GDPD3 and chronic myelogenous leukemia, BCR-ABL1 positive: Application of real-time PCR analysis to these cells revealed that the Gdpd3 gene was more highly expressed in LT-stem cells and CD48+ LSK cells from tet-CML mice compared to the same populations from healthy littermate control mice, but that the same was not true for MPP and LK cells (Fig. 1b).