METHOD FOR PRODUCING BONE MARROW GROWTH CELL FACTORS

摘要

A process is provided for obtaining one or more bone marrow cell growth factors having granulocyte/macrophage progenitor cell colony stimulating activity, said process comprising: (a) adding to the culture medium of an in vitro, established bone marrow culture a growth factor-stimulating amount of a dithiocarbamate; (b) separating the said dithiocarbamate from the in vitro treated bone marrow culture, adding fresh culture medium to said in vitro treated bone marrow culture, and permitting the concentration of said growth factor or factors to increase in said fresh culture medium; and (c) isolating said growth factor or factors from said fresh culture medium.