Fig. 1

Immunohistochimecal staining of TWIST1 in colorectal cancer (CRC) tissues, adjacent normal tissues, and normal testis controls. Nuclear TWIST1 expression in tumor cells: low expression a-a1 and high expression b-b1. Cytoplasmic TWIST1 expression in tumor cells: low expression c-c1 and high expression d-d1. Adjacent normal tissues e-e1. Normal testis tissues as controls: positive f and negative g