Gross type-matched study of clinicopathologic features of advanced gastric carcinoma with replication error

Pathol Int. 1999 Dec;49(12):1053-9. doi: 10.1046/j.1440-1827.1999.00982.x.

Abstract

Sporadic gastric carcinomas with replication error (RER) have been described and have distinct clinicopathological features, such as: older age group, predominant antral location, elevated gross type, near-diploidy, expanding pattern (Ming's classification), intestinal type, low desmoplastic response, and less frequent lymph node metastasis. Previous study revealed that replication error-positive (RER+) advanced gastric carcinomas (AGC) had a preponderance of Borrmann type 2. Regardless of RER status, AGC of Borrmann type 2 usually exhibit expanding pattern (Ming's classification), intestinal type, and low desmoplastic reaction. Therefore, to better characterize the clinicopathological features of RER+ gastric carcinomas, gross type-matched analysis would be necessary. We analyzed 53 cases of Borrmann type 2 AGC for RER status using polymerase chain reaction analysis of eight microsatellite loci and compared the clinicopathological features between RER+ and RER-negative (RER-) tumors. Sixteen (30.2%) out of 53 cases were RER+ phenotype which had a significant association with female sex, older age, expanding pattern, small and uniform nuclei, and low DNA index (P < 0.05). However, RER status was not significantly associated with histological differentiation, histological type (Lauren's classification), desmoplastic response, intratumoral lymphoid infiltration, and tumor location. Most of the previously known clinicopathological features of RER+ AGC were related to Borrmann type 2, except for female sex, older age, expanding pattern, and low DNA index.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenocarcinoma, Mucinous / classification
  • Adenocarcinoma, Mucinous / genetics
  • Adenocarcinoma, Mucinous / pathology*
  • Adult
  • Aged
  • Aged, 80 and over
  • Carcinoma, Signet Ring Cell / classification
  • Carcinoma, Signet Ring Cell / genetics
  • Carcinoma, Signet Ring Cell / pathology*
  • Cell Nucleus / pathology
  • DNA Replication* / genetics
  • DNA, Neoplasm / analysis
  • Female
  • Flow Cytometry
  • Humans
  • Male
  • Microsatellite Repeats
  • Middle Aged
  • Ploidies
  • Stomach Neoplasms / classification
  • Stomach Neoplasms / genetics
  • Stomach Neoplasms / pathology*

Substances

  • DNA, Neoplasm