Maintenance of the functional integrity of mouse hematopoiesis by EED and promotion of leukemogenesis by EED haploinsufficiency
Scientific Reports, ISSN: 2045-2322, Vol: 6, Issue: 1, Page: 29454
2016
- 13Citations
- 29Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations13
- Citation Indexes13
- 13
- CrossRef8
- Captures29
- Readers29
- 29
Article Description
Polycomb repressive complex 2 (PRC2) participates in transcriptional repression through methylation of histone H3K27. The WD-repeat protein embryonic ectoderm development (EED) is a non-catalytic but an essential component of PRC2 and its mutations were identified in hematopoietic malignancies. To clarify the role(s) of EED in adult hematopoiesis and leukemogenesis, we generated Eed conditional knockout (Eed "/ ") mice. Eed "/ " mice died in a short period with rapid decrease of hematopoietic cells. Hematopoietic stem/progenitor cells (HSPCs) were markedly decreased with impaired bone marrow (BM) repopulation ability. Cell cycle analysis of HSPCs demonstrated increased S-phase fraction coupled with suppressed G0/G1 entry. Genes encoding cell adhesion molecules are significantly enriched in Eed "/ " HSPCs, and consistently, Eed "/ " HSPCs exhibited increased attachment to a major extracellular matrix component, fibronectin. Thus, EED deficiency increases proliferation on one side but promotes quiescence possibly by enhanced adhesion to the hematopoietic niche on the other, and these conflicting events would lead to abnormal differentiation and functional defect of Eed "/ " HSPCs. In addition, Eed haploinsufficiency induced hematopoietic dysplasia, and Eed heterozygous mice were susceptible to malignant transformation and developed leukemia in cooperation with Evi1 overexpression. Our results demonstrated differentiation stage-specific and dose-dependent roles of EED in normal hematopoiesis and leukemogenesis.
Bibliographic Details
Springer Science and Business Media LLC
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