Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Effect of Pueraria thunbergiana Extracts on the Activation of Immune Cells

칡 추출물의 면역세포 활성화 효과

  • Kim, Jong-Jin (Department of Biology, College of Life Science and Natural Resources, Sunchon National University) ;
  • Lee, Hyeok-Jae (Department of Clinical Laboratory Science, Seonam University) ;
  • Yee, Sung-Tae (Department of Biology, College of Life Science and Natural Resources, Sunchon National University)
  • 김종진 (순천대학교 생명산업과학대학 생물학과) ;
  • 이혁재 (서남대학교 임상병리학과) ;
  • 이성태 (순천대학교 생명산업과학대학 생물학과)
  • Received : 2012.07.04
  • Accepted : 2012.07.24
  • Published : 2012.08.30
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Abstract

In this experiment, the effects of Pueraria thunbergiana extracts on the activation of immune cells were studied. An immune cell-activating factor was partially purified from P. thunbergiana by means of physiological saline extraction, acetone precipitation, and heating inactivation. P. thunbergiana extracts increased the proliferation of spleen cells and induced the production of IL-2, IL-6, TNF-${\alpha}$, and IFN-${\gamma}$ by spleen cells. Also, they increased the proliferation of purified B cells and the production of IgM antibody in a dose-dependent fashion. The extract self-induced NO synthesis in a mouse macrophage cell line (RAW264.7). When cell lines were treated with extracts, the cytokines' (IL-$1{\beta}$, IL-6, and TNF-${\alpha}$) production was markedly increased. Therefore, P. thunbergiana extract can self-activate spleen cells, B cells, and macrophages. These results might be useful in further studies into a possible immune-activating agent derived from P. thunbergiana for the development of functional foods and drugs.

동양에서 한약 재료로 사용되는 칡(Pueraria thunbergiana)은 항산화, 항균효과 및 골다공증 치료 등의 다양한 효과가 있는 것으로 밝혀지고 있지만, 생태학적으로는 산림생태계를 파괴하는 종으로 알려져 있다. 본 연구는 칡의 면역학적 효과를 검증하여 유용한 자원으로 활용하는데 목적이 있다. 칡 추출물을 이용하여 생쥐 비장에 있는 면역세포 활성화 작용을 실험한 결과, 칡 추출물은 첫째, 농도 의존적으로 생쥐 비장세포의 증식 유도하였으며 IL-6, TNF-${\alpha}$, IL-2, IFN-${\gamma}$의 cytokine 생산을 증가시켰다. 둘째, 특히 비장세포 중 칡 추출물은 B세포를 자극하여 세포증식 및 IgM의 생산을 증가시켰다. 셋째, 대식세포주의 일산화질소 생산을 유도하였으며, 또 TNF-${\alpha}$, IL-6 및 IL-$1{\beta}$의 cytokine 분비를 유도하였다. 이상의 실험 결과, 본 실험에서 사용한 칡 추출물은 B세포와 대식세포 같은 면역세포의 증식과 각종 사이토카인을 생산을 유도하기 때문에, 면역반응을 조절하는 성분이 포함되어 있는 것으로 생각되며 특히, 아세톤 추출물이 물 추출물에 비하여 효과적이었다. 따라서 추가적인 실험을 통해, 면역반응을 조절하는 성분을 분리 정제하여 그 특성을 명확히 규명한다면, 각종 의약품이나 건강식품을 개발할 수 있는 원재료로서 칡을 이용할 수 있으며, 부수적으로 산림생태계에 복원에도 기여할 수 있을 것으로 사료된다.

Keywords

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