Phosphorylation of fascin decreases the risk of poor survival in patients with esophageal squamous cell carcinoma

J Histochem Cytochem. 2010 Nov;58(11):979-88. doi: 10.1369/jhc.2010.955765. Epub 2010 Aug 16.

Abstract

Phosphorylation of fascin at serine 39 (phospho-S39-fascin) could inhibit its actin-binding and actin-bundling activities and decrease filopodia formation. However, the relationship between phospho-S39-fascin expression and clinicopathological parameters in tumors is still unknown. Here, Western blot analysis and IHC applied to tissue microarray technology were performed to examine the expression status of non-phosphorylated fascin (fascin) and phospho-S39-fascin and their impacts on the prognosis of patients with esophageal squamous cell carcinoma (ESCC). Fascin and phospho-S39-fascin expressions were tested by cytoplasmic staining. Among the 254 patients, 90 cases showed high expression of fascin and 87 cases showed high expression of phospho-S39-fascin. Survival analysis showed that high expression of fascin was significantly associated with a poor prognosis of the patients with ESCC (p=0.004). In contrast, high expression of phospho-S39-fascin correlated significantly with an improved outcome of patients (p=0.020). Multivariate analysis showed that both fascin and phospho-S39-fascin were independent prognostic factors. In a combined analysis, the patients with high expression of fascin and low expression of phospho-S39-fascin tumors had a shorter overall survival than those with high expression of both fascin and phospho-S39-fascin tumors (5-year overall survival rate: 28.7% vs 48.3%, p=0.068). Our results suggest that high expression of fascin correlates with poor outcome and that high expression of phospho-S39-fascin decreases the risk of poor prognosis in ESCC. This manuscript contains online supplemental material at http://www.jhc.org. Please visit this article online to view these materials.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Animals
  • Antibody Specificity
  • Carcinoma, Squamous Cell / diagnosis*
  • Carcinoma, Squamous Cell / genetics
  • Carcinoma, Squamous Cell / metabolism*
  • Carrier Proteins / chemistry
  • Carrier Proteins / immunology
  • Carrier Proteins / metabolism*
  • Cell Line, Tumor
  • Esophageal Neoplasms / diagnosis*
  • Esophageal Neoplasms / genetics
  • Esophageal Neoplasms / metabolism*
  • Female
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Male
  • Microfilament Proteins / chemistry
  • Microfilament Proteins / immunology
  • Microfilament Proteins / metabolism*
  • Middle Aged
  • Phosphoproteins / metabolism
  • Phosphorylation
  • Prognosis
  • Risk
  • Serine / metabolism
  • Survival Analysis

Substances

  • Carrier Proteins
  • Microfilament Proteins
  • Phosphoproteins
  • fascin
  • Serine