Endothelial cells differentially sense laminar and disturbed flows by altering the lipid order of their plasma and mitochondrial membranes
Kimiko Yamamoto, Yuji Shimogonya, Ryohei Maeno, Kenshiroh Kawabe, Joji Ando
Abstract
How vascular endothelial cells (ECs) differentially sense laminar and disturbed flows and trigger intracellular signaling remains unclear. Here, we show that EC plasma membranes act as mechanosensors to discriminate between laminar and disturbed flows by undergoing opposite changes in their lipid order. Similar lipid order changes occur simultaneously in the mitochondrial membranes, which are linked to changes in mitochondrial function, that is, increased ATP production for laminar flow and increased H 2 O 2 release for disturbed flow.
Topics & Concepts
Laminar flowMembraneCell biologyIntracellularMitochondrionFunction (biology)ChemistryBiophysicsBiologyBiochemistryMechanicsPhysicsErythrocyte Function and PathophysiologyHemoglobin structure and functionMitochondrial Function and Pathology