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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2004.1
- 수록면
- 493 - 498 (6page)
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초록· 키워드
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Hydroxyurea is comonly used to treat he-matologic disorders and some type of solid tumors, but the mechanism for its therapeutic efect is not clearly known. In this study, we examined the effect of hydroxyurea on rat he-patoma McA-RH7 cells, specifically, on the role of mitogen-activated protein (MAP) kinase signal transduction pathways and p21Waf1, p27Kip1 treated with hydroxyurea for 7 days, caused the inhibition of cel growth in a dose-dependent manner. But, this growth inhibition was not caused by necrosis or apoptosis but instead was associated with cell senescence-like change as evidenced by senescence associated-β-gal-actosidase staining, and cels arrest at G1 phase of cel cycle. Phosphorylation of MAP kinases, such as ERK, JNK, and p38, was found to be decreased after treatment of cels with hydroxyurea. But, the expresion of p21Waf1 was increased, while p27Kip1 and p53 were not de-tected in hydroxyurea treated rat hepatoma cells. Hydroxyurea treatment induced G1 arest and a senescence-like changes in rat hepatoma McA-RH7777 cels may be the likely results of signal disruption of MAP kinases (ERK, JNK, and p38 MAP kinase) and p21Waf1 over-expression.
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참고문헌 (22)
참고문헌 신청
/ / Inhibition of ribonucleotidediphosphate reductase by hydroxyurea : 1559 ~ 65
/ / Intracellular conversion of deoxyribonucleosidesby Novikoff rat hepatoma cells : 321 ~ 36
/ / Participation of p53 protein in the cellular response toDNA damage : 6304 ~ 11
/ / S-phaseinhibitors induce vimentin expression in human promonocyticU-937 cells : 171 ~ 4
/ / hydroxyurea chemotheraphy in hepatoma-bearing rats total intrave (us hyperalimentation) : 297 ~ 88
/ / Intracellular conversion of deoxyribonucleosidesby Novikoff rat hepatoma cells : 321 ~ 36
/ / Participation of p53 protein in the cellular response toDNA damage : 6304 ~ 11
/ / S-phaseinhibitors induce vimentin expression in human promonocyticU-937 cells : 171 ~ 4
/ / hydroxyurea chemotheraphy in hepatoma-bearing rats total intrave (us hyperalimentation) : 297 ~ 88
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