Prognostic value of p27(Kip1) and CyclinD1 expression in esophageal cancer.
It has recently been reported that the reduced expression of p27(Kip1) is a negative prognostic marker in several carcinomas. In this study, we examined the expression of p27(Kip1) in esophageal squamous cell carcinomas in order to understand its prognostic role. We also examined the expression of cyclinD1, which is believed to be correlated with the prognosis. Of the 128 cases, 64 cases (50.0%) showed low grade p27(Kip1) immunostaining and 64 cases (50.0%) high grade immunostaining; there was no significant difference in survival (p = 0.0915) between the two groups. On the other hand, 51 of the 156 cases (32.7%) were classified as the high cyclinD1 group, and 105 of the 156 cases (67.3%) as the low group, thus representing prognostic significance with regard to survival (p = 0.0161). Multivariate analysis indicated that gender, lymph node metastasis and positive cyclinD1 were independent prognostic factors. Our results revealed that cyclinD1 was a significant prognostic predictor of esophageal squamous cell carcinomas, whereas p27(Kip1) was not a significant prognostic factor.
Itami
A
A
Department of Surgery and Surgical Basic Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Shimada
Y
Y
Watanabe
G
G
Imamura
M
M
D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D018797:Cell Cycle Proteins; D019938:Cyclin D1 / Q000378:metabolism*; D050760:Cyclin-Dependent Kinase Inhibitor p27; D018844:Cyclin-Dependent Kinases / Q000037:antagonists & inhibitors*; D004938:Esophageal Neoplasms / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008869:Microtubule-Associated Proteins / Q000378:metabolism*; D008875:Middle Aged; D015999:Multivariate Analysis; D011237:Predictive Value of Tests; D011379:Prognosis; D016016:Proportional Hazards Models; D012307:Risk Factors; D016019:Survival Analysis; D025521:Tumor Suppressor Proteins
D018797:Cell Cycle Proteins; D008869:Microtubule-Associated Proteins; D025521:Tumor Suppressor Proteins; D019938:Cyclin D1; D050760:Cyclin-Dependent Kinase Inhibitor p27; D018844:Cyclin-Dependent Kinases