文章基本信息

标题：Docosahexaenoic Acid, a Potential Treatment for Sarcopenia, Modulates the Ubiquitin–Proteasome and the Autophagy–Lysosome Systems
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作者：Jung Hoon Lee ; Jun Hyoung Jeon ; Min Jae Lee 等
期刊名称：Nutrients
电子版ISSN：2072-6643
出版年度：2020
卷号：12
期号：9
页码：2597-2614
DOI：10.3390/nu12092597
出版社：MDPI Publishing
摘要：One of the characteristic features of aging is the progressive loss of muscle mass, a nosological syndrome called sarcopenia. It is also a pathologic risk factor for many clinically adverse outcomes in older adults. Therefore, delaying the loss of muscle mass, through either boosting muscle protein synthesis or slowing down muscle protein degradation using nutritional supplements could be a compelling strategy to address the needs of the world’s aging population. Here, we review the recently identified properties of docosahexaenoic acid (DHA). It was shown to delay muscle wasting by stimulating intermediate oxidative stress and inhibiting proteasomal degradation of muscle proteins. Both the ubiquitin–proteasome and the autophagy–lysosome systems are modulated by DHA. Collectively, growing evidence indicates that DHA is a potent pharmacological agent that could improve muscle homeostasis. Better understanding of cellular proteolytic systems associated with sarcopenia will allow us to identify novel therapeutic interventions, such as omega-3 polyunsaturated fatty acids, to treat this disease.
关键词：sarcopenia; docosahexaenoic acid (DHA); omega-3 polyunsaturated fatty acid (PUFA); proteolysis; proteasome; autophagy; ubiquitin; proteostasis sarcopenia ; docosahexaenoic acid (DHA) ; omega-3 polyunsaturated fatty acid (PUFA) ; proteolysis ; proteasome ; autophagy ; ubiquitin ; proteostasis