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Prognostic value of cell proliferation (Ki-67 antigen) and nuclear DNA content in clinically resectable, distal bile duct carcinoma

  • A. M. Rijken
  • , A. Umezawa
  • , T. M. van Gulik
  • , A. Bosma
  • , M. M. Polak
  • , G. J. Offerhaus
  • , H. Obertop
  • , D. J. Gouma

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

BACKGROUND: The aim of this study was to investigate the prognostic value of cell proliferation (Ki-67 antigen) and DNA content in patients resected for distal bile duct carcinoma (DBDC). METHODS: Formalin-fixed tumor specimens of 35 patients with resected DBDC and a long-term clinical follow-up were analyzed. MIB-1 antibody was used for Ki-67 antigen detection to determine the proportion of proliferating cells. DNA content was measured using flow cytometry. RESULTS: A significant correlation was found between a low MIB-1 index ( <20%) and survival (P <.05). Of the 35 tumor specimens, 34 specimens were evaluable by flow cytometry: 22 carcinomas were diploid (65%), and 12 were aneuploid (35%). The median DNA index of aneuploid tumors was 1.36 (range, 1.09 to 1.76). No correlation of DNA-ploidy with survival time was found. CONCLUSION: In contrast to DNA-ploidy pattern, Ki-67 antigen expression showed prognostic significance in resectable DBDC. A Ki-67 positive ratio of > or =20% was associated with decreased survival time
Original languageEnglish
Pages (from-to)699-705
JournalAnnals of surgical oncology
Volume5
Issue number8
DOIs
Publication statusPublished - 1998

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This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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