LDHA and endometrioid adenocarcinoma: The population of ALDH1 high cells was more invasive, antiapoptotic, and tumorigenic than the population of ALDH1 low cells in HEC-1 endometrioid adenocarcinoma cell line, in which abundant ALDH high cells were detected by Aldefluor assay as compared to other endometrioid adenocarcinoma cell lines 37.