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  • Title: Expression of e-cadherin and beta-catenin in human esophageal squamous cell carcinoma: relationships with prognosis.
    Author: Zhao XJ, Li H, Chen H, Liu YX, Zhang LH, Liu SX, Feng QL.
    Journal: World J Gastroenterol; 2003 Feb; 9(2):225-32. PubMed ID: 12532436.
    Abstract:
    AIM: To elucidate the expression of E-cadherin and beta-catenin correlating with its clinical outcome in patients with esophageal squamous cell carcinoma (ESCC), by analyzing their interrelationship with clinicopathological variables and their effects on progress and prognosis. METHODS: Expression of E-cadherin and beta-catenin was determined by SP immunohistochemical technique in patients with ESCC consecutively, their correlation with clinical characteristics was evaluated and analyzed by multivariate analysis. RESULTS: The rate of expression of E-cadherin decreased to 66.03 % (70/106) in ESCC and the protein level was negative correlated with histologic grade, tumor size, clinical staging, lymph node metastasis and venous invasion. Whereas the expression rate of beta-catenin was reduced to 69.8 % (74/106) and the level of protein expression correlated only with histologic grade. There obviously existed inverse correlation between level of E-cadherin protein and survival, especially in stage I, IIa, IIb (P=0.0033), Patients with low-expressing tumors for beta-catenin and non-expressing tumors for E-cadherin/beta-catenin had lower survival period than those with normal-expressing ones (P=0.0501 and P=0.0080, respectively). Patients with diminished expression of E-cadherin as grade II or III had shorter survival period than those with normally expressing and grade I, no significance existed between grade I and grade II or III with respect to different status of E-cadherin expression. Furthermore, Correlation analysis showed level of E-cadherin correlated with that of beta-catenin (P=0.005). Cox proportional hazards model analysis suggested downregulation of E-cadherin was an important factor indicating poor prognosis. CONCLUSION: As a probable independent prognostic factor, it correlates with overall and disease free survival period, expression of E-cadherin but not beta-catenin may predict prognosis in patients with ESCC.
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