The Scientist Staff | Oct 1, 2007 | 1 min read
While the internal mechanisms that guide cell migration have been described for individual cells, Pernille Rørth at the European Molecular Biology Laboratory in Heidelberg, Germany, and colleagues examined signaling activation in Drosophila border cells to uncover how groups of cells migrate collectively. They found that in the later phase of migration, leading cells have more mitogen-activated protein (MAP) kinase activation than trailing cells.1 "What's setting direction