PMID- 12782568 OWN - NLM STAT- MEDLINE DCOM- 20030701 LR - 20211203 IS - 1524-4539 (Electronic) IS - 0009-7322 (Linking) VI - 107 IP - 23 DP - 2003 Jun 17 TI - Targeting of mitogen-activated protein kinases and phosphatidylinositol 3 kinase inhibits hepatocyte growth factor/scatter factor-induced angiogenesis. PG - 2955-61 AB - BACKGROUND: Hepatocyte growth factor/scatter factor (HGF/SF) can sufficiently and independently induce pathophysiological angiogenesis. However, the treatment strategies have mostly been unsuccessful. The present study is the first to evaluate the possible targeting of downstream signals for the inhibition of HGF/SF-induced angiogenesis. METHODS AND RESULTS: In a multichannel scratch assay with human endothelial cells (ECs), HGF/SF induced a strong and prolonged activation of MAPK and cell proliferation that was inhibited by PD98059 and LY294002/wortmannin, selective inhibitors of MAPK and PI3K signaling modules, respectively. Western blotting demonstrated a temporal relation between the activation of the two pathways. Chemical inhibition of the PI3K and MAPK signals inhibited HGF/SF-induced chemoinvasion of ECs in vitro and blocked the HGF/SF-induced neovascularization into a polymer scaffold in vivo, as quantified by vessel counts and the clearance of radioactive 133Xe. CONCLUSIONS: These data indicate that MEK and PI3K inhibitors represent a promising approach to the clinical management of pathological conditions characterized by overt HGF/SF-induced angiogenesis. FAU - Sengupta, Shiladitya AU - Sengupta S AD - Angiogenesis Laboratory, Department of Pharmacology, University of Cambridge, Cambridge, United Kingdo. shiladit@MIT.edu FAU - Sellers, Lynda A AU - Sellers LA FAU - Li, Rung-Chi AU - Li RC FAU - Gherardi, Ermanno AU - Gherardi E FAU - Zhao, Ganlin AU - Zhao G FAU - Watson, Nicki AU - Watson N FAU - Sasisekharan, Ram AU - Sasisekharan R FAU - Fan, Tai-Ping D AU - Fan TP LA - eng PT - Journal Article DEP - 20030602 PL - United States TA - Circulation JT - Circulation JID - 0147763 RN - 0 (Androstadienes) RN - 0 (Chromones) RN - 0 (Drug Combinations) RN - 0 (Enzyme Inhibitors) RN - 0 (Flavonoids) RN - 0 (Laminin) RN - 0 (Morpholines) RN - 0 (Phosphoinositide-3 Kinase Inhibitors) RN - 0 (Proteoglycans) RN - 0 (Proto-Oncogene Proteins) RN - 119978-18-6 (matrigel) RN - 31M2U1DVID (2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one) RN - 67256-21-7 (Hepatocyte Growth Factor) RN - 9007-34-5 (Collagen) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) RN - SJE1IO5E3I (2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one) RN - XVA4O219QW (Wortmannin) SB - IM MH - Androstadienes/pharmacology MH - Animals MH - Biological Assay MH - Cell Division/drug effects MH - Cells, Cultured MH - Chromones/pharmacology MH - Collagen MH - Drug Combinations MH - Endothelium, Vascular/cytology/drug effects MH - Enzyme Inhibitors/*pharmacology MH - Flavonoids/pharmacology MH - Hepatocyte Growth Factor/*antagonists & inhibitors/pharmacology MH - Humans MH - Laminin MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Mitogen-Activated Protein Kinases/*antagonists & inhibitors/metabolism MH - Morpholines/pharmacology MH - Neovascularization, Physiologic/*drug effects MH - Phosphatidylinositol 3-Kinases/metabolism MH - *Phosphoinositide-3 Kinase Inhibitors MH - Phosphorylation/drug effects MH - *Protein Serine-Threonine Kinases MH - Proteoglycans MH - Proto-Oncogene Proteins/metabolism MH - Proto-Oncogene Proteins c-akt MH - Signal Transduction/drug effects MH - Wortmannin EDAT- 2003/06/05 05:00 MHDA- 2003/07/02 05:00 CRDT- 2003/06/05 05:00 PHST- 2003/06/05 05:00 [pubmed] PHST- 2003/07/02 05:00 [medline] PHST- 2003/06/05 05:00 [entrez] AID - 01.CIR.0000077501.19266.E5 [pii] AID - 10.1161/01.CIR.0000077501.19266.E5 [doi] PST - ppublish SO - Circulation. 2003 Jun 17;107(23):2955-61. doi: 10.1161/01.CIR.0000077501.19266.E5. Epub 2003 Jun 2.