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Ding N, Sun X, Yu Q, Hong H, Luo Y, Tan Y. Unlocking the secrets of crude myofibril-bound serine protease from grass carp: The role in degrading myofibrillar proteins. Food Chem 2024; 437:137844. [PMID: 37918161 DOI: 10.1016/j.foodchem.2023.137844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 10/06/2023] [Accepted: 10/23/2023] [Indexed: 11/04/2023]
Abstract
Grass carp (Ctenopharyngodon idella) are used as raw material for conventional surimi products in Southern China. However, endogenous serine proteases deteriorated the texture of the surimi gel. To unlock the mechanism behind, the present study isolated the crude myofibril-bound serine protease (cMBSP) in grass carp and studied its effects on surimi gel. The cMBSP activity was the highest at 40 °C and pH 8.0, and it remained stable at 20-55 °C neutral pH. Additionally, it was susceptible to serine protease inhibitors and high concentrations of Na+. The maximum degradation of myosin heavy chain by cMBSP was observed at 50 °C. Protein unc-45 homolog B (a myosin chaperone) is one of the apparent degradation products according to mass spectrometry. The cMBSP caused lower water holding capacity and deteriorated texture in the surimi gel. This study expanded insights about the mechanism of surimi gel degradation by cMBSP, which provided theoretical basis for enhancing surimi quality.
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Affiliation(s)
- Ning Ding
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xiaoyue Sun
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Qinye Yu
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Hui Hong
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yongkang Luo
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yuqing Tan
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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Xu J, Ma J, Zeng Y, Si H, Wu Y, Zhang S, Shen B. Transcriptome-wide association study identifies novel genes associated with bone mineral density and lean body mass in children. Endocrine 2023; 79:400-409. [PMID: 36572794 PMCID: PMC9892108 DOI: 10.1007/s12020-022-03225-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 10/05/2022] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To identify novel candidate genes whose expression is associated with bone mineral density (BMD) and body lean mass (LM) in children. METHODS A tissue-specific transcriptome-wide association study (TWAS) was conducted utilizing a large-scale genome-wide association study (GWAS) dataset associated with BMD and LM and involving 10,414 participants. The measurement of BMD and LM phenotypes was made based on total-body dual-energy X-ray absorptiometry (TB-DXA) scans. TWAS was conducted by using FUSION software. Reference panels for muscle skeleton (MS), peripheral blood (NBL) and whole blood (YBL) were used for TWAS analysis. Functional enrichment and protein-protein interaction (PPI) analyses of the genes identified by TWAS were performed by using the online tool Metascape ( http://metascape.org ). RESULTS For BMD, we identified 174 genes with P < 0.05, such as IKZF1 (P = 1.46 × 10-9) and CHKB (P = 8.31 × 10-7). For LM, we identified 208 genes with P < 0.05, such as COPS5 (P = 3.03 × 10-12) and MRPS33 (P = 5.45 × 10-10). Gene ontology (GO) enrichment analysis of the BMD-associated genes revealed 200 GO terms, such as protein catabolic process (Log P = -5.09) and steroid hormone-mediated signaling pathway (Log P = -3.13). GO enrichment analysis of the LM-associated genes detected 287 GO terms, such as the apoptotic signaling pathway (Log P = -8.08) and lipid storage (Log P = -3.55). CONCLUSION This study identified several candidate genes for BMD and LM in children, providing novel clues to the genetic mechanisms underlying the development of childhood BMD and LM.
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Affiliation(s)
- Jiawen Xu
- Orthopedic Research Institute, Department of Orthopedics, Sichuan University West China Hospital, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Jun Ma
- Orthopedic Research Institute, Department of Orthopedics, Sichuan University West China Hospital, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Yi Zeng
- Orthopedic Research Institute, Department of Orthopedics, Sichuan University West China Hospital, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Haibo Si
- Orthopedic Research Institute, Department of Orthopedics, Sichuan University West China Hospital, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Yuangang Wu
- Orthopedic Research Institute, Department of Orthopedics, Sichuan University West China Hospital, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Shaoyun Zhang
- Orthopedic Research Institute, Department of Orthopedics, Sichuan University West China Hospital, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Bin Shen
- Orthopedic Research Institute, Department of Orthopedics, Sichuan University West China Hospital, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China.
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A multistrain probiotic reduces sarcopenia by modulating Wnt signaling biomarkers in patients with chronic heart failure. J Cardiol 2022; 80:449-455. [PMID: 35750555 DOI: 10.1016/j.jjcc.2022.06.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/27/2022] [Accepted: 05/30/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND The muscle decline due to aging, called sarcopenia and functional compromise, are common occurrences in patients with chronic heart failure (CHF). Intestinal dysbiosis and the alterations in Wnt signaling may partly account for these findings. We investigated the effects of a multistrain probiotic on Wnt signaling biomarkers and their associations with sarcopenia and functional capacity in CHF patients. METHODS The CHF patients were randomized into placebo (n = 48) and probiotic (n = 44) groups for 12 weeks. We measured circulating markers of intestinal permeability (zonulin) and Wnt signaling (dickkopf-1, Dkk-1; dickkopf-3, Dkk-3), and sterol regulatory element-binding protein-1 (SREBP1), handgrip strength (HGS), and short physical performance battery (SPPB) scores at baseline and after probiotics treatment. RESULTS Probiotics treatment improved HGS, gait speed, and plasma Dkk-1, and reduced plasma zonulin, Dkk-3, and SREBP1 in CHF patients (all p < 0.05). Among sarcopenia indexes, HGS showed robust correlations with the three Wnt biomarkers (all p < 0.05). Probiotic treatment also improved the SPPB scores in CHF patients, which were strongly correlated with Dkk-3, followed by Dkk-1, and SREBP1 (all p < 0.05). SREBP1 and Dkk-3 demonstrated significant potential in diagnosing sarcopenia in CHF patients. Probiotics also reduced the plasma markers of inflammation and oxidative stress in CHF patients. CONCLUSION The multistrain probiotic reduces sarcopenia and improves functional capacity in CHF patients by modulating Wnt signaling.
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Liang S, Liu X, Zhao J, Liu R, Huang X, Liu Y, Yang X, Yang X. Effects of high-dose folic acid on protein metabolism in breast muscle and performance of broilers. Poult Sci 2022; 101:101935. [PMID: 35961252 PMCID: PMC9382563 DOI: 10.1016/j.psj.2022.101935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 04/24/2022] [Accepted: 04/26/2022] [Indexed: 11/19/2022] Open
Abstract
Attaining the optimal feed conversion ratio is the unaltered goal for poultry breeding, meat yield is one of the vital reference indexes for that. Folic acid is involved in protein metabolism by acting as a transmitter of one carbon unit, and the detail mechanism for the high-dose folic acid on growth of broiler skeletal muscle is still unclarified. The present study was conducted to investigate the effect and regulatory mechanism of folic acid on deposition and metabolism of protein in broiler breast muscle. A total of 196 one-day-old AA broilers were randomly assigned to 2 treatment groups. The chicks were fed corn-soybean diet with folic acid levels of 1.3 mg/kg (CON) or 13 mg/kg (FA), respectively. The results showed that high dose of folic acid significantly increased the body weight gain, average daily gain, average daily feed intake, and feed conversion ratio of broilers during 1 to 42 d. Compared with control group, folic acid statistically augmented the breast muscle ratio of broilers at 42 d, abdominal fat percentage was also decreased in FA group. Folic acid significantly increased the gene expression of folate receptor (FR) in duodenum and jejunum at 21 d, and its relative expression in jejunum of broilers at 42 d. Furthermore, relative expression of myogenin in broiler breast muscle was upregulated in folic acid group. Folic acid supplementation significantly enhanced the protein expression of phosphorylated serine/threonine kinase (AKT) and ribosomal protein S6 kinase 1 (S6K1) in the breast muscle of broilers at 21 d and 42 d. In conclusion, the results proved that high-dose folic acid activated the AKT/mammalian target of rapamycin (mTOR) pathway and increased the activity of phosphorylation of S6K1, thereby regulating the protein deposition in breast muscle. Meanwhile, the gene expression of the myogenic determinant factor was upregulated by folic acid and then promoted the growth of breast muscle. Consequently, the growth performance, meat production and feeding efficiency were improved of broilers by adding folic acid at 13 mg/kg.
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Affiliation(s)
- Saisai Liang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Xinshuai Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Jianfei Zhao
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Rui Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Xinhuo Huang
- Nano Vitamin Engineering Research Center of Shaanxi Province, Xi'an, China
| | - Yanli Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Xiaojun Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Xin Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China.
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Shochat C, Wang Z, Mo C, Nelson S, Donaka R, Huang J, Karasik D, Brotto M. Deletion of SREBF1, a Functional Bone-Muscle Pleiotropic Gene, Alters Bone Density and Lipid Signaling in Zebrafish. Endocrinology 2021; 162:5929645. [PMID: 33068391 PMCID: PMC7745669 DOI: 10.1210/endocr/bqaa189] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Indexed: 12/30/2022]
Abstract
Through a genome-wide analysis of bone mineral density (BMD) and muscle mass, identification of a signaling pattern on 17p11.2 recognized the presence of sterol regulatory element-binding factor 1 (SREBF1), a gene responsible for the regulation of lipid homeostasis. In conjunction with lipid-based metabolic functions, SREBF1 also codes for the protein, SREBP-1, a transcription factor known for its role in adipocyte differentiation. We conducted a quantitative correlational study. We established a zebrafish (ZF) SREBF1 knockout (KO) model and used a targeted customized lipidomics approach to analyze the extent of SREBF1 capabilities. For lipidomics profiling, we isolated the dorsal muscles of wild type (WT) and KO fishes, and we performed liquid chromatography-tandem mass spectrometry screening assays of these samples. In our analysis, we profiled 48 lipid mediators (LMs) derived from various essential polyunsaturated fatty acids to determine potential targets regulated by SREBF1, and we found that the levels of 11,12 epoxyeicosatrienoic acid (11,12-EET) were negatively associated with the number of SREBF1 alleles (P = 0.006 for a linear model). We also compared gene expression between KO and WT ZF by genome-wide RNA-sequencing. Significantly enriched pathways included fatty acid elongation, linoleic acid metabolism, arachidonic acid metabolism, adipocytokine signaling, and DNA replication. We discovered trends indicating that BMD in adult fish was significantly lower in the KO than in the WT population (P < 0.03). These studies reinforce the importance of lipidomics investigation by detailing how the KO of SREBF1 affects both BMD and lipid-signaling mediators, thus confirming the importance of SREBF1 for musculoskeletal homeostasis.
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Affiliation(s)
- Chen Shochat
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Zhiying Wang
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
| | - Chenglin Mo
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
| | - Sarah Nelson
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
| | | | - Jian Huang
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
| | - David Karasik
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
- Correspondence: David Karasik, Azrieli Faculty of Medicine, Bar-Ilan university, Safed, 1311502, Israel. E-mail:
| | - Marco Brotto
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
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Bagley JR, Burghardt KJ, McManus R, Howlett B, Costa PB, Coburn JW, Arevalo JA, Malek MH, Galpin AJ. Epigenetic Responses to Acute Resistance Exercise in Trained vs. Sedentary Men. J Strength Cond Res 2020; 34:1574-1580. [PMID: 32459413 DOI: 10.1519/jsc.0000000000003185] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Bagley, JR, Burghardt, KJ, McManus, R, Howlett, B, Costa, PB, Coburn, JW, Arevalo, JA, Malek, MH, and Galpin, AJ. Epigenetic responses to acute resistance exercise in trained vs. sedentary men. J Strength Cond Res 34(6): 1574-1580, 2020-Acute resistance exercise (RE) alters DNA methylation, an epigenetic process that influences gene expression and regulates skeletal muscle adaptation. This aspect of cellular remodeling is poorly understood, especially in resistance-trained (RT) individuals. The study purpose was to examine DNA methylation in response to acute RE in RT and sedentary (SED) young men, specifically targeting genes responsible for metabolic, inflammatory, and hypertrophic muscle adaptations. Vastus lateralis biopsies were performed before (baseline), 30 minutes after, and 4 hours after an acute RE bout (3 × 10 repetitions at 70% 1 repetition maximum [1RM] leg press and leg extension) in 11 RT (mean ± SEM: age = 26.1 ± 1.0 years; body mass = 84.3 ± 0.2 kg; leg press 1RM = 412.6 ± 25.9 kg) and 8 SED (age = 22.9 ± 1.1 years; body mass = 75.6 ± 0.3 kg; leg press 1RM = 164.8 ± 22.5 kg) men. DNA methylation was analyzed through methylation sensitive high-resolution melting using real-time polymerase chain reaction. Separate 2 (group) × 3 (time) repeated-measures analyses of variance and analyses of covariance were performed to examine changes in DNA methylation for each target gene. Results showed that acute RE (a) hypomethylated LINE-1 (measure of global methylation) in RT but not SED, (b) hypermethylated metabolic genes (GPAM and SREBF2) in RT, while lowering SREBF2 methylation in SED, and (c) did not affect methylation of genes associated with inflammation (IL-6 and TNF-α) or hypertrophy (mTOR and AKT1). However, basal IL-6 and TNF-α were lower in SED compared with RT. These findings indicate the same RE stimulus can illicit different epigenetic responses in RT vs. SED men and provides a molecular mechanism underpinning the need for differential training stimuli based on subject training backgrounds.
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Affiliation(s)
- James R Bagley
- Department of Kinesiology, Muscle Physiology Laboratory, San Francisco State University, San Francisco, California
| | - Kyle J Burghardt
- Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, Michigan
| | - Ryan McManus
- Department of Kinesiology, Biochemistry and Molecular Exercise Physiology Laboratory, Center for Sport Performance, California State University, Fullerton, California; and
| | - Bradley Howlett
- Department of Pharmacy Practice, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, Michigan
| | - Pablo B Costa
- Department of Kinesiology, Biochemistry and Molecular Exercise Physiology Laboratory, Center for Sport Performance, California State University, Fullerton, California; and
| | - Jared W Coburn
- Department of Kinesiology, Biochemistry and Molecular Exercise Physiology Laboratory, Center for Sport Performance, California State University, Fullerton, California; and
| | - Jose A Arevalo
- Department of Kinesiology, Biochemistry and Molecular Exercise Physiology Laboratory, Center for Sport Performance, California State University, Fullerton, California; and
| | - Moh H Malek
- Integrative Physiology of Exercise Laboratory, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, Michigan
| | - Andrew J Galpin
- Department of Kinesiology, Biochemistry and Molecular Exercise Physiology Laboratory, Center for Sport Performance, California State University, Fullerton, California; and
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Wu H, Jang J, Dridi S, Ferrando AA, Wolfe RR, Kim IY, Baum JI. Net protein balance correlates with expression of autophagy, mitochondrial biogenesis, and fat metabolism-related genes in skeletal muscle from older adults. Physiol Rep 2020; 8:e14575. [PMID: 33063954 PMCID: PMC7556313 DOI: 10.14814/phy2.14575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 08/14/2020] [Accepted: 08/15/2020] [Indexed: 12/12/2022] Open
Abstract
The mechanisms leading to sarcopenia, the main cause for frailty in older adults, are still unclear. Autophagy and the ubiquitin-proteasome system (UPS) may play a role in mediating muscle protein breakdown related to sarcopenia. In addition to loss of muscle mass, compromised muscle performance observed in sarcopenic patients has been linked to muscle mitochondria dysfunction. Increased fat deposition and fat cell infiltration in muscle frequently seen in skeletal muscle of older adults may play an additional role for the pathogenesis of sarcopenia. Therefore, the first objective of this study was to understand differences in expression of genes related to autophagy, UPS, mitochondrial biogenesis, and fat metabolism in skeletal muscle of older adults compared with young adults. Our second objective was to determine the correlation between whole body protein kinetics (WBPK) and gene expression with age. Real-time quantitative PCR was used to determine the relative expression of targeted genes, and hierarchical regression analysis was used to determine if age had a moderating effect on the correlation between expression of targeted genes and WBPK. Increases in the expression of autophagy-related genes and fat metabolism-related genes were observed in muscle of older adults compared with young adults. In addition, age enhanced the negative correlations between mitochondrial biogenesis genes and net protein balance. These results suggest that dysregulated gene expression of mitochondrial biogenesis could play a role in muscle loss in older adults.
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Affiliation(s)
- Hexirui Wu
- Center for Human Nutrition, Department of Food Science, University of Arkansas, Fayetteville, AR, USA
| | - Jiwoong Jang
- Korea Mouse Metabolic Phenotyping Center, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon, Republic of Korea
| | - Sami Dridi
- Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR, USA
| | - Arny A Ferrando
- Department of Geriatrics, Center for Translational Research in Aging and Longevity, Donald W. Reynolds Institute on Aging, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Robert R Wolfe
- Department of Geriatrics, Center for Translational Research in Aging and Longevity, Donald W. Reynolds Institute on Aging, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Il-Young Kim
- Korea Mouse Metabolic Phenotyping Center, Lee Gil Ya Cancer and Diabetes Institute, College of Medicine, Gachon University, Incheon, Republic of Korea
- Department of Molecular Medicine, College of Medicine, Gachon University, Incheon, Republic of Korea
| | - Jamie I Baum
- Center for Human Nutrition, Department of Food Science, University of Arkansas, Fayetteville, AR, USA
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Dietary Complex and Slow Digestive Carbohydrates Prevent Fat Deposits During Catch-Up Growth in Rats. Nutrients 2020; 12:nu12092568. [PMID: 32854204 PMCID: PMC7551611 DOI: 10.3390/nu12092568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/21/2020] [Accepted: 08/22/2020] [Indexed: 01/10/2023] Open
Abstract
A nutritional growth retardation study, which closely resembles the nutritional observations in children who consumed insufficient total energy to maintain normal growth, was conducted. In this study, a nutritional stress in weanling rats placed on restricted balanced diet for 4 weeks is produced, followed by a food recovery period of 4 weeks using two enriched diets that differ mainly in the slow (SDC) or fast (RDC) digestibility and complexity of their carbohydrates. After re-feeding with the RDC diet, animals showed the negative effects of an early caloric restriction: an increase in adiposity combined with poorer muscle performance, insulin resistance and, metabolic inflexibility. These effects were avoided by the SDC diet, as was evidenced by a lower adiposity associated with a decrease in fatty acid synthase expression in adipose tissue. The improved muscle performance of the SDC group was based on an increase in myocyte enhancer factor 2D (MEF2D) and creatine kinase as markers of muscle differentiation as well as better insulin sensitivity, enhanced glucose uptake, and increased metabolic flexibility. In the liver, the SDC diet promoted glycogen storage and decreased fatty acid synthesis. Therefore, the SDC diet prevents the catch-up fat phenotype through synergistic metabolic adaptations in adipose tissue, muscle, and liver. These coordinated adaptations lead to better muscle performance and a decrease in the fat/lean ratio in animals, which could prevent long-term negative metabolic alterations such as obesity, insulin resistance, dyslipidemia, and liver fat deposits later in life.
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Luu BE, Lefai E, Giroud S, Swenson JE, Chazarin B, Gauquelin-Koch G, Arnemo JM, Evans AL, Bertile F, Storey KB. MicroRNAs facilitate skeletal muscle maintenance and metabolic suppression in hibernating brown bears. J Cell Physiol 2020; 235:3984-3993. [PMID: 31643088 DOI: 10.1002/jcp.29294] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 09/30/2019] [Indexed: 02/06/2023]
Abstract
Hibernating brown bears, Ursus arctos, undergo extended periods of inactivity and yet these large hibernators are resilient to muscle disuse atrophy. Physiological characteristics associated with atrophy resistance in bear muscle have been examined (e.g., muscle mechanics, neural activity) but roles for molecular signaling/regulatory mechanisms in the resistance to muscle wasting in bears still require investigation. Using quantitative reverse transcription PCR (RT-qPCR), the present study characterized the responses of 36 microRNAs linked with development, metabolism, and regeneration of skeletal muscle, in the vastus lateralis of brown bears comparing winter hibernating and summer active animals. Relative levels of mRNA of selected genes (mef2a, pax7, id2, prkaa1, and mstn) implicated upstream and downstream of the microRNAs were examined. Results indicated that hibernation elicited a myogenic microRNA, or "myomiR", response via MEF2A-mediated signaling. Upregulation of MEF2A-controlled miR-1 and miR-206 and respective downregulation of pax7 and id2 mRNA are suggestive of responses that promote skeletal muscle maintenance. Increased levels of metabolic microRNAs, such as miR-27, miR-29, and miR-33, may facilitate metabolic suppression during hibernation via mechanisms that decrease glucose uptake and fatty acid oxidation. This study identified myomiR-mediated mechanisms for the promotion of muscle regeneration, suppression of ubiquitin ligases, and resistance to muscle atrophy during hibernation mediated by observed increases in miR-206, miR-221, miR-31, miR-23a, and miR-29b. This was further supported by the downregulation of myomiRs associated with a muscle injury and inflammation (miR-199a and miR-223) during hibernation. The present study provides evidence of myomiR-mediated signaling pathways that are activated during hibernation to maintain skeletal muscle functionality in brown bears.
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Affiliation(s)
- Bryan E Luu
- Department of Biology, Carleton University, Ottawa, Canada
- Faculty of Medicine, McGill University, Montréal, Québec, Canada
| | - Etienne Lefai
- Université d'Auvergne, INRA, Unité de Nutrition Humaine, Clermont-Ferrand, France
| | - Sylvain Giroud
- Research Institute of Wildlife Ecology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Jon E Swenson
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
- Norwegian Institute for Nature Research, Trondheim, Norway
| | - Blandine Chazarin
- Centre National d'Etudes Spatiales, CNES, Paris, France
- Université de Strasbourg, CNRS, IPHC, Strasbourg, France
| | | | - Jon M Arnemo
- Department of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Koppang, Norway
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Alina L Evans
- Department of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Koppang, Norway
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Excess Accumulation of Lipid Impairs Insulin Sensitivity in Skeletal Muscle. Int J Mol Sci 2020; 21:ijms21061949. [PMID: 32178449 PMCID: PMC7139950 DOI: 10.3390/ijms21061949] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/09/2020] [Accepted: 03/10/2020] [Indexed: 12/12/2022] Open
Abstract
Both glucose and free fatty acids (FFAs) are used as fuel sources for energy production in a living organism. Compelling evidence supports a role for excess fatty acids synthesized in intramuscular space or dietary intermediates in the regulation of skeletal muscle function. Excess FFA and lipid droplets leads to intramuscular accumulation of lipid intermediates. The resulting downregulation of the insulin signaling cascade prevents the translocation of glucose transporter to the plasma membrane and glucose uptake into skeletal muscle, leading to metabolic disorders such as type 2 diabetes. The mechanisms underlining metabolic dysfunction in skeletal muscle include accumulation of intracellular lipid derivatives from elevated plasma FFAs. This paper provides a review of the molecular mechanisms underlying insulin-related signaling pathways after excess accumulation of lipids.
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11
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Chazarin B, Storey KB, Ziemianin A, Chanon S, Plumel M, Chery I, Durand C, Evans AL, Arnemo JM, Zedrosser A, Swenson JE, Gauquelin-Koch G, Simon C, Blanc S, Lefai E, Bertile F. Metabolic reprogramming involving glycolysis in the hibernating brown bear skeletal muscle. Front Zool 2019; 16:12. [PMID: 31080489 PMCID: PMC6503430 DOI: 10.1186/s12983-019-0312-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/08/2019] [Indexed: 12/17/2022] Open
Abstract
Background In mammals, the hibernating state is characterized by biochemical adjustments, which include metabolic rate depression and a shift in the primary fuel oxidized from carbohydrates to lipids. A number of studies of hibernating species report an upregulation of the levels and/or activity of lipid oxidizing enzymes in muscles during torpor, with a concomitant downregulation for glycolytic enzymes. However, other studies provide contrasting data about the regulation of fuel utilization in skeletal muscles during hibernation. Bears hibernate with only moderate hypothermia but with a drop in metabolic rate down to ~ 25% of basal metabolism. To gain insights into how fuel metabolism is regulated in hibernating bear skeletal muscles, we examined the vastus lateralis proteome and other changes elicited in brown bears during hibernation. Results We show that bear muscle metabolic reorganization is in line with a suppression of ATP turnover. Regulation of muscle enzyme expression and activity, as well as of circulating metabolite profiles, highlighted a preference for lipid substrates during hibernation, although the data suggested that muscular lipid oxidation levels decreased due to metabolic rate depression. Our data also supported maintenance of muscle glycolysis that could be fuelled from liver gluconeogenesis and mobilization of muscle glycogen stores. During hibernation, our data also suggest that carbohydrate metabolism in bear muscle, as well as protein sparing, could be controlled, in part, by actions of n-3 polyunsaturated fatty acids like docosahexaenoic acid. Conclusions Our work shows that molecular mechanisms in hibernating bear skeletal muscle, which appear consistent with a hypometabolic state, likely contribute to energy and protein savings. Maintenance of glycolysis could help to sustain muscle functionality for situations such as an unexpected exit from hibernation that would require a rapid increase in ATP production for muscle contraction. The molecular data we report here for skeletal muscles of bears hibernating at near normal body temperature represent a signature of muscle preservation despite atrophying conditions.
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Affiliation(s)
- Blandine Chazarin
- 1Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France.,10Centre National d'Etudes Spatiales, CNES, F-75001 Paris, France
| | - Kenneth B Storey
- 2Department of Biology, Carleton University, Ottawa, ON K1S 5B6 Canada
| | - Anna Ziemianin
- 1Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France.,10Centre National d'Etudes Spatiales, CNES, F-75001 Paris, France
| | - Stéphanie Chanon
- 3CarMen Laboratory, INSERM 1060, INRA 1397, University of Lyon, F-69600 Oullins, France
| | - Marine Plumel
- 1Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - Isabelle Chery
- 1Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - Christine Durand
- 3CarMen Laboratory, INSERM 1060, INRA 1397, University of Lyon, F-69600 Oullins, France
| | - Alina L Evans
- 4Department of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Campus Evenstad, NO-2480 Koppang, Norway
| | - Jon M Arnemo
- 4Department of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, Campus Evenstad, NO-2480 Koppang, Norway.,5Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden
| | - Andreas Zedrosser
- 6Department of Environmental and Health Studies, University College of Southeast Norway, N-3800 Bø, Telemark Norway.,7Institute of Wildlife Biology and Game Management, University of Natural Resources and Life Sciences, A-1180 Vienna, Austria
| | - Jon E Swenson
- 8Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, NO-1432 Ås, Norway.,9Norwegian Institute for Nature Research, NO-7485 Trondheim, Norway
| | | | - Chantal Simon
- 3CarMen Laboratory, INSERM 1060, INRA 1397, University of Lyon, F-69600 Oullins, France
| | - Stephane Blanc
- 1Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - Etienne Lefai
- 3CarMen Laboratory, INSERM 1060, INRA 1397, University of Lyon, F-69600 Oullins, France.,Université d'Auvergne, INRA, UNH UMR1019, F-63122 Saint-Genès Champanelle, France
| | - Fabrice Bertile
- 1Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
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12
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Neuromuscular magnetic stimulation counteracts muscle decline in ALS patients: results of a randomized, double-blind, controlled study. Sci Rep 2019; 9:2837. [PMID: 30808899 PMCID: PMC6391419 DOI: 10.1038/s41598-019-39313-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 01/21/2019] [Indexed: 12/14/2022] Open
Abstract
The aim of the study was to verify whether neuromuscular magnetic stimulation (NMMS) improves muscle function in spinal-onset amyotrophic lateral sclerosis (ALS) patients. Twenty-two ALS patients were randomized in two groups to receive, daily for two weeks, NMMS in right or left arm (referred to as real-NMMS, rNMMS), and sham NMMS (sNMMS) in the opposite arm. All the patients underwent a median nerve conduction (compound muscle action potential, CMAP) study and a clinical examination that included a handgrip strength test and an evaluation of upper limb muscle strength by means of the Medical Research Council Muscle Scale (MRC). Muscle biopsy was then performed bilaterally on the flexor carpi radialis muscle to monitor morpho-functional parameters and molecular changes. Patients and physicians who performed examinations were blinded to the side of real intervention. The primary outcome was the change in the muscle strength in upper arms. The secondary outcomes were the change from baseline in the CMAP amplitudes, in the nicotinic ACh currents, in the expression levels of a selected panel of genes involved in muscle growth and atrophy, and in histomorphometric parameters of ALS muscle fibers. The Repeated Measures (RM) ANOVA with a Greenhouse-Geisser correction (sphericity not assumed) showed a significant effect [F(3, 63) = 5.907, p < 0.01] of rNMMS on MRC scale at the flexor carpi radialis muscle, thus demonstrating that the rNMMS significantly improves muscle strength in flexor muscles in the forearm. Secondary outcomes showed that the improvement observed in rNMMS-treated muscles was associated to counteracting muscle atrophy, down-modulating the proteolysis, and increasing the efficacy of nicotinic ACh receptors (AChRs). We did not observe any significant difference in pre- and post-stimulation CMAP amplitudes, evoked by median nerve stimulation. This suggests that the improvement in muscle strength observed in the stimulated arm is unlikely related to reinnervation. The real and sham treatments were well tolerated without evident side effects. Although promising, this is a proof of concept study, without an immediate clinical translation, that requires further clinical validation.
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13
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Tascher G, Burban A, Camus S, Plumel M, Chanon S, Le Guevel R, Shevchenko V, Van Dorsselaer A, Lefai E, Guguen-Guillouzo C, Bertile F. In-Depth Proteome Analysis Highlights HepaRG Cells as a Versatile Cell System Surrogate for Primary Human Hepatocytes. Cells 2019; 8:E192. [PMID: 30795634 PMCID: PMC6406872 DOI: 10.3390/cells8020192] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/16/2019] [Accepted: 02/18/2019] [Indexed: 12/12/2022] Open
Abstract
Of the hepatic cell lines developed for in vitro studies of hepatic functions as alternatives to primary human hepatocytes, many have lost major liver-like functions, but not HepaRG cells. The increasing use of the latter worldwide raises the need for establishing the reference functional status of early biobanked HepaRG cells. Using deep proteome and secretome analyses, the levels of master regulators of the hepatic phenotype and of the structural elements ensuring biliary polarity were found to be close to those in primary hepatocytes. HepaRG cells proved to be highly differentiated, with functional mitochondria, hepatokine secretion abilities, and an adequate response to insulin. Among differences between primary human hepatocytes and HepaRG cells, the factors that possibly support HepaRG transdifferentiation properties are discussed. The HepaRG cell system thus appears as a robust surrogate for primary hepatocytes, which is versatile enough to study not only xenobiotic detoxification, but also the control of hepatic energy metabolism, secretory function and disease-related mechanisms.
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Affiliation(s)
- Georg Tascher
- Laboratoire de Spectrométrie de Masse BioOrganique, CNRS, IPHC UMR 7178, Université de Strasbourg, F-67087 Strasbourg, France.
- Institute of Biochemistry II, Goethe University Hospital, D-60590 Frankfurt am Main, Germany.
| | - Audrey Burban
- INSERM U1241 NuMeCan, Université de Rennes 1, F-35033 Rennes, France.
| | - Sandrine Camus
- Biopredic International, Parc d'Affaires de la Bretêche, F-35760 St Grégoire, France.
| | - Marine Plumel
- Laboratoire de Spectrométrie de Masse BioOrganique, CNRS, IPHC UMR 7178, Université de Strasbourg, F-67087 Strasbourg, France.
| | - Stéphanie Chanon
- CarMeN Laboratory, INSERM, INRA, University of Lyon, F-69310 Pierre-Bénite, France.
| | - Remy Le Guevel
- ImPACcell platform, Biosit, Université de Rennes 1, F-35043 Rennes, France.
| | - Valery Shevchenko
- Biopredic International, Parc d'Affaires de la Bretêche, F-35760 St Grégoire, France.
| | - Alain Van Dorsselaer
- Laboratoire de Spectrométrie de Masse BioOrganique, CNRS, IPHC UMR 7178, Université de Strasbourg, F-67087 Strasbourg, France.
| | - Etienne Lefai
- CarMeN Laboratory, INSERM, INRA, University of Lyon, F-69310 Pierre-Bénite, France.
| | - Christiane Guguen-Guillouzo
- INSERM U1241 NuMeCan, Université de Rennes 1, F-35033 Rennes, France.
- Biopredic International, Parc d'Affaires de la Bretêche, F-35760 St Grégoire, France.
| | - Fabrice Bertile
- Laboratoire de Spectrométrie de Masse BioOrganique, CNRS, IPHC UMR 7178, Université de Strasbourg, F-67087 Strasbourg, France.
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14
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Conte M, Armani A, Conte G, Serra A, Franceschi C, Mele M, Sandri M, Salvioli S. Muscle-specific Perilipin2 down-regulation affects lipid metabolism and induces myofiber hypertrophy. J Cachexia Sarcopenia Muscle 2019; 10:95-110. [PMID: 30288961 PMCID: PMC6438344 DOI: 10.1002/jcsm.12355] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/06/2018] [Accepted: 08/30/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Perilipin2 (Plin2) belongs to a family of five highly conserved proteins, known for their role in lipid storage. Recent data indicate that Plin2 has an important function in cell metabolism and is involved in several human pathologies, including liver steatosis and Type II diabetes. An association between Plin2 and lower muscle mass and strength has been found in elderly and inactive people, but its function in skeletal muscle is still unclear. Here, we addressed the role of Plin2 in adult muscle by gain and loss of function experiments. METHODS By mean of in vivo Plin2 down-regulation (shPlin2) and overexpression (overPlin2) in murine tibialis anterior muscle, we analysed the effects of Plin2 genetic manipulations on myofiber size and lipid composition. An analysis of skeletal muscle lipid composition was also performed in vastus lateralis samples from young and old patients undergoing hip surgery. RESULTS We found that Plin2 down-regulation was sufficient to induce a 30% increase of myofiber cross-sectional area, independently of mTOR pathway. Alterations of lipid content and modulation of genes involved in lipid synthesis occurred in hypertrophic muscles. In particular, we showed a decrease of triglycerides, ceramides, and phosphatidylcoline:phosphatidylethanolamine ratio, a condition known to impact negatively on muscle function. Plin2 overexpression did not change fibre size; however, lipid composition was strongly affected in a way that is similar to that observed in human samples from old patients. CONCLUSIONS Altogether these data indicate that Plin2 is a critical mediator for the control of muscle mass, likely, but maybe not exclusively, through its critical role in the regulation of intracellular lipid content and composition.
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Affiliation(s)
- Maria Conte
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy.,Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, Bologna, Italy
| | - Andrea Armani
- Venetian Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Giuseppe Conte
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Andrea Serra
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy.,Research Center of Nutraceuticals and Food for Health, University of Pisa, Pisa, Italy
| | | | - Marcello Mele
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy.,Research Center of Nutraceuticals and Food for Health, University of Pisa, Pisa, Italy
| | - Marco Sandri
- Venetian Institute of Molecular Medicine (VIMM), Padova, Italy.,Department of Biomedical Science, University of Padova, Padova, Italy
| | - Stefano Salvioli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy.,Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, Bologna, Italy
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15
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Chanon S, Chazarin B, Toubhans B, Durand C, Chery I, Robert M, Vieille-Marchiset A, Swenson JE, Zedrosser A, Evans AL, Brunberg S, Arnemo JM, Gauquelin-Koch G, Storey KB, Simon C, Blanc S, Bertile F, Lefai E. Proteolysis inhibition by hibernating bear serum leads to increased protein content in human muscle cells. Sci Rep 2018; 8:5525. [PMID: 29615761 PMCID: PMC5883044 DOI: 10.1038/s41598-018-23891-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 03/21/2018] [Indexed: 12/29/2022] Open
Abstract
Muscle atrophy is one of the main characteristics of human ageing and physical inactivity, with resulting adverse health outcomes. To date, there are still no efficient therapeutic strategies for its prevention and/or treatment. However, during hibernation, bears exhibit a unique ability for preserving muscle in conditions where muscle atrophy would be expected in humans. Therefore, our objective was to determine whether there are components of bear serum which can control protein balance in human muscles. In this study, we exposed cultured human differentiated muscle cells to bear serum collected during winter and summer periods, and measured the impact on cell protein content and turnover. In addition, we explored the signalling pathways that control rates of protein synthesis and degradation. We show that the protein turnover of human myotubes is reduced when incubated with winter bear serum, with a dramatic inhibition of proteolysis involving both proteasomal and lysosomal systems, and resulting in an increase in muscle cell protein content. By modulating intracellular signalling pathways and inducing a protein sparing phenotype in human muscle cells, winter bear serum therefore holds potential for developing new tools to fight human muscle atrophy and related metabolic disorders.
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Affiliation(s)
- Stéphanie Chanon
- CarMeN Laboratory, INSERM, INRA, University of Lyon, Pierre-Benite, France
| | - Blandine Chazarin
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000, Strasbourg, France
- Laboratoire de Spectrométrie de Masse Bio-Organique, 25 rue Becquerel, F-67087, Strasbourg, France
- Centre National d'Etudes Spatiales, CNES, 75039, Paris, France
| | - Benoit Toubhans
- CarMeN Laboratory, INSERM, INRA, University of Lyon, Pierre-Benite, France
| | - Christine Durand
- CarMeN Laboratory, INSERM, INRA, University of Lyon, Pierre-Benite, France
| | - Isabelle Chery
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000, Strasbourg, France
- Département Ecologie, Physiologie et Ethologie, 23 rue Becquerel, F-67087, Strasbourg, France
| | - Maud Robert
- CarMeN Laboratory, INSERM, INRA, University of Lyon, Pierre-Benite, France
- Department of digestive and bariatric surgery, Obesity Integrated Center, University Hospital of Edouard Herriot, Hospices Civils de Lyon, Lyon 1 University, Lyon, France
| | | | - Jon E Swenson
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, 1432, Ås, Norway
- Norwegian Institute for Nature Research, 7485, Trondheim, Norway
| | - Andreas Zedrosser
- Department of Natural Sciences and Environmental Health, University College of Southeast Norway, N3800 Bø in Telemark, Bø, Norway
- Institute of Wildlife Biology and Game Management, University of Natural Resources and Life Sciences, Vienna, Gregor Mendel Str. 33, A-1180, Vienna, Austria
| | - Alina L Evans
- Department of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, NO-2480, Koppang, Norway
| | - Sven Brunberg
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, 1432, Ås, Norway
| | - Jon M Arnemo
- Department of Forestry and Wildlife Management, Inland Norway University of Applied Sciences, NO-2480, Koppang, Norway
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, SE-901 83, Umeå, Sweden
| | | | - Kenneth B Storey
- Institute of Biochemistry and Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
| | - Chantal Simon
- CarMeN Laboratory, INSERM, INRA, University of Lyon, Pierre-Benite, France
| | - Stéphane Blanc
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000, Strasbourg, France
- Département Ecologie, Physiologie et Ethologie, 23 rue Becquerel, F-67087, Strasbourg, France
| | - Fabrice Bertile
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000, Strasbourg, France
- Laboratoire de Spectrométrie de Masse Bio-Organique, 25 rue Becquerel, F-67087, Strasbourg, France
| | - Etienne Lefai
- CarMeN Laboratory, INSERM, INRA, University of Lyon, Pierre-Benite, France.
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16
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Namous H, Peñagaricano F, Del Corvo M, Capra E, Thomas DL, Stella A, Williams JL, Marsan PA, Khatib H. Integrative analysis of methylomic and transcriptomic data in fetal sheep muscle tissues in response to maternal diet during pregnancy. BMC Genomics 2018; 19:123. [PMID: 29409445 PMCID: PMC5801776 DOI: 10.1186/s12864-018-4509-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 01/29/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Numerous studies have established a link between maternal diet and the physiological and metabolic phenotypes of their offspring. In previous studies in sheep, we demonstrated that different maternal diets altered the transcriptome of fetal tissues. However, the mechanisms underlying transcriptomic changes are poorly understood. DNA methylation is an epigenetic mark regulating transcription and is largely influenced by dietary components of the one-carbon cycle that generate the methyl group donor, SAM. Therefore, in the present study, we tested whether different maternal diets during pregnancy would alter the DNA methylation and gene expression patterns in fetal tissues. RESULTS Pregnant ewes were randomly divided into two groups which received either hay or corn diet from mid-gestation (day 67 ± 5) until day 131 ± 1 when fetuses were collected by necropsy. A total of 1516 fetal longissimus dorsi (LD) tissues were used for DNA methylation analysis and gene expression profiling. Whole genome DNA methylation using methyl-binding domain enrichment analysis revealed 60 differentially methylated regions (DMRs) between hay and corn fetuses with 39 DMRs more highly methylated in the hay fetuses vs. 21 DMRs more highly methylated in the corn fetuses. Three DMRs (LPAR3, PLIN5-PLIN4, and the differential methylation of a novel lincRNA) were validated using bisulfite sequencing. These DMRs were associated with differential gene expression. Additionally, significant DNA methylation differences were found at the single CpG level. Integrative methylome and transcriptome analysis revealed an association between gene expression and inter-/intragenic methylated regions. Furthermore, intragenic DMRs were found to be associated with expression of neighboring genes. CONCLUSIONS The findings of this study imply that maternal diet from mid- to late-gestation can shape the epigenome and the transcriptome of fetal tissues, and putatively affect phenotypes of the lambs.
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Affiliation(s)
- Hadjer Namous
- Department of Animal Sciences, University of Wisconsin, 1675 Observatory Drive, Madison, WI 53706 USA
| | - Francisco Peñagaricano
- Department of Animal Sciences, University of Florida Genetics Institute, University of Florida, Florida, USA
| | - Marcello Del Corvo
- Institute of Zootechnics and PRONUTRIGEN Research Center, Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del S. Cuore, Piacenza, Italy
| | - Emanuele Capra
- Istituto di Biologia e Biotecnologia Agraria, Consiglio Nazionale delle Ricerche, Lodi, Italy
| | - David L. Thomas
- Department of Animal Sciences, University of Wisconsin, 1675 Observatory Drive, Madison, WI 53706 USA
| | - Alessandra Stella
- Istituto di Biologia e Biotecnologia Agraria, Consiglio Nazionale delle Ricerche, Lodi, Italy
| | - John L. Williams
- Davies Research Centre, School of Animal and Veterinary Sciences, University of Adelaide, Roseworthy, Australia
| | - Paolo Ajmone Marsan
- Institute of Zootechnics and PRONUTRIGEN Research Center, Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del S. Cuore, Piacenza, Italy
| | - Hasan Khatib
- Department of Animal Sciences, University of Wisconsin, 1675 Observatory Drive, Madison, WI 53706 USA
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17
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Gastebois C, Chanon S, Rome S, Durand C, Pelascini E, Jalabert A, Euthine V, Pialoux V, Blanc S, Simon C, Lefai E. Transition from physical activity to inactivity increases skeletal muscle miR-148b content and triggers insulin resistance. Physiol Rep 2017; 4:4/17/e12902. [PMID: 27597765 PMCID: PMC5027343 DOI: 10.14814/phy2.12902] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 07/27/2016] [Indexed: 11/24/2022] Open
Abstract
This study investigated miR‐148b as a potential physiological actor of physical inactivity‐induced effects in skeletal muscle. By using animal and human protocols, we demonstrated that the early phase of transition toward inactivity was associated with an increase in muscle miR‐148b content, which triggered the downregulation of NRAS and ROCK1 target genes. Using human myotubes, we demonstrated that overexpression of miR‐148b decreased NRAS and ROCK1 protein levels, and PKB phosphorylation and glucose uptake in response to insulin. Increase in muscle miR‐148b content might thus participate in the decrease in insulin sensitivity at the whole body level during the transition toward physical inactivity.
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Affiliation(s)
- Caroline Gastebois
- CarMeN Laboratory, INSERM U1060 INRA 1397 University of Lyon 1, Oullins, France
| | - Stéphanie Chanon
- CarMeN Laboratory, INSERM U1060 INRA 1397 University of Lyon 1, Oullins, France
| | - Sophie Rome
- CarMeN Laboratory, INSERM U1060 INRA 1397 University of Lyon 1, Oullins, France
| | - Christine Durand
- CarMeN Laboratory, INSERM U1060 INRA 1397 University of Lyon 1, Oullins, France
| | - Elise Pelascini
- Department of Digestive and Bariatric Surgery, Hospices Civils de Lyon, Lyon, France
| | - Audrey Jalabert
- CarMeN Laboratory, INSERM U1060 INRA 1397 University of Lyon 1, Oullins, France
| | - Vanessa Euthine
- CarMeN Laboratory, INSERM U1060 INRA 1397 University of Lyon 1, Oullins, France
| | | | - Stéphane Blanc
- Institut Pluridisciplinaire Hubert Curien, CNRS UMR 7178 University of Strasbourg, Strasbourg, France
| | - Chantal Simon
- CarMeN Laboratory, INSERM U1060 INRA 1397 University of Lyon 1, Oullins, France
| | - Etienne Lefai
- CarMeN Laboratory, INSERM U1060 INRA 1397 University of Lyon 1, Oullins, France
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18
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Bivariate genome-wide association meta-analysis of pediatric musculoskeletal traits reveals pleiotropic effects at the SREBF1/TOM1L2 locus. Nat Commun 2017; 8:121. [PMID: 28743860 PMCID: PMC5527106 DOI: 10.1038/s41467-017-00108-3] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 06/01/2017] [Indexed: 11/24/2022] Open
Abstract
Bone mineral density is known to be a heritable, polygenic trait whereas genetic variants contributing to lean mass variation remain largely unknown. We estimated the shared SNP heritability and performed a bivariate GWAS meta-analysis of total-body lean mass (TB-LM) and total-body less head bone mineral density (TBLH-BMD) regions in 10,414 children. The estimated SNP heritability is 43% (95% CI: 34–52%) for TBLH-BMD, and 39% (95% CI: 30–48%) for TB-LM, with a shared genetic component of 43% (95% CI: 29–56%). We identify variants with pleiotropic effects in eight loci, including seven established bone mineral density loci: WNT4, GALNT3, MEPE, CPED1/WNT16, TNFSF11, RIN3, and PPP6R3/LRP5. Variants in the TOM1L2/SREBF1 locus exert opposing effects TB-LM and TBLH-BMD, and have a stronger association with the former trait. We show that SREBF1 is expressed in murine and human osteoblasts, as well as in human muscle tissue. This is the first bivariate GWAS meta-analysis to demonstrate genetic factors with pleiotropic effects on bone mineral density and lean mass. Bone mineral density and lean skeletal mass are heritable traits. Here, Medina-Gomez and colleagues perform bivariate GWAS analyses of total body lean mass and bone mass density in children, and show genetic loci with pleiotropic effects on both traits.
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19
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Fibroblast growth factor 19 regulates skeletal muscle mass and ameliorates muscle wasting in mice. Nat Med 2017. [PMID: 28650457 DOI: 10.1038/nm.4363] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The endocrine-derived hormone fibroblast growth factor (FGF) 19 has recently emerged as a potential target for treating metabolic disease. Given that skeletal muscle is a key metabolic organ, we explored the role of FGF19 in that tissue. Here we report a novel function of FGF19 in regulating skeletal muscle mass through enlargement of muscle fiber size, and in protecting muscle from atrophy. Treatment with FGF19 causes skeletal muscle hypertrophy in mice, while physiological and pharmacological doses of FGF19 substantially increase the size of human myotubes in vitro. These effects were not elicited by FGF21, a closely related endocrine FGF member. Both in vitro and in vivo, FGF19 stimulates the phosphorylation of the extracellular-signal-regulated protein kinase 1/2 (ERK1/2) and the ribosomal protein S6 kinase (S6K1), an mTOR-dependent master regulator of muscle cell growth. Moreover, mice with a skeletal-muscle-specific genetic deficiency of β-Klotho (KLB), an obligate co-receptor for FGF15/19 (refs. 2,3), were unresponsive to the hypertrophic effect of FGF19. Finally, in mice, FGF19 ameliorates skeletal muscle atrophy induced by glucocorticoid treatment or obesity, as well as sarcopenia. Taken together, these findings provide evidence that the enterokine FGF19 is a novel factor in the regulation of skeletal muscle mass, and that it has therapeutic potential for the treatment of muscle wasting.
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20
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Mastrocola R, Nigro D, Chiazza F, Medana C, Dal Bello F, Boccuzzi G, Collino M, Aragno M. Fructose-derived advanced glycation end-products drive lipogenesis and skeletal muscle reprogramming via SREBP-1c dysregulation in mice. Free Radic Biol Med 2016; 91:224-35. [PMID: 26721591 DOI: 10.1016/j.freeradbiomed.2015.12.022] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 12/07/2015] [Accepted: 12/19/2015] [Indexed: 12/21/2022]
Abstract
Advanced Glycation End-Products (AGEs) have been recently related to the onset of metabolic diseases and related complications. Moreover, recent findings indicate that AGEs can endogenously be formed by high dietary sugars, in particular by fructose which is widely used as added sweetener in foods and drinks. The aim of the present study was to investigate the impact of a high-fructose diet and the causal role of fructose-derived AGEs in mice skeletal muscle morphology and metabolism. C57Bl/6J mice were fed a standard diet (SD) or a 60% fructose diet (HFRT) for 12 weeks. Two subgroups of SD and HFRT mice received the anti-glycative compound pyridoxamine (150 mg/kg/day) in the drinking water. At the end of protocol high levels of AGEs were detected in both plasma and gastrocnemius muscle of HFRT mice associated to impaired expression of AGE-detoxifying AGE-receptor 1. In gastrocnemius, AGEs upregulated the lipogenesis by multiple interference on SREBP-1c through downregulation of the SREBP-inhibiting enzyme SIRT-1 and increased glycation of the SREBP-activating protein SCAP. The AGEs-induced SREBP-1c activation affected the expression of myogenic regulatory factors leading to alterations in fiber type composition, associated with reduced mitochondrial efficiency and muscular strength. Interestingly, pyridoxamine inhibited AGEs generation, thus counteracting all the fructose-induced alterations. The unsuspected involvement of diet-derived AGEs in muscle metabolic derangements and proteins reprogramming opens new perspectives in pathogenic mechanisms of metabolic diseases.
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Affiliation(s)
- R Mastrocola
- Department of Clinical and Biological Sciences, University of Turin, Italy.
| | - D Nigro
- Department of Clinical and Biological Sciences, University of Turin, Italy
| | - F Chiazza
- Department of Drug Science and Technology, University of Turin, Italy
| | - C Medana
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Italy
| | - F Dal Bello
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Italy
| | - G Boccuzzi
- Department of Medical Sciences, University of Turin, Italy
| | - M Collino
- Department of Drug Science and Technology, University of Turin, Italy
| | - M Aragno
- Department of Clinical and Biological Sciences, University of Turin, Italy
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21
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Parry TL, Desai G, Schisler JC, Li L, Quintana MT, Stanley N, Lockyer P, Patterson C, Willis MS. Fenofibrate unexpectedly induces cardiac hypertrophy in mice lacking MuRF1. Cardiovasc Pathol 2015; 25:127-140. [PMID: 26764147 DOI: 10.1016/j.carpath.2015.09.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 09/09/2015] [Accepted: 09/20/2015] [Indexed: 02/08/2023] Open
Abstract
The muscle-specific ubiquitin ligase muscle ring finger-1 (MuRF1) is critical in regulating both pathological and physiological cardiac hypertrophy in vivo. Previous work from our group has identified MuRF1's ability to inhibit serum response factor and insulin-like growth factor-1 signaling pathways (via targeted inhibition of cJun as underlying mechanisms). More recently, we have identified that MuRF1 inhibits fatty acid metabolism by targeting peroxisome proliferator-activated receptor alpha (PPARα) for nuclear export via mono-ubiquitination. Since MuRF1-/- mice have an estimated fivefold increase in PPARα activity, we sought to determine how challenge with the PPARα agonist fenofibrate, a PPARα ligand, would affect the heart physiologically. In as little as 3 weeks, feeding with fenofibrate/chow (0.05% wt/wt) induced unexpected pathological cardiac hypertrophy not present in age-matched sibling wild-type (MuRF1+/+) mice, identified by echocardiography, cardiomyocyte cross-sectional area, and increased beta-myosin heavy chain, brain natriuretic peptide, and skeletal muscle α-actin mRNA. In addition to pathological hypertrophy, MuRF1-/- mice had an unexpected differential expression in genes associated with the pleiotropic effects of fenofibrate involved in the extracellular matrix, protease inhibition, hemostasis, and the sarcomere. At both 3 and 8 weeks of fenofibrate treatment, the differentially expressed MuRF1-/- genes most commonly had SREBP-1 and E2F1/E2F promoter regions by TRANSFAC analysis (54 and 50 genes, respectively, of the 111 of the genes >4 and <-4 log fold change; P ≤ .0004). These studies identify MuRF1's unexpected regulation of fenofibrate's pleiotropic effects and bridges, for the first time, MuRF1's regulation of PPARα, cardiac hypertrophy, and hemostasis.
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Affiliation(s)
- Traci L Parry
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC, USA
| | - Gopal Desai
- Department of Biology, University of North Carolina, Chapel Hill, NC, USA
| | - Jonathan C Schisler
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC, USA.,Department of Pharmacology, University of North Carolina, Chapel Hill, NC, USA
| | - Luge Li
- Department of Pathology & Laboratory Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Megan T Quintana
- Department of Surgery, University of North Carolina, Chapel Hill, NC, USA
| | - Natalie Stanley
- Department of Bioinformatics and Computational Biology, University of North Carolina, Chapel Hill, NC, USA
| | - Pamela Lockyer
- Department of Pathology & Laboratory Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Cam Patterson
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC, USA.,Presbyterian Hospital/Weill-Cornell Medical Center, New York, NY, USA
| | - Monte S Willis
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC, USA.,Department of Pharmacology, University of North Carolina, Chapel Hill, NC, USA.,Department of Pathology & Laboratory Medicine, University of North Carolina, Chapel Hill, NC, USA
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22
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Liu Y, Li F, Kong X, Tan B, Li Y, Duan Y, Blachier F, Hu CAA, Yin Y. Signaling Pathways Related to Protein Synthesis and Amino Acid Concentration in Pig Skeletal Muscles Depend on the Dietary Protein Level, Genotype and Developmental Stages. PLoS One 2015; 10:e0138277. [PMID: 26394157 PMCID: PMC4578863 DOI: 10.1371/journal.pone.0138277] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 08/27/2015] [Indexed: 01/23/2023] Open
Abstract
Muscle growth is regulated by the homeostatic balance of the biosynthesis and degradation of muscle proteins. To elucidate the molecular interactions among diet, pig genotype, and physiological stage, we examined the effect of dietary protein concentration, pig genotype, and physiological stages on amino acid (AA) pools, protein deposition, and related signaling pathways in different types of skeletal muscles. The study used 48 Landrace pigs and 48 pure-bred Bama mini-pigs assigned to each of 2 dietary treatments: lower/GB (Chinese conventional diet)- or higher/NRC (National Research Council)-protein diet. Diets were fed from 5 weeks of age to respective market weights of each genotype. Samples of biceps femoris muscle (BFM, type I) and longissimus dorsi muscle (LDM, type II) were collected at nursery, growing, and finishing phases according to the physiological stage of each genotype, to determine the AA concentrations, mRNA levels for growth-related genes in muscles, and protein abundances of mechanistic target of rapamycin (mTOR) signaling pathway. Our data showed that the concentrations of most AAs in LDM and BFM of pigs increased (P<0.05) gradually with increasing age. Bama mini-pigs had generally higher (P<0.05) muscle concentrations of flavor-related AA, including Met, Phe, Tyr, Pro, and Ser, compared with Landrace pigs. The mRNA levels for myogenic determining factor, myogenin, myocyte-specific enhancer binding factor 2 A, and myostatin of Bama mini-pigs were higher (P<0.05) than those of Landrace pigs, while total and phosphorylated protein levels for protein kinase B, mTOR, and p70 ribosomal protein S6 kinases (p70S6K), and ratios of p-mTOR/mTOR, p-AKT/AKT, and p-p70S6K/p70S6K were lower (P<0.05). There was a significant pig genotype-dependent effect of dietary protein on the levels for mTOR and p70S6K. When compared with the higher protein-NRC diet, the lower protein-GB diet increased (P<0.05) the levels for mTOR and p70S6K in Bama mini-pigs, but repressed (P<0.05) the level for p70S6K in Landrace pigs. The higher protein-NRC diet increased ratio of p-mTOR/mTOR in Landrace pigs. These findings indicated that the dynamic consequences of AA profile and protein deposition in muscle tissues are the concerted effort of distinctive genotype, nutrient status, age, and muscle type. Our results provide valuable information for animal feeding strategy.
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Affiliation(s)
- Yingying Liu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Chinese Academy of Sciences, Changsha, Hunan, China
- Hunan Animal Science and Veterinary Medicine Research Institute, Changsha, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Fengna Li
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Xiangfeng Kong
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Chinese Academy of Sciences, Changsha, Hunan, China
- * E-mail: (XK); (YY)
| | - Bie Tan
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Yinghui Li
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Chinese Academy of Sciences, Changsha, Hunan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yehui Duan
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Chinese Academy of Sciences, Changsha, Hunan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - François Blachier
- INRA, CNRH-IdF, AgroParisTech, UMR 914 Nutrition Physiology and Ingestive Behavior, Paris, France
| | - Chien-An A. Hu
- Department of Biochemistry and Molecular Biology, University of New Mexico, Albuquerque, United States of America
| | - Yulong Yin
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Chinese Academy of Sciences, Changsha, Hunan, China
- School of Biology, Hunan Normal Univesity, Hunan, Changsha City, 410018, China
- Changsha Lvye Biotechnology Limited Company, Guangdong Hinapharm Group and WangDa Academician Workstation, Hunan, Changsha City, 41019, P. R. China
- * E-mail: (XK); (YY)
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23
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Sfrp2 is a transcriptional target of SREBP-1 in mouse chondrogenic cells. Mol Cell Biochem 2015; 406:163-71. [DOI: 10.1007/s11010-015-2434-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 05/06/2015] [Indexed: 11/26/2022]
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24
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Accumulation of advanced glycation end-products and activation of the SCAP/SREBP Lipogenetic pathway occur in diet-induced obese mouse skeletal muscle. PLoS One 2015; 10:e0119587. [PMID: 25750996 PMCID: PMC4353621 DOI: 10.1371/journal.pone.0119587] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 01/14/2015] [Indexed: 01/11/2023] Open
Abstract
Aim of this study was to investigate whether advanced glycation end-products (AGEs) accumulate in skeletal myofibers of two different animal models of diabesity and whether this accumulation could be associated to myosteatosis. Male C57Bl/6j mice and leptin-deficient ob/ob mice were divided into three groups and underwent 15 weeks of dietary manipulation: standard diet-fed C57 group (C57, n = 10), high-fat high-sugar diet-fed C57 group (HFHS, n = 10), and standard diet-fed ob/ob group (OB/OB, n = 8). HFHS mice and OB/OB mice developed glycometabolic abnormalities in association with decreased mass of the gastrocnemius muscle, fast-to-slow transition of muscle fibers, and lipid accumulation (that occurred preferentially in slow compared to fast fibers). Moreover, we found in muscle fibers of HFHS and OB/OB mice accumulation of AGEs that was preferential for the lipid-accumulating cells, increased expression of the lipogenic pathway SCAP/SREBP, and co-localisation between AGEs and SCAP-(hyper)expressing cells (suggestive for SCAP glycosylation). The increased expression of the SCAP/SREBP lipogenic pathway in muscle fibers is a possible mechanism underlying lipid accumulation and linking myosteatosis to muscle fiber atrophy and fast-to-slow transition that occur in response to diabesity.
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25
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Hu Y, Young AJ, Ehli EA, Nowotny D, Davies PS, Droke EA, Soundy TJ, Davies GE. Metformin and berberine prevent olanzapine-induced weight gain in rats. PLoS One 2014; 9:e93310. [PMID: 24667776 PMCID: PMC3965561 DOI: 10.1371/journal.pone.0093310] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 02/28/2014] [Indexed: 02/04/2023] Open
Abstract
Olanzapine is a first line medication for the treatment of schizophrenia, but it is also one of the atypical antipsychotics carrying the highest risk of weight gain. Metformin was reported to produce significant attenuation of antipsychotic-induced weight gain in patients, while the study of preventing olanzapine-induced weight gain in an animal model is absent. Berberine, an herbal alkaloid, was shown in our previous studies to prevent fat accumulation in vitro and in vivo. Utilizing a well-replicated rat model of olanzapine-induced weight gain, here we demonstrated that two weeks of metformin or berberine treatment significantly prevented the olanzapine-induced weight gain and white fat accumulation. Neither metformin nor berberine treatment demonstrated a significant inhibition of olanzapine-increased food intake. But interestingly, a significant loss of brown adipose tissue caused by olanzapine treatment was prevented by the addition of metformin or berberine. Our gene expression analysis also demonstrated that the weight gain prevention efficacy of metformin or berberine treatment was associated with changes in the expression of multiple key genes controlling energy expenditure. This study not only demonstrates a significant preventive efficacy of metformin and berberine treatment on olanzapine-induced weight gain in rats, but also suggests a potential mechanism of action for preventing olanzapine-reduced energy expenditure.
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Affiliation(s)
- Yueshan Hu
- Avera Institute for Human Genetics, Avera McKennan Hospital & University Health Center, Sioux Falls, South Dakota, United States of America; Department of Psychiatry, Sanford School of Medicine, University of South Dakota, Sioux Falls, South Dakota, United States of America
| | - Alan J Young
- Department of Veterinary and Biomedical Sciences, College of Agriculture & Biological Sciences, South Dakota State University, Brookings, South Dakota, United States of America
| | - Erik A Ehli
- Avera Institute for Human Genetics, Avera McKennan Hospital & University Health Center, Sioux Falls, South Dakota, United States of America; Department of Psychiatry, Sanford School of Medicine, University of South Dakota, Sioux Falls, South Dakota, United States of America
| | - Dustin Nowotny
- Avera Institute for Human Genetics, Avera McKennan Hospital & University Health Center, Sioux Falls, South Dakota, United States of America
| | - Paige S Davies
- Avera Institute for Human Genetics, Avera McKennan Hospital & University Health Center, Sioux Falls, South Dakota, United States of America
| | - Elizabeth A Droke
- Department of Health and Nutritional Sciences, College of Education & Human Sciences, South Dakota State University, Brookings, South Dakota, United States of America
| | - Timothy J Soundy
- Department of Psychiatry, Sanford School of Medicine, University of South Dakota, Sioux Falls, South Dakota, United States of America
| | - Gareth E Davies
- Avera Institute for Human Genetics, Avera McKennan Hospital & University Health Center, Sioux Falls, South Dakota, United States of America; Department of Psychiatry, Sanford School of Medicine, University of South Dakota, Sioux Falls, South Dakota, United States of America; Department of Pharmacy Practice, College of Pharmacy, South Dakota State University, Brookings, South Dakota, United States of America
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26
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Zampieri S, Pietrangelo L, Loefler S, Fruhmann H, Vogelauer M, Burggraf S, Pond A, Grim-Stieger M, Cvecka J, Sedliak M, Tirpáková V, Mayr W, Sarabon N, Rossini K, Barberi L, De Rossi M, Romanello V, Boncompagni S, Musarò A, Sandri M, Protasi F, Carraro U, Kern H. Lifelong physical exercise delays age-associated skeletal muscle decline. J Gerontol A Biol Sci Med Sci 2014; 70:163-73. [PMID: 24550352 DOI: 10.1093/gerona/glu006] [Citation(s) in RCA: 187] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Aging is usually accompanied by a significant reduction in muscle mass and force. To determine the relative contribution of inactivity and aging per se to this decay, we compared muscle function and structure in (a) male participants belonging to a group of well-trained seniors (average of 70 years) who exercised regularly in their previous 30 years and (b) age-matched healthy sedentary seniors with (c) active young men (average of 27 years). The results collected show that relative to their sedentary cohorts, muscle from senior sportsmen have: (a) greater maximal isometric force and function, (b) better preserved fiber morphology and ultrastructure of intracellular organelles involved in Ca(2+) handling and ATP production, (c) preserved muscle fibers size resulting from fiber rescue by reinnervation, and (d) lowered expression of genes related to autophagy and reactive oxygen species detoxification. All together, our results indicate that: (a) skeletal muscle of senior sportsmen is actually more similar to that of adults than to that of age-matched sedentaries and (b) signaling pathways controlling muscle mass and metabolism are differently modulated in senior sportsmen to guarantee maintenance of skeletal muscle structure, function, bioenergetic characteristics, and phenotype. Thus, regular physical activity is a good strategy to attenuate age-related general decay of muscle structure and function (ClinicalTrials.gov: NCT01679977).
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Affiliation(s)
- S Zampieri
- Ludwig Boltzmann Institute of Electrical Stimulation and Physical Rehabilitation, Vienna, Austria. Department of Biomedical Sciences, University of Padova, Italy.
| | - L Pietrangelo
- CeSI - Center for Research on Aging - Department of Neuroscience, Imaging and Clinical Sciences, University G. d'Annunzio of Chieti, Italy
| | - S Loefler
- Ludwig Boltzmann Institute of Electrical Stimulation and Physical Rehabilitation, Vienna, Austria
| | - H Fruhmann
- Ludwig Boltzmann Institute of Electrical Stimulation and Physical Rehabilitation, Vienna, Austria
| | - M Vogelauer
- Department of Physical Medicine and Rehabilitation, Wilhelminenspital, Vienna, Austria
| | - S Burggraf
- Ludwig Boltzmann Institute of Electrical Stimulation and Physical Rehabilitation, Vienna, Austria
| | - A Pond
- Anatomy Department, Southern Illinois University School of Medicine, Carbondale
| | - M Grim-Stieger
- Department of Physical Medicine and Rehabilitation, Wilhelminenspital, Vienna, Austria
| | - J Cvecka
- Faculty of Physical Education and Sport, Comenius University, Bratislava, Slovakia
| | - M Sedliak
- Faculty of Physical Education and Sport, Comenius University, Bratislava, Slovakia
| | - V Tirpáková
- Faculty of Physical Education and Sport, Comenius University, Bratislava, Slovakia
| | - W Mayr
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Austria
| | - N Sarabon
- University of Primorska, Science and Research Centre, Institute for Kinesilogical Research, Koper, Slovenia
| | - K Rossini
- Ludwig Boltzmann Institute of Electrical Stimulation and Physical Rehabilitation, Vienna, Austria. Department of Biomedical Sciences, University of Padova, Italy
| | - L Barberi
- Institute Pasteur Cenci-Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, IIM, Sapienza University of Rome, Rome, Italy
| | - M De Rossi
- Institute Pasteur Cenci-Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, IIM, Sapienza University of Rome, Rome, Italy
| | - V Romanello
- Department of Biomedical Sciences, University of Padova, Italy. Venetian Institute of Molecular Medicine, Dulbecco Telethon Institute, Padova, Italy
| | - S Boncompagni
- CeSI - Center for Research on Aging - Department of Neuroscience, Imaging and Clinical Sciences, University G. d'Annunzio of Chieti, Italy
| | - A Musarò
- Institute Pasteur Cenci-Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, IIM, Sapienza University of Rome, Rome, Italy
| | - M Sandri
- Department of Biomedical Sciences, University of Padova, Italy. Venetian Institute of Molecular Medicine, Dulbecco Telethon Institute, Padova, Italy
| | - F Protasi
- CeSI - Center for Research on Aging - Department of Neuroscience, Imaging and Clinical Sciences, University G. d'Annunzio of Chieti, Italy
| | - U Carraro
- Department of Biomedical Sciences, University of Padova, Italy
| | - H Kern
- Ludwig Boltzmann Institute of Electrical Stimulation and Physical Rehabilitation, Vienna, Austria. Department of Physical Medicine and Rehabilitation, Wilhelminenspital, Vienna, Austria
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27
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Joshi SK, Kim HT, Feeley BT, Liu X. Differential ubiquitin-proteasome and autophagy signaling following rotator cuff tears and suprascapular nerve injury. J Orthop Res 2014; 32:138-44. [PMID: 24018537 PMCID: PMC3856942 DOI: 10.1002/jor.22482] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Accepted: 08/14/2013] [Indexed: 02/06/2023]
Abstract
Previous studies have evaluated role of Akt/mTOR signaling in rotator cuff muscle atrophy and determined that there was differential in signaling following tendon transection (TT) and suprascapular nerve (SSN) denervation (DN), suggesting that atrophy following TT and DN was modulated by different protein degradation pathways. In this study, two muscle proteolytic systems that have been shown to be potent regulators of muscle atrophy in other injury models, the ubiquitin-proteasome pathway and autophagy, were evaluated following TT and DN. In addition to examining protein degradation, this study assessed protein synthesis rate following these two surgical models to understand how the balance between protein degradation and synthesis results in atrophy following rotator cuff injury. In contrast to the traditional theory that protein synthesis is decreased during muscle atrophy, this study suggests that protein synthesis is up-regulated in rotator cuff muscle atrophy following both surgical models. While the ubiquitin-proteasome pathway was a major contributor to the atrophy seen following DN, autophagy was a major contributor following TT. The findings of this study suggest that protein degradation is the primary factor contributing to atrophy following rotator cuff injury. However, different proteolytic pathways are activated if SSN injury is involved.
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Affiliation(s)
- Sunil K. Joshi
- San Francisco Veterans Affairs Medical Center, Department of Veterans Affairs,Department of Orthopaedic Surgery, University of California, San Francisco
| | - Hubert T. Kim
- San Francisco Veterans Affairs Medical Center, Department of Veterans Affairs,Department of Orthopaedic Surgery, University of California, San Francisco
| | - Brian T. Feeley
- San Francisco Veterans Affairs Medical Center, Department of Veterans Affairs,Department of Orthopaedic Surgery, University of California, San Francisco
| | - Xuhui Liu
- San Francisco Veterans Affairs Medical Center, Department of Veterans Affairs,Department of Orthopaedic Surgery, University of California, San Francisco,Corresponding author: Xuhui Liu, M.D., San Francisco Veterans Affairs Medical Center, 4150 Clement Street, San Francisco, CA 94153, Tel: 415-221-4810 x 2742, Fax: 415-750-2181,
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28
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Yang L, Munck M, Swaminathan K, Kapinos LE, Noegel AA, Neumann S. Mutations in LMNA modulate the lamin A--Nesprin-2 interaction and cause LINC complex alterations. PLoS One 2013; 8:e71850. [PMID: 23977161 PMCID: PMC3748058 DOI: 10.1371/journal.pone.0071850] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 07/03/2013] [Indexed: 11/29/2022] Open
Abstract
Background In eukaryotes the genetic material is enclosed by a continuous membrane system, the nuclear envelope (NE). Along the NE specific proteins assemble to form meshworks and mutations in these proteins have been described in a group of human diseases called laminopathies. Laminopathies include lipodystrophies, muscle and cardiac diseases as well as metabolic or progeroid syndromes. Most laminopathies are caused by mutations in the LMNAgene encoding lamins A/C. Together with Nesprins (Nuclear Envelope Spectrin Repeat Proteins) they are core components of the LINC complex (Linker of Nucleoskeleton and Cytoskeleton). The LINC complex connects the nucleoskeleton and the cytoskeleton and plays a role in the transfer of mechanically induced signals along the NE into the nucleus, and its components have been attributed functions in maintaining nuclear and cellular organization as well as signal transduction. Results Here we narrowed down the interaction sites between lamin A and Nesprin-2 to aa 403–425 in lamin A and aa 6146–6347 in Nesprin-2. Laminopathic mutations in and around the involved region of lamin A (R401C, G411D, G413C, V415I, R419C, L421P, R427G, Q432X) modulate the interaction with Nesprin-2 and this may contribute to the disease phenotype. The most notable mutation is the lamin A mutation Q432X that alters LINC complex protein assemblies and causes chromosomal and transcription factor rearrangements. Conclusion Mutations in Nesprin-2 and lamin A are characterised by complex genotype phenotype relations. Our data show that each mutation in LMNAanalysed here has a distinct impact on the interaction among both proteins that substantially explains how distinct mutations in widely expressed genes lead to the formation of phenotypically different diseases.
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Affiliation(s)
- Liu Yang
- Institute for Biochemistry I, Medical Faculty, University of Cologne, and Center for Molecular Medicine Cologne (CMMC) and Cologne Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Medical Faculty, University of Cologne, Cologne, Germany
| | - Martina Munck
- Institute for Biochemistry I, Medical Faculty, University of Cologne, and Center for Molecular Medicine Cologne (CMMC) and Cologne Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Medical Faculty, University of Cologne, Cologne, Germany
| | - Karthic Swaminathan
- Institute for Biochemistry I, Medical Faculty, University of Cologne, and Center for Molecular Medicine Cologne (CMMC) and Cologne Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Medical Faculty, University of Cologne, Cologne, Germany
| | - Larisa E. Kapinos
- Biozentrum and the Nanoscience Institute, University of Basel, Basel, Switzerland
| | - Angelika A. Noegel
- Institute for Biochemistry I, Medical Faculty, University of Cologne, and Center for Molecular Medicine Cologne (CMMC) and Cologne Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Medical Faculty, University of Cologne, Cologne, Germany
- * E-mail: (AAN); (SN)
| | - Sascha Neumann
- Institute for Biochemistry I, Medical Faculty, University of Cologne, and Center for Molecular Medicine Cologne (CMMC) and Cologne Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Medical Faculty, University of Cologne, Cologne, Germany
- * E-mail: (AAN); (SN)
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