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https://www.readbyqxmd.com/read/28103423/adipose-derived-perivascular-mesenchymal-stromal-stem-cells-promote-functional-vascular-tissue-engineering-for-cardiac-regenerative-purposes
#1
Justin Morrissette-McAlmon, Adriana Blazeski, Sarah Somers, Geran Kostecki, Leslie Tung, Warren L Grayson
Cardiac tissue engineering approaches have the potential to regenerate functional myocardium with intrinsic vascular networks. In this study, we compared the relative effects of human adipose-derived stem/stromal cells (hASCs) and human dermal fibroblasts (hDFs) in co-cultures with neonatal rat ventricular cardiomyocytes (NRVCMs) and human umbilical vein endothelial cells (HUVECs). We found that at the same ratios of NRVCM:hASC and NRVCM:hDF, the hASC co-cultures displayed shorter action potentials and maintained capture at faster pacing rates...
January 19, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28102435/effects-of-tryptophan-containing-peptides-on-angiotensin-converting-enzyme-activity-and-vessel-tone-ex-vivo-and-in-vivo
#2
Sherif Khedr, Andreas Deussen, Irakli Kopaliani, Birgit Zatschler, Melanie Martin
PURPOSE: Over-activation of the renin-angiotensin axis and worsening of vascular function are critical contributors to the development of hypertension. Therefore, inhibition of angiotensin-converting enzyme (ACE), a key factor of the renin-angiotensin axis, is a first line treatment of hypertension. Besides pharmaceutical ACE inhibitors, some natural peptides have been shown to exert ACE-inhibiting properties with antihypertensive effects and potentially beneficial effects on vascular function...
January 19, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28101214/parp-1-may-be-involved-in-angiogenesis-in-epithelial-ovarian-cancer
#3
Wei Wei, Yan Li, Shuqing Lv, Cancan Zhang, Yongjie Tian
Poly (ADP-ribose) polymerase 1 (PARP-1) is involved in DNA repair and has been implicated in chemoresistance. The present study investigated whether PARP-1 promotes angiogenesis in ovarian cancer. PARP-1 and vascular endothelial growth factor A (VEGF-A) expression and CD34(+) microvascular density (MVD) were assessed using immunohistochemistry in 60 human epithelial ovarian cancer specimens. PARP-1 was stably knocked-down in SKOV3 cells using a specific small interfering RNA (siRNA); angiogenic capacity was assessed using the human umbilical vein endothelial cell (HUVEC) tubule formation assay; and PARP-1 and VEGF-A expression were examined by reverse transcription-quantitative polymerase chain reaction, western blotting and ELISA...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100645/lipoxin-a4-stimulates-endothelial-mir-126-5p-expression-and-its-transfer-via-microvesicles
#4
Marilina Codagnone, Antonio Recchiuti, Paola Lanuti, Anna Maria Pierdomenico, Eleonora Cianci, Sara Patruno, Veronica Cecilia Mari, Felice Simiele, Pamela Di Tomo, Assunta Pandolfi, Mario Romano
The proresolution lipid mediator lipoxin (LX)A4 bestows protective bioactions on endothelial cells. We examined the impact of LXA4 on transcellular endothelial signaling via microRNA (miR)-containing microvesicles. We report LXA4 inhibition of MV release by TNF-α-treated HUVECs, associated with the down-regulation of 18 miR in endothelial microvesicles (EMVs) and the up-regulation of miR-126-5p, both in HUVECs and in EMVs. LXA4 up-regulated miR-126-5p by ∼5-fold in HUVECs and promoted a release of microvesicles (LXA4-EMVs) that enhanced miR-126-5p by ∼7-fold in recipient HUVECs...
January 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28098961/angiogenic-and-osteogenic-regeneration-in-rats-via-calcium-phosphate-scaffold-and-endothelial-cell-coculture-with-hbmscs-hucmscs-hipsc-mscs-and-hesc-mscs
#5
Wenchuan Chen, Xian Liu, Qianmin Chen, Chongyun Bao, Liang Zhao, Zhimin Zhu, Hockin H K Xu
Angiogenesis is a limiting factor in regenerating large bone defects. The objective of this study was to investigate angiogenic and osteogenic effects of coculture on calcium phosphate cement (CPC) scaffold using human umbilical vein endothelial cells (hUVECs) and mesenchymal stem cells (MSCs) from different origins for the first time. hUVECs were cocultured with four types of cells: human umbilical cord MSCs (hUCMSCs), human bone marrow MSCs (hBMSCs), and MSCs from induced pluripotent stem cells (hiPSC-MSCs) and embryonic stem cells (hESC-MSCs)...
January 18, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28098888/hclock-induction-by-hypoxia-promotes-inflammatory-responses-by-activating-the-nf%C3%A2-%C3%AE%C2%BAb-pathway
#6
Xiao Tang, Daqiao Guo, Changpo Lin, Zhenyu Shi, Ruizhe Qian, Weiguo Fu, Jianjun Liu, Xu Li, Longhua Fan
The expression and secretion of infla-mmation‑associated cytokines are induced by hypoxia. Circadian locomotor output cycles protein kaput (CLOCK) has previously been shown to activate the nuclear factor‑κB (NF‑κB) pathway, which is a key transcription factor during hypoxia. The present study evaluated the role of the NF‑κB pathway in the CLOCK‑induced inflammatory response. Under hypoxic conditions, the expression levels of NF‑κB and proinflammatory cytokines, including interleukin (IL)‑1, IL‑1β, IL‑6, intercellular adhesion molecule 1, cyclooxygenase 2 and tumor necrosis factor alpha, were significantly increased compared with under control conditions...
January 17, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28098802/penduliflaworosin-a-diterpenoid-from-croton-crassifolius-exerts-anti-angiogenic-effect-via-vegf-receptor-2-signaling-pathway
#7
Yeyin Liang, Yubo Zhang, Guocai Wang, Yaolan Li, Weihuan Huang
Anti-angiogenesis targeting vascular endothelial growth factor receptor-2 (VEGFR-2) has been considered as an important strategy for cancer therapy. Penduliflaworosin is a diterpenoid isolated from the plant Croton crassifolius. Our previous study showed that this diterpenoid possesses strong anti-angiogenic activity by inhibiting vessel formation in zebrafish. This study was conducted to further investigate the anti-angiogenic activity and mechanism of penduliflaworosin. Results revealed that penduliflaworosin significantly inhibited VEGF-induced angiogenesis processes including proliferation, invasion, migration, and tube formation of human umbilical vein endothelial cells (HUVECs)...
January 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28098292/an-andrographolide-derivative-agp-26b-exhibiting-anti-angiogenic-activity-in-huvecs-and-zebrafish-via-blocking-the-vegfa-vegfr2-signaling-pathway
#8
Bin Huang, Yuran Peng, Jingjing Li, Shang Li, Yicheng Sun, Decai Wang, Binrui Yang, Judy Yuet-Wa Chan, Huidong Yu, George Pak-Heng Leung, Maggie Pui-Man Hoi, Guo-Chun Zhou, Simon Ming-Yuen Lee
The aim of this study is to investigate the anti-angiogenic properties of andrographolide derivatives AGP-26a (12β-isomer), AGP-26b (12α-isomer) and AGP-26 (4 : 1 mixture of AGP-26a and AGP-26b) in vitro and in vivo. Human umbilical vein endothelial cells (HUVECs) and the Tg(fli-1a:EGFP)y1 zebrafish model were used to identify the anti-angiogenic activities of AGP-26, AGP-26a, and AGP-26b. The results showed that AGP-26b exhibits the strongest inhibitory effect on VEGF-induced proliferation, migration, invasion and formation of capillary-like structures in HUVECs...
January 18, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28097093/vascular-endothelial-growth-factor-suppresses-tnfsf15-production-in-endothelial-cells-by-stimulating-mir-31-and-mir-20a-expression-via-activation-of-akt-and-erk-signals
#9
Hui-Ting Deng, Hai-Lin Liu, Bei-Bei Zhai, Kun Zhang, Guo-Ce Xu, Xue-Mei Peng, Qiang-Zhe Zhang, Lu-Yuan Li
Tumor necrosis factor superfamily-15 (TNFSF15; VEGI; TL1A) is a negative modulator of angiogenesis for blood vessel homeostasis and is produced by endothelial cells in a mature vasculature. It is known to be downregulated by vascular endothelial growth factor (VEGF), a major regulator of neovascularization but the mechanism of this interaction is unclear. Here we report that VEGF is able to stimulate the production of two microRNAs, miR-20a and miR-31, which directly target the 3'-UTR of TNFSF15. Additionally, we show that two VEGF-stimulated cell growth signals, Erk and Akt, are responsible for promoting the expression of miR-20a and miR-31...
January 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28093230/gastrin-releasing-peptide-induces-monocyte-adhesion-to-vascular-endothelium-by-upregulating-endothelial-adhesion-molecules
#10
Mi-Kyoung Kim, Hyun-Joo Park, Yeon Kim, Hyung Joon Kim, Soo-Kyung Bae, Moon-Kyoung Bae
Gastrin-releasing peptide (GRP) is a neuropeptide that plays roles in various pathophysiological conditions including inflammatory diseases in peripheral tissues; however, little is known about whether GRP can directly regulate endothelial inflammatory processes. In this study, we showed that GRP promotes the adhesion of leukocytes to human umbilical vein endothelial cells (HUVECs) and the aortic endothelium. GRP increased the expression of intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) by activating nuclear factor-κB (NF-κB) in endothelial cells...
January 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28091613/adrenomedullin-promotes-angiogenesis-in-epithelial-ovarian-cancer-through-upregulating-hypoxia-inducible-factor-1%C3%AE-and-vascular-endothelial-growth-factor
#11
Yi Zhang, Yang Xu, Jian Ma, Xiaoyan Pang, Mei Dong
Adrenomedullin (ADM) is a multi-functional peptide related to many kinds of tumors. This study was aimed to investigate the role of ADM on angiogenesis in epithelial ovarian cancer (EOC) and its possible mechanism. The expressions of ADM, vascular endothelial growth factor (VEGF), hypoxia-inducible factor-1α (HIF-1α) and CD34 were examined by immunohistochemistry staining. The relationship among ADM, HIF-1α, VEGF and micro-vessel density (MVD) was assessed in 56 EOC tissues. CAOV3 cells were stably transfected with pcDNA-ADM (plasmid overexpressing ADM gene) or pRNA-shADM (small interfering RNA for ADM gene)...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28090801/angiotensin-converting-enzyme-inhibitors-attenuate-propofol-induced-pro-oxidative-and-antifibrinolytic-effect-in-human-endothelial-cells
#12
Marzena Wojewodzka-Zelezniakowicz, Anna Gromotowicz-Poplawska, Wioleta Kisiel, Emilia Konarzewska, Janusz Szemraj, Jerzy Robert Ladny, Ewa Chabielska
INTRODUCTION: The aim of this study was to investigate the effects of plasma and tissue angiotensin-converting enzyme inhibitors (ACE-Is) against propofol-induced endothelial dysfunction and to elucidate the involved mechanisms in vitro. MATERIALS AND METHODS: We examined the effects of propofol (50 μM), quinaprilat and enalaprilat (10(-5) M) on fibrinolysis (t-PA, PAI-1, TAFI antigen levels), oxidative stress parameters (H2O2 and MDA antigen levels and SOD and NADPH oxidase mRNA levels) and nitric oxide bioavailability (NO2/NO3 concentration and NOS expression at the level of mRNA) in human umbilical vein endothelial cells (HUVECs)...
January 2017: Journal of the Renin-angiotensin-aldosterone System: JRAAS
https://www.readbyqxmd.com/read/28090093/upar-promotes-tumor-like-biologic-behaviors-of-fibroblast-like-synoviocytes-through-pi3k-akt-signaling-pathway-in-patients-with-rheumatoid-arthritis
#13
Yan Liu, Yun Feng Pan, You-Qiu Xue, Lin-Kai Fang, Xing-Hua Guo, Xin Guo, Meng Liu, Bi-Yao Mo, Meng-Ru Yang, Fang Liu, Yun-Ting Wu, Nancy Olsen, Song Guo Zheng
Urokinase-type plasminogen activator receptor (uPAR), is a multifunctional receptor on cell surface, widely present in endothelial cells, fibroblasts, and a variety of malignant cells. Current studies have suggested that uPAR overexpressed on synovial tissues or in synovial fluid or plasma in patients with rheumatoid arthritis (RA). However, there are limited researches regarding the role of uPAR on fibroblast-like synoviocytes of rheumatoid arthritis (RA-FLSs) and its underlying mechanisms. Here, our studies show that the expression of uPAR protein was significantly higher in fibroblast-like synoviocytes (FLSs) from RA than those from osteoarthritis or traumatic injury patients...
January 16, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28089929/impact-of-immobilizing-of-low-molecular-weight-hyaluronic-acid-within-gelatin-based-hydrogel-through-enzymatic-reaction-on-behavior-of-enclosed-endothelial-cells
#14
Mehdi Khanmohammadi, Shinji Sakai, Masahito Taya
The hydrogels having the ability to promote migration and morphogenesis of endothelial cells (ECs) are useful for fabricating vascularized dense tissues in vitro. The present study explores the immobilization of low molecular weight hyaluronic acid (LMWHA) derivative within gelatin-based hydrogel to stimulate migration of ECs. The LMWHA derivative possessing phenolic hydroxyl moieties (LMWHA-Ph) was bound to gelatin-based derivative hydrogel through the horseradish peroxidase-catalyzed reaction. The motility of ECs was analyzed by scratch migration assay and microparticle-based cell migration assay...
January 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28089144/essential-role-of-icam-1-in-aldosterone-induced-atherosclerosis
#15
Vincenzo Marzolla, Andrea Armani, Caterina Mammi, Mary E Moss, Vittoria Pagliarini, Laura Pontecorvo, Antonella Antelmi, Andrea Fabbri, Giuseppe Rosano, Iris Z Jaffe, Massimiliano Caprio
OBJECTIVE: Elevated aldosterone is associated with increased risk of atherosclerosis complications, whereas treatment with mineralocorticoid receptor (MR) antagonists decreases the rate of cardiovascular events. Here we test the hypothesis that aldosterone promotes early atherosclerosis by modulating intercellular adhesion molecule-1 (ICAM-1) expression and investigate the molecular mechanisms by which aldosterone regulates ICAM-1 expression. METHODS AND RESULTS: Apolipoprotein-E (ApoE)(-/-) mice fed an atherogenic diet and treated with aldosterone for 4weeks showed increased vascular expression of ICAM-1, paralleled by enhanced atherosclerotic plaque size in the aortic root...
January 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28088561/mutant-dd-genotype-of-nfkb1-gene-is-associated-with-the-susceptibility-and-severity-of-coronary-artery-disease
#16
Jun-Yi Luo, Xiao-Mei Li, Yun Zhou, Qiang Zhao, Bang-Dang Chen, Fen Liu, Xiao-Cui Chen, Hong Zheng, Yi-Tong Ma, Xiao-Ming Gao, Yi-Ning Yang
Nuclear factor κappa B (NF-κB) is an important transcription factor in the development and progression of coronary artery disease (CAD). Recent evidence suggests that -94 ATTG ins/del mutant in the promoter of NFKB1 gene is an essential functional mutant. The present study demonstrated the frequencies of the del/del (DD) genotype and del (D) allele were significantly higher in CAD patients than in controls. CAD patients carrying mutant DD genotype had worse stenosis of diseased coronary arteries compared to those carrying ins/ins (II) or ins/del (ID) genotype...
January 12, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28088446/identification-and-characterization-of-cell-bound-membrane-vesicles
#17
Qisheng Tang, Xiaojun Zhang, Wendiao Zhang, Siyuan Zhao, Yong Chen
In contrast to the released/circulating membrane vesicles (extracellular vesicles), cell-bound membrane vesicles are poorly identified and characterized. In this study, cell-bound membrane vesicles on human umbilical vein endothelial cells (HUVECs) and human hepatoma HepG-2 cells were investigated. We identified that cell-bound membrane vesicles are not co-localized with the major markers for extracellular vesicles (e.g. phosphatidylserine, CD63, CD107α, CD31, and DNA fragments for the three well-known types of extracellular vesicles) and for intracellular organelles with similar sizes (e...
January 11, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28087861/jolkinolide-a-and-jolkinolide-b-inhibit-proliferation-of-a549-cells-and-activity-of-human-umbilical-vein-endothelial-cells
#18
Lei Shen, Shan-Qiang Zhang, Lei Liu, Yu Sun, Yu-Xuan Wu, Li-Ping Xie, Ji-Cheng Liu
BACKGROUND Jolkinolide A (JA) and Jolkinolide B (JB) are diterpenoids extracted from the roots of Euphorbia fischeriana Steud and have been shown to have anti-tumor activity. However, their effects on the ability of tumor cells to invade blood vessels and metastasize remain largely unknown. Investigations into the effects of JA and JB on the angiogenesis of tumor tissues may facilitate the identification of new natural drugs with anti-tumor growth and metastasis activities. MATERIAL AND METHODS We used different concentrations of JA and JB (20 μg/ml, 40 μg/ml, 60 μg/ml, 80 μg/ml, and 100 μg/ml) to stimulate A549 cells and then studied the effects on the growth and metastasis of lung cancers...
January 14, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28087411/aspirin-prevents-tnf-%C3%AE-induced-endothelial-cell-dysfunction-by-regulating-the-nf-%C3%AE%C2%BAb-dependent-mir-155-enos-pathway-role-of-a-mir-155-enos-axis-in-preeclampsia
#19
Joohwan Kim, Kyu-Sun Lee, Ji-Hee Kim, Dong-Keon Lee, Minsik Park, Seunghwan Choi, Wonjin Park, Suji Kim, Yoon Kyoung Choi, Jong Yun Hwang, Jongseon Choe, Moo-Ho Won, Dooil Jeoung, Hansoo Lee, Sungwoo Ryoo, Kwon-Soo Ha, Young-Guen Kwon, Young-Myeong Kim
Preeclampsia is an inflammatory disease with endothelial cell dysfunction that occurs via decreased endothelial nitric oxide synthase/nitric oxide (eNOS/NO) activity. Aspirin reduces the incidence of hypertensive pregnancy complications. However, the underlying mechanism has not been clearly explained. Here, we found that tumor necrosis factor (TNF)-α, microRNA (miR)-155, and eNOS levels as well as endothelial redox phenotype were differentially regulated in preeclamptic patients, implying the involvement of TNF-α- and redox signal-mediated miR-155 biogenesis and eNOS downregulation in the pathogenesis of preeclampsia...
January 10, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28087344/up-regulation-of-the-active-form-of-small-gtpase-rab13-promotes-macroautophagy-in-vascular-endothelial-cells
#20
Lu Zhang, Fang Dai, LiuQing Cui, Bo Zhou, YuQi Guo
The importance of macroautophagy (hereafter referred to as autophagy) in vascular endothelial cell (VEC) biology and dysfunction is increasingly recognized, but the molecular mechanisms of autophagy in VECs in the presence of serum are still poorly understood. Previously, we identified pterostilbene as a potent autophagy inducer of VECs in the presence of serum. In this study, we used pterostilbene as a tool to induce VEC autophagy and identified the differentially expressed genes using high-throughput DAN microarray...
January 10, 2017: Biochimica et Biophysica Acta
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