ABSTRACT
OBJECTIVE@#To investigate the expression of Dickkopf-1 and GATA-6 in laryngeal carcinoma and to discuss their relevance and the roles in carcinogenesis and development of laryngeal carcinoma.@*METHOD@#Immunohistochemical technique was used to detect the expression of Dickkopf-1 and GATA-6 protein in 48 tissues of larynge al carcinoma, 48 para-carcinoma tissues and 20 normal laryngeal mucosal tissues.@*RESULT@#(1) The expression of Dick kopf-1 protein in laryngeal cancer is significantly lower than in para-carcinoma tissues and normal laryngeal mucosa tissues (P < 0.05). (2) The expression of GATA-6 protein in laryngeal cancer is significantly higher than in para-carcinoma tissues and normal laryngeal mucosa tissues (P < 0.05). (3) The expression of Dickkopf-1 and GATA-6 protein in laryngeal cancer is correlated with lymph node metastasis, clinical stage, histological grade (P < 0.05). (4) The expression of Dickkopf-1 and GATA-6 are negatively correlated in laryngeal cancer.@*CONCLUSION@#The expression of Dickkopf-1 and GATA-6 may contribute to the carcinogenesis and development of laryngeal carcinoma.