Loss of Inverted Formin-2 impairs intracellular trafficking and trophoblast invasion, resulting in maternal hypertension and intrauterine growth restriction, which represents a novel model of impaired placental invasion that encompasses critical aspects of the great obstetrical syndromes.
Although intermediate filaments are not widely known to contribute to the morphogenesis of cellular protusions, keratin filaments and cytolinkers are critical for the development of microridge protrusions in zebrafish skin.
By moving from correlations to causality in cancer signal transduction using optogenetics, the sufficiency of RalB activation to trigger invasion and the underlying molecular mechanisms were established.
A new and general mechanism describes the organization of membrane proteins and their cytoplasmic ligands into micrometer-scale clusters, based on polymerization and concomitant phase separation of multivalent proteins.
Single-molecule TIRF microscopy, biochemical assays and mathematical modeling demonstrate how actin-branch nucleation by the Arp2/3 complex is coordinately regulated by two biochemically distinct activators.