In order to assess the impact of sphingosine kinase-1 (SK1) expression on melanoma growth, stable SK1 knockdown cells were generated by shRNA, using Yumm 1.7 cells derived from spontaneous murine melanoma driven by Braf activation as well as Pten and Cdkn2a inactivation. Two cell lines silenced for SK1 (shSK1(1) and shSK1(2)) were obtained.