Project description
Toxic hyperactivation of oncogenic signalling to kill cancer cells
Cancer cells likely regulate their own homeostasis by balancing oncogenic pathways driving tumorigenesis with oncogenic signalling, whose hyperactivation can be toxic to them. The ERC-funded PARADOX project aims to disrupt this homeostasis with deliberate hyperactivation of oncogenic signalling and perturbation of the activated stress responses to selectively kill cancer cells. Preliminary results demonstrated the effectiveness of this approach in colon cancer in vivo. However, the cancer cells developed resistance to it through selective downregulation of oncogenic signalling resulting in both reduced oncogenic signalling and reduced oncogenic traits. PARADOX will use single-cell multi-omics and CRISPR technologies to understand this paradox and optimise this innovative therapy on pre-malignant lesions.
Objective
Cancer cell homeostasis requires a balance between activated oncogenic pathways driving tumorigenesis and engagement of stress-response programs to counteract the inherent toxicity of such aberrant signaling. Indeed, emerging evidence suggests that hyperactivated oncogenic signaling can also be toxic to cancer cells, indicating that cancer cells select optimal levels of oncogenic signaling rather than maximal levels.
I propose here a fundamentally different approach to the treatment of cancer, based on deliberate hyperactivation of oncogenic signaling, combined with perturbation of the activated stress responses to selectively kill cancer cells. We will use drugs that further activate oncogenic signaling in cancer cells (protein phosphatase 2A (PP2A) inhibitors, GSK3 inhibitors, PKC activators, DUSP inhibitors) and study the associated toxicities using single cell omics technologies. We will then use CRISPR and compound screens to identify the vulnerabilities of such drug-treated cells. This will identify effective combination therapies using this paradoxical approach. We have delivered initial proof of concept for this notion by demonstrating that hyper-activation of oncogenic signaling in colon cancer by small molecule inhibition of PP2A, combined with inhibition of the mitotic kinase WEE1 results in dramatic anti-tumor responses in vivo. Most strikingly, we found that cancer cells develop resistance to this therapy through selective downregulation of oncogenic signaling to evade the stress imposed by hyperactivation of oncogenic signaling. Consequently, resistance to this hyperactivation therapy was associated with both reduced oncogenic signaling and oncogenic traits in vivo. Here, we aim to understand and exploit toxicities associated with paradoxical activation of oncogenic signaling using multi-omics technologies, study how cancer cells can develop tumor suppressive drug resistance and address the effects of this type of therapy on pre-malignant lesions.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences biochemistry biomolecules proteins
- medical and health sciences clinical medicine oncology
- medical and health sciences basic medicine physiology homeostasis
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.1 - European Research Council (ERC)
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-ERC - HORIZON ERC Grants
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2023-ADG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
1066 CX AMSTERDAM
Netherlands
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