1. Walter Brendel Centre for Experimental Medicine, Ludwig-Maximilians-Universität München , Munich 81377 , Germany
2. Center for Transplantation Sciences, Massachusetts General Hospital/Harvard Medical School , Boston, MA 02129 , USA
3. Division of Cardiac Surgery, Department of Surgery, Massachusetts General Hospital/Harvard Medical School , Boston, MA 02114 , USA
4. Department of Anaesthesiology, University Hospital, Ludwig-Maximilians-Universität München , Munich 81377 , Germany
5. Division of Medical Biotechnology, Paul-Ehrlich-Institute , Langen 63225 , Germany
6. Gene Centre and Centre for Innovative Medical Models (CiMM), Ludwig-Maximilians-Universität München , Munich 81377 , Germany