Although the survival time of NrasG12D/G12D; Mx1‐Cre+; Golga7KO mice were significantly prolonged compared to Golga7WT mice, they inevitably developed CMML‐like MPN starting from 20 weeks post pI‐pC, as the Mac‐1+ myeloid population gradually elevated in PB (Figure3A,B). Here, MX1 is linked to myeloproliferative neoplasm.