Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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Outline of Final Research Achievements |
In this study, we aimed to elucidate the molecular mechanism of the cell cycle-specific regulation of chromosome end fusion leading to the cell carcinogenesis. We revealed that chromatin ubiquitination at the end of chromosomes induced by telomere dysfunction was largely diminished in S/G2 cell cycle phase. As a result, the recruitment of 53BP1, which is an essential factor for chromosome end fusion, is suppressed in S/G2 phase. We also elucidated that TRF2, the central factor for telomere protection, directly binds to the chromatin (core histone) to stabilize the chromosome ends.
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