Abstract:
:Fluorescent ubiquitination-based cell cycle indicator (Fucci) technology utilizing the cell cycle-dependent proteolysis of ubiquitin oscillators enables visualization of cell cycle progression in living cells. The Fucci probe consists of two chimeric fluorescent proteins, FucciS/G2/M and FucciG1, which label the nuclei of cells in S/G2/M phase green and those in G1 phase red, respectively. In this study, we generated Fucci transgenic mice and analyzed transgene expression in hematopoietic cells using flow cytometry. The FucciS/G2/M-#474 and FucciG1-#639 mouse lines exhibited high-level transgene expression in most hematopoietic cell populations. The FucciG1-#610 line expressed the transgene at high levels predominantly in the hematopoietic stem cell (HSC) population. Analysis of the HSC (CD34(-)KSL: CD34(-/low)c-Kit(+)Sca-1(+)lineage marker(-)) population in the transgenic mice expressing both FucciS/G2/M and FucciG1 (#474/#610) confirmed that more than 95% of the cells were in G0/G1 phase, although the FucciG1(red) intensity was heterogeneous. An in vivo competitive repopulation assay revealed that repopulating activity resided largely in the FucciG1(red)(high) fraction of CD34(-)KSL cells. Thus, the CD34(-)KSL HSC population can be further purified on the basis of the Fucci intensity.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Yo M,Sakaue-Sawano A,Noda S,Miyawaki A,Miyoshi Hdoi
10.1016/j.bbrc.2014.12.074subject
Has Abstractpub_date
2015-01-30 00:00:00pages
7-11issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(14)02256-6journal_volume
457pub_type
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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doi:10.1006/bbrc.1996.0084
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doi:10.1006/bbrc.1995.2056
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journal_title:Biochemical and biophysical research communications
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更新日期:2005-09-30 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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doi:10.1006/bbrc.1996.1532
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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更新日期:1988-06-16 00:00:00