1
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Yang D, Lai A, Davies A, Janssen AF, Ellis MO, Larrieu D. A novel role for CSA in the regulation of nuclear envelope integrity: uncovering a non-canonical function. Life Sci Alliance 2024; 7:e202402745. [PMID: 39209536 PMCID: PMC11361374 DOI: 10.26508/lsa.202402745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 08/14/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024] Open
Abstract
Cockayne syndrome (CS) is a premature ageing condition characterized by microcephaly, growth failure, and neurodegeneration. It is caused by mutations in ERCC6 or ERCC8 encoding for Cockayne syndrome B (CSB) and A (CSA) proteins, respectively. CSA and CSB have well-characterized roles in transcription-coupled nucleotide excision repair, responsible for removing bulky DNA lesions, including those caused by UV irradiation. Here, we report that CSA dysfunction causes defects in the nuclear envelope (NE) integrity. NE dysfunction is characteristic of progeroid disorders caused by a mutation in NE proteins, such as Hutchinson-Gilford progeria syndrome. However, it has never been reported in Cockayne syndrome. We observed CSA dysfunction affected LEMD2 incorporation at the NE and increased actin stress fibers that contributed to enhanced mechanical stress to the NE. Altogether, these led to NE abnormalities associated with the activation of the cGAS/STING pathway. Targeting the linker of the nucleoskeleton and cytoskeleton complex was sufficient to rescue these phenotypes. This work reveals NE dysfunction in a progeroid syndrome caused by mutations in a DNA damage repair protein, reinforcing the connection between NE deregulation and ageing.
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Affiliation(s)
- Denny Yang
- https://ror.org/013meh722 Department of Pharmacology, University of Cambridge, Cambridge, UK
- UK Dementia Research Institute, Island Research Building, Cambridge, UK
| | - Austin Lai
- Cambridge Institute for Medical Research, The Keith Peters Building, Cambridge, UK
| | - Amelie Davies
- https://ror.org/013meh722 Department of Pharmacology, University of Cambridge, Cambridge, UK
| | - Anne Fj Janssen
- https://ror.org/013meh722 Department of Pharmacology, University of Cambridge, Cambridge, UK
- Cambridge Institute for Medical Research, The Keith Peters Building, Cambridge, UK
| | - Matthew O Ellis
- UK Dementia Research Institute, Island Research Building, Cambridge, UK
| | - Delphine Larrieu
- https://ror.org/013meh722 Department of Pharmacology, University of Cambridge, Cambridge, UK
- Cambridge Institute for Medical Research, The Keith Peters Building, Cambridge, UK
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2
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Shaulson ED, Cohen AA, Picard M. The brain-body energy conservation model of aging. NATURE AGING 2024; 4:1354-1371. [PMID: 39379694 DOI: 10.1038/s43587-024-00716-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 09/04/2024] [Indexed: 10/10/2024]
Abstract
Aging involves seemingly paradoxical changes in energy metabolism. Molecular damage accumulation increases cellular energy expenditure, yet whole-body energy expenditure remains stable or decreases with age. We resolve this apparent contradiction by positioning the brain as the mediator and broker in the organismal energy economy. As somatic tissues accumulate damage over time, costly intracellular stress responses are activated, causing aging or senescent cells to secrete cytokines that convey increased cellular energy demand (hypermetabolism) to the brain. To conserve energy in the face of a shrinking energy budget, the brain deploys energy conservation responses, which suppress low-priority processes, producing fatigue, physical inactivity, blunted sensory capacities, immune alterations and endocrine 'deficits'. We term this cascade the brain-body energy conservation (BEC) model of aging. The BEC outlines (1) the energetic cost of cellular aging, (2) how brain perception of senescence-associated hypermetabolism may drive the phenotypic manifestations of aging and (3) energetic principles underlying the modifiability of aging trajectories by stressors and geroscience interventions.
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Affiliation(s)
- Evan D Shaulson
- Department of Psychiatry, Division of Behavioral Medicine, College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA
| | - Alan A Cohen
- Robert N. Butler Columbia Aging Center, Columbia University Mailman School of Public Health, New York, NY, USA
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Martin Picard
- Department of Psychiatry, Division of Behavioral Medicine, College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA.
- Robert N. Butler Columbia Aging Center, Columbia University Mailman School of Public Health, New York, NY, USA.
- Department of Neurology, H. Houston Merritt Center for Neuromuscular and Mitochondrial Disorders, Columbia Translational Neuroscience Initiative, College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA.
- New York State Psychiatric Institute, New York, NY, USA.
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3
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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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4
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Cvekl A, Vijg J. Aging of the eye: Lessons from cataracts and age-related macular degeneration. Ageing Res Rev 2024; 99:102407. [PMID: 38977082 DOI: 10.1016/j.arr.2024.102407] [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: 03/11/2024] [Revised: 06/18/2024] [Accepted: 07/01/2024] [Indexed: 07/10/2024]
Abstract
Aging is the greatest risk factor for chronic human diseases, including many eye diseases. Geroscience aims to understand the effects of the aging process on these diseases, including the genetic, molecular, and cellular mechanisms that underlie the increased risk of disease over the lifetime. Understanding of the aging eye increases general knowledge of the cellular physiology impacted by aging processes at various biological extremes. Two major diseases, age-related cataract and age-related macular degeneration (AMD) are caused by dysfunction of the lens and retina, respectively. Lens transparency and light refraction are mediated by lens fiber cells lacking nuclei and other organelles, which provides a unique opportunity to study a single aging hallmark, i.e., loss of proteostasis, within an environment of limited metabolism. In AMD, local dysfunction of the photoreceptors/retinal pigmented epithelium/Bruch's membrane/choriocapillaris complex in the macula leads to the loss of photoreceptors and eventually loss of central vision, and is driven by nearly all the hallmarks of aging and shares features with Alzheimer's disease, Parkinson's disease, cardiovascular disease, and diabetes. The aging eye can function as a model for studying basic mechanisms of aging and, vice versa, well-defined hallmarks of aging can be used as tools to understand age-related eye disease.
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Affiliation(s)
- Ales Cvekl
- Departments of Genetics and Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
| | - Jan Vijg
- Departments of Genetics and Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
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5
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Velleuer E, Carlberg C. A Nutrigenomic View on the Premature-Aging Disease Fanconi Anemia. Nutrients 2024; 16:2271. [PMID: 39064714 PMCID: PMC11280142 DOI: 10.3390/nu16142271] [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: 06/30/2024] [Revised: 07/11/2024] [Accepted: 07/13/2024] [Indexed: 07/28/2024] Open
Abstract
Fanconi anemia, a rare disorder with an incidence of 1 in 300,000, is caused by mutations in FANC genes, which affect the repair of DNA interstrand crosslinks. The disease is characterized by congenital malformations, bone marrow failure within the first decade of life, and recurrent squamous cell carcinomas of the oral cavity, esophagus, and anogenital regions starting around age 20. In this review, we propose that Fanconi anemia should be considered a premature-aging syndrome. Interestingly, the onset and severity of the life-limiting clinical features of Fanconi anemia can be influenced by lifestyle choices, such as a healthy diet and physical activity. These factors shape the epigenetic status of at-risk cell types and enhance the competence of the immune system through nutritional signaling. Fanconi anemia may serve as a model for understanding the aging process in the general population, addressing research gaps in its clinical presentation and suggesting prevention strategies. Additionally, we will discuss how the balance of genetic and environmental risk factors-affecting both cancer onset and the speed of aging-is interlinked with signal transduction by dietary molecules. The underlying nutrigenomic principles will offer guidance for healthy aging in individuals with Fanconi anemia as well as for the general population.
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Affiliation(s)
- Eunike Velleuer
- Department for Cytopathology, Heinrich-Heine-University Düsseldorf, D-40225 Düsseldorf, Germany;
- Department for Pediatric Hemato-Oncology, Helios Children’s Hospital, D-47805 Krefeld, Germany
| | - Carsten Carlberg
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, PL-10-748 Olsztyn, Poland
- School of Medicine, Institute of Biomedicine, University of Eastern Finland, FI-70211 Kuopio, Finland
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6
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Postberg J, Schubert MT, Nin V, Wagner L, Piefke M. A perspective on epigenomic aging processes in the human brain and their plasticity in patients with mental disorders - a systematic review. Neurogenetics 2024:10.1007/s10048-024-00771-x. [PMID: 38967831 DOI: 10.1007/s10048-024-00771-x] [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: 03/15/2024] [Accepted: 06/28/2024] [Indexed: 07/06/2024]
Abstract
The debate surrounding nature versus nurture remains a central question in neuroscience, psychology, and in psychiatry, holding implications for both aging processes and the etiology of mental illness. Epigenetics can serve as a bridge between genetic predisposition and environmental influences, thus offering a potential avenue for addressing these questions. Epigenetic clocks, in particular, offer a theoretical framework for measuring biological age based on DNA methylation signatures, enabling the identification of disparities between biological and chronological age. This structured review seeks to consolidate current knowledge regarding the relationship between mental disorders and epigenetic age within the brain. Through a comprehensive literature search encompassing databases such as EBSCO, PubMed, and ClinicalTrials.gov, relevant studies were identified and analyzed. Studies that met inclusion criteria were scrutinized, focusing on those with large sample sizes, analyses of both brain tissue and blood samples, investigation of frontal cortex markers, and a specific emphasis on schizophrenia and depressive disorders. Our review revealed a paucity of significant findings, yet notable insights emerged from studies meeting specific criteria. Studies characterized by extensive sample sizes, analysis of brain tissue and blood samples, assessment of frontal cortex markers, and a focus on schizophrenia and depressive disorders yielded particularly noteworthy results. Despite the limited number of significant findings, these studies shed light on the complex interplay between epigenetic aging and mental illness. While the current body of literature on epigenetic aging in mental disorders presents limited significant findings, it underscores the importance of further research in this area. Future studies should prioritize large sample sizes, comprehensive analyses of brain tissue and blood samples, exploration of specific brain regions such as the frontal cortex, and a focus on key mental disorders. Such endeavors will contribute to a deeper understanding of the relationship between epigenetic aging and mental illness, potentially informing novel diagnostic and therapeutic approaches.
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Affiliation(s)
- Jan Postberg
- Clinical Molecular Genetics and Epigenetics, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-Str. 50, 58448, Witten, Germany.
- Centre for Biomedical Education & Research (ZBAF), Witten/Herdecke University, Alfred-Herrhausen-Str. 50, 58448, Witten, Germany.
| | - Michèle Tina Schubert
- Neurobiology and Genetics of Behavior, Department of Psychology and Psychotherapy, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-Str. 50, 58448, Witten, Germany
| | - Vincent Nin
- Neurobiology and Genetics of Behavior, Department of Psychology and Psychotherapy, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-Str. 50, 58448, Witten, Germany
| | - Lukas Wagner
- Neurobiology and Genetics of Behavior, Department of Psychology and Psychotherapy, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-Str. 50, 58448, Witten, Germany
| | - Martina Piefke
- Centre for Biomedical Education & Research (ZBAF), Witten/Herdecke University, Alfred-Herrhausen-Str. 50, 58448, Witten, Germany
- Neurobiology and Genetics of Behavior, Department of Psychology and Psychotherapy, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-Str. 50, 58448, Witten, Germany
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7
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Boyajian JL, Islam P, Abosalha A, Schaly S, Thareja R, Kassab A, Arora K, Santos M, Shum-Tim C, Prakash S. Probiotics, prebiotics, synbiotics and other microbiome-based innovative therapeutics to mitigate obesity and enhance longevity via the gut-brain axis. MICROBIOME RESEARCH REPORTS 2024; 3:29. [PMID: 39421246 PMCID: PMC11480732 DOI: 10.20517/mrr.2024.05] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/18/2024] [Accepted: 05/11/2024] [Indexed: 10/19/2024]
Abstract
The global prevalence of obesity currently exceeds 1 billion people and is accompanied by an increase in the aging population. Obesity and aging share many hallmarks and are leading risk factors for cardiometabolic disease and premature death. Current anti-obesity and pro-longevity pharmacotherapies are limited by side effects, warranting the development of novel therapies. The gut microbiota plays a major role in human health and disease, with a dysbiotic composition evident in obese and aged individuals. The bidirectional communication system between the gut and the central nervous system, known as the gut-brain axis, may link obesity to unhealthy aging. Modulating the gut with microbiome-targeted therapies, such as biotics, is a novel strategy to treat and/or manage obesity and promote longevity. Biotics represent material derived from living or once-living organisms, many of which have therapeutic effects. Pre-, pro-, syn- and post-biotics may beneficially modulate gut microbial composition and function to improve obesity and the aging process. However, the investigation of biotics as next-generation therapeutics has only just begun. Further research is needed to identify therapeutic biotics and understand their mechanisms of action. Investigating the function of the gut-brain axis in obesity and aging may lead to novel therapeutic strategies for obese, aged and comorbid (e.g., sarcopenic obese) patient populations. This review discusses the interrelationship between obesity and aging, with a particular emphasis on the gut microbiome, and presents biotics as novel therapeutic agents for obesity, aging and related disease states.
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Affiliation(s)
- Jacqueline L. Boyajian
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
| | - Paromita Islam
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
| | - Ahmed Abosalha
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
- Pharmaceutical Technology Department, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt
| | - Sabrina Schaly
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
| | - Rahul Thareja
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
| | - Amal Kassab
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
| | - Karan Arora
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
| | - Madison Santos
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
| | - Cedrique Shum-Tim
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
| | - Satya Prakash
- Biomedical Technology and Cell Therapy Research Laboratory, Department of Biomedical Engineering, Faculty of Medicine and Health Sciences, McGill University, Montreal H3A 2B4, Quebec, Canada
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8
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Bierhoff H. [Genetics, epigenetics, and environmental factors in life expectancy-What role does nature-versus-nurture play in aging?]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2024; 67:521-527. [PMID: 38637469 PMCID: PMC11093831 DOI: 10.1007/s00103-024-03873-x] [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: 11/01/2023] [Accepted: 03/20/2024] [Indexed: 04/20/2024]
Abstract
In Germany and worldwide, the average age of the population is continuously rising. With this general increase in chronological age, the focus on biological age, meaning the actual health and fitness status, is becoming more and more important. The key question is to what extent the age-related decline in fitness is genetically predetermined or malleable by environmental factors and lifestyle.Many epigenetic studies in aging research have provided interesting insights in this nature-versus-nurture debate. In most model organisms, aging is associated with specific epigenetic changes, which can be countered by certain interventions like moderate caloric restriction or increased physical activity. Since these interventions also have positive effects on lifespan and health, epigenetics appears to be the interface between environmental factors and the aging process. This notion is supported by the fact that an epigenetic drift occurs through the life course of identical twins, which is related to the different manifestations of aging symptoms. Furthermore, biological age can be determined with high precision based on DNA methylation patterns, further emphasizing the importance of epigenetics in aging.This article provides an overview of the importance of genetic and epigenetic parameters for life expectancy. A major focus will be on the possibilities of maintaining a young epigenome through lifestyle and environmental factors, thereby slowing down biological aging.
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Affiliation(s)
- Holger Bierhoff
- Institut für Biochemie und Biophysik, Friedrich-Schiller-Universität Jena, Hans-Knöll-Straße 2, 07745, Jena, Deutschland.
- Leibniz-Institut für Alternsforschung - Fritz-Lipmann-Institut (FLI), Jena, Deutschland.
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9
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Kopp J, Koch LA, Lyubenova H, Küchler O, Holtgrewe M, Ivanov A, Dubourg C, Launay E, Brachs S, Mundlos S, Ehmke N, Seelow D, Fradin M, Kornak U, Fischer-Zirnsak B. Loss-of-function variants affecting the STAGA complex component SUPT7L cause a developmental disorder with generalized lipodystrophy. Hum Genet 2024; 143:683-694. [PMID: 38592547 PMCID: PMC11098864 DOI: 10.1007/s00439-024-02669-y] [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: 11/30/2023] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
Generalized lipodystrophy is a feature of various hereditary disorders, often leading to a progeroid appearance. In the present study we identified a missense and a frameshift variant in a compound heterozygous state in SUPT7L in a boy with intrauterine growth retardation, generalized lipodystrophy, and additional progeroid features. SUPT7L encodes a component of the transcriptional coactivator complex STAGA. By transcriptome sequencing, we showed the predicted missense variant to cause aberrant splicing, leading to exon truncation and thereby to a complete absence of SUPT7L in dermal fibroblasts. In addition, we found altered expression of genes encoding DNA repair pathway components. This pathway was further investigated and an increased rate of DNA damage was detected in proband-derived fibroblasts and genome-edited HeLa cells. Finally, we performed transient overexpression of wildtype SUPT7L in both cellular systems, which normalizes the number of DNA damage events. Our findings suggest SUPT7L as a novel disease gene and underline the link between genome instability and progeroid phenotypes.
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Affiliation(s)
- Johannes Kopp
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, 13353, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
- Institute of Chemistry and Biochemistry, Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Leonard A Koch
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, 13353, Berlin, Germany
| | - Hristiana Lyubenova
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, 13353, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
| | - Oliver Küchler
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, 13353, Berlin, Germany
- Exploratory Diagnostic Sciences, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Manuel Holtgrewe
- Core Unit Bioinformatics (CUBI), Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Andranik Ivanov
- Core Unit Bioinformatics (CUBI), Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Christele Dubourg
- Service de Génétique Moléculaire et Génomique, CHU, Rennes, F-35033, France
- Univercity Rennes, CNRS, INSERM, IGDR, UMR 6290, ERL U1305, Rennes, F-35000, France
| | - Erika Launay
- Service de Cytogénétique et Biologie cellulaire, Hôpital Pontchaillou - CHU Rennes, 2 rue Henri Le Guilloux - Rennes cedex 9, France, Rennes, F-35033, France
| | - Sebastian Brachs
- Department of Endocrinology and Metabolism, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
- German Centre for Cardiovascular Research, partner site Berlin, Berlin, Germany
| | - Stefan Mundlos
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, 13353, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
| | - Nadja Ehmke
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, 13353, Berlin, Germany
- Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Dominik Seelow
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, 13353, Berlin, Germany
- Exploratory Diagnostic Sciences, Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Mélanie Fradin
- Service de Génétique Clinique, Centre Référence Déficiences Intellectuelles CRDI, Hôpital Sud - CHU Rennes, 16 boulevard de Bulgarie - BP 90347, Rennes cedex 2, Rennes, F-35203, France
- Service de Génétique, CH Saint Brieuc, St Brieuc, 22000, France
| | - Uwe Kornak
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, 13353, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Björn Fischer-Zirnsak
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, 13353, Berlin, Germany.
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany.
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10
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Przyklenk M, Karmacharya S, Bonasera D, Pasanen-Zentz AL, Kmoch S, Paulsson M, Wagener R, Liccardi G, Schiavinato A. ANTXR1 deficiency promotes fibroblast senescence: implications for GAPO syndrome as a progeroid disorder. Sci Rep 2024; 14:9321. [PMID: 38653789 PMCID: PMC11039612 DOI: 10.1038/s41598-024-59901-y] [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: 12/29/2023] [Accepted: 04/16/2024] [Indexed: 04/25/2024] Open
Abstract
ANTXR1 is one of two cell surface receptors mediating the uptake of the anthrax toxin into cells. Despite substantial research on its role in anthrax poisoning and a proposed function as a collagen receptor, ANTXR1's physiological functions remain largely undefined. Pathogenic variants in ANTXR1 lead to the rare GAPO syndrome, named for its four primary features: Growth retardation, Alopecia, Pseudoanodontia, and Optic atrophy. The disease is also associated with a complex range of other phenotypes impacting the cardiovascular, skeletal, pulmonary and nervous systems. Aberrant accumulation of extracellular matrix components and fibrosis are considered to be crucial components in the pathogenesis of GAPO syndrome, contributing to the shortened life expectancy of affected individuals. Nonetheless, the specific mechanisms connecting ANTXR1 deficiency to the clinical manifestations of GAPO syndrome are largely unexplored. In this study, we present evidence that ANTXR1 deficiency initiates a senescent phenotype in human fibroblasts, correlating with defects in nuclear architecture and actin dynamics. We provide novel insights into ANTXR1's physiological functions and propose GAPO syndrome to be reconsidered as a progeroid disorder highlighting an unexpected role for an integrin-like extracellular matrix receptor in human aging.
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Affiliation(s)
- Matthias Przyklenk
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Shreya Karmacharya
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Debora Bonasera
- Genetic Instability, Cell Death and Inflammation Laboratory, Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Arthur-Lauri Pasanen-Zentz
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Stanislav Kmoch
- Research Unit of Rare Diseases, Department of Pediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Mats Paulsson
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Raimund Wagener
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Gianmaria Liccardi
- Genetic Instability, Cell Death and Inflammation Laboratory, Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Alvise Schiavinato
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany.
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.
- Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
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11
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Arvanitaki ES, Goulielmaki E, Gkirtzimanaki K, Niotis G, Tsakani E, Nenedaki E, Rouska I, Kefalogianni M, Xydias D, Kalafatakis I, Psilodimitrakopoulos S, Karagogeos D, Schumacher B, Stratakis E, Garinis GA. Microglia-derived extracellular vesicles trigger age-related neurodegeneration upon DNA damage. Proc Natl Acad Sci U S A 2024; 121:e2317402121. [PMID: 38635632 PMCID: PMC11047102 DOI: 10.1073/pnas.2317402121] [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: 10/09/2023] [Accepted: 03/22/2024] [Indexed: 04/20/2024] Open
Abstract
DNA damage and neurodegenerative disorders are intimately linked but the underlying mechanism remains elusive. Here, we show that persistent DNA lesions in tissue-resident macrophages carrying an XPF-ERCC1 DNA repair defect trigger neuroinflammation and neuronal cell death in mice. We find that microglia accumulate dsDNAs and chromatin fragments in the cytosol, which are sensed thereby stimulating a viral-like immune response in Er1Cx/- and naturally aged murine brain. Cytosolic DNAs are packaged into extracellular vesicles (EVs) that are released from microglia and discharge their dsDNA cargo into IFN-responsive neurons triggering cell death. To remove cytosolic dsDNAs and prevent inflammation, we developed targeting EVs to deliver recombinant DNase I to Er1Cx/- brain microglia in vivo. We show that EV-mediated elimination of cytosolic dsDNAs is sufficient to prevent neuroinflammation, reduce neuronal apoptosis, and delay the onset of neurodegenerative symptoms in Er1Cx/- mice. Together, our findings unveil a causal mechanism leading to neuroinflammation and provide a rationalized therapeutic strategy against age-related neurodegeneration.
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Affiliation(s)
- Ermioni S. Arvanitaki
- Department of Biology, University of Crete, HeraklionGR71409, Crete, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
| | - Evi Goulielmaki
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
| | - Katerina Gkirtzimanaki
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
| | - George Niotis
- Department of Biology, University of Crete, HeraklionGR71409, Crete, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
| | - Edisona Tsakani
- Department of Biology, University of Crete, HeraklionGR71409, Crete, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
| | - Electra Nenedaki
- Department of Biology, University of Crete, HeraklionGR71409, Crete, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
| | - Iliana Rouska
- Department of Biology, University of Crete, HeraklionGR71409, Crete, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
| | - Mary Kefalogianni
- Department of Physics, University of Crete, HeraklionGR71003, Crete, Greece
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, HeraklionGR71110, Crete, Greece
| | - Dionysios Xydias
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, HeraklionGR71110, Crete, Greece
- Materials Science and Technology Department, University of Crete, HeraklionGR70013, Crete, Greece
| | - Ilias Kalafatakis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
- Medical School, Division of Basic Sciences, University of Crete, HeraklionGR71003, Crete, Greece
| | - Sotiris Psilodimitrakopoulos
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, HeraklionGR71110, Crete, Greece
| | - Domna Karagogeos
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
- Medical School, Division of Basic Sciences, University of Crete, HeraklionGR71003, Crete, Greece
| | - Björn Schumacher
- Institute for Genome Stability in Ageing and Disease, Medical Faculty, University and University Hospital of Cologne, Cologne50931, Germany
- Cologne Excellence Cluster for Cellular Stress Responses in Ageing-Associated Diseases (CECAD), Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne50931, Germany
| | - Emmanuel Stratakis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, HeraklionGR71110, Crete, Greece
| | - George A. Garinis
- Department of Biology, University of Crete, HeraklionGR71409, Crete, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, HeraklionGR70013, Crete, Greece
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12
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Rangu SA, Oza VS. Poliosis, hair pigment dilution, and premature graying of the hair: A diagnostic approach in pediatric patients and review of the literature. Pediatr Dermatol 2024; 41:197-203. [PMID: 38156748 DOI: 10.1111/pde.15498] [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: 05/08/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024]
Abstract
Poliosis is defined as the absence of melanin in hair, and hair graying typically occurs with hair melanin reduction. Poliosis can occur at any age but presents in childhood in certain genetic and acquired conditions, with many families seeking evaluation from a pediatric dermatologist. Poliosis presents as white hair typically restricted to a certain location of the scalp. Children may also present with a reduction of expected hair pigmentation, referred to as pigment dilution, or the development of hair graying. This review aims to provide a streamlined diagnostic approach for pediatric dermatologists when presented with these hair findings. Poliosis should be recognized as a potential diagnostic feature or initial sign in many syndromes and thus can guide clinicians in diagnosing and managing conditions earlier in a patient's care. Since many of the genetic and acquired conditions that present with poliosis or hair pigment dilution have extracutaneous manifestations, early diagnosis is vital in establishing multidisciplinary care.
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Affiliation(s)
- Sneha A Rangu
- Albert Einstein College of Medicine, New York, New York, USA
| | - Vikash S Oza
- The Ronald O. Perelman Department of Dermatology, NYU Grossman School of Medicine, New York, New York, USA
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13
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Zayoud K, Chikhaoui A, Kraoua I, Tebourbi A, Najjar D, Ayari S, Safra I, Kraiem I, Turki I, Menif S, Yacoub-Youssef H. Immunity in the Progeroid Model of Cockayne Syndrome: Biomarkers of Pathological Aging. Cells 2024; 13:402. [PMID: 38474366 DOI: 10.3390/cells13050402] [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: 12/26/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 03/14/2024] Open
Abstract
Cockayne syndrome (CS) is a rare autosomal recessive disorder that affects the DNA repair process. It is a progeroid syndrome predisposing patients to accelerated aging and to increased susceptibility to respiratory infections. Here, we studied the immune status of CS patients to determine potential biomarkers associated with pathological aging. CS patients, as well as elderly and young, healthy donors, were enrolled in this study. Complete blood counts for patients and donors were assessed, immune cell subsets were analyzed using flow cytometry, and candidate cytokines were analyzed via multi-analyte ELISArray kits. In CS patients, we noticed a high percentage of lymphocytes, an increased rate of intermediate and non-classical monocytes, and a high level of pro-inflammatory cytokine IL-8. In addition, we identified an increased rate of particular subtypes of T Lymphocyte CD8+ CD28- CD27-, which are senescent T cells. Thus, an inflammatory state was found in CS patients that is similar to that observed in the elderly donors and is associated with an immunosenescence status in both groups. This could explain the CS patients' increased susceptibility to infections, which is partly due to an aging-associated inflammation process.
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Affiliation(s)
- Khouloud Zayoud
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia
- Faculty of Sciences of Bizerte, Bizerte 7021, Tunisia
| | - Asma Chikhaoui
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia
| | - Ichraf Kraoua
- Department of Neuropediatrics, National Institute of Neurology Mongi Ben Hamida, Tunis 1007, Tunisia
| | - Anis Tebourbi
- Orthopedic and Trauma Surgery Department, Mongi Slim Hospital, La Marsa 2070, Tunisia
| | - Dorra Najjar
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia
| | - Saker Ayari
- Orthopedic and Trauma Surgery Department, Mongi Slim Hospital, La Marsa 2070, Tunisia
| | - Ines Safra
- Laboratory of Molecular and Cellular Hematology (LR16IPT07), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia
| | - Imen Kraiem
- Laboratory of Molecular and Cellular Hematology (LR16IPT07), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia
| | - Ilhem Turki
- Department of Neuropediatrics, National Institute of Neurology Mongi Ben Hamida, Tunis 1007, Tunisia
| | - Samia Menif
- Laboratory of Molecular and Cellular Hematology (LR16IPT07), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia
| | - Houda Yacoub-Youssef
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia
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14
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Worm C, Schambye MER, Mkrtchyan GV, Veviorskiy A, Shneyderman A, Ozerov IV, Zhavoronkov A, Bakula D, Scheibye-Knudsen M. Defining the progeria phenome. Aging (Albany NY) 2024; 16:2026-2046. [PMID: 38345566 PMCID: PMC10911340 DOI: 10.18632/aging.205537] [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: 08/04/2023] [Accepted: 11/17/2023] [Indexed: 02/22/2024]
Abstract
Progeroid disorders are a heterogenous group of rare and complex hereditary syndromes presenting with pleiotropic phenotypes associated with normal aging. Due to the large variation in clinical presentation the diseases pose a diagnostic challenge for clinicians which consequently restricts medical research. To accommodate the challenge, we compiled a list of known progeroid syndromes and calculated the mean prevalence of their associated phenotypes, defining what we term the 'progeria phenome'. The data were used to train a support vector machine that is available at https://www.mitodb.com and able to classify progerias based on phenotypes. Furthermore, this allowed us to investigate the correlation of progeroid syndromes and syndromes with various pathogenesis using hierarchical clustering algorithms and disease networks. We detected that ataxia-telangiectasia like disorder 2, spastic paraplegia 49 and Meier-Gorlin syndrome display strong association to progeroid syndromes, thereby implying that the syndromes are previously unrecognized progerias. In conclusion, our study has provided tools to evaluate the likelihood of a syndrome or patient being progeroid. This is a considerable step forward in our understanding of what constitutes a premature aging disorder and how to diagnose them.
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Affiliation(s)
- Cecilie Worm
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Denmark
| | | | - Garik V. Mkrtchyan
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Denmark
| | - Alexander Veviorskiy
- Insilico Medicine AI Limited, Level 6, Unit 08, Block A, IRENA HQ Building, Masdar City, Abu Dhabi, UAE
| | | | - Ivan V. Ozerov
- Insilico Medicine Hong Kong Limited, Science Park West Avenue, Hong Kong, China
| | - Alex Zhavoronkov
- Insilico Medicine AI Limited, Level 6, Unit 08, Block A, IRENA HQ Building, Masdar City, Abu Dhabi, UAE
- Insilico Medicine Hong Kong Limited, Science Park West Avenue, Hong Kong, China
| | - Daniela Bakula
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Denmark
| | - Morten Scheibye-Knudsen
- Center for Healthy Aging, Department of Cellular and Molecular Medicine, University of Copenhagen, Denmark
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15
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Tournoy TK, Moons P, Daelman B, De Backer J. Biological Age in Congenital Heart Disease-Exploring the Ticking Clock. J Cardiovasc Dev Dis 2023; 10:492. [PMID: 38132660 PMCID: PMC10743752 DOI: 10.3390/jcdd10120492] [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: 11/14/2023] [Revised: 12/08/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Over the past 50 years, there has been a major shift in age distribution of patients with congenital heart disease (CHD) thanks to significant advancements in medical and surgical treatment. Patients with CHD are, however, never cured and face unique challenges throughout their lives. In this review, we discuss the growing data suggesting accelerated aging in this population. Adults with CHD are more often and at a younger age confronted with age-related cardiovascular complications such as heart failure, arrhythmia, and coronary artery disease. These can be related to the original birth defect, complications of correction, or any residual defects. In addition, and less deductively, more systemic age-related complications are seen earlier, such as renal dysfunction, lung disease, dementia, stroke, and cancer. The occurrence of these complications at a younger age makes it imperative to further map out the aging process in patients across the spectrum of CHD. We review potential feasible markers to determine biological age and provide an overview of the current data. We provide evidence for an unmet need to further examine the aging paradigm as this stresses the higher need for care and follow-up in this unique, newly aging population. We end by exploring potential approaches to improve lifespan care.
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Affiliation(s)
- Tijs K. Tournoy
- Department of Cardiology, Ghent University Hospital, 9000 Ghent, Belgium;
| | - Philip Moons
- KU Leuven Department of Public Health and Primary Care, University of Leuven, 3000 Leuven, Belgium
- Institute of Health and Care Sciences, University of Gothenburg, 405 30 Gothenburg, Sweden
- Department of Pediatrics and Child Health, University of Cape Town, Cape Town 7700, South Africa
| | - Bo Daelman
- KU Leuven Department of Public Health and Primary Care, University of Leuven, 3000 Leuven, Belgium
| | - Julie De Backer
- Department of Cardiology, Ghent University Hospital, 9000 Ghent, Belgium;
- Center for Medical Genetics, Ghent University Hospital, 9000 Ghent, Belgium
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16
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Wang Y, Gao T, Wang B. Application of mesenchymal stem cells for anti-senescence and clinical challenges. Stem Cell Res Ther 2023; 14:260. [PMID: 37726805 PMCID: PMC10510299 DOI: 10.1186/s13287-023-03497-z] [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: 07/25/2023] [Accepted: 09/13/2023] [Indexed: 09/21/2023] Open
Abstract
Senescence is a hot topic nowadays, which shows the accumulation of senescent cells and inflammatory factors, leading to the occurrence of various senescence-related diseases. Although some methods have been identified to partly delay senescence, such as strengthening exercise, restricting diet, and some drugs, these only slow down the process of senescence and cannot fundamentally delay or even reverse senescence. Stem cell-based therapy is expected to be a potential effective way to alleviate or cure senescence-related disorders in the coming future. Mesenchymal stromal cells (MSCs) are the most widely used cell type in treating various diseases due to their potentials of self-replication and multidirectional differentiation, paracrine action, and immunoregulatory effects. Some biological characteristics of MSCs can be well targeted at the pathological features of aging. Therefore, MSC-based therapy is also a promising strategy to combat senescence-related diseases. Here we review the recent progresses of MSC-based therapies in the research of age-related diseases and the challenges in clinical application, proving further insight and reference for broad application prospects of MSCs in effectively combating senesce in the future.
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Affiliation(s)
- Yaping Wang
- Clinical Stem Cell Center, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210008, People's Republic of China
- Clinical Stem Cell Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China
| | - Tianyun Gao
- Clinical Stem Cell Center, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210008, People's Republic of China
| | - Bin Wang
- Clinical Stem Cell Center, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210008, People's Republic of China.
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17
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Ghosh Chowdhury S, Ray R, Karmakar P. Relating aging and autophagy: a new perspective towards the welfare of human health. EXCLI JOURNAL 2023; 22:732-748. [PMID: 37662706 PMCID: PMC10471842 DOI: 10.17179/excli2023-6300] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 07/24/2023] [Indexed: 09/05/2023]
Abstract
The most common factor that contributes to aging is the loss of proteostasis, resulting in an excess amount of non-functional/damaged proteins. These proteins lead to various age-associated phenotypes such as cellular senescence and dysfunction in the nutrient-sensing pathways. Despite the various factors that can contribute to aging, it is still a process that can be changed. According to recent advances in the field of biology, the ability to alter the pathways that are involved in aging can improve the lifespan of a person. Autophagy is a process that helps in preserving survival during stressful situations, such as starvation. It is a common component of various anti-aging interventions, including those that target the insulin/IGF-1 and rapamycin signaling pathways. It has been shown that altered autophagy is a common feature of old age and its impaired regulation could have significant effects on the aging process. This review aims to look into the role of autophagy in aging and how it can be used to improve one's health.
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Affiliation(s)
| | - Rachayeeta Ray
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata-700032, India
| | - Parimal Karmakar
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata-700032, India
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18
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Cisneros B, García-Aguirre I, De Ita M, Arrieta-Cruz I, Rosas-Vargas H. Hutchinson-Gilford Progeria Syndrome: Cellular Mechanisms and Therapeutic Perspectives. Arch Med Res 2023; 54:102837. [PMID: 37390702 DOI: 10.1016/j.arcmed.2023.06.002] [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: 01/09/2023] [Revised: 05/26/2023] [Accepted: 06/14/2023] [Indexed: 07/02/2023]
Abstract
In humans, aging is characterized by a gradual decline of physical and psychological functions, with the concomitant onset of chronic-degenerative diseases, which ultimately lead to death. The study of Hutchinson-Gilford progeria syndrome (HGPS), a premature aging disorder that recapitulates several features of natural aging, has provided important insights into deciphering the aging process. The genetic origin of HGPS is a de novo point mutation in the LMNA gene that drives the synthesis of progerin, mutant version of lamin A. Progerin is aberrantly anchored to the nuclear envelope disrupting a plethora of molecular processes; nonetheless, how progerin exerts a cascade of deleterious alterations at the cellular and systemic levels is not fully understood. Over the past decade, the use of different cellular and animal models for HGPS has allowed the identification of the molecular mechanisms underlying HGPS, paving the way towards the development of therapeutic treatments against the disease. In this review, we present an updated overview of the biology of HGPS, including its clinical features, description of key cellular processes affected by progerin (nuclear morphology and function, nucleolar activity, mitochondrial function, protein nucleocytoplasmic trafficking and telomere homeostasis), as well as discussion of the therapeutic strategies under development.
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Affiliation(s)
- Bulmaro Cisneros
- Genetics and Molecular Biology Department, Research and Advanced Studies Center, National Polytechnical Institute, Mexico City, Mexico
| | - Ian García-Aguirre
- Genetics and Molecular Biology Department, Research and Advanced Studies Center, National Polytechnical Institute, Mexico City, Mexico; Bioengineering Department, School of Engineering and Sciences, Tecnológico de Monterrey, Mexico City, Mexico
| | - Marlon De Ita
- Genetics and Molecular Biology Department, Research and Advanced Studies Center, National Polytechnical Institute, Mexico City, Mexico; Medical Research Unit in Human Genetics, Pediatrics Hospital, 21st Century National Medical Center, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Isabel Arrieta-Cruz
- Basic Research Department, Research Direction, National Institute of Geriatrics, Ministry of Health, Mexico City, Mexico
| | - Haydeé Rosas-Vargas
- Medical Research Unit in Human Genetics, Pediatrics Hospital, 21st Century National Medical Center, Instituto Mexicano del Seguro Social, Mexico City, Mexico.
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19
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Araújo-Vilar D, Fernández-Pombo A, Cobelo-Gómez S, Castro AI, Sánchez-Iglesias S. Lipodystrophy-associated progeroid syndromes. Hormones (Athens) 2022; 21:555-571. [PMID: 35835948 DOI: 10.1007/s42000-022-00386-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 06/29/2022] [Indexed: 01/07/2023]
Abstract
With the exception of HIV-associated lipodystrophy, lipodystrophy syndromes are rare conditions characterized by a lack of adipose tissue, which is not generally recovered. As a consequence, an ectopic deposition of lipids frequently occurs, which usually leads to insulin resistance, atherogenic dyslipidemia, and hepatic steatosis. These disorders include certain accelerated aging syndromes or progeroid syndromes. Even though each of them has unique clinical features, most show common clinical characteristics that affect growth, skin and appendages, adipose tissue, muscle, and bone and, in some of them, life expectancy is reduced. Although the molecular bases of these Mendelian disorders are very diverse and not well known, genomic instability is frequent as a consequence of impairment of nuclear organization, chromatin structure, and DNA repair, as well as epigenetic dysregulation and mitochondrial dysfunction. In this review, the main clinical features of the lipodystrophy-associated progeroid syndromes will be described along with their causes and pathogenic mechanisms, and an attempt will be made to identify which of López-Otín's hallmarks of aging are present.
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Affiliation(s)
- David Araújo-Vilar
- UETeM-Molecular Pathology Group, Department of Psychiatry, Radiology, Public Health, Nursing and Medicine (Medicine Area), Center for Research in Molecular Medicine and Chronic Diseases (CIMUS)-IDIS, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain.
- Division of Endocrinology and Nutrition, University Clinical Hospital of Santiago de Compostela, 15706, Santiago de Compostela, Spain.
| | - Antía Fernández-Pombo
- UETeM-Molecular Pathology Group, Department of Psychiatry, Radiology, Public Health, Nursing and Medicine (Medicine Area), Center for Research in Molecular Medicine and Chronic Diseases (CIMUS)-IDIS, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
- Division of Endocrinology and Nutrition, University Clinical Hospital of Santiago de Compostela, 15706, Santiago de Compostela, Spain
| | - Silvia Cobelo-Gómez
- UETeM-Molecular Pathology Group, Department of Psychiatry, Radiology, Public Health, Nursing and Medicine (Medicine Area), Center for Research in Molecular Medicine and Chronic Diseases (CIMUS)-IDIS, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Ana I Castro
- Division of Endocrinology and Nutrition, University Clinical Hospital of Santiago de Compostela, 15706, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y la Nutrición (CIBERobn), 28029, Madrid, Spain
| | - Sofía Sánchez-Iglesias
- UETeM-Molecular Pathology Group, Department of Psychiatry, Radiology, Public Health, Nursing and Medicine (Medicine Area), Center for Research in Molecular Medicine and Chronic Diseases (CIMUS)-IDIS, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
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20
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Kornak U, Saha N, Keren B, Neumann A, Taylor Tavares AL, Piard J, Kopp J, Rodrigues Alves JG, Rodríguez de Los Santos M, El Choubassi N, Ehmke N, Jäger M, Spielmann M, Pantel JT, Lejeune E, Fauler B, Mielke T, Hecht J, Meierhofer D, Strom TM, Laugel V, Brice A, Mundlos S, Bertoli-Avella A, Bauer P, Heyd F, Boute O, Dupont J, Depienne C, Van Maldergem L, Fischer-Zirnsak B. Alternative splicing of BUD13 determines the severity of a developmental disorder with lipodystrophy and progeroid features. Genet Med 2022; 24:1927-1940. [PMID: 35670808 DOI: 10.1016/j.gim.2022.05.004] [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: 02/14/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 10/18/2022] Open
Abstract
PURPOSE In this study we aimed to identify the molecular genetic cause of a progressive multisystem disease with prominent lipodystrophy. METHODS In total, 5 affected individuals were investigated using exome sequencing. Dermal fibroblasts were characterized using RNA sequencing, proteomics, immunoblotting, immunostaining, and electron microscopy. Subcellular localization and rescue studies were performed. RESULTS We identified a lipodystrophy phenotype with a typical facial appearance, corneal clouding, achalasia, progressive hearing loss, and variable severity. Although 3 individuals showed stunted growth, intellectual disability, and died within the first decade of life (A1, A2, and A3), 2 are adults with normal intellectual development (A4 and A5). All individuals harbored an identical homozygous nonsense variant affecting the retention and splicing complex component BUD13. The nucleotide substitution caused alternative splicing of BUD13 leading to a stable truncated protein whose expression positively correlated with disease expression and life expectancy. In dermal fibroblasts, we found elevated intron retention, a global reduction of spliceosomal proteins, and nuclei with multiple invaginations, which were more pronounced in A1, A2, and A3. Overexpression of both BUD13 isoforms normalized the nuclear morphology. CONCLUSION Our results define a hitherto unknown syndrome and show that the alternative splice product converts a loss-of-function into a hypomorphic allele, thereby probably determining the severity of the disease and the survival of affected individuals.
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Affiliation(s)
- Uwe Kornak
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany.
| | - Namrata Saha
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Berlin-Brandenburg School for Regenerative Therapies, Charité-Universtitätsmedizin Berlin, Germany; Max Planck International Research Network on Aging, Max Planck Society, Rostock, Germany
| | - Boris Keren
- Department of Genetics, DMU BioGem, Assistance Publique - Hôpitaux de Paris, Hôpital Universitaire Pitié-Salpêtrière, Paris, France
| | - Alexander Neumann
- Laboratory of RNA Biochemistry, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany; Omiqa Bioinformatics, Berlin, Germany
| | - Ana Lisa Taylor Tavares
- East Anglian Medical Genetics Service, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom; Genomics England, London, United Kingdom
| | - Juliette Piard
- Centre de Génétique Humaine, Université de Franche-Comté, Besançon, France.
| | - Johannes Kopp
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Institute of Chemistry and Biochemistry, Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - João Guilherme Rodrigues Alves
- Serviço de Genética, Departamento de Pediatria, Hospital de Santa Maria, Centro Hospital Universitário Lisboa Norte, Lisboa, Portugal
| | - Miguel Rodríguez de Los Santos
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Berlin-Brandenburg School for Regenerative Therapies, Charité-Universtitätsmedizin Berlin, Germany
| | - Naji El Choubassi
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Nadja Ehmke
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Marten Jäger
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; BIH Genomics Core Unit, Berlin Institute of Health (BIH), Berlin, Germany
| | - Malte Spielmann
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Institute of Human Genetics, University of Lübeck, Lübeck, Germany
| | - Jean Tori Pantel
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Elodie Lejeune
- Department of Genetics, DMU BioGem, Assistance Publique - Hôpitaux de Paris, Hôpital Universitaire Pitié-Salpêtrière, Paris, France
| | - Beatrix Fauler
- Microscopy and Cryo-electron Microscopy Group, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Thorsten Mielke
- Microscopy and Cryo-electron Microscopy Group, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Jochen Hecht
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - David Meierhofer
- Mass-Spectrometry Facility, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Tim M Strom
- Institute of Human Genetics, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Vincent Laugel
- Service de Pédiatrie 1, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Laboratoire de Génétique Médicale, Institut de Génétique Médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Alexis Brice
- Department of Genetics, DMU BioGem, Assistance Publique - Hôpitaux de Paris, Hôpital Universitaire Pitié-Salpêtrière, Paris, France; Institut du Cerveau - Paris Brain Institute - ICM, Inserm, Centre National de la Recherche Scientifique, Hôpital Pitié-Salpêtrière, Sorbonne Université, Paris, France
| | - Stefan Mundlos
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | - Peter Bauer
- CENTOGENE GmbH, Rostock, Germany; Department of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, Rostock University Medical Center, Rostock, Germany
| | - Florian Heyd
- Laboratory of RNA Biochemistry, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Odile Boute
- Génétique Clinique, Centre Hospitalier Universitaire de Lille, Hôpital Jeanne de Flandre, Lille, France.
| | - Juliette Dupont
- Serviço de Genética, Departamento de Pediatria, Hospital de Santa Maria, Centro Hospital Universitário Lisboa Norte, Lisboa, Portugal.
| | - Christel Depienne
- Institut du Cerveau - Paris Brain Institute - ICM, Inserm, Centre National de la Recherche Scientifique, Hôpital Pitié-Salpêtrière, Sorbonne Université, Paris, France; Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Lionel Van Maldergem
- Centre de Génétique Humaine, Université de Franche-Comté, Besançon, France; Center of Clinical investigation 1431, National Institute of Health and Medical Research (INSERM), CHU, Besancon, France
| | - Björn Fischer-Zirnsak
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany.
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21
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Franco I, Revêchon G, Eriksson M. Challenges of proving a causal role of somatic mutations in the aging process. Aging Cell 2022; 21:e13613. [PMID: 35435316 PMCID: PMC9124308 DOI: 10.1111/acel.13613] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/25/2022] [Accepted: 04/03/2022] [Indexed: 12/21/2022] Open
Abstract
Aging is accompanied by the progressive accumulation of permanent changes to the genomic sequence, termed somatic mutations. Small mutations, including single‐base substitutions and insertions/deletions, are key determinants of the malignant transformations leading to cancer, but their role as initiators of other age‐related phenotypes is controversial. Here, we present recent advances in the study of somatic mutagenesis in aging tissues and posit that the current uncertainty about its causal effects in the aging process is due to technological and methodological weaknesses. We highlight classical and novel experimental systems, including premature aging syndromes, that could be used to model the increase of somatic mutation burden and understand its functional role. It is important that studies are designed to take into account the biological context and peculiarities of each tissue and that the downstream impact of somatic mutation accumulation is measured by methods able to resolve subtle cellular changes.
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Affiliation(s)
- Irene Franco
- Cystic Kidney Disorders Unit Division of Genetics and Cell Biology IRCCS Ospedale San Raffaele Milan Italy
| | - Gwladys Revêchon
- Department of Biosciences and Nutrition Center for Innovative Medicine Karolinska Institutet Huddinge Sweden
| | - Maria Eriksson
- Department of Biosciences and Nutrition Center for Innovative Medicine Karolinska Institutet Huddinge Sweden
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22
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References Values of Soluble α-Klotho Serum Levels Using an Enzyme-Linked Immunosorbent Assay in Healthy Adults Aged 18-85 Years. J Clin Med 2022; 11:jcm11092415. [PMID: 35566540 PMCID: PMC9101232 DOI: 10.3390/jcm11092415] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/21/2022] [Accepted: 04/23/2022] [Indexed: 02/01/2023] Open
Abstract
α-Klotho protein is a powerful predictor of the aging process and lifespan. Although lowered circulating soluble α-Klotho levels have been observed in aged non-healthy individuals, no specific reference values across a wide range of ages and sex using an enzyme-linked immunosorbent assay (ELISA) are available for larger cohorts of healthy individuals. The present analytical cross-sectional study was aimed to establish the reference values of soluble α-Klotho serum levels in healthy adults by age and sex groups. A total of 346 (59% women) healthy individuals aged from 18 to 85 years were recruited. Subjects were divided by sex and age as: (i) young (18−34.9 years), (ii) middle-aged (35−54.9 years), and (iii) senior (55−85 years) individuals. The soluble α-Klotho levels were measured in serum using ELISA. Senior adults were the age-group that presented the lowest soluble α-Klotho serum levels (p < 0.01), with age showing a negative association with soluble α-Klotho serum levels (p < 0.001). No differences between sexes were observed. Therefore, soluble α-Klotho levels were especially decreased—regardless of sex—in our cohort of healthy individuals because of the physiological decline derived from the aging process. We recommend routine assessments of soluble α-Klotho levels using ELISA as a simple and cheap detectable marker of aging that improves quality of life in the elderly.
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23
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A novel single-cell RNA-sequencing approach and its applicability connecting genotype to phenotype in ageing disease. Sci Rep 2022; 12:4091. [PMID: 35260714 PMCID: PMC8904555 DOI: 10.1038/s41598-022-07874-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 02/23/2022] [Indexed: 12/22/2022] Open
Abstract
Single cell multi-omics analysis has the potential to yield a comprehensive understanding of the cellular events that underlie the basis of human diseases. The cardinal feature to access this information is the technology used for single-cell isolation, barcoding, and sequencing. Most currently used single-cell RNA-sequencing platforms have limitations in several areas including cell selection, documentation and library chemistry. In this study, we describe a novel high-throughput, full-length, single-cell RNA-sequencing approach that combines the CellenONE isolation and sorting system with the ICELL8 processing instrument. This method offers substantial improvements in single cell selection, documentation and capturing rate. Moreover, it allows the use of flexible chemistry for library preparations and the analysis of living or fixed cells, whole cells independent of sizing and morphology, as well as of nuclei. We applied this method to dermal fibroblasts derived from six patients with different segmental progeria syndromes and defined phenotype associated pathway signatures with variant associated expression modifiers. These results validate the applicability of our method to highlight genotype-expression relationships for molecular phenotyping of individual cells derived from human patients.
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24
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Maciejczyk M, Nesterowicz M, Szulimowska J, Zalewska A. Oxidation, Glycation, and Carbamylation of Salivary Biomolecules in Healthy Children, Adults, and the Elderly: Can Saliva Be Used in the Assessment of Aging? J Inflamm Res 2022; 15:2051-2073. [PMID: 35378954 PMCID: PMC8976116 DOI: 10.2147/jir.s356029] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/11/2022] [Indexed: 12/12/2022] Open
Abstract
Background Aging is inextricably linked to oxidative stress, inflammation, and posttranslational protein modifications. However, no studies evaluate oxidation, glycation, and carbamylation of salivary biomolecules as biomarkers of aging. Saliva collection is non-invasive, painless, and inexpensive, which are advantages over other biofluids. Methods The study enrolled 180 healthy subjects divided into six groups according to age: 6–13, 14–19, 20–39, 40–59, 60–79, and 80–100 years. The number of individuals was determined a priori based on our previous experiment (power of the test = 0.8; α = 0.05). Non-stimulated saliva and plasma were collected from participants, in which biomarkers of aging were determined by colorimetric, fluorometric, and ELISA methods. Results The study have demonstrated that modifications of salivary proteins increase with age, as manifested by decreased total thiol levels and increased carbonyl groups, glycation (Nε-(carboxymethyl) lysine, advanced glycation end products (AGE)) and carbamylation (carbamyl-lysine) protein products in the saliva of old individuals. Oxidative modifications of lipids (4-hydroxynonenal) and nucleic acids (8-hydroxy-2’-deoxyguanosine (8-OHdG)) also increase with age. Salivary redox biomarkers correlate poorly with their plasma levels; however, salivary AGE and 8-OHdG generally reflect their blood concentrations. In the multivariate regression model, they are a predictor of aging and, in the receiver operating characteristic (ROC) analysis, significantly differentiate children and adolescents (under 15 years old) from the working-age population (15–64 years) and the older people (65 years and older). Conclusion Salivary AGE and 8-OHdG have the most excellent diagnostic utility in assessing the aging process. Saliva can be used to evaluate the aging of the body.
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Affiliation(s)
- Mateusz Maciejczyk
- Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, Bialystok, Poland
- Correspondence: Mateusz Maciejczyk, Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, 2c Mickiewicza Street, Bialystok, 15-233, Poland, Email
| | - Miłosz Nesterowicz
- Students Scientific Club “Biochemistry of Civilization Diseases” at the Department of Hygiene, Epidemiology, and Ergonomics, Medical University of Bialystok, Bialystok, Poland
| | - Julita Szulimowska
- Department of Conservative Dentistry, Medical University of Bialystok, Bialystok, Poland
| | - Anna Zalewska
- Department of Conservative Dentistry, Medical University of Bialystok, Bialystok, Poland
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25
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Riches-Suman K, Hussain A. Identifying and targeting the molecular signature of smooth muscle cells undergoing early vascular ageing. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166403. [DOI: 10.1016/j.bbadis.2022.166403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 03/25/2022] [Accepted: 03/25/2022] [Indexed: 10/18/2022]
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Abu-Libdeh B, Jhujh SS, Dhar S, Sommers JA, Datta A, Longo GM, Grange LJ, Reynolds JJ, Cooke SL, McNee GS, Hollingworth R, Woodward BL, Ganesh AN, Smerdon SJ, Nicolae CM, Durlacher-Betzer K, Molho-Pessach V, Abu-Libdeh A, Meiner V, Moldovan GL, Roukos V, Harel T, Brosh RM, Stewart GS. RECON syndrome is a genome instability disorder caused by mutations in the DNA helicase RECQL1. J Clin Invest 2022; 132:147301. [PMID: 35025765 PMCID: PMC8884905 DOI: 10.1172/jci147301] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 01/11/2022] [Indexed: 11/17/2022] Open
Abstract
Despite being the first homolog of the bacterial RecQ helicase to be identified in humans, the function of RECQL1 remains poorly characterized. Furthermore, unlike other members of the human RECQ family of helicases, mutations in RECQL1 have not been associated with a genetic disease. Here, we identify 2 families with a genome instability disorder that we have named RECON (RECql ONe) syndrome, caused by biallelic mutations in the RECQL gene. The affected individuals had short stature, progeroid facial features, a hypoplastic nose, xeroderma, and skin photosensitivity and were homozygous for the same missense mutation in RECQL1 (p.Ala459Ser), located within its zinc binding domain. Biochemical analysis of the mutant RECQL1 protein revealed that the p.A459S missense mutation compromised its ATPase, helicase, and fork restoration activity, while its capacity to promote single-strand DNA annealing was largely unaffected. At the cellular level, this mutation in RECQL1 gave rise to a defect in the ability to repair DNA damage induced by exposure to topoisomerase poisons and a failure of DNA replication to progress efficiently in the presence of abortive topoisomerase lesions. Taken together, RECQL1 is the fourth member of the RecQ family of helicases to be associated with a human genome instability disorder.
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Affiliation(s)
- Bassam Abu-Libdeh
- Department of Pediatrics & Genetics, Makassed Hospital & Al-Quds Medical School, Jerusalem, Israel
| | - Satpal S Jhujh
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Srijita Dhar
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, Canada
| | - Joshua A Sommers
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, Canada
| | - Arindam Datta
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, Canada
| | - Gabriel Mc Longo
- Institute of Molecular Biology, Institute of Molecular Biology, Mainz, Germany
| | - Laura J Grange
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - John J Reynolds
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Sophie L Cooke
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Gavin S McNee
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Robert Hollingworth
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Beth L Woodward
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Anil N Ganesh
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Stephen J Smerdon
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Claudia M Nicolae
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, United States of America
| | | | - Vered Molho-Pessach
- Department of Dermatology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Abdulsalam Abu-Libdeh
- Department of Pediatrics & Genetics, Makassed Hospital & Al-Quds Medical School, Jerusalem, Israel
| | - Vardiella Meiner
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - George-Lucian Moldovan
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, United States of America
| | - Vassilis Roukos
- Institute of Molecular Biology, Institute of Molecular Biology, Mainz, Germany
| | - Tamar Harel
- Faculty of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Robert M Brosh
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, Canada
| | - Grant S Stewart
- Institute for Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
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Erdem HB, Bahsi T, Ergün MA. Function of telomere in aging and age related diseases. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 85:103641. [PMID: 33774188 DOI: 10.1016/j.etap.2021.103641] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/08/2021] [Accepted: 03/22/2021] [Indexed: 06/12/2023]
Abstract
Telomeres consist of specialized non-coding DNA repeat sequences. They are essential for preserving the integrity of the genome during cancer development, senescence. Mammalian telomeres might have 1-50 kb of telomeric DNA, which becomes 40-200 base pairs shorter after per cell cycle, and becomes 5-8 kilobase shorter during senescence. There are many studies on the correlation of telomere length and aging rate. However, as the differences in the methods used in the studies and the scarcity of prospective studies, factors affecting telomere length are not really well understood. Some of the age related diseases may develop due to telomere dysfunction and telomere shortness. The short telomere structure detected in both peripheral blood leukocytes and cells of the disease-related tissue has the feature of being a predictive marker for many age-related diseases. It is expected that with future research, telomere length analysis is expected to enter clinical practice.
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Affiliation(s)
- Haktan Bağış Erdem
- Department of Medical Genetics, University of Health Sciences, Dr. Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, Yenimahalle, Ankara, Turkey.
| | - Taha Bahsi
- Department of Medical Genetics, University of Health Sciences, Dr. Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, Yenimahalle, Ankara, Turkey.
| | - Mehmet Ali Ergün
- Department of Medical Genetics, Faculty of Medicine, Gazi University, Besevler, Ankara, Turkey.
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Rahman MM, Ferdous KS, Ahmed M, Islam MT, Khan MR, Perveen A, Ashraf GM, Uddin MS. Hutchinson-Gilford Progeria Syndrome: An Overview of the Molecular Mechanism, Pathophysiology and Therapeutic Approach. Curr Gene Ther 2021; 21:216-229. [PMID: 33655857 DOI: 10.2174/1566523221666210303100805] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 01/09/2021] [Accepted: 01/12/2021] [Indexed: 12/29/2022]
Abstract
Lamin A/C encoded by the LMNA gene is an essential component for maintaining the nuclear structure. Mutation in the lamin A/C leads to a group of inherited disorders is known as laminopathies. In the human body, there are several mutations in the LMNA gene that have been identified. It can affect diverse organs or tissues or can be systemic, causing different diseases. In this review, we mainly focused on one of the most severe laminopathies, Hutchinson-Gilford progeria syndrome (HGPS). HGPS is an immensely uncommon, deadly, metameric ill-timed laminopathies caused by the abnormal splicing of the LMNA gene and production of an aberrant protein known as progerin. Here, we also presented the currently available data on the molecular mechanism, pathophysiology, available treatment, and future approaches to this deadly disease. Due to the production of progerin, an abnormal protein leads to an abnormality in nuclear structure, defects in DNA repair, shortening of telomere, and impairment in gene regulation which ultimately results in aging in the early stage of life. Now some treatment options are available for this disease, but a proper understanding of the molecular mechanism of this disease will help to develop a more appropriate treatment which makes it an emerging area of research.
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Affiliation(s)
- Md Mominur Rahman
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
| | - Kazi Sayma Ferdous
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
| | - Muniruddin Ahmed
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
| | - Mohammad Touhidul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
| | - Md Robin Khan
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
| | - Asma Perveen
- Glocal School of Life Sciences, Glocal University, Saharanpur, India
| | - Ghulam Md Ashraf
- Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh
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29
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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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