Large-scale in vivo imaging of the zebrafish left-right organizer (Kupffer's vesicle) combined with fluid dynamics calculations allows to quantitatively test the possible flow detection mechanisms and supports the flow transport of chemical signals as the mechanism of side determination.
Hanh Thi-Kim Vu, Jochen C Rink ... Alejandro Sánchez Alvarado
Planarians provide evidence for a common evolutionary origin of vertebrate and invertebrate excretory systems and provide a novel experimental model to study human kidney diseases.
Charles E MacKay, M Dennis Leo ... Jonathan H Jaggar
PKD2 (polycystin-2) channels are a major component of a flow-sensing signaling mechanism in endothelial cells that stimulates vasodilation and reduces blood pressure.
A hydrodynamic model of fish swimming in a channel predicts a critical flow speed for fish to successfully swim against a flow, unveiling a passive mechanism for rheotaxis to emerge without access to any sensory information.
Genetic studies reveal that mosaic inactivation of ccm2 causes characteristic cerebral cavernous malformations in adult zebrafish and aberrant responses to blood flow that induce the formation of a lethal embryonic multi-cavernous venous malformation.
Charles E MacKay, Miranda Floen ... Jonathan H Jaggar
Flow stimulates PC-1/PC-2 clusters in the plasma membrane of endothelial cells, leading to Ca2+ influx, NOS, SK channel, and IK channel activation, vasodilation, and a reduction in blood pressure.
SWELL1 is required for basal, stretch, and flow-mediated endothelial AKT-eNOS signaling in vitro and protects against angiotensin-induced hypertension and diabetes-associated vascular dysfunction in vivo.