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Peinado-Izaguerri J, Corbishley A, Zarzuela E, Pina-Beltrán B, Riva F, McKeegan DEF, Bain M, Muñoz J, Bhide M, McLaughlin M, Preston T. Effect of an immune challenge and two feed supplements on broiler chicken individual breast muscle protein synthesis rate. J Proteomics 2024; 299:105158. [PMID: 38484873 DOI: 10.1016/j.jprot.2024.105158] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 02/29/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Optimization of broiler chicken breast muscle protein accretion is key for the efficient production of poultry meat, whose demand is steadily increasing. In a context where antimicrobial growth promoters use is being restricted, it is important to find alternatives as well as to characterize the effect of immunological stress on broiler chicken's growth. Despite its importance, research on broiler chicken muscle protein dynamics has mostly been limited to the study of mixed protein turnover. The present study aims to characterize the effect of a bacterial challenge and the feed supplementation of citrus and cucumber extracts on broiler chicken individual breast muscle proteins fractional synthesis rates (FSR) using a recently developed dynamic proteomics pipeline. Twenty-one day-old broiler chickens were administered a single 2H2O dose before being culled at different timepoints. A total of 60 breast muscle protein extracts from five experimental groups (Unchallenged, Challenged, Control Diet, Diet 1 and Diet 2) were analysed using a DDA proteomics approach. Proteomics data was filtered in order to reliably calculate multiple proteins FSR making use of a newly developed bioinformatics pipeline. Broiler breast muscle proteins FSR uniformly decreased following a bacterial challenge, this change was judged significant for 15 individual proteins, the two major functional clusters identified as well as for mixed breast muscle protein. Citrus or cucumber extract feed supplementation did not show any effect on the breast muscle protein FSR of immunologically challenged broilers. The present study has identified potential predictive markers of breast muscle growth and provided new information on broiler chicken breast muscle protein synthesis which could be essential for improving the efficiency of broiler chicken meat production. SIGNIFICANCE: The present study constitutes the first dynamic proteomics study conducted in a farm animal species which has characterized FSR in a large number of proteins, establishing a precedent for biomarker discovery and assessment of health and growth status. Moreover, it has been evidenced that the decrease in broiler chicken breast muscle protein following an immune challenge is a coordinated event which seems to be the main cause of the decreased growth observed in these animals.
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Affiliation(s)
- Jorge Peinado-Izaguerri
- University of Glasgow, School of Biodiversity, One Health and Veterinary Medicine, Ilay Road, Glasgow G61 1QH, United Kingdom; University of Veterinary Medicine and Pharmacy in Košice, Laboratory of biomedical microbiology and immunology, Komenskeho 73, Košice 04001, Slovakia.
| | - Alexander Corbishley
- University of Edinburgh, Roslin Institute, Easter Bush Campus, Midlothian EH25 9RG, United Kingdom.
| | - Eduardo Zarzuela
- Spanish National Cancer Research Center, Proteomics Unit, Calle de Melchor Fernández Almagro 3, Madrid 28029, Spain.
| | - Blanca Pina-Beltrán
- Aix-Marseille Université, Marseille, Centre de Recherche en Cardiovasculaire et Nutrition, Bd Jean Moulin 27, Marseille 13385, France.
| | - Francesca Riva
- University of Glasgow, School of Biodiversity, One Health and Veterinary Medicine, Ilay Road, Glasgow G61 1QH, United Kingdom; University of Zagreb, Clinic for Internal Diseases faculty of Veterinary Medicine, Heinzelova 55, Zagreb 10000, Croatia.
| | - Dorothy E F McKeegan
- University of Glasgow, School of Biodiversity, One Health and Veterinary Medicine, Ilay Road, Glasgow G61 1QH, United Kingdom.
| | - Maureen Bain
- University of Glasgow, School of Biodiversity, One Health and Veterinary Medicine, Ilay Road, Glasgow G61 1QH, United Kingdom.
| | - Javier Muñoz
- Spanish National Cancer Research Center, Proteomics Unit, Calle de Melchor Fernández Almagro 3, Madrid 28029, Spain.
| | - Mangesh Bhide
- University of Veterinary Medicine and Pharmacy in Košice, Laboratory of biomedical microbiology and immunology, Komenskeho 73, Košice 04001, Slovakia.
| | - Mark McLaughlin
- University of Glasgow, School of Biodiversity, One Health and Veterinary Medicine, Ilay Road, Glasgow G61 1QH, United Kingdom.
| | - Tom Preston
- University of Glasgow, SUERC, Stable Isotope Biochemistry Laboratory, East Kilbride, Glasgow G75 0QF, United Kingdom.
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Voss AC, Chambers TL, Gries KJ, Jemiolo B, Raue U, Minchev K, Begue G, Lee GA, Trappe TA, Trappe SW. Exercise microdosing for skeletal muscle health applications to spaceflight. J Appl Physiol (1985) 2024; 136:1040-1052. [PMID: 38205550 DOI: 10.1152/japplphysiol.00491.2023] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 12/21/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024] Open
Abstract
Findings from a recent 70-day bedrest investigation suggested intermittent exercise testing in the control group may have served as a partial countermeasure for skeletal muscle size, function, and fiber-type shifts. The purpose of the current study was to investigate the metabolic and skeletal muscle molecular responses to the testing protocols. Eight males (29 ± 2 yr) completed muscle power (6 × 4 s; peak muscle power: 1,369 ± 86 W) and V̇o2max (13 ± 1 min; 3.2 ± 0.2 L/min) tests on specially designed supine cycle ergometers during two separate trials. Blood catecholamines and lactate were measured pre-, immediately post-, and 4-h postexercise. Muscle homogenate and muscle fiber-type-specific [myosin heavy chain (MHC) I and MHC IIa] mRNA levels of exercise markers (myostatin, IκBα, myogenin, MuRF-1, ABRA, RRAD, Fn14, PDK4) and MHC I, IIa, and IIx were measured from vastus lateralis muscle biopsies obtained pre- and 4-h postexercise. The muscle power test altered (P ≤ 0.05) norepinephrine (+124%), epinephrine (+145%), lactate (+300%), and muscle homogenate mRNA (IκBα, myogenin, MuRF-1, RRAD, Fn14). The V̇o2max test altered (P ≤ 0.05) norepinephrine (+1,394%), epinephrine (+1,412%), lactate (+736%), and muscle homogenate mRNA (myostatin, IκBα, myogenin, MuRF-1, ABRA, RRAD, Fn14, PDK4). In general, both tests influenced MHC IIa muscle fibers more than MHC I with respect to the number of genes that responded and the magnitude of response. Both tests also influenced MHC mRNA expression in a muscle fiber-type-specific manner. These findings provide unique insights into the adaptive response of skeletal muscle to small doses of exercise and could help shape exercise dosing for astronauts and Earth-based individuals.NEW & NOTEWORTHY Declines in skeletal muscle health are a concern for astronauts on long-duration spaceflights. The current findings add to the growing body of exercise countermeasures data, suggesting that small doses of specific exercise can be beneficial for certain aspects of skeletal muscle health. This information can be used in conjunction with other components of existing exercise programs for astronauts and might translate to other areas focused on skeletal muscle health (e.g., sports medicine, rehabilitation, aging).
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Affiliation(s)
- Adam C Voss
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Toby L Chambers
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Kevin J Gries
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Bozena Jemiolo
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Ulrika Raue
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Kiril Minchev
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Gwenaelle Begue
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Gary A Lee
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Todd A Trappe
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
| | - Scott W Trappe
- Human Performance Laboratory, Ball State University, Muncie, Indiana, United States
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Lorenzo JP, Molla L, Amro EM, Ibarra IL, Ruf S, Neber C, Gkougkousis C, Ridani J, Subramani PG, Boulais J, Harjanto D, Vonica A, Di Noia JM, Dieterich C, Zaugg JB, Papavasiliou FN. APOBEC2 safeguards skeletal muscle cell fate through binding chromatin and regulating transcription of non-muscle genes during myoblast differentiation. Proc Natl Acad Sci U S A 2024; 121:e2312330121. [PMID: 38625936 DOI: 10.1073/pnas.2312330121] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 03/07/2024] [Indexed: 04/18/2024] Open
Abstract
The apolipoprotein B messenger RNA editing enzyme, catalytic polypeptide (APOBEC) family is composed of nucleic acid editors with roles ranging from antibody diversification to RNA editing. APOBEC2, a member of this family with an evolutionarily conserved nucleic acid-binding cytidine deaminase domain, has neither an established substrate nor function. Using a cellular model of muscle differentiation where APOBEC2 is inducibly expressed, we confirmed that APOBEC2 does not have the attributed molecular functions of the APOBEC family, such as RNA editing, DNA demethylation, and DNA mutation. Instead, we found that during muscle differentiation APOBEC2 occupied a specific motif within promoter regions; its removal from those regions resulted in transcriptional changes. Mechanistically, these changes reflect the direct interaction of APOBEC2 with histone deacetylase (HDAC) transcriptional corepressor complexes. We also found that APOBEC2 could bind DNA directly, in a sequence-specific fashion, suggesting that it functions as a recruiter of HDAC to specific genes whose promoters it occupies. These genes are normally suppressed during muscle cell differentiation, and their suppression may contribute to the safeguarding of muscle cell fate. Altogether, our results reveal a unique role for APOBEC2 within the APOBEC family.
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Affiliation(s)
- J Paulo Lorenzo
- Division of Immune Diversity, German Cancer Research Center, Heidelberg 69120, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg 69120, Germany
| | - Linda Molla
- Laboratory of Lymphocyte Biology, The Rockefeller University, New York, NY 10065
| | - Elias Moris Amro
- Division of Immune Diversity, German Cancer Research Center, Heidelberg 69120, Germany
| | - Ignacio L Ibarra
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg 69117, Germany
- Institute of Computational Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg 85764, Germany
| | - Sandra Ruf
- Division of Immune Diversity, German Cancer Research Center, Heidelberg 69120, Germany
| | - Cedrik Neber
- Division of Immune Diversity, German Cancer Research Center, Heidelberg 69120, Germany
| | - Christos Gkougkousis
- Division of Immune Diversity, German Cancer Research Center, Heidelberg 69120, Germany
| | - Jana Ridani
- Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montréal, QC H4A 3J1, Canada
| | - Poorani Ganesh Subramani
- Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montréal, QC H4A 3J1, Canada
| | - Jonathan Boulais
- Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada
| | - Dewi Harjanto
- Laboratory of Lymphocyte Biology, The Rockefeller University, New York, NY 10065
| | - Alin Vonica
- Department of Biology, Nazareth University, Rochester, NY 14618
| | - Javier M Di Noia
- Institut de Recherches Cliniques de Montréal, Montréal, QC H2W 1R7, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montréal, QC H4A 3J1, Canada
- Department of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Christoph Dieterich
- Klaus Tschira Institute for Integrative Computational Cardiology, University Hospital Heidelberg, Heidelberg 69120, Germany
- German Center for Cardiovascular Research (DZHK) - Partner site Heidelberg/Mannheim, Heidelberg 69120, Germany
| | - Judith B Zaugg
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg 69117, Germany
| | - F Nina Papavasiliou
- Division of Immune Diversity, German Cancer Research Center, Heidelberg 69120, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg 69120, Germany
- Laboratory of Lymphocyte Biology, The Rockefeller University, New York, NY 10065
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4
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Hur H, Kim HJ, Lee D, Jo C. Beef peptides mitigate skeletal muscle atrophy in C2C12 myotubes through protein degradation, protein synthesis, and the oxidative stress pathway. Food Funct 2024; 15:4564-4574. [PMID: 38584588 DOI: 10.1039/d3fo03911k] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
This study aimed to investigate the potential of beef peptides (BPs) in mitigating muscle atrophy induced by dexamethasone (DEX) with underlying three mechanisms in vitro (protein degradation, protein synthesis, and the oxidative stress pathway). Finally, the anti-atrophic effect of BPs was enhanced through purification and isolation. BPs were generated using beef loin hydrolyzed with alcalase/ProteAX/trypsin, each at a concentration of 0.67%, followed by ultrafiltration through a 3 kDa cut-off. BPs (10-100 μg mL-1) dose-dependently counteracted the DEX-induced reductions in myotube diameters, differentiation, fusion, and maturation indices (p < 0.05). Additionally, BPs significantly reduced FoxO1 protein dephosphorylation, thereby suppressing muscle-specific E3 ubiquitin ligases such as muscle RING-finger containing protein-1 and muscle atrophy F-box protein in C2C12 myotubes at concentrations exceeding 25 μg mL-1 (p < 0.05). BPs also enhanced the phosphorylation of protein synthesis markers, including mTOR, 4E-BP1, and p70S6K1, in a dose-dependent manner (p < 0.05) and increased the mRNA expression of antioxidant enzymes. Fractionated peptides derived from BPs, through size exclusion and polarity-based fractionation, also demonstrated enhanced anti-atrophic effects compared to BPs. These peptides downregulated the mRNA expression of primary muscle atrophy markers while upregulated that of antioxidant enzymes. Specifically, peptides GAGAAGAPAGGA (MW 924.5) and AFRSSTKK (MW 826.4) were identified from fractionated peptides of BPs. These findings suggest that BPs, specifically the peptide fractions GAGAAGAPAGGA and AFRSSTKK, could be a potential strategy to mitigate glucocorticoid-induced skeletal muscle atrophy by reducing the E3 ubiquitin ligase activity.
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Affiliation(s)
- Hyeonjin Hur
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea.
| | - Hye-Jin Kim
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea.
| | - Dongheon Lee
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea.
| | - Cheorun Jo
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea.
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang 25354, Republic of Korea
- Department of Animal Product Technology, Faculty of Animal Husbandry, Universitas Padjadjaran, West Java 45363, Indonesia
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Wu J, Wen T, Marzio A, Song D, Chen S, Yang C, Zhao F, Zhang B, Zhao G, Ferri A, Cheng H, Ma J, Ren H, Chen QY, Yang Y, Qin S. FBXO32-mediated degradation of PTEN promotes lung adenocarcinoma progression. Cell Death Dis 2024; 15:282. [PMID: 38643215 PMCID: PMC11032391 DOI: 10.1038/s41419-024-06635-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 04/22/2024]
Abstract
FBXO32, a member of the F-box protein family, is known to play both oncogenic and tumor-suppressive roles in different cancers. However, the functions and the molecular mechanisms regulated by FBXO32 in lung adenocarcinoma (LUAD) remain unclear. Here, we report that FBXO32 is overexpressed in LUAD compared with normal lung tissues, and high expression of FBXO32 correlates with poor prognosis in LUAD patients. Firstly, we observed with a series of functional experiments that FBXO32 alters the cell cycle and promotes the invasion and metastasis of LUAD cells. We further corroborate our findings using in vivo mouse models of metastasis and confirmed that FBXO32 positively regulates LUAD tumor metastasis. Using a proteomic-based approach combined with computational analyses, we found a positive correlation between FBXO32 and the PI3K/AKT/mTOR pathway, and identified PTEN as a FBXO32 interactor. More important, FBXO32 binds PTEN via its C-terminal substrate binding domain and we also validated PTEN as a bona fide FBXO32 substrate. Finally, we demonstrated that FBXO32 promotes EMT and regulates the cell cycle by targeting PTEN for proteasomal-dependent degradation. In summary, our study highlights the role of FBXO32 in promoting the PI3K/AKT/mTOR pathway via PTEN degradation, thereby fostering lung adenocarcinoma progression.
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Affiliation(s)
- Jie Wu
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
- Department of Radiation Oncology, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Ting Wen
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Antonio Marzio
- Department of Pathology and Laboratory Medicine, Meyer Cancer Center, Weill Cornell Medical Center, New York, NY, USA
| | - Dingli Song
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Sisi Chen
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Chengcheng Yang
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Fengyu Zhao
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Boxiang Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Guang Zhao
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Alessandra Ferri
- Department of Pathology and Laboratory Medicine, Meyer Cancer Center, Weill Cornell Medical Center, New York, NY, USA
| | - Hao Cheng
- Department of Rehabilitation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jiao Ma
- Department of Rehabilitation, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hong Ren
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Qiao Yi Chen
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Yiping Yang
- Clinical Research Center for Shaanxi Provincial Radiotherapy, Department of Radiation Oncology, Shaanxi Provincial Cancer Hospital, Xi'an, Shaanxi, China.
| | - Sida Qin
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
- Biobank, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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Cámara-Checa A, Rubio-Alarcón M, Dago M, Crespo-García T, Rapún J, Marín M, Tamargo J, Gómez R, Caballero R, Delpón E. Reply to Benndorff and DiFrancesco: Reliable human HCN4 single-channel recordings using the cell-attached configuration in expression systems. Proc Natl Acad Sci U S A 2024; 121:e2402992121. [PMID: 38588416 PMCID: PMC11032473 DOI: 10.1073/pnas.2402992121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024] Open
Affiliation(s)
- Anabel Cámara-Checa
- Cardiac Cellular Electrophysiology Group at the Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, 28040Madrid, Spain
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid28029, Spain
| | - Marcos Rubio-Alarcón
- Cardiac Cellular Electrophysiology Group at the Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, 28040Madrid, Spain
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid28029, Spain
| | - María Dago
- Cardiac Cellular Electrophysiology Group at the Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, 28040Madrid, Spain
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid28029, Spain
| | - Teresa Crespo-García
- Cardiac Cellular Electrophysiology Group at the Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, 28040Madrid, Spain
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid28029, Spain
| | - Josu Rapún
- Cardiac Cellular Electrophysiology Group at the Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, 28040Madrid, Spain
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid28029, Spain
| | - María Marín
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid28029, Spain
| | - Juan Tamargo
- Cardiac Cellular Electrophysiology Group at the Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, 28040Madrid, Spain
| | - Ricardo Gómez
- Cardiac Cellular Electrophysiology Group at the Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, 28040Madrid, Spain
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid28029, Spain
| | - Ricardo Caballero
- Cardiac Cellular Electrophysiology Group at the Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, 28040Madrid, Spain
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid28029, Spain
| | - Eva Delpón
- Cardiac Cellular Electrophysiology Group at the Department of Pharmacology and Toxicology, School of Medicine, Universidad Complutense de Madrid, Instituto de Investigación Gregorio Marañón, 28040Madrid, Spain
- Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid28029, Spain
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7
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Diana A, Ghilardi A, Del Giacco L. Differentiation and functioning of the lateral line organ in zebrafish require Smpx activity. Sci Rep 2024; 14:7862. [PMID: 38570547 PMCID: PMC10991396 DOI: 10.1038/s41598-024-58138-z] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 03/26/2024] [Indexed: 04/05/2024] Open
Abstract
The small muscle protein, X-linked (SMPX) gene encodes a cytoskeleton-associated protein, highly expressed in the inner ear hair cells (HCs), possibly regulating auditory function. In the last decade, several mutations in SMPX have been associated with X-chromosomal progressive non syndromic hearing loss in humans and, in line with this, Smpx-deficient animal models, namely zebrafish and mouse, showed significant impairment of inner ear HCs development, maintenance, and functioning. In this work, we uncovered smpx expression in the neuromast mechanosensory HCs of both Anterior and Posterior Lateral Line (ALL and PLL, respectively) of zebrafish larvae and focused our attention on the PLL. Smpx was subcellularly localized throughout the cytoplasm of the HCs, as well as in their primary cilium. Loss-of-function experiments, via both morpholino-mediated gene knockdown and CRISPR/Cas9 F0 gene knockout, revealed that the lack of Smpx led to fewer properly differentiated and functional neuromasts, as well as to a smaller PLL primordium (PLLp), the latter also Smpx-positive. In addition, the kinocilia of Smpx-deficient neuromast HCs appeared structurally and numerically altered. Such phenotypes were associated with a significant reduction in the mechanotransduction activity of the neuromast HCs, in line with their positivity for Smpx. In summary, this work highlights the importance of Smpx in lateral line development and, specifically, in proper HCs differentiation and/or maintenance, and in the mechanotransduction process carried out by the neuromast HCs. Because lateral line HCs are both functionally and structurally analogous to the cochlear HCs, the neuromasts might represent an invaluable-and easily accessible-tool to dissect the role of Smpx in HCs development/functioning and shed light on the underlying mechanisms involved in hearing loss.
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Affiliation(s)
- Alberto Diana
- Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milan, Italy
| | - Anna Ghilardi
- Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milan, Italy
| | - Luca Del Giacco
- Department of Biosciences, Università degli Studi di Milano, Via Celoria 26, 20133, Milan, Italy.
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Tamura Y, Jee E, Kouzaki K, Kotani T, Nakazato K. Monocarboxylate transporter 4 deficiency enhances high-intensity interval training-induced metabolic adaptations in skeletal muscle. J Physiol 2024; 602:1313-1340. [PMID: 38513062 DOI: 10.1113/jp285719] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 02/29/2024] [Indexed: 03/23/2024] Open
Abstract
High-intensity exercise stimulates glycolysis, subsequently leading to elevated lactate production within skeletal muscle. While lactate produced within the muscle is predominantly released into the circulation via the monocarboxylate transporter 4 (MCT4), recent research underscores lactate's function as an intercellular and intertissue signalling molecule. However, its specific intracellular roles within muscle cells remains less defined. In this study, our objective was to elucidate the effects of increased intramuscular lactate accumulation on skeletal muscle adaptation to training. To achieve this, we developed MCT4 knockout mice and confirmed that a lack of MCT4 indeed results in pronounced lactate accumulation in skeletal muscle during high-intensity exercise. A key finding was the significant enhancement in endurance exercise capacity at high intensities when MCT4 deficiency was paired with high-intensity interval training (HIIT). Furthermore, metabolic adaptations supportive of this enhanced exercise capacity were evident with the combination of MCT4 deficiency and HIIT. Specifically, we observed a substantial uptick in the activity of glycolytic enzymes, notably hexokinase, glycogen phosphorylase and pyruvate kinase. The mitochondria also exhibited heightened pyruvate oxidation capabilities, as evidenced by an increase in oxygen consumption when pyruvate served as the substrate. This mitochondrial adaptation was further substantiated by elevated pyruvate dehydrogenase activity, increased activity of isocitrate dehydrogenase - the rate-limiting enzyme in the TCA cycle - and enhanced function of cytochrome c oxidase, pivotal to the electron transport chain. Our findings provide new insights into the physiological consequences of lactate accumulation in skeletal muscle during high-intensity exercises, deepening our grasp of the molecular intricacies underpinning exercise adaptation. KEY POINTS: We pioneered a unique line of monocarboxylate transporter 4 (MCT4) knockout mice specifically tailored to the ICR strain, an optimal background for high-intensity exercise studies. A deficiency in MCT4 exacerbates the accumulation of lactate in skeletal muscle during high-intensity exercise. Pairing MCT4 deficiency with high-intensity interval training (HIIT) results in a synergistic boost in high-intensity exercise capacity, observable both at the organismal level (via a treadmill running test) and at the muscle tissue level (through an ex vivo muscle contractile function test). Coordinating MCT4 deficiency with HIIT enhances both the glycolytic enzyme activities and mitochondrial capacity to oxidize pyruvate.
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Affiliation(s)
- Yuki Tamura
- Faculty of Sport Science, Nippon Sport Science University, Tokyo, Japan
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- Research Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
- Sport Training Center, Nippon Sport Science University, Tokyo, Japan
- High Performance Center, Nippon Sport Science University, Tokyo, Japan
- Center for Coaching Excellence, Nippon Sport Science University, Tokyo, Japan
| | - Eunbin Jee
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Karina Kouzaki
- Research Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
- Faculty of Medical Science, Nippon Sport Science University, Tokyo, Japan
- Graduate School of Medical and Health Science, Nippon Sport Science University, Tokyo, Japan
| | - Takaya Kotani
- Research Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Koichi Nakazato
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- Research Institute for Sport Science, Nippon Sport Science University, Tokyo, Japan
- Faculty of Medical Science, Nippon Sport Science University, Tokyo, Japan
- Graduate School of Medical and Health Science, Nippon Sport Science University, Tokyo, Japan
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9
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Yang DW, Kang JH, Kim MS, Kim SH. Regulatory role of N-myc downregulated genes in amelogenesis in rats. J Mol Histol 2024; 55:149-157. [PMID: 38407765 DOI: 10.1007/s10735-024-10182-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 02/06/2024] [Indexed: 02/27/2024]
Abstract
Cytodifferentiation of odontogenic cells, a late stage event in odontogenesis is based on gene regulation. However, studies on the identification of the involved genes are scarce. The present study aimed to search for molecules for the cytodifferentiation of ameloblastic cells in rats. Differential display-PCR revealed a differentially expressed gene between cap/early bell stage and hard tissue formation stage in molars. This gene was identified as N-myc Downregulated Gene 1 (Ndrg1), which is the first report in tooth development. Real time PCR and western blotting confirmed that the mRNA level of Ndrg1 was higher during enamel formation than the cap stage. Ndrg1 expression was upregulated in the early bell, crown, and root stages in a time-dependent manner. These patterns of expression were similar in Ndrg2, but Ndrg3 and Ndrg4 levels did not change during the developmental stages. Immunofluorescence revealed that strong immunoreactivity against Ndrg1 were detected in differentiated ameloblasts only, not inner enamel epithelium, odontoblasts and ameloblastic cells in defected enamel regions. Alkaline phosphatase and alizarin red s stains along with real time PCR, revealed that Ndrg1 and Ndrg2 were involved in cytodifferentiation and enamel matrix mineralization by selectively regulating amelogenin and ameloblastin genes in SF2 ameloblastic cells. These results suggest that Ndrg may play a crucial functional role in the cytodifferentiation of ameloblasts for amelogenesis.
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Affiliation(s)
- Dong-Wook Yang
- Department of Oral Anatomy, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, 500-757, Republic of Korea
| | - Jee-Hae Kang
- Department of Oral Anatomy, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, 500-757, Republic of Korea
| | - Min-Seok Kim
- Department of Oral Anatomy, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, 500-757, Republic of Korea.
| | - Sun-Hun Kim
- Department of Oral Anatomy, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, 500-757, Republic of Korea.
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10
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Takegaki J, Sase K, Kono Y, Fujita T, Konishi S, Fujita S. Intramuscular injection of mesenchymal stem cells augments basal muscle protein synthesis after bouts of resistance exercise in male mice. Physiol Rep 2024; 12:e15991. [PMID: 38605421 PMCID: PMC11009371 DOI: 10.14814/phy2.15991] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 04/13/2024] Open
Abstract
Skeletal muscle mass is critical for activities of daily living. Resistance training maintains or increases muscle mass, and various strategies maximize the training adaptation. Mesenchymal stem cells (MSCs) are multipotent cells with differential potency in skeletal muscle cells and the capacity to secrete growth factors. However, little is known regarding the effect of intramuscular injection of MSCs on basal muscle protein synthesis and catabolic systems after resistance training. Here, we measured changes in basal muscle protein synthesis, the ubiquitin-proteasome system, and autophagy-lysosome system-related factors after bouts of resistance exercise by intramuscular injection of MSCs. Mice performed three bouts of resistance exercise (each consisting of 50 maximal isometric contractions elicited by electrical stimulation) on the right gastrocnemius muscle every 48 h, and immediately after the first bout, mice were intramuscularly injected with either MSCs (2.0 × 106 cells) labeled with green fluorescence protein (GFP) or vehicle only placebo. Seventy-two hours after the third exercise bout, GFP was detected only in the muscle injected with MSCs with concomitant elevation of muscle protein synthesis. The injection of MSCs also increased protein ubiquitination. These results suggest that the intramuscular injection of MSCs augmented muscle protein turnover at the basal state after consecutive resistance exercise.
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Affiliation(s)
- Junya Takegaki
- Research Organization of Science and TechnologyRitsumeikan UniversityKusatsuShigaJapan
- Ritsumeikan Global Innovation Research OrganizationRitsumeikan UniversityKusatsuShigaJapan
- Graduate School of Agricultural ScienceKobe UniversityKobeHyogoJapan
| | - Kohei Sase
- Faculty of Sport and Health ScienceRitsumeikan UniversityKusatsuShigaJapan
| | - Yusuke Kono
- Ritsumeikan Global Innovation Research OrganizationRitsumeikan UniversityKusatsuShigaJapan
- Faculty of Pharmaceutical SciencesKobe Pharmaceutical UniversityKobeHyogoJapan
| | - Takuya Fujita
- College of Pharmaceutical SciencesRitsumeikan UniversityKusatsuShigaJapan
| | - Satoshi Konishi
- Faculty of Science and EngineeringRitsumeikan UniversityKusatsuShigaJapan
| | - Satoshi Fujita
- Faculty of Sport and Health ScienceRitsumeikan UniversityKusatsuShigaJapan
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11
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Shur NF, Simpson EJ, Crossland H, Constantin D, Cordon SM, Constantin‐Teodosiu D, Stephens FB, Brook MS, Atherton PJ, Smith K, Wilkinson DJ, Mougin OE, Bradley C, Macdonald IA, Greenhaff PL. Bed-rest and exercise remobilization: Concurrent adaptations in muscle glucose and protein metabolism. J Cachexia Sarcopenia Muscle 2024; 15:603-614. [PMID: 38343303 PMCID: PMC10995277 DOI: 10.1002/jcsm.13431] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/21/2023] [Accepted: 12/20/2023] [Indexed: 04/06/2024] Open
Abstract
BACKGROUND Bed-rest (BR) of only a few days duration reduces muscle protein synthesis and induces skeletal muscle atrophy and insulin resistance, but the scale and juxtaposition of these events have not been investigated concurrently in the same individuals. Moreover, the impact of short-term exercise-supplemented remobilization (ESR) on muscle volume, protein turnover and leg glucose uptake (LGU) in humans is unknown. METHODS Ten healthy males (24 ± 1 years, body mass index 22.7 ± 0.6 kg/m2) underwent 3 days of BR, followed immediately by 3 days of ESR consisting of 5 × 30 maximal voluntary single-leg isokinetic knee extensions at 90°/s each day. An isoenergetic diet was maintained throughout the study (30% fat, 15% protein and 55% carbohydrate). Resting LGU was calculated from arterialized-venous versus venous difference across the leg and leg blood flow during the steady-state of a 3-h hyperinsulinaemic-euglycaemic clamp (60 mU/m2/min) measured before BR, after BR and after remobilization. Glycogen content was measured in vastus lateralis muscle biopsy samples obtained before and after each clamp. Leg muscle volume (LMV) was measured using magnetic resonance imaging before BR, after BR and after remobilization. Cumulative myofibrillar protein fractional synthetic rate (FSR) and whole-body muscle protein breakdown (MPB) were measured over the course of BR and remobilization using deuterium oxide and 3-methylhistidine stable isotope tracers that were administered orally. RESULTS Compared with before BR, there was a 45% decline in insulin-stimulated LGU (P < 0.05) after BR, which was paralleled by a reduction in insulin-stimulated leg blood flow (P < 0.01) and removal of insulin-stimulated muscle glycogen storage. These events were accompanied by a 43% reduction in myofibrillar protein FSR (P < 0.05) and a 2.5% decrease in LMV (P < 0.01) during BR, along with a 30% decline in whole-body MPB after 2 days of BR (P < 0.05). Myofibrillar protein FSR and LMV were restored by 3 days of ESR (P < 0.01 and P < 0.01, respectively) but not by ambulation alone. However, insulin-stimulated LGU and muscle glycogen storage were not restored by ESR. CONCLUSIONS Three days of BR caused concurrent reductions in LMV, myofibrillar protein FSR, myofibrillar protein breakdown and insulin-stimulated LGU, leg blood flow and muscle glycogen storage in healthy, young volunteers. Resistance ESR restored LMV and myofibrillar protein FSR, but LGU and muscle glycogen storage remained depressed, highlighting divergences in muscle fuel and protein metabolism. Furthermore, ambulation alone did not restore LMV and myofibrillar protein FSR in the non-exercised contralateral limb, emphasizing the importance of exercise rehabilitation following even short-term BR.
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Affiliation(s)
- Natalie F. Shur
- Centre for Sport, Exercise and Osteoarthritis Research Versus Arthritis, School of Life SciencesUniversity of Nottingham, Queen's Medical CentreNottinghamUK
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
| | - Elizabeth J. Simpson
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | - Hannah Crossland
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | - Despina Constantin
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | - Sally M. Cordon
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | - Dumitru Constantin‐Teodosiu
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | | | - Matthew S. Brook
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | - Philip J. Atherton
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | - Kenneth Smith
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | - Daniel J. Wilkinson
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | - Olivier E. Mougin
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- Sir Peter Mansfield Imaging Centre, School of PhysicsUniversity of NottinghamNottinghamUK
| | - Christopher Bradley
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- Sir Peter Mansfield Imaging Centre, School of PhysicsUniversity of NottinghamNottinghamUK
| | - Ian A. Macdonald
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
| | - Paul L. Greenhaff
- Centre for Sport, Exercise and Osteoarthritis Research Versus Arthritis, School of Life SciencesUniversity of Nottingham, Queen's Medical CentreNottinghamUK
- National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research CentreNottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical CentreNottinghamUK
- MRC/Versus Arthritis Centre for Musculoskeletal Ageing Research, Schools of Life Sciences and MedicineUniversity of Nottingham, Queen's Medical CentreNottinghamUK
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12
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Liang S, Zhou Y, Chang Y, Li J, Zhang M, Gao P, Li Q, Yu H, Kawakami K, Ma J, Zhang R. A novel gene-trap line reveals the dynamic patterns and essential roles of cysteine and glycine-rich protein 3 in zebrafish heart development and regeneration. Cell Mol Life Sci 2024; 81:158. [PMID: 38556571 PMCID: PMC10982097 DOI: 10.1007/s00018-024-05189-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/13/2024] [Accepted: 02/28/2024] [Indexed: 04/02/2024]
Abstract
Mutations in cysteine and glycine-rich protein 3 (CSRP3)/muscle LIM protein (MLP), a key regulator of striated muscle function, have been linked to hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM) in patients. However, the roles of CSRP3 in heart development and regeneration are not completely understood. In this study, we characterized a novel zebrafish gene-trap line, gSAIzGFFM218A, which harbors an insertion in the csrp3 genomic locus, heterozygous fish served as a csrp3 expression reporter line and homozygous fish served as a csrp3 mutant line. We discovered that csrp3 is specifically expressed in larval ventricular cardiomyocytes (CMs) and that csrp3 deficiency leads to excessive trabeculation, a common feature of CSRP3-related HCM and DCM. We further revealed that csrp3 expression increased in response to different cardiac injuries and was regulated by several signaling pathways vital for heart regeneration. Csrp3 deficiency impeded zebrafish heart regeneration by impairing CM dedifferentiation, hindering sarcomere reassembly, and reducing CM proliferation while aggravating apoptosis. Csrp3 overexpression promoted CM proliferation after injury and ameliorated the impairment of ventricle regeneration caused by pharmacological inhibition of multiple signaling pathways. Our study highlights the critical role of Csrp3 in both zebrafish heart development and regeneration, and provides a valuable animal model for further functional exploration that will shed light on the molecular pathogenesis of CSRP3-related human cardiac diseases.
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Affiliation(s)
- Shuzhang Liang
- TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan, 430071, China
- School of Life Sciences, Fudan University, Shanghai, 200433, China
| | - Yating Zhou
- Shanghai Key Laboratory of Regulatory Biology, Institute of Molecular Medicine, School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Yue Chang
- School of Life Sciences, Fudan University, Shanghai, 200433, China
| | - Jiayi Li
- TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan, 430071, China
| | - Min Zhang
- Shanghai Pediatric Congenital Heart Disease Institute and Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Peng Gao
- TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan, 430071, China
| | - Qi Li
- TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan, 430071, China
| | - Hong Yu
- TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan, 430071, China
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430071, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Koichi Kawakami
- Laboratory of Molecular and Developmental Biology, National Institute of Genetics, Mishima, Shizuoka, 411-8540, Japan
- Department of Genetics, Graduate University for Advanced Studies (SOKENDAI), Mishima, Shizuoka, 411-8540, Japan
| | - Jinmin Ma
- Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, China.
| | - Ruilin Zhang
- TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan, 430071, China.
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, 430071, China.
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China.
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13
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Moosavi D, Vuckovic I, Kunz HE, Lanza IR. Metabolomic response to acute resistance exercise in healthy older adults by 1H-NMR. PLoS One 2024; 19:e0301037. [PMID: 38547208 PMCID: PMC10977811 DOI: 10.1371/journal.pone.0301037] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 03/03/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND The favorable health-promoting adaptations to exercise result from cumulative responses to individual bouts of physical activity. Older adults often exhibit anabolic resistance; a phenomenon whereby the anabolic responses to exercise and nutrition are attenuated in skeletal muscle. The mechanisms contributing to age-related anabolic resistance are emerging, but our understanding of how chronological age influences responsiveness to exercise is incomplete. The objective was to determine the effects of healthy aging on peripheral blood metabolomic response to a single bout of resistance exercise and whether any metabolites in circulation are predictive of anabolic response in skeletal muscle. METHODS Thirty young (20-35 years) and 49 older (65-85 years) men and women were studied in a cross-sectional manner. Participants completed a single bout of resistance exercise consisting of eight sets of 10 repetitions of unilateral knee extension at 70% of one-repetition maximum. Blood samples were collected before exercise, immediately post exercise, and 30-, 90-, and 180-minutes into recovery. Proton nuclear magnetic resonance spectroscopy was used to profile circulating metabolites at all timepoints. Serial muscle biopsies were collected for measuring muscle protein synthesis rates. RESULTS Our analysis revealed that one bout of resistance exercise elicits significant changes in 26 of 33 measured plasma metabolites, reflecting alterations in several biological processes. Furthermore, 12 metabolites demonstrated significant interactions between exercise and age, including organic acids, amino acids, ketones, and keto-acids, which exhibited distinct responses to exercise in young and older adults. Pre-exercise histidine and sarcosine were negatively associated with muscle protein synthesis, as was the pre/post-exercise fold change in plasma histidine. CONCLUSIONS This study demonstrates that while many exercise-responsive metabolites change similarly in young and older adults, several demonstrate age-dependent changes even in the absence of evidence of sarcopenia or frailty. TRIAL REGISTRATION Clinical trial registry: ClinicalTrials.gov NCT03350906.
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Affiliation(s)
- Darya Moosavi
- Department of Internal Medicine, Endocrine Research Unit, Division of Endocrinology, Mayo Clinic, Rochester, MN, United States of America
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY, United States of America
| | - Ivan Vuckovic
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, United States of America
| | - Hawley E. Kunz
- Department of Internal Medicine, Endocrine Research Unit, Division of Endocrinology, Mayo Clinic, Rochester, MN, United States of America
| | - Ian R. Lanza
- Department of Internal Medicine, Endocrine Research Unit, Division of Endocrinology, Mayo Clinic, Rochester, MN, United States of America
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14
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Ruparelia AA, Montandon M, Merriner J, Huang C, Wong SFL, Sonntag C, Hardee JP, Lynch GS, Miles LB, Siegel A, Hall TE, Schittenhelm RB, Currie PD. Atrogin-1 promotes muscle homeostasis by regulating levels of endoplasmic reticulum chaperone BiP. JCI Insight 2024; 9:e167578. [PMID: 38530354 DOI: 10.1172/jci.insight.167578] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/14/2024] [Indexed: 03/27/2024] Open
Abstract
Skeletal muscle wasting results from numerous pathological conditions affecting both the musculoskeletal and nervous systems. A unifying feature of these pathologies is the upregulation of members of the E3 ubiquitin ligase family, resulting in increased proteolytic degradation of target proteins. Despite the critical role of E3 ubiquitin ligases in regulating muscle mass, the specific proteins they target for degradation and the mechanisms by which they regulate skeletal muscle homeostasis remain ill-defined. Here, using zebrafish loss-of-function models combined with in vivo cell biology and proteomic approaches, we reveal a role of atrogin-1 in regulating the levels of the endoplasmic reticulum chaperone BiP. Loss of atrogin-1 resulted in an accumulation of BiP, leading to impaired mitochondrial dynamics and a subsequent loss in muscle fiber integrity. We further implicated a disruption in atrogin-1-mediated BiP regulation in the pathogenesis of Duchenne muscular dystrophy. We revealed that BiP was not only upregulated in Duchenne muscular dystrophy, but its inhibition using pharmacological strategies, or by upregulating atrogin-1, significantly ameliorated pathology in a zebrafish model of Duchenne muscular dystrophy. Collectively, our data implicate atrogin-1 and BiP in the pathogenesis of Duchenne muscular dystrophy and highlight atrogin-1's essential role in maintaining muscle homeostasis.
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Affiliation(s)
- Avnika A Ruparelia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Department of Anatomy and Physiology, School of Biomedical Sciences, Faculty of Medicine Dentistry and Health Sciences, and
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, Victoria, Australia
| | - Margo Montandon
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Jo Merriner
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Cheng Huang
- Monash Proteomics and Metabolomics Facility, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Siew Fen Lisa Wong
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Carmen Sonntag
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Justin P Hardee
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, Victoria, Australia
| | - Gordon S Lynch
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, Victoria, Australia
| | - Lee B Miles
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Ashley Siegel
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Thomas E Hall
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, Australia
| | - Ralf B Schittenhelm
- Monash Proteomics and Metabolomics Facility, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Peter D Currie
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- EMBL Australia, Victorian Node, Monash University, Clayton, Victoria, Australia
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15
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Zhou S, Lei S, She Y, Shi H, Li Y, Zhou X, Chen R. Running improves muscle mass by activating autophagic flux and inhibiting ubiquitination degradation in mdx mice. Gene 2024; 899:148136. [PMID: 38185293 DOI: 10.1016/j.gene.2024.148136] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/15/2023] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
BACKGROUND Exercise therapy can improve muscle mass, strengthen muscle and cardiorespiratory function, and may be an excellent adjunctive treatment option for Duchenne muscular dystrophy. METHODS This article investigates the effects of 10 weeks of treadmill training on skeletal muscle in control and mdx mice. Hematoxylin and eosin (H&E) staining was used to detect the morphometry of skeletal muscle; the grip strength test, suspension test, and rotarod test were used to detect limb muscle strength of mice, and Aurora Scientific Instruments were used to detect in vivo Muscle Stimulation Measuring Maximum Force of pre-fatigue and post-fatigue. The expression levels of myogenic proteins, ubiquitination markers, autophagy pathway proteins, and the proportion of different muscle fiber types were detected. RESULTS The experimental results show that running exercise can significantly improve the muscle mass of mdx mice, promote muscle strength, endurance, and anti-fatigue ability, reverse the pathological state of skeletal muscle destruction in mdx mice, and promote muscle regeneration. WB experiments showed that running inhibited the ubiquitination and degradation of muscle protein in mdx mice, inhibited AKT activation, decreased phosphorylated FoxO1 and FoxO3a, and restored the suppressed autophagic flux. Running enhances muscle strength and endurance by comprehensively promoting the expression of Myh1/2/4/7 fast and slow muscle fibers in mdx mice. CONCLUSIONS Running can inhibit the degradation of muscle protein in mdx mice, and promote the reuse and accumulation of proteins, thereby slowing down muscle loss. Running improves skeletal muscle mass by activating autophagic flux and inhibiting ubiquitination degradation in mdx mice.
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Affiliation(s)
- Shanyao Zhou
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, 466 Xin Gang Zhong Road, Guangzhou 510317, China
| | - Si Lei
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, 466 Xin Gang Zhong Road, Guangzhou 510317, China
| | - Yanling She
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, 466 Xin Gang Zhong Road, Guangzhou 510317, China
| | - Huacai Shi
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, 466 Xin Gang Zhong Road, Guangzhou 510317, China
| | - Yang Li
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, 466 Xin Gang Zhong Road, Guangzhou 510317, China
| | - Xin Zhou
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, 466 Xin Gang Zhong Road, Guangzhou 510317, China
| | - Rui Chen
- Guangdong Traditional Medical and Sports Injury Rehabilitation Research Institute, Guangdong Second Provincial General Hospital, 466 Xin Gang Zhong Road, Guangzhou 510317, China.
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16
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Di Bartolo AL, Caparotta M, Polo LM, Masone D. Myomerger Induces Membrane Hemifusion and Regulates Fusion Pore Expansion. Biochemistry 2024; 63:815-826. [PMID: 38349279 DOI: 10.1021/acs.biochem.3c00682] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Membrane fusion is a crucial mechanism in a wide variety of important events in cell biology from viral infection to exocytosis. However, despite many efforts and much progress, cell-cell fusion has remained elusive to our understanding. Along the life of the fusion pore, large conformational changes take place from the initial lipid bilayer bending, passing through the hemifusion intermediates, and ending with the formation of the first nascent fusion pore. In this sense, computer simulations are an ideal technique for describing such complex lipid remodeling at the molecular level. In this work, we studied the role played by the muscle-specific membrane protein Myomerger during the formation of the fusion pore. We have conducted μs length atomistic and coarse-grained molecular dynamics, together with free-energy calculations using ad hoc collective variables. Our results show that Myomerger favors the hemifusion diaphragm-stalk transition, reduces the nucleation-expansion energy difference, and promotes the formation of nonenlarging fusion pores.
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Affiliation(s)
- Ary Lautaro Di Bartolo
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo (UNCuyo), 5500 Mendoza, Argentina
| | - Marcelo Caparotta
- Quantum Theory Project, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Luis Mariano Polo
- Instituto de Histología y Embriología de Mendoza (IHEM)─Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo, 5500 Mendoza, Argentina
| | - Diego Masone
- Instituto de Histología y Embriología de Mendoza (IHEM)─Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo, 5500 Mendoza, Argentina
- Facultad de Ingeniería, Universidad Nacional de Cuyo, 5500 Mendoza, Argentina
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17
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Zhao Z, Han W, Huang G, He Y, Zuo X, Hong L. Increased extracellular matrix stiffness regulates myofibroblast transformation through induction of autophagy-mediated Kindlin-2 cytoplasmic translocation. Exp Cell Res 2024; 436:113974. [PMID: 38346630 DOI: 10.1016/j.yexcr.2024.113974] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 02/03/2024] [Accepted: 02/09/2024] [Indexed: 03/11/2024]
Abstract
The extracellular matrix (ECM) mechanical properties regulate biological processes, such as fibroblast-myofibroblast transformation (FMT), which is a crucial component in pelvic organ prolapse (POP) development. The 'Kindlin-2' protein, expressed by fibroblasts, plays an important role in the development of the mesoderm, which is responsible for connective tissue formation; however, the role of Kindlin-2 in FMT remains to be explored. In this study, we aimed to explore the role of Kindlin-2 in FMT as it relates to POP. We found that ECM stiffness induces autophagy to translocate Kindlin-2 to the cytoplasm of L929 cells, where it interacts with and degrades MOB1, thereby facilitating Yes-associated protein (YAP) entry into the nucleus and influencing FMT progression. Stiffness-induced autophagy was inhibited when using an autophagy inhibitor, which blocked the translocation of Kindlin-2 to the cytoplasm and partially reversed high-stiffness-induced FMT. In patients with POP, we observed an increase in cytoplasmic Kindlin-2 and nuclear YAP levels. Similar changes in vaginal wall-associated proteins were observed in a mouse model of acute vaginal injury. In conclusion, Kindlin-2 is a key gene affecting ECM stiffness, which regulates FMT by inducing autophagy and may influence the development of POP.
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Affiliation(s)
- Zhihan Zhao
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Wuyue Han
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Guotao Huang
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Yong He
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Xiaohu Zuo
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Li Hong
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China.
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18
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Takahashi A, Honda Y, Tanaka N, Miyake J, Maeda S, Kataoka H, Sakamoto J, Okita M. Skeletal Muscle Electrical Stimulation Prevents Progression of Disuse Muscle Atrophy via Forkhead Box O Dynamics Mediated by Phosphorylated Protein Kinase B and Peroxisome Proliferator-Activated Receptor gamma Coactivator-1alpha. Physiol Res 2024; 73:105-115. [PMID: 38466009 PMCID: PMC11019614] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 10/12/2023] [Indexed: 03/12/2024] Open
Abstract
Although electrical muscle stimulation (EMS) of skeletal muscle effectively prevents muscle atrophy, its effect on the breakdown of muscle component proteins is unknown. In this study, we investigated the biological mechanisms by which EMS-induced muscle contraction inhibits disuse muscle atrophy progression. Experimental animals were divided into a control group and three experimental groups: immobilized (Im; immobilization treatment), low-frequency (LF; immobilization treatment and low-frequency muscle contraction exercise), and high-frequency (HF; immobilization treatment and high-frequency muscle contraction exercise). Following the experimental period, bilateral soleus muscles were collected and analyzed. Atrogin-1 and Muscle RING finger 1 (MuRF-1) mRNA expression levels were significantly higher for the experimental groups than for the control group but were significantly lower for the HF group than for the Im group. Peroxisome proliferator-activated receptor gamma coactivator-1alpha (PGC-1alpha) mRNA and protein expression levels in the HF group were significantly higher than those in the Im group, with no significant differences compared to the Con group. Both the Forkhead box O (FoxO)/phosphorylated FoxO and protein kinase B (AKT)/phosphorylated AKT ratios were significantly lower for the Im group than for the control group and significantly higher for the HF group than for the Im group. These results, the suppression of atrogin-1 and MuRF-1 expression for the HF group may be due to decreased nuclear expression of FoxO by AKT phosphorylation and suppression of FoxO transcriptional activity by PGC-1alpha. Furthermore, the number of muscle contractions might be important for effective EMS.
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Affiliation(s)
- A Takahashi
- Institute of Biomedical Sciences (Health Sciences), Nagasaki University, Nagasaki, Japan.
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19
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Dennhag N, Kahsay A, Nissen I, Nord H, Chermenina M, Liu J, Arner A, Liu JX, Backman LJ, Remeseiro S, von Hofsten J, Pedrosa Domellöf F. fhl2b mediates extraocular muscle protection in zebrafish models of muscular dystrophies and its ectopic expression ameliorates affected body muscles. Nat Commun 2024; 15:1950. [PMID: 38431640 PMCID: PMC10908798 DOI: 10.1038/s41467-024-46187-x] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 02/16/2024] [Indexed: 03/05/2024] Open
Abstract
In muscular dystrophies, muscle fibers loose integrity and die, causing significant suffering and premature death. Strikingly, the extraocular muscles (EOMs) are spared, functioning well despite the disease progression. Although EOMs have been shown to differ from body musculature, the mechanisms underlying this inherent resistance to muscle dystrophies remain unknown. Here, we demonstrate important differences in gene expression as a response to muscle dystrophies between the EOMs and trunk muscles in zebrafish via transcriptomic profiling. We show that the LIM-protein Fhl2 is increased in response to the knockout of desmin, plectin and obscurin, cytoskeletal proteins whose knockout causes different muscle dystrophies, and contributes to disease protection of the EOMs. Moreover, we show that ectopic expression of fhl2b can partially rescue the muscle phenotype in the zebrafish Duchenne muscular dystrophy model sapje, significantly improving their survival. Therefore, Fhl2 is a protective agent and a candidate target gene for therapy of muscular dystrophies.
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Affiliation(s)
- Nils Dennhag
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
- Department of Clinical Sciences, Ophthalmology, Umeå University, Umeå, Sweden
| | - Abraha Kahsay
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
- Department of Clinical Sciences, Ophthalmology, Umeå University, Umeå, Sweden
| | - Itzel Nissen
- Department of Medical and Translational Biology; Section of Molecular Medicine, Umeå University, Umeå, Sweden
- Wallenberg Center for Molecular Medicine (WCMM), Umeå University, Umeå, Sweden
| | - Hanna Nord
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
| | - Maria Chermenina
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
- Department of Clinical Sciences, Ophthalmology, Umeå University, Umeå, Sweden
| | - Jiao Liu
- Div. Thoracic Surgery, Dept. Clinical Sciences, Lund University, Lund, Sweden
- College of Life Sciences, South-Central University for Nationalities, Wuhan, China
| | - Anders Arner
- Div. Thoracic Surgery, Dept. Clinical Sciences, Lund University, Lund, Sweden
| | - Jing-Xia Liu
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
| | - Ludvig J Backman
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
| | - Silvia Remeseiro
- Department of Medical and Translational Biology; Section of Molecular Medicine, Umeå University, Umeå, Sweden
- Wallenberg Center for Molecular Medicine (WCMM), Umeå University, Umeå, Sweden
| | - Jonas von Hofsten
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden.
| | - Fatima Pedrosa Domellöf
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden.
- Department of Clinical Sciences, Ophthalmology, Umeå University, Umeå, Sweden.
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Wang S, Liu B, Su Y, Wang N, Dong P, Xu X, Huang L, Li S, Gu J, Qiu Y, Deng J, Lin Z, Zhou Y. FHL2 promotes the aggressiveness of lung adenocarcinoma by inhibiting autophagy via activation of the PI3K/AKT/mTOR pathway. Thorac Cancer 2024; 15:630-641. [PMID: 38323374 DOI: 10.1111/1759-7714.15234] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/08/2024] Open
Abstract
BACKGROUND Increasing evidence indicates that four and a half LIM domains 2 (FHL2) plays a crucial role in the progression of various cancers. However, the biological functions and molecular mechanism of FHL2 in lung adenocarcinoma (LUAD) remain unclear. METHODS We evaluated the prognostic value of FHL2 in LUAD using public datasets and further confirmed its prognostic value with our clinical data. The biological functions of FHL2 in LUAD were evaluated by in vitro and in vivo experiments. Pathway analysis and rescue experiments were subsequently performed to explore the molecular mechanism by which FHL2 promoted the progression of LUAD. RESULTS FHL2 was upregulated in LUAD tissues compared to adjacent normal lung tissues, and FHL2 overexpression was correlated with unfavorable outcomes in patients with LUAD. FHL2 knockdown significantly suppressed the proliferation, migration and invasion of LUAD cells, while FHL2 overexpression had the opposite effect. Mechanistically, FHL2 upregulated the PI3K/AKT/mTOR pathway and subsequently inhibited autophagy in LUAD cells. The effects FHL2 on the proliferation, migration and invasion of LUAD cells are dependent on the inhibition of autophagy, as of induction autophagy attenuated the aggressive phenotype induced by FHL2 overexpression. CONCLUSIONS FHL2 promotes the progression of LUAD by activating the PI3K/AKT/mTOR pathway and subsequently inhibiting autophagy, which can be exploited as a potential therapeutic target for LUAD.
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Affiliation(s)
- Shuaishuai Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Baomo Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yan Su
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Nian Wang
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Peixin Dong
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiongye Xu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Lixia Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Shaoli Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jincui Gu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yanli Qiu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jiating Deng
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ziying Lin
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yanbin Zhou
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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21
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Benítez-Muñoz JA, Cupeiro R, Rubio-Arias JÁ, Amigo T, González-Lamuño D. Exercise influence on monocarboxylate transporter 1 (MCT1) and 4 (MCT4) in the skeletal muscle: A systematic review. Acta Physiol (Oxf) 2024; 240:e14083. [PMID: 38240467 DOI: 10.1111/apha.14083] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 12/13/2023] [Accepted: 01/01/2024] [Indexed: 02/24/2024]
Abstract
This review aims to systematically analyze the effect of exercise on muscle MCT protein levels and mRNA expression of their respective genes, considering exercise intensity, and duration (single-exercise session and training program) in humans and rodents, to observe whether both models offer aligned results. The review also aims to report methodological aspects that need to be improved in future studies. A systematic search was conducted in the PubMed and Web of Science databases, and the Preferred Reporting Items for Systematic review and Meta-Analyses (PRISMA) checklist was followed. After applying inclusion and exclusion criteria, 41 studies were included and evaluated using the Cochrane collaboration tool for risk of bias assessment. The main findings indicate that exercise is a powerful stimulus to increase MCT1 protein content in human muscle. MCT4 protein level increases can also be observed after a training program, although its responsiveness is lower compared to MCT1. Both transporters seem to change independently of exercise intensity, but the responses that occur with each intensity and each duration need to be better defined. The effect of exercise on muscle mRNA results is less defined, and more research is needed especially in humans. Moreover, results in rodents only agree with human results on the effect of a training program on MCT1 protein levels, indicating increases in both. Finally, we addressed important and feasible methodological aspects to improve the design of future studies.
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Affiliation(s)
- José Antonio Benítez-Muñoz
- LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science (INEF), Universidad Politécnica de Madrid, Madrid, Spain
| | - Rocío Cupeiro
- LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science (INEF), Universidad Politécnica de Madrid, Madrid, Spain
| | - Jacobo Á Rubio-Arias
- Department of Education, Faculty of Educational Sciences, Health Research Centre, University of Almería, Almería, Spain
| | - Teresa Amigo
- Department of Medical and Surgery Sciences, School of Medicine-IDIVAL, Universidad de Cantabria-Hospital M. Valdecilla, Santander, Spain
| | - Domingo González-Lamuño
- Department of Medical and Surgery Sciences, School of Medicine-IDIVAL, Universidad de Cantabria-Hospital M. Valdecilla, Santander, Spain
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22
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Nóbrega PR, de Brito de Souza JL, Maurício RB, de Paiva ARB, Dias DA, Camelo CG, Zanotelli E, Schlesinger D, Braga-Neto P, Moreno CAM. Marked neuropsychiatric involvement and dysmorphic features in nemaline myopathy. Neurol Sci 2024; 45:1225-1231. [PMID: 37851294 DOI: 10.1007/s10072-023-07128-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 10/08/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND Inherited nemaline myopathy is one of the most common congenital myopathies. This genetically heterogeneous disease is defined by the presence of nemaline bodies in muscle biopsy. The phenotypic spectrum is wide and cognitive involvement has been reported, although not extensively evaluated. METHODS We report two nemaline myopathy patients presenting pronounced central nervous system involvement leading to functional compromise and novel facial and skeletal dysmorphic findings, possibly expanding the disease phenotype. RESULTS One patient had two likely pathogenic NEB variants, c.2943G > A and c.8889 + 1G > A, and presented cognitive impairment and dysmorphic features, and the other had one pathogenic variant in ACTA1, c.169G > C (p.Gly57Arg), presenting autism spectrum disorder and corpus callosum atrophy. Both patients had severe cognitive involvement despite milder motor dysfunction. CONCLUSION We raise the need for further studies regarding the role of thin filament proteins in the central nervous system and for a systematic cognitive assessment of congenital myopathy patients.
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Affiliation(s)
- Paulo Ribeiro Nóbrega
- Department of Neurology, Faculdade de Medicina, Universidade Federal do Ceará, R. Alexandre Baraúna, 949, Rodolfo Teófilo, Fortaleza, CE, 60430-160, Brazil.
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo (FMUSP), Av. Dr. Arnaldo, 455, Cerqueira César, Pacaembu, São Paulo, 01246-903, Brazil.
- Faculty of Medicine, Unichristus University, Rua Vereador Paulo Mamede, 131, Fortaleza, CE, 60160-196, Brazil.
| | - Jorge Luiz de Brito de Souza
- Center of Health Sciences, Universidade Estadual do Ceará, Av. Dr. Silas Munguba, 1700, Itaperi, Fortaleza, CE, 60714-903, Brazil
| | - Rebeca Bessa Maurício
- Center of Health Sciences, Universidade Estadual do Ceará, Av. Dr. Silas Munguba, 1700, Itaperi, Fortaleza, CE, 60714-903, Brazil
| | - Anderson Rodrigues Brandão de Paiva
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo (FMUSP), Av. Dr. Arnaldo, 455, Cerqueira César, Pacaembu, São Paulo, 01246-903, Brazil
- Mendelics Genomic Analysis, Av. Braz Leme, 1631, Casa Verde, São Paulo, SP, 02511-000, Brazil
| | - Daniel Aguiar Dias
- Department of Radiology, Faculdade de Medicina da Universidade Federal do Ceará, R. Alexandre Baraúna, 949, Rodolfo Teófilo, Fortaleza, CE, 60430-160, Brazil
| | - Clara Gontijo Camelo
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo (FMUSP), Av. Dr. Arnaldo, 455, Cerqueira César, Pacaembu, São Paulo, 01246-903, Brazil
| | - Edmar Zanotelli
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo (FMUSP), Av. Dr. Arnaldo, 455, Cerqueira César, Pacaembu, São Paulo, 01246-903, Brazil
| | - David Schlesinger
- Mendelics Genomic Analysis, Av. Braz Leme, 1631, Casa Verde, São Paulo, SP, 02511-000, Brazil
| | - Pedro Braga-Neto
- Department of Neurology, Faculdade de Medicina, Universidade Federal do Ceará, R. Alexandre Baraúna, 949, Rodolfo Teófilo, Fortaleza, CE, 60430-160, Brazil
- Center of Health Sciences, Universidade Estadual do Ceará, Av. Dr. Silas Munguba, 1700, Itaperi, Fortaleza, CE, 60714-903, Brazil
| | - Cristiane Araujo Martins Moreno
- Department of Neurology, Faculdade de Medicina, Universidade de São Paulo (FMUSP), Av. Dr. Arnaldo, 455, Cerqueira César, Pacaembu, São Paulo, 01246-903, Brazil
- Mendelics Genomic Analysis, Av. Braz Leme, 1631, Casa Verde, São Paulo, SP, 02511-000, Brazil
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23
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Sahin K, Orhan C, Ozdemir O, Tuzcu M, Sahin N, Ojalvo SP, Komorowski JR. Effects of Whey Protein Combined with Amylopectin/Chromium on the Muscle Protein Synthesis and mTOR Phosphorylation in Exercised Rats. Biol Trace Elem Res 2024; 202:1031-1040. [PMID: 37341874 DOI: 10.1007/s12011-023-03732-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 04/04/2023] [Accepted: 06/13/2023] [Indexed: 06/22/2023]
Abstract
This study aimed to examine the impact of varying doses of whey protein (WP) and amylopectin/chromium complex (ACr) supplementation on muscle protein synthesis (MPS), amino acid and insulin levels, and the rapamycin (mTOR) signaling pathways in exercised rats. A total of 72 rats were randomly divided into nine groups: (1) Exercise (Ex), (2) Ex + WPI to (5) Ex + WPIV with various oral doses of whey protein (0.465, 1.55, 2.33, and 3.1 g/kg) and (6) Ex + WPI + ACr to (9) Ex + WPIV + ACr with various doses of whey protein combined with 0.155 g/kg ACr. On the day of single-dose administration, the products were given by oral gavage after exercise. To measure the protein fractional synthesis rate (FSR), a bolus dose of deuterium-labeled phenylalanine was given, and its effects were evaluated 1 h after supplementation. Rats that received 3.1 g/kg of whey protein (WP) combined with ACr exhibited the most significant increase in muscle protein synthesis (MPS) compared to the Ex group (115.7%, p < 0.0001). In comparison to rats that received the same dose of WP alone, those given the combination of WP and ACr at the same dosage showed a 14.3% increase in MPS (p < 0.0001). Furthermore, the WP (3.1 g/kg) + ACr group exhibited the highest elevation in serum insulin levels when compared to the Ex group (111.9%, p < 0.0001). Among the different groups, the WP (2.33 g/kg) + ACr group demonstrated the greatest increase in mTOR levels (224.2%, p < 0.0001). Additionally, the combination of WP (2.33 g/kg) and ACr resulted in a 169.8% increase in 4E-BP1 levels (p < 0.0001), while S6K1 levels rose by 141.2% in the WP (2.33 g/kg) + ACr group (p < 0.0001). Overall, supplementation with various doses of WP combined with ACr increased MPS and enhanced the mTOR signaling pathway compared to WP alone and the Ex group.
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Affiliation(s)
- Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, 23119, Turkey.
| | - Cemal Orhan
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, 23119, Turkey
| | - Oguzhan Ozdemir
- Technical Sciences, Vocational School, Department of Veterinary Science, Batman University, Batman, 72000, Turkey
| | - Mehmet Tuzcu
- Department of Biology, Faculty of Science, Firat University, Elazig, 23119, Turkey
| | - Nurhan Sahin
- Department of Animal Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, 23119, Turkey
| | - Sara Perez Ojalvo
- Research and Development Department, Nutrition 21 LLC, Purchase, NY, 10577, USA
| | - James R Komorowski
- Research and Development Department, Nutrition 21 LLC, Purchase, NY, 10577, USA
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24
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Ohira T, Ino Y, Kawao N, Mizukami Y, Okada K, Matsuo O, Hirano H, Kimura Y, Kaji H. Plasminogen deficiency exacerbates skeletal muscle loss during mechanical unloading in developing mice. J Appl Physiol (1985) 2024; 136:643-658. [PMID: 38328826 DOI: 10.1152/japplphysiol.00300.2023] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 01/31/2024] [Indexed: 02/09/2024] Open
Abstract
Mechanical-unloading-induced skeletal muscle atrophy results in physical frailty and disability. Elucidating its mechanism is required to establish effective countermeasures for this muscle adaptation. First, we analyzed the proteome profile in the gastrocnemius (Gast) and soleus muscles of space-flown mice raised under microgravity or artificial 1-g for 30 days, and found that the expression levels of fibrinolysis-related proteins were significantly elevated in the mechanical-unloaded muscles. Next, we investigated the roles of the fibrinolytic system in skeletal muscle atrophy induced by mechanical unloading on the ground. Eight-week-old male mice with plasminogen gene deficiency (Plg-/-) and their wild-type littermates were divided into control and hindlimb-suspended groups and were raised for 21 days. Plasminogen deficiency significantly enhanced the decrease in muscle mass at the lower limbs of mice following hindlimb unloading, and the Gast muscle atrophy was more prominent in Plg-/- mice. In addition, plasminogen deficiency significantly increased the expression of autophagy-related markers, beclin1 mRNA and LC3B protein, in the mechanical-unloaded Gast muscles, but did not affect the increase in the gene expression of ubiquitin ligases, atrogin-1 and MuRF1. Neither plasminogen deficiency nor hindlimb unloading affected the Akt/mechanistic target of rapamycin pathway in the Gast muscles. These results suggested that plasminogen deficiency might accelerate protein breakdown via the autophagy-lysosome, but not the ubiquitin-proteasome, system in the mechanical-unloaded Gast muscles. In conclusion, we first showed that plasminogen deficiency exacerbated the Gast muscle atrophy in hindlimb-unloaded mice. Plasminogen and the fibrinolysis system might play some protective roles against muscle atrophy induced by mechanical unloading in developing mice.NEW & NOTEWORTHY The expression levels of fibrinolysis-related proteins, including plasminogen, were significantly elevated in the gastrocnemius (Gast) and soleus muscles of mice following 30-day microgravity exposure. Plasminogen deficiency exacerbated atrophy of the Gast, but not the soleus, muscles in mice following 21-day hindlimb suspension. It was also suggested that protein breakdown via the autophagy-lysosome system was accelerated in the Gast muscles. Plasminogen might play some protective roles against muscle atrophy induced by mechanical unloading in developing mice.
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Affiliation(s)
- Takashi Ohira
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
- Advanced Medical Research Center, Yokohama City University, Kanagawa, Japan
| | - Yoko Ino
- Advanced Medical Research Center, Yokohama City University, Kanagawa, Japan
| | - Naoyuki Kawao
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Yuya Mizukami
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Kiyotaka Okada
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Osamu Matsuo
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
| | - Hisashi Hirano
- Advanced Medical Research Center, Yokohama City University, Kanagawa, Japan
| | - Yayoi Kimura
- Advanced Medical Research Center, Yokohama City University, Kanagawa, Japan
| | - Hiroshi Kaji
- Department of Physiology and Regenerative Medicine, Kindai University Faculty of Medicine, Osaka, Japan
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Xu J, Zhang D, Ma Y, Du H, Wang Y, Luo W, Wang R, Yi F. ROS in diabetic atria regulate SK2 degradation by Atrogin-1 through the NF-κB signaling pathway. J Biol Chem 2024; 300:105735. [PMID: 38336298 PMCID: PMC10938124 DOI: 10.1016/j.jbc.2024.105735] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 01/13/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024] Open
Abstract
One of the independent risk factors for atrial fibrillation is diabetes mellitus (DM); however, the underlying mechanisms causing atrial fibrillation in DM are unknown. The underlying mechanism of Atrogin-1-mediated SK2 degradation and associated signaling pathways are unclear. The aim of this study was to elucidate the relationship among reactive oxygen species (ROS), the NF-κB signaling pathway, and Atrogin-1 protein expression in the atrial myocardia of DM mice. We found that SK2 expression was downregulated comitant with increased ROS generation and enhanced NF-κB signaling activation in the atrial cardiomyocytes of DM mice. These observations were mimicked by exogenously applicating H2O2 and by high glucose culture conditions in HL-1 cells. Inhibition of ROS production by diphenyleneiodonium chloride or silencing of NF-κB by siRNA decreased the protein expression of NF-κB and Atrogin-1 and increased that of SK2 in HL-1 cells with high glucose culture. Moreover, chromatin immunoprecipitation assay demonstrated that NF-κB/p65 directly binds to the promoter of the FBXO32 gene (encoding Atrogin-1), regulating the FBXO32 transcription. Finally, we evaluated the therapeutic effects of curcumin, known as a NF-κB inhibitor, on Atrogin-1 and SK2 expression in DM mice and confirmed that oral administration of curcumin for 4 weeks significantly suppressed Atrogin-1 expression and protected SK2 expression against hyperglycemia. In summary, the results from this study indicated that the ROS/NF-κB signaling pathway participates in Atrogin-1-mediated SK2 regulation in the atria of streptozotocin-induced DM mice.
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Affiliation(s)
- Jian Xu
- Department of Cardiovascular Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China; Senior Department of Cardiology, The Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Dong Zhang
- Department of Cardiovascular Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yibo Ma
- Department of Cardiovascular Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Hui Du
- Department of Cardiovascular Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yi Wang
- Department of Cardiovascular Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Wenping Luo
- Institute of Cardiovascular and Vascular Disease, Shaanxi University of Traditional Chinese Medicine, Xianyang, China
| | - Ruxing Wang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu, China
| | - Fu Yi
- Department of Cardiovascular Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
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26
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Cho SH, Kim YM, An HJ, Kim JH, Kim NK. miR-665-Mediated Regulation of AHCYL2 and BVES Genes in Recurrent Implantation Failure. Genes (Basel) 2024; 15:244. [PMID: 38397233 PMCID: PMC10888078 DOI: 10.3390/genes15020244] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/06/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
The primary goal of this investigation was to identify mRNA targets affected by dysregulated miRNAs in RIF. This was accomplished by comprehensively analyzing mRNA and miRNA expression profiles in two groups: female subjects with normal reproductive function (control, n = 5) and female subjects experiencing recurrent implantation failure (RIF, n = 5). We conducted transcriptome sequencing and small RNA sequencing on endometrial tissue samples from these cohorts. Subsequently, we validated a selection of intriguing findings using real-time PCR with samples from the same cohort. In total, our analysis revealed that 929 mRNAs exhibited differential expression patterns between the control and RIF patient groups. Notably, our investigation confirmed the significant involvement of dysregulated genes in the context of RIF. Furthermore, we uncovered promising correlation patterns within these mRNA/miRNA pairs. Functional categorization of these miRNA/mRNA pairs highlighted that the differentially expressed genes were predominantly associated with processes such as angiogenesis and cell adhesion. We identified new target genes that are regulated by miR-665, including Blood Vessel Epicardial Substance (BVES) and Adenosylhomocysteinase like 2 (AHCYL2). Our findings suggest that abnormal regulation of genes involved in angiogenesis and cell adhesion, including BVES and AHCYL2, contributes to the endometrial dysfunction observed in women with recurrent implantation failure (RIF) compared to healthy women.
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Affiliation(s)
- Sung Hwan Cho
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea; (S.H.C.); (H.J.A.)
- College of Medicine, Konyang University, Daejeon 35365, Republic of Korea
| | - Young Myeong Kim
- Kangwon Institute of Inclusive Technology, Kangwon National University, Chuncheon 24341, Republic of Korea;
| | - Hui Jeong An
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea; (S.H.C.); (H.J.A.)
- College of Life Science, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
| | - Ji Hyang Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam 13496, Republic of Korea
| | - Nam Keun Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea; (S.H.C.); (H.J.A.)
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Wang L, Tsakiroglou P, Gonzales R, Cho S, Li A, Dos Remedios C, Wright N, Kontrogianni-Konstantopoulos A. Essential role of obscurin kinase-1 in cardiomyocyte coupling via N-cadherin phosphorylation. JCI Insight 2024; 9:e162178. [PMID: 38127465 DOI: 10.1172/jci.insight.162178] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 12/19/2023] [Indexed: 12/23/2023] Open
Abstract
Obscurins are giant cytoskeletal proteins with structural and regulatory roles. Obscurin-B (~870 kDa), the largest known isoform, contains 2 enzymatically active Ser/Thr kinase (kin) domains, kin1 and kin2, which belong to the myosin light chain kinase family. Kin1 binds to and phosphorylates N-cadherin, a major component of the intercalated disc, the unique sarcolemmal microdomain that mediates the mechanochemical coupling of adjacent cardiomyocytes. Obscurin-B containing kin1 and N-cadherin colocalize at cell junctions in embryonic rat ventricular myocytes (ERVMs), and their codistribution is regulated by Ca2+. Phosphoproteomics analysis revealed that obscurin-kin1 phosphorylates N-cadherin at Ser-788 located within the juxtamembrane region of its cytoplasmic domain, with an apparent Kcat of approximately 5.05 min-1. Overexpression of obscurin-kin1 or phosphomimic-Ser-788-Glu N-cadherin in ERVMs markedly increases cell adhesion and chemical coupling. Importantly, phosphomimic Ser-788-Glu N-cadherin exhibits significantly reduced binding to p120-catenin, while overexpression of phosphoablated Ser-788-Ala N-cadherin increases RhoA activity. Consistent with an essential role of the obscurin-kin1/N-cadherin axis in cardiomyocyte coupling, it is deregulated in end-stage human heart failure. Given the nearly ubiquitous expression of obscurin and N-cadherin, our findings may have broad applicability in deciphering the obscurin-kin1/N-cadherin axis that likely mediates cell coupling in diverse tissues and organs.
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Affiliation(s)
- Li Wang
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Panagiotis Tsakiroglou
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Rex Gonzales
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Suhan Cho
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Amy Li
- Sydney Heart Bank, University of Sydney, Australia
- Department of Rural Clinical Sciences, La Trobe University, Bendigo, Victoria, Australia
- Centre for Healthy Futures, Torrens University Australia, Surry Hills, New South Wales, Australia
| | - Cristobal Dos Remedios
- Sydney Heart Bank, University of Sydney, Australia
- Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales, Australia
| | - Nathan Wright
- Department of Chemistry and Biochemistry, James Madison University, Harrisonburg, Virginia, USA
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28
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Pinckaers PJM, Weijzen MEG, Houben LHP, Zorenc AH, Kouw IWK, de Groot LCPGM, Verdijk LB, Snijders T, van Loon LJC. The muscle protein synthetic response following corn protein ingestion does not differ from milk protein in healthy, young adults. Amino Acids 2024; 56:8. [PMID: 38315260 PMCID: PMC10844360 DOI: 10.1007/s00726-023-03377-z] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 11/04/2023] [Indexed: 02/07/2024]
Abstract
Plant-derived proteins are generally believed to possess lesser anabolic properties when compared with animal-derived proteins. This is, at least partly, attributed to the lower leucine content of most plant-derived proteins. Corn protein has a leucine content that is highest among most plant-derived proteins and it even exceeds the levels observed in animal-derived proteins such as whey protein. Therefore, this study aimed to compare muscle protein synthesis rates following the ingestion of 30 g corn protein and a 30 g blend of corn plus milk protein with 30 g milk protein. In a randomized, double blind, parallel-group design, 36 healthy young males (26 ± 4 y) received primed continuous L-[ring-13C6]-phenylalanine infusions and ingested 30 g corn protein (CORN), 30 g milk protein (MILK), or a 30 g proteinblend with 15 g corn plus 15 g milk protein (CORN + MILK). Blood and muscle biopsies were collected for 5 h following protein ingestion to assess post-prandial plasma amino acid profiles and myofibrillar protein synthesis rates. The results show that Ingestion of protein increased myofibrillar protein synthesis rates from basal post-absorptive values in all treatments(P < 0.001). Post-prandial myofibrillar protein synthesis rates did not differ between CORN vs MILK (0.053 ± 0.013 vs 0.053 ± 0.013%∙h-1, respectively; t-test P = 0.90), or between CORN + MILK vs MILK (0.052 ± 0.024 vs 0.053 ± 0.013%∙h-1, respectively; t-test P = 0.92). Ingestion of 30 g corn protein, 30 g milk protein, or a blend of 15 g corn plus 15 g milk protein robustly increases muscle protein synthesis rates in young males. The muscle protein synthetic response to the ingestion of 30 g corn-derived protein does not differ from the ingestion of an equivalent amount of milk protein in healthy, young males. Clinical Trial Registry number. NTR6548 (registration date: 27-06-2017) https://www.trialregister.nl/ .
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Affiliation(s)
- Philippe J M Pinckaers
- TiFN, Wageningen, The Netherlands
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 616 6200 MD, Maastricht, The Netherlands
| | - Michelle E G Weijzen
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 616 6200 MD, Maastricht, The Netherlands
| | - Lisanne H P Houben
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 616 6200 MD, Maastricht, The Netherlands
| | - Antoine H Zorenc
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 616 6200 MD, Maastricht, The Netherlands
| | - Imre W K Kouw
- TiFN, Wageningen, The Netherlands
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 616 6200 MD, Maastricht, The Netherlands
| | - Lisette C P G M de Groot
- TiFN, Wageningen, The Netherlands
- Division of Human Nutrition & Health, Department of Agrotechnology and Food Sciences, Wageningen University, Wageningen, The Netherlands
| | - Lex B Verdijk
- TiFN, Wageningen, The Netherlands
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 616 6200 MD, Maastricht, The Netherlands
| | - Tim Snijders
- TiFN, Wageningen, The Netherlands
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 616 6200 MD, Maastricht, The Netherlands
| | - Luc J C van Loon
- TiFN, Wageningen, The Netherlands.
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 616 6200 MD, Maastricht, The Netherlands.
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29
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Mazzeo L, Ghosh S, Di Cicco E, Isma J, Tavernari D, Samarkina A, Ostano P, Youssef MK, Simon C, Dotto GP. ANKRD1 is a mesenchymal-specific driver of cancer-associated fibroblast activation bridging androgen receptor loss to AP-1 activation. Nat Commun 2024; 15:1038. [PMID: 38310103 PMCID: PMC10838290 DOI: 10.1038/s41467-024-45308-w] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 01/19/2024] [Indexed: 02/05/2024] Open
Abstract
There are significant commonalities among several pathologies involving fibroblasts, ranging from auto-immune diseases to fibrosis and cancer. Early steps in cancer development and progression are closely linked to fibroblast senescence and transformation into tumor-promoting cancer-associated fibroblasts (CAFs), suppressed by the androgen receptor (AR). Here, we identify ANKRD1 as a mesenchymal-specific transcriptional coregulator under direct AR negative control in human dermal fibroblasts (HDFs) and a key driver of CAF conversion, independent of cellular senescence. ANKRD1 expression in CAFs is associated with poor survival in HNSCC, lung, and cervical SCC patients, and controls a specific gene expression program of myofibroblast CAFs (my-CAFs). ANKRD1 binds to the regulatory region of my-CAF effector genes in concert with AP-1 transcription factors, and promotes c-JUN and FOS association. Targeting ANKRD1 disrupts AP-1 complex formation, reverses CAF activation, and blocks the pro-tumorigenic properties of CAFs in an orthotopic skin cancer model. ANKRD1 thus represents a target for fibroblast-directed therapy in cancer and potentially beyond.
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Affiliation(s)
- Luigi Mazzeo
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Soumitra Ghosh
- ORL service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Emery Di Cicco
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Jovan Isma
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | - Daniele Tavernari
- Department of Computational Biology, University of Lausanne, Lausanne, Switzerland
- Swiss Cancer Center Léman, Lausanne, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | | | - Paola Ostano
- Cancer Genomics Laboratory, Edo and Elvo Tempia Valenta Foundation, Biella, 13900, Italy
| | - Markus K Youssef
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | - Christian Simon
- ORL service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
- International Cancer Prevention Institute, Epalinges, Switzerland
| | - G Paolo Dotto
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland.
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.
- ORL service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
- International Cancer Prevention Institute, Epalinges, Switzerland.
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30
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van Gassel RJ, Weijzen ME, Kouw IW, Senden JM, Wodzig WK, Olde Damink SW, van de Poll MC, van Loon LJ. Administration of Free Amino Acids Improves Exogenous Amino Acid Availability when Compared with Intact Protein in Critically Ill Patients: A Randomized Controlled Study. J Nutr 2024; 154:554-564. [PMID: 38103646 DOI: 10.1016/j.tjnut.2023.12.015] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 11/24/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023] Open
Abstract
BACKGROUND Protein digestion and amino acid absorption appear compromised in critical illness. The provision of enteral feeds with free amino acids rather than intact protein may improve postprandial amino acid availability. OBJECTIVE Our objective was to quantify the uptake of diet-derived phenylalanine after the enteral administration of intact protein compared with an equivalent amount of free amino acids in critically ill patients. METHODS Sixteen patients who were mechanically ventilated in intensive care unit (ICU) at risk of malabsorption received a primed continuous infusion of L-[ring-2H5]-phenylalanine and L-[ring-3,5-2H2]-tyrosine after an overnight fast. Patients were randomly allocated to receive 20 g intrinsically L-[1-13C]-phenylalanine-labeled milk protein or an equivalent amount of amino acids labeled with free L-[1-13C]-phenylalanine via a nasogastric tube over a 2-h period. Protein digestion and amino acid absorption kinetics and whole-body protein net balance were assessed throughout a 6-h period. RESULTS After enteral nutrient infusion, both plasma phenylalanine and leucine concentrations increased (P-time < 0.001), with a more rapid and greater rise after free amino acid compared with intact protein administration (P-time × treatment = 0.003). Diet-derived phenylalanine released into the circulation was 25% greater after free amino acids compared with intact protein administration [68.7% (confidence interval {CI}: 62.3, 75.1%) compared with 43.8% (CI: 32.4, 55.2%), respectively; P < 0.001]. Whole-body protein net balance became positive after nutrient administration (P-time < 0.001) and tended to be more positive after free amino acid in provision (P-time × treatment = 0.07). CONCLUSIONS The administration of free amino acids as opposed to intact protein further increases postprandial plasma amino acid availability in critically ill patients, allowing more diet-derived phenylalanine to become available to peripheral tissues. This trial was registered at clinicaltrials.gov as NCT04791774.
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Affiliation(s)
- Rob Jj van Gassel
- Department of Surgery, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands; Department of Intensive Care Medicine, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands.
| | - Michelle Eg Weijzen
- Department of Human Biology, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands
| | - Imre Wk Kouw
- Department of Human Biology, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands
| | - Joan Mg Senden
- Department of Human Biology, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands
| | - Will Khw Wodzig
- Central Diagnostic Laboratory, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands
| | - Steven Wm Olde Damink
- Department of Surgery, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands; Department of General, Visceral- and Transplantation Surgery, RWTH Aachen University, Aachen, Germany
| | - Marcel Cg van de Poll
- Department of Surgery, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands; Department of Intensive Care Medicine, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands
| | - Luc Jc van Loon
- Department of Human Biology, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre +, Maastricht, The Netherlands
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de Winter JM, Molenaar JP, Yuen M, van der Pijl R, Shen S, Conijn S, van de Locht M, Willigenburg M, Bogaards SJ, van Kleef ES, Lassche S, Persson M, Rassier DE, Sztal TE, Ruparelia AA, Oorschot V, Ramm G, Hall TE, Xiong Z, Johnson CN, Li F, Kiss B, Lozano-Vidal N, Boon RA, Marabita M, Nogara L, Blaauw B, Rodenburg RJ, Küsters B, Doorduin J, Beggs AH, Granzier H, Campbell K, Ma W, Irving T, Malfatti E, Romero NB, Bryson-Richardson RJ, van Engelen BG, Voermans NC, Ottenheijm CA. KBTBD13 is an actin-binding protein that modulates muscle kinetics. J Clin Invest 2024; 134:e179111. [PMID: 38299595 PMCID: PMC10836800 DOI: 10.1172/jci179111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024] Open
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32
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Kang X, Qian J, Shi YX, Bian XT, Zhang LD, Li GM, Wang LT, Zhao J, Dong ZY, Yang MM, Chen YJN, Tang KL, Miao HM. Exercise-induced Musclin determines the fate of fibro-adipogenic progenitors to control muscle homeostasis. Cell Stem Cell 2024; 31:212-226.e7. [PMID: 38232727 DOI: 10.1016/j.stem.2023.12.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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] [Received: 11/04/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 01/19/2024]
Abstract
The effects of exercise on fibro-adipogenic progenitors (FAPs) are unclear, and the direct molecular link is still unknown. In this study, we reveal that exercise reduces the frequency of FAPs and attenuates collagen deposition and adipose formation in injured or disused muscles through Musclin. Mechanistically, Musclin inhibits FAP proliferation and promotes apoptosis in FAPs by upregulating FILIP1L. Chromatin immunoprecipitation (ChIP)-qPCR confirms that FoxO3a is the transcription factor of FILIP1L. In addition, the Musclin/FILIP1L pathway facilitates the phagocytosis of apoptotic FAPs by macrophages through downregulating the expression of CD47. Genetic ablation of FILIP1L in FAPs abolishes the effects of exercise or Musclin on FAPs and the benefits on the reduction of fibrosis and fatty infiltration. Overall, exercise forms a microenvironment of myokines in muscle and prevents the abnormal accumulation of FAPs in a Musclin/FILIP1L-dependent manner. The administration of exogenous Musclin exerts a therapeutic effect, demonstrating a potential therapeutic approach for muscle atrophy or acute muscle injury.
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Affiliation(s)
- Xia Kang
- Department of Pathophysiology, College of High Altitude Military Medicine, Army Medical University, Chongqing 400038, China; Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu 610000, Sichuan, China.
| | - Jin Qian
- Department of Pathophysiology, College of High Altitude Military Medicine, Army Medical University, Chongqing 400038, China
| | - You-Xing Shi
- Department of Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - Xu-Ting Bian
- Department of Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - Li-Dan Zhang
- Center for Medical Epigenetics, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400038, China
| | - Gao-Ming Li
- Department of Health Statistics, Army Medical University, Chongqing 400038, China
| | - Li-Ting Wang
- Biomedical Analysis Center, Army Medical University, Chongqing 400038, China
| | - Jing Zhao
- Biomedical Analysis Center, Army Medical University, Chongqing 400038, China
| | - Zhen-Yu Dong
- Department of Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - Meng-Meng Yang
- Center for Medical Epigenetics, School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400038, China
| | - Yu-Jia-Nan Chen
- Department of Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Army Medical University, Chongqing 400038, China
| | - Kang-Lai Tang
- Department of Sports Medicine Center, State Key Laboratory of Trauma, Burn and Combined Injury, First Affiliated Hospital of Army Medical University, Chongqing 400038, China.
| | - Hong-Ming Miao
- Department of Pathophysiology, College of High Altitude Military Medicine, Army Medical University, Chongqing 400038, China; Jinfeng Laboratory, Chongqing 401329, China.
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33
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Li Y, Fujishita T, Mishiro‐Sato E, Kojima Y, Niu Y, Taketo MM, Urano Y, Sakai T, Enomoto A, Nishida Y, Aoki M. TGF-β signaling promotes desmoid tumor formation via CSRP2 upregulation. Cancer Sci 2024; 115:401-411. [PMID: 38041233 PMCID: PMC10859603 DOI: 10.1111/cas.16037] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/19/2023] [Accepted: 11/20/2023] [Indexed: 12/03/2023] Open
Abstract
Desmoid tumors (DTs), also called desmoid-type fibromatoses, are locally aggressive tumors of mesenchymal origin. In the present study, we developed a novel mouse model of DTs by inducing a local mutation in the Ctnnb1 gene, encoding β-catenin in PDGFRA-positive stromal cells, by subcutaneous injection of 4-hydroxy-tamoxifen. Tumors in this model resembled histologically clinical samples from DT patients and showed strong phosphorylation of nuclear SMAD2. Knockout of SMAD4 in the model significantly suppressed tumor growth. Proteomic analysis revealed that SMAD4 knockout reduced the level of Cysteine-and-Glycine-Rich Protein 2 (CSRP2) in DTs, and treatment of DT-derived cells with a TGF-β receptor inhibitor reduced CSRP2 RNA levels. Knockdown of CSRP2 in DT cells significantly suppressed their proliferation. These results indicate that the TGF-β/CSRP2 axis is a potential therapeutic target for DTs downstream of TGF-β signaling.
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Affiliation(s)
- Yu Li
- Division of PathophysiologyAichi Cancer Center Research InstituteNagoyaJapan
- Department of Plastic Reconstructive SurgeryNagoya University Graduate School of MedicineNagoyaJapan
| | - Teruaki Fujishita
- Division of PathophysiologyAichi Cancer Center Research InstituteNagoyaJapan
| | - Emi Mishiro‐Sato
- Division of PathophysiologyAichi Cancer Center Research InstituteNagoyaJapan
- Molecular Structure CenterInstitute of Transformative Bio‐Molecules (WPI‐ITbM), Nagoya UniversityNagoyaJapan
| | - Yasushi Kojima
- Division of PathophysiologyAichi Cancer Center Research InstituteNagoyaJapan
| | - Yanqing Niu
- Division of PathophysiologyAichi Cancer Center Research InstituteNagoyaJapan
| | - Makoto Mark Taketo
- Colon Cancer ProjectKyoto University Hospital‐iACT, Graduate School of Medicine, Kyoto UniversityKyotoJapan
| | - Yuya Urano
- Department of PathologyNagoya University Graduate School of MedicineNagoyaJapan
| | - Tomohisa Sakai
- Department of Orthopedic SurgeryNagoya University Graduate School of MedicineNagoyaJapan
| | - Atsushi Enomoto
- Department of PathologyNagoya University Graduate School of MedicineNagoyaJapan
| | | | - Masahiro Aoki
- Division of PathophysiologyAichi Cancer Center Research InstituteNagoyaJapan
- Department of Cancer PhysiologyNagoya University Graduate School of MedicineNagoyaJapan
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Quan J, Ma C. DNMT1-mediated regulating on FBXO32 promotes the progression of glioma cells through the regulation of SKP1 activity. Environ Toxicol 2024; 39:783-793. [PMID: 37782699 DOI: 10.1002/tox.23976] [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] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 10/04/2023]
Abstract
Glioma, a prevalent and serious form of brain cancer, is associated with dysregulation of DNA methylation, where DNA methyltransferase-1 (DNMT1) plays a significant role in glioma progression. However, the involvement of F-box protein 32 (FBXO32) in glioma and its regulation by DNMT1-mediated methylation remain poorly understood. In this study, we investigated FBXO32 expression in glioma cells with high DNMT1 expression using the online dataset and correlated it with patient survival. Then impact of elevated FBXO32 expression on cell proliferation, migration, and invasion was evaluated, along with the examination of EMT-related proteins. Furthermore, a xenograft model established by injecting glioma cells stably transfected with FBXO32 was used to evaluate tumor growth, volume, and weight. The ChIP assay was employed to study the interaction between DNMT1 and the FBXO32 promoter, revealing that DNMT1 negatively correlated with FBXO32 expression in glioma cells and promoted FBXO32 promoter methylation. Moreover, we investigated the interaction between FBXO32 and SKP1 using Co-IP and GST pulldown assays, discovering that FBXO32 acts as an E3 ubiquitin ligase and promotes SKP1 ubiquitination, leading to its degradation. Interestingly, our findings demonstrated that high FBXO32 expression was associated with improved overall survival in glioma patients. Knockdown of DNMT1 in glioma cells increased FBXO32 expression and suppressed malignant phenotypes, suggesting that FBXO32 functions as a tumor suppressor in glioma. In conclusion, this study reveals a novel regulatory mechanism involving DNMT1-mediated FBXO32 expression in glioma cells, where FBXO32 acts as an E3 ubiquitin ligase to degrade SKP1 via ubiquitination. This FBXO32-mediated regulation of SKP1 activity contributes to the progression of glioma cells. These findings provide important insights into the molecular mechanisms underlying glioma progression and may hold promise for the development of targeted therapies for glioma patients.
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Affiliation(s)
- Junjie Quan
- Department of Neurosurgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Chengwen Ma
- Department of Neurosurgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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35
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Gu X, Li P, Gao X, Ru Y, Xue C, Zhang S, Liu Y, Hu X. RNA 5-methylcytosine writer NSUN5 promotes hepatocellular carcinoma cell proliferation via a ZBED3-dependent mechanism. Oncogene 2024; 43:624-635. [PMID: 38182896 PMCID: PMC10890930 DOI: 10.1038/s41388-023-02931-z] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/17/2023] [Accepted: 12/21/2023] [Indexed: 01/07/2024]
Abstract
Hepatocellular carcinoma (HCC) is one of the leading contributors to cancer-related mortality worldwide. Nop2/Sun domain family member 5 (NSUN5), a conserved RNA 5-methylcytosine methyltransferase, is conventionally recognized as oncogenic. However, its role in HCC development remains unknown. In this study, we observed a remarkable upregulation of NSUN5 expression in both tumor tissues from patients with HCC, establishing a correlation with unfavorable clinical outcomes. NSUN5 knockdown and overexpression significantly inhibited and promoted HCC cell proliferation, respectively. Additionally, employing a combination of methylated RNA immunoprecipitation sequencing (MeRIP-seq) and RIP-seq techniques, we identified zinc finger BED domain-containing protein 3 (ZBED3) as a novel downstream target of NSUN5. Additionally, we found that the overexpression of ZBED3 counteracted the tumor-suppressing effect of NSUN5 knockdown and simultaneously reversed the inhibition of the Wnt/β-catenin signaling pathway. In summary, we elucidated the oncogenic role of NSUN5 in HCC development and identified the ZBED3/Wnt/β-catenin signaling pathway as its downstream target. This study provides a novel therapeutic target for further development in HCC treatment.
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Affiliation(s)
- Xinyu Gu
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China.
| | - Penghui Li
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Xiaohui Gao
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Yi Ru
- Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Chen Xue
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Shujun Zhang
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Yafeng Liu
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Xinjun Hu
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China.
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Ono S. Segregated localization of two calponin-related proteins within sarcomeric thin filaments in Caenorhabditis elegans striated muscle. Cytoskeleton (Hoboken) 2024; 81:127-140. [PMID: 37792405 DOI: 10.1002/cm.21794] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/05/2023]
Abstract
The calponin family proteins are expressed in both muscle and non-muscle cells and involved in the regulation of cytoskeletal dynamics and cell contractility. In the nematode Caenorhabditis elegans, UNC-87 and CLIK-1 are calponin-related proteins with 42% identical amino acid sequences containing seven calponin-like motifs. Genetic studies demonstrated that UNC-87 and CLIK-1 have partially redundant function in regulating actin cytoskeletal organization in striated and non-striated muscle cells. However, biochemical studies showed that UNC-87 and CLIK-1 are different in their ability to bundle actin filaments. In this study, I extended comparison between UNC-87 and CLIK-1 and found additional differences in vitro and in vivo. Although UNC-87 and CLIK-1 bound to actin filaments similarly, UNC-87, but not CLIK-1, bound to myosin and inhibited actomyosin ATPase in vitro. In striated muscle, UNC-87 and CLIK-1 were segregated into different subregions within sarcomeric actin filaments. CLIK-1 was concentrated near the actin pointed ends, whereas UNC-87 was enriched toward the actin barbed ends. Restricted localization of UNC-87 was not altered in a clik-1-null mutant, suggesting that their segregated localization is not due to competition between the two related proteins. These results suggest that the two calponin-related proteins have both common and distinct roles in regulating actin filaments.
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Affiliation(s)
- Shoichiro Ono
- Departments of Pathology and Cell Biology, Emory University School of Medicine, Atlanta, Georgia, USA
- Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
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Dideriksen K, Reitelseder S, Boesen AP, Zillmer M, Agergaard J, Kjaer M, Holm L. Lower basal and postprandial muscle protein synthesis after 2 weeks single-leg immobilization in older men: No protective effect of anti-inflammatory medication. Physiol Rep 2024; 12:e15958. [PMID: 38406891 PMCID: PMC10895449 DOI: 10.14814/phy2.15958] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 02/05/2024] [Accepted: 02/05/2024] [Indexed: 02/27/2024] Open
Abstract
Muscle inactivity may reduce basal and postprandial muscle protein synthesis (MPS) rates in humans. Anti-inflammatory treatment alleviates the MPS impairments in younger individuals. The present study explored the influence of nonsteroidal anti-inflammatory drugs (NSAIDs) upon MPS during a period of inactivity in older humans. Eighteen men (age 60-80 years) were allocated to ibuprofen (1200 mg/day, Ibu) or control (Plc) groups. One lower limb was cast immobilized for 2 weeks. Postabsorptive and postprandial MPS was measured before and after the immobilization by L-[ring-13 C6 ]-phenylalanine infusion. The protein expression of select anabolic signaling molecules was investigated by western blot. Basal (0.038 ± 0.002%/h and 0.039 ± 0.005%/h, Plc and Ibu, respectively) and postprandial (0.064 ± 0.004%/h and 0.067 ± 0.010%/h, Plc and Ibu, respectively) MPS rate were higher pre-immobilization compared to basal (0.019 ± 0.005%/h and 0.020 ± 0.010%/h, Plc and Ibu, respectively) and postprandial (0.033 ± 0.005%/h and 0.037 ± 0.006%/h, Plc and Ibu, respectively) MPS rate post-immobilization (p < 0.001). NSAID treatment did not affect the suppression of MPS (p > 0.05). The anabolic signaling were in general reduced after immobilization (p < 0.05). These changes were unaffected by NSAID treatment (p > 0.05). Basal and postprandial MPS dropped markedly after 2 weeks of lower limb immobilization. NSAID treatment neither influenced the reduction in MPS nor the anabolic signaling after immobilization in healthy older individuals.
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Affiliation(s)
- K Dideriksen
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - S Reitelseder
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, Institute of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - A P Boesen
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - M Zillmer
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - J Agergaard
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - M Kjaer
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - L Holm
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, Institute of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
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Qi T, Zhang J, Zhang K, Zhang W, Song Y, Lian K, Kan C, Han F, Hou N, Sun X. Unraveling the role of the FHL family in cardiac diseases: Mechanisms, implications, and future directions. Biochem Biophys Res Commun 2024; 694:149468. [PMID: 38183876 DOI: 10.1016/j.bbrc.2024.149468] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/23/2023] [Accepted: 01/02/2024] [Indexed: 01/08/2024]
Abstract
Heart diseases are a major cause of morbidity and mortality worldwide. Understanding the molecular mechanisms underlying these diseases is essential for the development of effective diagnostic and therapeutic strategies. The FHL family consists of five members: FHL1, FHL2, FHL3, FHL4, and FHL5/Act. These members exhibit different expression patterns in various tissues including the heart. FHL family proteins are implicated in cardiac remodeling, regulation of metabolic enzymes, and cardiac biomechanical stress perception. A large number of studies have explored the link between FHL family proteins and cardiac disease, skeletal muscle disease, and ovarian metabolism, but a comprehensive and in-depth understanding of the specific molecular mechanisms targeting FHL on cardiac disease is lacking. The aim of this review is to explore the structure and function of FHL family members, to comprehensively elucidate the mechanisms by which they regulate the heart, and to explore in depth the changes in FHL family members observed in different cardiac disorders, as well as the effects of mutations in FHL proteins on heart health.
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Affiliation(s)
- Tongbing Qi
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China
| | - Jingwen Zhang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China
| | - Kexin Zhang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China
| | - Wenqiang Zhang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China
| | - Yixin Song
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China
| | - Kexin Lian
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China
| | - Chengxia Kan
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China
| | - Fang Han
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China
| | - Ningning Hou
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China.
| | - Xiaodong Sun
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang, 261031, China.
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Sugimoto T, Sakamaki C, Kimura T, Eguchi T, Miura S, Kamei Y. Peroxisome proliferator-activated receptor γ coactivator 1α regulates downstream of tyrosine kinase-7 (Dok-7) expression important for neuromuscular junction formation. Sci Rep 2024; 14:1780. [PMID: 38245592 PMCID: PMC10799880 DOI: 10.1038/s41598-024-52198-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 01/15/2024] [Indexed: 01/22/2024] Open
Abstract
The neuromuscular junction (NMJ)-formed between a motor nerve terminal and skeletal muscle fiber-plays an important role in muscle contraction and other muscle functions. Aging and neurodegeneration worsen NMJ formation and impair muscle function. Downstream of tyrosine kinase-7 (Dok-7), expressed in skeletal muscle fibers, is essential for the formation of NMJ. Exercise increases the expression of the transcriptional coactivator peroxisome proliferator-activated receptor γ coactivator 1α (PGC1α) in skeletal muscles and restores NMJ formation. In this study, we used skeletal muscle-specific PGC1α knockout or overexpression mice to examine the role of PGC1α in regulating Dok-7 expression and NMJ formation. Our findings revealed that Dok-7 expression is regulated by PGC1α, and luciferase activity of the Dok-7 promoter is greatly increased by coexpressing PGC1α and estrogen receptor-related receptor α. Thus, we suggest PGC1α is involved in exercise-mediated restoration of NMJ formation.
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Affiliation(s)
- Takumi Sugimoto
- Laboratory of Molecular Nutrition, Graduate School of Environmental and Life Science, Kyoto Prefectural University, Kyoto, Japan
| | - Chihiro Sakamaki
- Laboratory of Molecular Nutrition, Graduate School of Environmental and Life Science, Kyoto Prefectural University, Kyoto, Japan
| | - Tokushi Kimura
- Laboratory of Molecular Nutrition, Graduate School of Environmental and Life Science, Kyoto Prefectural University, Kyoto, Japan
| | - Takahiro Eguchi
- Brain-Skeletal Muscle Connection in Aging Project Team, Geroscience Research Center, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Shinji Miura
- Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - Yasutomi Kamei
- Laboratory of Molecular Nutrition, Graduate School of Environmental and Life Science, Kyoto Prefectural University, Kyoto, Japan.
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40
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McAfee Q, Caporizzo MA, Uchida K, Bedi KC, Margulies KB, Arany Z, Prosser BL. Truncated titin protein in dilated cardiomyopathy incorporates into the sarcomere and transmits force. J Clin Invest 2024; 134:e170196. [PMID: 37943622 PMCID: PMC10786684 DOI: 10.1172/jci170196] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023] Open
Affiliation(s)
| | - Matthew A. Caporizzo
- Department of Physiology, Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Keita Uchida
- Department of Physiology, Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | | | - Zolt Arany
- Cardiovascular Institute, Department of Medicine and
| | - Benjamin L. Prosser
- Department of Physiology, Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Larson KR, Jayakrishnan D, Soto Sauza KA, Goodson ML, Chaffin AT, Davidyan A, Pathak S, Fang Y, Gonzalez Magaña D, Miller BF, Ryan KK. FGF21 Induces Skeletal Muscle Atrophy and Increases Amino Acids in Female Mice: A Potential Role for Glucocorticoids. Endocrinology 2024; 165:bqae004. [PMID: 38244215 PMCID: PMC10849119 DOI: 10.1210/endocr/bqae004] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/27/2023] [Accepted: 01/18/2024] [Indexed: 01/22/2024]
Abstract
Fibroblast growth factor-21 (FGF21) is an intercellular signaling molecule secreted by metabolic organs, including skeletal muscle, in response to intracellular stress. FGF21 crosses the blood-brain barrier and acts via the nervous system to coordinate aspects of the adaptive starvation response, including increased lipolysis, gluconeogenesis, fatty acid oxidation, and activation of the hypothalamic-pituitary-adrenocortical (HPA) axis. Given its beneficial effects for hepatic lipid metabolism, pharmaceutical FGF21 analogues are used in clinical trials treatment of fatty liver disease. We predicted pharmacologic treatment with FGF21 increases HPA axis activity and skeletal muscle glucocorticoid signaling and induces skeletal muscle atrophy in mice. Here we found a short course of systemic FGF21 treatment decreased muscle protein synthesis and reduced tibialis anterior weight; this was driven primarily by its effect in female mice. Similarly, intracerebroventricular FGF21 reduced tibialis anterior muscle fiber cross-sectional area; this was more apparent among female mice than male littermates. In agreement with the reduced muscle mass, the topmost enriched metabolic pathways in plasma collected from FGF21-treated females were related to amino acid metabolism, and the relative abundance of plasma proteinogenic amino acids was increased up to 3-fold. FGF21 treatment increased hypothalamic Crh mRNA, plasma corticosterone, and adrenal weight, and increased expression of glucocorticoid receptor target genes known to reduce muscle protein synthesis and/or promote degradation. Given the proposed use of FGF21 analogues for the treatment of metabolic disease, the study is both physiologically relevant and may have important clinical implications.
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Affiliation(s)
- Karlton R Larson
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
| | - Devi Jayakrishnan
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
| | - Karla A Soto Sauza
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
| | - Michael L Goodson
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
| | - Aki T Chaffin
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
| | - Arik Davidyan
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
- Department of Biological Sciences, California State University Sacramento, Sacramento, CA 95819, USA
| | - Suraj Pathak
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
| | - Yanbin Fang
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
| | - Diego Gonzalez Magaña
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
| | - Benjamin F Miller
- Aging & Metabolism Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK 73104, USA
| | - Karen K Ryan
- Department of Neurobiology, Physiology, and Behavior, College of Biological Sciences, University of California Davis, Davis, CA 95616, USA
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Pavis GF, Abdelrahman DR, Murton AJ, Wall BT, Stephens FB, Dirks ML. Nasogastric bolus administration of a protein-rich drink augments insulinaemia and aminoacidaemia but not whole-body protein turnover or muscle protein synthesis versus oral administration. Clin Sci (Lond) 2024; 138:43-60. [PMID: 38112515 DOI: 10.1042/cs20231126] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 12/21/2023]
Abstract
Nasogastric feeding of protein-rich liquids is a nutritional support therapy that attenuates muscle mass loss. However, whether administration via a nasogastric tube per se augments whole-body or muscle protein anabolism compared with oral administration is unknown. Healthy participants were administered a protein-rich drink (225 ml containing 21 g protein) orally (ORAL; n=13; age 21 ± 1 year; BMI 22.2 ± 0.6 kg·m-2) or via a nasogastric tube (NG; n=13; age 21 ± 1 yr; BMI 23.9 ± 0.9 kg·m-2) in a parallel group design, balanced for sex. L-[ring-2H5]-phenylalanine and L-[3,3-2H2]-tyrosine were infused to measure postabsorptive and postprandial whole-body protein turnover. Skeletal muscle biopsies were collected at -120, 0, 120 and 300 min relative to drink administration to quantify temporal myofibrillar fractional synthetic rates (myoFSR). Drink administration increased serum insulin and plasma amino acid concentrations, and to a greater extent and duration in NG versus ORAL (all interactions P<0.05). Drink administration increased whole-body protein synthesis (P<0.01), suppressed protein breakdown (P<0.001), and created positive net protein balance (P<0.001), but to a similar degree in ORAL and NG (interactions P>0.05). Drink administration increased myoFSR from the postabsorptive state (P<0.01), regardless of route of administration in ORAL and in NG (interaction P>0.05). Nasogastric bolus administration of a protein-rich drink induces insulinaemia and aminoacidaemia to a greater extent than oral administration, but the postprandial increase in whole-body protein turnover and muscle protein synthesis was equivalent between administration routes. Nasogastric administration is a potent intervention to increase postprandial amino acid availability. Future work should assess its utility in overcoming impaired sensitivity to protein feeding, such as that seen in ageing, disuse, and critical care.
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Affiliation(s)
- George F Pavis
- Nutritional Physiology Group, Department of Public Health and Sport Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter, Devon, U.K
| | - Doaa R Abdelrahman
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, U.S.A
- Sealy Center on Aging, University of Texas Medical Branch, Galveston, TX, U.S.A
| | - Andrew J Murton
- Department of Surgery, University of Texas Medical Branch, Galveston, TX, U.S.A
- Sealy Center on Aging, University of Texas Medical Branch, Galveston, TX, U.S.A
| | - Benjamin T Wall
- Nutritional Physiology Group, Department of Public Health and Sport Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter, Devon, U.K
| | - Francis B Stephens
- Nutritional Physiology Group, Department of Public Health and Sport Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter, Devon, U.K
| | - Marlou L Dirks
- Nutritional Physiology Group, Department of Public Health and Sport Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter, Devon, U.K
- Human and Animal Physiology, Wageningen University, Wageningen, The Netherlands
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Tang J, Wu C, Xu Y, Yang B, Xi Y, Cai M, Tian Z. Resistance training up-regulates Smyd1 expression and inhibits oxidative stress and endoplasmic reticulum stress in the heart of middle-aged mice. Free Radic Biol Med 2024; 210:304-317. [PMID: 38042222 DOI: 10.1016/j.freeradbiomed.2023.11.029] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/15/2023] [Accepted: 11/26/2023] [Indexed: 12/04/2023]
Abstract
Persistent oxidative stress and endoplasmic reticulum (ER) stress are the primary mechanisms of age-related cardiovascular diseases. Although exercise training is viewed as an effective anti-aging approach, further exploration is needed to identify the mechanisms and functional targets. In this study, the impact of resistance training (RT) on the expression of Smyd1, the levels of reactive oxygen species (ROS) and the expression of ER stress-related protein in the hearts of mice of different ages were assessed. In addition, the role of Smyd1 in the aging-induced oxidative stress and ER stress were evaluated in d-galactose (D-gal)-treated H9C2 cells. We demonstrated that RT in middle age increased the expression of Smyd1 and restricted heart aging-induced ER stress. Overexpression of Smyd1 restrained oxidative stress and ER stress in D-gal-treated H9C2 cells, while the inhibition of Nrf2 and Smyd1 escalated ER stress. These findings demonstrate that Smyd1 has significant impact in regulating age-related ER stress. RT in middle age can up-regulates Smyd1 expression and inhibits oxidative stress and ER stress in the heart.
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Affiliation(s)
- Jie Tang
- Institute of Sports Biology, College of Physical Education, Shaanxi Normal University, Xi'an, 710119, PR China
| | - Chenyang Wu
- Institute of Sports Biology, College of Physical Education, Shaanxi Normal University, Xi'an, 710119, PR China
| | - Yuxiang Xu
- Institute of Sports Biology, College of Physical Education, Shaanxi Normal University, Xi'an, 710119, PR China
| | - Boran Yang
- Institute of Sports Biology, College of Physical Education, Shaanxi Normal University, Xi'an, 710119, PR China
| | - Yue Xi
- Institute of Sports Biology, College of Physical Education, Shaanxi Normal University, Xi'an, 710119, PR China
| | - Mengxin Cai
- Institute of Sports Biology, College of Physical Education, Shaanxi Normal University, Xi'an, 710119, PR China.
| | - Zhenjun Tian
- Institute of Sports Biology, College of Physical Education, Shaanxi Normal University, Xi'an, 710119, PR China
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Cervone DT, Moreno-Justicia R, Quesada JP, Deshmukh AS. Mass spectrometry-based proteomics approaches to interrogate skeletal muscle adaptations to exercise. Scand J Med Sci Sports 2024; 34:e14334. [PMID: 36973869 DOI: 10.1111/sms.14334] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 03/29/2023]
Abstract
Acute exercise and chronic exercise training elicit beneficial whole-body changes in physiology that ultimately depend on profound alterations to the dynamics of tissue-specific proteins. Since the work accomplished during exercise owes predominantly to skeletal muscle, it has received the majority of interest from exercise scientists that attempt to unravel adaptive mechanisms accounting for salutary metabolic effects and performance improvements that arise from training. Contemporary scientists are also beginning to use mass spectrometry-based proteomics, which is emerging as a powerful approach to interrogate the muscle protein signature in a more comprehensive manner. Collectively, these technologies facilitate the analysis of skeletal muscle protein dynamics from several viewpoints, including changes to intracellular proteins (expression proteomics), secreted proteins (secretomics), post-translational modifications as well as fiber-, cell-, and organelle-specific changes. This review aims to highlight recent literature that has leveraged new workflows and advances in mass spectrometry-based proteomics to further our understanding of training-related changes in skeletal muscle. We call attention to untapped areas in skeletal muscle proteomics research relating to exercise training and metabolism, as well as basic points of contention when applying mass spectrometry-based analyses, particularly in the study of human biology. We further encourage researchers to couple the hypothesis-generating and descriptive nature of omics data with functional analyses that propel our understanding of the complex adaptive responses in skeletal muscle that occur with acute and chronic exercise.
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Affiliation(s)
- Daniel T Cervone
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Roger Moreno-Justicia
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Júlia Prats Quesada
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Atul S Deshmukh
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
- Clinical Proteomics, Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark
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Yoshihara T, Dobashi S, Naito H. Pre-heating stress associated with acute oral leucine supplementation effects in rat gastrocnemius muscle: Implications for protein synthesis signaling pathways. J Therm Biol 2024; 119:103801. [PMID: 38310810 DOI: 10.1016/j.jtherbio.2024.103801] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 01/20/2024] [Accepted: 01/24/2024] [Indexed: 02/06/2024]
Abstract
Skeletal muscle is a highly plastic tissue. The role of heat shock protein 72 (Hsp72) in heat stress-induced skeletal muscle hypertrophy has been well demonstrated; however, the precise mechanisms remain unclear. Essential amino acids, such as leucine, mainly mediate muscle protein synthesis. We investigated the effects of pre-heating and increased Hsp72 expression on the mechanistic target of rapamycin (mTOR) signaling and protein synthesis following leucine administration in rat gastrocnemius muscle. To ensure increased Hsp72 expression in both the red and white portions of the muscle, one leg of male Wistar rats (10-week-old, n = 23) was heat-stressed in 43 °C water for 30 min twice at a 48-h-interval (heat-stressed leg, HS leg). The contralateral leg served as a non-heated internal control (CT leg). After the recovery period (48 h), rats were divided into the pre-administration or oral leucine administration groups. We harvested the gastrocnemius muscle (red and white parts) prior to administration and 30 and 90 min after leucine treatment (n = 7-8 per group) and intramuscular signaling responses to leucine ingestion were determined using western blotting. Heat stress significantly upregulated the expression of Hsp72 and was not altered by leucine administration. Although the phosphorylation levels of mTOR/S6K1 and ERK were similar regardless of heating, 4E-BP1 was less phosphorylated in the HS legs than the CT legs after leucine administration in the red portion of the muscles (P < 0.05). Moreover, c-Myc expression differed significantly after leucine administration in both the red and white portions of the muscles. Our findings indicate that following oral leucine administration, pre-heating partially blunted the muscle protein synthesis signaling response in the rat gastrocnemius muscle.
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Affiliation(s)
- Toshinori Yoshihara
- Graduate School of Health and Sports Science, Juntendo University, 1-1 Hirakagakuendai, Inzai, Chiba, 270-1695, Japan.
| | - Shohei Dobashi
- Graduate School of Health and Sports Science, Juntendo University, 1-1 Hirakagakuendai, Inzai, Chiba, 270-1695, Japan.
| | - Hisashi Naito
- Graduate School of Health and Sports Science, Juntendo University, 1-1 Hirakagakuendai, Inzai, Chiba, 270-1695, Japan.
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Kim A, Kim YR, Park SM, Lee H, Park M, Yi JM, Cha S, Kim NS. Jakyak-gamcho-tang, a decoction of Paeoniae Radix and Glycyrrhizae Radix et Rhizoma, ameliorates dexamethasone-induced muscle atrophy and muscle dysfunction. Phytomedicine 2024; 123:155057. [PMID: 37984121 DOI: 10.1016/j.phymed.2023.155057] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 05/15/2023] [Revised: 08/17/2023] [Accepted: 08/29/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Although chronic treatment with glucocorticoids, such as dexamethasone, is frequently associated with muscle atrophy, effective and safe therapeutics for treating muscle atrophy remain elusive. Jakyak-gamcho-tang (JGT), a decoction of Paeoniae Radix and Glycyrrhizae Radix et Rhizoma, has long been used to relieve muscle tension and control muscle cramp-related pain. However, the effects of JGT on glucocorticoid-induced muscle atrophy are yet to be comprehensively clarified. PURPOSE The objective of the current study was to validate the protective effect of JGT in dexamethasone-induced muscle atrophy models and elucidate its underlying mechanism through integrated in silico - in vitro - in vivo studies. STUDY DESIGN AND METHODS Differential gene expression was preliminarily analyzed using the RNA-seq data to determine the effects of JGT on C2C12 myotubes. The protective effects of JGT were further validated in dexamethasone-treated C2C12 myotubes by assessing cell viability, myotube integrity, and mitochondrial function or in C57BL/6 N male mice with dexamethasone-induced muscle atrophy by evaluating muscle mass and physical performance. Transcriptomic pathway analysis was also performed to elucidate the underlying mechanism. RESULTS Based on preliminary gene set enrichment analysis using the RNA-seq data, JGT regulated various pathways related to muscle differentiation and regeneration. Dexamethasone-treated C2C12 myotubes and muscle tissues of atrophic mice displayed substantial muscle protein degradation and muscle loss, respectively, which was efficiently alleviated by JGT treatment. Importantly, JGT-mediated protective effects were associated with observations such as preservation of mitochondrial function, upregulation of myogenic signaling pathways, including protein kinase B/mammalian target of rapamycin/forkhead box O3, inhibition of ubiquitin-mediated muscle protein breakdown, and downregulation of inflammatory and apoptotic pathways induced by dexamethasone. CONCLUSION To the best of our knowledge, this is the first report to demonstrate that JGT could be a potential pharmaceutical candidate to prevent muscle atrophy induced by chronic glucocorticoid treatment, highlighting its known effects for relieving muscle spasms and pain. Moreover, transcriptomic pathway analysis can be employed as an efficient in silico tool to predict novel pharmacological candidates and elucidate molecular mechanisms underlying the effects of herbal medications comprising diverse biologically active ingredients.
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Affiliation(s)
- Aeyung Kim
- KM Application Center, Korea Institute of Oriental Medicine, Daegu 41062, Republic of Korea
| | - Yu Ri Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Sang-Min Park
- KM Data Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea; College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Haeseung Lee
- KM Data Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea; College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Musun Park
- KM Data Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Jin-Mu Yi
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Seongwon Cha
- KM Data Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea.
| | - No Soo Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea.
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Bou T, Ding W, Ren X, Liu H, Gong W, Jia Z, Zhang X, Dugarjaviin M, Bai D. Muscle fibre transition and transcriptional changes of horse skeletal muscles during traditional Mongolian endurance training. Equine Vet J 2024; 56:178-192. [PMID: 37345447 DOI: 10.1111/evj.13968] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 04/23/2023] [Indexed: 06/23/2023]
Abstract
BACKGROUND Traditional Mongolian endurance training is an effective way to improve the athletic ability of the horse for endurance events and is widely used. This incorporates aerobic exercise and intermittent fasting and these altered physiologic conditions are associated with switches between muscle fibre types. OBJECTIVES To better understand the adaption of horse skeletal muscle to traditional Mongolian endurance training from muscle fibre characteristics and transcriptional levels and to explore possible molecular mechanisms associated with the endurance performance of horses. STUDY DESIGN Before-after study. METHODS Muscle fibre type switches and muscle transcriptome changes in six Mongolian horses were assessed during 4 weeks of training. Transcriptomic and histochemical analyses were performed. The activities of oxidative and glycolytic metabolic enzymes were analysed and we generated deep RNA-sequencing data relating to skeletal muscles. RESULTS A fast-to-slow muscle fibre transition occurred in horse skeletal muscles, with a concomitant increase of oxidative enzyme activity and decreased glycolytic enzyme activity. Numerous differentially expressed genes were involved in the control of muscle protein balance and degradation. Differential alternative splicing events were also found during training which included exon-skipping events in Ttn that were associated with muscle atrophy. Differentially expressed noncoding RNAs showed connections with muscle protein balance-related pathways and fibre type specification via the post-transcriptional regulation of miRNA. MAIN LIMITATIONS The study focuses on horse athletic ability only from the aspect of muscular adaptation. CONCLUSION Traditional Mongolian endurance training-induced muscle fibre transition and metabolic and transcriptional changes. Muscle-specific non-coding RNAs could contribute to these transcriptomic changes during training.
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Affiliation(s)
- Tugeqin Bou
- Key Laboratory of Equus Germplasm Innovation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction; Equus Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Wenqi Ding
- Key Laboratory of Equus Germplasm Innovation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction; Equus Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Xiujuan Ren
- Key Laboratory of Equus Germplasm Innovation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction; Equus Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Huiying Liu
- Key Laboratory of Equus Germplasm Innovation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction; Equus Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Wendian Gong
- Key Laboratory of Equus Germplasm Innovation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction; Equus Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Zijie Jia
- Key Laboratory of Equus Germplasm Innovation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction; Equus Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Xinzhuang Zhang
- Key Laboratory of Equus Germplasm Innovation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction; Equus Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Manglai Dugarjaviin
- Key Laboratory of Equus Germplasm Innovation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction; Equus Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Dongyi Bai
- Key Laboratory of Equus Germplasm Innovation (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Equine Genetics, Breeding and Reproduction; Equus Research Center, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
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Chen H, Chen X, Yang L, Sheng S, Yang J, Lu Y, Sun Y, Zhang X, Jiang C. TRIM54 alleviates inflammation and apoptosis by stabilizing YOD1 in rat tendon-derived stem cells. J Biol Chem 2024; 300:105510. [PMID: 38042492 PMCID: PMC10801318 DOI: 10.1016/j.jbc.2023.105510] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 10/26/2023] [Accepted: 11/17/2023] [Indexed: 12/04/2023] Open
Abstract
Tendinopathy is a disorder of musculoskeletal system that primarily affects athletes and the elderly. Current treatment options are generally comprised of various exercise and loading programs, therapeutic modalities, and surgical interventions and are limited to pain management. This study is to understand the role of TRIM54 (tripartite motif containing 54) in tendonitis through in vitro modeling with tendon-derived stem cells (TDSCs) and in vivo using rat tendon injury model. Initially, we observed that TRIM54 overexpression in TDSCs model increased stemness and decreased apoptosis. Additionally, it rescued cells from tumor necrosis factor α-induced inflammation, migration, and tenogenic differentiation. Further, through immunoprecipitation studies, we identified that TRIM54 regulates inflammation in TDSCs by binding to and ubiquitinating YOD1. Further, overexpression of TRIM54 improved the histopathological score of tendon injury as well as the failure load, stiffness, and young modulus in vivo. These results indicated that TRIM54 played a critical role in reducing the effects of tendon injury. Consequently, these results shed light on potential therapeutic alternatives for treating tendinopathy.
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Affiliation(s)
- Hua Chen
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaofeng Chen
- Department of Orthopaedic Surgery, Hainan Province Clinical Medical Center, Sanya, China; Haikou Orthopedic and Diabetes Hospital of Shanghai Sixth People's Hospital, Haikou, China
| | - Ling Yang
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Shiyang Sheng
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Jianshe Yang
- Department of Nuclear Medicine, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Yong Lu
- Department of Radiology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Department of Radiology, Ruijin Hospital Luwan Branch, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Yangbai Sun
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
| | - Xiaoping Zhang
- The Institute of Intervention Vessel, Tongji University School of Medicine, Shanghai, China
| | - Chaoyin Jiang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Orthopaedic Surgery, Hainan Province Clinical Medical Center, Sanya, China.
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Zemorshidi F, Töpf A, Claeys KG, McFarlane A, Patton A, Nafissi S, Straub V. Novel OBSCN variants associated with a risk to exercise-intolerance and rhabdomyolysis. Neuromuscul Disord 2024; 34:83-88. [PMID: 38159459 DOI: 10.1016/j.nmd.2023.10.013] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 01/03/2024]
Abstract
Obscurin, encoded by the OBSCN gene, is a muscle protein consisting of three main splice isoforms, obscurin-A, obscurin-B, and obscurin kinase-only protein (also known as KIAA1639 or Obsc-kin). Obscurin is located at the M-band and Z-disks and interacts with titin and myomesin. It plays an important role in the stability and maintenance of the A- and M-bands and the subsarcolemmal organization of the microtubule network. Furthermore, obscurin is involved in Ca2+ regulation and sarcoplasmic reticulum function and is connected to several other muscle proteins. OBSCN gene variants have been reported to be relatively common in inherited cardiomyopathies. Here we reported two young patients with a history of cramps, myalgia, exercise intolerance, rhabdomyolysis, and myoglobinuria without any evidence of concomitant cardiomyopathy in association with novel OBSCN variants (c.24822C>A and c.2653+1G>C). Obscurin-deficient muscle fibers seem to have increased susceptibility to damage triggered by exercise that may lead to rhabdomyolysis. More studies are needed to clarify the diverse clinical phenotypes and the pathophysiology of OBSCN gene variants.
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Affiliation(s)
- Fariba Zemorshidi
- Neuromuscular Research Center, Tehran University of Medical Sciences, Iran; Department of Neurology, Shariati Hospital,Tehran University of Medical Sciences, Tehran, Iran; Department of Neurology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ana Töpf
- John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Kristl G Claeys
- Department of Neurology, University Hospitals Leuven, Leuven, Belgium; Laboratory for Muscle Diseases and Neuropathies, Department of Neurosciences, KU Leuven, and Leuven Brain Institute (LBI), Leuven, Belgium
| | - Adam McFarlane
- John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Annabel Patton
- John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Shahriar Nafissi
- Neuromuscular Research Center, Tehran University of Medical Sciences, Iran; Department of Neurology, Shariati Hospital,Tehran University of Medical Sciences, Tehran, Iran.
| | - Volker Straub
- John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
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Luan X, Zhai J, Li S, Du Y. Downregulation of FHL2 suppressed trophoblast migration, invasion and epithelial-mesenchymal transition in recurrent miscarriage. Reprod Biomed Online 2024; 48:103342. [PMID: 37945432 DOI: 10.1016/j.rbmo.2023.103342] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 08/07/2023] [Accepted: 08/11/2023] [Indexed: 11/12/2023]
Abstract
RESEARCH QUESTION Is four and a half LIM domain 2 (FHL2) involved in trophoblast migration, invasion and epithelial-mesenchymal transition (EMT) in recurrent miscarriage? DESIGN Villus tissue was collected from 24 patients who had experienced recurrent miscarriage and 24 healthy controls. FHL2 mRNA and protein expression in villus specimens were observed by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. Small interfering RNA and overexpression plasmid were used to change the FHL2 expression. JAR and HTR8/SVneo cell lines were used to conduct scratch-wound assay and transwell assay to detect trophoblast migration and invasion of FHL2. Downstream molecule expression of mRNA and protein and EMT markers were verified by qRT-PCR and Western blot. RESULTS Significantly lower FHL2 mRNA (P = 0.019) and protein (P = 0.0014) expression was found in trophoblasts from the recurrent miscarriage group compared with healthy controls. FHL2 knockdown repressed migration (P = 0.0046), invasion (P < 0.001) and EMT, as shown by significant differences in mRNA and protein expression of the EMT markers N-cadherin, E-cadherin, Vimentin and Snail (all P < 0.05) of extravillus trophoblasts. FHL2 overexpression enhanced migration (P = 0.025), invasion (P < 0.001) and EMT of extravillus trophoblasts (all EMT markers P < 0.05). The positive upstream factor FHL2 in the extracellular signal-related kinase pathway induced JunD expression, thereby promoting trophoblast migration and invasion via matrix metalloproteinase 2. CONCLUSIONS FHL2 is involved in a regulatory pathway of trophoblast migration, invasion and EMT during early pregnancy, and may have a role in recurrent miscarriage pathogenesis, which can serve as a possible target for novel therapeutic development.
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Affiliation(s)
- Xiaorui Luan
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Junyu Zhai
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Shang Li
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Yanzhi Du
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China.
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