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Investigating the energy homeostasis of cellular calcium signalling (360G-Wellcome-211927_Z_18_Z)

Cellular calcium signalling is a ubiquitous and fundamental mechanism driving many processes in cell physiology. However it carries a significant energetic cost: calcium that enters the cytosol must be removed or sequestered by ATPases. In this project we propose to explore the mechanisms involved in maintaining energetic homeostasis in the face of this energy demand. The transfer of calcium signals to mitochondria is thought to support energy production, as it upregulates the rate limiting enzymes of the TCA cycle, increasing the rate of ATP production, although extrusion of calcium from the mitochondria also carries an energetic cost. The recent development of new targeted fluorescent reporters allows detailed exploration of compartmental ATP generation, making these questions accessible. We will therefore use fluorescence microscopy and imaging of a novel mitochondrial targeted ATP reporter to measure changes in cytosolic and mitochondrial ATP in response to changes in cytosolic and/or mitochondrial calcium signals to address these fundamental questions in cell biology. It is important to understand the fundamental mechanisms of cellular energy homeostasis so that we can better understand how mitochondrial dysfunction, associated with many disease states, undermines the ability to match energy demand with energy production.

£0

31 May 2018

Grant details
Amount Awarded 0
Applicant Surname Gross
Approval Committee Internal Decision Panel
Award Date 2018-05-31T00:00:00+00:00
Financial Year 2017/18
Grant Programme: Title Vacation Scholarships
Internal ID 211927/Z/18/Z
Lead Applicant Miss Golda Gross
Planned Dates: End Date 2018-08-10T00:00:00+00:00
Planned Dates: Start Date 2018-06-11T00:00:00+00:00
Recipient Org: Country United Kingdom
Region Greater London
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