Published in:
01-12-2013 | Original Article
Clathrin heavy chain is a useful immunohistochemical marker for esophageal squamous intraepithelial neoplasia
Authors:
Kazuya Tokita, Masanori Seimiya, Kazuyuki Matsushita, Takeshi Tomonaga, Kiyotaka Onodera, Syoji Ohki, Tohru Tanizawa, Masaya Uesato, Hideaki Shimada, Hisahiro Matsubara, Yukio Nakatani, Fumio Nomura
Published in:
Esophagus
|
Issue 4/2013
Login to get access
Abstract
Background
Recent advances in the endoscopic diagnosis and treatment of esophageal cancer have facilitated the detection and treatment of minute tumors, necessitating the accurate histopathological diagnosis of early esophageal cancer or precancerous lesions. This study evaluated the usefulness of immunohistochemical analysis (IHC) of clathrin heavy chain (CHC) as a marker for early esophageal cancer.
Methods
The immunoreactivity of CHC was analyzed in 409 esophageal specimens using a tissue array. Immunoreactivities of CHC, p53, and Ki67 were then compared in 44 endoscopically resected specimens.
Results
CHC expression was significantly stronger in the cytoplasm of esophageal squamous cell carcinomas compared with non-tumor specimens in the tissue array. CHC expression in endoscopic specimens was significantly stronger in the cytoplasm of high-grade intraepithelial neoplasias and superficial carcinomas than in benign squamous epithelium and low-grade intraepithelial neoplasias. The sensitivity and specificity of CHC for the diagnosis of esophageal lesions were 75 and 96 %, respectively. These accuracies were comparable with those of p53 (43 and 98 %) and Ki67 (68 and 100 %). In addition, the sensitivity was increased by using a combination of markers as follows: 80 %, CHC + p53; 78 %, CHC + Ki67; 90 %, CHC + p53 + Ki67.
Conclusions
CHC detected by IHC may be a useful marker for the pathological diagnosis of esophageal squamous intraepithelial neoplasia.