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Publication

DNA Damage Signaling-Induced Cancer Cell Reprogramming as a Driver of Tumor Relapse.

Molecular cell | 2019

Accumulating evidence supports the role of the DNA damage response (DDR) in the negative regulation of tumorigenesis. Here, we found that DDR signaling poises a series of epigenetic events, resulting in activation of pro-tumorigenic genes but can go as far as reactivation of the pluripotency gene OCT4. Loss of DNA methylation appears to be a key initiating event in DDR-dependent OCT4 locus reactivation although full reactivation required the presence of a driving oncogene, such as Myc and macroH2A downregulation. Using genetic-lineage-tracing experiments and an in situ labeling approach, we show that DDR-induced epigenetic reactivation of OCT4 regulates the resistance to chemotherapy and contributes to tumor relapse both in mouse and primary human cancers. In turn, deletion of OCT4 reverses chemoresistance and delays the relapse. Here, we uncovered an unexpected tumor-promoting role of DDR in cancer cell reprogramming, providing novel therapeutic entry points for cancer intervention strategies.

Pubmed ID: 30954402 RIS Download

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Associated grants

Agency: Medical Research Council, United Kingdom
Id: MC_PC_12009

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Addgene (tool)

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Non-profit plasmid repository dedicated to helping scientists around the world share high-quality plasmids. Facilitates archiving and distributing DNA-based research reagents and associated data to scientists worldwide. Repository contains over 65,000 plasmids, including special collections on CRISPR, fluorescent proteins, and ready-to-use viral preparations. There is no cost for scientists to deposit plasmids, which saves time and money associated with shipping plasmids themselves. All plasmids are fully sequenced for validation and sequencing data is openly available. We handle the appropriate Material Transfer Agreements (MTA) with institutions, facilitating open exchange and offering intellectual property and liability protection for depositing scientists. Furthermore, we curate free educational resources for the scientific community including a blog, eBooks, video protocols, and detailed molecular biology resources.

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Mendeley Data (tool)

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A free reference manager and academic social network to organize your research, collaborate with others online, and discover the latest research. Automatically generate bibliographies, Collaborate easily with other researchers online, Easily import papers from other research software, Find relevant papers based on what you're reading, Access your papers from anywhere online, Read papers on the go with the iPhone app. The software, Mendeley Desktop, offers: * Automatic extraction of document details * Efficient management of your papers * Sharing and synchronization of your library (or parts of it) * Additional features: A plug-in for citing your articles in Microsoft Word, OCR (image-to-text conversion, so you can full-text search all your scanned PDFs), etc The website, Mendeley Web, complements Mendeley Desktop by offering these features: * An online back up of your library * Statistics of all things interesting * A research network that allows you to keep track of your colleagues' publications, conference participations, awards etc * A recommendation engine for papers that might interest you

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QIAGEN (tool)

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A commercial organization which provides assay technologies to isolate DNA, RNA, and proteins from any biological sample. Assay technologies are then used to make specific target biomolecules, such as the DNA of a specific virus, visible for subsequent analysis.

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