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Cited by 1,383

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Differentiation and proliferation of hematopoietic stem cells

Ogawa, M·1993·Blood

Abstract

Available evidence indicates that qualitative changes in hematopoietic stem cells and progenitors, such as the decision of stem cells to self- renew or differentiate, or selection of lineage potentials by the multipotential progenitors during differentiation (commitment), are intrinsic properties of the progenitors and are stochastic in nature. In-contrast, proliferative kinetics of the progenitors, namely survival and expansion of the progenitors, appear to be controlled by a number of interacting cytokines. While proliferation and maturation of committed progenitors is controlled by late-acting lineage-specific factors such as Ep, M-CSF, G-CSF, and IL-5, progenitors at earlier stages of development are controlled by a group of several overlapping cytokines. IL-3, GM-CSF, and IL-4 regulate proliferation of multipotential progenitors only after they exit from G0 and begin active cell proliferation. Triggering of cycling by dormant primitive progenitors and maintenance of B-cell potential of the primitive progenitors appears to require interactions of early acting cytokines including IL-6, G-CSF, IL-11, IL-12, LIF, and SF. Currently, this simple model fits our understanding of the interactions of growth factors with hematopoietic progenitors. Naturally the model risks oversimplification of a very complex process. However, because the model is testable, it will hopefully challenge investigators to design new experiments to examine its validity.

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Crossref · 10.1182/blood.v81.11.2844.2844

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Metadata

Authors
Ogawa, M.
Venue
Blood
Published
1993-06-01
Volume
81
Issue
11
Pages
2844-2853
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W1836124358
Cited by
1,383
References
0
FWCI
46.19
Type
journal article
Language
en
Open access
closed

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