The detection of telomerase activity in patients with adenocarcinoma of the pancreas by fine needle aspiration.

Abstract:

:Telomerase activation in differentiated cells is associated with cell immortalization. Detection of telomerase expression in cancer provides a potential biomarker to be evaluated in the diagnosis and prognosis of cancer patients. Analysis of telomerase activity in biopsy specimens may serve as a useful marker for the diagnosis of pancreatic adenocarcinoma. This study was conducted to determine if telomerase could be detected in fine needle aspirates from patients with pancreatic carcinoma. The telomeric repeat amplification protocol (TRAP) assay was used to determine telomerase activity from pancreatic cancer cell lines, paired tumor/normal human pancreatic tissues and specimens obtained at the time of diagnostic fine-needle aspiration (FNA) biopsies. In this report, we demonstrate that: i) telomerase activity is present in pathologically confirmed pancreatic cancer specimens, but absent in matched adjacent areas of normal pancreatic tissues; ii) telomerase activity is present in FNA samples obtained at the time of CT-guided FNA of pancreatic adenocarcinomas; and iii) this activity can be detected in material normally discarded during FNA slide preparation. Activation of telomerase can be identified in FNA specimens obtained at the time of routine cytologic diagnosis. These findings may be useful for further diagnostic or therapeutic investigations of telomerase activity in pancreatic carcinoma.

journal_name

Int J Oncol

authors

Pearson AS,Chiao P,Zhang L,Zhang W,Larry L,Katz RL,Evans DB,Abbruzzese JL

doi

10.3892/ijo.17.2.381

keywords:

subject

Has Abstract

pub_date

2000-08-01 00:00:00

pages

381-5

issue

2

eissn

1019-6439

issn

1791-2423

journal_volume

17

pub_type

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