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Wang S, Wang X, Chen J, Wang M, Zhang C. Identification of key genes and biological pathways associated with vascular aging in diabetes based on bioinformatics and machine learning. Aging (Albany NY) 2024; 16:9369-9385. [PMID: 38809515 PMCID: PMC11210242 DOI: 10.18632/aging.205870] [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: 12/19/2023] [Accepted: 04/09/2024] [Indexed: 05/30/2024]
Abstract
Vascular aging exacerbates diabetes-associated vascular damage, a major cause of microvascular and macrovascular complications. This study aimed to elucidate key genes and pathways underlying vascular aging in diabetes using integrated bioinformatics and machine learning approaches. Gene expression datasets related to vascular smooth muscle cell (VSMC) senescence and diabetic vascular aging were analyzed. Differential expression analysis identified 428 genes associated with VSMC senescence. Functional enrichment revealed their involvement in cellular senescence, ECM-receptor interaction, PI3K-Akt and AGE-RAGE signaling pathways. Further analysis of diabetic vascular aging datasets revealed 52 differentially expressed genes, enriched in AMPK signaling, AGE-RAGE signaling, cellular senescence, and VEGF signaling pathways. Machine learning algorithms, including LASSO regression and SVM-RFE, pinpointed six key genes: TFB1M, FOXRED2, LY75, DALRD3, PI4K2B, and NDOR1. Immune cell infiltration analysis demonstrated correlations between diabetic vascular aging, the identified key genes, and infiltration levels of plasma cells, M1 macrophages, CD8+ T cells, eosinophils, and regulatory T cells. In conclusion, this study identified six pivotal genes (TFB1M, FOXRED2, LY75, DALRD3, PI4K2B, and NDOR1) closely associated with diabetic vascular aging through integrative bioinformatics and machine learning approaches. These genes are linked to alterations in the immune microenvironment during diabetic vascular aging. This study provides a reference and basis for molecular mechanism research, biomarker mining, and diagnosis and treatment evaluation of diabetes-related vascular aging.
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Affiliation(s)
- Sha Wang
- Department of Endocrinology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Xia Wang
- Department of Endocrinology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Jing Chen
- Department of Endocrinology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Min Wang
- Department of Endocrinology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Chi Zhang
- Department of Endocrinology, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
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Khan K, Yu B, Tardif JC, Rhéaume E, Al-Kindi H, Filimon S, Pop C, Genest J, Cecere R, Schwertani A. Significance of the Wnt signaling pathway in coronary artery atherosclerosis. Front Cardiovasc Med 2024; 11:1360380. [PMID: 38586172 PMCID: PMC10995361 DOI: 10.3389/fcvm.2024.1360380] [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: 12/22/2023] [Accepted: 02/19/2024] [Indexed: 04/09/2024] Open
Abstract
Introduction The progression of coronary atherosclerosis is an active and regulated process. The Wnt signaling pathway is thought to play an active role in the pathogenesis of several cardiovascular diseases; however, a better understanding of this system in atherosclerosis is yet to be unraveled. Methods In this study, real-time quantitative reverse transcriptase-polymerase chain reaction (RT-PCR) and Western blotting were used to quantify the expression of Wnt3a, Wnt5a, and Wnt5b in the human coronary plaque, and immunohistochemistry was used to identify sites of local expression. To determine the pathologic significance of increased Wnt, human vascular smooth muscle cells (vSMCs) were treated with Wnt3a, Wnt5a, and Wnt5b recombinant proteins and assessed for changes in cell differentiation and function. Results RT-PCR and Western blotting showed a significant increase in the expression of Wnt3a, Wnt5a, Wnt5b, and their receptors in diseased coronary arteries compared with that in non-diseased coronary arteries. Immunohistochemistry revealed an abundant expression of Wnt3a and Wnt5b in diseased coronary arteries, which contrasted with little or no signals in normal coronary arteries. Immunostaining of Wnt3a and Wnt5b was found largely in inflammatory cells and myointimal cells. The treatment of vSMCs with Wnt3a, Wnt5a, and Wnt5b resulted in increased vSMC differentiation, migration, calcification, oxidative stress, and impaired cholesterol handling. Conclusions This study demonstrates the upregulation of three important members of canonical and non-canonical Wnt signaling pathways and their receptors in coronary atherosclerosis and shows an important role for these molecules in plaque development through increased cellular remodeling and impaired cholesterol handling.
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Affiliation(s)
- Kashif Khan
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, QC, Canada
| | - Bin Yu
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, QC, Canada
| | | | - Eric Rhéaume
- Department of Medicine, Montreal Heart Institute, Montreal, QC, Canada
| | - Hamood Al-Kindi
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, QC, Canada
| | - Sabin Filimon
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, QC, Canada
| | - Cristina Pop
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, QC, Canada
| | - Jacques Genest
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, QC, Canada
| | - Renzo Cecere
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, QC, Canada
| | - Adel Schwertani
- Cardiology and Cardiac Surgery, McGill University Health Center, Montreal, QC, Canada
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Zaslow SJ, Oliveira-Paula GH, Chen W. Magnesium and Vascular Calcification in Chronic Kidney Disease: Current Insights. Int J Mol Sci 2024; 25:1155. [PMID: 38256228 PMCID: PMC10816532 DOI: 10.3390/ijms25021155] [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: 12/22/2023] [Revised: 01/12/2024] [Accepted: 01/14/2024] [Indexed: 01/24/2024] Open
Abstract
Magnesium (Mg) plays crucial roles in multiple essential biological processes. As the kidneys are the primary organ responsible for maintaining the blood concentration of Mg, people with chronic kidney disease (CKD) may develop disturbances in Mg. While both hyper- and hypomagnesemia may lead to adverse effects, the consequences associated with hypomagnesemia are often more severe and lasting. Importantly, observational studies have shown that CKD patients with hypomagnesemia have greater vascular calcification. Vascular calcification is accelerated and contributes to a high mortality rate in the CKD population. Both in vitro and animal studies have demonstrated that Mg protects against vascular calcification via several potential mechanisms, such as inhibiting the formation of both hydroxyapatite and pathogenic calciprotein particles as well as limiting osteogenic differentiation, a process in which vascular smooth muscle cells in the media layer of the arteries transform into bone-like cells. These preclinical findings have led to several important clinical trials that have investigated the effects of Mg supplementation on vascular calcification in people with CKD. Interestingly, two major clinical studies produced contradictory findings, resulting in a state of equipoise. This narrative review provides an overview of our current knowledge in the renal handling of Mg in health and CKD and the underlying mechanisms by which Mg may protect against vascular calcification. Lastly, we evaluate the strength of evidence from clinical studies on the efficacy of Mg supplementation and discuss future research directions.
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Affiliation(s)
- Shari J. Zaslow
- Department of Medicine, Nephrology Division, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- The Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT 05405, USA
| | - Gustavo H. Oliveira-Paula
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Wei Chen
- Department of Medicine, Nephrology Division, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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Ciceri P, Artioli L, Magagnoli L, Barassi A, Alvarez JC, Massy ZA, Galassi A, Cozzolino M. The Role of Uremic Retention Solutes in the MIA Syndrome in Hemodialysis Subjects. Blood Purif 2023; 52:41-53. [PMID: 35512641 DOI: 10.1159/000524335] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/22/2022] [Indexed: 02/01/2023]
Abstract
INTRODUCTION In chronic kidney disease (CKD), the high morbidity and mortality risk for cardiovascular disease (CVD) are not easily explained only on the basis of traditional factors. Among nontraditional ones involved in CKD, malnutrition, inflammation, and atherosclerosis/calcification have been described as the "MIA syndrome." METHODS In this pilot study, we evaluated the association between the variation in serum levels of 27 uremic retention solutes plus 6 indexes related to the MIA syndrome processes in a population of dialysis patients. RESULTS As expected, we found a direct correlation between serum albumin and both phosphate and total cholesterol (r = 0.54 and 0.37, respectively; p < 0.05). Moreover, total cholesterol and phosphate directly correlate (r = 0.40, p < 0.05). The relationship between malnutrition and inflammation is highlighted by the correlation of serum cholesterol levels with serum alpha-1 acid glycoprotein and IL-6 levels (r = -0.56, r = -0.39, respectively; p < 0.05). Moreover, the relation between inflammation and atherosclerosis/calcification is supported by the correlation of IL-6 with VEGF levels and vascular smooth muscle cell high-Pi in vitro calcification (r = 0.81, r = 0.66, respectively; p < 0.01). CONCLUSION We found significant correlations between several uremic retention solutes and malnutrition, inflammation, and atherosclerosis/calcification. Our findings support the hypothesis of a central role of the uremic milieu in the MIA syndrome and ultimately in the pathogenesis of CKD-specific CVD risk factors.
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Affiliation(s)
- Paola Ciceri
- Department of Health Sciences, Laboratory of Experimental Nephrology, University of Milan, Milan, Italy
| | - Luisa Artioli
- Department of Health Sciences, Laboratory of Experimental Nephrology, University of Milan, Milan, Italy
| | - Lorenza Magagnoli
- Renal Division, Department of Health Sciences, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Alessandra Barassi
- Department of Health Sciences, Laboratory of Clinical Biochemistry, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Jean-Claude Alvarez
- Laboratory of Pharmacology and Toxicology, CHU Raymond Poincare, Garches, France.,INSERM U-1173, UFR des Sciences de la Santé Simone Veil, Université Paris-Saclay (Versailles-Saint-Quentin-en-Yvelines), Versailles, France
| | - Ziad A Massy
- Division of Nephrology, Ambroise Paré University Hospital, APHP, Boulogne-Billancourt, France.,Centre for Research in Epidemiology and Population Health (CESP), INSERM UMRS 1018, Université Paris-Saclay, Université Versailles Saint Quentin (UVSQ), Villejuif, France
| | - Andrea Galassi
- Renal Division, Department of Health Sciences, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Mario Cozzolino
- Department of Health Sciences, Laboratory of Experimental Nephrology, University of Milan, Milan, Italy.,Renal Division, Department of Health Sciences, ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
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Abstract
Uremic calciphylaxis is a rare disease that affects patients with chronic end-stage renal disease. It is a pathology of the microvessels of the dermis and hypodermis which are calcified and whose thrombosis leads to skin necrosis. Calciphylaxis lesions can be distal and axial. They lead to pain, infection and are associated with denutrition and in high mortality rate (40-80% at 1 year). This general review describes the clinical and para-clinical presentations of calciphylaxis. It summarizes the current knowledge on its pathogenesis and the therapeutical options that can be proposed to improve the management and attempt to reduce the mortality of patients with uremic calciphylaxis.
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Anagnostis P, Florentin M, Livadas S, Lambrinoudaki I, Goulis DG. Bone Health in Patients with Dyslipidemias: An Underestimated Aspect. Int J Mol Sci 2022; 23:ijms23031639. [PMID: 35163560 PMCID: PMC8835770 DOI: 10.3390/ijms23031639] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 01/28/2022] [Accepted: 01/28/2022] [Indexed: 02/04/2023] Open
Abstract
Beyond being aging-related diseases, atherosclerosis and osteoporosis share common pathogenetic pathways implicated in bone and vascular mineralization. However, the contributory role of dyslipidemia in this interplay is less documented. The purpose of this narrative review is to provide epidemiological evidence regarding the prevalence of bone disease (osteoporosis, fracture risk) in patients with dyslipidemias and to discuss potential common pathophysiological mechanisms linking osteoporosis and atherosclerosis. The effect of hypolipidemic therapy on bone metabolism is also discussed. Despite the high data heterogeneity and the variable quality of studies, dyslipidemia, mainly elevated total and low-density lipoprotein cholesterol concentrations, is associated with low bone mass and increased fracture risk. This effect may be mediated directly by the increased oxidative stress and systemic inflammation associated with dyslipidemia, leading to increased osteoclastic activity and reduced bone formation. Moreover, factors such as estrogen, vitamin D and K deficiency, and increased concentrations of parathyroid hormone, homocysteine and lipid oxidation products, can also contribute. Regarding the effect of hypolipidemic medications on bone metabolism, statins may slightly increase BMD and reduce fracture risk, although the evidence is not robust, as it is for omega-3 fatty acids. No evidence exists for the effects of ezetimibe, fibrates, and niacin. In any case, more prospective studies are needed further to elucidate the association between lipids and bone strength.
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Affiliation(s)
- Panagiotis Anagnostis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece;
- Correspondence: ; Tel.: +30-2310-257150; Fax: +30-2310-281179
| | - Matilda Florentin
- Department of Internal Medicine, University Hospital of Ioannina, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece;
| | | | - Irene Lambrinoudaki
- 2nd Department of Obstetrics and Gynecology, Medical School, National and Kapodistrian University of Athens, 11528 Athens, Greece;
| | - Dimitrios G. Goulis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 56429 Thessaloniki, Greece;
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Tanaka T, Asano T, Okui T, Kuraoka S, Singh SA, Aikawa M, Aikawa E. Computational Screening Strategy for Drug Repurposing Identified Niclosamide as Inhibitor of Vascular Calcification. Front Cardiovasc Med 2022; 8:826529. [PMID: 35127876 PMCID: PMC8811128 DOI: 10.3389/fcvm.2021.826529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/27/2021] [Indexed: 12/12/2022] Open
Abstract
Vascular calcification is a cardiovascular disorder with no therapeutic options. We recently reported that o-octanoyltransferase (CROT) suppression can inhibit vascular calcification in vivo and in vitro through amelioration of mitochondrial function and fatty acid metabolism. Inhibiting calcification with a small molecule compound targeting CROT-associated mechanisms will be a promising non-invasive treatment of vascular calcification. Here we used a computational approach to search for existing drugs that can inhibit vascular calcification through the CROT pathway. For screening of the compounds that reduce CROT expression, we utilized the Connectivity Map encompassing the L1000 computational platform that contains transcription profiles of various cell lines and perturbagens including small molecules. Small molecules (n = 13) were identified and tested in human primary smooth muscle cells cultured in osteogenic media to induce calcification. Niclosamide, an FDA-improved anthelmintic drug, markedly inhibited calcification along with reduced alkaline phosphatase activity and CROT mRNA expression. To validate this compound in vivo, LDL receptor (Ldlr)-deficient mice fed a high fat diet were given oral doses of niclosamide (0 or 750 ppm admixed with diet) for 10 weeks. Niclosamide treatment decreased aortic and carotid artery calcification as determined by optical near infrared molecular imaging (OsteoSense680) and histological analysis. In addition, niclosamide improved features of fatty liver, including decreased cholesterol levels along with decreased Crot expression, while plasma total cholesterol levels did not change. Proteomic analysis of aortic samples demonstrated that niclosamide affected wingless/integrated (Wnt) signaling pathway and decreased runt-related transcription factor 2 (Runx2) expression, an essential factor for calcification. Our target discovery strategy using a genetic perturbation database with existing drugs identified niclosamide, that in turn inhibited calcification in vivo and in vitro, indicating its potential for the treatment of vascular calcification.
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Affiliation(s)
- Takeshi Tanaka
- Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Takaharu Asano
- Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Takehito Okui
- Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Shiori Kuraoka
- Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Sasha A. Singh
- Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Masanori Aikawa
- Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
- Center for Excellence in Vascular Biology, Cardiovascular Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
- Department of Human Pathology, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Elena Aikawa
- Center for Interdisciplinary Cardiovascular Sciences, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
- Center for Excellence in Vascular Biology, Cardiovascular Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
- Department of Human Pathology, Sechenov First Moscow State Medical University, Moscow, Russia
- *Correspondence: Elena Aikawa
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Bundy K, Boone J, Simpson CL. Wnt Signaling in Vascular Calcification. Front Cardiovasc Med 2021; 8:708470. [PMID: 34595218 PMCID: PMC8476789 DOI: 10.3389/fcvm.2021.708470] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/26/2021] [Indexed: 11/13/2022] Open
Abstract
Cardiovascular disease is a worldwide epidemic and considered the leading cause of death globally. Due to its high mortality rates, it is imperative to study the underlying causes and mechanisms of the disease. Vascular calcification, or the buildup of hydroxyapatite within the arterial wall, is one of the greatest contributors to cardiovascular disease. Medial vascular calcification is a predictor of cardiovascular events such as, but not limited to, hypertension, stiffness, and even heart failure. Vascular smooth muscle cells (VSMCs), which line the arterial wall and function to maintain blood pressure, are hypothesized to undergo a phenotypic switch into bone-forming cells during calcification, mimicking the manner by which mesenchymal stem cells differentiate into osteoblast cells throughout osteogenesis. RunX2, a transcription factor necessary for osteoblast differentiation and a target gene of the Wnt signaling pathway, has also shown to be upregulated when calcification is present, implicating that the Wnt cascade may be a key player in the transdifferentiation of VSMCs. It is important to note that the phenotypic switch of VSMCs from a healthy, contractile state to a proliferative, synthetic state is necessary in response to the vascular injury surrounding calcification. The lingering question, however, is if VSMCs acquire this synthetic phenotype through the Wnt pathway, how and why does this signaling occur? This review seeks to highlight the potential role of the canonical Wnt signaling pathway within vascular calcification based on several studies and further discuss the Wnt ligands that specifically aid in VSMC transdifferentiation.
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Affiliation(s)
- Kaylee Bundy
- Agricultural and Biological Engineering, Mississippi State University, Starkville, MS, United States
| | - Jada Boone
- Agricultural and Biological Engineering, Mississippi State University, Starkville, MS, United States
| | - C LaShan Simpson
- Agricultural and Biological Engineering, Mississippi State University, Starkville, MS, United States
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Zhou SJ, Wang XX, Tang W, Han QF, He L, Zhang AH. Lower Serum Irisin Levels Are Associated with Increased Abdominal Aortic Calcification in Peritoneal Dialysis Patients. KIDNEY DISEASES 2021; 7:219-226. [PMID: 34179117 DOI: 10.1159/000512514] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/22/2020] [Indexed: 12/13/2022]
Abstract
Introduction Vascular calcification (VC), with the mechanisms remaining unclear, is closely related with dialysis patients' cardiovascular mortality and all-cause mortality. Irisin is a newly identified myokine. This study aims to evaluate the serum irisin levels of peritoneal dialysis (PD) patients and their relationship with VC. Methods This cross-sectional study enrolled stable PD patients in Peking University Third Hospital who were followed for >6 months. We used plain X-ray films of abdomen to quantitatively evaluate VC of abdominal aorta. VC was evaluated by abdominal aortic calcification (AAC) scores, and PD patients were divided into the high AAC score group (AAC score ≥4) and the low AAC score group (AAC score <4). Demographic data and laboratory indexes were collected. Serum irisin concentrations were measured by enzyme-linked immunosorbent assay. Results A total of 102 PD patients were enrolled in this study, and 52 patients (51.0%) were found to have a high AAC score of ≥4. Age, diabetic mellitus proportion, pulse pressure, hypercalcemia (corrected calcium >2.54 mmol/L) rate, serum ultrasensitive C reactive protein, and AAC scores were significantly higher in the high AAC score group than those of the low AAC score group (p < 0.05). The high AAC score group had lower diastolic blood pressure, serum albumin, and serum carbon dioxide combining power compared with the low AAC score group (p < 0.05). Serum irisin levels of PD patients with a high AAC score were significantly lower than those of PD patients with a low AAC score (109.7 ± 13.1 ng/mL vs. 115.9 ± 10.1 ng/mL, p = 0.010). The multivariate logistic regression analyses showed that serum irisin, diabetic mellitus, serum ultrasensitive C reactive protein, and age were independent factors influencing the occurrence of VC in PD patients. Conclusion Our results are the first to provide a clinical evidence of the association between serum irisin and abdominal aortic calcification in PD patients. Lower irisin levels, diabetic mellitus, higher serum ultrasensitive C reactive protein, and older age could be potential predictive factors for VC in PD patients.
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Affiliation(s)
- Si-Jia Zhou
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Xiao-Xiao Wang
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, China
| | - Wen Tang
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Qing-Feng Han
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Lian He
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Ai-Hua Zhang
- Department of Nephrology, Xuanwu Hospital Capital Medical University, Beijing, China
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Tyson J, Bundy K, Roach C, Douglas H, Ventura V, Segars MF, Schwartz O, Simpson CL. Mechanisms of the Osteogenic Switch of Smooth Muscle Cells in Vascular Calcification: WNT Signaling, BMPs, Mechanotransduction, and EndMT. Bioengineering (Basel) 2020; 7:bioengineering7030088. [PMID: 32781528 PMCID: PMC7552614 DOI: 10.3390/bioengineering7030088] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/27/2020] [Accepted: 08/01/2020] [Indexed: 12/16/2022] Open
Abstract
Characterized by the hardening of arteries, vascular calcification is the deposition of hydroxyapatite crystals in the arterial tissue. Calcification is now understood to be a cell-regulated process involving the phenotypic transition of vascular smooth muscle cells into osteoblast-like cells. There are various pathways of initiation and mechanisms behind vascular calcification, but this literature review highlights the wingless-related integration site (WNT) pathway, along with bone morphogenic proteins (BMPs) and mechanical strain. The process mirrors that of bone formation and remodeling, as an increase in mechanical stress causes osteogenesis. Observing the similarities between the two may aid in the development of a deeper understanding of calcification. Both are thought to be regulated by the WNT signaling cascade and bone morphogenetic protein signaling and can also be activated in response to stress. In a pro-calcific environment, integrins and cadherins of vascular smooth muscle cells respond to a mechanical stimulus, activating cellular signaling pathways, ultimately resulting in gene regulation that promotes calcification of the vascular extracellular matrix (ECM). The endothelium is also thought to contribute to vascular calcification via endothelial to mesenchymal transition, creating greater cell plasticity. Each of these factors contributes to calcification, leading to increased cardiovascular mortality in patients, especially those suffering from other conditions, such as diabetes and kidney failure. Developing a better understanding of the mechanisms behind calcification may lead to the development of a potential treatment in the future.
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Rajapakse D, Peterson K, Mishra S, Fan J, Lerner J, Campos M, Wistow G. Amelotin is expressed in retinal pigment epithelium and localizes to hydroxyapatite deposits in dry age-related macular degeneration. Transl Res 2020; 219:45-62. [PMID: 32160961 PMCID: PMC7197213 DOI: 10.1016/j.trsl.2020.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 02/19/2020] [Accepted: 02/20/2020] [Indexed: 11/28/2022]
Abstract
Deposition of hydroxyapatite (HAP) basal to the retinal pigment epithelium (RPE) is linked to the progression of age-related macular degeneration (AMD). Serum-deprivation of RPE cells in culture mimics some features of AMD. We now show that serum-deprivation also leads to the induction of amelotin (AMTN), a protein involved in hydroxyapatite mineralization in enamel. HAP is formed in our culture model and is blocked by siRNA inhibition of AMTN expression. In situ hybridization and immunofluorescence imaging of human eye tissue show that AMTN is expressed in RPE of donor eyes with geographic atrophy ("dry" AMD) in regions with soft drusen containing HAP spherules or nodules. AMTN is not found in hard drusen, normal RPE, or donor eyes diagnosed with wet AMD. These findings suggest that AMTN is involved in formation of HAP spherules or nodules in AMD, and as such provides a new therapeutic target for slowing disease progression.
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Affiliation(s)
- Dinusha Rajapakse
- Section on Molecular Structure and Functional Genomics, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Katherine Peterson
- Section on Molecular Structure and Functional Genomics, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Sanghamitra Mishra
- Section on Molecular Structure and Functional Genomics, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Jianguo Fan
- Section on Molecular Structure and Functional Genomics, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Joshua Lerner
- Section on Molecular Structure and Functional Genomics, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Maria Campos
- Histopathology Core Facility, National Eye Institute, National Institutes of Health, Bethesda, Maryland
| | - Graeme Wistow
- Section on Molecular Structure and Functional Genomics, National Eye Institute, National Institutes of Health, Bethesda, Maryland.
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12
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da Silva RA, da S Feltran G, da C Fernandes CJ, Zambuzzi WF. Osteogenic gene markers are epigenetically reprogrammed during contractile-to-calcifying vascular smooth muscle cell phenotype transition. Cell Signal 2020; 66:109458. [PMID: 31678252 DOI: 10.1016/j.cellsig.2019.109458] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 10/16/2019] [Accepted: 10/24/2019] [Indexed: 10/25/2022]
Abstract
The understanding of vascular calcification-based mechanism is an urgent pending task in vascular biology and this prompted us to better address this issue by investigating whether DNA methylation mechanism might drive osteogenic marker genes modulation in primary human vascular smooth muscle cells (VSMCs) responding to calcium and phosphate levels overload up to 72 h. Firstly, our data shows this calcifying process recapitulates the molecular repertory of osteogenic biomarkers and specifically requiring RUNX2, Osterix and ALP, BSP genes activations along 72 h in vitro, and this behavior was validated here using other lineages. Conversely, both BMPs 4 and 7 were significantly overexpressed, maybe already as a mechanism in response to RUNX2 and Osterix genes activities identified earlier in response to the calcifying condition, and taken into maintain the calcifying phenotype of VSMCs. Additionally, survival signaling was maintained active and accompanied by a dynamic cytoskeleton rearrangement signaling requiring MAPK and AKT phosphorylations. Moreover, during the contractile-to-calcifying transition phenotype of VSMCs, epigenetic machinery was finely modulated, requiring the translocation of DNMT3B and TET2 into nucleus and this prompted us evaluating whether the profile of osteogenic-related gene promoters' methylation might contribute with this process. By firstly estimating 5meC/5 hmeC ratio changes, we further specifically show the significance of the epigenetic modulation of Osterix and Bone sialoprotein related gene promoters, presenting a positive correlation between the epigenetic signature of their gene promoters and transcriptional patterns. Altogether, our results show for the first time the importance of epigenetic mechanism on modulating osteogenic gene markers reprogramming during calcifying VSMCs phenotype acquisition, which might drive the genesis of vascular ectopic calcification.
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Affiliation(s)
- Rodrigo A da Silva
- Laboratory of Bioassays and Cellular Dynamics of the Department of Chemistry and Biochemistry, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, São Paulo, 18618-970, Brazil; Department of Biology, Dental School, University of Taubaté, 12020-340, Taubaté, São Paulo, Brazil
| | - Geórgia da S Feltran
- Laboratory of Bioassays and Cellular Dynamics of the Department of Chemistry and Biochemistry, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, São Paulo, 18618-970, Brazil
| | - Célio Júnior da C Fernandes
- Laboratory of Bioassays and Cellular Dynamics of the Department of Chemistry and Biochemistry, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, São Paulo, 18618-970, Brazil
| | - Willian F Zambuzzi
- Laboratory of Bioassays and Cellular Dynamics of the Department of Chemistry and Biochemistry, Institute of Biosciences, São Paulo State University - UNESP, Botucatu, São Paulo, 18618-970, Brazil.
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13
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Luna-Luna M, Criales-Vera S, Medina-Leyte D, Díaz-Zamudio M, Flores-Zapata A, Cruz-Robles D, López-Meneses M, Olvera-Cruz S, Ramírez-Marroquín S, Flores-Castillo C, Fragoso JM, Carreón-Torres E, Vargas-Barrón J, Vargas-Alarcón G, Pérez-Méndez Ó. Bone Morphogenetic Protein-2 and Osteopontin Gene Expression in Epicardial Adipose Tissue from Patients with Coronary Artery Disease Is Associated with the Presence of Calcified Atherosclerotic Plaques. Diabetes Metab Syndr Obes 2020; 13:1943-1951. [PMID: 32606854 PMCID: PMC7295210 DOI: 10.2147/dmso.s253632] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/04/2020] [Indexed: 12/25/2022] Open
Abstract
PURPOSE It has been proposed that the cardiovascular effects of obesity are related to epicardial adipose tissue (EAT), which seems to play an active role on the development and calcification of atherosclerotic plaques, but the mechanisms are still unknown. Therefore, the aim of this study was to determine whether the EAT expresses the genes of calcifying factors and whether such expression is associated with the body mass index (BMI) and with the presence of coronary artery calcium (CAC) in patients with coronary artery disease (CAD). PATIENTS AND METHODS Forty-three patients with CAD were enrolled specifically for this study, and their CAC score and EAT volume were determined by computed tomography. As the group of comparison, 41 patients with aortic valve stenosis and CAC = 0 were included (control group). A representative subgroup of 16 CAD patients and 23 controls were selected to obtain EAT biopsies during the chirurgical procedure from the atrio-interventricular groove. The mRNA expression of bone morphogenetic protein-2 and -4 (BMP-2, BMP-4), osteopontin (OPN), osteonectin (ON), and osteoprotegerin (OPG) in EAT was determined by qPCR. RESULTS The gene expression of OPN and BMP-2 was 70% and 52% higher in the EAT from CAD patients than that in controls, respectively, whereas the expression of OPG, ON, and BMP-4 was similar in both groups. The EAT volume positively correlated with OPG and with the BMI, suggesting a relationship of obesity with local higher expression of calcifying genes in the coronary territory. The logistic regression analysis showed that high levels of both OPN and BMP-2 increased about 6 and 8 times the odds of coronary calcification (CAC score > 0), respectively. CONCLUSION EAT correlated with BMI and expressed the mRNA of calcifying genes but only OPN and BMP-2 expression was higher in CAD patients. Higher levels of both OPN and BMP-2 statistically determined the presence of calcium in coronary arteries of CAD patients.
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Affiliation(s)
- María Luna-Luna
- Molecular Biology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | - Sergio Criales-Vera
- Radiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | - Diana Medina-Leyte
- Molecular Biology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | - Mariana Díaz-Zamudio
- Radiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | - Adriana Flores-Zapata
- Molecular Biology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | - David Cruz-Robles
- Molecular Biology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | - Mauricio López-Meneses
- Adult Cardiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | - Sergio Olvera-Cruz
- Adult Cardiology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | | | | | - José Manuel Fragoso
- Molecular Biology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | | | - Jesús Vargas-Barrón
- Research Direction, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
| | | | - Óscar Pérez-Méndez
- Molecular Biology, National Institute of Cardiology “Ignacio Chávez”, Mexico City, Mexico
- School of Engineering and Sciences, Tecnológico de Monterrey, Campus Monterrey, Mexico City, Mexico
- Correspondence: Óscar Pérez-Méndez Molecular Biology Department, National Institute of Cardiology “Ignacio Chávez”, Mexico City, MexicoTel +52 55 55732911 ext 26300 Email
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14
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Isoherranen K, O'Brien JJ, Barker J, Dissemond J, Hafner J, Jemec GBE, Kamarachev J, Läuchli S, Montero EC, Nobbe S, Sunderkötter C, Velasco ML. Atypical wounds. Best clinical practice and challenges. J Wound Care 2019; 28:S1-S92. [DOI: 10.12968/jowc.2019.28.sup6.s1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Kirsi Isoherranen
- Helsinki University Central Hospital and Helsinki University, Wound Healing Centre and Dermatology Clinic, Helsinki, Finland
| | | | - Judith Barker
- Nurse Practitioner - Wound Management, Rehabilitation, Aged and Community Care., Adjunct Associate Professor, University of Canberra, Canberra, Australia
| | - Joachim Dissemond
- University Hospital of Essen, Department of Dermatology, Venerology and Allergology, Hufelandstraße 55, Essen, Germany
| | - Jürg Hafner
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, Zurich, Switzerland
| | - Gregor B. E. Jemec
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark
| | - Jivko Kamarachev
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, Zurich, Switzerland
| | - Severin Läuchli
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, Zurich, Switzerland
| | | | - Stephan Nobbe
- Department of Dermatology, University Hospital of Zurich, Gloriastrasse 31, Zurich, Switzerland Department of Dermatology, Cantonal Hospital of Frauenfeld, Switzerland
| | - Cord Sunderkötter
- Chair, Department of Dermatology and Venerology, University and University Hospital of Halle, Ernst-Grube-Strasse 40, Halle, Germany
| | - Mar Llamas Velasco
- Department of Dermatology, Hospital Universitario De La Princesa, Madrid, Spain
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15
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Gaudio A, Xourafa A, Rapisarda R, Castellino P, Signorelli SS. Peripheral artery disease and osteoporosis: Not only age‑related (Review). Mol Med Rep 2018; 18:4787-4792. [PMID: 30272311 PMCID: PMC6236267 DOI: 10.3892/mmr.2018.9512] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/11/2018] [Indexed: 01/08/2023] Open
Abstract
Osteoporosis and atherosclerosis are two chronic degenerative diseases that share several biochemical pathways and risk factors. Previous studies have associated osteoporosis with carotid atherosclerosis, cardiovascular mortality and stroke, but data on the relationship with peripheral artery disease are few and conflicting. The OPG/RANK/RANKL system and Wnt/beta catenin signaling seem to be deeply involved in the pathogenesis of bone alterations and atherosclerotic processes also affect arteries of the lower extremities. Hypovitaminosis D could also play a role in the relationship of these two diseases. New and larger studies are necessary to shed light on this association and to design new drugs able to act in both these chronic degenerative diseases.
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Affiliation(s)
- Agostino Gaudio
- Department of Clinical and Experimental Medicine, University of Catania, University Hospital 'G. Rodolico', I‑95123 Catania, Italy
| | - Anastasia Xourafa
- Department of Clinical and Experimental Medicine, University of Catania, University Hospital 'G. Rodolico', I‑95123 Catania, Italy
| | - Rosario Rapisarda
- Department of Clinical and Experimental Medicine, University of Catania, University Hospital 'G. Rodolico', I‑95123 Catania, Italy
| | - Pietro Castellino
- Department of Clinical and Experimental Medicine, University of Catania, University Hospital 'G. Rodolico', I‑95123 Catania, Italy
| | - Salvatore Santo Signorelli
- Department of Clinical and Experimental Medicine, University of Catania, University Hospital 'G. Rodolico', I‑95123 Catania, Italy
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16
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Jin X, Rong S, Yuan W, Gu L, Jia J, Wang L, Yu H, Zhuge Y. High Mobility Group Box 1 Promotes Aortic Calcification in Chronic Kidney Disease via the Wnt/β-Catenin Pathway. Front Physiol 2018; 9:665. [PMID: 29922171 PMCID: PMC5996195 DOI: 10.3389/fphys.2018.00665] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 05/14/2018] [Indexed: 11/13/2022] Open
Abstract
Vascular calcification (VC) is common in chronic kidney disease (CKD), where cardiovascular mortality remains the leading cause of death. Here, we examined the role of high-mobility group box1 (HMGB1), a nuclear DNA-binding protein involved in inflammation, in aortic calcification and renal dysfunction induced by high phosphate in a mouse model of CKD induced by 5/6 nephrectomy. HMGB1 and kidney function markers were measured by ELISA in the serum of CKD patients and in CKD mice. Sections of the aortas of mice were analyzed by immunofluorescence and Alizarin red staining, and protein lysates were generated to analyze the expression of related proteins in response to silencing of HMGB1 or β-catenin by western blotting. Our results showed that serum HMGB1 levels were significantly higher in CKD patients than in healthy controls and related to disease stage. High phosphate promoted the translocation of HMGB1 from the nucleus to the cytosol and aortic calcification in CKD mice in vivo, whereas HMGB1 knockdown ameliorated part of renal and vascular function. β-catenin silencing reversed high phosphate-induced calcification and restored renal marker levels. Taken together, our results suggest that HMGB1 is involved in VC associated with CKD via a mechanism involving the β-catenin.
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Affiliation(s)
- Xiucai Jin
- Department of Ultrasound, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Shu Rong
- Department of Nephrology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weijie Yuan
- Department of Nephrology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lijie Gu
- Department of Nephrology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jieshuang Jia
- Department of Nephrology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ling Wang
- Department of Nephrology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Honglei Yu
- Department of Nephrology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yifeng Zhuge
- Department of Nephrology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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17
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Yasmin, Maskari RA, McEniery CM, Cleary SE, Li Y, Siew K, Figg NL, Khir AW, Cockcroft JR, Wilkinson IB, O'Shaughnessy KM. The matrix proteins aggrecan and fibulin-1 play a key role in determining aortic stiffness. Sci Rep 2018; 8:8550. [PMID: 29867203 PMCID: PMC5986773 DOI: 10.1038/s41598-018-25851-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/18/2018] [Indexed: 12/14/2022] Open
Abstract
Stiffening of the aorta is an important independent risk factor for myocardial infarction and stroke. Yet its genetics is complex and little is known about its molecular drivers. We have identified for the first time, tagSNPs in the genes for extracellular matrix proteins, aggrecan and fibulin-1, that modulate stiffness in young healthy adults. We confirmed SNP associations with ex vivo stiffness measurements and expression studies in human donor aortic tissues. Both aggrecan and fibulin-1 were found in the aortic wall, but with marked differences in the distribution and glycosylation of aggrecan reflecting loss of chondroitin-sulphate binding domains. These differences were age-dependent but the striking finding was the acceleration of this process in stiff versus elastic young aortas. These findings suggest that aggrecan and fibulin-1 have critical roles in determining the biomechanics of the aorta and their modification with age could underpin age-related aortic stiffening.
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Affiliation(s)
- Yasmin
- Division of Experimental Medicine & Immunotherapeutics, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK.
| | - Raya Al Maskari
- Division of Experimental Medicine & Immunotherapeutics, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Carmel M McEniery
- Division of Experimental Medicine & Immunotherapeutics, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Sarah E Cleary
- Division of Experimental Medicine & Immunotherapeutics, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Ye Li
- Brunel Institute of Bioengineering, Brunel University, Uxbridge, Middlesex, UK
| | - Keith Siew
- Division of Experimental Medicine & Immunotherapeutics, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Nichola L Figg
- Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Ashraf W Khir
- Brunel Institute of Bioengineering, Brunel University, Uxbridge, Middlesex, UK
| | - John R Cockcroft
- Division of Cardiology, New York-Presbyterian Hospital, Columbia University, New York, USA
| | - Ian B Wilkinson
- Division of Experimental Medicine & Immunotherapeutics, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Kevin M O'Shaughnessy
- Division of Experimental Medicine & Immunotherapeutics, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
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18
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Affiliation(s)
- Sagar U Nigwekar
- From the Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston (S.U.N., R.T.); the Departments of Biomedical Sciences and Medicine, Cedars-Sinai Medical Center, Los Angeles (R.T.); and the Department of Cardiology, RWTH (Rheinisch-Westfälische Technische Hochschule) Aachen University Hospital, Aachen (V.M.B.), and the Department of Cardiology, Rhein-Maas Klinikum, Würselen (V.M.B.) - both in Germany
| | - Ravi Thadhani
- From the Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston (S.U.N., R.T.); the Departments of Biomedical Sciences and Medicine, Cedars-Sinai Medical Center, Los Angeles (R.T.); and the Department of Cardiology, RWTH (Rheinisch-Westfälische Technische Hochschule) Aachen University Hospital, Aachen (V.M.B.), and the Department of Cardiology, Rhein-Maas Klinikum, Würselen (V.M.B.) - both in Germany
| | - Vincent M Brandenburg
- From the Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston (S.U.N., R.T.); the Departments of Biomedical Sciences and Medicine, Cedars-Sinai Medical Center, Los Angeles (R.T.); and the Department of Cardiology, RWTH (Rheinisch-Westfälische Technische Hochschule) Aachen University Hospital, Aachen (V.M.B.), and the Department of Cardiology, Rhein-Maas Klinikum, Würselen (V.M.B.) - both in Germany
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19
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Fuery MA, Liang L, Kaplan FS, Mohler ER. Vascular ossification: Pathology, mechanisms, and clinical implications. Bone 2018; 109:28-34. [PMID: 28688892 DOI: 10.1016/j.bone.2017.07.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/04/2017] [Accepted: 07/04/2017] [Indexed: 12/28/2022]
Abstract
In recent years, the mechanisms and clinical significance of vascular calcification have been increasingly investigated. For over a century, however, pathologists have recognized that vascular calcification is a form of heterotopic ossification. In this review, we aim to describe the pathology and molecular processes of vascular ossification, to characterize its clinical significance and treatment options, and to elucidate areas that require further investigation. The molecular mechanisms of vascular ossification involve the activation of regulators including bone morphogenic proteins and chondrogenic transcription factors and the loss of mineralization inhibitors like fetuin-A and pyrophosphate. Although few studies have examined the gross pathology of vascular ossification, the presence of these molecular regulators and evidence of microfractures and cartilage have been demonstrated on heart valves and atherosclerotic plaques. These changes are often triggered by common inflammatory and metabolic disorders like diabetes, hyperlipidemia, and chronic kidney disease. The increasing prevalence of these diseases warrants further research into the clinical significance of vascular ossification and future treatment options.
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Affiliation(s)
- Michael A Fuery
- Department of Medicine, Cardiovascular Division, Section of Vascular Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Lusha Liang
- Department of Medicine, Cardiovascular Division, Section of Vascular Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Frederick S Kaplan
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Emile R Mohler
- Department of Medicine, Cardiovascular Division, Section of Vascular Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States.
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20
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Matkar PN, Ariyagunarajah R, Leong-Poi H, Singh KK. Friends Turned Foes: Angiogenic Growth Factors beyond Angiogenesis. Biomolecules 2017; 7:biom7040074. [PMID: 28974056 PMCID: PMC5745456 DOI: 10.3390/biom7040074] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 09/15/2017] [Accepted: 09/22/2017] [Indexed: 12/13/2022] Open
Abstract
Angiogenesis, the formation of new blood vessels from pre-existing ones is a biological process that ensures an adequate blood flow is maintained to provide the cells with a sufficient supply of nutrients and oxygen within the body. Numerous soluble growth factors and inhibitors, cytokines, proteases as well as extracellular matrix proteins and adhesion molecules stringently regulate the multi-factorial process of angiogenesis. The properties and interactions of key angiogenic molecules such as vascular endothelial growth factors (VEGFs), fibroblast growth factors (FGFs) and angiopoietins have been investigated in great detail with respect to their molecular impact on angiogenesis. Since the discovery of angiogenic growth factors, much research has been focused on their biological actions and their potential use as therapeutic targets for angiogenic or anti-angiogenic strategies in a context-dependent manner depending on the pathologies. It is generally accepted that these factors play an indispensable role in angiogenesis. However, it is becoming increasingly evident that this is not their only role and it is likely that the angiogenic factors have important functions in a wider range of biological and pathological processes. The additional roles played by these molecules in numerous pathologies and biological processes beyond angiogenesis are discussed in this review.
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Affiliation(s)
- Pratiek N Matkar
- Division of Cardiology, Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | | | - Howard Leong-Poi
- Division of Cardiology, Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada.
| | - Krishna K Singh
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada.
- Division of Vascular Surgery, Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5B 1W8, Canada.
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada.
- Department of Surgery, University of Toronto, Toronto, ON M5S 1A8, Canada.
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21
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Borrás T. A single gene connects stiffness in glaucoma and the vascular system. Exp Eye Res 2017; 158:13-22. [PMID: 27593913 PMCID: PMC6067113 DOI: 10.1016/j.exer.2016.08.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 08/26/2016] [Accepted: 08/31/2016] [Indexed: 12/13/2022]
Abstract
Arterial calcification results in arterial stiffness and higher systolic blood pressure. Arterial calcification is prevented by the high expression of the Matrix-Gla gene (MGP) in the vascular smooth muscle cells (VSMC) of the arteries' tunica media. Originally, MGP, a gene highly expressed in cartilage and VSMC, was found to be one of the top expressed genes in the trabecular meshwork. The creation of an Mgp-lacZ Knock-In mouse and the use of mouse genetics revealed that in the eye, Mgp's abundant expression is localized and restricted to glaucoma-associated tissues from the anterior and posterior segments. In particular, it is specifically expressed in the regions of the trabecular meshwork and of the peripapillary sclera that surrounds the optic nerve. Because stiffness in these tissues would significantly alter outflow facility and biomechanical scleral stress in the optic nerve head (ONH), we propose MGP as a strong candidate for the regulation of stiffness in glaucoma. MGP further illustrates the presence of a common function affecting key glaucomatous parameters in the front and back of the eye, and thus offers the possibility for a sole therapeutic target for the disease.
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Affiliation(s)
- Teresa Borrás
- Department of Ophthalmology, University of North Carolina School of Medicine, 4109C Neuroscience Research Building CB 7041, 105 Mason Farm Road, Chapel Hill, NC 27599-7041, USA.
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22
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Deng D, Diao Z, Han X, Liu W. Secreted Frizzled-Related Protein 5 Attenuates High Phosphate-Induced Calcification in Vascular Smooth Muscle Cells by Inhibiting the Wnt/ß-Catenin Pathway. Calcif Tissue Int 2016; 99:66-75. [PMID: 26895007 DOI: 10.1007/s00223-016-0117-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 02/09/2016] [Indexed: 11/28/2022]
Abstract
Vascular calcification (VC) is highly prevalent and represents a major cardiovascular risk factor in chronic kidney disease (CKD) patients. High phosphate (HP) levels are strongly associated with VC in this population. Secreted frizzled-related protein 5 (SFRP5), one of the inhibitors of the Wnt pathway, is a known anti-inflammatory adipokine with a positive effect on metabolic and cardiovascular diseases, in addition to its anticancer potency. However, the role of SFRP5 in the pathophysiology of VC is unclear. This work aimed to study the mechanism of action of SFRP5 on the progression of HP-induced VC, which resembles the CKD-related VC, through its direct effect on vascular smooth muscle cells (VSMCs) in vitro. Addition of SFRP5 significantly inhibited HP-induced calcification of VSMCs as determined by Alizarin red staining and calcium content. The inhibitory effect of SFRP5 on calcification of VSMCs was due to the suppression of HP-induced expression of calcification and osteoblastic markers. In addition, SFRP5 abrogated HP-induced activation of the Wnt/ß-catenin pathway, which plays a key role in the pathogenesis of VC. The specificity of SFRP5 for the inhibition of calcification of VSMCs was confirmed by using a neutralizing antibody to SFRP5. Our results suggest that SFRP5 inhibits HP-induced calcification of VSMCs by inhibiting the expression of calcification and osteoblastic markers, as well as the Wnt/ß-catenin pathway. Our study may indicate that SFRP5 is a potential therapeutic agent in calcification of VSMCs.
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Affiliation(s)
- Dai Deng
- Department of Nephrology, Affiliated Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing, 100050, China
| | - Zongli Diao
- Department of Nephrology, Affiliated Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing, 100050, China
| | - Xue Han
- Department of Nephrology, Affiliated Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing, 100050, China
| | - Wenhu Liu
- Department of Nephrology, Affiliated Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing, 100050, China.
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23
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Chihara M, Nakamura T, Otsuka-Kanazawa S, Ichii O, Elewa YHA, Kon Y. Genetic factors derived from the MRL/MpJ mouse function to maintain the integrity of spermatogenesis after heat exposure. Andrology 2015; 3:991-9. [DOI: 10.1111/andr.12082] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Revised: 05/14/2015] [Accepted: 06/23/2015] [Indexed: 01/19/2023]
Affiliation(s)
- M. Chihara
- Laboratory of Anatomy; Department of Biomedical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Kita-ku Sapporo Japan
| | - T. Nakamura
- Laboratory of Anatomy; Department of Biomedical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Kita-ku Sapporo Japan
- Section of Biological Safety Research; Chitose Laboratory; Japan Food Research Laboratories; Chitose Hokkaido Japan
| | - S. Otsuka-Kanazawa
- Laboratory of Anatomy; Department of Biomedical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Kita-ku Sapporo Japan
| | - O. Ichii
- Laboratory of Anatomy; Department of Biomedical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Kita-ku Sapporo Japan
| | - Y. H. A. Elewa
- Laboratory of Anatomy; Department of Biomedical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Kita-ku Sapporo Japan
- Department of Histology and Cytology; Faculty of Veterinary Medicine; Zagazig University; Zagazig Egypt
| | - Y. Kon
- Laboratory of Anatomy; Department of Biomedical Sciences; Graduate School of Veterinary Medicine; Hokkaido University; Kita-ku Sapporo Japan
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Chaturvedi P, Chen NX, O'Neill K, McClintick JN, Moe SM, Janga SC. Differential miRNA Expression in Cells and Matrix Vesicles in Vascular Smooth Muscle Cells from Rats with Kidney Disease. PLoS One 2015; 10:e0131589. [PMID: 26115487 PMCID: PMC4482652 DOI: 10.1371/journal.pone.0131589] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 06/02/2015] [Indexed: 01/14/2023] Open
Abstract
Vascular calcification is a complex process and has been associated with aging, diabetes, chronic kidney disease (CKD). Although there have been several studies that examine the role of miRNAs (miRs) in bone osteogenesis, little is known about the role of miRs in vascular calcification and their role in the pathogenesis of vascular abnormalities. Matrix vesicles (MV) are known to play in important role in initiating vascular smooth muscle cell (VSMC) calcification. In the present study, we performed miRNA microarray analysis to identify the dysregulated miRs between MV and VSMC derived from CKD rats to understand the role of post-transcriptional regulatory networks governed by these miRNAs in vascular calcification and to uncover the differential miRNA content of MV. The percentage of miRNA to total RNA was increased in MV compared to VSMC. Comparison of expression profiles of miRNA by microarray demonstrated 33 miRs to be differentially expressed with the majority (~ 57%) of them down-regulated. Target genes controlled by differentially expressed miRNAs were identified utilizing two different complementary computational approaches Miranda and Targetscan to understand the functions and pathways that may be affected due to the production of MV from calcifying VSMC thereby contributing to the regulation of genes by miRs. We found several processes including vascular smooth muscle contraction, response to hypoxia and regulation of muscle cell differentiation to be enriched. Signaling pathways identified included MAP-kinase and wnt signaling that have previously been shown to be important in vascular calcification. In conclusion, our results demonstrate that miRs are concentrated in MV from calcifying VSMC, and that important functions and pathways are affected by the miRs dysregulation between calcifying VSMC and the MV they produce. This suggests that miRs may play a very important regulatory role in vascular calcification in CKD by controlling an extensive network of post-transcriptional targets.
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Affiliation(s)
- Praneet Chaturvedi
- Department of Biohealth Informatics, School of Informatics and Computing, Indiana University Purdue University, Indianapolis, Indiana, United States of America
| | - Neal X Chen
- Division of Nephrology, Department of Medicine, School of Medicine, Indiana University, Indianapolis, Indiana, United States of America
| | - Kalisha O'Neill
- Division of Nephrology, Department of Medicine, School of Medicine, Indiana University, Indianapolis, Indiana, United States of America
| | - Jeanette N McClintick
- Division of Nephrology, Department of Medicine, School of Medicine, Indiana University, Indianapolis, Indiana, United States of America
| | - Sharon M Moe
- Division of Nephrology, Department of Medicine, School of Medicine, Indiana University, Indianapolis, Indiana, United States of America; Roudebush VA Medical Center, Indianapolis, Indiana, United States of America
| | - Sarath Chandra Janga
- Department of Biohealth Informatics, School of Informatics and Computing, Indiana University Purdue University, Indianapolis, Indiana, United States of America; Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, 5021 Health Information and Translational Sciences (HITS), Indianapolis, Indiana, United States of America; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Medical Research and Library Building, Indianapolis, Indiana, United States of America
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Beazley KE, Nurminsky D, Lima F, Gandhi C, Nurminskaya MV. Wnt16 attenuates TGFβ-induced chondrogenic transformation in vascular smooth muscle. Arterioscler Thromb Vasc Biol 2015; 35:573-9. [PMID: 25614285 PMCID: PMC4344425 DOI: 10.1161/atvbaha.114.304393] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Phenotypic plasticity of vascular smooth muscle cells (VSMCs) contributes to cardiovascular disease. Chondrocyte-like transformation of VSMCs associates with vascular calcification and underlies the formation of aortic cartilaginous metaplasia induced in mice by genetic loss of matrix Gla protein (MGP). Previous microarray analysis identified a dramatic downregulation of Wnt16 in calcified MGP-null aortae, suggesting an antagonistic role for Wnt16 in the chondrogenic transformation of VSMCs. APPROACH AND RESULTS Wnt16 is significantly downregulated in MGP-null aortae, before the histological appearance of cartilaginous metaplasia, and in primary MGP-null VSMCs. In contrast, intrinsic TGFβ is activated in MGP-null VSMCs and is necessary for spontaneous chondrogenesis of these cells in high-density micromass cultures. TGFβ3-induced chondrogenic transformation in wild-type VSMCs associates with Smad2/3-dependent Wnt16 downregulation, but Wnt16 does not suppress TGFβ3-induced Smad activation. In addition, TGFβ3 inhibits Notch signaling in wild-type VSMCs, and this pathway is downregulated in MGP-null aortae. Exogenous Wnt16 stimulates Notch activity and attenuates TGFβ3-induced downregulation of Notch in wild-type VSMCs, prevents chondrogenesis in MGP-null and TGFβ3-treated wild-type VSMCs, and stabilizes expression of contractile markers of differentiated VSMCs. CONCLUSIONS We describe a novel TGFβ-Wnt16-Notch signaling conduit in the chondrocyte-like transformation of VSMCs and identify endogenous TGFβ activity in MGP-null VSMCs as a critical mediator of chondrogenesis. Our proposed model suggests that the activated TGFβ pathway inhibits expression of Wnt16, which is a positive regulator of Notch signaling and a stabilizer of VSMC phenotype. These data advance the comprehensive mechanistic understanding of VSMC transformation and may identify a novel potential therapeutic target in vascular calcification.
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Affiliation(s)
- Kelly E Beazley
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore
| | - Dmitry Nurminsky
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore
| | - Florence Lima
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore
| | - Chintan Gandhi
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore
| | - Maria V Nurminskaya
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore.
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Cangemi C, Hansen ML, Argraves WS, Rasmussen LM. Fibulins and their role in cardiovascular biology and disease. Adv Clin Chem 2014; 67:245-65. [PMID: 25735864 DOI: 10.1016/bs.acc.2014.09.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Fibulins are a group of extracellular matrix proteins of which many are present in high amounts in the cardiovascular system. They share common biochemical properties and are often found in relation to basement membranes or elastic fibers. Observations in humans with specific mutations in fibulin genes, together with results from genetically engineered mice and data from human cardiovascular tissue suggest that the fibulin family of proteins play important functional roles in the cardiovascular system. Moreover, fibulin-1 circulates in high concentrations in plasma and may function as a cardiovascular disease marker.
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Affiliation(s)
- Claudia Cangemi
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Maria Lyck Hansen
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - William Scott Argraves
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Lars Melholt Rasmussen
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark.
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Chihara M, Nakamura T, Sakakibara N, Otsuka S, Ichii O, Kon Y. The Onset of Heat-Induced Testicular Calcification in Mice. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 184:2480-92. [DOI: 10.1016/j.ajpath.2014.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 05/29/2014] [Accepted: 06/04/2014] [Indexed: 11/27/2022]
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28
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Lu KC, Wu CC, Yen JF, Liu WC. Vascular calcification and renal bone disorders. ScientificWorldJournal 2014; 2014:637065. [PMID: 25136676 PMCID: PMC4127293 DOI: 10.1155/2014/637065] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 06/15/2014] [Accepted: 06/28/2014] [Indexed: 12/11/2022] Open
Abstract
At the early stage of chronic kidney disease (CKD), the systemic mineral metabolism and bone composition start to change. This alteration is known as chronic kidney disease-mineral bone disorder (CKD-MBD). It is well known that the bone turnover disorder is the most common complication of CKD-MBD. Besides, CKD patients usually suffer from vascular calcification (VC), which is highly associated with mortality. Many factors regulate the VC mechanism, which include imbalances in serum calcium and phosphate, systemic inflammation, RANK/RANKL/OPG triad, aldosterone, microRNAs, osteogenic transdifferentiation, and effects of vitamins. These factors have roles in both promoting and inhibiting VC. Patients with CKD usually have bone turnover problems. Patients with high bone turnover have increase of calcium and phosphate release from the bone. By contrast, when bone turnover is low, serum calcium and phosphate levels are frequently maintained at high levels because the reservoir functions of bone decrease. Both of these conditions will increase the possibility of VC. In addition, the calcified vessel may secrete FGF23 and Wnt inhibitors such as sclerostin, DKK-1, and secreted frizzled-related protein to prevent further VC. However, all of them may fight back the inhibition of bone formation resulting in fragile bone. There are several ways to treat VC depending on the bone turnover status of the individual. The main goals of therapy are to maintain normal bone turnover and protect against VC.
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Affiliation(s)
- Kuo-Cheng Lu
- Division of Nephrology, Department of Medicine, Cardinal Tien Hospital, School of Medicine, Fu Jen Catholic University, New Taipei City 23148, Taiwan
| | - Chia-Chao Wu
- Division of Nephrology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Jen-Fen Yen
- Division of Nephrology, Department of Internal Medicine, Yonghe Cardinal Tien Hospital, 80 Zhongxing Street, Yonghe District, New Taipei City 23445, Taiwan
| | - Wen-Chih Liu
- Division of Nephrology, Department of Internal Medicine, Yonghe Cardinal Tien Hospital, 80 Zhongxing Street, Yonghe District, New Taipei City 23445, Taiwan
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29
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Chen NX, O'Neill K, Akl NK, Moe SM. Adipocyte induced arterial calcification is prevented with sodium thiosulfate. Biochem Biophys Res Commun 2014; 449:151-6. [PMID: 24824185 DOI: 10.1016/j.bbrc.2014.05.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 05/02/2014] [Indexed: 02/02/2023]
Abstract
BACKGROUND Calcification can occur in fat in multiple clinical conditions including in the dermis, breasts and in the abdomen in calciphylaxis. All of these are more common in patients with advanced kidney disease. Clinically, hyperphosphatemia and obesity are risk factors. Thus we tested the hypothesis that adipocytes can calcify in the presence of elevated phosphorus and/or that adipocytes exposed to phosphorus can induce vascular smooth muscle cell (VSMC) calcification. METHODS 3T3-L1 preadipocytes were induced into mature adipocytes and then treated with media containing high phosphorus. Calcification was assessed biochemically and PCR performed to determine the expression of genes for osteoblast and adipocyte differentiation. Adipocytes were also co-cultured with bovine VSMC to determine paracrine effects, and the efficacy of sodium thiosulfate was determined. RESULTS The results demonstrated that high phosphorus induced the calcification of differentiated adipocytes with increased expression of osteopontin, the osteoblast transcription factor Runx2 and decreased expression of adipocyte transcription factors peroxisome proliferator-activated receptor γ (PPARγ) and CCAAT-enhancer-binding protein α (CEBPα), indicating that high phosphorus led to a phenotypic switch of adipocytes to an osteoblast like phenotype. Sodium thiosulfate, dose dependently decreased adipocyte calcification and inhibited adipocyte induced increase of VSMC calcification. Co-culture studies demonstrated that adipocytes facilitated VSMC calcification partially mediated by changes of secretion of leptin and vascular endothelial growth factor (VEGF) from adipocytes. CONCLUSION High phosphorus induced calcification of mature adipocytes, and adipocytes exposed to elevated phosphorus can induce calcification of VSMC in a paracrine manner. Sodium thiosulfate inhibited this calcification and decreased the secretin of leptin and VEGF from adipocytes. These results suggest that adipocyte exposure to elevated phosphorus may be a pathogenic factor in calcification observed in the skin in calciphylaxis and other diseases.
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Affiliation(s)
- Neal X Chen
- Divison of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA.
| | - Kalisha O'Neill
- Divison of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Nader Kassis Akl
- Divison of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Sharon M Moe
- Divison of Nephrology, Indiana University School of Medicine, Indianapolis, IN, USA; Roudebush VA Medical Center, Indianapolis, IN, USA
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30
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Montes de Oca A, Guerrero F, Martinez-Moreno JM, Madueño JA, Herencia C, Peralta A, Almaden Y, Lopez I, Aguilera-Tejero E, Gundlach K, Büchel J, Peter ME, Passlick-Deetjen J, Rodriguez M, Muñoz-Castañeda JR. Magnesium inhibits Wnt/β-catenin activity and reverses the osteogenic transformation of vascular smooth muscle cells. PLoS One 2014; 9:e89525. [PMID: 24586847 PMCID: PMC3934896 DOI: 10.1371/journal.pone.0089525] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 01/21/2014] [Indexed: 11/18/2022] Open
Abstract
Magnesium reduces vascular smooth muscle cell (VSMC) calcification in vitro but the mechanism has not been revealed so far. This work used only slightly increased magnesium levels and aimed at determining: a) whether inhibition of magnesium transport into the cell influences VSMC calcification, b) whether Wnt/β-catenin signaling, a key mediator of osteogenic differentiation, is modified by magnesium and c) whether magnesium can influence already established vascular calcification. Human VSMC incubated with high phosphate (3.3 mM) and moderately elevated magnesium (1.4 mM) significantly reduced VSMC calcification and expression of the osteogenic transcription factors Cbfa-1 and osterix, and up-regulated expression of the natural calcification inhibitors matrix Gla protein (MGP) and osteoprotegerin (OPG). The protective effects of magnesium on calcification and expression of osteogenic markers were no longer observed in VSMC cultured with an inhibitor of cellular magnesium transport (2-aminoethoxy-diphenylborate [2-APB]). High phosphate induced activation of Wnt/β-catenin pathway as demonstrated by the translocation of β-catenin into the nucleus, increased expression of the frizzled-3 gene, and downregulation of Dkk-1 gene, a specific antagonist of the Wnt/β-catenin signaling pathway. The addition of magnesium however inhibited phosphate-induced activation of Wnt/β-catenin signaling pathway. Furthermore, TRPM7 silencing using siRNA resulted in activation of Wnt/β-catenin signaling pathway. Additional experiments were performed to test the ability of magnesium to halt the progression of already established VSMC calcification in vitro. The delayed addition of magnesium decreased calcium content, down-regulated Cbfa-1 and osterix and up-regulated MGP and OPG, when compared with a control group. This effect was not observed when 2-APB was added. In conclusion, magnesium transport through the cell membrane is important to inhibit VSMC calcification in vitro. Inhibition of Wnt/β-catenin by magnesium is one potential intracellular mechanism by which this anti-calcifying effect is achieved.
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Affiliation(s)
- Addy Montes de Oca
- IMIBIC, Hospital Univ Reina Sofia, REDInRen, Cordoba, Spain
- Depto. Medicina y Cirugía Animal, University of Cordoba, Cordoba, Spain
| | - Fatima Guerrero
- IMIBIC, Hospital Univ Reina Sofia, REDInRen, Cordoba, Spain
- Depto. Medicina y Cirugía Animal, University of Cordoba, Cordoba, Spain
| | | | | | | | - Alan Peralta
- Depto. Medicina y Cirugía Animal, University of Cordoba, Cordoba, Spain
| | - Yolanda Almaden
- IMIBIC, Hospital Univ Reina Sofia, REDInRen, Cordoba, Spain
- Lipid and Atherosclerosis Unit, IMIBIC/Reina Sofia University Hospital/University of Cordoba, and CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Cordoba, Spain
| | - Ignacio Lopez
- Depto. Medicina y Cirugía Animal, University of Cordoba, Cordoba, Spain
| | | | | | - Janine Büchel
- Fresenius Medical Care Deutschland GmbH, Bad Homburg, Germany
| | - Mirjam E. Peter
- Fresenius Medical Care Deutschland GmbH, Bad Homburg, Germany
| | | | - Mariano Rodriguez
- IMIBIC, Hospital Univ Reina Sofia, REDInRen, Cordoba, Spain
- Servicio de Nefrologia, Hospital Univ Reina Sofia, REDInRen, Cordoba, Spain
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31
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Beazley KE, Reckard S, Nurminsky D, Lima F, Nurminskaya M. Two sides of MGP null arterial disease: chondrogenic lesions dependent on transglutaminase 2 and elastin fragmentation associated with induction of adipsin. J Biol Chem 2013; 288:31400-8. [PMID: 24036114 PMCID: PMC3829453 DOI: 10.1074/jbc.m113.495556] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 09/02/2013] [Indexed: 01/04/2023] Open
Abstract
Mutations in matrix Gla protein (MGP) have been correlated with vascular calcification. In the mouse model, MGP null vascular disease presents as calcifying cartilaginous lesions and mineral deposition along elastin lamellae (elastocalcinosis). Here we examined the mechanisms underlying both of these manifestations. Genetic ablation of enzyme transglutaminase 2 (TG2) in Mgp(-/-) mice dramatically reduced the size of cartilaginous lesions in the aortic media, attenuated calcium accrual more than 2-fold, and doubled longevity as compared with control Mgp(-/-) animals. Nonetheless, the Mgp(-/-);Tgm2(-/-) mice still died prematurely as compared with wild-type and retained the elastocalcinosis phenotype. This pathology in Mgp(-/-) animals was developmentally preceded by extensive fragmentation of elastic lamellae and associated with elevated serine elastase activity in aortic tissue and vascular smooth muscle cells. Systematic gene expression analysis followed by an immunoprecipitation study identified adipsin as the major elastase that is induced in the Mgp(-/-) vascular smooth muscle even in the TG2 null background. These results reveal a central role for TG2 in chondrogenic transformation of vascular smooth muscle and implicate adipsin in elastin fragmentation and ensuing elastocalcinosis. The importance of elastin calcification in MGP null vascular disease is highlighted by significant residual vascular calcification and mortality in Mgp(-/-);Tgm2(-/-) mice with reduced cartilaginous lesions. Our studies identify two potential therapeutic targets in vascular calcification associated with MGP dysfunction and emphasize the need for a comprehensive approach to this multifaceted disorder.
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Affiliation(s)
- Kelly E. Beazley
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, Maryland 21201
| | - Steven Reckard
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, Maryland 21201
| | - Dmitry Nurminsky
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, Maryland 21201
| | - Florence Lima
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, Maryland 21201
| | - Maria Nurminskaya
- From the Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, Maryland 21201
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Huang J, Huang H, Wu M, Li J, Xie H, Zhou H, Liao E, Peng Y. Connective tissue growth factor induces osteogenic differentiation of vascular smooth muscle cells through ERK signaling. Int J Mol Med 2013; 32:423-9. [PMID: 23722620 DOI: 10.3892/ijmm.2013.1398] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Accepted: 04/11/2013] [Indexed: 11/06/2022] Open
Abstract
Connective tissue growth factor (CTGF) plays an important role in the pathogenesis of atherosclerosis by promoting vascular smooth muscle cell (VSMC) growth, migration, apoptosis, adhesion and the secretion of matrix components. The osteogenic differentiation of VSMCs is essential in the development of vascular calcification. However, the role of CTGF in the transdifferentiation and calcification of VSMCs is unclear. In the present study, we examined whether CTGF stimulates VSMC transdifferentiation. Primary VSMCs were obtained from mouse thoracic aortas by enzymatic digestion and identified by immunostaining for smooth muscle specific α-actin antibody (α-SMA). VSMC calcification was induced by the addition of CTGF to the osteogenic mediaum containing 5-10% FBS in the presence of 0.25 mM ascorbic acid and 10 mM β-glycerophosphate for 14 days. Calcified cells were determined by Alizarin Red S staining. Our results revealed that CTGF induced the expression of several bone markers, including alkaline phosphatase (ALP), osteocalcin (OC), osteoprotegerin (OPG) and core-binding factor subunit α1 (Cbfα1)/runt-related transcription factor 2 (Runx2), as well as calcification. However, the inhibition of extracellular signal-regulated kinase (ERK) activity using the ERK-specific inhibitor, PD98059, blocked the induction of these proteins and VSMC calcification. Based on these data, we conclude that CTGF stimulates the transdifferentiation of VSMCs into osteoblasts and that the ERK signaling pathway appears to play a critical role in this process.
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Affiliation(s)
- Juan Huang
- Institute of Endocrinology and Metabolism, The Second Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
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Poggio P, Sainger R, Branchetti E, Grau JB, Lai EK, Gorman RC, Sacks MS, Parolari A, Bavaria JE, Ferrari G. Noggin attenuates the osteogenic activation of human valve interstitial cells in aortic valve sclerosis. Cardiovasc Res 2013; 98:402-10. [PMID: 23483047 DOI: 10.1093/cvr/cvt055] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
AIMS Aortic valve sclerosis (AVSc) is a hallmark of several cardiovascular conditions ranging from chronic heart failure and myocardial infarction to calcific aortic valve stenosis (AVS). AVSc, present in 25-30% of patients over 65 years of age, is characterized by thickening of the leaflets with marginal effects on the mechanical proprieties of the valve making its presentation asymptomatic. Despite its clinical prevalence, few studies have investigated the pathogenesis of this disease using human AVSc specimens. Here, we investigate in vitro and ex vivo BMP4-mediated transdifferentiation of human valve interstitial cells (VICs) towards an osteogenic-like phenotype in AVSc. METHODS AND RESULTS Human specimens from 60 patients were collected at the time of aortic valve replacement (AVS) or through the heart transplant programme (Controls and AVSc). We show that non-calcified leaflets from AVSc patients can be induced to express markers of osteogenic transdifferentiation and biomineralization through the combinatory effect of BMP4 and mechanical stimulation. We show that BMP4 antagonist Noggin attenuates VIC activation and biomineralization. Additionally, patient-derived VICs were induced to transdifferentiate using either cell culture or a Tissue Engineering (TE) Aortic Valve model. We determine that while BMP4 alone is not sufficient to induce osteogenic transdifferentiation of AVSc-derived cells, the combinatory effect of BMP4 and mechanical stretch induces VIC activation towards a phenotype typical of late calcified stage of the disease. CONCLUSION This work demonstrates, for the first time using AVSc specimens, that human sclerotic aortic valves can be induced to express marker of osteogenic-like phenotype typical of advanced severe aortic stenosis.
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Affiliation(s)
- Paolo Poggio
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Beazley KE, Eghtesad S, Nurminskaya MV. Quercetin attenuates warfarin-induced vascular calcification in vitro independently from matrix Gla protein. J Biol Chem 2013; 288:2632-40. [PMID: 23223575 PMCID: PMC3554930 DOI: 10.1074/jbc.m112.368639] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 11/14/2012] [Indexed: 12/20/2022] Open
Abstract
Warfarin can stimulate vascular calcification in vitro via activation of β-catenin signaling and/or inhibition of matrix Gla protein (MGP) carboxylation. Calcification was induced in vascular smooth muscle cells (VSMCs) with therapeutic levels of warfarin in normal calcium and clinically acceptable phosphate levels. Although TGF/BMP and PKA pathways are activated in calcifying VSMCs, pharmacologic analysis reveals that their activation is not contributory. However, β-catenin activity is important because inhibition of β-catenin with shRNA or bioflavonoid quercetin prevents calcification in primary human VSMCs, rodent aortic rings, and rat A10 VSMC line. In the presence of quercetin, reactivation of β-catenin using the glycogen synthase kinase-3β (GSK-3β) inhibitor LiCl restores calcium accumulation, confirming that quercetin mechanism of action hinges on inhibition of the β-catenin pathway. Calcification in VSMCs induced by 10 μm warfarin does not associate with reduced levels of carboxylated MGP, and inhibitory effects of quercetin do not involve induction of MGP carboxylation. Further, down-regulation of MGP by shRNA does not alter the effect of quercetin. These results suggest a new β-catenin-targeting strategy to prevent vascular calcification induced by warfarin and identify quercetin as a potential therapeutic in this pathology.
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Affiliation(s)
- Kelly E. Beazley
- From the Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Saman Eghtesad
- From the Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Maria V. Nurminskaya
- From the Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201
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Shroff R, Long DA, Shanahan C. Mechanistic insights into vascular calcification in CKD. J Am Soc Nephrol 2012; 24:179-89. [PMID: 23138485 DOI: 10.1681/asn.2011121191] [Citation(s) in RCA: 255] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular disease begins early in the course of renal decline and is a life-limiting problem in patients with CKD. The increased burden of cardiovascular disease is due, at least in part, to calcification of the vessel wall. The uremic milieu provides a perfect storm of risk factors for accelerated calcification, but elevated calcium and phosphate levels remain key to the initiation and progression of vascular smooth muscle cell calcification in CKD. Vascular calcification is a highly regulated process that involves a complex interplay between promoters and inhibitors of calcification and has many similarities to bone ossification. Here, we discuss current understanding of the process of vascular calcification, focusing specifically on the discrete and synergistic effects of calcium and phosphate in mediating vascular smooth muscle cell apoptosis, osteochondrocytic differentiation, vesicle release, calcification inhibitor expression, senescence, and death. Using our model of intact human vessels, factors initiating vascular calcification in vivo and the role of calcium and phosphate in driving accelerated calcification ex vivo are described. This work allows us to link clinical and basic research into a working theoretical model to explain the pathway of development of vascular calcification in CKD.
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Affiliation(s)
- Rukshana Shroff
- Nephro-Urology Unit, Great Ormond Street Hospital for Children and University College London Institute of Child Health, London, UK.
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36
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Martínez-Moreno JM, Muñoz-Castañeda JR, Herencia C, Oca AMD, Estepa JC, Canalejo R, Rodríguez-Ortiz ME, Perez-Martinez P, Aguilera-Tejero E, Canalejo A, Rodríguez M, Almadén Y. In vascular smooth muscle cells paricalcitol prevents phosphate-induced Wnt/β-catenin activation. Am J Physiol Renal Physiol 2012; 303:F1136-44. [PMID: 22874762 DOI: 10.1152/ajprenal.00684.2011] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present study investigates the differential effect of two vitamin D receptor agonists, calcitriol and paricalcitol, on human aortic smooth muscle cells calcification in vitro. Human vascular smooth muscle cells were incubated in a high phosphate (HP) medium alone or supplemented with either calcitriol 10(-8)M (HP + CTR) or paricalcitol 3·10(-8) M (HP + PC). HP medium induced calcification, which was associated with the upregulation of mRNA expression of osteogenic factors such as bone morphogenetic protein 2 (BMP2), Runx2/Cbfa1, Msx2, and osteocalcin. In these cells, activation of Wnt/β-catenin signaling was evidenced by the translocation of β-catenin into the nucleus and the increase in the expression of direct target genes as cyclin D1, axin 2, and VCAN/versican. Addition of calcitriol to HP medium (HP + CTR) further increased calcification and also enhanced the expression of osteogenic factors together with a significant elevation of nuclear β-catenin levels and the expression of cyclin D1, axin 2, and VCAN. By contrast, the addition of paricalcitol (HP + PC) not only reduced calcification but also downregulated the expression of BMP2 and other osteoblastic phenotype markers as well as the levels of nuclear β-catenin and the expression of its target genes. The role of Wnt/β-catenin on phosphate- and calcitriol-induced calcification was further demonstrated by the inhibition of calcification after addition of Dickkopf-related protein 1 (DKK-1), a specific natural antagonist of the Wnt/β-catenin signaling pathway. In conclusion, the differential effect of calcitriol and paricalcitol on vascular calcification appears to be mediated by a distinct regulation of the BMP and Wnt/β-catenin signaling pathways.
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Affiliation(s)
- Julio M Martínez-Moreno
- Unidad de Investigacion, IMIBIC, Hospital Reina Sofía, Avda. Menéndez Pidal s/n, Córdoba, Spain
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Beazley KE, Deasey S, Lima F, Nurminskaya MV. Transglutaminase 2-mediated activation of β-catenin signaling has a critical role in warfarin-induced vascular calcification. Arterioscler Thromb Vasc Biol 2011; 32:123-30. [PMID: 22034513 DOI: 10.1161/atvbaha.111.237834] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Accumulating experimental evidence implicates β-catenin signaling and enzyme transglutaminase 2 (TG2) in the progression of vascular calcification, and our previous studies have shown that TG2 can activate β-catenin signaling in vascular smooth muscle cells (VSMCs). Here we investigated the role of the TG2/β-catenin signaling axis in vascular calcification induced by warfarin. METHODS AND RESULTS Warfarin-induced calcification in rat A10 VSMCs is associated with the activation of β-catenin signaling and is independent of oxidative stress. The canonical β-catenin inhibitor Dkk1, but not the Wnt antagonist Wif-1, prevents warfarin-induced activation of β-catenin, calcification, and osteogenic transdifferentiation in VSMCs. TG2 expression and activity are increased in warfarin-treated cells, in contrast to canonical Wnt ligands. Vascular cells with genetically or pharmacologically reduced TG2 activity fail to activate β-catenin in response to warfarin. Moreover, warfarin-induced calcification is significantly reduced on the background of attenuated TG2 both in vitro and in vivo. CONCLUSIONS TG2 is a critical mediator of warfarin-induced vascular calcification that acts through the activation of β-catenin signaling in VSMCs. Inhibition of canonical β-catenin pathway or TG2 activity prevents warfarin-regulated calcification, identifying the TG2/β-catenin axis as a novel therapeutic target in vascular calcification.
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Affiliation(s)
- Kelly E Beazley
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, 108 N Greene St, Baltimore, MD 21201, USA
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Hong YJ, Choi YW, Myung KB, Choi HY. The Immunohistochemical Patterns of Calcification-related Molecules in the Epidermis and Dermis of the Zebrafish (Danio rerio). Ann Dermatol 2011; 23:299-303. [PMID: 21909199 PMCID: PMC3162258 DOI: 10.5021/ad.2011.23.3.299] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2010] [Revised: 02/21/2011] [Accepted: 02/23/2011] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The scales of bony fish represent a significant reservoir of calcium and calcification of the elasmoid scale is known to be associated with deposition of mineral crystals from the epidermis to dermis. However, little is known about the exact mechanisms of calcium deposition, mobilization and regeneration occurring in the zebrafish skin. OBJECTIVE The purpose of this study was to investigate the expression of calcification-related molecular mediators in both the epidermis and dermis of the zebrafish (Danio rerio), using immunohistochemical study. METHODS We examined the skin of zebrafish in four populations of different ages (i.e. 20 days post-fertilization (dpf), 35 dpf, 50 dpf, and the adult zebrafish), using several immunohistochemical markers, including bone morphogenetic protein 4 (BMP-4), β-catenin, osteocalcin, osteopontin and osteonectin. RESULTS BMP-4, osteopontin and osteonectin were moderately expressed in the epidermis of zebrafish after 35 dpf. Also, some of the cells in the upper dermis showed strong positivity for BMP-4, osteocalcin, osteopontin and osteonetin. CONCLUSION Our results suggest that BMP-4, osteocalcin, osteopontin and osteonectin may play a role in the process of calcification of the elasmoid scale.
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Affiliation(s)
- Yeon Ju Hong
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
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Reyes-García R, Rozas-Moreno P, Muñoz-Torres M. Enfermedad cardiovascular y metabolismo óseo. ACTA ACUST UNITED AC 2011; 58:353-9. [DOI: 10.1016/j.endonu.2011.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 05/06/2011] [Accepted: 05/10/2011] [Indexed: 10/18/2022]
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Salari P, Abdollahi M. A Comprehensive Review of the Shared Roles of Inflammatory Cytokines in Osteoporosis and Cardiovascular Diseases as Two Common Old People Problem; Actions Toward Development of New Drugs. INT J PHARMACOL 2011. [DOI: 10.3923/ijp.2011.552.567] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Eastell R, Newman C, Crossman DC. Cardiovascular disease and bone. Arch Biochem Biophys 2010; 503:78-83. [DOI: 10.1016/j.abb.2010.06.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2010] [Revised: 06/05/2010] [Accepted: 06/08/2010] [Indexed: 11/15/2022]
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Prosdocimo DA, Wyler SC, Romani AM, O'Neill WC, Dubyak GR. Regulation of vascular smooth muscle cell calcification by extracellular pyrophosphate homeostasis: synergistic modulation by cyclic AMP and hyperphosphatemia. Am J Physiol Cell Physiol 2010; 298:C702-13. [PMID: 20018951 PMCID: PMC2838579 DOI: 10.1152/ajpcell.00419.2009] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Accepted: 12/14/2009] [Indexed: 11/22/2022]
Abstract
Vascular calcification is a multifaceted process involving gain of calcification inducers and loss of calcification inhibitors. One such inhibitor is inorganic pyrophosphate (PP(i)), and regulated generation and homeostasis of extracellular PP(i) is a critical determinant of soft-tissue mineralization. We recently described an autocrine mechanism of extracellular PP(i) generation in cultured rat aortic vascular smooth muscle cells (VSMC) that involves both ATP release coupled to the ectophosphodiesterase/pyrophosphatase ENPP1 and efflux of intracellular PP(i) mediated or regulated by the plasma membrane protein ANK. We now report that increased cAMP signaling and elevated extracellular inorganic phosphate (P(i)) act synergistically to induce calcification of these VSMC that is correlated with progressive reduction in ability to accumulate extracellular PP(i). Attenuated PP(i) accumulation was mediated in part by cAMP-dependent decrease in ANK expression coordinated with cAMP-dependent increase in expression of TNAP, the tissue nonselective alkaline phosphatase that degrades PP(i). Stimulation of cAMP signaling did not alter ATP release or ENPP1 expression, and the cAMP-induced changes in ANK and TNAP expression were not sufficient to induce calcification. Elevated extracellular P(i) alone elicited only minor calcification and no significant changes in ANK, TNAP, or ENPP1. In contrast, combined with a cAMP stimulus, elevated P(i) induced decreases in the ATP release pathway(s) that supports ENPP1 activity; this resulted in markedly reduced rates of PP(i) accumulation that facilitated robust calcification. Calcified VSMC were characterized by maintained expression of multiple SMC differentiation marker proteins including smooth muscle (SM) alpha-actin, SM22alpha, and calponin. Notably, addition of exogenous ATP (or PP(i) per se) rescued cAMP + phosphate-treated VSMC cultures from progression to the calcified state. These observations support a model in which extracellular PP(i) generation mediated by both ANK- and ATP release-dependent mechanisms serves as a critical regulator of VSMC calcification.
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Affiliation(s)
- Domenick A Prosdocimo
- Dept. of Physiology and Biophysics, Case Western Reserve Univ., School of Medicine, 2109 Adelbert Rd., Cleveland, OH 44106, USA
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Hineno A, Kinoshita T, Kinoshita M, Arakura F, Naito KS, Shimojima Y, Matsuda M, Yoshida K, Ikeda SI. Calciphylaxis as a Catastrophic Complication in a Patient with POEMS Syndrome. Case Rep Neurol 2009; 1:47-53. [PMID: 20847836 PMCID: PMC2940264 DOI: 10.1159/000259906] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Calciphylaxis is a vascular calcification-cutaneous necrosis syndrome, usually seen in patients with end-stage renal disease and secondary hyperparathyroidism. We report a 57-year-old polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes (POEMS) syndrome patient complicated with extensive skin ulcers due to calciphylaxis. He first noted a painful cutaneous ulcer on his left thigh, and then skin lesions rapidly worsened, resulting in multiple intractable ulcers with gangrene on his legs and trunk in a few months. Serum vascular endothelial growth factor (VEGF) was markedly elevated. Biopsy samples from his skin ulcers showed the deposition of calcium in the medial layer of cutaneous vessels, this finding being compatible with calciphylaxis. This is the second reported case with POEMS syndrome complicated with calciphylaxis. Both patients had no evidence of renal failure, hyperparathyroidism, or clotting disorders. The pathogenic link between POEMS syndrome and calciphylaxis is still unclear, but VEGF is known to regulate vascular calcification, in cooperation with bone morphogenetic proteins. Further, corticosteroid and several proinflammatory cytokines activate nuclear factor-κB pathway, known as the final common pathway leading to vascular calcification. Taken together, we consider that POEMS syndrome can be an independent risk condition for calciphylaxis.
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Affiliation(s)
- Akiyo Hineno
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
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Panizo S, Cardus A, Encinas M, Parisi E, Valcheva P, López-Ongil S, Coll B, Fernandez E, Valdivielso JM. RANKL increases vascular smooth muscle cell calcification through a RANK-BMP4-dependent pathway. Circ Res 2009; 104:1041-8. [PMID: 19325147 DOI: 10.1161/circresaha.108.189001] [Citation(s) in RCA: 177] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Vascular calcification commonly associated with several pathologies and it has been suggested to be similar to bone mineralization. The axis RANKL-OPG (receptor activator of nuclear factor kappaB ligand-osteoprotegerin) finely controls bone turnover. RANKL has been suggested to increase vascular calcification, but direct evidence is missing. Thus, in the present work, we assess the effect of RANKL in vascular smooth muscle cell (VSMC) calcification. VSMCs incubated with RANKL showed a dose-dependent increase in calcification, which was abolished by coincubation with OPG. To test whether the effect was mediated by signaling to its receptor, knockdown of RANK was accomplished by short hairpin (sh)RNA. Indeed, cells lacking RANK showed no increases in vascular calcification when incubated with RANKL. To further elucidate the mechanism by which RANK activation increases calcification, we blocked both nuclear factor (NF)-kappaB activation pathways. Only IKKalpha inactivation inhibited calcification, pointing to an involvement of the alternative NF-kappaB activation pathway. Furthermore, RANKL addition increased bone morphogenetic protein (BMP)4 expression in VSMCs, and that increase disappeared in cells lacking RANK or IKKalpha. The increase in calcification was also blunted by Noggin, pointing to a mediation of BMP4 in the calcification induced by RANKL. Furthermore, in an in vivo model, the increase in vascular calcium content was parallel to an increase in RANKL and BMP4 expression, which was localized in calcified areas. However, blood levels of the ratio RANKL/OPG did not change. We conclude that RANKL increases vascular smooth muscle cell calcification by binding to RANK and increasing BMP4 production through activation of the alternative NF-kappaB pathway.
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Affiliation(s)
- Sara Panizo
- Laboratorio de Investigación HUAV-UDL, Hospital Universitari Arnau de Vilanova, Rovira Roure 80, Lleida, Spain
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Anagnostis P, Karagiannis A, Kakafika AI, Tziomalos K, Athyros VG, Mikhailidis DP. Atherosclerosis and osteoporosis: age-dependent degenerative processes or related entities? Osteoporos Int 2009; 20:197-207. [PMID: 18509713 DOI: 10.1007/s00198-008-0648-5] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Accepted: 04/30/2008] [Indexed: 11/26/2022]
Abstract
Osteoporosis and atherosclerosis, two multifactorial and degenerative entities, are major public health problems. These diseases accompany the aging process and share common risk factors. Furthermore, several common pathophysiological factors have been suggested. These include similar molecular pathways involving bone and vascular mineralization, estrogen deficiency, parathyroid hormone, homocysteine, lipid oxidation products, inflammatory process, as well as vitamin D and K. Moreover, the use of statins, biphosphonates, beta-blockers and experimental dual-purpose therapies based on the biological linkage of the above entities may simultaneously benefit bone loss and vascular disease. This review considers a potential link between osteoporosis and atherosclerosis beyond aging. These common factors may lead to appropriate treatment strategies.
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Affiliation(s)
- P Anagnostis
- Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippokration Hospital, Greece
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Faverman L, Mikhaylova L, Malmquist J, Nurminskaya M. Extracellular transglutaminase 2 activates beta-catenin signaling in calcifying vascular smooth muscle cells. FEBS Lett 2008; 582:1552-7. [PMID: 18405667 DOI: 10.1016/j.febslet.2008.03.053] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Revised: 03/28/2008] [Accepted: 03/31/2008] [Indexed: 02/03/2023]
Abstract
Accumulation of transglutaminase 2 (TG2) is often associated with mineral deposits in vasculature. Here, we demonstrate that purified TG2 stimulated a 3-fold increase in matrix mineralization and up-regulation of osteoblastic markers in cultured primary vascular smooth muscle cells (VSMCs). Extracellular TG2 interacts with the low density lipoprotein related-protein 5 receptor and activates beta-catenin signaling in VSMCs. These results suggest that TG2 may promote vascular calcification by activating the beta-catenin signaling pathway.
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Affiliation(s)
- Lidia Faverman
- Tufts University, Department of Anatomy and Cell Biology, 136 Harrison Avenue, Boston, MA 02111, United States
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Nguyen TQ, Goldschmeding R. Bone Morphogenetic Protein-7 and Connective Tissue Growth Factor: Novel Targets for Treatment of Renal Fibrosis? Pharm Res 2008; 25:2416-26. [DOI: 10.1007/s11095-008-9548-9] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2007] [Accepted: 01/28/2008] [Indexed: 12/11/2022]
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