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Beust C, Valdeolivas A, Baptista A, Brière G, Lévy N, Ozisik O, Baudot A. The Molecular Landscape of Premature Aging Diseases Defined by Multilayer Network Exploration. Adv Biol (Weinh) 2024:e2400134. [PMID: 39123285 DOI: 10.1002/adbi.202400134] [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: 03/10/2024] [Revised: 06/26/2024] [Indexed: 08/12/2024]
Abstract
Premature Aging (PA) diseases are rare genetic disorders that mimic some aspects of physiological aging at an early age. Various causative genes of PA diseases have been identified in recent years, providing insights into some dysfunctional cellular processes. However, the identification of PA genes also revealed significant genetic heterogeneity and highlighted the gaps in this understanding of PA-associated molecular mechanisms. Furthermore, many patients remain undiagnosed. Overall, the current lack of knowledge about PA diseases hinders the development of effective diagnosis and therapies and poses significant challenges to improving patient care. Here, a network-based approach to systematically unravel the cellular functions disrupted in PA diseases is presented. Leveraging a network community identification algorithm, it is delved into a vast multilayer network of biological interactions to extract the communities of 67 PA diseases from their 132 associated genes. It is found that these communities can be grouped into six distinct clusters, each reflecting specific cellular functions: DNA repair, cell cycle, transcription regulation, inflammation, cell communication, and vesicle-mediated transport. That these clusters collectively represent the landscape of the molecular mechanisms that are perturbed in PA diseases, providing a framework for better understanding their pathogenesis is proposed. Intriguingly, most clusters also exhibited a significant enrichment in genes associated with physiological aging, suggesting a potential overlap between the molecular underpinnings of PA diseases and natural aging.
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Affiliation(s)
- Cécile Beust
- Aix Marseille Univ, INSERM, Marseille Medical Genetics (MMG), Marseille, France
| | - Alberto Valdeolivas
- Aix Marseille Univ, INSERM, Marseille Medical Genetics (MMG), Marseille, France
| | - Anthony Baptista
- Aix Marseille Univ, INSERM, Marseille Medical Genetics (MMG), Marseille, France
| | - Galadriel Brière
- Aix Marseille Univ, INSERM, Marseille Medical Genetics (MMG), Marseille, France
- Aix Marseille Univ, CNRS, I2M, Marseille, France
| | - Nicolas Lévy
- Aix Marseille Univ, INSERM, Marseille Medical Genetics (MMG), Marseille, France
| | - Ozan Ozisik
- Aix Marseille Univ, INSERM, Marseille Medical Genetics (MMG), Marseille, France
| | - Anaïs Baudot
- Aix Marseille Univ, INSERM, Marseille Medical Genetics (MMG), Marseille, France
- CNRS, Marseille, France
- Barcelona Supercomputing Center (BSC), Barcelona, Spain
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Salik D, Richert B, Smits G. Clinical and molecular diagnosis of genodermatoses: Review and perspectives. J Eur Acad Dermatol Venereol 2023; 37:488-500. [PMID: 36502512 DOI: 10.1111/jdv.18769] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 11/08/2022] [Indexed: 11/23/2022]
Abstract
Genodermatoses are a complex and heterogeneous group of genetic skin disorders characterized by variable expression and clinical and genetic heterogeneity, rendering their diagnosis challenging. DNA-based techniques, like whole-exome sequencing, can establish a diagnosis in 50% of cases. RNA-sequencing is emerging as an attractive tool that can obtain information regarding gene expression while integrating functional genomic data with regard to the interpretation of variants. This increases the diagnostic rate by an additional 10-15%. In the present review, we detail the clinical steps involved in the diagnosis of genodermatoses, as well as the current DNA-based technologies available to clinicians. Herein, the intention is to facilitate a better understanding of the possibilities and limitations of these diagnostic technologies. In addition, this review could guide dermatologists through new emerging techniques, such as RNA-sequencing and its applications to familiarizing them with future techniques. Currently, this multi-omics approach is likely the best strategy designed to promote the diagnosis of patients with genodermatoses and discover new skin disease genes that could result in novel targeted therapies.
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Affiliation(s)
- Deborah Salik
- Department of Dermatology, CHU Saint-Pierre, CHU Brugmann and Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles, Brussels, Belgium
| | - Bertrand Richert
- Department of Dermatology, CHU Saint-Pierre, CHU Brugmann and Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles, Brussels, Belgium
| | - Guillaume Smits
- Department of Genetics, Hôpital Erasme, ULB Center of Human Genetics, Université Libre de Bruxelles (ULB), Brussels, Belgium.,Department of Genetics, Hôpital Universitaire des Enfants Reine Fabiola, ULB Center of Human Genetics Université Libre de Bruxelles (ULB), Brussels, Belgium.,Interuniversity Institute of Bioinformatics in Brussels, Université Libre de Bruxelles, Brussels, Belgium
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Koguchi-Yoshioka H, Nakano H, Akasaka E, Tanemura A, Katayama I, Sawamura D, Fujimoto M, Wataya-Kaneda M. Author reply to "WNT10A variant and severe scoliosis?". J Dermatol 2022; 49:e424-e425. [PMID: 35996881 DOI: 10.1111/1346-8138.16560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 08/08/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Hanako Koguchi-Yoshioka
- Department of Neurocutaneous Medicine, Division of Health Science, Graduate School of Medicine, Osaka University, Osaka, Japan.,Department of Dermatology, Course of Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hajime Nakano
- Department of Dermatology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Eijiro Akasaka
- Department of Dermatology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Atsushi Tanemura
- Department of Dermatology, Course of Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Ichiro Katayama
- Department of Dermatology, Course of Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Daisuke Sawamura
- Department of Dermatology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Course of Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Mari Wataya-Kaneda
- Department of Neurocutaneous Medicine, Division of Health Science, Graduate School of Medicine, Osaka University, Osaka, Japan.,Department of Dermatology, Course of Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
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Zhang Y, Lin Y, Zhang Y, Wang Y, Li Z, Zhu Y, Liu H, Ju W, Cui C, Chen M. Familial atrial myopathy in a large multigenerational heart-hand syndrome pedigree carrying an LMNA missense variant in rod 2B domain (p.R335W). Heart Rhythm 2021; 19:466-475. [PMID: 34808346 DOI: 10.1016/j.hrthm.2021.11.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/14/2021] [Accepted: 11/16/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND The literature on laminopathy with ventricular phenotype is extensive. However, the pathogenicity of LMNA variations in atrial lesions still lacks research. OBJECTIVE The purpose of this study was to characterize the atrial phenotypes and possible mechanisms in a large Chinese family with heart-hand syndrome carrying a LMNA missense variant in rod 2B domain (c.1003C>T p.R335W). METHODS Clinical characteristics were collected on the basis of the pedigree investigation. Comprehensive functional analyses, including molecular dynamic (MD) simulation, cellular, and animal functional assays, determined the pathogenicity in atrial myopathy. RESULTS In the pedigree investigation, 6 of 13 of the mutation carriers showed heterogeneous cardiac phenotypes and 8 carriers also had brachydactyly. In silico molecular dynamics simulations predicted increased binding energy of the R335W mutant lamin A. Atrial cardiomyocytes (HL-1, human induced pluripotent stem cell-derived atrial cardiomyocytes) expressing R335W showed abnormal nuclear morphology, compromised DNA repair, and dysfunctional contraction. Adult zebrafish expressing mutant lamin A showed increased P wave duration in the electrocardiogram, decreased peak A wave velocity in echocardiography, and atrial lesions under the transmission electron microscope. CONCLUSION LMNA p.R335W mutation leads to familial heart-hand syndrome characterized by an overlapping phenotype of prominent atrial lesions and brachydactyly. The unstable lamin dimerization and impaired DNA repair are possible mechanisms underlying cardiac phenotypes. Our findings consolidated the genetic role in the course of atrial arrhythmias and cardiac aging, which is helpful in the diagnosis and treatment of cardiac laminopathy.
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Affiliation(s)
- Yike Zhang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yongping Lin
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yanjuan Zhang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yuanqing Wang
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Zhaomin Li
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yue Zhu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hailei Liu
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Weizhu Ju
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chang Cui
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Minglong Chen
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China.
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Coppedè F. Mutations Involved in Premature-Ageing Syndromes. APPLICATION OF CLINICAL GENETICS 2021; 14:279-295. [PMID: 34103969 PMCID: PMC8180271 DOI: 10.2147/tacg.s273525] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/17/2021] [Indexed: 12/12/2022]
Abstract
Premature-ageing syndromes are a heterogeneous group of rare genetic disorders resembling features of accelerated ageing and resulting from mutations in genes coding for proteins required for nuclear lamina architecture, DNA repair and maintenance of genome stability, mitochondrial function and other cellular processes. Hutchinson–Gilford progeria syndrome (HGPS) and Werner syndrome (WS) are two of the best-characterized progeroid syndromes referred to as childhood- and adulthood-progeria, respectively. This article provides an updated overview of the mutations leading to HGPS, WS, and to the spectrum of premature-ageing laminopathies ranging in severity from congenital restrictive dermopathy (RD) to adult-onset atypical WS, including RD-like laminopathies, typical and atypical HGPS, more and less severe forms of mandibuloacral dysplasia (MAD), Néstor-Guillermo progeria syndrome (NGPS), atypical WS, and atypical progeroid syndromes resembling features of HGPS and/or MAD but resulting from impaired DNA repair or mitochondrial functions, including mandibular hypoplasia, deafness, progeroid features, and lipodystrophy (MDPL) syndrome and mandibuloacral dysplasia associated to MTX2 (MADaM). The overlapping signs and symptoms among different premature-ageing syndromes, resulting from both a large genetic heterogeneity and shared pathological pathways underlying these conditions, require an expert clinical evaluation in specialized centers paralleled by next-generation sequencing of panels of genes involved in these disorders in order to establish as early as possible an accurate clinical and molecular diagnosis for a proper patient management.
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Affiliation(s)
- Fabio Coppedè
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, Pisa, Italy
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