To investigate whether EndoMT-derived CAFs induced infiltration of myeloid cells into the tumor tissue to promote tumor growth, C57BL/6 mice were irradiated to delete bone marrow and then transplanted with the red fluorescent (i.e., ROSA+) bone marrow cells isolated from B6.Cg-Gt(ROSA)26Sortm4(ACTB-tdTomato-EGFP)Luo/Nar1 mice. The gene discussed is ACTB; the disease is neoplasm.