The PIM proteins are a family of 3 protooncogene serine/tyrosine kinases (PIM1-3) that are upregulated in, and indicative of poor prognosis in leukemia, prostate, mesothelioma and other cancers (Mizuki et al., 2003; Kim et al., 2005; Amson et al., 1989; Cibull et al., 2006; Peltola et al., 2009; Deneen et al., 2003). This evidence concerns the gene PIM1 and leukemia.