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IL7sigNETure

IL-7/IL-7R signaling networks in health and malignancy

Funding Agency European Commission
Funding Programme Horizon 2020
Call/Topic ERC-CoG-2014
Project reference 648455
Start date 2015.09.01
Duration 60 months
Total investment EUR 1 988 125 (EU contribution: EUR 1 988 125)
Project Coordinator João Barata
Project Beneficiaries Instituto de Medicina Molecular João Lobo Antunes (iMM), Portugal

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This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 648455.

  • Overview

    Deregulation of signal transduction is a feature of tumor cells and signaling therapies are gaining importance in the growing arsenal against cancer. However, their full potential can only be achieved once we overcome the limited knowledge on how signaling networks are wired in cancer cells. Interleukin 7 (IL7) and its receptor (IL7R) are essential for normal T-cell development and function. However, they can also promote autoimmunity, chronic inflammation and cancer. We showed that patients with T-cell acute lymphoblastic leukemia (T-ALL), an aggressive hematological cancer, can display IL7R gain-of-function mutations leading to downstream signaling activation and cell transformation. Despite the biological relevance of IL7 and IL7R, the characterization of their signaling effectors remains limited. Here, we propose to move from the single molecule/pathway-centered analysis that has characterized the research on IL7/IL7R signaling, into a ‘holistic’ view of the IL7/IL7R signaling landscape. To do so, we will employ a multidisciplinary strategy, in which data from complementary high throughput analyses, informing on different levels of regulation of the IL7/IL7R signaling network, will be integrated via a systems biology approach, and complemented by cell and molecular biology experimentation and state-of-the-art in vivomodels. The knowledge we will generate should have a profound impact on the understanding of the fundamental mechanisms by which IL7/IL7R signaling promotes leukemia and reveal novel targets for fine-tuned therapeutic intervention in T-ALL. Moreover, the scope of insights gained should extend beyond leukemia. Our in-depth, systems-level characterization of IL7/IL7R signaling will constitute a platform with extraordinary potential to illuminate the molecular role of the IL7/IL7R axis in other cancers (e.g. breast and lung) and pathological settings where IL7 has been implicated, such as HIV infection, multiple sclerosis and rheumatoid arthritis.

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