PTENP1 and cancer: Methylation of the 5’-terminal regions of thePTEN and PTENP1 sequences was studied usingmethyl-sensitive PCR of genomic DNA isolated from 57 cancer, 43 endometrialhyperplasia, and normal tissue samples of 24 females aged 17–34 years and19 females aged 45–65 years, as well as 20 peripheral venous bloodsamples of EC patients.