title: Focus issue: a cell's sense of direction.
abstract: The process by which cells orient their movement according to external gradients plays important roles in physiological and pathological processes. This Focus Issue of Science Signaling highlights the interplay between molecules, signaling pathways, and mechanisms that enable directional movement.
authors.forename: Wei
authors.initials: W
authors.lastname: Wong
mesh_terms: D000818:Animals; D002465:Cell Movement / Q000502:physiology*; D006801:Humans; D015398:Signal Transduction / Q000502:physiology*