PTK7 and chronic myelogenous leukemia, BCR-ABL1 positive: The Q-RT-PCR data validated 3 candidates, namely HNRPDL, PTK7 and UCHL5. Interestingly, all these 3 genes were up-regulated in both nucleated cells and CD34+ cells from CML patients compared to those from healthy donors, which suggested their potential oncogenic activities in CML cells.