Inhibitory effect of ethanolic extract of Ramulus mori on adipogenic differentiation of 3T3-L1 cells and their antioxidant activity

Seonwook Hwang, Jeong Keun Kim, In Ho Kim, Young Hee Lim

Research output: Contribution to journalArticle

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Abstract

Ramulus mori is known as a medical herb for improving health. The antioxidant and anti-obesity effects of an ethanolic extract of R. mori containing oxyresveratrol (ERM) were investigated. The antioxidant activity of ERM was determined by in vitro chemical- and cell-based methods. ERM showed high antioxidant activities. In particular, ERM showed a high scavenging activity for peroxyl radicals in both chemical- and cell-based assays. To investigate the inhibitory effect of ERM on adipogenic differentiation, 3T3-L1 cells were treated with ERM (20, 30, and 40 μg/mL) for 8 days during induction of differentiation. ERM significantly suppressed lipid accumulation in 3T3-L1 adipocytes and decreased expression levels of adipogenic genes peroxisome proliferator-activated receptor gamma (PPARγ), CCAAT/enhancer-binding proteins alpha (C/EBPα), and sterol regulatory element-binding protein 1 (SREBP1). ERM also induced G0/G1 phase arrest in 3T3-L1 adipocytes during mitotic clonal expansion (MCE). The results suggest that ERM possesses anti-adipogenic activity and antioxidant property. Practical applications: Ramulus mori, a branch of Morus alba L., has been used as a traditional herb tea in Asia and is approved as a food source in South Korea, indicating it is safe. An ethanolic extract of R. mori containing oxyresveratrol (ERM) significantly suppresses lipid accumulation in 3T3-L1 adipocytes and inhibits adipogenesis. ERM shows a strong antioxidative activity. Adipogenesis is the process of adipocyte differentiation, which leads to lipid accumulation in obesity. Obesity is one of metabolic disorders and a major risk factor for various chronic diseases. Additionally, antioxidants can protect cells from damage caused by free radicals. Therefore, ERM could be developed as a health functional food to prevent obesity and many diseases caused by oxidative damage.

Original languageEnglish
JournalJournal of Food Biochemistry
DOIs
Publication statusAccepted/In press - 2017 Jan 1

Fingerprint

3T3-L1 Cells
Morus
Morus (Moraceae)
adipocytes
obesity
Adipocytes
Antioxidants
antioxidant activity
Obesity
extracts
Adipogenesis
antioxidants
binding proteins
herbs
Lipids
lipids
cells
Morus alba
health foods
CCAAT-Enhancer-Binding Protein-alpha

Keywords

  • Anti-adipogenesis
  • Antioxidant
  • Cell cycle
  • Lipid accumulation
  • Ramulus mori

ASJC Scopus subject areas

  • Biophysics
  • Food Science
  • Pharmacology
  • Cell Biology

Cite this

Inhibitory effect of ethanolic extract of Ramulus mori on adipogenic differentiation of 3T3-L1 cells and their antioxidant activity. / Hwang, Seonwook; Kim, Jeong Keun; Kim, In Ho; Lim, Young Hee.

In: Journal of Food Biochemistry, 01.01.2017.

Research output: Contribution to journalArticle

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abstract = "Ramulus mori is known as a medical herb for improving health. The antioxidant and anti-obesity effects of an ethanolic extract of R. mori containing oxyresveratrol (ERM) were investigated. The antioxidant activity of ERM was determined by in vitro chemical- and cell-based methods. ERM showed high antioxidant activities. In particular, ERM showed a high scavenging activity for peroxyl radicals in both chemical- and cell-based assays. To investigate the inhibitory effect of ERM on adipogenic differentiation, 3T3-L1 cells were treated with ERM (20, 30, and 40 μg/mL) for 8 days during induction of differentiation. ERM significantly suppressed lipid accumulation in 3T3-L1 adipocytes and decreased expression levels of adipogenic genes peroxisome proliferator-activated receptor gamma (PPARγ), CCAAT/enhancer-binding proteins alpha (C/EBPα), and sterol regulatory element-binding protein 1 (SREBP1). ERM also induced G0/G1 phase arrest in 3T3-L1 adipocytes during mitotic clonal expansion (MCE). The results suggest that ERM possesses anti-adipogenic activity and antioxidant property. Practical applications: Ramulus mori, a branch of Morus alba L., has been used as a traditional herb tea in Asia and is approved as a food source in South Korea, indicating it is safe. An ethanolic extract of R. mori containing oxyresveratrol (ERM) significantly suppresses lipid accumulation in 3T3-L1 adipocytes and inhibits adipogenesis. ERM shows a strong antioxidative activity. Adipogenesis is the process of adipocyte differentiation, which leads to lipid accumulation in obesity. Obesity is one of metabolic disorders and a major risk factor for various chronic diseases. Additionally, antioxidants can protect cells from damage caused by free radicals. Therefore, ERM could be developed as a health functional food to prevent obesity and many diseases caused by oxidative damage.",
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