title: Refilins: A link between perinuclear actin bundle dynamics and mechanosensing signaling.
abstract: Actin cytoskeleton dynamics lie at the heart of cell mechanosensing signaling. In fibroblast cells, two perinuclear acto-myosin structures, the actin cap and the transmembrane actin-associated nuclear (TAN) line, are components of a physical pathway transducing extracellular physical signals to changes in nuclear shape and movements. We recently demonstrated the existence of a previously uncharacterized third apical perinuclear actin organization in epithelial cells that forms during epithelial-mesenchymal transition (EMT) mediated by TGFβ (TGFβ). A common regulatory mechanism for these different perinuclear actin architectures has emerged with the identification of a novel family of actin bundling proteins, the Refilins. Here we provide updates on some characteristics of Refilin proteins, and we discuss potential function of the Refilins in cell mechanosensing signaling.
authors: Olivia
authors: O
authors: Gay
authors: Benoît
authors: B
authors: Gilquin
authors: Amandine
authors: A
authors: Pitaval
authors: Jacques
authors: J
authors: Baudier