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Combination therapy reduces tumor resistance to radiation
June 08, 2007Radiation is used to treat a variety of tumors and the response of tumors to radiation is dependent on endothelial cell death, which in turn limits oxygen delivery to the tumor, causing hypoxia and tumor cell death. Recently, radiation-induced hypoxia was shown to trigger tumor resistance to radiation via the activation of new blood vessel formation (angiogenesis) through molecules known as HIF-1-regulated cytokines. In a study appearing online on June 7 in advance of publication in the July print issue of the Journal of Clinical Investigation, Claire Magnon and colleagues from Institut Gustave Roussy, France, show that a combination of radiation treatment and the use of angiogenesis inhibitors such as canstatin is able to overcome HIF-1-dependent tumor survival pathways and increases tumor cell death. The authors found that following application of this dual therapy to mice, HIF-1alpha increased the activity of the canstatin-induced tumor apoptotic pathway, which lead to lethal tumor damage. The study demonstrates a crucial role for angiogenesis inhibitors in shifting tumor radioresistance towards tumor apoptosis and suggests that a combination of radiation and angiogenesis inhibitors could potentially be used to overcome HIF-1-dependent tumor radioresistance.
Journal of Clinical Investigation
Angiogenesis Current Events and Angiogenesis News RSSCommon pain relief medication may encourage cancer growth
Although morphine has been the gold-standard treatment for postoperative and chronic cancer pain for two centuries, a growing body of evidence is showing that opiate-based painkillers can stimulate the growth and spread of cancer cells.
New mechanism explains how the body prevents formation of blood vessels
Researchers at Uppsala University, in collaboration with colleagues in Sweden and abroad, have identified an entirely new mechanism by which a specific protein in the body inhibits formation of new blood vessels.
Is short-term Celecoxib intervention a effective method for preventing gastric carcinogenesis?
Since the isolation and culture of Helicobacter pylori (H. pylori) in 1983, this bacterium has become accepted as an important human pathogen for the development of gastritis, peptic ulcer, and gastric cancer.
Alternatively spliced tissue factor identified as promising new biomarker for aggressive cancers
A recently discovered form of the protein that triggers blood clotting may play a key role in the molecular mechanisms leading to the growth of certain metastatic cancers, according to new research reported by an international team of scientists.
Probiotic Found to Be Effective Treatment for Colitis In Mice
The probiotic, Bacillus polyfermenticus, can help mice recover from colitis, a new study has found.
The vasculature emerges as a potential therapeutic target in treating ADPKD liver cysts
As part of an effort to develop effective medical therapies that block the progression of liver cyst growth in patients with Autosomal Dominant Polycystic Kidney Disease (ADPKD), researchers at the University of Colorado Anschutz Medical Center have found that the liver cyst walls develop and maintain a vasculature as they grow out from the body of the liver and that factors released by epithelial cells that line the liver cyst wall lumen can drive the proliferation and development of vascular endothelial cells.
Ultrasound can predict tumor burden and survival in melanoma patients
Researchers have shown for the first time that patterns of ultrasound signals can be used to identify whether or not cancer has started to spread in melanoma patients, and to what extent. The discovery enables doctors to decide on how much surgery, if any, is required and to predict the patient's probable survival.
Killing Cancer Like a Vampire Slayer
Like vampires, cancer tumors require an ample supply of blood to stay alive. Without fresh blood for sustenance, cancer cells shrivel up like raisins and die.
UCSF scientists illuminate how microRNAs drive tumor progression
UCSF researchers have identified collections of tiny molecules known as microRNAs that affect distinct processes critical for the progression of cancer.
Diesel exhaust is linked to cancer development via new blood vessel growth
Scientists here have demonstrated that the link between diesel fume exposure and cancer lies in how diesel exhaust induces the growth of new blood vessels that supply solid tumors. The researchers found that in both healthy and diseased animals, more new blood vessels sprouted in mice exposed to diesel exhaust than did in mice exposed to clean, filtered air. This suggests that previous illness isn't required to make humans susceptible to the damaging effects of the diesel exhaust.
More Angiogenesis Current Events and Angiogenesis News Articles
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Angiogenesis: An Integrative Approach from Science to Medicine by William D. Figg (Author), William D. Figg (Editor), Judah Folkman (Editor) Dr. Judah Folkman, father of angiogenesis , (1933-2008) was the Director of the Vascular Biology Program, Andrus Professor of Pediatric Surgery, and Professor of Cell Biology at Harvard University's Boston Children's Hospital. In the 1971 issue of The New England Journal of Medicine, he proposed the theory that tumor growth is angiogenesis dependent. This premise was the basis of this field of research and has become the focus of scientists worldwide. Because of Folkman's discovery and research, the possibilities of antiangiogenic and angiogenic therapy have broadened beyond cancer to many noncancerous diseases. This book represents the first collection in a volume of which Dr. Folkman is co-editor. Dr. Folkman authored nearly 400 original papers and more than 100 book... |
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Angiogenesis Protocols (Methods in Molecular Biology) by Stewart Martin (Editor), Cliff Murray (Editor) As experimentation and clinical trials with first generation anti-angiogenic agents have yielded results and our understanding of the biology and physiology of blood and lymphatic vessels has increased, a new angiogenesis volume swiftly became a necessity. Angiogenesis Protocols, Second Edition remains true to its original vision of providing a single source for angiogenesis researchers, irrespective of levels of resource and expertise, by collecting a range of methods for cell isolation and assessing angiogenesis in vivo or in vitro. This information, however, is expanded to include chapters on circulating endothelial progenitor cells, angiogenic signalling pathways, imaging of angiogenesis, and measurement of tissue blood flow. Written in the Methods in Molecular Biology™ series... |
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Dr. Folkman's War: Angiogenesis and the Struggle to Defeat Cancer by Robert Cooke (Author), C. Everett Koop (Foreword) In 1961, twenty-eight-year-old Dr. Judah Folkman saw something while doing medical research in a United States navy lab that gave him the first glimmering of a wild, inspired hunch. What if cancerous tumors, in order to expand, needed to trigger the growth of new blood vessels to feed themselves? And if that was true, what if a way could be found to stop that growth? Could cancers be starved to death? Dr. Folkman had ample reason to be self confident — second in his class at Harvard Medical School, he was already considered one of the most promising doctors of his generation. But even he never guessed that his idea would eventually grow into a multibillion-dollar industry that is now racing through human trials with drugs that show unparalleled promise of being able to control... |
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Angiogenesis Assays: A Critical Appraisal of Current Techniques by Carolyn A Staton (Editor), Claire Lewis (Editor), Roy Bicknell (Editor) Angiogenesis, the development of new blood vessels from the existing vasculature, is essential for physiological growth and over 18,000 research articles have been published describing the role of angiogenesis in over 70 different diseases, including cancer, diabetic retinopathy, rheumatoid arthritis and psoriasis. One of the most important technical challenges in such studies has been finding suitable methods for assessing the effects of regulators of eh angiogenic response. While increasing numbers of angiogenesis assays are being described both in vitro and in vivo, it is often still necessary to use a combination of assays to identify the cellular and molecular events in angiogenesis and the full range of effects of a given test protein. Although the endothelial cell - its migration,... |
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Angiostop 250 mg - 60 capsules | Slows Angiogenesis by Chi's Enterprise Angiostop is extracted from a special sea cucumber in the South China seas. Its active fraction has been shown through in vitro and in vivo studies to inhibit angiogenesis (new blood vessel formation) and also inhibit receptor tyrosine kinases (RTKs). Studies show that the active fraction inhibits 4 different angiogenesis-related RTKs. By stopping the cytokines from binding to their corresponding RTKs, factors such as angiogenesis and proliferation are inhibited and apoptosis (programmed cell death) is induced. * Inhibits 4 receptor tyrosine kinases (RTKs):VEGFR, FGFR, PDGR, EGFR * Inhibits new blood vessel formation * Induces apoptosis Inhibiting the vascular endothelial growth factor receptor (VEGFR) is the most important because it stops angiogenesis, cutting off nutrient and... |
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Tumor Angiogenesis: Basic Mechanisms and Cancer Therapy by Dieter Marmé (Author), Dieter Marmé (Editor), Norbert Fusenig (Editor) Tumor angiogenesis is one of the most prominent mechanisms driving tumor development and progression. In the past 30 years some of the most important signaling pathways linking specific angiogenic activities of tumor cells to fatal reactions of the patient s vascular system have been elucidated. Crucial targets for therapeutic intervention have been identified and validated. Based on these achievements targeted drug development programs have been implemented to interfere with tumor angiogenesis as an attractive strategy in cancer treatment. The first targeted anti-angiogenic drugs have been approved for a variety of solid metastasizing cancers. Part 1 describes the basic mechanisms. Tumor-angiogenic signaling pathways are presented as new potential targets for... |
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Modern Concepts in Angiogenesis by Michael Simons (Author), Michael Simons (Editor), Gabor M. Rubanyi (Editor) This volume addresses current emerging concepts in the field of angiogenesis, including important angiogenesis modifiers which are essential in combination with growth factors (VEGF and FGF) for the physiological process and also for therapeutic applications. It covers many of the lesser discussed areas including blood vessel growth guidance (interactions with CNS) as well as emerging practical applications of these concepts. The book comprises in-depth reviews by leading experts in several major areas: recent basic science discoveries about angiogenesis modifiers (semaphorins, ephrins and nitric oxide, for which the Nobel Prize was awarded); arterial guidance; clinical applications of new angiogenic factors (HGF, HIF and eNOS); and basic and clinical advancement of anti-angiogenic... |
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Angiogenesis The Mackrosoft (Primary Contributor) |
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Angiogenesis: From Basic Science to Clinical Applications by Napoleone Ferrara (Editor) Why a new book on angiogenesis and why now? For the first time concepts proposed over 30 years ago have found clinical validation. In the last two years the first antiangiogenic agents have been approved by the FDA for the treatment of cancer and age-related macular degeneration. Not surprisingly, this clinical success has raised a new set of basic and clinical questions that need to be addressed. Angiogenesis: From Basic Science to Clinical Applications presents the latest advances in basic science and reviews the status of the clinical applications of angiogenic growth factors and inhibitors. It explores current molecular and genetic findings on the regulation of angiogenesis, discusses the results of clinical trials and identifies the pathological conditions that are most likely to... |
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Angiogenesis: In Vivo Systems, Part B, Volume 445 (Methods in Enzymology) by David A. Cheresh (Editor) Understanding how angiogenesis "works" and how to control it will have massive implications on the management, treatments, and ultimately the prevention of many common (and not so common) diseases. Angiogenesis is the growth of new blood vessels and is an important natural process in the body. A healthy body maintains a perfect balance of angiogenesis modulators. In many serious disease states, however, the body loses control over angiogenesis. Diseases that are angiogenesis-dependent result when blood vessels either grow excessively or insufficiently. * Tried-and-tested techniques written by researchers that developed them, used them, and brought them to fruition * Provides the "builder's manual" for essential techniques--a one-stop... |
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