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Local intracerebral inhibition of IRE1 by MKC8866 sensitizes glioblastoma to irradiation/chemotherapy in vivo

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Le Reste, Pierre Jean | Pineau, R | Voutetakis, Konstantinos | Samal, J | Jegou, Gwenaele | Lhomond, Stéphanie | Gorman, Adrienne M | Samali, Afshin | Patterson, John B | Zeng, Q | Pandit, Abhay | Aubry, Marc | Soriano, Nicolas | Etcheverry, Amandine | Chatziioannou, Aristotelis | Mosser, Jean | Avril, Tony | Chevet, Eric

Edité par CCSD ; Elsevier -

International audience. Glioblastoma multiforme (GBM) is the most severe primary brain cancer. Despite an aggressive treatment comprising surgical resection and radio/chemotherapy, patient's survival post diagnosis remains short. A limitation for success in finding novel improved therapeutic options for such dismal disease partly lies in the lack of a relevant animal model that accurately recapitulates patient disease and standard of care. In the present study, we have developed an immunocompetent GBM model that includes tumor surgery and a radio/chemotherapy regimen resembling the Stupp protocol and we have used this model to test the impact of the pharmacological inhibition of the endoplasmic reticulum (ER) stress sensor IRE1, on treatment efficacy.

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