Publisher Summary This chapter discusses the macrophage colony-stimulating factor—that
is, CSF. The production of granulocytes and macrophages from immature hemopoietic
progenitor cells in tissue culture is dependent on the presence of a group of specific growth
factors. These factors are termed the CSFs because in semisolid culture media they
stimulate individual hemopoietic progenitor cells to form colonies of granulocytes and
macrophages. They are believed to regulate granulocyte and macrophage production in …