PMID- 28677323 OWN - NLM STAT- MEDLINE DCOM- 20180515 LR - 20190228 IS - 1474-9726 (Electronic) IS - 1474-9718 (Print) IS - 1474-9718 (Linking) VI - 16 IP - 5 DP - 2017 Oct TI - Caloric restriction impacts plasma microRNAs in rhesus monkeys. PG - 1200-1203 LID - 10.1111/acel.12636 [doi] AB - Caloric restriction (CR) is one of the most robust interventions shown to delay aging in diverse species, including rhesus monkeys (Macaca mulatta). Identification of factors involved in CR brings a promise of translatability to human health and aging. Here, we show that CR induced a profound change in abundance of circulating microRNAs (miRNAs) linked to growth and insulin signaling pathway, suggesting that miRNAs are involved in CR's mechanisms of action in primates. Deep sequencing of plasma RNA extracts enriched for short species revealed a total of 243 unique species of miRNAs including 47 novel species. Approximately 70% of the plasma miRNAs detected were conserved between rhesus monkeys and humans. CR induced or repressed 24 known and 10 novel miRNA species. Regression analysis revealed correlations between bodyweight, adiposity, and insulin sensitivity for 10 of the CR-regulated known miRNAs. Sequence alignment and target identification for these 10 miRNAs identify a role in signaling downstream of the insulin receptor. The highly abundant miR-125a-5p correlated positively with adiposity and negatively with insulin sensitivity and was negatively regulated by CR. Putative target pathways of CR-associated miRNAs were highly enriched for growth and insulin signaling that have previously been implicated in delayed aging. Clustering analysis further pointed to CR-induced miRNA regulation of ribosomal, mitochondrial, and spliceosomal pathways. These data are consistent with a model where CR recruits miRNA-based homeostatic mechanisms to coordinate a program of delayed aging. CI - (c) 2017 The Authors. Aging Cell published by the Anatomical Society and John Wiley & Sons Ltd. FAU - Schneider, Augusto AU - Schneider A AD - Faculdade de Nutricao, Universidade Federal de Pelotas, Pelotas-RS, 96010-610, Brazil. AD - College of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, 32827, USA. FAU - Dhahbi, Joseph M AU - Dhahbi JM AD - College of Medicine, California University of Science and Medicine, Colton, CA, 92324, USA. FAU - Atamna, Hani AU - Atamna H AD - College of Medicine, California University of Science and Medicine, Colton, CA, 92324, USA. FAU - Clark, Josef P AU - Clark JP AD - Department of Medicine, University of Wisconsin, Madison, WI, 53705, USA. FAU - Colman, Ricki J AU - Colman RJ AD - Wisconsin National Primate Research Center, Madison, WI, 53706, USA. FAU - Anderson, Rozalyn M AU - Anderson RM AD - Department of Medicine, University of Wisconsin, Madison, WI, 53705, USA. AD - GRECC, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA. LA - eng GR - P50 AG033514/AG/NIA NIH HHS/United States GR - R01 AG040178/AG/NIA NIH HHS/United States GR - R56 AG047358/AG/NIA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20170705 PL - England TA - Aging Cell JT - Aging cell JID - 101130839 RN - 0 (MicroRNAs) RN - EC 2.7.10.1 (Receptor, Insulin) SB - IM MH - Adiposity MH - Aging/*genetics/metabolism MH - Animals MH - Caloric Restriction/*methods MH - Conserved Sequence MH - *Gene Expression Regulation, Developmental MH - Humans MH - Insulin Resistance/*genetics MH - Macaca mulatta MH - Male MH - MicroRNAs/blood/classification/*genetics MH - Mitochondria/genetics/metabolism MH - Principal Component Analysis MH - Receptor, Insulin/genetics/metabolism MH - Ribosomes/genetics/metabolism MH - Signal Transduction MH - Spliceosomes/genetics/metabolism PMC - PMC5595684 OTO - NOTNLM OT - aging OT - caloric restriction OT - miR-125a-5p OT - microRNA OT - rhesus monkeys EDAT- 2017/07/06 06:00 MHDA- 2018/05/16 06:00 PMCR- 2017/10/01 CRDT- 2017/07/06 06:00 PHST- 2017/06/01 00:00 [accepted] PHST- 2017/07/06 06:00 [pubmed] PHST- 2018/05/16 06:00 [medline] PHST- 2017/07/06 06:00 [entrez] PHST- 2017/10/01 00:00 [pmc-release] AID - ACEL12636 [pii] AID - 10.1111/acel.12636 [doi] PST - ppublish SO - Aging Cell. 2017 Oct;16(5):1200-1203. doi: 10.1111/acel.12636. Epub 2017 Jul 5.