Identifying Exosome-Derived MicroRNAs as Candidate Biomarkers of Frailty

被引：57
作者：
Ipson B.R. [1 ,2 ]
Fletcher M.B. [2 ]
Espinoza S.E. [1 ,2 ,3 ]
Fisher A.L. [1 ,2 ,3 ,4 ]
机构：
[1] Center for Healthy Aging and Barshop Institute for Longevity and Aging Studies, UTHSCSA, San Antonio, 78229, TX
[2] Division of Geriatrics, Gerontology, and Palliative Medicine, Department of Medicine, UTHSCSA, San Antonio, 78229, TX
[3] GRECC, South Texas VA Healthcare System, San Antonio, 78229, TX
[4] GRECC—182, Audie L. Murphy VA Hospital, 7400 Merton Minter Blvd., San Antonio, 78229, TX
来源：
The Journal of Frailty & Aging | 2018年 / 7卷 / 2期
关键词：
biomarker; exosome; Frailty; microRNA;
D O I：
10.14283/jfa.2017.45
中图分类号：
学科分类号：
摘要：
Frailty is a geriatric syndrome associated with progressive physical decline and significantly increases risk for falls, disability, hospitalizations, and death. However, much remains unknown regarding the biological mechanisms that contribute to aging and frailty, and to date, there are no clinically used prognostic or diagnostic molecular biomarkers. The present study profiled exosome-derived microRNAs isolated from the plasma of young, robust older, and frail older individuals and identified eight miRNAs that are uniquely enriched in frailty: miR-10a-3p, miR-92a-3p, miR-185-3p, miR-194-5p, miR-326, miR-532-5p, miR-576-5p, and miR-760. Furthermore, since exosomes can deliver miRNAs to alter cellular activity and behavior, these miRNAs may also provide insights into the biological mechanisms underlying frailty; KEGG analysis of their target genes revealed multiple pathways implicated in aging and age-related processes. Although further validation and research studies are warranted, our study identified eight novel candidate biomarkers of frailty that may help to elucidate the multifactorial pathogenesis of frailty. © 2017, Serdi and Springer Nature Switzerland AG.
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页码：100 / 103
页数：3
相关论文
共 14 条
[11]  
Akintola A.A., van Heemst D., Insulin, aging, and the brain: mechanisms and implications, Front Endocrinol (Lausanne)., 6, (2015)
[12]  
Burkewitz K., Zhang Y., Mair W.B., AMPK at the nexus of energetics and aging, Cell Metab., 20, pp. 10-25, (2014)
[13]  
Martins R., Lithgow G.J., Link W., Long live FOXO: unraveling the role of FOXO proteins in aging and longevity, Aging Cell., 15, pp. 196-207, (2016)
[14]  
Saenz-Cuesta M., Arbelaiz A., Oregi A., Irizar H., Osorio-Querejeta I., Munoz-Culla M., Et al., Methods for extracellular vesicles isolation in a hospital setting, Front Immunol., 6, (2015)
12