Proceedings of the Annual Leukocyte Culture Conference

acid activity added addition amount animals antibody antigen appear assay Bethesda blast blood cell cultures cells changes compared concentration containing counts cytes cytoplasm cytotoxic demonstrated Department described determined DISCUSSION DNA synthesis donors dose effect evidence experiments factor Figure fraction function human immune immunological incorporation increased incubated indicate induced inhibition initial injection interaction irradiated labeled less leucocytes levels lymph lymph node lymphocyte cultures lymphoid macrophages marrow Maryland material mean measured Medicine medium method minutes mitogen mixed normal observed obtained occurs patients population possible prepared present produced protein purified question rats reaction removed reported response seen sensitized separated serum showed shown similar small lymphocytes specific spleen stage stimulation studies suggest suspensions Table thymidine thymus tion tissue transformation treated tubes tumor University uptake vitro washed York