Protein kinase CK2 (known as CSNK2) is a highly conserved serine/threonine kinase that regulates cell proliferation, cell cycle progression, invasiveness, and tumorigenesis.8 CSNK2α1 (CSNK2A1 and CK2α) plays a crucial role in cancer progression through MYC and Wnt/β-catenin pathways.9 Furthermore, CSNK2A1 can also induce phosphorylation of various molecules.10 Here, MARK2 is linked to cancer.