Gastric cancer with p53 overexpression has high potential for metastasising to lymph nodes

Y. Kakeji, D. Korenaga, S. Tsujitani, H. Baba, H. Anai, Y. Maehara, K. Sugimachi

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138 Citations (Scopus)

Abstract

Overexpression of the tumour suppressor gene p53 was investigated immunohistochemically in 96 primary gastric carcinomas and 26 corresponding metastatic perigastric lymph nodes. Abnormalities in p53 expression were found in 52 (54%) of the 96 primary carcinomas. Tumours stained positively for p53 frequently metastasised to lymph nodes (the metastatic rate: 85%) compared to findings in those with negative p53 staining (64%, P < 0.05). Ninety-two percent (24/26) of the malignant cells in the lymph nodes stained positively for p53. When the DNA ploidy pattern of the tumour was determined by flow cytometry, the aneuploid tumours in p53 positive and negative groups accounted for 69% and 45%, respectively (P < 0.05). Proliferative activity of the tumour, as measured by Ki-67 labelling, was significantly higher (30.6 ± 12.0%) in the p53 positive group than that (25.1 ± 10.7%) in the p53 negative group (P < 0.05). Thus, gastric cancer with a mutant p53 has high proliferative activity and metastasis to lymph nodes will probably occur.

Original languageEnglish
Pages (from-to)589-593
Number of pages5
JournalBritish journal of cancer
Volume67
Issue number3
DOIs
Publication statusPublished - Mar 1993

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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