Since RNA samples from tissues of the patients analyzed were not available, we analyzed cDNA from pancreatic (Capan-2, AsPC-1) and gastric (AGS) cancer cell lines fully methylated for PCDH10, as well from a breast cancer cell line (MB-231) unmethylated for PCDH10, to assess whether methylation status of PCDH10 CpG dinucleotides was associated with effects on the expression of the corresponding transcript. The gene discussed is PCDH10; the disease is breast cancer.