Epigallocatechin-3-gallate suppresses the lipid deposition through the apoptosis during differentiation in bovine bone marrow mesenchymal stem cells

Jin Young Jeong, Sekar Suresh, Mi Jang, Mi Na Park, Kuppannan Gobianand, Seungkwon You, Sung Heom Yeon, Hyun Jeong Lee

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    Epigallocatechin gallate (EGCG), a major component of tea, has known effects on obesity, fatty liver, and obesity-related cancer. We explored the effects of EGCG on the differentiation of bovine mesenchymal stem cells (BMSCs, which are multipotent) in a dose- and time-dependent manner. Differentiating BMSCs were exposed to various concentrations of EGCG (0, 10, 50, 100, and 200μM) for 2, 4, and 6 days. BMSCs were cultured in Dulbecco's modified Eagle's medium (DMEM)/highglucose medium with adipogenic inducers for 6 days, and the expression levels of various genes involved in adipogenesis were measured using real-time polymerase chain reaction (PCR) and Western blotting. We assessed apoptosis by flow cytometry and terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) staining of control and EGCG-exposed cells. We found that EGCG significantly suppressed fat deposition and cell viability (P < 0.05). The mRNA and protein levels of various adipogenic factors were measured. Expression of the genes encoding peroxisome proliferator-activated receptor gamma (PPARG), CCAAT/enhancer-binding protein alpha (CEBPA), fatty acid-binding protein 4 (FABP4), and stearoyl-CoA desaturase (SCD) were diminished by EGCG during adipogenic differentiation (P < 0.05). We also found that EGCG lowered the expression levels of the adipogenic proteins encoded by these genes (P < 0.05). EGCG induced apoptosis during adipogenic differentiation (P < 0.05). Thus, exposure to EGCG potentially inhibits adipogenesis by triggering apoptosis; the data suggest that EGCG inhibits adipogenic differentiation in BMSCs.

    Original languageEnglish
    Pages (from-to)52-64
    Number of pages13
    JournalCell Biology International
    Volume39
    Issue number1
    DOIs
    Publication statusPublished - 2015 Jan

    Bibliographical note

    Publisher Copyright:
    © 2014 The Authors.

    Keywords

    • Adipogenic factor
    • Apoptosis
    • BMSC
    • Differentiation
    • EGCG

    ASJC Scopus subject areas

    • Cell Biology

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