Chromosomal imbalances in Korean intrahepatic cholangiocarcinoma by comparative genomic hybridization

Intrahepatic cholangiocarcinoma (ICC) arises from epithelial cells in the intrahepatic bile duct. Until now, only few reports have been available concerning the genetic changes during the progression of ICC. In this study, we analyzed chromosomal aberrations in 19 frozen ICC samples using comparativ...

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Bibliographic Details
Published in:Cancer genetics and cytogenetics 2005-02, Vol.157 (1), p.37-41
Main Authors: Uhm, Kyung-Ok, Park, Young-Nyun, Lee, Ji-Young, Yoon, Dong-Seop, Park, Sun-Hwa
Format: Article
Language:English
Subjects:
Adult
Aged
Bile Duct Neoplasms - genetics
Bile Ducts, Intrahepatic
Cholangiocarcinoma - genetics
Chromosome Aberrations
Female
Humans
Male
Middle Aged
Nucleic Acid Hybridization - methods
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Summary:Intrahepatic cholangiocarcinoma (ICC) arises from epithelial cells in the intrahepatic bile duct. Until now, only few reports have been available concerning the genetic changes during the progression of ICC. In this study, we analyzed chromosomal aberrations in 19 frozen ICC samples using comparative genomic hybridization. The common chromosomal gains were observed in 8q22∼qter (11 cases, 58%), 5p14∼pter (32%), 2q33∼qter (26%), 7p (26%), 17q21∼q22 (26%), 18q12∼q21 (26%), and 19q13.1 (26%). DNA amplification was identified in nine tumors (47%). Chromosomal loss was found in Y (60%), 1p34∼pter (37%), 4q(32%), 18q21∼qter (32%) 19p (32%), X (32%), 5q11∼q14 (26%), 8p(26%), 9p (26%), and 17p (26%). Chromosomal aberrations identified in this study provide candidate regions involved in the tumorigenesis and progression of ICC.
ISSN:0165-4608
1873-4456
DOI:10.1016/j.cancergencyto.2004.05.007