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Suh, Pann-Ghill
BioSignal Network Lab (BSN)
Research Interests
  • Signal transduction, cancer, metabolism, phospholipase C

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간세포암종에서 Phospholipase C-γ1 의 발현과 DNA Ploidy 와의 관계

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Title
간세포암종에서 Phospholipase C-γ1 의 발현과 DNA Ploidy 와의 관계
Other Titles
Correlation of PLC-γ1 Expression and DNA Ploidy Pattern in Hepatocellular Carcinomas
Author
Kim, SungsookCho, SooYeonKim, KyungHeeKim, JungRanLee, YoungHanSuh, Pann-GhillHuh, ManHaPark, YoungHoon
Keywords
Hepatocarcinogenesis, PLC-rl, Signal transduction, DNA ploidy
Issue Date
199401
Publisher
대한암학회
Citation
CANCER RESEARCH AND TREATMENT, v.26, no.6, pp.885 - 892
Abstract
Phospholipase C isozymes (PLCs) play a role in ligand-mediated signal transduction for cellu- lar activity such as proliferation and differentation. However, their biological significance of in carcinogenesis or tumor progression is not fully estabilished, although PLC-rl is known to be related to the cell growth or the oncogene. We examined the relative content of PLC-rl in human hepatocellular carcinoma (HCC) and the adjacent non tumorous liver tissue, by immunoperoxidase staining of paraffin embedded sections. Among 32 cases, 25 demonstrated s significant decrease of PLC-rl content in comparison to the adjacent nontumorous tissue. Seven cases revealed no remarkable change in PLC-rl expression. There was no HCC expressing higher level of PLC-rl. We also performed image cytometric studies to evaluate the relationship between the DNA ploidy pattern and the PLC-yl content. Interestingly, the tumors showing a decreased PLC-rl expression, were mostly diploid and tetraploid (except 3 cases) in contrast to those tumors showing no change in PLC-rl content which were exclusively aneuploid. The results suggest that PLC-rl expression is closely related to DNA ploidy of the tumor, and that there may be two different mechanisms of hepatocarcinogenesis: one is related to PLC-rl associated signal trasduction system, and the other is independent of PLC-rl.
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ISSN
1598-2998
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