Ataxia telangiectasia derived iPS cells show preserved x-ray sensitivity and decreased chromosomal instability.

Ataxia telangiectasia derived iPS cells show preserved x-ray sensitivity and decreased chromosomal instability.
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DOI:
10.1038/srep05421
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发表时间:
2014-06-27
期刊:
影响因子:
4.6
通讯作者:
Umezawa A
Umezawa A
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Fukawatase Y;Toyoda M;Okamura K;Nakamura K;Nakabayashi K;Takada S;Yamazaki-Inoue M;Masuda A;Nasu M;Hata K;Hanaoka K;Higuchi A;Takubo K;Umezawa A

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Ataxia telangiectasia is a neurodegenerative inherited disease with chromosomal instability and hypersensitivity to ionizing radiation. iPS cells lacking ATM (AT-iPS cells) exhibited hypersensitivity to X-ray irradiation, one of the characteristics of the disease. While parental ataxia telangiectasia cells exhibited significant chromosomal abnormalities, AT-iPS cells did not show any chromosomal instability in vitro for at least 80 passages (560 days). Whole exome analysis also showed a comparable nucleotide substitution rate in AT-iPS cells. Taken together, these data show that ATM is involved in protection from irradiation-induced cell death.
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