DNMT3B and invasive breast carcinoma: Our results suggest loss of combinations of miR-29a, miR-29b, miR-148a, miR-148b, miR-26a and miR-26b is associated with aberrant DNA hypermethylation in primary invasive breast cancers, consistent with the idea that these miRs function as negative mediators of DNMT3b-mediated aberrant DNA hypermethylation.