title: Shigella navigates tight corners.
abstract: In this issue, Fukumatsu and colleagues (2012) find that Shigella preferentially spread from cell-to-cell at unique intercellular junctions. Shigella protrusions invade adjacent cells at junctions where three cells meet, the tricellular junction. The tight junction protein tricellulin marks these sites and is important for Shigella spread.
authors.affiliation: Departments of Pediatrics and Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA. amieva@stanford.edu
authors.forename: Manuel
authors.initials: M
authors.lastname: Amieva