title: Editorial.
authors.affiliation: Institut für Zellbiologie, University of Bremen, Fachbereich 2, 28359, Bremen, Germany. stick@uni-bremen.de.
authors.forename: Reimer
authors.identifier: 0000-0001-5559-5935
authors.initials: R
authors.lastname: Stick
authors.affiliation: Academy of Sciences of the Czech Republic, 142 20, Prague 4, Czech Republic.
authors.forename: Pavel
authors.initials: P
authors.lastname: Dráber