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Παρασκευή 7 Σεπτεμβρίου 2018

Specific Targeting of Oncogenes Using CRISPR Technology

In recent decades, tools of molecular biology have enabled researchers to genetically modify model organisms, including human cells. RNAi, zinc-finger nucleases, transcription activator–like effector nucleases, CRISPR-Cas9 (clustered regularly-interspaced short palindromic repeats and CRISPR-associated protein 9), retro- or lentiviral gene transfer, and many other methods can be utilized to remove genes, add genes, or change their expression. Within the same timeframe, survival rates for many highly malignant tumor diseases have not improved substantially. If modern medicine could apply even a subset of research methods in clinical management, which are already well established and controllable in basic research laboratories, this could strongly impact patients' prognosis. CRISPR-Cas9 is a method to precisely target and manipulate genomic loci and recent studies have attempted to use this method as a genetic treatment for Duchenne muscular dystrophy, blood disorders, autosomal-dominant hearing loss, and cancer. Some of these approaches target mutant genomic sequences specifically and try to avoid affecting the respective normal loci. Considering obvious genetic risks opposing the objected benefits, data are needed to show whether CRISPR technology is suitable as a future cancer therapy approach or not. Here, we develop strategies for the specific targeting of viral cancer drivers and oncogenes activated by mutation, using the latest CRISPR technology. Cancer Res; 1–7. ©2018 AACR.

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