Comment on

• A temporarily distinct subpopulation of slow-cycling melanoma cells is required for continuous tumor growth.

  Roesch A, Fukunaga-Kalabis M, Schmidt EC, Zabierowski SE, Brafford PA, Vultur A, Basu D, Gimotty P, Vogt T, Herlyn M. Roesch A, et al. Cell. 2010 May 14;141(4):583-94. doi: 10.1016/j.cell.2010.04.020. Cell. 2010. PMID: 20478252 Free PMC article.