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EU-Förderung (224.934 €): Monitoring cancer stem cell dynamics and therapeutic response in BRCA2-deficient breast tumour cells Hor04.03.2020 EU-Rahmenprogramm für Forschung und Innovation "Horizont"
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Monitoring cancer stem cell dynamics and therapeutic response in BRCA2-deficient breast tumour cells
Heterozygous germ line mutations in the breast cancer susceptibility genes (BRCA) 1 or 2 predispose carriers to breast, ovarian, pancreatic and prostate cancers. Significant evidence has accumulated in recent years on vulnerabilities specific to BRCA1/2-deficient tumours, leading to the development of personalized therapies, such as poly-ADP ribose polymerase (PARP) inhibitors. However, tumours develop resistance to these therapies, with tumour heterogeneity and enrichment in cancer stem cell (CSC) sub-population as an underlying resistance mechanism. How the genomic instability intrinsic to BRCA1/2 inactivation impacts on CSC survival and propagation during tumorigenesis and their relevance to the response to therapy has not yet been established. Previous results obtained in the host laboratory show that BRCA2 loss is associated, in the long term (28 days after BRCA2 abrogation), with upregulation of genes involved in metastasis and CSC markers, suggesting BRCA2-deficient cells can acquire metastatic and tumour-initiating capacity. In the current project proposal, we intend to study at single-cell resolution the relationship between CSCs and the response to PARP inhibitors and ionizing radiation (IR) in cancer cell lines and patient-derived xenografts (PDXs) lacking BRCA2 . We will develop a combined single-cell RNA sequencing (scRNA-seq) and spatial transcriptomics (ST) experimental approach to characterize BRCA2-deficient CSC subpopulations and to monitor the spatio-temporal dynamics of the CSC signature. This will enable us not only to understand the molecular mechanisms driving cell plasticity in models of BRCA2 inactivation, but also to evaluate the CSC impact on the response of BRCA-mutated tumours to current targeting therapies.
Geförderte Unternehmen:
| Firmenname | Förderungssumme |
| The Chancellor, Masters and Scholars of the University of Oxford | 224.934 € |
Quelle: https://cordis.europa.eu/project/id/886045
Diese Bekanntmachung wurde von Englisch nach Deutsch übersetzt. Die Bekanntmachung bezieht sich auf einen vergangenen Zeitpunkt, und spiegelt nicht notwendigerweise den heutigen Stand wider. Der aktuelle Stand wird auf folgender Seite wiedergegeben: Chancellor, Masters AND Scholars OF THE University, Oxford, Großbritannien.
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