Applied Biological Chemistry

  • 제46권1호
  • /
  • Pages.60-65
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  • 2003
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  • 2468-0834(pISSN)
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  • 2468-0842(eISSN)
한국응용생명화학회 (The Korean Society for Applied Biological Chemistry)
권호 표지

아가위(Crataegus pinnatifida Bunge)로 부터 HS 68세포의 MMP-1에 대한 저해활성 물질의 분리

Isolation and Characterization of MMP-1 Inhibitor Peptide from Crataegus pinnatifida Bunge in Fibroblast Cell Line HS68 Cells

  • 이세영 (고려대학교 생명공학원) ;
  • 전혁 (고려대학교 생명공학원) ;
  • 조홍연 (고려대학교 생명공학원) ;
  • 안정희 (고려대학교 생명공학원)
  • Lee, Se-Young (Graduate School of Biotechnology, Korea University) ;
  • Chun, Hyug (Graduate School of Biotechnology, Korea University) ;
  • Cho, Hong-Yun (Graduate School of Biotechnology, Korea University) ;
  • An, Jeung-Hee (Graduate School of Biotechnology, Korea University)
  • 발행 : 2003.02.28
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초록

피부노화는 크게 생리적 노화(chmnological aging)와 광노화(photoaging)로 나누어 진다. 진피세포와 표피세포에서 광노화는 MMP(Matrix metalloproteinase)의 분비량이 증가하면서 MMP와 TIMP(Tissue inhibitors of metalloproteinase)의 균형을 깨뜨려 진피층을 붕괴가 유도된다. 본 연구는 광노화 및 암 전이 과정, 관절염 등 여러 질병에서 주목받고 있는 MMP-1의 생성 억제활성물질을 120여종의 식용식물(edible plants)로부터 활성물질을 분리, 정제하고 정제물질의 일부 물리화학적 성질을 규명하였다. 표피세포(HaCaT)와 진피세포(HS68) 세포주를 이용하여 다양한 강도의 UVB를 조사하여 생성되는 MMP-1의 양과 감수성을 검토한 결과 HS68에서 UVB의 조사량에 비례하여 MMP 분비량이 증가되는 반면, HaCaT세포의 MMP 분비량은 유의적 차이를 보이지 않았다. MMP-1 생성량이 가장 높은 UVB 조사량은 35 $mJ/cm^2$ 내외이었고, UVB조사 후 분비되는 MMP-1의 양은 36-48시간대에 가장 높게 나타났다. MMP-1의 생성 억제활성을 검색한 결과 아가위(Crataegus pinnatifida Bunge)의 냉수분획층(CP)에서 최대활성을 나타내었다. CP를 periodate 산화 처리에서는 변화가 없으나 pronase 처리시 활성이 감소되는것으로 단백질이 활성의 본체임을 확인하였다. 정제는 CP의 ultrafiltration처리, DEAE-Tayopearl 650c, Butyl-Tayopearl 650M의 이온교환크로마토그래프와 Bio-Gel P-30겔 여과 크로마토그래프 통해서 MMP-1 억제 활성 분획층 CP-2Va-2를 정제하였다. CP-2Va-2의 MMP-1억제활성은 88.5%이었으며, 분자량은 HPLC로 확인한 결과 19kDa, SDS-PAGE에서는 20 kDa 확인됨으로써 monomer구조임을 알 수 있었다.

MMP-1 inhibitory compounds were isolated from 120 Korean traditional edible plants. UP- 1 activity significantly increased linearly with increasing UVB dose in normal human foreskin fibroblast HS68 cell, showing maximum activity at approximately 35 $mJ/cm^2$, whereas in HaCaT cell, normal human keratinocyte, no increase was observed. Maximum secretion of MMP-1 after UVB treatment occurred around 36-48 k after treatment. MMP-1 inhibitory compound isolated from cold-water fraction of Cataegus pinnatifida Bunge showed the mort potent activity. The MMP-1 inhibitory compound was deduced as a peptide based on the fact that pronase digestion decreased the activity whereas periodate oxidation did not. The most potent UP- 1-inhibitory protein, CP-2Va-2, showing an activity of 88.5% against MMP-1, was isolated through sequential column chromatography on DEAE-Toyopearl 650C, Butyl-Toyopearl 650M, and Bio-Gel P-30. Molecular weight of CP-2Va-2 determined through high performance liquid chromatography and SDS PACE was 19 and 20 kDa. respectively, signifying a monomeric structure.

키워드

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