Illuminating chromatin compaction in live cells and fixed tissues using SiR-DNA fluorescence lifetime
Illuminating chromatin compaction in live cells and fixed tissues using SiR-DNA fluorescence lifetime
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使用 SiR-DNA 荧光寿命照亮活细胞和固定组织中的染色质压缩
DOI:
10.1101/2020.05.02.073536
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Hockings C
中科院分区:
文献类型:
--
作者:
Hockings C
The global compaction state of chromatin in a nucleus is an important component of cell identity that has been difficult to measure. We have developed a quantitative method to measure the chromatin compaction state in both live and fixed cells, without the need for genetic modification, using the fluorescence lifetime of SiR-DNA dye. After optimising this method using live cancer cell lines treated to induce chromatin compaction or decompaction, we observed chromatin compaction in differentiating epithelial cells in fixed tissue sections, as well as local decompaction foci that may represent transcription factories. In addition, we shed new light on chromatin decompaction during embryonic stem cell transition out of their naïve pluripotent state. This method will be useful to studies of nuclear architecture, and may be easy, cheap, and accessible enough to serve as a general assay of ‘stem-ness’.
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影响因子:
11.1
作者:
Smith, Austin
通讯作者:
Smith, Austin
DOI:
10.1016/j.tig.2015.11.001
发表时间:
2016-01
期刊:
Trends in genetics : TIG
影响因子:
--
作者:
Becker JS;Nicetto D;Zaret KS
通讯作者:
Zaret KS
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
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通讯作者:
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影响因子:
48
作者:
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通讯作者:
Olivo-Marin, Jean-Christophe
影响因子:
7
作者:
Dostie, Josee;Richmond, Todd A.;Dekker, Job
通讯作者:
Dekker, Job