Abstract: | The number of colonies was counted in the spleen of irradiated mice after injection of a culture of mouse bone marrow cells. The colony-forming units were found to persist in the culture only for a short time. The use of a previously grown bed of fibroblasts of bone-marrow origin did not affect the preservation of the colony-forming units or the dynamics of the change in their number.Laboratory of Histogenesis, Institute of Developmental Biology, Academy of Sciences of the USSR, Moscow. (Presented by Academician of the Academy of Medical Sciences of the USSR A.P. Avtsyn.) Translated from Byulleten' Éksperimental'noi Biologii i Meditsiny, Vol. 81, No. 6, pp. 718–719, June, 1976. |