Nitric Oxide and Its Gatekeeper Thrombospondin-1 in Tumor Angiogenesis: Fig. 1.
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منابع مشابه
Nitric oxide and its gatekeeper thrombospondin-1 in tumor angiogenesis.
Nitric oxide (NO) plays a central role in angiogenesis as a mediator of signaling by vascular endothelial growth factor and other angiogenic factors. Low concentrations of NO produced in response to angiogenic factors stimulate angiogenesis, whereas higher concentrations typical of inflammatory responses inhibit angiogenesis. The proangiogenic activity of NO is mediated by activation of soluble...
متن کاملNitric oxide regulates angiogenesis through a functional switch involving thrombospondin-1.
Nitric oxide (NO) donors have been shown to stimulate and inhibit the proliferation, migration, and differentiation of endothelial cells in vitro and angiogenesis in vivo. Recently, we have shown distinct thresholds for NO to regulate p53-Ser-15P, phosphorylated extracellular signal-regulated kinase (pERK), and hypoxia inducible factor 1alpha in tumor cells. Because these signaling pathways als...
متن کاملThe Status of Nitric Oxide and its Backup, Heme Oxygenase 1, in Thromboangiitis Obliterans
Background: Until recently, a gene polymorphism in the promoter region of endothelial nitric oxide synthase has been suggested as a risk factor for thromboangiitis obliterans (TAO) development. The aim of this study was to compare the metabolites of nitric oxide (NO) and its backup, heme-oxygenase-1 (HMOX1), between TAO patients and those of a smoking control group matched by race, age, sex, an...
متن کاملThrombospondin-1 expression in bladder cancer: association with p53 alterations, tumor angiogenesis, and tumor progression.
BACKGROUND Thrombospondin-1 (TSP) is a 430-kd glycoprotein that is an important component of the extracellular matrix and is known to be a potent inhibitor of angiogenesis (i.e., formation of new blood vessels) both in vitro and in vivo. Several reports suggest that TSP possesses tumor suppressor function, possibly through its ability to inhibit tumor neovascularization. It has recently been sh...
متن کاملNitric oxide and angiogenesis.
Endothelium-derived nitric oxide (NO) is a mediator of angiogenesis. Vascular endothelial growth factor (VEGF) stimulates the release of NO from cultured human umbilical venous endothelial cells and upregulates the expression of nitric oxide synthase (NOS).1,2 Segments of rabbit thoracic aorta release NO in response to VEGF; preincubation with L-arginine increases basal and VEGFstimulated NO re...
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ژورنال
عنوان ژورنال: Clinical Cancer Research
سال: 2007
ISSN: 1078-0432,1557-3265
DOI: 10.1158/1078-0432.ccr-06-1758