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[Current status of study on embryonic hematopoietic development in aorta-gonad-mesonephros -- review].

[Article in Chinese]

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  • 1Department of Cell Biology, Institute of Basic Medical Sciences, Beijing 100850, China.


Aorta-gonad-mesonephros (AGM) is well known as a main structure that de novo generates hematopoietic primary stem cells (HSC) in mid-gestation mammalian embryos. Hemogenic endothelium, and recently, subendothelial mesenchyme as well as hemangioblast are shown as contributing to blood formation in AGM region. AGM-HSC displays dynamic changes in surface markers, including CD41, CD45 and several endothelial-specific molecules. The novel finding of interleukin-3 as a potent regulator of AGM-HSC seems very interesting. Moreover, zebra fish model reveals PGE2 as a novel stimulator of HSC in AGM and kidney marrow, which is also the case in mouse hematopoietic tissues. Identification of mesenchymal stem cells with significant hematopoietic supporting capacity in AGM region suggests an alternative pathway to explore new molecules governing embryonic and adult hematopoiesis. In this paper, the hemogenic model in AGM region, surface markers on HSCs in AGM region and regulation of HSCs in AGM region were reviewed.

[PubMed - indexed for MEDLINE]
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