BMB Reports 2019; 52(1): 5-12  
Metabolic features and regulation in cell senescence
So Mee Kwon1, Sun Mi Hong1,2, Young-Kyoung Lee1, Seongki Min1,2 & Gyesoon Yoon1,2,*
Departments of 1Biochemistry and 2Biomedical Sciences (BK21 Plus), Ajou University School of Medicine, Suwon 16499, Korea
Correspondence to: Tel: +82-31-219-5054; Fax: +82-31-219-5059; E-mail: ypeace@ajou.ac.kr
Received: October 10, 2018; Published online: January 31, 2019.
© Korean Society for Biochemistry and Molecular Biology. All rights reserved.

Abstract
Organismal aging is accompanied by a host of progressive metabolic alterations and an accumulation of senescent cells, along with functional decline and the appearance of multiple diseases. This implies that the metabolic features of cell senescence may contribute to the organism's metabolic changes and be closely linked to age-associated diseases, especially metabolic syndromes. However, there is no clear understanding of senescent metabolic characteristics. Here, we review key metabolic features and regulators of cellular senescence, focusing on mitochondrial dysfunction and anabolic deregulation, and their link to other senescence phenotypes and aging. We further discuss the mechanistic involvement of the metabolic regulators mTOR, AMPK, and GSK3, proposing them as key metabolic switches for modulating senescence.
Keywords: Glycogenesis, Lipogenesis, Metabolic regulators, Mitochondrial dysfunction, Protein synthesis
Figures
Fig. 3. The key signaling kinases acting as metabolic switches to regulate senescence.


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