Journal Article Epublish 9 citations
PubMed: 35682666 DOI: 10.3390/ijms23115986
Metformin Inhibits Lipid Droplets Fusion and Growth via Reduction in Cidec and Its Regulatory Factors in Rat Adipose-Derived Stem Cells.
Int J Mol Sci 23(11)
Authors: Lijing Yang, Xiaowei Jia, Dongliang Fang, Yuan Cheng, Zhaoyi Zhai, Wenyang Deng, Baopu Du, Tao Lu, Lulu Wang, Chun Yang, Yan Gao
Affiliations
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China.
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China.
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China. Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China.
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China.
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China. Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China. Department of Experimental Center for Basic Medical Teaching, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China.
Abstract
Metformin is still being investigated due to its potential use as a therapeutic agent for managing overweight or obesity. However, the underlying mechanisms are not fully understood. Inhibiting the adipogenesis of adipocyte precursors may be a new therapeutic opportunity for obesity treatments. It is still not fully elucidated whether adipogenesis is also involved in the weight loss mechanisms by metformin. We therefore used adipose-derived stem cells (ADSCs) from inguinal and epididymal fat pads to investigate the effects and mechanisms of metformin on adipogenesis in vitro. Our results demonstrate the similar effect of metformin inhibition on lipid accumulation, lipid droplets fusion, and growth in adipose-derived stem cells from epididymal fat pads (Epi-ADSCs) and adipose-derived stem cells from inguinal fat pads (Ing-ADSCs) cultures. We identified that cell death-inducing DFFA-like effector c (Cidec), Perilipin1, and ras-related protein 8a (Rab8a) expression increased ADSCs differentiation. In addition, we found that metformin inhibits lipid droplets fusion and growth by decreasing the expression of Cidec, Perilipin1, and Rab8a. Activation of AMPK pathway signaling in part involves metformin inhibition on Cidec, Perilipin1, and Rab8a expression. Collectively, our study reveals that metformin inhibits lipid storage, fusion, and growth of lipid droplets via reduction in Cidec and its regulatory factors in ADSCs cultures. Our study supports the development of clinical trials on metformin-based therapy for patients with overweight and obesity.
MeSH
Cells, Adipogenesis, Growth, Microscopy, Electron, Scanning Transmission, Lipid Droplets, Stem Cells, Obesity, Therapeutics, Overweight, Metformin
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