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Olie CS, O'Brien DP, Jones HB, Liang Z, Damianou A, Sur-Erdem I, Pinto-Fernández A, Raz V, Kessler BM. Deubiquitinases in muscle physiology and disorders. Biochem Soc Trans 2024; 52:1085-1098. [PMID: 38716888 PMCID: PMC11346448 DOI: 10.1042/bst20230562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 06/27/2024]
Abstract
In vivo, muscle and neuronal cells are post-mitotic, and their function is predominantly regulated by proteostasis, a multilayer molecular process that maintains a delicate balance of protein homeostasis. The ubiquitin-proteasome system (UPS) is a key regulator of proteostasis. A dysfunctional UPS is a hallmark of muscle ageing and is often impacted in neuromuscular disorders (NMDs). Malfunction of the UPS often results in aberrant protein accumulation which can lead to protein aggregation and/or mis-localization affecting its function. Deubiquitinating enzymes (DUBs) are key players in the UPS, controlling protein turnover and maintaining the free ubiquitin pool. Several mutations in DUB encoding genes are linked to human NMDs, such as ATXN3, OTUD7A, UCHL1 and USP14, whilst other NMDs are associated with dysregulation of DUB expression. USP5, USP9X and USP14 are implicated in synaptic transmission and remodeling at the neuromuscular junction. Mice lacking USP19 show increased maintenance of lean muscle mass. In this review, we highlight the involvement of DUBs in muscle physiology and NMDs, particularly in processes affecting muscle regeneration, degeneration and inflammation following muscle injury. DUBs have recently garnered much respect as promising drug targets, and their roles in muscle maturation, regeneration and degeneration may provide the framework for novel therapeutics to treat muscular disorders including NMDs, sarcopenia and cachexia.
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Affiliation(s)
- Cyriel S. Olie
- Department of Human Genetics, Leiden University Medical Centre, 2333ZC Leiden, The Netherlands
| | - Darragh P. O'Brien
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
| | - Hannah B.L. Jones
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
| | - Zhu Liang
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
- Chinese Academy for Medical Sciences Oxford Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, U.K
| | - Andreas Damianou
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
- Chinese Academy for Medical Sciences Oxford Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, U.K
| | - Ilknur Sur-Erdem
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford OX3 9DU, U.K
| | - Adán Pinto-Fernández
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
- Chinese Academy for Medical Sciences Oxford Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, U.K
| | - Vered Raz
- Department of Human Genetics, Leiden University Medical Centre, 2333ZC Leiden, The Netherlands
| | - Benedikt M. Kessler
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, U.K
- Chinese Academy for Medical Sciences Oxford Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford OX3 7FZ, U.K
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Li X, Xie F, Li R, Li L, Ren M, Jin M, Zhou J, Wang C, Li S. Integrated 4D Analysis of Intramuscular Fat Deposition: Quantitative Proteomic and Transcriptomic Studies in Wannanhua Pig Longissimus Dorsi Muscle. Animals (Basel) 2024; 14:167. [PMID: 38200898 PMCID: PMC10778203 DOI: 10.3390/ani14010167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/21/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Wannanhua (WH) is a pig breed indigenous to Anhui Province, China. This breed has a high intramuscular fat (IMF) content, making it an ideal model for investigating lipid deposition mechanisms in pigs. IMF content is one of the main indicators of meat quality in pigs and is regulated by multiple genes and metabolic pathways. Building upon our prior transcriptomic investigation, the present study focused on the longissimus dorsi muscle tissue of Wannanhua (WH) pigs in the rapid fat-deposition stages (120 and 240 days of age). Employing 4D label-free quantitative proteomic analysis, we identified 106 differentially expressed proteins (DEPs). Parallel reaction monitoring (PRM) technology was used to verify the DEPs, and the results showed that the 4D label-free results were reliable and valid. Functional enrichment and protein-protein interaction analyses showed that the DEPs were mainly involved in the skeletal-muscle-associated structural proteins, mitochondria, energy metabolism, and fatty acid metabolism. By integrating transcriptomic data, we identified seven candidate genes including ACADL, ACADM, ANKRD2, MYOZ2, TNNI1, UCHL1, and ART3 that play a regulatory role in fat deposition and muscle development. These findings establish a theoretical foundation for future analyses of lipid deposition traits, contributing to potential enhancements in pig meat quality during breeding and advancing the selection process for Chinese indigenous breeds.
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Affiliation(s)
- Xiaojin Li
- College of Animal Science, Anhui Science and Technology University, Chuzhou 239000, China; (X.L.); (F.X.); (R.L.); (L.L.); (M.R.); (M.J.)
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Chuzhou 233100, China
| | - Fei Xie
- College of Animal Science, Anhui Science and Technology University, Chuzhou 239000, China; (X.L.); (F.X.); (R.L.); (L.L.); (M.R.); (M.J.)
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Chuzhou 233100, China
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Ruidong Li
- College of Animal Science, Anhui Science and Technology University, Chuzhou 239000, China; (X.L.); (F.X.); (R.L.); (L.L.); (M.R.); (M.J.)
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Chuzhou 233100, China
| | - Lei Li
- College of Animal Science, Anhui Science and Technology University, Chuzhou 239000, China; (X.L.); (F.X.); (R.L.); (L.L.); (M.R.); (M.J.)
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Chuzhou 233100, China
| | - Man Ren
- College of Animal Science, Anhui Science and Technology University, Chuzhou 239000, China; (X.L.); (F.X.); (R.L.); (L.L.); (M.R.); (M.J.)
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Chuzhou 233100, China
| | - Mengmeng Jin
- College of Animal Science, Anhui Science and Technology University, Chuzhou 239000, China; (X.L.); (F.X.); (R.L.); (L.L.); (M.R.); (M.J.)
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Chuzhou 233100, China
| | - Ju Zhou
- Kunshan Animal Health Supervision Institute, Kunshan 215300, China;
| | - Chonglong Wang
- Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Shenghe Li
- College of Animal Science, Anhui Science and Technology University, Chuzhou 239000, China; (X.L.); (F.X.); (R.L.); (L.L.); (M.R.); (M.J.)
- Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Chuzhou 233100, China
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Peng Z, Cai J, Guo X, Xu S. Brown adipocyte activation mediates lipid metabolism through exosomal tRNA-derived fragments. Biochem Biophys Res Commun 2023; 672:128-136. [PMID: 37352601 DOI: 10.1016/j.bbrc.2023.06.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/08/2023] [Accepted: 06/11/2023] [Indexed: 06/25/2023]
Abstract
Human obesity is related with intrinsic impairments of adipocyte lipolysis and ectopic lipid accumulation. Small regulatory RNAs, such as tRNA-derived fragments (tRFs) and tRNA halves (tiRNAs), are enriched in exosomes and play a crucial role in lipid metabolism. To determine certain tRFs for lipolysis, brown adipocytes were treated with forskolin. Using tRFs sequencing, 207 different expressed exosomal tRFs were determined. In forskolin samples, 145 downregulated and 62 upregulated tRFs were identified. Further, qRT-PCR validated that three notably upregulated tRFs (tRF-Gly-GCC-007, tRF-Gly-GCC-008, and tRF-Gly-GCC-009) were in accordance with the sequencing result. Target genes of tRFs were involved in positive regulation of protein phosphorylation and cell adhesion process by significantly downregulating UCHL1 expression, which might participate in lipolysis. This study might provide therapeutic targets and potential diagnostic biomarkers for obesity treatment.
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Affiliation(s)
- Zhou Peng
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jingyang Cai
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Xirong Guo
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Siliang Xu
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China.
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