ZEB2 and endometrial carcinoma: Likewise, when we assessed the panel of CTC significantly expressed genes in a small series of matched primary endometrial carcinomas and affected lymph nodes (n = 6), the expression of the EMT related gene ZEB2 demonstrated the best performance among a global tendency for an increased expression in lymph node metastasis compared to primary lesions, (p = 0.09; Additional file4).