Loss of Heterozygosity and Internal Tandem Duplication Mutations of the CBP Gene Are Frequent Events in Human Esophageal Squamous Cell Carcinoma

Abstract
Purpose: Cyclic AMP response element binding protein binding protein (CBP), a nuclear transcriptional coactivator protein, is an important component of the cAMP signal transduction pathway. In this study, we systematically analyzed the pattern and frequency of CBP gene alterations in esophageal squamous cell carcinoma (ESCC) samples from Linzhou (Linxian), China.