title: Expression and prognostic relevance of p21WAF1 in stage III esophageal squamous cell carcinoma.
abstract: The prognostic effect of p21(WAF1)  expression on esophageal squamous cell carcinoma patients is controversial. Further clarifying the effect of this protein is beneficial for optimizing the patient outcomes. In the current study, we investigated the expression of p21(WAF1)  protein in 189 specimens of stage III ESCC by immunohistochemistry. As shown by the Kaplan-Meier curve, the overall survival rate of the positive-expression group was significantly higher than that of the negative-expression group (P < 0.05). No significant correlation was observed between p21(WAF1)  expression and clinicopathological parameters in terms of gender, age, tumor location, tumor grade, pathological stage, and number of regional lymph node metastases (P > 0.05). We concluded that p21(WAF1)  played an intricate role in the tumorigenesis and development of ESCC. p21(WAF1)  could serve as a positive prognostic predictor for stage III ESCC patients.
authors.affiliation: Department of Thoracic Oncology, Cancer Center, Sun Yat-sen University, Guangzhou, China.
authors.forename: J
authors.initials: J
authors.lastname: Liu
authors.forename: Y
authors.initials: Y
authors.lastname: Hu
authors.forename: W
authors.initials: W
authors.lastname: Hu
authors.forename: X
authors.initials: X
authors.lastname: Xie
authors.forename: A
authors.initials: A
authors.lastname: Ela Bella
authors.forename: J
authors.initials: J
authors.lastname: Fu
authors.forename: D
authors.initials: D
authors.lastname: Rao
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000378:metabolism*; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000473:pathology; D050759:Cyclin-Dependent Kinase Inhibitor p21 / Q000378:metabolism*; D004938:Esophageal Neoplasms / Q000378:metabolism* / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis
chemical_list: D014408:Biomarkers, Tumor; C493956:CDKN1A protein, human; D050759:Cyclin-Dependent Kinase Inhibitor p21