Synthesizing that Protein Kinase C alpha and Beta II (PKCα and PKCβII) have previously been implicated in CELF1 phosphorylation in models of Type 1 Myotonic Dystrophy (DM1) (17, 27), and that PKCα has long been known to impact MCF-10A cell morphology and motility (28), we reasoned that this or related kinases may play a similar role in the context of breast cells. Here, CELF1 is linked to myotonic dystrophy type 1.