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Dussert E, Tourret M, Deracinois B, Duban M, Leclère V, Cudennec B, Ravallec R, Behra-Miellet J. Fluorescent Pseudomonas strains from mid-mountain water able to release antioxidant proteins directly into water. Microbiol Res 2020; 236:126444. [PMID: 32169751 DOI: 10.1016/j.micres.2020.126444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 01/30/2020] [Accepted: 02/21/2020] [Indexed: 11/18/2022]
Abstract
Little is known about fluorescent Pseudomonas and investigations are needed to help us better understand how their species work. The aim was here to mimic what naturally occurs in environmental water containing strains isolated from mid-mountain water samples and identified as Pseudomonas fluorescens by conventional biochemical techniques. Three strains were cultured before being directly inoculated into distilled water. Surprisingly, the three cell-less extracts obtained after spinning the bacterial suspensions showed strong in vitro anti-oxidative effects against superoxide anion and hydroxyl radical but with discrepancies. The extracts obtained were found to contain antioxidant proteins among other stress proteins that were released by viable bacteria. They were identified using tandem/mass spectrometry and showed different profiles in sodium-dodecyl sulfate polyacrylamide gel electrophoresis. Bacterial identification was deepened using 16S ribonucleic acid and genome sequencing analyses to explain the differences observed between strains.
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Affiliation(s)
- Elodie Dussert
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Côte d'Opale, EA 7394 - ICV - Institut Charles Viollette, Villeneuve d'Ascq Cedex, Lille, F-59655, France
| | - Mélissa Tourret
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Côte d'Opale, EA 7394 - ICV - Institut Charles Viollette, Villeneuve d'Ascq Cedex, Lille, F-59655, France
| | - Barbara Deracinois
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Côte d'Opale, EA 7394 - ICV - Institut Charles Viollette, Villeneuve d'Ascq Cedex, Lille, F-59655, France
| | - Matthieu Duban
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Côte d'Opale, EA 7394 - ICV - Institut Charles Viollette, Villeneuve d'Ascq Cedex, Lille, F-59655, France
| | - Valérie Leclère
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Côte d'Opale, EA 7394 - ICV - Institut Charles Viollette, Villeneuve d'Ascq Cedex, Lille, F-59655, France
| | - Benoit Cudennec
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Côte d'Opale, EA 7394 - ICV - Institut Charles Viollette, Villeneuve d'Ascq Cedex, Lille, F-59655, France
| | - Rozenn Ravallec
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Côte d'Opale, EA 7394 - ICV - Institut Charles Viollette, Villeneuve d'Ascq Cedex, Lille, F-59655, France
| | - Josette Behra-Miellet
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Côte d'Opale, EA 7394 - ICV - Institut Charles Viollette, Villeneuve d'Ascq Cedex, Lille, F-59655, France.
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Protective effects of hesperidin against MTX-induced hepatotoxicity in male albino rats. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:1405-1417. [PMID: 32103295 DOI: 10.1007/s00210-020-01843-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/14/2020] [Indexed: 02/07/2023]
Abstract
Hesperidin (HD), a bioflavonoid, has been shown to exert hepatoprotective effects. Our aim is to investigate the possible protective effects of HD against methotrexate (MTX) hepatotoxicity in adult male Sprague-Dawley (SD) rats that were divided into four groups (10 rats/each) and were exposed to MTX with or without HD co-administration for consecutive 28 days. The results showed that HD significantly ameliorated MTX-induced increase in liver enzymes and histopathological changes. Hepatic oxidative stress was suppressed by HD, as evidenced by the decrease in malondialdehyde (MDA), with a concomitant increase in total antioxidant activity (TAC), catalase (CAT), and glutathione (GSH) levels. Moreover, co-administration of HD with MTX remarkably upregulated the expression of Nrf2 and HO-1 compared with the MTX group. By the decrease in nuclear factor-kB (NF-κB) pathway and tumor necrosis factor α (TNF-α), HD obviously attenuated inflammatory response in MTX-lesioned livers. Likewise, the downregulation of P53 by HD could explain its antiapoptotic effects as indicated by increase BCl2 and the significant decrease of caspase-9 mRNA expression as compared with the MTX group. Thus, these findings revealed the hepatoprotective nature of HD against MTX hepatotoxicity by attenuating the pro-inflammatory and apoptotic mediators and improving antioxidant aptitude.
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Mills RH, Wozniak JM, Vrbanac A, Campeau A, Chassaing B, Gewirtz A, Knight R, Gonzalez DJ. Organ-level protein networks as a reference for the host effects of the microbiome. Genome Res 2020; 30:276-286. [PMID: 31992612 PMCID: PMC7050531 DOI: 10.1101/gr.256875.119] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 01/21/2020] [Indexed: 02/07/2023]
Abstract
Connections between the microbiome and health are rapidly emerging in a wide range of diseases. However, a detailed mechanistic understanding of how different microbial communities are influencing their hosts is often lacking. One method researchers have used to understand these effects are germ-free (GF) mouse models. Differences found within the organ systems of these model organisms may highlight generalizable mechanisms that microbiome dysbioses have throughout the host. Here, we applied multiplexed, quantitative proteomics on the brains, spleens, hearts, small intestines, and colons of conventionally raised and GF mice, identifying associations to colonization state in over 7000 proteins. Highly ranked associations were constructed into protein-protein interaction networks and visualized onto an interactive 3D mouse model for user-guided exploration. These results act as a resource for microbiome researchers hoping to identify host effects of microbiome colonization on a given organ of interest. Our results include validation of previously reported effects in xenobiotic metabolism, the innate immune system, and glutamate-associated proteins while simultaneously providing organism-wide context. We highlight organism-wide differences in mitochondrial proteins including consistent increases in NNT, a mitochondrial protein with essential roles in influencing levels of NADH and NADPH, in all analyzed organs of conventional mice. Our networks also reveal new associations for further exploration, including protease responses in the spleen, high-density lipoproteins in the heart, and glutamatergic signaling in the brain. In total, our study provides a resource for microbiome researchers through detailed tables and visualization of the protein-level effects of microbial colonization on several organ systems.
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Affiliation(s)
- Robert H Mills
- Department of Pharmacology, University of California, San Diego, California 92093, USA
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, California 92093, USA
- Department of Pediatrics, and Department of Computer Science and Engineering, University of California, San Diego, California 92093, USA
- Center for Microbiome Innovation, University of California, San Diego, California 92093, USA
| | - Jacob M Wozniak
- Department of Pharmacology, University of California, San Diego, California 92093, USA
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, California 92093, USA
| | - Alison Vrbanac
- Department of Pediatrics, and Department of Computer Science and Engineering, University of California, San Diego, California 92093, USA
| | - Anaamika Campeau
- Department of Pharmacology, University of California, San Diego, California 92093, USA
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, California 92093, USA
| | - Benoit Chassaing
- Center for Inflammation, Immunity and Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia 30303, USA
- Neuroscience Institute, Georgia State University, Atlanta, Georgia 30303, USA
- INSERM, U1016, 75014 Paris, France
- Université de Paris, 75006 Paris, France
| | - Andrew Gewirtz
- Center for Inflammation, Immunity and Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia 30303, USA
| | - Rob Knight
- Department of Pediatrics, and Department of Computer Science and Engineering, University of California, San Diego, California 92093, USA
- Center for Microbiome Innovation, University of California, San Diego, California 92093, USA
| | - David J Gonzalez
- Department of Pharmacology, University of California, San Diego, California 92093, USA
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, California 92093, USA
- Center for Microbiome Innovation, University of California, San Diego, California 92093, USA
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Low-dose curcumin reduced TNBS-associated mucin depleted foci in mice by scavenging superoxide anion and lipid peroxides, rebalancing matrix NO synthase and aconitase activities, and recoupling mitochondria. Inflammopharmacology 2020; 28:949-965. [DOI: 10.1007/s10787-019-00684-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 12/30/2019] [Indexed: 12/24/2022]
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Cross Talk between SigB and PrfA in Listeria monocytogenes Facilitates Transitions between Extra- and Intracellular Environments. Microbiol Mol Biol Rev 2019; 83:83/4/e00034-19. [PMID: 31484692 DOI: 10.1128/mmbr.00034-19] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The foodborne pathogen Listeria monocytogenes can modulate its transcriptome and proteome to ensure its survival during transmission through vastly differing environmental conditions. While L. monocytogenes utilizes a large array of regulators to achieve survival and growth in different intra- and extrahost environments, the alternative sigma factor σB and the transcriptional activator of virulence genes protein PrfA are two key transcriptional regulators essential for responding to environmental stress conditions and for host infection. Importantly, emerging evidence suggests that the shift from extrahost environments to the host gastrointestinal tract and, subsequently, to intracellular environments requires regulatory interplay between σB and PrfA at transcriptional, posttranscriptional, and protein activity levels. Here, we review the current evidence for cross talk and interplay between σB and PrfA and their respective regulons and highlight the plasticity of σB and PrfA cross talk and the role of this cross talk in facilitating successful transition of L. monocytogenes from diverse extrahost to diverse extra- and intracellular host environments.
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Cai X, Yang F, Zhu L, Xia Y, Wu Q, Xue H, Lu Y. Rosmarinic Acid, the Main Effective Constituent of Orthosiphon stamineus, Inhibits Intestinal Epithelial Apoptosis Via Regulation of the Nrf2 Pathway in Mice. Molecules 2019; 24:E3027. [PMID: 31438521 PMCID: PMC6749311 DOI: 10.3390/molecules24173027] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/13/2019] [Accepted: 08/16/2019] [Indexed: 12/30/2022] Open
Abstract
Many studies have shown that Orthosiphon stamineus extract (OE) has antioxidant activity, and we previously reported that OE protects the intestine against injury from a high-fat diet. However, the molecular mechanism underlying this protective effect of OE was unclear. Here, OE was separated according to polarity and molecular weight, and the antioxidant activity of each component was compared. The components with the highest antioxidant activity were analyzed by HPLC, which confirmed that rosmarinic acid (RA) was the main effective constituent in OE. OE and RA were then tested in a mouse high-fat diet-induced intestinal injury model. The antioxidant indices and morphological characteristics of the mouse jejunum were measured, and activation of the nuclear factor E2-related factor 2 (Nrf2) pathway and apoptosis of jejunal epithelial cells were analyzed. Of all the constituents in OE, RA contributed the most. Both RA and OE activated the Nrf2 pathway and increased downstream antioxidant enzyme activity. RA and OE protected the mouse intestine against high-fat diet-induced oxidative stress by preventing intestinal epithelial cell apoptosis via both extracellular and intracellular pathways. Thus, RA, the main effective constituent in OE, inhibits intestinal epithelial apoptosis by regulating the Nrf2 pathway in mice.
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Affiliation(s)
- Xuan Cai
- Shanghai Shenfeng Animal Husbandry and Veterinary Science Technology Co., Ltd., Shanghai 201106, China.
- Institute of Animal Husbandry & Veterinary Science, Shanghai Academy of Agricultural Science, Shanghai 201106, China.
- Shanghai Engineering Research Center of Breeding Pig, Shanghai 201106, China.
| | - Fan Yang
- Biology Department, College of Life and Environment Science, Shanghai Normal University,100 Guilin Road, Shanghai 200234, China
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- Shanghai Collaborative Innovation Center for Biomanufacturing Technology, 130 Meilong Road, Shanghai 200237, China
| | - Lihui Zhu
- Institute of Animal Husbandry & Veterinary Science, Shanghai Academy of Agricultural Science, Shanghai 201106, China
| | - Ye Xia
- Institute of Animal Husbandry & Veterinary Science, Shanghai Academy of Agricultural Science, Shanghai 201106, China
| | - Qingyuan Wu
- Biology Department, College of Life and Environment Science, Shanghai Normal University,100 Guilin Road, Shanghai 200234, China
| | - Huiqin Xue
- Shanghai Shenfeng Animal Husbandry and Veterinary Science Technology Co., Ltd., Shanghai 201106, China.
| | - Yonghong Lu
- Shanghai Shenfeng Animal Husbandry and Veterinary Science Technology Co., Ltd., Shanghai 201106, China.
- Institute of Animal Husbandry & Veterinary Science, Shanghai Academy of Agricultural Science, Shanghai 201106, China.
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Degroote J, Vergauwen H, Van Noten N, Wang W, De Smet S, Van Ginneken C, Michiels J. The Effect of Dietary Quercetin on the Glutathione Redox System and Small Intestinal Functionality of Weaned Piglets. Antioxidants (Basel) 2019; 8:antiox8080312. [PMID: 31426309 PMCID: PMC6720349 DOI: 10.3390/antiox8080312] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/08/2019] [Accepted: 08/11/2019] [Indexed: 12/11/2022] Open
Abstract
Quercetin has been shown to alleviate mucosal damage and modulate the glutathione (GSH) redox system in the colon of rodents. In the current study, we assessed whether quercetin was able to mitigate small intestinal dysfunction in weaned pigs. Here, 224 weaned piglets were fed a diet containing quercetin at either 0, 100, 300, or 900 mg/kg diet until d14 post-weaning, followed by a common basal diet until d42. Eight animals per treatment were sampled at d5 and d14 post-weaning. In these animals, the small intestinal histomorphology, barrier function, and protein abundance of occludin, caspase-3, and proliferating cell nuclear antigen were assessed. None of these parameters were affected, and neither did quercetin improve performance up to d42 post-weaning. The GSH redox system was evaluated in blood, small intestinal mucosa, and liver. Quercetin did not affect the glutathione peroxidase, glutathione reductase, and glutamate–cysteine ligase activity in these tissues. In contrast, the hepatic glutathione transferase (GST) activity was significantly increased by quercetin supplementation at d5 post-weaning of 100, 300, and 900 mg/kg. Importantly, d5 was characterized by a more oxidized GSH redox status. To conclude, dietary quercetin had little effect on the small intestine, but did upregulate hepatic GST in the occurrence of redox disturbance.
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Affiliation(s)
- Jeroen Degroote
- Laboratory of Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Sciences and Aquatic Ecology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
| | - Hans Vergauwen
- Laboratory of Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Noémie Van Noten
- Laboratory of Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Sciences and Aquatic Ecology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Wei Wang
- Laboratory of Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Sciences and Aquatic Ecology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Stefaan De Smet
- Laboratory of Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Sciences and Aquatic Ecology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Chris Van Ginneken
- Laboratory of Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Joris Michiels
- Laboratory of Animal Nutrition and Animal Product Quality (LANUPRO), Department of Animal Sciences and Aquatic Ecology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
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Martinez CAR, Campos FG, Kanno DT, Meneses EC, Matijascic GM, Goto EFK, Pereira JA. Enemas with mesalazine increase the tissue contents of mucins in the colonic mucosa devoid of fecal stream. Acta Cir Bras 2019; 34:e201900406. [PMID: 31038584 PMCID: PMC6583918 DOI: 10.1590/s0102-865020190040000006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 03/17/2019] [Indexed: 12/14/2022] Open
Abstract
Purpose: To evaluate the inflammatory reaction and measure the content of mucins, in the colonic mucosa without fecal stream submit to intervention with mesalazine. Methods: Twenty-four rats were submitted to a left colostomy and a distal mucous fistula and divided into two groups according to euthanasia to be performed two or four weeks. Each group was divided into two subgroups according daily application of enemas containing saline or mesalazine at 1.0 g/kg/day. Colitis was diagnosed by histological analysis and the inflammatory reaction by validated score. Acidic mucins and neutral mucins were determined with the alcian-blue and periodic acid of Schiff techniques, respectively. Sulfomucin and sialomucin were identified by high iron diamine-alcian blue technique. The tissue contents of mucins were quantified by computer-assisted image analysis. Mann-Whitney test was used to analyze the results establishing the level of significance of 5%. Results: Enemas with mesalazine in colonic segments without fecal stream decreased the inflammation score and increased the tissue content of all subtypes of mucins. The increase of tissue content of neutral, acid and sulfomucin was related to the time of intervention. Conclusion: Mesalazine enemas reduce the inflammatory process and preserve the content of mucins in colonic mucosa devoid of fecal stream.
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Affiliation(s)
- Carlos Augusto Real Martinez
- PhD, Associate Professor, Postgraduate Program in Health Sciences, Universidade São Francisco (USF), Bragança Paulista-SP, and Department of Surgery, Universidade Estadual de Campinas (UNICAMP), Campinas-SP, Brazil. Conception and design of the study, statistics analysis, interpretation of data, manuscript preparation and writing, critical revision
| | - Fábio Guilherme Campos
- PhD, Associate Professor, Department of Gastroenterology, Faculty of Medicine, Universidade de São Paulo (USP), Brazil. Interpretation of data, critical revision
| | - Danilo Toshio Kanno
- Fellow Master degree, Assistant Professor, Division of Surgery, Faculty of Medicine, USF, Bragança Paulista-SP, Brazil. Technical procedures, acquisition of data
| | - Eli Cristiano Meneses
- Fellow Master degree, Assistant Professor, Faculty of Pharmacology, USF, Bragança Paulista-SP, Brazil. Technical procedures, acquisition of data
| | - Gabrielle Maira Matijascic
- Graduate student, Faculty of Medicine, USF, Bragança Paulista-SP, Brazil. Technical procedures, acquisition of data
| | - Eduardo Felipe Kim Goto
- Graduate student, Faculty of Medicine, USF, Bragança Paulista-SP, Brazil. Technical procedures, acquisition of data
| | - José Aires Pereira
- PhD, Assistant Professor, Division of Pathology, Faculty of Medicine, USF, Bragança Paulista-SP, Brazil. Histopathological examinations, acquisition and interpretation of data
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Liu J, Wang Y, Liu X, Yuan Q, Zhang Y, Li Y. Novel molecularly imprinted polymer (MIP) multiple sensors for endogenous redox couples determination and their applications in lung cancer diagnosis. Talanta 2019; 199:573-580. [PMID: 30952300 DOI: 10.1016/j.talanta.2019.03.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 02/16/2019] [Accepted: 03/02/2019] [Indexed: 12/27/2022]
Abstract
Multiplex electrochemical sensors for amperometric detection of glutathione disulfide (GSSG), glutathione (GSH), cysteine (Cys), cystine (Cyss), β-nicotinamide adenine dinucleotide phosphate (NADP+) and coenzyme II reduced tetrasodium salt (NADPH) were developed, in which analysis of Cyss, NADP+ and NADPH are the first report using this sensing system. Specificity of these sensors were ensured by a layer of molecularly imprinted polymer (MIP) which was electropolymerized in situ with the analytes as template. All the sensors were tested with standard buffers and mouse blood samples, showing satisfactory performance towards the corresponding analytes. Dynamic concentration for the six analytes was in the range of 10-11-10-8 mol/L with the detection limit down to 20 pmol/L. In addition, artificially synthesized MIP film on the electrodes allowed for good selectivity and stability. Real blood sample measurement proved that the sensors owned decent accuracy with recovery value ranging from 92%~112%. More importantly, blood samples from lung cancer patients and healthy donors were assayed by using the proposed sensors. Redox potentials (Ehc) were calculated based on the contents of these endogenic substances, which were utilized to reflect the health status of human body and help diagnose lung cancer. The levels of GSH, NADPH and the absolute value of Ehc(GSH/GSSG) in patients with lung cancer are significantly lower (P < 0.01) than those in healthy people, while the contents of GSSG (P < 0.01) are higher. The blood test results suggested that the content of GSH, NADPH, NADP+ and Ehc(GSH/GSSG) might serve as biomarkers for lung cancer prediagnosis. These novel sensors for liquid biospy of cancer have cost-benefit and scalability advantage over current techniques, potentially enabling broader clinical access and efficient population screening.
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Affiliation(s)
- Jie Liu
- College of Science, Harbin Institute of Technology, Shenzhen 518055, China; Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi 832000, China
| | - Yuli Wang
- The first affiliated hospital of the medical college of Shihezi University, Shihezi 832000, China
| | - Xiaoxue Liu
- College of Science, Harbin Institute of Technology, Shenzhen 518055, China
| | - Qunhui Yuan
- College of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Yang Zhang
- College of Science, Harbin Institute of Technology, Shenzhen 518055, China.
| | - Yingchun Li
- College of Science, Harbin Institute of Technology, Shenzhen 518055, China; Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi 832000, China.
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Eki̇nci̇-Akdemi̇r FN, Yildirim S, Kandemi̇r FM, Gülçi̇n İ, Küçükler S, Sağlam YS, Yakan S. The effects of casticin and myricetin on liver damage induced by methotrexate in rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2018; 21:1281-1288. [PMID: 30627373 PMCID: PMC6312684 DOI: 10.22038/ijbms.2018.29922.7217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 06/28/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVES In this study, we evaluated the therapeutic effects of casticin and myricetin on liver damage induced by methotrexate in rats. MATERIALS AND METHODS Thirty-six male rats were used for the study and divided into 6 groups: control, methotrexate, casticin, myricetin, casticin+methotrexate, and myricetin+methotrexate. It was performed by methotrexate (20 mg/kg single dose, IP) in methotrexate, casticin+methotrexate and myricetin+methotrexate groups. Casticin 200 mg/kg dose was given to casticin and casticin+methotrexate groups. Myricetin 50 mg/kg dose was given to myricetin and myriceytin+methotrexate groups. At the end of the experiment, liver tissues were removed for the purpose of histopathological, biochemical and immunohistochemical assessments. RESULTS In our study, we have detected that MDA levels increased and activities of antioxidant enzymes SOD, CAT, and GPX decreased in the methotrexate group compared to the other groups, but the level of MDA decreased and activities of these enzymes increased in casticin+methotrexate and myricetin+methotrexate groups compared to the methotrexate group. In immunohistochemical examinations of control, casticin and myricetin groups in liver tissues no caspase-3 and 8-OHdG expressions were observed. In the MTX group, caspase-3 and 8-OHdG expressions were seen at the severe levels. Caspase-3 and 8-OHdG expressions were mild in hepatocytes in the casticin+methotrexate and myricetin+methotrexate groups. When the liver tissues of the rats in the methotrexate group were examined, severe pathological damage was detected both in the parietal region and in the portal region. CONCLUSION By looking at these results, we can say that casticin and myricetin are effective against liver damage induced by methotrexate.
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Affiliation(s)
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | | | - İlhami Gülçi̇n
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Sefa Küçükler
- Department of Biochemistry, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Yavuz Selim Sağlam
- Department of Pathology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Selvinaz Yakan
- Department of Animal Health, School of Eleşkirt Celal Oruç, Ağrı İbrahim Çeçen University, Ağrı, Turkey
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Moine L, Rivoira M, Díaz de Barboza G, Pérez A, Tolosa de Talamoni N. Glutathione depleting drugs, antioxidants and intestinal calcium absorption. World J Gastroenterol 2018; 24:4979-4988. [PMID: 30510373 PMCID: PMC6262252 DOI: 10.3748/wjg.v24.i44.4979] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/24/2018] [Accepted: 11/02/2018] [Indexed: 02/06/2023] Open
Abstract
Glutathione (GSH) is a tripeptide that constitutes one of the main intracellular reducing compounds. The normal content of GSH in the intestine is essential to optimize the intestinal Ca2+ absorption. The use of GSH depleting drugs such as DL-buthionine-S,R-sulfoximine, menadione or vitamin K3, sodium deoxycholate or diets enriched in fructose, which induce several features of the metabolic syndrome, produce inhibition of the intestinal Ca2+ absorption. The GSH depleting drugs switch the redox state towards an oxidant condition provoking oxidative/nitrosative stress and inflammation, which lead to apoptosis and/or autophagy of the enterocytes. Either the transcellular Ca2+ transport or the paracellular Ca2+ route are altered by GSH depleting drugs. The gene and/or protein expression of transporters involved in the transcellular Ca2+ pathway are decreased. The flavonoids quercetin and naringin highly abrogate the inhibition of intestinal Ca2+ absorption, not only by restoration of the GSH levels in the intestine but also by their anti-apoptotic properties. Ursodeoxycholic acid, melatonin and glutamine also block the inhibition of Ca2+ transport caused by GSH depleting drugs. The use of any of these antioxidants to ameliorate the intestinal Ca2+ absorption under oxidant conditions associated with different pathologies in humans requires more investigation with regards to the safety, pharmacokinetics and pharmacodynamics of them.
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Affiliation(s)
- Luciana Moine
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
| | - María Rivoira
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
| | - Gabriela Díaz de Barboza
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
| | - Adriana Pérez
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
| | - Nori Tolosa de Talamoni
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
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63
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Short SP, Pilat JM, Williams CS. Roles for selenium and selenoprotein P in the development, progression, and prevention of intestinal disease. Free Radic Biol Med 2018; 127:26-35. [PMID: 29778465 PMCID: PMC6168360 DOI: 10.1016/j.freeradbiomed.2018.05.066] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/09/2018] [Accepted: 05/16/2018] [Indexed: 02/07/2023]
Abstract
Selenium (Se) is a micronutrient essential to human health, the function of which is mediated in part by incorporation into a class of proteins known as selenoproteins (SePs). As many SePs serve antioxidant functions, Se has long been postulated to protect against inflammation and cancer development in the gut by attenuating oxidative stress. Indeed, numerous studies over the years have correlated Se levels with incidence and severity of intestinal diseases such as inflammatory bowel disease (IBD) and colorectal cancer (CRC). Similar results have been obtained with the Se transport protein, selenoprotein P (SELENOP), which is decreased in the plasma of both IBD and CRC patients. While animal models further suggest that decreases in Se or SELENOP augment colitis and intestinal tumorigenesis, large-scale clinical trials have yet to show a protective effect in patient populations. In this review, we discuss the function of Se and SELENOP in intestinal diseases and how research into these mechanisms may impact patient treatment.
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Affiliation(s)
- Sarah P Short
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA; Program in Cancer Biology, Vanderbilt University, Nashville, TN, USA
| | - Jennifer M Pilat
- Program in Cancer Biology, Vanderbilt University, Nashville, TN, USA
| | - Christopher S Williams
- Department of Medicine, Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA; Program in Cancer Biology, Vanderbilt University, Nashville, TN, USA; Vanderbilt University School of Medicine, Vanderbilt University, Nashville, TN, USA; Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA; Veterans Affairs Tennessee Valley HealthCare System, Nashville, TN, USA.
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64
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Siddiqi A, Saidullah B, Sultana S. Anti-carcinogenic effect of hesperidin against renal cell carcinoma by targeting COX-2/PGE2 pathway in Wistar rats. ENVIRONMENTAL TOXICOLOGY 2018; 33:1069-1077. [PMID: 30098279 DOI: 10.1002/tox.22626] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 07/02/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
The present study was designed to evaluate the protective effects of hesperidin, a flavonoid on DEN initiated and Fe-NTA promoted renal carcinogenesis in Wistar rats. Renal cancer was initiated by a single i.p. injection of DEN (200 mg/kg b.wt.) and promoted with Fe-NTA (9 mg Fe/kg b.wt. i.p.) twice a week for 16 weeks. Rats were simultaneously administered with hesperidin (100 and 200 mg/kg b.wt.) for 16 consecutive weeks. The chemopreventive effect of hesperidin was assessed in terms of antioxidant activities, renal function, PGE2 level, and the expressions of COX-2 and VEGF. Hesperidin decreased the DEN and Fe-NTA induced lipid peroxidation, improved the renal function (by decreasing the levels of BUN, creatinine, and KIM-1) and restored the renal antioxidant armory (GSH, GPx, GR, SOD, and catalase). Hesperidin was also found to decrease the level of PGE2 and downregulate the expressions of COX-2 and VEGF. Histological findings further revealed the protective effects of hesperidin against DEN and Fe-NTA induced kidney damage. The result of our present findings suggest that hesperidin may be a promising modulator in preventing renal cancer possibly by virtue of its ability to alleviate oxidative stress and inhibit COX-2/PGE2 pathway.
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Affiliation(s)
- Aisha Siddiqi
- Discipline of Life Sciences, School of Sciences, Indira Gandhi National Open University, New Delhi, India
| | - Bano Saidullah
- Discipline of Life Sciences, School of Sciences, Indira Gandhi National Open University, New Delhi, India
| | - Sarwat Sultana
- Section of Molecular Carcinogenesis and Chemoprevention, Department of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
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65
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Diana D, Ismaya WT, Meidianto VF, Tandrasasmita OM, Tjandrawinata RR, Rachmawati H. Bioconjugation of Captopril-Light Subunit of Agaricus bisporus Mushroom Tyrosinase: Characterization and Potential Use as a Drug Carrier for Oral Delivery. Biol Pharm Bull 2018; 41:1837-1842. [PMID: 30259884 DOI: 10.1248/bpb.b18-00553] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We show that a lectin like protein from the mushroom Agaricus bisporus (LSMT) is capable to permeate the epithelial monolayer barrier of the intestine ex vivo. The protein is not toxic or immunogenic upon prolonged administration and elevated dose in mice. Thus, it could be a candidate as a drug carrier for oral administration. However, its permeability should be tested after the protein has been modified, mimicking the condition in which it is used as a drug carrier. The protein was conjugated to captopril, the selected model of a Biopharmaceutical Classification System (BCS) class III drug, with high solubility but poor permeability. The drug was conjugated to LSMT that had been modified with 4-succinimidyloxycarbonyl-alpha-methyl-2-pyridyldithiotoluene (SMPT) as a linker. The success of LSMT modification was confirmed with TLC and MS; the latter also indicated the amount of captopril molecule linked. The modified LSMT could permeate through the intestinal monolayer barrier, and thus could be absorbed in the intestine after modification. The modified protein appears to remain stable after incubation in simulated gastrointestinal fluids. This pioneering work provides an essential basis for further development of the protein as a drug carrier for oral administration.
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Affiliation(s)
- Diana Diana
- Research group of Pharmaceutics, School of Pharmacy, Bandung Institute of Technology
| | | | | | | | | | - Heni Rachmawati
- Research group of Pharmaceutics, School of Pharmacy, Bandung Institute of Technology.,Research Center for Nanosciences and Nanotechnology, Bandung Institute of Technology
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66
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Ji Y, Dai Z, Sun S, Ma X, Yang Y, Tso P, Wu G, Wu Z. Hydroxyproline Attenuates Dextran Sulfate Sodium‐Induced Colitis in Mice: Involvment of the NF‐κB Signaling and Oxidative Stress. Mol Nutr Food Res 2018; 62:e1800494. [DOI: 10.1002/mnfr.201800494] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 08/02/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Yun Ji
- State Key Laboratory of Animal Nutrition Department of Animal Nutrition and Feed Science China Agricultural University Beijing China 100193
| | - Zhaolai Dai
- State Key Laboratory of Animal Nutrition Department of Animal Nutrition and Feed Science China Agricultural University Beijing China 100193
| | - Shiqiang Sun
- State Key Laboratory of Animal Nutrition Department of Animal Nutrition and Feed Science China Agricultural University Beijing China 100193
| | - Xiaoshi Ma
- State Key Laboratory of Animal Nutrition Department of Animal Nutrition and Feed Science China Agricultural University Beijing China 100193
| | - Ying Yang
- State Key Laboratory of Animal Nutrition Department of Animal Nutrition and Feed Science China Agricultural University Beijing China 100193
| | - Patrick Tso
- Department of Pathology and Laboratory Medicine Metabolic Diseases Institute University of Cincinnati Cincinnati Ohio USA
| | - Guoyao Wu
- State Key Laboratory of Animal Nutrition Department of Animal Nutrition and Feed Science China Agricultural University Beijing China 100193
- Department of Animal Science Texas A&M University College Station TX 77843 USA
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition Department of Animal Nutrition and Feed Science China Agricultural University Beijing China 100193
- State Key Laboratory of Animal Nutrition China Agricultural University Beijing 100193 P. R. China
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67
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Ganda Mall JP, Löfvendahl L, Lindqvist CM, Brummer RJ, Keita ÅV, Schoultz I. Differential effects of dietary fibres on colonic barrier function in elderly individuals with gastrointestinal symptoms. Sci Rep 2018; 8:13404. [PMID: 30194322 PMCID: PMC6128877 DOI: 10.1038/s41598-018-31492-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 08/17/2018] [Indexed: 02/08/2023] Open
Abstract
Gastrointestinal problems are common in elderly and often associated with psychological distress and increased levels of corticotrophin-releasing hormone, a hormone known to cause mast cell (MC) degranulation and perturbed intestinal barrier function. We investigated if dietary fibres (non-digestible polysaccharides [NPS]) could attenuate MC-induced colonic hyperpermeability in elderly with gastrointestinal (GI) symptoms. Colonic biopsies from elderly with diarrhoea and/or constipation (n = 18) and healthy controls (n = 19) were mounted in Ussing chambers and pre-stimulated with a yeast-derived beta (β)-glucan (0.5 mg/ml) or wheat-derived arabinoxylan (0.1 mg/ml) before the addition of the MC-degranulator Compound (C) 48/80 (10 ng/ml). Permeability markers were compared pre and post exposure to C48/80 in both groups and revealed higher baseline permeability in elderly with GI symptoms. β-glucan significantly attenuated C48/80-induced hyperpermeability in elderly with GI symptoms but not in healthy controls. Arabinoxylan reduced MC-induced paracellular and transcellular hyperpermeability across the colonic mucosa of healthy controls, but did only attenuate transcellular permeability in elderly with GI symptoms. Our novel findings indicate that NPS affect the intestinal barrier differently depending on the presence of GI symptoms and could be important in the treatment of moderate constipation and/or diarrhoea in elderly.
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Affiliation(s)
- J P Ganda Mall
- Nutrition-Gut-Brain Interactions Research Centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.,Nutrition and physical activity research centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - L Löfvendahl
- Nutrition-Gut-Brain Interactions Research Centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - C M Lindqvist
- Nutrition-Gut-Brain Interactions Research Centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - R J Brummer
- Nutrition-Gut-Brain Interactions Research Centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Å V Keita
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - I Schoultz
- Nutrition-Gut-Brain Interactions Research Centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden. .,Nutrition and physical activity research centre, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
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68
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Ansari FA, Khan AA, Mahmood R. Protective effect of carnosine and N-acetylcysteine against sodium nitrite-induced oxidative stress and DNA damage in rat intestine. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:19380-19392. [PMID: 29728968 DOI: 10.1007/s11356-018-2133-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
The widespread use of sodium nitrite (NaNO2) as food preservative, rampant use of nitrogenous fertilizers for agricultural practices, and improper disposal of nitrogenous wastes have drastically increased human exposure to high nitrite levels causing various health disorders and death. In the present study, the protective effect of carnosine and N-acetylcysteine (NAC) against NaNO2-induced intestinal toxicity in rats was investigated. Animals were given a single acute oral dose of NaNO2 at 60 mg/kg body weight with or without prior administration of either carnosine at 100 mg/kg body weight/day for 7 days or NAC at 100 mg/kg body weight/day for 5 days. Rats were killed after 24 h, and intestinal preparations were used for the evaluation of biochemical alterations and histological abrasions. Administration of NaNO2 alone decreased the activities of intestinal brush border membrane and metabolic enzymes and significantly weakened the anti-oxidant defense system. DNA damage was also evident as observed by increased DNA-protein crosslinking and fragmentation. However, prior administration of carnosine or NAC significantly ameliorated NaNO2-induced damage in intestinal cells. Histological studies support these biochemical results, showing intestinal damage in NaNO2-treated animals and reduced tissue injury in the combination groups. The intrinsic anti-oxidant properties of carnosine and NAC must have contributed to the observed mitigation of nitrite-induced metabolic alterations and oxidative damage. Based on further validation from clinical trials, carnosine and NAC can potentially be used as chemo-preventive agents against NaNO2 toxicity.
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Affiliation(s)
- Fariheen Aisha Ansari
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, UP, 202002, India
| | - Aijaz Ahmed Khan
- Department of Anatomy, Faculty of Medicine, J. N. Medical College, Aligarh Muslim University, Aligarh, UP, 202002, India
| | - Riaz Mahmood
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, UP, 202002, India.
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69
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Reese AT, Cho EH, Klitzman B, Nichols SP, Wisniewski NA, Villa MM, Durand HK, Jiang S, Midani FS, Nimmagadda SN, O'Connell TM, Wright JP, Deshusses MA, David LA. Antibiotic-induced changes in the microbiota disrupt redox dynamics in the gut. eLife 2018; 7:35987. [PMID: 29916366 PMCID: PMC6008055 DOI: 10.7554/elife.35987] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/26/2018] [Indexed: 12/18/2022] Open
Abstract
How host and microbial factors combine to structure gut microbial communities remains incompletely understood. Redox potential is an important environmental feature affected by both host and microbial actions. We assessed how antibiotics, which can impact host and microbial function, change redox state and how this contributes to post-antibiotic succession. We showed gut redox potential increased within hours of an antibiotic dose in mice. Host and microbial functioning changed under treatment, but shifts in redox potentials could be attributed specifically to bacterial suppression in a host-free ex vivo human gut microbiota model. Redox dynamics were linked to blooms of the bacterial family Enterobacteriaceae. Ecological succession to pre-treatment composition was associated with recovery of gut redox, but also required dispersal from unaffected gut communities. As bacterial competition for electron acceptors can be a key ecological factor structuring gut communities, these results support the potential for manipulating gut microbiota through managing bacterial respiration. The gut is home to a large and diverse community of bacteria and other microbes, known as the gut microbiota. The makeup of this community is important for the health of both the host and its residents. For instance, many gut bacteria help to digest food or keep disease-causing bacteria in check. In return, the host provides them with nutrients. When this balance is disturbed, the host is exposed to risks such as infections. In particular, treatments with antibiotics that kill gut bacteria can lead to side effects like diarrhea, because the gut becomes recolonized with harmful bacteria including Clostridium difficile and Salmonella. Reese et al. have now investigated what happens to the gut environment after antibiotic treatment and how the gut microbiota recovers. Mice treated with broad-spectrum antibiotics showed an increase in the “redox potential” of their gut environment. Redox potential captures a number of measures of the chemical makeup of an environment, and provides an estimate for how efficiently some bacteria in that environment can grow. Some of the change in redox potential came from the host’s own immune system releasing chemicals as it reacted to the effects of the treatment. However, Reese et al. found that treating gut bacteria in an artificial gut – which has no immune system – also increased the redox potential. This experiment suggests that bacteria actively shape their chemical environment in the gut. After the treatment, bacteria that thrive under high redox potentials, which include some disease-causing species, recovered first and fastest. This, in turn, helped to bring redox potential back to how it was before the treatment. Although the gut’s chemical environment recovered, some bacterial species were wiped out by the antibiotic treatment. The microbiota only returned to its previous state when the treated mice were housed together with non-treated mice. This was expected because mice that live together commonly exchange microbes, for instance by eating each other’s feces, and the treated mice received new species to replenish their microbiota. These findings are important because they show that the chemical environment shapes and is shaped by the bacterial communities in the gut. Future research may investigate if altering redox potential in the gut could help to keep the microbiota healthier in infections and diseases of the digestive tract.
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Affiliation(s)
- Aspen T Reese
- Department of Biology, Duke University, Durham, United States.,Department of Molecular Genetics and Microbiology, Duke University, Durham, United States
| | - Eugenia H Cho
- Department of Bioengineering, University of Pennsylvania, Philadelphia, United States
| | - Bruce Klitzman
- Department of Surgery, Duke University Medical Center, Durham, United States
| | | | | | - Max M Villa
- Department of Molecular Genetics and Microbiology, Duke University, Durham, United States
| | - Heather K Durand
- Department of Molecular Genetics and Microbiology, Duke University, Durham, United States
| | - Sharon Jiang
- Department of Molecular Genetics and Microbiology, Duke University, Durham, United States
| | - Firas S Midani
- Program in Computational Biology and Bioinformatics, Duke University, Durham, United States
| | - Sai N Nimmagadda
- Department of Biomedical Engineering, Duke University, Durham, United States
| | - Thomas M O'Connell
- Department of Otolaryngology-Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, United States
| | - Justin P Wright
- Department of Biology, Duke University, Durham, United States
| | - Marc A Deshusses
- Department of Civil and Environmental Engineering, Duke University, Durham, United States
| | - Lawrence A David
- Department of Molecular Genetics and Microbiology, Duke University, Durham, United States.,Program in Computational Biology and Bioinformatics, Duke University, Durham, United States.,Department of Biomedical Engineering, Duke University, Durham, United States.,Center for Genomic and Computational Biology, Duke University, Durham, United States
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70
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Million M, Tomas J, Wagner C, Lelouard H, Raoult D, Gorvel JP. New insights in gut microbiota and mucosal immunity of the small intestine. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.humic.2018.01.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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71
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Liu N, Ma X, Luo X, Zhang Y, He Y, Dai Z, Yang Y, Wu G, Wu Z. l-Glutamine Attenuates Apoptosis in Porcine Enterocytes by Regulating Glutathione-Related Redox Homeostasis. J Nutr 2018; 148:526-534. [PMID: 29659951 DOI: 10.1093/jn/nxx062] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 12/06/2017] [Indexed: 12/18/2022] Open
Abstract
Background Programmed cell death plays a fundamental role in intestinal development and mucosal homeostasis. Dysregulation of these processes is associated with an impaired intestinal-mucosal barrier, reduced nutrient absorption, and initiation and progression of intestinal diseases. 4-Hydroxy-2-nonenal (4-HNE), a product of lipid peroxidation, is commonly used to induce oxidative stress in cells. l-Glutamine is known to protect cells from apoptosis. However, the underlying mechanisms are largely unknown. Objective This study was conducted to test the hypothesis that l-glutamine attenuates 4-HNE-induced apoptosis by modulating glutathione (GSH) and thioredoxin (TXN) antioxidant systems and the expression of genes involved in 4-HNE metabolism in enterocytes. Methods Intestinal porcine epithelial cell line 1 (IPEC-1) cells were cultured with or without 4-HNE (30 μmol/L) in the presence of 0.05 or 0.25 mmol l-glutamine/L (a physiological concentration in the lumen of the small intestine) for indicated time periods. Cell viability, abundances of apoptotic proteins, mitochondrial membrane depolarization, production of reactive oxygen species (ROS) and GSH, and expression of genes involved in the biosynthesis of GSH, thioredoxin, and 4-HNE metabolism were determined. Results Compared with basal medium containing 0.05 mmol l-glutamine/L, 4-HNE enhanced apoptosis by 19.6% (P < 0.05) in a caspase-3-dependent manner. This effect was accompanied by elevated intracellular ROS production (39.5% and 85.3% for 2- and 4-h treatment, respectively), increased mitochondrial depolarization by 80%, and decreased intracellular GSH concentrations by 17.7%. These effects of 4-HNE were reduced by 0.25 mmol l-glutamine/L. Further study showed that the protective effect of l-glutamine was associated with the enhanced expression of genes involved in GSH production (including GCLC, GCLM, GSR, CBS, and CTH) by 3.9-14-fold, as well as genes involved in 4-HNE metabolism [e.g., glutathione S-transferase A (GSTA)1 and GSTA4] by 1.9-7.2-fold. The mRNA levels for ADH5, AKR1C1, AKR1A1, and TXNRD1 were enhanced 1.4-8.8-fold by 4-HNE but were not changed in cells co-treated with 4-HNE and l-glutamine. Conclusion These findings indicate that l-glutamine attenuates 4-HNE-induced apoptosis by regulating GSH-related redox homeostasis and enhancing GSTA-mediated metabolism in enterocytes.
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Affiliation(s)
- Ning Liu
- State Key Laboratory of Animal Nutrition and Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China
| | - Xiaoshi Ma
- State Key Laboratory of Animal Nutrition and Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China
| | - Xuan Luo
- State Key Laboratory of Animal Nutrition and Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China
| | - Yunchang Zhang
- State Key Laboratory of Animal Nutrition and Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China
| | - Yu He
- State Key Laboratory of Animal Nutrition and Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China
| | - Zhaolai Dai
- State Key Laboratory of Animal Nutrition and Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China
| | - Ying Yang
- State Key Laboratory of Animal Nutrition and Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China
| | - Guoyao Wu
- State Key Laboratory of Animal Nutrition and Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China.,Department of Animal Science, Texas A&M University, College Station, TX
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition and Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100193, PR China
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72
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Ghosh S, Roy P, Karmodak N, Jemmis ED, Mugesh G. Nanoisozymes: Crystal-Facet-Dependent Enzyme-Mimetic Activity of V 2 O 5 Nanomaterials. Angew Chem Int Ed Engl 2018; 57:4510-4515. [PMID: 29424075 DOI: 10.1002/anie.201800681] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Indexed: 01/30/2023]
Abstract
Nanomaterials with enzyme-like activity (nanozymes) attract significant interest owing to their applications in biomedical research. Particularly, redox nanozymes that exhibit glutathione peroxidase (GPx)-like activity play important roles in cellular signaling by controlling the hydrogen peroxide (H2 O2 ) level. Herein we report, for the first time, that the redox properties and GPx-like activity of V2 O5 nanozyme depends not only on the size and morphology, but also on the crystal facets exposed on the surface within the same crystal system of the nanomaterials. These results suggest that the surface of the nanomaterials can be engineered to fine-tune their redox properties to act as "nanoisozymes" for specific biological applications.
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Affiliation(s)
- Sourav Ghosh
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Punarbasu Roy
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Naiwrit Karmodak
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Eluvathingal D Jemmis
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore-, 560012, India
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73
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Ghosh S, Roy P, Karmodak N, Jemmis ED, Mugesh G. Nanoisozymes: Crystal-Facet-Dependent Enzyme-Mimetic Activity of V2
O5
Nanomaterials. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800681] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sourav Ghosh
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
| | - Punarbasu Roy
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
| | - Naiwrit Karmodak
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
| | - Eluvathingal D. Jemmis
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore- 560012 India
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74
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Ren H, Meng Q, Yepuri N, Du X, Sarpong JO, Cooney RN. Protective effects of glutathione on oxidative injury induced by hydrogen peroxide in intestinal epithelial cells. J Surg Res 2018; 222:39-47. [DOI: 10.1016/j.jss.2017.09.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/21/2017] [Accepted: 09/28/2017] [Indexed: 12/22/2022]
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75
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Dutta A, Gupta ML, Verma S. Podophyllotoxin and rutin in combination prevents oxidative stress mediated cell death and advances revival of mice gastrointestine following lethal radiation injury. Free Radic Res 2018; 52:103-117. [DOI: 10.1080/10715762.2017.1418982] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ajaswrata Dutta
- Division of Radioprotective Drug Development Research, Institute of Nuclear Medicine and Allied Sciences (INMAS) Defence Research and Development Organization (DRDO), Delhi, India
| | - Manju Lata Gupta
- Division of Radioprotective Drug Development Research, Institute of Nuclear Medicine and Allied Sciences (INMAS) Defence Research and Development Organization (DRDO), Delhi, India
| | - Savita Verma
- Division of Radioprotective Drug Development Research, Institute of Nuclear Medicine and Allied Sciences (INMAS) Defence Research and Development Organization (DRDO), Delhi, India
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76
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Yuksel M, Ates I, Kaplan M, Arikan MF, Ozin YO, Kilic ZMY, Topcuoglu C, Kayacetin E. Is Oxidative Stress Associated with Activation and Pathogenesis of Inflammatory Bowel Disease? J Med Biochem 2017; 36:341-348. [PMID: 30581331 PMCID: PMC6294084 DOI: 10.1515/jomb-2017-0013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 03/06/2017] [Indexed: 11/20/2022] Open
Abstract
Background We aimed to determine the levels of total antioxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI) and paraoxonase1/arylesterase levels in inflammatory bowel disease (IBD), and the relation be - tween these molecules and the activity index of the disease.
Methods Eighty IBD patients (ulcerative colitis (UC)/Crohn disease (CD) 40/40) and 80 control group participants were included in the study. Oxidative stress parameters were measured using the colorimetric method. As disease activity indexes, the endoscopic activity index (EAI) was used for UC and the CD activity index (CDAI) was used for CD. Results In IBD patients, mean TAS (1.3±0.2 vs 1.9±0.2, respectively; p<0.001) and arylesterase (963.9±232.2 vs 1252.9±275, respectively; p<0.001) levels were found to be lower and TOS level (5.6±1.6 vs 4.0±1.0, respectively; p<0.001) and OSI rate (4.5±1.6 vs 2.2±0.8, respectively; p<0.001) were found to be higher compared to the control group. A strong positive correlation was found between EAI and TOS levels (r=0.948, p<0.001) and OSI rate (r=0.894, p<0.001) for UC patients. A very strong positive correlation was found between EAI and TOS levels (r=0.964, p<0.001) and OSI rate (r=0.917, p<0.001) for CD patients. It was found in a stepwise regression model that C-reactive protein, OSI and arylesterase risk factors were predictors of IBD compared to the control group. Conclusion: Increased oxidative stress level in IBD patients and the detection of OSI rate as an independent predictor for disease activity indexes lead to the idea that oxidative stress might be related to the pathogenesis of IBD.
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Affiliation(s)
- Mahmut Yuksel
- Turkey Yuksek Ihtisas Training and Research Hospital, Department of GastroenterologyAnkara, Turkey
| | - Ihsan Ates
- Ankara Numune Training and Research Hospital, Department of Internal MedicineAnkara, Turkey
| | - Mustafa Kaplan
- Turkey Yuksek Ihtisas Training and Research Hospital, Department of GastroenterologyAnkara, Turkey
| | - Mehmet Fettah Arikan
- Ankara Numune Training and Research Hospital, Department of Internal MedicineAnkara, Turkey
| | - Yasemin Ozderin Ozin
- Turkey Yuksek Ihtisas Training and Research Hospital, Department of GastroenterologyAnkara, Turkey
| | - Zeki Mesut Yalin Kilic
- Turkey Yuksek Ihtisas Training and Research Hospital, Department of GastroenterologyAnkara, Turkey
| | - Canan Topcuoglu
- Ankara Numune Training and Research Hospital, Department of BiochemistryAnkara, Turkey
| | - Ertugrul Kayacetin
- Turkey Yuksek Ihtisas Training and Research Hospital, Department of GastroenterologyAnkara, Turkey
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Egea J, Fabregat I, Frapart YM, Ghezzi P, Görlach A, Kietzmann T, Kubaichuk K, Knaus UG, Lopez MG, Olaso-Gonzalez G, Petry A, Schulz R, Vina J, Winyard P, Abbas K, Ademowo OS, Afonso CB, Andreadou I, Antelmann H, Antunes F, Aslan M, Bachschmid MM, Barbosa RM, Belousov V, Berndt C, Bernlohr D, Bertrán E, Bindoli A, Bottari SP, Brito PM, Carrara G, Casas AI, Chatzi A, Chondrogianni N, Conrad M, Cooke MS, Costa JG, Cuadrado A, My-Chan Dang P, De Smet B, Debelec-Butuner B, Dias IHK, Dunn JD, Edson AJ, El Assar M, El-Benna J, Ferdinandy P, Fernandes AS, Fladmark KE, Förstermann U, Giniatullin R, Giricz Z, Görbe A, Griffiths H, Hampl V, Hanf A, Herget J, Hernansanz-Agustín P, Hillion M, Huang J, Ilikay S, Jansen-Dürr P, Jaquet V, Joles JA, Kalyanaraman B, Kaminskyy D, Karbaschi M, Kleanthous M, Klotz LO, Korac B, Korkmaz KS, Koziel R, Kračun D, Krause KH, Křen V, Krieg T, Laranjinha J, Lazou A, Li H, Martínez-Ruiz A, Matsui R, McBean GJ, Meredith SP, Messens J, Miguel V, Mikhed Y, Milisav I, Milković L, Miranda-Vizuete A, Mojović M, Monsalve M, Mouthuy PA, Mulvey J, Münzel T, Muzykantov V, Nguyen ITN, Oelze M, Oliveira NG, Palmeira CM, Papaevgeniou N, Pavićević A, Pedre B, Peyrot F, Phylactides M, Pircalabioru GG, Pitt AR, Poulsen HE, Prieto I, Rigobello MP, Robledinos-Antón N, Rodríguez-Mañas L, Rolo AP, Rousset F, Ruskovska T, Saraiva N, Sasson S, Schröder K, Semen K, Seredenina T, Shakirzyanova A, Smith GL, Soldati T, Sousa BC, Spickett CM, Stancic A, Stasia MJ, Steinbrenner H, Stepanić V, Steven S, Tokatlidis K, Tuncay E, Turan B, Ursini F, Vacek J, Vajnerova O, Valentová K, Van Breusegem F, Varisli L, Veal EA, Yalçın AS, Yelisyeyeva O, Žarković N, Zatloukalová M, Zielonka J, Touyz RM, Papapetropoulos A, Grune T, Lamas S, Schmidt HHHW, Di Lisa F, Daiber A. European contribution to the study of ROS: A summary of the findings and prospects for the future from the COST action BM1203 (EU-ROS). Redox Biol 2017; 13:94-162. [PMID: 28577489 PMCID: PMC5458069 DOI: 10.1016/j.redox.2017.05.007] [Citation(s) in RCA: 202] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 05/08/2017] [Indexed: 12/12/2022] Open
Abstract
The European Cooperation in Science and Technology (COST) provides an ideal framework to establish multi-disciplinary research networks. COST Action BM1203 (EU-ROS) represents a consortium of researchers from different disciplines who are dedicated to providing new insights and tools for better understanding redox biology and medicine and, in the long run, to finding new therapeutic strategies to target dysregulated redox processes in various diseases. This report highlights the major achievements of EU-ROS as well as research updates and new perspectives arising from its members. The EU-ROS consortium comprised more than 140 active members who worked together for four years on the topics briefly described below. The formation of reactive oxygen and nitrogen species (RONS) is an established hallmark of our aerobic environment and metabolism but RONS also act as messengers via redox regulation of essential cellular processes. The fact that many diseases have been found to be associated with oxidative stress established the theory of oxidative stress as a trigger of diseases that can be corrected by antioxidant therapy. However, while experimental studies support this thesis, clinical studies still generate controversial results, due to complex pathophysiology of oxidative stress in humans. For future improvement of antioxidant therapy and better understanding of redox-associated disease progression detailed knowledge on the sources and targets of RONS formation and discrimination of their detrimental or beneficial roles is required. In order to advance this important area of biology and medicine, highly synergistic approaches combining a variety of diverse and contrasting disciplines are needed.
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Affiliation(s)
- Javier Egea
- Institute Teofilo Hernando, Department of Pharmacology, School of Medicine. Univerisdad Autonoma de Madrid, Spain
| | - Isabel Fabregat
- Bellvitge Biomedical Research Institute (IDIBELL) and University of Barcelona (UB), L'Hospitalet, Barcelona, Spain
| | - Yves M Frapart
- LCBPT, UMR 8601 CNRS - Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | | | - Agnes Görlach
- Experimental and Molecular Pediatric Cardiology, German Heart Center Munich at the Technical University Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Thomas Kietzmann
- Faculty of Biochemistry and Molecular Medicine, and Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Kateryna Kubaichuk
- Faculty of Biochemistry and Molecular Medicine, and Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Ulla G Knaus
- Conway Institute, School of Medicine, University College Dublin, Dublin, Ireland
| | - Manuela G Lopez
- Institute Teofilo Hernando, Department of Pharmacology, School of Medicine. Univerisdad Autonoma de Madrid, Spain
| | | | - Andreas Petry
- Experimental and Molecular Pediatric Cardiology, German Heart Center Munich at the Technical University Munich, Munich, Germany
| | - Rainer Schulz
- Institute of Physiology, JLU Giessen, Giessen, Germany
| | - Jose Vina
- Department of Physiology, University of Valencia, Spain
| | - Paul Winyard
- University of Exeter Medical School, St Luke's Campus, Exeter EX1 2LU, UK
| | - Kahina Abbas
- LCBPT, UMR 8601 CNRS - Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Opeyemi S Ademowo
- Life & Health Sciences and Aston Research Centre for Healthy Ageing, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Catarina B Afonso
- School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham B47ET, UK
| | - Ioanna Andreadou
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Greece
| | - Haike Antelmann
- Institute for Biology-Microbiology, Freie Universität Berlin, Berlin, Germany
| | - Fernando Antunes
- Departamento de Química e Bioquímica and Centro de Química e Bioquímica, Faculdade de Ciências, Portugal
| | - Mutay Aslan
- Department of Medical Biochemistry, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Markus M Bachschmid
- Vascular Biology Section & Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Rui M Barbosa
- Center for Neurosciences and Cell Biology, University of Coimbra and Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Vsevolod Belousov
- Molecular technologies laboratory, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, Moscow 117997, Russia
| | - Carsten Berndt
- Department of Neurology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - David Bernlohr
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota - Twin Cities, USA
| | - Esther Bertrán
- Bellvitge Biomedical Research Institute (IDIBELL) and University of Barcelona (UB), L'Hospitalet, Barcelona, Spain
| | | | - Serge P Bottari
- GETI, Institute for Advanced Biosciences, INSERM U1029, CNRS UMR 5309, Grenoble-Alpes University and Radio-analysis Laboratory, CHU de Grenoble, Grenoble, France
| | - Paula M Brito
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal; Faculdade de Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - Guia Carrara
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - Ana I Casas
- Department of Pharmacology & Personalized Medicine, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - Afroditi Chatzi
- Institute of Molecular Cell and Systems Biology, College of Medical Veterinary and Life Sciences, University of Glasgow, University Avenue, Glasgow, UK
| | - Niki Chondrogianni
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, 48 Vas. Constantinou Ave., 116 35 Athens, Greece
| | - Marcus Conrad
- Helmholtz Center Munich, Institute of Developmental Genetics, Neuherberg, Germany
| | - Marcus S Cooke
- Oxidative Stress Group, Dept. Environmental & Occupational Health, Florida International University, Miami, FL 33199, USA
| | - João G Costa
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal; CBIOS, Universidade Lusófona Research Center for Biosciences & Health Technologies, Lisboa, Portugal
| | - Antonio Cuadrado
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Instituto de Investigación Sanitaria La Paz (IdiPaz), Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Pham My-Chan Dang
- Université Paris Diderot, Sorbonne Paris Cité, INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation, Laboratoire d'Excellence Inflamex, Faculté de Médecine Xavier Bichat, Paris, France
| | - Barbara De Smet
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; Structural Biology Research Center, VIB, 1050 Brussels, Belgium; Department of Biomedical Sciences and CNR Institute of Neuroscience, University of Padova, Padova, Italy; Pharmahungary Group, Szeged, Hungary
| | - Bilge Debelec-Butuner
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Ege University, Bornova, Izmir 35100, Turkey
| | - Irundika H K Dias
- Life & Health Sciences and Aston Research Centre for Healthy Ageing, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Joe Dan Dunn
- Department of Biochemistry, Science II, University of Geneva, 30 quai Ernest-Ansermet, 1211 Geneva-4, Switzerland
| | - Amanda J Edson
- Department of Molecular Biology, University of Bergen, Bergen, Norway
| | - Mariam El Assar
- Fundación para la Investigación Biomédica del Hospital Universitario de Getafe, Getafe, Spain
| | - Jamel El-Benna
- Université Paris Diderot, Sorbonne Paris Cité, INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation, Laboratoire d'Excellence Inflamex, Faculté de Médecine Xavier Bichat, Paris, France
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Medical Faculty, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Ana S Fernandes
- CBIOS, Universidade Lusófona Research Center for Biosciences & Health Technologies, Lisboa, Portugal
| | - Kari E Fladmark
- Department of Molecular Biology, University of Bergen, Bergen, Norway
| | - Ulrich Förstermann
- Department of Pharmacology, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Rashid Giniatullin
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Zoltán Giricz
- Department of Pharmacology and Pharmacotherapy, Medical Faculty, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Anikó Görbe
- Department of Pharmacology and Pharmacotherapy, Medical Faculty, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Helen Griffiths
- Life & Health Sciences and Aston Research Centre for Healthy Ageing, Aston University, Aston Triangle, Birmingham B4 7ET, UK; Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK
| | - Vaclav Hampl
- Department of Physiology, 2nd Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Alina Hanf
- Molecular Cardiology, Center for Cardiology, Cardiology 1, University Medical Center Mainz, Mainz, Germany
| | - Jan Herget
- Department of Physiology, 2nd Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Pablo Hernansanz-Agustín
- Servicio de Immunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain; Departamento de Bioquímica, Facultad de Medicina, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas Alberto Sols, Madrid, Spain
| | - Melanie Hillion
- Institute for Biology-Microbiology, Freie Universität Berlin, Berlin, Germany
| | - Jingjing Huang
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; Structural Biology Research Center, VIB, 1050 Brussels, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Brussels Center for Redox Biology, Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Serap Ilikay
- Harran University, Arts and Science Faculty, Department of Biology, Cancer Biology Lab, Osmanbey Campus, Sanliurfa, Turkey
| | - Pidder Jansen-Dürr
- Institute for Biomedical Aging Research, University of Innsbruck, Innsbruck, Austria
| | - Vincent Jaquet
- Dept. of Pathology and Immunology, Centre Médical Universitaire, Geneva, Switzerland
| | - Jaap A Joles
- Department of Nephrology & Hypertension, University Medical Center Utrecht, The Netherlands
| | | | | | - Mahsa Karbaschi
- Oxidative Stress Group, Dept. Environmental & Occupational Health, Florida International University, Miami, FL 33199, USA
| | - Marina Kleanthous
- Molecular Genetics Thalassaemia Department, The Cyprus Institute of Neurology and Genetics, Nicosia, Cyprus
| | - Lars-Oliver Klotz
- Institute of Nutrition, Department of Nutrigenomics, Friedrich Schiller University, Jena, Germany
| | - Bato Korac
- University of Belgrade, Institute for Biological Research "Sinisa Stankovic" and Faculty of Biology, Belgrade, Serbia
| | - Kemal Sami Korkmaz
- Department of Bioengineering, Cancer Biology Laboratory, Faculty of Engineering, Ege University, Bornova, 35100 Izmir, Turkey
| | - Rafal Koziel
- Institute for Biomedical Aging Research, University of Innsbruck, Innsbruck, Austria
| | - Damir Kračun
- Experimental and Molecular Pediatric Cardiology, German Heart Center Munich at the Technical University Munich, Munich, Germany
| | - Karl-Heinz Krause
- Dept. of Pathology and Immunology, Centre Médical Universitaire, Geneva, Switzerland
| | - Vladimír Křen
- Institute of Microbiology, Laboratory of Biotransformation, Czech Academy of Sciences, Videnska 1083, CZ-142 20 Prague, Czech Republic
| | - Thomas Krieg
- Department of Medicine, University of Cambridge, UK
| | - João Laranjinha
- Center for Neurosciences and Cell Biology, University of Coimbra and Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Antigone Lazou
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Huige Li
- Department of Pharmacology, Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Antonio Martínez-Ruiz
- Servicio de Immunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Reiko Matsui
- Vascular Biology Section & Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Gethin J McBean
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Dublin, Ireland
| | - Stuart P Meredith
- School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham B47ET, UK
| | - Joris Messens
- Structural Biology Research Center, VIB, 1050 Brussels, Belgium; Brussels Center for Redox Biology, Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Verónica Miguel
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Madrid, Spain
| | - Yuliya Mikhed
- Molecular Cardiology, Center for Cardiology, Cardiology 1, University Medical Center Mainz, Mainz, Germany
| | - Irina Milisav
- University of Ljubljana, Faculty of Medicine, Institute of Pathophysiology and Faculty of Health Sciences, Ljubljana, Slovenia
| | - Lidija Milković
- Ruđer Bošković Institute, Division of Molecular Medicine, Zagreb, Croatia
| | - Antonio Miranda-Vizuete
- Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - Miloš Mojović
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - María Monsalve
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Madrid, Spain
| | - Pierre-Alexis Mouthuy
- Laboratory for Oxidative Stress, Rudjer Boskovic Institute, Bijenicka 54, 10000 Zagreb, Croatia
| | - John Mulvey
- Department of Medicine, University of Cambridge, UK
| | - Thomas Münzel
- Molecular Cardiology, Center for Cardiology, Cardiology 1, University Medical Center Mainz, Mainz, Germany
| | - Vladimir Muzykantov
- Department of Pharmacology, Center for Targeted Therapeutics & Translational Nanomedicine, ITMAT/CTSA Translational Research Center University of Pennsylvania The Perelman School of Medicine, Philadelphia, PA, USA
| | - Isabel T N Nguyen
- Department of Nephrology & Hypertension, University Medical Center Utrecht, The Netherlands
| | - Matthias Oelze
- Molecular Cardiology, Center for Cardiology, Cardiology 1, University Medical Center Mainz, Mainz, Germany
| | - Nuno G Oliveira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal
| | - Carlos M Palmeira
- Center for Neurosciences & Cell Biology of the University of Coimbra, Coimbra, Portugal; Department of Life Sciences of the Faculty of Sciences & Technology of the University of Coimbra, Coimbra, Portugal
| | - Nikoletta Papaevgeniou
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, 48 Vas. Constantinou Ave., 116 35 Athens, Greece
| | - Aleksandra Pavićević
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Brandán Pedre
- Structural Biology Research Center, VIB, 1050 Brussels, Belgium; Brussels Center for Redox Biology, Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Fabienne Peyrot
- LCBPT, UMR 8601 CNRS - Paris Descartes University, Sorbonne Paris Cité, Paris, France; ESPE of Paris, Paris Sorbonne University, Paris, France
| | - Marios Phylactides
- Molecular Genetics Thalassaemia Department, The Cyprus Institute of Neurology and Genetics, Nicosia, Cyprus
| | | | - Andrew R Pitt
- School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham B47ET, UK
| | - Henrik E Poulsen
- Laboratory of Clinical Pharmacology, Rigshospitalet, University Hospital Copenhagen, Denmark; Department of Clinical Pharmacology, Bispebjerg Frederiksberg Hospital, University Hospital Copenhagen, Denmark; Department Q7642, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - Ignacio Prieto
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Madrid, Spain
| | - Maria Pia Rigobello
- Department of Biomedical Sciences, University of Padova, via Ugo Bassi 58/b, 35131 Padova, Italy
| | - Natalia Robledinos-Antón
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Instituto de Investigación Sanitaria La Paz (IdiPaz), Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid. Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Leocadio Rodríguez-Mañas
- Fundación para la Investigación Biomédica del Hospital Universitario de Getafe, Getafe, Spain; Servicio de Geriatría, Hospital Universitario de Getafe, Getafe, Spain
| | - Anabela P Rolo
- Center for Neurosciences & Cell Biology of the University of Coimbra, Coimbra, Portugal; Department of Life Sciences of the Faculty of Sciences & Technology of the University of Coimbra, Coimbra, Portugal
| | - Francis Rousset
- Dept. of Pathology and Immunology, Centre Médical Universitaire, Geneva, Switzerland
| | - Tatjana Ruskovska
- Faculty of Medical Sciences, Goce Delcev University, Stip, Republic of Macedonia
| | - Nuno Saraiva
- CBIOS, Universidade Lusófona Research Center for Biosciences & Health Technologies, Lisboa, Portugal
| | - Shlomo Sasson
- Institute for Drug Research, Section of Pharmacology, Diabetes Research Unit, The Hebrew University Faculty of Medicine, Jerusalem, Israel
| | - Katrin Schröder
- Institute for Cardiovascular Physiology, Goethe-University, Frankfurt, Germany; DZHK (German Centre for Cardiovascular Research), partner site Rhine-Main, Mainz, Germany
| | - Khrystyna Semen
- Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | - Tamara Seredenina
- Dept. of Pathology and Immunology, Centre Médical Universitaire, Geneva, Switzerland
| | - Anastasia Shakirzyanova
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | | | - Thierry Soldati
- Department of Biochemistry, Science II, University of Geneva, 30 quai Ernest-Ansermet, 1211 Geneva-4, Switzerland
| | - Bebiana C Sousa
- School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham B47ET, UK
| | - Corinne M Spickett
- Life & Health Sciences and Aston Research Centre for Healthy Ageing, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Ana Stancic
- University of Belgrade, Institute for Biological Research "Sinisa Stankovic" and Faculty of Biology, Belgrade, Serbia
| | - Marie José Stasia
- Université Grenoble Alpes, CNRS, Grenoble INP, CHU Grenoble Alpes, TIMC-IMAG, F38000 Grenoble, France; CDiReC, Pôle Biologie, CHU de Grenoble, Grenoble, F-38043, France
| | - Holger Steinbrenner
- Institute of Nutrition, Department of Nutrigenomics, Friedrich Schiller University, Jena, Germany
| | - Višnja Stepanić
- Ruđer Bošković Institute, Division of Molecular Medicine, Zagreb, Croatia
| | - Sebastian Steven
- Molecular Cardiology, Center for Cardiology, Cardiology 1, University Medical Center Mainz, Mainz, Germany
| | - Kostas Tokatlidis
- Institute of Molecular Cell and Systems Biology, College of Medical Veterinary and Life Sciences, University of Glasgow, University Avenue, Glasgow, UK
| | - Erkan Tuncay
- Department of Biophysics, Ankara University, Faculty of Medicine, 06100 Ankara, Turkey
| | - Belma Turan
- Department of Biophysics, Ankara University, Faculty of Medicine, 06100 Ankara, Turkey
| | - Fulvio Ursini
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hnevotinska 3, Olomouc 77515, Czech Republic
| | - Olga Vajnerova
- Department of Physiology, 2nd Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Kateřina Valentová
- Institute of Microbiology, Laboratory of Biotransformation, Czech Academy of Sciences, Videnska 1083, CZ-142 20 Prague, Czech Republic
| | - Frank Van Breusegem
- Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Lokman Varisli
- Harran University, Arts and Science Faculty, Department of Biology, Cancer Biology Lab, Osmanbey Campus, Sanliurfa, Turkey
| | - Elizabeth A Veal
- Institute for Cell and Molecular Biosciences, and Institute for Ageing, Newcastle University, Framlington Place, Newcastle upon Tyne, UK
| | - A Suha Yalçın
- Department of Biochemistry, School of Medicine, Marmara University, İstanbul, Turkey
| | | | - Neven Žarković
- Laboratory for Oxidative Stress, Rudjer Boskovic Institute, Bijenicka 54, 10000 Zagreb, Croatia
| | - Martina Zatloukalová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hnevotinska 3, Olomouc 77515, Czech Republic
| | | | - Rhian M Touyz
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, UK
| | - Andreas Papapetropoulos
- Laboratoty of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Greece
| | - Tilman Grune
- German Institute of Human Nutrition, Department of Toxicology, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Santiago Lamas
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Madrid, Spain
| | - Harald H H W Schmidt
- Department of Pharmacology & Personalized Medicine, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - Fabio Di Lisa
- Department of Biomedical Sciences and CNR Institute of Neuroscience, University of Padova, Padova, Italy.
| | - Andreas Daiber
- Molecular Cardiology, Center for Cardiology, Cardiology 1, University Medical Center Mainz, Mainz, Germany; DZHK (German Centre for Cardiovascular Research), partner site Rhine-Main, Mainz, Germany.
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78
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Mahmoud AM, Hozayen WG, Ramadan SM. Berberine ameliorates methotrexate-induced liver injury by activating Nrf2/HO-1 pathway and PPARγ, and suppressing oxidative stress and apoptosis in rats. Biomed Pharmacother 2017; 94:280-291. [DOI: 10.1016/j.biopha.2017.07.101] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 07/20/2017] [Accepted: 07/20/2017] [Indexed: 12/30/2022] Open
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Diabetes-Related Induction of the Heme Oxygenase System and Enhanced Colocalization of Heme Oxygenase 1 and 2 with Neuronal Nitric Oxide Synthase in Myenteric Neurons of Different Intestinal Segments. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:1890512. [PMID: 29081883 PMCID: PMC5610792 DOI: 10.1155/2017/1890512] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 08/02/2017] [Accepted: 08/17/2017] [Indexed: 12/17/2022]
Abstract
Increase in hyperglycaemia-induced oxidative stress and decreased effectiveness of endogenous defense mechanisms plays an essential role in the initiation of diabetes-related neuropathy. We demonstrated that nitrergic myenteric neurons display different susceptibilities to diabetic damage in different gut segments. Therefore, we aim to reveal the gut segment-specific differences in the expression of heme oxygenase (HO) isoforms and the colocalization of these antioxidants with neuronal nitric oxide synthase (nNOS) in myenteric neurons. After ten weeks, samples from the duodenum, ileum, and colon of control and streptozotocin-induced diabetic rats were processed for double-labelling fluorescent immunohistochemistry and ELISA. The number of both HO-immunoreactive and nNOS/HO-immunoreactive myenteric neurons was the lowest in the ileal and the highest in the colonic ganglia of controls; it increased the most extensively in the ileum and was also elevated in the colon of diabetics. Although the total number of nitrergic neurons decreased in all segments, the proportion of nNOS-immunoreactive neurons colocalizing with HOs was enhanced robustly in the ileum and colon of diabetics. We presume that those nitrergic neurons which do not colocalize with HOs are the most seriously affected by diabetic damage. Therefore, the regional induction of the HO system is strongly correlated with diabetes-related region-specific nitrergic neuropathy.
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80
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Rodríguez-Nogales A, Algieri F, Garrido-Mesa J, Vezza T, Utrilla MP, Chueca N, Garcia F, Olivares M, Rodríguez-Cabezas ME, Gálvez J. Differential intestinal anti-inflammatory effects of Lactobacillus fermentum and Lactobacillus salivarius in DSS mouse colitis: impact on microRNAs expression and microbiota composition. Mol Nutr Food Res 2017; 61. [PMID: 28752563 DOI: 10.1002/mnfr.201700144] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 07/24/2017] [Accepted: 07/25/2017] [Indexed: 12/15/2022]
Abstract
SCOPE To compare the intestinal anti-inflammatory effects of two probiotics Lactobacillus fermentum and Lactobacillus salivarius in mouse colitis, focusing on their impact on selected miRNAs and microbiota composition. METHODS AND RESULTS Male C57BL/6J mice were randomly assigned to four groups (n = 10): non-colitic, DSS colitic and two colitic groups treated with probiotics (5 × 108 CFU/mouse/day). Both probiotics ameliorated macroscopic colonic damage. They improved the colonic expression of markers involved in the immune response, and the expression of miR-155 and miR-223. L. fermentum also restored miR-150 and miR-143 expression, also linked to the preservation of the intestinal barrier function. Besides, these beneficial effects were associated with the amelioration of the microbiota dysbiosis and a recovery of the SCFAs- and lactic acid-producing bacterial populations, although only L. fermentum improved Chao richness, Pielou evenness and Shannon diversity. Moreover, L. fermentum also restored the Treg cell population in MLNs and the Th1/Th2 cytokine balance. CONCLUSION Both probiotics exerted intestinal anti-inflammatory effects in DSS-mouse colitis, maybe due to their ability to restore the intestinal microbiota homeostasis and modulate the immune response. L. fermentum showed a greater beneficial effect compared to L. salivarius, which makes it more interesting for future studies.
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Affiliation(s)
- Alba Rodríguez-Nogales
- CIBER-EHD, Department of Pharmacology, ibs.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Francesca Algieri
- 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
| | - Teresa Vezza
- 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
| | - Natalia Chueca
- Department of Microbiology, ibs.GRANADA, Complejo Hospitalario Universitario de Granada, ibs.GRANADA, Granada, Spain
| | - Federico Garcia
- Department of Microbiology, ibs.GRANADA, Complejo Hospitalario Universitario de Granada, ibs.GRANADA, Granada, Spain
| | | | - M Elena Rodríguez-Cabezas
- CIBER-EHD, Department of Pharmacology, ibs.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Julio Gálvez
- CIBER-EHD, Department of Pharmacology, ibs.GRANADA, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
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Moine L, Díaz de Barboza G, Pérez A, Benedetto M, Tolosa de Talamoni N. Glutamine protects intestinal calcium absorption against oxidative stress and apoptosis. Comp Biochem Physiol A Mol Integr Physiol 2017; 212:64-71. [PMID: 28732794 DOI: 10.1016/j.cbpa.2017.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/03/2017] [Accepted: 07/13/2017] [Indexed: 12/23/2022]
Abstract
The aim of this study was to investigate whether glutamine (GLN) could block the inhibition of the intestinal Ca2+ absorption caused by menadione (MEN), and elucidate the underlying mechanisms. To do this, one-month old chicks were divided in four groups: 1) controls, 2) MEN treated, 3) GLN treated and 4) GLN treated before or after MEN treatment. Intestinal Ca2+ absorption as well as protein expression of molecules involved in the transcellular Ca2+ pathway were determined. Glutathione (GSH) and superoxide anion and activity of enzymes of the antioxidant system were evaluated. Apoptosis was measured by the TUNEL technique, the expression of FAS and FASL and the caspase-3 activity. A previous dose of 0.5gGLN/kg of b.w. was necessary to show its protector effect and a dose of 1g/kg of b.w. could restore the intestinal Ca2+ absorption after MEN treatment. GLN alone did not modify the protein expression of calbindin D28k and plasma membrane Ca2+-ATPase, but blocked the inhibitory effect of the quinone. GLN avoided changes in the intestinal redox state provoked by MEN such as a decrease in the GSH content, and increases in the superoxide anion and in the SOD and CAT activities. GLN abrogated apoptotic effects caused by MEN in intestinal mucosa, as indicated by the reduction of TUNEL (+) cells and the FAS/FASL/caspase-3 pathway. In conclusion, GLN could be an oral nutritional supplement to normalize the redox state and the proliferation/cell death ratio in the small intestine improving the intestinal Ca2+ absorption altered by oxidative stress.
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Affiliation(s)
- Luciana Moine
- Laboratorio "Dr. Fernando Cañas", Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA, CONICET-Universidad Nacional de Córdoba, Pabellón Argentina, 2do. Piso, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Gabriela Díaz de Barboza
- Laboratorio "Dr. Fernando Cañas", Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA, CONICET-Universidad Nacional de Córdoba, Pabellón Argentina, 2do. Piso, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Adriana Pérez
- Laboratorio "Dr. Fernando Cañas", Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA, CONICET-Universidad Nacional de Córdoba, Pabellón Argentina, 2do. Piso, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Mercedes Benedetto
- Laboratorio "Dr. Fernando Cañas", Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA, CONICET-Universidad Nacional de Córdoba, Pabellón Argentina, 2do. Piso, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Nori Tolosa de Talamoni
- Laboratorio "Dr. Fernando Cañas", Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA, CONICET-Universidad Nacional de Córdoba, Pabellón Argentina, 2do. Piso, Ciudad Universitaria, 5000 Córdoba, Argentina.
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82
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Diaz de Barboza G, Guizzardi S, Moine L, Tolosa de Talamoni N. Oxidative stress, antioxidants and intestinal calcium absorption. World J Gastroenterol 2017; 23:2841-2853. [PMID: 28522903 PMCID: PMC5413780 DOI: 10.3748/wjg.v23.i16.2841] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/01/2017] [Accepted: 03/30/2017] [Indexed: 02/06/2023] Open
Abstract
The disequilibrium between the production of reactive oxygen (ROS) and nitrogen (RNS) species and their elimination by protective mechanisms leads to oxidative stress. Mitochondria are the main source of ROS as by-products of electron transport chain. Most of the time the intestine responds adequately against the oxidative stress, but with aging or under conditions that exacerbate the ROS and/or RNS production, the defenses are not enough and contribute to developing intestinal pathologies. The endogenous antioxidant defense system in gut includes glutathione (GSH) and GSH-dependent enzymes as major components. When the ROS and/or RNS production is exacerbated, oxidative stress occurs and the intestinal Ca2+ absorption is inhibited. GSH depleting drugs such as DL-buthionine-S,R-sulfoximine, menadione and sodium deoxycholate inhibit the Ca2+ transport from lumen to blood by alteration in the protein expression and/or activity of molecules involved in the Ca2+ transcellular and paracellular pathways through mechanisms of oxidative stress, apoptosis and/or autophagy. Quercetin, melatonin, lithocholic and ursodeoxycholic acids block the effect of those drugs in experimental animals by their antioxidant, anti-apoptotic and/or anti-autophagic properties. Therefore, they may become drugs of choice for treatment of deteriorated intestinal Ca2+ absorption under oxidant conditions such as aging, diabetes, gut inflammation and other intestinal disorders.
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83
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Mahmoud AM, Hussein OE, Hozayen WG, Abd El-Twab SM. Methotrexate hepatotoxicity is associated with oxidative stress, and down-regulation of PPARγ and Nrf2: Protective effect of 18β-Glycyrrhetinic acid. Chem Biol Interact 2017; 270:59-72. [PMID: 28414158 DOI: 10.1016/j.cbi.2017.04.009] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/02/2017] [Accepted: 04/12/2017] [Indexed: 12/21/2022]
Abstract
18β-glycyrrhetinic acid (18β-GA) is a bioactive component of licorice with promising hepatoprotective activity. However, its protective mechanism on methotrexate (MTX) hepatotoxicity in not well defined. We investigated the hepatoprotective effect of 18β-GA, pointing to the role of peroxisome proliferator activated receptor gamma (PPARγ) and the redox-sensitive nuclear factor erythroid 2-related factor 2 (Nrf2). Wistar rats were orally administered 18β-GA (50 and 100 mg/kg) 7 days either before or after MTX injection. MTX induced significant increase in circulating liver function marker enzymes and bilirubin with concomitant declined albumin levels. Serum pro-inflammatory cytokines, and liver malondialdehyde and nitric oxide were significantly increased in MTX-induced rats. Treatment with 18β-GA significantly reduced serum enzymes of liver function, bilirubin and pro-inflammatory cytokines. 18β-GA attenuated MTX-induced oxidative stress and restored the antioxidant defenses. In addition, 18β-GA improved liver histological structure and decreased the expression of Bax whereas increased Bcl-2 expression. MTX-induced rats showed significant down-regulation of Nrf2, hemoxygenase-1 and PPARγ, an effect that was markedly reversed by 18β-GA supplemented either before or after MTX. In conclusion, 18β-GA protected against MTX-induced liver injury, possibly by activating Nrf2 and PPARγ, and subsequent attenuation of inflammation, oxidative stress and apoptosis. Therefore, 18β-GA can provide protection against MTX-induced hepatotoxicity.
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Affiliation(s)
- Ayman M Mahmoud
- Physiology Division, Department of Zoology, Faculty of Science, Beni-Suef University, Egypt.
| | - Omnia E Hussein
- Physiology Division, Department of Zoology, Faculty of Science, Beni-Suef University, Egypt
| | - Walaa G Hozayen
- Biochemistry Division, Chemistry Department, Faculty of Science, Beni-Suef University, Egypt; Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Egypt
| | - Sanaa M Abd El-Twab
- Physiology Division, Department of Zoology, Faculty of Science, Beni-Suef University, Egypt
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84
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Acute oral dose of sodium nitrite induces redox imbalance, DNA damage, metabolic and histological changes in rat intestine. PLoS One 2017; 12:e0175196. [PMID: 28384248 PMCID: PMC5383256 DOI: 10.1371/journal.pone.0175196] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 03/22/2017] [Indexed: 12/16/2022] Open
Abstract
Industrialization and unchecked use of nitrate/nitrite salts for various purposes has increased human exposure to high levels of sodium nitrite (NaNO2) which can act as a pro-oxidant and pro-carcinogen. Oral exposure makes the gastrointestinal tract particularly susceptible to nitrite toxicity. In this work, the effect of administration of a single acute oral dose of NaNO2 on rat intestine was studied. Animals were randomly divided into four groups and given single doses of 20, 40, 60 and 75 mg NaNO2/kg body weight. Untreated animals served as the control group. An NaNO2 dose-dependent decline in the activities of brush border membrane enzymes, increase in lipid peroxidation, protein oxidation, hydrogen peroxide levels and decreased thiol content was observed in all treated groups. The activities of various metabolic and antioxidant defense enzymes were also altered. NaNO2 induced a dose-dependent increase in DNA damage and DNA-protein crosslinking. Histopathological studies showed marked morphological damage in intestinal cells. The intestinal damage might be due to nitrite-induced oxidative stress, direct action of nitrite anion or chemical modification by reaction intermediates.
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85
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Li J, Liu Y, Kim E, March JC, Bentley WE, Payne GF. Electrochemical reverse engineering: A systems-level tool to probe the redox-based molecular communication of biology. Free Radic Biol Med 2017; 105:110-131. [PMID: 28040473 DOI: 10.1016/j.freeradbiomed.2016.12.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 12/06/2016] [Accepted: 12/20/2016] [Indexed: 12/20/2022]
Abstract
The intestine is the site of digestion and forms a critical interface between the host and the outside world. This interface is composed of host epithelium and a complex microbiota which is "connected" through an extensive web of chemical and biological interactions that determine the balance between health and disease for the host. This biology and the associated chemical dialogues occur within a context of a steep oxygen gradient that provides the driving force for a variety of reduction and oxidation (redox) reactions. While some redox couples (e.g., catecholics) can spontaneously exchange electrons, many others are kinetically "insulated" (e.g., biothiols) allowing the biology to set and control their redox states far from equilibrium. It is well known that within cells, such non-equilibrated redox couples are poised to transfer electrons to perform reactions essential to immune defense (e.g., transfer from NADH to O2 for reactive oxygen species, ROS, generation) and protection from such oxidative stresses (e.g., glutathione-based reduction of ROS). More recently, it has been recognized that some of these redox-active species (e.g., H2O2) cross membranes and diffuse into the extracellular environment including lumen to transmit redox information that is received by atomically-specific receptors (e.g., cysteine-based sulfur switches) that regulate biological functions. Thus, redox has emerged as an important modality in the chemical signaling that occurs in the intestine and there have been emerging efforts to develop the experimental tools needed to probe this modality. We suggest that electrochemistry provides a unique tool to experimentally probe redox interactions at a systems level. Importantly, electrochemistry offers the potential to enlist the extensive theories established in signal processing in an effort to "reverse engineer" the molecular communication occurring in this complex biological system. Here, we review our efforts to develop this electrochemical tool for in vitro redox-probing.
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Affiliation(s)
- Jinyang Li
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Yi Liu
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Eunkyoung Kim
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - John C March
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA
| | - Gregory F Payne
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA.
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86
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Pérez S, Taléns-Visconti R, Rius-Pérez S, Finamor I, Sastre J. Redox signaling in the gastrointestinal tract. Free Radic Biol Med 2017; 104:75-103. [PMID: 28062361 DOI: 10.1016/j.freeradbiomed.2016.12.048] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 12/20/2016] [Accepted: 12/31/2016] [Indexed: 12/16/2022]
Abstract
Redox signaling regulates physiological self-renewal, proliferation, migration and differentiation in gastrointestinal epithelium by modulating Wnt/β-catenin and Notch signaling pathways mainly through NADPH oxidases (NOXs). In the intestine, intracellular and extracellular thiol redox status modulates the proliferative potential of epithelial cells. Furthermore, commensal bacteria contribute to intestine epithelial homeostasis through NOX1- and dual oxidase 2-derived reactive oxygen species (ROS). The loss of redox homeostasis is involved in the pathogenesis and development of a wide diversity of gastrointestinal disorders, such as Barrett's esophagus, esophageal adenocarcinoma, peptic ulcer, gastric cancer, ischemic intestinal injury, celiac disease, inflammatory bowel disease and colorectal cancer. The overproduction of superoxide anion together with inactivation of superoxide dismutase are involved in the pathogenesis of Barrett's esophagus and its transformation to adenocarcinoma. In Helicobacter pylori-induced peptic ulcer, oxidative stress derived from the leukocyte infiltrate and NOX1 aggravates mucosal damage, especially in HspB+ strains that downregulate Nrf2. In celiac disease, oxidative stress mediates most of the cytotoxic effects induced by gluten peptides and increases transglutaminase levels, whereas nitrosative stress contributes to the impairment of tight junctions. Progression of inflammatory bowel disease relies on the balance between pro-inflammatory redox-sensitive pathways, such as NLRP3 inflammasome and NF-κB, and the adaptive up-regulation of Mn superoxide dismutase and glutathione peroxidase 2. In colorectal cancer, redox signaling exhibits two Janus faces: On the one hand, NOX1 up-regulation and derived hydrogen peroxide enhance Wnt/β-catenin and Notch proliferating pathways; on the other hand, ROS may disrupt tumor progression through different pro-apoptotic mechanisms. In conclusion, redox signaling plays a critical role in the physiology and pathophysiology of gastrointestinal tract.
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Affiliation(s)
- Salvador Pérez
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Burjasot, 46100 Valencia, Spain
| | - Raquel Taléns-Visconti
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Burjasot, 46100 Valencia, Spain
| | - Sergio Rius-Pérez
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Burjasot, 46100 Valencia, Spain
| | - Isabela Finamor
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Burjasot, 46100 Valencia, Spain
| | - Juan Sastre
- Department of Physiology, Faculty of Pharmacy, University of Valencia, Burjasot, 46100 Valencia, Spain.
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87
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Khan I, Samson SE, Grover AK. Antioxidant Supplements and Gastrointestinal Diseases: A Critical Appraisal. Med Princ Pract 2017; 26:201-217. [PMID: 28278495 PMCID: PMC5588418 DOI: 10.1159/000468988] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 03/08/2017] [Indexed: 12/21/2022] Open
Abstract
The gastrointestinal tract digests and absorbs dietary nutrients, protects the body against physical and chemical damage from contents in its lumen, provides immunity against external antigens, and keeps an optimum environment for the gut microbiota. These functions cannot be performed normally in several diseases of which the following are discussed here: irritable bowel syndrome and inflammatory bowel disease, which includes Crohn's disease and ulcerative colitis. Because these diseases are associated with oxidative stress, a host of antioxidant supplements are used for maintenance and recovery of the gut functions. However, the benefits of these supplements have not been established. The available 80 human trials were rated for levels of confidence and for benefits of the antioxidant supplements. For Crohn's disease, the supplements for which clear benefits occurred in at least 2 studies were allopurinol, Boswellia serrata (frankincense or shallaki), Artemesia species (wormwood), Tripterygium wilfordii (léi gōng téng), and omega-3 fatty acids. Similar beneficial supplements for ulcerative colitis were allopurinol, Matricaria chamomilla (chamomile), Curcuma longa (curcumin in turmeric), and omega-3 fatty acids. There was also a clear benefit for ulcerative colitis in 2 studies where a multiherbal Chinese medicine preparation and an Ayurvedic medicine preparation were used. For irritable bowel syndrome, there was only a marginal benefit of some of the antioxidant supplements. Thus, some antioxidant supplements may be beneficial at certain stages of specific diseases. This is consistent with the current concept that antioxidants act by inhibiting oxidative stress pathways in a tissue- and environment-specific manner and not by simply acting as scavengers.
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Affiliation(s)
- Islam Khan
- Department of Biochemistry, Kuwait University, Kuwait, Kuwait
| | - Sue E. Samson
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Ashok Kumar Grover
- Department of Medicine, McMaster University, Hamilton, ON, Canada
- *Dr. Ashok Kumar Grover, Department of Medicine, McMaster University, 1280 Main Street W., Hamilton, ON L8S 4K1 (Canada), E-Mail
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88
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Kalita B, Ranjan R, Singh A, Yashavarddhan MH, Bajaj S, Gupta ML. A Combination of Podophyllotoxin and Rutin Attenuates Radiation Induced Gastrointestinal Injury by Negatively Regulating NF-κB/p53 Signaling in Lethally Irradiated Mice. PLoS One 2016; 11:e0168525. [PMID: 28036347 PMCID: PMC5201299 DOI: 10.1371/journal.pone.0168525] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 12/03/2016] [Indexed: 12/15/2022] Open
Abstract
Development of an effective radio protector to minimise radiation-inflicted damages have largely failed owing to inherent toxicity of most of the agents examined so far. This study is centred towards delivering protection to lethally irradiated mice by pre-administration of a safe formulation G-003M (combination of podophyllotoxin and rutin) majorly through regulation of inflammatory and cell death pathways in mice. Single intramuscular dose of G-003M injected 60 min prior to 9 Gy exposure rescued 89% of whole body lethally irradiated C57BL/6J mice. Studies have revealed reduction in radiation induced reactive oxygen species (ROS), nitric oxide (NO) generation, prostaglandin E2 (PGE2) levels and intestinal apoptosis in G-003M pre-treated mice intestine. Restricted nuclear translocation of redox-sensitive Nuclear factor-κB (NF-κB) and subsequent downregulation of cyclo-oxygenase 2 (COX-2), inducible nitric oxide synthase (iNOS; EC 1.14.13.39) and tumor necrosis factor (TNF-α) levels demonstrated the anti-inflammatory effect that G-003M exerts. Support to early hematopoietic recovery was exhibited through G-003M mediated induction of granulocyte colony stimulating factor (G-CSF) and interleukin (IL-6) levels in lethally irradiated mice. Considerable attenuation in radiation induced morphological damage to the intestinal villi, crypts and mucosal layers was observed in G-003M pre-treated mice. Additionally, our formulation did not reduce the sensitivity of tumor tissue to radiation. Altogether, these results suggest that G-003M ameliorates the deleterious effects of radiation exposure by minimising ROS and NO generation and effectively regulating inflammatory and cell death pathways. Mechanism of protection elucidated in the current study demonstrates that G-003M can be used as a safe and effective radio protective agent in radiotherapy for human application.
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Affiliation(s)
- Bhargab Kalita
- Division of Radioprotective Drug Development and Research, Institute of Nuclear Medicine and Allied Sciences, Brig.S.K Mazumdar Marg, Delhi, INDIA
| | - Rajiv Ranjan
- Division of Radioprotective Drug Development and Research, Institute of Nuclear Medicine and Allied Sciences, Brig.S.K Mazumdar Marg, Delhi, INDIA
| | - Abhinav Singh
- Division of Radioprotective Drug Development and Research, Institute of Nuclear Medicine and Allied Sciences, Brig.S.K Mazumdar Marg, Delhi, INDIA
| | - M. H. Yashavarddhan
- Division of Radioprotective Drug Development and Research, Institute of Nuclear Medicine and Allied Sciences, Brig.S.K Mazumdar Marg, Delhi, INDIA
| | - Sania Bajaj
- Division of Radioprotective Drug Development and Research, Institute of Nuclear Medicine and Allied Sciences, Brig.S.K Mazumdar Marg, Delhi, INDIA
| | - Manju Lata Gupta
- Division of Radioprotective Drug Development and Research, Institute of Nuclear Medicine and Allied Sciences, Brig.S.K Mazumdar Marg, Delhi, INDIA
- * E-mail:
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89
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cGMP Signaling Increases Antioxidant Gene Expression by Activating Forkhead Box O3A in the Colon Epithelium. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 187:377-389. [PMID: 27998725 DOI: 10.1016/j.ajpath.2016.10.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 09/14/2016] [Accepted: 10/17/2016] [Indexed: 12/28/2022]
Abstract
Signaling through cGMP has therapeutic potential in the colon, where it has been implicated in the suppression of colitis and colon cancer. In this study, we tested the ability of cGMP and type 2 cGMP-dependent protein kinase (PKG2) to activate forkhead box O (FoxO) in colon cancer cells and in the colon epithelium of mice. We show that activation of PKG2 in colon cancer cells inhibited cell proliferation, inhibited AKT, and activated FoxO. Treatment of colon explants with 8Br-cGMP also activated FoxO target gene expression at both RNA and protein levels, and reduced epithelial reduction-oxidation (redox) stress. FoxO3a was the most prominent isoform in the distal colon epithelium, with prominent luminal staining. FoxO3a levels were reduced in Prkg2-/- animals, and FoxO target genes were unaffected by 8Br-cGMP challenge in vitro. Treatment of mice with the phosphodiesterase-5 inhibitor vardenafil (Levitra) mobilized FoxO3a to the nucleus of luminal epithelial cells, which corresponded to increased FoxO target gene expression, reduced redox stress, and increased epithelial barrier integrity. Treatment of human colonic biopsy specimens with 8Br-cGMP also activated catalase and manganese superoxide dismutase expression, indicating that this pathway is conserved in humans. Taken together, these results identify a novel signaling pathway in the colon epithelium, where FoxO tumor suppressors could provide protection from redox stress. Moreover, this pathway is regulated by endogenous cGMP/PKG2 signaling, and can be targeted using phosphodiesterase-5 inhibitors.
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90
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Mohamed HM, Abd El-Twab SM. Gallic acid attenuates chromium-induced thyroid dysfunction by modulating antioxidant status and inflammatory cytokines. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 48:225-236. [PMID: 27835810 DOI: 10.1016/j.etap.2016.08.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 08/19/2016] [Accepted: 08/30/2016] [Indexed: 06/06/2023]
Abstract
Hexavalent chromium-mediated oxidative stress causes severe organ damage. The present study was designed to investigate the possible thyroprotective effect and underlying mechanisms of gallic acid using rat model of potassium dichromate-induced thyroid dysfunction. Forty adult male albino rats were divided into 4 groups: control, gallic acid (20mg GA/kg b. wt), potassium dichromate (2mg PD/kg b. wt) and the fourth group was co-treated with PD and GA. PD-injection resulted in decreased serum free triiodothyonine (FT3), free thyroxine (FT4) with concomitant significant increase in thyroid stimulating hormone (TSH) levels. Superoxide dismutase (SOD), glutathione-S-transferase (GST) activities and their respective mRNA expression and reduced glutathione (GSH) content were significantly decreased. Thyroid nitrosative stress marker (NO level and iNOS mRNA and protein expression) and pro-inflammatory cytokines (serum TNF-α, IL-6 and thyroid TNF-α, IL-6 and COX-2 gene and protein expression levels) were disturbed. Histopathological changes revealed distended, collapsed and degenerated follicles with vacuolated cytoplasm. GA co-treatment attenuated pro-inflammatory cytokines, the thyroid expression of iNOS, TNF-α, IL-6 and COX-2, decreased the elevated lipid peroxidation biomarkers and NO level and up- regulated SOD and GST mRNA expression levels. In conclusion, GA has shown strong modulatory potential against PD-induced inflammation and oxidative stress in albino rats.
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Affiliation(s)
- Hanaa M Mohamed
- Genetic & Cell Biology, Zoology Department, Faculty of Science, Beni-Suef University, Egypt.
| | - Sanaa M Abd El-Twab
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Egypt
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91
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Selenoproteins: Antioxidant selenoenzymes and beyond. Arch Biochem Biophys 2016; 595:113-9. [PMID: 27095226 DOI: 10.1016/j.abb.2015.06.024] [Citation(s) in RCA: 192] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 06/08/2015] [Indexed: 11/21/2022]
Abstract
Adequate intake of the essential trace element and micronutrient selenium is thought to be beneficial for maintaining human health. Selenium may modulate a broad spectrum of key biological processes, including the cellular response to oxidative stress, redox signalling, cellular differentiation, the immune response, and protein folding. Biochemical and cellular effects of selenium are achieved through activities of selenocysteine-containing selenoproteins. This small yet essential group comprises proteins encoded by 25 genes in humans, e.g. oxidoreductases such as glutathione peroxidases (GPx) and thioredoxin reductases (TrxR), as well as the iodothyronine deiodinases (DIO) and the plasma selenium transport protein, selenoprotein P (SePP1). Synthetic selenoorganic compounds, including the GPx mimetic ebselen, have also been applied in biological systems in vitro and in vivo; antioxidant and anti-inflammatory actions of ebselen and its history as a drug candidate are summarised here. Furthermore, we discuss several aspects of selenoprotein biochemistry, ranging from their well-known importance for cellular protection against oxidative damage to more recent data that link selenoprotein expression/activity to enterocyte and adipocyte differentiation and function and to (dys)regulation of insulin action and secretion.
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92
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Loison P, Majou D, Gelhaye E, Boudaud N, Gantzer C. Impact of reducing and oxidizing agents on the infectivity of Qβ phage and the overall structure of its capsid. FEMS Microbiol Ecol 2016; 92:fiw153. [PMID: 27402711 DOI: 10.1093/femsec/fiw153] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2016] [Indexed: 11/12/2022] Open
Abstract
Qβ phages infect Escherichia coli in the human gut by recognizing F-pili as receptors. Infection therefore occurs under reducing conditions induced by physiological agents (e.g. glutathione) or the intestinal bacterial flora. After excretion in the environment, phage particles are exposed to oxidizing conditions and sometimes disinfection. If inactivation does not occur, the phage may infect new hosts in the human gut through the oral route. During such a life cycle, we demonstrated that, outside the human gut, cysteines of the major protein capsid of Qβ phage form disulfide bonds. Disinfection with NaClO does not allow overoxidation to occur. Such oxidation induces inactivation rather by irreversible damage to the minor proteins. In the presence of glutathione, most disulfide bonds are reduced, which slightly increases the capacity of the phage to infect E. coli in vitro Such reduction is reversible and barely alters infectivity of the phage. Reduction of all disulfide bonds by dithiothreitol leads to complete capsid destabilization. These data provide new insights into how the phages are impacted by oxidizing-reducing conditions outside their host cell and raises the possibility of the intervention of the redox during life cycle of the phage.
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Affiliation(s)
- Pauline Loison
- LCPME (Laboratory of Physical Chemistry and Microbiology for the Environment), Joint Research Unit - UMR 7564, CNRS/Université de Lorraine, Nancy 54000, France CNRS, LCPME, UMR 7564, Institut Jean Barriol (IJB), Nancy 54000, France Food Safety Department, ACTALIA, Saint Lô 50000, France
| | - Didier Majou
- ACTIA, 16 rue Claude Bernard, 75231 Paris Cedex 05, France
| | - Eric Gelhaye
- Université de Lorraine, Tree-Microbe Interactions Department, UMR1136, F-54500 Vandœuvre-lès-Nancy, France INRA, Tree-Microbe Interactions Department, UMR1136, F-54280 Champenoux, France
| | | | - Christophe Gantzer
- LCPME (Laboratory of Physical Chemistry and Microbiology for the Environment), Joint Research Unit - UMR 7564, CNRS/Université de Lorraine, Nancy 54000, France CNRS, LCPME, UMR 7564, Institut Jean Barriol (IJB), Nancy 54000, France
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93
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Kaplan M, Yuksel M, Ates I, Kilic ZMY, Kilic H, Kuzu UB, Kayacetin E. Is ischemia modified albumin a disease activity marker for inflammatory bowel diseases? J Gastroenterol Hepatol 2016; 31:1120-5. [PMID: 26642816 DOI: 10.1111/jgh.13254] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 11/11/2015] [Accepted: 11/23/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIM We aimed to identify ischemia-modified albumin (IMA) levels in inflammatory bowel disease (IBD) and IBD subgroups, and to examine its relation with disease activity index. METHODS Sixty-eight patients with IBD (35 ulcerative colitis [UC] and 33 crohn disease [CD]) and 65 healthy volunteers were included in the study. Rachmilewitz scoring system (endoscopic activity index [EAI]) was used to determine UC activity, and as for CD activity, CD activity index (CDAI) scoring was used. IMA measurement was performed with ELISA kit. RESULTS Ischemia-modified albumin levels in IBD, UC, and CD groups were comparably higher than the control group (37.7 ng/mL vs 42.4 ng/mL vs 36.4 ng/mL vs 21.8 ng/mL, respectively; P < 0.05). In IBD group, a positive correlation was identified between IMA level and CRP (r = 0.325, P = 0.011), EAI(r = 0.302, P = 0.020), and CDAI (r = 0.311, P = 0.013). In stepwise regression model; it was identified that IMA(OR = 1.496; P = 0.016) and CRP(OR = 3.457; P = 0.015) are predictors of IBD in comparison with the control group. In linear regression model, it was identified that risk factors such as log(IMA) and log(CRP) were independent predictors of log(CDAI) and log(EAI) levels. CONCLUSION This is the first study showing that IMA levels in IBD were determined higher in comparison with the control group. Moreover, IMA being a predictor for IBD and being positively correlated with disease activity indexes were determined for the first time in the study. In accordance with these results, it is possible to say that IMA in IBD might be related with the pathogenesis of disease and correlated with the severity of the disease.
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Affiliation(s)
- Mustafa Kaplan
- Department of Gastroenterology, Turkey Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Mahmut Yuksel
- Department of Gastroenterology, Turkey Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Ihsan Ates
- Department of Internal Medicine, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Zeki Mesut Yalın Kilic
- Department of Gastroenterology, Turkey Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Hasan Kilic
- Department of Microbiology, Turkey Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Ufuk Barıs Kuzu
- Department of Gastroenterology, Turkey Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Ertugrul Kayacetin
- Department of Gastroenterology, Turkey Yuksek Ihtisas Training and Research Hospital, Ankara, Turkey
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Wilczak J, Błaszczyk K, Kamola D, Gajewska M, Harasym JP, Jałosińska M, Gudej S, Suchecka D, Oczkowski M, Gromadzka-Ostrowska J. The effect of low or high molecular weight oat beta-glucans on the inflammatory and oxidative stress status in the colon of rats with LPS-induced enteritis. Food Funct 2016; 6:590-603. [PMID: 25520199 DOI: 10.1039/c4fo00638k] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
PURPOSE The aim of the study was to investigate the protective effect of low and high molecular weight beta-glucans on the chosen immunological parameters, markers of antioxidative potential in rats' colon tissue, the number of lactic acid bacteria (LAB) and the concentration of short-chain fatty acids (SCFA) in rats' faeces. METHODS The experiment was carried out on 72 8-week old male Sprague-Dawley rats: control (n = 36) and experimental (n = 36). In half of the animals from each group enteritis was induced by LPS (10 mg kg(-1)). Rats from the experimental group were divided into two groups receiving high (GI) or low (GII) molecular weight beta-glucans for 6 consecutive weeks. RESULTS LPS evoked enteritis in all the treated animals, manifested by changes in the levels of IL-10, IL-12 and TNF-alpha, as well as in the number of intraepithelial lymphocytes (IELs) and lamina propria lymphocytes (LPLs) in the colon tissue. Dietary supplementation with beta-glucans following LPS treatment partially reversed this effect. The changes in SCFA concentration were noted, indicating an improvement of the fermentation process in the colon. This effect coincided with an increased number of LAB, pointing at the prebiotic properties of beta-glucans. The positive influence of beta-glucans was also manifested by the improved values of antioxidative potential markers (TAS, SOD, GR and GPx activity, TBARS concentration), noted especially in rats with LPS-induced enteritis. This influence was more pronounced in the case of low molecular weight oat beta-glucan (GII). CONCLUSIONS The present study showed a positive effect of beta-glucans, especially the low molecular weight form, on the colon tissue of healthy rats, as well as animals with LPS-induced enteritis.
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Affiliation(s)
- Jacek Wilczak
- Division of Dietetics, Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland.
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Antihepatotoxic efficacy of Mangifera indica L. polysaccharides against cyclophosphamide in rats. Chem Biol Interact 2016; 244:113-20. [DOI: 10.1016/j.cbi.2015.11.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/26/2015] [Accepted: 11/06/2015] [Indexed: 12/21/2022]
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Fiorito V, Forni M, Silengo L, Altruda F, Tolosano E. Crucial Role of FLVCR1a in the Maintenance of Intestinal Heme Homeostasis. Antioxid Redox Signal 2015; 23:1410-23. [PMID: 26067085 DOI: 10.1089/ars.2014.6216] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
AIMS The maintenance of heme homeostasis, mucosa cell renewal, and redox environment in the intestine is essential to permit digestion, absorption, cell proliferation, cell apoptosis, and immune response and to avoid the development of gut disorders. The feline leukemia virus, subgroup C, receptor 1a (FLVCR1a) is a heme exporter expressed in almost all cell types, including intestinal cells. This work investigates the role of FLVCR1a in the intestine, taking advantage of an intestine-specific conditional Flvcr1a-knockout mouse and of FLVCR1a-depleted Caco2 cells. RESULTS The data show that FLVCR1a does not participate in the absorption of dietary heme, whereas it is involved in the export of de novo synthesized heme from intestinal cells. The loss of Flvcr1a is associated with a decrease of intestinal cell proliferation and with alterations in the peculiar homeostasis of proliferating cells, including the maintenance of their redox status. The involvement of FLVCR1a in these processes renders this exporter crucial for the survival of mice in a model of ulcerative colitis. INNOVATION These findings shed light on the role of heme export in the dietary heme absorption process and unravel a new role for heme export in the control of mucosal renewal and in proliferating cell redox status and metabolic activity, demonstrating a crucial role for FLVCR1a in maintaining intestinal homeostasis in both physiologic and pathologic situations. CONCLUSION By exporting the excess of de novo synthesized heme from intestinal cells, FLVCR1a participates in the control of intestinal mucosa homeostasis.
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Affiliation(s)
- Veronica Fiorito
- 1 Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Marco Forni
- 2 EuroClone S.p.A Research Laboratory, Molecular Biotechnology Centre (MBC), University of Torino , Torino, Italy
| | - Lorenzo Silengo
- 1 Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Fiorella Altruda
- 1 Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Emanuela Tolosano
- 1 Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
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De Weirdt R, Van de Wiele T. Micromanagement in the gut: microenvironmental factors govern colon mucosal biofilm structure and functionality. NPJ Biofilms Microbiomes 2015; 1:15026. [PMID: 28721237 PMCID: PMC5515210 DOI: 10.1038/npjbiofilms.2015.26] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/25/2015] [Accepted: 10/04/2015] [Indexed: 01/01/2023] Open
Abstract
The human gut microbiome provides us with functional features that we did not have to evolve ourselves and can be viewed as a structured microbial community that operates like a microbial organ within the human host. A minor but important part of this microbiome is the ability to colonise and thrive within the mucous layer that covers the colon epithelium. These mucosal microbes intimately interact with the intestinal tissue and seem to be important modulators of human health. Embedded in the host-secreted mucous matrix, they form a 'mucosal biofilm' with a distinct composition and functionality. In this review, we provide evidence that six specific (micro)environmental factors near the colon mucosa shape and determine mucosal biofilm formation and stability, that is, (1) mucous rigidity, (2) gradients of fluid shear, (3) radial oxygen gradients, (4) secretions of host defense molecules, (5) the presence of a rich but challenging nutrient platform and (6) the presence of niches at the colon epithelial surface. In addition, it appears that microbes actively participate in shaping their mucosal environment. Current insights into the interaction between mucosal microbes and their environment are rather limited, and many questions regarding the contribution of mucosal biofilm functionality and stability to human health remain to be answered. Yet, given the higher potency of mucosal microbes than their luminal counterparts to interact with the host, new insights can accelerate the development of novel disease-preventive or therapeutic strategies.
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Affiliation(s)
- Rosemarie De Weirdt
- Laboratory of Microbial Ecology and Technology (LabMET), Ghent University, Gent, Belgium
| | - Tom Van de Wiele
- Laboratory of Microbial Ecology and Technology (LabMET), Ghent University, Gent, Belgium
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Dussauze M, Danion M, Le Floch S, Lemaire P, Pichavant-Rafini K, Theron M. Innate immunity and antioxidant systems in different tissues of sea bass (Dicentrarchus labrax) exposed to crude oil dispersed mechanically or chemically with Corexit 9500. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 120:270-278. [PMID: 26093109 DOI: 10.1016/j.ecoenv.2015.06.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 06/02/2015] [Accepted: 06/05/2015] [Indexed: 06/04/2023]
Abstract
The aim of the study was to evaluate effects of chemically dispersed oil by the dispersant Corexit 9500 on innate immunity and redox defenses in a marine model fish. Sea bass (Dicentrarchus labrax) were exposed 48h to four experimental conditions: a control group (C), a group only exposed to the dispersant (D; 3.6mg/L) and two groups exposed to 80mg/L oil mechanically or chemically dispersed (MD; CD). Alternative pathway of complement activity and lysozyme concentration was measured in plasma in order to evaluate the general fish health status. Total glutathione, glutathione peroxidase (GPX) and superoxide dismutase (SOD) were analyzed in gills, liver, brain, intestine and muscle. The chemical dispersion induced a significant reduction of lysozyme concentration when compared to the controls, and the hemolytic activity of the alternative complement pathway was increased in mechanical and chemical dispersion. The analysis of SOD, GPX and total glutathione showed that antioxidant defenses were activated in liver and reduced in intestine and brain. Dispersant was also responsible for an SOD activity inhibition in these two last tissues, demonstrating a direct effect of this dispersant on reactive oxygen species homeostasis that can be interpreted as a signal of tissue toxicity. This result should raise concern about the use of dispersants and show that they can lead to adverse effects on marine species.
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Affiliation(s)
- Matthieu Dussauze
- Laboratoire ORPHY EA4324, Université de Bretagne Occidentale, 6 Avenue le Gorgeu, CS 93 837, 29 238 Brest Cedex 3, France; Cedre, Centre de Documentation, de Recherche et d'Expérimentations sur les Pollutions Accidentelles des Eaux, 715 rue Alain Colas, CS 41 836, Brest Cedex 2, France.
| | - Morgane Danion
- ANSES, Ploufragan-Plouzané Laboratory, Unit of Viral Pathology in Fish, Technopôle Brest-Iroise, 29280 Plouzané, France
| | - Stéphane Le Floch
- Cedre, Centre de Documentation, de Recherche et d'Expérimentations sur les Pollutions Accidentelles des Eaux, 715 rue Alain Colas, CS 41 836, Brest Cedex 2, France
| | | | - Karine Pichavant-Rafini
- Cedre, Centre de Documentation, de Recherche et d'Expérimentations sur les Pollutions Accidentelles des Eaux, 715 rue Alain Colas, CS 41 836, Brest Cedex 2, France
| | - Michaël Theron
- Cedre, Centre de Documentation, de Recherche et d'Expérimentations sur les Pollutions Accidentelles des Eaux, 715 rue Alain Colas, CS 41 836, Brest Cedex 2, France
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Mathew B, Nagaraj R. Antimicrobial activity of human α-defensin 6 analogs: insights into the physico-chemical reasons behind weak bactericidal activity of HD6 in vitro. J Pept Sci 2015; 21:811-8. [PMID: 26400692 DOI: 10.1002/psc.2821] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 07/29/2015] [Accepted: 08/19/2015] [Indexed: 01/07/2023]
Abstract
Human α-defensin 6 (HD6), unlike other mammalian defensins, does not exhibit bactericidal activity, particularly against aerobic bacteria. Monomeric HD6 has a tertiary structure similar to other α-defensins in the crystalline state. However, the physico-chemical reasons behind the lack of antibacterial activity of HD6 are yet to be established unequivocally. In this study, we have investigated the antimicrobial activity of HD6 analogs. A linear analog of HD6, in which the distribution of arginine residues was similar to active α-defensins, shows broad-spectrum antimicrobial activity, indicating that atypical distribution of arginine residues contributes to the inactivity of HD6. Peptides spanning the N-terminal cationic segment were active against a wide range of organisms. Antimicrobial potency of these shorter analogs was further enhanced when myristic acid was conjugated at the N-terminus. Cytoplasmic localization of the analogs without fatty acylation was observed to be necessary for bacterial killing, while they exhibited fungicidal activity by permeabilizing Candida albicans membranes. Myristoylated analogs and the linear full-length arginine analog exhibited activity by permeabilizing bacterial and fungal membranes. Our study provides insights into the lack of bactericidal activity of HD6 against aerobic bacteria.
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Affiliation(s)
- Basil Mathew
- CSIR - Centre for Cellular and Molecular Biology, Hyderabad, 500 007, India
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Abstract
Many organisms have developed a robust ability to adapt and survive in the face of environmental perturbations that threaten the integrity of their genome, proteome, or metabolome. Studies in multiple model organisms have shown that, in general, when exposed to stress, cells activate a complex prosurvival signaling network that includes immune and DNA damage response genes, chaperones, antioxidant enzymes, structural proteins, metabolic enzymes, and noncoding RNAs. The manner of activation runs the gamut from transcriptional induction of genes to increased stability of transcripts to posttranslational modification of important biosynthetic proteins within the stressed tissue. Superimposed on these largely autonomous effects are nonautonomous responses in which the stressed tissue secretes peptides and other factors that stimulate tissues in different organs to embark on processes that ultimately help the organism as a whole cope with stress. This review focuses on the mechanisms by which tissues in one organ adapt to environmental challenges by regulating stress responses in tissues of different organs.
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Affiliation(s)
- Edward Owusu-Ansah
- Department of Physiology and Cellular Biophysics, Columbia University Medical Center, New York, NY 10032;
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