Abstract
THE development of a method for colony formation in vitro in semi-solid medium by normal macrophages and granulocytes1–3, has been a useful aid in elucidating the control of growth and differentiation of these two types of normal white blood cells and the changes in this control that occur in leukaemia and other diseases4–6. The formation of these two types of colonies requires the addition of an inducing protein, which we call MGI5, that is found in the appropriate serum or condition medium. This inducer does not induce the formation of lymphocyte colonies and it would obviously be of value to obtain colony formation in vitro by normal bone marrow-derived (B) and thymus-derived (T) lymphocytes.
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FIBACH, E., GERASSI, E. & SACHS, L. Induction of colony formation in vitro by human lymphocytes. Nature 259, 127–129 (1976). https://doi.org/10.1038/259127a0
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DOI: https://doi.org/10.1038/259127a0
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