For example, Sengupta and his colleagues have shown that miR-29c is down-regulated in nasopharyngeal carcinomas [12], while Fabbri and his colleagues discovered that the miR-29 family, including miR-29c, targets DNMT3A and DNMT3B in lung cancer tissues and cells [13]. This evidence concerns the gene DNMT3A and nasopharyngeal carcinoma.