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Heparan sulfate modulates Slit3-induced endothelial cell migration.
Hong Qiu1, Wenyuan Xiao, Jingwen Yue
1Department of Biochemistry and Molecular Biology, Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, GA, 30602-4712, USA.
Methods in Molecular Biology (Clifton, N.J.)
|October 19, 2014
Summary
Heparan sulfate is crucial for Slit3-induced endothelial cell migration. This study shows heparan sulfate acts as a co-receptor with Robo4, mediating angiogenesis and cell movement.
Area of Science:
- Biochemistry
- Cell Biology
- Molecular Biology
Background:
- Heparan sulfate (HS), a glycosaminoglycan, is vital in biological processes.
- Slit3, an axon guidance molecule, is identified as an HS-binding protein and angiogenic factor.
- Slit3 interacts with Robo4 on endothelial cells to promote angiogenesis.
Purpose of the Study:
- To investigate the co-reception role of heparan sulfate in Slit3-induced endothelial cell migration.
- To elucidate the mechanism of Slit3-Robo4 signaling in angiogenesis.
Main Methods:
- Utilized heparan sulfate-deficient mouse endothelial cells.
- Employed a Boyden chamber trans-well migration assay.
- Analyzed Slit3-mediated endothelial cell migration.
Main Results:
- Heparan sulfate deficiency significantly impaired Slit3-induced endothelial cell migration.
- Demonstrated the essential co-receptor function of heparan sulfate in Slit3-Robo4 signaling.
- Confirmed the role of HS in angiogenesis.
Conclusions:
- Heparan sulfate is indispensable for Slit3-mediated endothelial cell migration and angiogenesis.
- HS acts as a critical co-receptor, modulating Slit3-Robo4 interactions.
- Findings provide new insights into the molecular mechanisms of angiogenesis.
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