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Neurohormonal regulation of energetically-coupled transporters involved in nutrient absorption and pHi homeostasis

ReferenceD17277
Principal Investigator / Supervisor Professor David Thwaites
Co-Investigators /
Co-Supervisors
Professor Nicholas Simmons
Institution Newcastle University
DepartmentSchool of Cell and Molecular Biosciences
Funding typeResearch
Value (£) 383,152
StatusCompleted
TypeResearch Grant
Start date 01/04/2002
End date 31/12/2005
Duration45 months

Abstract

This project seeks to define how control of intestinal enterocyte function optimises nutrient absorption in the form of small peptides. Coordinate regulation (at both cellular and molecular levels) of the transport protein hPepT1 and the Na+:H+ exchanger NHE3 will be investigated using the human intestinal epithelial cell line Caco-2 and a mouse knockout model. The cell signalling pathways activated by hormonal, neural and paracrine factors will be identified using a range of selective pharmacological tools. Experiments using intestinal tissues from NHE3-deficient mice will investigate the absolute dependence of hPepT1 activity on NHE3 coupling, and the adaptive alterations in gut function following extreme perturbation (NHE3 ablation).

Summary

unavailable
Committee Closed Committee - Agri-food (AF)
Research TopicsX – not assigned to a current Research Topic
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
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