Results None of the 95 noncancerous tissues exhibited DNMT1 immuno-reactivity,whereas 48(50.5%) of the 95 lung adenocarcinoma cancerous tissueswere DNMT1-positive.

• 结果95例肺腺癌中有48例患者呈癌组织DNMT1阳性表达(50.；5%25)；癌旁正常肺组织中DNMT1阴性表达;