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Nucleotide metabolism crosstalk in cancer A single cell approach

DNA synthesis is essential for cell proliferation. Nucleotides, the basic building blocks of nucleic acids, are made by nucleotide de novo synthesis (DNS), and DNS disruption is detrimental to rapidly proliferating cancer cells. E... ver más

14/07/2026

IBT INSTITUTE OF B...

157K€

Presupuesto del proyecto: 157K€

Líder del proyecto

BIOTECHNOLOGICKY USTAV AV CR VVI No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2021-03-19

MSCA-IF-2020: Individual Fellowships

I+D

Cerrada hace 4 años

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No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

IBT INSTITUTE OF BIOTECHNOLO...

156.98K€ | Lider

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Duración del proyecto: 63 meses Fecha Inicio: 2021-03-19
Fecha Fin: 2026-07-14

Líder del proyecto

BIOTECHNOLOGICKY USTAV AV CR VVI No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 157K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto DNA synthesis is essential for cell proliferation. Nucleotides, the basic building blocks of nucleic acids, are made by nucleotide de novo synthesis (DNS), and DNS disruption is detrimental to rapidly proliferating cancer cells. Established >70 years ago, anti-nucleotide therapy was one of the first approaches to treat cancer, but it suffers high rate of resistance and relapse. DNS can be bypassed by an uptake of extracellular nucleotides or by recycling in salvage pathways, possibly a reason for limited efficacy of anti-nucleotide therapy. To date, the cellular sources of nucleotides in normal tissue and in tumors in vivo remain poorly characterized. The central goal of this project is to define these nucleotide sources, understand the intercellular metabolic crosstalk of nucleotides in tumors, and characterize the adaptations to DNS blockade in cancer and stromal cells. To reach these goals, I will use the totally new perspective brought by the single cell technology and combine my expertise in single cell omics and metabolism with the state-of-the-art mouse models and advanced bioinformatics available at the host institute. I propose an integrative in vivo approach using single cell RNA-sequencing, which in combination with genetic interventions will allow me to resolve dynamic expression profiles of individual cell types. I will use inducible mouse models to selectively disable DNS in the stroma (lungs of a host animal) and in cancer cells (orthotopic tumors from syngeneic DNS-deficient lung cancer cells) to generate tumors fully relying on nucleotides from internal or external sources, respectively. In parallel, I will perform in vivo CRISPR screen to identify genes whose lack represents a targetable metabolic dependency of DNS-disabled cancer cells. This innovative approach will shed novel insights into organization of tumor metabolic homeostasis and identify new targets with the potential to make major breakthrough in anti-nucleotide intervention in cancer.

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