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Title: Intrinsic and extrinsic regulation of mammalian hematopoiesis in the fetal liver
Issue Date: 2014
Publisher: F. Hernández y Juan F. Madrid. Universidad de Murcia: Departamento de Biología Celular e Histología
Citation: Histology and Histopathology, vol. 29, nº 9, (2014)
ISSN: 1699-5848
Related subjects: CDU::5 - Ciencias puras y naturales::57 - Biología::576 - Biología celular y subcelular. Citología
Keywords: Fetal liver
Niche regulation
Hematopoietic stem cell
Abstract: The fetal liver (FL) is an important structure in expansion and differentiation of hematopoietic stem cells (HSC), but despite this little is known about the exact mechanisms in which FL hematopoiesis takes place. Primitive hematopoiesis gives way to definitive hematopoiesis at 12.5 dpc in mice and the process is regulated by a number of intrinsic and extrinsic factors. Intrinsic regulations are intracellular processes that have been reported to be important in the initiation of definitive hematopoiesis. Several structures are involved with extrinsic regulations of hematopoiesis within the FL, including hepatoblasts and liver sinusoidal endothelial cells (LSEC). Hepatoblasts and endothelial cells comprise separate niches involved in the extrinsic regulation of hematopoiesis. Studies have shown that cocultures with fetal liver stromal cells can promote the expansion of erythroid cells, although the way in which stromal cells do this is still unknown. Understanding the mechanisms in which hematopoiesis is regulated in the FL could lead to the production of novel therapies involving the safe and reliable transplantation of HSCs to patients with blood and bone marrow complications. This review aims to summarize the current state of knowledge about the regulation of hematopoiesis specifically within the FL.
Primary author: Swain, Anthony
Inoue, Tomoko
Tan, Keai Sinn
Nakanishi, Yoichi
Sugiyama, Daisuke
Document type: info:eu-repo/semantics/article
Number of pages / Extensions: 6
Rights: info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivatives 4.0 International
Appears in Collections:Vol.29, nº 9 (2014)

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