Characterization of FAMPAC, a newly identified human pancreatic carcinoma cell line with a hereditary background.

Abstract:

BACKGROUND:A novel pancreatic carcinoma cell line, FAMPAC, was identified from investigation of poorly differentiated pancreatic adenocarcinoma cells found in a patient with a familial predisposition to pancreatic carcinoma. A gene responsible for familial pancreatic carcinoma has not been identified to date. METHODS:The FAMPAC cell line was characterized by its morphology, growth rate, tumorigenicity, and chromosomal analysis. Three known tumor suppressor genes, p16/CDKN2, BRCA2, and p53, all of which are important in the development of pancreatic carcinoma and frequently are involved in a variety of cancer syndromes, were analyzed. RESULTS:FAMPAC cells grew as an adhering monolayer in culture medium supplemented with 10% fetal bovine serum and formed tumors rapidly in nude mice. The doubling time ranged from 24 to 48 hours. Karyotype analysis demonstrated the complexity of chromosomal deletions and rearrangements. The cells were negative for ductal differentiation markers such as cytokeratin 7 and MUC1, indicating poor differentiation. Analysis of FAMPAC cells revealed overexpression of the mutated p53 gene (exon 5, codon 175: CGC --> CAC), the presence of a homozygous deletion in the p16 gene, and the presence of wild-type BRCA2 in the tested hot spots. CONCLUSIONS:To the authors' knowledge, FAMPAC is the first established human pancreatic carcinoma cell line associated with a familial background. FAMPAC is a tumorigenic cell line with a complex molecular pattern of mutations. These findings may be useful in understanding the mechanisms responsible for the development of sporadic or hereditary forms of pancreatic carcinoma.

journal_name

Cancer

journal_title

Cancer

authors

Eisold S,Ryschich E,Linnebacher M,Giese T,Nauheimer D,Wild A,Bartsch DK,Büchler MW,Schmidt J

doi

10.1002/cncr.20193

subject

Has Abstract

pub_date

2004-05-01 00:00:00

pages

1978-86

issue

9

eissn

0008-543X

issn

1097-0142

journal_volume

100

pub_type

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