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Vascular endothelial growth factor

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https://www.readbyqxmd.com/read/28934825/the-potential-roles-of-melf-pattern-microvessel-density-and-vegf-expression-in-survival-of-patients-with-endometrioid-endometrial-carcinoma-a-morphometrical-and-immunohistochemical-analysis-of-100-cases
#1
Dmitry Aleksandrovich Zinovkin, Md Zahidul Islam Pranjol, Daniil Rudolfovich Petrenyov, Eldar Arkadievich Nadyrov, Oleg Gennadievich Savchenko
BACKGROUND: In this study, we hypothesized that microcystic, elongated, fragmented (MELF)-pattern, vascular endothelial growth factor (VEGF) expression by cancer cells and microvessel density of cancer stroma may be associated with progression of endometrioid adenocarcinoma. METHODS: The study used data from the Belarus Cancer Registry and archival histological material of 100 patients with retrospectively known good (survival) and poor (disease progression and death) outcomes...
September 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28933986/the-antiangiogenesis-effect-of-pirfenidone-in-wound-healing-in-vitro
#2
Xiao'an Liu, Yangfan Yang, Xiujuan Guo, Liling Liu, Kaili Wu, Minbin Yu
Abstracts Background: Pirfenidone is mostly used in antifibrotic and anti-inflammatory therapies. We have previously demonstrated that pirfenidone had antifibrotic and anti-inflammatory effects on the wound healing process after glaucoma filtration surgery in vitro and in vivo. Since the wound healing and reactive scarring process simultaneously involves inflammation, fibrosis, and angiogenesis, and angiogenesis plays a more important role in chronic or prolonged wound healing, we tried to explore the antiangiogenesis effect in pirfenidone and its potential multitarget function in regulating excessive scarring...
September 21, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28933636/nicotinic-acid-inhibits-angiogenesis-likely-through-cytoskeleton-remodeling
#3
Lemen Pan, Guanfeng Yu, Xiangjian Chen, Xiaoqiang Li
Angiogenesis is a physiological procedure during which the new blood vessels develop from the pre-existing vessels. Uncontrolled angiogenesis is related to various diseases including cancers. Clinical inhibition of undesired angiogenesis is still under investigation. We utilized nicotinic acid, a family member of the B-vitamin niacin (vitamin B3) that has been used in the prevention and treatment of atherosclerosis or other lipid-metabolic disorders, to treat human umbilical vein endothelial cells (HUVECs) and chick chorioallantoic membrane (CAM), and investigated its influence on angiogenesis in vitro and in vivo...
September 21, 2017: Organogenesis
https://www.readbyqxmd.com/read/28933580/the-role-of-cediranib-in-ovarian-cancer
#4
Cecilia Orbegoso, Gloria Marquina, Angela George, Susana Banerjee
Treatment options for relapsed ovarian cancer have increased over the decade with the addition of targeted agents, such as PARP inhibitors and antiangiogenic agents. Bevacizumab, a monoclonal antibody binding vascular endothelial growth factor (VEGF), was the first anti-angiogenic agent to be incorporated in the ovarian cancer treatment landscape. Other molecules utilising different mechanisms of action to target angiogenesis have been developed, including Cediranib, an oral potent inhibitor of VEGF Tyrosine Kinase Inhibitor that has demonstrated activity in both phase II and phase III studies...
September 21, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28933517/new-treatment-modalities-for-neovascular-age-related-macular-degeneration
#5
Patricio G Schlottmann, Arturo A Alezzandrini, Marcelo Zas, Francisco J Rodriguez, José D Luna, Lihteh Wu
Age-related macular degeneration (AMD) is considered one of the main causes of severe vision loss in older adults. The neovascular form (nAMD) is an advanced stage, which is responsible for the most severe vision loss. Vascular endothelial growth factor (VEGF) is at present the main factor that leads to the development of a neovascular membrane and the increased leakage from the membrane to the retina. At present, anti-VEGF therapy is the only treatment that achieves vision gains in many patients and halts progression in most of them...
September 14, 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28933203/in-vivo-antitumor-effect-of-endostatin-loaded-chitosan-nanoparticles-combined-with-paclitaxel-on-lewis-lung-carcinoma
#6
Fang Xie, Rui-Lin Ding, Wen-Feng He, Zong-Jun-Lin Liu, Shao-Zhi Fu, Jing-Bo Wu, Ling-Lin Yang, Sheng Lin, Qing-Lian Wen
The purpose of this study was to prepare endostatin-loaded chitosan nanoparticles (ES-NPs) and evaluate their antitumor effect when combined with paclitaxel (PTX) on Lewis lung carcinoma (LLC) mouse xenografts. ES-NPs were prepared by ionic cross-linking. Characterization of the ES-NPs included size distribution, drug-loading efficiency (DL), and encapsulation efficiency (EE). An in vitro release test was also used to determine the release behavior of the ES-NPs. A subcutaneous LC xenograft model of C57BL/6J mice was established...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28932732/sustained-released-mixture-of-vascular-endothelial-growth-factor-165-and-fibrin-glue-strengthens-healing-of-ileal-anastomoses-in-a-rabbit-model-with-intraperitoneal-infection
#7
Zhanwu Li, Wenjun Wang, Xiaozhou Wang, Lei Jiang, Fengyi Wang, Qiang Liu
PURPOSE: To investigate the effects of a sustained-released mixture of vascular endothelial growth factor 165 (VEGF165) and fibrin glue (FG) local administration on postoperative rabbit ileal anastomoses. METHODS: One hundred twenty-eight male and female New Zealand white rabbits underwent intraperitoneal infection subsequent ileal anastomosis surgery were divided randomly into 4 groups, including 32 animals in each, applied with saline solution, FG, rhVEGF165 and a mixture of rhVEGF165 with FG (VEGF + FG) on the anastomoses, respectively...
September 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28932080/comparison-between-tocotrienol-and-omeprazole-on-gastric-growth-factors-in-stress-exposed-rats
#8
Mohd Fahami Nur Azlina, Hj Mohd Saad Qodriyah, Kien Hui Chua, Yusof Kamisah
AIM: To investigate and compare the effects of tocotrienol and omeprazole on gastric growth factors in rats exposed to water-immersion restraint stress (WIRS). METHODS: Twenty-eight male Wistar rats were randomly assigned to four groups of seven rats. The two control groups were administered vitamin-free palm oil (vehicle) and the two treatment groups were given omeprazole (20 mg/kg) or tocotrienol (60 mg/kg) by oral gavage. After 28 d of treatment, rats from one control group and both treated groups were subjected to WIRS one time for 3...
August 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28931312/antidepressive-effects-of-environmental-enrichment-in-chronic-stress-induced-depression-in-rats
#9
Ho-Hyun Seong, Jong-Min Park, Youn-Jung Kim
Depression is caused by a variety of factors, especially stressful life events. Chronic stress-induced depression has detrimental effects on hippocampal integrity. Environmental enrichment (EE) is a beneficial intervention for improving anxiety, fear, and stress. We aimed to investigate the antidepressive effects of EE in a depressive rat model (DEP) that was subjected to chronic stress. The control group ( n = 10) was kept under normal conditions, while depressive rats ( n = 8 per group) were randomized into DEP, DEP + EE, and DEP + fluoxetine (Flx) groups...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28930884/rate-of-macular-ganglion-cell-inner-plexiform-layer-thinning-in-glaucomatous-eyes-with-vascular-endothelial-growth-factor-inhibition
#10
Won June Lee, Young Kook Kim, Yong Woo Kim, Jin Wook Jeoung, Seok Hwan Kim, Jang Won Heo, Hyeong Gon Yu, Ki Ho Park
PURPOSE: To evaluate the rate of progressive macular ganglion cell-inner plexiform layer (GCIPL) thinning in patients with open-angle glaucoma (OAG) who had been treated with intravitreal anti-vascular endothelial growth factor (VEGF) injection for wet age-related macular degeneration (AMD). METHODS: This study was a retrospective modified case control study with fellow-eye comparison. We enrolled bilateral OAG patients who had been treated with repeated anti-VEGF injections for unilateral wet AMD and followed-up on for a minimum of 24 months by Cirrus high-definition optical coherence tomography (HD-OCT)...
September 19, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28930802/morphologic-features-associated-with-fibrotic-scarring-after-anti-vascular-endothelial-growth-factor-therapy-in-polypoidal-choroidal-vasculopathy
#11
Jae Hui Kim, Young Suk Chang, Jong Woo Kim, Chul Gu Kim, Dong Won Lee, Ye Ji Kim
PURPOSE: To investigate morphologic features associated with fibrotic scarring after anti-vascular endothelial growth factor therapy in polypoidal choroidal vasculopathy (PCV). METHODS: This retrospective study included 293 patients who had been diagnosed with PCV and treated with anti-vascular endothelial growth factor monotherapy during a 12-month follow-up period. Associations of morphologic features, including type of PCV, location of the polypoidal lesion, greatest linear dimension, largest polyp diameter, choroidal vascular hyperpermeability, pigment epithelial detachment, intraretinal fluid, and subretinal hyperreflective material (SHRM) with fibrotic scar at 12 months were analyzed...
September 19, 2017: Retina
https://www.readbyqxmd.com/read/28930755/vegf-and-igf-delivered-from-alginate-hydrogels-promote-stable-perfusion-recovery-in-ischemic-hind-limbs-of-aged-mice-and-young-rabbits
#12
Erin M Anderson, Eduardo A Silva, Yibai Hao, Kathleen D Martinick, Sarah A Vermillion, Alexander G Stafford, Elisabeth G Doherty, Lin Wang, Edward J Doherty, Paul M Grossman, David J Mooney
Biomaterial-based delivery of angiogenic growth factors restores perfusion more effectively than bolus delivery methods in rodent models of peripheral vascular disease, but the same success has not yet been demonstrated in clinically relevant studies of aged or large animals. These studies explore, in clinically relevant models, a therapeutic angiogenesis strategy for the treatment of peripheral vascular disease that overcomes the challenges encountered in previous clinical trials. Alginate hydrogels providing sustained release of vascular endothelial growth factor (VEGF) and insulin-like growth factor-1 (IGF) were injected into ischemic hind limbs in middle-aged and old mice, and also in young rabbits, as a test of the scalability of this local growth factor treatment...
September 21, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28930549/growth-factors-in-the-pathogenesis-of-diabetic-foot-ulcers
#13
Min Qi, Qiuhong Zhou, Weiqi Zeng, Lisha Wu, Shuang Zhao, Wangqing Chen, Chang Luo, Minxue Shen, Jianglin Zhang, Can-E Tang
Foot ulcers affect 15% of patients with diabetes, resulting in a great health burden. The occurrence and development of diabetic foot ulcers is associated with neuropathy, peripheral arterial disease, and infection. Several growth factors are involved in these processes, including epidermal growth factor, vascular endothelial growth factor, transforming growth factor-beta, fibroblast growth factor, and erythropoietin, which could promote wound healing of patients with diabetes. Thus, this review discusses the role of these growth factors in the pathogenesis of diabetic foot ulcers, aiming to achieve novel insights into the management of diabetic foot ulcers...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28929822/genetic-and-ethnic-modulation-of-cardiovascular-toxicity-of-vascular-endothelial-growth-factor-inhibitors
#14
Yen-Chou Chen, Cheng-Chih Chung, Yung-Kuo Lin, Yi-Jen Chen
Vascular endothelial growth factor (VEGF) inhibitors, including monoclonal antibodies and tyrosine kinase inhibitors (TKIs), are important as anticancer treatments through curbing tumor angiogenesis and growth. VEGF inhibitors have significant cardiovascular effects. By blocking VEGF receptors, ligands, or signal pathways, VEGF inhibitors disturb the balance between vasodilation and vasoconstriction, undermine endothelial cell integrity, and activate cardiomyocyte apoptosis. VEGF inhibitors increase risks of hypertension, heart failure, thromboembolism, and arrhythmia...
September 20, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28928847/anti-angiogenic-effect-of-arsenic-trioxide-in-lung-cancer-via-inhibition-of-endothelial-cell-migration-proliferation-and-tube-formation
#15
Meng-Hang Yang, Ke-Jie Chang, Jin-Cheng Zheng, Hai Huang, Guang-Yuan Sun, Xue-Wei Zhao, Bing Li, Qing-Yu Xiu
Arsenic trioxide (As2O3) exhibits a remarkable effect on leukemia treatment; however, its effect on solid tumors remains poorly explored. The present study demonstrated the inhibitory effect of As2O3 on lung cancer and explored its possible mechanism. It was observed that As2O3 significantly inhibited the growth of lung cancer xenografts and tumor angiogenesis in vivo. The inhibitory effect of As2O3 on cell proliferation in vitro was more remarkable in vascular endothelial cells than in lung cancer cells. It was also observed that As2O3 inhibited the migration of vascular endothelial cells and disrupted vascular tube formation on Matrigel assays...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28928842/significant-response-to-ramucirumab-monotherapy-in-chemotherapy-resistant-recurrent-alpha-fetoprotein-producing-gastric-cancer-a-case-report
#16
Yasuhiro Arakawa, Miho Tamura, Keisuke Aiba, Kazuhiko Morikawa, Daisuke Aizawa, Masahiro Ikegami, Masami Yuda, Katsunori Nishikawa
Alpha-fetoprotein (AFP)-producing gastric cancer (AFPGC) is a relatively rare type of gastric cancer characterized by a high incidence of liver and lymph node metastases, and a poor prognosis. Few advanced AFPGC cases treated successfully with conventional chemotherapy have been reported thus far. Although the development of molecular-targeted therapy has improved the prognosis of various types of cancer, there are currently no tailored therapies for AFPGC. In the present report, the case of a chemotherapy-resistant recurrent AFPGC patient who exhibited a significant response to ramucirumab monotherapy is presented...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28928122/discovery-and-preclinical-characterization-of-gsk1278863-daprodustat-a-small-molecule-hypoxia-inducible-factor-hif-prolyl-hydroxylase-inhibitor-for-anemia
#17
Jennifer L Ariazi, Kevin J Duffy, David F Adams, Duke M Fitch, Lusong Luo, Melissa Pappalardi, Mangatt Biju, Erin Hugger DiFilippo, Tony Shaw, Ken Wiggall, Connie Erickson-Miller
Decreased erythropoietin (EPO) production, shortened erythrocyte survival, and other factors reducing the response to EPO contribute to anemia in patients with a variety of underlying pathologies such as chronic kidney disease (CKD). Treatment with recombinant human EPO (rHuEPO) at supraphysiological concentrations has proven to be efficacious. However, it does not ameliorate the condition in all patients and presents its own risks, including cardiovascular complications. The transcription factors hypoxia-inducible factor (HIF)1α and HIF2α control the physiological response to hypoxia and invoke a program of increased erythropoeisis...
September 19, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28928080/vascular-endothelial-growth-factor-driving-aberrant-keratin-expression-pattern-contributes-to-the-pathogenesis-of-psoriasis
#18
Man Jiang, Bing Li, Jieyu Zhang, Lei Hu, Erle Dang, Gang Wang
Psoriasis is a chronic inflammatory skin disease severely affecting patients' physical and psychological well-being. Aberrant keratin expression in psoriasis plays a crucial role in keratinocyte dysfunction and disease development. Little is yet known about the mechanism of this keratin dysregulation. VEGF (Vascular endothelial growth factor) is significantly elevated in psoriatic patients and VEGFRs are detected on keratinocytes, leading to our hypothesis that this keratin dysregulation may be regulated by VEGF...
September 16, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28927933/azopolymer-photopatterning-for-directional-control-of-angiogenesis
#19
Chiara Fedele, Maria De Gregorio, Paolo A Netti, Silvia Cavalli, Chiara Attanasio
Understanding cellular behavior in response to microenvironmental stimuli is central to tissue engineering. An increasing number of reports emphasize the high sensitivity of cells to the physical characteristics of the surrounding milieu and in particular, topographical cues. In this work, we investigated the influence of dynamic topographic signal presentation on sprout formation and the possibility to obtain a space-time control over sprouting directionality without growth factors, in order to investigate the contribution of just topography in the angiogenic process...
September 16, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28927665/fgd5-sustains-vascular-endothelial-growth-factor-a-vegfa-signaling-through-inhibition-of-proteasome-mediated-vegf-receptor-2-degradation
#20
Johan Heldin, Paul O'Callaghan, Rodrigo Hernández Vera, Peder Fredlund Fuchs, Pär Gerwins, Johan Kreuger
The complete repertoire of endothelial functions elicited by FGD5, a guanine nucleotide exchange factor activating the Rho GTPase Cdc42, has yet to be elucidated. Here we explore FGD5's importance during vascular endothelial growth factor A (VEGFA) signaling via VEGF receptor 2 (VEGFR2) in human endothelial cells. In microvascular endothelial cells, FGD5 is located at the inner surface of the cell membrane as well as at the outer surface of EEA1-positive endosomes carrying VEGFR2. The latter finding prompted us to explore if FGD5 regulates VEGFR2 dynamics...
September 16, 2017: Cellular Signalling
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