STK3 and cancer: Furthermore, our research has shown underexpression of genes associated with tumor formation and cancer cell migration, including AKT Serine/Threonine Kinase 3 (AKT3), Serine/Threonine Kinase (ATM) and Pseudopodium Enriched Atypical Kinase 1 (PEAK1) gene (Bristow et al., 2013; Weber and Ryan, 2015; Grottke et al., 2016).