Is protein kinase D-mediated anterograde membrane trafficking required for fibroblast motility?
These results indicate that PKD-mediated anterograde membrane traffic from the TGN to the PM is required for fibroblast locomotion and localized Rac1-dependent leading edge activity. We suggest that polarized secretion transmits cargo that directs localized signaling for persistent leading edge activity necessary for directional migration.
These findings indicate that the murine model in which both the PPA and the ECA are ligated may be useful to clarify the pathologic mechanisms of retinal ischemic diseases and to evaluate neuroprotective drugs that target retinal ischemic injury.