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Sun H, Sun J, Li M, Qian L, Zhang L, Huang Z, Shen Y, Law BYK, Liu L, Gu X. Transcriptome Analysis of Immune Receptor Activation and Energy Metabolism Reduction as the Underlying Mechanisms in Interleukin-6-Induced Skeletal Muscle Atrophy. Front Immunol 2021; 12:730070. [PMID: 34552592 PMCID: PMC8450567 DOI: 10.3389/fimmu.2021.730070] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/17/2021] [Indexed: 12/30/2022] Open
Abstract
Background Inflammation may trigger skeletal muscle atrophy induced by cancer cachexia. As a pro-inflammatory factor, interleukin-6 may cause skeletal muscle atrophy, but the underlying molecular mechanisms have not been explored. Methods In this experimental study, we used adult male ICR mice, weighing 25 ± 2 g, and the continuous infusion of interleukin-6 into the tibialis anterior muscle to construct a skeletal muscle atrophy model (experimental group). A control group received a saline infusion. RNA-sequencing was used to analyze the differentially expressed genes in tissue samples after one and three days. Gene Ontology and the Kyoto Encyclopedia of Genes and Genomes analysis were applied to define the function of these genes, and protein-protein interaction analysis was performed to identify potential transcription factors. Fluorescence microscopy was used to determine the muscle fiber cross-sectional area after 14 days. Results Continuous infusion of interleukin-6 for 14 days caused significant muscle atrophy. RNA-sequencing found 359 differentially expressed genes in the 1- and 3-day tissue samples and 1748 differentially expressed genes only in the 3-day samples. Functional analysis showed that the differentially expressed genes found in both the 1- and 3-day samples were associated with immune receptor activation, whereas the differentially expressed genes found only in the 3-day sample were associated with reduced energy metabolism. The expression of multiple genes in the oxidative phosphorylation and tricarboxylic acid cycle pathways was down-regulated. Furthermore, differentially expressed transcription factors were identified, and their interaction with interleukin-6 and the differentially expressed genes was predicted, which indicated that STAT3, NF-κB, TP53 and MyoG may play an important role in the process of interleukin-6-induced muscle atrophy. Conclusions This study found that interleukin-6 caused skeletal muscle atrophy through immune receptor activation and a reduction of the energy metabolism. Several transcription factors downstream of IL-6 have the potential to become new regulators of skeletal muscle atrophy. This study not only enriches the molecular regulation mechanism of muscle atrophy, but also provides a potential target for targeted therapy of muscle atrophy.
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Affiliation(s)
- Hualin Sun
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, Macau, SAR China
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, National Medical Products Administration Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong, China
| | - Junjie Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, National Medical Products Administration Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong, China
| | - Ming Li
- Department of Laboratory Medicine, Binhai County People’s Hospital Affiliated to Kangda College of Nanjing Medical University, Yancheng, China
| | - Lei Qian
- Department of Laboratory Medicine, Binhai County People’s Hospital Affiliated to Kangda College of Nanjing Medical University, Yancheng, China
| | - Lilei Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, National Medical Products Administration Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong, China
| | - Ziwei Huang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, National Medical Products Administration Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong, China
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Emergency, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, National Medical Products Administration Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong, China
| | - Betty Yuen-Kwan Law
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, Macau, SAR China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, Macau, SAR China
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, National Medical Products Administration Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong, China
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Kiran S, Dwivedi P, Kumar V, Price RL, Singh UP. Immunomodulation and Biomaterials: Key Players to Repair Volumetric Muscle Loss. Cells 2021; 10:cells10082016. [PMID: 34440785 PMCID: PMC8394423 DOI: 10.3390/cells10082016] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/27/2021] [Accepted: 08/03/2021] [Indexed: 11/21/2022] Open
Abstract
Volumetric muscle loss (VML) is defined as a condition in which a large volume of skeletal muscle is lost due to physical insult. VML often results in a heightened immune response, resulting in significant long-term functional impairment. Estimates indicate that ~250,000 fractures occur in the US alone that involve VML. Currently, there is no active treatment to fully recover or repair muscle loss in VML patients. The health economics burden due to VML is rapidly increasing around the world. Immunologists, developmental biologists, and muscle pathophysiologists are exploring both immune responses and biomaterials to meet this challenging situation. The inflammatory response in muscle injury involves a non-specific inflammatory response at the injured site that is coordination between the immune system, especially macrophages and muscle. The potential role of biomaterials in the regenerative process of skeletal muscle injury is currently an important topic. To this end, cell therapy holds great promise for the regeneration of damaged muscle following VML. However, the delivery of cells into the injured muscle site poses a major challenge as it might cause an adverse immune response or inflammation. To overcome this obstacle, in recent years various biomaterials with diverse physical and chemical nature have been developed and verified for the treatment of various muscle injuries. These biomaterials, with desired tunable physicochemical properties, can be used in combination with stem cells and growth factors to repair VML. In the current review, we focus on how various immune cells, in conjunction with biomaterials, can be used to promote muscle regeneration and, most importantly, suppress VML pathology.
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Affiliation(s)
- Sonia Kiran
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (V.K.)
| | - Pankaj Dwivedi
- Department of Pharmaceutical and Administrative Sciences, University of Health Science and Pharmacy, St. Louis, MO 63110, USA;
| | - Vijay Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (V.K.)
| | - Robert L. Price
- Department of Cell and Developmental Biology, University of South Carolina, Columbia, SC 29208, USA;
| | - Udai P. Singh
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN 38163, USA; (S.K.); (V.K.)
- Correspondence:
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Nardone OM, de Sire R, Petito V, Testa A, Villani G, Scaldaferri F, Castiglione F. Inflammatory Bowel Diseases and Sarcopenia: The Role of Inflammation and Gut Microbiota in the Development of Muscle Failure. Front Immunol 2021; 12:694217. [PMID: 34326845 PMCID: PMC8313891 DOI: 10.3389/fimmu.2021.694217] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
Sarcopenia represents a major health burden in industrialized country by reducing substantially the quality of life. Indeed, it is characterized by a progressive and generalized loss of muscle mass and function, leading to an increased risk of adverse outcomes and hospitalizations. Several factors are involved in the pathogenesis of sarcopenia, such as aging, inflammation, mitochondrial dysfunction, and insulin resistance. Recently, it has been reported that more than one third of inflammatory bowel disease (IBD) patients suffered from sarcopenia. Notably, the role of gut microbiota (GM) in developing muscle failure in IBD patient is a matter of increasing interest. It has been hypothesized that gut dysbiosis, that typically characterizes IBD, might alter the immune response and host metabolism, promoting a low-grade inflammation status able to up-regulate several molecular pathways related to sarcopenia. Therefore, we aim to describe the basis of IBD-related sarcopenia and provide the rationale for new potential therapeutic targets that may regulate the gut-muscle axis in IBD patients.
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Affiliation(s)
- Olga Maria Nardone
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Roberto de Sire
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Valentina Petito
- Department of Medicine and Translational Surgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, University Cattolica del Sacro Cuore, Rome, Italy
| | - Anna Testa
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Guido Villani
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
| | - Franco Scaldaferri
- Department of Medicine and Translational Surgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, University Cattolica del Sacro Cuore, Rome, Italy
| | - Fabiana Castiglione
- Gastroenterology, Department of Clinical Medicine and Surgery, University Federico II of Naples, Naples, Italy
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Caballero-García A, Córdova-Martínez A, Vicente-Salar N, Roche E, Pérez-Valdecantos D. Vitamin D, Its Role in Recovery after Muscular Damage Following Exercise. Nutrients 2021; 13:nu13072336. [PMID: 34371846 PMCID: PMC8308579 DOI: 10.3390/nu13072336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 02/07/2023] Open
Abstract
Aside from its role in bone metabolism, vitamin D is a key immunomodulatory micronutrient. The active form of vitamin D (1,25(OH)D) seems to modulate the innate immune system through different mechanisms. The vitamin is involved in the differentiation of monocytes into macrophages, increasing the phagocytic and chemotactic functions of these cells. At the same time, vitamin D enables efferocytosis and prevents immunopathology. In addition, vitamin D is involved in other processes related to immune function, such as inflammation. Regarding muscle tissue, vitamin D plays an active role in muscle inflammatory response, protein synthesis, and regulation of skeletal muscle function. Two mechanisms have been proposed: A direct role of 1,25(OH)D binding to vitamin D receptors (VDRs) in muscle cells and the modulation of calcium transport in the sarcoplasmic reticulum. This second mechanism needs additional investigation. In conclusion, vitamin D seems to be effective in cases of deficiency and/or if there is a great muscular commitment, such as in high intensity exercises.
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Affiliation(s)
- Alberto Caballero-García
- Department of Anatomy and Radiology, Health Sciences Faculty, GIR: “Physical Exercise and Aging”, Campus Universitario “Los Pajaritos”, University of Valladolid, 42004 Soria, Spain
- Correspondence: ; Tel.: +34-649-827-663
| | - Alfredo Córdova-Martínez
- Department of Biochemistry, Molecular Biology and Physiology, Health Sciences Faculty, GIR: “Physical Exercise and Aging”, Campus Universitario “Los Pajaritos”, University of Valladolid, 42004 Soria, Spain; (A.C.-M.); (D.P.-V.)
| | - Néstor Vicente-Salar
- Department of Applied Biology-Nutrition, Institute of Bioengineering, University Miguel Hernández, 03202 Elche, Spain; (N.V.-S.); (E.R.)
- Alicante Institute for Health and Biomedical Research (ISABIAL), 03010 Alicante, Spain
| | - Enrique Roche
- Department of Applied Biology-Nutrition, Institute of Bioengineering, University Miguel Hernández, 03202 Elche, Spain; (N.V.-S.); (E.R.)
- Alicante Institute for Health and Biomedical Research (ISABIAL), 03010 Alicante, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Daniel Pérez-Valdecantos
- Department of Biochemistry, Molecular Biology and Physiology, Health Sciences Faculty, GIR: “Physical Exercise and Aging”, Campus Universitario “Los Pajaritos”, University of Valladolid, 42004 Soria, Spain; (A.C.-M.); (D.P.-V.)
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Shou J, Shi X, Liu X, Chen Y, Chen P, Xiao W. Programmed death-1 promotes contused skeletal muscle regeneration by regulating Treg cells and macrophages. J Transl Med 2021; 101:719-732. [PMID: 33674785 PMCID: PMC8137453 DOI: 10.1038/s41374-021-00542-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 01/07/2021] [Accepted: 01/13/2021] [Indexed: 12/19/2022] Open
Abstract
Immune cells are involved in skeletal muscle regeneration. The mechanism by which Treg cells are involved in the regeneration of injured skeletal muscle is still unclear. The purpose of this study was to explore the role of programmed death-1 in contused skeletal muscle regeneration, and to clarify the regulation of programmed death-1 on Treg cell generation and macrophage polarization, in order to deepen our understanding of the relationship between the immune system and injured skeletal muscle regeneration. The results show that programmed death-1 knockdown reduced the number of Treg cells and impaired contused skeletal muscle regeneration compared with those of wild-type mice. The number of pro-inflammatory macrophages in the contused skeletal muscle of programmed death-1 knockout mice increased, and the expression of pro-inflammatory factors and oxidative stress factors increased, while the number of anti-inflammatory macrophages and the expression of anti-inflammatory factors, antioxidant stress factors, and muscle regeneration-related factors decreased. These results suggest that programmed death-1 can promote contused skeletal muscle regeneration by regulating Treg cell generation and macrophage polarization.
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Affiliation(s)
- Jian Shou
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Xinjuan Shi
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Xiaoguang Liu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yingjie Chen
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Peijie Chen
- School of Kinesiology, Shanghai University of Sport, Shanghai, China.
| | - Weihua Xiao
- School of Kinesiology, Shanghai University of Sport, Shanghai, China.
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Hymel LA, Ogle ME, Anderson SE, San Emeterio CL, Turner TC, York WY, Liu AY, Olingy CE, Sridhar S, Lim HS, Sulchek T, Qiu P, Jang YC, Willett NJ, Botchwey EA. Modulating local S1P receptor signaling as a regenerative immunotherapy after volumetric muscle loss injury. J Biomed Mater Res A 2021; 109:695-712. [PMID: 32608188 PMCID: PMC7772280 DOI: 10.1002/jbm.a.37053] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/08/2020] [Accepted: 06/12/2020] [Indexed: 12/17/2022]
Abstract
Regeneration of skeletal muscle after volumetric injury is thought to be impaired by a dysregulated immune microenvironment that hinders endogenous repair mechanisms. Such defects result in fatty infiltration, tissue scarring, chronic inflammation, and debilitating functional deficits. Here, we evaluated the key cellular processes driving dysregulation in the injury niche through localized modulation of sphingosine-1-phosphate (S1P) receptor signaling. We employ dimensionality reduction and pseudotime analysis on single cell cytometry data to reveal heterogeneous immune cell subsets infiltrating preclinical muscle defects due to S1P receptor inhibition. We show that global knockout of S1P receptor 3 (S1PR3) is marked by an increase of muscle stem cells within injured tissue, a reduction in classically activated relative to alternatively activated macrophages, and increased bridging of regenerating myofibers across the defect. We found that local S1PR3 antagonism via nanofiber delivery of VPC01091 replicated key features of pseudotime immune cell recruitment dynamics and enhanced regeneration characteristic of global S1PR3 knockout. Our results indicate that local S1P receptor modulation may provide an effective immunotherapy for promoting a proreparative environment leading to improved regeneration following muscle injury.
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Affiliation(s)
- Lauren A. Hymel
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Molly E. Ogle
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Shannon E. Anderson
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | | | - Thomas C. Turner
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - William Y. York
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Alan Y. Liu
- School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Claire E. Olingy
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Sraeyes Sridhar
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Hong Seo Lim
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Todd Sulchek
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA 30332
- School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Peng Qiu
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
| | - Young C. Jang
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA 30332
| | - Nick J. Willett
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
- Department of Orthopedics, Emory University, Atlanta, GA, USA 30322
- Atlanta Veteran’s Affairs Medical Center, Decatur, GA, 30030
| | - Edward A. Botchwey
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
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Cao X, Zhang M, Lu Z, Li C, Zeng Y, Fan J, Yu K. Multiple neurological manifestations in a patient with systemic lupus erythematosus and anti-NXP2-positive myositis: A case report. Medicine (Baltimore) 2021; 100:e25063. [PMID: 33725895 PMCID: PMC7969320 DOI: 10.1097/md.0000000000025063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/15/2021] [Indexed: 01/05/2023] Open
Abstract
RATIONALE Systemic lupus erythematosus (SLE) is a complex autoimmune inflammatory disease that frequently affects various organs. Neuropsychiatric manifestations in SLE patients, known as neuropsychiatric SLE, are clinically common. However, the principal manifestation of cranial neuropathy in patients with SLE and comorbidities is relatively rare. PATIENT CONCERNS In this report, we describe a 51-year-old Chinese woman who was admitted with a chief complaint of chronic-onset facial paresthesia, dysphagia, and choking cough when drinking water, accompanied by slurred speech, salivation, and limb weakness. The blood autoantibody test results showed that many SLE-associated antibodies were positive. Meanwhile, anti-nuclear matrix protein 2 (NXP2) antibody was strongly positive in the idiopathic inflammatory myopathy (IIM) spectrum test from the serum. Muscle biopsy indicated inflammatory infiltration of the muscle fiber stroma. DIAGNOSES Taking into account the clinical manifestations and laboratory tests of the present case, the diagnosis of SLE and probable IIM was established. INTERVENTIONS Corticosteroids and additional gamma globulin were administered and the clinical symptoms were relieved during the treatment process. OUTCOMES Unfortunately, the patient experienced sudden cardiac and respiratory arrest. Multiple system dysfunctions exacerbated disease progression, but in the present case, we speculated that myocardial damage resulting from SLE could explain why she suddenly died. LESSONS To our knowledge, multiple neurological manifestations in patients with SLE and anti-NXP2-positive myositis are rare. Note that SLE is still a life-threatening disease that causes multiple system dysfunctions, which requires increasing attention.
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Luo Z, Lin J, Sun Y, Wang C, Chen J. Bone Marrow Stromal Cell-Derived Exosomes Promote Muscle Healing Following Contusion Through Macrophage Polarization. Stem Cells Dev 2021; 30:135-148. [PMID: 33323007 DOI: 10.1089/scd.2020.0167] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Skeletal muscle contusion is among the most common injuries in traumatology and clinics of sports medicine. The injured muscle is vulnerable to re-injury owing to fibrosis formation. Given that the bone marrow stromal cell-derived exosomes (BMSC-Exos) displayed promising therapeutic effect for various tissues, we used BMSC-Exos to treat skeletal muscle contusion and investigated its effects on muscle healing. In this study, the in vivo model of skeletal muscle contusion was established by subjecting the tibialis anterior of young male mice to hit injury, and the in vitro inflammation model was established by lipopolysaccharide treatment on macrophages. Macrophage depletion model was built by intraperitoneal injection with clodronate-containing liposomes. Exosomes were isolated and purified from the supernatant of BMSCs using gradient centrifugation. Nanoparticle tracking analysis, transmission electron microscope, and western blot were used to identify the exosomes. HE stain, Masson stain, immunofluorescence, and biomechanical testing were carried out on the muscle tissue. In addition, enzyme-linked immunosorbent assay (ELISA) assays, real-time qPCR, flow cytometry, and PKH67 fluorescence trace were conducted in vitro. Intramuscular injection of BMSC-Exos to mice after muscle contusion alleviated inflammation level, reduced fibrosis size, promoted muscle regeneration, and improved biomechanical property. After macrophages depletion, the effects of BMSC-Exos were inhibited. In vitro, PKH-67 fluorescence was internalized into macrophages. BMSC-Exos promoted M2 macrophages polarization both in vivo and in vitro. At the same time, BMSC-Exos reduced the production of inflammatory cytokines under the inflammatory microenvironment and upregulated anti-inflammatory factors expression. In conclusion, BMSC-Exos attenuated muscle contusion injury and promoted muscle healing in mice by modifying the polarization status of macrophages and suppressing the inflammatory reaction.
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Affiliation(s)
- Zhiwen Luo
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Jinrong Lin
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yaying Sun
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Chenghui Wang
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Jiwu Chen
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
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Abstract
Skeletal muscles secrete various factors, such as proteins/peptides, nucleotides, and metabolites, which are referred to as myokines. Many of these factors are transported into extracellular bodily fluids in a free or protein-bound form. Furthermore, several secretory factors have been shown to be wrapped up by small vesicles, particularly exosomes, secreted into circulation, and subsequently regulate recipient cells. Thus, exosome contents can be recognized as myokines. In recipient cells, proteins, microRNAs, and metabolites in exosomes can regulate the expression and activity of target proteins associated with nutrient metabolism and immune function. The levels of circulating exosomes and their contents are altered in muscle disorders and metabolic-related states, such as metabolic dysfunction, sarcopenia, and physical fitness. Therefore, such circulating factors could mediate various interactions between skeletal muscle and other organs and may be useful as biomarkers reflecting physiological and pathological states associated with muscular function. Here, this review summarizes secretory regulation of muscle-derived exosomes. Their metabolic and immunological roles and the significance of their circulating levels are also discussed.
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Affiliation(s)
- Wataru Aoi
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
- *Correspondence: Wataru Aoi,
| | - Yuko Tanimura
- Department of Sport Research, Japan Institute of Sports Sciences, Tokyo, Japan
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10
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Siah A, Knutsen E, Richmond Z, Mills M, Frisch K, Powell JFF, Brevik Ø, Duesund H. Real-time RT-qPCR assay to detect sequences in the Piscine orthoreovirus-1 genome segment S1 associated with heart and skeletal muscle inflammation in Atlantic salmon. J Fish Dis 2020; 43:955-962. [PMID: 32608050 DOI: 10.1111/jfd.13205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 06/11/2023]
Abstract
During the last decade, Piscine orthoreovirus was identified as the main causative agent of heart and skeletal muscle inflammation (HSMI) in Atlantic Salmon, Norway. A recent study showed that PRV-1 sequences from salmonid collected in North Atlantic Pacific Coast (NAPC) grouped separately from the Norwegian sequences found in Atlantic Salmon diagnosed with HSMI. Currently, the routine assay used to screen for PRV-1 in NAPC water and worldwide cannot differentiate between the two groups of PRV-1. Therefore, this study aimed at developing a real-time polymerase chain reaction (RT-qPCR) assay to target the PRV-1 genome segments specific for variants associated with HSMI. The assay was optimized and tested against 71 tissue samples collected from different regions including Norway, Chile and both coast of Canada and different hosts farmed Atlantic Salmon, wild Coho Salmon and escaped Atlantic Salmon collected in British Columbia, West Coast of Canada. This assay has the potential to be used for screening salmonids and non-salmonids that may carry PRV-1 potentially causing HSMI.
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Affiliation(s)
- Ahmed Siah
- British Columbia Centre for Aquatic Health Sciences, Campbell River, BC, Canada
| | | | - Zina Richmond
- British Columbia Centre for Aquatic Health Sciences, Campbell River, BC, Canada
| | | | | | - James F F Powell
- British Columbia Centre for Aquatic Health Sciences, Campbell River, BC, Canada
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Abstract
PURPOSE OF REVIEW The age-related loss of skeletal muscle and bone tissue decreases functionality and increases the risk for falls and injuries. One contributing factor of muscle and bone loss over time is chronic low-grade inflammation. Exercise training is an effective countermeasure for decreasing the loss of muscle and bone tissue, possibly by enhancing immune system response. Herein, we discuss key interactions between the immune system, muscle, and bone in relation to exercise perturbations, and we identify that there is substantial "cross-talk" between muscle and bone and the immune system in response to exercise. RECENT FINDINGS Recent advances in our understanding of the "cross-talk" between muscle and bone and the immune system indicate that exercise is likely to mediate many of the beneficial effects on muscle and bone via their interactions with the immune system. The age-related loss of muscle and bone tissue may be partially explained by an impaired immune system via chronic low-grade inflammation. Exercise training has a beneficial effect on immune system function and aging muscle and bone. Theoretically, the "cross-talk" between the immune system, muscle, and bone in response to exercise enhances aging musculoskeletal health.
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Affiliation(s)
- Stephen M Cornish
- Faculty of Kinesiology and Recreation Management, University of Manitoba, 117 Frank Kennedy Centre, Winnipeg, Manitoba, R3T 2N2, Canada.
| | - Philip D Chilibeck
- College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Darren G Candow
- Faculty of Kinesiology and Health Studies, University of Regina, Regina, Saskatchewan, Canada
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12
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Sansbury BE, Li X, Wong B, Patsalos A, Giannakis N, Zhang MJ, Nagy L, Spite M. Myeloid ALX/FPR2 regulates vascularization following tissue injury. Proc Natl Acad Sci U S A 2020; 117:14354-14364. [PMID: 32513697 PMCID: PMC7321964 DOI: 10.1073/pnas.1918163117] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Ischemic injury initiates a sterile inflammatory response that ultimately participates in the repair and recovery of tissue perfusion. Macrophages are required for perfusion recovery during ischemia, in part because they produce growth factors that aid in vascular remodeling. The input signals governing this pro-revascularization phenotype remain of interest. Here we found that hindlimb ischemia increases levels of resolvin D1 (RvD1), an inflammation-resolving lipid mediator that targets macrophages via its receptor, ALX/FPR2. Exogenous RvD1 enhances perfusion recovery during ischemia, and mice deficient in Alx/Fpr2 have an endogenous defect in this process. Mechanistically, RNA sequencing revealed that RvD1 induces a transcriptional program in macrophages characteristic of a pro-revascularization phenotype. Vascularization of ischemic skeletal muscle, as well as cutaneous wounds, is impaired in mice with myeloid-specific deficiency of Alx/Fpr2, and this is associated with altered expression of pro-revascularization genes in skeletal muscle and macrophages isolated from skeletal muscle. Collectively, these results uncover a role of ALX/FPR2 in revascularization that may be amenable to therapeutic targeting in diseases associated with altered tissue perfusion and repair.
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MESH Headings
- Animals
- Cells, Cultured
- Disease Models, Animal
- Docosahexaenoic Acids/metabolism
- Female
- Gene Knockout Techniques
- Humans
- Ischemia/immunology
- Ischemia/pathology
- Macrophages/immunology
- Macrophages/metabolism
- Male
- Mice
- Mice, Knockout
- Muscle, Skeletal/blood supply
- Muscle, Skeletal/immunology
- Muscle, Skeletal/pathology
- Neovascularization, Physiologic/immunology
- Primary Cell Culture
- RNA-Seq
- Receptors, Formyl Peptide/genetics
- Receptors, Formyl Peptide/metabolism
- Receptors, Lipoxin/genetics
- Receptors, Lipoxin/metabolism
- Signal Transduction/immunology
- Skin/blood supply
- Skin/immunology
- Skin/injuries
- Skin/pathology
- Transcription, Genetic/immunology
- Wound Healing/immunology
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Affiliation(s)
- Brian E Sansbury
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Xiaofeng Li
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Blenda Wong
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Andreas Patsalos
- Department of Medicine, Johns Hopkins University School of Medicine and Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
- Department of Biological Chemistry, Johns Hopkins University School of Medicine and Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
| | - Nikolas Giannakis
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Michael J Zhang
- Department of Medicine, University of Minnesota Medical School, Minneapolis, MN 55455
| | - Laszlo Nagy
- Department of Medicine, Johns Hopkins University School of Medicine and Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
- Department of Biological Chemistry, Johns Hopkins University School of Medicine and Johns Hopkins All Children's Hospital, St. Petersburg, FL 33701
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Matthew Spite
- Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115;
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13
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Abstract
Dermatomyositis is a rare inflammatory disease with characteristic cutaneous findings and varying amounts of systemic involvement. Patients may present with skin disease alone, have concomitant muscle disease, or have extracutaneous manifestations such as pulmonary disease or an associated malignancy. Given such diverse presentations, dermatomyositis is both a diagnostic and therapeutic challenge. However, a prompt diagnosis is of utmost importance to institute adequate therapy and screen patients for an associated malignancy. Dermatologists should play a crucial role in the diagnosis and management of patients with dermatomyositis as cutaneous disease tends to be chronic, negatively impact quality of life, and be more recalcitrant to therapy. In this review, we discuss diagnosis, with a focus on myositis-specific antibodies and their associated phenotypes. We also review therapies available for this often refractory skin disease.
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Affiliation(s)
- Gabriela A Cobos
- Autoimmune Skin Disease Program, Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA
| | - Alisa Femia
- Ronald O. Perelman Department of Dermatology, New York University Langone Medical Center, New York University School of Medicine, New York, NY, USA
| | - Ruth Ann Vleugels
- Autoimmune Skin Disease Program, Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA.
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14
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Liu Y, Xu F, Jiang P. Effect of sitagliptin on expression of skeletal muscle peroxisome proliferator-activated receptor γ coactivator-1 α and irisin in a rat model of type 2 diabetes mellitus. J Int Med Res 2020; 48:300060519885569. [PMID: 32364035 PMCID: PMC7218978 DOI: 10.1177/0300060519885569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 10/07/2019] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To evaluate the effect of sitagliptin on skeletal muscle expression of peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α), irisin, and phosphoadenylated adenylate activated protein kinase (p-AMPK) in a rat model of type 2 diabetes mellitus (T2DM). METHODS A high-fat diet/streptozotocin T2DM rat model was established. Rats were divided into T2DM, low-dose sitagliptin (ST1), high-dose sitagliptin (ST2), and normal control groups (NC). PGC-1α, irisin, and p-AMPK protein levels in skeletal muscle were measured by western blot, and PCG-1α and Fndc5 mRNA levels were assessed by reverse transcription-polymerase chain reaction. RESULTS Fasting plasma glucose (FPG), fasting insulin (FIns), homeostatic model assessment-insulin resistance (HOMA-IR), and tumor necrosis factor-α (TNF-α) were significantly up-regulated in the T2DM compared with the other groups, and FPG, FIns, total cholesterol, triglycerides, TNF-α, and HOMA-IR were significantly down-regulated in the ST2 compared with the ST1 group. PGC-1α, irisin, and p-AMPK expression levels decreased successively in the ST2, ST1, and DM groups compared with the NC, and were all significantly up-regulated in the ST2 compared with the ST1 group. CONCLUSION Down-regulation of PGC-1α and irisin in skeletal muscle may be involved in T2DM. Sitagliptin can dose-dependently up-regulate PCG-1α and irisin, potentially improving insulin resistance and glycolipid metabolism and inhibiting inflammation.
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MESH Headings
- AMP-Activated Protein Kinase Kinases
- Animals
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/etiology
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/etiology
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Diet, High-Fat/adverse effects
- Dose-Response Relationship, Drug
- Down-Regulation
- Fibronectins/analysis
- Fibronectins/metabolism
- Glycolipids/metabolism
- Humans
- Hypoglycemic Agents/administration & dosage
- Male
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/immunology
- Muscle, Skeletal/metabolism
- Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/analysis
- Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/metabolism
- Protein Kinases/analysis
- Protein Kinases/metabolism
- Rats
- Sitagliptin Phosphate/administration & dosage
- Streptozocin/toxicity
- Up-Regulation
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Affiliation(s)
- Yuntao Liu
- Department of Endocrinology, Affiliated Renhe Hospital of China Three Gorges University, The Second Clinical Medical College of China Three Gorges University, Yichang, China
| | - Feng Xu
- Yichang Hospital of Traditional Chinese Medicine, Clinical Medical College of Traditional Chinese Medicine, China Three Gorges University, Yichang, China
| | - Pan Jiang
- Department of Endocrinology, Affiliated Renhe Hospital of China Three Gorges University, The Second Clinical Medical College of China Three Gorges University, Yichang, China
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15
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Nakamura K, Sugai A, Saji E, Kasuga K, Onodera O. Refractory Myositis Affecting the Intrinsic Muscles of the Hand. Intern Med 2020; 59:1211-1214. [PMID: 31956201 PMCID: PMC7270759 DOI: 10.2169/internalmedicine.3773-19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Myositis generally affects the proximal muscles. However, we herein report a case of a 48-year-old woman with intractable myositis affecting the intrinsic muscles of the hands. Her myositis, which developed in childhood, was refractory to treatment with steroids and several immunosuppressants, causing walking disability. After experiencing pain and swelling in the hands for six months, she was diagnosed with myositis of the intrinsic muscles of the hands and tested positive for the anti-signal recognition particle antibody. Intravenous immunoglobulin therapy improved the myositis of the hands. This case suggests that inflammation caused by intractable myositis can extend to the hands.
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Affiliation(s)
- Kosei Nakamura
- Department of Neurology, Brain Research Institute, Niigata University, Japan
| | - Akihiro Sugai
- Department of Neurology, Brain Research Institute, Niigata University, Japan
| | - Etsuji Saji
- Department of Neurology, Brain Research Institute, Niigata University, Japan
| | - Kensaku Kasuga
- Department of Molecular Genetics, Center for Bioresources, Brain Research Institute, Niigata University, Japan
| | - Osamu Onodera
- Department of Neurology, Brain Research Institute, Niigata University, Japan
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16
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Stepien DM, Hwang C, Marini S, Pagani CA, Sorkin M, Visser ND, Huber AK, Edwards NJ, Loder SJ, Vasquez K, Aguilar CA, Kumar R, Mascharak S, Longaker MT, Li J, Levi B. Tuning Macrophage Phenotype to Mitigate Skeletal Muscle Fibrosis. J Immunol 2020; 204:2203-2215. [PMID: 32161098 PMCID: PMC8080967 DOI: 10.4049/jimmunol.1900814] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 01/20/2020] [Indexed: 12/16/2022]
Abstract
Myeloid cells are critical to the development of fibrosis following muscle injury; however, the mechanism of their role in fibrosis formation remains unclear. In this study, we demonstrate that myeloid cell-derived TGF-β1 signaling is increased in a profibrotic ischemia reperfusion and cardiotoxin muscle injury model. We found that myeloid-specific deletion of Tgfb1 abrogates the fibrotic response in this injury model and reduces fibro/adipogenic progenitor cell proliferation while simultaneously enhancing muscle regeneration, which is abrogated by adaptive transfer of normal macrophages. Similarly, a murine TGFBRII-Fc ligand trap administered after injury significantly reduced muscle fibrosis and improved muscle regeneration. This study ultimately demonstrates that infiltrating myeloid cell TGF-β1 is responsible for the development of traumatic muscle fibrosis, and its blockade offers a promising therapeutic target for preventing muscle fibrosis after ischemic injury.
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Affiliation(s)
- David M Stepien
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Charles Hwang
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Simone Marini
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109
| | - Chase A Pagani
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Michael Sorkin
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Noelle D Visser
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Amanda K Huber
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Nicole J Edwards
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Shawn J Loder
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Kaetlin Vasquez
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
| | - Carlos A Aguilar
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109
- Biomedical Engineering Department, Biointerfaces Institute and Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109
| | - Ravi Kumar
- Acceleron Pharmaceuticals, Cambridge MA 02139
| | - Shamik Mascharak
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford University, Stanford, CA 94305; and
| | - Michael T Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford University, Stanford, CA 94305; and
- Institute of Stem Cell Biology and Regenerative Medicine, Stanford School of Medicine, Stanford University, Stanford, CA 94305
| | - Jun Li
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109
| | - Benjamin Levi
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109;
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17
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Shabani M, Sadeghi A, Hosseini H, Teimouri M, Babaei Khorzoughi R, Pasalar P, Meshkani R. Resveratrol alleviates obesity-induced skeletal muscle inflammation via decreasing M1 macrophage polarization and increasing the regulatory T cell population. Sci Rep 2020; 10:3791. [PMID: 32123188 PMCID: PMC7052230 DOI: 10.1038/s41598-020-60185-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 02/07/2020] [Indexed: 12/19/2022] Open
Abstract
Resveratrol was reported to inhibit inflammatory responses; however, the role of this polyphenol in obesity-induced skeletal muscle inflammation remains unknown. Mice fed a high fat diet (HFD) were treated with resveratrol for 16 weeks. Resveratrol treatment decreased macrophage infiltration into skeletal muscle of HFD-fed mice. Resveratrol also led to the polarization of macrophages to the M2 direction, as well as decreasing the expression of a number of M1 pro-inflammatory cytokines [tumor necrosis factor α (TNF-α), interleukin 1 β (IL-1β) and interleukin 6 (IL-6)]. In addition, increased infiltration of regulatory T cells (Treg cells) was found following resveratrol treatment in skeletal muscle of mice. Decreased intramyocellular lipid deposition was associated with reduced expression levels of toll-like receptors 2 (TLR2) and TLR4 in resveratrol treated mice. We also found that diminished inflammation in skeletal muscle following resveratrol treatment was accompanied by increasing phosphorylation of 5'-adenosine monophosphate-activated protein kinase (AMPK) and decreasing phosphorylation of p38 mitogen-activated protein kinase (MAPK) and c-Jun N-terminal kinase (JNK). Taken together, these findings suggest that resveratrol ameliorates inflammation in skeletal muscle of HFD-induced model of obesity. Therefore, resveratrol might represent a potential treatment for attenuation of inflammation in skeletal muscle tissue.
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Affiliation(s)
- Maryam Shabani
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, I.R., Iran
| | - Asie Sadeghi
- Department of Clinical Biochemistry, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Hossein Hosseini
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, I.R., Iran
| | - Maryam Teimouri
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, I.R., Iran
| | - Reyhaneh Babaei Khorzoughi
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, I.R., Iran
| | - Parvin Pasalar
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, I.R., Iran
| | - Reza Meshkani
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, I.R., Iran.
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18
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Long MH, Zhang C, Xu DQ, Fu WL, Gan XD, Li F, Wang Q, Xia W, Xu DG. PM 2.5 aggravates diabetes via the systemically activated IL-6-mediated STAT3/SOCS3 pathway in rats' liver. Environ Pollut 2020; 256:113342. [PMID: 31676093 DOI: 10.1016/j.envpol.2019.113342] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 10/01/2019] [Accepted: 10/02/2019] [Indexed: 06/10/2023]
Abstract
PM2.5 exposure aggravates type 2 diabetes, in which inflammatory factors play an important role. In this study, we aimed to explore the mechanisms responsible for aggravating diabetes after PM2.5 exposure, and study the roles of inflammatory factors in insulin-resistant type 2 diabetes. Our study indicated that short-time PM2.5 exposure enhances insulin resistance in type 2 diabetic rats and significantly raises inflammatory factors, including IL-6, TNF-α, and MCP-1, in lungs. However, we found that of these inflammatory factors only IL-6 levels are elevated in blood, liver, adipose tissue, and macrophages, but not in skeletal muscle. IL-6 induced activation of the STAT3/SOCS3 pathway in liver, but not other downstream pathways including STAT1, ERK1/2, and PI3K. Both STAT3 inhibition and IL-6 neutralization effectively alleviated the disorders of glucose metabolism after PM2.5 exposure. Taken together, this suggests that the systemic increase in IL-6 may play an important role in the deterioration of the type 2 diabetes via IL-6/STAT3/SOCS3 pathway in liver after short-time exposure to PM2.5. Besides, we unexpectedly found a stronger resistance to the PM2.5 exposure-induced increase in IL-6 in skeleton muscle than those of many other tissues.
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Affiliation(s)
- Min-Hui Long
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China; The South China Normal University, Guangzhou, 510631, PR China
| | - Chao Zhang
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China
| | - Dong-Qun Xu
- Institute of Products Related with Environment and Health, China Center for Diseases Control, Beijing, 100080, PR China
| | - Wen-Liang Fu
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China
| | - Xiang-Dong Gan
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China; The South China Normal University, Guangzhou, 510631, PR China
| | - Fei Li
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China
| | - Qin Wang
- Institute of Products Related with Environment and Health, China Center for Diseases Control, Beijing, 100080, PR China
| | - Wenrong Xia
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China
| | - Dong-Gang Xu
- Institute of Military Cognitive and Brain Sciences, Beijing, 100850, PR China.
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19
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Ouisse LH, Remy S, Lafoux A, Larcher T, Tesson L, Chenouard V, Guillonneau C, Brusselle L, Vimond N, Rouger K, Péréon Y, Chenouard A, Gras-Le Guen C, Braudeau C, Josien R, Huchet C, Anegon I. Immunophenotype of a Rat Model of Duchenne's Disease and Demonstration of Improved Muscle Strength After Anti-CD45RC Antibody Treatment. Front Immunol 2019; 10:2131. [PMID: 31552055 PMCID: PMC6746111 DOI: 10.3389/fimmu.2019.02131] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 08/23/2019] [Indexed: 01/25/2023] Open
Abstract
Corticosteroids (CS) are standard therapy for the treatment of Duchenne's muscular dystrophy (DMD). Even though they decrease inflammation, they have limited efficacy and are associated with significant side effects. There is therefore the need for new protolerogenic treatments to replace CS. Dystrophin-deficient rats (Dmdmdx ) closely resemble the pathological phenotype of DMD patients. We performed the first Immunophenotyping of Dmdmdx rats and showed leukocyte infiltration in skeletal and cardiac muscles, which consisted mostly of macrophages and T cells including CD45RChigh T cells. Muscles of DMD patients also contain elevated CD45RChigh T cells. We treated Dmdmdx rats with an anti-CD45RC MAb used in previous studies to deplete CD45RChigh T cells and induce immune tolerance in models of organ transplantation. Treatment of young Dmdmdx rats with anti-CD45RC MAb corrected skeletal muscle strength and was associated with depletion of CD45RChigh T cells with no side effects. Treatment of young Dmdmdx rats with prednisolone resulted in increase in skeletal muscle strength but also severe growth retardation. In conclusion, anti-CD45RC MAb treatment has potential in the treatment of DMD and might eventually result in reduction or elimination of CS use.
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Affiliation(s)
- Laure-Hélène Ouisse
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
- Transgenesis Rat ImmunoPhenomic Facility, CRTI UMR 1064, Nantes, France
| | - Séverine Remy
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
- Transgenesis Rat ImmunoPhenomic Facility, CRTI UMR 1064, Nantes, France
| | - Aude Lafoux
- THERASSAY CAPACITES, Université de Nantes, Nantes, France
| | - Thibaut Larcher
- INRA, UMR703 APEX, Oniris, Ecole Nationale Vétérinaire, Agro-alimentaire et de l'alimentation, Nantes, France
| | - Laurent Tesson
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
- Transgenesis Rat ImmunoPhenomic Facility, CRTI UMR 1064, Nantes, France
| | - Vanessa Chenouard
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
- Transgenesis Rat ImmunoPhenomic Facility, CRTI UMR 1064, Nantes, France
| | - Carole Guillonneau
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
| | - Lucas Brusselle
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
- Transgenesis Rat ImmunoPhenomic Facility, CRTI UMR 1064, Nantes, France
| | - Nadège Vimond
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
| | - Karl Rouger
- INRA, UMR703 APEX, Oniris, Ecole Nationale Vétérinaire, Agro-alimentaire et de l'alimentation, Nantes, France
| | - Yann Péréon
- Reference Centre for Neuromuscular Diseases AOC, CHU Nantes, Nantes, France
| | - Alexis Chenouard
- Pediatric Intensive Care, Hôpital Mère Enfant, CHU Nantes, Nantes, France
| | | | - Cécile Braudeau
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
- CIMNA, Laboratoire d'Immunologie, CHU Nantes, Nantes, France
| | - Régis Josien
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
- CIMNA, Laboratoire d'Immunologie, CHU Nantes, Nantes, France
| | - Corinne Huchet
- THERASSAY CAPACITES, Université de Nantes, Nantes, France
- Thérapie Génique Translationnelle des Maladies Génétiques, INSERM UMR 1089, Nantes, France
| | - Ignacio Anegon
- Centre de Recherche en Transplantation et Immunologie UMR 1064, INSERM, Université de Nantes, Nantes, France
- Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
- Transgenesis Rat ImmunoPhenomic Facility, CRTI UMR 1064, Nantes, France
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20
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Affiliation(s)
- Ikjae Lee
- From the Departments of Neurology (I.L., K.N.) and Medicine (J.B.W., L.L.W.), University of Alabama at Birmingham, Birmingham
| | - Jeremey B Walker
- From the Departments of Neurology (I.L., K.N.) and Medicine (J.B.W., L.L.W.), University of Alabama at Birmingham, Birmingham
| | - Kenkichi Nozaki
- From the Departments of Neurology (I.L., K.N.) and Medicine (J.B.W., L.L.W.), University of Alabama at Birmingham, Birmingham
| | - Lisa L Willett
- From the Departments of Neurology (I.L., K.N.) and Medicine (J.B.W., L.L.W.), University of Alabama at Birmingham, Birmingham
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21
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Reidy PT, McKenzie AI, Mahmassani ZS, Petrocelli JJ, Nelson DB, Lindsay CC, Gardner JE, Morrow VR, Keefe AC, Huffaker TB, Stoddard GJ, Kardon G, O'Connell RM, Drummond MJ. Aging impairs mouse skeletal muscle macrophage polarization and muscle-specific abundance during recovery from disuse. Am J Physiol Endocrinol Metab 2019; 317:E85-E98. [PMID: 30964703 PMCID: PMC6689737 DOI: 10.1152/ajpendo.00422.2018] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Impaired recovery of aged muscle following a disuse event is an unresolved issue facing the older adult population. Although investigations in young animals have suggested that rapid regrowth of skeletal muscle following a disuse event entails a coordinated involvement of skeletal muscle macrophages, this phenomenon has not yet been thoroughly tested as an explanation for impaired muscle recovery in aging. To examine this hypothesis, young (4-5 mo) and old (24-26 mo) male mice were examined as controls following 2 wk of hindlimb unloading (HU) and following 4 (RL4) and 7 (RL7) days of reloading after HU. Muscles were harvested to assess muscle weight, myofiber-specifc cross-sectional area, and skeletal muscle macrophages via immunofluorescence. Flow cytometry was used on gastrocnemius and soleus muscle (at RL4) single-cell suspensions to immunophenotype skeletal muscle macrophages. Our data demonstrated impaired muscle regrowth in aged compared with young mice following disuse, which was characterized by divergent muscle macrophage polarization patterns and muscle-specifc macrophage abundance. During reloading, young mice exhibited the classical increase in M1-like (MHC II+CD206-) macrophages that preceeded the increase in percentage of M2-like macrophages (MHC II-CD206+); however, old mice did not demonstrate this pattern. Also, at RL4, the soleus demonstrated reduced macrophage abundance with aging. Together, these data suggest that dysregulated macrophage phenotype patterns in aged muscle during recovery from disuse may be related to impaired muscle growth. Further investigation is needed to determine whether the dysregulated macrophage response in the old during regrowth from disuse is related to a reduced ability to recruit or activate specific immune cells.
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Affiliation(s)
- Paul T Reidy
- Department of Physical Therapy and Athletic Training, University of Utah , Salt Lake City, Utah
| | - Alec I McKenzie
- Department of Physical Therapy and Athletic Training, University of Utah , Salt Lake City, Utah
| | - Ziad S Mahmassani
- Department of Physical Therapy and Athletic Training, University of Utah , Salt Lake City, Utah
| | - Jonathan J Petrocelli
- Department of Physical Therapy and Athletic Training, University of Utah , Salt Lake City, Utah
| | - Daniel B Nelson
- Department of Nutrition and Integrative Physiology, University of Utah , Salt Lake City, Utah
| | | | - James E Gardner
- School of Medicine, University of Utah , Salt Lake City, Utah
| | - Vincent R Morrow
- Department of Physical Therapy and Athletic Training, University of Utah , Salt Lake City, Utah
| | | | | | - Greg J Stoddard
- Division of Epidemiology, University of Utah, School of Medicine , Salt Lake City, Utah
| | | | - Ryan M O'Connell
- Department of Pathology, University of Utah , Salt Lake City, Utah
| | - Micah J Drummond
- Department of Physical Therapy and Athletic Training, University of Utah , Salt Lake City, Utah
- Department of Nutrition and Integrative Physiology, University of Utah , Salt Lake City, Utah
- Department of Pathology, University of Utah , Salt Lake City, Utah
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Kwee BJ, Seo BR, Najibi AJ, Li AW, Shih TY, White D, Mooney DJ. Treating ischemia via recruitment of antigen-specific T cells. Sci Adv 2019; 5:eaav6313. [PMID: 31392268 PMCID: PMC6669016 DOI: 10.1126/sciadv.aav6313] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 06/25/2019] [Indexed: 05/18/2023]
Abstract
Ischemic diseases are a leading cause of mortality and can result in autoamputation of lower limbs. We explored the hypothesis that implantation of an antigen-releasing scaffold, in animals previously vaccinated with the same antigen, can concentrate TH2 T cells and enhance vascularization of ischemic tissue. This approach may be clinically relevant, as all persons receiving childhood vaccines recommended by the Centers for Disease Control and Prevention have vaccines that contain aluminum, a TH2 adjuvant. To test the hypothesis, mice with hindlimb ischemia, previously vaccinated with ovalbumin (OVA) and aluminum, received OVA-releasing scaffolds. Vaccinated mice receiving OVA-releasing scaffolds locally concentrated antigen-specific TH2 T cells in the surrounding ischemic tissue. This resulted in local angiogenesis, increased perfusion in ischemic limbs, and reduced necrosis and enhanced regenerating myofibers in the muscle. These findings support the premise that antigen depots may provide a treatment for ischemic diseases in patients previously vaccinated with aluminum-containing adjuvants.
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Affiliation(s)
- Brian J. Kwee
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Bo Ri Seo
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Alexander J. Najibi
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Aileen W. Li
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Ting-Yu Shih
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Des White
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - David J. Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
- Corresponding author.
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23
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He F, Chuang CC, Zhou T, Jiang Q, Sedlock DA, Zuo L. Redox correlation in muscle lengthening and immune response in eccentric exercise. PLoS One 2018; 13:e0208799. [PMID: 30589838 PMCID: PMC6307742 DOI: 10.1371/journal.pone.0208799] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 11/26/2018] [Indexed: 11/19/2022] Open
Abstract
This study was designed to examine the potential involvement of reactive oxygen species in skeletal muscle dysfunction linked with stretching in a mouse model and to explore the effects of combined antioxidant intake on peripheral leukocyte apoptosis following eccentrically-biased downhill runs in human subjects. In the mouse model, diaphragmatic muscle was stretched by 30% of its optimal length, followed by 5-min contraction. Muscle function and extracellular reactive oxygen species release was measured ex vivo. In human models, participants performed two trials of downhill running either with or without antioxidant supplementation, followed by apoptotic assay of inflammatory cells in the blood. The results showed that stretch led to decreased muscle function and prominent ROS increase during muscle contraction. In human models, we observed an elevation in circulating leukocyte apoptosis 24-48 hours following acute downhill runs. However, there is an attenuated leukocyte apoptosis following the second bout of downhill run. Interestingly, the combination of ascorbic acid (vitamin C) and α-tocopherol (vitamin E) supplementation attenuated the decrease in B-cell lymphoma 2 (Bcl-2) at 24 hours following acute downhill running. These data collectively suggest that significant ROS formation can be induced by muscle-lengthening associated with eccentric exercise, which is accompanied by compromised muscle function. The combination of antioxidants supplementation appears to have a protective role via the attenuation of decrease in anti-apoptotic protein.
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Affiliation(s)
- Feng He
- Department of Health and Kinesiology, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States of America
- Department of Kinesiology, California State University-Chico, Chico, CA, United States of America
| | - Chia-Chen Chuang
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH, United States of America
| | - Tingyang Zhou
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH, United States of America
| | - Qing Jiang
- Department of Nutrition Science, College of Health and Human Science, Purdue University, West Lafayette, IN, United States of America
| | - Darlene A. Sedlock
- Department of Health and Kinesiology, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States of America
- * E-mail: (LZ); (DAS)
| | - Li Zuo
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH, United States of America
- Molecular Physiology and Biophysics Laboratory, College of Arts and Sciences, University of Maine, Presque Isle, ME, United States of America
- * E-mail: (LZ); (DAS)
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Acosta ICL, Soares RM, Mayorga LFSP, Alves BF, Soares HS, Gennari SM. Occurrence of tissue cyst forming coccidia in Magellanic penguins (Spheniscus magellanicus) rescued on the coast of Brazil. PLoS One 2018; 13:e0209007. [PMID: 30562391 PMCID: PMC6298673 DOI: 10.1371/journal.pone.0209007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 11/27/2018] [Indexed: 11/24/2022] Open
Abstract
The main motivation for this study was to determine the occurrence of Toxoplasma gondii, a cosmopolitan widespread zoonotic parasite distribution that can infect a wide variety of mammals and birds, in Magellanic penguins (Spheniscus magellanicus) in Brazil. In recent decades there has been a significant increase in the number of penguins originating from Argentinian and Chilean Patagonia, where these birds are born, that arrive on the Brazilian coast, where many of them are stranded and rescued. Tissue samples were collected from 330 individuals surveyed from 2012–2015 at the Institute for Marine Animal Research and Rehabilitation (IPRAM) located in Cariacica, state of Espirito Santo, Brazil. Serum were collected from 145 animals surveyed in 2015 for the detection of anti-T. gondii antibodies using the Modified Agglutination Test (MAT ≥20) and 18 birds were positive, with titers of 20 (7 birds), 40 (9 birds) and 80 (2 birds). Mouse bioassay for the isolation of T. gondii was performed using tissues from 54 penguins that were also surveyed in 2015, but no isolates were obtained. DNA from tissue samples of 330 individuals was PCR amplified and sequenced to detect tissue cyst forming coccidians by using pan sarcocystids-directed primers (based on 18S rDNA). These samples were from animals surveyed in 2015 and from frozen stocked tissues from animals surveyed in the years 2012 and 2013. The positives were PCR amplified and sequenced with genus Sarcocystis-specific primers (based on internal transcribed spacer 1, RNA polymerase beta subunit coding gene, and cytochrome B coding gene) and with Sarcocystis falcatula/Sarcocystis neurona- specific primers (based on surface antigens SAG2, SAG3 and SAG4). Sixteen (3.0%) of pectoral muscle samples were positive by all the seven molecular markers and all the samples were identical to each other. Organisms close related to Sarcocystis falcatula were confirmed in all cases. This is the first report on molecular detection of infection by S. falcatula-related organisms and the first report of seropositivity for T. gondii in free-living Magellanic penguins in Brazil. Felids and didephid opossums are definitive hosts of T. gondii and S. falcatula, respectively. Where the penguins acquire the infective forms of the parasites shed by the terrestrial mammals remains to be elucidated.
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Affiliation(s)
- Igor Cunha Lima Acosta
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo–USP, São Paulo, SP, Brasil
| | - Rodrigo Martins Soares
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo–USP, São Paulo, SP, Brasil
| | | | - Bruna Farias Alves
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo–USP, São Paulo, SP, Brasil
| | - Herbert Sousa Soares
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo–USP, São Paulo, SP, Brasil
| | - Solange Maria Gennari
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo–USP, São Paulo, SP, Brasil
- Mestrado em Medicina e Bem estar animal, Universidade Santo Amaro, Av. Prof. Eneas de Siqueira Neto, São Paulo, Brazil
- * E-mail:
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25
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Pack AD, Collins MH, Rosenberg CS, Tarleton RL. Highly competent, non-exhausted CD8+ T cells continue to tightly control pathogen load throughout chronic Trypanosoma cruzi infection. PLoS Pathog 2018; 14:e1007410. [PMID: 30419010 PMCID: PMC6258465 DOI: 10.1371/journal.ppat.1007410] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 11/26/2018] [Accepted: 10/17/2018] [Indexed: 12/21/2022] Open
Abstract
Trypanosoma cruzi infection is characterized by chronic parasitism of non-lymphoid tissues and is rarely eliminated despite potent adaptive immune responses. This failure to cure has frequently been attributed to a loss or impairment of anti-T. cruzi T cell responses over time, analogous to the T cell dysfunction described for other persistent infections. In this study, we have evaluated the role of CD8+ T cells during chronic T. cruzi infection (>100 dpi), with a focus on sites of pathogen persistence. Consistent with repetitive antigen exposure during chronic infection, parasite-specific CD8+ T cells from multiple organs expressed high levels of KLRG1, but exhibit a preferential accumulation of CD69+ cells in skeletal muscle, indicating recent antigen encounter in a niche for T. cruzi persistence. A significant proportion of CD8+ T cells in the muscle also produced IFNγ, TNFα and granzyme B in situ, an indication of their detection of and functional response to T. cruzi in vivo. CD8+ T cell function was crucial for the control of parasite burden during chronic infection as exacerbation of parasite load was observed upon depletion of this population. Attempts to improve T cell function by blocking PD-1 or IL-10, potential negative regulators of T cells, failed to increase IFNγ and TNFα production or to enhance T. cruzi clearance. These results highlight the capacity of the CD8+ T cell population to retain essential in vivo function despite chronic antigen stimulation and support a model in which CD8+ T cell dysfunction plays a negligible role in the ability of Trypanosoma cruzi to persist in mice. The parasite Trypanosoma cruzi establishes lifelong infections in humans and other mammals, leading to severe cardiac and gastrointestinal complications known as Chagas disease. Although the factors that enable T. cruzi persistence remain undefined, in this and many other infection models, pathogen persistence has been attributed to the exhaustion of the immune system, particularly of CD8+ T cells. Here, we show that the inability of hosts to fully resolve T. cruzi infection is not a result of immune exhaustion and that in fact the T. cruzi-specific CD8+ T cell population remains highly competent and actively suppresses parasite outgrowth throughout the chronic infection. These results demonstrate that compromised immunity is not the eventual outcome of all chronic infections and suggest that T. cruzi, and perhaps other pathogens, may employ alternative strategies to subvert immune clearance in the presence of highly functional pathogen-specific effectors. These findings also suggest that interventions to inhibit immune regulatory pathways or to otherwise boost existing immune responses in such infections, will have limited benefit.
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Affiliation(s)
- Angela D. Pack
- Department of Microbiology, University of Georgia, Athens, Georgia, United States of America
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia, United States of America
| | - Matthew H. Collins
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia, United States of America
- Department of Cellular Biology, University of Georgia, Athens, Georgia, United States of America
| | - Charles S. Rosenberg
- Department of Microbiology, University of Georgia, Athens, Georgia, United States of America
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia, United States of America
| | - Rick L. Tarleton
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia, United States of America
- Department of Cellular Biology, University of Georgia, Athens, Georgia, United States of America
- * E-mail:
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26
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Le G, Novotny SA, Mader TL, Greising SM, Chan SSK, Kyba M, Lowe DA, Warren GL. A moderate oestradiol level enhances neutrophil number and activity in muscle after traumatic injury but strength recovery is accelerated. J Physiol 2018; 596:4665-4680. [PMID: 30035314 PMCID: PMC6166067 DOI: 10.1113/jp276432] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/09/2018] [Indexed: 12/18/2022] Open
Abstract
KEY POINTS The female hormone oestrogen may protect muscle from injury by reducing inflammation but this is debatable. In this study, the inflammatory response of injured muscle from oestrogen-replete mice was comprehensively compared to that from oestrogen-deficient mice. We show that oestrogen markedly promotes movement of neutrophils, an inflammatory white blood cell type, into muscle over the first few days after injury but has only a minor effect on the movement of macrophages, another inflammatory cell type. Despite the enhancement of inflammation by oestrogen in injured muscle, we found strength in oestrogen-replete mice to recover faster and to a greater extent than it does in oestrogen-deficient mice. Our study and others indicate that lower doses of oestrogen, such as that used in our study, may affect muscle inflammation and injury differently from higher doses. ABSTRACT Oestrogen has been shown to protect against skeletal muscle injury and a reduced inflammatory response has been suggested as a possible protective mechanism. There are, however, dissenting reports. Our objective was to conduct an unbiased, comprehensive study of the effect of oestradiol on the inflammatory response following muscle injury. Female C57BL6/J mice were ovariectomized and supplemented with and without oestradiol. Tibialis anterior muscles were freeze injured and studied primarily at 1-4 days post-injury. Oestradiol supplementation increased injured muscle gene expression of neutrophil chemoattractants (Cxcl1 and Cxcl5) and to a lesser extent that of monocyte/macrophage chemoattractants (Ccl2 and Spp1). Oestradiol markedly increased gene expression of the neutrophil cell surface marker (Ly6g) but had less consistent effects on the monocyte/macrophage cell surface markers (Cd68, Cd163 and Cd206). These results were confirmed at the protein level by immunoblot with oestradiol increasing LY6G/C content and having no significant effect on CD163 content. These findings were confirmed with fluorescence-activated cell sorting counts of neutrophils and macrophages in injured muscles; oestradiol increased the proportion of CD45+ cells that were neutrophils (LY6G+ ) but not the proportion that were macrophages (CD68+ or CD206+ ). Physiological impact of the oestradiol-enhanced neutrophil response was assessed by strength measurements. There was no significant difference in strength between oestradiol-supplemented and -unsupplemented mice until 2 weeks post-injury; strength was 13-24% greater in supplemented mice at 2-6 weeks post-injury. In conclusion, a moderate level of oestradiol supplementation enhances neutrophil infiltration in injured muscle and this is associated with a beneficial effect on strength recovery.
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Affiliation(s)
- Gengyun Le
- Divisions of Rehabilitation Science and Physical Therapy, Department of Rehabilitation MedicineUniversity of Minnesota Medical SchoolMinneapolisMNUSA
| | - Susan A. Novotny
- Divisions of Rehabilitation Science and Physical Therapy, Department of Rehabilitation MedicineUniversity of Minnesota Medical SchoolMinneapolisMNUSA
| | - Tara L. Mader
- Divisions of Rehabilitation Science and Physical Therapy, Department of Rehabilitation MedicineUniversity of Minnesota Medical SchoolMinneapolisMNUSA
| | - Sarah M. Greising
- Divisions of Rehabilitation Science and Physical Therapy, Department of Rehabilitation MedicineUniversity of Minnesota Medical SchoolMinneapolisMNUSA
| | - Sunny S. K. Chan
- Lillehei Heart InstituteUniversity of MinnesotaMinneapolisMNUSA
- Department of PediatricsUniversity of MinnesotaMinneapolisMNUSA
| | - Michael Kyba
- Lillehei Heart InstituteUniversity of MinnesotaMinneapolisMNUSA
- Department of PediatricsUniversity of MinnesotaMinneapolisMNUSA
| | - Dawn A. Lowe
- Divisions of Rehabilitation Science and Physical Therapy, Department of Rehabilitation MedicineUniversity of Minnesota Medical SchoolMinneapolisMNUSA
| | - Gordon L. Warren
- Department of Physical TherapyGeorgia State UniversityAtlantaGAUSA
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27
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DiSpirito JR, Zemmour D, Ramanan D, Cho J, Zilionis R, Klein A, Benoist C, Mathis D. Molecular diversification of regulatory T cells in nonlymphoid tissues. Sci Immunol 2018; 3:eaat5861. [PMID: 30217811 PMCID: PMC6219455 DOI: 10.1126/sciimmunol.aat5861] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 07/11/2018] [Indexed: 12/12/2022]
Abstract
Foxp3+CD4+ regulatory T cells (Tregs) accumulate in certain nonlymphoid tissues, where they control diverse aspects of organ homeostasis. Populations of tissue Tregs, as they have been termed, have transcriptomes distinct from those of their counterparts in lymphoid organs and other nonlymphoid tissues. We examined the diversification of Tregs in visceral adipose tissue, skeletal muscle, and the colon vis-à-vis lymphoid organs from the same individuals. The unique transcriptomes of the various tissue Treg populations resulted from layering of tissue-restricted open chromatin regions over regions already open in the spleen, the latter tagged by super-enhancers and particular histone marks. The binding motifs for a small number of transcription factor (TF) families were repeatedly enriched within the accessible chromatin stretches of Tregs in the three nonlymphoid tissues. However, a bioinformatically and experimentally validated transcriptional network, constructed by integrating chromatin accessibility and single-cell transcriptomic data, predicted reliance on different TF family members in the different tissues. The network analysis also revealed that tissue-restricted and broadly acting TFs were integrated into feed-forward loops to enforce tissue-specific gene expression in nonlymphoid-tissue Tregs. Overall, this study provides a framework for understanding the epigenetic dynamics of T cells operating in nonlymphoid tissues, which should inform strategies for specifically targeting them.
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Affiliation(s)
- Joanna R. DiSpirito
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
| | - David Zemmour
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
| | - Deepshika Ramanan
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
| | - Jun Cho
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
| | - Rapolas Zilionis
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
- Institute of Biotechnology, Vilnius University, Vilnius, LT 10257, Lithuania
| | - Allon Klein
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Christophe Benoist
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
| | - Diane Mathis
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston MA 02115, USA
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28
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Wessel Ø, Haugland Ø, Rode M, Fredriksen BN, Dahle MK, Rimstad E. Inactivated Piscine orthoreovirus vaccine protects against heart and skeletal muscle inflammation in Atlantic salmon. J Fish Dis 2018; 41:1411-1419. [PMID: 29926926 DOI: 10.1111/jfd.12835] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 05/18/2023]
Abstract
Heart- and skeletal muscle inflammation (HSMI) caused by infection with Piscine orthoreovirus (PRV) is one of the most common viral diseases in farmed Atlantic salmon (Salmo salar) in Norway, and disease outbreaks have been reported in most countries with large-scale Atlantic salmon aquaculture. Currently there is no vaccine available for protection against HSMI, partly due to the lack of a cell line for efficient virus propagation. Erythrocytes are the primary target cells for PRV in vivo and a potential source for isolation of PRV particles. In this study, PRV was purified from infected erythrocytes, inactivated and used in a vaccination trial against HSMI. A single immunization with adjuvanted, inactivated PRV induced protection against HSMI in Atlantic salmon infected by virus injection 6 weeks later, while a moderate protection was obtained in fish infected through natural transmission, i.e. cohabitation. The PRV vaccine significantly reduced PRV loads and histopathological lesions typical for HSMI compared to the unvaccinated control group. This is the first demonstration of protective vaccination against PRV, and promising for future control of HSMI in Atlantic salmon aquaculture.
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Affiliation(s)
- Øystein Wessel
- Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
| | | | | | | | - Maria K Dahle
- Department of Fish Health, Norwegian Veterinary Institute, Oslo, Norway
| | - Espen Rimstad
- Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
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29
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Ladislau L, Arouche-Delaperche L, Allenbach Y, Benveniste O. Potential Pathogenic Role of Anti-Signal Recognition Protein and Anti-3-hydroxy-3-methylglutaryl-CoA Reductase Antibodies in Immune-Mediated Necrotizing Myopathies. Curr Rheumatol Rep 2018; 20:56. [PMID: 30074107 DOI: 10.1007/s11926-018-0763-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW This review provides an overview of the potential pathogenic roles of anti-SRP and anti-HMGCR in IMNM over the past 5 years. RECENT FINDINGS Idiopathic inflammatory myopathies (IIM) are a group of acquired autoimmune disorders that mainly affect the skeletal muscle tissue. Classification criteria of IIM are comprised of polymyositis, dermatomyositis, inclusion body myositis and immune-mediated necrotizing myopathies. One important hallmark of autoimmune diseases is the detection of autoantibodies in patient sera. The anti-SRP (signal recognition particle) and anti-HMGCR (3-hydroxy-3-methylglutaryl coenzyme A reductase) antibodies are specifically associated with IMNM patients, and their detection has been described as related to disease severity. The muscles of IMNM patients are characterized by necrosis, atrophy and regenerating fibres with sparse inflammatory infiltrates. Although an important correlation between autoantibody titres, creatine kinase levels and disease progression/severity has been described in the last few years, the potential pathogenic roles of these autoantibodies have only recently been described.
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Affiliation(s)
- Leandro Ladislau
- UPMC Univ Paris 06, INSERM UMRS_974, Center of Research in Myology, AP-HP, Department of Internal Medicine & Clinical Immunology, DHU I2B, Pitié-Salpêtrière Hospital, Sorbonne Université, F-75013, Paris, France
| | - Louiza Arouche-Delaperche
- UPMC Univ Paris 06, INSERM UMRS_974, Center of Research in Myology, AP-HP, Department of Internal Medicine & Clinical Immunology, DHU I2B, Pitié-Salpêtrière Hospital, Sorbonne Université, F-75013, Paris, France
| | - Yves Allenbach
- UPMC Univ Paris 06, INSERM UMRS_974, Center of Research in Myology, AP-HP, Department of Internal Medicine & Clinical Immunology, DHU I2B, Pitié-Salpêtrière Hospital, Sorbonne Université, F-75013, Paris, France
| | - Olivier Benveniste
- UPMC Univ Paris 06, INSERM UMRS_974, Center of Research in Myology, AP-HP, Department of Internal Medicine & Clinical Immunology, DHU I2B, Pitié-Salpêtrière Hospital, Sorbonne Université, F-75013, Paris, France.
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Winje IM, Bengtsen M, Eftestøl E, Juvkam I, Bruusgaard JC, Gundersen K. Specific labelling of myonuclei by an antibody against pericentriolar material 1 on skeletal muscle tissue sections. Acta Physiol (Oxf) 2018; 223:e13034. [PMID: 29330928 DOI: 10.1111/apha.13034] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 01/05/2018] [Accepted: 01/08/2018] [Indexed: 01/11/2023]
Abstract
AIM Skeletal muscle is a heterogeneous tissue containing several different cell types, and only about 40%-50% of the cell nuclei within the tissue belong to myofibres. Existing technology, attempting to distinguish myonuclei from other nuclei at the light microscopy level, has led to controversies in our understanding of the basic cell biology of muscle plasticity. This study aims at demonstrating that an antibody against the protein pericentriolar material 1 (PCM1) can be used to reliably identify myonuclei on histological cross sections from humans, mice and rats. METHODS Cryosections were labelled with a polyclonal antibody against PCM1. The specificity of the labelling for myonuclei was verified using 3D reconstructions of confocal z-stacks triple-labelled for DNA, dystrophin and PCM1, and by co-localization with nuclear mCherry driven by the muscle-specific Alpha-Actin-1 promoter after viral transduction. RESULTS The PCM1 antibody specifically labelled all myonuclei, and myonuclei only, in cryosections of muscles from rats, mice and men. Nuclei in other cell types including satellite cells were not labelled. Both normal muscles and hypertrophic muscles after synergist ablation were investigated. CONCLUSION Pericentriolar material 1 can be used as a specific histological marker for myonuclei in skeletal muscle tissue without relying on counterstaining of other structures or cumbersome and subjective analysis of nuclear positioning.
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Affiliation(s)
- I M Winje
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - M Bengtsen
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - E Eftestøl
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - I Juvkam
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - J C Bruusgaard
- Department of Biosciences, University of Oslo, Oslo, Norway
- Department of Health Sciences, Kristiania University College, Oslo, Norway
| | - K Gundersen
- Department of Biosciences, University of Oslo, Oslo, Norway
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Carvalho AAS, da Silva VG, Vieira TF, Delgado PO, Corazini R, Feder D, Fonseca FLA. Proposed cut-off for reactivity of anti-HMGCR and anti-SRP antibodies in patients statin-exposed and statin-unexposed. Medicine (Baltimore) 2018; 97:e11858. [PMID: 30170376 PMCID: PMC6392535 DOI: 10.1097/md.0000000000011858] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The therapeutic approach with statins is widely used in the control of dyslipidemias. However, there is no laboratory evaluation to elect patients to make use of this class of therapeutic drugs.We analyzed the prevalence of anti-signal recognition particle (anti-SRP) and anti-3-hydroxy-3-methylglutaryl-coenzyme A reductase (anti-HMGCR) antibodies in a heterogeneous cohort of 85 patients in order to determine cutoff reference values for these antibodies.Serum samples from 85 patients were screened for the presence of anti-HMGCR and anti-SRP autoantibodies by enzyme-linked immunosorbent assay. The demographic, clinical, and morphological features were also correlated with anti-HMGCR and anti-SRP antibodies. The patients were divided in 2 groups: A, statin-exposed, and B, statin-unexposed.There was no significant association (P > .05) among anti-HMGCR and anti-SRP titers in relation to age, sex, statin exposure, and CK level. The concentrations of both antibodies were not correlated with symptoms, CK level, or statin exposure. Eleven (12.9%) patients had anti-HMGCR antibodies. We found a tendency (P = .051) toward greater anti-HMGCR positivity in women with no symptoms. Twelve (14.1%) patients had anti-SRP antibodies. There was no sex predominance, and only 1 patient had muscle complaints. Muscular symptoms were present in 31 (36.5%) patients, 4 (12.9%) were positive for anti-HMGCR antibodies, and 1 (3.2%) was positive for anti-SRP antibodies. A total of 54 (63.5%) patients had no muscle symptoms, 7 (13%) were anti-HMGCR positive, and 11 (20.4%) were anti-SRP positive. We found statistical significance for patients with anti-SRP antibodies when asymptomatic and symptomatic patients were compared (P = .029). In contrast, there was no statistically significant difference between symptoms and positivity for anti-HMG antibodies.One of the main aims of this study was to define a cutoff point in a heterogeneous population with different diagnoses. We also demonstrated that anti-HMGCR and anti-SRP antibodies are not 100% specific to immune-mediated necrotizing myopathy. We believe that these antibodies must be tested and interpreted within the specific context.
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Affiliation(s)
| | | | | | | | | | - David Feder
- Pharmacology Department, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil
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Riccobono D, Nikovics K, François S, Favier AL, Jullien N, Schrock G, Scherthan H, Drouet M. First Insights Into the M2 Inflammatory Response After Adipose-Tissue-Derived Stem Cell Injections in Radiation-Injured Muscles. Health Phys 2018; 115:37-48. [PMID: 29787429 DOI: 10.1097/hp.0000000000000822] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The cutaneous radiation syndrome is the clinical consequence of local high-dose irradiation. It is characterized by extensive inflammation, necrosis, and poor revascularization of the skin, resulting in muscle inflammation and fibrosis. Based on these physiopathological processes, subcutaneous injections of adipose-tissue-derived stem/stromal cells have shown favorable effects on skin-wound healing in a minipig model of cutaneous radiation syndrome, in which muscle fibrosis persisted. Since fibrosis is mainly due to the inflammatory processes that often affect underlying tissues as well, the beneficial effects of intramuscular injections of adipose-tissue-derived stem/stromal cells on tissue recovery were evaluated. The polarization of the inflammatory response of irradiated muscle in a minipig model of cutaneous radiation syndrome was determined after acute local irradiation with 50 Gy gamma rays in a preliminary study (six minipigs). Analysis of the main inflammatory cytokines of the inflammatory response M1 (IL-1-beta and IL-6) and M2 (IL-10 and TGF-beta) by western blotting and in situ hybridization, as well as analysis of CD80/CD206 M1/M2 macrophage-specific markers by immunohistochemistry on minipig muscle samples, was performed 76 d after irradiation. The treatment of irradiated muscles with autologous adipose-tissue-derived stem/stromal cells led to an increase in IL-10 and TGF-beta, being associated with an increase in CD68+/CD206+ cells in this area. This highlights a polarization of M2 in the inflammatory response and indicates that adipose-tissue-derived stem/stromal cells may direct the irradiated tissues' inflammatory response towards a proregenerative outcome.
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Affiliation(s)
- Diane Riccobono
- Institut de Recherche Biomédicale des Armées (IRBA), Unité de Radiobiologie, Brétigny sur Orge Cedex, France
| | - Krisztina Nikovics
- Institut de Recherche Biomédicale des Armées (IRBA), Département des Services, Unité Imagerie, Brétigny sur Orge Cedex, France
| | - Sabine François
- Institut de Recherche Biomédicale des Armées (IRBA), Unité de Radiobiologie, Brétigny sur Orge Cedex, France
| | - Anne-Laure Favier
- Institut de Recherche Biomédicale des Armées (IRBA), Département des Services, Unité Imagerie, Brétigny sur Orge Cedex, France
| | - Nicolas Jullien
- Institut de Recherche Biomédicale des Armées (IRBA), Unité de Radiobiologie, Brétigny sur Orge Cedex, France
| | - Gerrit Schrock
- Institut für Radiobiologie der Bundeswehr, Neuherbergstraße 11, 80937 München, Germany
| | - Harry Scherthan
- Institut für Radiobiologie der Bundeswehr, Neuherbergstraße 11, 80937 München, Germany
| | - Michel Drouet
- Institut de Recherche Biomédicale des Armées (IRBA), Unité de Radiobiologie, Brétigny sur Orge Cedex, France
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Abstract
RATIONALE Idiopathic inflammatory myopathies have been extensively reported associated with malignancy. Immune-mediated necrotizing myopathy (IMNM), however, has rarely been connected with malignancy including acute myeloid leukemia (AML). PATIENT CONCERNS A 65-year-old woman was diagnosed with AML and received regular chemotherapy. After the 5th cycle chemotherapy, she achieved complete remission but developed severe muscle weakness and myalgia with dramatic increasing creatine kinase (CK). DIAGNOSIS The positivity of antinuclear matrix protein 2 antibody (anti-NXP2 Ab) and muscle biopsy in together confirmed the diagnosis of IMNM. INTERVENTION Methylprednisolone and intravenous immunoglobulin was administered. OUTCOMES This treatment resulted in a dramatic clinical and laboratory improvement within 1 month. CK and lactate dehydrogenase levels dropped sharply to normal. Anti-NXP2 Ab was shown to disappear in a repeated test afterwards. LESSONS The IMNM is also closely related to malignancy. We here report a case of IMNM associated with AML for the first time. Anti-NXP2 Ab may be utilized as both diagnostic and prognostic markers of paraneoplastic IMNMs.
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Affiliation(s)
- Lina Su
- Department of Rheumatology and Immunology, Peking University People's Hospital
| | - Yue Yang
- Department of Rheumatology and Immunology, Peking University People's Hospital
| | - Yuan Jia
- Department of Rheumatology and Immunology, Peking University People's Hospital
| | - Xu Liu
- Department of Rheumatology and Immunology, Peking University People's Hospital
| | - Wei Zhang
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Yun Yuan
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Zhanguo Li
- Department of Rheumatology and Immunology, Peking University People's Hospital
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Abstract
Histopathological analyses of muscle specimens from myositis patients indicate that skeletal muscle cells play an active role in the interaction with immune cells. Research over the last few decades has shown that skeletal muscle cells exhibit immunobiological properties that perfectly define them as non-professional antigen presenting cells. They are able to present antigens via major histocompatibility complex molecules, exhibit costimulatory molecules and secrete soluble molecules that actively shape the immune response in an either pro- or anti-inflammatory manner. Skeletal muscle cells regulate both innate and adaptive immune responses and are essentially involved in the pathophysiological processes of idiopathic inflammatory myopathies. Understanding the role of skeletal muscle cells might help to identify new therapeutic targets for these devastating diseases. This review summarizes the immunobiological features of skeletal muscle cells, especially in the context of idiopathic inflammatory myopathies, and discusses shortcomings and limitations in skeletal muscle related research providing potential perspectives to overcome them in the future.
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Affiliation(s)
- Ali Maisam Afzali
- Department of Neurology, Klinikum Rechts der Isar, Technical University of Munich, Germany; Department of Neurology, University of Münster, Germany
| | | | - Heinz Wiendl
- Department of Neurology, University of Münster, Germany
| | - Sven G Meuth
- Department of Neurology, University of Münster, Germany
| | - Tobias Ruck
- Department of Neurology, University of Münster, Germany.
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Iyer AK, Jones KJ, Sanders VM, Walker CL. Temporospatial Analysis and New Players in the Immunology of Amyotrophic Lateral Sclerosis. Int J Mol Sci 2018; 19:ijms19020631. [PMID: 29473876 PMCID: PMC5855853 DOI: 10.3390/ijms19020631] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 02/18/2018] [Accepted: 02/21/2018] [Indexed: 02/07/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized by progressive loss of lower and upper motor neurons (MN) leading to muscle weakness, paralysis and eventually death. Although a highly varied etiology results in ALS, it broadly manifests itself as sporadic and familial forms that have evident similarities in clinical symptoms and disease progression. There is a tremendous amount of knowledge on molecular mechanisms leading to loss of MNs and neuromuscular junctions (NMJ) as major determinants of disease onset, severity and progression in ALS. Specifically, two main opposing hypotheses, the dying forward and dying back phenomena, exist to account for NMJ denervation. The former hypothesis proposes that the earliest degeneration occurs at the central MNs and proceeds to the NMJ, whereas in the latter, the peripheral NMJ is the site of precipitating degeneration progressing backwards to the MN cell body. A large body of literature strongly indicates a role for the immune system in disease onset and progression via regulatory involvement at the level of both the central and peripheral nervous systems (CNS and PNS). In this review, we discuss the earliest reported immune responses with an emphasis on newly identified immune players in mutant superoxide dismutase 1 (mSOD1) transgenic mice, the gold standard mouse model for ALS.
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Affiliation(s)
- Abhirami K Iyer
- Anatomy and Cell Biology Department, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
- Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, IN 46202, USA.
| | - Kathryn J Jones
- Anatomy and Cell Biology Department, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
- Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, IN 46202, USA.
| | - Virginia M Sanders
- Department of Cancer Biology and Genetics, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
| | - Chandler L Walker
- Anatomy and Cell Biology Department, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
- Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, IN 46202, USA.
- Department of Biomedical and Applied Sciences, Indiana University School of Dentistry, Indianapolis, IN 46202, USA.
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Saeed M, Yatao X, Hassan FU, Arain MA, Abd El-Hack ME, Noreldin AE, Sun C. Influence of Graded Levels of l-Theanine Dietary Supplementation on Growth Performance, Carcass Traits, Meat Quality, Organs Histomorphometry, Blood Chemistry and Immune Response of Broiler Chickens. Int J Mol Sci 2018; 19:ijms19020462. [PMID: 29401695 PMCID: PMC5855684 DOI: 10.3390/ijms19020462] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 11/16/2022] Open
Abstract
l-theanine is a water-soluble non-proteinous amino acid mainly found in green tea leaves. Despite the availability of abundant literature on green tea, studies on the use of l-theanine as a feed additive in animals, and especially broilers are limited. The objective of this study was, therefore, to evaluate the effect of different dietary levels of l-theanine on meat quality, growth performance, immune response, and blood metabolites in broilers. A total of 400 day-old broiler chicks were randomly divided into four treatment groups using a completely randomized design; C-control, basal diet; 100LT-basal diet + 100 mg l-theanine/kg diet; 200LT-basal diet + 200 mg l-theanine/kg diet; and 300LT-basal diet + 300 mg l-theanine/kg diet. Results revealed that the intermediate level of l-theanine (200 mg/kg diet) showed better results in terms of body weight gain (BWG), feed consumed (FC), and feed conversion ratio (FCR) as compared with the other supplemented groups and the control. The live weight eviscerated weight and gizzard weight were higher in all l-theanine levels as compared to those of the control group. Increased weight (p ≤ 0.05) of spleen and bursa were found in group 200LT (200 mg l-theanine/kg diet). Concerning meat color parameters, values for yellowness (b*), and redness (a*) were greater in l-theanine-supplemented groups than the control. Supplementing broiler diet with l-theanine reduced (p = 0.02) total serum cholesterol contents while increased HDL. Further analysis revealed lower relative serum cytokines (IL-2 and INF-γ) and reduced mRNA expression of TNF-α and IL-6 in thymus, and IFN-γ and IL-2 in spleen in the treated group. Moreover, supplementation with 200 mg/kg of l-theanine improved antioxidant status in blood by increasing SOD, GSH-Px, and relative CAT levels. It is concluded that the optimum supplementation level of l-theanine is 200 mg/kg of diet because it resulted in improved performance parameters in broilers. However, higher levels of l-theanine (300 mg/kg diet) may have deleterious effects on performance and health of broiler chickens.
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Affiliation(s)
- Muhammad Saeed
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China.
| | - Xu Yatao
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China.
| | - Faiz-Ul Hassan
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan.
| | - Muhammad Asif Arain
- Faculty of Veterinary and Animal Sciences, Lasbela University of Agriculture, Water and Marine Sciences, Uthal 90150, Pakistan.
| | - Mohamed E Abd El-Hack
- Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
| | - Ahmed E Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22516, Egypt.
| | - Chao Sun
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China.
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Braden LM, Rasmussen KJ, Purcell SL, Ellis L, Mahony A, Cho S, Whyte SK, Jones SRM, Fast MD. Acquired Protective Immunity in Atlantic Salmon Salmo salar against the Myxozoan Kudoa thyrsites Involves Induction of MHIIβ + CD83 + Antigen-Presenting Cells. Infect Immun 2018; 86:e00556-17. [PMID: 28993459 PMCID: PMC5736826 DOI: 10.1128/iai.00556-17] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 10/03/2017] [Indexed: 12/15/2022] Open
Abstract
The histozoic myxozoan parasite Kudoa thyrsites causes postmortem myoliquefaction and is responsible for economic losses to salmon aquaculture in the Pacific Northwest. Despite its importance, little is known about the host-parasite relationship, including the host response to infection. The present work sought to characterize the immune response in Atlantic salmon during infection, recovery, and reexposure to K. thyrsites After exposure to infective seawater, infected and uninfected smolts were sampled three times over 4,275 degree-days. Histological analysis revealed infection severity decreased over time in exposed fish, while in controls there was no evidence of infection. Following a secondary exposure of all fish, severity of infection in the controls was similar to that measured in exposed fish at the first sampling time but was significantly reduced in reexposed fish, suggesting the acquisition of protective immunity. Using immunohistochemistry, we detected a population of MHIIβ+ cells in infected muscle that followed a pattern of abundance concordant with parasite prevalence. Infiltration of these cells into infected myocytes preceded destruction of the plasmodium and dissemination of myxospores. Dual labeling indicated a majority of these cells were CD83+/MHIIβ+ Using reverse transcription-quantitative PCR, we detected significant induction of cellular effectors, including macrophage/dendritic cells (mhii/cd83/mcsf), B cells (igm/igt), and cytotoxic T cells (cd8/nkl), in the musculature of infected fish. These data support a role for cellular effectors such as antigen-presenting cells (monocyte/macrophage and dendritic cells) along with B and T cells in the acquired protective immune response of Atlantic salmon against K. thyrsites.
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Affiliation(s)
- Laura M Braden
- Hoplite Laboratory, Department of Pathology & Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Karina J Rasmussen
- Department of Cancer and Inflammation Research, University of Southern Denmark, Odense, Denmark
| | - Sara L Purcell
- Hoplite Laboratory, Department of Pathology & Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Lauren Ellis
- Hoplite Laboratory, Department of Pathology & Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Amelia Mahony
- Pacific Biological Station, Fisheries and Oceans Canada, Nanaimo, BC, Canada
| | - Steven Cho
- Pacific Biological Station, Fisheries and Oceans Canada, Nanaimo, BC, Canada
| | - Shona K Whyte
- Hoplite Laboratory, Department of Pathology & Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Simon R M Jones
- Pacific Biological Station, Fisheries and Oceans Canada, Nanaimo, BC, Canada
| | - Mark D Fast
- Hoplite Laboratory, Department of Pathology & Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
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Grindeland RE, Kraemer WJ, Hymer WC. Two types of rat pituitary somatotrophs secrete growth hormone with different biological and immunological profiles. Growth Horm IGF Res 2017; 36:52-56. [PMID: 28961552 DOI: 10.1016/j.ghir.2017.09.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 09/10/2017] [Accepted: 09/11/2017] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Two stable subpopulations of somatotrophs reside in the rat pituitary gland. We tested the hypothesis that one produced growth hormone (GH) with greater activity when tested in the tibial line bioassay (BGH) than the other, while differences in the activities between the two groups would be less dramatic when measured by immunoassay (IGH). DESIGN A series of studies using hypophysectomized rats, hollow fibers, treatments and culture models were used to differentiate differences in Type I and Type II anterior pituitary somatotrophs in both function and production of immunoactive and bioactive growth hormone. RESULTS We found that dense, Type II somatotrophs (>1.070g·cm-3) differed markedly in their secretion patterns of IGH vs BGH in different In vitro and in vivo tests. In culture, Type II cells secreted five times as much BGH, and three fourths as much IGH as the less dense Type I cells. Production (storage and secretion) of BGH was 7-fold greater by Type II cells whereas IGH production was identical for the two cell types. Implantation of Type II cells into hypophysectomized rats significantly increased body weight, epiphyseal cartilage thickness, and muscle weight of the recipients; in contrast, Type I cells elicited only a small increase in body weight. Type I somatotrophs isolated from rats which had been previously fasted or insulin-treated subsequently showed only small, inconsistent changes in release relative to that from cells in the unfractionated cell population. However, release of BGH from the Type II cells was markedly decreased. CONCLUSION Both IGH and BGH should be considered in the elucidation of GH physiology.
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Affiliation(s)
- Richard E Grindeland
- Life Science Division, NASA-Ames Research Center, Moffett Field, CA 94035, United States
| | - William J Kraemer
- Department of Human Sciences, The Ohio State University, Columbus, OH 43210, United States.
| | - Wesley C Hymer
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA 16802, United States
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Peixoto LG, Teixeira RR, Vilela DD, Barbosa LN, Caixeta DC, Deconte SR, de Assis de Araújo F, Sabino-Silva R, Espindola FS. Metformin attenuates the TLR4 inflammatory pathway in skeletal muscle of diabetic rats. Acta Diabetol 2017; 54:943-951. [PMID: 28791487 DOI: 10.1007/s00592-017-1027-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 07/07/2017] [Indexed: 12/22/2022]
Abstract
AIMS Inflammation induced by hyperglycemia triggers the toll-like receptor (TLR) pathway into cells. Our hypothesis was that metformin treatment attenuates the TLR signaling pathways triggered by inflammation in skeletal muscle of hypoinsulinemic/hyperglycemic STZ-induced rats. Thus, we examined TLR signaling under hypoinsulinemia and hyperglycemia conditions and its correlation with insulin resistance in muscle of diabetic rats treated with metformin. METHODS Ten-day diabetic rats were submitted to 7 days of saline (D group) or metformin (500 mg/kg once per day) (D + M group). The skeletal muscle was collected before the insulin tolerance test. Then, Western blotting analysis of skeletal muscle supernatant was probed with TLR4, TLR2, NF-κB, IκB, p-AMPK and p-JNK. TNF-α and CXCL1/KC content was analyzed by ELISA. RESULTS Metformin treatment increased whole-body insulin sensitivity. This regulation was accompanied by a parallel change of p-AMPK and by an inverse regulation of TLR4 and NF-κB contents in the soleus muscle (r = 0.7229, r = -0.8344 and r = -0.7289, respectively, Pearson correlation; p < 0.05). Metformin treatment increased IκB content when compared to D rats. In addition, metformin treatment decreased p-JNK independently of TLR2 signal in diabetic rats. CONCLUSION In summary, the results indicate a relationship between muscular TLR4, p-AMPK and NF-κB content and insulin sensitivity. The study also highlights that in situations of insulin resistance, such as in diabetic subjects, metformin treatment may prevent attenuation of activation of the inflammatory pathway.
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Affiliation(s)
- Leonardo Gomes Peixoto
- Institute of Genetics and Biochemistry (INGEB), Federal University of Uberlandia, Rua Acre, S/N, Bloco 2E, Sala 237, Campus Umuruama, Uberlândia, MG, CEP 38400-902, Brazil
| | - Renata Roland Teixeira
- Institute of Genetics and Biochemistry (INGEB), Federal University of Uberlandia, Rua Acre, S/N, Bloco 2E, Sala 237, Campus Umuruama, Uberlândia, MG, CEP 38400-902, Brazil
| | - Danielle Diniz Vilela
- Institute of Genetics and Biochemistry (INGEB), Federal University of Uberlandia, Rua Acre, S/N, Bloco 2E, Sala 237, Campus Umuruama, Uberlândia, MG, CEP 38400-902, Brazil
| | - Lara Naves Barbosa
- Institute of Genetics and Biochemistry (INGEB), Federal University of Uberlandia, Rua Acre, S/N, Bloco 2E, Sala 237, Campus Umuruama, Uberlândia, MG, CEP 38400-902, Brazil
| | - Douglas Carvalho Caixeta
- Institute of Genetics and Biochemistry (INGEB), Federal University of Uberlandia, Rua Acre, S/N, Bloco 2E, Sala 237, Campus Umuruama, Uberlândia, MG, CEP 38400-902, Brazil
| | - Simone Ramos Deconte
- Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlândia, MG, Brazil
| | | | - Robinson Sabino-Silva
- Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlândia, MG, Brazil
| | - Foued Salmen Espindola
- Institute of Genetics and Biochemistry (INGEB), Federal University of Uberlandia, Rua Acre, S/N, Bloco 2E, Sala 237, Campus Umuruama, Uberlândia, MG, CEP 38400-902, Brazil.
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40
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Abstract
The integrity and composition of the tumour microenvironment (TME) is highly plastic, undergoing constant remodelling in response to instructive signals derived from alterations in the availability and nature of systemic host factors. This 'systemic milieu' is directly modulated by host exposure to modifiable lifestyle factors such as exercise. Host exposure to regular exercise markedly reduces the risk of the primary development of several cancers and might improve clinical outcomes following a diagnosis of a primary disease. However, the molecular mechanisms that underpin the apparent antitumour effects of exercise are poorly understood. In this Opinion article, we explore the putative effects of exercise in reprogramming the interaction between the host and the TME. Specifically, we speculate on the possible effects of exercise on reprogramming 'distant' tissue microenvironments (those not directly involved in the exercise response) by analysing how alterations in the systemic milieu might modulate key TME components to influence cancer hallmarks.
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Affiliation(s)
- Graeme J Koelwyn
- NYU Langone Medical Center, Marc and Ruti Bell Vascular Biology and Disease Program, Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, 550 First Avenue, New York, New York 10016, USA
| | - Daniela F Quail
- Goodman Cancer Research Centre, McGill University; and at the Department of Physiology, McGill University, 1160 Pine Avenue West, Montreal, Quebec H3A 1A3, Canada
| | - Xiang Zhang
- Lester and Sue Smith Breast Center, Baylor College of Medicine; and at the Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA
| | - Richard M White
- Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, USA
| | - Lee W Jones
- Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, USA; and at the Weil Cornell Medical Center, 1275 York Avenue, New York, New York 10065, USA
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De Souza FHC, Miossi R, Shinjo SK. Necrotising myopathy associated with anti-signal recognition particle (anti-SRP) antibody. Clin Exp Rheumatol 2017; 35:766-771. [PMID: 28281460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 01/25/2017] [Indexed: 06/06/2023]
Abstract
OBJECTIVES Prompted by the few studies available in the literature, we analysed patients with necrotising myopathy associated with anti-signal recognition particle (anti-SRP). METHODS We conducted a retrospective, single-centre cohort study involving 14 patients with anti-SRP antibody followed between 2001 and 2016. RESULTS Patients had a mean age at disease onset of 40.7 years and were predominantly female and of white ethnicity. At disease onset, all patients had limb muscle weakness with median serum of creatine phosphokinase level of 8080U/L, 64.3% had constitutional symptoms, 50% dysphagia, 42.9% myalgia, 21.4% and 14.3% pulmonary and articular involvement, respectively. There were no cases of cutaneous, neurological or cardiac involvements. Notably, 21.4% of patients had previous exposure to statins. Moreover, with the exception of one patient, all received methylprednisolone pulse therapy and/or human intravenous immunoglobulin (IVIg), as well as prednisone and different immunosuppressive drugs or rituximab. Relapse occurred in 64.3% of the cases. However, most patients had significant recovery of muscle strength, with half no longer using glucocorticoids and the remainder on a weaning regimen with low dose prednisone. CONCLUSIONS Unlike the cases described in the literature, there was a high frequency of extra-muscular symptoms in the patients studied. Moreover, one fifth of patients had previous exposure to statin use. There was a high relapse rates, but with good clinical and laboratory recovery, especially with pulse therapy regimen of methylprednisolone and/or IVIg.
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Affiliation(s)
| | - Renata Miossi
- Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Brazil
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Valenzuela CA, Zuloaga R, Poblete-Morales M, Vera-Tobar T, Mercado L, Avendaño-Herrera R, Valdés JA, Molina A. Fish skeletal muscle tissue is an important focus of immune reactions during pathogen infection. Dev Comp Immunol 2017; 73:1-9. [PMID: 28279806 DOI: 10.1016/j.dci.2017.03.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/04/2017] [Accepted: 03/04/2017] [Indexed: 06/06/2023]
Abstract
Skeletal muscle in mammals can express and secrete immune-related molecules during pathogen infection. Despite in fish is known that classical immune tissues participate in innate immunity, the role of skeletal muscle in this function is poorly understood. To determine the immunocompetence of fish skeletal muscle, juvenile fine flounder (Paralichthys adpersus) were challenged with Vibrio ordalii. Different Toll-like receptors, pro-inflammatory cytokines (TNFα, Il-1β, and IL-8), and immune-effector molecules (NKEF and the antimicrobial peptides hepcidin and LEAP-2) were analyzed. Infection initially triggered IL-1β upregulation and P38-MAPK/AP-1 pathway activation. Next, the NFĸB pathway was activated, together with an upregulation of intracellular Toll-like receptor expressions (tlr3, tlr8a tlr9, and tlr21), TNFα production, and leap-2 expression. Finally, transcriptions of il-1β, il-8, tnfα, nkef-a, and hepcidin were also upregulated. These results suggest that fish skeletal muscle is an immunologically active organ that could play an important role against pathogens.
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Affiliation(s)
- Cristián A Valenzuela
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad Ciencias Biológicas, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile.
| | - Rodrigo Zuloaga
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad Ciencias Biológicas, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile.
| | - Matías Poblete-Morales
- Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile; Universidad Andres Bello, Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, 2520000 Viña del Mar, Chile.
| | - Tamara Vera-Tobar
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad Ciencias Biológicas, 8370146 Santiago, Chile.
| | - Luis Mercado
- Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, 2340000 Valparaíso, Chile.
| | - Ruben Avendaño-Herrera
- Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile; Universidad Andres Bello, Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, 2520000 Viña del Mar, Chile; Universidad Andres Bello, Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ecología y Recursos Naturales, 2340000 Valparaíso, Chile.
| | - Juan Antonio Valdés
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad Ciencias Biológicas, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile; Universidad Andres Bello, Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ecología y Recursos Naturales, 2340000 Valparaíso, Chile.
| | - Alfredo Molina
- Universidad Andres Bello, Laboratorio de Biotecnología Molecular, Departamento de Ciencias Biológicas, Facultad Ciencias Biológicas, 8370146 Santiago, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), 4030000 Concepción, Chile; Universidad Andres Bello, Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ecología y Recursos Naturales, 2340000 Valparaíso, Chile.
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Abstract
To explore the role of NF-κB activation in the development of insulin resistance and investigate whether or not that the inhibition of NF-κB activation by PDTC will improve the insulin resistance of L6 cells exposed to H2O2. L6 cells were treated with H2O2, PDTC or both H2O2 and PDTC for 4 hours. The uptake of glucose with stimulation of insulin, the expression of P38-MAPK, p- P38-MAPK, NF-κBp65, p- NF-κBp65, IRS-1, IRS-2, p-IRS-2, PI3K, IκBα, p- IκBα, caspase-8 and GLUT4, the production of ROS, TNF-α, IL-6 and IL-1β as well as the apoptosis rate of L6 cells were determined and compared in L6 treated with H2O2 alone or both H2O2 and PDTC. Compared with the L6 cells treated with H2O2 alone, the L6 cells treated with both H2O2 and PDTC showed (1) significantly lower production of ROS, TNF-α, IL-6 and IL-1β; (2) significantly decreased expression of P38-MAPK, p- P38-MAPK and NF-κBp65, p- NF-κBp65, p- IκBα and caspase-8; (3) significantly lower rate of apoptosis; (4) significantly higher expression of IRS-2, p-IRS-2 (Tyr 612), PI3K and GLUT4; (5) significantly higher uptake of glucose with stimulation of insulin; (6) significantly increased expression of Bcl2 and decreased ratio of Bax to Bcl2. Based on the findings of the present study, inhibition of NF-κB activation by PDTC would improve the insulin resistance of L6 cells exposed to H2O2.
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Affiliation(s)
- Fengyang Xie
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Jian Zhu
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Baolian Hou
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Yuan Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Fanzhu Meng
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Zhixing Ren
- Center for Disease Prevention and Control of Changchun, Jilin Province, China
| | - Shuping Ren
- Department of Occupational Health and Environmental Health, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
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Lund M, Krudtaa Dahle M, Timmerhaus G, Alarcon M, Powell M, Aspehaug V, Rimstad E, Jørgensen SM. Hypoxia tolerance and responses to hypoxic stress during heart and skeletal muscle inflammation in Atlantic salmon (Salmo salar). PLoS One 2017; 12:e0181109. [PMID: 28700748 PMCID: PMC5507449 DOI: 10.1371/journal.pone.0181109] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 06/25/2017] [Indexed: 12/17/2022] Open
Abstract
Heart and skeletal muscle inflammation (HSMI) is associated with Piscine orthoreovirus (PRV) infection and is an important disease in Atlantic salmon (Salmo salar) aquaculture. Since PRV infects erythrocytes and farmed salmon frequently experience environmental hypoxia, the current study examined mutual effects of PRV infection and hypoxia on pathogenesis and fish performance. Furthermore, effects of HSMI on hypoxia tolerance, cardiorespiratory performance and blood oxygen transport were studied. A cohabitation trial including PRV-infected post-smolts exposed to periodic hypoxic stress (4 h of 40% O2; PRV-H) at 4, 7 and 10 weeks post-infection (WPI) and infected fish reared under normoxic conditions (PRV) was conducted. Periodic hypoxic stress did not influence infection levels or histopathological changes in the heart. Individual incipient lethal oxygen saturation (ILOS) was examined using a standardized hypoxia challenge test (HCT). At 7 WPI, i.e. peak level of infection, both PRV and PRV-H groups exhibited reduced hypoxia tolerance compared to non-infected fish. Three weeks later (10 WPI), during peak levels of pathological changes, reduced hypoxia tolerance was still observed for the PRV group while PRV-H performed equal to non-infected fish, implying a positive effect of the repeated exposure to hypoxic stress. This was in line with maximum heart rate (fHmax) measurements, showing equal performance of PRV-H and non-infected groups, but lower fHmax above 19°C as well as lower temperature optimum (Topt) for aerobic scope for PRV, suggesting reduced cardiac performance and thermal tolerance. In contrast, the PRV-H group had reduced hemoglobin-oxygen affinity compared to non-infected fish. In conclusion, Atlantic salmon suffering from HSMI have reduced hypoxia tolerance and cardiac performance, which can be improved by preconditioning fish to transient hypoxic stress episodes.
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Affiliation(s)
- Morten Lund
- Section of Immunology, Norwegian Veterinary Institute, Oslo and Harstad, Norway
- * E-mail:
| | - Maria Krudtaa Dahle
- Section of Immunology, Norwegian Veterinary Institute, Oslo and Harstad, Norway
| | - Gerrit Timmerhaus
- Nofima AS, Norwegian Institute of Food, Fisheries & Aquaculture Research, Ås, Norway
| | - Marta Alarcon
- Section of Immunology, Norwegian Veterinary Institute, Oslo and Harstad, Norway
| | - Mark Powell
- University of Bergen, Bergen, Norway
- Norwegian Institute for Water Research, Bergen, Norway
| | | | - Espen Rimstad
- Department of Food Safety and Infection Biology, Norwegian University of Life Sciences, Oslo, Norway
| | - Sven Martin Jørgensen
- Nofima AS, Norwegian Institute of Food, Fisheries & Aquaculture Research, Ås, Norway
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Hasegawa H, Kawahata K, Mizoguchi F, Okiyama N, Miyasaka N, Kohsaka H. Direct suppression of autoaggressive CD8+ T cells with CD80/86 blockade in CD8+ T cell-mediated polymyositis models of mice. Clin Exp Rheumatol 2017; 35:593-597. [PMID: 28134083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES CD80/86 blockade to inhibit CD28 costimulation suppressed alloreactive human and murine CD4+ T cells but not alloreactive CD8+ T cells. In contrast, CD28 costimulation augments CD8+ T cell-mediated cell lysis in antigen-nonspecific stimulation. The present study was conducted to discern whether the CD80/86 blockade exerts therapeutic effects on CD8+ T cell-mediated polymyositis (PM) models of mice and whether the effects could be attributable to direct suppression of autoantigen-specific CD8+ T cells. METHODS C protein-induced myositis (CIM) was induced in mice with intradermal injection of C protein fragments. C protein peptide-induced myositis (CPIM), in which autoaggressive CD8+ T cells are activated without CD4+ T cell help, was induced in mice with intravenous injection of dendritic cells (DCs) loaded with CD8+ T cell-epitope peptides derived from the C protein fragment. The immunised mice were treated with CTLA4-Ig or anti-CD80 and anti-CD86 antibodies (anti-CD80/86 Abs). The muscles were evaluated histologically 21 days after the C protein immunisation or 7 days after the DC injection. RESULTS CIM was suppressed in the mice treated with CTLA4-Ig or anti-CD80/86 Abs administered prophylactically from the day of immunisation and therapeutically after the disease onset. CPIM was suppressed when CTLA4-Ig was administered concurrently with the DC injection. CONCLUSIONS The CD80/86 blockade was effective in PM models of mice. Amelioration of CPIM indicates direct suppression of CD8+ T cells by the CD80/86 blockade. CTLA4-Ig should be a potential therapeutic agent of PM and other CD8+T cell-mediated diseases by suppressing both autoantigen-specific CD4+ and CD8+ T cells.
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Affiliation(s)
- Hisanori Hasegawa
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kimito Kawahata
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Fumitaka Mizoguchi
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Naoko Okiyama
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Nobuyuki Miyasaka
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hitoshi Kohsaka
- Department of Rheumatology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
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Potiron N, Chagneau C, Boeffard F, Soulillou JP, Anegon I, Le Mauff B. Adenovirus-Mediated CTLA4Ig or CD40Ig Gene Transfer Delays Pancreatic Islet Rejection in a Rat-to-Mouse Xenotransplantation Model after Systemic but Not Local Expression. Cell Transplant 2017; 14:263-75. [PMID: 16052908 DOI: 10.3727/000000005783983052] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Transient costimulation signal blockade of either CD28/CD80–86 interactions and/or CD40/CD154 interactions can prevent islet rejection in some models of both allo- and xenotransplantation. We have used adenoviruses coding for CTLA4Ig or CD40Ig and compared the efficacy of genetic modification of islets to systemic production through either intramuscular (IM) or intravenous (IV) injection of these vectors in a rat-to-mouse islet transplantation model. When gene transfer was performed into islets, a high level of primary nonfunction was induced. Furthermore, transduced functional grafts were rejected with the same kinetics as nontransduced islets. In contrast, IM AdCTLA4Ig and IV AdCD40Ig significantly delayed rejection (mean survival time of 54 ± 26.9 and 67.6 ± 44.9 days, respectively, vs. 24.3 ± 9.7 days for unmodified islets, p < 0.05). Combination of ex vivo AdCTLA4Ig islet transduction and IV AdCD40Ig did not improve graft survival further. In conclusion, islet graft transduction with adenoviruses coding for costimulation inhibitors resulted in local expression with low serum concentrations of CTLA4Ig or CD40Ig and was unable to protect islet xenografts from rejection. In contrast, IM or IV gene transfer resulted in high serum concentrations of these molecules and was highly efficient in prolonging xenograft survival. These results contrast with the efficacy of AdCTLA4Ig we observed in a rat islet allotransplantation model and suggest that islet xenograft rejection might be more difficult to control.
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Affiliation(s)
- Nicolas Potiron
- Institut National de la Santé et de la Recherche Médicale (INSERM) UMR643, Centre Hospitalo-Universitaire, 30 boulevard Jean Monnet, 44093 Nantes 01, France
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Maestraggi Q, Lebas B, Clere-Jehl R, Ludes PO, Chamaraux-Tran TN, Schneider F, Diemunsch P, Geny B, Pottecher J. Skeletal Muscle and Lymphocyte Mitochondrial Dysfunctions in Septic Shock Trigger ICU-Acquired Weakness and Sepsis-Induced Immunoparalysis. Biomed Res Int 2017; 2017:7897325. [PMID: 28589148 PMCID: PMC5447268 DOI: 10.1155/2017/7897325] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/16/2017] [Accepted: 04/23/2017] [Indexed: 12/20/2022]
Abstract
Fundamental events driving the pathological processes of septic shock-induced multiorgan failure (MOF) at the cellular and subcellular levels remain debated. Emerging data implicate mitochondrial dysfunction as a critical factor in the pathogenesis of sepsis-associated MOF. If macrocirculatory and microcirculatory dysfunctions undoubtedly participate in organ dysfunction at the early stage of septic shock, an intrinsic bioenergetic failure, sometimes called "cytopathic hypoxia," perpetuates cellular dysfunction. Short-term failure of vital organs immediately threatens patient survival but long-term recovery is also severely hindered by persistent dysfunction of organs traditionally described as nonvital, such as skeletal muscle and peripheral blood mononuclear cells (PBMCs). In this review, we will stress how and why a persistent mitochondrial dysfunction in skeletal muscles and PBMC could impair survival in patients who overcome the first acute phase of their septic episode. First, muscle wasting protracts weaning from mechanical ventilation, increases the risk of mechanical ventilator-associated pneumonia, and creates a state of ICU-acquired muscle weakness, compelling the patient to bed. Second, failure of the immune system ("immunoparalysis") translates into its inability to clear infectious foci and predisposes the patient to recurrent nosocomial infections. We will finally emphasize how mitochondrial-targeted therapies could represent a realistic strategy to promote long-term recovery after sepsis.
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Affiliation(s)
- Quentin Maestraggi
- Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Service de Réanimation Médicale, avenue Molière, 67098 Strasbourg Cedex, France
- Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de Médecine, Institut de Physiologie, Equipe d'Accueil 3072 “Mitochondrie, Stress Oxydant et Protection Musculaire”, 11 rue Human, 67000 Strasbourg, France
| | - Benjamin Lebas
- Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de Médecine, Institut de Physiologie, Equipe d'Accueil 3072 “Mitochondrie, Stress Oxydant et Protection Musculaire”, 11 rue Human, 67000 Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Service d'Anesthésie-Réanimation Chirurgicale, avenue Molière, 67098 Strasbourg Cedex, France
| | - Raphaël Clere-Jehl
- Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Service de Réanimation Médicale, avenue Molière, 67098 Strasbourg Cedex, France
- Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de Médecine, Institut de Physiologie, Equipe d'Accueil 3072 “Mitochondrie, Stress Oxydant et Protection Musculaire”, 11 rue Human, 67000 Strasbourg, France
| | - Pierre-Olivier Ludes
- Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de Médecine, Institut de Physiologie, Equipe d'Accueil 3072 “Mitochondrie, Stress Oxydant et Protection Musculaire”, 11 rue Human, 67000 Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Service d'Anesthésie-Réanimation Chirurgicale, avenue Molière, 67098 Strasbourg Cedex, France
| | - Thiên-Nga Chamaraux-Tran
- Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de Médecine, Institut de Physiologie, Equipe d'Accueil 3072 “Mitochondrie, Stress Oxydant et Protection Musculaire”, 11 rue Human, 67000 Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Service d'Anesthésie-Réanimation Chirurgicale, avenue Molière, 67098 Strasbourg Cedex, France
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS UMR7104, INSERM U964, Université de Strasbourg, Illkirch, France
| | - Francis Schneider
- Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Service de Réanimation Médicale, avenue Molière, 67098 Strasbourg Cedex, France
- Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de Médecine, Institut de Physiologie, Equipe d'Accueil 3072 “Mitochondrie, Stress Oxydant et Protection Musculaire”, 11 rue Human, 67000 Strasbourg, France
| | - Pierre Diemunsch
- Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de Médecine, Institut de Physiologie, Equipe d'Accueil 3072 “Mitochondrie, Stress Oxydant et Protection Musculaire”, 11 rue Human, 67000 Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Service d'Anesthésie-Réanimation Chirurgicale, avenue Molière, 67098 Strasbourg Cedex, France
| | - Bernard Geny
- Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de Médecine, Institut de Physiologie, Equipe d'Accueil 3072 “Mitochondrie, Stress Oxydant et Protection Musculaire”, 11 rue Human, 67000 Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, Nouvel Hôpital Civil, Service de Physiologie et d'Explorations Fonctionnelles, 1 Place de l'Hôpital, 67091 Strasbourg Cedex, France
| | - Julien Pottecher
- Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de Médecine, Institut de Physiologie, Equipe d'Accueil 3072 “Mitochondrie, Stress Oxydant et Protection Musculaire”, 11 rue Human, 67000 Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Service d'Anesthésie-Réanimation Chirurgicale, avenue Molière, 67098 Strasbourg Cedex, France
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Kjær TN, Ornstrup MJ, Poulsen MM, Stødkilde-Jørgensen H, Jessen N, Jørgensen JOL, Richelsen B, Pedersen SB. No Beneficial Effects of Resveratrol on the Metabolic Syndrome: A Randomized Placebo-Controlled Clinical Trial. J Clin Endocrinol Metab 2017; 102:1642-1651. [PMID: 28182820 DOI: 10.1210/jc.2016-2160] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 01/31/2017] [Indexed: 01/06/2023]
Abstract
CONTEXT Low-grade inflammation is associated with obesity and the metabolic syndrome (MetS). Preclinical evidence suggests that resveratrol (RSV) has beneficial metabolic and anti-inflammatory effects that could have therapeutic implications. OBJECTIVE To investigate effects of long-term RSV treatment on inflammation and MetS. SETTING AND DESIGN A randomized, placebo-controlled, double-blind, parallel group clinical trial conducted at Aarhus University Hospital. PARTICIPANTS Middle-aged community-dwelling men (N = 74) with MetS, 66 of whom completed all visits (mean ± standard error of the mean): age, 49.5 ± 0.796 years; body mass index, 33.8 ± 0.44 kg/m2; waist circumference, 115 ± 1.14 cm. INTERVENTION Daily oral supplementation with 1000 mg RSV (RSVhigh), 150 mg RSV, or placebo for 16 weeks. MAIN OUTCOME MEASURES Plasma levels of high-sensitivity C-reactive protein (hs-CRP), circulating lipids, and inflammatory markers in circulation and adipose/muscle tissue biopsy specimens; glucose metabolism; and body composition including visceral fat and ectopic fat deposition. RESULTS RSV treatment did not lower circulating levels of hs-CRP, interleukin 6, or soluble urokinase plasminogen activator receptor in plasma, and inflammatory gene expression in adipose and muscle tissues also remained unchanged. RSV treatment had no effect on blood pressure, body composition, and lipid deposition in the liver or striated muscle. RSV treatment had no beneficial effect on glucose or lipid metabolism. RSVhigh treatment significantly increased total cholesterol (P < 0.002), low-density lipoprotein (LDL) cholesterol (P < 0.006), and fructosamine (P < 0.013) levels compared with placebo. CONCLUSION RSV treatment did not improve inflammatory status, glucose homeostasis, blood pressure, or hepatic lipid content in middle-aged men with MetS. On the contrary, RSVhigh significantly increased total cholesterol, LDL cholesterol, and fructosamine levels compared with placebo.
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Affiliation(s)
- Thomas Nordstrøm Kjær
- Department of Endocrinology, Aarhus University Hospital, 8000 Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark
| | - Marie Juul Ornstrup
- Department of Endocrinology, Aarhus University Hospital, 8000 Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark
| | - Morten Møller Poulsen
- Department of Endocrinology, Aarhus University Hospital, 8000 Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark
| | - Hans Stødkilde-Jørgensen
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark
- The MR Research Centre, Aarhus University Hospital, 8000 Aarhus, Denmark
| | - Niels Jessen
- Department of Clinical Pharmacology, Aarhus University Hospital, 8000 Aarhus, Denmark
| | - Jens Otto Lunde Jørgensen
- Department of Endocrinology, Aarhus University Hospital, 8000 Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark
| | - Bjørn Richelsen
- Department of Endocrinology, Aarhus University Hospital, 8000 Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark
| | - Steen Bønløkke Pedersen
- Department of Endocrinology, Aarhus University Hospital, 8000 Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark
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Tiniakou E, Pinal-Fernandez I, Lloyd TE, Albayda J, Paik J, Werner JL, Parks CA, Casciola-Rosen L, Christopher-Stine L, Mammen AL. More severe disease and slower recovery in younger patients with anti-3-hydroxy-3-methylglutaryl-coenzyme A reductase-associated autoimmune myopathy. Rheumatology (Oxford) 2017; 56:787-794. [PMID: 28096458 PMCID: PMC5850825 DOI: 10.1093/rheumatology/kew470] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 11/18/2016] [Indexed: 12/21/2022] Open
Abstract
Objective To study disease severity and response to therapy in a large cohort of patients with anti-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR)-associated myositis. Methods Muscle strength, creatine kinase levels and treatments were assessed in anti-HMGCR-positive patients at each clinical visit. Univariate and multivariate analyses were used to analyse the influence of clinical characteristics on strength and the change in strength over time. Whole exome sequencing was performed in a subset of patients. Results . Among 50 patients followed for ⩾2 years, only 22 (44%) reached full strength with immunosuppressive therapy; even among those with full strength, 55% continued to have CK levels in excess of 500 IU/l and only three could be tapered off immunosuppressive therapy. Both univariate and multivariate analysis showed that patients who were older at disease onset were stronger at all time points (P < 0.001) and improved faster (P < 0.008) than younger patients; a history of statin exposure was not independently associated with the improvement rate. Younger patients were more likely to have refractory disease (P = 0.02) than older patients. Among eight refractory patients with DNA available for testing, whole exome sequencing did not reveal pathogenic mutations in known dystrophy genes. The risk of cancer was not increased in anti-HMGCR myositis patients compared with the general population. Conclusions Anti-HMGCR myositis is usually a chronic disease requiring long-term immunosuppression. Although younger patients had more severe disease and a worse prognosis than older patients, they did not have evidence of a known co-existing muscular dystrophy to explain their persistent, and sometimes progressive, muscle weakness.
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Affiliation(s)
- Eleni Tiniakou
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore
| | | | - Thomas E. Lloyd
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore
| | - Jemima Albayda
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore
| | - Julie Paik
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore
| | - Jessie L. Werner
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore
| | - Cassie A. Parks
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda and
| | | | - Lisa Christopher-Stine
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Andrew L. Mammen
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda and
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Petiz LL, Girardi CS, Bortolin RC, Kunzler A, Gasparotto J, Rabelo TK, Matté C, Moreira JCF, Gelain DP. Vitamin A Oral Supplementation Induces Oxidative Stress and Suppresses IL-10 and HSP70 in Skeletal Muscle of Trained Rats. Nutrients 2017; 9:E353. [PMID: 28368329 PMCID: PMC5409692 DOI: 10.3390/nu9040353] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/28/2017] [Accepted: 03/29/2017] [Indexed: 12/14/2022] Open
Abstract
Exercise training intensity is the major variant that influences the relationship between exercise, redox balance, and immune response. Supplement intake is a common practice for oxidative stress prevention; the effects of vitamin A (VA) on exercise training are not yet described, even though this molecule exhibits antioxidant properties. We investigated the role of VA supplementation on redox and immune responses of adult Wistar rats subjected to swimming training. Animals were divided into four groups: sedentary, sedentary + VA, exercise training, and exercise training + VA. Over eight weeks, animals were submitted to intense swimming 5 times/week and a VA daily intake of 450 retinol equivalents/day. VA impaired the total serum antioxidant capacity acquired by exercise, with no change in interleukin-1β and tumor necrosis factor-α levels. In skeletal muscle, VA caused lipid peroxidation and protein damage without differences in antioxidant enzyme activities; however, Western blot analysis showed that expression of superoxide dismutase-1 was downregulated, and upregulation of superoxide dismutase-2 induced by exercise was blunted by VA. Furthermore, VA supplementation decreased anti-inflammatory interleukin-10 and heat shock protein 70 expression, important factors for positive exercise adaptations and tissue damage prevention. Our data showed that VA supplementation did not confer any antioxidative and/or protective effects, attenuating exercise-acquired benefits in the skeletal muscle.
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Affiliation(s)
- Lyvia Lintzmaier Petiz
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 90035-000, Porto Alegre, Brazil.
| | - Carolina Saibro Girardi
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 90035-000, Porto Alegre, Brazil.
| | - Rafael Calixto Bortolin
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 90035-000, Porto Alegre, Brazil.
| | - Alice Kunzler
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 90035-000, Porto Alegre, Brazil.
| | - Juciano Gasparotto
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 90035-000, Porto Alegre, Brazil.
| | - Thallita Kelly Rabelo
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 90035-000, Porto Alegre, Brazil.
| | - Cristiane Matté
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 90035-000, Porto Alegre, Brazil.
| | - José Claudio Fonseca Moreira
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 90035-000, Porto Alegre, Brazil.
| | - Daniel Pens Gelain
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, 90035-000, Porto Alegre, Brazil.
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