Pulsed-field gel electrophoretic analysis of DNA double-strand breaks in mammalian cells using photostimulable storage phosphor imaging.
Pulsed-field gel electrophoretic analysis of DNA double-strand breaks in mammalian cells using photostimulable storage phosphor imaging.
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使用光刺激存储荧光成像对哺乳动物细胞中 DNA 双链断裂进行脉冲场凝胶电泳分析。
DOI:
10.1080/09553009414550611
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发表时间:
1994
影响因子:
2.6
通讯作者:
Tofilon,PJ
中科院分区:
文献类型:
--
作者:
Story,MD;Mendoza,EA;Meyn,RE;Tofilon,PJ
Double-strand break (dsb) induction and repair was determined in the human colon carcinoma cell line clone A using pulsed-field gel electrophoresis (PFGE) coupled with photostimulable storage phosphor imaging technology. Because14C-radioactivity was measured in a dried agarose gel following electrophoresis, no laborious processing of the gel, cutting out regions of interest, liquid scintillation counting, etc., was necessary thereby saving labour, time and cost. The signal generated by phosphor screens was linear over 5 logs and sensitive to low levels of radionuclide exposure. Migration of broken DNA into the gel upon electrophoresis was determined to be log-linear as as a function of dose, and dsb rejoining after irradiation could be measured for exposures as low as 5 Gy. The kinetic parameters of dsb rejoining are independent of the initial dose delivered within experimental error over the range of 5–20 Gy and complete after 4h of recovery. The use of photostimulable storage phosphor imaging allows the use of low levels of radionuclide incorporation for DSB analysis in radiosensitive mammalian cells that would not be possible by other methods.
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影响因子:
3.4
作者:
Bill,CA;Garrett,KC;Harrell,R;Tofilon,PJ
通讯作者:
Tofilon,PJ
影响因子:
3.4
作者:
Warters,RL;Lyons,BW
通讯作者:
Lyons,BW
影响因子:
3.4
作者:
Stamato,TD;Denko,N
通讯作者:
Denko,N
影响因子:
2.6
作者:
BLOCHER, D;EINSPENNER, M;ZAJACKOWSKI, J
通讯作者:
ZAJACKOWSKI, J
影响因子:
2.9
作者:
JOHNSTON, RF;PICKETT, SC;BARKER, DL
通讯作者:
BARKER, DL