STEFAN LINDER is Professor of Cellular Microbiology at University Medical Center Hamburg-Eppendorf (UKE), Germany. He is a member of the Life Science Committee at the Royal Microscopical Society, and he serves on the editorial boards of European Journal of Cell Biology (EJCB) and Frontiers in Immunology.

CLAIRE M. WELLS is Professor of Cancer Cell Biology at Kings College London, UK. She is a member of the British Society for Cell Biology and a member of the Life Science Committee at the Royal Microscopical Society. She is Editor in Chief of Cell Adhesion and Migration.