The factors controlling stem cell recirculation. II. ACTH-induced inhibition of migration of hemopoietic stem cells

Autor: Bezin, GI, Khaitov, RM, Moroz, BB, Petrov, RV, Romashko, 99
Zdroj: Blood; July 1975, Vol. 46 Issue: 1 p79-84, 6p
Abstrakt: Injections of ACTH of prolonged action (twice 1.5 units per mouse) given to lethally (800 R) irradiated mice with a hind limb shielded to the middle of the tibia brought about a twofold decrease in the number of spleen colonies. ACTH injections after sublethal whole-body irradiation (600 R) did not affect the number of endogenous spleen colonies. ACTH injection of normal mice brought about a substantial decrease in the CFU content in the circulating blood at the time of increased 11-hydroxycorticosteroid concentrations in the plasma. The results obtained are interpreted as inhibition of CFU migration from a shielded area of bone marrow induced by a high 11-hydroxycorticosteroid content in the plasma that followed ACTH injections which had no mitostatic effect on CFU proliferation.
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