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  • *Gene Expression Regulation  (1)
  • Animals, Newborn  (1)
  • 1
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    Pigment epithelium-derived factor: a potent inhibitor of angiogenesis (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-10
    Description: In the absence of disease, the vasculature of the mammalian eye is quiescent, in part because of the action of angiogenic inhibitors that prevent vessels from invading the cornea and vitreous. Here, an inhibitor responsible for the avascularity of these ocular compartments is identified as pigment epithelium-derived factor (PEDF), a protein previously shown to have neurotrophic activity. The amount of inhibitory PEDF produced by retinal cells was positively correlated with oxygen concentrations, suggesting that its loss plays a permissive role in ischemia-driven retinal neovascularization. These results suggest that PEDF may be of therapeutic use, especially in retinopathies where pathological neovascularization compromises vision and leads to blindness.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dawson, D W -- Volpert, O V -- Gillis, P -- Crawford, S E -- Xu, H -- Benedict, W -- Bouck, N P -- New York, N.Y. -- Science. 1999 Jul 9;285(5425):245-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology-Immunology, Department of Pathology, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Medical School, Chicago, IL 60611, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10398599" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Antibodies/immunology ; Cattle ; Cells, Cultured ; Chemotaxis/drug effects ; Culture Media, Conditioned ; Endothelial Growth Factors/metabolism ; Endothelium, Vascular/cytology/drug effects/physiology ; Eye/blood supply ; *Eye Proteins ; Humans ; Lymphokines/metabolism ; Mice ; Neovascularization, Pathologic/*drug therapy/metabolism/pathology ; Neovascularization, Physiologic/*drug effects ; *Nerve Growth Factors ; Oxygen/physiology ; Proteins/genetics/immunology/*pharmacology/*physiology ; RNA, Messenger/genetics/metabolism ; Rats ; Retina/*metabolism/pathology ; Retinal Neovascularization/*drug therapy ; Retinal Vessels/growth & development ; Serpins/genetics/immunology/*pharmacology/*physiology ; Tumor Cells, Cultured ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Control of angiogenesis in fibroblasts by p53 regulation of thrombospondin-1 (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-09
    Description: As normal cells progress toward malignancy, they must switch to an angiogenic phenotype to attract the nourishing vasculature that they depend on for their growth. In cultured fibroblasts from Li-Fraumeni patients, this switch was found to coincide with loss of the wild-type allele of the p53 tumor suppressor gene and to be the result of reduced expression of thrombospondin-1 (TSP-1), a potent inhibitor of angiogenesis. Transfection assays revealed that p53 can stimulate the endogenous TSP-1 gene and positively regulate TSP-1 promoter sequences. These data indicate that, in fibroblasts, wild-type p53 inhibits angiogenesis through regulation of TSP-1 synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dameron, K M -- Volpert, O V -- Tainsky, M A -- Bouck, N -- CA52750/CA/NCI NIH HHS/ -- CA64239/CA/NCI NIH HHS/ -- P01 CA34936/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 Sep 9;265(5178):1582-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology-Immunology, Northwestern University Medical School, Chicago, IL 60611.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7521539" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Cells, Cultured ; Fibroblasts/*metabolism ; *Gene Expression Regulation ; *Genes, p53 ; Humans ; Li-Fraumeni Syndrome ; Membrane Glycoproteins/biosynthesis/*genetics/physiology ; *Neovascularization, Pathologic ; Phenotype ; Promoter Regions, Genetic ; Thrombospondins ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
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    PAPER CURRENT
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