Clinical significance of telomerase activity in the non-cancerous epithelial region of oesophageal squamous cell carcinoma

K. Koyanagi, S. Ozawa, N. Ando, H. Takeuchi, M. Ueda, M. Kitajima

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Background: The aim of this study was to examine telomerase activity in affected and adjacent tissue in patients with oesophageal squamous cell carcinoma (SCC). Methods: Telomerase activity was measured in oesophageal SCC cells, normal oesophageal culture cells, primary cancer tissues and adjacent normal tissues from patients with oesophageal SCC using a polymerase chain reaction-based assay. Results: All oesophageal SCC cells had telomerase activity, whereas normal cultured cells showed no activity. All 57 cancer tissues showed telomerase activity compared with only five (10 per cent) of 50 normal tissues. Cancer cells infiltrating the vessels of mucosal or submucosal tissues in non-cancerous regions were detected in four of five telomerase-positive normal tissues, whereas such infiltration was detected in only three of 45 telomerase-negative normal tissues. Conclusion: In patients with oesophageal SCC, measurement of telomerase activity in normal epithelium is a highly sensitive method of detecting the microinvasion of cancer cells.

Original languageEnglish
Pages (from-to)674-679
Number of pages6
JournalBritish Journal of Surgery
Volume86
Issue number5
DOIs
Publication statusPublished - 1999

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Telomerase
Neoplasms
Primary Cell Culture
Esophageal Squamous Cell Carcinoma
Cultured Cells
Epithelium
Polymerase Chain Reaction

ASJC Scopus subject areas

  • Surgery

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Clinical significance of telomerase activity in the non-cancerous epithelial region of oesophageal squamous cell carcinoma. / Koyanagi, K.; Ozawa, S.; Ando, N.; Takeuchi, H.; Ueda, M.; Kitajima, M.

In: British Journal of Surgery, Vol. 86, No. 5, 1999, p. 674-679.

Research output: Contribution to journalArticle

Koyanagi, K. ; Ozawa, S. ; Ando, N. ; Takeuchi, H. ; Ueda, M. ; Kitajima, M. / Clinical significance of telomerase activity in the non-cancerous epithelial region of oesophageal squamous cell carcinoma. In: British Journal of Surgery. 1999 ; Vol. 86, No. 5. pp. 674-679.
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AU - Ueda, M.

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