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Zheng X, Xue Q, Wang Y, Lu L, Pan Y, Xu J, Zhang J. A. officinarum Hance - P. cablin (Blanco) Benth drug pair improves oxidative stress, intracellular Ca 2+ concentrations and apoptosis by inhibiting the AGE/RAGE axis to ameliorate diabetic gastroparesis: In vitro and in vivo studies. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117832. [PMID: 38280660 DOI: 10.1016/j.jep.2024.117832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 01/24/2024] [Indexed: 01/29/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alpinia officinarum Hance is a perennial natural medicine herbivorous plant, has been used in the management of treat stomach pain and diabetes, it is abundantly cultivated in Qiongzhong, Baisha and other places. P. cablin (Blanco) Benth, one of the most important traditional Chinese plants, which plays functions in antioxidant and gastrointestinal regulation, has been extensively planted in Hainan, Guangdong and other regions. AIM OF THE STUDY In this study, we investigated the role and underlying molecular mechanism of AP on diabetic gastroparesis (DGP) in vitro and in vivo. MATERIALS AND METHODS In this study, using ultra-high performance liquid chromatography-mass spectrometry/mass spectrometry (UPLC-MS/MS) to identify active compounds in A. officinarum Hance-P. cablin (Blanco) Benth drug pair (AP). Molecular docking were utilized to explore the potential mechanism of AP treatment of DGP. In in vitro assays, gastric smooth muscle cells (GSMCs) were treated with 35 mM glucose to promote apoptosis and construct the DGP model, which was treated with different concentrations of AP. Furthermore, transfection technology was used to overexpress RAGE in GSMCs and elucidate the underlying mechanisms of alleviation of DGP by AP. RESULTS Using UPLC-MS/MS analysis, nine components of AP were identified. We found that AP effectively blocked the increase in apoptosis, oxidative stress, and intracellular Ca2+ concentrations. For in vivo experiments, mice were fed with a high-fat irregular diet to construct DGP model, and AP was co-administered via oral gavage daily to prevent the development of DGP. Compared with DGP mice, AP significantly decreased fasting blood glucose levels and increased gastric emptying levels. Consistent with in vitro experiments, AP also considerably decreased the increase in oxidative stress in DGP mice. Mechanistically, AP alleviates apoptosis and DGP by decreasing oxidative stress and intracellular Ca2+ concentrations via the inhibition of the AGE/RAGE axis. CONCLUSIONS Collectively, this study has established that AP can improve DGP, and the mechanism may be related to the inhibition the AGE/RAGE axis to mitigate apoptosis and DGP. To summarize, this study provides a novel supplementary strategy for DGP treatment.
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Affiliation(s)
- Xiuwen Zheng
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Qianrong Xue
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Yinghuan Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Lu Lu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Yipeng Pan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Jian Xu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
| | - Junqing Zhang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of R & D on Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hepatobiliary and Liver Transplantation Department of Hainan Digestive Disease Center of The Second Affiliated Hospital of Hainan Medical University, Engineering Research Center of Tropical Medicine of Ministry of Education, The First Affiliated Hospital, Hainan Medical University, Haikou, China.
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Ye D, Miyoshi A, Ushitani T, Kadoya M, Igeta M, Konishi K, Shoji T, Yasuda K, Kitaoka S, Yagi H, Kuroda E, Yamamoto Y, Cheng J, Koyama H. RAGE in circulating immune cells is fundamental for hippocampal inflammation and cognitive decline in a mouse model of latent chronic inflammation. Brain Behav Immun 2024; 116:329-348. [PMID: 38142917 DOI: 10.1016/j.bbi.2023.12.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/29/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023] Open
Abstract
BACKGROUND Latent chronic inflammation has been proposed as a key mediator of multiple derangements in metabolic syndrome (MetS), which are increasingly becoming recognized as risk factors for age-related cognitive decline. However, the question remains whether latent chronic inflammation indeed induces brain inflammation and cognitive decline. METHODS A mouse model of latent chronic inflammation was constructed by a chronic subcutaneous infusion of low dose lipopolysaccharide (LPS) for four weeks. A receptor for advanced glycation end products (RAGE) knockout mouse, a chimeric myeloid cell specific RAGE-deficient mouse established by bone marrow transplantation and a human endogenous secretory RAGE (esRAGE) overexpressing adenovirus system were utilized to examine the role of RAGE in vivo. The cognitive function was examined by a Y-maze test, and the expression level of genes was determined by quantitative RT-PCR, western blot, immunohistochemical staining, or ELISA assays. RESULTS Latent chronic inflammation induced MetS features in C57BL/6J mice, which were associated with cognitive decline and brain inflammation characterized by microgliosis, monocyte infiltration and endothelial inflammation, without significant changes in circulating cytokines including TNF-α and IL-1β. These changes as well as cognitive impairment were rescued in RAGE knockout mice or chimeric mice lacking RAGE in bone marrow cells. P-selectin glycoprotein ligand-1 (PSGL-1), a critical adhesion molecule, was induced in circulating mononuclear cells in latent chronic inflammation in wild-type but not RAGE knockout mice. These inflammatory changes and cognitive decline induced in the wild-type mice were ameliorated by an adenoviral increase in circulating esRAGE. Meanwhile, chimeric RAGE knockout mice possessing RAGE in myeloid cells were still resistant to cognitive decline and brain inflammation. CONCLUSIONS These findings indicate that RAGE in inflammatory cells is necessary to mediate stimuli of latent chronic inflammation that cause brain inflammation and cognitive decline, potentially by orchestrating monocyte activation via regulation of PSGL-1 expression. Our results also suggest esRAGE-mediated inflammatory regulation as a potential therapeutic option for cognitive dysfunction in MetS with latent chronic inflammation.
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Affiliation(s)
- Dasen Ye
- Department of Diabetes, Endocrinology and Clinical Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Akio Miyoshi
- Department of Diabetes, Endocrinology and Clinical Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Tomoe Ushitani
- Department of Diabetes, Endocrinology and Clinical Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Manabu Kadoya
- Department of Diabetes, Endocrinology and Clinical Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Masataka Igeta
- Department of Biostatistics, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Kosuke Konishi
- Department of Diabetes, Endocrinology and Clinical Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Takuhito Shoji
- Department of Diabetes, Endocrinology and Clinical Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Koubun Yasuda
- Department of Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Shiho Kitaoka
- Department of Pharmacology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Hideshi Yagi
- Department of Anatomy and Cell Biology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Etsushi Kuroda
- Department of Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan
| | - Yasuhiko Yamamoto
- Department of Biochemistry and Molecular Biology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Jidong Cheng
- Department of Diabetes, Endocrinology and Clinical Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan; Department of Endocrinology, Xiang'an Hospital of Xiamen University, Xiamen, China
| | - Hidenori Koyama
- Department of Diabetes, Endocrinology and Clinical Immunology, School of Medicine, Hyogo Medical University, Nishinomiya, Japan.
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Naser N, Lonj CK, Rikard-Bell M, Sandow SL, Murphy TV. Advanced glycated end-products inhibit dilation through constitutive endothelial RAGE and Nox1/4 in rat isolated skeletal muscle arteries. Microcirculation 2024; 31:e12837. [PMID: 37985248 DOI: 10.1111/micc.12837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/17/2023] [Accepted: 11/07/2023] [Indexed: 11/22/2023]
Abstract
OBJECTIVE This study investigated the actions of advanced glycated end-products (AGE), their receptors (RAGE), and NAD(P)H oxidase (Nox) subtypes 1, 2, and 4 on mechanisms of endothelium-dependent dilation of the rat cremaster muscle artery (CMA). METHODS Immunofluorescence studies were used to examine expression of RAGE in rat arteries. ROS accumulation was measured using luminescence and fluorescence assays. Functional studies were performed using pressure myography. RESULTS High levels of RAGE expression were shown in the endothelial cells of the CMA, compared with low endothelial expression in middle cerebral and mesenteric arteries and the aorta. Exogenous AGE (in vitro glycated bovine serum albumin) stimulated H2O2 accumulation in CMA, which was prevented by the RAGE antagonist FPS-ZM1, the NAD(P)H oxidase (Nox) inhibitor apocynin and inhibited by the Nox1/4 inhibitor setanaxib, but not the Nox2 inhibitor GSK2795039. In functional studies, AGE inhibited vasodilation of CMA stimulated by acetylcholine, sodium nitroprusside, and the BKCa activator NS1619, but not adenosine-induced dilation. FPS-ZM1, apocynin, and setanaxib prevented the inhibitory effects of AGE on responses to acetylcholine and NS-1619. CONCLUSION These observations suggest RAGE are constitutively expressed in the endothelium of the rat CMA and may be activated by AGE to stimulate Nox1/4 and ROS formation with resulting inhibition of NO and BKCa-mediated endothelium-dependent dilation.
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Affiliation(s)
- Nadim Naser
- Physiology, School of Biomedical Sciences, UNSW Sydney, Sydney, Australia
| | - Chenchel K Lonj
- Physiology, School of Biomedical Sciences, UNSW Sydney, Sydney, Australia
| | - Matthew Rikard-Bell
- Physiology, School of Biomedical Sciences, UNSW Sydney, Sydney, Australia
- Townsville University Hospital, Townsville, Queensland, Australia
| | - Shaun L Sandow
- Biomedical Science, University of the Sunshine Coast, Maroochydore, Australia
- Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Timothy V Murphy
- Physiology, School of Biomedical Sciences, UNSW Sydney, Sydney, Australia
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Jiang S, Xia N, Buonfiglio F, Böhm EW, Tang Q, Pfeiffer N, Olinger D, Li H, Gericke A. High-fat diet causes endothelial dysfunction in the mouse ophthalmic artery. Exp Eye Res 2024; 238:109727. [PMID: 37972749 DOI: 10.1016/j.exer.2023.109727] [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: 07/13/2023] [Revised: 10/27/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
Obesity is a significant health concern that leads to impaired vascular function and subsequent abnormalities in various organs. The impact of obesity on ocular blood vessels, however, remains largely unclear. In this study, we examined the hypothesis that obesity induced by high-fat diet produces vascular endothelial dysfunction in the ophthalmic artery. Mice were subjected to a high-fat diet for 20 weeks, while age-matched controls were maintained on a standard diet. Reactivity of isolated ophthalmic artery segments was assessed in vitro. Reactive oxygen species (ROS) were quantified in cryosections by dihydroethidium (DHE) staining. Redox gene expression was determined in ophthalmic artery explants by real-time PCR. Furthermore, the expression of nicotinamide adenine dinucleotide phosphate oxidase 2 (NOX2), the receptor for advanced glycation end products (RAGE), and of the lectin-like oxidized low-density-lipoprotein receptor-1 (LOX-1) was determined in cryosections using immunofluorescence microscopy. Ophthalmic artery segments from mice on a high-fat diet exhibited impaired vasodilation responses to the endothelium-dependent vasodilator acetylcholine, while endothelium-independent responses to nitroprusside remained preserved. DHE staining intensity in the vascular wall was notably stronger in mice on a high-fat diet. Messenger RNA expression for NOX2 was elevated in the ophthalmic artery of mice subjected to high fat diet. Likewise, immunostainings revealed increased expression of NOX2 and of RAGE, but not of LOX-1. These findings suggest that a high-fat diet triggers endothelial dysfunction by inducing oxidative stress in the ophthalmic artery via involvement of RAGE and NOX2.
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Affiliation(s)
- Subao Jiang
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
| | - Ning Xia
- Department of Pharmacology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
| | - Francesco Buonfiglio
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
| | - Elsa W Böhm
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
| | - Qi Tang
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
| | - Norbert Pfeiffer
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
| | - Dominik Olinger
- Department of Pharmacology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
| | - Huige Li
- Department of Pharmacology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
| | - Adrian Gericke
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Langenbeckstrasse 1, 55131, Mainz, Germany.
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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.
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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.
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6
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Dai Y, Zhou S, Qiao L, Peng Z, Zhao J, Xu D, Wu C, Li M, Zeng X, Wang Q. Non-apoptotic programmed cell deaths in diabetic pulmonary dysfunction: the new side of advanced glycation end products. Front Endocrinol (Lausanne) 2023; 14:1126661. [PMID: 37964954 PMCID: PMC10641270 DOI: 10.3389/fendo.2023.1126661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 09/26/2023] [Indexed: 11/16/2023] Open
Abstract
Diabetes mellitus (DM) is a chronic metabolic disorder that affects multiple organs and systems, including the pulmonary system. Pulmonary dysfunction in DM patients has been observed and studied for years, but the underlying mechanisms have not been fully understood. In addition to traditional mechanisms such as the production and accumulation of advanced glycation end products (AGEs), angiopathy, tissue glycation, oxidative stress, and systemic inflammation, recent studies have focused on programmed cell deaths (PCDs), especially the non-apoptotic ones, in diabetic pulmonary dysfunction. Non-apoptotic PCDs (NAPCDs) including autophagic cell death, necroptosis, pyroptosis, ferroptosis, and copper-induced cell death have been found to have certain correlations with diabetes and relevant complications. The AGE-AGE receptor (RAGE) axis not only plays an important role in the traditional pathogenesis of diabetes lung disease but also plays an important role in non-apoptotic cell death. In this review, we summarize novel studies about the roles of non-apoptotic PCDs in diabetic pulmonary dysfunction and focus on their interactions with the AGE-RAGE axis.
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Affiliation(s)
- Yimin Dai
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Shuang Zhou
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Lin Qiao
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Zhao Peng
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Jiuliang Zhao
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Dong Xu
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Chanyuan Wu
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Mengtao Li
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Xiaofeng Zeng
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Qian Wang
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science and Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital (PUMCH), Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
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Atzeni IM, Al-Adwi Y, Doornbos-van der Meer B, Roozendaal C, Stel A, van Goor H, Gan CT, Dickinson M, Timens W, Smit AJ, Westra J, Mulder DJ. The soluble receptor for advanced glycation end products is potentially predictive of pulmonary arterial hypertension in systemic sclerosis. Front Immunol 2023; 14:1189257. [PMID: 37409127 PMCID: PMC10318928 DOI: 10.3389/fimmu.2023.1189257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 06/06/2023] [Indexed: 07/07/2023] Open
Abstract
Introduction Pulmonary arterial hypertension (PAH) and interstitial lung disease (ILD) are the leading causes of death in systemic sclerosis (SSc). Until now, no prospective biomarker to predict new onset of SSc-ILD or SSc-PAH in patients with SSc has reached clinical application. In homeostasis, the receptor for advanced glycation end products (RAGE) is expressed in lung tissue and involved in cell-matrix adhesion, proliferation and migration of alveolar epithelial cells, and remodeling of the pulmonary vasculature. Several studies have shown that sRAGE levels in serum and pulmonary tissue vary according to the type of lung-related complication. Therefore, we investigated levels of soluble RAGE (sRAGE) and its ligand high mobility group box 1 (HMGB1) in SSc and their abilities to predict SSc-related pulmonary complications. Methods One hundred eighty-eight SSc patients were followed retrospectively for the development of ILD, PAH, and mortality for 8 years. Levels of sRAGE and HMGB1 were measured in serum by ELISA. Kaplan-Meier survival curves were performed to predict lung events and mortality and event rates were compared with a log-rank test. Multiple linear regression analysis was performed to examine the association between sRAGE and important clinical determinants. Results At baseline, levels of sRAGE were significantly higher in SSc-PAH-patients (median 4099.0 pg/ml [936.3-6365.3], p = 0.011) and lower in SSc-ILD-patients (735.0 pg/ml [IQR 525.5-1988.5], p = 0.001) compared to SSc patients without pulmonary involvement (1444.5 pg/ml [966.8-2276.0]). Levels of HMGB1 were not different between groups. After adjusting for age, gender, ILD, chronic obstructive pulmonary disease, anti-centromere antibodies, the presence of puffy fingers or sclerodactyly, use of immunosuppression, antifibrotic therapy, or glucocorticoids, and use of vasodilators, higher sRAGE levels remained independently associated with PAH. After a median follow-up of 50 months (25-81) of patients without pulmonary involvement, baseline sRAGE levels in the highest quartile were predictive of development of PAH (log-rank p = 0.01) and of PAH-related mortality (p = 0.001). Conclusions High systemic sRAGE at baseline might be used as a prospective biomarker for patients with SSc at high risk to develop new onset of PAH. Moreover, high sRAGE levels could predict lower survival rates due to PAH in patients with SSc.
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Affiliation(s)
- Isabella M. Atzeni
- Department of Internal Medicine, Division of Vascular Medicine, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Yehya Al-Adwi
- Department of Internal Medicine, Division of Vascular Medicine, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Berber Doornbos-van der Meer
- Department of Rheumatology and Clinical Immunology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Caroline Roozendaal
- Department of Laboratory Medicine, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Alja Stel
- Department of Rheumatology and Clinical Immunology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Harry van Goor
- Department of Pathology and Medical Biology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - C. Tji Gan
- Department of Pulmonary Diseases and Tuberculosis, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Michael Dickinson
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Wim Timens
- Department of Pathology and Medical Biology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Andries J. Smit
- Department of Internal Medicine, Division of Vascular Medicine, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Johanna Westra
- Department of Rheumatology and Clinical Immunology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Douwe J. Mulder
- Department of Internal Medicine, Division of Vascular Medicine, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
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Ma J, Li Y, Yang X, Liu K, Zhang X, Zuo X, Ye R, Wang Z, Shi R, Meng Q, Chen X. Signaling pathways in vascular function and hypertension: molecular mechanisms and therapeutic interventions. Signal Transduct Target Ther 2023; 8:168. [PMID: 37080965 PMCID: PMC10119183 DOI: 10.1038/s41392-023-01430-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 03/03/2023] [Accepted: 03/31/2023] [Indexed: 04/22/2023] Open
Abstract
Hypertension is a global public health issue and the leading cause of premature death in humans. Despite more than a century of research, hypertension remains difficult to cure due to its complex mechanisms involving multiple interactive factors and our limited understanding of it. Hypertension is a condition that is named after its clinical features. Vascular function is a factor that affects blood pressure directly, and it is a main strategy for clinically controlling BP to regulate constriction/relaxation function of blood vessels. Vascular elasticity, caliber, and reactivity are all characteristic indicators reflecting vascular function. Blood vessels are composed of three distinct layers, out of which the endothelial cells in intima and the smooth muscle cells in media are the main performers of vascular function. The alterations in signaling pathways in these cells are the key molecular mechanisms underlying vascular dysfunction and hypertension development. In this manuscript, we will comprehensively review the signaling pathways involved in vascular function regulation and hypertension progression, including calcium pathway, NO-NOsGC-cGMP pathway, various vascular remodeling pathways and some important upstream pathways such as renin-angiotensin-aldosterone system, oxidative stress-related signaling pathway, immunity/inflammation pathway, etc. Meanwhile, we will also summarize the treatment methods of hypertension that targets vascular function regulation and discuss the possibility of these signaling pathways being applied to clinical work.
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Affiliation(s)
- Jun Ma
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China
| | - Yanan Li
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China
| | - Xiangyu Yang
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China
| | - Kai Liu
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China
| | - Xin Zhang
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China
| | - Xianghao Zuo
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China
| | - Runyu Ye
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China
| | - Ziqiong Wang
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China
| | - Rufeng Shi
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China
| | - Qingtao Meng
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China.
| | - Xiaoping Chen
- Department of Cardiology, West China Hospital, Sichuan University, No. 37, Guo Xue District, Chengdu, Sichuan, 610041, People's Republic of China.
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9
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Sousa AS, Passos MP, Ruberti OM, Jarrete AP, Delbin MA. Evaluation of coronary function in female rats with severe type 1 diabetes: Effects of combined treatment with insulin and pyridoxamine. Microvasc Res 2023; 146:104474. [PMID: 36592817 DOI: 10.1016/j.mvr.2022.104474] [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: 06/21/2022] [Revised: 12/06/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND This study aimed to evaluate the coronary function, myocardium, and epicardial adipose tissue (EAT) in female rats with severe type 1 diabetes and the effects of combined treatment with insulin and pyridoxamine (AGEs inhibitor). METHODS Female Wistar rats were divided into groups: control (CTR, n = 13), type 1 diabetes (DM1, n = 12), type 1 diabetes treated with insulin (DM1 + INS, n = 11), and type 1 diabetes treated with insulin and pyridoxamine (DM1 + INS + PDX, n = 14). The vascular responsiveness was performed in the septal coronary artery and the protein expressions of AGE, RAGE, GPER, NF-kB was evaluated in the left ventricle (LV), as well as the reactive oxygen species (ROS) was measured in LV and in EAT. We analyzed plasma levels of glucose, estradiol, Nε-carboxymethylisine (CML), thiobarbituric acid reactive substances (TBARS), catalase (CAT), and superoxide dismutase (SOD). RESULTS The maximal responses to ACh were reduced in the DM1 compared with the CTR group, accompanied by an increase in circulating glucose, CML, and TBARS. Additionally, the expression of NF-kB in LV and generation of ROS in the presence of MnTMPyP (SOD mimetic) were increased in the DM1 group compared with CTR. Only the combined treatment was effective for fully re-establish ACh relaxation response, NF-kB protein expression, ROS generation, and increased SOD activity in the DM1 + INS + PDX group. CONCLUSION The reduction of the endothelium-dependent relaxation response in the septal coronary artery of female rats with severe type 1 diabetes was normalized with the combined treatment with insulin and pyridoxamine, associated with reduced inflammation and oxidative stress in the myocardium and increased circulating antioxidant activity.
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Affiliation(s)
- Andressa S Sousa
- Department of Structural and Functional Biology, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Matheus P Passos
- Department of Structural and Functional Biology, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Olivia M Ruberti
- Department of Structural and Functional Biology, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Aline P Jarrete
- Department of Structural and Functional Biology, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Maria A Delbin
- Department of Structural and Functional Biology, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil.
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Froldi G, Ragazzi E. Selected Plant-Derived Polyphenols as Potential Therapeutic Agents for Peripheral Artery Disease: Molecular Mechanisms, Efficacy and Safety. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27207110. [PMID: 36296702 PMCID: PMC9611444 DOI: 10.3390/molecules27207110] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 11/07/2022]
Abstract
Vascular diseases, such as peripheral artery disease (PAD), are associated with diabetes mellitus and a higher risk of cardiovascular disease and even death. Surgical revascularization and pharmacological treatments (mainly antiplatelet, lipid-lowering drugs, and antidiabetic agents) have some effectiveness, but the response and efficacy of therapy are overly dependent on the patient’s conditions. Thus, the demand for new cures exists. In this regard, new studies on natural polyphenols that act on key points involved in the pathogenesis of vascular diseases and, thus, on PAD are of great urgency. The purpose of this review is to take into account the mechanisms that lead to endothelium dysfunction, such as the glycoxidation process and the production of advanced glycation end-products (AGEs) that result in protein misfolding, and to suggest plant-derived polyphenols that could be useful in PAD. Thus, five polyphenols are considered, baicalein, curcumin, mangiferin, quercetin and resveratrol, reviewing the literature in PubMed. The key molecular mechanisms and preclinical and clinical studies of each selected compound are examined. Furthermore, the safety profiles of the polyphenols are outlined, together with the unwanted effects reported in humans, also by searching the WHO database (VigiBase).
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Shikata E, Miyamoto T, Yamaguchi T, Yamaguchi I, Kagusa H, Gotoh D, Shimada K, Tada Y, Yagi K, Kitazato KT, Kanematsu Y, Takagi Y. An imbalance between RAGE/MR/HMGB1 and ATP1α3 is associated with inflammatory changes in rat brain harboring cerebral aneurysms prone to rupture. J Neuroinflammation 2022; 19:161. [PMID: 35725479 PMCID: PMC9210698 DOI: 10.1186/s12974-022-02526-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 05/24/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND AND PURPOSE An aneurysmal subarachnoid hemorrhage is a devastating event. To establish an effective therapeutic strategy, its pathogenesis must be clarified, particularly the pathophysiology of brain harboring intracranial aneurysms (IAs). To elucidate the pathology in brain harboring IAs, we examined the significance of the receptor for advanced glycation end-products (RAGE)/mineralocorticoid receptor (MR) pathway and Na+/K+-ATPase (ATP1α3). METHODS Ten-week-old female rats were subjected to oophorectomy as well as hypertension and hemodynamic changes to induce IAs, and were fed a high-salt diet. Brain damage in these rats was assessed by inflammatory changes in comparison to sham-operated rats fed a standard diet. RESULTS Six weeks after IA induction (n = 30), irregular morphological changes, i.e., an enlarged vessel diameter and vascular wall, were observed in all of the left posterior cerebral arteries (Lt PCAs) prone to rupture. Approximately 20% of rats had ruptured IAs within 6 weeks. In brain harboring unruptured IAs at the PCA, the mRNA levels of RAGE and MR were higher, and that of ATP1α3 was lower than those in the sham-operated rats (p < 0.05, each). Immunohistochemically, elevated expression of RAGE and MR, and decreased expression of ATP1α3 were observed in the brain parenchyma adjacent to the Lt PCA, resulting in increased Iba-1 and S100B expression that reflected the inflammatory changes. There was no difference between the unruptured and ruptured aneurysm rat groups. Treatment with the MR antagonist esaxerenone abrogated these changes, and led to cerebral and vascular normalization and prolonged subarachnoid hemorrhage-free survival (p < 0.05). CONCLUSIONS Regulation of the imbalance between the RAGE/MR pathway and ATP1α3 may help attenuate the damage in brain harboring IAs, and further studies are warranted to clarify the significance of the down-regulation of the MR/RAGE pathway and the up-regulation of ATP1α3 for attenuating the pathological changes in brain harboring IAs.
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Affiliation(s)
- Eiji Shikata
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan.
| | - Takeshi Miyamoto
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Tadashi Yamaguchi
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Izumi Yamaguchi
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Hiroshi Kagusa
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Daiki Gotoh
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Kenji Shimada
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yoshiteru Tada
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Kenji Yagi
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Keiko T Kitazato
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yasuhisa Kanematsu
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yasushi Takagi
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
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Beyond the Alveolar Epithelium: Plasma Soluble Receptor for Advanced Glycation End Products Is Associated With Oxygenation Impairment, Mortality, and Extrapulmonary Organ Failure in Children With Acute Respiratory Distress Syndrome. Crit Care Med 2022; 50:837-847. [PMID: 34678846 PMCID: PMC9035468 DOI: 10.1097/ccm.0000000000005373] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVES Soluble receptor for advanced glycation end products is a known plasma marker of alveolar epithelial injury. However, RAGE is also expressed on cell types beyond the lung, and its activation leads to up-regulation of pro-inflammatory mediators. We sought to examine the relationship between plasma soluble receptor for advanced glycation end products and primary pulmonary dysfunction, extrapulmonary organ dysfunction, and mortality in pediatric acute respiratory distress syndrome patients at two early time points following acute respiratory distress syndrome diagnosis and compare these results to plasma surfactant protein-D, a marker of pure alveolar epithelial injury. DESIGN Prospective observational study. SETTING Five academic PICUs. PATIENTS Two hundred fifty-eight pediatric patients 30 days to 18 years old meeting Berlin Criteria for acute respiratory distress syndrome. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Plasma was collected for soluble receptor for advanced glycation end products and surfactant protein-D measurements within 24 hours (day 1) and 48 to 72 hours (day 3) after acute respiratory distress syndrome diagnosis. Similar to surfactant protein-D, plasma soluble receptor for advanced glycation end products was associated with a higher oxygenation index (p < 0.01) and worse lung injury score (p < 0.001) at the time of acute respiratory distress syndrome diagnosis. However, unlike surfactant protein-D, plasma soluble receptor for advanced glycation end products was associated with worse extrapulmonary Pediatric Logistic Organ Dysfunction score during ICU stay (day 3; p < 0.01) and positively correlated with plasma levels of interleukin-6 (p < 0.01), tumor necrosis factor-α (p < 0.01), and angiopoietin-2 (p < 0.01). Among children with indirect lung injury, plasma soluble receptor for advanced glycation end products was associated with mortality independent of age, sex, race, cancer/bone marrow transplant, and Pediatric Risk of Mortality score (day 3; odds ratio, 3.14; 95% CI, 1.46-6.75; p < 0.01). CONCLUSIONS Unlike surfactant protein-D, which is primarily localized to the alveolar epithelium plasma soluble receptor for advanced glycation end products is systemically expressed and correlates with markers of inflammation, extrapulmonary multiple organ dysfunction, and death in pediatric acute respiratory distress syndrome with indirect lung injury. This suggests that unlike surfactant protein-D, soluble receptor for advanced glycation end products is a multifaceted marker of alveolar injury and increased inflammation and that receptor for advanced glycation end products activation may contribute to the pathogenesis of multiple organ failure among children with indirect acute respiratory distress syndrome.
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许 笑, 储 全, 储 俊, 蔡 正, 轩 云, 罗 宝, 李 帅, 陈 静, 罗 世, 王 悦. [Effect of dissipating phlegm and blood stasis simultaneously on AGEs/RAGE axis and oxidative stress in rats with diabetic myocardial microangiopathy]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:1527-1533. [PMID: 34755668 PMCID: PMC8586855 DOI: 10.12122/j.issn.1673-4254.2021.10.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of dissipating phlegm and blood stasis simultaneously for protecting cardiac microvascular endothelial cells (CMECs) against high glucose-induced injury and the role of AGEs/RAGE axis in the underlying mechanism. METHODS The primary CMECs were isolated from rat heart by enzymatic digestion and identified by immunofluorescence assay. The CMECs exposed to 33 mmol/L glucose for 48 h were divided into model group (MC), resolving phlegm (RP) group, dissipating blood stasis (DBS) group, dissipating phlegm and blood stasis (RPDBS) group and ALT-711 group. After treatment with 10% drug-containing serum and ALT-711 for 48 h, the content of AGEs in the cells were measured with ELISA. The expressions of RAGE mRNA and protein were measured with real-time quantitative PCR, immunofluorescence assay and Western blotting; The activity of NADPH oxidase and ROS level were measured by cytochrome c reduction and fluorescent probe DHE. RESULTS High glucose exposure significantly increased the content of AGEs, RAGE expressions at the protein and mRNA levels, NADPH oxidase activity and ROS level in the CMECs (P < 0.01). These changes were significantly mitigated by treatments with RP, DBS, RPDBS and ALT-711 (P < 0.01), among which RPDBS caused the most significant decrements in AGEs content, RAGE expression and NADPH oxidase activity (P < 0.01, P < 0.05). The reduction of ROS level in the RPDBS group was significantly greater than that in RP group (P < 0.01), but similar to that in DBS group (P > 0.05). CONCLUSION Dissipating phlegm and blood stasis simultaneously can be helpful for prevention and treatment of diabetic myocardial microangiopathy by suppressing the excessive activation of AGEs-RAGE signal axis and oxidative stress, thus protecting CMECs against high glucose-induced damage. Dissipating phlegm and blood stasis simultaneously is better than either of the therapy alone.
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Affiliation(s)
- 笑雯 许
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
| | - 全根 储
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
- 安徽中医药大学教育部新安医学重点实验室,安徽 合肥 230038Key Laboratory of Xin'an Medicine of Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - 俊 储
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
- 安徽中医药大学教育部新安医学重点实验室,安徽 合肥 230038Key Laboratory of Xin'an Medicine of Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - 正银 蔡
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
| | - 云 轩
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
| | - 宝璐 罗
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
| | - 帅 李
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
| | - 静 陈
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
| | - 世旷 罗
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
| | - 悦琦 王
- 安徽中医药大学,安徽 合肥 230038Anhui University of Chinese Medicine, Hefei 230038, China
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Linkens AMA, Houben AJHM, Kroon AA, Schram MT, Berendschot TTJM, Webers CAB, van Greevenbroek M, Henry RMA, de Galan B, Stehouwer CDA, Eussen SJMP, Schalkwijk CG. Habitual intake of dietary advanced glycation end products is not associated with generalized microvascular function-the Maastricht Study. Am J Clin Nutr 2021; 115:444-455. [PMID: 34581759 PMCID: PMC8827096 DOI: 10.1093/ajcn/nqab302] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 08/24/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Endogenously formed advanced glycation end products (AGEs) may be important drivers of microvascular dysfunction and the microvascular complications of diabetes. AGEs are also formed in food products, especially during preparation methods involving dry heat. OBJECTIVES We aimed to assess cross-sectional associations between dietary AGE intake and generalized microvascular function in a population-based cohort. METHODS In 3144 participants of the Maastricht Study (mean ± SD age: 60 ± 8 y, 51% men) the dietary AGEs Nε-(carboxymethyl)lysine (CML), Nε-(1-carboxyethyl)lysine (CEL), and Nδ-(5-hydro-5-methyl-4-imidazolon-2-yl)-ornithine (MG-H1) were estimated using the combination of our ultra-performance LC-tandem MS dietary AGE database and an FFQ. Microvascular function was determined in the retina as flicker light-induced arteriolar and venular dilation and as central retinal arteriolar and venular equivalents, in plasma as a z score of endothelial dysfunction biomarkers (soluble vascular adhesion molecule 1 and soluble intracellular adhesion molecule 1, soluble E-selectin, and von Willebrand factor), in skin as the heat-induced skin hyperemic response, and in urine as 24-h albuminuria. Associations were evaluated using multiple linear regression adjusting for demographic, cardiovascular, lifestyle, and dietary factors. RESULTS Overall, intakes of CML, CEL, and MG-H1 were not associated with the microvascular outcomes. Although higher intake of CEL was associated with higher flicker light-induced venular dilation (β percentage change over baseline: 0.14; 95% CI: 0.02, 0.26) and lower plasma biomarker z score (β: -0.04 SD; 95% CI: -0.08, -0.00 SD), the effect sizes were small and their biological relevance can be questioned. CONCLUSIONS We did not show any strong association between habitual intake of dietary AGEs and generalized microvascular function. The contribution of dietary AGEs to generalized microvascular function should be further assessed in randomized controlled trials using specifically designed dietary interventions.
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Affiliation(s)
- Armand M A Linkens
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, Netherlands,CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands
| | - Alfons J H M Houben
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, Netherlands,CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands
| | - Abraham A Kroon
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, Netherlands,CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands
| | - Miranda T Schram
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, Netherlands,CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands
| | - Tos T J M Berendschot
- University Eye Clinic Maastricht, Maastricht University Medical Center, Maastricht, Netherlands
| | - Carroll A B Webers
- University Eye Clinic Maastricht, Maastricht University Medical Center, Maastricht, Netherlands
| | - Marleen van Greevenbroek
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, Netherlands,CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands
| | - Ronald M A Henry
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, Netherlands,CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands,Heart and Vascular Center, Maastricht University Medical Center, Maastricht, Netherlands
| | - Bastiaan de Galan
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, Netherlands,CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands
| | - Coen D A Stehouwer
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, Netherlands,CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands
| | - Simone J M P Eussen
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands,Department of Epidemiology, Maastricht University, Maastricht, Netherlands,CAPHRI School for Care and Public Health Research Unit, Maastricht University, Maastricht, Netherlands
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15
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Zeng Y, Li N, Zheng Z, Chen R, Liu W, Cheng J, Zhu J, Zeng M, Peng M, Hong C. Screening of key biomarkers and immune infiltration in Pulmonary Arterial Hypertension via integrated bioinformatics analysis. Bioengineered 2021; 12:2576-2591. [PMID: 34233597 PMCID: PMC8806790 DOI: 10.1080/21655979.2021.1936816] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
This study aimed to screen key biomarkers and investigate immune infiltration in pulmonary arterial hypertension (PAH) based on integrated bioinformatics analysis. The Gene Expression Omnibus (GEO) database was used to download three mRNA expression profiles comprising 91 PAH lung specimens and 49 normal lung specimens. Three mRNA expression datasets were combined, and differentially expressed genes (DEGs) were obtained. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses and the protein-protein interaction (PPI) network of DEGs were performed using the STRING and DAVID databases, respectively. The diagnostic value of hub gene expression in PAH was also analyzed. Finally, the infiltration of immune cells in PAH was analyzed using the CIBERSORT algorithm. Total 182 DEGs (117 upregulated and 65 downregulated) were identified, and 15 hub genes were screened. These 15 hub genes were significantly associated with immune system functions such as myeloid leukocyte migration, neutrophil migration, cell chemotaxis, Toll-like receptor signaling pathway, and NF-κB signaling pathway. A 7-gene-based model was constructed and had a better diagnostic value in identifying PAH tissues compared with normal controls. The immune infiltration profiles of the PAH and normal control samples were significantly different. High proportions of resting NK cells, activated mast cells, monocytes, and neutrophils were found in PAH samples, while high proportions of resting T cells CD4 memory and Macrophages M1 cell were found in normal control samples. Functional enrichment of DEGs and immune infiltration analysis between PAH and normal control samples might help to understand the pathogenesis of PAH.
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Affiliation(s)
- Yu Zeng
- Department of Respiration, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Nanhong Li
- Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Zhenzhen Zheng
- Department of Respiration, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Riken Chen
- China State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wang Liu
- Department of Respiration, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Junfen Cheng
- Department of Respiration, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Jinru Zhu
- Department of Respiration, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Mingqing Zeng
- First Clinical School of Medicine, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Min Peng
- Department of Respiration, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Cheng Hong
- China State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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16
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Marulanda K, Mercel A, Gillis DC, Sun K, Gambarian M, Roark J, Weiss J, Tsihlis ND, Karver MR, Centeno SR, Peters EB, Clemons TD, Stupp SI, McLean SE, Kibbe MR. Intravenous Delivery of Lung-Targeted Nanofibers for Pulmonary Hypertension in Mice. Adv Healthc Mater 2021; 10:e2100302. [PMID: 34061473 PMCID: PMC8273153 DOI: 10.1002/adhm.202100302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/15/2021] [Indexed: 01/11/2023]
Abstract
Pulmonary hypertension is a highly morbid disease with no cure. Available treatments are limited by systemic adverse effects due to non-specific biodistribution. Self-assembled peptide amphiphile (PA) nanofibers are biocompatible nanomaterials that can be modified to recognize specific biological markers to provide targeted drug delivery and reduce off-target toxicity. Here, PA nanofibers that target the angiotensin I-converting enzyme and the receptor for advanced glycation end-products (RAGE) are developed, as both proteins are overexpressed in the lung with pulmonary hypertension. It is demonstrated that intravenous delivery of RAGE-targeted nanofibers containing the targeting epitope LVFFAED (LVFF) significantly accumulated within the lung in a chronic hypoxia-induced pulmonary hypertension mouse model. Using 3D light sheet fluorescence microscopy, it is shown that LVFF nanofiber localization is specific to the diseased pulmonary tissue with immunofluorescence analysis demonstrating colocalization of the targeted nanofiber to RAGE in the hypoxic lung. Furthermore, biodistribution studies show that significantly more LVFF nanofibers localized to the lung compared to major off-target organs. Targeted nanofibers are retained within the pulmonary tissue for 24 h after injection. Collectively, these data demonstrate the potential of a RAGE-targeted nanomaterial as a drug delivery platform to treat pulmonary hypertension.
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Affiliation(s)
- Kathleen Marulanda
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Alexandra Mercel
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - David C Gillis
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Kui Sun
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Maria Gambarian
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Joshua Roark
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Jenna Weiss
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Nick D Tsihlis
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Mark R Karver
- Simpson Querrey Institute, Northwestern University, 303 E. Superior Street, Chicago, IL, 60611, USA
| | - S Ruben Centeno
- Department of Pediatrics, University of North Carolina, 260 MacNider Building CB# 7220, Chapel Hill, NC, 27599, USA
| | - Erica B Peters
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Tristan D Clemons
- Simpson Querrey Institute, Northwestern University, 303 E. Superior Street, Chicago, IL, 60611, USA
| | - Samuel I Stupp
- Simpson Querrey Institute, Northwestern University, 303 E. Superior Street, Chicago, IL, 60611, USA
| | - Sean E McLean
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
| | - Melina R Kibbe
- Department of Surgery, University of North Carolina, 4041 Burnett Womack, 101 Manning Drive, Chapel Hill, NC, 27599, USA
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17
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Mikolka P, Kosutova P, Balentova S, Cierny D, Kopincova J, Kolomaznik M, Adamkov M, Calkovska A, Mokra D. Early cardiac injury in acute respiratory distress syndrome: comparison of two experimental models. Physiol Res 2020; 69:S421-S432. [PMID: 33471542 DOI: 10.33549/physiolres.934591] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) is characterized by diffuse lung damage, inflammation, oedema formation, and surfactant dysfunction leading to hypoxemia. Severe ARDS can accelerate the injury of other organs, worsening the patient´s status. There is an evidence that the lung tissue injury affects the right heart function causing cor pulmonale. However, heart tissue changes associated with ARDS are still poorly known. Therefore, this study evaluated oxidative and inflammatory modifications of the heart tissue in two experimental models of ARDS induced in New Zealand rabbits by intratracheal instillation of neonatal meconium (100 mg/kg) or by repetitive lung lavages with saline (30 ml/kg). Since induction of the respiratory insufficiency, all animals were oxygen-ventilated for next 5 h. Total and differential counts of leukocytes were measured in the arterial blood, markers of myocardial injury [(troponin, creatine kinase - myocardial band (CK-MB), lactate dehydrogenase (LD)] in the plasma, and markers of inflammation [tumour necrosis factor (TNF)alpha, interleukin (IL)-6], cardiovascular risk [galectin-3 (Gal-3)], oxidative changes [thiobarbituric acid reactive substances (TBARS), 3-nitrotyrosine (3NT)], and vascular damage [receptor for advanced glycation end products (RAGE)] in the heart tissue. Apoptosis of heart cells was investigated immunohistochemically. In both ARDS models, counts of total leukocytes and neutrophils in the blood, markers of myocardial injury, inflammation, oxidative and vascular damage in the plasma and heart tissue, and heart cell apoptosis increased compared to controls. This study indicates that changes associated with ARDS may contribute to early heart damage what can potentially deteriorate the cardiac function and contribute to its failure.
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Affiliation(s)
- P Mikolka
- Department of Physiology and Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic.
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18
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Advanced Glycation End Products Induce Proliferation and Migration of Human Aortic Smooth Muscle Cells through PI3K/AKT Pathway. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8607418. [PMID: 32733959 PMCID: PMC7376398 DOI: 10.1155/2020/8607418] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 06/29/2020] [Indexed: 02/08/2023]
Abstract
Advanced glycation end products (AGEs) have been widely regarded as an important inducing factor in the pathogenesis of diabetic arteriosclerosis, and the proliferation and migration of vascular smooth muscle cells (VSMCs) are also involved in this process. However, it is not clear whether AGEs promote atherosclerosis by inducing the proliferation and migration of VSMCs. To figure out this question, this study investigated the effects of AGEs on the proliferation and migration of human aorta vascular smooth muscle cells (HASMCs) and the underlying mechanisms. This study evaluated the effects of different concentrations of AGEs on cell proliferation and migration. CCK8, transwell, and western blotting assays demonstrated that AGEs significantly increased cell proliferation and migration in a concentration-dependent manner and that the optimal proproliferative and promigratory concentrations of AGEs were 10 mg/L and 20 mg/L, respectively. AGE-induced cell proliferation, migration, and expression of filament actin (F-actin) were markedly attenuated by a PI3K inhibitor (LY2940002). Additionally, the phosphorylation of AKT was reduced when the receptor of advanced glycation end product (RAGE) gene was silenced by lentivirus transfection, which led to a concomitant reduction of the expression of proliferation and migration-related proteins. These data indicate that AGEs may activate the PI3K/AKT pathway through RAGE and thus facilitate the proliferation and migration of HASMCs.
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Beck L, Su J, Comerma-Steffensen S, Pinilla E, Carlsson R, Hernanz R, Sheykhzade M, Danielsen CC, Simonsen U. Endothelial Dysfunction and Passive Changes in the Aorta and Coronary Arteries of Diabetic db/db Mice. Front Physiol 2020; 11:667. [PMID: 32655412 PMCID: PMC7324802 DOI: 10.3389/fphys.2020.00667] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 05/25/2020] [Indexed: 12/19/2022] Open
Abstract
Endothelial cell dysfunction and vessel stiffening are associated with a worsened prognosis in diabetic patients with cardiovascular diseases. The present study hypothesized that sex impacts endothelial dysfunction and structural changes in arteries from diabetic mice. In diabetic (db/db) and normoglycaemic (db/db+) mice, the mechanical properties were investigated in pressurized isolated left anterior descending coronary arteries and aorta segments that were subjected to tensile testing. Functional studies were performed on wire-mounted vascular segments. The male and female db/db mice were hyperglycaemic and had markedly increased body weight. In isolated aorta segments without the contribution of smooth muscle cells, load to rupture, viscoelasticity, and collagen content were decreased suggesting larger distensibility of the arterial wall in both male and female db/db mice. In male db/db aorta segments with smooth muscle cell contribution, lumen diameter was smaller and the passive stretch-tension curve was leftward-shifted, while they were unaltered in female db/db aorta segments versus control db/db+ mice. In contrast to female db/db mice, coronary arteries from male db/db mice had altered stress-strain relationships and increased distensibility. Transthoracic echocardiography revealed a dilated left ventricle with unaltered cardiac output, while aortic flow velocity was decreased in male db/db mice. Impairment of acetylcholine relaxation was aggravated in aorta from female db/db compared to control and male db/db mice, while impairment of sodium nitroprusside relaxations was only observed in aorta from male db/db mice. The remodeling in the coronary arteries and aorta suggests an adaptation of the arterial wall to the reduced flow velocity with sex-specific differences in the passive properties of aorta and coronary arteries. The findings of less distensible arteries and more pronounced endothelial dysfunction in female compared to male diabetic mice may have implications for the observed higher incidence of macrovascular complications in diabetic women.
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Affiliation(s)
- Lilliana Beck
- Department of Biomedicine, Pulmonary and Cardiovascular Pharmacology, Faculty of Health Aarhus University, Aarhus, Denmark
| | - Junjing Su
- Department of Biomedicine, Pulmonary and Cardiovascular Pharmacology, Faculty of Health Aarhus University, Aarhus, Denmark
| | - Simon Comerma-Steffensen
- Department of Biomedicine, Pulmonary and Cardiovascular Pharmacology, Faculty of Health Aarhus University, Aarhus, Denmark
- Department of Biomedical Sciences/Animal Physiology, Veterinary Faculty, Central University of Venezuela, Maracay, Venezuela
| | - Estéfano Pinilla
- Department of Biomedicine, Pulmonary and Cardiovascular Pharmacology, Faculty of Health Aarhus University, Aarhus, Denmark
| | - Rune Carlsson
- Department of Biomedicine, Pulmonary and Cardiovascular Pharmacology, Faculty of Health Aarhus University, Aarhus, Denmark
| | - Raquel Hernanz
- Department of Biomedicine, Pulmonary and Cardiovascular Pharmacology, Faculty of Health Aarhus University, Aarhus, Denmark
- Departamento de Ciencias Básicas de la Salud, Universidad Rey Juan Carlos, Alcorcón, Spain
| | - Majid Sheykhzade
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Carl Christian Danielsen
- Department of Biomedicine, Pulmonary and Cardiovascular Pharmacology, Faculty of Health Aarhus University, Aarhus, Denmark
| | - Ulf Simonsen
- Department of Biomedicine, Pulmonary and Cardiovascular Pharmacology, Faculty of Health Aarhus University, Aarhus, Denmark
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20
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Ahmed MAE, El Morsy EM, Ahmed AAE. Protective effects of febuxostat against paraquat-induced lung toxicity in rats: Impact on RAGE/PI3K/Akt pathway and downstream inflammatory cascades. Life Sci 2019; 221:56-64. [PMID: 30726711 DOI: 10.1016/j.lfs.2019.02.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/25/2019] [Accepted: 02/02/2019] [Indexed: 01/09/2023]
Abstract
AIMS The herbicide paraquat causes fatal lung toxicity by induction of xanthine oxidase, production of free radicals and inflammation. Febuxostat, a xanthine oxidase inhibitor and anti-gout has recently shown anti-inflammatory activity. Accordingly, this study was carried out to investigate whether febuxostat may attenuate paraquat-induced lung toxicity and to explore the possible underlying mechanisms. MAIN METHODS Rats were administered either vehicle, a single dose of paraquat (30 mg/kg, i.p.), febuxostat (15 mg/kg, oral), or both for 14 successive days. Serum LDH and sRAGE were estimated. Lung tissue xanthine oxidase activity, SOD, TAC, MDA, and RAGE, HMGB1 gene expression, PI3K/Akt and β-catenin protein expression, MMP-9, IL-8, VEGF and COX-2 gene expression were estimated. KEY FINDINGS Results showed that paraquat induced lung injury characterized by enhanced oxidative stress and inflammation, upregulated RAGE, HMGB1 gene expression, PI3K/Akt and β-catenin protein expression. Administration of febuxostat inhibited the deleterious effects of paraquat on lung through inhibition of xanthine oxidase activity and related oxidative stress, downregulation of RAGE/PI3K/Akt pathway, and suppression of β-catenin protein expression and its downstream inflammatory mediators. SIGNIFICANCE The present study showed that febuxostat may abrogate paraquat-induced lung toxicity and demonstrated a novel mechanism for its ameliorative effects.
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Affiliation(s)
- Maha A E Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), 6th of October City, Giza, Egypt.
| | - Engy M El Morsy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, Egypt
| | - Amany A E Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo, Egypt
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21
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Jia D, He Y, Zhu Q, Liu H, Zuo C, Chen G, Yu Y, Lu A. RAGE-mediated extracellular matrix proteins accumulation exacerbates HySu-induced pulmonary hypertension. Cardiovasc Res 2018; 113:586-597. [PMID: 28407046 DOI: 10.1093/cvr/cvx051] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 03/16/2017] [Indexed: 01/05/2023] Open
Abstract
Aims Extracellular matrix (ECM) proteins accumulation contributes to the progression of pulmonary arterial hypertension (PAH), a rare and fatal cardiovascular condition defined by high pulmonary arterial pressure, whether primary, idiopathic, or secondary to other causes. The receptor for advanced glycation end products (RAGE) is constitutively expressed in the lungs and plays an important role in ECM deposition. Nonetheless, the mechanisms by which RAGE mediates ECM deposition/formation in pulmonary arteries and its roles in PAH progression remain unclear. Methods and results Expression of RAGE and its activating ligands, S100/calgranulins and high mobility group box 1 (HMGB1), were increased in both human and mouse pulmonary arterial smooth muscle cells (PASMCs) under hypoxic conditions and were also strikingly upregulated in pulmonary arteries in hypoxia plus SU5416 (HySu)-induced PAH in mice. RAGE deletion alleviated pulmonary arterial pressure and restrained extracellular matrix accumulation in pulmonary arteries in HySu-induced PAH murine model. Moreover, blocking RAGE activity with a neutralizing antibody in human PASMCs, or RAGE deficiency in mouse PASMCs exposed to hypoxia, suppressed the expression of fibrotic proteins by reducing TGF-β1 expression. RAGE reconstitution in deficient mouse PASMCs restored hypoxia-stimulated TGF-β1 production via ERK1/2 and p38 MAPK pathway activation and subsequently increased ECM protein expression. Interestingly, HMGB1 acting on RAGE, not toll-like receptor 4 (TLR4), induced ECM deposition in PASMCs. Finally, in both idiopathic PAH patients and HySu-induced PAH mice, soluble RAGE (sRAGE) levels in serum were significantly elevated compared to those in controls. Conclusions Activation of RAGE facilitates the development of hypoxia-induced pulmonary hypertension by increase of ECM deposition in pulmonary arteries. Our results indicate that sRAGE may be a potential biomarker for PAH diagnosis and disease severity, and that RAGE may be a promising target for PAH treatment.
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Affiliation(s)
- Daile Jia
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijiner Road, Shanghai 200025, China.,Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 yueyang Road, Shanghai 200031, China
| | - Yuhu He
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijiner Road, Shanghai 200025, China
| | - Qian Zhu
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijiner Road, Shanghai 200025, China.,Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 yueyang Road, Shanghai 200031, China
| | - Huan Liu
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijiner Road, Shanghai 200025, China
| | - Caojian Zuo
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijiner Road, Shanghai 200025, China
| | - Guilin Chen
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 yueyang Road, Shanghai 200031, China
| | - Ying Yu
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 yueyang Road, Shanghai 200031, China
| | - Ankang Lu
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijiner Road, Shanghai 200025, China
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22
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Gao H, Li H, Li W, Shen X, Di B. Pioglitazone Attenuates Atherosclerosis in Diabetic Mice by Inhibition of Receptor for Advanced Glycation End-Product (RAGE) Signaling. Med Sci Monit 2017; 23:6121-6131. [PMID: 29278639 PMCID: PMC5749137 DOI: 10.12659/msm.907401] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Background Peroxisome proliferator-activated receptor-γ (PPAR-γ) exhibits anti-inflammatory and anti-diabetic properties, and is protective against cardiovascular diseases. This study aimed to determine the effects of a PPAR-γ agonist pioglitazone on atherogenesis in an ApoE knockout mouse (ApoE−/−) diabetic mouse model and in a cultured vascular smooth muscle cells (VSMCs) model. Material/Methods Male ApoE−/− mice were rendered diabetic by 5 daily intraperitoneal injections of streptozotocin. Pioglitazone (20 mg/kg/d) or PPAR-γ inhibitor GW9662 (1 mg/kg/d) were administered for 12 weeks. At the end of treatment, mice were killed and the aortae were isolated. Oil Red O staining was used to evaluate atherosclerotic plaque area. H&E staining was used to evaluate the number of complicated plaques. Western blotting and immunohistochemistry were used to determine the expression of advanced glycation end-products (RAGE) and PPAR-γ. The effects of pioglitazone and GW9662 on RAGE and PPAR-γ expression were examined in cultured primary mouse VSMCs in hyperglycemic conditions. Results Administration of pioglitazone in diabetic ApoE−/− mice successfully reduced atherosclerotic plaque area and the number of complicated plaques. Moreover, pioglitazone inhibited RAGE and stimulated PPAR-γ protein expression in atherosclerotic plaques of diabetic ApoE−/− mice. In cultured VSMCs upon high-glucose challenge, pioglitazone downregulated RAGE mRNA and protein expression. Blockade of PPAR-γ activity by GW9662 remarkably attenuated the inhibitory actions of pioglitazone on atherogenesis, both in diabetic ApoE−/− mice and in cultured VSMCs, upon high-glucose challenge. Conclusions Pioglitazone has a therapeutic effect on atherosclerosis in diabetes, and inhibition of RAGE signaling plays a critical role in mediating the beneficial effects of pioglitazone.
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Affiliation(s)
- Hongli Gao
- Department of Cardiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China (mainland)
| | - Hongwei Li
- Cardiovascular Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China (mainland).,Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular Disease, Beijing, China (mainland)
| | - Weiping Li
- Cardiovascular Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China (mainland).,Beijing Key Laboratory of Metabolic Disorders Related Cardiovascular Disease, Beijing, China (mainland)
| | - Xuhua Shen
- Cardiovascular Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China (mainland)
| | - Beibing Di
- Department of Cardiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China (mainland)
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23
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Xu L, Wang YR, Li PC, Feng B. Advanced glycation end products increase lipids accumulation in macrophages through upregulation of receptor of advanced glycation end products: increasing uptake, esterification and decreasing efflux of cholesterol. Lipids Health Dis 2016; 15:161. [PMID: 27644038 PMCID: PMC5028926 DOI: 10.1186/s12944-016-0334-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 09/14/2016] [Indexed: 01/25/2023] Open
Abstract
Background Previous reports have suggested that advanced glycation end products (AGEs) participate in the pathogenesis of diabetic macroangiopathy. Our previous study have found that AGEs can increase the lipid droplets accumulation in aortas of diabetic rats, but the current understanding of the mechanisms remains incomplete by which AGEs affect lipids accumulation in macrophages and accelerate atherosclerosis. In this study, we investigated the role of AGEs on lipids accumulation in macrophages and the possible molecular mechanisms including cholesterol influx, esterification and efflux of macrophages. Methods THP-1 cells were incubated with PMA to differentiate to be macrophages which were treated with AGEs in the concentration of 300 μg/ml and 600 μg/ml with or without anti-RAGE (receptor for AGEs) antibody and then stimulated by oxidized-LDL (oxLDL) or Dil-oxLDL. Lipids accumulation was examined by oil red staining. The cholesterol uptake, esterification and efflux were detected respectively by fluorescence microscope, enzymatic assay kit and fluorescence microplate. Quantitative RT-PCR and Western blot were used to measure expression of the moleculars involved in cholesterol uptake, synthesis/esterification and efflux. Results AGEs increased lipids accumulation in macrophages in a concentration-dependent manner. 600 μg/ml AGEs obviously upregulated oxLDL uptake, increased levels of cholesterol ester in macrophages, and decreased the HDL-mediated cholesterol efflux by regulating the main molecular expression including CD36, Scavenger receptors (SR) A2, HMG-CoA reductase (HMGCR), ACAT1 and ATP-binding cassette transporter G1 (ABCG1). The changes above were inversed when the cells were pretreated with anti-RAGE antibody. Conclusions The current study suggest that AGEs can increase lipids accumulation in macrophages by regulating cholesterol uptake, esterification and efflux mainly through binding with RAGE, which provide a deep understanding of mechanisms how AGEs accelerating diabetic atherogenesis.
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Affiliation(s)
- Lei Xu
- Department of Endocriology and Metabolic Disease, East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Yi-Ru Wang
- Tongji University School of Medicine, Shanghai, 200120, China
| | - Pei-Cheng Li
- Tongji University School of Medicine, Shanghai, 200120, China
| | - Bo Feng
- Department of Endocriology and Metabolic Disease, East Hospital, Tongji University School of Medicine, Shanghai, 200120, China. .,, Ji-mo Road 150, Shanghai, 200120, China.
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24
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Long-term intake of animal flesh and risk of developing hypertension in three prospective cohort studies. J Hypertens 2016; 33:2231-8. [PMID: 26237562 DOI: 10.1097/hjh.0000000000000722] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Prospective data are scarce on the relation of red meat, seafood, and poultry consumption with hypertension risk. Although red and processed meats are generally considered to have adverse cardiovascular consequences, seafood is believed to be protective and poultry's effect is controversial. METHODS We prospectively examined the independent association of long-term intake of animal flesh with incident hypertension in three longitudinal cohort studies of nonhypertensive individuals: Nurses' Health Study (NHS, n = 62 273 women), Nurses' Health Study II (NHS II, n = 88 831 women), and Health Professionals Follow-Up Study (HPFS, n = 37 414 men). We used multivariable Cox proportional hazards regression to study the associations of different types of animal flesh with the risk of developing hypertension while controlling for other hypertension risk factors. We then used fixed-effects meta-analysis to derive pooled estimates of effect. RESULTS Compared with participants whose consumption was less than 1 serving/month, the pooled hazard ratios among those whose intake was at least 1 serving/day were 1.30 (95% confidence interval 1.23-1.39) for total meat (a combination of processed and unprocessed red meat), 1.22 (1.12-1.34) for poultry, and 1.05 (0.98-1.13) for seafood. Seafood was associated with an increased risk of hypertension in HPFS and NHS II, but not NHS. Consumption of any animal flesh at least 1 serving/day was associated with an increased hypertension risk [pooled hazard ratio = 1.30 (1.16-1.47)]. CONCLUSION Long-term intake of meat and poultry were associated with increased risk of hypertension. In contrast to our hypothesis, we found a weak but significant trend toward an increased risk of hypertension with increasing seafood consumption.
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Hatano M. Potential of Receptor for Advanced Glycation End-Products (RAGE) as an Eligible Biomarker for Therapy Evaluation in Patients With Pulmonary Hypertension. Int Heart J 2016; 57:132-3. [PMID: 26973280 DOI: 10.1536/ihj.16-073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Masaru Hatano
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
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Kang MK, Chung WB, Hong SK, Kim OR, Ihm SH, Chang K, Seung KB. Effects of candesartan cilexetil and amlodipine orotate on receptor for advanced glycation end products expression in the aortic wall of Otsuka Long-Evans Tokushima Fatty (OETFF) type 2 diabetic rats. Arch Pharm Res 2016; 39:565-576. [DOI: 10.1007/s12272-016-0728-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 02/27/2016] [Indexed: 12/20/2022]
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Feng L, Zhu MM, Bu WQ, Wang CF, Zheng ZG, Wang RS, Jia XB, Zhu Q. The C-terminal tails of 4,4'-diphenylmethane-bis(methyl) carbamate are essential for binding to receptor for advanced glycation end products to attenuate advanced glycation end products-induced inflammation and apoptosis responses in human umbilical vein endothelial cells. ACTA ACUST UNITED AC 2016; 68:93-106. [PMID: 26806697 DOI: 10.1111/jphp.12499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 11/01/2015] [Indexed: 01/05/2023]
Abstract
OBJECTIVES A novel compound 4,4'-diphenylmethane-bis(methyl) carbamate (CM1) was shown to possess preventive activity on AGEs-induced human umbilical vein endothelial cells (HUVECs) damage via binding to RAGE. However, the underlying structural basis of CM1 on binding to RAGE was not fully understood. METHODS In the present study, CM1 analogues were designed and synthesized to compare the activity differences on inhibiting AGEs-induced inflammatory response including TGF-β1, RAGE protein expression in HUVECs, and macrophages migration and adhesion to HUVECs. In addition, the cell viability and anti-apoptosis activities of CM1 analogues were also examined. KEY FINDINGS These results indicated that CM1 had higher activities on preventing AGEs-induced HUVECs damage (inflammation, cell viability and apoptosis) than other analogues. The bioaffinity assay was conducted by CMC and demonstrated that the IC50 and dissociation equilibrium constants (Kd) of CM1 were lower whereas the Bmax was higher than other analogues. The incubation of RAGE protein with CM1 analogues by equilibrium dialysis method showed CM1 had a stronger binding rate than other CM1 analogues. CONCLUSION Our findings suggested that the C-terminal tails (methoxycarbonyl groups) of CM1 were the active groups for binding to RAGE and then led to the attenuation on RAGE-mediated endothelial dysfunction.
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Affiliation(s)
- Liang Feng
- Key Laboratory of Delivery Systems of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Jiangsu, Nanjing, China.,State Key Laboratory of Quality Research in Chinese Medicine, Biotechnology Labortory of Chinese Medicine, Macau University of Science and Technology, Taipa, Macau, China
| | - Mao-mao Zhu
- Key Laboratory of Delivery Systems of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Jiangsu, Nanjing, China
| | - Wei-quan Bu
- Key Laboratory of Delivery Systems of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Jiangsu, Nanjing, China.,Jiangsu Provincial Combine Traditional Chinese and Western Medicine Hospital, Jiangsu, Nanjing, China
| | - Chun-fei Wang
- Key Laboratory of Delivery Systems of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Jiangsu, Nanjing, China
| | - Zhao-guang Zheng
- State Key Laboratory of Quality Research in Chinese Medicine, Biotechnology Labortory of Chinese Medicine, Macau University of Science and Technology, Taipa, Macau, China
| | - Ru-shang Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Biotechnology Labortory of Chinese Medicine, Macau University of Science and Technology, Taipa, Macau, China.,Institute of Conson Co. for Chinese Medicine in Kidiney Diseases and Consun Pharmaceutical Group, Guangzhou, China
| | - Xiao-bin Jia
- Key Laboratory of Delivery Systems of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Jiangsu, Nanjing, China
| | - Quan Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Biotechnology Labortory of Chinese Medicine, Macau University of Science and Technology, Taipa, Macau, China.,Institute of Conson Co. for Chinese Medicine in Kidiney Diseases and Consun Pharmaceutical Group, Guangzhou, China
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Khazaei M, Karimi J, Sheikh N, Goodarzi MT, Saidijam M, Khodadadi I, Moridi H. Effects of Resveratrol on Receptor for Advanced Glycation End Products (RAGE) Expression and Oxidative Stress in the Liver of Rats with Type 2 Diabetes. Phytother Res 2015; 30:66-71. [DOI: 10.1002/ptr.5501] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/27/2015] [Accepted: 09/29/2015] [Indexed: 01/11/2023]
Affiliation(s)
- Mohammad Khazaei
- Department of Biochemistry, School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - Jamshid Karimi
- Department of Biochemistry, School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - Nasrin Sheikh
- Department of Biochemistry, School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - Mohammad Taghi Goodarzi
- Research Center for Molecular Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - Massoud Saidijam
- Research Center for Molecular Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - Iraj Khodadadi
- Department of Biochemistry, School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
| | - Heresh Moridi
- Department of Biochemistry, School of Medicine; Hamadan University of Medical Sciences; Hamadan Iran
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Moridi H, Karimi J, Sheikh N, Goodarzi MT, Saidijam M, Yadegarazari R, Khazaei M, Khodadadi I, Tavilani H, Piri H, Asadi S, Zarei S, Rezaei A. Resveratrol-Dependent Down-regulation of Receptor for Advanced Glycation End-products and Oxidative Stress in Kidney of Rats With Diabetes. Int J Endocrinol Metab 2015; 13:e23542. [PMID: 25892997 PMCID: PMC4394675 DOI: 10.5812/ijem.23542] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 10/30/2014] [Accepted: 01/13/2015] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Millions of people in the world have diabetes mellitus and its prevalence is growing. Oxidative stress, advanced glycation end-products (AGEs) and receptor for advanced glycation end-products (RAGE) play key role in the pathogenesis of diabetes. New and safe strategies of remedy are needed for this disease. OBJECTIVES We hypothesized that resveratrol may exert a renal protective effect on diabetic rats. MATERIALS AND METHODS Male rats with diabetes were treated with or without resveratrol as 1, 5, 10 mg/kg of body weight for 30 days. The total AGEs and malondialdehyde levels in kidney tissues were determined by spectrofluorimetric method and the insulin level was assayed using ELISA. The total antioxidant capacity contents in kidney and the glucose in plasma were measured by a colorimetric assay. The expression of RAGE was assayed in kidneys of all animals using quantitative PCR. RESULTS In resveratrol-treated rats with diabetes, malondialdehyde levels, plasma glucose and expression of RAGE were significantly reduced compared with the untreated group. Moreover, the total antioxidant and insulin levels significantly increased in treated rats. There was no significant difference in the AGEs contents among all the groups. CONCLUSIONS These results revealed that resveratrol has beneficial effects on kidney by extenuating the oxidative stress and down-regulation of RAGE expression.
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Affiliation(s)
- Heresh Moridi
- Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
| | - Jamshid Karimi
- Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
- Corresponding author: Jamshid Karimi, Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran. Tel: +98-8138276293, Fax: +98-8138380208, E-mail:
| | - Nasrin Sheikh
- Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
| | - Mohammad Taghi Goodarzi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
| | - Massoud Saidijam
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
| | - Reza Yadegarazari
- Department of Molecular Medicine and Genetics, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
| | - Mohammad Khazaei
- Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
| | - Iraj Khodadadi
- Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
| | - Heidar Tavilani
- Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
| | - Hossein Piri
- Department of Biochemistry and Genetics, School of Medicine, Qazvin University of Medical Sciences, Qazvin, IR Iran
| | - Soheila Asadi
- Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
| | - Sadegh Zarei
- Department of Biochemistry, School of Medicine, Yazd University of Medical Sciences, Yazd, IR Iran
| | - Azam Rezaei
- Department of Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, IR Iran
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Abstract
In vivo modification of proteins by molecules with reactive carbonyl groups leads to intermediate and advanced glycation end products (AGE). Glucose is a significant glycation reagent due to its high physiological concentration and poorly controlled diabetics show increased albumin glycation. Increased levels of glycated and AGE-modified albumin have been linked to diabetic complications, neurodegeneration, and vascular disease. This review discusses glycated albumin formation, structural consequences of albumin glycation on drug binding, removal of circulating AGE by several scavenger receptors, as well as AGE-induced proinflammatory signaling through activation of the receptor for AGE. Analytical methods for quantitative detection of protein glycation and AGE formation are compared. Finally, the use of glycated albumin as a novel clinical marker to monitor glycemic control is discussed and compared to glycated hemoglobin (HbA1c) as long-term indicator of glycemic status.
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Ma K, Xu Y, Wang C, Li N, Li K, Zhang Y, Li X, Yang Q, Zhang H, Zhu X, Bai H, Ben J, Ding Q, Li K, Jiang Q, Xu Y, Chen Q. A cross talk between class A scavenger receptor and receptor for advanced glycation end-products contributes to diabetic retinopathy. Am J Physiol Endocrinol Metab 2014; 307:E1153-65. [PMID: 25352436 DOI: 10.1152/ajpendo.00378.2014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In response to hyperglycemia in patients with diabetes, many signaling pathways contribute to the pathogenesis of diabetic complications, including diabetic retinopathy (DR). Excessive production of inflammatory mediators plays an important role in this process. Amadori-glycated albumin, one of the major forms of advanced glycated end-products, has been implicated in DR by inducing inflammatory responses in microglia/macrophages. Our goal was to delineate the potential cross talk between class A scavenger receptor (SR-A) and the receptor for advanced glycated end-product (RAGE) in the context of DR. We show here that SR-A ablation caused an exacerbated form of DR in streptozotocin-injected C57BL/6J mice as evidenced by fundus imaging and electroretinography. Immunohistochemical staining and RT-PCR assay indicated that there was augmented activation of proinflammatory macrophages with upregulated synthesis of proinflammatory mediators in the retina in Sr-a(-/-) mice. Overexpression of SR-A suppressed RAGE-induced mitogen-activated protein kinase (MAPK) signaling, whereas RAGE activation in macrophages favored a proinflammatory (M1) phenotype in the absence of SR-A. Mechanistic analysis on bone marrow-derived macrophages and HEK293 cell line revealed that SR-A interacted with and inhibited the phosphorylation of mitogen-activated protein kinase kinase 7, the major kinase in the RAGE-MAPK-NF-κB signaling, thereby leading to diminished secretion of proinflammatory cytokines. Our findings suggest that the antagonism between SR-A and RAGE contributes to the pathogenesis of DR by nurturing a disease-prone macrophage phenotype. Therefore, specific agonist that boosts SR-A signaling could potentially provide benefits in the prevention and/or intervention of DR.
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Affiliation(s)
- Ke Ma
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Yiming Xu
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Chenchen Wang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Nan Li
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Kexue Li
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Yan Zhang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Xiaoyu Li
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Qing Yang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Hanwen Zhang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Xudong Zhu
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Hui Bai
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Jingjing Ben
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Qingqing Ding
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Keran Li
- The Affiliated Eye Hospital of Nanjing Medical University, Nanjing, China
| | - Qin Jiang
- The Affiliated Eye Hospital of Nanjing Medical University, Nanjing, China
| | - Yong Xu
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
| | - Qi Chen
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Atherosclerosis Research Center, Nanjing Medical University, Nanjing, China; and
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Teichert-Kuliszewska K, Tsoporis JN, Desjardins JF, Yin J, Wang L, Kuebler WM, Parker TG. Absence of the calcium-binding protein, S100A1, confers pulmonary hypertension in mice associated with endothelial dysfunction and apoptosis. Cardiovasc Res 2014; 105:8-19. [PMID: 25395393 DOI: 10.1093/cvr/cvu241] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
AIMS S100A1, a 10-kDa, Ca(2+)-binding protein, is expressed in endothelial cells (ECs) and binds eNOS. Its absence is associated with impaired production of nitric oxide (NO) and mild systemic hypertension. As endothelial dysfunction contributes to clinical and experimental pulmonary hypertension (PH), we investigated the impact of deleting S100A1 in mice, on pulmonary haemodynamics, endothelial function, NO production, associated signalling pathways, and apoptosis. METHODS AND RESULTS Compared with wild-type (WT), S100A1-knock-out mice (KO) exhibited increased right ventricular (RV) weight/body weight ratio and elevated RV pressure in the absence of altered left ventricular filling pressures, accompanied by increase in wall thickness of muscularized pulmonary arteries and a reduction in microvascular perfusion. In isolated lung preparations, KO revealed reduced basal NO, blunted dose-responsiveness to acetylcholine, and augmented basal and angiotensin (AII)-induced pulmonary vascular resistance (R₀) compared with WT. Pre-treatment of KO lungs with S100A1 attenuated the AII-induced increase in pulmonary arterial pressure and R₀. S100A1-induced phosphorylation of eNOS, Akt, and ERK1/2 is attenuated in pulmonary EC of KO compared with WT. Basal and TNF-α-induced EC apoptosis is greater in KO vs. WT, and cell survival is enhanced by S100A1 treatment. CONCLUSION Our data demonstrate that the absence of S100A1 results in PH by disruption of its normal capacity to (i) enhance pulmonary EC function by induction of eNOS activity and NO levels via Akt/ERK1/2 pathways and (ii) promote EC survival. The ability of exogenously administered S100A1 to rescue this phenotype makes it an attractive therapeutic target in the treatment of PH.
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Affiliation(s)
| | | | | | - Jun Yin
- Department of Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, University of Toronto, Toronto, Canada
| | - Liming Wang
- Department of Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, University of Toronto, Toronto, Canada
| | - Wolfgang M Kuebler
- Department of Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute, St Michael's Hospital, University of Toronto, Toronto, Canada
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Local and systemic RAGE axis changes in pulmonary hypertension: CTEPH and iPAH. PLoS One 2014; 9:e106440. [PMID: 25188497 PMCID: PMC4154707 DOI: 10.1371/journal.pone.0106440] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/29/2014] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE The molecular determinants of chronic thromboembolic pulmonary hypertension (CTEPH) and idiopathic pulmonary arterial hypertension (iPAH) remain poorly understood. The receptor for advanced glycation endproducts (RAGE) and its ligands: HMGB1 and S100A9 are involved in inflammatory disorders. We sought to investigate the role of the RAGE axis in patients with CTEPH undergoing pulmonary endarterectomy (PEA), iPAH undergoing lung transplantation (LuTX). The high pulmonary vascular resistance in CTEPH/iPAH results in pressure overload of the right ventricle. We compared sRAGE measurements to that of patients with aortic valve stenosis (AVS) - pressure overload of the left ventricle. METHODS We enrolled patients with CTEPH(26), iPAH(15), AVS(15) and volunteers(33). Immunohistochemistry with antibodies to RAGE and HMGB1 was performed on PEA specimens and lung tissues. We employed enzyme-linked immunosorbent assays to determine the concentrations of sRAGE, esRAGE, HMGB1 and S100A9 in serum of volunteers and patients with CTEPH, iPAH, AVS before and after PEA, LuTX and aortic valve replacement (AVR). RESULTS In endarterectomised tissues from patients with CTEPH RAGE and HMGB1 were identified in myofibroblasts (α-SMA+vimentin+CD34-), recanalizing vessel-like structures of distal myofibrotic tissues and endothelium of neointima. RAGE was differentially expressed in prototypical Heath Edwards lesions in iPAH. We found significantly increased serum concentrations of sRAGE, esRAGE and HMGB1 in CTEPH. In iPAH, sRAGE and esRAGE were significantly higher than in controls. Serum concentrations of sRAGE were significantly elevated in iPAH(p<0.001) and CTEPH(p = 0.001) compared to AVS. Serum sRAGE was significantly higher in iPAH compared to CTEPH(p = 0.042) and significantly reduced in AVS compared to controls(p = 0.001). There were no significant differences in sRAGE serum concentrations before and after surgical therapy for CTEPH, iPAH or AVS. CONCLUSIONS Our data suggest a role for the RAGE pathway in the pathophysiology of CTEPH and iPAH. PEA improves the local control of disease but may not influence the systemic inflammatory mechanisms in CTEPH patients through the RAGE pathway.
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Tardif K, Hertig V, Dumais C, Villeneuve L, Perrault L, Tanguay JF, Calderone A. Nestin downregulation in rat vascular smooth muscle cells represents an early marker of vascular disease in experimental type I diabetes. Cardiovasc Diabetol 2014; 13:119. [PMID: 25139503 PMCID: PMC4143548 DOI: 10.1186/s12933-014-0119-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 07/23/2014] [Indexed: 01/28/2023] Open
Abstract
Background Nestin was reported to directly contribute to cell proliferation and the intermediate filament protein was detected in vascular smooth muscle cells. In experimental type I diabetes, nestin downregulation in the heart was identified as an incipient pathophysiological event. The following study tested the hypothesis that dysregulation of nestin expression in vascular smooth muscle cells represented an early event of vascular disease in experimental type I diabetes. Methods/Results In the carotid artery and aorta of adult male Sprague-Dawley rats, a subpopulation of vascular smooth muscle cells co-expressed nestin and was actively involved in the cell cycle as reflected by the co-staining of nuclear phosphohistone-3. The infection of aortic vascular smooth muscle cells with a lentivirus containing a shRNAmir directed against nestin significantly reduced protein expression and concomitantly attenuated basal DNA synthesis. Two weeks following injection of adult male Sprague-Dawley rats with streptozotocin, the endothelial response of aortic rings to acetylcholine, vascular morphology and the total density of vascular smooth muscle cells in the vasculature of type I diabetic rats were similar to normal rats. By contrast, nestin protein levels and the density of nestin(+)/phosphohistone-3(+)-vascular smooth muscle cells were significantly reduced in type I diabetic rats. The in vivo observations were recapitulated in vitro as exposure of vascular smooth muscle cells to 30 mM D-glucose inhibited DNA synthesis and concomitantly reduced nestin protein expression. Conclusions Hyperglycaemia-mediated nestin downregulation and the concomitant reduction of cycling vascular smooth muscle cells represent early markers of vascular disease in experimental type I diabetes. Electronic supplementary material The online version of this article (doi:10.1186/s12933-014-0119-6) contains supplementary material, which is available to authorized users.
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Guo R, Li W, Liu B, Li S, Zhang B, Xu Y. Resveratrol protects vascular smooth muscle cells against high glucose-induced oxidative stress and cell proliferation in vitro. Med Sci Monit Basic Res 2014; 20:82-92. [PMID: 24971582 PMCID: PMC4095779 DOI: 10.12659/msmbr.890858] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Resveratrol exhibits beneficial effects against numerous degenerative diseases at different stages of pathogenesis. This study investigated potential mechanisms and resveratrol effects on high glucose (HG)-induced oxidative stress (30 mM d-glucose, 30 min) and cell proliferation (30 mM d-glucose, 24 h) in vascular smooth muscle cells (VSMCs). Material/Methods Intracellular reactive oxygen species (ROS) generation was detected by 2′,7′-dichlorofluorescein diacetate (DCFH-DA). Total antioxidant capacity (TAC), malonyldialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD) were measured to evaluate oxidative stress. VSMC proliferation was measured by CCK-8 assays and through propidium iodide-based cell cycle analysis. Expression of NAD(P)H oxidase, proliferation proteins, and cell signalling were assessed by immunoblot analysis. Results Co-treatment of primary cultures of VSMCs with 1–100 μM resveratrol decreased HG-induced ROS overproduction (P<0.05). Resveratrol also abolished HG-induced phosphorylation of oxidase subunit p47 phox and reduced HG-induced cyclin D1, cyclin E, and PCNA expression in a concentration-dependent manner. Furthermore, resveratrol (10 μM) attenuated HG-induced phosphorylation of Akt, p38 mitogen-activated protein kinase (MAPK), ERK 1/2, and JNK1/2 without affecting total levels. HG stimulation enhanced downstream IκB-α phosphorylation and NF-κB activity, and resveratrol repressed these effects. Conclusions Resveratrol inhibits HG-induced oxidative stress and VSMC proliferation by suppressing ROS generation, NADPH oxidase, Akt phosphorylation, p38 MAPK/JNK/ERK phosphorylation, and IκB-α and NF-κB activities.
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Affiliation(s)
- Rong Guo
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (mainland)
| | - Weiming Li
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (mainland)
| | - Baoxin Liu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (mainland)
| | - Shuang Li
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (mainland)
| | - Buchun Zhang
- Department of Cardiology, Affiliated Hospital of Xuzhou Medical College, Xuzhou, China (mainland)
| | - Yawei Xu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China (mainland)
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Eun SY, Park SW, Lee JH, Chang KC, Kim HJ. P2Y(2)R activation by nucleotides released from oxLDL-treated endothelial cells (ECs) mediates the interaction between ECs and immune cells through RAGE expression and reactive oxygen species production. Free Radic Biol Med 2014; 69:157-66. [PMID: 24486339 DOI: 10.1016/j.freeradbiomed.2014.01.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 01/14/2014] [Accepted: 01/20/2014] [Indexed: 10/25/2022]
Abstract
Lipoprotein oxidation, inflammation, and immune responses involving the vascular endothelium and immune cells contribute to the pathogenesis of atherosclerosis. In an atherosclerotic animal model, P2Y2 receptor (P2Y2R) upregulation and stimulation were previously shown to induce intimal hyperplasia and increased intimal monocyte infiltration. Thus, we investigated the role of P2Y2R in oxidized low-density lipoprotein (oxLDL)-mediated oxidative stress and the subsequent interaction between endothelial cells (ECs) and immune cells. The treatment of human ECs with oxLDL caused the rapid release of ATP (maximum after 5 min). ECs treated with oxLDL or the P2Y2R agonists ATP/UTP for 1h exhibited significant reactive oxygen species (ROS) production, but this effect was not observed in P2Y2R siRNA-transfected ECs. In addition, oxLDL and ATP/UTP both induced RAGE expression, which was P2Y2R dependent. Oxidized LDL- and ATP/UTP-mediated ROS production was diminished in RAGE siRNA-transfected ECs, suggesting that RAGE is an important mediator in P2Y2R-mediated ROS production. Treatment with oxLDL for 24h induced P2Y2R expression in the human monocyte cell line THP-1 and increased THP-1 cell migration toward ECs. The addition of apyrase, an enzyme that hydrolyzes nucleotides, or diphenyleneiodonium (DPI), a well-known inhibitor of NADPH oxidase, significantly inhibited the increase in cell migration caused by oxLDL. P2Y2R siRNA-transfected THP-1 cells did not migrate in response to oxLDL or ATP/UTP treatment, indicating a critical role for P2Y2R and nucleotide release in oxLDL-induced monocyte migration. Last, oxLDL and ATP/UTP effectively increased ICAM-1 and VCAM-1 expression and the subsequent binding of THP-1 cells to ECs, which was inhibited by pretreatment with DPI or by siRNA against P2Y2R or RAGE, suggesting that P2Y2R is an important mediator in oxLDL-mediated monocyte adhesion to ECs through the regulation of ROS-dependent adhesion molecule expression in ECs. Taken together, our findings suggest that P2Y2R could be a therapeutic target for the prevention of vascular disorders, including atherosclerosis.
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Affiliation(s)
- So Young Eun
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 660-701, Korea
| | - Sang Won Park
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 660-701, Korea
| | - Jae Heun Lee
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 660-701, Korea
| | - Ki Churl Chang
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 660-701, Korea
| | - Hye Jung Kim
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju 660-701, Korea.
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The diabetic vasculature: physiological mechanisms of dysfunction and influence of aerobic exercise training in animal models. Life Sci 2014; 102:1-9. [PMID: 24583313 DOI: 10.1016/j.lfs.2014.02.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/30/2014] [Accepted: 02/15/2014] [Indexed: 02/08/2023]
Abstract
Diabetes mellitus (DM) is associated with a number of complications of which chronic vascular complications are undoubtedly the most complex and significant consequence. With a significant impact on health care, 50-80% of people with diabetes die of cardiovascular disease (including coronary artery disease, stroke, peripheral vascular disease and other vascular disease), making it the major cause of morbidity and mortality in diabetic patients. A healthy lifestyle is essential in the management of DM, especially the inclusion of aerobic exercise, which has been shown effective in reducing the deleterious effects in vasculature. Interest in exercise studies has increased significantly with promising results that demonstrate a future for investigation. Considering the importance of this emerging field, the aim of this mini-review is to summarize and integrate animal studies investigating physiological mechanisms of vascular dysfunction and remodeling in type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM) and how these are influenced by chronic aerobic exercise training.
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Matsumoto T, Lopes RAM, Taguchi K, Kobayashi T, Tostes RC. Linking the beneficial effects of current therapeutic approaches in diabetes to the vascular endothelin system. Life Sci 2014; 118:129-35. [PMID: 24418002 DOI: 10.1016/j.lfs.2013.12.216] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 12/04/2013] [Accepted: 12/24/2013] [Indexed: 12/19/2022]
Abstract
The rising epidemic of diabetes worldwide is of significant concern. Although the ultimate objective is to prevent the development and find a cure for the disease, prevention and treatment of diabetic complications is very important. Vascular complications in diabetes, or diabetic vasculopathy, include macro- and microvascular dysfunction and represent the principal cause of morbidity and mortality in diabetic patients. Endothelial dysfunction plays a pivotal role in the development and progression of diabetic vasculopathy. Endothelin-1 (ET-1), an endothelial cell-derived peptide, is a potent vasoconstrictor with mitogenic, pro-oxidative and pro-inflammatory properties that are particularly relevant to the pathophysiology of diabetic vasculopathy. Overproduction of ET-1 is reported in patients and animal models of diabetes and the functional effects of ET-1 and its receptors are also greatly altered in diabetic conditions. The current therapeutic approaches in diabetes include glucose lowering, sensitization to insulin, reduction of fatty acids and vasculoprotective therapies. However, whether and how these therapeutic approaches affect the ET-1 system remain poorly understood. Accordingly, in the present review, we will focus on experimental and clinical evidence that indicates a role for ET-1 in diabetic vasculopathy and on the effects of current therapeutic approaches in diabetes on the vascular ET-1 system.
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Affiliation(s)
- Takayuki Matsumoto
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Rheure A M Lopes
- Department of Pharmacology, Medical School of Ribeirao Preto, University of Sao Paulo, Av Bandeirantes 3900, Ribeirao Preto, SP 14049-900, Brazil
| | - Kumiko Taguchi
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Tsuneo Kobayashi
- Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Rita C Tostes
- Department of Pharmacology, Medical School of Ribeirao Preto, University of Sao Paulo, Av Bandeirantes 3900, Ribeirao Preto, SP 14049-900, Brazil
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39
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Chung TW, Choi HJ, Kim CH, Jeong HS, Ha KT. Lipocalin-2 elicited by advanced glycation end-products promotes the migration of vascular smooth muscle cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:3386-3395. [PMID: 24149112 DOI: 10.1016/j.bbamcr.2013.10.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 10/11/2013] [Accepted: 10/14/2013] [Indexed: 12/11/2022]
Abstract
Advanced glycation end-products (AGEs) play key roles in the development of diabetic vascular complications by activating the proliferation and migration of vascular smooth muscle cells. Here, we identified an increase of the migratory properties of human aortic smooth muscle cells (HASMC) through AGE-induced expression of lipocalin-2 (LCN2). Because the AGE-elicited expression of LCN2 was diminished by an antibody against the AGE receptor (RAGE), diphenylene iodonium (DPI), N-acetyl cysteine, LY294002, and SP600125, we suggest that AGEs enhance the expression of LCN2 via a RAGE-NADPH oxidase-reactive oxygen species pathway, leading to the phosphorylation of PI3K-Akt and JNK in HASMCs. In addition, a chromatin immunoprecipitation assay and promoter assay revealed that CCAAT/enhancer binding protein β is crucial for AGE-induced expression of LCN2. However, any other AGE-related signaling pathway, including ERK1/2, p38, NF-κB, and AP-1, did not affect the AGE- induced expression of LCN2. Knockdown of LCN2 expression by shRNA showed that AGE-elicited LCN2 expression enhanced the invasive and migratory properties of HASMCs, but showed no effect on cell proliferation. Considering the importance of HASMC migration in the development of atherosclerosis, our study provides a novel insight into diabetic vascular complications.
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MESH Headings
- Acute-Phase Proteins/genetics
- Acute-Phase Proteins/metabolism
- Base Sequence
- CCAAT-Enhancer-Binding Protein-beta/metabolism
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Chromatin Immunoprecipitation
- Gene Knockdown Techniques
- Glycation End Products, Advanced/pharmacology
- Humans
- JNK Mitogen-Activated Protein Kinases/metabolism
- Lipocalin-2
- Lipocalins/genetics
- Lipocalins/metabolism
- Models, Biological
- Molecular Sequence Data
- Muscle, Smooth, Vascular/cytology
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Phosphatidylinositol 3-Kinases/metabolism
- Promoter Regions, Genetic/genetics
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- Proto-Oncogene Proteins c-akt/metabolism
- RNA, Small Interfering/metabolism
- Reactive Oxygen Species/metabolism
- Receptor for Advanced Glycation End Products
- Receptors, Immunologic/metabolism
- Signal Transduction/drug effects
- Transcriptional Activation/drug effects
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Affiliation(s)
- Tae-Wook Chung
- Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan, Gyeongsangnam-do 626-870, Republic of Korea; Department of Molecular and Cellular Glycobiology, College of Natural Science, Sungkyunkwan University, Suwon, Kyungki-do 440-746, Republic of Korea
| | - Hee-Jung Choi
- Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan, Gyeongsangnam-do 626-870, Republic of Korea
| | - Cheorl-Ho Kim
- Department of Molecular and Cellular Glycobiology, College of Natural Science, Sungkyunkwan University, Suwon, Kyungki-do 440-746, Republic of Korea
| | - Han-Sol Jeong
- Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan, Gyeongsangnam-do 626-870, Republic of Korea
| | - Ki-Tae Ha
- Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan, Gyeongsangnam-do 626-870, Republic of Korea.
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40
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Receptor for advanced glycation end products (RAGE) in vascular and inflammatory diseases. Int J Cardiol 2013; 168:1788-94. [DOI: 10.1016/j.ijcard.2013.05.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Accepted: 05/04/2013] [Indexed: 02/06/2023]
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41
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von Gise A, Archer SL, Maclean MR, Hansmann G. The first Keystone Symposia Conference on pulmonary vascular isease and right ventricular dysfunction: Current concepts and future therapies. Pulm Circ 2013; 3:275-7. [PMID: 24015328 PMCID: PMC3757822 DOI: 10.4103/2045-8932.114751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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42
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Aldini G, Vistoli G, Stefek M, Chondrogianni N, Grune T, Sereikaite J, Sadowska-Bartosz I, Bartosz G. Molecular strategies to prevent, inhibit, and degrade advanced glycoxidation and advanced lipoxidation end products. Free Radic Res 2013; 47 Suppl 1:93-137. [PMID: 23560617 DOI: 10.3109/10715762.2013.792926] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The advanced glycoxidation end products (AGEs) and lipoxidation end products (ALEs) contribute to the development of diabetic complications and of other pathologies. The review discusses the possibilities of counteracting the formation and stimulating the degradation of these species by pharmaceuticals and natural compounds. The review discusses inhibitors of ALE and AGE formation, cross-link breakers, ALE/AGE elimination by enzymes and proteolytic systems, receptors for advanced glycation end products (RAGEs) and blockade of the ligand-RAGE axis.
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Affiliation(s)
- Giancarlo Aldini
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
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43
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Malenfant S, Neyron AS, Paulin R, Potus F, Meloche J, Provencher S, Bonnet S. Signal transduction in the development of pulmonary arterial hypertension. Pulm Circ 2013; 3:278-93. [PMID: 24015329 PMCID: PMC3757823 DOI: 10.4103/2045-8932.114752] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a unique disease. Properly speaking, it is not a disease of the lung. It can be seen more as a microvascular disease occurring mainly in the lungs and affecting the heart. At the cellular level, the PAH paradigm is characterized by inflammation, vascular tone imbalance, pulmonary arterial smooth muscle cell proliferation and resistance to apoptosis and the presence of in situ thrombosis. At a clinical level, the aforementioned abnormal vascular properties alter physically the pulmonary circulation and ventilation, which greatly influence the right ventricle function as it highly correlates with disease severity. Consequently, right heart failure remains the principal cause of death within this cohort of patients. While current treatment modestly improve patients' conditions, none of them are curative and, as of today, new therapies are lacking. However, the future holds potential new therapies that might have positive influence on the quality of life of the patient. This article will first review the clinical presentation of the disease and the different molecular pathways implicated in the pathobiology of PAH. The second part will review tomorrow's future putative therapies for PAH.
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Affiliation(s)
- Simon Malenfant
- Pulmonary Hypertension Research Group of the Institut universitaire de cardiologie et de pneumologie de Quebec Research Center, Laval University, Quebec City, Canada
| | - Anne-Sophie Neyron
- Pulmonary Hypertension Research Group of the Institut universitaire de cardiologie et de pneumologie de Quebec Research Center, Laval University, Quebec City, Canada
| | - Roxane Paulin
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - François Potus
- Pulmonary Hypertension Research Group of the Institut universitaire de cardiologie et de pneumologie de Quebec Research Center, Laval University, Quebec City, Canada
| | - Jolyane Meloche
- Pulmonary Hypertension Research Group of the Institut universitaire de cardiologie et de pneumologie de Quebec Research Center, Laval University, Quebec City, Canada
| | - Steeve Provencher
- Pulmonary Hypertension Research Group of the Institut universitaire de cardiologie et de pneumologie de Quebec Research Center, Laval University, Quebec City, Canada
| | - Sébastien Bonnet
- Pulmonary Hypertension Research Group of the Institut universitaire de cardiologie et de pneumologie de Quebec Research Center, Laval University, Quebec City, Canada
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44
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Naser N, Januszewski AS, Brown BE, Jenkins AJ, Hill MA, Murphy TV. Advanced glycation end products acutely impair ca(2+) signaling in bovine aortic endothelial cells. Front Physiol 2013; 4:38. [PMID: 23483845 PMCID: PMC3593230 DOI: 10.3389/fphys.2013.00038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 02/13/2013] [Indexed: 01/16/2023] Open
Abstract
Post-translational modification of proteins in diabetes, including formation of advanced glycation end products (AGEs) are believed to contribute to vascular dysfunction and disease. Impaired function of the endothelium is an early indicator of vascular dysfunction in diabetes and as many endothelial cell processes are dependent upon intracellular [Ca2+] and Ca2+ signaling, the aim of this study was to examine the acute effects of AGEs on Ca2+ signaling in bovine aortic endothelial cells (BAEC). Ca2+ signaling was studied using the fluorescent indicator dye Fura-2-AM. AGEs were generated by incubating bovine serum albumin with 0–250 mM glucose or glucose-6-phosphate for 0–120 days at 37°C. Under all conditions, the main AGE species generated was carboxymethyl lysine (CML) as assayed using both gas-liquid chromatograph-mass spectroscopy and high-performance liquid chromatography. In Ca2+-replete solution, exposure of BAEC to AGEs for 5 min caused an elevation in basal [Ca2+] and attenuated the increase in intracellular [Ca2+] caused by ATP (100 μM). In the absence of extracellular Ca2+, exposure of BAEC to AGEs for 5 min caused an elevation in basal [Ca2+] and attenuated subsequent intracellular Ca2+ release caused by ATP, thapsigargin (0.1 μM), and ionomycin (3 μM), but AGEs did not affect extracellular Ca2+ entry induced by the re-addition of Ca2+ to the bathing solution in the presence of any of these agents. The anti-oxidant α-lipoic acid (2 μM) and NAD(P)H oxidase inhibitors apocynin (500 μM) and diphenyleneiodonium (1 μM) abolished these effects of AGEs on BAECs, as did the IP3 receptor antagonist xestospongin C (1 μM). In summary, AGEs caused an acute depletion of Ca2+ from the intracellular store in BAECs, such that the Ca2+ signal stimulated by the subsequent application other agents acting upon this store is reduced. The mechanism may involve generation of reactive oxygen species from NAD(P)H oxidase and possible activation of the IP3 receptor.
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Affiliation(s)
- Nadim Naser
- Department of Physiology, School of Medical Sciences, University of New South Wales Sydney, NSW, Australia
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45
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Shimizu F, Sano Y, Tominaga O, Maeda T, Abe MA, Kanda T. Advanced glycation end-products disrupt the blood-brain barrier by stimulating the release of transforming growth factor-β by pericytes and vascular endothelial growth factor and matrix metalloproteinase-2 by endothelial cells in vitro. Neurobiol Aging 2013; 34:1902-12. [PMID: 23428182 DOI: 10.1016/j.neurobiolaging.2013.01.012] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 01/14/2013] [Accepted: 01/20/2013] [Indexed: 01/31/2023]
Abstract
Diabetic encephalopathy is now accepted as an important complication of diabetes. The breakdown of the blood-brain barrier (BBB) is associated with dementia in patients with type 2 diabetes mellitus (T2DM). The purpose of this study was to identify the possible mechanisms responsible for the disruption of the BBB after exposure to advanced glycation end-products (AGEs). We investigated the effect of AGEs on the basement membrane and the barrier property of the BBB by Western blot analysis, using our newly established lines of human brain microvascular endothelial cell (BMEC), pericytes, and astrocytes. AGEs reduced the expression of claudin-5 in BMECs by increasing the autocrine signaling through vascular endothelial growth factor (VEGF) and matrix metalloproteinase-2 (MMP-2) secreted by the BMECs themselves. Furthermore, AGEs increased the amount of fibronectin in the pericytes through a similar up-regulation of the autocrine transforming growth factor (TGF)-β released by pericytes. These results indicated that AGEs induce basement membrane hypertrophy of the BBB by increasing the degree of autocrine TGF-β signaling by pericytes, and thereby disrupt the BBB through the up-regulation of VEGF and MMP-2 in BMECs under diabetic conditions.
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Affiliation(s)
- Fumitaka Shimizu
- Department of Neurology and Clinical Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
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46
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Abstract
Genetically modified mouse models have unparalleled power to determine the mechanisms behind different processes involved in the molecular and physiologic etiology of various classes of human pulmonary hypertension (PH). Processes known to be involved in PH for which there are extensive mouse models available include the following: (1) Regulation of vascular tone through secreted vasoactive factors; (2) regulation of vascular tone through potassium and calcium channels; (3) regulation of vascular remodeling through alteration in metabolic processes, either through alteration in substrate usage or through circulating factors; (4) spontaneous vascular remodeling either before or after development of elevated pulmonary pressures; and (5) models in which changes in tone and remodeling are primarily driven by inflammation. PH development in mice is of necessity faster and with different physiologic ramifications than found in human disease, and so mice make poor models of natural history of PH. However, transgenic mouse models are a perfect tool for studying the processes involved in pulmonary vascular function and disease, and can effectively be used to test interventions designed against particular molecular pathways and processes involved in disease.
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Affiliation(s)
- Mita Das
- Department of Internal Medicine, University of Arkansas Medical Sciences, Little Rock, Arkansas, USA
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47
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Meloche J, Courchesne A, Barrier M, Carter S, Bisserier M, Paulin R, Lauzon-Joset JF, Breuils-Bonnet S, Tremblay É, Biardel S, Racine C, Courture C, Bonnet P, Majka SM, Deshaies Y, Picard F, Provencher S, Bonnet S. Critical role for the advanced glycation end-products receptor in pulmonary arterial hypertension etiology. J Am Heart Assoc 2013; 2:e005157. [PMID: 23525442 PMCID: PMC3603259 DOI: 10.1161/jaha.112.005157] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background Pulmonary arterial hypertension (PAH) is a vasculopathy characterized by enhanced pulmonary artery smooth muscle cell (PASMC) proliferation and suppressed apoptosis. This results in both increase in pulmonary arterial pressure and pulmonary vascular resistance. Recent studies have shown the implication of the signal transducer and activator of transcription 3 (STAT3)/bone morphogenetic protein receptor 2 (BMPR2)/peroxisome proliferator‐activated receptor gamma (PPARγ) in PAH. STAT3 activation induces BMPR2 downregulation, decreasing PPARγ, which both contribute to the proproliferative and antiapoptotic phenotype seen in PAH. In chondrocytes, activation of this axis has been attributed to the advanced glycation end‐products receptor (RAGE). As RAGE is one of the most upregulated proteins in PAH patients' lungs and a strong STAT3 activator, we hypothesized that by activating STAT3, RAGE induces BMPR2 and PPARγ downregulation, promoting PAH‐PASMC proliferation and resistance to apoptosis. Methods and Results In vitro, using PASMCs isolated from PAH and healthy patients, we demonstrated that RAGE is overexpressed in PAH‐PASMC (6‐fold increase), thus inducing STAT3 activation (from 10% to 40% positive cells) and decrease in BMPR2 and PPARγ levels (>50% decrease). Pharmacological activation of RAGE in control cells by S100A4 recapitulates the PAH phenotype (increasing RAGE by 6‐fold, thus activating STAT3 and decreasing BMPR2 and PPARγ). In both conditions, this phenotype is totally reversed on RAGE inhibition. In vivo, RAGE inhibition in monocrotaline‐ and Sugen‐induced PAH demonstrates therapeutic effects characterized by PA pressure and right ventricular hypertrophy decrease (control rats have an mPAP around 15 mm Hg, PAH rats have an mPAP >40 mm Hg, and with RAGE inhibition, mPAP decreases to 20 and 28 mm Hg, respectively, in MCT and Sugen models). This was associated with significant improvement in lung perfusion and vascular remodeling due to decrease in proliferation (>50% decrease) and BMPR2/PPARγ axis restoration (increased by ≥60%). Conclusion We have demonstrated the implications of RAGE in PAH etiology. Thus, RAGE constitutes a new attractive therapeutic target for PAH.
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Affiliation(s)
- Jolyane Meloche
- Pulmonary Hypertension Group of the Institut universitaire de cardiologie et de pneumologie de Québec, Laval University, Quebec City, Canada
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48
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Veith C, Schmitt S, Veit F, Dahal BK, Wilhelm J, Klepetko W, Marta G, Seeger W, Schermuly RT, Grimminger F, Ghofrani HA, Fink L, Weissmann N, Kwapiszewska G. Cofilin, a hypoxia-regulated protein in murine lungs identified by 2DE: Role of the cytoskeletal protein cofilin in pulmonary hypertension. Proteomics 2013; 13:75-88. [DOI: 10.1002/pmic.201200206] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 10/08/2012] [Accepted: 10/29/2012] [Indexed: 01/18/2023]
Affiliation(s)
- Christine Veith
- Universities of Giessen and Marburg Lung Center (UGMLC); Giessen Germany
| | - Sigrid Schmitt
- Department of Biochemistry; University of Giessen; Giessen Germany
| | - Florian Veit
- Universities of Giessen and Marburg Lung Center (UGMLC); Giessen Germany
| | - Bhola Kumar Dahal
- Universities of Giessen and Marburg Lung Center (UGMLC); Giessen Germany
| | - Jochen Wilhelm
- Universities of Giessen and Marburg Lung Center (UGMLC); Giessen Germany
| | - Walter Klepetko
- Department of Cardiac Surgery; University of Vienna; Vienna Austria
| | - Gabriel Marta
- Department of Cardiac Surgery; University of Vienna; Vienna Austria
| | - Werner Seeger
- Universities of Giessen and Marburg Lung Center (UGMLC); Giessen Germany
| | | | | | | | - Ludger Fink
- Universities of Giessen and Marburg Lung Center (UGMLC); Giessen Germany
| | - Norbert Weissmann
- Universities of Giessen and Marburg Lung Center (UGMLC); Giessen Germany
| | - Grazyna Kwapiszewska
- Universities of Giessen and Marburg Lung Center (UGMLC); Giessen Germany
- Ludwig Boltzmann Institute for Lung Vascular Research; Graz Austria
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Delbin MA, Davel APC, Couto GK, de Araújo GG, Rossoni LV, Antunes E, Zanesco A. Interaction between advanced glycation end products formation and vascular responses in femoral and coronary arteries from exercised diabetic rats. PLoS One 2012; 7:e53318. [PMID: 23285277 PMCID: PMC3532341 DOI: 10.1371/journal.pone.0053318] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 11/29/2012] [Indexed: 01/28/2023] Open
Abstract
Background The majority of studies have investigated the effect of exercise training (TR) on vascular responses in diabetic animals (DB), but none evaluated nitric oxide (NO) and advanced glycation end products (AGEs) formation associated with oxidant and antioxidant activities in femoral and coronary arteries from trained diabetic rats. Our hypothesis was that 8-week TR would alter AGEs levels in type 1 diabetic rats ameliorating vascular responsiveness. Methodology/Principal Findings Male Wistar rats were divided into control sedentary (C/SD), sedentary diabetic (SD/DB), and trained diabetic (TR/DB). DB was induced by streptozotocin (i.p.: 60 mg/kg). TR was performed for 60 min per day, 5 days/week, during 8 weeks. Concentration-response curves to acetylcholine (ACh), sodium nitroprusside (SNP), phenylephrine (PHE) and tromboxane analog (U46619) were obtained. The protein expressions of eNOS, receptor for AGEs (RAGE), Cu/Zn-SOD and Mn-SOD were analyzed. Tissues NO production and reactive oxygen species (ROS) generation were evaluated. Plasma nitrate/nitrite (NOx−), superoxide dismutase (SOD), catalase (CAT), thiobarbituric acid reactive substances (TBARS) and Nε-(carboxymethyl) lysine (CML, AGE biomarker). A rightward shift in the concentration-response curves to ACh was observed in femoral and coronary arteries from SD/DB that was accompanied by an increase in TBARS and CML levels. Decreased in the eNOS expression, tissues NO production and NOx− levels were associated with increased ROS generation. A positive interaction between the beneficial effect of TR on the relaxing responses to ACh and the reduction in TBARS and CML levels were observed without changing in antioxidant activities. The eNOS protein expression, tissues NO production and ROS generation were fully re-established in TR/DB, but plasma NOx− levels were partially restored. Conclusion Shear stress induced by TR fully restores the eNOS/NO pathway in both preparations from non-treated diabetic rats, however, a massive production of AGEs still affecting relaxing responses possibly involving other endothelium-dependent vasodilator agents, mainly in coronary artery.
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MESH Headings
- Animals
- Antioxidants/metabolism
- Antioxidants/pharmacology
- Coronary Vessels/drug effects
- Coronary Vessels/metabolism
- Coronary Vessels/physiopathology
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/physiopathology
- Diabetes Mellitus, Experimental/therapy
- Dose-Response Relationship, Drug
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/physiopathology
- Endothelium-Dependent Relaxing Factors/metabolism
- Endothelium-Dependent Relaxing Factors/pharmacology
- Femoral Artery/drug effects
- Femoral Artery/metabolism
- Femoral Artery/physiopathology
- Glycation End Products, Advanced/metabolism
- Glycation End Products, Advanced/pharmacology
- Male
- Physical Conditioning, Animal
- Rats
- Rats, Wistar
- Reactive Oxygen Species/metabolism
- Reactive Oxygen Species/pharmacology
- Streptozocin
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Affiliation(s)
- Maria A. Delbin
- Department of Physical Education, Institute of Bioscience, University of São Paulo State (UNESP), Rio Claro, São Paulo, Brazil
| | - Ana Paula C. Davel
- Department of Anatomy, Cellular Biology, Physiology and Biophysics, Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Gisele Kruger Couto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Gustavo G. de Araújo
- Department of Physical Education, Institute of Bioscience, University of São Paulo State (UNESP), Rio Claro, São Paulo, Brazil
| | - Luciana Venturini Rossoni
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, São Paulo, Brazil
| | - Edson Antunes
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Angelina Zanesco
- Department of Physical Education, Institute of Bioscience, University of São Paulo State (UNESP), Rio Claro, São Paulo, Brazil
- * E-mail:
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50
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Vascular disease in diabetic women: Why do they miss the female protection? EXPERIMENTAL DIABETES RESEARCH 2012; 2012:570598. [PMID: 22973304 PMCID: PMC3438753 DOI: 10.1155/2012/570598] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Accepted: 08/02/2012] [Indexed: 02/06/2023]
Abstract
Gender plays a pivotal role in the onset as well as in the progression of the cardiovascular disease with a higher morbidity and mortality being detected in men with respect to women. Type 2 Diabetes Mellitus (T2DM) may reduce gender-related differences in the prevalence of cardiovascular disease by fading the vascular protective effects afforded by estrogen in females. This article will discuss the role of sex and sex hormones on the incidence and mechanisms involved in vascular dysfunction associated to T2DM, which might explain why women with T2DM lack the vascular protection.
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