Out of the eight breast-derived cell lines analysed with respect to ALKBH3 promoter methylation, seven were derived from breast tumors (CAMA-1, Bt-474, HCC-38, SKBr-3, MDA-MB-231, MCF-7, MDA-MB-468) and one was derived from a fibrocystic breast lesion (MCF-10A). This evidence concerns the gene ALKBH3 and breast neoplasm.