Inhibition of endothelial cell migration and angiogenesis by a vascular endothelial growth factor receptor-1 derived peptide. 2008

Pedro M Lacal, and Veronica Morea, and Federica Ruffini, and Angela Orecchia, and Annalisa S Dorio, and Cristina M Failla, and Simonetta Soro, and Lucio Tentori, and Giovanna Zambruno, and Grazia Graziani, and Anna Tramontano, and Stefania D'Atri
Laboratory of Molecular Oncology, Istituto Dermopatico dell'Immacolata-IRCCS, Via dei Monti di Creta 104, 00167 Rome, Italy. p.lacal@idi.it

Vascular endothelial growth factor receptor-1 (VEGFR-1) exists in two isoforms: a membrane-bound isoform (mVEGFR-1) and a soluble one (sVEGFR-1). mVEGFR-1 is involved in endothelial cell migration and survival supported by VEGF-A and placenta growth factor (PlGF), whereas the biologic function of sVEGFR-1 has not been fully elucidated. We previously reported that sVEGFR-1 induces endothelial cell motility and promotes endothelial cell adhesion. In this study, we tested a set of VEGFR-1-derived peptides for their ability to interfere with endothelial cell migration. Peptide B3 was found to specifically inhibit cell migration induced by sVEGFR-1 and by mVEGFR-1-specific ligands. Moreover, peptide B3 markedly hampered angiogenesis in vitro and in vivo and was found to interfere with VEGFR-1 homodimerisation. Altogether, these data demonstrate that peptide B3 might be a useful tool for the specific inhibition of VEGFR-1 function and might represent a basis for the development of new anti-angiogenic compounds.

UI MeSH Term Description Entries
D009389 Neovascularization, Pathologic A pathologic process consisting of the proliferation of blood vessels in abnormal tissues or in abnormal positions. Angiogenesis, Pathologic,Angiogenesis, Pathological,Neovascularization, Pathological,Pathologic Angiogenesis,Pathologic Neovascularization,Pathological Angiogenesis,Pathological Neovascularization
D010446 Peptide Fragments Partial proteins formed by partial hydrolysis of complete proteins or generated through PROTEIN ENGINEERING techniques. Peptide Fragment,Fragment, Peptide,Fragments, Peptide
D011257 Pregnancy Proteins Proteins produced by organs of the mother or the PLACENTA during PREGNANCY. These proteins may be pregnancy-specific (present only during pregnancy) or pregnancy-associated (present during pregnancy or under other conditions such as hormone therapy or certain malignancies.) Placental Proteins,Proteins, Placental,Proteins, Pregnancy
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002465 Cell Movement The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell. Cell Migration,Locomotion, Cell,Migration, Cell,Motility, Cell,Movement, Cell,Cell Locomotion,Cell Motility,Cell Movements,Movements, Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000072483 Placenta Growth Factor An angiogenic protein belonging to the Vascular Endothelial Growth Factor family of growth factors originally isolated and cloned from human placental cDNA library. There are four isoforms of PLGF 1-4 which result from alternative splicing. Placenta Growth Factor is secreted as a glycosylated homodimer which acts as a mitogen for endothelial cells, and its expression is markedly upregulated during hypoxia and in tissue inflammation and cancer. Placenta Growth Factor, PLGF-1 Isoform,Placenta Growth Factor, PLGF-2 Isoform,Placenta Growth Factor, PLGF-3 Isoform,Placenta Growth Factor, PLGF-4 Isoform,Factor, Placenta Growth,Growth Factor, Placenta,Placenta Growth Factor, PLGF 1 Isoform,Placenta Growth Factor, PLGF 2 Isoform,Placenta Growth Factor, PLGF 3 Isoform,Placenta Growth Factor, PLGF 4 Isoform
D014471 Umbilical Veins Venous vessels in the umbilical cord. They carry oxygenated, nutrient-rich blood from the mother to the FETUS via the PLACENTA. In humans, there is normally one umbilical vein. Umbilical Vein,Vein, Umbilical,Veins, Umbilical
D042783 Endothelial Cells Highly specialized EPITHELIAL CELLS that line the HEART; BLOOD VESSELS; and lymph vessels, forming the ENDOTHELIUM. They are polygonal in shape and joined together by TIGHT JUNCTIONS. The tight junctions allow for variable permeability to specific macromolecules that are transported across the endothelial layer. Capillary Endothelial Cells,Lymphatic Endothelial Cells,Vascular Endothelial Cells,Capillary Endothelial Cell,Cell, Capillary Endothelial,Cell, Endothelial,Cell, Lymphatic Endothelial,Cell, Vascular Endothelial,Cells, Capillary Endothelial,Cells, Endothelial,Cells, Lymphatic Endothelial,Cells, Vascular Endothelial,Endothelial Cell,Endothelial Cell, Capillary,Endothelial Cell, Lymphatic,Endothelial Cell, Vascular,Endothelial Cells, Capillary,Endothelial Cells, Lymphatic,Endothelial Cells, Vascular,Lymphatic Endothelial Cell,Vascular Endothelial Cell
D049109 Cell Proliferation All of the processes involved in increasing CELL NUMBER including CELL DIVISION. Cell Growth in Number,Cellular Proliferation,Cell Multiplication,Cell Number Growth,Growth, Cell Number,Multiplication, Cell,Number Growth, Cell,Proliferation, Cell,Proliferation, Cellular

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