Leukemia Drug Turns Mini-molecules Up, Cancer Genes Down

... New research shows that a form of vitamin A used to treat acute promyelocytic leukemia induces changes in an unusual class of small molecules called microRNAs (miRNAs) in the leukemic cells.The study also shows that three of these miRNAs inhibit the action of two genes important for cancer development, helping to explain how the drug works. [click link for full article] ...