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Related Experiment Video

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Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors

Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors

Published on: July 8, 2012

Circadian rhythms influence hematopoietic stem cells.

Simón Méndez-Ferrer¹, Andrew Chow, Miriam Merad

¹Department of Medicine, USA bDepartment of Gene and Cell Medicine, USA.

Current Opinion in Hematology

|May 7, 2009

Summary

This summary is machine-generated.

Hematopoiesis and hematopoietic stem cell (HSC) migration are influenced by daily biological rhythms. The sympathetic nervous system relays central circadian signals to the bone marrow, impacting HSC behavior and potentially therapeutic outcomes.

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Area of Science:

Hematology
Chronobiology
Neuroscience

Background:

Hematopoiesis, the formation of blood cellular components, is regulated by the bone marrow microenvironment, circulating factors, and autonomic nervous system inputs.
Physiological processes exhibit daily variations, with growing evidence linking biological rhythms to hematopoietic stem cell (HSC) traffic, proliferation, and differentiation.

Purpose of the Study:

To review the impact of circadian rhythms on hematopoiesis and HSC behavior.
To explore the role of the sympathetic nervous system in mediating these circadian effects within the bone marrow.

Main Methods:

Review of recent scientific literature on hematopoiesis, circadian rhythms, and the nervous system.
Analysis of studies investigating the sympathetic nervous system's influence on HSCs and the bone marrow microenvironment.

Main Results:

The sympathetic nervous system directly and indirectly regulates HSC behavior via stromal cells.
Circadian information from the suprachiasmatic nucleus is transmitted by the sympathetic nervous system to the bone marrow, influencing HSC migration and hematopoietic oscillations.

Conclusions:

HSC traffic and hematopoiesis are under circadian control, similar to other physiological processes.
Optimizing the timing of stem cell harvest or infusion could enhance therapeutic efficacy and patient outcomes.