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The factors controlling stem cell recirculation. i. Migration of hemopoietic stem cells in adrenalectomized mice

RM Khaitov, RV Petrov, BB Moroz and GI Bezin

The influence of bilateral adrenalectomy on hemopoietic stem cell (CFU) migration in mice has been studied. Formation of endogenous spleen colonies in lethally irradiated, leg-shielded mice was sharply increased by prior adrenalectomy, and this increase was not dependent on the volume of shielded bone marrow. Adrenalectomy was shown to increase endogenous spleen colony formation in sublethally irradiated mice as well. However, it had no affect on formation of spleen colonies in lethally irradiated mice injected with syngeneic bone marrow. The CFU content of murine bone marrow decreased acutely after removal of the adrenals, and this decrease was accompanied by a concomitant increase in the peripheral blood and splenic CFU. Thus, adrenalectomy appeared to have no affect on the splenic plating efficiency or proliferative rate of hemopoietic stem cells, but it did result in increased migration of stem cells from the bone marrow to the blood, and thence to the spleen. It is concluded that the adrenal steroids may be of physiologic importance in the regulation of ehmopoietic stem cell migration.

Volume 46, Issue 1, pp. 73-77, 07/01/1975
Copyright © 1975 by The American Society of Hematology


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W. B. Slayton, A. Georgelas, L. J. Pierce, K. S. Elenitoba-Johnson, S. S. Perry, M. Marx, and G. J. Spangrude
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  Copyright © 1975 by American Society of Hematology         Online ISSN: 1528-0020