Priming therapy by targeting enhancer-initiated pathways in patient-derived pancreatic cancer cellsResearch in context

Autor: Nicolas A. Fraunhoffer, Aura I. Moreno Vega, Analía Meilerman Abuelafia, Marie Morvan, Emilie Lebarbier, Tristan Mary-Huard, Michael Zimmermann, Gwen Lomberk, Raul Urrutia, Nelson Dusetti, Yuna Blum, Remy Nicolle, Juan Iovanna
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: EBioMedicine, Vol 92, Iss , Pp 104602- (2023)
Druh dokumentu: article
ISSN: 2352-3964
DOI: 10.1016/j.ebiom.2023.104602
Popis: Summary: Background: Systems biology leveraging multi-OMICs technologies, is rapidly advancing development of precision therapies and matching patients to targeted therapies, leading to improved responses. A new pillar of precision oncology lies in the power of chemogenomics to discover drugs that sensitizes malignant cells to other therapies. Here, we test a chemogenomic approach using epigenomic inhibitors (epidrugs) to reset patterns of gene expression driving the malignant behavior of pancreatic tumors. Methods: We tested a targeted library of ten epidrugs targeting regulators of enhancers and super-enhancers on reprogramming gene expression networks in seventeen patient-derived primary pancreatic cancer cell cultures (PDPCCs), of both basal and classical subtypes. We subsequently evaluated the ability of these epidrugs to sensitize pancreatic cancer cells to five chemotherapeutic drugs that are clinically used for this malignancy. Findings: To comprehend the impact of epidrug priming at the molecular level, we evaluated the effect of each epidrugs at the transcriptomic level of PDPCCs. The activating epidrugs showed a higher number of upregulated genes than the repressive epidrugs (χ2 test p-value
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