Progressive maturation toward hematopoietic stem cells in the mouse embryo aorta

被引：66

作者：

Boisset, Jean-Charles ^{[1
,2
,3
]}

Clapes, Thomas ^{[1
,2
,3
]}

Klaus, Anna ^{[1
,2
,3
]}

Papazian, Natalie ^{[4
]}

Onderwater, Jos ^{[5
]}

Mommaas-Kienhuis, Mieke ^{[5
]}

Cupedo, Tom ^{[4
]}

Robin, Catherine ^{[1
,2
,3
,6
]}

机构：

[1] Royal Netherlands Acad Arts & Sci, Hubrecht Inst, Utrecht, Netherlands

[2] Univ Med Ctr Utrecht, NL-3584 CT Utrecht, Netherlands

[3] Erasmus Univ, Dept Cell Biol, Med Ctr, NL-3000 DR Rotterdam, Netherlands

[4] Erasmus Univ, Dept Hematol, Med Ctr, Rotterdam, Netherlands

[5] Leiden Univ, Med Ctr, Dept Mol Cell Biol, Leiden, Netherlands

[6] Univ Med Ctr, Dept Cell Biol, Utrecht, Netherlands

来源：

BLOOD | 2015年 / 125卷 / 03期

基金：

欧洲研究理事会;

关键词：

MURINE YOLK-SAC; HAEMOGENIC ENDOTHELIUM; AGM REGION; GENERATION; PROGENITORS; TRANSITION; EMERGENCE; CLUSTERS; LINEAGE; NICHE;

D O I：

10.1182/blood-2014-07-588954

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Clusters of cells attached to the endothelium of the main embryonic arteries were first observed a century ago. Present in most vertebrate species, such clusters, or intraaortic hematopoietic clusters (IAHCs), derive from specialized hemogenic endothelial cells and contain the first few hematopoietic stem cells (HSCs) generated during embryonic development. However, some discrepancies remained concerning the spatio-temporal appearance and the numbers of IAHCs and HSCs. Therefore, the exact cell composition and function of IAHCs remain unclear to date. We show here that IAHCs contain pre-HSCs (or HSC precursors) that can mature into HSCs in vivo (as shown by the successful long-term multilineage reconstitution of primary neonates and secondary adult recipients). Such IANC pre-HSCs could contribute to the HSC pool increase observed at midgestation. The novel insights in pre-HSC to HSC transition represent an important step toward generating transplantable HSCs in vitro that are needed for autologous HSC transplantation therapies.

引用

页码：465 / 469

页数：5

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