1
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Khan R, Verma AK, Datta M. mir-98-5p regulates gluconeogenesis and lipogenesis by targeting PPP1R15B in hepatocytes. J Cell Commun Signal 2023; 17:881-895. [PMID: 36917438 PMCID: PMC10409962 DOI: 10.1007/s12079-023-00735-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/15/2023] [Indexed: 03/16/2023] Open
Abstract
Several reports suggest that circulatory miRNAs are deregulated in diverse diseases and used as markers for disease diagnosis and prognosis. Here we show that miR-98-5p, that is down-regulated in the circulation during diabetes, regulates hepatic gluconeogenesis and lipogenesis by targeting PPP1R15B. miR-98-5p overexpression significantly decreased the transcript and protein levels of PPP1R15B in hepatic HepG2 cells and increased p-eIF2α expression and these were prevented in the presence of its inhibitor. Two major hepatic hallmarks during diabetes i.e. hepatic lipid accumulation and glucose output were explored towards physiological relevance. As compared to scramble, overexpression of miR-98-5p decreased the transcript levels of both gluconeogenic and lipogenic genes together with a significant reduction in hepatic glucose production and fat accumulation in HepG2 cells. Using PASTAA to detect common transcription factors regulating these altered genes, CREB emerged as the most significantly enriched transcription factor. While miR-98-5p overexpression did not change the transcript levels of CREB, there was a significant change in its protein levels. While similar effects on gluconeogenic and lipogenic gene expression were detected using the PPP1R15B siRNA, the opposite was observed in the presence of miR-98-5p inhibitor alone. All these suggest that by targeting PPP1R15B, miR-98-5p regulates hepatic steatosis and glucose output; deregulation of which are characteristic hepatic features during diabetes. Therapeutic intervention of the miR-98/PPP1R15B axis might offer a potential strategy to target aberrant hepatic metabolism during diabetes.
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Affiliation(s)
- Rukshar Khan
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007 India
- Jamia Millia Islamia, Jamia Nagar, Okhla, Delhi, New Delhi 110025 India
| | - Amit Kumar Verma
- Jamia Millia Islamia, Jamia Nagar, Okhla, Delhi, New Delhi 110025 India
| | - Malabika Datta
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110007 India
- Academy of Scientific and Innovative Research, CSIR-HRDC, Kamala Nehru Nagar, Ghaziabad, Uttar Pradesh 201002 India
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2
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Faraldi M, Sansoni V, Perego S, Gomarasca M, Gerosa L, Ponzetti M, Rucci N, Banfi G, Lombardi G. Acute changes in free and extracellular vesicle-associated circulating miRNAs and myokine profile in professional sky-runners during the Gran Sasso d’Italia vertical run. Front Mol Biosci 2022; 9:915080. [PMID: 36090046 PMCID: PMC9459384 DOI: 10.3389/fmolb.2022.915080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
The modification of gene expression profile, a first step in adaptation to exercise, leads to changes in the level of molecules associated with skeletal muscle activity and energy metabolism—such as myokines—as well as those involved in their transcriptional regulation, like microRNA. This study aimed to investigate the influence of strenuous exercise on circulating microRNAs and their possible association with myokine response. Pre-competition and post-competition plasma samples were collected from 14 male athletes participating in a vertical run (+1,000 m gain, 3,600 m length). Circulating total (t-miRNA) and extracellular vesicle-associated (EV-miRNA) miRNAs were extracted from the pooled plasma. Nanoparticle tracking analysis was performed to investigate pre- and post-competition EV concentration and size distribution. A panel of 179 miRNAs was assayed by qPCR and analyzed by Exiqon GenEx v6 normalized on the global mean. t-miRNA and EV-miRNAs whose level was ≥5-fold up- or down-regulated were validated for each single subject. Target prediction on MirWalk v3.0, Gene-Ontology, and pathway enrichment analysis on Panther v17.0 were performed to define the potential biological role of the identified miRNAs. A panel of 14 myokines was assayed in each sample by a multiplex immunoassay. In whole plasma, five miRNAs were upregulated and two were downregulated; in the EV fraction, five miRNAs were upregulated and three were downregulated. Nanoparticle tracking analysis revealed a similar EV size distribution in pre- and post-competition samples and a decreased concentration in post-competition samples related to pre-competition samples. Gene-Ontology and pathway enrichment analysis revealed that the identified t-miRNAs and EV-miRNAs were potentially involved in metabolism regulation in response to exercise. Correlation between fold-change of the post-competition relative to pre-competition plasma level of both t-miRNAs and EV-miRNAs and myokines further confirmed these results. This study provides an example of a systemic response to acute endurance exercise, in which circulating miRNAs play a pivotal role.
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Affiliation(s)
- M. Faraldi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| | - V. Sansoni
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| | - S. Perego
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
- *Correspondence: S. Perego,
| | - M. Gomarasca
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| | - L. Gerosa
- Gruppo Ospedaliero San Donato Foundation, Milano, Italy
| | - M. Ponzetti
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy
| | - N. Rucci
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy
| | - G. Banfi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
- Vita-Salute San Raffaele University, Milano, Italy
| | - G. Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, Poznań, Polska
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3
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Aliakbari M, Saghebjoo M, Sarir H, Hedayati M. Hydroalcoholic extract of dill and aerobic training prevents high-fat diet-induced metabolic risk factors by improving miR-33 and miR-223 expression in rat liver. J Food Biochem 2022; 46:e14195. [PMID: 35460089 DOI: 10.1111/jfbc.14195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 03/25/2022] [Accepted: 04/05/2022] [Indexed: 11/27/2022]
Abstract
Exercise training and medicinal herb supplementation may improve microRNAs (miRNAs) expression associated with obesity. This study aimed to assess the effects of 10 weeks of aerobic training (AT) and dill extract (DE) on miR-33 and miR-223 expression of liver in high-fat diet (HFD)-induced obese rats. Forty male Wistar rats were fed a defined high-fat (n = 32) and standard (n = 8, nonobese control [NC]) diet. After obesity induction, obese rats were randomly allocated to four groups: AT, DE, AT + DE, and obese control (OC). Rats were euthanized and plasma and liver tissue samples were collected after the intervention. The liver expression of miR-33 was lower in the AT, DE, AT + DE, and NC groups compared with the OC group. Also, the liver miR-223 expression was higher in the AT, DE, AT + DE, and NC groups compared with the OC group. Moreover, the liver expression of miR-223 in the AT + DE group was higher compared with the AT and DE groups. The AT, DE, AT + DE, and NC groups had lower liver TC compared with the OC group. Also, the plasma level of apolipoprotein B (Apo B) was significantly lower, and liver HDL-C was significantly higher in the AT + DE and NC groups compared with the OC group. These findings show that long-term AT combined with the intake of DE may improve the plasma levels of Apo B, and TC and HDL-C levels in the liver, which is probably due to AT and DE positive effects on miR-33 and miR-223 in the liver of obese rats. PRACTICAL APPLICATIONS: Aerobic training reduces overweight and obesity health problems, however, the duration and intensity of the exercise training distinguish between individuals. We used an integrated approach combining pharmacological and non-pharmacological as a medical strategy to prevent HFD-induced metabolic injury in obese rats. The present results discovered that a combination of AT + DE intervention improves the miR-33 and miR-223 in the liver of obese rats.
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Affiliation(s)
- Mahdi Aliakbari
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Birjand, Birjand, Iran
| | - Marziyeh Saghebjoo
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Birjand, Birjand, Iran
| | - Hadi Sarir
- Department of Animal Science, Faculty of Agriculture, University of Birjand, Birjand, Iran
| | - Mehdi Hedayati
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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4
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Springer CB, Sapp RM, Evans WS, Hagberg JM, Prior SJ. Circulating MicroRNA Responses to Postprandial Lipemia with or without Prior Exercise. Int J Sports Med 2021; 42:1260-1267. [PMID: 34116579 DOI: 10.1055/a-1480-7692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Repeated exposure to a high-fat meal triggers inflammation and oxidative stress, contributing to the onset of cardiometabolic diseases. Regular exercise prevents cardiometabolic diseases and a prior bout of acute endurance exercise can counteract the detrimental cardiovascular effects of a subsequent high-fat meal. Circulating microRNAs (ci-miRs) are potential mediators of these vascular effects through regulation of gene expression at the posttranscriptional level. Therefore, we investigated the expression of ci-miRs related to vascular function (miR-21, miR-92a, miR-126, miR-146a, miR-150, miR-155, miR-181b, miR-221, miR-222) in plasma from healthy, recreationally to highly active, Caucasian adult men after a high-fat meal with (EX) and without (CON) a preceding bout of cycling exercise. Ci-miR-155 was the only ci-miR for which there was a significant interaction effect of high-fat meal and exercise (p=0.050). Ci-miR-155 significantly increased in the CON group at two (p=0.007) and four hours (p=0.010) after the high-fat meal test, whereas it significantly increased in the EX group only four hours after the meal (p=0.0004). There were significant main effects of the high-fat meal on ci-miR-21 (p=0.01), ci-miR-126 (p=0.02), ci-miR-146a (p=0.02), ci-miR-181b (p=0.02), and ci-miR-221 (p=0.008). Collectively, our results suggest that prior exercise does not prevent high-fat meal-induced increases in vascular-related ci-miRs.
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Affiliation(s)
- Catherine B Springer
- Department of Kinesiology, University of Maryland School of Public Health, College Park, United States
| | - Ryan M Sapp
- Department of Kinesiology, University of Maryland School of Public Health, College Park, United States
| | - William S Evans
- Department of Kinesiology, University of Maryland School of Public Health, College Park, United States
| | - James M Hagberg
- Department of Kinesiology, University of Maryland School of Public Health, College Park, United States
| | - Steven J Prior
- Department of Kinesiology, University of Maryland School of Public Health, College Park, United States.,Department of Veterans Affairs, Baltimore Veterans Affairs Geriatric Research, Education and Clincial Center, Baltimore, United States
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5
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Sapp RM, Chesney CA, Eagan LE, Evans WS, Zietowski EM, Prior SJ, Hagberg JM, Ranadive SM. Changes in circulating microRNA and arterial stiffness following high-intensity interval and moderate intensity continuous exercise. Physiol Rep 2021; 8:e14431. [PMID: 32358919 PMCID: PMC7195557 DOI: 10.14814/phy2.14431] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 12/14/2022] Open
Abstract
High‐intensity interval (HII) exercise elicits distinct vascular responses compared to a matched dose of moderate intensity continuous (MOD) exercise. However, the acute effects of HII compared to MOD exercise on arterial stiffness are incompletely understood. Circulating microRNAs (ci‐miRs) may contribute to the vascular effects of exercise. We sought to determine exercise intensity‐dependent changes in ci‐miR potentially underlying changes in arterial stiffness. Ten young, healthy men underwent well‐matched, 30‐min HII and MOD exercise bouts. RT‐qPCR was used to determine the levels of seven vascular‐related ci‐miRs in serum obtained immediately before and after exercise. Arterial stiffness measures including carotid to femoral pulse wave velocity (cf‐PWV), carotid arterial compliance and β‐stiffness, and augmentation index (AIx and AIx75) were taken before, 10min after and 60min after exercise. Ci‐miR‐21‐5p, 126‐3p, 126‐5p, 150‐5p, 155‐5p, and 181b‐5p increased after HII exercise (p < .05), while ci‐miR‐150‐5p and 221‐3p increased after MOD exercise (p = .03 and 0.056). One hour after HII exercise, cf‐PWV trended toward being lower compared to baseline (p = .056) and was significantly lower compared to 60min after MOD exercise (p = .04). Carotid arterial compliance was increased 60min after HII exercise (p = .049) and was greater than 60min after MOD exercise (p = .02). AIx75 increased 10 min after both HII and MOD exercise (p < .05). There were significant correlations between some of the exercise‐induced changes in individual ci‐miRs and changes in cf‐PWV and AIx/AIx75. These results support the hypotheses that arterial stiffness and ci‐miRs are altered in an exercise intensity‐dependent manner, and ci‐miRs may contribute to changes in arterial stiffness.
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Affiliation(s)
- Ryan M Sapp
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, MD, USA
| | - Catalina A Chesney
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, MD, USA
| | - Lauren E Eagan
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, MD, USA
| | - William S Evans
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, MD, USA
| | - Evelyn M Zietowski
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, MD, USA.,Department of Biology, University of Maryland, College Park, MD, USA
| | - Steven J Prior
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, MD, USA.,Baltimore Veterans Affairs Geriatric Research, Education and Clinical Center, Baltimore, MD, USA
| | - James M Hagberg
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, MD, USA
| | - Sushant M Ranadive
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, MD, USA
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6
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Miyazawa R, Iso Y, Tsujiuchi M, Shoji M, Takahashi T, Koba S, Ebato M, Miyagawa T, Geshi E, Suzuki H. Potential Association of Circulating MicroRNA-181c and MicroRNA-484 Levels with Cardiorespiratory Fitness after Myocardial Infarction: A Pilot Study. Prog Rehabil Med 2021; 6:20210017. [PMID: 33768186 PMCID: PMC7972949 DOI: 10.2490/prm.20210017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/03/2021] [Indexed: 11/11/2022] Open
Abstract
Objectives: In the field of exercise physiology, there has been great interest in exploring circulating microRNAs (miRs) as potential biomarkers. However, it remains to be determined whether circulating miRs reflect cardiorespiratory fitness. The aim of this study was to investigate the association between circulating levels of specific miRs and cardiorespiratory fitness evaluated by cardiopulmonary exercise testing (CPET) after acute myocardial infarction (MI). Methods: Twenty patients who had had an acute MI were included. All patients underwent CPET in the convalescent phase. Quantitative real-time polymerase chain reaction analyses for miR-181 members (a/b/c) and miR-484 were performed to determine the expression levels in the peripheral blood of the included patients and healthy control subjects (n=5). Results: Post-MI patients showed impaired exercise tolerance and ventilatory efficiency in CPET analysis. Compared with controls, circulating levels of miR-181a and 181c were gradually and significantly elevated through the 1st to 7th days after acute MI, whereas miR-181b and miR-484 were not. Circulating miR levels did not correlate with clinical or echocardiographic parameters. However, circulating levels of miR-181c and miR-484 on the 7th day showed significant positive correlations with the anaerobic threshold and peak oxygen consumption from CPET analysis. Moreover, miR-181c levels were inversely associated with the ventilatory inefficiency index. Patients with high exercise capacity after MI showed significantly higher expressions of circulating miR-181c and miR-484 than those with low exercise capacity. Conclusions: The results of this pilot study suggest that circulating levels of miR-181c and miR-484 after acute MI may be predictive biomarkers of post-MI cardiorespiratory fitness.
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Affiliation(s)
- Ryo Miyazawa
- Center for Rehabilitation, Showa University Fujigaoka Rehabilitation Hospital, Yokohama, Japan.,Showa University Graduate School of Health Sciences, Yokohama, Japan
| | - Yoshitaka Iso
- Division of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Japan.,Division of Cardiology, Showa University Fujigaoka Rehabilitation Hospital, Yokohama, Japan
| | - Miki Tsujiuchi
- Division of Cardiology, Showa University Fujigaoka Rehabilitation Hospital, Yokohama, Japan
| | - Makoto Shoji
- Division of Cardiology, Showa University Fujigaoka Rehabilitation Hospital, Yokohama, Japan
| | | | - Shinji Koba
- Division of Cardiology, Department of Medicine, Showa University Hospital, Tokyo, Japan
| | - Mio Ebato
- Division of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Tetsuo Miyagawa
- Showa University Graduate School of Health Sciences, Yokohama, Japan
| | - Eiichi Geshi
- Showa University Graduate School of Health Sciences, Yokohama, Japan
| | - Hiroshi Suzuki
- Division of Cardiology, Department of Internal Medicine, Showa University Fujigaoka Hospital, Yokohama, Japan
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7
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Sapp RM, Landers-Ramos RQ, Shill DD, Springer CB, Hagberg JM. Sex-specific alterations in blood-borne factors in physically inactive individuals are detrimental to endothelial cell functions. J Appl Physiol (1985) 2020; 129:664-674. [PMID: 32730175 DOI: 10.1152/japplphysiol.00292.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Mechanisms underlying the protective effects of both habitual endurance exercise and the female sex on vascular function are incompletely understood. Blood-borne circulating factors, such as circulating microRNAs (ci-miRs), may partially explain these effects. Blood samples were obtained from young, healthy men and women who either habitually performed endurance exercise (endurance trained) or were relatively inactive (sedentary). Women were tested during the early follicular phase of the menstrual cycle or the placebo pill phase of oral contraceptive to control for estrogen. Cultured human umbilical vein endothelial cells (HUVECs) were exposed to participants' serum in migration, proliferation, and reactive oxygen species (ROS) assays. Real-time quantitative polymerase chain reaction was used to quantify an initial array of 84 cardiovascular disease (CVD)-related ci-miRs, followed by validation of 10 ci-miRs. All participants were devoid of traditional CVD risk factors, and circulating estradiol concentration was not different between groups. Serum of endurance-trained women induced greater HUVEC migration compared with serum of sedentary women. HUVEC ROS production was greater in response to serum of sedentary men compared with serum of endurance-trained men and sedentary women. There were sex effects on the levels of nine ci-miRs, with greater levels in men, while ci-miRs-140-5p and 145-5p were also higher in sedentary compared with endurance-trained men and/or women. In a sex-specific manner, habitual endurance exercise was associated with beneficial effects of serum on HUVECs. Thus, alterations in circulating factors may contribute to the protective effects of habitual endurance exercise on vascular health. Additionally, sex had a greater impact than habitual activity level on the levels of vascular-related ci-miRs.NEW & NOTEWORTHY Serum from sedentary women caused impaired endothelial migration, whereas serum from sedentary men elicited increased endothelial reactive oxygen species production as compared with serum from their endurance-trained counterparts. Select CVD-related circulating microRNAs (ci-miRs) were higher in men than women, while ci-miRs-140-5p and 145-5p were also higher in sedentary versus trained men and/or women. Our data suggest that alterations in circulating factors may contribute to the protective effects of habitual exercise and sex on vascular health.
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Affiliation(s)
- Ryan M Sapp
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
| | | | - Daniel D Shill
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
| | - Catherine B Springer
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
| | - James M Hagberg
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
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8
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Zhou Q, Shi C, Lv Y, Zhao C, Jiao Z, Wang T. Circulating microRNAs in Response to Exercise Training in Healthy Adults. Front Genet 2020; 11:256. [PMID: 32256529 PMCID: PMC7093586 DOI: 10.3389/fgene.2020.00256] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/03/2020] [Indexed: 01/05/2023] Open
Abstract
Circulating microRNAs (miRNAs, miRs) have great potential as cardiac biomarkers and they are also being explored for their roles in intercellular communication and gene expression regulation. The analysis of circulating miRNAs in response to exercise would provide a deeper understanding of the molecular response to physical activity and valuable information for clinical practice. Here, eight male college students were recruited to participate in cardiopulmonary exercise testing (CPET) and 1 h acute exercise training (AET). Blood samples were collected and serum miRNAs involved in angiogenesis, inflammation and enriched in muscle and/or cardiac tissues were analyzed before and after cardiopulmonary exercise and acute exercise. The miRNAs we detected were miR-1, miR-20a, miR-21, miR-126, miR-133a, miR-133b, miR-146, miR155, miR-208a, miR-208b, miR-210, miR-221, miR-222, miR-328, miR-378, miR-499, and miR-940. We found that serum miR-20a was decreased significantly after CPET and serum miR-21 was increased after AET. In addition, no robust correlation was identified between the changes of these miRNAs and makers of cardiac function and exercise capacity, which indicates a distinct adaptation of these miRNAs to exercise. Future studies are highly needed to define the potential use of these circulating miRNAs as useful biomarkers of exercise training, and disclose the biological function of circulating miRNAs as physiological mediators of exercise-induced cardiovascular adaptation.
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Affiliation(s)
- Qiulian Zhou
- Shanghai Applied Radiation Institute, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Sciences, Shanghai University, Shanghai, China
| | - Chao Shi
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Sciences, Shanghai University, Shanghai, China
| | - Yicheng Lv
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Sciences, Shanghai University, Shanghai, China
| | - Chenglin Zhao
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Sciences, Shanghai University, Shanghai, China
| | - Zheng Jiao
- Shanghai Applied Radiation Institute, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, China
| | - Tianhui Wang
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Sciences, Shanghai University, Shanghai, China
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9
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Sapp RM, Evans WS, Eagan LE, Chesney CA, Zietowski EM, Prior SJ, Ranadive SM, Hagberg JM. The effects of moderate and high-intensity exercise on circulating markers of endothelial integrity and activation in young, healthy men. J Appl Physiol (1985) 2019; 127:1245-1256. [PMID: 31487226 DOI: 10.1152/japplphysiol.00477.2019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Endothelial function typically exhibits a hormetic response to exercise. It is unknown whether endothelial damage occurs in response to acute exercise and could be a contributing mechanism. We sought to determine the effects of acute exercise on endothelial-derived circulating factors proposed to reflect endothelial integrity and activation. Young, healthy men (n = 10) underwent 30-min moderate continuous (MOD) and high-intensity interval (HII) cycling exercise bouts. Venous blood samples were taken immediately before and after exercise for quantification of circulating endothelial cells (CECs), circulating angiogenic cells (CACs), apoptotic and activated endothelial microvesicles (EMVs), thrombomodulin (TM), von Willebrand factor (vWF), syndecan-1, and circulating microRNAs (ci-miRs) 126-3p and 126-5p. Endothelial function was assessed by flow-mediated dilation (FMD) of the brachial artery before, 10 min after, and 60 min after exercise. Numbers of CECs and EMVs were unchanged by either exercise bout (P > 0.05). Numbers of all measured CAC subtypes decreased in response to MOD (21%-34%, P < 0.05), whereas only CD31+/34+/45dim/- CACs decreased following HII (21%, P < 0.05). TM and syndecan-1 increased with both exercise intensities (both ~20%, P < 0.05). HII, but not MOD, increased vWF (88%, P < 0.001), ci-miR-126-3p (92%, P = 0.009) and ci-miR-126-5p (110%, P = 0.01). The changes in several circulating factors correlated with changes in FMD following either one or both intensities. Changes in circulating factors do not support the concept of exercise-induced endothelial cell denudation, apoptosis, or activation, though slight disruption of endothelial glycocalyx and membrane integrity may occur. A related loss of mechanotransduction along with mechanisms underlying endothelial activation and ci-miR-126 secretion may relate to changes in endothelial function.NEW & NOTEWORTHY Using circulating endothelial-derived factors, we show that endothelial denudation, apoptosis, and activation do not appear to increase, whereas disrupted endothelial glycocalyx and membrane integrity may occur during both high-intensity interval and moderate intensity cycling. Increases in factors nonspecific to endothelial damage, including von Willebrand factor and microRNA-126, occurred only after high-intensity interval exercise. These results shed light on the hypothesis that disrupted endothelial integrity contributes to the endothelial function response to exercise.
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Affiliation(s)
- Ryan M Sapp
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
| | - William S Evans
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
| | - Lauren E Eagan
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
| | - Catalina A Chesney
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
| | - Evelyn M Zietowski
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland.,Department of Biology, University of Maryland, College Park, Maryland
| | - Steven J Prior
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland.,Baltimore Veterans Affairs Geriatric Research, Education and Clinical Center, Baltimore, Maryland
| | - Sushant M Ranadive
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
| | - James M Hagberg
- Department of Kinesiology, School of Public Health, University of Maryland, College Park, Maryland
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10
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Sapp RM, Shill DD, Dash C, Hicks JC, Adams‐Campbell LL, Hagberg JM. Circulating microRNAs and endothelial cell migration rate are associated with metabolic syndrome and fitness level in postmenopausal African American women. Physiol Rep 2019; 7:e14173. [PMID: 31347282 PMCID: PMC6658676 DOI: 10.14814/phy2.14173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 06/13/2019] [Indexed: 01/06/2023] Open
Abstract
Postmenopausal African American women are at elevated risk for metabolic syndrome (MetS), which predisposes them to cardiovascular disease and other chronic diseases. Circulating microRNAs (ci-miR) are potential mediators of cardiometabolic diseases also impacted by cardiorespiratory fitness (CRF) level. Using real-time quantitative PCR, we compared the expression of vascular-related ci-miRs (miR-21-5p, miR-92a-3p, miR-126-5p, miR-146a-5p, miR-150-5p, miR-221-3p) in sedentary, overweight/obese, postmenopausal African American women based on 1) presence (n = 31) or absence (n = 42) of MetS and 2) CRF level (VO2peak ) (Very Low < 18.0 mL·kg-1 ·min-1 [n = 31], Low = 18.0-22.0 mL·kg-1 ·min-1 [n = 24], or Moderate >22.0 mL·kg-1 ·min-1 [n = 18]). Endothelial migration rate in response to subjects' serum was assessed to determine the effect of circulating blood-borne factors on endothelial repair. Ci-miR-21-5p was the only ci-miR that differed between women with MetS compared to those without MetS (0.93 ± 0.43 vs. 1.28 ± 0.71, P = 0.03). There were borderline significant differences (P = 0.06-0.09) in ci-miR-21-5p, 126-5p, and 221-3p levels between the CRF groups, and these three ci-miRs correlated with VO2peak (r = -0.25 to -0.28, P < 0.05). Endothelial migration rate was impaired in response to serum from women with MetS compared to those without after 16-24 h. Serum from women with Moderate CRF induced greater endothelial migration than the Very Low and Low CRF groups after 4 and 16-24 h, that was also not different from a young, healthy reference group. Ci-miR-21-5p is lower in postmenopausal African American women with MetS, while ci-miRs-21-5p, 126-5p, and 221-3p are associated with CRF. Factors which impair endothelial cell migration rate are present in serum of women with MetS, though having Moderate CRF may be protective.
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Affiliation(s)
- Ryan M. Sapp
- Department of Kinesiology, School of Public HealthUniversity of MarylandCollege ParkMaryland
| | - Daniel D. Shill
- Department of Kinesiology, School of Public HealthUniversity of MarylandCollege ParkMaryland
| | - Chiranjeev Dash
- Georgetown Lombardi Comprehensive Cancer Center, Office of Minority Health & Health Disparities ResearchWashingtonDistrict of Columbia
| | - Jennifer C. Hicks
- Georgetown Lombardi Comprehensive Cancer Center, Office of Minority Health & Health Disparities ResearchWashingtonDistrict of Columbia
| | - Lucile L. Adams‐Campbell
- Georgetown Lombardi Comprehensive Cancer Center, Office of Minority Health & Health Disparities ResearchWashingtonDistrict of Columbia
| | - James M. Hagberg
- Department of Kinesiology, School of Public HealthUniversity of MarylandCollege ParkMaryland
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