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Stein CS, Zhang X, Witmer NH, Pennington ER, Shaikh SR, Boudreau RL. Mitoregulin supports mitochondrial membrane integrity and protects against cardiac ischemia-reperfusion injury. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.31.596875. [PMID: 38853979 PMCID: PMC11160723 DOI: 10.1101/2024.05.31.596875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
We and others discovered a highly-conserved mitochondrial transmembrane microprotein, named Mitoregulin (Mtln), that supports lipid metabolism. We reported that Mtln strongly binds cardiolipin (CL), increases mitochondrial respiration and Ca 2+ retention capacities, and reduces reactive oxygen species (ROS). Here we extend our observation of Mtln-CL binding and examine Mtln influence on cristae structure and mitochondrial membrane integrity during stress. We demonstrate that mitochondria from constitutive- and inducible Mtln-knockout (KO) mice are susceptible to membrane freeze-damage and that this can be rescued by acute Mtln re-expression. In mitochondrial-simulated lipid monolayers, we show that synthetic Mtln decreases lipid packing and monolayer elasticity. Lipidomics revealed that Mtln-KO heart tissues show broad decreases in 22:6-containing lipids and increased cardiolipin damage/remodeling. Lastly, we demonstrate that Mtln-KO mice suffer worse myocardial ischemia-reperfusion injury, hinting at a translationally-relevant role for Mtln in cardioprotection. Our work supports a model in which Mtln binds cardiolipin and stabilizes mitochondrial membranes to broadly influence diverse mitochondrial functions, including lipid metabolism, while also protecting against stress.
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2
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Shen Y, Chen Y, Zhang S, Wu Z, Lu X, Liu W, Liu B, Zhou X. Smartphone-based digital phenotyping for genome-wide association study of intramuscular fat traits in longissimus dorsi muscle of pigs. Anim Genet 2024; 55:230-237. [PMID: 38290559 DOI: 10.1111/age.13401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 12/11/2023] [Accepted: 01/17/2024] [Indexed: 02/01/2024]
Abstract
Intramuscular fat (IMF) content and distribution significantly contribute to the eating quality of pork. However, the current methods used for measuring these traits are complex, time-consuming and costly. To simplify the measurement process, this study developed a smartphone application (App) called Pork IMF. This App serves as a rapid and portable phenotyping tool for acquiring pork images and extracting the image-based IMF traits through embedded deep-learning algorithms. Utilizing this App, we collected the IMF traits of the longissimus dorsi muscle in a crossbred population of Large White × Tongcheng pigs. Genome-wide association studies detected 13 and 16 SNPs that were significantly associated with IMF content and distribution, respectively, highlighting NR2F2, MCTP2, MTLN, ST3GAL5, NDUFAB1 and PID1 as candidate genes. Our research introduces a user-friendly digital phenotyping technology for quantifying IMF traits and suggests candidate genes and SNPs for genetic improvement of IMF traits in pigs.
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Affiliation(s)
- Yang Shen
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yuxi Chen
- School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, China
| | - Shufeng Zhang
- School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, China
| | - Ze Wu
- School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, China
| | - Xiaoyu Lu
- School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, China
| | - Weizhen Liu
- School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, China
| | - Bang Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
| | - Xiang Zhou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
- Hubei Hongshan Laboratory, Wuhan, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Wuhan, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
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3
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Atakan MM, Türkel İ, Özerkliğ B, Koşar ŞN, Taylor DF, Yan X, Bishop DJ. Small peptides: could they have a big role in metabolism and the response to exercise? J Physiol 2024; 602:545-568. [PMID: 38196325 DOI: 10.1113/jp283214] [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: 10/19/2023] [Accepted: 12/14/2023] [Indexed: 01/11/2024] Open
Abstract
Exercise is a powerful non-pharmacological intervention for the treatment and prevention of numerous chronic diseases. Contracting skeletal muscles provoke widespread perturbations in numerous cells, tissues and organs, which stimulate multiple integrated adaptations that ultimately contribute to the many health benefits associated with regular exercise. Despite much research, the molecular mechanisms driving such changes are not completely resolved. Technological advancements beginning in the early 1960s have opened new avenues to explore the mechanisms responsible for the many beneficial adaptations to exercise. This has led to increased research into the role of small peptides (<100 amino acids) and mitochondrially derived peptides in metabolism and disease, including those coded within small open reading frames (sORFs; coding sequences that encode small peptides). Recently, it has been hypothesized that sORF-encoded mitochondrially derived peptides and other small peptides play significant roles as exercise-sensitive peptides in exercise-induced physiological adaptation. In this review, we highlight the discovery of mitochondrially derived peptides and newly discovered small peptides involved in metabolism, with a specific emphasis on their functions in exercise-induced adaptations and the prevention of metabolic diseases. In light of the few studies available, we also present data on how both single exercise sessions and exercise training affect expression of sORF-encoded mitochondrially derived peptides. Finally, we outline numerous research questions that await investigation regarding the roles of mitochondrially derived peptides in metabolism and prevention of various diseases, in addition to their roles in exercise-induced physiological adaptations, for future studies.
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Affiliation(s)
- Muhammed M Atakan
- Division of Exercise Nutrition and Metabolism, Faculty of Sport Sciences, Hacettepe University, Ankara, Turkey
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Victoria, Australia
| | - İbrahim Türkel
- Department of Exercise and Sport Sciences, Faculty of Sport Sciences, Hacettepe University, Ankara, Turkey
| | - Berkay Özerkliğ
- Department of Exercise and Sport Sciences, Faculty of Sport Sciences, Hacettepe University, Ankara, Turkey
| | - Şükran N Koşar
- Division of Exercise Nutrition and Metabolism, Faculty of Sport Sciences, Hacettepe University, Ankara, Turkey
| | - Dale F Taylor
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Victoria, Australia
| | - Xu Yan
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Victoria, Australia
- Sarcopenia Research Program, Australia Institute for Musculoskeletal Sciences (AIMSS), Melbourne, Victoria, Australia
| | - David J Bishop
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, Victoria, Australia
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Kore H, Datta KK, Nagaraj SH, Gowda H. Protein-coding potential of non-canonical open reading frames in human transcriptome. Biochem Biophys Res Commun 2023; 684:149040. [PMID: 37897910 DOI: 10.1016/j.bbrc.2023.09.068] [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: 07/13/2023] [Revised: 09/09/2023] [Accepted: 09/23/2023] [Indexed: 10/30/2023]
Abstract
In recent years, proteogenomics and ribosome profiling studies have identified a large number of proteins encoded by noncoding regions in the human genome. They are encoded by small open reading frames (sORFs) in the untranslated regions (UTRs) of mRNAs and long non-coding RNAs (lncRNAs). These sORF encoded proteins (SEPs) are often <150AA and show poor evolutionary conservation. A subset of them have been functionally characterized and shown to play an important role in fundamental biological processes including cardiac and muscle function, DNA repair, embryonic development and various human diseases. How many novel protein-coding regions exist in the human genome and what fraction of them are functionally important remains a mystery. In this review, we discuss current progress in unraveling SEPs, approaches used for their identification, their limitations and reliability of these identifications. We also discuss functionally characterized SEPs and their involvement in various biological processes and diseases. Lastly, we provide insights into their distinctive features compared to canonical proteins and challenges associated with annotating these in protein reference databases.
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Affiliation(s)
- Hitesh Kore
- Centre for Genomics and Personalised Health, Queensland University of Technology, Brisbane, Queensland, 4059, Australia; Cancer Precision Medicine Group, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, Queensland, 4006, Australia; Faculty of Health, Queensland University of Technology, Brisbane, Queensland, 4059, Australia.
| | - Keshava K Datta
- Proteomics and Metabolomics Platform, La Trobe University, Melbourne, VIC, 3083, Australia
| | - Shivashankar H Nagaraj
- Centre for Genomics and Personalised Health, Queensland University of Technology, Brisbane, Queensland, 4059, Australia; Faculty of Health, Queensland University of Technology, Brisbane, Queensland, 4059, Australia
| | - Harsha Gowda
- Centre for Genomics and Personalised Health, Queensland University of Technology, Brisbane, Queensland, 4059, Australia; Cancer Precision Medicine Group, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, Queensland, 4006, Australia; Faculty of Health, Queensland University of Technology, Brisbane, Queensland, 4059, Australia; Faculty of Medicine, The University of Queensland, Queensland, 4072, Australia.
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Yang Q, Gao J, Wang TY, Ding JC, Hu PF. Integration of RNA-Seq and Machine Learning Identifies Hub Genes for Empagliflozin Benefitable Heart Failure with Reduced Ejection Fraction. J Inflamm Res 2023; 16:4733-4749. [PMID: 37872956 PMCID: PMC10590560 DOI: 10.2147/jir.s429096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/12/2023] [Indexed: 10/25/2023] Open
Abstract
Purpose This study aimed to analyze the hub genes of heart failure with reduced ejection fraction (HFrEF) treated with Empagliflozin using RNA sequencing (RNA-seq) and bioinformatics methods, including machine learning. Methods From February 2021 to February 2023, nine patients with HFrEF were enrolled from our hospital's cardiovascular department. In addition to routine drug treatment, these patients received 10 mg of Empagliflozin once daily for two months. Efficacy was assessed and RNA-seq was performed on peripheral blood before and after treatment with empagliflozin. HFrEF-related hub genes were identified through bioinformatics analyses including differential gene expression analysis, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses, immune infiltration analysis, machine learning, immune cell correlation analysis and clinical indicator correlation analysis. Results The nine patients included in this study completed a two-month treatment regimen, with an average age of 62.11 ± 6.36 years. By performing bioinformatics analysis on the transcriptome from the treatment groups, 42 differentially expressed genes were identified, with six being up-regulated and 36 being down-regulated (|log2FC|>1 and adj.pvalue<0.05). Immune infiltration analysis of these genes demonstrated a significant difference in the proportion of plasma between the pre-treatment and post-treatment groups (p<0.05). Two hub genes, GTF2IP14 and MTLN, were finally identified through machine learning. Further analysis of the correlation between the hub genes and immune cells suggested a negative correlation between GTF2IP14 and naive B cells, and a positive correlation between MTLN and regulatory T cells and resting memory CD4+ T cells (p<0.05). Conclusion Through RNA-seq and bioinformatics analysis, this study identified GTF2IP14 and MTLN as the hub genes of HFrEF, and their mechanisms may be related to immune inflammatory responses and various immune cells.
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Affiliation(s)
- Qiang Yang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, People’s Republic of China
| | - Jing Gao
- Department of Cardiology, Sir Run Run Shaw Hospital, College of Medicine Zhejiang University, Hangzhou, Zhejiang Province, 310018, People’s Republic of China
| | - Tian-Yu Wang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, People’s Republic of China
| | - Jun-Can Ding
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, People’s Republic of China
| | - Peng-Fei Hu
- Department of Cardiology, the Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310005, People’s Republic of China
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Zhang S, Guo Y, Fidelito G, Robinson DR, Liang C, Lim R, Bichler Z, Guo R, Wu G, Xu H, Zhou QD, Singh BK, Yen P, Kappei D, Stroud DA, Ho L. LINC00116-encoded microprotein mitoregulin regulates fatty acid metabolism at the mitochondrial outer membrane. iScience 2023; 26:107558. [PMID: 37664623 PMCID: PMC10469944 DOI: 10.1016/j.isci.2023.107558] [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: 12/05/2022] [Revised: 07/04/2023] [Accepted: 08/02/2023] [Indexed: 09/05/2023] Open
Abstract
LINC00116 encodes a microprotein first identified as Mitoregulin (MTLN), where it was reported to localize to the inner membrane of mitochondria to regulate fatty acid oxidation and oxidative phosphorylation. These initial discoveries were followed by reports with differing findings about its molecular functions and submitochondrial localization. To clarify the apparent discrepancies, we constructed multiple orthogonal methods of determining the localization of MTLN, including split GFP-based reporters that enable efficient and reliable topology analyses for microproteins. These methods unequivocally demonstrate MTLN primarily localizes to the outer membrane of mitochondria, where it interacts with enzymes of fatty acid metabolism including CPT1B and CYB5B. Loss of MTLN causes the accumulation of very long-chain fatty acids (VLCFAs), especially docosahexaenoic acid (DHA). Intriguingly, loss of MTLN protects mice against western diet/fructose-induced insulin-resistance, suggests a protective effect of VLCFAs in this context. MTLN thus serves as an attractive target to control the catabolism of VLCFAs.
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Affiliation(s)
- Shan Zhang
- Department of Biochemistry, Department of Cardiology of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
- Cardiovascular and Metabolic Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Yabo Guo
- Department of Biochemistry, Department of Cardiology of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Gio Fidelito
- Cardiovascular and Metabolic Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - David R.L. Robinson
- Department of Biochemistry and Pharmacology, The Bio21 Molecular Science & Biotechnology Institute, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Chao Liang
- Cardiovascular and Metabolic Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Radiance Lim
- Cardiovascular and Metabolic Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Zoë Bichler
- Behavioral Neuroscience Laboratory, National Neuroscience Institute, Singapore 308433, Singapore
| | - Ruiyang Guo
- Department of Biochemistry, Department of Cardiology of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Gaoqi Wu
- Institute of Immunology, Department of Surgical Oncology of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - He Xu
- Institute of Immunology, Department of Surgical Oncology of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Quan D. Zhou
- Institute of Immunology, Department of Surgical Oncology of The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Brijesh K. Singh
- Cardiovascular and Metabolic Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Paul Yen
- Cardiovascular and Metabolic Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Dennis Kappei
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
| | - David A. Stroud
- Department of Biochemistry and Pharmacology, The Bio21 Molecular Science & Biotechnology Institute, University of Melbourne, Melbourne, VIC 3010, Australia
- Murdoch Children’s Research Institute, Royal Children’s Hospital, Melbourne, VIC 3010, Australia
- Victorian Clinical Genetics Services, Murdoch Children’s Research Institute, Melbourne, VIC 3010, Australia
| | - Lena Ho
- Cardiovascular and Metabolic Diseases, Duke-NUS Medical School, Singapore 169857, Singapore
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Hassel KR, Brito-Estrada O, Makarewich CA. Microproteins: Overlooked regulators of physiology and disease. iScience 2023; 26:106781. [PMID: 37213226 PMCID: PMC10199267 DOI: 10.1016/j.isci.2023.106781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2023] Open
Abstract
Ongoing efforts to generate a complete and accurate annotation of the genome have revealed a significant blind spot for small proteins (<100 amino acids) originating from short open reading frames (sORFs). The recent discovery of numerous sORF-encoded proteins, termed microproteins, that play diverse roles in critical cellular processes has ignited the field of microprotein biology. Large-scale efforts are currently underway to identify sORF-encoded microproteins in diverse cell-types and tissues and specialized methods and tools have been developed to aid in their discovery, validation, and functional characterization. Microproteins that have been identified thus far play important roles in fundamental processes including ion transport, oxidative phosphorylation, and stress signaling. In this review, we discuss the optimized tools available for microprotein discovery and validation, summarize the biological functions of numerous microproteins, outline the promise for developing microproteins as therapeutic targets, and look forward to the future of the field of microprotein biology.
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Affiliation(s)
- Keira R. Hassel
- The Heart Institute, Division of Molecular Cardiovascular Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Omar Brito-Estrada
- The Heart Institute, Division of Molecular Cardiovascular Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Catherine A. Makarewich
- The Heart Institute, Division of Molecular Cardiovascular Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
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Averina OA, Permyakov OA, Emelianova MA, Guseva EA, Grigoryeva OO, Lovat ML, Egorova AE, Grinchenko AV, Kumeiko VV, Marey MV, Manskikh VN, Dontsova OA, Vyssokikh MY, Sergiev PV. Kidney-Related Function of Mitochondrial Protein Mitoregulin. Int J Mol Sci 2023; 24:ijms24109106. [PMID: 37240452 DOI: 10.3390/ijms24109106] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
A small protein, Mitoregulin (Mtln), localizes in mitochondria and contributes to oxidative phosphorylation and fatty acid metabolism. Mtln knockout mice develop obesity on a high-fat diet, demonstrating elevated cardiolipin damage and suboptimal creatine kinase oligomerization in muscle tissue. Kidneys heavily depend on the oxidative phosphorylation in mitochondria. Here we report kidney-related phenotypes in aged Mtln knockout mice. Similar to Mtln knockout mice muscle mitochondria, those of the kidney demonstrate a decreased respiratory complex I activity and excessive cardiolipin damage. Aged male mice carrying Mtln knockout demonstrated an increased frequency of renal proximal tubules' degeneration. At the same time, a decreased glomerular filtration rate has been more frequently detected in aged female mice devoid of Mtln. An amount of Mtln partner protein, Cyb5r3, is drastically decreased in the kidneys of Mtln knockout mice.
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Affiliation(s)
- Olga A Averina
- Institute of Functional Genomics, Lomonosov Moscow State University, 119992 Moscow, Russia
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Oleg A Permyakov
- Institute of Functional Genomics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Mariia A Emelianova
- Center for Life Sciences, Skolkovo Institute of Science and Technology, 143025 Moscow, Russia
| | - Ekaterina A Guseva
- Center for Life Sciences, Skolkovo Institute of Science and Technology, 143025 Moscow, Russia
| | - Olga O Grigoryeva
- Institute of Functional Genomics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Maxim L Lovat
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Institute of Mitoengineering MSU, 119992 Moscow, Russia
| | - Anna E Egorova
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 690922 Vladivostok, Russia
| | - Andrei V Grinchenko
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 690041 Vladivostok, Russia
| | - Vadim V Kumeiko
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 690922 Vladivostok, Russia
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 690041 Vladivostok, Russia
| | - Maria V Marey
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I.Kulakov, 117198 Moscow, Russia
| | - Vasily N Manskikh
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Institute of Mitoengineering MSU, 119992 Moscow, Russia
| | - Olga A Dontsova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Center for Life Sciences, Skolkovo Institute of Science and Technology, 143025 Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119992 Moscow, Russia
| | - Mikhail Y Vyssokikh
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I.Kulakov, 117198 Moscow, Russia
| | - Petr V Sergiev
- Institute of Functional Genomics, Lomonosov Moscow State University, 119992 Moscow, Russia
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Center for Life Sciences, Skolkovo Institute of Science and Technology, 143025 Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
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9
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Averina OA, Permyakov OA, Emelianova MA, Grigoryeva OO, Lovat ML, Egorova AE, Grinchenko AV, Kumeiko VV, Marey MV, Manskikh VN, Dontsova OA, Vysokikh MY, Sergiev PV. Mitoregulin Contributes to Creatine Shuttling and Cardiolipin Protection in Mice Muscle. Int J Mol Sci 2023; 24:ijms24087589. [PMID: 37108753 PMCID: PMC10143810 DOI: 10.3390/ijms24087589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/06/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
Small peptides compose a large share of the mitochondrial proteome. Mitoregulin (Mtln) is a mitochondrial peptide known to contribute to the respiratory complex I functioning and other processes in mitochondria. In our previous studies, we demonstrated that Mtln knockout mice develop obesity and accumulate triglycerides and other oxidation substrates in serum, concomitant with an exhaustion of tricarboxylic acids cycle intermediates. Here we examined the functional role of Mtln in skeletal muscles, one of the major energy consuming tissues. We observed reduced muscle strength for Mtln knockout mice. Decrease of the mitochondrial cardiolipin and concomitant increase in monolysocardiolipin concentration upon Mtln inactivation is likely to be a consequence of imbalance between oxidative damage and remodeling of cardiolipin. It is accompanied by the mitochondrial creatine kinase octamer dissociation and suboptimal respiratory chain performance in Mtln knockout mice.
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Affiliation(s)
- Olga A Averina
- Institute of Functional Genomics, Lomonosov Moscow State University, 119992 Moscow, Russia
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Oleg A Permyakov
- Institute of Functional Genomics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Mariia A Emelianova
- Center for Life Sciences, Skolkovo Institute of Science and Technology, 143025 Moscow, Russia
| | - Olga O Grigoryeva
- Institute of Functional Genomics, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Maxim L Lovat
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Institute of Mitoengineering MSU, 119992 Moscow, Russia
| | - Anna E Egorova
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 690922 Vladivostok, Russia
| | - Andrei V Grinchenko
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 690041 Vladivostok, Russia
| | - Vadim V Kumeiko
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 690922 Vladivostok, Russia
- A.V. Zhirmunsky National Scientific Center of Marine Biology, 690041 Vladivostok, Russia
| | - Maria V Marey
- Research Center for Obstetrics, Gynecology and Perinatology, 117198 Moscow, Russia
| | - Vasily N Manskikh
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Institute of Mitoengineering MSU, 119992 Moscow, Russia
| | - Olga A Dontsova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Center for Life Sciences, Skolkovo Institute of Science and Technology, 143025 Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119992 Moscow, Russia
| | - Mikhail Yu Vysokikh
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Research Center for Obstetrics, Gynecology and Perinatology, 117198 Moscow, Russia
| | - Petr V Sergiev
- Institute of Functional Genomics, Lomonosov Moscow State University, 119992 Moscow, Russia
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Center for Life Sciences, Skolkovo Institute of Science and Technology, 143025 Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
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