Movie 10.

Dynamic microtubule polymerizing against a branched actin meshwork in presence of 100nM of Tau. Time-lapse imaging of dynamic microtubules (green) polymerizing against a branched actin network (magenta) in presence of actin bundles (10nM of Arp2/3 complex) and of an actin-microtubule crosslinker (100nM of Tau). White arrows show microtubule + tip piercing the branched actin meshwork. Scale bar, 10 µm.