title: Sphingosine 1-phosphate receptor 1 regulates the directional migration of lymphatic endothelial cells in response to fluid shear stress.
abstract: The endothelial cells that line blood and lymphatic vessels undergo complex, collective migration and rearrangement processes during embryonic development, and are known to be exquisitely responsive to fluid flow. At present, the molecular mechanisms by which endothelial cells sense fluid flow remain incompletely understood. Here, we report that both the G-protein-coupled receptor sphingosine 1-phosphate receptor 1 (S1PR1) and its ligand sphingosine 1-phosphate (S1P) are required for collective upstream migration of human lymphatic microvascular endothelial cells in an in vitro setting. These findings are consistent with a model in which signalling via S1P and S1PR1 are integral components in the response of lymphatic endothelial cells to the stimulus provided by fluid flow.
authors.affiliation: Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA.
authors.forename: Vinay N
authors.initials: VN
authors.lastname: Surya
authors.affiliation: Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA.
authors.forename: Eleftheria
authors.initials: E
authors.lastname: Michalaki
authors.affiliation: Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA.
authors.forename: Eva Y
authors.initials: EY
authors.lastname: Huang
authors.affiliation: Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA.
authors.forename: Gerald G
authors.initials: GG
authors.lastname: Fuller
authors.affiliation: Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA alex.dunn@stanford.edu.|Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA.
authors.forename: Alexander R
authors.identifier: 0000-0001-6096-4600
authors.initials: AR
authors.lastname: Dunn
mesh_terms: D002465:Cell Movement; D002478:Cells, Cultured; D042783:Endothelial Cells / Q000378:metabolism*; D006801:Humans; D008246:Lysophospholipids / Q000378:metabolism*; D049349:Receptors, Lysosphingolipid / Q000378:metabolism*; D033081:Shear Strength; D015398:Signal Transduction; D013110:Sphingosine / Q000031:analogs & derivatives* / Q000378:metabolism
chemical_list: D008246:Lysophospholipids; D049349:Receptors, Lysosphingolipid; C060506:sphingosine 1-phosphate; D013110:Sphingosine
keywords: S1PR1; fluid shear stress; lymphatic endothelial cell; migration