Journal of Nutrition and Health

The Korean Nutrition Society (한국영양학회)
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Effects of Lonicera caerulea extract on adipocyte differentiation and adipogenesis in 3T3-L1 cells and mouse adipose-derived stem cells (MADSCs)

댕댕이나무 열매 추출물이 지방전구세포와 마우스 지방유래줄기세포의 분화 및 지방 생성 억제에 미치는 영향

  • Park, Miey (Department of Food and Nutrition, Gachon University) ;
  • Lee, Changho (Research Group of Functional Food Materials, Korea Food Research Institute) ;
  • Lee, Hae-Jeung (Department of Food and Nutrition, Gachon University)
  • Received : 2019.01.09
  • Accepted : 2019.02.09
  • Published : 2019.02.28
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Abstract

Purpose: Obesity is a major health problem of global significance because it is clearly associated with an increased risk of health problems, such as nonalcoholic fatty liver disease (NAFLD), diabetes, cardiovascular diseases, and cancer. Lonicera caerulea (LC) originates from high mountains or wet areas and has been used as a traditional medicine in northern Russia, China, and Japan. LC contains a range of bioactive constituents, such as vitamins, minerals, and polyphenols. This study examined the anti-obesity effects of LC during differentiation in preadipocytes. Methods: The cell viability assay was performed after the differentiation of 3T3-L1 cells for 7 days. Oil Red O staining was used to visualize the changes in lipid droplets in 3T3-L1 cells and mouse adipose-derived stem cells (MADSCs). The mRNA expression of obesity-related genes was determined by quantitative real-time PCR. Results: According to the results of Oil Red O staining, the lipid levels and size of lipid droplets in the adipocytes were reduced and the LC extract (LCE, 0.25-1 mg/mL) markedly inhibited adipogenesis in a dose-dependent manner. The treatment of LCE also decreased the mRNA expression of peroxisome proliferator-activated receptor ${\gamma}$ ($PPAR{\gamma}$), CCAAT/enhancer binding protein-${\alpha}$ ($C/EBP{\alpha}$), and sterol regulatory element binding protein 1 (SREBP1) in 3T3-L1 cells. Western blot analysis showed that the $PPAR{\gamma}$, $C/EBP{\alpha}$, and SREBP1 protein levels in both 3T3-L1 and MADSC were reduced in a dose-dependent manner. Conclusion: These results suggest that LCE can inhibit adipogenic differentiation through the regulation of adipogenesis-related markers.

본 연구에서는 댕댕이나무 열매 추출물이 3T3-L1과 마우스 지방유래줄기세포의 지방 분화유도 및 지방생성에 미치는 영향을 살펴보았다. 3T3-L1에 댕댕이나무 열매 추출물을 처리하였을 때, 농도의존적으로 지방구의 생성을 줄였고 지방세포 분화에 있어서 중요한 전사인자인 $PPAR{\gamma}$, $C/EBP{\alpha}$, SREBP1의 발현을 억제시켜 지방 합성이 감소됨을 확인하였다. 또한, 마우스 지방에서 분리한 줄기세포의 지방 분화과정에서도 댕댕이나무 열매 추출물이 $PPAR{\gamma}$, $C/EBP{\alpha}$, SREBP1의 단백질 발현을 감소시켜 지방 축적을 농도 의존적으로 억제하였다. 이상의 결과로 댕댕이나무 열매 추출물은 세포독성이 없는 농도에서 지방 세포의 분화를 억제 하는 것으로 확인되어 항비만 기능성 소재로서의 활용 가능성이 있을 것으로 사료된다.

Keywords

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