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Xiao J, Dong Y, Jin J, Yuan Z, Wang C, Xiang R, Guo Y. A missense variant in MYOF is associated with ARVC and sudden cardiac death. Gene 2024; 902:148193. [PMID: 38253296 DOI: 10.1016/j.gene.2024.148193] [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: 10/31/2023] [Revised: 12/22/2023] [Accepted: 01/18/2024] [Indexed: 01/24/2024]
Abstract
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is rare autosomal dominant genetic disorder that leads to severe arrhythmia and sudden cardiac death. Although previous studies in clinical, pathological and genetics of ARVC established consensus diagnostic criteria and expanded the spectrum of pathogenic genes, there is still a proportion of patients with unclear causative factors. Here, whole-exome sequencing was employed to investigate the genetic etiology of a 15-year-old sudden cardiac death female caused by ARVC. A novel variant of MYOF (NM_013451.3: c.4723G > C: p.D1575H) was identified, which is a member of the Ferlin family of proteins is associated with cardiomyopathy. And the bioinformatics analysis predicted the pathogenicity of this variant. We report the first variant of MYOF in ARVC, which imply a vital role of MYOF in cardiomyopathy.
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Affiliation(s)
- Jiao Xiao
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China.
| | - Yi Dong
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China.
| | - Jieyuan Jin
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China.
| | - Zhuangzhuang Yuan
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China.
| | - Chenyu Wang
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China.
| | - Rong Xiang
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, China.
| | - Yadong Guo
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China.
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Kawan M, Körner M, Schlosser A, Buchberger A. p97/VCP Promotes the Recycling of Endocytic Cargo. Mol Biol Cell 2023; 34:ar126. [PMID: 37756124 PMCID: PMC10848945 DOI: 10.1091/mbc.e23-06-0237] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/11/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
The endocytic pathway is of central importance for eukaryotic cells, as it enables uptake of extracellular materials, membrane protein quality control and recycling, as well as modulation of receptor signaling. While the ATPase p97 (VCP, Cdc48) has been found to be involved in the fusion of early endosomes and endolysosomal degradation, its role in endocytic trafficking is still incompletely characterized. Here, we identify myoferlin (MYOF), a ferlin family member with functions in membrane trafficking and repair, as a hitherto unknown p97 interactor. The interaction of MYOF with p97 depends on the cofactor PLAA previously linked to endosomal sorting. Besides PLAA, shared interactors of p97 and MYOF comprise several proteins involved in endosomal recycling pathways, including Rab11, Rab14, and the transferrin receptor CD71. Accordingly, a fraction of p97 and PLAA localizes to MYOF-, Rab11-, and Rab14-positive endosomal compartments. Pharmacological inhibition of p97 delays transferrin recycling, indicating that p97 promotes not only the lysosomal degradation, but also the recycling of endocytic cargo.
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Affiliation(s)
- Mona Kawan
- Chair of Biochemistry I, University of Würzburg, Biocenter, Am Hubland, 97074 Würzburg, Germany
| | - Maria Körner
- Chair of Biochemistry I, University of Würzburg, Biocenter, Am Hubland, 97074 Würzburg, Germany
| | - Andreas Schlosser
- Rudolf Virchow Center for Integrative and Translational Bioimaging, University of Würzburg, Josef-Schneider-Straße 2, 97080 Würzburg, Germany
| | - Alexander Buchberger
- Chair of Biochemistry I, University of Würzburg, Biocenter, Am Hubland, 97074 Würzburg, Germany
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Functional genomics analysis reveals the evolutionary adaptation and demographic history of pygmy lorises. Proc Natl Acad Sci U S A 2022; 119:e2123030119. [PMID: 36161902 DOI: 10.1073/pnas.2123030119] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Lorises are a group of globally threatened strepsirrhine primates that exhibit many unusual physiological and behavioral features, including a low metabolic rate, slow movement, and hibernation. Here, we assembled a chromosome-level genome sequence of the pygmy loris (Xanthonycticebus pygmaeus) and resequenced whole genomes from 50 pygmy lorises and 6 Bengal slow lorises (Nycticebus bengalensis). We found that many gene families involved in detoxification have been specifically expanded in the pygmy loris, including the GSTA gene family, with many newly derived copies functioning specifically in the liver. We detected many genes displaying evolutionary convergence between pygmy loris and koala, including PITRM1. Significant decreases in PITRM1 enzymatic activity in these two species may have contributed to their characteristic low rate of metabolism. We also detected many evolutionarily convergent genes and positively selected genes in the pygmy loris that are involved in muscle development. Functional assays demonstrated the decreased ability of one positively selected gene, MYOF, to up-regulate the fast-type muscle fiber, consistent with the lower proportion of fast-twitch muscle fibers in the pygmy loris. The protein product of another positively selected gene in the pygmy loris, PER2, exhibited weaker binding to the key circadian core protein CRY, a finding that may be related to this species' unusual circadian rhythm. Finally, population genomics analysis revealed that these two extant loris species, which coexist in the same habitat, have exhibited an inverse relationship in terms of their demography over the past 1 million years, implying strong interspecies competition after speciation.
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Cádiz MI, López ME, Díaz-Domínguez D, Cáceres G, Marin-Nahuelpi R, Gomez-Uchida D, Canales-Aguirre CB, Orozco-terWengel P, Yáñez JM. Detection of selection signatures in the genome of a farmed population of anadromous rainbow trout (Oncorhynchus mykiss). Genomics 2021; 113:3395-3404. [PMID: 34339816 DOI: 10.1016/j.ygeno.2021.07.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 07/06/2021] [Accepted: 07/28/2021] [Indexed: 11/26/2022]
Abstract
Domestication processes and artificial selection are likely to leave signatures that can be detected at a molecular level in farmed rainbow trout (Oncorhynchus mykiss). These signatures of selection are genomic regions that contain functional genetic variants conferring a higher fitness to their bearers. We genotyped 749 rainbow trout from a commercial population using a rainbow trout Axiom 57 K SNP array panel and identified putative genomic regions under selection using the pcadapt, Composite Likelihood Ratio (CLR) and Integrated Haplotype Score (iHS) methods. After applying quality-control pipelines and statistical analyses, we detected 12, 96 and 16 SNPs putatively under selection, associated with 96, 781 and 115 candidate genes, respectively. Several of these candidate genes were associated with growth, early development, reproduction, behavior and immune system traits. In addition, some of the SNPs were found in interesting regions located in autosomal inversions on Omy05 and Omy20. These findings could represent a genome-wide map of selection signatures in farmed rainbow trout and could be important in explaining domestication and selection for genetic traits of commercial interest.
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Affiliation(s)
- María I Cádiz
- Programa de Doctorado en Ciencias Silvoagropecuarias y Veterinarias, Campus Sur, Universidad de Chile, Santa Rosa 11315, La Pintana, Santiago 8820808, Chile; Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Avenida Santa Rosa 11735, La Pintana, 8820808 Santiago, Chile; Núcleo Milenio de Salmónidos Invasores (INVASAL), Concepción, Chile
| | - María E López
- Department of Aquatic Resources, Swedish University of Agricultural Sciences, Drottningholm, Sweden
| | | | - Giovanna Cáceres
- Programa de Doctorado en Ciencias Silvoagropecuarias y Veterinarias, Campus Sur, Universidad de Chile, Santa Rosa 11315, La Pintana, Santiago 8820808, Chile; Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Avenida Santa Rosa 11735, La Pintana, 8820808 Santiago, Chile
| | - Rodrigo Marin-Nahuelpi
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Avenida Santa Rosa 11735, La Pintana, 8820808 Santiago, Chile; Núcleo Milenio de Salmónidos Invasores (INVASAL), Concepción, Chile
| | - Daniel Gomez-Uchida
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Chile; Núcleo Milenio de Salmónidos Invasores (INVASAL), Concepción, Chile
| | - Cristian B Canales-Aguirre
- Centro i~Mar, Universidad de Los Lagos, Camino Chinquihue 6 km, Puerto Montt, Chile; Núcleo Milenio de Salmónidos Invasores (INVASAL), Concepción, Chile
| | | | - José M Yáñez
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Avenida Santa Rosa 11735, La Pintana, 8820808 Santiago, Chile; Núcleo Milenio de Salmónidos Invasores (INVASAL), Concepción, Chile.
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Skeletal Muscle Mitochondria Dysfunction in Genetic Neuromuscular Disorders with Cardiac Phenotype. Int J Mol Sci 2021; 22:ijms22147349. [PMID: 34298968 PMCID: PMC8307986 DOI: 10.3390/ijms22147349] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/03/2021] [Accepted: 07/05/2021] [Indexed: 02/07/2023] Open
Abstract
Mitochondrial dysfunction is considered the major contributor to skeletal muscle wasting in different conditions. Genetically determined neuromuscular disorders occur as a result of mutations in the structural proteins of striated muscle cells and therefore are often combined with cardiac phenotype, which most often manifests as a cardiomyopathy. The specific roles played by mitochondria and mitochondrial energetic metabolism in skeletal muscle under muscle-wasting conditions in cardiomyopathies have not yet been investigated in detail, and this aspect of genetic muscle diseases remains poorly characterized. This review will highlight dysregulation of mitochondrial representation and bioenergetics in specific skeletal muscle disorders caused by mutations that disrupt the structural and functional integrity of muscle cells.
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Vershinina T, Fomicheva Y, Muravyev A, Jorholt J, Kozyreva A, Kiselev A, Gordeev M, Vasichkina E, Segrushichev A, Pervunina T, Sjoberg G, Skyttner-Rahmani S, Sejersen T, Kostareva A. Genetic Spectrum of Left Ventricular Non-Compaction in Paediatric Patients. Cardiology 2020; 145:746-756. [PMID: 33049752 DOI: 10.1159/000510439] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/11/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Left ventricular non-compaction (LVNC) represents a genetically heterogeneous cardiomyopathy which occurs in both children and adults. Its genetic spectrum overlaps with other types of cardiomyopathy. However, LVNC phenotypes in different age groups can have distinct genetic aetiologies. The aim of the study was to decipher the genetic spectrum of LVNC presented in childhood. Patient Group and Methods: Twenty patients under the age of 18 years diagnosed with LVNC were enrolled in the study. Target sequencing and whole-exome sequencing were performed using a panel of 108 cardiomyopathy-associated genes. Pathogenic, likely pathogenic, and variants of unknown significance found in genes highly expressed in cardiomyocytes were considered as variants of interest for further analysis. RESULTS The median age at presentation was 8.0 (0.1-17) years, with 6 patients presenting before 1 year of age. Twelve (60%) patients demonstrated reduced ejection fraction. Right ventricular (RV) dilation was registered in 6 (30%), often in combination with reduced RV contractility (25%). Almost half (45%) of the patients demonstrated biventricular involvement already at disease presentation. For pathogenic and likely pathogenic variants, the positive genotyping rate was 45%, and these variants were found mainly in non-contractile structural sarcomeric genes (ACTN2, MYPN, and TTN) or in metabolic and signal transduction genes (BRAF and TAZ). Likely pathogenic TAZ variants were detected in all 5 patients suspected of having Barth syndrome. No pathogenic or likely pathogenic variants were found in genes encoding for sarcomeric contractile proteins, but variants of unknown significance were detected in 3 out of 20 patients (MYH6, MYH7, and MYLK2). In 4 patients, variants of unknown significance in ion-channel genes were detected. CONCLUSION We detected a low burden of contractile sarcomeric variants in LVNC patients presenting below the age of 18 years, with the major number of variants residing in non-contractile structural sarcomeric genes. The identification of the variants in ion-channel and related genes not previously associated with LVNC in paediatric patients requires further examination of their functional role.
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Affiliation(s)
- Tatiana Vershinina
- Almazov National Medical Research Centre, Saint Petersburg, Russian Federation
| | - Yulia Fomicheva
- Almazov National Medical Research Centre, Saint Petersburg, Russian Federation
| | - Alexey Muravyev
- Almazov National Medical Research Centre, Saint Petersburg, Russian Federation
| | - John Jorholt
- Department of Women's and Children's Health and Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Alexandra Kozyreva
- Almazov National Medical Research Centre, Saint Petersburg, Russian Federation
| | - Artem Kiselev
- Almazov National Medical Research Centre, Saint Petersburg, Russian Federation
| | - Michail Gordeev
- Almazov National Medical Research Centre, Saint Petersburg, Russian Federation
| | - Elena Vasichkina
- Almazov National Medical Research Centre, Saint Petersburg, Russian Federation
| | | | - Tatyana Pervunina
- Almazov National Medical Research Centre, Saint Petersburg, Russian Federation
| | - Gunnar Sjoberg
- Department of Women's and Children's Health and Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Sanaz Skyttner-Rahmani
- Department of Women's and Children's Health and Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Thomas Sejersen
- Department of Women's and Children's Health and Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Anna Kostareva
- Almazov National Medical Research Centre, Saint Petersburg, Russian Federation, .,Department of Women's and Children's Health and Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden,
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Abstract
Ferlins are multiple-C2-domain proteins involved in Ca2+-triggered membrane dynamics within the secretory, endocytic and lysosomal pathways. In bony vertebrates there are six ferlin genes encoding, in humans, dysferlin, otoferlin, myoferlin, Fer1L5 and 6 and the long noncoding RNA Fer1L4. Mutations in DYSF (dysferlin) can cause a range of muscle diseases with various clinical manifestations collectively known as dysferlinopathies, including limb-girdle muscular dystrophy type 2B (LGMD2B) and Miyoshi myopathy. A mutation in MYOF (myoferlin) was linked to a muscular dystrophy accompanied by cardiomyopathy. Mutations in OTOF (otoferlin) can be the cause of nonsyndromic deafness DFNB9. Dysregulated expression of any human ferlin may be associated with development of cancer. This review provides a detailed description of functions of the vertebrate ferlins with a focus on muscle ferlins and discusses the mechanisms leading to disease development.
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Peulen O, Rademaker G, Anania S, Turtoi A, Bellahcène A, Castronovo V. Ferlin Overview: From Membrane to Cancer Biology. Cells 2019; 8:cells8090954. [PMID: 31443490 PMCID: PMC6770723 DOI: 10.3390/cells8090954] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 02/06/2023] Open
Abstract
In mammal myocytes, endothelial cells and inner ear cells, ferlins are proteins involved in membrane processes such as fusion, recycling, endo- and exocytosis. They harbour several C2 domains allowing their interaction with phospholipids. The expression of several Ferlin genes was described as altered in several tumoural tissues. Intriguingly, beyond a simple alteration, myoferlin, otoferlin and Fer1L4 expressions were negatively correlated with patient survival in some cancer types. Therefore, it can be assumed that membrane biology is of extreme importance for cell survival and signalling, making Ferlin proteins core machinery indispensable for cancer cell adaptation to hostile environments. The evidences suggest that myoferlin, when overexpressed, enhances cancer cell proliferation, migration and metabolism by affecting various aspects of membrane biology. Targeting myoferlin using pharmacological compounds, gene transfer technology, or interfering RNA is now considered as an emerging therapeutic strategy.
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Affiliation(s)
- Olivier Peulen
- Metastasis Research Laboratory, Giga Cancer, University of Liège, B4000 Liège, Belgium.
| | - Gilles Rademaker
- Metastasis Research Laboratory, Giga Cancer, University of Liège, B4000 Liège, Belgium
| | - Sandy Anania
- Metastasis Research Laboratory, Giga Cancer, University of Liège, B4000 Liège, Belgium
| | - Andrei Turtoi
- Tumor Microenvironment Laboratory, Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, 34000 Montpellier, France
- Institut du Cancer de Montpeiller, 34000 Montpellier, France
- Université de Montpellier, 34000 Montpellier, France
| | - Akeila Bellahcène
- Metastasis Research Laboratory, Giga Cancer, University of Liège, B4000 Liège, Belgium
| | - Vincent Castronovo
- Metastasis Research Laboratory, Giga Cancer, University of Liège, B4000 Liège, Belgium
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