Antiadipogenic Effect of Korean Glasswort (Salicornia herbacea L.) Water Extract on 3T3-L1 Adipocytes
2014
Kim. M.J., Seoul Womens University, Seoul, Republic of Korea | Jun, H.Y., Seoul Womens University, Seoul, Republic of Korea | Kim, J.H., Seoul Womens University, Seoul, Republic of Korea
As a natural plant ingredients, glasswort (Salicornia herbacea L.) contains various physiological activities, mainly anti-oxidative and anti-diabetic activities. However, only a few studies have been carried out on its anti-adipogenic effect. This study investigated the anti-obesity effects of Salicornia herbacea L. on 3T3-L1 adipocytes. As adipogenesis of preadipocytes to adipocytes involves proliferation and differentiation of cells, we treated three concentrations (125, 250, and 500 ¥�g/mL) of Salicornia herbacea L. water extracts (SLW) in both pre-processing and post-processing stages. When 3T3-L1 adipocytes were differentiated and dyed with Oil Red O, adipocytes size and the value of relative Oil Red O staining were reduced by all concentrations of SLW in post-processing stage. Following adipogenic differentiation, the concentration of tumor necrosis factor-¥� (TNF-¥�) in the cell supernatant significantly increased upon treatment with 125 ¥�g/mL of SLW and further rose at concentrations of 250 and 500 ¥�g/mL during post-processing stage. There was no significant difference in glycerol production upon SLW treatment. Leptin production significantly decreased at all SLW concentrations during post-processing stage, whereas peroxisome proliferator activated receptor-¥� (PPAR-¥�) and adiponectin secretions were significantly enhanced. Overall results showed that SLW might have an anti-adipogenic effect via enhancement of TNF-¥� production, which causes dedifferentiation and inhibits lipid accumulations in adipocyte. Furthermore, SLW might prevent diabetes and cardiovascular disease, as it reduces leptin secretion and enhances production of both PPAR-¥� and adiponectin. However, further research is needed to elucidate the exact mechanism and bioactive compounds of glasswort.
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