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Discrimination of Dormant and Active Hematopoietic Stem Cells by G<sub>0</sub> Marker Reveals Dormancy Regulation by Cytoplasmic Calcium
Bibliographic Information
- Other Title
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- Discrimination of Dormant and Active Hematopoietic Stem Cells by G0 Marker Reveals Dormancy Regulation by Cytoplasmic Calcium
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Description
Quiescent hematopoietic stem cells (HSCs) are typically dormant, and only a few quiescent HSCs are active. The relationship between “dormant” and “active” HSCs remains unresolved. Here we generate a G0 marker (G0M) mouse line that visualizes quiescent cells and identify a small population of active HSCs (G0Mlow), which are distinct from dormant HSCs (G0Mhigh), within the conventional quiescent HSC fraction. Single-cell RNA-seq analyses show that the gene expression profiles of these populations are nearly identical but differ in their Cdk4/6 activity. Furthermore, high-throughput small-molecule screening reveals that high concentrations of cytoplasmic calcium ([Ca2+]c) are linked to dormancy of HSCs. These findings indicate that G0M separates dormant and active adult HSCs, which are regulated by Cdk4/6 and [Ca2+]c. This G0M mouse line represents a useful resource for investigating physiologically important stem cell subpopulations.
Journal
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- Cell Reports
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Cell Reports 29 (12), 4144-4158.e7, 2019-12
Elsevier BV
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Details 詳細情報について
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- CRID
- 1050567903426307840
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- NII Article ID
- 120006892032
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- ISSN
- 22111247
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- HANDLE
- 2433/255554
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE