title: Prognostic significance of the expression of MUC1 and collagen type IV in advanced gastric carcinoma.
abstract: BACKGROUND
  Scirrhous gastric carcinoma is characterized by excessive deposition of collagen in the stroma. However, the clinical significance of this fibrosis of the stomach has not been clarified. The aim of this study was to examine the fibrotic mechanism in several histological types of gastric carcinoma, and the combination of MUC1 and collagen type IV as a possible predictor of patient survival.
  
  
  METHODS
  One hundred and two paraffin-embedded specimens of gastric carcinoma were examined by immunohistochemical staining using monoclonal antibodies against collagen type IV and MUC1.
  
  
  RESULTS
  Collagen type IV-positive expression was significantly associated with depth of wall penetration (P = 0.025) and stage (P = 0.023). There was a significant relationship between MUC1-positive expression and interstitial collagen type IV-positive expression (P = 0.035). Survival was shorter for patients with the combination of MUC1-positive expression and interstitial collagen type IV-negative expression than for those with other expression patterns.
  
  
  CONCLUSIONS
  In patients with differentiated-type advanced gastric carcinoma, the combination of MUC1-positive and interstitial collagen type IV-negative expression may be a marker of unfavourable prognosis.
authors: Department of General Surgical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan. hando@med.gunma-u.ac.jp
authors: H
authors: H
authors: Ando
authors: R
authors: R
authors: Aihara
authors: T
authors: T
authors: Ohno
authors: K
authors: K
authors: Ogata
authors: E
authors: E
authors: Mochiki
authors: H
authors: H
authors: Kuwano
mesh_terms: D000230:Adenocarcinoma / Q000378:metabolism / Q000401:mortality* / Q000601:surgery; D014408:Biomarkers, Tumor / Q000378:metabolism*; D024141:Collagen Type IV / Q000378:metabolism*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D018396:Mucin-1 / Q000378:metabolism*; D015999:Multivariate Analysis; D011379:Prognosis; D013274:Stomach Neoplasms / Q000378:metabolism / Q000401:mortality* / Q000601:surgery
chemical_list: D014408:Biomarkers, Tumor; D024141:Collagen Type IV; D018396:Mucin-1