KSBB Journal

  • 제18권6호
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  • Pages.485-489
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  • 2003
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  • 1225-7117(pISSN)
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  • 2288-8268(eISSN)
한국생물공학회 (The Korean Society for Biotechnology and Bioengineering)
권호 표지

혈관내피세포의 이동에 미치는 Hepatocyte Growth Factor의 영향

Effect of Hepatocyte Growth Factor on the Migration of Human Umbilical Vein Endothelial Cells

  • 오인숙 (전북대학교 자연과학대학 생물과학부) ;
  • 소상섭 (전북대학교 자연과학대학 생물과학부) ;
  • 김환규 (전북대학교 자연과학대학 생물과학부)
  • 발행 : 2003.12.01
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초록

HGF는 내피세포의 증식 및 이동을 일으키는 강력한 혈관 신생 유도인자 및 생존인자로서 작용한다고 알려져 있다. 본 연구에서는 HUVECs 세포를 이용하여 내피세포의 이동 및 단백질분해효소의 분비에 미치는 HGF의 효과를 확인하였다. 그 곁과, HGF 처리 (10ng/$m\ell$)에 의해 HUVECs 세포의 이동이 약 3.3배 촉진되어, HGF가 HUVECs 세포에서 강력한 이동 유도인자라는 사실을 확인하였다. 내피세포의 이동에 관여할 것이라 여겨지는 MMPs, TIMPs 및 플라스민의 분비에 미치는 HGF의 효과를 관찰한 결과, HGF에 의해 MMP-2 및 MMP-3의 분비양이 각각 3.3배와 6.1배씩 증가되었다. HGF에 의한 TIMPs 분비효과를 관찰한 결과, TIMP-1은 대조군에 비해 약 1.8배 분비가 증가되었으나, TIMP-2는 대조군에 비해 약 3.1배 분비가 억제되었다. 또한, 광범위 MMPs-억제제인 BB-94 (20ng/$m\ell$) 및 플라스민 억제제인 $\alpha$$_2$-antiplasmin (100mU)을 처리했을 때, HGF에 의해 유도된 혈관내피세포의 이동이 거의 완벽하게 억제되었다. 결론적으로, HGF는 HUVECs 세포에서 MMP-2, MMP-3, MMP-9, TIMP-1 및 플라스민의 분비 증가를 일으켰으며, HGF에 의해 분비가 증가 된 단백질분해효소에 의해 세포외기질 및 기저막 단백질로의 혈관내피세포의 이동이 촉진되고, 결과적으로 혈관신생을 유도할 것이라 사료된다.

Hepatocyte growth factor (HGF) is a mesenchymal-derived cytokine. It exerts a motogenic effect on various target cells, which is displayed either by cell scattering, locomotion, and migration during the wound repair process of cultured cells, or invasiveness through the extracellular matrix, in vitro. Although it is known that HGF influences the motogenic effect of endothelial cells, the precise effects of HGF during migration are still poorly understood. To elucidate the role of HGF in endothelial cell migration, the effect of HGF on endothelial cell migration and MMPs and plasmin production were studied. We found that HGF induces the migration of cultured endothelial cells through increased MMPs and plasmin secretion.

키워드

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