생명과학회지 (Journal of Life Science)

  • 제19권8호
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  • Pages.1009-1015
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  • 2009
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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Flavonoid류와 diazepam의 시험관 내 MDA-MB-231 유방암세포 증식 억제 효과

In vitro Anti-proliferative Characteristics of Flavonoids and Diazepam on MDA-MB-231 Breast Cancer Cells

  • 김지관 (경북대학교 의학전문대학원 약리학교실) ;
  • 이만기 (경북대학교 의학전문대학원 약리학교실) ;
  • 이재태 (경북대학교 의학전문대학원 핵의학교실) ;
  • 하정희 (경북대학교 의학전문대학원 약리학교실)
  • Kim, Ji-Kwan (Department of Pharmacology, School of Medicine, Kyungpook National University) ;
  • Lee, Maan-Gee (Department of Pharmacology and 1Nuclear Medicine, School of Medicine, Kyungpook National University) ;
  • Lee, Jae-Tae (Department of Nuclear Medicine, School of Medicine, Kyungpook National University) ;
  • Ha, Jeoung-Hee (Department of Pharmacology, School of Medicine, Kyungpook National University)
  • 발행 : 2009.08.30
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초록

Flavonoid류와 진정제의 시험관 내 암세포증식억제효과를 관찰하기 위하여, 암세포의 말초형 benzodiazepine 수용체(이하 PBR로 약함) 활성도와 포도당 활용도에 대한 효과를 유방암 세포를 대상으로 검색하였다. 동시에 이미 항암활성이 잘 알려진 flavonoid류와의 상호작용도 관찰하였다. Fisetin (3,7,3',4'-tetrahydroxyflavone)과 diazepam의 암세포 증식 억제 효과는 악성도가 높은 MDA-MB-231 유방암 세포에서 MCF-7 유방암세포보다 저명하게 관찰되었다. MDA-MB-231 유방암세포에서, Apigenin (4',5,7-Trihydroxyflavone)과 fisetin 같은 flavonoid류처럼, $10^{-6}$ M 농도의 dazepam을 3일간 처치하였을 때 암세포 증식 억제효과를 나타내었으며, 이는 PBR 배위자들의 암세포 증식 증진효과와는 차이를 나타낸 것이다. Flavonoid 류처럼, MDA-MB-231 유방암세포에서, $10^{-6}$ M dazepam의 3일간 처치는 암세포의 PBR mRNA 발현에 큰 영향을 미치지 않았다. $10^{-6}$ M diazepam의 6 일간 처치는 암세포의 증식억제 효과가 증가되어 나타났으며, 암세포의 PBR mRNA 발현도 억제되었다. MDA-MB-231 유방암 세포에서, apigenin, fisetin과 diazepam은 포도당 유용도를 억제하였으며, 인슐린에 의한 포도당 유용도 증강효과도 억압하였다. Apigenin은 diazepam의 암세포 증식 억제 효과를 부가적으로 증강시켰다. 요약하면, 본 연구결과는 flavonoid류와 진정제의 시험관내 암세포 증식 억제효과와 부가적인 상호작용을 보여주고 있다. 결론적으로, 본 연구는 향후 좀더 진척된 시험을 위한 실험적인 기반 정보이다.

The beneficial use of sedatives is often required for medically ill patients. This study examined the effect of plant flavonoids and diazepam peripheral-type benzodiazepine receptor (PBR) activation and glucose utilization in breast cancer cells, along with their interactions. In estrogen receptor negative MDA-MB-231 cells, the anti-proliferative activity of fisetin (3,7,3',4'-tetrahydroxyflavone) and diazepam was more prominent than in estrogen receptor positive MCF-7 cells. Unlike PBR ligands, treatment with $10^{-6}$ M concentration of diazepam for 3 days exhibited anti-proliferative effects, while similar to apigenin (4',5,7-Trihydroxyflavone) and fisetin, diazepam hardly affected the PBR mRNA expression by MDA-MB-231 cells. Treatment with $10^{-6}$ M concentration of flavonoids and diazepam for 3 days inhibited the glucose utilization of MDA-MB-231 cells. Treatment with $10^{-6}$ M concentration of flavonoids and diazepam for 6 days showed increased cytotoxicity and reduced the PBR mRNA expression of the MDA-MB-231 cells. Apigenin enhanced diazepam-induced anti-proliferative effects on the MDA-MB-231 cells as well. All together, this study showed the in vitro anti-proliferative activity of flavonoids and diazepam on MDA-MB-231 breast cancer cells, plus additive enhancements. In conclusion, this study provides experimental basis for advanced trials in the future.

키워드

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