Innovating Works

Survive

Financiado
Surviving metabolism acid handling and signalling
Metabolism generates vast quantities of acid, which exerts broad-spectrum biological effects because protein protonation is a powerful post-translational modification. Regulation of intracellular pH (pHi) is therefore a homeostati... Metabolism generates vast quantities of acid, which exerts broad-spectrum biological effects because protein protonation is a powerful post-translational modification. Regulation of intracellular pH (pHi) is therefore a homeostatic priority, but carefully orchestrated proton dynamics are a versatile signal. Extracellular acidity is an established chemical signature of tumours and has recently been proposed to convey a signal that shapes the phenotypic landscape of cancer. Cancer’s genetic instability yields diversity in acid handling and signalling, forming a substrate for selection under acid-stress. This is a plausible mechanism for disease progression and an analogy can be drawn to experimentally-verified hypoxic selection. Current models of acid handling in cancer are, however, based on population-averages of observations made at the cell level. This fails to appreciate diversity and the complexity inherent in tissues. We will produce a more complete understanding of acid handling that accounts for diffusive transport across tissue compartments and the role of the tumour stroma. A systems-approach of characterising pH-regulatory processes cell-by-cell will identify which components are liable to vary, and thus are a substrate for acid-driven somatic evolution. The long-term effects of proton signals on gene expression have not been tested, despite evidence for proton-sensing transcription factors. To address the mechanism for adaptation to acid-stress, proton-sensing transcription factors will be characterised from studies of gene expression under chemically and optogenetically operated pH stimuli. The definition of a cell’s fitness to survive at a particular microenvironment pH and its relationship with stemness remain unclear. Phenotyping pHi-gated subpopulations in terms of growth, stemness and tumourigenicity will define pH-fitness and its role in aggressiveness. In evolving to survive metabolism, cancer cells may acquire the ability to thrive in new niches. ver más
30/11/2023
UOXF
2M€
Duración del proyecto: 80 meses Fecha Inicio: 2017-03-01
Fecha Fin: 2023-11-30

Línea de financiación: concedida

El organismo H2020 notifico la concesión del proyecto el día 2023-11-30
Línea de financiación objetivo El proyecto se financió a través de la siguiente ayuda:
ERC-2016-COG: ERC Consolidator Grant
Cerrada hace 8 años
Presupuesto El presupuesto total del proyecto asciende a 2M€
Líder del proyecto
THE CHANCELLOR MASTERS AND SCHOLARS OF THE UN... No se ha especificado una descripción o un objeto social para esta compañía.
Perfil tecnológico TRL 4-5