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https://www.readbyqxmd.com/read/29652803/hypoxia-supports-epicardial-cell-differentiation-in-vascular-smooth-muscle-cells-through-the-activation-of-the-tgf%C3%AE-pathway
#1
Jiayi Tao, Joey V Barnett, Michiko Watanabe, Diana Ramírez-Bergeron
Epicardium-derived cells (EPDCs) are an important pool of multipotent cardiovascular progenitor cells. Through epithelial-to-mesenchymal-transition (EMT), EPDCs invade the subepicardium and myocardium and further differentiate into several cell types required for coronary vessel formation. We previously showed that epicardial hypoxia inducible factor (HIF) signaling mediates the invasion of vascular precursor cells critical for patterning the coronary vasculature. Here, we examine the regulatory role of hypoxia (1% oxygen) on EPDC differentiation into vascular smooth muscle cells (VSMCs)...
April 13, 2018: Journal of Cardiovascular Development and Disease
https://www.readbyqxmd.com/read/29627363/nesfatin-1-functions-as-a-switch-for-phenotype-transformation-and-proliferation-of-vsmcs-in-hypertensive-vascular-remodeling
#2
Qing-Bo Lu, Hui-Ping Wang, Zi-Han Tang, Han Cheng, Qiong Du, Yuan-Ben Wang, Wu-Bing Feng, Ke-Xue Li, Wei-Wei Cai, Li-Ying Qiu, Hai-Jian Sun
The phenotypic transformation from differentiated to dedifferentiated vascular smooth muscle cells (VSMCs) plays a crucial role in VSMC proliferation and vascular remodeling in many cardiovascular diseases including hypertension. Nesfatin-1, a multifunctional adipocytokine, is critically involved in the regulation of blood pressure. However, it is still largely unexplored whether nesfatin-1 is a potential candidate in VSMC phenotypic switch and proliferation in hypertension. Experiments were carried out in Wistar-Kyoto rats (WKY), spontaneously hypertensive rats (SHR), human VSMCs and primary rat aortic VSMCs...
April 5, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29563538/ucma-grp-inhibits-phosphate-induced-vascular-smooth-muscle-cell-calcification-via-smad-dependent-bmp-signalling
#3
Brecht A Willems, Malgorzata Furmanik, Marjolein M J Caron, Martijn L L Chatrou, Dennis H M Kusters, Tim J M Welting, Michael Stock, Marta S Rafael, Carla S B Viegas, Dina C Simes, Cees Vermeer, Chris P M Reutelingsperger, Leon J Schurgers
Vascular calcification (VC) is the process of deposition of calcium phosphate crystals in the blood vessel wall, with a central role for vascular smooth muscle cells (VSMCs). VC is highly prevalent in chronic kidney disease (CKD) patients and thought, in part, to be induced by phosphate imbalance. The molecular mechanisms that regulate VC are not fully known. Here we propose a novel role for the mineralisation regulator Ucma/GRP (Upper zone of growth plate and Cartilage Matrix Associated protein/Gla Rich Protein) in phosphate-induced VSMC calcification...
March 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29558369/uhrf1-epigenetically-orchestrates-smooth-muscle-cell-plasticity-in-arterial-disease
#4
Leonardo Elia, Paolo Kunderfranco, Pierluigi Carullo, Marco Vacchiano, Floriana Maria Farina, Ignacio Fernando Hall, Stefano Mantero, Cristina Panico, Roberto Papait, Gianluigi Condorelli, Manuela Quintavalle
Adult vascular smooth muscle cells (VSMCs) possess the peculiar ability to de-differentiate in response to extracellular cues, such as vascular damage and inflammation. De-differentiated VSMCs are proliferative, migratory, and have decreased contractile capacity. VSMC dedifferentiation contributes not only to vascular repair, but also to cardiovascular pathologies, such as intimal hyperplasia/restenosis in coronary artery or peripheral vascular diseases and arterial aneurysm. We here demonstrate the role of ubiquitin-like, containing PHD and RING finger domains, 1 (UHRF1) as an epigenetic master regulator of VSMC plasticity...
March 20, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29547702/inhibition-of-enzymes-involved-in-collagen-cross-linking-reduces-vascular-smooth-muscle-cell-calcification
#5
Eva Jover, Ana Silvente, Francisco Marín, José Martínez-González, Mar Orriols, Carlos M Martinez, Carmen María Puche, Mariano Valdés, Cristina Rodriguez, Diana Hernández-Romero
Vascular smooth muscle cells (VSMCs) transdifferentiate into osteoblast-like cells during vascular calcification, inducing active remodeling and calcification of the extracellular matrix (ECM). Intracellular and extracellular enzymes, such as lysyl hydroxylase 1 (PLOD1) and lysyl oxidase (LOX), contribute to ECM maturation and stabilization. We assessed the contribution of these enzymes to hyperphosphatemia (HPM)-induced calcification. Human and murine VSMCs were differentiated into functional osteoblast-like cells by HPM conditioning...
March 16, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29538087/hsa-mir-320d-and-hsa-mir-582-mirna-biomarkers-of-aortic-dissection-regulate-apoptosis-of-vascular-smooth-muscle-cells
#6
Hong Shen, Shuyang Lu, Lili Dong, Yuan Xue, Chenling Yao, Chaoyang Tong, Chunsheng Wang, Xianhong Shu
Abnormal expression of microRNAs (miRNAs) has been associated with aortic dissection (AD). Next generation sequencing was performed to identify the differentially expressed miRNAs in aortic tissue samples between AD and non-diseased individuals. Selected miRNAs which showed significant variation between the two groups, were then transfected into human aortic vascular smooth muscle cells (HA-VSMC), and assessed for effects on cell migration and induced apoptosis. The changes in gene expression pattern in HA-VSMC cells transfected with the miRNAs were also investigated...
March 9, 2018: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29514202/role-of-smooth-muscle-cells-in-vascular-calcification-implications-in-atherosclerosis-and-arterial-stiffness
#7
Andrew L Durham, Mei Y Speer, Marta Scatena, Cecilia M Giachelli, Catherine M Shanahan
Vascular calcification is associated with a significant increase in all-cause mortality and atherosclerotic plaque rupture. Calcification has been determined to be an active process driven in part by vascular smooth muscle cell (VSMC) transdifferentiation within the vascular wall. Historically, VSMC phenotype switching has been viewed as binary, with the cells able to adopt a physiological contractile phenotype or an alternate 'synthetic' phenotype in response to injury. More recent work, including lineage tracing has however revealed that VSMCs are able to adopt a number of phenotypes, including calcific (osteogenic, chondrocytic, and osteoclastic), adipogenic, and macrophagic phenotypes...
March 15, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29484366/bag3-promotes-the-phenotypic-transformation-of-primary-rat-vascular-smooth-muscle-cells-via-trail
#8
Yao Fu, Ye Chang, Shuang Chen, Yuan Li, Yintao Chen, Guozhe Sun, Shasha Yu, Ning Ye, Chao Li, Yingxian Sun
Under normal physiological condition, the mature vascular smooth muscle cells (VSMCs) show differentiated phenotype. In response to various environmental stimuluses, VSMCs convert from the differentiated phenotype to dedifferentiated phenotype characterized by the increased ability of proliferation/migration and the reduction of contractile ability. The phenotypic transformation of VSMCs played an important role in atherosclerosis. Both Bcl-2-associated athanogene 3 (BAG3) and tumor necrosis factor-related apopt-osis inducing ligand (TRAIL) involved in apoptosis...
February 14, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29483881/phenotypic-modulation-of-cultured-primary-human-aortic-vascular-smooth-muscle-cells-by-uremic-serum
#9
Violeta Cazaña-Pérez, Pilar Cidad, Javier Donate-Correa, Ernesto Martín-Núñez, José R López-López, M Teresa Pérez-García, Teresa Giraldez, Juan F Navarro-González, Diego Alvarez de la Rosa
Patients with chronic kidney disease (CKD) have a markedly increased incidence of cardiovascular disease (CVD). The high concentration of circulating uremic toxins and alterations in mineral metabolism and hormone levels produce vascular wall remodeling and significant vascular damage. Medial calcification is an early vascular event in CKD patients and is associated to apoptosis or necrosis and trans-differentiation of vascular smooth muscle cells (VSMC) to an osteogenic phenotype. VSMC obtained from bovine or rat aorta and cultured in the presence of increased inorganic phosphate (Pi) have been extensively used to study these processes...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29436118/cortistatin-inhibits-arterial-calcification-in-rats-via-gsk3%C3%AE-%C3%AE-catenin-and-pkc-signaling-but-not-jnk-signaling
#10
Yue Liu, Fang Lin, Yu Fu, Wenjia Chen, Wenxiu Liu, Jinyu Chi, Xiaohui Zhang, Xinhua Yin
AIM: Cortistatin (CST) is a newly discovered endogenous active peptide that exerts protective effects on the cardiovascular system. However, the relationship between CST and aortic calcification and the underlying mechanism remain obscure. Therefore, we investigated effects of CST on aortic calcification and its signaling pathways. METHODS: Calcium content and alkaline phosphatase (ALP) activity were measured using the o-cresolphthalein colorimetric method and ALP assay kit, respectively...
February 13, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29433109/pathogenesis-of-aortic-wall-complications-in-marfan-syndrome
#11
Nimrat Grewal, Adriana C Gittenberger-de Groot
BACKGROUND: Patients with Marfan (MFS) syndrome and patients with a bicuspid aortic valve (BAV) are more prone to develop aortic dilation and dissection compared to persons with a tricuspid aortic valve (TAV). To elucidate potential common as well as distinct pathways of clinical relevance, we compared the histopathological substrates of aortic pathology. PATIENT AND METHODS: Ascending aortic wall specimen were divided in five groups: BAV (n=36) and TAV (n=23) without and with dilation and non-dilated MFS (n=8)...
February 2, 2018: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/29415538/laminaria-japonica-polysaccharide-inhibits-vascular-calcification-via-preventing-osteoblastic-differentiation-of-vascular-smooth-muscle-cells
#12
Xue-Ying Li, Qiang-Ming Li, Qing Fang, Xue-Qiang Zha, Panlihua Panlihua, Jian-Ping Luo
This study aimed to investigate the effect and underlying mechanism of a purified Laminaria japonica polysaccharide (LJP61A) on preventing vascular calcification (VC). In adenine-induced chronic renal failure (CRF) mice VC model and β-glycerophosphate (β-GP)-induced vascular smooth muscle cells (VSMC) calcification model, LJP61A was found to significantly inhibit VC phenotypes as determined by biochemical analysis, von Kossa, alizarin red and immunohistochemical staining. Meanwhile, LJP61A remarkably up-regulated the mRNA levels of VSMC related markers and down-regulated the mRNA levels of sodium-dependent phosphate cotransporter Pit-1...
February 8, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29402827/expanded-haemodialysis-therapy-of-chronic-haemodialysis-patients-prevents-calcification-and-apoptosis-of-vascular-smooth-muscle-cells-in-vitro
#13
Kevin Willy, Matthias Girndt, Jakob Voelkl, Roman Fiedler, Peter Martus, Markus Storr, Ralf Schindler, Daniel Zickler
BACKGROUND: Vascular calcification is a common phenomenon in patients with chronic kidney disease and strongly associated with increased cardiovascular mortality. Vascular calcification is an active process mediated in part by inflammatory processes in vascular smooth muscle cells (VSMC). These could be modified by the insufficient removal of proinflammatory cytokines through conventional high-flux (HF) membranes. Recent trials demonstrated a reduction of inflammation in VSMC by use of dialysis membranes with a higher and steeper cut-off...
December 22, 2017: Blood Purification
https://www.readbyqxmd.com/read/29362439/deletion-of-dgcr8-in-vsmcs-of-adult-mice-results-in-loss-of-vascular-reactivity-reduced-blood-pressure-and-neointima-formation
#14
Yanan Zou, Zixuan Chen, Brett L Jennings, Guannan Zhao, Qingqing Gu, Anindya Bhattacharya, Yan Cui, Bo Yu, Kafait U Malik, Junming Yue
DiGeorge syndrome chromosomal region 8 (DGCR8), a double-stranded-RNA-binding protein, participates in the miRNA biogenesis pathway and contributes to miRNA maturation by interacting with the RNAase III enzyme Drosha in cell nuclei. To investigate the role of DGCR8 in vascular smooth muscle cells (VSMCs) at the postnatal stages, we generated tamoxifen-inducible VSMC specific knockout (iKO) mice by crossing DGCR8loxp/loxp with VSMC specific tamoxifen-inducible Cre transgenic mice SMA-Cre-ERT2 . DGCR8iKO mice display reduced body weight one month following tamoxifen treatment and died around 3 months...
January 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29361366/physiologic-levels-of-resistin-induce-a-shift-from-proliferation-to-apoptosis-in-macrophage-and-vsmc-co-culture
#15
Mary C Zuniga, Gayatri Raghuraman, Wei Zhou
BACKGROUND: Resistin, an adipokine with inflammatory properties, has been associated with plaque vulnerability. Vascular smooth muscle cells and macrophages are the major cellular components in advanced atherosclerotic plaques and interdependently affect plaque stability. The purpose of this study was to examine the effects of resistin on the interactions of vascular smooth muscle cells and macrophages using co-culture systems. METHODS: Human monocytes were differentiated into macrophages...
April 2018: Surgery
https://www.readbyqxmd.com/read/29310814/microarray-expression-profile-analysis-of-long-non-coding-rnas-in-thoracic-aortic-aneurysm
#16
Yang Li, Nan Yang
Thoracic aortic aneurysm (TAA) is a highly lethal vascular disease. Long non-coding RNAs (lncRNAs) are newly discovered as a regulator of protein genes and play critical roles in cardiovascular physio-pathological processes. However, there were a few studies looking at lncRNAs in TAA. In this study, we profiled differential expression of lncRNAs between TAA (TAA group, N = 6) and normal thoracic aorta (control group, n = 6) by third-generation lncRNA microarray. We identified 1352 up-regulated and 1624 down-regulated lncRNAs with differential expression (log fold-change > 2...
January 2018: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29246895/mirna-22-is-a-novel-mediator-of-vascular-smooth-muscle-cell-phenotypic-modulation-and-neointima-formation
#17
Feng Yang, Qishan Chen, Shiping He, Mei Yang, Eithne Margaret Maguire, Weiwei An, Tayyab Adeel Afzal, Le Anh Luong, Li Zhang, Qingzhong Xiao
Background -MicroRNA-22 (miR-22) has recently been reported to play a regulatory role during vascular smooth muscle cell (VSMC) differentiation from stem cells, but little is known about its target genes and related pathways in mature VSMC phenotypic modulation or its clinical implication in neointima formation following vascular injury. Methods -We applied wire-injury mouse model as well as local delivery of AgomiR-22 or miR-22 inhibitor to explore the therapeutic potential of miR-22 in vascular diseases. Furthermore, normal and diseased human femoral arteries were harvested and various in vivo , ex vivo , and in vitro models of VSMC phenotype switching were conducted to examine miR-22 expression during VSMC phenotype switching...
December 15, 2017: Circulation
https://www.readbyqxmd.com/read/29238011/plaque-calcification-during-atherosclerosis-progression-and-regression
#18
Atsushi Shioi, Yuji Ikari
Plaque calcification develops by the inflammation-dependent mechanisms involved in progression and regression of atherosclerosis. Macrophages can undergo two distinct polarization states, that is, pro-inflammatory M1 phenotype in progression and anti-inflammatory M2 phenotype in regression. In plaque progression, predominant M1 macrophages promote the initial calcium deposition within the necrotic core of the lesions, called as microcalcification, through not only vesicle-mediated mineralization as the result of apoptosis of macrophages and vascular smooth muscle cells (VSMCs), but also VSMC differentiation into early phase osteoblasts...
December 12, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/29232926/differential-effects-of-seh-inhibitors-on-the-proliferation-and-migration-of-vascular-smooth-muscle-cells
#19
Hyo Seon Kim, Sang Kyum Kim, Keon Wook Kang
Epoxyeicosatrienoic acid (EET) is a cardioprotective metabolite of arachidonic acid. It is known that soluble epoxide hydrolase (sEH) is involved in the metabolic degradation of EET. The abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) play important roles in the pathogenesis of atherosclerosis and restenosis. Thus, the present study investigated the effects of the sEH inhibitor 12-(((tricyclo(3.3.1.13,7)dec-1-ylamino)carbonyl)amino)-dodecanoic acid (AUDA) on platelet-derived growth factor (PDGF)-induced proliferation and migration in rat VSMCs...
December 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29228352/tumour-necrosis-factor-alpha-in-uraemic-serum-promotes-osteoblastic-transition-and-calcification-of-vascular-smooth-muscle-cells-via-extracellular-signal-regulated-kinases-and-activator-protein-1-c-fos-mediated-induction-of-interleukin-6-expression
#20
Daniel Zickler, Christian Luecht, Kevin Willy, Lei Chen, Janusz Witowski, Matthias Girndt, Roman Fiedler, Markus Storr, Julian Kamhieh-Milz, Janosch Schoon, Sven Geissler, Olle Ringdén, Ralf Schindler, Guido Moll, Duska Dragun, Rusan Catar
Background: Vascular calcification is enhanced in uraemic chronic haemodialysis patients, likely due to the accumulation of midsize uraemic toxins, such as interleukin 6 (IL-6) and tumor necrosis factor-alpha (TNF-α). Here we have assessed the impact of uraemia on vascular smooth muscle cell (VSMC) calcification and examined the role of IL-6 and TNF-α as possible mediators and, most importantly, its underlying signalling pathway in VSMCs. Methods: VSMCs were incubated with samples of uraemic serum obtained from patients treated with haemodialysis for renal failure in the Permeability Enhancement to Reduce Chronic Inflammation-I clinical trial...
December 8, 2017: Nephrology, Dialysis, Transplantation
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