RT Journal Article SR Electronic T1 Focus Issue: Moving in the Right Direction JF Science Signaling JO Sci. Signal. FD American Association for the Advancement of Science SP eg4 OP eg4 DO 10.1126/scisignal.2002100 VO 4 IS 170 A1 Wong, Wei YR 2011 UL http://stke.sciencemag.org/content/4/170/eg4.abstract AB Cells interpret environmental cues to extend processes in the appropriate direction, descend upon sources of inflammation or necrosis, or determine the best path to the correct position in a developing organism. This Focus Issue of Science Signaling highlights the signaling pathways and mechanisms that enable cells to sense external signals and direct their movement accordingly.