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Angiopoietin

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https://www.readbyqxmd.com/read/29332977/the-role-of-wnt-signalling-in-angiogenesis
#1
REVIEW
Jun Jun Olsen, Sebastian Öther-Gee Pohl, Abhijeet Deshmukh, Malini Visweswaran, Natalie C Ward, Frank Arfuso, Mark Agostino, Arun Dharmarajan
Angiogenesis is a normal biological process wherein new blood vessels form from the growth of pre-existing blood vessels. Preventing angiogenesis in solid tumours by targeting pro-angiogenic factors including vascular endothelial growth factor (VEGF), angiopoietin-1 (Ang-1), basic fibroblast growth factor (bFGF), hepatocyte growth factor, and platelet-derived growth factor (PDGF) is currently under investigation for cancer treatment. Concurrently targeting the cell signalling pathways involved in the transcriptional and post-translational regulation of these factors may provide positive therapeutic results...
November 2017: Clinical Biochemist. Reviews
https://www.readbyqxmd.com/read/29328541/gm-csf-ameliorates-micro-vascular-barrier-integrity-via-pericytes-derived-ang-1-in-wound-healing
#2
Min Yan, Yange Hu, Min Yao, Shisan Bao, Yong Fang
BACKGROUND: Skin wound healing involves complex coordinated interactions of cells, tissues and mediators. Maintaining microvascular barrier integrity is one of the key events for endothelial homeostasis during wound healing. Vasodilation is observed after vasoconstriction, which causes blood vessels to become porous, facilitates leukocyte infiltration and aids angiogenesis at the wound-area, post-injury. Eventually, vessel integrity has to be re-established for vascular maturation. Numerous studies have found that granulocyte macrophage colony-stimulating factor (GM-CSF) accelerates wound healing by inducing recruitment of repair cells into the injury area and releases of cytokines...
January 12, 2018: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29325128/relationship-between-twelve-adipocytokines-and-distinct-components-of-the-metabolic-syndrome
#3
Thomas Ebert, Claudia Gebhardt, Markus Scholz, Tobias Wohland, Dorit Schleinitz, Mathias Fasshauer, Matthias Blüher, Michael Stumvoll, Peter Kovacs, Anke Tönjes
Objective: Adipose tissue-derived signals potentially link obesity and adipose tissue dysfunction with metabolic and cardiovascular diseases. Although some adipocytokines have been closely related to metabolic and cardiovascular traits, it remains open which adipocytokine or adipocytokine cluster serve as meaningful marker of metabolic syndrome (MS) components. Therefore, this study investigates the associations of twelve adipocytokines with components of the MS to identify the most relevant cytokines potentially related to specific metabolic profiles...
January 9, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29324627/effects-of-the-humanized-anti-adrenomedullin-antibody-adrecizumab-ham8101-on-vascular-barrier-function-and-survival-in-rodent-models-of-systemic-inflammation-and-sepsis
#4
Christopher Geven, Esther Peters, Mathias Schroedter, Joachim Struck, Andreas Bergmann, Oscar McCook, Peter Radermacher, Matthijs Kox, Peter Pickkers
PURPOSE: Adrenomedullin (ADM) is an important regulator of endothelial barrier function during sepsis. Administration of a murine antibody targeted against the N-terminus of ADM (HAM1101) resulted in improved outcome in models of murine sepsis. We studied the effects of a humanized form of this antibody (HAM8101, also known as Adrecizumab) on vascular barrier dysfunction and survival in rodent models of systemic inflammation and sepsis. METHODS: Rats (n=48) received different dosages of HAM8101 or placebo (n = 8 per group), directly followed by administration of lipopolysaccharide (5 mg/kg)...
January 10, 2018: Shock
https://www.readbyqxmd.com/read/29323190/angiopoietins-bind-thrombomodulin-and-inhibit-its-function-as-a-thrombin-cofactor
#5
Christopher Daly, Xiaozhong Qian, Carla Castanaro, Elizabeth Pasnikowski, Xiabo Jiang, Benjamin R Thomson, Susan E Quaggin, Nicholas Papadopoulos, Yang Wei, John S Rudge, Gavin Thurston, George D Yancopoulos, Samuel Davis
Angiopoietin-1 (Ang1) and Angiopoietin-2 (Ang2) are ligands for Tie2, an endothelial-specific receptor tyrosine kinase that is an essential regulator of angiogenesis. Here we report the identification, via expression cloning, of thrombomodulin (TM) as another receptor for Ang1 and Ang2. Thrombomodulin is an endothelial cell surface molecule that plays an essential role as a coagulation inhibitor via its function as a cofactor in the thrombin-mediated activation of protein C, an anticoagulant protein, as well as thrombin-activatable fibrinolysis inhibitor (TAFI)...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317958/relationship-between-angiopoietin-like-protein-8-and-fasting-serum-triglyceride-level
#6
Hodaka Yamada, Ikuyo Kusaka, Rika Saikawa, Kazuo Hara, Masafumi Kakei, San-E Ishikawa
Background: The aim of the study was to evaluate the correlation between angiopoietin-like protein 8 (ANGPTL8) and metabolic parameters in non-diabetic healthy humans. Methods: We enrolled 30 healthy Japanese adults (25 men and five women). After 9 h of fasting, we collected blood samples and analyzed the ANGPTL8, lipoprotein lipase (LPL), plasma lipid and glucose metabolic parameters. In addition, we performed 75-g oral glucose tolerance test (OGTT) and measured adipokines (tumor necrosis factor-α, leptin and adiponectin)...
February 2018: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29308696/early-pregnancy-protein-multiplex-screening-reflects-circulating-and-urinary-divergences-associated-with-the-development-of-preeclampsia
#7
Margarita L Martinez-Fierro, Claudia Castruita-De La Rosa, Idalia Garza-Veloz, Rosa M Cardiel-Hernandez, Marcela A Espinoza-Juarez, Ivan Delgado-Enciso, Maria E Castañeda-Lopez, Edith Cardenas-Vargas, Fabiola Trejo-Vázquez, Elma I Sotelo-Ham, Rodrigo Castañeda-Miranda, Miguel A Cid-Baez, Jose M Ortiz-Rodriguez, Luis O Solis-Sanchez, Angelica Garcia Aviles, Yolanda Ortiz-Castro
BACKGROUND: Preeclampsia, a pregnancy disorder characterized by hypertension and proteinuria, represents the leading cause of fetal and maternal morbidity and mortality in developing countries. The identification of novel and accurate biomarkers that are predictive of preeclampsia is necessary to improve the prognosis of patients with preeclampsia. OBJECTIVE: To evaluate the preeclampsia predictive value of 34 angiogenic-related proteins. METHODS: We performed a nested cohort case-control study of pregnant women...
January 8, 2018: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/29307714/the-novel-brassinosteroid-analog-br4848-inhibits-angiogenesis-in-human-endothelial-cells-and-induces-apoptosis-in-human-cancer-cells-in-vitro
#8
Lucie Rárová, David Sedlák, Jana Oklestkova, Jana Steigerová, Johanna Liebl, Stefan Zahler, Petr Bartůněk, Zdeněk Kolář, Ladislav Kohout, Miroslav Kvasnica, Miroslav Strnad
We report the synthesis and detailed biological study of the synthetic brassinosteroid analog 2α,3α-dihydroxy-6-oxo-5α-androstan-17β-yl N-(tert-butoxycarbonyl)-D,L-valinate (BR4848). The panel of cancer cell lines was used for characterization of its antiproliferative activity, yet had no adverse effects in normal human fibroblasts. In HeLa cells, BR4848-induced apoptosis was accompanied by increase of apoptotic subG1 cells, PARP-1 and caspase-7 fragmentation, downregulation of Bcl-2 and Mcl-1, an increase in caspase activity and G2/M phase cell cycle arrest...
January 4, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29304535/circulating-angiogenic-mediators-in-patients-with-moderate-and-severe-von-willebrand-disease-a-multicentre-cross-sectional-study
#9
Dafna J Groeneveld, Yvonne V Sanders, Jelle Adelmeijer, Evelien P Mauser-Bunschoten, Johanna G van der Bom, Marjon H Cnossen, Karin Fijnvandraat, Britta A P Laros-van Gorkom, Karina Meijer, Ton Lisman, Jeroen Eikenboom, Frank W G Leebeek
Inhibition of von Willebrand factor (VWF) expression in endothelial cells results in enhanced, possible dysfunctional angiogenesis, consistent with observations of severe gastrointestinal bleedings caused by vascular malformations in patients with von Willebrand disease (VWD). VWF is stored in endothelial Weibel-Palade bodies (WPB) with several other mediators of angiogenesis, like angiopoietin-2, osteoprotegerin and galectin-3. Increased release of angiopoietin-2 has been observed in medium of endothelial cells lacking VWF, but data on circulating levels of angiogenic factors in patients with VWD are lacking...
January 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29304371/rare-coding-variants-in-angptl6-are-associated-with-familial-forms-of-intracranial-aneurysm
#10
Romain Bourcier, Solena Le Scouarnec, Stéphanie Bonnaud, Matilde Karakachoff, Emmanuelle Bourcereau, Sandrine Heurtebise-Chrétien, Céline Menguy, Christian Dina, Floriane Simonet, Alexis Moles, Cédric Lenoble, Pierre Lindenbaum, Stéphanie Chatel, Bertrand Isidor, Emmanuelle Génin, Jean-François Deleuze, Jean-Jacques Schott, Hervé Le Marec, Gervaise Loirand, Hubert Desal, Richard Redon
Intracranial aneurysms (IAs) are acquired cerebrovascular abnormalities characterized by localized dilation and wall thinning in intracranial arteries, possibly leading to subarachnoid hemorrhage and severe outcome in case of rupture. Here, we identified one rare nonsense variant (c.1378A>T) in the last exon of ANGPTL6 (Angiopoietin-Like 6)-which encodes a circulating pro-angiogenic factor mainly secreted from the liver-shared by the four tested affected members of a large pedigree with multiple IA-affected case subjects...
January 4, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29304116/the-sorafenib-anti-relapse-effect-after-allohsct-is-associated-with-heightened-alloreactivity-and-accumulation-of-cd8-pd-1-cd279-lymphocytes-in-marrow
#11
Andrzej Lange, Emilia Jaskula, Janusz Lange, Grzegorz Dworacki, Dorota Nowak, Aleksandra Simiczyjew, Monika Mordak-Domagala, Mariola Sedzimirska
We studied three FLT3 ITD acute myeloid leukemia (AML) patients who relapsed after allogeneic haematopoietic stem cell transplantation (alloHSCT) and received multikinase inhibitor (MKI) sorafenib as part of salvage therapy. MKI was given to block the effect of FLT3 ITD mutation which powers proliferation of blast cells. However, the known facts that sorafenib is more effective in patents post alloHSCT suggested that this MKI can augment the immune system surveillance on leukaemia. In the present study, we investigated in depth the effect of sorafenib on the alloreactivity seen post-transplant including that on leukaemia...
2018: PloS One
https://www.readbyqxmd.com/read/29298775/yes-associated-protein-promotes-angiogenesis-via-signal-transducer-and-activator-of-transcription-3-in-endothelial-cells
#12
Jinlong He, Qiankun Bao, Yan Zhang, Mingming Liu, Huizhen Lv, Yajin Liu, Liu Yao, Bochuan Li, Chenghu Zhang, Shuang He, Guijin Zhai, Yan Zhu, Xin Liu, Kai Zhang, Xiujie Wang, Ming-Hui Zou, Yi Zhu, Ding Ai
Rationale: Angiogenesis is a complex process regulating endothelial cell (EC) functions. Emerging lines of evidence support that Yes-associated protein (YAP) plays an important role in regulating the angiogenic activity of ECs. Objective: To specify the effect of EC YAP on angiogenesis and its underlying mechanisms. Methods and Results: In ECs, vascular endothelial growth factor reduced YAP phosphorylation time- and dose-dependently and increased its nuclear accumulation. Using Tie2Cre-mediated YAP transgenic (Tie2Cre-YAPTg) mice, we found that YAP promoted angiogenesis in the postnatal retina and tumor tissues...
January 3, 2018: Circulation Research
https://www.readbyqxmd.com/read/29296875/vaccination-with-autologous-myeloblasts-admixed-with-gm-k562-cells-in-patients-with-advanced-mds-or-aml-after-allogeneic-hsct
#13
Vincent T Ho, Haesook T Kim, Natalie Bavli, Martin Mihm, Olga Pozdnyakova, Matthias Piesche, Heather Daley, Carol Reynolds, Nicholas C Souders, Corey Cutler, John Koreth, Edwin P Alyea, Joseph H Antin, Jerome Ritz, Glenn Dranoff, Robert J Soiffer
We report a clinical trial testing vaccination of autologous myeloblasts admixed with granulocyte-macrophage colony-stimulating factor secreting K562 cells after allogeneic hematopoietic stem cell transplantation (HSCT). Patients with myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML) with ≥5% marrow blasts underwent myeloblast collection before HSCT. At approximately day +30, 6 vaccines composed of irradiated autologous myeloblasts mixed with GM-K562 were administered. Tacrolimus-based graft-versus-host disease (GVHD) prophylaxis was not tapered until vaccine completion (∼day 100)...
November 14, 2017: Blood Advances
https://www.readbyqxmd.com/read/29290923/angiopoietin-like-4-in-glucocorticoid-induced-insulin-resistance
#14
EDITORIAL
Rebecca A Lee, Jen-Chywan Wang
No abstract text is available yet for this article.
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29287059/microfluidics-a-high-throughput-system-for-the-assessment-of-the-endotheliopathy-of-trauma-and-the-effect-of-timing-of-plasma-administration-on-ameliorating-shock-associated-endothelial-dysfunction
#15
Lawrence N Diebel, Jonathan V Martin, David M Liberati
BACKGROUND: Early resuscitation after trauma-hemorrhagic shock (HS) with plasma rather than crystalloid may ameliorate systemic endothelial cell (EC) injury and dysfunction (endotheliopathy of trauma [EOT]). We postulated that endothelial lined microfluidic networks would be a useful platform to study the endothelial cell activation/injury under flow conditions to mimic HS. We then used the microfluidic system to further characterize the protective effects and optimal timing of plasma infusion on the development of "EOT" in our model...
December 28, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29285116/effect-of-hua-yu-xiao-zheng-decoction-on-the-expression-levels-of-vascular-endothelial-growth-factor-and-angiopoietin-2-in-rats-with-endometriosis
#16
Zhen-Zhen Chen, Xin Gong
The aims of the present study were to investigate the effects of a traditional Chinese medicine, Hua Yu Xiao Zheng (HYXZ) decoction, on surgically induced endometriosis in a rat model and to determine the possible underlying regulatory mechanisms. A total of 108 female Sprague-Dawley rats were divided into the control group (n=12) and endometriosis group (EM group; n=96), in which endometriosis was surgically induced in model rats by autotransplantation of endometrial tissues and 72 rats survived. After 3 weeks, the EM model rats were randomly divided into four subgroups (n=18), including the untreated model group, and three groups administered 7, 14 or 21 g/kg HYXZ decoction...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29262394/dachengqi-decoction-attenuates-intestinal-vascular-endothelial-injury-in-severe-acute-pancreatitis-in-vitro-and-in-vivo
#17
Li-Yun Pan, Ya-Feng Chen, Hong-Chang Li, Li-Ming Bi, Wen-Jie Sun, Gui-Fang Sun, Xiao-Fen Zhang, Ke Xu, Dian-Xu Feng
BACKGROUND/AIMS: Dachengqi decoction (DCQD) is a well-known traditional Chinese herbal drug with strong anti-inflammatory effects. Angiopoietin-1 (Ang-1) plays a vital role in maintaining the stability and integrity of the vascular wall and prevents vascular leakage due to inflammatory mediators. Our previous work found that DCQD protects against pancreatic injury in rats with severe acute pancreatitis (SAP). This study aims to investigate the effects of DCQD on intestinal endothelial damage in both damaged human umbilical vein endothelial cells (HUVECs) and SAP rats...
December 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29259898/clinical-and-experimental-study-on-angiopoietin-like-protein-8-associated-with-proliferative-diabetic-retinopathy
#18
Chang-Xia Dong, Cai-Ping Song, Chun-Ping Zhang, Mei Dong, Xiu-Rong Gong, He-Ying Gao, Hong Wang
AIM: To confirm the role of angiopoietin-like protein 8 (Angptl 8) in proliferative diabetic retinopathy (PDR). METHODS: The sera and aqueous humor of 10 PDR patients and 10 non-diabetic retinopathy (NDR) patients (idiopathic macular hole patients) were collected and the expression of Angptl 8 was detected by enzyme linked immune-sorbent assay (ELISA). Experimental diabetes mice model was induced with streptozotocin. The expression of glycosylated hemoglobin and Angptl 8 in sera was detected...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29259285/peroxisome-proliferator-activated-receptor-alpha-agonist-suppresses-neovascularization-by-reducing-both-vascular-endothelial-growth-factor-and-angiopoietin-2-in-corneal-alkali-burn
#19
Takeshi Arima, Masaaki Uchiyama, Yuichiro Nakano, Shinya Nagasaka, Dedong Kang, Akira Shimizu, Hiroshi Takahashi
We investigated the effect of a peroxisome proliferator-activated receptor alpha (PPARα) agonist ophthalmic solution in wound healing using a rat corneal alkali burn model. After instillation of a selective agonist of PPARα, fenofibrate, onto the burned cornea, PPARα-positive cells were observed in vascular endothelial cells, and there was upregulation of mRNA of PPARα in corneal stroma. Fenofibrate suppressed expression of neutrophils and macrophages during the early phase, and development of neovascularization and myofibroblast generation during the late phase...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29258676/a-tumor-necrosis-factor-%C3%AE-and-hypoxia-induced-secretome-therapy-for-myocardial-repair
#20
Kaviyanka Selvasandran, Georges Makhoul, Prashant K Jaiswal, Rishi Jurakhan, Li Li, Khalid Ridwan, Renzo Cecere
BACKGROUND: Poor viability and retention of transplanted bone marrow mesenchymal stem cells (BM-MSC) remains an obstacle in promoting healing after myocardial infarction (MI). This study aimed to understand the migratory, angiogenic, and cardioprotective effects induced by tumor necrosis factor (TNF)-α and hypoxia through rat BM-MSC (rBM-MSC) paracrine secretions, collectively referred to as secretome, after MI. METHODS: Secretome from rBM-MSC cultures treated with various combinations of H9c2 cardiomyoblast-conditioned medium, TNF-α, and hypoxia was initially collected...
December 16, 2017: Annals of Thoracic Surgery
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