The DNA repair complex DNA-PK, a pharmacological target in cancer chemotherapy and radiotherapy |
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Authors: | Salles B Calsou P Frit P Muller C |
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Institution: | Institut de Pharmacologie et Biologie Structurale (IPBS) UMR CNRS 5089, Toulouse, France. bernard.salles@ipbs.fr |
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Abstract: | A line of investigation in the search for sensitizing tumor cells to chemotherapy or radiotherapy relies on the selection of DNA repair inhibitors. In the area of DNA repair mechanisms, DNA-dependent protein kinase (DNA-PK) represents a key complex. Indeed DNA-PK is involved in the non-homologous end joining (NHEJ) process that corresponds to the major activity responsible for cell survival after ionizing radiation or chemotherapeutic treatment producing DNA double strand breaks. DNA-PK belongs to the PI3-K related kinase family and specific inhibitors have been recently selected and evaluated as radio- and chemo-sensitizers. These drugs, along with other ways to inhibit the DSBs repair process, are presented and discussed. |
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Keywords: | DNA repair DNA-dependent protein kinase (DNA-PK) Chemotherapy Radiotherapy |
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