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자료유형
학술저널
저자정보
저널정보
대한암학회 Cancer Research and Treatment Cancer Research and Treatment 제35권 제1호
발행연도
2003.1
수록면
59 - 65 (7page)

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Purpose: Retinoic acid (RA) has been known to inhibit the proliferation, and to induce apoptosis, of various cancer cell lines. We investigated the correlation between the protein levels of the RAR and RXR receptor families, IGFBP-3 and AFP, and the RA sensitivity in hepatoma cell lines. Materials and Methods: The cell growth inhibition was examined by assaying various 1 to 10μM RA treated hepatoma cell lines. Western blot analysis for the RAR and RXR families, AFP and IGFBP-3 were performed after treatment with 10μM RA. Results: The 1 to 10μM RA treatment induced growth inhibition in the SNU368, SNU354, SNU398 and HepG2 cells. The cell growth of SNU449 and Hep3B were not suppressed by 1μM, but were slightly suppressed by 10 μM RA. An increased expression of IGFBP-3 in HepG2, SNU354, SNU398 and SNU368 cells, and a decreased expression of α-fetoprotein (AFP), was observed from the western blot analysis in all hepatoma cells tested, whereas no confirmed tendency of RAR expressions was seen. Conclusion: Our result showed that the growth inhibition of RA differed according to the sensitivity of the type of cells to RA. We supposed that RA-induced cell growth inhibition may be related to the expressions of IGFBP-3 and AFP, but no exact correlation exists between the growth inhibition and receptor expression status in hepatoma cell lines. (Cancer Rese Treat. 2003;35:59-65)

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