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Proangiogenesis vegf

Zhengfeng Wang, Ruihua Wang, Kai Wang, Xianzhi Liu
Angiogenesis after ischemic stroke have important clinical significance, which stimulates endogenous recovery mechanisms and improves the neurological outcome. Enhancing angiogenesis may facilitate the function recovery from ischemic stroke. Recent studies have shown that aberrant expression of long non-coding RNAs (lncRNAs) is related to angiogenesis after ischemic stroke. Snhg1, a cancer-related lncRNA, has been reported to be upregulated after stroke. However, little is known about its role in stroke. In this study, we performed in vitro experiments to investigate the effects of Snhg1 on cell survival and angiogenesis and molecular mechanism in ischemic stroke...
June 8, 2018: Canadian Journal of Physiology and Pharmacology
Shuangshuang Li, Li Li, Chengrui Guo, Huanhuan Qin, Xixun Yu
Effectively stimulating angiogenesis is great challenge in wound care management. It's necessary to develop a new wound dressing with angiogenic capacity. Therefore, strontium loaded SF/SA blend films were prepared as a potential wound dressing material, and their physicochemical and bioactive properties were evaluated. The strontium loaded SF/SA blend films (especially the strontium loaded SF/SA blend films prepared by treating with 5mg/ml Sir solution) could meet the needs of a wound dressing such as water absorption, water vapor transmission rate, mechanical properties and fibroblasts-cytocompatibility...
November 2017: International Journal of Biological Macromolecules
Meng Xie, Dafydd Alwyn Dart, Ting Guo, Xiao-Fang Xing, Xiao-Jing Cheng, Hong Du, Wen G Jiang, Xian-Zi Wen, Jia-Fu Ji
BACKGROUND: We recently reported that miR-1 was one of the most significantly downregulated microRNAs in gastric cancer (GC) patients from The Cancer Genome Atlas microRNA sequencing data. Here we aim to elucidate the role of miR-1 in gastric carcinogenesis. METHODS: We measured miR-1 expression in human GC cell lines and 90 paired primary GC samples, and analyzed the association of its status with clinicopathological features. The effect of miR-1 on GC cells was evaluated by proliferation and migration assay...
January 2018: Gastric Cancer
Leila Chodari, Mustafa Mohammadi, Vajiheh Ghorbanzadeh, Hassan Dariushnejad, Gisou Mohaddes
OBJECTIVES: Impaired angiogenesis in cardiac tissue is a major complication of diabetes. This study was aimed to evaluate the effects of testosterone and voluntary exercise on vascular endothelial growth factor-A (VEGF-A), stromal cell-derived factor 1a (SDF-1a) and myocardial capillary density in heart of rats with diabetes. METHODS: Type 1 diabetes was induced by intraperitoneal injection of 55 mg/kg of streptozotocin in 80 male Wistar rats. After 42 days of treatment with testosterone (2 mg/kg/day) or voluntary exercise alone or in combination, angiogenesis was determined in the hearts by immunostaining for PECAM-1/CD31...
October 2016: Canadian Journal of Diabetes
Xiaoping Zhang, Weishuai Lian, Wensheng Lou, Shilong Han, Chenhui Lu, Keqiang Zuo, Haobo Su, Jichong Xu, Chuanwu Cao, Tao Tang, Zhongzhi Jia, Tao Jin, Georges Uzan, Jianping Gu, Maoquan Li
Microvascular lesion in diabetic peripheral arterial disease (PAD) still cannot be resolved by current surgical and interventional technique. Endothelial cells have the therapeutic potential to cure microvascular lesion. To evaluate the efficacy and immune-regulatory impact of intra-arterial infusion of autologous CD133(+) cells, we recruited 53 patients with diabetic PAD (27 of CD133(+) group and 26 of control group). CD133(+) cells enriched from patients' PB-MNCs were reinfused intra-arterially. The ulcer healing followed up till 18 months was 100% (3/3) in CD133(+) group and 60% (3/5) in control group...
2016: Stem Cells International
Jinyan Li, Dong Zhai, Fang Lv, Qingqing Yu, Hongshi Ma, Jinbo Yin, Zhengfang Yi, Mingyao Liu, Jiang Chang, Chengtie Wu
UNLABELLED: Effectively stimulating angiogenesis and avoiding wound infection are great challenges in wound care management. Designing new healing dressings with requisite angiogenic capacity and antibacterial performance is of particular significance. In order to achieve this aim, we prepared a copper (Cu)-containing bioactive glass nanocoating (40-50nm) with uniform nanostructure on natural eggshell membrane (Cu-BG/ESM) by the pulsed laser deposition (PLD) technique. The surface physicochemical properties including hydrophilicity and hardness of ESM were significantly improved after depositing Cu-BG nanocoatings...
May 2016: Acta Biomaterialia
Feng Wu, Zhiqing He, Ru Ding, Zhigang Huang, Qixia Jiang, Haiming Cui, Yi Lin, Shuaibo Huang, Xianliang Dai, Jiayou Zhang, Zonggui Wu, Chun Liang
The aim of this paper is to investigate effect and mechanism of Danhong injection (DH) on angiogenesis in the diabetic hind limb ischemia mouse model. Thirty diabetic hind limb ischemic model mice and ten normal mice, established by intraperitoneal (i.p.) injection of streptozotocin (STZ) or PBS and ligation/excision of femoral artery, and then twenty diabetic hind limb ischemic model mice of all were evenly randomized to saline (control, n = 10) and DH i.p. injection (2 mL/kg weight for 7 days, n = 10) groups...
2015: Evidence-based Complementary and Alternative Medicine: ECAM
Lin Lin, Wen Sun, Lishuang Wang
OBJECTIVE: To explore the effects of bone marrow-derived mesenchymal stem cell (MSC) on angiogenesis of cervical cancer cell. METHODS: MSCs from umbilical cord were mixed with cervical cancer cell line HeLa cells and subcutaneously plated in armpit area of nude mice to examine the in vivo tumor growth. Micro-vessel density (MVD) in tumor tissue was examined by CD34 immunohistochemical staining. Enzyme-linked immunosorbent assay (ELISA) and real-time polymerase chain reaction (PCR) were employed to detect the expression of proangiogenesis factors...
April 21, 2015: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Masabumi Shibuya
The vascular endothelial growth factor (VEGF)-VEGF receptor (R) system is deeply involved in angiogenesis and lymphangiogenesis. VEGFR1/ Fms-like tyrosine kinase-1 (Flt-1) and VEGFR2 are significantly expressed in vascular endothelial cells, where they transfer proangiogenic signals. Particularly, VEGFR2 has strong tyrosine kinase activity; thus, the major and direct angiogenic signals are generated from VEGFR2. VEGFR3 is specifically expressed in lymphatic endothelial cells, generating the main signal for lymphangiogenesis...
2015: Endocrine, Metabolic & Immune Disorders Drug Targets
Qi-feng Li, Xue-qin Ding, Y James Kang
Copper stimulation of angiogenesis at the organ system level is vascular endothelial growth factor (VEGF) dependent, but copper stimulation of vascular endothelial cell proliferation in cultures is VEGF independent. The present study was undertaken to use isolated rat aortic rings to understand the seemly controversial observations between in vivo and in vitro studies. The thoracic aorta was isolated from Sprague Dawley rats (8-10 weeks) and sectioned into 1.0-mm thick vascular rings for culturing. Copper sulfide at a final concentration of 5, 25, 50 or 100 μM was added to the cultures and maintained for 8 days...
January 2014: Journal of Nutritional Biochemistry
Zhen Chen, Tsung-Ching Lai, Yi-Hua Jan, Feng-Mao Lin, Wei-Chi Wang, Han Xiao, Yun-Ting Wang, Wei Sun, Xiaopei Cui, Ying-Shiuan Li, Tzan Fang, Hongwei Zhao, Chellappan Padmanabhan, Ruobai Sun, Danny Ling Wang, Hailing Jin, Gar-Yang Chau, Hsien-Da Huang, Michael Hsiao, John Y-J Shyy
Despite a general repression of translation under hypoxia, cells selectively upregulate a set of hypoxia-inducible genes. Results from deep sequencing revealed that Let-7 and miR-103/107 are hypoxia-responsive microRNAs (HRMs) that are strongly induced in vascular endothelial cells. In silico bioinformatics and in vitro validation showed that these HRMs are induced by HIF1α and target argonaute 1 (AGO1), which anchors the microRNA-induced silencing complex (miRISC). HRM targeting of AGO1 resulted in the translational desuppression of VEGF mRNA...
March 2013: Journal of Clinical Investigation
H Li, J Chang
Angiogenesis is critical in tissue engineering, and bioceramic-induced angiogenesis has been reported. However, the role of other types of cells such as fibroblasts in this bioceramic-induced angiogenesis process has not been reported, and is closer to the in vivo situation of tissue regeneration. In this study, the paracrine effect of silicate bioceramic-induced angiogenesis in the presence of fibroblasts was confirmed by investigating the effects of calcium silicate (CS), one of the simplest silicate bioactive ceramics, on angiogenesis in co-cultures of human dermal fibroblasts (HDF) and human umbilical vein endothelial cells (HUVEC)...
June 2013: Acta Biomaterialia
Mysoon M Al-Ansari, Siti-Fauziah Hendrayani, Asma Tulbah, Taher Al-Tweigeri, Afaf I Shehata, Abdelilah Aboussekhra
Stromal fibroblasts, the most abundant and probably the most active cellular component of breast cancer-associated stroma, become active and promote angiogenesis through paracrine effects. However, it still unclear how these processes are regulated. Here, we have shown that down-regulation of the tumor suppressor p16(INK4A) protein enhances the migration/invasion abilities of breast stromal fibroblasts, which form dendritic network of extensions into matrigel. Furthermore, we present clear evidence that p16(INK4A) represses the expression/secretion of the proangiogenesis protein vascular endothelial growth factor A (VEGF-A)...
December 2012: Neoplasia: An International Journal for Oncology Research
Shengtao Zhou, Tao Yi, Rui Liu, Ce Bian, Xiaorong Qi, Xiang He, Kui Wang, Jingyi Li, Xia Zhao, Canhua Huang, Yuquan Wei
Adenomyosis is a common estrogen-dependent disorder of females characterized by a downward extension of the endometrium into the uterine myometrium and neovascularization in ectopic lesions. It accounts for chronic pelvic pain, dysmenorrhea, menorrhagia, and infertility in 8.8-61.5% women worldwide. However, the molecular mechanisms for adenomyosis development remain poorly elucidated. Here, we utilized a two-dimensional polyacrylamide gel electrophoresis/MS-based proteomics analysis to compare and identify differentially expressed proteins in matched ectopic and eutopic endometrium of adenomyosis patients...
July 2012: Molecular & Cellular Proteomics: MCP
Arthur Kwok Leung Cheung, Josephine M Y Ko, Hong Lok Lung, Kwok Wah Chan, Eric J Stanbridge, Eugene Zabarovsky, Takashi Tokino, Lisa Kashima, Toshiharu Suzuki, Dora Lai-Wan Kwong, Daniel Chua, Sai Wah Tsao, Maria Li Lung
Chromosome 14 was transferred into tumorigenic nasopharyngeal carcinoma and esophageal carcinoma cell lines by a microcell-mediated chromosome transfer approach. Functional complementation of defects present in the cancer cells suppressed tumor formation. A candidate tumor-suppressor gene, cysteine-rich intestinal protein 2 (CRIP2), located in the hot spot for chromosomal loss at 14q32.3, was identified as an important candidate gene capable of functionally suppressing tumor formation. Previous studies have shown that CRIP2 is associated with development...
May 17, 2011: Proceedings of the National Academy of Sciences of the United States of America
Iqbal Ahmad, Sudha Balasubramanian, Carolina B Del Debbio, Sowmya Parameswaran, Allen R Katz, Carol Toris, Robert N Fariss
PURPOSE: Wet age-related macular degeneration (AMD), which accounts for most AMD-related vision loss, is characterized by choroidal neovascularization (CNV). The underlying mechanism of CNV is poorly understood, but evidence indicates pathologic recruitment of normal angiogenic signaling pathways such as the VEGF pathway. Recent evidence suggests that the VEGF pathway regulates angiogenesis in concert with Notch signaling. Here, the authors examined the role of Notch signaling in CNV in the backdrop of Notch signaling-mediated regulation of retinal angiogenesis...
May 2, 2011: Investigative Ophthalmology & Visual Science
Shigetoshi Mieno, Munir Boodhwani, Michael P Robich, Richard T Clements, Neel R Sodha, Frank W Sellke
BACKGROUND: This study examined effects of diabetes mellitus (DM) on cellular proliferation associated with vascular endothelial growth factor (VEGF) signaling in endothelial progenitor cells (EPCs) and evaluated protein expression involved in cellular proliferation and proapoptotic signaling in chronically ischemic myocardium. METHODS: Insulin-dependent DM was induced in yucatan miniswine with alloxan. Eight weeks after induction, chronic ischemia was induced by ameroid constrictor placement around the circumflex coronary artery...
September 2010: Journal of Cardiac Surgery
T E Stinchcombe, M A Socinski
Lung cancer is the leading cause of cancer death in the United States. The majority of patients present with advanced disease, and treatment with standard cytotoxic chemotherapy improves survival and quality of life in patients with a preserved functional status. However, the prognosis is poor with the majority of patients dying in less than a year. Treatment with standard cytotoxic chemotherapy has reached a therapeutic plateau, and new therapeutic approaches have investigated therapies that target the specific molecular pathways involved in carcinogenesis and angiogenesis...
May 28, 2007: Oncogene
S A Mousa, X Feng, J Xie, Y Du, Y Hua, H He, L O'Connor, R J Linhardt
To determine the proangiogenesis effect of series of saccharides and a synthetic oligosaccharide and potential mechanisms, an in vitro 3-dimensional endothelial cell sprouting (3D-ECS) assay and the chick chorioallantoic membrane (CAM) model were used. We demonstrated that a sulfated oligosaccharide significantly promotes the endothelial capillary network initiated by vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (b-FGF). Furthermore, although the capillary network initiated by VEGF and b-FGF lasts no more than 7 days, addition of a sulfated oligosaccharide significantly amplifies angiogenesis and stabilizes the capillary network of new blood vessels...
August 2006: Journal of Cardiovascular Pharmacology
D J Stewart, J D Hilton, J M O Arnold, J Gregoire, A Rivard, S L Archer, F Charbonneau, E Cohen, M Curtis, C E Buller, F O Mendelsohn, N Dib, P Page, J Ducas, S Plante, J Sullivan, J Macko, C Rasmussen, P D Kessler, H S Rasmussen
The demonstration that angiogenic growth factors can stimulate new blood vessel growth and restore perfusion in animal models of myocardial ischemia has led to the development of strategies designed for the local production of angiogenic growth factors in patients who are not candidates for conventional revascularization. The results of recent clinical trials of proangiogenesis gene therapy have been disappointing; however, significant limitations in experimental design, in particular in gene transfer strategies, preclude drawing definitive conclusions...
November 2006: Gene Therapy
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