Integrative Biology Journals

Natural Products and Bioprospecting ›› 2020, Vol. 10 ›› Issue (3): 131-140.DOI: 10.1007/s13659-020-00240-6

• ORIGINAL ARTICLES • Previous Articles     Next Articles

Eriocalyxin B Inhibits Adipogenesis in 3T3-L1 Adipocytes by Cell Cycle Arrest

Rong-Fang Mu1,4, Yan-Fen Niu3, Qian Wang1,4, Hui-Min Zhou1,4, Jing Hu1, Wan-Ying Qin1,4, Wen-Yong Xiong1,2,4   

  1. 1 State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China;
    2 Key Laboratory of Medicinal Chemistry for Natural Resource, Yunnan University, Kunming 650500, Yunnan, People's Republic of China;
    3 Biomedical Engineering Research Center, Kunming Medical University, Kunming 650500, Yunnan, People's Republic of China;
    4 University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
  • Received:2020-03-17 Revised:2020-04-04 Online:2020-06-02 Published:2020-06-24
  • Contact: Wen-Yong Xiong, Jing Hu
  • Supported by:
    Thanks Dr. Jing Hu, Yan-Ting Lu and Fang Wang for discussing the work. This work was supported by National Key R&D Program of China, (2017YFC1700906) and Yunnan Provincial Science and Technology Department, China (2017FA044 and 2013HA023).

Eriocalyxin B Inhibits Adipogenesis in 3T3-L1 Adipocytes by Cell Cycle Arrest

Rong-Fang Mu1,4, Yan-Fen Niu3, Qian Wang1,4, Hui-Min Zhou1,4, Jing Hu1, Wan-Ying Qin1,4, Wen-Yong Xiong1,2,4   

  1. 1 State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China;
    2 Key Laboratory of Medicinal Chemistry for Natural Resource, Yunnan University, Kunming 650500, Yunnan, People's Republic of China;
    3 Biomedical Engineering Research Center, Kunming Medical University, Kunming 650500, Yunnan, People's Republic of China;
    4 University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
  • 通讯作者: Wen-Yong Xiong, Jing Hu
  • 基金资助:
    Thanks Dr. Jing Hu, Yan-Ting Lu and Fang Wang for discussing the work. This work was supported by National Key R&D Program of China, (2017YFC1700906) and Yunnan Provincial Science and Technology Department, China (2017FA044 and 2013HA023).

Abstract: Eriocalyxin B, an ent-Kaurene diterpenoid extracted from a traditional Chinese herb Isodon eriocalyx, has been shown to possess multifunctional activities such as anti-cancer and anti-inflammatory. However, the function and mechanism of the compound in adipocyte differentiation is still unknown. Here we reported that eriocalyxin B blunted adipogenesis remarkably by inhibiting the accumulation of lipid droplets, triglycerides and the expressions of adipogenesis-related factors, including C/EBPβ, C/EBPα, PPARγ, and FABP4. Moreover, we showed that the inhibition might be the consequence of cell cycle being arrested at the G2/M phase during the mitotic clonal expansion of adipocyte differentiation, most likely by suppressing mRNAs and proteins of CDK1, CDK2, Cyclin A and Cyclin B1. Overall, we conclude that eriocalyxin B is capable of inhibiting adipocyte differentiation at the early stage through downregulating the proteins involved in cell cycle progression.

Key words: Eriocalyxin B, Adipocyte differentiation, Cell cycle

摘要: Eriocalyxin B, an ent-Kaurene diterpenoid extracted from a traditional Chinese herb Isodon eriocalyx, has been shown to possess multifunctional activities such as anti-cancer and anti-inflammatory. However, the function and mechanism of the compound in adipocyte differentiation is still unknown. Here we reported that eriocalyxin B blunted adipogenesis remarkably by inhibiting the accumulation of lipid droplets, triglycerides and the expressions of adipogenesis-related factors, including C/EBPβ, C/EBPα, PPARγ, and FABP4. Moreover, we showed that the inhibition might be the consequence of cell cycle being arrested at the G2/M phase during the mitotic clonal expansion of adipocyte differentiation, most likely by suppressing mRNAs and proteins of CDK1, CDK2, Cyclin A and Cyclin B1. Overall, we conclude that eriocalyxin B is capable of inhibiting adipocyte differentiation at the early stage through downregulating the proteins involved in cell cycle progression.

关键词: Eriocalyxin B, Adipocyte differentiation, Cell cycle