Melanoma-Treating Drug (image) Columbia University Medical Center Caption The melanoma-treating drug, selumetinib (red) is bound to its protein target MEK1 (blue). Credit Dr. Lucky Tran Usage Restrictions Please use image credit. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.