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https://www.readbyqxmd.com/read/27936392/rutin-protects-endothelial-dysfunction-by-disturbing-nox4-and-ros-sensitive-nlrp3-inflammasome
#1
Wei Wang, Qiu-Hong Wu, Yong Sui, Yan Wang, Xin Qiu
High glucose induced endothelial dysfunction is blamed for initiation of vascular complication in Type 2 diabetes mellitus. Rutin has been described in possessing comprehensive pharmacological activities, but the mechanism involved in endothelial protection through regulating oxidative stress and damage is still ambiguous. In the present study, rutin was evaluated in high glucose stimulated human umbilical vein endothelial cells (HUVECs) and high glucose diet-treated SD rats were applied to explored the molecular mechanism in rutin counteracting oxidative stress and damage...
December 6, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27935545/effects-of-different-components-of-the-extracellular-matrix-on-endothelialization
#2
A Krüger-Genge, R Fuhrmann, F Jung, R P Franke
The endothelialisation of cardiovascular prostheses is known to improve their haemocompatibility. As such body-foreign materials often do not endothelialize spontaneously. A lot of in vitro studies are ongoing how endothelialisation of biomaterials can be improved. In this study the influence of different components of a tissue-typical extracellular matrix (ECM) like laminin, fibronectin or gelatin on the formation of an endothelial cell monolayer and on the shear resistance of adherent cells on these substrates was studied...
December 8, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27932866/effect-of-peritoneal-dialysis-fluid-containing-osmo-metabolic-agents-on-human-endothelial-cells
#3
Mario Bonomini, Sara Di Silvestre, Pamela Di Tomo, Natalia Di Pietro, Domitilla Mandatori, Lorenzo Di Liberato, Vittorio Sirolli, Francesco Chiarelli, Cesare Indiveri, Assunta Pandolfi, Arduino Arduini
BACKGROUND: The use of glucose as the only osmotic agent in peritoneal dialysis (PD) solutions (PDSs) is believed to exert local (peritoneal) and systemic detrimental actions, particularly in diabetic PD patients. To improve peritoneal biocompatibility, we have developed more biocompatible PDSs containing xylitol and carnitine along with significantly less amounts of glucose and have tested them in cultured Human Vein Endothelial Cells (HUVECs) obtained from the umbilical cords of healthy (C) and gestational diabetic (GD) mothers...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27930983/sargassum-fusiforme-polysaccharides-inhibit-vegf-a-related-angiogenesis-and-proliferation-of-lung-cancer-in-vitro-and-in-vivo
#4
Huiling Chen, Ling Zhang, Xiange Long, Peifei Li, Shengcan Chen, Wei Kuang, Junming Guo
Sargassum fusiforme (Harv.) is a brown alga belonging to the Sargasaceae family. The Sargassum fusiforme polysaccharides (SFPS) have demonstrated good anti-tumor and immunomodulatory activity. However, the underlying mechanisms of its anti-tumorigenesis, especially the anti-angiogenic activity is yet to be established. In the present study, we attempted to determine the effects of SFPS on the human lung adenocarcinoma SPC-A-1 cells and its xenograft model. The results showed that SFPS provides a concentration-dependent inhibition of SPC-A-1 cell proliferation in in vitro and the tumor growth in in vivo studies...
December 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27925633/shock-wave-enhances-angiogenesis-through-vegfr2-activation-and-recycling
#5
Tien-Hung Huang, Cheuk-Kwan Sun, Yi-Ling Chen, Ching-Jen Wang, Tsung-Cheng Yin, Mel S Lee, Hon-Kan Yip
Although low-energy shock wave (SW) is adopted to treat ischemic diseases because of its pro-angiogenic properties, the underlying mechanism remains unclear. This study aimed at testing whether SW-induced angiogenesis may be through endothelial vascular endothelial growth factor receptor 2 (VEGFR2) signaling and trafficking. Phosphorylation of VEGFR2-Akt-eNOS axis and production of nitric oxide (NO) were determined in human umbilical vein endothelial cells (HUVECs) treated with SW. Carotid artery in ob/ob mice was treated with SW before evaluation with sprouting assay...
December 6, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27925372/cyp19a1-mif-and-abca1-genes-are-targets-of-the-ror%C3%AE-in-monocyte-and-endothelial-cells
#6
Neslihan Coban, Cagri Gulec, Bilge Ozsait Selcuk, Nihan Erginel-Unaltuna
RORα is a member of nuclear receptor superfamily of transcription factors which has a vital role in the regulation of various physiological processes. Cholesterol is a known ligand of RORα and is one of the key components that take part in cardiovascular diseases such as atherosclerosis. Therefore, it is possible that RORα might have a role in the development of atherosclerosis. To test this hypothesis, we investigated the presence of novel RORα response elements (ROREs) located in the promoter of CYP19A1, MIF and ABCA1 genes...
December 7, 2016: Cell Biology International
https://www.readbyqxmd.com/read/27925206/opposite-effects-of-mechanical-action-of-fluid-flow-on-proangiogenic-factor-secretion-from-human-adipose-derived-stem-cells-with-and-without-oxidative-stress
#7
Beatriz Bravo, Cira García de Durango, Álvaro González, Arancha R Gortázar, Xavier Santos, Jerónimo Forteza-Vila, Fernando Vidal-Vanaclocha
Mechanical forces, hypoxia and oxidative stress contribute to skin renewal, perfusion and wound healing, but how are they regulating subcutaneous adipose-derived stem cells (ASCs) in the inflammatory microenvironment associated to skin repair and disorders is unknown. In this study, ASCs were isolated from lipoaspirate samples from plastic surgery patients, primary cultured and their differentiation and secretion of a panel of cytokines with pronounced effects on skin repair and angiogenesis were studied under mechanical stimulation by intermittent fluid flow, 1% hypoxia and oxidative stress by glutathione (GSH) depletion with buthionine sulfoximine (BSO) treatment...
December 7, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27923814/mir-483-targeting-of-ctgf-suppresses-endothelial-to-mesenchymal-transition-therapeutic-implications-in-kawasaki-disease
#8
Ming He, Zhen Chen, Marcy Martin, Jin Zhang, Panjamaporn Sangwung, Brian Woo, Adriana Tremoulet, Chisato Shimizu, Mukesh K Jain, Jane C Burns, John Shyy
RATIONALE: Endothelial-to-mesenchymal transition (EndoMT) is implicated in myofibroblast-like cell-mediated damage to the coronary arterial wall in acute Kawasaki disease (KD) patients, as evidenced by positive staining for connective tissue growth factor (CTGF) and EndoMT markers in KD autopsy tissues. However, little is known about the molecular basis of EndoMT involved in KD. OBJECTIVE: We investigated the microRNA (miRNA) regulation of CTGF and the consequent EndoMT in KD pathogenesis...
December 6, 2016: Circulation Research
https://www.readbyqxmd.com/read/27923677/intact-mitochondrial-ca-2-uniport-is-essential-for-agonist-induced-activation-of-endothelial-nitric-oxide-synthase-enos
#9
Suphachai Charoensin, Emrah Eroglu, Marissa Opelt, Helmut Bischof, Corina T Madreiter-Sokolowski, Andrijana Kirsch, Maria R Depaoli, Saša Frank, Astrid Schrammel, Bernd Mayer, Markus Waldeck-Weiermair, Wolfgang F Graier, Roland Malli
Mitochondrial Ca(2+) uptake regulates diverse endothelial cell functions and has also been related to nitric oxide (NO(•)) production. However, it is not entirely clear if the organelles support or counteract NO(•) biosynthesis by taking up Ca(2+). The objective of this study was to verify whether or not mitochondrial Ca(2+) uptake influences Ca(2+)-triggered NO(•) generation by endothelial NO(•) synthase (eNOS) in an immortalized endothelial cell line (EA.hy926), respective primary human umbilical vein endothelial cells (HUVECs) and eNOS-RFP (red fluorescent protein) expressing human embryonic kidney (HEK293) cells...
December 3, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27920820/protective-effect-of-melissa-officinalis-extract-against-h2o2-induced-oxidative-stress-in-human-vascular-endothelial-cells
#10
Leila Safaeian, Seyyed Ebrahim Sajjadi, Shaghayegh Haghjooy Javanmard, Hossein Montazeri, Fariba Samani
Melissa officinalis L. is a medicinal plant with a large variety of pharmacological effects and traditional applications. This study aimed to evaluate the protective and antioxidant activities of the extract of M. officinalis aerial parts on human umbilical vein endothelial cells (HUVECs) under oxidative stress induced by H2O2. Cells were incubated with H2O2 (0.5 mM, 2 h) after pretreatment with M. officinalis extract (25-500 μg/mL). Cell viability was evaluated by 3-(4, 5- Dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay...
October 2016: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27920724/insulin-induces-relaxation-and-decreases-hydrogen-peroxide-induced-vasoconstriction-in-human-placental-vascular-bed-in-a-mechanism-mediated-by-calcium-activated-potassium-channels-and-l-arginine-nitric-oxide-pathways
#11
Lissette Cabrera, Andrea Saavedra, Susana Rojas, Marcela Cid, Cristina Valenzuela, David Gallegos, Pamela Careaga, Emerita Basualto, Astrid Haensgen, Eduardo Peña, Coralia Rivas, Juan Carlos Vera, Victoria Gallardo, Leandro Zúñiga, Carlos Escudero, Luis Sobrevia, Mark Wareing, Marcelo González
HIGHLIGHTS Short-term incubation with insulin increases the L-arginine transport in HUVECs.Short-term incubation with insulin increases the NO synthesis in HUVECs.Insulin induces relaxation in human placental vascular bed.Insulin attenuates the constriction induced by hydrogen peroxide in human placenta.The relaxation induced by insulin is dependent on BKCa channels activity in human placenta. Insulin induces relaxation in umbilical veins, increasing the expression of human amino acid transporter 1 (hCAT-1) and nitric oxide synthesis (NO) in human umbilical vein endothelial cells (HUVECs)...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27920521/celastrol-nanomicelles-attenuate-cytokine-secretion-in-macrophages-and-inhibit-macrophage-induced-corneal-neovascularization-in-rats
#12
Zhanrong Li, Jingguo Li, Lei Zhu, Ying Zhang, Junjie Zhang, Lin Yao, Dan Liang, Liya Wang
The aim of the present study was to investigate the inhibitory effects of celastrol-loaded nanomicelles (CNMs) on activated macrophage-induced corneal neovascularization (CNV) in rats and cytokine secretion in macrophages. Using an angiogenesis assay in vitro, we detected the effects of CNMs on human umbilical vein endothelial cell (HUVEC) migration and invasion. In addition, the expression levels of cytokines secreted from hypoxia-induced macrophages were assessed through cytokine array analysis. The expression of hypoxia-inducible factors-1α (HIF-1α), nuclear factor-kappa B p65 (NF-κB p65), phospho-nuclear factor-kappa B p65 (phospho-NF-κB p65), p38 mitogen-activated protein kinase (p38 MAPK), phospho-p38 MAPK, extracellular signal-regulated kinase 1/2 (ERK1/2), and phospho-ERK1/2 was analyzed by western blotting...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27920343/epidermal-growth-factor-rescues-endothelial-dysfunction-in-primary-human-tissues-in-vitro
#13
Roxanne Hastie, Stephen Tong, Natalie J Hannan, Fiona Brownfoot, Ping Cannon, Tu'uhevaha J Kaitu'u-Lino
Preeclampsia is a hypertensive disorder of pregnancy, responsible for over 60 000 maternal deaths annually. Endothelial dysfunction is a central aspect to its pathophysiology, and currently, no medical therapeutic is available for its treatment. In this study, we aim to investigate the effect of epidermal growth factor (EGF) on endothelial dysfunction using primary human tissues. We performed a number of in vitro assays that mimic the vascular endothelial dysfunction that occurs in preeclampsia. Epidermal growth factor reduced the expression of vascular cell adhesion molecule-1, a marker of endothelial dysfunction, after insult with tumor necrosis factor α (TNF-α) or serum from women with preeclampsia...
December 5, 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27918936/promoting-angiogenesis-with-mesoporous-microcarriers-through-a-synergistic-action-of-delivered-silicon-ion-and-vegf
#14
Khandmaa Dashnyam, Guang-Zhen Jin, Joong-Hyun Kim, Roman Perez, Jun-Hyeog Jang, Hae-Won Kim
Angiogenic capacity of biomaterials is a key asset to drive vascular ingrowth during tissue repair and regeneration. Here we design a unique angiogenic microcarrier based on sol-gel derived mesoporous silica. The microspheres offer a potential angiogenic stimulator, Si ion, 'intrinsically' within the chemical structure. Furthermore, the highly mesoporous nature allows the loading and release of angiogenic growth factor 'extrinsically'. The Si ion is released from the microcarriers at therapeutic ranges (over a few ppm per day), which indeed up-regulates the expression of hypoxia inducing factor 1α (HIF1α) and stabilizes it by blocking HIF-prolyl hydroxylase 2 (PHD2) in HUVECs...
November 28, 2016: Biomaterials
https://www.readbyqxmd.com/read/27918830/the-antiangiogenic-effects-of-gold-nanoparticles-on-experimental-choroidal-neovascularization-in-mice
#15
Young-Jung Roh, Chang Rae Rho, Won-Kyung Cho, Seungbum Kang
Purpose: The purpose of this study was to evaluate the antiangiogenic effect of gold nanoparticles (AuNPs) on experimental choroidal neovascularization (CNV) in mice. Methods: Choroidal neovascularization was induced by rupturing the Bruch's membrane using laser photocoagulation in C57BL/6 mice. The following day, intravitreal injections of AuNPs were administered. The control group received PBS injection of the same volume. Two weeks after laser injury, CNV lesions were evaluated by examination of choroidal flat-mounts using fluorescein-labeled dextran and immunofluorescence staining with isolectin B4...
December 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27918592/microrna-497-induces-apoptosis-and-suppresses-proliferation-via-the-bcl-2-bax-caspase9-caspase3-pathway-and-cyclin-d2-protein-in-huvecs
#16
Ridong Wu, Shi Tang, Mian Wang, Xiangdong Xu, Chen Yao, Shenming Wang
INTRODUCTION: MicroRNAs play crucial roles in various types of diseases. However, to date, no information about the role of miR-497 in the development of atherosclerosis has been reported. This study investigated the possible role of miR-497 in vascular endothelial cell injury during the early stage of atherosclerosis. MATERIALS AND METHODS: The expression level of miR-497 in human umbilical vein endothelial cells (HUVECs) exposed to ox-LDL was detected using qRT-PCR...
2016: PloS One
https://www.readbyqxmd.com/read/27915415/exendin-4-protects-huvecs-from-tunicamycin-induced-apoptosis-via-inhibiting-the-ire1a-jnk-caspase-3-pathway
#17
Li Wu, XiaoYing Liu, LinXi Wang, YanPing Wang, LiJing Wang, BinBin Guan, Zhou Chen, LiBin Liu
PURPOSE: The abnormal increase of apoptosis of endothelial cells induced by endoplasmic reticulum stress is a significant factor for vascular disease, especially for atherosclerosis. Protecting endothelial cells from endoplasmic reticulum stress is a crucial strategies to combate these diseases. The goal of this study was to explore the effect of Exendin-4, a glucagon-like peptide-1 receptor agonist, on tunicamycin-induced apoptosis in human umbilical vein endothelial cells. METHODS: All studies were performed in primary human umbilical vein endothelial cells treated with tunicamycin with or without Exendin-4 pretreatment...
December 3, 2016: Endocrine
https://www.readbyqxmd.com/read/27915020/multifunctions-of-dual-zn-mg-ion-co-implanted-titanium-on-osteogenesis-angiogenesis-and-bacteria-inhibition-for-dental-implants
#18
Yiqiang Yu, Guodong Jin, Yang Xue, Donghui Wang, Xuanyong Liu, Jiao Sun
In order to improve the osseointegration and long-term survival of dental implants, it is urgent to develop a multifunctional titanium surface which would simultaneously have osteogeneic, angiogeneic and antibacterial properties. In this study, a potential dental implant material-dual Zn/Mg ion co-implanted titanium (Zn/Mg-PIII) was developed via plasma immersion ion implantation (PIII). The Zn/Mg-PIII surfaces were found to promote initial adhesion and spreading of rat bone marrow mesenchymal stem cells (rBMSCs) via the upregulation of the gene expression of integrin α1 and integrin β1...
November 30, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27912873/pomolic-acid-suppresses-hif1%C3%AE-vegf-mediated-angiogenesis-by-targeting-p38-mapk-and-mtor-signaling-cascades
#19
Ji-Hyun Park, Jaewoo Yoon, Byoungduck Park
BACKGROUND: Pomolic acid (PA), an active triterpenoid from Euscaphis japonica, inhibits the proliferation of a variety of cancer cells, but the molecular mechanisms of the anti-angiogenic potential of PA have not been fully elucidated in breast cancer cells. HYPOTHESIS/PURPOSE: We investigated the molecular mechanisms underlying the anti-angiogenic effect of PA in epidermal growth factor (EGF)-responsive human breast cancer cells, MCF-7 and MDA-MB-231, and human umbilical vascular endothelial cells (HUVEC)...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27911414/isolation-and-culture-of-primary-endothelial-cells-from-canine-arteries-and-veins
#20
Loes A Oosterhoff, Hedwig S Kruitwagen, Bart Spee, Frank G van Steenbeek
Cardiovascular disease is studied in both human and veterinary medicine. Endothelial cells have been used extensively as an in vitro model to study vasculogenesis, (tumor) angiogenesis, and atherosclerosis. The current standard for in vitro research on human endothelial cells (ECs) is the use of Human Umbilical Vein Endothelial Cells (HUVECs) and Human Umbilical Artery Endothelial Cells (HUAECs). For canine endothelial research, only one cell line (CnAOEC) is available, which is derived from canine aortic endothelium...
November 18, 2016: Journal of Visualized Experiments: JoVE
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