Department of Medicine III: Hematology and Oncology, School of Medicine, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany. Flow Cytometry Unit (CyTUM-MIH), Institute of Microbiology, Immunology, and Hygiene, Technical University of Munich, Munich, Germany. Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, Salzburg, Austria. Department for Blood Group Serology and Transfusion Medicine, Paracelsus Medical University, Salzburg, Austria. German Cancer Consortium (DKTK), Heidelberg, Partner Site, Munich, Germany. Experimental and Clinical Cell Therapy Institute, Paracelsus Medical University, Salzburg, Austria. Department of Medicine III: Hematology and Oncology, School of Medicine, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany. robert.oostendorp@tum.de. Department of Medicine III: Hematology and Oncology, School of Medicine, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany. katharina.goetze@tum.de. German Cancer Consortium (DKTK), Heidelberg, Partner Site, Munich, Germany. katharina.goetze@tum.de.