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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Suehiro, Jun-ichi Miura, Mai Manabe, Yuuka Kodama, Tatsuhiko Kanki, Yasuharu Minami, Takashi Schadler, Keri Aburatani, Hiroyuki Makihara, Chihiro |
| Description | Author Affiliation: Suehiro J ( From the Division of Vascular Biology.); Kanki Y ( From the Division of Vascular Biology, Systems Biology, The Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, 153-8904 Japan and.); Makihara C ( From the Division of Vascular Biology.); Schadler K ( From the Division of Vascular Biology, the Department of Cancer Biology, Abramson Family Cancer Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104.); Miura M ( From the Division of Vascular Biology.); Manabe Y ( From the Division of Vascular Biology.); Aburatani H ( Genome Science Division, and.); Kodama T ( Systems Biology, The Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, 153-8904 Japan and.); Minami T ( From the Division of Vascular Biology, minami@med.rcast.u-tokyo.ac.jp.) |
| Abstract | VEGF is a key regulator of endothelial cell migration, proliferation, and inflammation, which leads to activation of several signaling cascades, including the calcineurin-nuclear factor of activated T cells (NFAT) pathway. NFAT is not only important for immune responses but also for cardiovascular development and the pathogenesis of Down syndrome. By using Down syndrome model mice and clinical patient samples, we showed recently that the VEGF-calcineurin-NFAT signaling axis regulates tumor angiogenesis and tumor metastasis. However, the connection between genome-wide views of NFAT-mediated gene regulation and downstream gene function in the endothelium has not been studied extensively. Here we performed comprehensive mapping of genome-wide NFATc1 binding in VEGF-stimulated primary cultured endothelial cells and elucidated the functional consequences of VEGF-NFATc1-mediated phenotypic changes. A comparison of the NFATc1 ChIP sequence profile and epigenetic histone marks revealed that predominant NFATc1-occupied peaks overlapped with promoter-associated histone marks. Moreover, we identified two novel NFATc1 regulated genes, CXCR7 and RND1. CXCR7 knockdown abrogated SDF-1- and VEGF-mediated cell migration and tube formation. siRNA treatment of RND1 impaired vascular barrier function, caused RhoA hyperactivation, and further stimulated VEGF-mediated vascular outgrowth from aortic rings. Taken together, these findings suggest that dynamic NFATc1 binding to target genes is critical for VEGF-mediated endothelial cell activation. CXCR7 and RND1 are NFATc1 target genes with multiple functions, including regulation of cell migration, tube formation, and barrier formation in endothelial cells. |
| ISSN | 00219258 |
| e-ISSN | 1083351X |
| Journal | Journal of Biological Chemistry |
| Issue Number | 42 |
| Volume Number | 289 |
| Language | English |
| Publisher | American Society for Biochemistry and Molecular Biology (United States) |
| Publisher Date | 2014-10-17 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Endothelium, Vascular Metabolism NFATC Transcription Factors Neovascularization, Pathologic Vascular Endothelial Growth Factor A Animals COS Cells Cell Movement Cercopithecus Aethiops Coculture Techniques Endothelial Cells Cytology Epigenesis, Genetic Fibroblasts Genome-Wide Association Study HEK293 Cells Homeostasis Human Umbilical Vein Endothelial Cells Mice Oligonucleotide Array Sequence Analysis Phenotype Receptors, CXCR4 Signal Transduction Transcriptional Activation Rho GTP-Binding Proteins Research Support, Non-U.S. Gov't Biochemistry Molecular Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Biochemistry Molecular Biology |
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