[Radiosensitivity of lymphocyte stimulation].

Experiments on radiosensitivity of lymphocyte stimulation in vitro and in vivo are described. Mainly the effects on DNA-synthesis and mitotic activity were measured. The effects of delay and inhibition are not specific for stimulated lymphocyte populations, they are common radiobiological characteristics of stimulated proliferation in contrast to spontaneous proliferation. Cells under stimulated proliferation are more radioresistant than the same cells without stimulation or other cells under spontaneous proliferation. In these basic and additional experiments lymphocyte stimulation proved to be a good radiobiological model system.