1
|
Roth L, Dogan S, Tuna BG, Aranyi T, Benitez S, Borrell-Pages M, Bozaykut P, De Meyer GRY, Duca L, Durmus N, Fonseca D, Fraenkel E, Gillery P, Giudici A, Jaisson S, Johansson M, Julve J, Lucas-Herald AK, Martinet W, Maurice P, McDonnell BJ, Ozbek EN, Pucci G, Pugh CJA, Rochfort KD, Roks AJM, Rotllan N, Shadiow J, Sohrabi Y, Spronck B, Szeri F, Terentes-Printzios D, Tunc Aydin E, Tura-Ceide O, Ucar E, Yetik-Anacak G. Pharmacological modulation of vascular ageing: A review from VascAgeNet. Ageing Res Rev 2023; 92:102122. [PMID: 37956927 DOI: 10.1016/j.arr.2023.102122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/27/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023]
Abstract
Vascular ageing, characterized by structural and functional changes in blood vessels of which arterial stiffness and endothelial dysfunction are key components, is associated with increased risk of cardiovascular and other age-related diseases. As the global population continues to age, understanding the underlying mechanisms and developing effective therapeutic interventions to mitigate vascular ageing becomes crucial for improving cardiovascular health outcomes. Therefore, this review provides an overview of the current knowledge on pharmacological modulation of vascular ageing, highlighting key strategies and promising therapeutic targets. Several molecular pathways have been identified as central players in vascular ageing, including oxidative stress and inflammation, the renin-angiotensin-aldosterone system, cellular senescence, macroautophagy, extracellular matrix remodelling, calcification, and gasotransmitter-related signalling. Pharmacological and dietary interventions targeting these pathways have shown potential in ameliorating age-related vascular changes. Nevertheless, the development and application of drugs targeting vascular ageing is complicated by various inherent challenges and limitations, such as certain preclinical methodological considerations, interactions with exercise training and sex/gender-related differences, which should be taken into account. Overall, pharmacological modulation of endothelial dysfunction and arterial stiffness as hallmarks of vascular ageing, holds great promise for improving cardiovascular health in the ageing population. Nonetheless, further research is needed to fully elucidate the underlying mechanisms and optimize the efficacy and safety of these interventions for clinical translation.
Collapse
Affiliation(s)
- Lynn Roth
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium.
| | - Soner Dogan
- Department of Medical Biology, School of Medicine, Yeditepe University, Istanbul, Turkiye
| | - Bilge Guvenc Tuna
- Department of Biophysics, School of Medicine, Yeditepe University, Istanbul, Turkiye
| | - Tamas Aranyi
- Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary; Department of Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Sonia Benitez
- CIBER de Diabetes y enfermedades Metabólicas asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain; Cardiovascular Biochemistry, Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
| | - Maria Borrell-Pages
- Cardiovascular Program ICCC, Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain; Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares (CIBER-CV), Instituto de Salud Carlos III, Madrid, Spain
| | - Perinur Bozaykut
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkiye
| | - Guido R Y De Meyer
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - Laurent Duca
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France
| | - Nergiz Durmus
- Department of Pharmacology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkiye
| | - Diogo Fonseca
- Laboratory of Pharmacology and Pharmaceutical Care, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Emil Fraenkel
- 1st Department of Internal Medicine, University Hospital, Pavol Jozef Šafárik University of Košice, Košice, Slovakia
| | - Philippe Gillery
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France; Laboratoire de Biochimie-Pharmacologie-Toxicologie, Centre Hospitalier et Universitaire de Reims, Reims, France
| | - Alessandro Giudici
- Department of Biomedical Engineering, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands; GROW School for Oncology and Reproduction, Maastricht University, the Netherlands
| | - Stéphane Jaisson
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France; Laboratoire de Biochimie-Pharmacologie-Toxicologie, Centre Hospitalier et Universitaire de Reims, Reims, France
| | | | - Josep Julve
- CIBER de Diabetes y enfermedades Metabólicas asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain; Endocrinology, Diabetes and Nutrition group, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
| | | | - Wim Martinet
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - Pascal Maurice
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France
| | - Barry J McDonnell
- Centre for Cardiovascular Health and Ageing, Cardiff Metropolitan University, Cardiff, UK
| | - Emine Nur Ozbek
- Department of Pharmacology, Faculty of Pharmacy, Ege University, Izmir, Turkiye
| | - Giacomo Pucci
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Christopher J A Pugh
- Centre for Cardiovascular Health and Ageing, Cardiff Metropolitan University, Cardiff, UK
| | - Keith D Rochfort
- School of Nursing, Psychotherapy, and Community Health, Dublin City University, Dublin, Ireland
| | - Anton J M Roks
- Department of Internal Medicine, Division of Vascular Disease and Pharmacology, Erasmus Medical Center, Erasmus University, Rotterdam, the Netherlands
| | - Noemi Rotllan
- CIBER de Diabetes y enfermedades Metabólicas asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain; Pathophysiology of lipid-related diseases, Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
| | - James Shadiow
- School of Kinesiology, University of Michigan, Ann Arbor, MI, USA
| | - Yahya Sohrabi
- Molecular Cardiology, Dept. of Cardiology I - Coronary and Peripheral Vascular Disease, University Hospital Münster, Westfälische Wilhelms-Universität, 48149 Münster, Germany; Department of Medical Genetics, Third Faculty of Medicine, Charles University, 100 00 Prague, Czechia
| | - Bart Spronck
- Department of Biomedical Engineering, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands; Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Australia
| | - Flora Szeri
- Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary
| | - Dimitrios Terentes-Printzios
- First Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Elif Tunc Aydin
- Department of Cardiology, Hospital of Ataturk Training and Research Hospital, Katip Celebi University, Izmir, Turkiye
| | - Olga Tura-Ceide
- Biomedical Research Institute-IDIBGI, Girona, Spain; Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Respiratorias, Madrid, Spain
| | - Eda Ucar
- Department of Biophysics, School of Medicine, Yeditepe University, Istanbul, Turkiye
| | - Gunay Yetik-Anacak
- Department of Pharmacology, Faculty of Pharmacy, Ege University, Izmir, Turkiye; Department of Pharmacology, Faculty of Pharmacy, Acıbadem Mehmet Aydinlar University, Istanbul, Turkiye.
| |
Collapse
|
2
|
Cauble MA, Mancini NS, Kalinowski J, Lykotrafitis G, Moss IL. Atomic force microscopy imaging for nanoscale and microscale assessments of extracellular matrix in intervertebral disc and degeneration. JOR Spine 2020; 3:e1125. [PMID: 33015582 PMCID: PMC7524250 DOI: 10.1002/jsp2.1125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 07/07/2020] [Accepted: 08/30/2020] [Indexed: 01/07/2023] Open
Abstract
Degeneration of the intervertebral disc (IVD) is a condition that is often associated with debilitating back pain. There are no disease-modifying treatments available to halt the progression of this ubiquitous disorder. This is partly due to a lack of understanding of extracellular matrix (ECM) changes that occur at the micro- and nanometer size scales as the disease progresses. Over the past decade, atomic force microscopy (AFM) has been utilized as a tool to investigate the impact of disease on nanoscale structure of ECM in bone, skin, tendon, and dentin. We have expanded this methodology to include the IVD and report the first quantitative analysis of ECM structure at submicron size scales in a murine model for progressive IVD degeneration. Collagen D-spacing, a metric of nanoscale structure at the fibril level, was observed as a distribution of values with an overall average value of 62.5 ± 2.5 nm. In degenerative discs, the fibril D-spacing distribution shifted towards higher values in both the annulus fibrosus and nucleus pulposus (NP) (P < .05). A novel microstructural feature, collagen toroids, defined by a topographical pit enclosed by fibril-forming matrix was observed in the NP. With degeneration, these microstructures became more numerous and the morphology was altered from circular (aspect ratio 1.0 ± 0.1) to oval (aspect ratio 1.5 ± 0.4), P < .005. These analyses provide ECM structural details of the IVD at size scales that have historically been missing in studies of disc degeneration. Knowledge gained from these insights may aid the development of novel disease-modifying therapeutics.
Collapse
Affiliation(s)
- Meagan A Cauble
- UConn Health Department of Orthopaedic Surgery Musculoskeletal Institute Farmington Connecticut USA
| | - Nickolas S Mancini
- UConn Health Department of Orthopaedic Surgery Musculoskeletal Institute Farmington Connecticut USA
| | - Judith Kalinowski
- UConn Health Department of Orthopaedic Surgery Musculoskeletal Institute Farmington Connecticut USA
| | - George Lykotrafitis
- Department of Mechanical Engineering University of Connecticut Storrs Connecticut USA
| | - Isaac L Moss
- UConn Health Department of Orthopaedic Surgery Musculoskeletal Institute Farmington Connecticut USA
| |
Collapse
|
3
|
Rojas A, Añazco C, González I, Araya P. Extracellular matrix glycation and receptor for advanced glycation end-products activation: a missing piece in the puzzle of the association between diabetes and cancer. Carcinogenesis 2018; 39:515-521. [PMID: 29373651 DOI: 10.1093/carcin/bgy012] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 01/22/2018] [Indexed: 02/07/2023] Open
Abstract
A growing body of epidemiologic evidence suggests that people with diabetes are at a significantly higher risk of many forms of cancer. However, the molecular mechanisms underlying this association are not fully understood. Cancer cells are surrounded by a complex milieu, also known as tumor microenvironment, which contributes to the development and metastasis of tumors. Of note, one of the major components of this niche is the extracellular matrix (ECM), which becomes highly disorganized during neoplastic progression, thereby stimulating cancer cell transformation, growth and spread. One of the consequences of chronic hyperglycemia, the most frequently observed sign of diabetes and the etiological source of diabetes complications, is the irreversible glycation and oxidation of proteins and lipids leading to the formation of the advanced glycation end-products (AGEs). These compounds may covalently crosslink and biochemically modify structure and functions of many proteins, and AGEs accumulation is particularly high in long-living proteins with low biological turnover, features that are shared by most, if not all, ECM proteins. AGEs-modified proteins are recognized by AGE-binding proteins, and thus glycated ECM components have the potential to trigger Receptor for advanced glycation end-products-dependent mechanisms. The biological consequence of receptor for advanced glycation end-products activation mechanisms seems to be connected, in different ways, to drive some hallmarks of cancer onset and tumor growth. The present review intends to highlight the potential impact of ECM glycation on tumor progression by triggering receptor for advanced glycation end-products-mediated mechanisms.
Collapse
Affiliation(s)
- Armando Rojas
- Biomedical Research Laboratories, Preclinical Sciences Department, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Carolina Añazco
- Biomedical Research Laboratories, Preclinical Sciences Department, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Ileana González
- Biomedical Research Laboratories, Preclinical Sciences Department, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Paulina Araya
- Biomedical Research Laboratories, Preclinical Sciences Department, Medicine Faculty, Catholic University of Maule, Talca, Chile
| |
Collapse
|
4
|
Kim JT, Kasukonis BM, Brown LA, Washington TA, Wolchok JC. Recovery from volumetric muscle loss injury: A comparison between young and aged rats. Exp Gerontol 2016; 83:37-46. [PMID: 27435497 DOI: 10.1016/j.exger.2016.07.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/01/2016] [Accepted: 07/15/2016] [Indexed: 12/21/2022]
Abstract
Termed volumetric muscle loss (VML), the bulk loss of skeletal muscle tissue either through trauma or surgery overwhelms the capacity for repair, leading to the formation of non-contractile scar tissue. The myogenic potential, along with other factors that influence wound repair are known to decline with age. In order to develop effective treatment strategies for VML injuries that are effective across a broad range of patient populations, it is necessary to understand how the response to VML injury is affected by aging. Towards this end, this study was conducted to compare the response of young and aged animal groups to a lower extremity VML injury. Young (3months, n=12) and aged (18months, n=8) male Fischer 344 rats underwent surgical VML injury of the tibialis anterior muscle. Three months after VML injury it was found that young TA muscle was on average 16% heavier than aged muscle when no VML injury was performed and 25% heavier when comparing VML treated young and aged animals (p<0.0001, p<0.0001). Peak contractile force for both the young and aged groups was found to decrease significantly following VML injury, producing 65% and 59% of the contralateral limbs' peak force, respectively (p<0.0001). However, there were no differences found for peak contractile force based on age, suggesting that VML affects muscle's ability to repair, regardless of age. In this study, we used the ratio of collagen I to MyoD expression as a metric for fibrosis vs. myogenesis. Decreasing fiber cross-sectional area with advancing age (p<0.005) coupled with the ratio of collagen I to MyoD expression, which increased with age, supports the thought that regeneration is impaired in the aged population in favor of fibrosis (p=0.0241). This impairment is also exacerbated by the contribution of VML injury, where a 77-fold increase in the ratio of collagen I to MyoD was observed in the aged group (p<0.0002). The aged animal model described in this study provides a tool for investigators exploring not only the development of VML injury strategies but also the effect of aging on muscle regeneration.
Collapse
Affiliation(s)
- John T Kim
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, United States
| | - Benjamin M Kasukonis
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, United States
| | - Lemuel A Brown
- Department of Health, Human Performance, and Recreation, College of Education and Health Professions, University of Arkansas, Fayetteville, AR, Fayetteville, AR 72701, United States
| | - Tyrone A Washington
- Department of Health, Human Performance, and Recreation, College of Education and Health Professions, University of Arkansas, Fayetteville, AR, Fayetteville, AR 72701, United States
| | - Jeffrey C Wolchok
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, United States.
| |
Collapse
|
5
|
Salehi H, Terrer E, Panayotov I, Levallois B, Jacquot B, Tassery H, Cuisinier F. Functional mapping of human sound and carious enamel and dentin with Raman spectroscopy. JOURNAL OF BIOPHOTONICS 2013; 6:765-774. [PMID: 22996995 DOI: 10.1002/jbio.201200095] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 07/22/2012] [Accepted: 07/30/2012] [Indexed: 06/01/2023]
Abstract
The goals of this trial were, first, to produce a Raman mapping of decay and sound dentin samples, through accurate analysis of the Raman band spectra variations of mineral and organic components. The second goal was to confirm the correlation between the Raman signal and the signal of a fluorescent camera, by assaying the concentration of pentosidine and natural collagen fluorescent crosslink using reverse phase high-pressure liquid chromatography. The first correlation assumed a possible relationship between the signal observed with the camera and Raman spectroscopy. The second correlation assumed an association with the Maillard reaction. Absence of a correlation for this trial was that no association could be found between Raman spectra characteristics, fluorescence variation and the HPLC assay. Our results void this absence.
Collapse
Affiliation(s)
- Hamideh Salehi
- Laboratory of Biology and Nano-science, EA4203, Montpellier University 1, 545 av du Pr Viala, 34193 cedex 5, Montpellier, France
| | | | | | | | | | | | | |
Collapse
|
6
|
Levallois B, Terrer E, Panayotov Y, Salehi H, Tassery H, Tramini P, Cuisinier F. Molecular structural analysis of carious lesions using micro-Raman spectroscopy. Eur J Oral Sci 2012; 120:444-51. [DOI: 10.1111/j.1600-0722.2012.00988.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2012] [Indexed: 01/01/2023]
Affiliation(s)
- Bernard Levallois
- EA 4203, UFR Odontologie, Université Montpellier 1; Montpellier Cedex; France
| | | | - Yvan Panayotov
- EA 4203, UFR Odontologie, Université Montpellier 1; Montpellier Cedex; France
| | - Hamideh Salehi
- EA 4203, UFR Odontologie, Université Montpellier 1; Montpellier Cedex; France
| | | | - Paul Tramini
- EA 4203, UFR Odontologie, Université Montpellier 1; Montpellier Cedex; France
| | - Frédéric Cuisinier
- EA 4203, UFR Odontologie, Université Montpellier 1; Montpellier Cedex; France
| |
Collapse
|
7
|
Sternberg Z, Hennies C, Sternberg D, Bistulfi GL, Kazim L, Benedict RHB, Chadha K, Leung C, Weinstock-Guttman B, Munschauer F. Plasma pentosidine: a potential biomarker in the management of multiple sclerosis. Mult Scler 2010; 17:157-63. [DOI: 10.1177/1352458510384123] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: The chronic inflammation associated with multiple sclerosis (MS) may lead to the upregulation of pentosidine. Objectives: This cross-sectional study compares plasma pentosidine levels among healthy controls (HCs) and patients with MS at different disease stages. The study also determines pentosidine's usefulness as a biomarker of MS disease activity and/or severity via its correlation with a number of indicators of MS disease. Methods: Pentosidine levels were analyzed in 98 MS patients and 43 HCs using reverse-phase high-pressure liquid chromatography with fluorescence detection. Results: Plasma pentosidine levels were significantly higher in MS patients when compared with HCs ( p = 0.02). Patients on disease-modifying therapies (DMTs) had lower plasma pentosidine levels when compared with DMT-naïve patients ( p = 0.01). Pentosidine plasma levels correlated with indicators of MS disease severity, including Extended Disability Status Scale ( p = 0.03), MS Severity Scale ( p = 0.01), and MS Functional Composite ( p = 0.03). No correlation between pentosidine levels and age, rate of clinical relapse, and disease duration was observed. Conclusions: Our results suggest that pentosidine could be a novel, inflammatory biomarker in MS clinical practice. Longitudinal studies are warranted to determine any causal relationship between changes in plasma pentosidine levels and MS disease pathology. These studies may pave the way for use of advanced glycation end product (AGE) inhibitors and AGE-breaking agents as new therapeutic modalities in MS.
Collapse
Affiliation(s)
- Zohara Sternberg
- Department of Neurology, Baird MS Center, Jacobs Neurological Institute, Buffalo, NY, USA
| | - Cassandra Hennies
- Department of Neurology, Baird MS Center, Jacobs Neurological Institute, Buffalo, NY, USA
| | - Daniel Sternberg
- Department of Neurology, Baird MS Center, Jacobs Neurological Institute, Buffalo, NY, USA
| | - Gaia L Bistulfi
- Department of Neurology, Baird MS Center, Jacobs Neurological Institute, Buffalo, NY, USA
| | - Latif Kazim
- Department of Neurology, Baird MS Center, Jacobs Neurological Institute, Buffalo, NY, USA
| | - Ralph HB Benedict
- Department of Neurology, Baird MS Center, Jacobs Neurological Institute, Buffalo, NY, USA
| | - Kailash Chadha
- Department of Neurology, Baird MS Center, Jacobs Neurological Institute, Buffalo, NY, USA
| | - Christopher Leung
- Department of Neurology, Baird MS Center, Jacobs Neurological Institute, Buffalo, NY, USA
| | | | - Frederick Munschauer
- Department of Neurology, Baird MS Center, Jacobs Neurological Institute, Buffalo, NY, USA
| |
Collapse
|
8
|
Spacek P, Adam M. HPLC METHOD FOR PENTOSIDINE DETERMINATION IN URINE, SERUM, AND TISSUES AS A MARKER OF GLYCATION AND OXIDATION LOADING OF THE ORGANISM. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-120005875] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- P. Spacek
- a Institute of Rheumatology , Na Slupi 4, 128 50 Prague 2, Czech Republic
| | - M. Adam
- a Institute of Rheumatology , Na Slupi 4, 128 50 Prague 2, Czech Republic
| |
Collapse
|
9
|
Ramasamy R, Vannucci SJ, Yan SSD, Herold K, Yan SF, Schmidt AM. Advanced glycation end products and RAGE: a common thread in aging, diabetes, neurodegeneration, and inflammation. Glycobiology 2005; 15:16R-28R. [PMID: 15764591 DOI: 10.1093/glycob/cwi053] [Citation(s) in RCA: 574] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The products of nonenzymatic glycation and oxidation of proteins and lipids, the advanced glycation end products (AGEs), accumulate in a wide variety of environments. AGEs may be generated rapidly or over long times stimulated by a range of distinct triggering mechanisms, thereby accounting for their roles in multiple settings and disease states. A critical property of AGEs is their ability to activate receptor for advanced glycation end products (RAGE), a signal transduction receptor of the immunoglobulin superfamily. It is our hypothesis that due to such interaction, AGEs impart a potent impact in tissues, stimulating processes linked to inflammation and its consequences. We hypothesize that AGEs cause perturbation in a diverse group of diseases, such as diabetes, inflammation, neurodegeneration, and aging. Thus, we propose that targeting this pathway may represent a logical step in the prevention/treatment of the sequelae of these disorders.
Collapse
|
10
|
Meli M, Granouillet OR, Reynaud E, Chamson LA, Frey J, Perier C. Changes in glycation of fibrous type I collagen during long-term in vitro incubation with glucose. JOURNAL OF PROTEIN CHEMISTRY 2003; 22:521-5. [PMID: 14703985 DOI: 10.1023/b:jopc.0000005501.48719.84] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The course of glycation of calf skin fibrous type I collagen was monitored in vitro under physiological conditions during an 8-week incubation period in order to take into account the long half-life of this protein. The formation of glycated compounds was measured by determining fructosamine, pentosidine, and carboxymethyllysine content. The incubation conditions were as physiological as possible in sterile saline phosphate buffer, except glucose concentration. With incubation medium containing 200 mmol glucose, fibrous collagen underwent solubilization; in addition an increase in fructosamine, pentosidine, and carboxymethyllysine content in both solubilized and remaining insoluble collagen was noticed. There was a spontaneous, restricted, and time-dependent native glycated state of collagen; high concentration glucose enhanced the formation of glycated compounds and induced changes in solubility and glycoxidated products. The production of pentosidine during incubation without glucose should be considered as an event resulting from the initial fructosamine. Whereas the production of carboxymethyllysine during long-term incubation with glucose provided indirect proof of an additional oxidative process after early glycated product formation. These experimental observations provide insight into the in vivo context of advanced glycation end product formation in chronic hyperglycemia and aging.
Collapse
Affiliation(s)
- M Meli
- Department of Biochemistry, University Hospital, 42055 Saint-Etienne, France
| | | | | | | | | | | |
Collapse
|
11
|
Meli M, Granouillet R, Reynaud E, Chamson A, Frey J, Perier C. In vitro glycoxidation of insoluble fibrous type I collagen: solubilization and advanced glycation end products. JOURNAL OF PROTEIN CHEMISTRY 2003; 22:527-31. [PMID: 14703986 DOI: 10.1023/b:jopc.0000005502.48925.34] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The deleterious effects of glycoxidation are dependent on the half-life of proteins. Collagen, the main component of extracellular matrices, is a long live protein and thus may be sensitive to the glycoxidation process. We incubated calf skin fibrous type I collagen in PBS at 37 degrees C with glucose. The fibrous type I collagen was solubilized and an increase in the amount of advanced glycation end products of the solubilized fraction was observed. As there was no bacterial contamination and no proteolytic activities in the incubation medium, the solubilization of fibrous type I collagen is probably due to the speculative production of the free radicals in our experimental conditions. To test this hypothesis, fibrous type I collagen was incubated in PBS with AAPH (2,2'azo-bis 2-aminodinopropane) a free radicals generator. AAPH induced a dramatic and dose dependent solubilization of fibrous type I collagen.
Collapse
Affiliation(s)
- M Meli
- Department of Biochemistry, University Hospital, 42055 Saint-Etienne, France
| | | | | | | | | | | |
Collapse
|
12
|
Deyl Z, Miksík I. Advanced separation methods for collagen parent alpha-chains, their polymers and fragments. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 2000; 739:3-31. [PMID: 10744310 DOI: 10.1016/s0378-4347(99)00515-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Current techniques used for collagen alpha-chains and their CNBr fragments are reviewed. Ion exchange, gel permeation, reversed-phase and affinity chromatography are discussed mainly from the preparative aspects as these are both the techniques of choice to remove biological matrix contaminants always present in collagen preparations and techniques routinely used for preparative purposes. Among electromigration procedures gel electrophoresis is widely used both for intact collagen alpha-chains and their fragments. Recently this technique was applied also for miniaturised preparations. Immunoblotting techniques serve more specific detection of otherwise hard to distinguish different collagen polypeptide chains. Capillary electromigration techniques brought recently new aspects of understanding the behaviour of collagen proteins upon different separation modes and seem to represent a smart perspective for better quantitation of individual collagen species.
Collapse
Affiliation(s)
- Z Deyl
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague.
| | | |
Collapse
|