Volume 67, Issue 6 pp. 898-902
Experimental Cancer

Mutation of p53 gene in hepatocellular carcinoma cell lines with HBX DNA

Myung-Soo Kang

Myung-Soo Kang

Laboratory of Cell Biology, Cancer Research Center and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

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Hong-Joo Lee

Hong-Joo Lee

Laboratory of Cell Biology, Cancer Research Center and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

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Jae-Ho Lee

Jae-Ho Lee

Laboratory of Cell Biology, Cancer Research Center and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

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Ja-Lok Ku

Ja-Lok Ku

Laboratory of Cell Biology, Cancer Research Center and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

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Kathreen P. Lee

Kathreen P. Lee

Laboratory of Cell Biology, Cancer Research Center and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

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Michael J. Kelley

Michael J. Kelley

NCI-Navy Medical Oncology Branch, National Cancer Research, Naval Hospital Bethesda, MD

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Yong-Jin Won

Yong-Jin Won

Laboratory of Cell Biology, Cancer Research Center and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

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Soo-Tae Kim

Soo-Tae Kim

Laboratory of Cell Biology, Cancer Research Center and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

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Jae-Gahb Park

Corresponding Author

Jae-Gahb Park

Laboratory of Cell Biology, Cancer Research Center and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

Laboratory of Cell Biology, Cancer Research Institute, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, Seoul, 110-799 Korea. Fax: (82-2) 742-4727Search for more papers by this author

Abstract

It has been known that the incidence of p53 mutation is very rare in HBX-positive primary human hepatocellular carcinoma (HCC) tissues. The frequency of p53 mutation, however, in established cell lines with integrated HBV DNA and/or HBX has not been well studied. To know p53 mutational frequency, and to investigate whether the presence of HBX DNA sequence correlates with the absence of p53 mutation in the established HCC cell lines, we studied the p53 mutation and the presence of HBX sequence in 12 recently characterized HCC cell lines. As a result, all 12 (100%) lines showed mutation in the p53 gene. Three (25%) cell lines had transversion of codon 215 while no mutation of codon 249 was found. In contrast with previous reports, although HBX DNA was present in 11 cell lines, p53 mutation had occurred, indicating that the presence of HBX viral DNA does not correlate with a lack of p53 mutation in established HCC cell lines. Our results suggest that the frequency of p53 mutation is extremely high even in HBX DNA positive HCC cell lines. © 1996 Wiley-Liss, Inc.

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