TY - JOUR
T1 - Circadian rhythms influence hematopoietic stem cells
AU - Méndez-Ferrer, Simón
AU - Chow, Andrew
AU - Merad, Miriam
AU - Frenette, Paul S.
PY - 2009/7
Y1 - 2009/7
N2 - PURPOSE OF REVIEW: Hematopoiesis is tightly regulated in the bone marrow through the microenvironment, soluble factors from the circulation, and neural inputs from the autonomic nervous system. Most physiological processes are not uniform but rather vary according to the time of day. There is increasing evidence showing the impact of biological rhythms on the traffic of hematopoietic stem cells (HSCs) and their proliferation and differentiation capacities. RECENT FINDINGS: Recent evidence supports the role of the sympathetic nervous system in the regulation of HSC behavior, both directly and through supporting stromal cells. In addition, the sympathetic nervous system transduces circadian information from the central pacemaker in the brain, the suprachiasmatic nucleus, to the bone marrow microenvironment, directing circadian oscillations in hematopoiesis and HSC migration. SUMMARY: HSC traffic and hematopoiesis do not escape the circadian regulation that controls most physiological processes. Clinically, the timing of stem cell harvest or infusion may impact the yield or engraftment, respectively, and may result in better therapeutic outcomes.
AB - PURPOSE OF REVIEW: Hematopoiesis is tightly regulated in the bone marrow through the microenvironment, soluble factors from the circulation, and neural inputs from the autonomic nervous system. Most physiological processes are not uniform but rather vary according to the time of day. There is increasing evidence showing the impact of biological rhythms on the traffic of hematopoietic stem cells (HSCs) and their proliferation and differentiation capacities. RECENT FINDINGS: Recent evidence supports the role of the sympathetic nervous system in the regulation of HSC behavior, both directly and through supporting stromal cells. In addition, the sympathetic nervous system transduces circadian information from the central pacemaker in the brain, the suprachiasmatic nucleus, to the bone marrow microenvironment, directing circadian oscillations in hematopoiesis and HSC migration. SUMMARY: HSC traffic and hematopoiesis do not escape the circadian regulation that controls most physiological processes. Clinically, the timing of stem cell harvest or infusion may impact the yield or engraftment, respectively, and may result in better therapeutic outcomes.
KW - Chronotherapy
KW - Circadian
KW - Clock
KW - Hematopoiesis
KW - Stem cell
KW - Traffic
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U2 - 10.1097/MOH.0b013e32832bd0f5
DO - 10.1097/MOH.0b013e32832bd0f5
M3 - Review article
C2 - 19417648
AN - SCOPUS:67749143903
SN - 1065-6251
VL - 16
SP - 235
EP - 242
JO - Current Opinion in Hematology
JF - Current Opinion in Hematology
IS - 4
ER -