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Jiao YY, Song N, Fang XY, Lu XT, Sun N, Jin HX, Chen L, Huang XJ, Wen S, Wu ZT, Wang XP, Cheng TT, Yao GD, Song WY. YTHDF2 regulates MSS51 expression contributing to mitochondria dysfunction of granulosa cells in polycystic ovarian syndrome patients. Mol Cell Endocrinol 2024; 592:112292. [PMID: 38830447 DOI: 10.1016/j.mce.2024.112292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/07/2024] [Accepted: 05/31/2024] [Indexed: 06/05/2024]
Abstract
RESEARCH QUESTION Granulosa cells (GCs) dysfunction plays a crucial role in the pathogenesis of polycystic ovary syndrome (PCOS). It is reported that YTH domain-containing family protein 2 (YTHDF2) is upregulated in mural GCs of PCOS patients. What effect does the differential expression of YTHDF2 have in PCOS patients? DESIGN Mural GCs and cumulus GCs from 15 patients with PCOS and 15 ovulatory controls and 4 cases of pathological sections in each group were collected. Real-time PCR, Western Blot, immunohistochemistry, and immunofluorescence experiments were conducted to detect gene and protein expression. RNA immunoprecipitation assay was performed to evaluate the binding relationship between YTHDF2 and MSS51. Mitochondrial morphology, cellular ATP and ROS levels and glycolysis-related gene expression were detected after YTHDF2 overexpression or MSS51 inhibition. RESULTS In the present study, we found that YTHDF2 was upregulated in GCs of PCOS patients while MSS51 was downregulated. YTHDF2 protein can bind to MSS51 mRNA and affect MSS51 expression. The reduction of MSS51 expression or the increase in YTHDF2 expression can lead to mitochondrial damage, reduced ATP levels, increased ROS levels and reduced expression of LDHA, PFKP and PKM. CONCLUSIONS YTHDF2 may regulate the expression of MSS51, affecting the structure and function of mitochondria in GCs and interfering with cellular glycolysis, which may disturb the normal biological processes of GCs and follicle development in PCOS patients.
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Affiliation(s)
- Yun-Yun Jiao
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Ning Song
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Xing-Yu Fang
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Xiao-Tong Lu
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Ning Sun
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Hai-Xia Jin
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Lei Chen
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Xian-Ju Huang
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Shuang Wen
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Zhao-Ting Wu
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Xiao-Peng Wang
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Ting-Ting Cheng
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Gui-Dong Yao
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Wen-Yan Song
- Reproductive Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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Chen S, He T, Chen J, Wen D, Wang C, Huang W, Yang Z, Yang M, Li M, Huang S, Huang Z, Zhu H. Betaine delays age-related muscle loss by mitigating Mss51-induced impairment in mitochondrial respiration via Yin Yang1. J Cachexia Sarcopenia Muscle 2024. [PMID: 39187977 DOI: 10.1002/jcsm.13558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 05/18/2024] [Accepted: 07/05/2024] [Indexed: 08/28/2024] Open
Abstract
BACKGROUND Mitochondrial dysfunction is one of the hallmarks of aging and a leading contributor to sarcopenia. Nutrients are essential for improving mitochondrial function and skeletal muscle health during the aging process. Betaine is a nutrient with potential muscle-preserving properties. However, whether and how betaine could regulate the mitochondria function in aging muscle are poorly understood. We aimed to explore the molecular target and underlying mechanism of betaine in attenuating the age-related mitochondrial dysfunction in skeletal muscle. METHODS Young mice (YOU, 2 months), old mice (OLD, 15 months), and old mice with betaine treatment (BET, 15 months) were fed for 12 weeks. The effects of betaine on muscle mass, strength, function, and subcellular structure of muscle fibres were assessed. RNA sequencing (RNA-seq) was conducted to identify the molecular target of betaine. The impacts of betaine on mitochondrial-related molecules, superoxide accumulation, and oxidative respiration were examined using western blotting (WB), immunofluorescence (IF) and seahorse assay. The underlying mechanism of betaine regulation on the molecular target to maintain mitochondrial function was investigated by luciferase reporter assay, chromatin immunoprecipitation and electrophoretic mobility shift assay. Adenoassociated virus transfection, succinate dehydrogenase staining (SDH), and energy expenditure assessment were performed on 20-month-old mice for validating the mechanism in vivo. RESULTS Betaine intervention demonstrated anti-aging effects on the muscle mass (P = 0.017), strength (P = 0.010), and running distance (P = 0.013). Mitochondrial-related markers (ATP5a, Sdha, and Uqcrc2) were 1.1- to 1.5-fold higher in BET than OLD (all P ≤ 0.036) with less wasted mitochondrial vacuoles accumulating in sarcomere. Bioinformatic analysis from RNA-seq displayed pathways related to mitochondrial respiration activity was higher enriched in BET group (NES = -0.87, FDR = 0.10). The quantitative real time PCR (qRT-PCR) revealed betaine significantly reduced the expression of a novel mitochondrial regulator, Mss51 (-24.9%, P = 0.002). In C2C12 cells, betaine restored the Mss51-mediated suppression in mitochondrial respiration proteins (all P ≤ 0.041), attenuated oxygen consumption impairment, and superoxide accumulation (by 20.7%, P = 0.001). Mechanically, betaine attenuated aging-induced repression in Yy1 mRNA expression (BET vs. OLD: 2.06 vs. 1.02, P = 0.009). Yy1 transcriptionally suppressed Mss51 mRNA expression both in vitro and in vivo. This contributed to the preservation of mitochondrial respiration, improvement for energy expenditure (P = 0.008), and delay of muscle loss during aging process. CONCLUSIONS Altogether, betaine transcriptionally represses Mss51 via Yy1, improving age-related mitochondrial respiration in skeletal muscle. These findings suggest betaine holds promise as a dietary supplement to delay skeletal muscle degeneration and improve age-related mitochondrial diseases.
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Affiliation(s)
- Si Chen
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Tongtong He
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Jiedong Chen
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Dongsheng Wen
- Department of Hepatobiliary Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Chen Wang
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Wenge Huang
- Center of Experimental Animals, Sun Yat-sen University, Guangzhou, China
| | - Zhijun Yang
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Mengtao Yang
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Mengchu Li
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Siyu Huang
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Zihui Huang
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
| | - Huilian Zhu
- Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
- School of Public Health, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Sun Yat-sen University, Guangzhou, China
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Orioli L, Canouil M, Sawadogo K, Ning L, Deldicque L, Lause P, de Barsy M, Froguel P, Loumaye A, Deswysen Y, Navez B, Bonnefond A, Thissen JP. Identification of myokines susceptible to improve glucose homeostasis after bariatric surgery. Eur J Endocrinol 2023; 189:409-421. [PMID: 37638789 DOI: 10.1093/ejendo/lvad122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 07/20/2023] [Accepted: 08/03/2023] [Indexed: 08/29/2023]
Abstract
IMPORTANCE AND OBJECTIVE The identification of myokines susceptible to improve glucose homeostasis following bariatric surgery could lead to new therapeutic approaches for type 2 diabetes. METHODS Changes in the homeostasis model assessment (HOMA) test were assessed in patients before and 3 months after bariatric surgery. Changes in myokines expression and circulating levels were assessed using real-time quantitative polymerase chain reaction (RT-qPCR) and enzyme-linked immunosorbent assay (ELISA). Myokines known to regulate glucose homeostasis were identified using literature (targeted study) and putative myokines using RNA-sequencing (untargeted study). A linear regression analysis adjusted for age and sex was used to search for associations between changes in the HOMA test and changes in myokines. RESULTS In the targeted study, brain-derived neurotrophic factor (BDNF) expression was upregulated (+30%, P = .006) while BDNF circulating levels were decreased (-12%, P = .001). Upregulated BDNF expression was associated with decreased HOMA of insulin resistance (HOMA-IR) (adjusted estimate [95% confidence interval {CI}]: -0.51 [-0.88 to -0.13], P = .010). Decreased BDNF serum levels were associated with decreased HOMA of beta-cell function (HOMA-B) (adjusted estimate [95% CI] = 0.002 [0.00002-0.0031], P = .046). In the untargeted study, upregulated putative myokines included XYLT1 (+64%, P < .001), LGR5 (+57, P< .001), and SPINK5 (+46%, P < .001). Upregulated LGR5 was associated with decreased HOMA-IR (adjusted estimate [95% CI] = -0.50 [-0.86 to -0.13], P = .009). Upregulated XYLT1 and SPINK5 were associated with increased HOMA of insulin sensitivity (HOMA-S) (respectively, adjusted estimate [95% CI] = 109.1 [28.5-189.8], P = .009 and 16.5 [0.87-32.19], P = .039). CONCLUSIONS Improved glucose homeostasis following bariatric surgery is associated with changes in myokines expression and circulating levels. In particular, upregulation of BDNF, XYLT1, SPINK5, and LGR5 is associated with improved insulin sensitivity. These results suggest that these myokines could contribute to improved glucose homeostasis following bariatric surgery. STUDY REGISTRATION NCT03341793 on ClinicalTrials.gov (https://clinicaltrials.gov/).
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Affiliation(s)
- Laura Orioli
- Endocrinology, Diabetes, and Nutrition, Institute of Experimental and Clinical Research, Université Catholique de Louvain, 1200 Brussels, Belgium
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Mickaël Canouil
- Inserm U1283, CNRS UMR 8199, European Genomic Institute for Diabetes, Institut Pasteur de Lille, 59000 Lille, France
- University of Lille, Lille University Hospital, 59000 Lille, France
| | - Kiswendsida Sawadogo
- Statistical Support Unit, King Albert II Cancer and Hematology Institute, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Lijiao Ning
- Inserm U1283, CNRS UMR 8199, European Genomic Institute for Diabetes, Institut Pasteur de Lille, 59000 Lille, France
- University of Lille, Lille University Hospital, 59000 Lille, France
| | - Louise Deldicque
- Institute of NeuroScience, Université Catholique de Louvain, 1348 Louvain-La-Neuve, Belgium
| | - Pascale Lause
- Endocrinology, Diabetes, and Nutrition, Institute of Experimental and Clinical Research, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Marie de Barsy
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Philippe Froguel
- Inserm U1283, CNRS UMR 8199, European Genomic Institute for Diabetes, Institut Pasteur de Lille, 59000 Lille, France
- University of Lille, Lille University Hospital, 59000 Lille, France
- Department of Metabolism, Digestion, and Reproduction, Imperial College London, London SW7 2BX, United Kingdom
| | - Audrey Loumaye
- Endocrinology, Diabetes, and Nutrition, Institute of Experimental and Clinical Research, Université Catholique de Louvain, 1200 Brussels, Belgium
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Yannick Deswysen
- Department of Oeso-gastro-duodenal and Bariatric Surgery, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Benoit Navez
- Department of Oeso-gastro-duodenal and Bariatric Surgery, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Amélie Bonnefond
- Inserm U1283, CNRS UMR 8199, European Genomic Institute for Diabetes, Institut Pasteur de Lille, 59000 Lille, France
- University of Lille, Lille University Hospital, 59000 Lille, France
| | - Jean-Paul Thissen
- Endocrinology, Diabetes, and Nutrition, Institute of Experimental and Clinical Research, Université Catholique de Louvain, 1200 Brussels, Belgium
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
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Mousa MG, Vuppaladhadiam L, Kelly MO, Pietka T, Ek S, Shen KC, Meyer GA, Finck BN, Brookheart RT. Site-1 protease inhibits mitochondrial respiration by controlling the TGF-β target gene Mss51. Cell Rep 2023; 42:112336. [PMID: 37002920 PMCID: PMC10544680 DOI: 10.1016/j.celrep.2023.112336] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 02/17/2023] [Accepted: 03/20/2023] [Indexed: 04/03/2023] Open
Abstract
The mitochondrial response to changes in cellular energy demand is necessary for cellular adaptation and organ function. Many genes are essential in orchestrating this response, including the transforming growth factor (TGF)-β1 target gene Mss51, an inhibitor of skeletal muscle mitochondrial respiration. Although Mss51 is implicated in the pathophysiology of obesity and musculoskeletal disease, how Mss51 is regulated is not entirely understood. Site-1 protease (S1P) is a key activator of several transcription factors required for cellular adaptation. However, the role of S1P in muscle is unknown. Here, we identify S1P as a negative regulator of muscle mass and mitochondrial respiration. S1P disruption in mouse skeletal muscle reduces Mss51 expression and increases muscle mass and mitochondrial respiration. The effects of S1P deficiency on mitochondrial activity are counteracted by overexpressing Mss51, suggesting that one way S1P inhibits respiration is by regulating Mss51. These discoveries expand our understanding of TGF-β signaling and S1P function.
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Affiliation(s)
- Muhammad G Mousa
- John T. Milliken Department of Medicine, Division of Geriatrics and Nutritional Sciences, Washington University School of Medicine, St. Louis, MO 61110, USA
| | - Lahari Vuppaladhadiam
- John T. Milliken Department of Medicine, Division of Geriatrics and Nutritional Sciences, Washington University School of Medicine, St. Louis, MO 61110, USA
| | - Meredith O Kelly
- John T. Milliken Department of Medicine, Division of Geriatrics and Nutritional Sciences, Washington University School of Medicine, St. Louis, MO 61110, USA
| | - Terri Pietka
- John T. Milliken Department of Medicine, Division of Geriatrics and Nutritional Sciences, Washington University School of Medicine, St. Louis, MO 61110, USA
| | - Shelby Ek
- John T. Milliken Department of Medicine, Division of Geriatrics and Nutritional Sciences, Washington University School of Medicine, St. Louis, MO 61110, USA
| | - Karen C Shen
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Gretchen A Meyer
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO 63110, USA; Departments of Orthopaedic Surgery and Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University, St. Louis, MO 63130, USA
| | - Brian N Finck
- John T. Milliken Department of Medicine, Division of Geriatrics and Nutritional Sciences, Washington University School of Medicine, St. Louis, MO 61110, USA
| | - Rita T Brookheart
- John T. Milliken Department of Medicine, Division of Geriatrics and Nutritional Sciences, Washington University School of Medicine, St. Louis, MO 61110, USA.
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Zequan X, Yonggang S, Heng X, Yaodong W, Xin M, Dan L, Li Z, Tingting D, Zirong W. Transcriptome-based analysis of early post-mortem formation of pale, soft, and exudative (PSE) pork. Meat Sci 2022; 194:108962. [PMID: 36126390 DOI: 10.1016/j.meatsci.2022.108962] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 07/02/2022] [Accepted: 08/26/2022] [Indexed: 10/14/2022]
Abstract
Pale, soft, and exudative (PSE) meat can cause consumer dissatisfaction and economic losses. This study determined meat quality, glycolytic enzyme activity, and differential gene expression in the longissimus lumborum (LL) and semimembranosus (SM) of normal and PSE pork carcasses. The SM did not result in PSE meat. Hexokinase, lactate dehydrogenase, and pyruvate kinase activities were lower in the SM of PSE carcasses than in the normal carcasses. Functional enrichment analysis revealed that immune, inflammatory, and muscle fibre genes were significantly enriched in PSE pork. More specifically, PPP1R3G and MSS51 may be key genes regulating pork quality in the SM. Meanwhile, the differential expression of PLVAB, ADIPOQ, LEP, MYH4, MYH7, MYL3, MYL6B, FOS, ATF3, and HSPA6 may induce PSE formation in the LL. These results may provide insights into PSE pork formation mechanisms and reveal candidate genes for improving meat quality after validation.
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Affiliation(s)
- Xu Zequan
- College of Food Science and Pharmaceutics, Xinjiang Agricultural University, Urumqi, Xinjiang, China; Tecon Biology Ltd., Urumqi, Xinjiang, China
| | - Shao Yonggang
- College of Animal Science, Xinjiang Agricultural University, Xinjiang, China
| | - Xu Heng
- Tecon Biology Ltd., Urumqi, Xinjiang, China
| | | | - Ma Xin
- College of Food Science and Pharmaceutics, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Liu Dan
- College of Food Science and Pharmaceutics, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Zhang Li
- College of Food Science and Pharmaceutics, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Du Tingting
- College of Food Science and Pharmaceutics, Xinjiang Agricultural University, Urumqi, Xinjiang, China
| | - Wang Zirong
- College of Food Science and Pharmaceutics, Xinjiang Agricultural University, Urumqi, Xinjiang, China.
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Inhibition of the immunoproteasome modulates innate immunity to ameliorate muscle pathology of dysferlin-deficient BlAJ mice. Cell Death Dis 2022; 13:975. [PMID: 36402750 PMCID: PMC9675822 DOI: 10.1038/s41419-022-05416-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 11/21/2022]
Abstract
Muscle repair in dysferlinopathies is defective. Although macrophage (Mø)-rich infiltrates are prominent in damaged skeletal muscles of patients with dysferlinopathy, the contribution of the immune system to the disease pathology remains to be fully explored. Numbers of both pro-inflammatory M1 Mø and effector T cells are increased in muscle of dysferlin-deficient BlAJ mice. In addition, symptomatic BlAJ mice have increased muscle production of immunoproteasome. In vitro analyses using bone marrow-derived Mø of BlAJ mice show that immunoproteasome inhibition results in C3aR1 and C5aR1 downregulation and upregulation of M2-associated signaling. Administration of immunoproteasome inhibitor ONX-0914 to BlAJ mice rescues muscle function by reducing muscle infiltrates and fibro-adipogenesis. These findings reveal an important role of immunoproteasome in the progression of muscular dystrophy in BlAJ mouse and suggest that inhibition of immunoproteasome may produce therapeutic benefit in dysferlinopathy.
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Soto I, Couvillion M, Hansen KG, McShane E, Moran JC, Barrientos A, Churchman LS. Balanced mitochondrial and cytosolic translatomes underlie the biogenesis of human respiratory complexes. Genome Biol 2022; 23:170. [PMID: 35945592 PMCID: PMC9361522 DOI: 10.1186/s13059-022-02732-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 07/18/2022] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Oxidative phosphorylation (OXPHOS) complexes consist of nuclear and mitochondrial DNA-encoded subunits. Their biogenesis requires cross-compartment gene regulation to mitigate the accumulation of disproportionate subunits. To determine how human cells coordinate mitochondrial and nuclear gene expression processes, we tailored ribosome profiling for the unique features of the human mitoribosome. RESULTS We resolve features of mitochondrial translation initiation and identify a small ORF in the 3' UTR of MT-ND5. Analysis of ribosome footprints in five cell types reveals that average mitochondrial synthesis levels correspond precisely to cytosolic levels across OXPHOS complexes, and these average rates reflect the relative abundances of the complexes. Balanced mitochondrial and cytosolic synthesis does not rely on rapid feedback between the two translation systems, and imbalance caused by mitochondrial translation deficiency is associated with the induction of proteotoxicity pathways. CONCLUSIONS Based on our findings, we propose that human OXPHOS complexes are synthesized proportionally to each other, with mitonuclear balance relying on the regulation of OXPHOS subunit translation across cellular compartments, which may represent a proteostasis vulnerability.
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Affiliation(s)
- Iliana Soto
- Blavatnik Institute, Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
| | - Mary Couvillion
- Blavatnik Institute, Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
| | - Katja G Hansen
- Blavatnik Institute, Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
| | - Erik McShane
- Blavatnik Institute, Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
| | - J Conor Moran
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Antoni Barrientos
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - L Stirling Churchman
- Blavatnik Institute, Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
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Ruvinskiy D, Igoshin A, Yurchenko A, Ilina AV, Larkin DM. Resequencing the Yaroslavl cattle genomes reveals signatures of selection and a rare haplotype on BTA28 likely to be related to breed phenotypes. Anim Genet 2022; 53:680-684. [PMID: 35711120 PMCID: PMC9541747 DOI: 10.1111/age.13230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 03/12/2022] [Accepted: 06/04/2022] [Indexed: 11/29/2022]
Abstract
The genomes of local livestock could shed light on their genetic history, mechanisms of adaptations to environments and unique genetics. Herein we look into the genetics and adaptations of the Russian native dairy Yaroslavl cattle breed using 22 resequenced individuals and comparing them with two related breeds (Russian Kholmogory and Holstein), and to the taurine set of the 1000 Bull Genomes Project (Run 9). HapFLK analysis with Kholmogory and Holstein breeds (using Yakut cattle as outgroup) resulted in 22 regions under selection (q‐value < 0.01) on 11 chromosomes assigned to Yaroslavl cattle, including a strong signature of selection in the region of the KIT gene on BTA6. The FST (fixation index) with the 1000 Bull Genomes Dataset showed 48 non‐overlapping top (0.1%) FST regions of which three overlapped HapFLK regions. We identified 1982 highly differentiated (FST > 0.40) missense mutations in the Yaroslavl genomes. These genes were enriched in the epidermal growth factor and calcium‐binding functional categories. The top FST intervals contained eight genes with allele frequencies quite different between the Yaroslavl and Kholmogory breeds and the rest of the 1000 Bull Genomes Dataset, including KAT6B, which had a nearly Yaroslavl breed‐specific deleterious missense mutation with the highest FST in our dataset (0.99). This gene is a part of a long haplotype containing other genes from FST and hapFLK analyses and with a negative association with weight and carcass traits according to the genotyping of 30 phenotyped Yaroslavl cattle individuals. Our work provides the industry with candidate genetic variants to be focused on in breed improvement efforts.
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Affiliation(s)
- Daniil Ruvinskiy
- The Federal Research Center Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences (ICG SB RAS), Novosibirsk, Russia.,Kurchatov Genomics Center, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexander Igoshin
- The Federal Research Center Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences (ICG SB RAS), Novosibirsk, Russia
| | - Andrey Yurchenko
- The Federal Research Center Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences (ICG SB RAS), Novosibirsk, Russia
| | - Anna V Ilina
- Federal Williams Research Center of Forage Production & Agroecology, Scientific Research Institute of Livestock Breeding and Forage Production, Yaroslavl Region, Russia
| | - Denis M Larkin
- The Federal Research Center Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences (ICG SB RAS), Novosibirsk, Russia.,Kurchatov Genomics Center, Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Royal Veterinary College, University of London, London, UK
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9
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Baleva MV, Piunova UE, Chicherin IV, Krasavina DG, Levitskii SA, Kamenski PA. Yeast Translational Activator Mss51p and Human ZMYND17 - Two Proteins with a Common Origin, but Different Functions. BIOCHEMISTRY. BIOKHIMIIA 2021; 86:1151-1161. [PMID: 34565318 DOI: 10.1134/s0006297921090108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/19/2021] [Accepted: 07/19/2021] [Indexed: 11/23/2022]
Abstract
Despite its similarity to protein biosynthesis in bacteria, translation in the mitochondria of modern eukaryotes has several unique features, such as the necessity for coordination of translation of mitochondrial mRNAs encoding proteins of the electron transport chain complexes with translation of other protein components of these complexes in the cytosol. In the mitochondria of baker's yeast Saccharomyces cerevisiae, this coordination is carried out by a system of translational activators that predominantly interact with the 5'-untranslated regions of mitochondrial mRNAs. No such system has been found in human mitochondria, except a single identified translational activator, TACO1. Here, we studied the role of the ZMYND17 gene, an ortholog of the yeast gene for the translational activator Mss51p, on the mitochondrial translation in human cells. Deletion of the ZMYND17 gene did not affect translation in the mitochondria, but led to the decrease in the cytochrome c oxidase activity and increase in the amount of free F1 subunit of ATP synthase. We also investigated the evolutionary history of Mss51p and ZMYND17 and suggested a possible mechanism for the divergence of functions of these orthologous proteins.
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Affiliation(s)
- Maria V Baleva
- Department of Molecular Biology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Uliyana E Piunova
- Department of Molecular Biology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Ivan V Chicherin
- Department of Molecular Biology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Darya G Krasavina
- Department of Molecular Biology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Sergey A Levitskii
- Department of Molecular Biology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia.
| | - Piotr A Kamenski
- Department of Molecular Biology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia
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10
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Metabolism: Evolution of dolphin sperm endurance. Curr Biol 2021; 31:R1006-R1008. [PMID: 34428409 DOI: 10.1016/j.cub.2021.06.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Mammalian sperm have long been known to use energy derived from the metabolism of sugars and fatty acids. A new study shows that sperm of dolphins and their relatives lost functionality of the glycolysis pathway and are fueled only by energy-rich fatty acids that are metabolized by extra-large mitochondria, giving them exceptional endurance.
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11
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Moffatt P, Boraschi-Diaz I, Bardai G, Rauch F. Muscle transcriptome in mouse models of osteogenesis imperfecta. Bone 2021; 148:115940. [PMID: 33812081 DOI: 10.1016/j.bone.2021.115940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/24/2021] [Accepted: 03/26/2021] [Indexed: 12/11/2022]
Abstract
Osteogenesis imperfecta (OI) is a heritable connective tissue disorder that is most often caused by mutations in collagen type I encoding genes. Even though bone fragility is the most conspicuous finding in OI, the muscle system is also affected. In the present study we explored the muscle phenotype related to collagen type I mutations on the transcriptome level. RNA sequencing was performed in gastrocnemius muscles of homozygous oim mice and of heterozygous Jrt mice, two models of severe OI. We found that oim and Jrt mice shared 27 differentially expressed genes, of which 11 were concordantly upregulated and 15 concordantly downregulated. Gene Set Enrichment Analysis revealed that in both oim and Jrt mice, genes involved in 'metabolism of lipids' were significantly enriched among upregulated genes. In addition, several genes coding for extracellular matrix components were upregulated in both oim and Jrt mice. Among downregulated genes, genes involved in 'muscle contraction' were enriched in both OI mouse models. These 'muscle contraction' genes coded for slow-twitch type I muscle fiber components. Another shared downregulated gene was Mss51, a metabolic stress-inducible factor that is found in mitochondria. These data show that two mouse models of severe OI share abnormalities in the expression of genes that code for extracellular matrix proteins, lipid and energy metabolism and structural proteins of type I muscle fibers. The muscle disturbances resulting from the collagen type I mutations in these mouse models could be viewed as a mild form of muscle dystrophy.
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Affiliation(s)
- Pierre Moffatt
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada; Department of Human Genetics, McGill University, Montreal, Quebec, Canada
| | - Iris Boraschi-Diaz
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada; Department of Pediatrics, McGill University, Montreal, Quebec, Canada
| | - Ghalib Bardai
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada
| | - Frank Rauch
- Shriners Hospital for Children-Canada, Montreal, Quebec, Canada; Department of Pediatrics, McGill University, Montreal, Quebec, Canada.
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12
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Rovira Gonzalez YI, Moyer AL, LeTexier NJ, Bratti AD, Feng S, Peña V, Sun C, Pulcastro H, Liu T, Iyer SR, Lovering RM, O'Rourke B, Wagner KR. Mss51 deletion increases endurance and ameliorates histopathology in the mdx mouse model of Duchenne muscular dystrophy. FASEB J 2021; 35:e21276. [PMID: 33423297 DOI: 10.1096/fj.202002106rr] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/25/2020] [Accepted: 11/30/2020] [Indexed: 11/11/2022]
Abstract
Mitochondrial derangement is an important contributor to the pathophysiology of muscular dystrophies and may be among the earliest cellular deficits. We have previously shown that disruption of Mss51, a mammalian skeletal muscle protein that localizes to the mitochondria, results in enhanced muscle oxygen consumption rate, increased endurance capacity, and improved limb muscle strength in mice with wildtype background. Here, we investigate whether Mss51 deletion in the mdx murine model of Duchenne muscular dystrophy (mdx-Mss51 KO) counteracts the muscle pathology and mitochondrial irregularities observed in mdx mice. We found that mdx-Mss51 KO mice had increased myofiber oxygen consumption rates and an amelioration of muscle histopathology compared to mdx counterparts. This corresponded with greater treadmill endurance and less percent fatigue in muscle physiology, but no improvement in forelimb grip strength or limb muscle force production. These findings suggest that although Mss51 deletion ameliorates the skeletal muscle mitochondrial respiration defects in mdx and improves fatigue resistance in vivo, the lack of improvement in force production suggests that this target alone may be insufficient for a therapeutic effect.
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Affiliation(s)
- Yazmin I Rovira Gonzalez
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA.,Cellular and Molecular Medicine Graduate Program, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Adam L Moyer
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA.,Cellular and Molecular Medicine Graduate Program, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Nicolas J LeTexier
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA
| | - August D Bratti
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA
| | - Siyuan Feng
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA
| | - Vanessa Peña
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA
| | - Congshan Sun
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA.,Departments of Neurology and Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Hannah Pulcastro
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA
| | - Ting Liu
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shama R Iyer
- Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Richard M Lovering
- Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Brian O'Rourke
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kathryn R Wagner
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, MD, USA.,Departments of Neurology and Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA
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13
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Current and Future Therapeutic Strategies for Limb Girdle Muscular Dystrophy Type R1: Clinical and Experimental Approaches. PATHOPHYSIOLOGY 2021; 28:238-249. [PMID: 35366260 PMCID: PMC8830477 DOI: 10.3390/pathophysiology28020016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/15/2021] [Accepted: 05/17/2021] [Indexed: 11/16/2022] Open
Abstract
Limb girdle muscular dystrophy type R1 disease is a progressive disease that is caused by mutations in the CAPN3 gene and involves the extremity muscles of the hip and shoulder girdle. The CAPN3 protein has proteolytic and non-proteolytic properties. The functions of the CAPN3 protein that have been determined so far can be listed as remodeling and combining contractile proteins in the sarcomere with the substrates with which it interacts, controlling the Ca2+ flow in and out through the sarcoplasmic reticulum, and regulation of membrane repair and muscle regeneration. Even though there are several gene therapies, cellular therapies, and drug therapies, such as glucocorticoid treatment, AAV- mediated therapy, CRISPR-Cas9, induced pluripotent stem cells, MYO-029, and AMBMP, which are either in preclinical or clinical phases, or have been completed, there is no final cure. Inhibitors and small molecules (tauroursodeoxycholic acid, salubrinal, rapamycin, CDN1163, dwarf open reading frame) targeting ER stress factors that are thought to be effective in muscle loss can be considered potential therapy strategies. At present, little can be done to treat the progressive muscle wasting, loss of function, and premature mortality of patients with LGMDR1, and there is a pressing need for more research to develop potential therapies.
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14
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Abstract
Age-associated changes in gene expression in skeletal muscle of healthy individuals reflect accumulation of damage and compensatory adaptations to preserve tissue integrity. To characterize these changes, RNA was extracted and sequenced from muscle biopsies collected from 53 healthy individuals (22-83 years old) of the GESTALT study of the National Institute on Aging-NIH. Expression levels of 57,205 protein-coding and non-coding RNAs were studied as a function of aging by linear and negative binomial regression models. From both models, 1134 RNAs changed significantly with age. The most differentially abundant mRNAs encoded proteins implicated in several age-related processes, including cellular senescence, insulin signaling, and myogenesis. Specific mRNA isoforms that changed significantly with age in skeletal muscle were enriched for proteins involved in oxidative phosphorylation and adipogenesis. Our study establishes a detailed framework of the global transcriptome and mRNA isoforms that govern muscle damage and homeostasis with age.
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15
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Rybalka E, Timpani CA, Debruin DA, Bagaric RM, Campelj DG, Hayes A. The Failed Clinical Story of Myostatin Inhibitors against Duchenne Muscular Dystrophy: Exploring the Biology behind the Battle. Cells 2020; 9:E2657. [PMID: 33322031 PMCID: PMC7764137 DOI: 10.3390/cells9122657] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 12/18/2022] Open
Abstract
Myostatin inhibition therapy has held much promise for the treatment of muscle wasting disorders. This is particularly true for the fatal myopathy, Duchenne Muscular Dystrophy (DMD). Following on from promising pre-clinical data in dystrophin-deficient mice and dogs, several clinical trials were initiated in DMD patients using different modality myostatin inhibition therapies. All failed to show modification of disease course as dictated by the primary and secondary outcome measures selected: the myostatin inhibition story, thus far, is a failed clinical story. These trials have recently been extensively reviewed and reasons why pre-clinical data collected in animal models have failed to translate into clinical benefit to patients have been purported. However, the biological mechanisms underlying translational failure need to be examined to ensure future myostatin inhibitor development endeavors do not meet with the same fate. Here, we explore the biology which could explain the failed translation of myostatin inhibitors in the treatment of DMD.
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Affiliation(s)
- Emma Rybalka
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria 8001, Australia; (D.A.D.); (R.M.B.); (D.G.C.); (A.H.)
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St Albans, Victoria 3021, Australia
| | - Cara A. Timpani
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria 8001, Australia; (D.A.D.); (R.M.B.); (D.G.C.); (A.H.)
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St Albans, Victoria 3021, Australia
| | - Danielle A. Debruin
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria 8001, Australia; (D.A.D.); (R.M.B.); (D.G.C.); (A.H.)
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St Albans, Victoria 3021, Australia
| | - Ryan M. Bagaric
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria 8001, Australia; (D.A.D.); (R.M.B.); (D.G.C.); (A.H.)
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St Albans, Victoria 3021, Australia
| | - Dean G. Campelj
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria 8001, Australia; (D.A.D.); (R.M.B.); (D.G.C.); (A.H.)
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St Albans, Victoria 3021, Australia
| | - Alan Hayes
- Institute for Health and Sport (IHeS), Victoria University, Melbourne, Victoria 8001, Australia; (D.A.D.); (R.M.B.); (D.G.C.); (A.H.)
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St Albans, Victoria 3021, Australia
- Department of Medicine—Western Health, Melbourne Medical School, The University of Melbourne, Melbourne, 3021 Victoria, Australia
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16
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Hathazi D, Griffin H, Jennings MJ, Giunta M, Powell C, Pearce SF, Munro B, Wei W, Boczonadi V, Poulton J, Pyle A, Calabrese C, Gomez‐Duran A, Schara U, Pitceathly RDS, Hanna MG, Joost K, Cotta A, Paim JF, Navarro MM, Duff J, Mattman A, Chapman K, Servidei S, Della Marina A, Uusimaa J, Roos A, Mootha V, Hirano M, Tulinius M, Giri M, Hoffmann EP, Lochmüller H, DiMauro S, Minczuk M, Chinnery PF, Müller JS, Horvath R. Metabolic shift underlies recovery in reversible infantile respiratory chain deficiency. EMBO J 2020; 39:e105364. [PMID: 33128823 PMCID: PMC7705457 DOI: 10.15252/embj.2020105364] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 08/31/2020] [Accepted: 09/09/2020] [Indexed: 12/23/2022] Open
Abstract
Reversible infantile respiratory chain deficiency (RIRCD) is a rare mitochondrial myopathy leading to severe metabolic disturbances in infants, which recover spontaneously after 6-months of age. RIRCD is associated with the homoplasmic m.14674T>C mitochondrial DNA mutation; however, only ~ 1/100 carriers develop the disease. We studied 27 affected and 15 unaffected individuals from 19 families and found additional heterozygous mutations in nuclear genes interacting with mt-tRNAGlu including EARS2 and TRMU in the majority of affected individuals, but not in healthy carriers of m.14674T>C, supporting a digenic inheritance. Our transcriptomic and proteomic analysis of patient muscle suggests a stepwise mechanism where first, the integrated stress response associated with increased FGF21 and GDF15 expression enhances the metabolism modulated by serine biosynthesis, one carbon metabolism, TCA lipid oxidation and amino acid availability, while in the second step mTOR activation leads to increased mitochondrial biogenesis. Our data suggest that the spontaneous recovery in infants with digenic mutations may be modulated by the above described changes. Similar mechanisms may explain the variable penetrance and tissue specificity of other mtDNA mutations and highlight the potential role of amino acids in improving mitochondrial disease.
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17
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Yoshioka K, Fujita R, Seko D, Suematsu T, Miura S, Ono Y. Distinct Roles of Zmynd17 and PGC1α in Mitochondrial Quality Control and Biogenesis in Skeletal Muscle. Front Cell Dev Biol 2019; 7:330. [PMID: 31921843 PMCID: PMC6915033 DOI: 10.3389/fcell.2019.00330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 11/27/2019] [Indexed: 11/24/2022] Open
Abstract
Maintaining skeletal muscle mitochondrial quality is important not only for muscle activity but also for systemic metabolism. Exercise has long been recognized to have a positive impact on muscle mitochondrial quality. Although exercise triggers various changes in the mitochondrial dynamics, its molecular basis remains to be elucidated. We have previously reported that inactivation of the muscle-specific protein, zinc finger MYND domain-containing protein 17 (Zmynd17), results in mitochondrial abnormalities. To investigate the link between Zmynd17 activity and exercise-induced mitochondrial maintenance, we observed the effect of consecutive exercise on the mitochondrial quality in Zmynd17-deficient muscles. Zmynd17-deficient mice displayed abnormal mitochondrial morphology in limb muscles, which remarkably improved upon voluntary exercise. Interestingly, morphological abnormalities in mitochondria were even more apparent when PGC1α, a regulator of exercise-induced mitochondrial biogenesis, was overexpressed in Zmynd17-KO limb muscle. These abnormalities were also ameliorated by voluntary exercise. Our results show that neither the effect of consecutive exercise on mitochondrial quality nor PGC1α-induced mitochondrial biogenesis are mediated through Zmynd17 activity, thereby suggesting the existence of a complex mechanism of mitochondrial quality control in muscles.
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Affiliation(s)
- Kiyoshi Yoshioka
- Department of Muscle Development and Regeneration, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan.,Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Ryo Fujita
- Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan.,Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Daiki Seko
- Department of Muscle Development and Regeneration, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan.,Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Takashi Suematsu
- Division of Biological Macromolecular Research Support, Nagasaki University School of Medicine, Nagasaki, Japan
| | - Shinji Miura
- Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - Yusuke Ono
- Department of Muscle Development and Regeneration, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan.,Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Center for Metabolic Regulation of Healthy Aging, Kumamoto University Faculty of Life Sciences, Kumamoto, Japan
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18
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Rovira Gonzalez YI, Moyer AL, LeTexier NJ, Bratti AD, Feng S, Sun C, Liu T, Mula J, Jha P, Iyer SR, Lovering R, O’Rourke B, Noh HL, Suk S, Kim JK, Essien Umanah GK, Wagner KR. Mss51 deletion enhances muscle metabolism and glucose homeostasis in mice. JCI Insight 2019; 4:122247. [PMID: 31527314 PMCID: PMC6824300 DOI: 10.1172/jci.insight.122247] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 09/11/2019] [Indexed: 12/16/2022] Open
Abstract
Myostatin is a negative regulator of muscle growth and metabolism and its inhibition in mice improves insulin sensitivity, increases glucose uptake into skeletal muscle, and decreases total body fat. A recently described mammalian protein called MSS51 is significantly downregulated with myostatin inhibition. In vitro disruption of Mss51 results in increased levels of ATP, β-oxidation, glycolysis, and oxidative phosphorylation. To determine the in vivo biological function of Mss51 in mice, we disrupted the Mss51 gene by CRISPR/Cas9 and found that Mss51-KO mice have normal muscle weights and fiber-type distribution but reduced fat pads. Myofibers isolated from Mss51-KO mice showed an increased oxygen consumption rate compared with WT controls, indicating an accelerated rate of skeletal muscle metabolism. The expression of genes related to oxidative phosphorylation and fatty acid β-oxidation were enhanced in skeletal muscle of Mss51-KO mice compared with that of WT mice. We found that mice lacking Mss51 and challenged with a high-fat diet were resistant to diet-induced weight gain, had increased whole-body glucose turnover and glycolysis rate, and increased systemic insulin sensitivity and fatty acid β-oxidation. These findings demonstrate that MSS51 modulates skeletal muscle mitochondrial respiration and regulates whole-body glucose and fatty acid metabolism, making it a potential target for obesity and diabetes.
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Affiliation(s)
- Yazmin I. Rovira Gonzalez
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, Maryland, USA
- Cellular and Molecular Medicine Graduate Program
| | - Adam L. Moyer
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, Maryland, USA
- Cellular and Molecular Medicine Graduate Program
| | - Nicolas J. LeTexier
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, Maryland, USA
| | - August D. Bratti
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, Maryland, USA
| | - Siyuan Feng
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, Maryland, USA
| | - Congshan Sun
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, Maryland, USA
- Department of Neurology
- Department of Neuroscience, and
| | - Ting Liu
- Division of Cardiology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Jyothi Mula
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, Maryland, USA
| | - Pankhuri Jha
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, Maryland, USA
| | - Shama R. Iyer
- Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Richard Lovering
- Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Brian O’Rourke
- Division of Cardiology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Hye Lim Noh
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Sujin Suk
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Jason K. Kim
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | | | - Kathryn R. Wagner
- The Hugo W. Moser Research Institute, Kennedy Krieger Institute, Baltimore, Maryland, USA
- Department of Neurology
- Department of Neuroscience, and
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19
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Huelsmann M, Hecker N, Springer MS, Gatesy J, Sharma V, Hiller M. Genes lost during the transition from land to water in cetaceans highlight genomic changes associated with aquatic adaptations. SCIENCE ADVANCES 2019; 5:eaaw6671. [PMID: 31579821 PMCID: PMC6760925 DOI: 10.1126/sciadv.aaw6671] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 08/28/2019] [Indexed: 05/22/2023]
Abstract
The transition from land to water in whales and dolphins (cetaceans) was accompanied by remarkable adaptations. To reveal genomic changes that occurred during this transition, we screened for protein-coding genes that were inactivated in the ancestral cetacean lineage. We found 85 gene losses. Some of these were likely beneficial for cetaceans, for example, by reducing the risk of thrombus formation during diving (F12 and KLKB1), erroneous DNA damage repair (POLM), and oxidative stress-induced lung inflammation (MAP3K19). Additional gene losses may reflect other diving-related adaptations, such as enhanced vasoconstriction during the diving response (mediated by SLC6A18) and altered pulmonary surfactant composition (SEC14L3), while loss of SLC4A9 relates to a reduced need for saliva. Last, loss of melatonin synthesis and receptor genes (AANAT, ASMT, and MTNR1A/B) may have been a precondition for adopting unihemispheric sleep. Our findings suggest that some genes lost in ancestral cetaceans were likely involved in adapting to a fully aquatic lifestyle.
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Affiliation(s)
- Matthias Huelsmann
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
- Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany
- Center for Systems Biology Dresden, 01307 Dresden, Germany
| | - Nikolai Hecker
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
- Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany
- Center for Systems Biology Dresden, 01307 Dresden, Germany
| | - Mark S. Springer
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, CA 92521, USA
| | - John Gatesy
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, CA 92521, USA
- Division of Vertebrate Zoology and Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, NY 10024, USA
| | - Virag Sharma
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
- Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany
- Center for Systems Biology Dresden, 01307 Dresden, Germany
| | - Michael Hiller
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
- Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany
- Center for Systems Biology Dresden, 01307 Dresden, Germany
- Corresponding author.
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20
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Abstract
Together, the nuclear and mitochondrial genomes encode the oxidative phosphorylation (OXPHOS) complexes that reside in the mitochondrial inner membrane and enable aerobic life. Mitochondria maintain their own genome that is expressed and regulated by factors distinct from their nuclear counterparts. For optimal function, the cell must ensure proper stoichiometric production of OXPHOS subunits by coordinating two physically separated and evolutionarily distinct gene expression systems. Here, we review our current understanding of mitonuclear coregulation primarily at the levels of transcription and translation. Additionally, we discuss other levels of coregulation that may exist but remain largely unexplored, including mRNA modification and stability and posttranslational protein degradation.
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Affiliation(s)
- R Stefan Isaac
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA; , ,
| | - Erik McShane
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA; , ,
| | - L Stirling Churchman
- Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA; , ,
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21
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Lin IH, Chang JL, Hua K, Huang WC, Hsu MT, Chen YF. Skeletal muscle in aged mice reveals extensive transformation of muscle gene expression. BMC Genet 2018; 19:55. [PMID: 30089464 PMCID: PMC6083496 DOI: 10.1186/s12863-018-0660-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/26/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Aging leads to decreased skeletal muscle function in mammals and is associated with a progressive loss of muscle mass, quality and strength. Age-related muscle loss (sarcopenia) is an important health problem associated with the aged population. RESULTS We investigated the alteration of genome-wide transcription in mouse skeletal muscle tissue (rectus femoris muscle) during aging using a high-throughput sequencing technique. Analysis revealed significant transcriptional changes between skeletal muscles of mice at 3 (young group) and 24 (old group) months of age. Specifically, genes associated with energy metabolism, cell proliferation, muscle myosin isoforms, as well as immune functions were found to be altered. We observed several interesting gene expression changes in the elderly, many of which have not been reported before. CONCLUSIONS Those data expand our understanding of the various compensatory mechanisms that can occur with age, and further will assist in the development of methods to prevent and attenuate adverse outcomes of aging.
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Affiliation(s)
- I-Hsuan Lin
- VYM Genome Research Center, National Yang-Ming University, Taipei, 112, Taiwan
| | - Junn-Liang Chang
- Department of Pathology & Laboratory Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, 325, Taiwan
| | - Kate Hua
- VYM Genome Research Center, National Yang-Ming University, Taipei, 112, Taiwan
| | - Wan-Chen Huang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, No.250, Wu-Hsing Street, Taipei, 11031, Taiwan
| | - Ming-Ta Hsu
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, 112, Taiwan
| | - Yi-Fan Chen
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, No.250, Wu-Hsing Street, Taipei, 11031, Taiwan.
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22
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Fujita R, Yoshioka K, Seko D, Suematsu T, Mitsuhashi S, Senoo N, Miura S, Nishino I, Ono Y. Zmynd17 controls muscle mitochondrial quality and whole-body metabolism. FASEB J 2018; 32:5012-5025. [PMID: 29913553 DOI: 10.1096/fj.201701264r] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Muscle mitochondria are crucial for systemic metabolic function, yet their regulation remains unclear. The zinc finger MYND domain-containing protein 17 (Zmynd17) was recently identified as a muscle-specific gene in mammals. Here, we investigated the role of Zmynd17 in mice. We found Zmynd17 predominantly expressed in skeletal muscle, especially in fast glycolytic muscle. Genetic Zmynd17 inactivation led to morphologic and functional abnormalities in muscle mitochondria, resulting in decreased respiratory function. Metabolic stress induced by a high-fat diet upregulated Zmynd17 expression and further exacerbated muscle mitochondrial morphology in Zmynd17-deficient mice. Strikingly, Zmynd17 deficiency significantly aggravated metabolic stress-induced hepatic steatosis, glucose intolerance, and insulin resistance. Furthermore, middle-aged mice lacking Zmynd17 exhibited impaired aerobic exercise performance, glucose intolerance, and insulin resistance. Thus, our results indicate that Zmynd17 is a metabolic stress-inducible factor that maintains muscle mitochondrial integrity, with its deficiency profoundly affecting whole-body glucose metabolism.-Fujita, R., Yoshioka, K., Seko, D., Suematsu, T., Mitsuhashi, S., Senoo, N., Miura, S., Nishino, I., Ono, Y. Zmynd17 controls muscle mitochondrial quality and whole-body metabolism.
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Affiliation(s)
- Ryo Fujita
- Musculoskeletal Molecular Biology Research Group, Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kiyoshi Yoshioka
- Musculoskeletal Molecular Biology Research Group, Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Daiki Seko
- Musculoskeletal Molecular Biology Research Group, Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takashi Suematsu
- Central Electron Microscope Laboratory, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Satomi Mitsuhashi
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Nanami Senoo
- Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan; and
| | - Shinji Miura
- Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan; and
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yusuke Ono
- Musculoskeletal Molecular Biology Research Group, Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Agency for Medical Research and Development, Tokyo, Japan
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23
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Bourens M, Barrientos A. A CMC1-knockout reveals translation-independent control of human mitochondrial complex IV biogenesis. EMBO Rep 2017; 18:477-494. [PMID: 28082314 DOI: 10.15252/embr.201643103] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 11/25/2016] [Accepted: 12/02/2016] [Indexed: 11/09/2022] Open
Abstract
Defects in mitochondrial respiratory chain complex IV (CIV) frequently cause encephalocardiomyopathies. Human CIV assembly involves 14 subunits of dual genetic origin and multiple nucleus-encoded ancillary factors. Biogenesis of the mitochondrion-encoded copper/heme-containing COX1 subunit initiates the CIV assembly process. Here, we show that the intermembrane space twin CX9C protein CMC1 forms an early CIV assembly intermediate with COX1 and two assembly factors, the cardiomyopathy proteins COA3 and COX14. A TALEN-mediated CMC1 knockout HEK293T cell line displayed normal COX1 synthesis but decreased CIV activity owing to the instability of newly synthetized COX1. We demonstrate that CMC1 stabilizes a COX1-COA3-COX14 complex before the incorporation of COX4 and COX5a subunits. Additionally, we show that CMC1 acts independently of CIV assembly factors relevant to COX1 metallation (COX10, COX11, and SURF1) or late stability (MITRAC7). Furthermore, whereas human COX14 and COA3 have been proposed to affect COX1 mRNA translation, our data indicate that CMC1 regulates turnover of newly synthesized COX1 prior to and during COX1 maturation, without affecting the rate of COX1 synthesis.
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Affiliation(s)
- Myriam Bourens
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Antoni Barrientos
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA .,Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA
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24
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Ostojić J, Panozzo C, Bourand-Plantefol A, Herbert CJ, Dujardin G, Bonnefoy N. Ribosome recycling defects modify the balance between the synthesis and assembly of specific subunits of the oxidative phosphorylation complexes in yeast mitochondria. Nucleic Acids Res 2016; 44:5785-97. [PMID: 27257059 PMCID: PMC4937339 DOI: 10.1093/nar/gkw490] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 05/20/2016] [Indexed: 01/07/2023] Open
Abstract
Mitochondria have their own translation machinery that produces key subunits of the OXPHOS complexes. This machinery relies on the coordinated action of nuclear-encoded factors of bacterial origin that are well conserved between humans and yeast. In humans, mutations in these factors can cause diseases; in yeast, mutations abolishing mitochondrial translation destabilize the mitochondrial DNA. We show that when the mitochondrial genome contains no introns, the loss of the yeast factors Mif3 and Rrf1 involved in ribosome recycling neither blocks translation nor destabilizes mitochondrial DNA. Rather, the absence of these factors increases the synthesis of the mitochondrially-encoded subunits Cox1, Cytb and Atp9, while strongly impairing the assembly of OXPHOS complexes IV and V. We further show that in the absence of Rrf1, the COX1 specific translation activator Mss51 accumulates in low molecular weight forms, thought to be the source of the translationally-active form, explaining the increased synthesis of Cox1. We propose that Rrf1 takes part in the coordination between translation and OXPHOS assembly in yeast mitochondria. These interactions between general and specific translation factors might reveal an evolutionary adaptation of the bacterial translation machinery to the set of integral membrane proteins that are translated within mitochondria.
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Affiliation(s)
- Jelena Ostojić
- Institute of Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, UEVE, 91198, Gif-sur-Yvette cedex, France
| | - Cristina Panozzo
- Institute of Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, UEVE, 91198, Gif-sur-Yvette cedex, France
| | - Alexa Bourand-Plantefol
- Institute of Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, UEVE, 91198, Gif-sur-Yvette cedex, France
| | - Christopher J Herbert
- Institute of Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, UEVE, 91198, Gif-sur-Yvette cedex, France
| | - Geneviève Dujardin
- Institute of Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, UEVE, 91198, Gif-sur-Yvette cedex, France
| | - Nathalie Bonnefoy
- Institute of Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, UEVE, 91198, Gif-sur-Yvette cedex, France
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