DNMT1 and neoplasm: This led to the identification of already known regulators and/or gene correlations (e.g., hypermethylation of BRCA1 in OV tumor) and to unveil a set of still unknown and potentially interesting biological relationships (e.g., the correlation between ERCC1 and ERCC2, or between CHEK1 and DNMT1 in OV) for their pharmacological and clinical use.