Ith Erk2 and PLA2 phosphorylation (Fig. 5A). Indeed, vimentin has previously been shown to interact with PLA2 (52); therefore, it is reasonable to believe that they could be involved in similar cellular signaling pathways. Furthermore, previous studies indicate that vimentin filaments are regulated by phosphorylation (53). To test whether intermediate filaments and microtubules have a function in