The activity of antioxidants and suppression of cancer cell proliferation in extracts of Orostachys japonicus A. Berger

바위솔 추출물의 항산화활성 및 암세포 증식억제

  • Kim, Chung-Hyun (School of Bioresources, College of natural science, Andong National University) ;
  • Park, Jae-Ho (School of Bioresources, College of natural science, Andong National University) ;
  • Lim, Jong-Kuk (School of Bioresources, College of natural science, Andong National University) ;
  • Lee, Kon-Joo (School of Bioresources, College of natural science, Andong National University) ;
  • Chung, Gyu-Young (School of Bioresources, College of natural science, Andong National University) ;
  • Jeong, Hyung-Jin (School of Bioresources, College of natural science, Andong National University)
  • 김충현 (안동대학교 자연과학대학 생명자원과학부) ;
  • 박재호 (안동대학교 자연과학대학 생명자원과학부) ;
  • 임종국 (안동대학교 자연과학대학 생명자원과학부) ;
  • 이건주 (안동대학교 자연과학대학 생명자원과학부) ;
  • 정규영 (안동대학교 자연과학대학 생명자원과학부) ;
  • 정형진 (안동대학교 자연과학대학 생명자원과학부)
  • Published : 2003.03.31

Abstract

The antioxidative activities and biological properties in the EtOAc extracts and purified extracts of Orostachys japonicus were measured by assay of DPPH, xanthine/xanthine oxidase and mammalian cells(2-12). Scavenging of DPPH radical and inhibition of xanthine/xanthine oxidase of EtOAc extracts were showed the highest activity in the arable land and in September. The S-4 fraction showed the highest activity among the silica-gel column chromatography fractions. LH-4 fraction showed higher activity than the other fractionsins in assay of DPPH and xanthine/xanthine oxidase. Fatty acids and phenolic compounds were identified by GC/MS and main compounds were 1,2,3-benzenetriol, alpha-androsta-7,14-diene in LH-4 fraction. The activities of POD and SOD in samples havested on different habitats were high such as arable land> intermountain> seashore. That of POD and SOD in crude extracts of late stage were higher than early stage. Isozyme bands of crude extracts samplinged in all habitats and all growing stages showed two bands and the signal intensity showed strongly according to passage of growing stage. The purified extracts of LH-4 fraction showed excellent inhibition effect in proliferation of HL-60 cells and markedly suppressed colony formation in mouse fibroblast cells. Dose response between partially purified extracts(400ppm) and negative control did not produced statistically significant reduction in colony formation.

바위솔의 추출물로부터 항산화 활성 및 동물 항암세포를 이용한 생물학적 특성을 조사 해 본 결과는 다음과 같다. 생육지별 DPPH 프리라디칼 소거 및 xanthine/xanthine oxidase 억제 활성비교에서 재배지에서 수확한 시료의 활성이 $6.07(IC_{50}:{\mu}g/m{\ell})$로 가장 높았다 생육시기별 DPPH 프리라디칼 소거 및 xanthine/xanthine oxidase 억제의 활성은 9월 수확물이 가장 활성이 높았다. 실리카겔 컬럼크로마토그래피를 이용한 항산화물질 분리결과에서 S-4 분획물의 DPPH와 xanthine oxidase 억제활성이 $5.02(IC_{50}\;:\;{\mu}g/m{\ell})$$6.18(IC_{50}:{\mu}g/m{\ell})$을 나타냄으로써 높은 분리효율를 보였다. 항산화활성이 가장 높았던 LH-4 분획물의 주요화합물은 GC/MS에 의하여 지방산, 폴리페놀화합물 및 페놀유도체로 동정되었으며 alpha-androsta-7,14-diene과 1,2,3-benzenetriol이 주 물질이었다. POD 및 SOD 활성은 생육지간에 재배지, 산, 바닷가 순으로, 생육시기간에는 시기가 늦을수록 높게 나타났다 SOD 동위효소의 밴드수는 전 생육지, 전 생육시기에서 공히 2개의 밴드가 나타났으나, 그 세기는 재배지와 9월의 수확물이 가장 높은 활성을 나타내었다. 정제된 LH-4 분획물은 HL-60 세포의 종양증식을 억제시켰으며 종양유발유전자와 IPTG로 콜로니 형성을 유도한 암세포(2-12 cells)에서 분획물 400ppm 처리와 negative control 처리간의 colony형성은 유의차가 없었다.

Keywords

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