Renal Flow
Financiado
Flow stimulated ion channel signalling in renal epithelia
The principal role of the kidneys is the critical regulation of our electrolyte balance, through an integrated system of reabsorption and secretion of fluid and electrolytes. Once blood is filtered in the glomeruli, renal electrol...
The principal role of the kidneys is the critical regulation of our electrolyte balance, through an integrated system of reabsorption and secretion of fluid and electrolytes. Once blood is filtered in the glomeruli, renal electrolyte reabsorption rate has to be adjusted to the variable electrolyte load associated with fluctuations of the pro-urine flow. The variable flow of pro-urine results in changing fluid-shear stress (FSS) that activates mechanosensitive signalling pathways in the epithelial cells of the renal tubule. Hence, the kidney’s sensing ability adapts epithelial function to the dynamic tubular environment. Preliminary data from the host laboratory shows that polycystin-1 (PC1), a mechanosensitive entity in renal epithelia, is involved in the FSS-mediated signalling response by increasing the ATP release. Moreover, mice with a kidney-specific knockout of the PC1 encoding gene, Pkd1, exhibit significant electrolyte imbalances. The focus of the present project proposal is to elucidate how FSS modulates renal electrolyte handling by exploiting PC1-deficient renal cells and animal models. This will provide new insights into the flow-sensing mechanisms in the kidney. Specifically, the role of ATP-mediated signalling pathways in the regulation of ion channels and transporters in the distal part of the nephron will be investigated. To this end, the following work packages will be addressed:
A) Control of electrolyte reabsorption by FSS.
Assess the expression and function of FSS-regulated transporter proteins in Pkd1-/- cells.
B) Translation of FSS into ATP signalling to regulate renal electrolyte handling.
It is my aim to identify the downstream proteins involved in FSS-mediated ATP signalling and decipher their role in electrolyte handling in vivo.
Taken together, this project focuses on the FSS-mediated signalling pathways. The goal is to elucidate the regulation exerted on ion channels and transporters linking the variable flow-rate of the pro-urine
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Duración del proyecto: 34 meses
Fecha Inicio: 2019-04-09
Fecha Fin: 2022-02-28
Fecha Fin: 2022-02-28
Línea de financiación: concedida
El organismo H2020 notifico la concesión del proyecto el día 2022-02-28
Línea de financiación objetivo
El proyecto se financió a través de la siguiente ayuda:
MSCA-IF-2018:
Individual Fellowships
Cerrada
hace 6 años
Presupuesto
El presupuesto total del proyecto asciende a
176K€
Líder del proyecto
STICHTING RADBOUD UNIVERSITEIT
No se ha especificado una descripción o un objeto social para esta compañía.
Perfil tecnológico
TRL
4-5
Perfil tecnológico
TRL
4-5
776.07K€ |
Participante