Figure 7. Characteristics of ALDH^high cells from primary cervical cancers.

A, The ALDH enzyme activity of primary cervical cancer cells was analyzed by flow cytometry. B, Representative photos of tumorspheres formed by ALDH^high and ALDH^low cells sorted from primary cervical cancer are shown. C, The number of tumorspheres formed by ALDH^high and ALDH^low cells isolated from the primary cervical cancer was counted from 3 consecutive passages. ^***, p<0.001. Data represent mean ± SD of triplicate experiments.