A comprehensive karyotypic analysis on Korean hepatocellular carcinoma cell lines by cross-species color banding and comparative genomic hybridization.
Chromosomal aberrations were investigated in hepatitis B virus integrated into the hepatocellular carcinoma (HCC) cell lines SNU-368, SNU-449, SNU-398, SNU-182, and SNU-475 using Giemsa-banding, cross species color banding, and comparative genomic hybridization (CGH). The origins of the marker chromosomes were confirmed by fluorescence in situ hybridization with constructed chromosome painting probes. Each cell line had unique modal karyotypic characteristics and showed variable numbers of numerical and structural clonal cytogenetic aberrations. The gains were commonly detected on chromosome 1, and chromosome regions 6p, 7q, 8q, 10p, 17q, and 20; the losses were often found on 4q21 approximately qter, 13, 18q21 approximately qter, and Y. In particular, the breakpoints on 1p36, 1p13 approximately q21, 2p13 approximately q11, 6q10 approximately q11, 7q11, 7q22, 14q10, 16q10 approximately q13, 17q21, 18q21, and 19p11 approximately q11 were involved frequently at the multiple rearranged lesions. CGH analysis further confirmed the cytogenetic data, and the nonrandom rearrangements data suggested the candidate regions for the genes to be isolated which were related to HCC.
Hwang
Hye-Jin
HJ
Institute of Human Genetics, Department of Anatomy, Brain Korea 21 Biomedical Sciences, Korea University College of Medicine, Seoul, South Korea.
Kim
Gi-Jin
GJ
Lee
Gi-Bong
GB
Oh
Jung-Tak
JT
Chun
Yong-Hyuck
YH
Park
Sun-Hwa
SH
D006528:Carcinoma, Hepatocellular / Q000235:genetics*; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D003116:Color; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D007621:Karyotyping; D008113:Liver Neoplasms / Q000235:genetics*; D009693:Nucleic Acid Hybridization; D014407:Tumor Cells, Cultured