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Yu W, Yao Y, Ye N, Zhao Y, Ye Z, Wei W, Zhang L, Chen J. The myokine CCL5 recruits subcutaneous preadipocytes and promotes intramuscular fat deposition in obese mice. Am J Physiol Cell Physiol 2024; 326:C1320-C1333. [PMID: 38497114 DOI: 10.1152/ajpcell.00591.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 03/19/2024]
Abstract
Intramuscular fat (IMF) refers to the lipid stored in skeletal muscle tissue. The number and size of intramuscular adipocytes are the primary factors that regulate IMF content. Intramuscular adipocytes can be derived from either in situ or ectopic migration. In this study, it was discovered that the regulation of IMF levels is achieved through the chemokine (C-C motif) ligand 5 (CCL5)/chemokine (C-C motif) receptor 5 (CCR5) pathway by modulating adipocyte migration. In coculture experiments, C2C12 myotubes were more effective in promoting the migration of 3T3-L1 preadipocytes than C2C12 myoblasts, along with increasing CCL5. Correspondingly, overexpressing the CCR5, one of the receptors of CCL5, in 3T3-L1 preadipocytes facilitated their migration. Conversely, the application of the CCL5/CCR5 inhibitor, MARAVIROC (MVC), reduced this migration. In vivo, transplanted experiments of subcutaneous adipose tissue (SCAT) from transgenic mice expressing green fluorescent protein (GFP) provided evidence that injecting recombinant CCL5 (rCCL5) into skeletal muscle promotes the migration of subcutaneous adipocytes to the skeletal muscle. The level of CCL5 in skeletal muscle increased with obesity. Blocking the CCL5/CCR5 axis by MVC inhibited IMF deposition, whereas elevated skeletal muscle CCL5 promoted IMF deposition in obese mice. These results establish a link between the IMF and the CCL5/CCR5 pathway, which could have a potential application for modulating IMF through adipocyte migration.NEW & NOTEWORTHY C2C12 myotubes attract 3T3-L1 preadipocyte migration regulated by the chemokine (C-C motif) ligand 5 (CCL5)/ chemokine (C-C motif) receptor 5 (CCR5) axis. High levels of skeletal muscle-specific CCL5 promote the migration of subcutaneous adipocytes to skeletal muscle and induce the intramuscular fat (IMF) content.
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Affiliation(s)
- Wensai Yu
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Yao Yao
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Nanwei Ye
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Yuelei Zhao
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Zijian Ye
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Wei Wei
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Lifan Zhang
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
| | - Jie Chen
- College of Animal Science and TechnologyNanjing Agricultural University, NanjingPeople's Republic of China
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Drummer DJ, Lavin KM, Graham ZA, O'Bryan SM, McAdam JS, Lixandrão ME, Seay R, Aban I, Siegel HJ, Ghanem E, Singh JA, Bonfitto A, Antone J, Reiman R, Hutchins E, Van Keuren-Jensen K, Schutzler SE, Barnes CL, Ferrando AA, Bridges SL, Bamman MM. Muscle transcriptomic circuits linked to periarticular physiology in end-stage osteoarthritis. Physiol Genomics 2022; 54:501-513. [PMID: 36278270 PMCID: PMC9762959 DOI: 10.1152/physiolgenomics.00092.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/08/2022] [Accepted: 10/20/2022] [Indexed: 02/01/2023] Open
Abstract
The ability of individuals with end-stage osteoarthritis (OA) to functionally recover from total joint arthroplasty is highly inconsistent. The molecular mechanisms driving this heterogeneity have yet to be elucidated. Furthermore, OA disproportionately impacts females, suggesting a need for identifying female-specific therapeutic targets. We profiled the skeletal muscle transcriptome in females with end-stage OA (n = 20) undergoing total knee or hip arthroplasty using RNA-Seq. Single-gene differential expression (DE) analyses tested for DE genes between skeletal muscle overlaying the surgical (SX) joint and muscle from the contralateral (CTRL) leg. Network analyses were performed using Pathway-Level Information ExtractoR (PLIER) to summarize genes into latent variables (LVs), i.e., gene circuits, and link them to biological pathways. LV differences in SX versus CTRL muscle and across sources of muscle tissue (vastus medialis, vastus lateralis, or tensor fascia latae) were determined with ANOVA. Linear models tested for associations between LVs and muscle phenotype on the SX side (inflammation, function, and integrity). DE analysis revealed 360 DE genes (|Log2 fold-difference| ≥ 1, FDR ≤ 0.05) between the SX and CTRL limbs, many associated with inflammation and lipid metabolism. PLIER analyses revealed circuits associated with protein degradation and fibro-adipogenic cell gene expression. Muscle inflammation and function were linked to an LV associated with endothelial cell gene expression highlighting a potential regulatory role of endothelial cells within skeletal muscle. These findings may provide insight into potential therapeutic targets to improve OA rehabilitation before and/or following total joint replacement.
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Affiliation(s)
- Devin J Drummer
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Kaleen M Lavin
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
- Florida Institute for Human and Machine Cognition, Pensacola, Florida
| | - Zachary A Graham
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
- Florida Institute for Human and Machine Cognition, Pensacola, Florida
- Birmingham VA Medical Center, Birmingham, Alabama
| | - Samia M O'Bryan
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Jeremy S McAdam
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
- Florida Institute for Human and Machine Cognition, Pensacola, Florida
| | - Manoel E Lixandrão
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado
| | - Regina Seay
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Inmaculada Aban
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama
| | - Herrick J Siegel
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Elie Ghanem
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Jasvinder A Singh
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Birmingham VA Medical Center, Birmingham, Alabama
- Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Comprehensive Arthritis, Musculoskeletal, Bone, and Autoimmunity Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Anna Bonfitto
- Division of Neurogenomics, The Translational Genomics Research Institute, Phoenix, Arizona
| | - Jerry Antone
- Division of Neurogenomics, The Translational Genomics Research Institute, Phoenix, Arizona
| | - Rebecca Reiman
- Division of Neurogenomics, The Translational Genomics Research Institute, Phoenix, Arizona
| | - Elizabeth Hutchins
- Division of Neurogenomics, The Translational Genomics Research Institute, Phoenix, Arizona
| | | | - Scott E Schutzler
- Department of Geriatrics and Center for Translational Research in Aging and Longevity, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - C Lowry Barnes
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Arny A Ferrando
- Department of Geriatrics and Center for Translational Research in Aging and Longevity, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - S Louis Bridges
- Department of Medicine, Hospital for Special Surgery, New York, New York
- Division of Rheumatology, Weill Cornell Medical Center, New York, New York
| | - Marcas M Bamman
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama
- Florida Institute for Human and Machine Cognition, Pensacola, Florida
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Korbecki J, Gąssowska-Dobrowolska M, Wójcik J, Szatkowska I, Barczak K, Chlubek M, Baranowska-Bosiacka I. The Importance of CXCL1 in Physiology and Noncancerous Diseases of Bone, Bone Marrow, Muscle and the Nervous System. Int J Mol Sci 2022; 23:ijms23084205. [PMID: 35457023 PMCID: PMC9024980 DOI: 10.3390/ijms23084205] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/08/2022] [Accepted: 04/09/2022] [Indexed: 02/04/2023] Open
Abstract
This review describes the role of CXCL1, a chemokine crucial in inflammation as a chemoattractant for neutrophils, in physiology and in selected major non-cancer diseases. Due to the vast amount of available information, we focus on the role CXCL1 plays in the physiology of bones, bone marrow, muscle and the nervous system. For this reason, we describe its effects on hematopoietic stem cells, myoblasts, oligodendrocyte progenitors and osteoclast precursors. We also present the involvement of CXCL1 in diseases of selected tissues and organs including Alzheimer’s disease, epilepsy, herpes simplex virus type 1 (HSV-1) encephalitis, ischemic stroke, major depression, multiple sclerosis, neuromyelitis optica, neuropathic pain, osteoporosis, prion diseases, rheumatoid arthritis, tick-borne encephalitis (TBE), traumatic spinal cord injury and West Nile fever.
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Affiliation(s)
- Jan Korbecki
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 72 Av., 70-111 Szczecin, Poland; (J.K.); (M.C.)
- Department of Ruminants Science, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Klemensa Janickiego 29 St., 71-270 Szczecin, Poland; (J.W.); (I.S.)
| | - Magdalena Gąssowska-Dobrowolska
- Department of Cellular Signalling, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland;
| | - Jerzy Wójcik
- Department of Ruminants Science, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Klemensa Janickiego 29 St., 71-270 Szczecin, Poland; (J.W.); (I.S.)
| | - Iwona Szatkowska
- Department of Ruminants Science, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Klemensa Janickiego 29 St., 71-270 Szczecin, Poland; (J.W.); (I.S.)
| | - Katarzyna Barczak
- Department of Conservative Dentistry and Endodontics, Pomeranian Medical University, Powstańców Wlkp. 72 Av., 70-111 Szczecin, Poland;
| | - Mikołaj Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 72 Av., 70-111 Szczecin, Poland; (J.K.); (M.C.)
| | - Irena Baranowska-Bosiacka
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 72 Av., 70-111 Szczecin, Poland; (J.K.); (M.C.)
- Correspondence: ; Tel.: +48-914-661-515
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Suzuki T, Shimizu M, Yamauchi Y, Sato R. Nobiletin enhances plasma Interleukin‐6 and C‐X‐C motif chemokine ligand 1 levels that are increased by treadmill running. FOOD SCIENCE & NUTRITION 2022; 10:2360-2369. [PMID: 35844904 PMCID: PMC9281940 DOI: 10.1002/fsn3.2844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 03/06/2022] [Accepted: 03/07/2022] [Indexed: 12/04/2022]
Abstract
Exercise increases the muscular secretion of Interleukin‐6 (IL‐6), which is partially regulated by β2‐adrenergic receptor signaling. Nobiletin is a polymethoxyflavone (PMF) found in citrus fruits that induces the secretion of IL‐6 from C2C12 myotubes, but it remains unclear whether nobiletin promotes IL‐6 secretion during exercise. The aim of this study was to clarify the effects of nobiletin on IL‐6 secretion during exercise. Nobiletin and epinephrine were found to synergistically increase IL‐6 secretion from differentiated C2C12 cells, which was suppressed by the inhibition of adenylyl cyclase (AC) or protein kinase A (PKA). Treadmill running for 60 min increased plasma levels of IL‐6, epinephrine, and norepinephrine in rats. Nobiletin (5 mg/kg) orally administered 30 min before running increased plasma IL‐6 levels further, although it did not increase plasma epinephrine and norepinephrine. In a similar manner to IL‐6, nobiletin and epinephrine synergistically increased the secretion of C‐X‐C motif chemokine ligand 1 (CXCL‐1) from C2C12 cells, or the increase in plasma CXCL‐1 was enhanced by nobiletin after treadmill running of rats. Our results suggest that nobiletin promotes IL‐6 and CXCL‐1 secretion from skeletal muscle by synergistic enhancement of the PKA pathway in β2‐adrenergic receptor signaling.
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Affiliation(s)
- Toshihide Suzuki
- Nutri‐Life Science Laboratory Department of Applied Biological Chemistry Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo Japan
| | - Makoto Shimizu
- Nutri‐Life Science Laboratory Department of Applied Biological Chemistry Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo Japan
| | - Yoshio Yamauchi
- Nutri‐Life Science Laboratory Department of Applied Biological Chemistry Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo Japan
- Food Biochemistry Laboratory Department of Applied Biological Chemistry Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo Japan
| | - Ryuichiro Sato
- Nutri‐Life Science Laboratory Department of Applied Biological Chemistry Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo Japan
- Food Biochemistry Laboratory Department of Applied Biological Chemistry Graduate School of Agricultural and Life Sciences The University of Tokyo Tokyo Japan
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Rauen M, Hao D, Müller A, Mückter E, Bollheimer LC, Nourbakhsh M. Free Fatty Acid Species Differentially Modulate the Inflammatory Gene Response in Primary Human Skeletal Myoblasts. BIOLOGY 2021; 10:biology10121318. [PMID: 34943232 PMCID: PMC8698660 DOI: 10.3390/biology10121318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 12/21/2022]
Abstract
Simple Summary Epidemiological studies show that obesity increases the risk of muscle mass loss with age, a syndrome called sarcopenic obesity. Obesity leads to increased free fatty acids (FFAs) and excessive fat deposits, which impair the integrity of skeletal muscles by unknown mechanisms. This report indicates that FFAs directly affect human skeletal muscle cell replication and inflammatory gene expression. The structural characteristics of FFAs play a decisive role in triggering both processes. Thus, the characterization of abundant FFA species in the skeletal muscle of obese individuals may become a useful tool to predict the progression of sarcopenic obesity. Abstract Age-related loss of skeletal muscle is associated with obesity and inflammation. In animal models, intramuscular fat deposits compromise muscle integrity; however, the relevant fat components that mediate muscular inflammation are not known. Previously, we hypothesized that free fatty acids (FFAs) may directly induce inflammatory gene expression in skeletal muscle cells of obese rats. Here, we examined this hypothesis in primary human skeletal myoblasts (SkMs) using multiplex expression analysis of 39 inflammatory proteins in response to different FFA species. Multiplex mRNA quantification confirmed that the IL6, IL1RA, IL4, LIF, CXCL8, CXCL1, CXCL12 and CCL2 genes were differentially regulated by saturated and unsaturated C16 or C18 FFAs. Fluorescence staining revealed that only saturated C16 and C18 strongly interfere with myoblast replication independent of desmin expression, mitochondrial abundance and oxidative activity. Furthermore, we addressed the possible implications of 71 human receptor tyrosine kinases (RTKs) in FFA-mediated effects. Phosphorylated EphB6 and TNK2 were associated with impaired myoblast replication by saturated C16 and C18 FFAs. Our data suggest that abundant FFA species in human skeletal muscle tissue may play a decisive role in the progression of sarcopenic obesity by affecting inflammatory signals or myoblast replication.
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Yeo M, Chae S, Kim G. An in vitro model using spheroids-laden nanofibrous structures for attaining high degree of myoblast alignment and differentiation. Am J Cancer Res 2021; 11:3331-3347. [PMID: 33537090 PMCID: PMC7847672 DOI: 10.7150/thno.53928] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/16/2020] [Indexed: 12/22/2022] Open
Abstract
A spheroid is an aggregation of single cells with structural and functional characteristics similar to those of 3D native tissues, and it has been utilized as one of the typical in vitro three-dimensional (3D) cell models. Scaffold-free spheroids provide outstanding reflection of tissue complexity in a 3D in vivo-like environment, but they can neither fabricate realistic macroscale 3D complex structures without avoiding necrosis nor receive direct external stimuli (i.e., stimuli from mechanical or topographical cues). Here, we propose a spheroid-laden electrospinning process to obtain in vitro model achieved using the synergistic effect of the unique bioactive components provided by the spheroids and stimulating effects provided by the aligned nanofibers. Methods: To show the functional activity of the spheroid-laden structures, we used myoblast-spheroids to obtain skeletal muscle, comprising highly aligned myotubes, utilizing an uniaxially arranged topographical cue. The spheroid-electrospinning was used to align spheroids directly by embedding them in aligned alginate nanofibers, which were controlled with various materials and processing parameters. Results: The spheroids laden in the alginate nanofibers showed high cell viability (>90%) and was compared with that of a cell-laden alginate nanofiber that was electrospun with single cells. Consequently, the spheroids laden in the aligned nanofibers showed a significantly higher degree of myotube formation and maturation. Conclusion: Results suggested that the in vitro model using electrospun spheroids could potentially be employed to understand myogenic responses for various in vitro drug tests.
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Gauze-Gnagne C, Raynaud F, Djohan YF, Lauret C, Feillet-Coudray C, Coudray C, Monde A, Koffi G, Morena M, Camara-Cisse M, Cristol JP, Badia E. Impact of diets rich in olive oil, palm oil or lard on myokine expression in rats. Food Funct 2020; 11:9114-9128. [PMID: 33025998 DOI: 10.1039/d0fo01269f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
It has recently emerged that myokines may be an important skeletal muscle adaptive response to obesogenic diets in sedentary subjects (who do not exercise). This study aimed to assess the influence of various high fat (HF) diets rich in either crude palm oil (cPO), refined palm oil (rPO), olive oil (OO) or lard on the modulation of myokine gene expression in the gastrocnemius. Five groups of 8 rats were each fed HF or control diet for 12 weeks. Systemic parameters concerning glucose, insulin, inflammation, cholesterol, triglycerides (TG) and transaminases were assessed by routine methods or ELISA. Akt and ACC phosphorylation were analyzed by WB in the soleus. Mitochondrial density, inflammation, and the gene expression of 17 myokines and the apelin receptor (Apj) were assessed by qPCR in the gastrocnemius. We found that HF diet-fed rats were insulin resistant and Akt phosphorylation decreased in the soleus muscle, but without any change in Glut4 gene expression. Systemic (IL-6) and muscle inflammation (NFκB and IκB) were not affected by the HF diets as well as TBARS, and ASAT level was enhanced with OO diet. Soleus pACC phosphorylation and gastrocnemius mitochondrial density were not significantly altered. The gene expression of some myokines was respectively increased (myostatin and Il-15) and decreased (Fndc5 and apelin) with the HF diets, whatever the type of fat used. The gene expression of two myokines with anti-inflammatory properties, Il-10 and myonectin, was dependent on the type of fat used and was most increased respectively with cPO or both rPO and OO diets. In conclusion, high-fat diets can differentially modulate the expression of some myokines, either in a dependent manner or independently of their composition.
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Affiliation(s)
- Chantal Gauze-Gnagne
- Laboratoire de Biochimie, CHU, Univ. Félix Houphouët-Boigny, Cocody, Abidjan, Côte d'Ivoire. and Institut National d'Hygiène Publique, INHP, Treichville, Abidjan, Côte d'Ivoire and PhyMedExp, Univ. Montpellier, INSERM, CNRS, Montpellier, France
| | - Fabrice Raynaud
- PhyMedExp, Univ. Montpellier, INSERM, CNRS, Montpellier, France
| | - Youzan Ferdinand Djohan
- Laboratoire de Biochimie, CHU, Univ. Félix Houphouët-Boigny, Cocody, Abidjan, Côte d'Ivoire.
| | - Céline Lauret
- PhyMedExp, Univ. Montpellier, INSERM, CNRS, Montpellier, France
| | | | | | - Absalome Monde
- Laboratoire de Biochimie, CHU, Univ. Félix Houphouët-Boigny, Cocody, Abidjan, Côte d'Ivoire.
| | - Gervais Koffi
- Laboratoire de Biochimie, CHU, Univ. Félix Houphouët-Boigny, Cocody, Abidjan, Côte d'Ivoire. and PhyMedExp, Univ. Montpellier, INSERM, CNRS, Montpellier, France
| | - Marion Morena
- PhyMedExp, Univ Montpellier, INSERM, CNRS, Département de Biochimie et Hormonologie, CHU Montpellier, Montpellier, France
| | - Massara Camara-Cisse
- Laboratoire de Biochimie, CHU, Univ. Félix Houphouët-Boigny, Cocody, Abidjan, Côte d'Ivoire.
| | - Jean Paul Cristol
- PhyMedExp, Univ Montpellier, INSERM, CNRS, Département de Biochimie et Hormonologie, CHU Montpellier, Montpellier, France
| | - Eric Badia
- PhyMedExp, Univ. Montpellier, INSERM, CNRS, Montpellier, France
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Rajna A, Gibling H, Sarr O, Matravadia S, Holloway GP, Mutch DM. Alpha-linolenic acid and linoleic acid differentially regulate the skeletal muscle secretome of obese Zucker rats. Physiol Genomics 2018; 50:580-589. [PMID: 29727591 DOI: 10.1152/physiolgenomics.00038.2018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Evidence shows that proteins secreted from skeletal muscle influence a broad range of metabolic signaling pathways. We previously reported that essential polyunsaturated fatty acids (PUFA) improved whole-body glucose homeostasis in obese Zucker rats; however, the mechanisms underlying these benefits remain enigmatic. While PUFA and obesity influence skeletal muscle function, their effects on the secretome are unknown. The aim of this work was to determine if improvements in whole-body glucose homeostasis in obese Zucker rats fed diets supplemented with either linoleic acid (LA) or alpha-linolenic acid (ALA) for 12 wk are related to changes in the skeletal muscle secretome. Secreted proteins were identified with a predictive bioinformatic analysis of microarray gene expression from red tibialis anterior skeletal muscle. Approximately 130 genes were differentially expressed (false discovery rate = 0.05) in obese rats compared with lean controls. The expression of 15 genes encoding secreted proteins was differentially regulated in obese controls, obese LA-supplemented, and obese ALA-supplemented rats compared with lean controls. Five secreted proteins ( Col3a1, Col15a1, Pdgfd, Lyz2, and Angptl4) were differentially regulated by LA and ALA. Most notably, ALA supplementation reduced Angptl4 gene expression compared with obese control and obese-LA supplemented rats and reduced circulating ANGPTL4 serum concentrations. ALA also influenced Angptl4 gene expression and ANGPTL4 secretion from differentiated rat L6 myotubes. Altogether, the present data indicate that obesity has a greater global impact on skeletal muscle gene expression than either essential PUFA; however, LA and ALA may exert their metabolic benefits in part by regulating the skeletal muscle secretome.
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Affiliation(s)
- Alex Rajna
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, Ontario , Canada
| | - Heather Gibling
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, Ontario , Canada
| | - Ousseynou Sarr
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, Ontario , Canada
| | - Sarthak Matravadia
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, Ontario , Canada
| | - Graham P Holloway
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, Ontario , Canada
| | - David M Mutch
- Department of Human Health and Nutritional Sciences, University of Guelph , Guelph, Ontario , Canada
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