Wen-Bin Yagn1, Feng Cai, Chuan-Tao Cheng, Gang Cao, Zhao-Yin Qin. 1. Department of General Surgery, the Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, China. yangwb66@yahoo.com.cn
Abstract
OBJECTIVE: To investigate the expressions of prostate stem cell antigen (PSCA) and Claudin-4 in human pancreatic carcinoma and to discuss its role in the ontogenesis of pancreatic cancer. METHODS: Pancreatic carcinoma tissue microarray was constructed, containing 100 cores of 10 normal adult pancreas tissues, 12 chronic pancreatitis tissues, and 78 pancreatic carcinomas. The expressions of PSCA and Claudin-4 were detected using immunohistochemical method and the relationship between PSCA and Claudin-4 and the pancreatic carcinoma was analyzed. RESULTS: The positive expression rates of PSCA and Claudin-4 protein in pancreatic carcinoma were 79. % and 88. % respectively. PSCA and Claudin-4 staining were more intense in malignant cells than in chronic pancreatic tissues and normal adult pancreas tissues. No evidence was found for an association between expressions of PSCA and Claudin-4 and other variables, including gender, age at surgery, and tumor grade. CONCLUSIONS: The expressions of PSCA and Claudin-4 are related to the pancreatic carcinomas. PSCA and Claudin-4 play a role in the development of pancreatic cancer, but PSCA and Claudin-4 are not correlated with the clinical pathology of tumor.
OBJECTIVE: To investigate the expressions of prostate stem cell antigen (PSCA) and Claudin-4 in humanpancreatic carcinoma and to discuss its role in the ontogenesis of pancreatic cancer. METHODS:Pancreatic carcinoma tissue microarray was constructed, containing 100 cores of 10 normal adult pancreas tissues, 12 chronic pancreatitis tissues, and 78 pancreatic carcinomas. The expressions of PSCA and Claudin-4 were detected using immunohistochemical method and the relationship between PSCA and Claudin-4 and the pancreatic carcinoma was analyzed. RESULTS: The positive expression rates of PSCA and Claudin-4 protein in pancreatic carcinoma were 79. % and 88. % respectively. PSCA and Claudin-4 staining were more intense in malignant cells than in chronic pancreatic tissues and normal adult pancreas tissues. No evidence was found for an association between expressions of PSCA and Claudin-4 and other variables, including gender, age at surgery, and tumor grade. CONCLUSIONS: The expressions of PSCA and Claudin-4 are related to the pancreatic carcinomas. PSCA and Claudin-4 play a role in the development of pancreatic cancer, but PSCA and Claudin-4 are not correlated with the clinical pathology of tumor.
Authors: María Laura Gutiérrez; Luís Muñoz-Bellvis; María del Mar Abad; Oscar Bengoechea; María González-González; Alberto Orfao; José María Sayagués Journal: PLoS One Date: 2011-07-21 Impact factor: 3.240