Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Regulation of Bcl-2 Family and Cyclooxygenases by Furanoterpenoids Isolated from a Marine Sponge Swcotragus nt. in Human Lung Cancer A549 Cells.

인체폐암세포의 Bcl-2 family 및 cyclooxygenases의 발현에 미치는 해면동물 Sarcotragus sp. 유래 furanoterpenoids의 영향

  • 최영현 (동의대학교 한의과대학 생화학교실) ;
  • 최혜정 (부산대학교 약학대학 약학과) ;
  • 김남득 (부산대학교 약학대학 약학과) ;
  • 정지형 (부산대학교 약학대학 약학과)
  • Published : 2004.06.01
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Abstract

We investigated the cytotoxic effects of seven furanoterpenoids 〔sarcotin A, epi-sarcotin A, ircinin-1, epi-sarcotrine B, sarcotin I, (8E, l3Z, 20Z)-strobilinin/(7E,l3Z, 20Z)-felixinin and (7E,12E,18R,20Z)-variabilin〕 isolated from the sponge Sarcotragus sp. (the order Dictyoceratida) on the growth of A549 human lung carcinoma cells. MTT data revealed that sarcotin A and (7E,12E,18R,20Z)-variabilin exhibited higher potencies on the anti-proliferative activities than the other compounds in A549 cells. The growth inhibition by treatment with compounds (especially epi-sarcotin A, ircinin-1 and epi-sarcotrine B) were associated with the induction of apoptotic cell death through the concentration-dependent increase of Bax/Bcl-2 ratio in a p53-dependent or independent pathway Additionally, epi-sarcotin A and ircinin-1 strongly inhibited the levels of cyclooxygenase (COX)-2 expression without alteration of COX-1. Taken together, the results suggest that the furanoterpenoids from the marine sponge have strong potentials as candidates for anti-cancer drugs.

본 연구에서 국내 연근해에 서식하는 해면 Sarcotragus sp. (Dictyoceratida속)에서 분리 추출된 7종의 furanoterpenoid계 화합물〔sarcotin A, epi-sarcotin A, ircinin-1, epi-sarcotrine B, sarcotin I, (8E,13Z,20Z) -strobilinin/ (7E,13Z,20Z) -felixinin and (7E,12E,18R,20Z)-variabilin〕의 항암 활성을 비교하기 위하여 A549 인체폐암세포를 대상으로 그들의 세포독성을 조사하였고, 이와 연관된 세포증식 억제 및 apoptosis 유발에 관여할 것으로 예상되는 중요한 유전자 몇 가지의 발현에 미치는 영향을 조사하였다. 조사된 7종의 화합물 모두 처리 농도 의존적으로 A549 폐암세포의 증식을 억제하였는데, 그중 sarcotin A 및 (7E,12E,18R,20Z)-variabilin이 비교적 높은 세포독성을 나타내었다. 이러한 세포증식의 억제는 종양억제 유전자 p53 의존적 또는 비의존적으로 Bcl-2 유전자에 대한 Bax의 발현 증가와 연관된 apoptosis 유발과 관련이 있었으며, epi-sarcotin A, ircinin-1 및 epi-sarcotrine B 처리군에서 이러한 현상은 두드러지게 관찰되었다. 또한 epi-sarcotin A와 ircinin-1은 COX-1의 발현에는 아무런 영향을 미치지 않았으나, COX-2의 발현은 선택적으로 저해하였다. 이러한 결과는 해양 해면동물에서 유래된 furanoterpenoid계 화합물이 선택 적으로 강력한 항암효과를 가질 수 있다는 것을 의미한다.

Keywords

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