p53 Phosphorylation in Mouse Skin and In vitro Human Skin Model by High-dose-radiation Exposure
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- KOIKE Manabu
- Radiation Hazards Research Group, National Institute of Radiological Sciences
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- SUGASAWA Jun
- Radiation Hazards Research Group, National Institute of Radiological Sciences
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- KOIKE Aki
- Radiation Hazards Research Group, National Institute of Radiological Sciences
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- KOHNO Yoko
- Showa University School of Dentistry
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抄録
The skin is an external organ that is most frequently exposed to radiation. High-dose radiation initiates and promotes acute radiation injury. Thus, it is important to investigate the influence of high-dose radiation exposure on the skin at the molecular level. The post-translational modification of p53 plays a central role in radiation responses, including apoptosis and cell growth arrest. Although it is well known that ataxia telangiectasia mutated (ATM) kinase and DNA-dependent protein kinase (DNA-PK) can phosphorylate Ser15/Ser18 of p53 in vitro, the post-translational modification pattern and the modifier of p53 in the skin after exposure to high-dose X-rays are not yet well understood. Here we show that the phosphorylation of p53 on Ser15/Ser18, as well as the phosphorylation of histone H2AX on Ser139, was detected in the keratinocytes of the mouse skin and human skin models after high-dose X-ray irradiation. Following high-dose X-ray irradiation, both proteins were also phosphorylated in the skin keratinocytes of both ATM gene knockout mice and DNA-PK-deficient SCID mice.<br>
収録刊行物
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- Journal of Radiation Research
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Journal of Radiation Research 46 (4), 461-468, 2005
Journal of Radiation Research 編集委員会
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詳細情報 詳細情報について
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- CRID
- 1390001205217645312
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- NII論文ID
- 110004061522
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- NII書誌ID
- AA00705792
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- ISSN
- 13499157
- 04493060
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- NDL書誌ID
- 7752052
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可