New York Presbyterian Hospital View Institution's Website 1 article published in JoVE Medicine Screening for Melanoma Modifiers using a Zebrafish Autochthonous Tumor Model Sharanya Iyengar1, Yariv Houvras2,3, Craig J. Ceol1 1Program in Molecular Medicine and Department of Cancer Biology, University of Massachusetts Medical School, 2Departments of Surgery and Medicine, Weill Cornell Medical College, 3Departments of Surgery and Medicine, New York Presbyterian Hospital A rapid way to screen for melanoma modifiers using a zebrafish autochthonous tumor model is presented. It takes advantage of the miniCoopR vector which allows for expression of candidate melanoma genes in melanocytes. A method to obtain melanoma-free survival curves, an invasion assay, a protocol for antibody staining of scale melanocytes and a melanoma transplantation assay are described.