Fraunhofer Institute for Cell Therapy and Immunology IZIThis area includes the development of methods for the stimulation or suppression of the immune system. One key topic is improving the smooth acceptance of transplants by inducing specific tolerance. Fraunhofer IZI develops techniques to monitor immunoreactivity and to monitor unwanted responses such as GVHD (graft versus host disease). It also develops vaccines on an innovative technology platform using plasmid DNA which are particularly safe, robust and inexpensive.