Metastasis is the one of the biggest challenges in cancer therapy. Here we share part of a latest article which discusses the nature of the tumor cells that give rise to metastases by Kevin J. Cheung and Andrew J. Ewald. The origin of this article is Science 08 Apr 2016: Vol. 352, Issue 6282, pp. 167-169 (DOI: 10.1126/science.aaf6546) where you can get the full article. Also Creative Biomart provides molecular tools…