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Biomechanical force in blood development: Extrinsic physical cues drive pro-hematopoietic signaling

Authors
Lee, Hyun JungLi, NanEvans, Siobahn M.Diaz, Miguel F.Wenzel, Pamela L.
Issue Date
Oct-2013
Publisher
ELSEVIER SCI LTD
Keywords
Hematopoietic stem cells; Hemogenic endothelium; Biomechanical force; Shear stress; Mechanotransduction; Cellular microenvironment
Citation
DIFFERENTIATION, v.86, no.3, pp 92 - 103
Pages
12
Journal Title
DIFFERENTIATION
Volume
86
Number
3
Start Page
92
End Page
103
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/64818
DOI
10.1016/j.diff.2013.06.004
ISSN
0301-4681
1432-0436
Abstract
The hematopoietic system is dynamic during development and in adulthood, undergoing countless spatial and temporal transitions during the course of one's life. Microenvironmental cues in the many unique hematopoietic niches differ, characterized by distinct soluble molecules, membrane-bound factors, and biophysical features that meet the changing needs of the blood system. Research from the last decade has revealed the importance of substrate elasticity and biomechanical force in determination of stem cell fate. Our understanding of the role of these factors in hematopoiesis is still relatively poor; however, the developmental origin of blood cells from the endothelium provides a model for comparison. Many endothelial mechanical sensors and second messenger systems may also determine hematopoietic stem cell fate, self renewal, and homing behaviors. Further, the intimate contact of hematopoietic cells with mechanosensitive cell types, including osteoblasts, endothelial cells, mesenchymal stem cells, and pericytes, places them in close proximity to paracrine signaling downstream of mechanical signals. The objective of this review is to present an overview of the sensors and intracellular signaling pathways activated by mechanical cues and highlight the role of mechanotransductive pathways in hematopoiesis. (c) 2013 International Society of Differentiation. Published by Elsevier B.V. All rights reserved.
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