DEK and autoimmune disease: DEK is overexpressed in a majority of solid tumors (Sanchez-Carbayo et al., 2003; Grasemann et al., 2005; Wu et al., 2008; Khodadoust et al., 2009; Liu et al., 2012; Privette Vinnedge et al., 2015), and is also known to be an autoantigen in autoimmune disorders such as juvenile idiopathic arthritis (Sierakowska et al., 1993; Dong et al., 2000; Mor-Vaknin et al., 2011).