Document Detail

Possible role of telomerase activation in the multistep tumor progression of periampullary lesions in patients with familial adenomatous polyposis.
MedLine Citation:
PMID:  11316180     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: The role of telomerase in periampullary tumor progression in patients with familial adenomatous polyposis (FAP) was investigated. METHODS: Relative telomerase activity was measured using a telomerease amplification protocol in periampullary biopsy specimens of normal mucosa and adenoma obtained from patients with FAP, and was compared with that of periampullary normal mucosa and cancer specimens from patients without FAP. RESULTS: None of normal mucosa from the non-FAP patients showed a telomerase ladder. Telomerase was positively detected in three of seven normal mucosa (42.9%) and in five of seven adenoma from FAP patients (62.5%). In papillary cancer from the non-FAP patients, seven of nine tissue specimens (77.8%) showed positive activity. When semiquantitatively analyzed, the relative telomerase activity increased in accordance with the progression of the diseases. CONCLUSIONS: Telomerase is activated even in normal mucosa of FAP patients, and the intensities of telomerase may reflect the malignant potential of periampullary neoplasms.
I Mizumoto; Y Ogawa; H Niiyama; E Nagai; I Sato; T Urashima; T Matsumoto; M Iida; I Tanaka
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of gastroenterology     Volume:  96     ISSN:  0002-9270     ISO Abbreviation:  Am. J. Gastroenterol.     Publication Date:  2001 Apr 
Date Detail:
Created Date:  2001-04-23     Completed Date:  2001-06-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0421030     Medline TA:  Am J Gastroenterol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1261-5     Citation Subset:  IM    
Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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MeSH Terms
Adenomatous Polyposis Coli / enzymology*,  pathology*
Aged, 80 and over
Ampulla of Vater*
Common Bile Duct Neoplasms / enzymology*,  pathology*
Disease Progression
Middle Aged
Telomerase / metabolism*
Reg. No./Substance:

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