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Armaleo D, Müller O, Lutzoni F, Andrésson ÓS, Blanc G, Bode HB, Collart FR, Dal Grande F, Dietrich F, Grigoriev IV, Joneson S, Kuo A, Larsen PE, Logsdon JM, Lopez D, Martin F, May SP, McDonald TR, Merchant SS, Miao V, Morin E, Oono R, Pellegrini M, Rubinstein N, Sanchez-Puerta MV, Savelkoul E, Schmitt I, Slot JC, Soanes D, Szövényi P, Talbot NJ, Veneault-Fourrey C, Xavier BB. The lichen symbiosis re-viewed through the genomes of Cladonia grayi and its algal partner Asterochloris glomerata. BMC Genomics 2019; 20:605. [PMID: 31337355 PMCID: PMC6652019 DOI: 10.1186/s12864-019-5629-x] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 03/20/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Lichens, encompassing 20,000 known species, are symbioses between specialized fungi (mycobionts), mostly ascomycetes, and unicellular green algae or cyanobacteria (photobionts). Here we describe the first parallel genomic analysis of the mycobiont Cladonia grayi and of its green algal photobiont Asterochloris glomerata. We focus on genes/predicted proteins of potential symbiotic significance, sought by surveying proteins differentially activated during early stages of mycobiont and photobiont interaction in coculture, expanded or contracted protein families, and proteins with differential rates of evolution. RESULTS A) In coculture, the fungus upregulated small secreted proteins, membrane transport proteins, signal transduction components, extracellular hydrolases and, notably, a ribitol transporter and an ammonium transporter, and the alga activated DNA metabolism, signal transduction, and expression of flagellar components. B) Expanded fungal protein families include heterokaryon incompatibility proteins, polyketide synthases, and a unique set of G-protein α subunit paralogs. Expanded algal protein families include carbohydrate active enzymes and a specific subclass of cytoplasmic carbonic anhydrases. The alga also appears to have acquired by horizontal gene transfer from prokaryotes novel archaeal ATPases and Desiccation-Related Proteins. Expanded in both symbionts are signal transduction components, ankyrin domain proteins and transcription factors involved in chromatin remodeling and stress responses. The fungal transportome is contracted, as are algal nitrate assimilation genes. C) In the mycobiont, slow-evolving proteins were enriched for components involved in protein translation, translocation and sorting. CONCLUSIONS The surveyed genes affect stress resistance, signaling, genome reprogramming, nutritional and structural interactions. The alga carries many genes likely transferred horizontally through viruses, yet we found no evidence of inter-symbiont gene transfer. The presence in the photobiont of meiosis-specific genes supports the notion that sexual reproduction occurs in Asterochloris while they are free-living, a phenomenon with implications for the adaptability of lichens and the persistent autonomy of the symbionts. The diversity of the genes affecting the symbiosis suggests that lichens evolved by accretion of many scattered regulatory and structural changes rather than through introduction of a few key innovations. This predicts that paths to lichenization were variable in different phyla, which is consistent with the emerging consensus that ascolichens could have had a few independent origins.
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Affiliation(s)
| | - Olaf Müller
- Department of Biology, Duke University, Durham, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, USA
| | | | - Ólafur S. Andrésson
- Faculty of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland
| | - Guillaume Blanc
- Aix Marseille University, Université de Toulon, CNRS, IRD, MIO UM 110, 13288 Marseille, France
| | - Helge B. Bode
- Molekulare Biotechnologie, Fachbereich Biowissenschaften & Buchmann Institute for Molecular Life Sciences (BMLS), Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Frank R. Collart
- Argonne National Laboratory, Biosciences Division, Argonne, & Department of Bioengineering, University of Illinois at Chicago, Chicago, USA
| | - Francesco Dal Grande
- Senckenberg Biodiversity and Climate Research Center (SBiK-F), Frankfurt am Main, Germany
| | - Fred Dietrich
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, USA
| | - Igor V. Grigoriev
- US Department of Energy Joint Genome Institute, Walnut Creek, USA
- Department of Plant and Microbial Biology, University of California – Berkeley, Berkeley, USA
| | - Suzanne Joneson
- Department of Biology, Duke University, Durham, USA
- College of General Studies, University of Wisconsin - Milwaukee at Waukesha, Waukesha, USA
| | - Alan Kuo
- US Department of Energy Joint Genome Institute, Walnut Creek, USA
| | - Peter E. Larsen
- Argonne National Laboratory, Biosciences Division, Argonne, & Department of Bioengineering, University of Illinois at Chicago, Chicago, USA
| | | | | | - Francis Martin
- INRA, Université de Lorraine, Interactions Arbres-Microorganismes, INRA-Nancy, Champenoux, France
| | - Susan P. May
- Department of Biology, Duke University, Durham, USA
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, USA
| | - Tami R. McDonald
- Department of Biology, Duke University, Durham, USA
- Department of Biology, St. Catherine University, St. Paul, USA
| | - Sabeeha S. Merchant
- Department of Plant and Microbial Biology, University of California – Berkeley, Berkeley, USA
- Department of Molecular and Cell Biology, University of California – Berkeley, Berkeley, USA
| | - Vivian Miao
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, Canada
| | - Emmanuelle Morin
- INRA, Université de Lorraine, Interactions Arbres-Microorganismes, INRA-Nancy, Champenoux, France
| | - Ryoko Oono
- Department of Ecology, Evolution, and Marine Biology, University of California - Santa Barbara, Santa Barbara, USA
| | - Matteo Pellegrini
- Department of Molecular, Cell, and Developmental Biology, and DOE Institute for Genomics and Proteomics, University of California, Los Angeles, USA
| | - Nimrod Rubinstein
- National Evolutionary Synthesis Center, Durham, USA
- Calico Life Sciences LLC, South San Francisco, USA
| | | | | | - Imke Schmitt
- Senckenberg Biodiversity and Climate Research Center (SBiK-F), Frankfurt am Main, Germany
- Institute of Ecology, Evolution and Diversity, Fachbereich Biowissenschaften, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Jason C. Slot
- College of Food, Agricultural, and Environmental Sciences, Department of Plant Pathology, The Ohio State University, Columbus, USA
| | - Darren Soanes
- College of Life & Environmental Sciences, University of Exeter, Exeter, UK
| | - Péter Szövényi
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | | | - Claire Veneault-Fourrey
- INRA, Université de Lorraine, Interactions Arbres-Microorganismes, INRA-Nancy, Champenoux, France
- Université de Lorraine, INRA, Interactions Arbres-Microorganismes, Faculté des Sciences et Technologies, Vandoeuvre les Nancy Cedex, France
| | - Basil B. Xavier
- Faculty of Life and Environmental Sciences, University of Iceland, Reykjavík, Iceland
- Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute, University of Antwerp, Antwerp, Belgium
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52
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Paradela-Dobarro B, Bravo SB, Rozados-Luís A, González-Peteiro M, Varela-Román A, González-Juanatey JR, García-Seara J, Alvarez E. Inflammatory effects of in vivo glycated albumin from cardiovascular patients. Biomed Pharmacother 2019; 113:108763. [DOI: 10.1016/j.biopha.2019.108763] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 03/01/2019] [Accepted: 03/06/2019] [Indexed: 10/27/2022] Open
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Nakayoshi T, Kato K, Kurimoto E, Oda A. Possible Mechanisms of Nonenzymatic Formation of Dehydroalanine Residue Catalyzed by Dihydrogen Phosphate Ion. J Phys Chem B 2019; 123:3147-3155. [PMID: 30916562 DOI: 10.1021/acs.jpcb.8b10386] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Uncommon crosslinked amino acids have been identified in several aging tissues and are suspected to trigger various age-related diseases. Several uncommon residues are formed when the dehydroalanine (Dha) residue undergoes a nucleophilic attack by surrounding residues. Dha residues are considered to be formed by posttranslational modification of serine (Ser) and cysteine residues. In the present study, we investigated the Dha residue formation mechanism catalyzed by dihydrogen phosphate ion (H2PO4-) using quantum chemical calculations. We obtained optimized geometries using the B3LYP density functional method and carried out single-point energy calculations using the second-order Møller-Plesset perturbation method. All calculations were performed using Ace-Ser-Nme (Ace = acetyl, Nme = methylamino) as a model compound. Results of the computational analysis suggest that the mechanism underlying the Dha residue formation from Ser consists of two steps: enolization and 1,3-elimination. The H2PO4- catalyzed both reactions as a proton-relay mediator. The calculated activation barrier for Dha residue formation was estimated as 30.4 kcal mol-1. In this pathway, the catalytic H2PO4- interacts with the Ser residue α-proton, carbonyl oxygen of Ser, and C-terminal side adjacent residues, and the calculated activation energy produced was the same as the experimentally reported value for nonenzymatic modifications of amino acid residues. Therefore, our calculation suggests that H2PO4--catalyzed Ser residue dehydration can proceed nonenzymatically.
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Affiliation(s)
- Tomoki Nakayoshi
- Graduate School of Pharmacy , Meijo University , 150 Yagotoyama , Tempaku-ku, Nagoya , Aichi 468-8503 , Japan.,Institute of Medical, Pharmaceutical and Health Sciences , Kanazawa University , Kakuma-machi , Kanazawa , Ishikawa 920-1192 , Japan
| | - Koichi Kato
- Graduate School of Pharmacy , Meijo University , 150 Yagotoyama , Tempaku-ku, Nagoya , Aichi 468-8503 , Japan.,Department of Pharmacy , Kinjo Gakuin University , 2-1723 Omori , Moriyama-ku, Nagoya , Aichi 463-8521 , Japan
| | - Eiji Kurimoto
- Graduate School of Pharmacy , Meijo University , 150 Yagotoyama , Tempaku-ku, Nagoya , Aichi 468-8503 , Japan
| | - Akifumi Oda
- Graduate School of Pharmacy , Meijo University , 150 Yagotoyama , Tempaku-ku, Nagoya , Aichi 468-8503 , Japan.,Institute for Protein Research , Osaka University , 3-2 Yamadaoka, Suita , Osaka 565-0871 , Japan
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54
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Perween S, Abidi M, Faizy AF, Moinuddin. Post-translational modifications on glycated plasma fibrinogen: A physicochemical insight. Int J Biol Macromol 2019; 126:1201-1212. [DOI: 10.1016/j.ijbiomac.2019.01.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 12/11/2018] [Accepted: 01/04/2019] [Indexed: 12/29/2022]
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55
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Gateva AT, Assyov YS, Tsakova AD, Kamenov ZA. Serum AGEs and sRAGE levels are not related to vascular complications in patients with prediabetes. Diabetes Metab Syndr 2019; 13:1005-1010. [PMID: 31336435 DOI: 10.1016/j.dsx.2019.01.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 01/17/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND While hyperglycemia has a key role in the pathogenesis of microvascular complications of diabetes, it is just one of the many factors contributing to macrovascular damage. The aim of the present study is to investigate the link between serum pentosidine and sRAGE levels and vascular complications in patients with prediabetes compared to normal glucose tolerance controls with obesity. METHODS In this study were included 76 patients with mean age 50.7 ± 10.7 years, divided into two age and BMI-matched groups - group 1 with obesity without glycemic disturbances (n = 38) and group 2 with obesity and prediabetes (n = 38). RESULTS There was no significant difference in pentosidine and sRAGE levels between patients with obesity and prediabetes. Patients with hypertension had lower levels of sRAGE compared to nonhypertensive subjects. sRAGE showed a weak negative correlation to blood glucose on 60th min of OGTT and HOMA index. There was no correlation between sRAGE and pentosidine levels and the markers of micro- and macrovascular complications. There was no difference in sRAGE and pentosidine levels between patients with and without endothelial dysfunction. CONCLUSIONS sRAGE and pentosidine levels are similar in patients with obesity with and without prediabetes and do not correlate to the markers of micro- and macrovascular complications.
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Affiliation(s)
- Antoaneta T Gateva
- Clinic of Endocrinology, University Hospital "Alexandrovska", Medical University-Sofia, 1 Georgi Sofiiski str, 1431, Sofia, Bulgaria.
| | - Yavor S Assyov
- Clinic of Endocrinology, University Hospital "Alexandrovska", Medical University-Sofia, 1 Georgi Sofiiski str, 1431, Sofia, Bulgaria
| | - Adelina D Tsakova
- Central Clinical Laboratory, University Hospital "Alexandrovska", Medical University-Sofia, 1 Georgi Sofiiski str, 1431, Sofia, Bulgaria
| | - Zdravko A Kamenov
- Clinic of Endocrinology, University Hospital "Alexandrovska", Medical University-Sofia, 1 Georgi Sofiiski str, 1431, Sofia, Bulgaria
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56
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Perkins RK, Miranda ER, Karstoft K, Beisswenger PJ, Solomon TPJ, Haus JM. Experimental Hyperglycemia Alters Circulating Concentrations and Renal Clearance of Oxidative and Advanced Glycation End Products in Healthy Obese Humans. Nutrients 2019; 11:nu11030532. [PMID: 30823632 PMCID: PMC6471142 DOI: 10.3390/nu11030532] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 02/07/2023] Open
Abstract
The purpose of this investigation was to evaluate the effects of experimental hyperglycemia on oxidative damage (OX), advanced glycation end products (AGEs), and the receptor for AGEs (RAGE) through an in vivo approach. Obese subjects (n = 10; 31.2 ± 1.2 kg·m−2; 56 ± 3 years) underwent 24 h of hyperglycemic clamp (+5.4 mM above basal), where plasma at basal and after 2 h and 24 h of hyperglycemic challenge were assayed for OX (methionine sulfoxide, MetSO, and aminoadipic acid, AAA) and AGE-free adducts (Ne-carboxymethyllysine, CML; Ne-carboxyethyllysine, CEL; glyoxal hydroimidazolone-1, GH-1; methylglyoxal hydroimidazolone-1, MG-H1; and 3-deoxyglucosone hydroimidazolone, 3DG-H) via liquid chromatography–tandem mass spectrometry (LC–MS/MS). Urine was also analyzed at basal and after 24 h for OX and AGE-free adducts and plasma soluble RAGE (sRAGE) isoforms (endogenous secretory RAGE, esRAGE, and cleaved RAGE, cRAGE), and inflammatory markers were determined via enzyme-linked immunosorbent assay (ELISA). Skeletal muscle tissue collected via biopsy was probed at basal, 2 h, and 24 h for RAGE and OST48 protein expression. Plasma MetSO, AAA, CEL, MG-H1, and G-H1 decreased (−18% to −47%; p < 0.05), while CML increased (72% at 24 h; p < 0.05) and 3DG-H remained unchanged (p > 0.05) with the hyperglycemic challenge. Renal clearance of MetSO, AAA, and G-H1 increased (599% to 1077%; p < 0.05), CML decreased (−30%; p < 0.05), and 3DG-H, CEL, and MG-H1 remained unchanged (p > 0.05). Fractional excretion of MetSO, AAA, CEL, G-H1, and MG-H1 increased (5.8% to 532%; p < 0.05) and CML and 3DG-H remained unchanged (p > 0.05). Muscle RAGE and OST48 expression, plasma sRAGE, IL-1β, IL-1Ra, and TNFα remained unchanged (p > 0.05), while IL-6 increased (159% vs. basal; p > 0.05). These findings suggest that individuals who are obese but otherwise healthy have the capacity to prevent accumulation of OX and AGEs during metabolic stress by increasing fractional excretion and renal clearance.
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Affiliation(s)
- Ryan K Perkins
- School of Kinesiology, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Edwin R Miranda
- School of Kinesiology, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Kristian Karstoft
- Centre of Inflammation and Metabolism and Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, DK-2100 Copenhagen, Denmark.
| | - Paul J Beisswenger
- Geisel School of Medicine, Dartmouth College, PreventAGE Healthcare, 16 Cavendish Court, Lebanon, NH 03766, USA.
| | - Thomas P J Solomon
- School of Sport, Exercise, and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, West Midlands B15 2TT, UK.
- Institute of Metabolism and Systems Research (IMSR), College of Medical and Dental Sciences, University of Birmingham, Birmingham, West Midlands B15 2TT, UK.
| | - Jacob M Haus
- School of Kinesiology, University of Michigan, Ann Arbor, MI 48109, USA.
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Reddy HM, Sharma A, Dehzangi A, Shigemizu D, Chandra AA, Tsunoda T. GlyStruct: glycation prediction using structural properties of amino acid residues. BMC Bioinformatics 2019; 19:547. [PMID: 30717650 PMCID: PMC7394324 DOI: 10.1186/s12859-018-2547-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 11/29/2018] [Indexed: 02/06/2023] Open
Abstract
Background Glycation is a one of the post-translational modifications (PTM) where sugar molecules and residues in protein sequences are covalently bonded. It has become one of the clinically important PTM in recent times attributed to many chronic and age related complications. Being a non-enzymatic reaction, it is a great challenge when it comes to its prediction due to the lack of significant bias in the sequence motifs. Results We developed a classifier, GlyStruct based on support vector machine, to predict glycated and non-glycated lysine residues using structural properties of amino acid residues. The features used were secondary structure, accessible surface area and the local backbone torsion angles. For this work, a benchmark dataset was extracted containing 235 glycated and 303 non-glycated lysine residues. GlyStruct demonstrated improved performance of approximately 10% in comparison to benchmark method of Gly-PseAAC. The performance for GlyStruct on the metrics, sensitivity, specificity, accuracy and Mathew’s correlation coefficient were 0.7013, 0.7989, 0.7562, and 0.5065, respectively for 10-fold cross-validation. Conclusion Glycation has emerged to be one of the clinically important PTM of proteins in recent times. Therefore, the development of computational tools become necessary to predict glycation, which could help medical professionals administer drugs and manage patients more effectively. The proposed predictor manages to classify glycated and non-glycated lysine residues with promising results consistently on various cross-validation schemes and outperforms other state of the art methods. Electronic supplementary material The online version of this article (10.1186/s12859-018-2547-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Alok Sharma
- School of Engineering & Physics, University of the South Pacific, Suva, Fiji. .,Laboratory for Medical Science Mathematics, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan. .,Institute for Integrated and Intelligent Systems, Griffith University, Brisbane, Australia. .,CREST, JST, Tokyo, Japan.
| | - Abdollah Dehzangi
- Department of Computer Science, Morgan State University, Baltimore, MD, USA
| | - Daichi Shigemizu
- Laboratory for Medical Science Mathematics, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan.,CREST, JST, Tokyo, Japan.,Division of Genomic Medicine, Medical Genome Center, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.,Department of Medical Science Mathematics, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Tatushiko Tsunoda
- Laboratory for Medical Science Mathematics, RIKEN Center for Integrative Medical Sciences, Tokyo, Japan.,CREST, JST, Tokyo, Japan.,Department of Medical Science Mathematics, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
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58
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Mohammadzadeh Honarvar N, Zarezadeh M, Khorshidi M, Makhdoomi Arzati M, Yekaninejad MS, Abdollahi M, Effatpanah M, Hashemi R, Saedisomeolia A. The effect of an oral ginger supplementation on NF-κB concentration in peripheral blood mononuclear cells and anthropomorphic data of patients with type 2 diabetes: A randomized double-blind, placebo-controlled clinical trial. Complement Ther Med 2019; 42:7-11. [PMID: 30670285 DOI: 10.1016/j.ctim.2018.10.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 10/13/2018] [Accepted: 10/23/2018] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION The complications of diabetes are extensive which can be caused by excessive oxidative stress, inflammation and impaired insulin system. Plant-sourced bioactive compounds can reduce inflammation and oxidative stress. The aim of present study was to determine the effect of ginger supplementation on diabetic complications. METHODS The present study is a randomized double blind clinical trial which is conducted with 48 diabetic patients. The participants were randomly divided into two intervention and placebo groups which were received 2 g ginger powder and 2 g wheat flour respectively for 10 weeks. Nuclear factor kappa B (NF-κB) concentration and anthropometric measurements were evaluated at the baseline and at the end of study. RESULTS The effect of ginger supplementation on hip circumference was marginal and there was no significant effect on BMI and waist circumference. Mean NF-κB p65 concentrations were reduced in ginger supplementation group, however, the amount was not statistically significant. CONCLUSION Ginger supplementation had significant effects on anthropometric evaluations. Ginger supplementation decreased mean NF-κB concentration in comparison with placebo, however the significance level was marginal. In order to achieve reliable information, more researches should be complemented with uptake of other diagnostic tools.
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Affiliation(s)
- Niyaz Mohammadzadeh Honarvar
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
| | - Meysam Zarezadeh
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
| | - Masoud Khorshidi
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
| | - Motahareh Makhdoomi Arzati
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mir Saeed Yekaninejad
- Department of Biostatistics and Epidemiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mina Abdollahi
- AmirAlam Hospital Complex, Marvasti Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Effatpanah
- School of Medicine, Ziaeian Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Rezvan Hashemi
- Department of Geriatric Medicine, Ziaeian Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Ahmad Saedisomeolia
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
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Chaplin AK, Chernukhin I, Bechtold U. Profiling of advanced glycation end products uncovers abiotic stress-specific target proteins in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:653-670. [PMID: 30395279 PMCID: PMC6322573 DOI: 10.1093/jxb/ery389] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/12/2018] [Indexed: 05/03/2023]
Abstract
Non-enzymatic post-translational modifications of proteins can occur when the nucleophilic amino acid side chains of lysine and arginine encounter a reactive metabolite to form advanced glycation end products (AGEs). Glycation arises predominantly from the degradation of reducing sugars, and glycation has been observed during metabolic stress from glucose metabolism in both animals and plants. The implications of glycating proteins on plant proteins and biology has received little attention, and here we describe a robust assessment of global glycation profiles. We identified 112 glycated proteins that were common under a range of growth conditions and abiotic stress treatments, but also showed rosette age, diurnal, and drought stress-specific targets. Among 18 drought stress-specific glycation targets included several thioredoxin and thioredoxin-like proteins. In vitro glycation of two carbohydrate metabolism enzymes led either to a reduction or to a complete inhibition of activity, demonstrating the impact of glycation on protein function. Taken together, our results suggest that stress-specific glycation patterns of a small number of regulatory proteins may have a much broader impact on downstream target proteins that are, for example, associated with primary metabolism.
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Affiliation(s)
- Amanda K Chaplin
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, UK
| | - Igor Chernukhin
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, UK
| | - Ulrike Bechtold
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, UK
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Klee NS, McCarthy CG, Lewis S, McKenzie JL, Vincent JE, Webb RC. Urothelial Senescence in the Pathophysiology of Diabetic Bladder Dysfunction-A Novel Hypothesis. Front Surg 2018; 5:72. [PMID: 30564582 PMCID: PMC6288180 DOI: 10.3389/fsurg.2018.00072] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/12/2018] [Indexed: 12/11/2022] Open
Abstract
Diabetic bladder dysfunction (DBD) is a well-recognized and common symptom affecting up to 50% of all diabetic patients. DBD has a broad range of clinical presentations ranging from overactive to underactive bladder symptoms that develops in middle-aged to elderly patients with long standing and poorly controlled diabetes. Low efficacy of current therapeutics and lifestyle interventions combined with high national healthcare costs highlight the need for more research into bladder dysfunction pathophysiology and novel treatment options. Cellular senescence is an age-related physiologic process in which cells undergo irreversible growth arrest induced by replicative exhaustion and damaging insults. While controlled senescence negatively regulates cell proliferation and promotes tissue regeneration, uncontrolled senescence is known to result in tissue dysfunction through enhanced secretion of inflammatory factors. This review presents previous scientific findings and current hypotheses that characterize diabetic bladder dysfunction. Further, we propose the novel hypothesis that cellular senescence within the urothelial layer of the bladder contributes to the pro-inflammatory/pro-oxidant environment and symptoms of diabetic bladder dysfunction. Our results show increased cellular senescence in the urothelial layer of the bladder; however, whether this phenomenon is the cause or effect of DBD is unknown. The urothelial layer of the bladder is made up of transitional epithelia specialized to contract and expand with demand and plays an active role in transmission by modulating afferent activity. Transition from normal functioning urothelial cells to secretory senescence cells would not only disrupt the barrier function of this layer but may result in altered signaling and sensation of bladder fullness; dysfunction of this layer is known to result in symptoms of frequency and urgency. Future DBD therapeutics may benefit from targeting and preventing early transition of urothelial cells to senescent cells.
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Affiliation(s)
- Nicole S Klee
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Cameron G McCarthy
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States
| | - Steven Lewis
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Jaine L McKenzie
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States.,Department of Surgery, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - Julie E Vincent
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
| | - R Clinton Webb
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States
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Satari M, Aghadavod E, Mobini M, Asemi Z. Association between miRNAs expression and signaling pathways of oxidative stress in diabetic retinopathy. J Cell Physiol 2018; 234:8522-8532. [PMID: 30478922 DOI: 10.1002/jcp.27801] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 10/31/2018] [Indexed: 12/12/2022]
Abstract
Diabetic retinopathy (DR) is a major cause of vision reduction in diabetic patients. Hyperglycemia is a known instigator for the development of DR, even though the role of oxidative stress pathways in the pathogenesis of DR is established. The studies indicate that microRNAs (miRNAs) are significant to the etiology of DR; changes in miRNAs expression levels may be associated with onset and progression of DR. In addition, miRNAs have emerged as a useful disease marker due to their availability and stability in detecting the severity of DR. The relationship between miRNAs expression levels and oxidative stress pathways has been investigated in several studies. The aim of this study is the examination of function and expression levels of target miRNAs in oxidative stress pathway and pathogenesis of diabetic retinopathy.
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Affiliation(s)
- Mahbobeh Satari
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Depatrment of Biochemistry, Kashan University of Medical Sciences, Kashan, Iran
| | - Esmat Aghadavod
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Depatrment of Biochemistry, Kashan University of Medical Sciences, Kashan, Iran
| | - Moein Mobini
- Department of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Depatrment of Biochemistry, Kashan University of Medical Sciences, Kashan, Iran
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Laleethambika N, Anila V, Manojkumar C, Muruganandam I, Giridharan B, Ravimanickam T, Balachandar V. Diabetes and Sperm DNA Damage: Efficacy of Antioxidants. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s42399-018-0012-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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63
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Carrizzo A, Izzo C, Oliveti M, Alfano A, Virtuoso N, Capunzo M, Di Pietro P, Calabrese M, De Simone E, Sciarretta S, Frati G, Migliarino S, Damato A, Ambrosio M, De Caro F, Vecchione C. The Main Determinants of Diabetes Mellitus Vascular Complications: Endothelial Dysfunction and Platelet Hyperaggregation. Int J Mol Sci 2018; 19:ijms19102968. [PMID: 30274207 PMCID: PMC6212935 DOI: 10.3390/ijms19102968] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 09/26/2018] [Accepted: 09/27/2018] [Indexed: 12/24/2022] Open
Abstract
Diabetes mellitus is a common disease that affects 3–5% of the general population in Italy. In some countries of northern Europe or in North America, it can even affect 6–8% of the population. Of great concern is that the number of cases of diabetes is constantly increasing, probably due to the increase in obesity and the sedentary nature of the population. According to the World Health Organization, in the year 2030 there will be 360 million people with diabetes, compared to 170 million in 2000. This has important repercussions on the lives of patients and their families, and on health systems that offer assistance to patients. In this review, we try to describe in an organized way the pathophysiological continuity between diabetes mellitus, endothelial dysfunction, and platelet hyperaggregation, highlighting the main molecular mechanisms involved and the interconnections.
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Affiliation(s)
| | - Carmine Izzo
- Departement of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy.
| | - Marco Oliveti
- Departement of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy.
| | - Antonia Alfano
- Heart Department, A.O.U. "San Giovanni di Dio e Ruggi d'Aragona", 84131 Salerno, Italy.
| | - Nicola Virtuoso
- Department of Cardiovascular Medicine, A.O.U. Federico II, 80131 Naples, Italy.
| | - Mario Capunzo
- Departement of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy.
| | - Paola Di Pietro
- Departement of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy.
| | | | - Eros De Simone
- Heart Department, A.O.U. "San Giovanni di Dio e Ruggi d'Aragona", 84131 Salerno, Italy.
| | - Sebastiano Sciarretta
- IRCCS Neuromed, 86077 Pozzilli, IS, Italy.
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, 00161 Rome, Italy.
| | - Giacomo Frati
- IRCCS Neuromed, 86077 Pozzilli, IS, Italy.
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, 00161 Rome, Italy.
| | - Serena Migliarino
- Department of Clinical and Molecular Medicine, School of Medicine and Psychology, Sapienza University of Rome, 00161 Rome, Italy.
| | | | | | - Francesco De Caro
- Departement of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy.
| | - Carmine Vecchione
- IRCCS Neuromed, 86077 Pozzilli, IS, Italy.
- Departement of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy.
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64
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Sawada N, Arany Z. Metabolic Regulation of Angiogenesis in Diabetes and Aging. Physiology (Bethesda) 2018; 32:290-307. [PMID: 28615313 DOI: 10.1152/physiol.00039.2016] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/24/2017] [Accepted: 04/05/2017] [Indexed: 12/16/2022] Open
Abstract
Impaired angiogenesis and endothelial dysfunction are hallmarks of diabetes and aging. Clinical efforts at promoting angiogenesis have largely focused on growth factor pathways, with mixed results. Recently, a new repertoire of endothelial intracellular molecules critical to endothelial metabolism has emerged as playing an important role in regulating angiogenesis. This review thus focuses on the emerging importance and therapeutic potential of these proteins and of endothelial bioenergetics in diabetes and aging.
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Affiliation(s)
- Naoki Sawada
- Department of Cell Biology and Molecular Medicine, Rutgers, The State University of New Jersey, New Jersey Medical School, Newark, New Jersey.,Department of Cell Biology and Molecular Medicine, Rutgers, The State University of New Jersey, New Jersey Medical School, Newark, New Jersey.,Division of Rheumatology, Endocrinology and Nephrology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; and
| | - Zolt Arany
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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65
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Agu KC. Diabetes mellitus: A review of some of the prognostic markers of response to treatment and management. JOURNAL OF INSULIN RESISTANCE 2018. [DOI: 10.4102/jir.v3i1.36] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Background: The WHO defined ‘diabetes mellitus’ (DM) as a metabolic disorder characterised by chronic hyperglycaemia with disturbances of carbohydrate, fat and protein metabolism resulting from the defect in insulin secretion, or inaction, or both. When not identified early and controlled, acute and chronic life-threatening consequences may result. Identifying DM early for treatment and management, as well as clinically monitoring recovery and improvement during treatment, involves the assessments of biomarkers. The types, choice, sensitivity and descriptive information trends of these biomarkers are very important. Aim: Some prognostic biomarkers and parameters that this review identified include glycated haemoglobin, white blood cells, mean neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, total leukocytes and neutrophils, plasma low-density lipoprotein, high-density lipoprotein and very low-density lipoprotein, platelet, fibrinogen, D-dimer and C-reactive proteins. Results: These parameters display increases in DM, while red blood cell, haemoglobin concentration, activated partial thromboplastin time, prothrombin time and partial thromboplastin time are decreased. Conclusion: With sound knowledge of the variations of these markers and parameters, observed reversal during treatment and management of DM and its complications can be better monitored, and guided decisions can be made.
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66
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McGarrity S, Anuforo Ó, Halldórsson H, Bergmann A, Halldórsson S, Palsson S, Henriksen HH, Johansson PI, Rolfsson Ó. Metabolic systems analysis of LPS induced endothelial dysfunction applied to sepsis patient stratification. Sci Rep 2018; 8:6811. [PMID: 29717213 PMCID: PMC5931560 DOI: 10.1038/s41598-018-25015-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 04/13/2018] [Indexed: 12/24/2022] Open
Abstract
Endothelial dysfunction contributes to sepsis outcome. Metabolic phenotypes associated with endothelial dysfunction are not well characterised in part due to difficulties in assessing endothelial metabolism in situ. Here, we describe the construction of iEC2812, a genome scale metabolic reconstruction of endothelial cells and its application to describe metabolic changes that occur following endothelial dysfunction. Metabolic gene expression analysis of three endothelial subtypes using iEC2812 suggested their similar metabolism in culture. To mimic endothelial dysfunction, an in vitro sepsis endothelial cell culture model was established and the metabotypes associated with increased endothelial permeability and glycocalyx loss after inflammatory stimuli were quantitatively defined through metabolomics. These data and transcriptomic data were then used to parametrize iEC2812 and investigate the metabotypes of endothelial dysfunction. Glycan production and increased fatty acid metabolism accompany increased glycocalyx shedding and endothelial permeability after inflammatory stimulation. iEC2812 was then used to analyse sepsis patient plasma metabolome profiles and predict changes to endothelial derived biomarkers. These analyses revealed increased changes in glycan metabolism in sepsis non-survivors corresponding to metabolism of endothelial dysfunction in culture. The results show concordance between endothelial health and sepsis survival in particular between endothelial cell metabolism and the plasma metabolome in patients with sepsis.
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Affiliation(s)
- Sarah McGarrity
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavik, Iceland
| | - Ósk Anuforo
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavik, Iceland
| | - Haraldur Halldórsson
- Medical Department, University of Iceland, Sturlugata 8, Reykjavik, Iceland
- Landspitali, Læknagarður, Hringbraut, Reykjavik, Iceland
| | - Andreas Bergmann
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavik, Iceland
| | | | - Sirus Palsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavik, Iceland
| | | | - Pär Ingemar Johansson
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavik, Iceland
- Rigshospitalet, Blegdamsvej 9, 2100, Kobenhavn O, Denmark
| | - Óttar Rolfsson
- Center for Systems Biology, University of Iceland, Sturlugata 8, Reykjavik, Iceland.
- Medical Department, University of Iceland, Sturlugata 8, Reykjavik, Iceland.
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67
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Menini S, Iacobini C, de Latouliere L, Manni I, Ionta V, Blasetti Fantauzzi C, Pesce C, Cappello P, Novelli F, Piaggio G, Pugliese G. The advanced glycation end-product N ϵ -carboxymethyllysine promotes progression of pancreatic cancer: implications for diabetes-associated risk and its prevention. J Pathol 2018. [PMID: 29533466 DOI: 10.1002/path.5072] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Diabetes is an established risk factor for pancreatic cancer (PaC), together with obesity, a Western diet, and tobacco smoking. The common mechanistic link might be the accumulation of advanced glycation end-products (AGEs), which characterizes all of the above disease conditions and unhealthy habits. Surprisingly, however, the role of AGEs in PaC has not been examined yet, despite the evidence of a tumour-promoting role of receptor for advanced glycation end-products (RAGE), the receptor for AGEs. Here, we tested the hypothesis that AGEs promote PaC through RAGE activation. To this end, we investigated the effects of the AGE Nϵ -carboxymethyllysine (CML) in human pancreatic ductal adenocarcinoma (PDA) cell lines and in a mouse model of Kras-driven PaC interbred with a bioluminescent model of proliferation. Tumour growth was monitored in vivo by bioluminescence imaging and confirmed by histology. CML promoted PDA cell growth and RAGE expression, in a concentration-dependent and time-dependent manner, and activated downstream tumourigenic signalling pathways. These effects were counteracted by RAGE antagonist peptide (RAP). Exogenous AGE administration to PaC-prone mice induced RAGE upregulation in pancreatic intraepithelial neoplasias (PanINs) and markedly accelerated progression to invasive PaC. At 11 weeks of age (6 weeks of CML treatment), PaC was observed in eight of 11 (72.7%) CML-treated versus one of 11 (9.1%) vehicle-treated [control (Ctr)] mice. RAP delayed PanIN development in Ctr mice but failed to prevent PaC promotion in CML-treated mice, probably because of competition with soluble RAGE for binding to AGEs and/or compensatory upregulation of the RAGE homologue CD166/ activated leukocyte cell adhesion molecule, which also favoured tumour spread. These findings indicate that AGEs modulate the development and progression of PaC through receptor-mediated mechanisms, and might be responsible for the additional risk conferred by diabetes and other conditions characterized by increased AGE accumulation. Finally, our data suggest that an AGE reduction strategy, instead of RAGE inhibition, might be suitable for the risk management and prevention of PaC. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Stefano Menini
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
| | - Carla Iacobini
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
| | - Luisa de Latouliere
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
| | - Isabella Manni
- Department of Research, Advanced Diagnostics, and Technological Innovation, Regina Elena National Cancer Institute, Rome, Italy
| | - Vittoria Ionta
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
| | | | - Carlo Pesce
- DINOGMI, University of Genoa Medical School, Genoa, Italy
| | - Paola Cappello
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Francesco Novelli
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Giulia Piaggio
- Department of Research, Advanced Diagnostics, and Technological Innovation, Regina Elena National Cancer Institute, Rome, Italy
| | - Giuseppe Pugliese
- Department of Clinical and Molecular Medicine, 'La Sapienza' University, Rome, Italy
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68
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Rohlenova K, Veys K, Miranda-Santos I, De Bock K, Carmeliet P. Endothelial Cell Metabolism in Health and Disease. Trends Cell Biol 2018; 28:224-236. [DOI: 10.1016/j.tcb.2017.10.010] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 10/27/2017] [Accepted: 10/30/2017] [Indexed: 12/22/2022]
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69
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RAGE-dependent potentiation of TRPV1 currents in sensory neurons exposed to high glucose. PLoS One 2018; 13:e0193312. [PMID: 29474476 PMCID: PMC5825096 DOI: 10.1371/journal.pone.0193312] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 02/08/2018] [Indexed: 01/17/2023] Open
Abstract
Diabetes mellitus is associated with sensory abnormalities, including exacerbated responses to painful (hyperalgesia) or non-painful (allodynia) stimuli. These abnormalities are symptoms of diabetic peripheral neuropathy (DPN), which is the most common complication that affects approximately 50% of diabetic patients. Yet, the underlying mechanisms linking hyperglycemia and symptoms of DPN remain poorly understood. The transient receptor potential vanilloid 1 (TRPV1) channel plays a central role in such sensory abnormalities and shows elevated expression levels in animal models of diabetes. Here, we investigated the function of TRPV1 channels in sensory neurons cultured from the dorsal root ganglion (DRG) of neonatal mice, under control (5mM) and high glucose (25mM) conditions. After maintaining DRG neurons in high glucose for 1 week, we observed a significant increase in capsaicin (CAP)-evoked currents and CAP-evoked depolarizations, independent of TRPV1 channel expression. These functional changes were largely dependent on the expression of the receptor for Advanced Glycation End-products (RAGE), calcium influx, cytoplasmic ROS accumulation, PKC, and Src kinase activity. Like cultured neurons from neonates, mature neurons from adult mice also displayed a similar potentiation of CAP-evoked currents in the high glucose condition. Taken together, our data demonstrate that under the diabetic condition, DRG neurons are directly affected by elevated levels of glucose, independent of vascular or glial signals, and dependent on RAGE expression. These early cellular and molecular changes to sensory neurons in vitro are potential mechanisms that might contribute to sensory abnormalities that can occur in the very early stages of diabetes.
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70
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Elrod SM, Greenspan P, Hofmeister EH. High Phenolic Beer Inhibits Protein Glycation in Vitro. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2018. [DOI: 10.1094/asbcj-2017-1323-01] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Susan M. Elrod
- Department of Pharmaceutical Sciences, South University School of Pharmacy, Columbia, SC, U.S.A
| | - Phillip Greenspan
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia College of Pharmacy, Athens, GA, U.S.A
| | - Erik H. Hofmeister
- Department of Small Animal Medicine and Surgery, University of Georgia College of Veterinary Medicine, Athens, GA, U.S.A
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71
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Zacharski LR, Shamayeva G, Chow BK. Iron reduction response and demographic differences between diabetics and non-diabetics with cardiovascular disease entered into a controlled clinical trial. Metallomics 2018; 10:264-277. [DOI: 10.1039/c7mt00282c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Filings of elemental iron separated magnetically from a homogenate of breakfast cereal implicated in the risk of cardiovascular disease and diabetes.
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Affiliation(s)
- Leo R. Zacharski
- Veterans Affairs New England Health Care System
- Research Service (151)
- VA Medical Center
- White River Jct
- USA
| | - Galina Shamayeva
- Veterans Affairs Cooperative Studies Program Coordinating Center
- Veterans Affairs Palo Alto Health Care System
- Palo Alto
- USA
| | - Bruce K. Chow
- Veterans Affairs Cooperative Studies Program Coordinating Center
- Veterans Affairs Palo Alto Health Care System
- Palo Alto
- USA
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72
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Eelen G, de Zeeuw P, Treps L, Harjes U, Wong BW, Carmeliet P. Endothelial Cell Metabolism. Physiol Rev 2018; 98:3-58. [PMID: 29167330 PMCID: PMC5866357 DOI: 10.1152/physrev.00001.2017] [Citation(s) in RCA: 330] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 06/19/2017] [Accepted: 06/22/2017] [Indexed: 02/06/2023] Open
Abstract
Endothelial cells (ECs) are more than inert blood vessel lining material. Instead, they are active players in the formation of new blood vessels (angiogenesis) both in health and (life-threatening) diseases. Recently, a new concept arose by which EC metabolism drives angiogenesis in parallel to well-established angiogenic growth factors (e.g., vascular endothelial growth factor). 6-Phosphofructo-2-kinase/fructose-2,6-bisphosphatase-3-driven glycolysis generates energy to sustain competitive behavior of the ECs at the tip of a growing vessel sprout, whereas carnitine palmitoyltransferase 1a-controlled fatty acid oxidation regulates nucleotide synthesis and proliferation of ECs in the stalk of the sprout. To maintain vascular homeostasis, ECs rely on an intricate metabolic wiring characterized by intracellular compartmentalization, use metabolites for epigenetic regulation of EC subtype differentiation, crosstalk through metabolite release with other cell types, and exhibit EC subtype-specific metabolic traits. Importantly, maladaptation of EC metabolism contributes to vascular disorders, through EC dysfunction or excess angiogenesis, and presents new opportunities for anti-angiogenic strategies. Here we provide a comprehensive overview of established as well as newly uncovered aspects of EC metabolism.
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Affiliation(s)
- Guy Eelen
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Pauline de Zeeuw
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Lucas Treps
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Ulrike Harjes
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Brian W Wong
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium; and Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, VIB, Leuven, Belgium
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73
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Wautier MP, Guillausseau PJ, Wautier JL. Activation of the receptor for advanced glycation end products and consequences on health. Diabetes Metab Syndr 2017; 11:305-309. [PMID: 27612394 DOI: 10.1016/j.dsx.2016.09.009] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 09/03/2016] [Indexed: 12/19/2022]
Abstract
Advanced glycation end products (AGE) resulted from a reaction between free amino group of proteins and carbohydrates. This reaction is followed by oxidation and molecular rearrangement. Alternatively AGEs can be produced by glycolysis and oxidation. AGEs bind to a cellular receptor RAGE. RAGE engagement by ligands AGE, β-amyloid peptide, and S100 calgranulin induces a stimulation of NADPH oxidase, reactive oxygen intermediate formation, NFκB activation and gene transcription. This cascade of reaction leads to an inflammatory reaction responsible for alteration of microvessels in the retina and the kidney. Blockade of RAGE by antibodies anti-RAGE, TTP488 (azeliragon), or rRAGE prevents or limits the deleterious effect of AGEs.
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Affiliation(s)
- Marie-Paule Wautier
- Laboratoire de Biologie Vasculaire et Cellulaire, 6 rue Alexandre Cabanel, 75015 Paris, France
| | - Pierre-Jean Guillausseau
- Université Denis Diderot Paris 7, 10 avenue de Verdun, 75010 Paris, France; APHP, Département de Médecine Interne, Hôpital Lariboisière 2 rue Ambroise Paré, 75010 Paris, France
| | - Jean-Luc Wautier
- Université Denis Diderot Paris 7, 10 avenue de Verdun, 75010 Paris, France; Laboratoire de Biologie Vasculaire et Cellulaire, 6 rue Alexandre Cabanel, 75015 Paris, France.
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74
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Raghav A, Ahmad J, Alam K, Khan AU. New insights into non-enzymatic glycation of human serum albumin biopolymer: A study to unveil its impaired structure and function. Int J Biol Macromol 2017; 101:84-99. [DOI: 10.1016/j.ijbiomac.2017.03.086] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/13/2017] [Accepted: 03/15/2017] [Indexed: 12/31/2022]
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75
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The status of glycation in protein aggregation. Int J Biol Macromol 2017; 100:67-74. [DOI: 10.1016/j.ijbiomac.2015.12.085] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 12/28/2015] [Indexed: 12/15/2022]
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76
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Parasoglou P, Rao S, Slade JM. Declining Skeletal Muscle Function in Diabetic Peripheral Neuropathy. Clin Ther 2017; 39:1085-1103. [PMID: 28571613 PMCID: PMC5503477 DOI: 10.1016/j.clinthera.2017.05.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 04/27/2017] [Accepted: 05/01/2017] [Indexed: 12/25/2022]
Abstract
PURPOSE The present review highlights current concepts regarding the effects of diabetic peripheral neuropathy (DPN) in skeletal muscle. It discusses the lack of effective pharmacologic treatments and the role of physical exercise intervention in limb protection and symptom reversal. It also highlights the importance of magnetic resonance imaging (MRI) techniques in providing a mechanistic understanding of the disease and helping develop targeted treatments. METHODS This review provides a comprehensive reporting on the effects of DPN in the skeletal muscle of patients with diabetes. It also provides an update on the most recent trials of exercise intervention targeting DPN pathology. Lastly, we report on emerging MRI techniques that have shown promise in providing a mechanistic understanding of DPN and can help improve the design and implementation of clinical trials in the future. FINDINGS Impairments in lower limb muscles reduce functional capacity and contribute to altered gait, increased fall risk, and impaired balance in patients with DPN. This finding is an important concern for patients with DPN because their falls are likely to be injurious and lead to bone fractures, poorly healing wounds, and chronic infections that may require amputation. Preliminary studies have shown that moderate-intensity exercise programs are well tolerated by patients with DPN. They can improve their cardiorespiratory function and partially reverse some of the symptoms of DPN. MRI has the potential to bring new mechanistic insights into the effects of DPN as well as to objectively measure small changes in DPN pathology as a result of intervention. IMPLICATIONS Noninvasive exercise intervention is particularly valuable in DPN because of its safety, low cost, and potential to augment pharmacologic interventions. As we gain a better mechanistic understanding of the disease, more targeted and effective interventions can be designed.
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Affiliation(s)
- Prodromos Parasoglou
- Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, New York; Center for Advanced Imaging Innovation and Research (CAI(2)R), Department of Radiology, New York University School of Medicine, New York, New York.
| | - Smita Rao
- Department of Physical Therapy, New York University, New York, New York
| | - Jill M Slade
- Department of Radiology, Michigan State University, East Lansing, Michigan; Biomedical Imaging Research Center, Michigan State University, East Lansing, Michigan
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77
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Insulin signalling and glucose transport in the ovary and ovarian function during the ovarian cycle. Biochem J 2017; 473:1483-501. [PMID: 27234585 PMCID: PMC4888492 DOI: 10.1042/bcj20160124] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 03/03/2016] [Indexed: 12/16/2022]
Abstract
Data derived principally from peripheral tissues (fat, muscle and liver) show that insulin signals via diverse interconnecting intracellular pathways and that some of the major intersecting points (known as critical nodes) are the IRSs (insulin receptor substrates), PI3K (phosphoinositide kinase)/Akt and MAPK (mitogen-activated protein kinase). Most of these insulin pathways are probably also active in the ovary and their ability to interact with each other and also with follicle-stimulating hormone (FSH) and luteinizing hormone (LH) signalling pathways enables insulin to exert direct modulating influences on ovarian function. The present paper reviews the intracellular actions of insulin and the uptake of glucose by ovarian tissues (granulosa, theca and oocyte) during the oestrous/menstrual cycle of some rodent, primate and ruminant species. Insulin signals through diverse pathways and these are discussed with specific reference to follicular cell types (granulosa, theca and oocyte). The signalling pathways for FSH in granulosa cells and LH in granulosa and theca cells are summarized. The roles of glucose and of insulin-mediated uptake of glucose in folliculogenesis are discussed. It is suggested that glucose in addition to its well-established role of providing energy for cellular function may also have insulin-mediated signalling functions in ovarian cells, involving AMPK (AMP-dependent protein kinase) and/or hexosamine. Potential interactions of insulin signalling with FSH or LH signalling at critical nodes are identified and the available evidence for such interactions in ovarian cells is discussed. Finally the action of the insulin-sensitizing drugs metformin and the thiazolidinedione rosiglitazone on follicular cells is reviewed.
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Expression of receptor for advanced glycation end-products (RAGE) in thymus from myasthenia patients. Rev Neurol (Paris) 2017; 173:388-395. [PMID: 28461027 DOI: 10.1016/j.neurol.2017.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 12/30/2016] [Accepted: 03/31/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The receptor for advanced glycation end-products (RAGE) is a membranous immunoglobulin involved in the pathogenesis of numerous autoimmune diseases and tumors. The aim of this study was to investigate the possible involvement of RAGE in the pathogenesis of myasthenia gravis. MATERIAL AND METHODS This prospective study included 41 cases of myasthenia gravis treated at our institution between 2010 and 2015. There were 18 men and 23 women, with an average age of 36.44±14.47 years. The majority of patients (24.4%) were classified as IIb, according to MGFA scoring, and 21 of them required corticosteroid and/or immunosuppressive treatment. Assessment of RAGE in thymus specimens was done by immunohistochemistry using RAGE antibody (C-term). RAGE expression was assessed according to various clinical, paraclinical and pathological parameters. RESULTS Histopathological studies found 18 thymomas, 17 hyperplasias and six other types of pathology. Expression of RAGE was negative/weak in 19 cases and moderate/strong in 22 cases. It was more important in thymoma type B2 (P<0.001) and when the duration of myasthenia was short (P=0.04), and was not significantly related to either myasthenia clinical severity or preoperative treatment. CONCLUSION Our results suggest that the RAGE pathway is involved in myasthenia gravis pathophysiology, especially at disease onset, and in forms with thymomas. Further studies would be indispensable to explore other aspects of this signaling pathway, especially the potential role of different ligands and soluble forms of RAGE.
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79
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Bierhansl L, Conradi LC, Treps L, Dewerchin M, Carmeliet P. Central Role of Metabolism in Endothelial Cell Function and Vascular Disease. Physiology (Bethesda) 2017; 32:126-140. [PMID: 28202623 PMCID: PMC5337830 DOI: 10.1152/physiol.00031.2016] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The importance of endothelial cell (EC) metabolism and its regulatory role in the angiogenic behavior of ECs during vessel formation and in the function of different EC subtypes determined by different vascular beds has been recognized only in the last few years. Even more importantly, apart from a role of nitric oxide and reactive oxygen species in EC dysfunction, deregulations of EC metabolism in disease only recently received increasing attention. Although comprehensive metabolic characterization of ECs still needs further investigation, the concept of targeting EC metabolism to treat vascular disease is emerging. In this overview, we summarize EC-specific metabolic pathways, describe the current knowledge on their deregulation in vascular diseases, and give an outlook on how vascular endothelial metabolism can serve as a target to normalize deregulated endothelium.
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Affiliation(s)
- Laura Bierhansl
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, University of Leuven, Leuven, Belgium; and
- Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, University of Leuven, Leuven, Belgium
| | - Lena-Christin Conradi
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, University of Leuven, Leuven, Belgium; and
- Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, University of Leuven, Leuven, Belgium
| | - Lucas Treps
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, University of Leuven, Leuven, Belgium; and
- Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, University of Leuven, Leuven, Belgium
| | - Mieke Dewerchin
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, University of Leuven, Leuven, Belgium; and
- Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, University of Leuven, Leuven, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, University of Leuven, Leuven, Belgium; and
- Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, University of Leuven, Leuven, Belgium
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Abstract
Angiogenesis has traditionally been viewed from the perspective of how endothelial cells (ECs) coordinate migration and proliferation in response to growth factor activation to form new vessel branches. However, ECs must also coordinate their metabolism and adapt metabolic fluxes to the rising energy and biomass demands of branching vessels. Recent studies have highlighted the importance of such metabolic regulation in the endothelium and uncovered core metabolic pathways and mechanisms of regulation that drive the angiogenic process. In this review, we discuss our current understanding of EC metabolism, how it intersects with angiogenic signal transduction, and how alterations in metabolic pathways affect vessel morphogenesis. Understanding EC metabolism promises to reveal new perspectives on disease mechanisms in the vascular system with therapeutic implications for disorders with aberrant vessel growth and function.
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Affiliation(s)
- Michael Potente
- Angiogenesis and Metabolism Laboratory, Max Planck Institute for Heart and Lung Research, D-61231 Bad Nauheim, Germany; .,International Institute of Molecular and Cell Biology, 02-109 Warsaw, Poland.,German Center for Cardiovascular Research (DZHK), Partner Site Rhein-Main, D-13347 Berlin, Germany
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, Katholieke Universiteit Leuven, 3000 Leuven, Belgium.,Laboratory of Angiogenesis and Vascular Metabolism, Vesalius Research Center, VIB, 3000 Leuven, Belgium
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81
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Furukawa K, Fuse I, Iwakura Y, Sotoyama H, Hanyu O, Nawa H, Sone H, Takei N. Advanced glycation end products induce brain-derived neurotrophic factor release from human platelets through the Src-family kinase activation. Cardiovasc Diabetol 2017; 16:20. [PMID: 28178976 PMCID: PMC5299653 DOI: 10.1186/s12933-017-0505-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 02/03/2017] [Indexed: 12/11/2022] Open
Abstract
Background Brain-derived neurotrophic factor (BDNF) exerts beneficial effects not only on diabetic neuropathies but also on cardiovascular injury. There is argument regarding the levels of serum BDNF in patients with diabetes mellitus (DM). Because BDNF in peripheral blood is rich in platelets, this may represent dysregulation of BDNF release from platelets. Here we focused on advanced glycation end products (AGEs), which are elevated in patients with DM and have adverse effects on cardiovascular functions. The aim of this study is to elucidate the role of AGEs in the regulation of BDNF release from human platelets. Methods Platelets collected from peripheral blood of healthy volunteers were incubated with various concentrations of AGE (glycated-BSA) at 37 °C for 5 min with or without BAPTA-AM, a cell permeable Ca2+ chelator, or PP2, a potent inhibitor of Src family kinases (SFKs). Released and cellular BDNF were measured by ELISA and calculated. Phosphorylation of Src and Syk, a downstream kinase of SFKs, in stimulated platelets was examined by Western blotting and immunoprecipitation. Results AGE induced BDNF release from human platelets in a dose-dependent manner, which was dependent on intracellular Ca2+ and SFKs. We found that AGE induced phosphorylation of Src and Syk. Conclusions AGE induces BDNF release from human platelets through the activation of the Src-Syk-(possibly phospholipase C)-Ca2+ pathway. Considering the toxic action of AGEs and the protective roles of BDNF, it can be hypothesized that AGE-induced BDNF release is a biological defense system in the early phase of diabetes. Chronic elevation of AGEs may induce depletion or downregulation of BDNF in platelets during the progression of DM. Electronic supplementary material The online version of this article (doi:10.1186/s12933-017-0505-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kazuo Furukawa
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Asahimachi, Niigata, 951-8585, Japan.,Department of Hematology, Endocrinology and Metabolism, Niigata University Faculty of Medicine, Niigata, Japan
| | - Ichiro Fuse
- Japanese Red Cross Niigata Blood Center, Niigata, Japan
| | - Yuriko Iwakura
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Asahimachi, Niigata, 951-8585, Japan
| | - Hidekazu Sotoyama
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Asahimachi, Niigata, 951-8585, Japan
| | - Osamu Hanyu
- Department of Hematology, Endocrinology and Metabolism, Niigata University Faculty of Medicine, Niigata, Japan
| | - Hiroyuki Nawa
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Asahimachi, Niigata, 951-8585, Japan
| | - Hirohito Sone
- Department of Hematology, Endocrinology and Metabolism, Niigata University Faculty of Medicine, Niigata, Japan
| | - Nobuyuki Takei
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Asahimachi, Niigata, 951-8585, Japan.
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82
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Ahmed A, Shamsi A, Bano B. Characterizing harmful advanced glycation end-products (AGEs) and ribosylated aggregates of yellow mustard seed phytocystatin: Effects of different monosaccharides. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 171:183-192. [PMID: 27526342 DOI: 10.1016/j.saa.2016.08.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/20/2016] [Accepted: 08/04/2016] [Indexed: 06/06/2023]
Abstract
Advanced glycation end products (AGEs) are at the core of variety of diseases ranging from diabetes to renal failure and hence gaining wide consideration. This study was aimed at characterizing the AGEs of phytocystatin isolated from mustard seeds (YMP) when incubated with different monosaccharides (glucose, ribose and mannose) using fluorescence, ultraviolet, circular dichroism (CD) spectroscopy and microscopy. Ribose was found to be the most potent glycating agent as evident by AGEs specific fluorescence and absorbance. YMP exists as a molten globule like structure on day 24 as depicted by high ANS fluorescence and altered intrinsic fluorescence. Glycated YMP as AGEs and ribose induced aggregates were observed at day 28 and 32 respectively. In our study we have also examined the anti-aggregative potential of polyphenol, resveratrol. Our results suggested the anti-aggregative behavior of resveratrol as it prevented the in vitro aggregation of YMP, although further studies are required to decode the mechanism by which resveratrol prevents the aggregation.
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Affiliation(s)
- Azaj Ahmed
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India
| | - Anas Shamsi
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India
| | - Bilqees Bano
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, India.
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83
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Saito R, Araki S, Yamamoto Y, Kusuhara K. Elevated endogenous secretory receptor for advanced glycation end products (esRAGE) levels are associated with circulating soluble RAGE levels in diabetic children. J Pediatr Endocrinol Metab 2017; 30:63-69. [PMID: 27941172 DOI: 10.1515/jpem-2016-0262] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 11/03/2016] [Indexed: 12/31/2022]
Abstract
BACKGROUND Advanced glycation end products (AGEs) and the receptor for AGE (RAGE) play an important role in the development of diabetic vascular complications. This study aimed at investigating the relationship between the soluble form of RAGE (sRAGE), endogenous secretory RAGE (esRAGE), and pentosidine in childhood diabetes. METHODS The study included 18 children with type 1 diabetes mellitus (T1DM), 10 with type 2 DM (T2DM), and 22 age-matched, non-diabetic children (control). RESULTS Serum sRAGE levels in the T1DM (2557.7 pg/mL) were significantly higher than both T2DM (1956.4 pg/mL) and control (1658.5 pg/mL). The circulating levels of esRAGE in T1DM and T2DM children were similar, but significantly higher than those of control. Serum pentosidine levels in the T1DM group were positively correlated with serum sRAGE and esRAGE levels, but not with anthropometric or biochemical measurements. The duration of diabetes and esRAGE levels were independent predictors of the circulating sRAGE levels. CONCLUSIONS Unlike adults, children with diabetes exhibit high circulating esRAGE levels, and both sRAGE and esRAGE levels are correlated with pentosidine levels. These results suggest that circulating sRAGE and esRAGE in children may be surrogate markers for progressive glucose toxicity in pediatric patients with childhood-onset diabetes.
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85
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Abstract
While the socioeconomic and environmental factors associated with cancer disparity have been well documented, the contribution of biological factors is an emerging field of research. Established disparity factors such as low income, poor diet, drinking alcohol, smoking, and a sedentary lifestyle may have molecular effects on the inherent biological makeup of the tumor itself, possibly altering cell signaling events and gene expression profiles to profoundly alter tumor development and progression. Our understanding of the molecular and biological consequences of poor lifestyle is lacking, but such information may significantly change how we approach goals to reduce cancer incidence and mortality rates within minority populations. In this review, we will summarize the biological, socioeconomic, and environmental associations between a group of reactive metabolites known as advanced glycation end-products (AGEs) and cancer health disparity. Due to their links with lifestyle and the activation of disease-associated pathways, AGEs may represent both a biological consequence and a bio-behavioral indicator of poor lifestyle which may be targeted within specific populations to reduce disparities in cancer incidence and mortality.
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Affiliation(s)
- D P Turner
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, United States.
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86
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Treps L, Conradi LC, Harjes U, Carmeliet P. Manipulating Angiogenesis by Targeting Endothelial Metabolism: Hitting the Engine Rather than the Drivers—A New Perspective? Pharmacol Rev 2016; 68:872-87. [DOI: 10.1124/pr.116.012492] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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87
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Glycation of Liver Cystatin: Implication on its Structure and Function. J Fluoresc 2016; 26:1743-53. [PMID: 27351669 DOI: 10.1007/s10895-016-1866-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 06/14/2016] [Indexed: 10/21/2022]
Abstract
The increased level of reducing sugars and their derivatives in a diabetic condition has been the main cause of protein related complications. The changes in native state of proteins upon glycation induce loss in the function and structure of proteins. This further leads to cell damage and accumulation of immune system inducing AGE formation. Here in the present study cystatin was purified from liver (BLC) through affinity chromatography and was incubated with glucose, fructose and ribose. Changes were observed in the intensity of Trp absorption at 280 nm as well as AGE's specific fluorescence at 435 nm upon excitation at 370 nm to monitor the formation of BLC-sugar adducts. Protein intrinsic fluorescence showed marked conformational changes when BLC was incubated with D-ribose, glucose and fructose. Glycation with D-ribose induces BLC to misfold rapidly into an intermediate state retaining a low percentage of α-helical content compared to fructose and glucose as revealed by far-UV CD data. Furthermore, a caseinolytic assay of papain in presence of glycated liver cystatin showed decreased activity in the protein induced by these reducing sugars. Ribose had more effect on the structure as well as the function of liver cystatin followed by fructose and least for glucose. Absorption spectroscopy shows change in BLC and formation of AGE's. These results shows that liver cystatin-cathepsin imbalance is compromised in diabetic state which may lead to improper balance of proteinases leading to cirrhosis or liver damage.
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88
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McGarrity S, Halldórsson H, Palsson S, Johansson PI, Rolfsson Ó. Understanding the Causes and Implications of Endothelial Metabolic Variation in Cardiovascular Disease through Genome-Scale Metabolic Modeling. Front Cardiovasc Med 2016; 3:10. [PMID: 27148541 PMCID: PMC4834436 DOI: 10.3389/fcvm.2016.00010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 04/03/2016] [Indexed: 01/04/2023] Open
Abstract
High-throughput biochemical profiling has led to a requirement for advanced data interpretation techniques capable of integrating the analysis of gene, protein, and metabolic profiles to shed light on genotype-phenotype relationships. Herein, we consider the current state of knowledge of endothelial cell (EC) metabolism and its connections to cardiovascular disease (CVD) and explore the use of genome-scale metabolic models (GEMs) for integrating metabolic and genomic data. GEMs combine gene expression and metabolic data acting as frameworks for their analysis and, ultimately, afford mechanistic understanding of how genetic variation impacts metabolism. We demonstrate how GEMs can be used to investigate CVD-related genetic variation, drug resistance mechanisms, and novel metabolic pathways in ECs. The application of GEMs in personalized medicine is also highlighted. Particularly, we focus on the potential of GEMs to identify metabolic biomarkers of endothelial dysfunction and to discover methods of stratifying treatments for CVDs based on individual genetic markers. Recent advances in systems biology methodology, and how these methodologies can be applied to understand EC metabolism in both health and disease, are thus highlighted.
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Affiliation(s)
- Sarah McGarrity
- Center for Systems Biology, University of Iceland , Reykjavik , Iceland
| | - Haraldur Halldórsson
- Department of Pharmacology and Toxicology, School of Health Sciences, University of Iceland , Reykjavik , Iceland
| | - Sirus Palsson
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland; Sinopia Biosciences Inc., San Diego, CA, USA
| | - Pär I Johansson
- Section for Transfusion Medicine, Capital Region Blood Bank, Rigshospitalet, University of Copenhagen , Copenhagen , Denmark
| | - Óttar Rolfsson
- Center for Systems Biology, University of Iceland, Reykjavik, Iceland; Department of Biochemistry and Molecular Biology, School of Health Sciences, University of Iceland, Reykjavik, Iceland
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89
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Abstract
We are currently in the midst of an epidemic of metabolic disorders, which may, in part, be explained by excess fructose intake. This theory is supported by epidemiological observations as well as experimental studies in animals and humans. Rising consumption of fructose has been matched with growing rates of hypertension, leading to concern from public health experts. At this stage, the mechanisms underlying fructose-induced hypertension have not been fully characterized and the bulk of our knowledge is derived from animal models. Animal studies have shown that high-fructose diets up-regulate sodium and chloride transporters, resulting in a state of salt overload that increases blood pressure. Excess fructose has also been found to activate vasoconstrictors, inactivate vasodilators, and over-stimulate the sympathetic nervous system. Further work is required to determine the relevance of these findings to humans and to establish the level at which dietary fructose increases the risk of developing hypertension
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90
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Koning NJ, de Lange F, Vonk ABA, Ahmed Y, van den Brom CE, Bogaards S, van Meurs M, Jongman RM, Schalkwijk CG, Begieneman MPV, Niessen HW, Baufreton C, Boer C. Impaired microcirculatory perfusion in a rat model of cardiopulmonary bypass: the role of hemodilution. Am J Physiol Heart Circ Physiol 2016; 310:H550-8. [DOI: 10.1152/ajpheart.00913.2015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 01/06/2016] [Indexed: 01/04/2023]
Abstract
Although hemodilution is attributed as the main cause of microcirculatory impairment during cardiopulmonary bypass (CPB), this relationship has never been investigated. We investigated the distinct effects of hemodilution with or without CPB on microvascular perfusion and subsequent renal tissue injury in a rat model. Male Wistar rats (375–425 g) were anesthetized, prepared for cremaster muscle intravital microscopy, and subjected to CPB ( n = 9), hemodilution alone ( n = 9), or a sham procedure ( n = 6). Microcirculatory recordings were performed at multiple time points and analyzed for perfusion characteristics. Kidney and lung tissue were investigated for mRNA expression for genes regulating inflammation and endothelial adhesion molecule expression. Renal injury was assessed with immunohistochemistry. Hematocrit levels dropped to 0.24 ± 0.03 l/l and 0.22 ± 0.02 l/l after onset of hemodilution with or without CPB. Microcirculatory perfusion remained unaltered in sham rats. Hemodilution alone induced a 13% decrease in perfused capillaries, after which recovery was observed. Onset of CPB reduced the perfused capillaries by 40% (9.2 ± 0.9 to 5.5 ± 1.5 perfused capillaries per microscope field; P < 0.001), and this reduction persisted throughout the experiment. Endothelial and inflammatory activation and renal histological injury were increased after CPB compared with hemodilution or sham procedure. Hemodilution leads to minor and transient disturbances in microcirculatory perfusion, which cannot fully explain impaired microcirculation following cardiopulmonary bypass. CPB led to increased renal injury and endothelial adhesion molecule expression in the kidney and lung compared with hemodilution. Our findings suggest that microcirculatory impairment during CPB may play a role in the development of kidney injury.
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Affiliation(s)
- Nick J. Koning
- Department of Anesthesiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
- Department of Integrated Neurovascular Biology, INSERM U1083, CNRS UMR 6214, LUNAM University, Université d'Angers, Angers, France
| | - Fellery de Lange
- Department of Cardiothoracic Anesthesiology, Medical Center Leeuwarden, Leeuwarden, The Netherlands
- Department of Intensive Care Medicine, Medical Center Leeuwarden, Leeuwarden, The Netherlands
| | - Alexander B. A. Vonk
- Department of Cardiothoracic Surgery, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Yunus Ahmed
- Department of Anesthesiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
- Department of Cardiothoracic Surgery, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Charissa E. van den Brom
- Department of Anesthesiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Sylvia Bogaards
- Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Matijs van Meurs
- Department of Critical Care, Pathology, and Medical Biology, University Medical Center Groningen, Groningen, The Netherlands
| | - Rianne M. Jongman
- Department of Anesthesiology, University Medical Center Groningen, Groningen, The Netherlands
- Department of Critical Care, Pathology, and Medical Biology, University Medical Center Groningen, Groningen, The Netherlands
| | - Casper G. Schalkwijk
- Department of Internal Medicine, Laboratory for Metabolism and Vascular Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Mark P. V. Begieneman
- Department of Pathology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Hans W. Niessen
- Department of Cardiothoracic Surgery, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
- Department of Pathology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Christophe Baufreton
- Department of Cardiovascular Surgery, INSERM U1083, CNRS UMR 6214, LUNAM University, Université d'Angers, Angers, France; and
| | - Christa Boer
- Department of Anesthesiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands
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Goel R, Bhat SA, Hanif K, Nath C, Shukla R. Perindopril Attenuates Lipopolysaccharide-Induced Amyloidogenesis and Memory Impairment by Suppression of Oxidative Stress and RAGE Activation. ACS Chem Neurosci 2016; 7:206-17. [PMID: 26689453 DOI: 10.1021/acschemneuro.5b00274] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Clinical and preclinical studies account hypertension as a risk factor for dementia. We reported earlier that angiotensin-converting enzyme (ACE) inhibition attenuated the increased vulnerability to neurodegeneration in hypertension and prevented lipopolysaccharide (LPS)-induced memory impairment in normotensive wistar rats (NWRs) and spontaneously hypertensive rats (SHRs). Recently, a receptor for advanced glycation end products (RAGE) has been reported to induce amyloid beta (Aβ1-42) deposition and memory impairment in hypertensive animals. However, the involvement of ACE in RAGE activation and amyloidogenesis in the hypertensive state is still unexplored. Therefore, in this study, we investigated the role of ACE on RAGE activation and amyloidogenesis in memory-impaired NWRs and SHRs. Memory impairment was induced by repeated (on days 1, 4, 7, and 10) intracerebroventricular (ICV) injections of LPS in SHRs (25 μg) and NWRs (50 μg). Our data showed that SHRs exhibited increased oxidative stress (increased gp91-phox/NOX-2 expression and ROS generation), RAGE, and β-secretase (BACE) expression without Aβ1-42 deposition. LPS (25 μg, ICV) further amplified oxidative stress, RAGE, and BACE activation, culminating in Aβ1-42 deposition and memory impairment in SHRs. Similar changes were observed at the higher dose of LPS (50 μg, ICV) in NWRs. Further, LPS-induced oxidative stress was associated with endothelial dysfunction and reduction in cerebral blood flow (CBF), more prominently in SHRs than in NWRs. Finally, we showed that perindopril (0.1 mg/kg, 15 days) prevented memory impairment by reducing oxidative stress, RAGE activation, amyloidogenesis, and improved CBF in both SHRs and NWRs. These findings suggest that perindopril might be used as a therapeutic strategy for the early stage of dementia.
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Affiliation(s)
- Ruby Goel
- Division of Pharmacology and ‡Division of Toxicology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Shahnawaz Ali Bhat
- Division of Pharmacology and ‡Division of Toxicology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Kashif Hanif
- Division of Pharmacology and ‡Division of Toxicology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Chandishwar Nath
- Division of Pharmacology and ‡Division of Toxicology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Rakesh Shukla
- Division of Pharmacology and ‡Division of Toxicology, CSIR-Central Drug Research Institute, Lucknow 226031, India
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92
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Raghu G, Jakhotia S, Yadagiri Reddy P, Anil Kumar P, Bhanuprakash Reddy G. Ellagic acid inhibits non-enzymatic glycation and prevents proteinuria in diabetic rats. Food Funct 2016; 7:1574-83. [DOI: 10.1039/c5fo01372k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of advanced glycation end products (AGEs) is a characteristic feature of diabetic tissues and accumulation of AGEs been implicated in the pathogenesis of diabetic nephropathy (DN). Ellagic acid prevented the accumulation of AGEs and in turn ameliorated proteinurea in diabetic rats.
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Affiliation(s)
- G. Raghu
- National Institute of Nutrition
- Hyderabad
- India
| | | | | | - P. Anil Kumar
- Department of Biochemistry
- University of Hyderabad
- Hyderabad
- India
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93
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Dhananjayan R, Koundinya KSS, Malati T, Kutala VK. Endothelial Dysfunction in Type 2 Diabetes Mellitus. Indian J Clin Biochem 2015; 31:372-9. [PMID: 27605734 DOI: 10.1007/s12291-015-0516-y] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 07/29/2015] [Indexed: 12/13/2022]
Abstract
Endothelial dysfunction is an imbalance in the production of vasodilator factors and when this balance is disrupted, it predisposes the vasculature towards pro-thrombotic and pro-atherogenic effects. This results in vasoconstriction, leukocyte adherence, platelet activation, mitogenesis, pro-oxidation, impaired coagulation and nitric oxide production, vascular inflammation, atherosclerosis and thrombosis. Endothelial dysfunction is focussed as it is a potential contributor to the pathogenesis of vascular disease in diabetes mellitus. Under physiological conditions, there is a balanced release of endothelial-derived relaxing and contracting factors, but this delicate balance is altered in diabetes mellitus and atherosclerosis, thereby contributing to further progression of vascular and end-organ damage. This review focuses on endothelial dysfunction in atherosclerosis, insulin resistance, metabolic syndrome, oxidative stress associated with diabetes mellitus, markers and genetics that are implicated in endothelial dysfunction.
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Affiliation(s)
- R Dhananjayan
- Department of Biochemistry, ACS Medical College & Hospital, Velappanchavadi, Chennai, Tamil Nadu India
| | | | - T Malati
- Department of Biochemistry, Nizam's Institute of Medical Sciences, Hyderabad, Telangana India
| | - Vijay Kumar Kutala
- Department of Clinical Pharmacology and Therapeutics (Biochemistry), Nizam's Institute of Medical Sciences, Hyderabad, Telangana India
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94
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Simic Z, Weiwad M, Schierhorn A, Steegborn C, Schutkowski M. The ɛ-Amino Group of Protein Lysine Residues Is Highly Susceptible to Nonenzymatic Acylation by Several Physiological Acyl-CoA Thioesters. Chembiochem 2015; 16:2337-47. [PMID: 26382620 DOI: 10.1002/cbic.201500364] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Indexed: 01/04/2023]
Abstract
Mitochondrial enzymes implicated in the pathophysiology of diabetes, cancer, and metabolic syndrome are highly regulated by acetylation. However, mitochondrial acetyltransferases have not been identified. Here, we show that acetylation and also other acylations are spontaneous processes that depend on pH value, acyl-CoA concentration and the chemical nature of the acyl residue. In the case of a peptide derived from carbamoyl phosphate synthetase 1, the rates of succinylation and glutarylation were up to 150 times than for acetylation. These results were confirmed by using the protein substrate cyclophilin A (CypA). Deacylation experiments revealed that SIRT3 exhibits deacetylase activity but is not able to remove any of the succinyl groups from CypA, whereas SIRT5 is an effective protein desuccinylase. Thus, the acylation landscape on lysine residues might largely depend on the enzymatic activity of specific sirtuins, and the availability and reactivity of acyl-CoA compounds.
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Affiliation(s)
- Zeljko Simic
- Department of Enzymology, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Strasse 3, 06120, Halle, Germany
| | - Matthias Weiwad
- Department of Enzymology, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Strasse 3, 06120, Halle, Germany
| | - Angelika Schierhorn
- Department of Enzymology, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Strasse 3, 06120, Halle, Germany
| | - Clemens Steegborn
- Department of Biochemistry, University of Bayreuth, Universitätsstraße 30, 95440, Bayreuth, Germany
| | - Mike Schutkowski
- Department of Enzymology, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Strasse 3, 06120, Halle, Germany.
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95
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Erbas O, Pala HG, Pala EE, Oltulu F, Aktug H, Yavasoglu A, Taskiran D. Ovarian failure in diabetic rat model: nuclear factor-kappaB, oxidative stress, and pentraxin-3. Taiwan J Obstet Gynecol 2015; 53:498-503. [PMID: 25510691 DOI: 10.1016/j.tjog.2013.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2013] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE The aim of the present study was to investigate the effects of diabetes mellitus (DM) on ovarian reserve and injury by considering laboratory and histopathological parameters in rat models. MATERIALS AND METHODS An experimental DM model was created in 16 rats. Eight rats with normal blood glucose levels were included in the control group. Diabetic rats were divided randomly into two groups: nontreated and resveratrol-treated groups. Histopathological examination and nuclear factor (NF)-κB immunoexpression level determination were performed. Plasma malondialdehyde, glutathione, pentraxin-3, and anti-Müllerian hormone levels were measured. Relations between the variables were compared by Student t test, analysis of variance, and Mann-Whitney U and χ(2) tests. RESULTS We found statistically significantly lower glutathione and anti-Müllerian hormone levels, and higher malondialdehyde and pentraxin-3 levels in nontreated diabetic group when compared with the control and resveratrol-treated diabetic groups. Stromal degeneration, follicle degeneration, stromal fibrosis scores, and NF-κB immunoexpression levels were significantly higher in nontreated diabetic rats. Primordial and primary follicle counts were significantly lower in the nontreated diabetic group when compared with the control and resveratrol-treated groups. There was no statistically significant difference in secondary and tertiary follicles between these groups. CONCLUSION These findings provide strong evidence that the ovarian follicle pool in nontreated diabetic rats is affected in the early stages of the follicle development process. We precluded negative effects of DM on ovaries by inhibiting the NF-κB pathway with resveratrol. We thought that the NF-κB pathway plays a role in the pathophysiology of ovarian failure in diabetic rats. Further studies should evaluate this precise mechanism that leads to a decline in the anti-Müllerian hormone levels. In addition, the relationship between this abnormality and reproductive function in diabetic patients should be analyzed further.
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Affiliation(s)
- Oytun Erbas
- Physiology Department, School of Medicine, Gaziosmanpasa University, Tokat, Turkey
| | - Halil Gursoy Pala
- Obstetrics and Gynecology-Perinatology Department, Celal Bayar University, Manisa, Turkey.
| | - Emel Ebru Pala
- Pathology Department, Izmir Tepecik Training and Research Hospital, Izmir, Turkey
| | - Fatih Oltulu
- Histology and Embryology Department, School of Medicine, Ege University, Izmir, Turkey
| | - Huseyin Aktug
- Histology and Embryology Department, School of Medicine, Ege University, Izmir, Turkey
| | - Altug Yavasoglu
- Histology and Embryology Department, School of Medicine, Ege University, Izmir, Turkey
| | - Dilek Taskiran
- Physiology Department, School of Medicine, Ege University, Izmir, Turkey
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96
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Portela JMD, Tavares RS, Mota PC, Ramalho-Santos J, Amaral S. High glucose concentrations per se do not adversely affect human sperm function in vitro. Reproduction 2015; 150:77-84. [DOI: 10.1530/rep-15-0100] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 04/29/2015] [Indexed: 11/08/2022]
Abstract
Diabetes mellitus (DM) represents one of the greatest concerns to global health and it is associated with diverse clinical complications, including reproductive dysfunction. Given the multifactorial nature of DM, the mechanisms that underlie reproductive dysfunction remain unclear. Considering that hyperglycemia has been described as a major effector of the disease pathophysiology, we used anin vitroapproach to address the isolated effect of high glucose conditions on human sperm function, thus avoiding otherin vivoconfounding players. We performed a complete and integrated analysis by measuring a variety of important indicators of spermatozoa functionality (such as motility, viability, capacitation status, acrosomal integrity, mitochondrial superoxide production and membrane potential) in human sperm samples after incubation withd- andl-glucose (5, 25, or 50 mM) for 24 and 48 h. No direct effects promoted by 25 or 50 mMd-glucose were found for any of the parameters assessed (P>0.05), except for the acrosome reaction, which was potentiated after 48 h of exposure to 50 mMd-glucose (P<0.05). Interestingly, non-metabolizablel-glucose drastically increased superoxide production (P<0.05) and suppressed sperm motility (P<0.05) and capacitation (P<0.05) after 24 h of treatment, whereas mitochondrial membrane potential (P<0.05), acrosomal integrity (P<0.01) and viability (P<0.05) were later decreased. The overall results suggest that high glucose levelsper sedo not influence human sperm functionin vitro, which stresses the importance of other factors involved in DM pathology. Nevertheless, the absence of metabolizable glucose contributes to a severe impairment of sperm function and thus compromises male fertility.Free Portuguese abstract: A Portuguese translation of this abstract is freely available athttp://www.reproduction-online.org/content/150/1/77/suppl/DC1.
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97
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Stowell SR, Ju T, Cummings RD. Protein glycosylation in cancer. ANNUAL REVIEW OF PATHOLOGY-MECHANISMS OF DISEASE 2015; 10:473-510. [PMID: 25621663 DOI: 10.1146/annurev-pathol-012414-040438] [Citation(s) in RCA: 574] [Impact Index Per Article: 63.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Neoplastic transformation results in a wide variety of cellular alterations that impact the growth, survival, and general behavior of affected tissue. Although genetic alterations underpin the development of neoplastic disease, epigenetic changes can exert an equally significant effect on neoplastic transformation. Among neoplasia-associated epigenetic alterations, changes in cellular glycosylation have recently received attention as a key component of neoplastic progression. Alterations in glycosylation appear to not only directly impact cell growth and survival but also facilitate tumor-induced immunomodulation and eventual metastasis. Many of these changes may support neoplastic progression, and unique alterations in tumor-associated glycosylation may also serve as a distinct feature of cancer cells and therefore provide novel diagnostic and even therapeutic targets.
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98
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Goveia J, Stapor P, Carmeliet P. Principles of targeting endothelial cell metabolism to treat angiogenesis and endothelial cell dysfunction in disease. EMBO Mol Med 2015; 6:1105-20. [PMID: 25063693 PMCID: PMC4197858 DOI: 10.15252/emmm.201404156] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The endothelium is the orchestral conductor of blood vessel function. Pathological blood vessel formation (a process termed pathological angiogenesis) or the inability of endothelial cells (ECs) to perform their physiological function (a condition known as EC dysfunction) are defining features of various diseases. Therapeutic intervention to inhibit aberrant angiogenesis or ameliorate EC dysfunction could be beneficial in diseases such as cancer and cardiovascular disease, respectively, but current strategies have limited efficacy. Based on recent findings that pathological angiogenesis and EC dysfunction are accompanied by EC-specific metabolic alterations, targeting EC metabolism is emerging as a novel therapeutic strategy. Here, we review recent progress in our understanding of how EC metabolism is altered in disease and discuss potential metabolic targets and strategies to reverse EC dysfunction and inhibit pathological angiogenesis.
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Affiliation(s)
- Jermaine Goveia
- Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, Department of Oncology, University of Leuven, Leuven, Belgium Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center VIB, Leuven, Belgium
| | - Peter Stapor
- Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, Department of Oncology, University of Leuven, Leuven, Belgium Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center VIB, Leuven, Belgium
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, Department of Oncology, University of Leuven, Leuven, Belgium Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center VIB, Leuven, Belgium
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99
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Erbas O, Pala HG, Pala EE, Artunc Ulkumen B, Akman L, Akman T, Oltulu F, Aktug H, Yavasoglu A. Therapeutic effect of sunitinib on diabetes mellitus related ovarian injury: an experimental rat model study. Gynecol Endocrinol 2015; 31:388-91. [PMID: 25703256 DOI: 10.3109/09513590.2015.1005593] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of our study is to investigate the effect of sunitinib on diabetes mellitus related-ovarian injury and fibrosis in rat models. An experimental diabetes mellitus model was created in 16 rats, and eight rats with normal blood glucose levels were included in control group (Group-1). The diabetic rats were divided into two groups:diabetic control group (water given) - Group-2 and sunitinib treatment group - Group-3. After four weeks, bilateral oophorectomy was performed and ovaries were examined histologically. The groups were compared by Student's t-test, analysis of variance (ANOVA) and Mann-Whitney's U-test. There was a significant increase in no-medication (water given) diabetic rat's ovary (Group-2) in terms of follicular degeneration, stromal degeneration, stromal fibrosis and NF-kappaB immune-expression compared with control group normal rats' ovary (Group-1) (p < 0.0001). Stromal degeneration (p = 0.04), stromal fibrosis (p = 0.01), follicular degeneration (p = 0.02), NF-kappaB immune-expression (p = 0.001) significantly decreased in sunitinib-treated diabetic rat's ovary (Group-3) when compared with no-medication (water given) diabetic rat's ovary (Group-2) (p < 0.05). When we used sunitinib in the treatment of diabetic rats, ovarian injury, fibrosis and NF-kappaB immunoexpression decreased significantly. The effects of sunitinib in rat models give hope to the improved treatment of premature ovarian failure due to diabetes mellitus in humans.
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Affiliation(s)
- Oytun Erbas
- Physiology Department, Istanbul Bilim University School of Medicine , Istanbul , Turkey
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100
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Abstract
Higher organisms rely on a closed cardiovascular circulatory system with blood vessels supplying vital nutrients and oxygen to distant tissues. Not surprisingly, vascular pathologies rank among the most life-threatening diseases. At the crux of most of these vascular pathologies are (dysfunctional) endothelial cells (ECs), the cells lining the blood vessel lumen. ECs display the remarkable capability to switch rapidly from a quiescent state to a highly migratory and proliferative state during vessel sprouting. This angiogenic switch has long been considered to be dictated by angiogenic growth factors (eg, vascular endothelial growth factor) and other signals (eg, Notch) alone, but recent findings show that it is also driven by a metabolic switch in ECs. Furthermore, these changes in metabolism may even override signals inducing vessel sprouting. Here, we review how EC metabolism differs between the normal and dysfunctional/diseased vasculature and how it relates to or affects the metabolism of other cell types contributing to the pathology. We focus on the biology of ECs in tumor blood vessel and diabetic ECs in atherosclerosis as examples of the role of endothelial metabolism in key pathological processes. Finally, current as well as unexplored EC metabolism-centric therapeutic avenues are discussed.
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Affiliation(s)
- Guy Eelen
- From the Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, Department of Oncology, KU Leuven, Leuven, Belgium (G.E., P.d.Z., P.C.); Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, VIB, Leuven, Belgium (G.E., P.d.Z., P.C.); Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, New Haven, CT (M.S.); and Department of Cell Biology, Yale University School of Medicine, New Haven, CT (M.S.)
| | - Pauline de Zeeuw
- From the Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, Department of Oncology, KU Leuven, Leuven, Belgium (G.E., P.d.Z., P.C.); Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, VIB, Leuven, Belgium (G.E., P.d.Z., P.C.); Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, New Haven, CT (M.S.); and Department of Cell Biology, Yale University School of Medicine, New Haven, CT (M.S.)
| | - Michael Simons
- From the Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, Department of Oncology, KU Leuven, Leuven, Belgium (G.E., P.d.Z., P.C.); Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, VIB, Leuven, Belgium (G.E., P.d.Z., P.C.); Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, New Haven, CT (M.S.); and Department of Cell Biology, Yale University School of Medicine, New Haven, CT (M.S.)
| | - Peter Carmeliet
- From the Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, Department of Oncology, KU Leuven, Leuven, Belgium (G.E., P.d.Z., P.C.); Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, VIB, Leuven, Belgium (G.E., P.d.Z., P.C.); Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, New Haven, CT (M.S.); and Department of Cell Biology, Yale University School of Medicine, New Haven, CT (M.S.).
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