Jasper, H. (2006). Migration in action: profiling border cells.  Dev. Cell 10(4): 414--415.

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Acquiring the ability to migrate is essential for cells taking part in many developmental and disease processes. Two studies in this issue of Developmental Cell use gene expression profiling of purified border cells from the Drosophila ovary to characterize the molecular changes required in cells to initiate migration in vivo. Their results offer interesting new insights into a moving cell's physiology.