title: Ionizing radiation, ion transports, and radioresistance of cancer cells.
abstract: The standard treatment of many tumor entities comprises fractionated radiation therapy which applies ionizing radiation to the tumor-bearing target volume. Ionizing radiation causes double-strand breaks in the DNA backbone that result in cell death if the number of DNA double-strand breaks exceeds the DNA repair capacity of the tumor cell. Ionizing radiation reportedly does not only act on the DNA in the nucleus but also on the plasma membrane. In particular, ionizing radiation-induced modifications of ion channels and transporters have been reported. Importantly, these altered transports seem to contribute to the survival of the irradiated tumor cells. The present review article summarizes our current knowledge on the underlying mechanisms and introduces strategies to radiosensitize tumor cells by targeting plasma membrane ion transports.
authors: Department of Radiation Oncology, University of Tübingen Tübingen, Germany.
authors: Stephan M
authors: SM
authors: Huber
authors: Lena
authors: L
authors: Butz
authors: Benjamin
authors: B
authors: Stegen
authors: Dominik
authors: D
authors: Klumpp
authors: Norbert
authors: N
authors: Braun
authors: Peter
authors: P
authors: Ruth
authors: Franziska
authors: F
authors: Eckert
keywords: DNA repair; cell cycle; ion channels; radiation therapy
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