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Citrus aurantium L. dry extracts promote C/ebpβ expression and improve adipocyte differentiation in 3T3-L1 cells.

Citrus aurantium L. dry extracts promote C/ebpβ expression and improve adipocyte differentiation in 3T3-L1 cells.
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Raciti GA, Fiory F, Campitelli M, Desiderio A, Spinelli R, Longo M, Nigro C, Pepe G, Sommella E, Campiglia P, Formisano P, Beguinot F, Miele C,


Raciti GA, Fiory F, Campitelli M, Desiderio A, Spinelli R, Longo M, Nigro C, Pepe G, Sommella E, Campiglia P, Formisano P, Beguinot F, Miele C, (click to view)

Raciti GA, Fiory F, Campitelli M, Desiderio A, Spinelli R, Longo M, Nigro C, Pepe G, Sommella E, Campiglia P, Formisano P, Beguinot F, Miele C,

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PloS one 2018 03 2913(3) e0193704 doi 10.1371/journal.pone.0193704

Abstract

Metabolic and/or endocrine dysfunction of the white adipose tissue (WAT) contribute to the development of metabolic disorders, such as Type 2 Diabetes (T2D). Therefore, the identification of products able to improve adipose tissue function represents a valuable strategy for the prevention and/or treatment of T2D. In the current study, we investigated the potential effects of dry extracts obtained from Citrus aurantium L. fruit juice (CAde) on the regulation of 3T3-L1 cells adipocyte differentiation and function in vitro. We found that CAde enhances terminal adipocyte differentiation of 3T3-L1 cells raising the expression of CCAAT/enhancer binding protein beta (C/Ebpβ), peroxisome proliferator activated receptor gamma (Pparγ), glucose transporter type 4 (Glut4) and fatty acid binding protein 4 (Fabp4). CAde improves insulin-induced glucose uptake of 3T3-L1 adipocytes, as well. A focused analysis of the phases occurring in the pre-adipocytes differentiation to mature adipocytes furthermore revealed that CAde promotes the early differentiation stage by up-regulating C/ebpβ expression at 2, 4 and 8 h post the adipogenic induction and anticipating the 3T3-L1 cell cycle entry and progression during mitotic clonal expansion (MCE). These findings provide evidence that the exposure to CAde enhances in vitro fat cell differentiation of pre-adipocytes and functional capacity of mature adipocytes, and pave the way to the development of products derived from Citrus aurantium L. fruit juice, which may improve WAT functional capacity and may be effective for the prevention and/or treatment of T2D.

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