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- W2076055575 abstract "Cofilin is an actin-associated protein that belongs to the actin depolymerization factor/cofilin family and is important for regulation of actin dynamics. Cofilin can import actin monomers into the nucleus under certain stress conditions, however the biological effects of nuclear transport are unclear. In this study, we found that over-expression of cofilin led to increased radiation sensitivity in human non-small lung cancer H1299 cells. Cell survival as determined by colony forming assay showed that cells over-expressing cofilin were more sensitive to ionizing radiation (IR) than normal cells. To determine whether the DNA repair capacity was altered in cofilin over-expressing cells, comet assays were performed on irradiated cells. Repair of DNA damage caused by ionizing radiation was detected in cofilin over-expressing cells after 24 h of recovery. Consistent with this observation, the key components for repair of DNA double-strand breaks, including Rad51, Rad52, and Ku70/Ku80, were down-regulated in cofilin over-expressing cells after IR exposure. These findings suggest that cofilin can influence radiosensitivity by altering DNA repair capacity." @default.
- W2076055575 created "2016-06-24" @default.
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- W2076055575 date "2005-09-01" @default.
- W2076055575 modified "2023-09-23" @default.
- W2076055575 title "Enhancement of radiosensitivity in H1299 cancer cells by actin-associated protein cofilin" @default.
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- W2076055575 doi "https://doi.org/10.1016/j.bbrc.2005.07.073" @default.
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