Radiobiological characteristics of cancer stem cells from esophageal cancer cell lines

Figure 4 Proportion changes of CD44⁺CD271⁺ cells in parental cells and stem-like spheres with different doses of radiation. A: Expression of CD44⁺, CD271⁺ and CD44⁺CD271⁺ were detected by flow cytometry; B: The differences in CD44⁺CD271⁺ cell proportion in parent cells and cell spheres under different irradiation doses were significant. In addition, the proportion of KYSE150 and TE1 cell spheres under irradiation doses of 4 and 8 Gy was significantly different from that of 0 Gy, ^aP < 0.05 vs control group.