This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. The leading work of Dr. Dean Li found that Robo4 plays a key role in stabilizing vascular networks by interacting with both Slit2 and Slit3. In vitro studies observed that treating Robo4-expressing human umbilical vein ECs with a soluble extracellular domain of Robo4 blocked Slit2 function and inhibited EC proliferation and migration, further supporting that Robo4 promotes angiogenesis. These studies have established the critical proangiogenic role of Slit-Robo4 interaction in angiogenesis. The production of structurally characterized HS and CS and the development of mutant endothelial cell lines, combined with cell-surface ligand binding and endothelial cell function assays, can greatly advance our knowledge and understanding of the regulatory role of HSPGs in Robo4 function and signaling. The combination of Resource recombinant protein expression, and the in vitro screening and synthesis of high affinity ligands will provide a platform for the rational design of glycosaminoglycan agents for modulation of Robo4 function in angiogenesis.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR005351-22
Application #
8361819
Study Section
Special Emphasis Panel (ZRG1-IMST-A (40))
Project Start
2011-02-01
Project End
2012-01-31
Budget Start
2011-02-01
Budget End
2012-01-31
Support Year
22
Fiscal Year
2011
Total Cost
$1,772
Indirect Cost
Name
University of Georgia
Department
Type
Organized Research Units
DUNS #
004315578
City
Athens
State
GA
Country
United States
Zip Code
30602
Hannides, Angelos K; Aller, Robert C (2016) Priming effect of benthic gastropod mucus on sedimentary organic matter remineralization. Limnol Oceanogr 61:1640-1650
Revoredo, Leslie; Wang, Shengjun; Bennett, Eric Paul et al. (2016) Mucin-type O-glycosylation is controlled by short- and long-range glycopeptide substrate recognition that varies among members of the polypeptide GalNAc transferase family. Glycobiology 26:360-76
Zhao, Wujun; Zhu, Taotao; Cheng, Rui et al. (2016) Label-Free and Continuous-Flow Ferrohydrodynamic Separation of HeLa Cells and Blood Cells in Biocompatible Ferrofluids. Adv Funct Mater 26:3990-3998
Wu, Liang; Viola, Cristina M; Brzozowski, Andrzej M et al. (2015) Structural characterization of human heparanase reveals insights into substrate recognition. Nat Struct Mol Biol 22:1016-22
Qiu, Hong; Xiao, Wenyuan; Yue, Jingwen et al. (2015) Heparan sulfate modulates Slit3-induced endothelial cell migration. Methods Mol Biol 1229:549-55
Li, Zixuan; Moniz, Heather; Wang, Shuo et al. (2015) High structural resolution hydroxyl radical protein footprinting reveals an extended Robo1-heparin binding interface. J Biol Chem 290:10729-40
Liu, Lin; Zha, Jingying; DiGiandomenico, Antonio et al. (2015) Synthetic Enterobacterial Common Antigen (ECA) for the Development of a Universal Immunotherapy for Drug-Resistant Enterobacteriaceae. Angew Chem Int Ed Engl 54:10953-7
Czuchry, Diana; Desormeaux, Paul; Stuart, Melissa et al. (2015) Identification and Biochemical Characterization of the Novel ?2,3-Sialyltransferase WbwA from Pathogenic Escherichia coli Serotype O104. J Bacteriol 197:3760-8
Li, Xiuru; Fang, Tao; Boons, Geert-Jan (2014) Preparation of well-defined antibody-drug conjugates through glycan remodeling and strain-promoted azide-alkyne cycloadditions. Angew Chem Int Ed Engl 53:7179-82
Zhang, Fuming; Moniz, Heather A; Walcott, Benjamin et al. (2014) Probing the impact of GFP tagging on Robo1-heparin interaction. Glycoconj J 31:299-307

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