Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Ginseng Saponin-Re and Coix lachrymajobi var. mayuen Regulate Obesity Related Genes Expressions, TNF-alpha, Leptin, Lipoprotein Lipase and Resistin in 3T3-L1 Adipocytes

지방세포 3T3-L1에 인삼 사포닌 Re와 의이인 추출액 처리시 비만관련 유전자인 TNF-α, lipoprotein lipase, leptin 및 resistin 발현 조절에 미치는 영향

  • Kim, Sung-Ok (Department of Biomaterial Control (BK21 Program), Dongeui University Graduate School and Department of Biochemistry, Dongeui University College of Oriental Medicine and Busan)
  • 김성옥 (동의대학교 대학원 바이오물질제어학과(BK21 program) 및 한의과대학 생화학교실)
  • Published : 2007.11.30
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Abstract

In order to determine if the mRNA and protein expression levels of 3T3-L1 adipocytes are influenced by oriental medicines, adipocytes were treated with $100\;{\mu}g/ml$ of G-Re and aqueous extract of a Coix lachrymajobi var. mayuen (AEC) every other day for 12 days, respectively. The tumor necrosis factor alpha ($TNF-{\alpha}$). mRNA and protein expressions were suppressed markedly in treated mature adipocytes. Those of lipoprotein lipase (LPL) levels were found to increase gradually in preadipocytes differentiating into mature adipocytes. Those were higher than that of the untreated mature adipocytes. The treated adipocytes showed reduction of leptin expression levels, while in untreated mature adipocytes cell, those of levels were significantly higher after the conversion of preadipocytes into mature adipocytes. The resistin levels in the treated adipocytes were significantly decreased comparing to that of the untreated mature adipocytes. In conclusion, the expression levels of LPL, $TNF-{\alpha}$, leptin and resistin mRNA and proteins are shown to be regulated by G-Re and AEC, making them potential candidates for controlling fat mass related obesity.

전통적인 한방약물로 이용되는 인삼(사포닌 Re)과 의이인 추출물을 분화단계별 지방세포에 $100\;{\mu}g/ml$ 씩 12일간 이틀에 한번씩 각각의 물질을 처리하였다. 비만지표 유전자로 알려져 있는 여러 유전자의 발현양을 mRNA와 단백질 수준에서 조사하였다. 완전성숙 지방세포에서 약물의 처리에 따라 $TNF-{\alpha}$ 발현이 비처리 세포에 비해 현저히 억제되었고, lipoprotein lipase는 mRNA와 단백질수준에서 그 발현 양이 증가하였다. 약물처리 세포에서 leptin과 resistin의 유전자 발현은 비처리세포에 비해 유의적인 감소되었다. 이러한 결과는 인삼 사포닌 뿐 아니라 의이인 추출액에서도 유사한 영향이 관찰되어 특히, 곡물인 의이인 추출액이 인삼 사포닌과 거의 비슷한 항비만 활성을 나타내어 장복으로 인한 세포독성을 최소화하면서 지방세포에 긍정적 영향을 미칠 뿐 아니라 인슐린 저항성 개선 효과도 기대되어진다. 향후 대사성 질환과 밀접한 관련이 있는 비만 관리 향상에 이용 할 수 있을 것으로 사료되어진다. 따라서 이 결과들을 바탕으로 동물실험을 통한 더 자세한 조절기능의 확인과 특히, 의이인 추출액에서의 생리활성물질에 대해서도 많은 체계적인 분석과 관련연구가 필요 할 것으로 사료된다.

Keywords

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