Fig. 6.
YAP is genetically hyperactivated and overexpressed in ESCC. a A visual summary of the alteration frequencies of major components involved in the Hippo/YAP pathway across the ESCC samples in the TCGA Esophageal Carcinoma dataset. Each row represents a gene, and each column corresponds to a sequenced case (n = 96). Note the frequent deletion and mutation of MST1/2 and LATS1/2 and amplification of YAP and WWTR1. b Representative staining of YAP expression in ESCC tissues, adjacent normal squamous epithelium, and intraepithelial neoplasia (IEN). c Statistical analysis of IHC-determined YAP expression in normal, IEN, and tumor tissues. ***P < 0.001 by Kruskal-Wallis with Dunn's post hoc test. d A proposed model for an unbalanced YAP–SOX9 regulatory circuit in promoting ESCC progression.