WT1 and cancer: Compared with normal human tissues, WT1 is expressed at a rather high level in various malignancies including ovarian (Hylander et al., 2006; Yamamoto et al., 2007; Andersson et al., 2014), breast (Loeb et al., 2001; McGregor et al., 2018), uterine (Coosemans et al., 2011; Guntupalli et al., 2013), lung (Oji et al., 2002; Hayashi et al., 2012), colon (Koesters et al., 2004; Bejrananda et al., 2010) cancers and malignant pleural mesothelioma (Cedres et al., 2014).