학술논문
가르시니아 캄보지아 추출물의 지방세포 분화 및 지방 독성에 미치는 영향
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- 영문명
- 발행기관
- 한국축산식품학회
- 저자명
- 강은실 함선아 황정석 이창권 서한극
- 간행물 정보
- 『Food Science of Animal Resources』Korean Journal for Food Science of Animal Resources 제33권 제3호, 411~416쪽, 전체 6쪽
- 주제분류
- 농수해양 > 식품과학
- 파일형태
- 발행일자
- 2013.06.30
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국문 초록
영문 초록
This study aimed to examine the mechanisms underlying the effects of Garcinia cambogia extract on the adipogenic differentiation of 3T3-L1 cells and long-chain saturated fatty acid-induced lipotoxicity of HepG2 cells. 3T3-L1 preadipocytes, mouse embryonic fibroblast-adipose like cell line, were treated with MDI solution (0.5 mM IBMX, 1 μM dexamethasone, 10 μg/mL insulin) to generate a cellular model of adipocyte differentiation. Using this cellular model, the anti-obesity effect of Garcinia cambogia extract was evaluated. MDI-induced lipid accumulation and expression of adipogenesis related genes were detected by Oil red O staining, Nile Red staining, and Western blot analysis. Effects Garcinia cambogia extract on palmitate-induced lipotoxicity was also analyzed by MTT assay, LDH release, and DAPI staining in HepG2 cells. Garcinia cambogia extract significantly suppressed the adipogenic differentiation of preadipocytes and intracellular lipid accumulation in the differentiating adipocytes. Garcinia cambogia extract also markedly inhibited the expression of peroxisome proliferator- activated receptor γ2 (PPARγ2), CCAT/enhancer-binding protein α (C/EBPα), and adipocyte protein aP2 (aP2). In addition, Garcinia cambogia extract significantly attenuated palmitate-induced lipotoxicity in HepG2 cells. Palmitateinduced cellular damage and reactive aldehydes were also significantly reduced in the presence of Garcinia cambogia extract. These findings suggest that the Garcinia cambogia extract inhibits the adipogenic differentiation of 3T3 L1 preadipocytes, probably by regulating the expression of multiple genes associated with adipogenesis such as PPARγ2, C/EBPα, aP2, and thereby modulating fatty acid-induced lipotoxicity to reduce cellular injury in hepatocytes.
목차
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참고문헌
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