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https://www.readbyqxmd.com/read/29232705/etv2-mir-130a-jarid2-cascade-regulates-vascular-patterning-during-embryogenesis
#1
Bhairab N Singh, Naoyuki Tahara, Yasuhiko Kawakami, Satyabrata Das, Naoko Koyano-Nakagawa, Wuming Gong, Mary G Garry, Daniel J Garry
Remodeling of the primitive vasculature is necessary for the formation of a complex branched vascular architecture. However, the factors that modulate these processes are incompletely defined. Previously, we defined the role of microRNAs (miRNAs) in endothelial specification. In the present study, we further examined the Etv2-Cre mediated ablation of DicerL/L and characterized the perturbed vascular patterning in the embryo proper and yolk-sac. We mechanistically defined an important role for miR-130a, an Etv2 downstream target, in the mediation of vascular patterning and angiogenesis in vitro and in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/29232521/an-immunoglobulin-fc-fused-peptide-without-c-terminal-arg-or-lys-residue-augments-neuropilin-1-dependent-tumor-vascular-permeability
#2
Du-San Baek, Jeong-Ho Kim, Ye-Jin Kim, Yong-Sung Kim
Neuropilin-1 (NRP1), which functions as a co-receptor for vascular endothelial growth factor (VEGF) and is implicated in vascular permeability and tumorigenesis, has been targeted by peptides that specifically bind to the VEGF-binding region on NRP1. Like natural VEGF ligands, all known peptides with NRP1-binding activity bind only through a carboxy (C)-terminal R/K-x-x-R/K sequence motif (x stands for any amino acids); this strict requirement is called the C-end rule (CendR). Here, we report immunoglobulin Fc-fused NRP1-specific peptides deviating from CendR...
December 12, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29232465/new-treatments-in-ovarian-cancer
#3
E Pujade-Lauraine
In targeting DNA repair pathways of the most genomic instable cancer, poly-(adenosine diphosphate [ADP])-ribose polymerase inhibitors (PARPi) have been demonstrated as the most effective drug since platinum in high grade serous or endometrioid ovarian cancer. Immunotherapy is strongly pushing the door of ovarian cancer and has the ambition to change the fate of this deadly disease when combined with chemotherapy, vascular endothelial growth factor inhibitor or PARPi. The activity of PARPi could also be improved by modulators of the cell cycle, which are required to give time enough for DNA repair...
November 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29232409/lupeol-and-stigmasterol-suppress-tumor-angiogenesis-and-inhibit-cholangiocarcinoma-growth-in-mice-via-downregulation-of-tumor-necrosis-factor-%C3%AE
#4
Thaned Kangsamaksin, Supattra Chaithongyot, Chanida Wootthichairangsan, Rattanavinan Hanchaina, Chayada Tangshewinsirikul, Jisnuson Svasti
Lupeol and stigmasterol, major phytosterols in various herbal plants, possess anti-inflammatory activities and have been proposed as candidates for anti-cancer agents, but their molecular mechanisms are still unclear. Here, we investigated the effects of lupeol and stigmasterol on tumor and endothelial cells in vitro and their anti-cancer activities in vivo. Our results demonstrated that lupeol and stigmasterol suppressed cell viability, migration, and morphogenesis of human umbilical vein endothelial cells (HUVECs) but not cholangiocarcinoma (CCA) cells...
2017: PloS One
https://www.readbyqxmd.com/read/29232396/fatty-acids-rather-than-hormones-restore-in-vitro-angiogenesis-in-human-male-and-female-endothelial-cells-cultured-in-charcoal-stripped-serum
#5
Claudia Vanetti, Francesco Bifari, Lucia M Vicentini, Maria Grazia Cattaneo
Charcoal-stripped serum (CSS) is a well-accepted method to model effects of sex hormones in cell cultures. We have recently shown that human endothelial cells (ECs) fail to growth and to undergo in vitro angiogenesis when cultured in CSS. However, the mechanism(s) underlying the CSS-induced impairment of in vitro EC properties are still unknown. In addition, whether there is any sexual dimorphism in the CSS-induced EC phenotype remains to be determined. Here, by independently studying human male and female ECs, we found that CSS inhibited both male and female EC growth and in vitro angiogenesis, with a more pronounced effect on male EC sprouting...
2017: PloS One
https://www.readbyqxmd.com/read/29232298/use-of-a-new-expanded-polytetrafluoroethylene-multichordal-mitral-apparatus-mitrapatch-to-repair-complex-mitral-valve-lesions
#6
Surendra K Chawla, Muralidhar Padala, W Randolph Chitwood, Robert W M Frater
OBJECTIVE: We report a new expanded polytetrafluoroethylene multichordal mitral apparatus (MitraPatch) to simplify mitral repairs involving multiple cusps and sought to describe the surgical technique and demonstrate the efficacy of the device. METHODS: MitraPatch was laser cut from a single sheet of expanded polytetrafluoroethylene and mounted on a custom-designed handle. Surgical technique to deploy the apparatus on the native mitral valve was developed in ex vivo porcine hearts...
December 7, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29232287/the-effects-of-known-cardioprotective-drugs-on-proinflammatory-cytokine-secretion-from-human-coronary-artery-endothelial-cells
#7
Michael J Haas, Marilu Jurado-Flores, Ramadan Hammoud, Victoria Feng, Krista Gonzales, Luisa Onstead-Haas, Arshag D Mooradian
BACKGROUND: Endothelial cell dysfunction in diabetes is involved in the pathogenesis and progression of premature atherosclerosis. High-dextrose has been shown to induce both oxidative stress and endoplasmic reticulum stress in cultured human coronary artery endothelial cells (HCAEC). STUDY QUESTION: To determine whether or not several classes of cardioprotective drugs inhibit proinflammatory cytokine expression by HCAEC. MEASURES AND OUTCOMES: To determine the effects of high dextrose on expression of proinflammatory cytokines by HCAEC, cells were treated with either 5...
November 27, 2017: American Journal of Therapeutics
https://www.readbyqxmd.com/read/29232190/the-effects-of-curcuma-longa-and-curcumin-on-reproductive-systems
#8
R Mohebbati, A Anaeigoudari, M R Khazdair
OBJECTIVE: Curcuma longa (C. longa) was used in some countries such as China and India for various medicinal purposes. Curcumin, the active component of C. longa, is commonly used as a coloring agent in foods, drugs, and cosmetics. C. longa and curcumin have been known to act as antioxidant, anti-inflammatory, anti-mutagen, and anti-carcinogenic agents. Th e attempt of the present review was to give an effort on a detailed literature survey concentrated on the protective effects of C...
October 26, 2017: Endocrine Regulations
https://www.readbyqxmd.com/read/29232009/effect-of-the-wnt-%C3%AE-catenin-signaling-pathway-on-apoptosis-migration-and-invasion-of-transplanted-hepatocellular-carcinoma-cells-after-transcatheter-arterial-chemoembolization-in-rats
#9
Bao-Ming Wang, Nuo Li
This study aims to investigate the influence of the Wnt/β-catenin signaling pathway on apoptosis, migration and invasion of transplanted hepatocellular carcinoma (HCC) cells after transcatheter arterial chemoembolization (TACE) in rat models. A total of 60 rats were grouped into sham, TACE, Wnt-C59 and TACE + Wnt-C59 groups (n = 20). Ten days after model establishment, 10 rats in each group were executed to perform pathological examination and follow-up experiment, and the remaining 10 rats in each group were reared to observe the survival condition...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29232002/effects-of-microrna-93-on-mouse-cardiac-microvascular-endothelial-cells-injury-and-inflammatory-response-by-mediating-spp1-through-the-nf-%C3%AE-b-pathway
#10
Su-Xia Ma, Zhi-Feng Bai, Wei Wang, Hui-Ying Wu
BACKGROUND: This study aims to investigate the regulative role of microRNA-93 (miR-93) in mouse cardiac microvascular endothelial cells (CMECs) injury and inflammatory response by negatively targeting SPP1 gene via the NF-κB signaling pathway. METHODS: Healthy Balb/c mice were recruited to establish mouse model with myocarditis using CVB3 virus. Mice were grouped into the normal, blank, negative control (NC), miR-93 inhibitor, miR-93 mimic, SPP1 shRNA and miR-93 mimic + SPP1 shRNA groups...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29231907/activated-hgf-c-met-axis-in-head-and-neck-cancer
#11
REVIEW
Levi Arnold, Jonathan Enders, Sufi Mary Thomas
Head and neck squamous cell carcinoma (HNSCC) is a highly morbid disease. Recent developments including Food and Drug Administration (FDA) approved molecular targeted agent's pembrolizumab and cetuximab show promise but did not improve the five-year survival which is currently less than 40%. The hepatocyte growth factor receptor; also known as mesenchymal-epithelial transition factor (c-Met) and its ligand hepatocyte growth factor (HGF) are overexpressed in head and neck squamous cell carcinoma (HNSCC); and regulates tumor progression and response to therapy...
December 12, 2017: Cancers
https://www.readbyqxmd.com/read/29231815/endothelial-cells-express-nkg2d-ligands-and-desensitize-anti-tumor-nk-responses
#12
Thornton W Thompson, Alexander Byungsuk Kim, Po-Yi Jonathan Li, Jiaxi Wang, Benjamin T Jackson, Kristen Ting Hui Huang, Lily Zhang, David H Raulet
Natural Killer (NK) cells confer protection from tumors and infections by releasing cytotoxic granules and pro-inflammatory cytokines upon recognition of diseased cells. The responsiveness of NK cells to acute stimulation is dynamically tuned by steady-state receptor-ligand interactions of an NK cell with its cellular environment. Here we demonstrate that in healthy WT mice the NK activating receptor NKG2D is engaged in vivo by one of its ligands, RAE-1ε, which is expressed constitutively by lymph node endothelial cells and highly induced on tumor-associated endothelium...
December 12, 2017: ELife
https://www.readbyqxmd.com/read/29231798/n-cadherin-knockdown-leads-to-disruption-of-trophoblastic-and-endothelial-cell-interaction-in-a-3d-cell-culture-model-new-insights-in-trophoblast-invasion-failure
#13
A Multhaup, B Huppertz, C Göhner, M Böhringer, M Mai, U Markert, E Schleußner, T Groten
INTRODUCTION: Trophoblast homing to maternal spiral arteries is mandatory for successful placentation. Cell-cell adhesion molecules regulate this process and adhesion molecule expression is altered in impaired placentation. We hypothesize that, similar to immune cell recruitment, trophoblast cell adherence and rolling are primarily mediated by adhesion molecules like, cadherins, immunoglobulins, selectins and their partnering ligands. Here, the interdependence of adhesion molecule expression in trophoblastic cell lines of diverse origin was investigated in relation to their interaction with endothelial cell networks on Matrigel® co-cultures and the effect of specific adhesion molecule knockdown analyzed...
December 12, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/29231707/sulfonate-groups-and-saccharides-as-essential-structural-elements-in-heparin-mimicking-polymers-used-as-surface-modifiers-optimization-of-relative-contents-for-anti-thrombogenic-properties
#14
Xianshuang Chen, Hao Gu, Zhonglin Lyu, Xiaoli Liu, Lei Wang, Hong Chen, John Law Brash
Blood compatibility is a long sought-after goal in biomaterials research, but remains an elusive one, and in spite of extensive work in this area, there is still no definitive information on the relationship between material properties and blood responses such as coagulation and thrombus formation. Materials modified with heparin-mimicking polymers (HMP) have shown promise, and indeed may be seen as comparable to materials modified with heparin itself. In this work, heparin was conceptualized as consisting of two major structural elements: saccharide-containing and sulfonate-containing units, and polymers based on this concept were developed...
December 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29230983/-the-changes-of-hif-1%C3%AE-and-vegf-a-in-myocardial-tissue-of-rats-with-arrhythmias
#15
Y Zhang, Z P Cao, R M Mao, Z B Du, L Mi, X Y Luo, M H Tian, B L Zhu
OBJECTIVES: To observe the expression changes of hypoxia inducible factor-1α(HIF-1α) and vascular endothelial growth factor-A (VEGF-A) in rats with arrhythmias, and to explore the differences of the expression pattern in the two indicators of acute myocardial ischemia caused by arrhythmias and coronary insufficiency. METHODS: The arrhythmia was induced by CaCl₂, and the expression changes of HIF-1α and VEGF-A were detected by immunohistochemistry, Western blotting and real-time PCR within 6 h after the arrhythmia in rats...
June 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29230909/histatins-wound-healing-and-cell-migration
#16
Pedro Torres, Martín Castro, Montserrat Reyes, Vicente A Torres
Wounds in the oral mucosa heal faster and more efficiently than those in the skin, although the mechanisms underlying these differences are not completely clear. In the last 10 years, a group of salivary peptides, the histatins, have gained attention on behalf of their ability to improve several phases of the wound healing process. In addition to their roles as antimicrobial agents and in enamel maintenance, histatins elicit other biological effects, namely by promoting the migration of different cell types contained in the oral mucosa and in non-oral tissues...
December 12, 2017: Oral Diseases
https://www.readbyqxmd.com/read/29230610/predictive-value-of-vascular-endothelial-growth-factor-receptor-type-2-in-triple-negative-breast-cancer-patients-treated-with-neoadjuvant-chemotherapy
#17
Nataliya Babyshkina, Marina Zavyalova, Natalia Tarabanovskaya, Tatyana Dronova, Nadejda Krakhmal, Elena Slonimskaya, Julia Kzhyshkowska, Evgeny Choynzonov, Nadejda Cherdyntseva
The identification of informative biomarkers that could predict the treatment response is particularly important in the triple-negative (TN) breast cancer, which is characterized by biological diversity. The aim of this study was to investigate the impact of vascular endothelial growth factor receptor (VEGFR2) expression and its gene polymorphisms on pathologic complete response (pCR) to neoadjuvant chemotherapy (NCT) in Russian patients with TN breast cancer. We performed a retrospective analysis of 70 women with operable TN breast cancer, who underwent NCT with 5-fluorouracil, adriamycin, and cyclophosphamide (FAC) or cyclophosphamide, adriamycin, and capecitabine (CAX) between 2007 and 2013...
December 11, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29230433/proangiogenic-activity-of-endometrial-epithelial-and-stromal-cells-in-response-to-estradiol-in-gelatin-hydrogels
#18
Jacquelyn C Pence, Kathryn B H Clancy, Brendan A C Harley
Biomaterial vascularization remains a major focus in the field of tissue engineering. Biomaterial culture of endometrial cells is described as a platform to inform the design of proangiogenic biomaterials. The endometrium undergoes rapid growth and shedding of dense vascular networks during each menstrual cycle mediated via estradiol and progesterone in vivo. Cocultures of endometrial epithelial and stromal cells encapsulated within a methacrylamide-functionalized gelatin hydrogel are employed. It is reported that proangiogenic gene expression profiles and vascular endothelial growth factor production are hormone dependent in endometrial epithelial cells, but that hormone signals have no effect on human telomerase reverse transcriptase (hTERT)-immortalized endometrial stromal cells...
September 2017: Advanced Biosystems
https://www.readbyqxmd.com/read/29230255/control-of-cell-proliferation-by-a-porous-chitosan-scaffold-with-multiple-releasing-capabilities
#19
Shu-Jyun Cai, Ching-Wen Li, Daphne Weihs, Gou-Jen Wang
The aim of this study was to develop a porous chitosan scaffold with long-acting drug release as an artificial dressing to promote skin wound healing. The dressing was fabricated by pre-freezing at different temperatures (-20 and -80 °C) for different periods of time, followed by freeze-drying to form porous chitosan scaffolds with different pore sizes. The chitosan scaffolds were then used to investigate the effect of the controlled release of fibroblast growth factor-basic (bFGF) and transforming growth factor-β1 (TGFβ1) on mouse fibroblast cells (L929) and bovine carotid endothelial cells (BEC)...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/29230182/a-network-model-to-explore-the-effect-of-the-micro-environment-on-endothelial-cell-behavior-during-angiogenesis
#20
Nathan Weinstein, Luis Mendoza, Isidoro Gitler, Jaime Klapp
Angiogenesis is an important adaptation mechanism of the blood vessels to the changing requirements of the body during development, aging, and wound healing. Angiogenesis allows existing blood vessels to form new connections or to reabsorb existing ones. Blood vessels are composed of a layer of endothelial cells (ECs) covered by one or more layers of mural cells (smooth muscle cells or pericytes). We constructed a computational Boolean model of the molecular regulatory network involved in the control of angiogenesis...
2017: Frontiers in Physiology
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