluid LDH activity and PMN infiltration in a dose-dependent manner at all three postexposure times. Asbestos exposure elevated LDH activity at all 3 postexposure times and PMN infiltration at 1 mo and 6 mo postexposure. Pathological changes in the lung, the presence of MWCNT or asbestos, and fibrosis were noted at 40 and 80 μg MWCNT and in asbestos-exposed mice at 1 yr postexposure. To determine potential signaling pathways involved with MWCNT-associated pathological changes in comparison to asbestos, up- and down-regulated gene expression was determined in lung tissue at 1 yr postexposure. Exposure to MWCNT tended to favor those pathways involved in immune responses, specifically T-cell responses, whereas exposure to asbestos tended to favor pathways involved in oxygen species production, electron transport, and cancer. Data indicate that MWCNT are biopersistent in the lung and induce inflammatory and fibrotic pathological alterations similar to those of crocidolite asbestos, but may reach these endpoints by different mechanisms.
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Affiliation(s)
- Brandi N. Snyder-Talkington
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
| | - Chunlin Dong
- Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 26506-9300, USA
| | - Dale W. Porter
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
| | - Barbara Ducatman
- Department of Pathology, West Virginia University, Morgantown, WV 26506, USA
| | - Michael G. Wolfarth
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
| | - Michael Andrew
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
| | - Lori Battelli
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
| | - Rebecca Raese
- Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 26506-9300, USA
| | - Vincent Castranova
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, WV 26506, USA
| | - Nancy L. Guo
- Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 26506-9300, USA
| | - Yong Qian
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
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Elliott DM, Nagarkatti M, Nagarkatti PS. 3,39-Diindolylmethane Ameliorates Staphylococcal Enterotoxin B–Induced Acute Lung Injury through Alterations in the Expression of MicroRNA that Target Apoptosis and Cell-Cycle Arrest in Activated T Cells. J Pharmacol Exp Ther 2016; 357:177-87. [PMID: 26818958 PMCID: PMC4809322 DOI: 10.1124/jpet.115.226563] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 01/26/2016] [Indexed: 12/20/2022] Open
Abstract
3,39-Diindolylmethane (DIM), a natural indole found in cruciferous vegetables, has significant anti-cancer and anti-inflammatory properties. In this current study, we investigated the effects of DIM on acute lung injury (ALI) induced by exposure to staphylococcal enterotoxin B (SEB). We found that pretreatment of mice with DIM led to attenuation of SEB-induced inflammation in the lungs, vascular leak, and IFN-g secretion. Additionally, DIM could induce cell-cycle arrest and cell death in SEB-activated T cells in a concentration-dependent manner. Interestingly, microRNA (miRNA) microarray analysis uncovered an altered miRNA profile in lung-infiltrating mononuclear cells after DIM treatment of SEB-exposed mice. Moreover, computational analysis of miRNA gene targets and regulation networks indicated that DIM alters miRNA in the cell death and cell-cycle progression pathways. Specifically, DIM treatment significantly downregulated several miRNA and a correlative increase associated gene targets. Furthermore, overexpression and inhibition studies demonstrated that DIM-induced cell death, at least in part, used miR-222. Collectively, these studies demonstrate for the first time that DIM treatment attenuates SEB-induced ALI and may do so through the induction of microRNAs that promote apoptosis and cell-cycle arrest in SEB-activated T cells.
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Solmaz A, Bahadır E, Gülçiçek OB, Yiğitbaş H, Çelik A, Karagöz A, Özsavcı D, Şirvancı S, Yeğen BÇ. Nesfatin-1 improves oxidative skin injury in normoglycemic or hyperglycemic rats. Peptides 2016; 78:1-10. [PMID: 26829459 DOI: 10.1016/j.peptides.2015.12.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/09/2015] [Accepted: 12/23/2015] [Indexed: 12/31/2022]
Abstract
Hyperglycemia is one of the major causes of suppressed angiogenesis and impaired wound healing leading to chronic wounds. Nesfatin-1 a novel peptide was reported to have antioxidant and anti-apoptotic properties. This study is aimed to investigate the potential healing-promoting effects of nesfatin-1 in non-diabetic or diabetic rats with surgical wounds. In male Sprague-Dawley rats, hyperglycemia was induced by intraperitoneal (ip) injection of streptozotocin (55 mg/kg). Under anesthesia, dorsum skin tissues of normoglycemic (n=16) and hyperglycemic rats were excised (2 × 2 cm, full-thickness), while control rats (n=16) had neither hyperglycemia nor wounds. Half of the rats in each group were treated ip with saline, while the others were treated with nesfatin-1 (2 μg/kg/day) for 3 days until they were decapitated. Plasma interleukin-1-beta (IL-1β), transforming growth factor-beta (TGF-β-1), IL-6 levels, and dermal tissue malondialdehyde (MDA), glutathione (GSH) levels, myeloperoxidase (MPO) and caspase-3 activity were measured. For histological examination, paraffin sections were stained with hematoxylin-eosin or Masson's trichrome and immunohistochemistry for vascular endothelial growth factor (VEGF) was applied. ANOVA and Student's t-tests were used for statistical analysis. Compared to control rats, skin MPO activity, MDA and caspase-3 levels were increased similarly in saline-treated normo- and hyperglycemic rats. Nesfatin-1 depressed MDA, caspase-3, MPO activity and IL-1β with concomitant elevations in dermal GSH and plasma TGF-β-1 levels. Histopathological examination revealed regeneration of epidermis, regular arrangement of collagen fibers in the dermis and a decrease in VEGF immunoreactivity in the epidermal keratinocytes of nesfatin-1-treated groups. Nesfatin-1 improved surgical wound healing in both normo- and hyperglycemic rats via the suppression of neutrophil recruitment, apoptosis and VEGF activation.
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Affiliation(s)
- Ali Solmaz
- General Surgery Clinic, Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Elif Bahadır
- Department of Physiology, Marmara University Faculty of Medicine, Istanbul, Turkey
| | - Osman B Gülçiçek
- General Surgery Clinic, Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Hakan Yiğitbaş
- General Surgery Clinic, Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Atilla Çelik
- General Surgery Clinic, Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Ayça Karagöz
- Department of Histology & Embryology, Marmara University Faculty of Medicine, Istanbul, Turkey
| | - Derya Özsavcı
- Department of Biochemistry, Marmara University Faculty of Pharmacy, Istanbul, Turkey
| | - Serap Şirvancı
- Department of Histology & Embryology, Marmara University Faculty of Medicine, Istanbul, Turkey
| | - Berrak Ç Yeğen
- Department of Physiology, Marmara University Faculty of Medicine, Istanbul, Turkey.
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Baum P, Kosacka J, Estrela-Lopis I, Woidt K, Serke H, Paeschke S, Stockinger M, Klöting N, Blüher M, Dorn M, Classen J, Thiery J, Bechmann I, Toyka KV, Nowicki M. The role of nerve inflammation and exogenous iron load in experimental peripheral diabetic neuropathy (PDN). Metabolism 2016; 65:391-405. [PMID: 26975531 DOI: 10.1016/j.metabol.2015.11.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 10/26/2015] [Accepted: 11/04/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Iron is an essential but potentially toxic metal in mammals. Here we investigated a pathogenic role of exogenous iron in peripheral diabetic neuropathy (PDN) in an animal model for type 1 diabetes. METHODS Diabetes was induced by a single injection of streptozotocin (STZ) in 4-month-old Sprague-Dawley rats. STZ-diabetic rats and non-diabetic rats were fed with high, standard, or low iron diet. After three months of feeding, animals were tested. RESULTS STZ-rats on standard iron diet showed overt diabetes, slowed motor nerve conduction, marked degeneration of distal intraepidermal nerve fibers, mild intraneural infiltration with macrophages and T-cells in the sciatic nerve, and increased iron levels in serum and dorsal root ganglion (DRG) neurons. While motor fibers were afflicted in all STZ-groups, only a low iron-diet led also to reduced sensory conduction velocities in the sciatic nerve. In addition, only STZ-rats on a low iron diet showed damaged mitochondria in numerous DRG neurons, a more profound intraepidermal nerve fiber degeneration indicating small fiber neuropathy, and even more inflammatory cells in sciatic nerves than seen in any other experimental group. CONCLUSIONS These results indicate that dietary iron-deficiency rather than iron overload, and mild inflammation may both promote neuropathy in STZ-induced experimental PDN.
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Affiliation(s)
- Petra Baum
- Department of Neurology, University Hospital Leipzig, Liebigstr. 20, D-04103 Leipzig, Germany
| | - Joanna Kosacka
- Department of Medicine, University of Leipzig, Liebigstr. 21, D-04103 Leipzig, Germany
| | - Irina Estrela-Lopis
- Institute of Medical Physics and Biophysics, University of Leipzig, Härtelstr. 16-18, D-04107 Leipzig, Germany
| | - Katrin Woidt
- Institute of Anatomy, University of Leipzig, Liebigstr. 13, D-04103 Leipzig, Germany
| | - Heike Serke
- Institute of Anatomy, University of Leipzig, Liebigstr. 13, D-04103 Leipzig, Germany
| | - Sabine Paeschke
- Department of Medicine, University of Leipzig, Liebigstr. 21, D-04103 Leipzig, Germany
| | - Maximilian Stockinger
- Department of Neurology, University Hospital Leipzig, Liebigstr. 20, D-04103 Leipzig, Germany
| | - Nora Klöting
- Department of Medicine, University of Leipzig, Liebigstr. 21, D-04103 Leipzig, Germany; Integrated Research and Treatment Center (IFB) Adiposity Disease, Liebigstr. 21, D-04103 Leipzig, Germany
| | - Matthias Blüher
- Department of Medicine, University of Leipzig, Liebigstr. 21, D-04103 Leipzig, Germany
| | - Marco Dorn
- Institute of Medical Physics and Biophysics, University of Leipzig, Härtelstr. 16-18, D-04107 Leipzig, Germany
| | - Joseph Classen
- Department of Neurology, University Hospital Leipzig, Liebigstr. 20, D-04103 Leipzig, Germany
| | - Joachim Thiery
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics (ILM), University of Leipzig, Liebigstr. 27, D-04103 Leipzig, Germany
| | - Ingo Bechmann
- Institute of Anatomy, University of Leipzig, Liebigstr. 13, D-04103 Leipzig, Germany
| | - Klaus V Toyka
- Department of Neurology, University of Würzburg, Josef-Schneider-Str. 11, D-97080 Würzburg, Germany
| | - Marcin Nowicki
- Institute of Anatomy, University of Leipzig, Liebigstr. 13, D-04103 Leipzig, Germany.
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García-Hernández V, Sarmiento N, Sánchez-Bernal C, Coveñas R, Hernández-Hernández A, Calvo JJ, Sánchez-Yagüe J. Changes in the expression of LIMP-2 during cerulein-induced pancreatitis in rats: Effect of inhibition of leukocyte infiltration, cAMP and MAPKs early on in its development. Int J Biochem Cell Biol 2016; 72:109-117. [PMID: 26794464 DOI: 10.1016/j.biocel.2016.01.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 12/28/2015] [Accepted: 01/15/2016] [Indexed: 12/26/2022]
Abstract
Lysosomal integral membrane protein-2 (LIMP-2) is an important protein in lysosomal biogenesis and function and also plays a role in the tissue inflammatory response. It is known that lysosomes play a central role in acute pancreatitis, with inflammatory cell infiltration triggering the disease early on. In this study we report increases in pancreatic LIMP-2 protein and mRNA levels as early events that occur during the development of cerulein (Cer)-induced acute pancreatitis (AP) in rats. GdCl3, a macrophage inhibitor, but not FK506, a T lymphocyte inhibitor, was able to reverse the increase in LIMP-2 expression after Cer treatment, although such reversion was abolished if the animals were depleted of neutrophils due to a vinblastine sulfate pre-treatment. Immunostaining revealed that the cellular source of LIMP-2 was mainly acinar cells. Additionally, pre-treatments with the MAPKs inhibitors SP600125 and PD98059, inhibitors of JNK and ERK½ activation, respectively, but not of rolipram, a type IV phosphodiesterase inhibitor, suppressed the increase in the expression of LIMP-2 after Cer administration. Together, these results indicate that neutrophils are able to drive a macrophage activation that would regulate the increase in LIMP-2 expression during the early phase of Cer-induced AP, with the stress kinases JNK and ERK½ also playing a coordinated role in the increase of LIMP-2 expression due to Cer.
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Affiliation(s)
- Violeta García-Hernández
- Department of Biochemistry and Molecular Biology, University of Salamanca, IBSAL (Instituto de Investigación Biomédica de Salamanca), Spain
| | - Nancy Sarmiento
- Department of Biochemistry and Molecular Biology, University of Salamanca, IBSAL (Instituto de Investigación Biomédica de Salamanca), Spain
| | - Carmen Sánchez-Bernal
- Department of Biochemistry and Molecular Biology, University of Salamanca, IBSAL (Instituto de Investigación Biomédica de Salamanca), Spain
| | - Rafael Coveñas
- Institute of Neurosciences of Castilla y León (INCYL), University of Salamanca, Spain
| | - Angel Hernández-Hernández
- Department of Biochemistry and Molecular Biology, University of Salamanca, IBSAL (Instituto de Investigación Biomédica de Salamanca), Spain
| | - José J Calvo
- Department of Physiology and Pharmacology, University of Salamanca, IBSAL (Instituto de Investigación Biomédica de Salamanca), Spain
| | - Jesús Sánchez-Yagüe
- Department of Biochemistry and Molecular Biology, University of Salamanca, IBSAL (Instituto de Investigación Biomédica de Salamanca), Spain.
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Deng J, Tian L, Ma X, Fan X, Hou F, Liang H, Luo Y. [The effects of agmatine on acute peritoneal inflammatory injury and neutrophil infiltration induced by zymosan in mice]. Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 2016; 28:225-229. [PMID: 29916686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To investigate the protective effect of agmatine (AGM) against peritoneal inflammatory response and neutrophil (PMN) infiltration induced by zymosan (ZYM) in mice. METHODS Thirty-six adult male C57BL/6 mice were randomly divided into sham group, model group, and AGM treatment group. Peritonitis model was reproduced by intra-peritoneal injection of 1 mg/mL ZYM (0.5 mL), while equivalent phosphate buffer saline (PBS) was given to sham group. 200 mg/kg AGM was injected into peritoneal cavity after ZYM challenge in AGM treatment group. Six mice in each group were sacrificed at 2 hours and 6 hours, respectively, after reproduction of the model. Blood sample and peritoneal lavage fluid (PLF) were collected. The levels of keratinocyte-derived chemokine (KC), macrophage inflammatory protein 2 (MIP-2), tumor necrosis factor-α (TNF-α), interleukins-6 (IL-6) in serum and PLF were determined by enzyme linked immunosorbent assay (ELISA). The number of leukocytes and PMN in PLF were determined by hemocytometer and flow cytometry, respectively. RESULTS Compared with sham group, all serum and PLF levels of KC, MIP-2, TNF-α and IL-6 were greatly elevated at 2 hours after ZYM injection in model group, while AGM treatment could dramatically reduce the levels of the above-mentioned cytokines in serum and PLF as compared with those of the model group [serum KC (ng/L): 990.7±137.9 vs. 2 053.2±262.7, MIP-2 (ng/L): 642.2±124.4 vs. 1 369.7±146.5, TNF-α (ng/L): 608.6±38.1 vs. 1 044.7±101.0, IL-6 (ng/L): 1 058.2±129.1 vs. 1 443.3±190.1; PLF KC (ng/L): 7 462.3±839.6 vs. 12 723.5±1 515.7, MIP-2 (ng/L): 1 570.8±193.4 vs. 3 471.4±384.7, TNF-α (ng/L): 1 115.8±156.7 vs. 1 499.2±231.2, IL-6 (ng/L): 2 646.5±223.2 vs. 3 126.7±291.4; all P < 0.05]. The expressions of KC, MIP-2 and TNF-α at 6 hours were significantly lower than those at 2 hours in model group and AGM treatment group, but IL-6 levels were further increased. The levels of KC and MIP-2 in serum and PLF at 6 hours were decreased to the levels of sham group. At 6 hours after the reproduction of the model, the number of total inflammatory cells and PMN of PLF in the model group was significantly higher than those of the sham group. In contrast, AGM notably lowered the number of inflammatory cells and PMN in peritoneal fluid after ZYM attack [total inflammatory cells (×109/L): 14.7±1.1 vs. 2.0±0.4, 10.1±1.2 vs. 14.7±1.1; PMN (×109/L): 11.37±1.22 vs. 0.18±0.05, 7.69±0.57 vs. 11.37±1.22, all P < 0.05]. CONCLUSION AGM can effectively alleviate acute peritoneal inflammatory injury induced by ZYM, mainly through reducing the secretion of inflammatory mediators and chemokines, and inhibiting the infiltration of leukocytes and neutrophils.
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Mizokami SS, Hohmann MSN, Staurengo-Ferrari L, Carvalho TT, Zarpelon AC, Possebon MI, de Souza AR, Veneziani RCS, Arakawa NS, Casagrande R, Verri WA. Pimaradienoic Acid Inhibits Carrageenan-Induced Inflammatory Leukocyte Recruitment and Edema in Mice: Inhibition of Oxidative Stress, Nitric Oxide and Cytokine Production. PLoS One 2016; 11:e0149656. [PMID: 26895409 PMCID: PMC4760730 DOI: 10.1371/journal.pone.0149656] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/03/2016] [Indexed: 11/18/2022] Open
Abstract
Pimaradienoic acid (PA; ent-pimara-8(14),15-dien-19-oic acid) is a pimarane diterpene found in plants such as Vigueira arenaria Baker (Asteraceae) in the Brazilian savannas. Although there is evidence on the analgesic and in vitro inhibition of inflammatory signaling pathways, and paw edema by PA, its anti-inflammatory effect deserves further investigation. Thus, the objective of present study was to investigate the anti-inflammatory effect of PA in carrageenan-induced peritoneal and paw inflammation in mice. Firstly, we assessed the effect of PA in carrageenan-induced leukocyte recruitment in the peritoneal cavity and paw edema and myeloperoxidase activity. Next, we investigated the mechanisms involved in the anti-inflammatory effect of PA. The effect of PA on carrageenan-induced oxidative stress in the paw skin and peritoneal cavity was assessed. We also tested the effect of PA on nitric oxide, superoxide anion, and inflammatory cytokine production in the peritoneal cavity. PA inhibited carrageenan-induced recruitment of total leukocytes and neutrophils to the peritoneal cavity in a dose-dependent manner. PA also inhibited carrageenan-induced paw edema and myeloperoxidase activity in the paw skin. The anti-inflammatory mechanism of PA depended on maintaining paw skin antioxidant activity as observed by the levels of reduced glutathione, ability to scavenge the ABTS cation and reduce iron as well as by the inhibition of superoxide anion and nitric oxide production in the peritoneal cavity. Furthermore, PA inhibited carrageenan-induced peritoneal production of inflammatory cytokines TNF-α and IL-1β. PA presents prominent anti-inflammatory effect in carrageenan-induced inflammation by reducing oxidative stress, nitric oxide, and cytokine production. Therefore, it seems to be a promising anti-inflammatory molecule that merits further investigation.
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Affiliation(s)
- Sandra S. Mizokami
- Departamento de Ciências Patológicas - Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Miriam S. N. Hohmann
- Departamento de Ciências Patológicas - Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Larissa Staurengo-Ferrari
- Departamento de Ciências Patológicas - Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Thacyana T. Carvalho
- Departamento de Ciências Patológicas - Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Ana C. Zarpelon
- Departamento de Ciências Patológicas - Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Maria I. Possebon
- Departamento de Ciências Farmacêuticas - Centro de Ciências de Saúde, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Anderson R. de Souza
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, São Paulo, Brazil
| | - Rodrigo C. S. Veneziani
- Núcleo de Pesquisa em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, São Paulo, Brazil
| | - Nilton S. Arakawa
- Departamento de Ciências Farmacêuticas - Centro de Ciências de Saúde, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Rubia Casagrande
- Departamento de Ciências Farmacêuticas - Centro de Ciências de Saúde, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
- * E-mail: (RC); (WAV)
| | - Waldiceu A. Verri
- Departamento de Ciências Patológicas - Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
- * E-mail: (RC); (WAV)
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Huang YC, Horng CT, Chen ST, Lee SS, Yang ML, Lee CY, Kuo WH, Yeh CH, Kuan YH. Rutin improves endotoxin-induced acute lung injury via inhibition of iNOS and VCAM-1 expression. Environ Toxicol 2016; 31:185-191. [PMID: 25080890 DOI: 10.1002/tox.22033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 07/14/2014] [Accepted: 07/18/2014] [Indexed: 06/03/2023]
Abstract
Endotoxins exist anywhere including in water pools, dust, humidifier systems, and machining fluids. The major causal factor is endotoxins in many serious diseases, such as fever, sepsis, multi-organ failure, meningococcemia, and severe morbidities like neurologic disability, or hearing loss. Endotoxins are also called lipopolysaccharide (LPS) and are important pathogens of acute lung injury (ALI). Rutin has potential beneficial effects including anti-inflammation, antioxidation, anti-hyperlipidemia, and anti-platelet aggregation. Pre-treatment with rutin inhibited LPS-induced neutrophil infiltration in the lungs. LPS-induced expression of vascular cell adhesion molecule (VCAM)-1 and inducible nitric oxide synthase (iNOS) was suppressed by rutin, but there was no influence on expression of intercellular adhesion molecule-1 and cyclooxygenase-2. In addition, activation of the nuclear factor (NF)κB was reduced by rutin. Furthermore, we found that the inhibitory concentration of rutin on expression of VCAM-1 and iNOS was similar to NFκB activation. In conclusion, rutin is a potential protective agent for ALI via inhibition of neutrophil infiltration, expression of VCAM-1 and iNOS, and NFκB activation.
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Affiliation(s)
- Yi-Chun Huang
- School of Health, National Taichung University of Science and Technology, Taichung, Taiwan
| | - Chi-Ting Horng
- Medical Education Center, Kaohsiung Armed Forced General Hospital, Kaohsiung, Taiwan
- Department of Ophthalmology, Kaohsiung Armed Forced General Hospital, Kaohsiung, Taiwan
| | - Shyan-Tarng Chen
- School of Optometry, Chung Shan Medical University, Taichung, Taiwan
| | - Shiuan-Shinn Lee
- School of Public Health, Chung Shan Medical University, Taichung, Taiwan
| | - Ming-Ling Yang
- Department of Anatomy, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chien-Ying Lee
- Department of Pharmacology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Wu-Hsien Kuo
- Department of Medicine, Kaohsiung Armed Forced General Hospital,Taiwan, Kaohsiung, Taiwan
- Department of Medicine, Tri-Service General Hospital, Taipei, Taiwan
| | - Chung-Hsin Yeh
- Department of Neurology, Show Chwan Memorial Hospital, Changhua, Taiwan
- Department of Nursing, College of Medicine & Nursing, Hung Kuang University, Taichung, Taiwan
| | - Yu-Hsiang Kuan
- Department of Pharmacology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
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Yeh DYW, Yang YC, Wang JJ. Hepatic Warm Ischemia-Reperfusion-Induced Increase in Pulmonary Capillary Filtration Is Ameliorated by Administration of a Multidrug Resistance-Associated Protein 1 Inhibitor and Leukotriene D4 Antagonist (MK-571) Through Reducing Neutrophil Infiltration and Pulmonary Inflammation and Oxidative Stress in Rats. Transplant Proc 2016; 47:1087-91. [PMID: 26036526 DOI: 10.1016/j.transproceed.2014.10.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 10/28/2014] [Indexed: 01/11/2023]
Abstract
BACKGROUND Hepatopulmonary syndrome (HPS) is the major complication subsequent to liver ischemia and reperfusion (I/R) injury after resection or transplantation of liver. Hallmarks of HPS include increases in pulmonary leukotrienes and neutrophil recruitment and infiltrating across capillaries. We aimed to investigate the protective efficacy of MK-571, a multidrug resistance-associated protein 1 inhibitor and leukotriene D4 agonist, against hepatic I/R injury-associated change in capillary filtration. METHODS Eighteen Sprague-Dawley male rats were evenly divided into a sham-operated group, a hepatic I/R group, and an MK-571-treated I/R group. MK-571 was administered intraperitoneally 15 min before hepatic ischemia and every 12 hours during reperfusion. Ischemia was conducted by occluding the hepatic artery and portal vein for 30 min, followed by removing the clamps and closing the incision. Forty-eight hours after hepatic ischemia, we assessed the pulmonary capillary filtration coefficient (Kfc) through the use of in vitro-isolated, perfused rat lung preparation. We also measured the lung wet-to-dry weight ratio (W/D) and protein concentration in broncho-alveolar lavage fluid (PCBAL). Lung inflammation and oxidative stress were evaluated by use of tissue tumor necrosis factor (TNF)-α and malondialdehyde levels and lavage differential macrophage and neutrophil cell count. RESULTS Hepatic I/R injury markedly increased Kfc, W/D, PCBAL, tissue TNF-α level, and differential neutrophil cell count (P < .05). MK-571 treatment reduced neutrophil infiltration and lung inflammation and improved pulmonary capillary filtration, collectively suggesting lung protection. CONCLUSIONS Treatment with MK-571 before and during hepatic ischemia and reperfusion protects lung against pulmonary capillary barrier function impairment through decreasing pulmonary lung inflammation and lavage neutrophils.
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Affiliation(s)
- D Y-W Yeh
- Division of Chest Medicine, Internal Medicine, Shin Kong Wu-Ho-Su Memorial Hospital, Taipei, Taiwan; School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Y-C Yang
- School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - J-J Wang
- School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan.
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Oliveira MC, Tavares LP, Vago JP, Batista NV, Queiroz-Junior CM, Vieira AT, Menezes GB, Sousa LP, van de Loo FAJ, Teixeira MM, Amaral FA, Ferreira AVM. Tumor Necrosis Factor, but Not Neutrophils, Alters the Metabolic Profile in Acute Experimental Arthritis. PLoS One 2016; 11:e0146403. [PMID: 26742100 PMCID: PMC4712146 DOI: 10.1371/journal.pone.0146403] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 12/15/2015] [Indexed: 12/18/2022] Open
Abstract
Metabolic alterations are associated with arthritis apart from obesity. However, it is still unclear which is the underlying process behind these metabolic changes. Here, we investigate the role of tumor necrosis factor (TNF) in this process in an acute model of antigen-induced arthritis (AIA). Immunized male BALB/c mice received an intra-articular injection of PBS (control) or methylated bovine serum albumin (mBSA) into their knees, and were also pre-treated with different drugs: Etanercept, an anti-TNF drug, DF2156A, a CXCR1/2 receptor antagonist, or a monoclonal antibody RB6-8C5 to deplete neutrophils. Local challenge with mBSA evoked an acute neutrophil influx into the knee joint, and enhanced the joint nociception, along with a transient systemic metabolic alteration (higher levels of glucose and lipids, and altered adipocytokines). Pre-treatment with the conventional biological Etanercept, an inhibitor of TNF action, ameliorated the nociception and the acute joint inflammation dominated by neutrophils, and markedly improved many of the altered systemic metabolites (glucose and lipids), adipocytokines and PTX3. However, the lessening of metabolic changes was not due to diminished accumulation of neutrophils in the joint by Etanercept. Reduction of neutrophil recruitment by pre-treating AIA mice with DF2156A, or even the depletion of these cells by using RB6-8C5 reduced all of the inflammatory parameters and hypernociception developed after AIA challenge, but could not prevent the metabolic changes. Therefore, the induction of joint inflammation provoked acute metabolic alterations which were involved with TNF. We suggest that the role of TNF in arthritis-associated metabolic changes is not due to local neutrophils, which are the major cells present in this model, but rather due to cytokines.
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MESH Headings
- Adipokines/genetics
- Adipokines/metabolism
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Antibodies, Monoclonal/pharmacology
- Arthritis, Experimental/chemically induced
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- C-Reactive Protein/genetics
- C-Reactive Protein/metabolism
- Cartilage, Articular/drug effects
- Cartilage, Articular/metabolism
- Cartilage, Articular/pathology
- Cattle
- Etanercept/pharmacology
- Gene Expression
- Glucose/metabolism
- Injections, Intra-Articular
- Lipid Metabolism/drug effects
- Male
- Mice
- Mice, Inbred BALB C
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/metabolism
- Neutrophil Infiltration/drug effects
- Neutrophils/drug effects
- Neutrophils/metabolism
- Neutrophils/pathology
- Receptors, Interleukin-8A/antagonists & inhibitors
- Receptors, Interleukin-8A/genetics
- Receptors, Interleukin-8A/metabolism
- Receptors, Interleukin-8B/antagonists & inhibitors
- Receptors, Interleukin-8B/genetics
- Receptors, Interleukin-8B/metabolism
- Serum Albumin, Bovine
- Sulfonamides/pharmacology
- Tumor Necrosis Factor-alpha/antagonists & inhibitors
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
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Affiliation(s)
- Marina C. Oliveira
- Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luciana P. Tavares
- Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Juliana P. Vago
- Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Nathália V. Batista
- Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Celso M. Queiroz-Junior
- Department of Clinic, Pathology and Odontological Surgery, Faculty of Odontology, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Angelica T. Vieira
- Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Gustavo B. Menezes
- Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lirlândia P. Sousa
- Department of Clinical and Toxicological Analyses, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Fons A. J. van de Loo
- Experimental Rheumatology, Radboud university medical center, Nijmegen, The Netherlands
| | - Mauro M. Teixeira
- Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Flávio A. Amaral
- Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Adaliene V. M. Ferreira
- Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
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McDermott AJ, Falkowski NR, McDonald RA, Pandit CR, Young VB, Huffnagle GB. Interleukin-23 (IL-23), independent of IL-17 and IL-22, drives neutrophil recruitment and innate inflammation during Clostridium difficile colitis in mice. Immunology 2016; 147:114-24. [PMID: 26455347 PMCID: PMC4693884 DOI: 10.1111/imm.12545] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 09/17/2015] [Accepted: 10/05/2015] [Indexed: 12/11/2022] Open
Abstract
Our objective was to determine the role of the inflammatory cytokine interleukin-23 (IL-23) in promoting neutrophil recruitment, inflammatory cytokine expression and intestinal histopathology in response to Clostridium difficile infection. Wild-type (WT) and p19(-/-) (IL-23KO) mice were pre-treated with cefoperazone in their drinking water for 5 days, and after a 2-day recovery period were challenged with spores from C. difficile strain VPI 10463. Interleukin-23 deficiency was associated with significant defects in both the recruitment of CD11b(High) Ly6G(H) (igh) neutrophils to the colon and the expression of neutrophil chemoattractants and stabilization factors including Cxcl1, Cxcl2, Ccl3 and Csf3 within the colonic mucosa as compared with WT animals. Furthermore, the expression of inflammatory cytokines including Il33, Tnf and Il6 was significantly reduced in IL-23-deficient animals. There was also a trend towards less severe colonic histopathology in the absence of IL-23. The induction of Il17a and Il22 was also significantly abrogated in IL-23KO mice. Inflammatory cytokine expression and neutrophilic inflammation were not reduced in IL-17a-deficient mice or in mice treated with anti-IL-22 depleting monoclonal antibody. However, induction of RegIIIg was significantly reduced in animals treated with anti-IL-22 antibody. Taken together, these data indicate that IL-23, but not IL-17a or IL-22, promotes neutrophil recruitment and inflammatory cytokine and chemokine expression in the colon in response to C. difficile infection.
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Affiliation(s)
- Andrew J. McDermott
- Department of Microbiology and ImmunologyUniversity of Michigan Medical SchoolAnn ArborMIUSA
| | - Nicole R. Falkowski
- Division of Pulmonary and Critical Care MedicineDepartment of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMIUSA
| | - Roderick A. McDonald
- Division of Pulmonary and Critical Care MedicineDepartment of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMIUSA
| | - Chinmay R. Pandit
- Division of Pulmonary and Critical Care MedicineDepartment of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMIUSA
| | - Vincent B. Young
- Department of Microbiology and ImmunologyUniversity of Michigan Medical SchoolAnn ArborMIUSA
- Division of Infectious DiseasesDepartment of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMIUSA
| | - Gary B. Huffnagle
- Department of Microbiology and ImmunologyUniversity of Michigan Medical SchoolAnn ArborMIUSA
- Division of Pulmonary and Critical Care MedicineDepartment of Internal MedicineUniversity of Michigan Medical SchoolAnn ArborMIUSA
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Zhang XN, Ma ZJ, Wang Y, Li YZ, Sun B, Guo X, Pan CQ, Chen LM. The Four-Herb Chinese Medicine Formula Tuo-Li-Xiao-Du-San Accelerates Cutaneous Wound Healing in Streptozotocin-Induced Diabetic Rats through Reducing Inflammation and Increasing Angiogenesis. J Diabetes Res 2016; 2016:5639129. [PMID: 27057551 PMCID: PMC4709683 DOI: 10.1155/2016/5639129] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 11/08/2015] [Indexed: 12/16/2022] Open
Abstract
Impaired wound healing in diabetic patients is a serious complication that often leads to amputation or even death with limited effective treatments. Tuo-Li-Xiao-Du-San (TLXDS), a traditional Chinese medicine formula for refractory wounds, has been prescribed for nearly 400 years in China and shows good efficacy in promoting healing. In this study, we explored the effect of TLXDS on healing of diabetic wounds and investigated underlying mechanisms. Four weeks after intravenous injection of streptozotocin, two full-thickness excisional wounds were created with a 10 mm diameter sterile biopsy punch on the back of rats. The ethanol extract of TLXDS was given once daily by oral gavage. Wound area, histological change, inflammation, angiogenesis, and collagen synthesis were evaluated. TLXDS treatment significantly accelerated healing of diabetic rats and improved the healing quality. These effects were associated with reduced neutrophil infiltration and macrophage accumulation, enhanced angiogenesis, and increased collagen deposition. This study shows that TLXDS improves diabetes-impaired wound healing.
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Affiliation(s)
- Xiao-na Zhang
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development of Ministry of Health, Metabolic Disease Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Ze-jun Ma
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development of Ministry of Health, Metabolic Disease Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Ying Wang
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development of Ministry of Health, Metabolic Disease Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Yu-zhu Li
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development of Ministry of Health, Metabolic Disease Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Bei Sun
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development of Ministry of Health, Metabolic Disease Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Xin Guo
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development of Ministry of Health, Metabolic Disease Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Cong-qing Pan
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development of Ministry of Health, Metabolic Disease Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
- *Cong-qing Pan: and
| | - Li-ming Chen
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormone and Development of Ministry of Health, Metabolic Disease Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
- *Li-ming Chen:
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Deng W, Deng Y, Deng J, Wang DX, Zhang T. Losartan attenuated lipopolysaccharide-induced lung injury by suppression of lectin-like oxidized low-density lipoprotein receptor-1. Int J Clin Exp Pathol 2015; 8:15670-15676. [PMID: 26884836 PMCID: PMC4730049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 10/21/2015] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Recent study has shown that renin-angiotensin system plays an important role in the development of acute lung injury (ALI) with high level of angiotensin II (AngII) generated form AngI catalyzed by angiotensin-converting enzyme. AngII plays a major effect mainly through AT1 receptor. Therefore, we speculate inhibition of AT1 receptor may possibly attenuate the lung injury. Losartan, an antagonist of AT1 receptor for angiotensin II, attenuated lung injury by alleviation of the inflammation response in ALI, but the mechanism of losartan in ALI still remains unclear. METHODS Thirty male Sprague-Dawley rats were randomly divided into Control group, ALI group (LPS), and Losartan group (LPS + Losartan). Bronchoalveolar lavage fluid (BALF) and lung tissue were obtained for analysis. The expressions of lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1), intercellular adhesion molecule-1 (ICAM-1) and caspase-3 were detected by reverse transcriptase polymerase chain reaction (RT-PCR) and western blotting. RESULTS In ALI group, TNF-α and protein level in BALF, MPO activity in lung tissue, pulmonary edema and lung injury were significantly increased. Losartan significantly reduced LPS-induced increase in TNF-α and protein level in BALF, MPO activity, pulmonary edema and lung injury in LPS-induced lung injury. The mRNA and protein expression levels of LOX-1 were significantly decreased with the administration of losartan in LPS-induced lung injury. Also, losartan blocked the protein levels of caspase-3 and ICAM-1 mediated by LOX-1 in LPS-induced lung injury. CONCLUSIONS Losartan attenuated lung injury by alleviation of the inflammation and cell apoptosis by inhibition of LOX-1 in LPS-induced lung injury.
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Affiliation(s)
- Wang Deng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
| | - Yue Deng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
| | - Jia Deng
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
| | - Dao-Xin Wang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
| | - Ting Zhang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Chongqing Medical University Chongqing 40010, China
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de Oliveira FFB, de Araújo JCB, Pereira AF, Brito GAC, Gondim DV, Ribeiro RDA, de Menezes IRA, Vale ML. Antinociceptive and anti-inflammatory effects of Caryocar coriaceum Wittm fruit pulp fixed ethyl acetate extract on zymosan-induced arthritis in rats. J Ethnopharmacol 2015; 174:452-463. [PMID: 26341615 DOI: 10.1016/j.jep.2015.08.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 07/14/2015] [Accepted: 08/18/2015] [Indexed: 06/05/2023]
Abstract
The ethyl acetate extract from the fruit pulp of Caryocar coriaceum Wittm (Caryocaraceae), popularly known as pequi, has wide applications in popular medicine. Preclinical tests have demonstrated the therapeutic properties of the oil. We investigated the antinociceptive and anti-inflammatory effects of Pequi C. coriaceum Wittm ethyl acetate extract (PCCO) on zymosan-induced arthritis in rat knee joint. The animals were pretreated with PCCO for 7 consecutive days or with a single dose. Paw elevation time (PET), leukocyte infiltration, myeloperoxidase activity (MPO) and cytokine levels were assessed 4h after zymosan injection. Synovial tissue was harvested for immunohistochemical analysis, edema and vascular permeability. We observed a significant decrease in PET with PCCO pretreatment. PCCO showed a significant reduction of leukocyte migration and a decrease in MPO. Decreases were observed in cytokine release in the synovial fluid and TNF-α and cyclooxygenase-1 immunostaining in synovial tissue. Edema was inhibited by treatment with all doses of PCCO. The data suggest that PCCO exerts antinociceptive and anti-inflammatory effects on arthritis in rats.
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Affiliation(s)
- Francisco Fábio Bezerra de Oliveira
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil
| | - Joana Cláudia Bezerra de Araújo
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil
| | - Anamaria Falcão Pereira
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil
| | - Gerly Anne Castro Brito
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil; Programa de Pós-Graduação em Ciências Morfofuncionais, Departamento de Morfologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Delane Viana Gondim
- Programa de Pós-Graduação em Ciências Morfofuncionais, Departamento de Morfologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Ronaldo de Albuquerque Ribeiro
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil
| | - Irwin Rose Alencar de Menezes
- Programa de Pós-Graduação em Bioprospecção Molecular, Departamento de Química Biológica, Universidade Regional do Cariri, Laboratório de Farmacologia e Química Molecular, Crato, CE, Brazil
| | - Mariana Lima Vale
- Programa de Pós-Graduação em Farmacologia, Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Laboratório de Farmacologia da Inflamação e do Câncer, Fortaleza, CE, Brazil; Programa de Pós-Graduação em Ciências Morfofuncionais, Departamento de Morfologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
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Kuzubova NA, Lebedeva ES, Dvorakovskaya IV, Surkova EA, Platonova IS, Titova ON. Modulating Effect of Peptide Therapy on the Morphofunctional State of Bronchial Epithelium in Rats with Obstructive Lung Pathology. Bull Exp Biol Med 2015; 159:685-8. [PMID: 26468022 DOI: 10.1007/s10517-015-3047-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 11/26/2022]
Abstract
On the model of chronic obstructive pulmonary disease, the effect of therapy with low-molecular-weight peptides on restructuring and functional activity of bronchial epithelium for restoring the immune and barrier function of the lungs and prevention of inflammatory process progression was studied. Chronic obstructive pulmonary disease was modeled in rats by 60-day intermittent exposure to NO2. Administration of tetrapeptide Bronchogen for 1 month eliminates symptoms of remodeling of the bronchial epithelium and lung tissue typical of chronic obstructive pulmonary disease (goblet cell hyperplasia, squamous metaplasia, lymphocytic infiltration and emphysema, and restoration of ciliated cells). Enhanced production of secretory IgA, a local immunity marker, attested to normalization of functional activity of bronchial epithelium, while normalization of cell composition and profile of proinflammatory cytokines in the bronchoalveolar space reflected reduction of neutrophilic inflammation.
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Affiliation(s)
- N A Kuzubova
- Research Institute of Pulmonology, I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia
| | - E S Lebedeva
- Research Institute of Pulmonology, I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia.
| | - I V Dvorakovskaya
- Research Institute of Pulmonology, I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia
| | - E A Surkova
- Research Institute of Pulmonology, I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia
| | - I S Platonova
- Research Institute of Pulmonology, I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia
| | - O N Titova
- Research Institute of Pulmonology, I. P. Pavlov First St. Petersburg State Medical University, St. Petersburg, Russia
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Gabbita SP, Johnson MF, Kobritz N, Eslami P, Poteshkina A, Varadarajan S, Turman J, Zemlan F, Harris-White ME. Oral TNFα Modulation Alters Neutrophil Infiltration, Improves Cognition and Diminishes Tau and Amyloid Pathology in the 3xTgAD Mouse Model. PLoS One 2015; 10:e0137305. [PMID: 26436670 PMCID: PMC4593589 DOI: 10.1371/journal.pone.0137305] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 08/15/2015] [Indexed: 01/22/2023] Open
Abstract
Cytokines such as TNFα can polarize microglia/macrophages into different neuroinflammatory types. Skewing of the phenotype towards a cytotoxic state is thought to impair phagocytosis and has been described in Alzheimer’s Disease (AD). Neuroinflammation can be perpetuated by a cycle of increasing cytokine production and maintenance of a polarized activation state that contributes to AD progression. In this study, 3xTgAD mice, age 6 months, were treated orally with 3 doses of the TNFα modulating compound isoindolin-1,3 dithione (IDT) for 10 months. We demonstrate that IDT is a TNFα modulating compound both in vitro and in vivo. Following long-term IDT administration, mice were assessed for learning & memory and tissue and serum were collected for analysis. Results demonstrate that IDT is safe for long-term treatment and significantly improves learning and memory in the 3xTgAD mouse model. IDT significantly reduced paired helical filament tau and fibrillar amyloid accumulation. Flow cytometry of brain cell populations revealed that IDT increased the infiltrating neutrophil population while reducing TNFα expression in this population. IDT is a safe and effective TNFα and innate immune system modulator. Thus small molecule, orally bioavailable modulators are promising therapeutics for Alzheimer’s disease.
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Affiliation(s)
| | - Ming F. Johnson
- Veterans Administration-Greater Los Angeles Healthcare System, Los Angeles, California, United States of America
| | - Naomi Kobritz
- Veterans Administration-Greater Los Angeles Healthcare System, Los Angeles, California, United States of America
| | - Pirooz Eslami
- Veterans Administration-Greater Los Angeles Healthcare System, Los Angeles, California, United States of America
| | - Aleksandra Poteshkina
- Veterans Administration-Greater Los Angeles Healthcare System, Los Angeles, California, United States of America
| | - Sridhar Varadarajan
- University of North Carolina Wilmington, Department of Chemistry and Biochemistry, Wilmington, North Carolina, United States of America
| | - John Turman
- University of North Carolina Wilmington, Department of Chemistry and Biochemistry, Wilmington, North Carolina, United States of America
| | - Frank Zemlan
- P2D Bioscience, Inc., Cincinnati, Ohio, United States of America
| | - Marni E. Harris-White
- Veterans Administration-Greater Los Angeles Healthcare System, Los Angeles, California, United States of America
- University of California Los Angeles, David Geffen School of Medicine, Los Angeles, California, United States of America
- * E-mail:
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134
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Lammers KM, Chieppa M, Liu L, Liu S, Omatsu T, Janka-Junttila M, Casolaro V, Reinecker HC, Parent CA, Fasano A. Gliadin Induces Neutrophil Migration via Engagement of the Formyl Peptide Receptor, FPR1. PLoS One 2015; 10:e0138338. [PMID: 26378785 PMCID: PMC4574934 DOI: 10.1371/journal.pone.0138338] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 08/28/2015] [Indexed: 12/22/2022] Open
Abstract
Background Gliadin, the immunogenic component within gluten and trigger of celiac disease, is known to induce the production of Interleukin-8, a potent neutrophil-activating and chemoattractant chemokine. We sought to study the involvement of neutrophils in the early immunological changes following gliadin exposure. Methods Utilizing immunofluorescence microscopy and flow cytometry, the redistribution of major tight junction protein, Zonula occludens (ZO)-1, and neutrophil recruitment were assessed in duodenal tissues of gliadin-gavaged C57BL/6 wild-type and Lys-GFP reporter mice, respectively. Intravital microscopy with Lys-GFP mice allowed monitoring of neutrophil recruitment in response to luminal gliadin exposure in real time. In vitro chemotaxis assays were used to study murine and human neutrophil chemotaxis to gliadin, synthetic alpha-gliadin peptides and the neutrophil chemoattractant, fMet-Leu-Phe, in the presence or absence of a specific inhibitor of the fMet-Leu-Phe receptor-1 (FPR1), cyclosporine H. An irrelevant protein, zein, served as a control. Results Redistribution of ZO-1 and an influx of CD11b+Lys6G+ cells in the lamina propria of the small intestine were observed upon oral gavage of gliadin. In vivo intravital microscopy revealed a slowing down of GFP+ cells within the vessels and influx in the mucosal tissue within 2 hours after challenge. In vitro chemotaxis assays showed that gliadin strongly induced neutrophil migration, similar to fMet-Leu-Phe. We identified thirteen synthetic gliadin peptide motifs that induced cell migration. Blocking of FPR1 completely abrogated the fMet-Leu-Phe-, gliadin- and synthetic peptide-induced migration. Conclusions Gliadin possesses neutrophil chemoattractant properties similar to the classical neutrophil chemoattractant, fMet-Leu-Phe, and likewise uses FPR1 in the process.
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Affiliation(s)
- Karen M. Lammers
- Department of Pediatrics, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital East, Charlestown, Massachusetts, United States of America
- * E-mail:
| | - Marcello Chieppa
- Lymphocyte Biology Section, Laboratory of Immunology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - Lunhua Liu
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, NCI, NIH, Bethesda, Maryland, United States of America
| | - Song Liu
- Department of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Tatsushi Omatsu
- Department of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Mirkka Janka-Junttila
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, NCI, NIH, Bethesda, Maryland, United States of America
| | - Vincenzo Casolaro
- Department of Pediatrics, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital East, Charlestown, Massachusetts, United States of America
| | - Hans-Christian Reinecker
- Department of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Carole A. Parent
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, NCI, NIH, Bethesda, Maryland, United States of America
| | - Alessio Fasano
- Department of Pediatrics, Mucosal Immunology and Biology Research Center, Massachusetts General Hospital East, Charlestown, Massachusetts, United States of America
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Steele CW, Karim SA, Foth M, Rishi L, Leach JDG, Porter RJ, Nixon C, Jeffry Evans TR, Carter CR, Nibbs RJB, Sansom OJ, Morton JP. CXCR2 inhibition suppresses acute and chronic pancreatic inflammation. J Pathol 2015; 237:85-97. [PMID: 25950520 PMCID: PMC4833178 DOI: 10.1002/path.4555] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 04/01/2015] [Accepted: 04/28/2015] [Indexed: 12/18/2022]
Abstract
Pancreatitis is a significant clinical problem and the lack of effective therapeutic options means that treatment is often palliative rather than curative. A deeper understanding of the pathogenesis of both acute and chronic pancreatitis is necessary to develop new therapies. Pathological changes in pancreatitis are dependent on innate immune cell recruitment to the site of initial tissue damage, and on the coordination of downstream inflammatory pathways. The chemokine receptor CXCR2 drives neutrophil recruitment during inflammation, and to investigate its role in pancreatic inflammation, we induced acute and chronic pancreatitis in wild-type and Cxcr2(-/-) mice. Strikingly, Cxcr2(-/-) mice were strongly protected from tissue damage in models of acute pancreatitis, and this could be recapitulated by neutrophil depletion or by the specific deletion of Cxcr2 from myeloid cells. The pancreata of Cxcr2(-/-) mice were also substantially protected from damage during chronic pancreatitis. Neutrophil depletion was less effective in this model, suggesting that CXCR2 on non-neutrophils contributes to the development of chronic pancreatitis. Importantly, pharmacological inhibition of CXCR2 in wild-type mice replicated the protection seen in Cxcr2(-/-) mice in acute and chronic models of pancreatitis. Moreover, acute pancreatic inflammation was reversible by inhibition of CXCR2. Thus, CXCR2 is critically involved in the development of acute and chronic pancreatitis in mice, and its inhibition or loss protects against pancreatic damage. CXCR2 may therefore be a viable therapeutic target in the treatment of pancreatitis.
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MESH Headings
- Acute Disease
- Animals
- Anti-Inflammatory Agents/pharmacology
- Ceruletide
- Cytoprotection
- Disease Models, Animal
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Neutrophil Infiltration/drug effects
- Neutrophils/drug effects
- Neutrophils/immunology
- Neutrophils/metabolism
- Pancreas/drug effects
- Pancreas/immunology
- Pancreas/metabolism
- Pancreas/pathology
- Pancreatitis/chemically induced
- Pancreatitis/genetics
- Pancreatitis/immunology
- Pancreatitis/metabolism
- Pancreatitis/pathology
- Pancreatitis/prevention & control
- Pancreatitis, Chronic/chemically induced
- Pancreatitis, Chronic/genetics
- Pancreatitis, Chronic/immunology
- Pancreatitis, Chronic/metabolism
- Pancreatitis, Chronic/pathology
- Pancreatitis, Chronic/prevention & control
- Peptides/pharmacology
- Receptors, Interleukin-8B/antagonists & inhibitors
- Receptors, Interleukin-8B/deficiency
- Receptors, Interleukin-8B/genetics
- Receptors, Interleukin-8B/immunology
- Signal Transduction/drug effects
- Time Factors
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Affiliation(s)
- Colin W Steele
- Cancer Research UK Beatson Institute, Glasgow, UK
- Department of Surgery, Glasgow Royal Infirmary, Glasgow, UK
| | | | - Mona Foth
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Loveena Rishi
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Joshua D G Leach
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | | | - Colin Nixon
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - T R Jeffry Evans
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - C Ross Carter
- Department of Surgery, Glasgow Royal Infirmary, Glasgow, UK
| | - Robert J B Nibbs
- Centre for Immunobiology, Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow, UK
| | - Owen J Sansom
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
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136
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Jianlong W, Ruixing H, Guangliang Z, Jihui J. [The influence of estradiol on histomorphology of skin flaps with ischemia reperfusion injury]. Zhonghua Zheng Xing Wai Ke Za Zhi 2015; 31:365-369. [PMID: 26930812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To study the influence of estradiol on histomorphology of skin flaps with ischemia reperfusion injury. METHODS 48 adult male Wistar rats aged 12-14 weeks old, were randomly divided into control group (group I), ischemia-reperfusion group (group II), saline group (group III), estradiol group (group IV). Superficial epigastric artery axial flap, 3 cm x 6 cm in size, was made in the left lower quadrant abdominal of each rat. Flap model with ischemia-reperfusion injury was established by using the nondestructive micro vascular clamp to clamp the superficial epigastric artery. The general condition of the flap was observed after operation. At 7 days after operation, the survival rate of the flap was detected, the flaps were harvested to receive histology and ultrastructural observation. The neutrophils level of the superficial epigastric vein were tested. RESULTS 7 days after operation, the survival rate of the flap in group IV was significantly higher than that in group II, III (P < 0.05). The neutrophils level in group IV was lower than that in group II, III (P < 0.05). The histological observation showed that the degree of tissue swelling and inflammatory exudation in group IV was more slight than that in group II, III. Presence of high neutrophils density were observed in group II, III, while slight inflammation and necrosis were observed in group IV. In group I, collagen fibers in flap are regularly arranged with no significant necrosis. Oganelles structure disappeared and apoptotic bodies were shown in group II and group III, even the lysosome could be seen in the cell. Collagen fibers in flap are regularly arranged with slight swelling and no obvious ultrastructural necrocytosis was seen in the cell of group IV. CONCLUSION The estradiol can significantly increase flap survival rate by inhibiting neutrophils infiltration and improving the pathological changes of organization structure in flap.
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137
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Calixto-Campos C, Carvalho TT, Hohmann MSN, Pinho-Ribeiro FA, Fattori V, Manchope MF, Zarpelon AC, Baracat MM, Georgetti SR, Casagrande R, Verri WA. Vanillic Acid Inhibits Inflammatory Pain by Inhibiting Neutrophil Recruitment, Oxidative Stress, Cytokine Production, and NFκB Activation in Mice. J Nat Prod 2015; 78:1799-808. [PMID: 26192250 DOI: 10.1021/acs.jnatprod.5b00246] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Vanillic acid (1) is a flavoring agent found in edible plants and fruits. It is an oxidized form of vanillin. Phenolic compounds form a substantial part of plant foods used as antioxidants with beneficial biological activities. These compounds have received considerable attention because of their role in preventing human diseases. Especially, 1 presents antibacterial, antimicrobial, and chemopreventive effects. However, the mechanisms by which 1 exerts its anti-inflammatory effects in vivo are incompletely understood. Thus, the effect of 1 was evaluated in murine models of inflammatory pain. Treatment with 1 inhibited the overt pain-like behavior induced by acetic acid, phenyl-p-benzoquinone, the second phase of the formalin test, and complete Freund's adjuvant (CFA). Treatment with 1 also inhibited carrageenan- and CFA-induced mechanical hyperalgesia, paw edema, myeloperoxidase activity, and N-acetyl-β-D-glucosaminidase activity. The anti-inflammatory mechanisms of 1 involved the inhibition of oxidative stress, pro-inflammatory cytokine production, and NFκB activation in the carrageenan model. The present study demonstrated 1 presents analgesic and anti-inflammatory effects in a wide range of murine inflammation models, and its mechanisms of action involves antioxidant effects and NFκB-related inhibition of pro-inflammatory cytokine production.
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Affiliation(s)
- Cássia Calixto-Campos
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina , 86057970 Londrina, Brazil
| | - Thacyana T Carvalho
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina , 86057970 Londrina, Brazil
| | - Miriam S N Hohmann
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina , 86057970 Londrina, Brazil
| | - Felipe A Pinho-Ribeiro
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina , 86057970 Londrina, Brazil
| | - Victor Fattori
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina , 86057970 Londrina, Brazil
| | - Marília F Manchope
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina , 86057970 Londrina, Brazil
| | - Ana C Zarpelon
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina , 86057970 Londrina, Brazil
| | - Marcela M Baracat
- Departamento de Ciências Farmacêuticas, Centro de Ciências de Saúde, Universidade Estadual de Londrina , 86039440 Londrina, Brazil
| | - Sandra R Georgetti
- Departamento de Ciências Farmacêuticas, Centro de Ciências de Saúde, Universidade Estadual de Londrina , 86039440 Londrina, Brazil
| | - Rubia Casagrande
- Departamento de Ciências Farmacêuticas, Centro de Ciências de Saúde, Universidade Estadual de Londrina , 86039440 Londrina, Brazil
| | - Waldiceu A Verri
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina , 86057970 Londrina, Brazil
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Schneiders J, Fuchs F, Damm J, Herden C, Gerstberger R, Soares DM, Roth J, Rummel C. The transcription factor nuclear factor interleukin 6 mediates pro- and anti-inflammatory responses during LPS-induced systemic inflammation in mice. Brain Behav Immun 2015; 48:147-64. [PMID: 25813145 DOI: 10.1016/j.bbi.2015.03.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 02/27/2015] [Accepted: 03/14/2015] [Indexed: 11/18/2022] Open
Abstract
The transcription factor nuclear factor interleukin 6 (NF-IL6) plays a pivotal role in neuroinflammation and, as we previously suggested, hypothalamus-pituitary-adrenal-axis-activation. Here, we investigated its contribution to immune-to-brain communication and brain controlled sickness symptoms during lipopolysaccharide (LPS)-induced (50 or 2500 μg/kg i.p.) systemic inflammation in NF-IL6-deficient (KO) or wildtype mice (WT). In WT LPS induced a dose-dependent febrile response and reduction of locomotor activity. While KO developed a normal fever after low-dose LPS-injection the febrile response was almost abolished 3-7 h after a high LPS-dose. High-dose LPS-stimulation was accompanied by decreased (8 h) followed by enhanced (24 h) inflammation in KO compared to WT e.g. hypothalamic mRNA-expression including microsomal prostaglandin E synthase, inducible nitric oxide synthase and further inflammatory mediators, neutrophil recruitment to the brain as well as plasma levels of inflammatory markers such as IL-6 and IL-10. Interestingly, KO showed reduced locomotor activity even under basal conditions, but enhanced locomotor activity to novel environment stress. Hypothalamic-pituitary-adrenal-axis-activity of KO was intact, but tryptophan-metabolizing enzymes were shifted to enhanced serotonin production and reuptake. Overall, we showed for the first time that NF-IL6 plays a dual role for sickness response and immune-to-brain communication: acting pro-inflammatory at 8h but anti-inflammatory at 24 h after onset of the inflammatory response reflecting active natural programming of inflammation. Moreover, reduced locomotor activity observed in KO might be due to altered tryptophan metabolism and serotonin reuptake suggesting some role for NF-IL6 as therapeutic target for depressive disorders.
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Affiliation(s)
- Jenny Schneiders
- Institute of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, 35392 Giessen, Germany
| | - Franziska Fuchs
- Institute of Veterinary Pathology, Justus-Liebig-University Giessen, 35392 Giessen, Germany
| | - Jelena Damm
- Institute of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, 35392 Giessen, Germany
| | - Christiane Herden
- Institute of Veterinary Pathology, Justus-Liebig-University Giessen, 35392 Giessen, Germany
| | - Rüdiger Gerstberger
- Institute of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, 35392 Giessen, Germany
| | - Denis Melo Soares
- Laboratory of Pharmacology, Faculty of Pharmacy, Federal University of Bahia, Salvador 40110-060, Bahia, Brazil
| | - Joachim Roth
- Institute of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, 35392 Giessen, Germany
| | - Christoph Rummel
- Institute of Veterinary Physiology and Biochemistry, Justus-Liebig-University Giessen, 35392 Giessen, Germany.
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139
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Chang S, Linderholm A, Harper R. DUOX-Mediated Signaling Is Not Required for LPS-Induced Neutrophilic Response in the Airways. PLoS One 2015; 10:e0131810. [PMID: 26148206 PMCID: PMC4493023 DOI: 10.1371/journal.pone.0131810] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 06/07/2015] [Indexed: 11/30/2022] Open
Abstract
Oxidant production from DUOX1 has been proposed to lead to neutrophil recruitment into the airways when lung homeostasis is compromised. The objective of this study was to determine whether DUOX-derived hydrogen peroxide is required for LPS-induced neutrophil recruitment, using a functional DUOX knock out mouse model. We found that LPS induced profound neutrophilic lung inflammation in both Duoxa+/+ and Duoxa-/- mice between 3h and 24h. Duoxa-/- mice had significantly higher neutrophil influx 24h after LPS instillation despite similar cytokine levels (KC, MIP-2, or TGF-α) between the two groups. These findings suggest that LPS-TLR-4-induced KC or MIP-2 cytokine induction and subsequent neutrophil recruitment in the airway does not require DUOX-derived hydrogen peroxide from airway epithelium.
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Affiliation(s)
- Sandra Chang
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, California 95616, United States
| | - Angela Linderholm
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, California 95616, United States
| | - Richart Harper
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, California 95616, United States
- * E-mail:
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140
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Moore SM, Holt VV, Malpass LR, Hines IN, Wheeler MD. Fatty acid-binding protein 5 limits the anti-inflammatory response in murine macrophages. Mol Immunol 2015; 67:265-75. [PMID: 26105806 DOI: 10.1016/j.molimm.2015.06.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 05/27/2015] [Accepted: 06/01/2015] [Indexed: 12/16/2022]
Abstract
The beginning stages of liver damage induced by various etiologies (i.e. high fat diet, alcohol consumption, toxin exposure) are characterized by abnormal accumulation of lipid in liver. Alterations in intracellular lipid transport, storage, and metabolism accompanied by cellular insult within the liver play an important role in the pathogenesis of liver disease, often involving a sustained inflammatory response. The intracellular lipid transporter, fatty acid binding protein 5 (FABP5), is highly expressed in macrophages and may play an important role in the hepatic inflammatory response after endotoxin exposure in mice. This study tested the hypothesis that FABP5 regulates macrophage response to LPS in male C57bl/6 (wild type) and FABP5 knockout mice, both in vitro and in vivo. Treatment with LPS revealed that loss of FABP5 enhances the number of hepatic F4/80(+) macrophages in the liver despite limited liver injury. Conversely, FABP5 knock out mice display higher mRNA levels of anti-inflammatory cytokines IL-10, arginase, YM-1, and Fizz-1 in liver compared to wild type mice. Bone marrow derived macrophages stimulated with inflammatory (LPS and IFN-γ) or anti-inflammatory (IL-4) mediators also showed significantly higher expression of anti-inflammatory/regulatory factors. These findings reveal a regulatory role of FABP5 in the acute inflammatory response to LPS-induced liver injury, which is consistent with the principle finding that FABP5 is a regulator of macrophage phenotype. Specifically, these findings demonstrate that loss of FABP5 promotes a more anti-inflammatory response.
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Affiliation(s)
- Sherri M Moore
- Department of Nutrition Science, College of Human Ecology, East Carolina University, Greenville, NC 27858, United States.
| | - Vivian V Holt
- Department of Nutrition Science, College of Human Ecology, East Carolina University, Greenville, NC 27858, United States.
| | - Lillie R Malpass
- Department of Nutrition Science, College of Human Ecology, East Carolina University, Greenville, NC 27858, United States.
| | - Ian N Hines
- Department of Nutrition Science, College of Human Ecology, East Carolina University, Greenville, NC 27858, United States.
| | - Michael D Wheeler
- Department of Nutrition Science, College of Human Ecology, East Carolina University, Greenville, NC 27858, United States.
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141
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Zhao S, Zhang Y, Chen Q, Dong S, Zhang G, Li J, Yang X, Li Y. A modified "double-hit" induced acute lung injury model in rats and protective effects of tetramethylpyrazine on the injury via Rho/ROCK pathway. Int J Clin Exp Pathol 2015; 8:4581-4587. [PMID: 26191148 PMCID: PMC4503020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 04/13/2015] [Indexed: 06/04/2023]
Abstract
We focused on the production and evaluation of a modified "double-hit" induced acute lung injury (ALI) model, which closely mimics the clinical situation. Further, tetramethylpyrazine (TMP), an alkaloid contained in ligustrazine was evaluated for its potent anti-inflammatory effects in this model. Rats were randomized into 4 groups: G1 (NS control group), G2 ("double-hit" group), G3 (low dosage TMP group) and G4 (high dosage TMP group). The rats in G2, G3 and G4 were intraperitoneally injected with a low dose of LPS followed by intratracheal injection with median dose of LPS to establish the "double-hit" model. The rats in G3, G4 were intraperitoneally injected with low (G3), high (G4) dosage TMP for the protection against ALI. Upon termination of the experiment, TMP attenuated the harmful changes in animal model reaction, breathing frequency, histological examination, lung W/D-weight ratio, BAL fluid PMNs percentage, MPO activity and ROCK2 mRNA expression. We found inhibiting RhoA/ROCK pathway might attribute to TMP-induced protection against ALI.
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Affiliation(s)
- Shidi Zhao
- Department of Pathophysiology, Bengbu Medical CollegeBengbu 233030, Anhui Province, PR China
| | - Yong Zhang
- The First Affiliated Hospital of Bengbu Medical CollegeBengbu 233030, Anhui Province, PR China
| | - Qianfen Chen
- Department of Pathophysiology, Bengbu Medical CollegeBengbu 233030, Anhui Province, PR China
| | - Shuying Dong
- Department of Pathophysiology, Bengbu Medical CollegeBengbu 233030, Anhui Province, PR China
| | - Gaofeng Zhang
- Department of Pathophysiology, Bengbu Medical CollegeBengbu 233030, Anhui Province, PR China
| | - Jia Li
- Department of Pathophysiology, Bengbu Medical CollegeBengbu 233030, Anhui Province, PR China
| | - Xilan Yang
- Department of Pathophysiology, Bengbu Medical CollegeBengbu 233030, Anhui Province, PR China
| | - Yan Li
- Department of Pathophysiology, Bengbu Medical CollegeBengbu 233030, Anhui Province, PR China
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Jones HD, Yoo J, Crother TR, Kyme P, Ben-Shlomo A, Khalafi R, Tseng CW, Parks WC, Arditi M, Liu GY, Shimada K. Nicotinamide exacerbates hypoxemia in ventilator-induced lung injury independent of neutrophil infiltration. PLoS One 2015; 10:e0123460. [PMID: 25875775 PMCID: PMC4395431 DOI: 10.1371/journal.pone.0123460] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 03/03/2015] [Indexed: 01/31/2023] Open
Abstract
Background Ventilator-induced lung injury is a form of acute lung injury that develops in critically ill patients on mechanical ventilation and has a high degree of mortality. Nicotinamide phosphoribosyltransferase is an enzyme that is highly upregulated in ventilator-induced lung injury and exacerbates the injury when given exogenously. Nicotinamide (vitamin B3) directly inhibits downstream pathways activated by Nicotinamide phosphoribosyltransferase and is protective in other models of acute lung injury. Methods We administered nicotinamide i.p. to mice undergoing mechanical ventilation with high tidal volumes to study the effects of nicotinamide on ventilator-induced lung injury. Measures of injury included oxygen saturations and bronchoalveolar lavage neutrophil counts, protein, and cytokine levels. We also measured expression of nicotinamide phosophoribosyltransferase, and its downstream effectors Sirt1 and Cebpa, Cebpb, Cebpe. We assessed the effect of nicotinamide on the production of nitric oxide during ventilator-induced lung injury. We also studied the effects of ventilator-induced lung injury in mice deficient in C/EBPε. Results Nicotinamide treatment significantly inhibited neutrophil infiltration into the lungs during ventilator-induced lung injury, but did not affect protein leakage or cytokine production. Surprisingly, mice treated with nicotinamide developed significantly worse hypoxemia during mechanical ventilation. This effect was not linked to increases in nitric oxide production or alterations in expression of Nicotinamide phosphoribosyl transferase, Sirt1, or Cebpa and Cebpb. Cebpe mRNA levels were decreased with either nicotinamide treatment or mechanical ventilation, but mice lacking C/EBPε developed the same degree of hypoxemia and ventilator-induced lung injury as wild-type mice. Conclusions Nicotinamide treatment during VILI inhibits neutrophil infiltration of the lungs consistent with a strong anti-inflammatory effect, but paradoxically also leads to the development of significant hypoxemia. These findings suggest that pulmonary neutrophilia is not linked to hypoxemia in ventilator-induced lung injury, and that nicotinamide exacerbates hypoxemia during VILI.
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Affiliation(s)
- Heather D. Jones
- Division of Pulmonary and Critical Care Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
- Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Jeena Yoo
- Division of Pulmonary and Critical Care Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Timothy R. Crother
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
- Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Pierre Kyme
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
- Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Anat Ben-Shlomo
- Pituitary Center, Department of Medicine, Cedars Sinai Medical Center, Los Angeles, CA, United States of America
| | - Ramtin Khalafi
- Pituitary Center, Department of Medicine, Cedars Sinai Medical Center, Los Angeles, CA, United States of America
| | - Ching W. Tseng
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
- Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - William C. Parks
- Division of Pulmonary and Critical Care Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Moshe Arditi
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
- Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - George Y. Liu
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
- Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Kenichi Shimada
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
- Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
- * E-mail:
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Idrovo JP, Yang WL, Jacob A, Ajakaiye MA, Cheyuo C, Wang Z, Prince JM, Nicastro J, Coppa GF, Wang P. Combination of adrenomedullin with its binding protein accelerates cutaneous wound healing. PLoS One 2015; 10:e0120225. [PMID: 25781901 PMCID: PMC4363560 DOI: 10.1371/journal.pone.0120225] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 01/20/2015] [Indexed: 12/20/2022] Open
Abstract
Cutaneous wound continues to cause significant morbidity and mortality in the setting of diseases such as diabetes and cardiovascular diseases. Despite advances in wound care management, there is still an unmet medical need exists for efficient therapy for cutaneous wound. Combined treatment of adrenomedullin (AM) and its binding protein-1 (AMBP-1) is protective in various disease conditions. To examine the effect of the combination treatment of AM and AMBP-1 on cutaneous wound healing, full-thickness 2.0-cm diameter circular excision wounds were surgically created on the dorsum of rats, saline (vehicle) or AM/AMBP-1 (96/320 μg kg BW) was topically applied to the wound daily and wound size measured. At days 3, 7, and 14, skin samples were collected from the wound sites. AM/AMBP-1 treated group had significantly smaller wound surface area than the vehicle group over the 14-day time course. At day 3, AM/AMBP-1 promoted neutrophil infiltration (MPO), increased cytokine levels (IL-6 and TNF-α), angiogenesis (CD31, VEGF and TGFβ-1) and cell proliferation (Ki67). By day 7 and 14, AM/AMBP-1 treatment decreased MPO, followed by a rapid resolution of inflammation characterized by a decrease in cytokines. At the matured stage, AM/AMBP-1 treatment increased the alpha smooth muscle actin expression (mature blood vessels) and Masson-Trichrome staining (collagen deposition) along the granulation area, and increased MMP-9 and decreased MMP-2 mRNA expressions. TGFβ-1 mRNA levels in AM/AMBP-1 group were 5.3 times lower than those in the vehicle group. AM/AMBP-1 accelerated wound healing by promoting angiogenesis, collagen deposition and remodeling. Treatment also shortened the days to reach plateau for wound closure. Thus, AM/AMBP-1 may be further developed as a therapeutic for cutaneous wound healing.
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Affiliation(s)
- Juan-Pablo Idrovo
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
| | - Weng-Lang Yang
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
- Center for Translational Research, Feinstein Institute for Medical Research, Manhasset, New York, United States of America
| | - Asha Jacob
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
- Center for Translational Research, Feinstein Institute for Medical Research, Manhasset, New York, United States of America
| | - Michael A. Ajakaiye
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
| | - Cletus Cheyuo
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
| | - Zhimin Wang
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
| | - Jose M. Prince
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
| | - Jeffrey Nicastro
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
| | - Gene F. Coppa
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
| | - Ping Wang
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York, United States of America
- Center for Translational Research, Feinstein Institute for Medical Research, Manhasset, New York, United States of America
- * E-mail:
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Seiffert J, Hussain F, Wiegman C, Li F, Bey L, Baker W, Porter A, Ryan MP, Chang Y, Gow A, Zhang J, Zhu J, Tetley TD, Chung KF. Pulmonary toxicity of instilled silver nanoparticles: influence of size, coating and rat strain. PLoS One 2015; 10:e0119726. [PMID: 25747867 PMCID: PMC4352037 DOI: 10.1371/journal.pone.0119726] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Accepted: 01/24/2015] [Indexed: 11/18/2022] Open
Abstract
Particle size and surface chemistry are potential determinants of silver nanoparticle (AgNP) respiratory toxicity that may also depend on the lung inflammatory state. We compared the effects of intratracheally-administered AgNPs (20 nm and 110 nm; polyvinylpyrrolidone (PVP) and citrate-capped; 0.1 mg/Kg) in Brown-Norway (BN) and Sprague-Dawley (SD) rats. In BN rats, there was both a neutrophilic and eosinophilic response, while in SD rats, there was a neutrophilic response at day 1, greatest for the 20 nm citrate-capped AgNPs. Eosinophilic cationic protein was increased in bronchoalveolar lavage (BAL) in BN and SD rats on day 1. BAL protein and malondialdehyde levels were increased in BN rats at 1 and 7 days, and BAL KC, CCL11 and IL-13 levels at day 1, with increased expression of CCL11 in lung tissue. Pulmonary resistance increased and compliance decreased at day 1, with persistence at day 7. The 20 nm, but not the 110 nm, AgNPs increased bronchial hyperresponsiveness on day 1, which continued at day 7 for the citrate-capped AgNPs only. The 20 nm versus the 110 nm size were more proinflammatory in terms of neutrophil influx, but there was little difference between the citrate-capped versus the PVP-capped AgNPs. AgNPs can induce pulmonary eosinophilic and neutrophilic inflammation with bronchial hyperresponsiveness, features characteristic of asthma.
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Affiliation(s)
- Joanna Seiffert
- Airways Disease, National Heart & Lung Institute, Imperial College, London, United Kingdom
| | - Farhana Hussain
- Airways Disease, National Heart & Lung Institute, Imperial College, London, United Kingdom
| | - Coen Wiegman
- Airways Disease, National Heart & Lung Institute, Imperial College, London, United Kingdom
| | - Feng Li
- Airways Disease, National Heart & Lung Institute, Imperial College, London, United Kingdom
| | - Leo Bey
- Department of Material Science, Chemistry and the London Centre for Nanotechnology, Imperial College, London, United Kingdom
- Department of Mechanical Engineering, Faculty of Engineering Building, University of Malaya, Kuala Lumpur, Malaysia
| | - Warren Baker
- Airways Disease, National Heart & Lung Institute, Imperial College, London, United Kingdom
| | - Alexandra Porter
- Department of Material Science, Chemistry and the London Centre for Nanotechnology, Imperial College, London, United Kingdom
| | - Mary P. Ryan
- Department of Material Science, Chemistry and the London Centre for Nanotechnology, Imperial College, London, United Kingdom
| | - Yan Chang
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Andrew Gow
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, New Jersey, United States of America
| | - Junfeng Zhang
- Nicholas School of Environment & Duke Global Health Institute, Duke University, Durham, United States of America
| | - Jie Zhu
- Airways Disease, National Heart & Lung Institute, Imperial College, London, United Kingdom
| | - Terry D. Tetley
- Airways Disease, National Heart & Lung Institute, Imperial College, London, United Kingdom
| | - Kian Fan Chung
- Airways Disease, National Heart & Lung Institute, Imperial College, London, United Kingdom
- * E-mail:
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145
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Gelli K, Porika M, Anreddy RNR. Assessment of pulmonary toxicity of MgO nanoparticles in rats. Environ Toxicol 2015; 30:308-314. [PMID: 24096598 DOI: 10.1002/tox.21908] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Revised: 08/13/2013] [Accepted: 08/27/2013] [Indexed: 06/02/2023]
Abstract
In this study, we have evaluated the pulmonary toxicity of MgO nanoparticles (MgO NPs) in rats following their exposure. NPs in phosphate buffered saline + 1% Tween 80 were exposed via intratracheal instillation at a doses of 1 mg/kg or 5 mg/kg into rat lungs and evaluated for various tissue damage markers like alkaline phosphatase (ALP) and lactate dehydrogenase (LDH) in bronchoalveolar lavage (BAL) fluid and histopathology of lungs at 1, 7, and 30 days of post-exposure intervals. A dose-dependant increase in ALP and LDH activity was observed in BAL fluids of rat lungs than sham control at all post-exposure periods (P <0.05), and a dose-dependant infiltration of interstitial lymphocytes, peribronchiolar lymphocytic infiltration, and dilated and/or congested vessels at 1 day post-exposure period, worsened at 1 week period, and were reduced at 1 month at histology, indicating the pulmonary toxicity of MgO NPs. In conclusion, MgO NPs exposure produced a dose-dependent pulmonary toxicity in rats and was comparable with that of Quartz particles.
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Affiliation(s)
- Kiranmai Gelli
- Department of Pharmacology, Vaageswari College of Pharmacy, Karimnagar, 505481, Andhra Pradesh, India
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146
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Xu H, Testai FD, Valyi-Nagy T, N Pavuluri M, Zhai F, Nanegrungsunk D, Paisansathan C, Pelligrino DA. VAP-1 blockade prevents subarachnoid hemorrhage-associated cerebrovascular dilating dysfunction via repression of a neutrophil recruitment-related mechanism. Brain Res 2015; 1603:141-9. [PMID: 25662771 DOI: 10.1016/j.brainres.2015.01.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 01/19/2015] [Accepted: 01/27/2015] [Indexed: 11/19/2022]
Abstract
Our previous findings indicated that in rats subjected to subarachnoid hemorrhage (SAH), suppression of post-SAH neuroinflammation via vascular adhesion protein-1 (VAP-1) blockade provides significant neuroprotection. We and others have reported that neuroinflammation contributes to cerebral microvascular impairment. Thus, in the present study, we tested the hypotheses that: (1) treatment with LJP-1586, a selective VAP-1 blocker, prevents SAH-associated pial arteriolar dilating dysfunction; and (2) the vasculoprotective effect of LJP-1586 arises from inhibiting SAH-elicited neutrophil recruitment. We utilized an endovascular perforation model of SAH. Rats subjected to SAH were either treated with LJP-1586 or rendered neutropenic via anti-neutrophil-antibody treatment. Findings from these groups were compared to their respective control groups. At 48 h post-SAH, rats were evaluated for neurobehavioral function, pial venular leukocyte trafficking, and pial arteriolar reactivity to topically-applied acetylcholine (ACh) and S-nitroso-N-acetyl penicillamine (SNAP). Pial arteriolar responses decreased at 48 h post-SAH. However, in the presence of LJP-1586, those responses were significantly preserved. Neutrophil-depletion yielded a substantial suppression of SAH-associated leukocyte adhesion and infiltration. This was accompanied by a significant preservation of pial arteriolar dilating function, suggesting a direct link between neutrophil recruitment and the loss of cerebral microvascular reactivity. Moreover, neutrophil depletion also was associated with significant protection of neurobehavioral function. The present findings suggest that attenuating SAH-linked elevation in neutrophil trafficking will protect against the development of microvascular dysfunction and subsequent neurological impairment.
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Affiliation(s)
- Haoliang Xu
- Neuroanesthesia Research Laboratory, Department of Anesthesiology, University of Illinois-Chicago, Chicago, IL, United States.
| | - Fernando D Testai
- Department of Neurology and Rehabilitation, University of Illinois-Chicago, Chicago, IL, United States
| | - Tibor Valyi-Nagy
- Department of Pathology, University of Illinois-Chicago, Chicago, IL, United States
| | - Mani N Pavuluri
- Department of Psychiatry, University of Illinois-Chicago, Chicago, IL, United States
| | - Fengguo Zhai
- Neuroanesthesia Research Laboratory, Department of Anesthesiology, University of Illinois-Chicago, Chicago, IL, United States
| | - Danop Nanegrungsunk
- Neuroanesthesia Research Laboratory, Department of Anesthesiology, University of Illinois-Chicago, Chicago, IL, United States
| | - Chanannait Paisansathan
- Neuroanesthesia Research Laboratory, Department of Anesthesiology, University of Illinois-Chicago, Chicago, IL, United States
| | - Dale A Pelligrino
- Neuroanesthesia Research Laboratory, Department of Anesthesiology, University of Illinois-Chicago, Chicago, IL, United States
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147
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Adage T, Konya V, Weber C, Strutzmann E, Fuchs T, Zankl C, Gerlza T, Jeremic D, Heinemann A, Kungl AJ. Targeting glycosaminoglycans in the lung by an engineered CXCL8 as a novel therapeutic approach to lung inflammation. Eur J Pharmacol 2015; 748:83-92. [PMID: 25554213 DOI: 10.1016/j.ejphar.2014.12.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 12/16/2014] [Accepted: 12/18/2014] [Indexed: 01/13/2023]
Abstract
It is broadly recognized that chemokine-activated neutrophils play a crucial role in the inflammation and disruption of lung tissue observed in several acute and chronic lung diseases. Since glycosaminoglycan side chains of proteoglycans act as chemokine co-receptors in inflammation, we have used a CXCL8-based dominant-negative mutant, dnCXCL8, to displace neutrophil-related chemokines in murine lungs using models of lung inflammation. Treatment with dnCXCL8 resulted in a dose-dependent reduction of neutrophil counts in bronchoalveolar lavage (BAL) of mice exposed to lipopolysaccharide after intravenous, subcutaneous and intratracheal administration. A strong and significant therapeutic effect was achieved already at a dose of 40 µg/kg of dnCXCL8. A similar dose response, but showing a broader spectrum of reduced inflammatory cells and soluble inflammatory markers, was observed in a murine model of tobacco smoke (TS)-induced lung inflammation. The broad spectrum of reduced inflammatory cells and markers can be due to the strong inhibition of neutrophil extravasation into the lung parenchyma, and/or to a relatively broad protein displacement profile of dnCXCL8 which may compete not only with wtCXCL8 for glycosaminoglycan-binding but possibly also with other related glycosaminoglycan-binding pro-inflammatory chemokines. Overall our results demonstrate that antagonizing CXCL8/glycosaminoglycan binding reduces lung inflammation as well as associated lung tissue damage due to LPS and TS and may therefore be a new therapeutic approach for lung pathologies characterized by a neutrophilic inflammatory phenotype.
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Affiliation(s)
| | - Viktoria Konya
- Institute of Experimental and Clinical Pharmacology, Medical University of Graz, Graz, Austria
| | | | | | | | | | | | | | - Akos Heinemann
- Institute of Experimental and Clinical Pharmacology, Medical University of Graz, Graz, Austria
| | - Andreas J Kungl
- ProtAffin Biotechnologie AG, Graz, Austria; Institute of Pharmaceutical Sciences, University of Graz, Graz, Austria.
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148
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Presicce P, Senthamaraikannan P, Alvarez M, Rueda CM, Cappelletti M, Miller LA, Jobe AH, Chougnet CA, Kallapur SG. Neutrophil recruitment and activation in decidua with intra-amniotic IL-1beta in the preterm rhesus macaque. Biol Reprod 2015; 92:56. [PMID: 25537373 PMCID: PMC4342792 DOI: 10.1095/biolreprod.114.124420] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 09/26/2014] [Accepted: 12/22/2014] [Indexed: 11/01/2022] Open
Abstract
Chorioamnionitis, an infection/inflammation of the fetomaternal membranes, is frequently associated with preterm delivery. The mechanisms of inflammation in chorioamnionitis are poorly understood. We hypothesized that neutrophils recruited to the decidua would be the major producers of proinflammatory cytokines. We injected intra-amniotic (IA) interleukin 1beta (IL-1beta) at ∼80% gestation in rhesus macaque monkeys, Macaca mulatta, delivered the fetuses surgically 24 h or 72 h after IA injections, and investigated the role of immune cells in the chorion-amnion decidua. IA IL-1beta induced a robust infiltration of neutrophils and significant increases of proinflammatory cytokines in the chorioamnion decidua at 24 h after exposure, with a subsequent decrease at 72 h. Neutrophils in the decidua were the major source of tumor necrosis factor alpha (TNFalpha) and IL-8. Interestingly, IA IL-1beta also induced a significant increase in anti-inflammatory indoleamine 2,3-dioxygenase (IDO) expression in the decidua neutrophils. The frequency of regulatory T cells (Tregs) and FOXP3 mRNA expression in the decidua did not change after IA IL-1beta injection. Collectively, our data demonstrate that in this model of sterile chorioamnionitis, the decidua neutrophils cause the inflammation in the gestational tissues but may also act as regulators to dampen the inflammation. These results help to understand the contribution of neutrophils to the pathogenesis of chorioamnionitis-induced preterm labor.
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Affiliation(s)
- Pietro Presicce
- Perinatal Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
| | | | - Manuel Alvarez
- Perinatal Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
| | - Cesar M Rueda
- Perinatal Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio Division of Immunobiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Monica Cappelletti
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Lisa A Miller
- California National Primate Research Center, University of California Davis, Davis, California Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California Davis, Davis, California
| | - Alan H Jobe
- Perinatal Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
| | - Claire A Chougnet
- Perinatal Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio Division of Immunobiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Suhas G Kallapur
- Perinatal Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
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149
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Trybus E, Krol T, Obarzanowski T, Trybus W, Kopacz-Bednarska A, Obarzanowski M. Cytological assessment of the epithelial cells of the nasal mucous membrane after local fluticasone therapy. J Physiol Pharmacol 2015; 66:139-147. [PMID: 25716973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 11/03/2014] [Indexed: 06/04/2023]
Abstract
The majority of cytological studies concern the influence of glucocorticosteroids on cells involved in creating and sustaining inflammation, such as eosinophils or neutrophils. Much less attention is devoted to epithelial cells. It should also be noticed that glucocorticosteroid drugs administered nasally for local action can significantly change the cytological image of the nasal mucous membrane. Therefore, the purpose of this research was to cytologically assess the influence of topical fluticasone therapy on the nasal mucous membrane cells, with special attention for the changes in the morphology of epithelial cells. The research samples were taken from patients with symptoms of chronic rhinitis and suspected allergies. The research was a two-step process. In the first step, a smear was taken from the surface of the nasal mucous membrane of the above-mentioned patients before the start of therapy and the obtained cytological image was compared with a control image of the nasal mucous of healthy people. Step two involved the cytology of the same patients after 4 weeks of fluticasone therapy, applied as a nasal aerosol in two doses of 50 μg to each nostril once per day, in the combined daily dose of 200 μg (for adults and children aged 12 or more). Children aged between 4 and 12 were given a single dose of 50 μg to each nostril once per day, in a daily dose of 100 μg. Based on smears stained according to the Papanicolaou and Pappenheim method, a qualitative and quantitative analysis of changes in the mucous membrane of nasal cells was performed. The cytological assessment of nasal mucous membrane stains of patients with chronic rhinitis before fluticasone treatment enabled a diagnosis of chronic infectious rhinitis, compared through the presence of numerous neutrophils and bacteria. The studied samples did not show significant changes in the morphology of epithelial cells, only a few cells with mild vacuolation changes of the cytoplasm were found. The use of fluticasone, however, caused a significant decrease in the neutrophilia and the appearance of numerous epithelial cells with intensified cytoplasm vacuolation in the sample. The results obtained allow us to conclude that standard fluticasone therapy as administered nasally in aerosol form to patients with diagnosed nonallergic nasal mucous membrane inflammation caused a significant reduction in the inflammation without showing cytological characteristics of damage to the epithelium of the nasal mucous membrane. The intensified vacuolation observed in the cytoplasm of epithelial cells, most prominently in the columnar cells, might suggest the stimulation of autophagic processes.
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Affiliation(s)
- E Trybus
- Department of Cell Biology and Electron Microscopy, Jan Kochanowski University, Kielce, Poland.
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150
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Merali Z, Leung J, Mikulis D, Silver F, Kassner A. Longitudinal assessment of imatinib's effect on the blood-brain barrier after ischemia/reperfusion injury with permeability MRI. Transl Stroke Res 2015; 6:39-49. [PMID: 25146090 DOI: 10.1007/s12975-014-0358-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/23/2014] [Accepted: 07/03/2014] [Indexed: 12/22/2022]
Abstract
Acute ischemic stroke (AIS) often results in degeneration of the blood-brain barrier (BBB), which can lead to vasogenic edema and an increased risk of intracerebral hemorrhage. Imatinib is an agent that may be able to protect the BBB and reduce the risk of the harmful consequences of BBB degeneration. We sought to measure the effect of Imatinib on the BBB after experimental stroke longitudinally in vivo with permeability dynamic contrast-enhanced MRI. Ischemia/reperfusion injury was induced with a transient middle cerebral artery occlusion surgery. Rats were given Imatinib at 2 and 20 h after stroke onset. Post-assessment included neurologic functioning, MR imaging, Evans Blue extravasation, Western blot, and immunohistology assay. Imatinib protected the BBB by 24 h but failed to decrease BBB permeability at an earlier time-point. Imatinib also reduced infarct volume, edema, and improved neurologic functioning by 24 h. Rats treated with Imatinib also had a higher expression of the BBB structural protein Zona ocludens-1 and a reduction in nuclear factor-kappa beta (NF-κβ) activation. Imatinib is a promising agent to protect the BBB after AIS, but its effect on the BBB may not become prominent until 24 h after the onset of ischemia. This finding may help elucidate Imatinib's role in the clinical management of AIS and influence future study designs.
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Affiliation(s)
- Zamir Merali
- Department of Physiology and Experimental Medicine, Hospital for Sick Children, Toronto, ON, Canada
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