“…Although many genes demonstrate tumor-specific methylation (Esteller, 2002;Ongenaert et al, 2008), there is no single methylation marker that would provide satisfactory clinical performance (Tsou et al, 2007;Wentzensen et al, 2009). In the case of CDH13, instances of both hypermethylation and loss of function have been documented in breast (Riener et al, 2008) and lung cancers (Sato et al, 1998a,b;Toyooka et al, 2001a), in pituitary adenomas , diffuse large B cell lymphoma (Ogama et al, 2004), nasopharyngeal carcinoma (Sun et al, 2007), and cutaneous squamous cell carcinomas (Takeuchi et al, 2002b). CDH13 has been High level of expression in a separate study (Buechner et al, 2009).…”