On the other hand, we found that sfTSLP transcription was up-regulated significantly in two TSLP-negative human endometrial cancer cell lines (HEC1A and RL95-2) after the treatment with AZA, but not TSA or BIX01294 (Figure 3d), suggesting promoter DNA methylation regulated active endogenous gene expression of sfTSLP in human endometrial cancer cell lines. Here, TSLP is linked to endometrial cancer.