ReferenceID 5623
Lutein attenuates excessive lipid accumulation in differentiated 3T3-L1 cells and abdominal adipose tissue of rats by the SIRT1-mediated pathway
Int J Biochem Cell Biol
OBJECTIVE: Obesity is now a worldwide disease and is mainly attributable to increased body fat deposition. In a growing number of epidemiological studies, lutein has been revealed to have different degrees of anti-obesit
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Record Fields
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- Reference Id
- 5623
- Evidence Id
- 22213
- Core Evidence Id
- 22213
- Source Reference Id
- 4473
- Herb2 Reference Id
- HBREF005270
- Subject Paper Key
- HBIN033793_33529717
- Pubmed Id
- 33529717
- Doi
- 10.1016/j.biocel.2021.105932
- Paper Title
- Lutein attenuates excessive lipid accumulation in differentiated 3T3-L1 cells and abdominal adipose tissue of rats by the SIRT1-mediated pathway
- Paper Abstract
- OBJECTIVE: Obesity is now a worldwide disease and is mainly attributable to increased body fat deposition. In a growing number of epidemiological studies, lutein has been revealed to have different degrees of anti-obesity properties, but the potential underlying mechanisms that have been reported are limited. Therefore, we aimed to clarify the protective effects of lutein against excessive lipid accumulation, and we explored the role of SIRT1 and SIRT1-mediated pathways both in abdominal adipose tissue and mature 3T3-L1 cells during lutein administration. METHODS: In our design, male Sprague-Dawley rats were fed either control or high-fat diets with or without 25 mg/kg bw/day lutein for 5 weeks. Additionally, differentiated 3T3-L1 cells were incubated with 40 muM lutein or 10 muM Ex527 for 24 h. RESULTS: Lutein supplementation decreased the body weight, abdominal fat index ratio, frequency and mean area of larger adipocytes in HE staining induced by the high-fat diet and then activated the expression of SIRT1 and thus upregulated FoxO1, ATGL, and HSL expression and downregulated SREBP-1, FAS, and ACC expression both in abdominal adipose tissue and differentiated 3T3-L1 cells. However, coincubation with Ex527 and lutein suppressed the activation of SIRT1 and reversed the expression of FoxO1, ATGL, HSL, SREBP-1, FAS, and ACC in comparison to those in the Lut group. CONCLUSIONS: Overall, we suggest that the effects of lutein on attenuating excessive lipid accumulation are dependent on the SIRT1-mediated pathway in vivo and in vitro, which indicates that lutein administration may be a potential strategy for preventing excessive lipid accumulation and obesity.
- Journal
- Int J Biochem Cell Biol
- Publish Year
- 2021
- Experiment Subject
- differentiated 3t3-l1 cells; mature 3t3-l1 cells; sprague-dawley rat
- Experiment Type
- Animal & Cell Experiment
- Phenotype Related
- Obesity; Excessive Lipid Accumulation
- Paper Title Cn
- Paper Title En
- Lutein attenuates excessive lipid accumulation in differentiated 3T3-L1 cells and abdominal adipose tissue of rats by the SIRT1-mediated pathway
- Bilingual Status
- semi_complete