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https://www.readbyqxmd.com/read/28640929/modulation-of-tumor-microenvironment-by-chemopreventive-natural-products
#1
REVIEW
Sin-Aye Park, Young-Joon Surh
The tumor microenvironment provides a niche in which cancer cells and their surrounding stromal cells reside and in which their interactions occur. The cross talk between cancer and stromal cells in the tumor microenvironment promotes many biological processes to support cancer cell growth, invasion, angiogenesis, and metastasis. Recently, not only cancer cells but also multiple types of surrounding stromal cells, including endothelial cells, immune cells, and fibroblasts in the tumor microenvironment, have been recognized to be attractive targets for reducing resistance to anticancer therapy and tumor recurrence...
June 22, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28639899/tweak-fn14-signaling-in-tumors
#2
Guanglei Hu, Weihui Zeng, Yumin Xia
TWEAK (tumor necrosis factor-related weak inducer of apoptosis), a member of the tumor necrosis factor superfamily, acts on cells by binding to its only receptor named Fn14 (fibroblast growth factor-inducible 14). Their engagement activates a number of intracellular signal transduction cascades and consequently leads to cell death, proliferation, migration, or survival depending on the cellular contexts. Studies have indicated that the expression of TWEAK and Fn14 is upregulated in many solid tumors compared with healthy tissues...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28624705/controlled-release-of-basic-fibroblast-growth-factor-for-angiogenesis-using-acoustically-responsive-scaffolds
#3
Alexander Moncion, Melissa Lin, Eric G O'Neill, Renny T Franceschi, Oliver D Kripfgans, Andrew J Putnam, Mario L Fabiilli
The clinical translation of pro-angiogenic growth factors for treatment of vascular disease has remained a challenge due to safety and efficacy concerns. Various approaches have been used to design spatiotemporally-controlled delivery systems for growth factors in order to recapitulate aspects of endogenous signaling and thus assist in translation. We have developed acoustically-responsive scaffolds (ARSs), which are fibrin scaffolds doped with a payload-containing, sonosensitive emulsion. Payload release can be controlled non-invasively and in an on-demand manner using focused, megahertz-range ultrasound (US)...
June 9, 2017: Biomaterials
https://www.readbyqxmd.com/read/28620193/microrna-29a-counteracts-synovitis-in-knee-osteoarthritis-pathogenesis-by-targeting-vegf
#4
Jih-Yang Ko, Mel S Lee, Wei-Shiung Lian, Wen-Tsan Weng, Yi-Chih Sun, Yu-Shan Chen, Feng-Sheng Wang
Synovitis contributes to the development of osteoarthritis (OA) of the knee. MicroRNAs regulate joint microenvironment homeostasis and deterioration. This study was undertaken to characterize the actions of microRNA-29a (miR-29a) to synovial remodeling in OA joints. Synovial specimens isolated from patients with end-stage OA knees showed abundant fibrotic matrix and vessel histopathology concomitant with weak miR-29a expression. In vitro, miR-29a knockdown caused synovial fibroblasts to exhibit high expressions of collagen III, TGF-β1, MMP9, MMP13, and ADAMTS5, whereas miR-29a overexpression diminished these joint-deleterious factors...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28619711/igfbp7-deletion-promotes-hepatocellular-carcinoma
#5
Maaged Akiel, Chunqing Guo, Xia Li, Devaraja Rajasekaran, Rachel G Mendoza, Chadia L Robertson, Nidhi Jariwala, Fang Yuan, Mark A Subler, Jolene Windle, Dawn K Garcia, Zhao Lai, Hung-I Harry Chen, Yidong Chen, Shah Giashuddin, Paul B Fisher, Xiang-Yang Wang, Devanand Sarkar
Activation of IGF signaling is a major oncogenic event in diverse cancers, including hepatocellular carcinoma (HCC). In this setting, the insulin-like growth factor binding protein IGFBP7 inhibits IGF signaling by binding the IGF-1 receptor (IGF-1R), functioning as a candidate tumor suppressor. IGFBP7 abrogates tumors by inhibiting angiogenesis and inducing cancer-specific senescence and apoptosis. Here we report that Igfbp7-deficient mice exhibit constitutively active IGF signaling, presenting with pro-inflammatory and immunosuppressive microenvironments and spontaneous liver and lung tumors occurring with increased incidence in carcinogen-treated subjects...
June 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28619014/prognostic-impact-of-blood-and-urinary-angiogenic-factor-levels-at-diagnosis-and-during-treatment-in-patients-with-osteosarcoma-a-prospective-study
#6
Marie-Dominique Tabone, Laurence Brugières, Sophie Piperno-Neumann, Marie-Ange Selva, Perrine Marec-Bérard, Hélène Pacquement, Cyril Lervat, Nadège Corradini, Jean-Claude Gentet, Rémy Couderc, Aurélie Chevance, Céline Mahier-Ait Oukhatar, Natacha Entz-Werle, Jean-Yves Blay, Marie-Cecile Le Deley
BACKGROUND: Angiogenesis is essential for the progression and metastatic spread of solid tumours. Expression of vascular endothelial growth factor (VEGF) has been linked to poor survival among osteosarcoma patients but the clinical relevance of monitoring blood and urine angiogenic factors is uncertain. The aim of this study was to determine the prognostic significance of blood VEGF and blood and urinary basic fibroblast growth factor (bFGF) levels in osteosarcoma patients, both at diagnosis and during treatment...
June 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28618962/amelioration-of-dalton-s-lymphoma-induced-angiogenesis-by-melatonin
#7
Rani Kumari, Kavita Rawat, Anupma Kumari, Anju Shrivastava
For tumor to grow beyond 1-2 mm(3) size, tumor recruits new blood vessels referred as angiogenesis; therefore, targeting angiogenesis can be a promising strategy to suppress cancer progression. In this study, in order to develop a good angiogenesis model, we investigated effect of Dalton's lymphoma on angiogenesis and further monitored the role of melatonin on regulation of angiogenesis. To evaluate angiogenesis, endothelial cells were isolated from main thoracic aorta and cultured in vitro in the presence or absence of Dalton's lymphoma supplemented with or without melatonin to monitor their role on its proliferation and migration, a hallmark of angiogenesis...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28617813/identification-of-padi2-as-a-novel-angiogenesis-regulating-gene-by-genome-association-studies-in-mice
#8
Mehrdad Khajavi, Yi Zhou, Amy E Birsner, Lauren Bazinet, Amanda Rosa Di Sant, Alex J Schiffer, Michael S Rogers, Subrahmanian Tarakkad Krishnaji, Bella Hu, Vy Nguyen, Leonard Zon, Robert J D'Amato
Recent findings indicate that growth factor-driven angiogenesis is markedly influenced by genetic variation. This variation in angiogenic responsiveness may alter the susceptibility to a number of angiogenesis-dependent diseases. Here, we utilized the genetic diversity available in common inbred mouse strains to identify the loci and candidate genes responsible for differences in angiogenic response. The corneal micropocket neovascularization assay was performed on 42 different inbred mouse strains using basic fibroblast growth factor (bFGF) pellets...
June 15, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28608153/low-levels-of-physiological-interstitial-flow-eliminate-morphogen-gradients-and-guide-angiogenesis
#9
Venktesh S Shirure, Andrew Lezia, Arnold Tao, Luis F Alonzo, Steven C George
Convective transport can significantly distort spatial concentration gradients. Interstitial flow is ubiquitous throughout living tissue, but our understanding of how interstitial flow affects concentration gradients in biological processes is limited. Interstitial flow is of particular interest for angiogenesis because pathological and physiological angiogenesis is associated with altered interstitial flow, and both interstitial flow and morphogen gradients (e.g., vascular endothelial growth factor, VEGF) can potentially stimulate and guide new blood vessel growth...
June 12, 2017: Angiogenesis
https://www.readbyqxmd.com/read/28605029/the-pancreatic-cancer-microenvironment-a-true-double-agent
#10
REVIEW
Laleh G Melstrom, Marcela D Salazar, Don J Diamond
The tumor microenvironment in pancreatic cancer is a complex balance of pro- and anti-tumor components. The dense desmoplasia consists of immune cells, extracellular matrix, growth factors, cytokines, and cancer associated fibroblasts (CAF) or pancreatic stellate cells (PSC). There are a multitude of targets including hyaluronan, angiogenesis, focal adhesion kinase (FAK), connective tissue growth factor (CTGF), CD40, chemokine (C-X-C motif) receptor 4 (CXCR-4), immunotherapy, and Vitamin D. The developing clinical therapeutics will be reviewed...
June 12, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28601354/studies-on-wound-healing-potential-of-polyherbal-formulation-using-in%C3%A2-vitro-and-in%C3%A2-vivo-assays
#11
Yogesh P Talekar, Kishori G Apte, Shubhangi V Paygude, Prasad R Tondare, Pradeep B Parab
BACKGROUND: The use of herbal plant extracts in wound healing is known through decades, but it is necessary to provide scientific data through reverse pharmacology. OBJECTIVE: The aim of the present study is to find the mechanism behind the healing of wounds using in vitro and in vivo assays. METHODS AND MATERIAL: The study was designed to determine proliferation and mobilization of fibroblast and keratinocytes at the site of injury, angiogenesis at the site of healing and reduction in oxidative stress while healing...
June 7, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/28594443/growth-factors-for-angiogenesis-in-peripheral-arterial-disease
#12
REVIEW
Vitali Gorenoi, Michael U Brehm, Armin Koch, Anja Hagen
BACKGROUND: Peripheral artery disease (PAD) is associated with a high clinical and socioeconomic burden. Treatments to alleviate the symptoms of PAD and decrease the risks of amputation and death are a high societal priority. A number of growth factors have shown a potential to stimulate angiogenesis. Growth factors delivered directly (as recombinant proteins), or indirectly (e.g. by viral vectors or DNA plasmids encoding these factors), have emerged as a promising strategy to treat patients with PAD...
June 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28592821/development-of-a-3d-angiogenesis-model-to-study-tumour-endothelial-cell-interactions-and-the-effects-of-anti-angiogenic-drugs
#13
Arno Amann, Marit Zwierzina, Stefan Koeck, Gabriele Gamerith, Elisabeth Pechriggl, Julia M Huber, Edith Lorenz, Jens M Kelm, Wolfgang Hilbe, Heinz Zwierzina, Johann Kern
The tumour microenvironment and tumour angiogenesis play a critical role in the development and therapy of many cancers, but in vitro models reflecting these circumstances are rare. In this study, we describe the development of a novel tri-culture model, using non-small cell lung cancer (NSCLC) cell lines (A549 and Colo699) in combination with a fibroblast cell line (SV 80) and two different endothelial cell lines in a hanging drop technology. Endothelial cells aggregated either in small colonies in Colo699 containing microtissues or in tube like structures mainly in the stromal compartment of microtissues containing A549...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28591277/evaluation-of-nicotinamide-as-an-anti-inflammatory-and-anti-angiogenic-agent-in-uveal-melanoma-cell-lines
#14
Evangelina Esposito, Sultan Aldrees, Christina Mastromonaco, Pablo Zoroquiain, Natalia Vila, Patrick T Logan, Shriya Hari, Miguel N Burnier
Purpose: To investigate the effect of nicotinamide on the secretion of pro-an giogenic and pro-inflammatory cytokines in uveal melanoma cell lines. Methods: Two human uveal melanoma cell lines (92.1 and OCM-1) were treated with nicotinamide (10 mmol/L) or control media for 48 hours in culture. The su perna tant from each culture was used in sandwich enzyme-linked immuno sorbent assay-based angiogenesis and inflammation arrays to evaluate the effects of exogenously administered nicotinamide on the secretion of a total of 20 pro-an gio genic and pro-inflammatory proteins...
March 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28581882/nutriproteomic-analysis-of-hwangmaemok-induced-antiangiogenic-effect-using-antibody-arrayed-protein-chip-assay
#15
Yu Mi Park, Min-A Kim, Hee Tae Jung, Hwa Jeong Kang, Hwa-Seung Yoo, In-Cheol Kang
We investigated the antiangiogenic effects of Lindera obtusiloba Blume (Hwangmaemok, HMM), which is a plant in the Lauraceae family that is commonly used to treat colds and gastritis. Moreover, given that a recent study reported the inhibitory effects of HMM extract on cancer metastasis, we hypothesized that HMM extract might possess and antiangiogenic function. Thus, this study was conducted to investigate the effects of HMM extract on endothelial cell proliferation, migration, and neovascularization in chick chorioallantoic membrane (CAM), and investigated the molecular mechanism of antiangiogenesis using a ProteoChip-based proteomics technology...
June 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28578015/therapeutic-pro-fibrogenic-signaling-pathways-in-fibroblasts
#16
Stefania Cannito, Erica Novo, Maurizio Parola
Myofibroblasts (MFs) play a critical role in the progression of chronic inflammatory and fibroproliferative diseases in different tissues/organs, whatever the etiology. Fibrosis is preceded and sustained by persistent injury and inflammatory response in a profibrogenic scenario involving mutual interactions, operated by several mediators and pathways, of MFs and related precursor cells with innate immunity cells and virtually any cell type in a defined tissue. These interactions, mediators and related signaling pathways are critical in initiating and perpetuating the differentiation of precursors cells into MFs that in different tissues share peculiar traits and phenotypic responses, including the ability to proliferate, produce ECM components, migrate and contribute to the modulation of inflammatory response and tissue angiogenesis...
May 31, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28577095/initial-stages-of-angiogenesis-after-acute-experimental-local-venous-outflow-disturbances-and-application-of-cell-technologies
#17
I V Maiborodin, V V Morozov, V A Matveeva, A A Anikeev, R V Maslov, G A Chastikin, N F Figurenko
The initial stages of angiogenesis in rats after transcutaneous injection of autologous bone marrow multipotent mesenchymal stromal cells transfected with GFP gene and stained cell membranes in the projection of ligated femoral vein were studied by fluorescent light and confocal laser microscopy. Large clusters of brightly fluorescing elongated fibroblast-like cells were seen in the paravasal tissue and in the postoperative scar and signs of angiogenesis were noted as soon as in 4 days. The injected cells not only formed new vessels, but also integrated into vessels formed by host cells...
June 3, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28574849/strategies-targeting-angiogenesis-in-advanced-non-small-cell-lung-cancer
#18
REVIEW
Jun Wang, Jianpeng Chen, Yan Guo, Baocheng Wang, Huili Chu
Tumor angiogenesis is a frequent event in the development and progression of non-small cell lung cancer (NSCLC) and has been identified as a promising therapeutic target. The vascular endothelial growth factor (VEGF) family and other angiogenic factors, including fibroblast growth factor and platelet-derived growth factor, promote the growth of newly formed vessels from preexisting vessels and change the tumor microenvironment. To date, two antiangiogenic monoclonal antibodies, bevacizumab and ramucirumab, which target VEGF-A and its receptor VEGF receptor-2, respectively, have been approved for the treatment of locally advanced or metastatic NSCLC when added to first-line standard chemotherapy...
May 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28570946/microfabricated-blood-vessels-undergo-neoangiogenesis
#19
Kyle A DiVito, Michael A Daniele, Steven A Roberts, Frances S Ligler, André A Adams
The greatest ambition and promise of tissue engineering is to manufacture human organs. Before "made-to-measure" tissues can become a reality [1-3], however, three-dimensional tissues must be reconstructed and characterized. The current inability to manufacture operational vasculature has limited the growth of engineered tissues. Here, free-standing, small diameter blood vessels with organized cell layers that recapitulate normal biological functionality are fabricated using microfluidic technology. Over time in culture, the endothelial cells form a monolayer on the luminal wall and remodel the scaffold with human extracellular matrix proteins...
May 19, 2017: Biomaterials
https://www.readbyqxmd.com/read/28564583/fibroblast-growth-factors-fgfs-in-cancer-fgf-traps-as-a-new-therapeutic-approach
#20
REVIEW
Marco Presta, Paola Chiodelli, Arianna Giacomini, Marco Rusnati, Roberto Ronca
Originally characterized as angiogenic factors, fibroblast growth factors (FGFs) are pleiotropic factors that exert autocrine and paracrine functions on tumor and stromal cells. Thus, they may represent key players in the complex crosstalk among angiogenesis, inflammation, tumor growth, and drug resistance, all contributing to tumor progression. Given the multiple activities of FGFs, inhibitors of the FGF/FGFR system may act as "two compartment" targeting drugs able to exert a deep impact on the growth of FGF/FGFR-driven tumors...
May 28, 2017: Pharmacology & Therapeutics
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