Abstract
DJ-1 has gained extensive attention after being identified in 2003 as a protein implicated in the pathogenesis of early-onset Parkinson's disease. Since then, efforts have revealed versatile DJ-1 functions in reactive oxygen species (ROS) control, transcriptional regulation, chaperone function, fertility, and cell transformation. Herein, we report a novel function of DJ-1 in actin cytoskeletal rearrangements. DJ-1 was identified as a new binding partner of Mena, a protein of the Enah/VASP family, and it promoted cancer cell migration by Mena-dependent actin polymerization and filopodia formation. These results suggest a novel molecular mechanism for DJ-1-dependent cancer cell invasion and metastasis.
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