PMID- 16790550 OWN - NLM STAT- MEDLINE DCOM- 20060816 LR - 20220321 IS - 0027-8424 (Print) IS - 1091-6490 (Electronic) IS - 0027-8424 (Linking) VI - 103 IP - 27 DP - 2006 Jul 5 TI - Targeted gene disruption of methionine aminopeptidase 2 results in an embryonic gastrulation defect and endothelial cell growth arrest. PG - 10379-10384 LID - 10.1073/pnas.0511313103 [doi] AB - The antiangiogenic agent fumagillin (Fg) and its analog TNP-470 bind to intracellular metalloprotease methionine aminopeptidase-2 (MetAP-2) and inhibit endothelial cell growth in a p53-dependent manner. To confirm the role of MetAP-2 in endothelial cell proliferation and to validate it as a physiological target for the Fg class of antiangiogenic agents, we have generated a conditional MetAP-2 knockout mouse. Ubiquitous deletion of the MetAP-2 gene (MAP2) resulted in an early gastrulation defect, which is bypassed in double MetAP-2/p53 knockout embryos. Targeted deletion of MAP2 specifically in the hemangioblast lineage resulted in abnormal vascular development, and these embryos die at the midsomite stage. In addition, knockdown of MetAP-2 using small interfering RNA or homologous recombination specifically suppresses the proliferation of cultured endothelial cells. Together, these results demonstrate an essential role for MetAP-2 in angiogenesis and indicate that MetAP-2 is responsible for the endothelial cell growth arrest induced by Fg and its derivatives. FAU - Yeh, Jing-Ruey J AU - Yeh JJ AD - Departments of *Molecular, Cell, and Developmental Biology. FAU - Ju, Rong AU - Ju R AD - Departments of *Molecular, Cell, and Developmental Biology. FAU - Brdlik, Cathleen M AU - Brdlik CM AD - Departments of *Molecular, Cell, and Developmental Biology. FAU - Zhang, Wenjun AU - Zhang W AD - Departments of *Molecular, Cell, and Developmental Biology. FAU - Zhang, Yi AU - Zhang Y AD - Departments of *Molecular, Cell, and Developmental Biology. FAU - Matyskiela, Mary E AU - Matyskiela ME AD - Departments of *Molecular, Cell, and Developmental Biology. FAU - Shotwell, Joseph D AU - Shotwell JD AD - Departments of *Molecular, Cell, and Developmental Biology. FAU - Crews, Craig M AU - Crews CM AD - Departments of *Molecular, Cell, and Developmental Biology, craig.crews@yale.edu. AD - Pharmacology, and. AD - Chemistry, Yale University, New Haven, CT 06520-8103. LA - eng GR - R01 CA083049/CA/NCI NIH HHS/United States GR - R01 CA083049-08/CA/NCI NIH HHS/United States GR - CA083049/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20060621 PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (Tumor Suppressor Protein p53) RN - EC 3.4.11.- (Aminopeptidases) RN - EC 3.4.11.18 (methionine aminopeptidase 2) RN - EC 3.4.24.- (Metalloendopeptidases) SB - IM MH - Aminopeptidases/*deficiency/genetics/*metabolism MH - Animals MH - Cell Proliferation MH - Cells, Cultured MH - Endothelial Cells/*cytology/*enzymology MH - Gastrula/*enzymology/*pathology MH - Gene Expression Regulation, Developmental MH - Gene Expression Regulation, Enzymologic MH - Humans MH - Metalloendopeptidases/*deficiency/genetics/*metabolism MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Phenotype MH - RNA Interference MH - Time Factors MH - Tumor Suppressor Protein p53/metabolism PMC - PMC1480595 COIS- Conflict of interest statement: No conflicts declared. EDAT- 2006/06/23 09:00 MHDA- 2006/08/17 09:00 PMCR- 2006/06/21 CRDT- 2006/06/23 09:00 PHST- 2006/06/23 09:00 [pubmed] PHST- 2006/08/17 09:00 [medline] PHST- 2006/06/23 09:00 [entrez] PHST- 2006/06/21 00:00 [pmc-release] AID - 0511313103 [pii] AID - 2597 [pii] AID - 10.1073/pnas.0511313103 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 2006 Jul 5;103(27):10379-10384. doi: 10.1073/pnas.0511313103. Epub 2006 Jun 21.