인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 113 - 122 (10page)
이용수
초록· 키워드
Purpose: The main aim of this study was to determine the effects of quercetin (3,5,7,3',4'-tetrahydroxyflavone) and rutin (quercetin-3-O-rutinoside) on the induction of cell growth and apoptosis in human oral cancer cells.
Materials and Methods: The effects of quercetin and rutin on cell growth and apoptosis induction in human oral cancer cells were examined using a MTT assay, nuclear staining with DAPI, immunoblotting and a determination of caspase activation in KB human oral cancer cells.
Results: Quercetin inhibited the growth of KB cells in a concentration- and time-dependent manner but rutin did not have a significant effect on the cell viability of KB cells. Treatment of KB cells with quercetin resulted in nuclear condensation and fragmentation, whereas rutin had little effect on nuclear condensation and fragmentation. Quercetin time-dependently promoted the proteolytic cleavage of procaspase-3 in KB cells with increasing amounts of cleaved caspase-3. On the other hand,rutin did not promote signifi cant proteolytic cleavage of procaspase-3. The proteolytic processing of caspase-7 in KB cells was increased by quercetin but not by rutin. Quercetin promoted the proteolytic cleavage of procaspase-9 with increases in the amount of cleaved caspase-9, whereas rutin did not. The activation of caspase-3 and -7 in living KB cells treated with quercetin was detected by fl uorescence microscopy but rutin did not lead to signifi cant caspase-3/-7 activation in the cells.
Conclusion: Quercetin strongly inhibits cell proliferation and induces apoptosis in KB human oral cancer cells, and might have potential properties for anti oral cancer drug discovery.
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