For mice receiving a treated or untreated graft (1 × 107 BMCs + 3 × 107 splenocytes) without co-transplantation of 32D-FLT3ITD AML cells, human CD135+ events were not detectable neither in BM and liver nor in spleen preparations (Figures 4A,B and Table S3). Here, FLT3 is linked to acute myeloid leukemia.