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Targeting pericytes diminishes neovascularization in orthotopic uveal melanoma in nerve/glial antigen 2 proteoglycan knockout mouse.

AbstractIn this investigation, we explored whether knockout of nerve/glial antigen 2 (NG2), a pericyte component, inhibited neovascularization and growth of uveal melanoma xenografts. For this, we used multichannel laser scanning confocal microscopy and quantitative image analysis. Orthotopic human uveal melanoma (OCM-1A) xenografts were induced in NG2 knockout and wild-type mice, which were immunosuppressed with cyclosporin A. Inhibition of pericytes through NG2 proteoglycan decreased neovascularization and tumor end volume, rendering pericytes and NG2 proteoglycan potential cellular and molecular therapeutic targets in uveal melanoma.
AuthorsUgur Ozerdem (Affiliation: La Jolla Institute for Molecular Medicine, San Diego, Calif, USA. ozerdem at ljimm.org)
JournalOphthalmic research (Ophthalmic Res) Vol. 38 Issue 5 Pg. 251-4 ( 2006) ISSN: 0030-3747 [Print] Switzerland
PMID16888406 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.)
CopyrightCopyright (c) 2006 S. Karger AG, Basel.
Chemical References
  • Antigens
  • Antigens, CD
  • Antigens, CD31
  • ENG protein, human
  • Glial Fibrillary Acidic Protein
  • Proteoglycans
  • Receptors, Cell Surface
  • chondroitin sulfate proteoglycan 4
  • Receptor, Platelet-Derived Growth Factor alpha
  • Vascular Endothelial Growth Factor Receptor-2
Topics
  • Animals
  • Antigens (physiology)
  • Antigens, CD (metabolism)
  • Antigens, CD31 (metabolism)
  • Female
  • Fluorescent Antibody Technique, Indirect
  • Glial Fibrillary Acidic Protein (metabolism)
  • Male
  • Melanoma (blood supply, metabolism, pathology)
  • Mice
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Microscopy, Confocal
  • Neovascularization, Pathologic (metabolism, pathology, prevention & control)
  • Pericytes (metabolism)
  • Proteoglycans (physiology)
  • Receptor, Platelet-Derived Growth Factor alpha (metabolism)
  • Receptors, Cell Surface (metabolism)
  • Uveal Neoplasms (blood supply, metabolism, pathology)
  • Vascular Endothelial Growth Factor Receptor-2 (metabolism)
  • Xenograft Model Antitumor Assays

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