1
|
Rajamani G, Stafki SA, Daugherty AL, Mantyh WG, Littel HR, Bruels CC, Pacak CA, Robbins PD, Niedernhofer LJ, Abiona A, Giunti P, Mohammed S, Laugel V, Kang PB. Cognitive Decline and Other Late-Stage Neurologic Complications in Cockayne Syndrome. Neurol Clin Pract 2024; 14:e200309. [PMID: 38808024 PMCID: PMC11129329 DOI: 10.1212/cpj.0000000000200309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 02/21/2024] [Indexed: 05/30/2024]
Abstract
Background and Objectives Cockayne syndrome (CS) is an ultra-rare, autosomal recessive, premature aging disorder characterized by impaired growth, neurodevelopmental delays, neurodegeneration, polyneuropathy, and other multiorgan system complications. The anatomic aspects of CS neurodegeneration have long been known from postmortem examinations and MRI studies, but the clinical features of this neurodegeneration are not well characterized, especially at later stages of the disease. Methods This was a retrospective observational study in which individuals with CS who survived beyond 18 years were ascertained at 3 centers in the United States, France, and the United Kingdom. Medical records were examined to determine the frequencies and features of the following neurologic complications: neurocognitive/neuropsychiatric decline (8 symptoms), tremors, neuropathy, seizures, and strokes. Results Among 18 individuals who met inclusion criteria, all but one (94.4%) experienced at least one symptom of neurocognitive/neuropsychiatric decline, with most individuals experiencing at least half of those symptoms. Most participants experienced tremors and peripheral neuropathy, with a few experiencing seizures and strokes. For individuals with available data, 100.0% were reported to have gait ataxia and neuroimaging showed that 85.7% had generalized cerebral atrophy on MRI while 78.6% had white matter changes. Discussion Symptoms of neurocognitive/neuropsychiatric decline are nearly universal in our cohort of adults with CS, suggesting that these individuals are at risk of developing neurocognitive/neuropsychiatric decline, with symptoms related to but not specific to dementia. Considering the prominent role of DNA repair defects in CS disease mechanisms and emerging evidence for increased DNA damage in neurodegenerative disease, impaired genome maintenance may be a shared pathway underlying multiple forms of neurocognitive/neuropsychiatric decline. Components of the DNA damage response mechanism may bear further study as potential therapeutic targets that could alleviate neurocognitive/neuropsychiatric symptoms in CS and other neurodegenerative disorders.
Collapse
Affiliation(s)
- Geetanjali Rajamani
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Seth A Stafki
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Audrey L Daugherty
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - William G Mantyh
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Hannah R Littel
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Christine C Bruels
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Christina A Pacak
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Paul D Robbins
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Laura J Niedernhofer
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Adesoji Abiona
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Paola Giunti
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Shehla Mohammed
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Vincent Laugel
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| | - Peter B Kang
- University of Minnesota Medical School (GR); Greg Marzolf Jr. Muscular Dystrophy Center (SAS, ALD, HRL, CCB, CAP, PBK); Department of Neurology (SAS, ALD, WGM, HRL, CCB, CAP, PBK), University of Minnesota Medical School; Institute on the Biology of Aging and Metabolism (PDR, LJN), University of Minnesota, Minneapolis; Clinical Genetics (AA, PG, SM), Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom; Department of Pediatric Neurology/Centre d'investigation Clinique (CIC) (VL), Strasbourg University Hospital, France; and Institute for Translational Neuroscience (PBK), University of Minnesota, Minneapolis
| |
Collapse
|
2
|
Kostova M, Banerjee A. Treatment outcomes of cochlear implantation in pediatric patients with Cockayne syndrome type I: a case series. J Surg Case Rep 2024; 2024:rjae346. [PMID: 38803843 PMCID: PMC11129825 DOI: 10.1093/jscr/rjae346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 05/05/2024] [Indexed: 05/29/2024] Open
Abstract
This retrospective case series evaluates treatment outcomes post-cochlear implantation in pediatric patients diagnosed with Cockayne syndrome (CS) and bilateral sensorineural hearing loss. Two female pediatric patients with CS type I underwent either bilateral or unilateral cochlear implantation. Visual reinforcement audiometry (VRA) and postoperative cochlear implant tolerance were the main outcome measures. Patient 1 demonstrated notable improvements in VRA results and school performance following bilateral implantation. Patient 2 experienced enhanced quality of life and environmental awareness post-unilateral implantation, despite a lack of objective VRA results due to developmental delay. The study underscores the benefits of cochlear implantation in CS patients, especially in patients who are post-lingual or with better cognitive function.
Collapse
Affiliation(s)
- Mariana Kostova
- Department of Otorhinolaryngology, The James Cook University Hospital, Middlesbrough, TS4 3BW, United Kingdom
| | - Anirvan Banerjee
- Department of Otorhinolaryngology, The James Cook University Hospital, Middlesbrough, TS4 3BW, United Kingdom
| |
Collapse
|
3
|
Muniesa-Vargas A, Davó-Martínez C, Ribeiro-Silva C, van der Woude M, Thijssen KL, Haspels B, Häckes D, Kaynak ÜU, Kanaar R, Marteijn JA, Theil AF, Kuijten MMP, Vermeulen W, Lans H. Persistent TFIIH binding to non-excised DNA damage causes cell and developmental failure. Nat Commun 2024; 15:3490. [PMID: 38664429 PMCID: PMC11045817 DOI: 10.1038/s41467-024-47935-9] [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: 04/22/2023] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Congenital nucleotide excision repair (NER) deficiency gives rise to several cancer-prone and/or progeroid disorders. It is not understood how defects in the same DNA repair pathway cause different disease features and severity. Here, we show that the absence of functional ERCC1-XPF or XPG endonucleases leads to stable and prolonged binding of the transcription/DNA repair factor TFIIH to DNA damage, which correlates with disease severity and induces senescence features in human cells. In vivo, in C. elegans, this prolonged TFIIH binding to non-excised DNA damage causes developmental arrest and neuronal dysfunction, in a manner dependent on transcription-coupled NER. NER factors XPA and TTDA both promote stable TFIIH DNA binding and their depletion therefore suppresses these severe phenotypical consequences. These results identify stalled NER intermediates as pathogenic to cell functionality and organismal development, which can in part explain why mutations in XPF or XPG cause different disease features than mutations in XPA or TTDA.
Collapse
Affiliation(s)
- Alba Muniesa-Vargas
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Carlota Davó-Martínez
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Cristina Ribeiro-Silva
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Melanie van der Woude
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Karen L Thijssen
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Ben Haspels
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Oncode Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - David Häckes
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Ülkem U Kaynak
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Roland Kanaar
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Oncode Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Jurgen A Marteijn
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Oncode Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Arjan F Theil
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Maayke M P Kuijten
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Oncode Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Wim Vermeulen
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Hannes Lans
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands.
| |
Collapse
|
4
|
Bramwell LR, Harries LW. Senescence, regulators of alternative splicing and effects of trametinib treatment in progeroid syndromes. GeroScience 2024; 46:1861-1879. [PMID: 37751047 PMCID: PMC10828446 DOI: 10.1007/s11357-023-00933-z] [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: 07/13/2023] [Accepted: 09/04/2023] [Indexed: 09/27/2023] Open
Abstract
Progeroid syndromes such as Hutchinson Gilford Progeroid syndrome (HGPS), Werner syndrome (WS) and Cockayne syndrome (CS), result in severely reduced lifespans and premature ageing. Normal senescent cells show splicing factor dysregulation, which has not yet been investigated in syndromic senescent cells. We sought to investigate the senescence characteristics and splicing factor expression profiles of progeroid dermal fibroblasts. Natural cellular senescence can be reversed by application of the senomorphic drug, trametinib, so we also investigated its ability to reverse senescence characteristics in syndromic cells. We found that progeroid cultures had a higher senescence burden, but did not always have differences in levels of proliferation, DNA damage repair and apoptosis. Splicing factor gene expression appeared dysregulated across the three syndromes. 10 µM trametinib reduced senescent cell load and affected other aspects of the senescence phenotype (including splicing factor expression) in HGPS and Cockayne syndromes. Werner syndrome cells did not demonstrate changes in in senescence following treatment. Splicing factor dysregulation in progeroid cells provides further evidence to support this mechanism as a hallmark of cellular ageing and highlights the use of progeroid syndrome cells in the research of ageing and age-related disease. This study suggests that senomorphic drugs such as trametinib could be a useful adjunct to therapy for progeroid diseases.
Collapse
Affiliation(s)
- Laura R Bramwell
- RNA-Mediated Mechanisms of Disease Group, Department of Clinical and Biomedical Sciences (Medical School), Faculty of Health and Life Sciences, University of Exeter, Exeter, UK
| | - Lorna W Harries
- RNA-Mediated Mechanisms of Disease Group, Department of Clinical and Biomedical Sciences (Medical School), Faculty of Health and Life Sciences, University of Exeter, Exeter, UK.
| |
Collapse
|
5
|
Patro N, Sathishkumar D, Panda M, Mahajan R. Algorithmic approach toward diagnosis of patients with congenital photosensitivity disorders and review of literature. Int J Dermatol 2024; 63:298-305. [PMID: 38115704 DOI: 10.1111/ijd.16965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/15/2023] [Accepted: 11/28/2023] [Indexed: 12/21/2023]
Abstract
The congenital photosensitivity disorders present as cutaneous signs and symptoms secondary to photosensitivity, extracutaneous manifestations, and a predisposition to malignancy. Diagnosis of these conditions mainly depend on clinical findings as the molecular analysis is not always feasible. A review of all the related articles collected after a thorough literature search using keywords, "congenital AND photosensitivity NOT acquired" and the individual diseases was done. A total of 264 articles were included in the review. An algorithm for diagnosis of the different congenital photosensitivity disorders based on the various clinical presentations has been proposed. An early suspicion and diagnosis of the different congenital photosensitivity disorders is the cornerstone behind prompt institution of prevention and treatment, and decreasing the associated morbidity.
Collapse
Affiliation(s)
- Nibedita Patro
- Department of Dermatology, Venereology & Leprosy, Hi-Tech Medical College & Hospital, Bhubaneswar, India
| | | | - Maitreyee Panda
- Department of Dermatology, Venereology & Leprosy, IMS & SUM Hospital, Bhubaneswar, India
| | - Rahul Mahajan
- Department of Dermatology, Venereology, and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| |
Collapse
|
6
|
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.
Collapse
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
| |
Collapse
|
7
|
Messina C. Woodhouse-Sakati syndrome: A review. Rev Neurol (Paris) 2024:S0035-3787(24)00023-7. [PMID: 38320940 DOI: 10.1016/j.neurol.2023.11.008] [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: 03/18/2023] [Revised: 10/26/2023] [Accepted: 11/09/2023] [Indexed: 02/08/2024]
Abstract
Neurodegeneration with brain iron accumulation (NBIA) is a rare and inherited spectrum of movement disorders caused by mutations affecting the function of proteins that participate in the homeostasis of tissue metals such as iron or copper and other metabolic pathways, although the precise function of the proteins encoded are not always known. Woodhouse-Sakati Syndrome (WSS) is one of the rarest NBIAs. Patients with WSS are characterized by endocrinological and neurological manifestations and neuroradiological findings. However, diagnostic criteria have not been published yet. This article reviews updates on the genetic, clinical, biological and imaging findings of WSS and provides a practical guide to recognize this extremely rare disorder.
Collapse
Affiliation(s)
- C Messina
- Department of Medical and Surgical Sciences, and Advanced Technologies, "G.F. Ingrassia", Azienda Ospedaliera Universitaria "G. Rodolico-San Marco", University of Catania, Catania, Italy.
| |
Collapse
|
8
|
van der Woude M, Davó-Martínez C, Thijssen K, Vermeulen W, Lans H. Recovery of protein synthesis to assay DNA repair activity in transcribed genes in living cells and tissues. Nucleic Acids Res 2023; 51:e93. [PMID: 37522336 PMCID: PMC10570043 DOI: 10.1093/nar/gkad642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 06/19/2023] [Accepted: 07/25/2023] [Indexed: 08/01/2023] Open
Abstract
Transcription-coupled nucleotide excision repair (TC-NER) is an important DNA repair mechanism that protects against the negative effects of transcription-blocking DNA lesions. Hereditary TC-NER deficiencies cause pleiotropic and often severe neurodegenerative and progeroid symptoms. While multiple assays have been developed to determine TC-NER activity for clinical and research purposes, monitoring TC-NER is hampered by the low frequency of repair events occurring in transcribed DNA. 'Recovery of RNA Synthesis' is widely used as indirect TC-NER assay based on the notion that lesion-blocked transcription only resumes after successful TC-NER. Here, we show that measuring novel synthesis of a protein after its compound-induced degradation prior to DNA damage induction is an equally effective but more versatile manner to indirectly monitor DNA repair activity in transcribed genes. This 'Recovery of Protein Synthesis' (RPS) assay can be adapted to various degradable proteins and readouts, including imaging and immunoblotting. Moreover, RPS allows real-time monitoring of TC-NER activity in various living cells types and even in differentiated tissues of living organisms. To illustrate its utility, we show that DNA repair in transcribed genes declines in aging muscle tissue of C. elegans. Therefore, the RPS assay constitutes an important novel clinical and research tool to investigate transcription-coupled DNA repair.
Collapse
Affiliation(s)
- Melanie van der Woude
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Carlota Davó-Martínez
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Karen L Thijssen
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Wim Vermeulen
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Hannes Lans
- Department of Molecular Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| |
Collapse
|
9
|
Crochemore C, Chica C, Garagnani P, Lattanzi G, Horvath S, Sarasin A, Franceschi C, Bacalini MG, Ricchetti M. Epigenomic signature of accelerated ageing in progeroid Cockayne syndrome. Aging Cell 2023; 22:e13959. [PMID: 37688320 PMCID: PMC10577576 DOI: 10.1111/acel.13959] [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: 05/17/2022] [Revised: 07/16/2023] [Accepted: 07/31/2023] [Indexed: 09/10/2023] Open
Abstract
Cockayne syndrome (CS) and UV-sensitive syndrome (UVSS) are rare genetic disorders caused by mutation of the DNA repair and multifunctional CSA or CSB protein, but only CS patients display a progeroid and neurodegenerative phenotype, providing a unique conceptual and experimental paradigm. As DNA methylation (DNAm) remodelling is a major ageing marker, we performed genome-wide analysis of DNAm of fibroblasts from healthy, UVSS and CS individuals. Differential analysis highlighted a CS-specific epigenomic signature (progeroid-related; not present in UVSS) enriched in three categories: developmental transcription factors, ion/neurotransmitter membrane transporters and synaptic neuro-developmental genes. A large fraction of CS-specific DNAm changes were associated with expression changes in CS samples, including in previously reported post-mortem cerebella. The progeroid phenotype of CS was further supported by epigenomic hallmarks of ageing: the prediction of DNAm of repetitive elements suggested an hypomethylation of Alu sequences in CS, and the epigenetic clock returned a marked increase in CS biological age respect to healthy and UVSS cells. The epigenomic remodelling of accelerated ageing in CS displayed both commonalities and differences with other progeroid diseases and regular ageing. CS shared DNAm changes with normal ageing more than other progeroid diseases do, and included genes functionally validated for regular ageing. Collectively, our results support the existence of an epigenomic basis of accelerated ageing in CS and unveil new genes and pathways that are potentially associated with the progeroid/degenerative phenotype.
Collapse
Affiliation(s)
- Clément Crochemore
- Institut Pasteur, Université Paris Cité, Molecular Mechanisms of Pathological and Physiological Ageing Unit, UMR3738 CNRSParisFrance
- Institut Pasteur, Team Stability of Nuclear and Mitochondrial DNA, Stem Cells and Development, UMR3738 CNRSParisFrance
- Sup'BiotechVillejuifFrance
| | - Claudia Chica
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics HubParisFrance
| | - Paolo Garagnani
- IRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
- Department of Medical and Surgical Sciences (DIMEC)University of BolognaBolognaItaly
| | - Giovanna Lattanzi
- CNR Institute of Molecular Genetics “Luigi Luca Cavalli‐Sforza”, Unit of BolognaBolognaItaly
- IRCCS Istituto Ortopedico RizzoliBolognaItaly
| | - Steve Horvath
- Department of Human Genetics, David Geffen School of MedicineUniversity of CaliforniaLos AngelesUSA
- Department of Biostatistics Fielding School of Public HealthUniversity of CaliforniaLos AngelesUSA
| | - Alain Sarasin
- Laboratory of Genetic Stability and Oncogenesis, Institut de Cancérologie Gustave RoussyUniversity Paris‐SudVillejuifFrance
| | - Claudio Franceschi
- Institute of Information Technologies, Mathematics and MechanicsLobachevsky UniversityNizhniy NovgorodRussia
| | | | - Miria Ricchetti
- Institut Pasteur, Université Paris Cité, Molecular Mechanisms of Pathological and Physiological Ageing Unit, UMR3738 CNRSParisFrance
- Institut Pasteur, Team Stability of Nuclear and Mitochondrial DNA, Stem Cells and Development, UMR3738 CNRSParisFrance
| |
Collapse
|
10
|
Carroll J, Pabst L, Koboldt DC, Franklin SJ, Choi S, Wilson RK, Lo W. Novel Presentation of Hemiplegic Migraine in a Patient With Cockayne Syndrome. Pediatr Neurol 2023; 138:95-97. [PMID: 36434915 DOI: 10.1016/j.pediatrneurol.2022.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/12/2022] [Accepted: 10/22/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Cockayne syndrome is a rare DNA repair disorder marked by premature aging, poor growth, and intellectual disability. Neurological complications such as seizures, movement disorder, and stroke have been reported. Hemiplegic migraine has not been reported in association with Cockayne syndrome. METHODS We report a male with Cockayne syndrome due to biallelic heterozygous pathogenic variants in ERCC6 who presented repeatedly with transient focal neurological deficits and headache, which were consistent with hemiplegic migraine. Two siblings also had Cockayne syndrome and presented with similar symptoms. RESULTS Our patient was originally diagnosed based on clinical suspicion and then confirmed by targeted exome analysis of genes associated with Cockayne syndrome. The family's research exome sequencing data were reanalyzed to identify variants in genes known to cause familial hemiplegic migraine. No variants in the genes known to cause familial hemiplegic migraine were identified. CONCLUSION This is a novel association of familial hemiplegic migraine in three full siblings with Cockayne syndrome. Hemiplegic migraine has not previously been described as part of the Cockayne syndrome presentation. A separate genetic cause of familial hemiplegic migraines was not identified in an exome-based analysis of genes known to cause this condition. This report may represent an expansion of the Cockayne syndrome phenotype.
Collapse
Affiliation(s)
- Jennifer Carroll
- Division of Genetic and Genomic Medicine at Nationwide Children's Hospital, Columbus, Ohio; Division of Human Genetics, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Lisa Pabst
- Division of Neurology, Department of Pediatrics at Nationwide Children's Hospital, Columbus, Ohio
| | - Daniel C Koboldt
- Steve and Cindy Rasmussen Institute for Genomic Medicine at Nationwide Children's Hospital, Columbus, Ohio; Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Samuel J Franklin
- Steve and Cindy Rasmussen Institute for Genomic Medicine at Nationwide Children's Hospital, Columbus, Ohio
| | - Samantha Choi
- Steve and Cindy Rasmussen Institute for Genomic Medicine at Nationwide Children's Hospital, Columbus, Ohio
| | - Richard K Wilson
- Steve and Cindy Rasmussen Institute for Genomic Medicine at Nationwide Children's Hospital, Columbus, Ohio; Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Warren Lo
- Division of Neurology, Department of Pediatrics at Nationwide Children's Hospital, Columbus, Ohio; Division of Neurology, The Ohio State University, Columbus, Ohio.
| |
Collapse
|
11
|
Nikfar A, Mansouri M, Chiti H, Abhari GF, Parsamanesh N. Cockayne syndrome in an Iranian pedigree with a homozygous missense variant in the ERCC6 gene. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2022.101665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
12
|
Chang KJ, Wu HY, Yarmishyn AA, Li CY, Hsiao YJ, Chi YC, Lo TC, Dai HJ, Yang YC, Liu DH, Hwang DK, Chen SJ, Hsu CC, Kao CL. Genetics behind Cerebral Disease with Ocular Comorbidity: Finding Parallels between the Brain and Eye Molecular Pathology. Int J Mol Sci 2022; 23:ijms23179707. [PMID: 36077104 PMCID: PMC9456058 DOI: 10.3390/ijms23179707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/18/2022] [Accepted: 08/22/2022] [Indexed: 11/30/2022] Open
Abstract
Cerebral visual impairments (CVIs) is an umbrella term that categorizes miscellaneous visual defects with parallel genetic brain disorders. While the manifestations of CVIs are diverse and ambiguous, molecular diagnostics stand out as a powerful approach for understanding pathomechanisms in CVIs. Nevertheless, the characterization of CVI disease cohorts has been fragmented and lacks integration. By revisiting the genome-wide and phenome-wide association studies (GWAS and PheWAS), we clustered a handful of renowned CVIs into five ontology groups, namely ciliopathies (Joubert syndrome, Bardet–Biedl syndrome, Alstrom syndrome), demyelination diseases (multiple sclerosis, Alexander disease, Pelizaeus–Merzbacher disease), transcriptional deregulation diseases (Mowat–Wilson disease, Pitt–Hopkins disease, Rett syndrome, Cockayne syndrome, X-linked alpha-thalassaemia mental retardation), compromised peroxisome disorders (Zellweger spectrum disorder, Refsum disease), and channelopathies (neuromyelitis optica spectrum disorder), and reviewed several mutation hotspots currently found to be associated with the CVIs. Moreover, we discussed the common manifestations in the brain and the eye, and collated animal study findings to discuss plausible gene editing strategies for future CVI correction.
Collapse
Affiliation(s)
- Kao-Jung Chang
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
| | - Hsin-Yu Wu
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | | | - Cheng-Yi Li
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Yu-Jer Hsiao
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Yi-Chun Chi
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Tzu-Chen Lo
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - He-Jhen Dai
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Yi-Chiang Yang
- Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Ding-Hao Liu
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - De-Kuang Hwang
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Shih-Jen Chen
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Chih-Chien Hsu
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Correspondence: (C.-C.H.); (C.-L.K.); Tel.: +886-2-287-573-25 (C.-C.H.); +886-2-287-573-63 (C.-L.K.)
| | - Chung-Lan Kao
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital, Taipei 11217, Taiwan
- Department of Physical Medicine and Rehabilitation, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Center for Intelligent Drug Systems and Smart Bio-Devices (IDS2B), National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan
- Correspondence: (C.-C.H.); (C.-L.K.); Tel.: +886-2-287-573-25 (C.-C.H.); +886-2-287-573-63 (C.-L.K.)
| |
Collapse
|
13
|
Paccosi E, Balajee AS, Proietti-De-Santis L. A matter of delicate balance: Loss and gain of Cockayne syndrome proteins in premature aging and cancer. FRONTIERS IN AGING 2022; 3:960662. [PMID: 35935726 PMCID: PMC9351357 DOI: 10.3389/fragi.2022.960662] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/04/2022] [Indexed: 12/26/2022]
Abstract
DNA repair genes are critical for preserving genomic stability and it is well established that mutations in DNA repair genes give rise to progeroid diseases due to perturbations in different DNA metabolic activities. Cockayne Syndrome (CS) is an autosomal recessive inheritance caused by inactivating mutations in CSA and CSB genes. This review will primarily focus on the two Cockayne Syndrome proteins, CSA and CSB, primarily known to be involved in Transcription Coupled Repair (TCR). Curiously, dysregulated expression of CS proteins has been shown to exhibit differential health outcomes: lack of CS proteins due to gene mutations invariably leads to complex premature aging phenotypes, while excess of CS proteins is associated with carcinogenesis. Thus it appears that CS genes act as a double-edged sword whose loss or gain of expression leads to premature aging and cancer. Future mechanistic studies on cell and animal models of CS can lead to potential biological targets for interventions in both aging and cancer development processes. Some of these exciting possibilities will be discussed in this review in light of the current literature.
Collapse
Affiliation(s)
- Elena Paccosi
- Unit of Molecular Genetics of Aging, Department of Ecology and Biology, University of Tuscia, Viterbo, Italy
- *Correspondence: Elena Paccosi, ; Adayabalam S. Balajee, ; Luca Proietti-De-Santis,
| | - Adayabalam S. Balajee
- Cytogenetic Biodosimetry Laboratory, Radiation Emergency Assistance Center/Training Site, Oak Ridge Institute of Science and Education, Oak Ridge Associated Universities, Oak Ridge, TN, United States
- *Correspondence: Elena Paccosi, ; Adayabalam S. Balajee, ; Luca Proietti-De-Santis,
| | - Luca Proietti-De-Santis
- Unit of Molecular Genetics of Aging, Department of Ecology and Biology, University of Tuscia, Viterbo, Italy
- *Correspondence: Elena Paccosi, ; Adayabalam S. Balajee, ; Luca Proietti-De-Santis,
| |
Collapse
|
14
|
Temaj G, Saha S, Dragusha S, Ejupi V, Buttari B, Profumo E, Beqa L, Saso L. Ribosomopathies and cancer: pharmacological implications. Expert Rev Clin Pharmacol 2022; 15:729-746. [PMID: 35787725 DOI: 10.1080/17512433.2022.2098110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The ribosome is a ribonucleoprotein organelle responsible for protein synthesis, and its biogenesis is a highly coordinated process that involves many macromolecular components. Any acquired or inherited impairment in ribosome biogenesis or ribosomopathies is associated with the development of different cancers and rare genetic diseases. Interference with multiple steps of protein synthesis has been shown to promote tumor cell death. AREAS COVERED We discuss the current insights about impaired ribosome biogenesis and their secondary consequences on protein synthesis, transcriptional and translational responses, proteotoxic stress, and other metabolic pathways associated with cancer and rare diseases. Studies investigating the modulation of different therapeutic chemical entities targeting cancer in in vitro and in vivo models have also been detailed. EXPERT OPINION Despite the association between inherited mutations affecting ribosome biogenesis and cancer biology, the development of therapeutics targeting the essential cellular machinery has only started to emerge. New chemical entities should be designed to modulate different checkpoints (translating oncoproteins, dysregulation of specific ribosome-assembly machinery, ribosomal stress, and rewiring ribosomal functions). Although safe and effective therapies are lacking, consideration should also be given to using existing drugs alone or in combination for long-term safety, with known risks for feasibility in clinical trials and synergistic effects.
Collapse
Affiliation(s)
| | - Sarmistha Saha
- Department of Cardiovascular, Endocrine-metabolic Diseases, and Aging, Italian National Institute of Health, Rome, Italy
| | | | - Valon Ejupi
- College UBT, Faculty of Pharmacy, Prishtina, Kosovo
| | - Brigitta Buttari
- Department of Cardiovascular, Endocrine-metabolic Diseases, and Aging, Italian National Institute of Health, Rome, Italy
| | - Elisabetta Profumo
- Department of Cardiovascular, Endocrine-metabolic Diseases, and Aging, Italian National Institute of Health, Rome, Italy
| | - Lule Beqa
- College UBT, Faculty of Pharmacy, Prishtina, Kosovo
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, Italy
| |
Collapse
|
15
|
Duong NT, Dinh TH, Möhl BS, Hintze S, Quynh DH, Ha DTT, Ngoc ND, Dung VC, Miyake N, Hai NV, Matsumoto N, Meinke P. Cockayne syndrome without UV-sensitivity in Vietnamese siblings with novel ERCC8 variants. Aging (Albany NY) 2022; 14:5299-5310. [PMID: 35748794 PMCID: PMC9320540 DOI: 10.18632/aging.204139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 06/14/2022] [Indexed: 11/25/2022]
Abstract
Cockayne syndrome (CS) is a rare progeroid disorder characterized by growth failure, microcephaly, photosensitivity, and premature aging, mainly arising from biallelic ERCC8 (CS-A) or ERCC6 (CS-B) variants. In this study we describe siblings suffering from classical Cockayne syndrome but without photosensitivity, which delayed a clinical diagnosis for 16 years. By whole-exome sequencing we identified the two novel compound heterozygous ERCC8 variants c.370_371del (p.L124Efs*15) and c.484G>C (p.G162R). The causality of the ERCC8 variants, of which one results in a frameshift and the other affects the WD3 domain, was tested and confirmed by a rescue experiment investigating DNA repair in H2O2 treated patient fibroblasts. Structural modeling of the p.G162R variant indicates effects on protein-protein interaction. This case shows the importance to test for ERCC6 and ERCC8 variants even if patients do not present with a complete CS phenotype.
Collapse
Affiliation(s)
- Nguyen Thuy Duong
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Tran Huu Dinh
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Britta S Möhl
- Institute of Virology, School of Medicine, Technical University of Munich/Helmholtz Zentrum München, Munich, Germany
| | - Stefan Hintze
- Friedrich-Baur-Institute, Department of Neurology, LMU Klinikum, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Do Hai Quynh
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Duong Thi Thu Ha
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngo Diem Ngoc
- Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Vu Chi Dung
- Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Kanagawa, Japan.,Department of Human Genetics, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - Nong Van Hai
- Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Peter Meinke
- Friedrich-Baur-Institute, Department of Neurology, LMU Klinikum, Ludwig-Maximilians-University Munich, Munich, Germany
| |
Collapse
|
16
|
Whole-exome sequencing revealed a novel ERCC6 variant in a Vietnamese patient with Cockayne syndrome. Hum Genome Var 2022; 9:21. [PMID: 35668072 PMCID: PMC9170721 DOI: 10.1038/s41439-022-00200-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/13/2022] [Accepted: 05/04/2022] [Indexed: 01/11/2023] Open
Abstract
We describe a case of Cockayne syndrome without photosensitivity in a Vietnamese family. This lack of photosensitivity prevented the establishment of a confirmed medical clinical diagnosis for 16 years. Whole-exome sequencing (WES) identified a novel missense variant combined with a known nonsense variant in the ERCC6 gene, NM_000124.4: c.[2839C>T;2936A>G], p.[R947*;K979R]. This case emphasizes the importance of WES in investigating the etiology of a disease when patients do not present the complete clinical phenotypes of Cockayne syndrome.
Collapse
|
17
|
Chikhaoui A, Kraoua I, Calmels N, Bouchoucha S, Obringer C, Zayoud K, Montagne B, M’rad R, Abdelhak S, Laugel V, Ricchetti M, Turki I, Yacoub-Youssef H. Heterogeneous clinical features in Cockayne syndrome patients and siblings carrying the same CSA mutations. Orphanet J Rare Dis 2022; 17:121. [PMID: 35248096 PMCID: PMC8898519 DOI: 10.1186/s13023-022-02257-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 02/16/2022] [Indexed: 11/10/2022] Open
Abstract
Background Cockayne syndrome (CS) is a rare autosomal recessive disorder caused by mutations in ERCC6/CSB or ERCC8/CSA that participate in the transcription-coupled nucleotide excision repair (TC-NER) of UV-induced DNA damage. CS patients display a large heterogeneity of clinical symptoms and severities, the reason of which is not fully understood, and that cannot be anticipated in the diagnostic phase. In addition, little data is available for affected siblings, and this disease is largely undiagnosed in North Africa. Methods We report here the clinical description as well as genetic and functional characterization of eight Tunisian CS patients, including siblings. These patients, who belonged to six unrelated families, underwent complete clinical examination and biochemical analyses. Sanger sequencing was performed for the recurrent mutation in five families, and targeted gene sequencing was done for one patient of the sixth family. We also performed Recovery RNA Synthesis (RRS) to confirm the functional impairment of DNA repair in patient-derived fibroblasts. Results Six out of eight patients carried a homozygous indel mutation (c.598_600delinsAA) in exon 7 of ERCC8, and displayed a variable clinical spectrum including between siblings sharing the same mutation. The other two patients were siblings who carried a homozygous splice-site variant in ERCC8 (c.843+1G>C). This last pair presented more severe clinical manifestations, which are rarely associated with CSA mutations, leading to gastrostomy and hepatic damage. Impaired TC-NER was confirmed by RRS in six tested patients. Conclusions This study provides the first deep characterization of case series of CS patients carrying CSA mutations in North Africa. These mutations have been described only in this region and in the Middle-East. We also provide the largest characterization of multiple unrelated patients, as well as siblings, carrying the same mutation, providing a framework for dissecting elusive genotype–phenotype correlations in CS. Supplementary Information The online version contains supplementary material available at 10.1186/s13023-022-02257-1.
Collapse
|
18
|
Damaj-Fourcade R, Meyer N, Obringer C, Le May N, Calmels N, Laugel V. Statistical Approach of the Role of the Conserved CSB-PiggyBac Transposase Fusion Protein (CSB-PGBD3) in Genotype-Phenotype Correlation in Cockayne Syndrome Type B. Front Genet 2022; 13:762047. [PMID: 35251122 PMCID: PMC8891132 DOI: 10.3389/fgene.2022.762047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 01/24/2022] [Indexed: 11/14/2022] Open
Abstract
Cockayne syndrome is a rare condition that encompasses a very wide spectrum of clinical severity. Mutations upstream of a transposon called PiggyBac Transposable Element Derived 3 in intron 5 of the CSB/ERCC6 gene could bring about less severe forms than mutations located downstream of that transposon insertion. Our aim was to study genotype-phenotype correlation by determining whether the position of each mutation of the CSB/ERCC6 gene has an impact on the phenotype. A hundred and forty-seven Cockayne patients, who had two pathogenic mutations in the CSB/ERCC6 gene and for whom clinical data was available, were retrospectively selected and included in the study. Data analysis was performed under the Bayesian paradigm. Analysis of the proportion of the different subtypes of Cockayne syndrome according to the position of the mutations was done using an ordinal logistic regression model. Using a vague prior, the risk of developing a more severe subtype when exposed to 2 mutations downstream compared to 2 mutations upstream was 2.0 [0.9–4.5]. Estimations varied through the sensitivity analysis. We could reasonably conclude that a relationship between the number of downstream mutations and the Cockayne syndrome clinical expression exists but it is still difficult to give a precise estimate of this relationship. The real effect could be more complex that the one described in the initial model and other genetic factors might be taken into consideration together with the mutation site to better explain clinical variability.
Collapse
Affiliation(s)
| | - Nicolas Meyer
- GMRC, Service de Santé Publique, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
- ICUBE, UMR 7357, Université de Strasbourg, Illkirch, France
| | - Cathy Obringer
- Laboratoire de Génétique Médicale, Institut de Génétique Médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Nicolas Le May
- Laboratoire de Génétique Médicale, Institut de Génétique Médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Nadège Calmels
- Laboratoire de Génétique Médicale, Institut de Génétique Médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, CRBS, Strasbourg, France
| | - Vincent Laugel
- Laboratoire de Génétique Médicale, Institut de Génétique Médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
- Service de Pédiatrie Spécialisée et Générale, Unité de Neurologie Pédiatrique, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
- *Correspondence: Vincent Laugel,
| |
Collapse
|
19
|
Zayoud K, Kraoua I, Chikhaoui A, Calmels N, Bouchoucha S, Obringer C, Crochemore C, Najjar D, Zarrouk S, Miladi N, Laugel V, Ricchetti M, Turki I, Yacoub-Youssef H. Identification and Characterization of a Novel Recurrent ERCC6 Variant in Patients with a Severe Form of Cockayne Syndrome B. Genes (Basel) 2021; 12:genes12121922. [PMID: 34946871 PMCID: PMC8701866 DOI: 10.3390/genes12121922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 01/06/2023] Open
Abstract
Cockayne syndrome (CS) is a rare disease caused by mutations in ERCC6/CSB or ERCC8/CSA. We report here the clinical, genetic, and functional analyses of three unrelated patients mutated in ERCC6/CSB with a severe phenotype. After clinical examination, two patients were investigated via next generation sequencing, targeting seventeen Nucleotide Excision Repair (NER) genes. All three patients harbored a novel, c.3156dup, homozygous mutation located in exon 18 of ERCC6/CSB that affects the C-terminal region of the protein. Sanger sequencing confirmed the mutation and the parental segregation in the three families, and Western blots showed a lack of the full-length protein. NER functional impairment was shown by reduced recovery of RNA synthesis with proficient unscheduled DNA synthesis after UV-C radiations in patient-derived fibroblasts. Despite sharing the same mutation, the clinical spectrum was heterogeneous among the three patients, and only two patients displayed clinical photosensitivity. This novel ERCC6 variant in Tunisian patients suggests a founder effect and has implications for setting-up prenatal diagnosis/genetic counselling in North Africa, where this disease is largely undiagnosed. This study reveals one of the rare cases of CS clinical heterogeneity despite the same mutation. Moreover, the occurrence of an identical homozygous mutation, which either results in clinical photosensitivity or does not, strongly suggests that this classic CS symptom relies on multiple factors.
Collapse
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; (K.Z.); (A.C.); (D.N.)
- Faculté des Sciences de Bizerte, Bizerte 7000, Tunisia
| | - Ichraf Kraoua
- LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis 1007, Tunisia; (I.K.); (I.T.)
| | - Asma Chikhaoui
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia; (K.Z.); (A.C.); (D.N.)
| | - Nadège Calmels
- Laboratoires de Diagnostic Génétique, Institut de Génétique Médicale d’Alsace, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, 67000 Strasbourg, France;
- Laboratoire de Génétique Médicale, INSERM U1112, Institut de génétique médicale d’Alsace, CRBS, 67000 Strasbourg, France; (C.O.); (V.L.)
| | - Sami Bouchoucha
- Service Orthopédie, Hôpital d’enfant Béchir Hamza, Tunis 1000, Tunisia;
| | - Cathy Obringer
- Laboratoire de Génétique Médicale, INSERM U1112, Institut de génétique médicale d’Alsace, CRBS, 67000 Strasbourg, France; (C.O.); (V.L.)
| | - Clément Crochemore
- Institut Pasteur, Team Stability of Nuclear and Mitochondrial DNA, Stem Cells and Development, UMR 3738 CNRS, 25-28 rue du Dr. Roux, 75015 Paris, France; (C.C.); (M.R.)
| | - Dorra Najjar
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia; (K.Z.); (A.C.); (D.N.)
| | - Sinda Zarrouk
- Genomics Platform, Institut Pasteur de Tunis (IPT), Tunis-Belvédère, Tunis 1002, Tunisia;
| | - Najoua Miladi
- Maghreb Medical Center, El Manar III, Tunis 9000, Tunisia;
| | - Vincent Laugel
- Laboratoire de Génétique Médicale, INSERM U1112, Institut de génétique médicale d’Alsace, CRBS, 67000 Strasbourg, France; (C.O.); (V.L.)
| | - Miria Ricchetti
- Institut Pasteur, Team Stability of Nuclear and Mitochondrial DNA, Stem Cells and Development, UMR 3738 CNRS, 25-28 rue du Dr. Roux, 75015 Paris, France; (C.C.); (M.R.)
| | - Ilhem Turki
- LR18SP04 and Department of Child and Adolescent Neurology, National Institute Mongi Ben Hmida of Neurology, Tunis 1007, Tunisia; (I.K.); (I.T.)
| | - Houda Yacoub-Youssef
- Laboratory of Biomedical Genomics and Oncogenetics (LR16IPT05), Institut Pasteur de Tunis, Université Tunis El Manar, El Manar I, Tunis 1002, Tunisia; (K.Z.); (A.C.); (D.N.)
- Correspondence:
| |
Collapse
|
20
|
Yousefipour F, Mahjoobi F. Identification of two novel homozygous mutations in ERCC8 gene in two unrelated consanguineous families with Cockayne syndrome from Iran. Clin Chim Acta 2021; 523:65-71. [PMID: 34461059 DOI: 10.1016/j.cca.2021.08.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Cockayne syndrome (CS) is a rare autosomal recessive disorder with characteristic multisystem involvement including pre- or post-natal growth failure, progressive neurological dysfunction, psychomotor retardation, cerebral atrophy, microcephaly and mental retardation, due to mutations in either the ERCC8/CSA or ERCC6/CSB gene. METHOD We present two Iranian patients with remarkable growth failure, developmental delay, microcephaly, severe speech delay, vision problem, sun sensitivity, hearing loss, dental anomalies, unstable gait, mild contractures in knees, kyphosis and spasticity in lower limbs, balance disorders and typical dysmorphic features including long nose, aged face, large ears and sunken eyes. Clinical evaluation, magnetic resonance imaging, Peripheral blood karyotype, Multiplex ligation-dependent probe amplification (MLPA), and whole-exome sequencing were used to characterize etiology in two patients from two unrelated consanguineous families of Iranian descent with Cockayne syndrome. RESULTS We detected two novel pathogenic mutations in two unrelated families, a homozygous duplication mutation (c.317_320dupAGTG, p.Trp107Ter) and a splicing variant (c.481 + 1G > A) in ERCC8 gene. CONCLUSION WES results together with the characteristic clinical manifestations of Cockayne syndrome, provided an accurate diagnosis for two patients. Also, our study identified two novel variants in Iranian families.
Collapse
|
21
|
Narayanan DL, Tuteja M, McIntyre AD, Hegele RA, Calmels N, Obringer C, Laugel V, Mandal K, Phadke SR. Clinical and Mutation Spectra of Cockayne Syndrome in India. Neurol India 2021; 69:362-366. [PMID: 33904453 DOI: 10.4103/0028-3886.314579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Cockayne syndrome is an autosomal recessive disorder caused by biallelic mutations in ERCC6 or ERCC8 genes. Aims To study the clinical and mutation spectrum of Cockayne syndrome. Setting and Design Medical Genetics Outpatient Department of Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow. This was a prospective study from 2007 to 2015. Materials and Methods Clinical details were recorded, and sequencing of ERCC6 and ERCC8 were performed. Results and Conclusions Of the six families, one family had a homozygous mutation in ERCC8 and the other five families had homozygous mutations in ERCC6. Novel variants in ERCC6 were identified in four families. Phenotypic features may vary from severe to mild, and a strong clinical suspicion is needed for diagnosis during infancy or early childhood. Hence, molecular diagnosis is needed for confirmation of diagnosis in a child with a suspicion of Cockayne syndrome. Prenatal diagnosis can be provided only if molecular diagnosis is established in the proband.
Collapse
Affiliation(s)
- Dhanya L Narayanan
- Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
| | - Moni Tuteja
- Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
| | - Adam D McIntyre
- Department of Medicine and Robarts Research Institute, Western University, London, Ontario, Canada
| | - Robert A Hegele
- Department of Medicine and Robarts Research Institute, Western University, London, Ontario, Canada
| | - Nadege Calmels
- Laboratory of Genetic Diagnosis, Strasbourg University Hospital, 1 place de l'Hospital, Strasbourg, France
| | - Cathy Obringer
- Laboratory of Medical Genetics, Strasbourg University Hospital, 1 place de l'Hospital, Strasbourg, France
| | - Vincent Laugel
- Laboratory of Medical Genetics, Strasbourg University Hospital, 1 place de l'Hospital, Strasbourg, France
| | - Kausik Mandal
- Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
| | - Shubha R Phadke
- Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute, Lucknow, Uttar Pradesh, India
| |
Collapse
|
22
|
Spitz MA, Severac F, Obringer C, Baer S, Le May N, Calmels N, Laugel V. Diagnostic and severity scores for Cockayne syndrome. Orphanet J Rare Dis 2021; 16:63. [PMID: 33536051 PMCID: PMC7860636 DOI: 10.1186/s13023-021-01686-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/06/2021] [Indexed: 11/23/2022] Open
Abstract
Background Cockayne syndrome is a progressive multisystem genetic disorder linked to defective DNA repair and transcription. This rare condition encompasses a very wide spectrum of clinical severity levels ranging from severe prenatal onset to mild adult-onset subtypes. The rarity, complexity and variability of the disease make early diagnosis and severity assessment difficult. Based on similar approaches in other neurodegenerative disorders, we propose to validate diagnostic and severity scores for Cockayne syndrome. Methods Clinical, imaging and genetic data were retrospectively collected from 69 molecularly confirmed CS patients. A clinical diagnostic score and a clinical-radiological diagnostic score for CS were built using a multivariable logistic regression model with a stepwise variable selection procedure. A severity score for CS was designed on five items (head circumference, growth failure, neurosensorial signs, motor autonomy, communication skills) and validated by comparison with classical predefined severity subtypes of CS. Results Short stature, enophtalmos, hearing loss, cataracts, cutaneous photosensitivity, frequent dental caries, enamel hypoplasia, morphological abnormalities of the teeth, areflexia and spasticity were included in the clinical diagnostic score as being the most statistically relevant criteria. Appropriate weights and thresholds were assigned to obtain optimal sensitivity and specificity (95.7% and 86.4% respectively). The severity score was shown to be able to quantitatively differentiate classical predefined subtypes of CS and confirmed the continuous distribution of the clinical presentations in CS. Longitudinal follow-up of the severity score was able to reflect the natural course of the disease. Conclusion The diagnostic and severity scores for CS will facilitate early diagnosis and longitudinal evaluation of future therapeutic interventions. Prospective studies will be needed to confirm these findings.
Collapse
Affiliation(s)
- M A Spitz
- Service de Pédiatrie Spécialisée et Générale, Unité de Neurologie Pédiatrique, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - F Severac
- Groupe Méthode en Recherche Clinique, Service de Santé Publique, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Laboratoire de Biostatistique et d'Informatique Médicale, ICube, UMR 7357, Faculté de Médecine, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - C Obringer
- Laboratoire de Génétique Médicale, Institut de Génétique Médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - S Baer
- Service de Pédiatrie Spécialisée et Générale, Unité de Neurologie Pédiatrique, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - N Le May
- Laboratoire de Génétique Médicale, Institut de Génétique Médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - N Calmels
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - V Laugel
- Service de Pédiatrie Spécialisée et Générale, Unité de Neurologie Pédiatrique, 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.
| |
Collapse
|
23
|
Hussain M, Krishnamurthy S, Patel J, Kim E, Baptiste BA, Croteau DL, Bohr VA. Skin Abnormalities in Disorders with DNA Repair Defects, Premature Aging, and Mitochondrial Dysfunction. J Invest Dermatol 2021; 141:968-975. [PMID: 33353663 DOI: 10.1016/j.jid.2020.10.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/25/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023]
Abstract
Defects in DNA repair pathways and alterations of mitochondrial energy metabolism have been reported in multiple skin disorders. More than 10% of patients with primary mitochondrial dysfunction exhibit dermatological features including rashes and hair and pigmentation abnormalities. Accumulation of oxidative DNA damage and dysfunctional mitochondria affect cellular homeostasis leading to increased apoptosis. Emerging evidence demonstrates that genetic disorders of premature aging that alter DNA repair pathways and cause mitochondrial dysfunction, such as Rothmund-Thomson syndrome, Werner syndrome, and Cockayne syndrome, also exhibit skin disease. This article summarizes recent advances in the research pertaining to these syndromes and molecular mechanisms underlying their skin pathologies.
Collapse
Affiliation(s)
- Mansoor Hussain
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, Maryland, USA
| | | | - Jaimin Patel
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, Maryland, USA
| | - Edward Kim
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, Maryland, USA
| | - Beverly A Baptiste
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, Maryland, USA
| | - Deborah L Croteau
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, Maryland, USA
| | - Vilhelm A Bohr
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, Maryland, USA.
| |
Collapse
|
24
|
Reunert J, van den Heuvel A, Rust S, Marquardt T. Cerebro-oculo-facio-skeletal syndrome caused by the homozygous pathogenic variant Gly47Arg in ERCC2. Am J Med Genet A 2020; 185:930-936. [PMID: 33369099 DOI: 10.1002/ajmg.a.62048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 12/09/2020] [Accepted: 12/12/2020] [Indexed: 12/21/2022]
Abstract
DNA damage repair is a pivotal mechanism in life. The nucleotide excision repair pathway protects the cells against DNA damage and involves XPD, an ATP dependent helicase that is part of the multisubunit protein complex TFIIH. XPD is encoded by the excision repair cross-complementation group 2 gene (ERCC2). Only three patients with cerebro-oculo-facio-skeletal syndrome (COFS), caused by mutations in ERCC2, have been published so far. This report describes a boy with the homozygous amino acid change p.Gly47Arg in XPD. He presented with profound microcephaly, psychomotor retardation, failure to thrive, cutaneous photosensitivity, a bilateral hearing deficit and optic atrophy, thrombocytopenia, and recurrent episodes of pneumonia. We report the first homozygous occurrence of the pathogenic variant Gly47Arg in the ERCC2 gene. Occurring homozygous, this variant was associated with COFS syndrome, leading to early death of the patient at the age of 21 months.
Collapse
Affiliation(s)
- Janine Reunert
- Universitätsklinikum Münster, Klinik für Kinder und Jugendmedizin, Münster, Germany
| | | | - Stephan Rust
- Universitätsklinikum Münster, Klinik für Kinder und Jugendmedizin, Münster, Germany
| | - Thorsten Marquardt
- Universitätsklinikum Münster, Klinik für Kinder und Jugendmedizin, Münster, Germany
| |
Collapse
|
25
|
Baer S, Tuzin N, Kang PB, Mohammed S, Kubota M, van Ierland Y, Busa T, Rossi M, Morel G, Michot C, Baujat G, Durand M, Obringer C, Le May N, Calmels N, Laugel V. Growth charts in Cockayne syndrome type 1 and type 2. Eur J Med Genet 2020; 64:104105. [PMID: 33227433 DOI: 10.1016/j.ejmg.2020.104105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/08/2020] [Accepted: 11/15/2020] [Indexed: 11/29/2022]
Abstract
Cockayne syndrome (CS) is a multisystem degenerative disorder divided in 3 overlapping subtypes, with a continuous phenotypic spectrum: CS2 being the most severe form, CS1 the classical form and CS3 the late-onset form. Failure to thrive and growth difficulties are among the most consistent features of CS, leaving affected individuals vulnerable to numerous medical complications, including adverse effects of undernutrition, abrupt overhydration and overfeeding. There is thus a significant need for specific growth charts. We retrospectively collected growth parameters from genetically-confirmed CS1 and CS2 patients, used the GAMLSS package to construct specific CS growth charts compared to healthy children from WHO and CDC databases. Growth data were obtained from 88 CS patients with a total of 1626 individual growth data points. 49 patients were classified as CS1 and 39 as CS2 with confirmed mutations in CSB/ERCC6, CSA/ERCC8 or ERCC1 genes. Individuals with CS1 initially have normal growth parameters; microcephaly occurs from 2 months whereas onset of weight and height restrictions appear later, between 5 and 22 months. In CS2, growth parameters are already below standard references at birth or drop below the 5th percentile before 3 months. Microcephaly is the first parameter to show a delay, appearing around 2 months in CS1 and at birth in CS2. Height and head circumference are more severely affected in CS2 compared to CS1 whereas weight curves are similar in CS1 and CS2 patients. These new growth charts will serve as a practical tool to improve the nutritional management of children with CS.
Collapse
Affiliation(s)
- Sarah Baer
- Service de Pédiatrie 1, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
| | - Nicolas Tuzin
- Groupe Méthode en Recherche Clinique, Hôpitaux Universitaires de Strasbourg, Nouvel Hôpital Civil, Strasbourg, France
| | - Peter B Kang
- Division of Pediatric Neurology, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL, 32610, USA
| | - Shehla Mohammed
- South East Thames Regional Genetics Service, Guy's and St Thomas' Hospital, Great Maze Pond, London, SE1 9RT, UK
| | - Masaya Kubota
- Division of Neurology, National Center for Child Health and Development, Tokyo, Japan
| | - Yvette van Ierland
- Erasmus University Medical Center, Department of Clinical Genetics, 3000 CA Rotterdam, The Netherlands; ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus MC, Rotterdam, The Netherlands
| | - Tiffany Busa
- Hôpital de la Timone, Medical Genetics, Marseille, Provence-Alpes-Côte d'Azur, France
| | - Massimiliano Rossi
- Centre de référence des anomalies du développement, Service de génétique, Hospices Civils de Lyon & Centre de Recherche en Neurosciences de Lyon, Inserm U1028, UMR CNRS 5292, GENDEV Team, Lyon 1-Claude Bernard University, Bron, France
| | - Godelieve Morel
- Service de Génétique Clinique, Centre de Référence Maladies Rares Centre Labellisé Anomalies du Développement-Ouest, Centre Hospitalier Universitaire de Rennes, 35033, Rennes, France
| | - Caroline Michot
- Service de génétique clinique, CRMR maladies osseuses constitutionnelles, INSERM UMR 1163, Université Paris-Descartes-Sorbonne Paris Cité, Institut Imagine, Hôpital Necker Enfants Malades, Paris, France
| | - Geneviève Baujat
- Service de génétique clinique, CRMR maladies osseuses constitutionnelles, INSERM UMR 1163, Université Paris-Descartes-Sorbonne Paris Cité, Institut Imagine, Hôpital Necker Enfants Malades, Paris, France
| | - Myriam Durand
- Centre d'Investigation Clinique INSERM-CIC 1434, CHRU de Strasbourg, F - 67091, Strasbourg, France
| | - Cathy Obringer
- Laboratoire de Génétique médicale, INSERM U1112, Institut de génétique médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, France
| | - Nicolas Le May
- Laboratoire de Génétique médicale, INSERM U1112, Institut de génétique médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, France
| | - Nadège Calmels
- Laboratoire de Génétique médicale, INSERM U1112, Institut de génétique médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, France; Laboratoires de Diagnostic Génétique, Institut de génétique médicale d'Alsace, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, France
| | - Vincent Laugel
- Service de Pédiatrie 1, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Laboratoire de Génétique médicale, INSERM U1112, Institut de génétique médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, France
| |
Collapse
|
26
|
Lee JH, Kim EW, Croteau DL, Bohr VA. Heterochromatin: an epigenetic point of view in aging. Exp Mol Med 2020; 52:1466-1474. [PMID: 32887933 PMCID: PMC8080806 DOI: 10.1038/s12276-020-00497-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/08/2020] [Accepted: 06/15/2020] [Indexed: 12/19/2022] Open
Abstract
Aging is an inevitable process of life. Defined by progressive physiological and functional loss of tissues and organs, aging increases the risk of mortality for the organism. The aging process is affected by various factors, including genetic and epigenetic ones. Here, we review the chromatin-specific epigenetic changes that occur during normal (chronological) aging and in premature aging diseases. Taking advantage of the reversible nature of epigenetic modifications, we will also discuss possible lifespan expansion strategies through epigenetic modulation, which was considered irreversible until recently.
Collapse
Affiliation(s)
- Jong-Hyuk Lee
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Edward W Kim
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Deborah L Croteau
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA
| | - Vilhelm A Bohr
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, USA. .,Danish Center for Healthy Aging, University of Copenhagen, 2200, Copenhagen, Denmark.
| |
Collapse
|
27
|
Baer S, Obringer C, Julia S, Chelly J, Capri Y, Gras D, Baujat G, Felix TM, Doray B, Sanchez Del Pozo J, Ramos LM, Burglen L, Laugel V, Calmels N. Early-onset nucleotide excision repair disorders with neurological impairment: Clues for early diagnosis and prognostic counseling. Clin Genet 2020; 98:251-260. [PMID: 32557569 DOI: 10.1111/cge.13798] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/28/2020] [Accepted: 06/10/2020] [Indexed: 12/14/2022]
Abstract
Nucleotide excision repair associated diseases comprise overlapping phenotypes and a wide range of outcomes. The early stages still remain under-investigated and underdiagnosed, even although an early recognition of the first symptoms is of utmost importance for appropriate care and genetic counseling. We systematically collected clinical and molecular data from the literature and from newly diagnosed NER patients with neurological impairment, presenting clinical symptoms before the age of 12 months, including foetal cases. One hundred and eighty-five patients were included, 13 with specific symptoms during foetal life. Arthrogryposis, microcephaly, cataracts, and skin anomalies are the most frequently reported signs in early subtypes. Non ERCC6/CSB or ERCC8/CSA genes are overrepresented compared to later onset cohorts: 19% patients of this cohort presented variants in ERCC1, ERCC2/XPD, ERCC3/XPB or ERCC5/XPG. ERCC5/XPG is even the most frequently involved gene in foetal cases (10/13 cases, [4/7 families]). In this cohort, the mutated gene, the age of onset, the type of disease, severe global developmental delay, IUGR and skin anomalies were associated with earlier death. This large survey focuses on specific symptoms that should attract the attention of clinicians towards early-onset NER diagnosis in foetal and neonatal period, without waiting for the completeness of classical criteria.
Collapse
Affiliation(s)
- Sarah Baer
- Service de Pédiatrie 1, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Laboratoires de Diagnostic Génétique, Institut de génétique médicale d'Alsace, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Cathy Obringer
- Laboratoire de Génétique médicale, Institut de génétique médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Sophie Julia
- Service de Génétique Médicale, CHU de Toulouse - Hôpital Purpan, Toulouse, France
| | - Jameleddine Chelly
- Laboratoires de Diagnostic Génétique, Institut de génétique médicale d'Alsace, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Yline Capri
- Service de Génétique Médicale, AP-HP Robert-Debré, Paris, France
| | - Domitille Gras
- Service de Neurologie Pédiatrique, AP-HP Robert-Debré, Paris, France
| | - Geneviève Baujat
- Centre de Référence Maladies Osseuses Constitutionnelles, Département de Génétique, Hôpital Necker-Enfants Malades, Institut Imagine, Paris, France
| | - Têmis Maria Felix
- Medical Genetics Service, Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil
| | - Berenice Doray
- Service de Génétique Médicale, Centre Hospitalier Universitaire Félix Guyon, Bellepierre, France
| | | | - Lina M Ramos
- Pediatric Hospital of Coimbra, Coimbra, Portugal
| | - Lydie Burglen
- Centre de référence des malformations et maladies congénitales du cervelet, Département de génétique et embryologie médicale, APHP, GHUEP, Hôpital Trousseau, Paris, France
| | - 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
| | - Nadège Calmels
- Laboratoires de Diagnostic Génétique, Institut de génétique médicale d'Alsace, Nouvel Hôpital Civil, 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
| |
Collapse
|
28
|
Vessoni AT, Guerra CCC, Kajitani GS, Nascimento LLS, Garcia CCM. Cockayne Syndrome: The many challenges and approaches to understand a multifaceted disease. Genet Mol Biol 2020; 43:e20190085. [PMID: 32453336 PMCID: PMC7250278 DOI: 10.1590/1678-4685-gmb-2019-0085] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 01/15/2020] [Indexed: 01/04/2023] Open
Abstract
The striking and complex phenotype of Cockayne syndrome (CS) patients combines progeria-like features with developmental deficits. Since the establishment of the in vitro culture of skin fibroblasts derived from patients with CS in the 1970s, significant progress has been made in the understanding of the genetic alterations associated with the disease and their impact on molecular, cellular, and organismal functions. In this review, we provide a historic perspective on the research into CS by revisiting seminal papers in this field. We highlighted the great contributions of several researchers in the last decades, ranging from the cloning and characterization of CS genes to the molecular dissection of their roles in DNA repair, transcription, redox processes and metabolism control. We also provide a detailed description of all pathological mutations in genes ERCC6 and ERCC8 reported to date and their impact on CS-related proteins. Finally, we review the contributions (and limitations) of many genetic animal models to the study of CS and how cutting-edge technologies, such as cell reprogramming and state-of-the-art genome editing, are helping us to address unanswered questions.
Collapse
Affiliation(s)
| | - Camila Chaves Coelho Guerra
- Universidade Federal de Ouro Preto, Instituto de Ciências Exatas e
Biológicas, Núcleo de Pesquisa em Ciências Biológicas & Departamento de Ciências
Biológicas, Ouro Preto, MG, Brazil
| | - Gustavo Satoru Kajitani
- Universidade Federal de Ouro Preto, Instituto de Ciências Exatas e
Biológicas, Núcleo de Pesquisa em Ciências Biológicas & Departamento de Ciências
Biológicas, Ouro Preto, MG, Brazil
- Universidade de São Paulo, Instituto de Ciências Biomédicas,
Departamento de Microbiologia, São Paulo,SP, Brazil
| | - Livia Luz Souza Nascimento
- Universidade de São Paulo, Instituto de Ciências Biomédicas,
Departamento de Microbiologia, São Paulo,SP, Brazil
| | - Camila Carrião Machado Garcia
- Universidade Federal de Ouro Preto, Instituto de Ciências Exatas e
Biológicas, Núcleo de Pesquisa em Ciências Biológicas & Departamento de Ciências
Biológicas, Ouro Preto, MG, Brazil
| |
Collapse
|
29
|
Hepatic Failure following Metronidazole in Children with Cockayne Syndrome. Case Rep Pediatr 2020; 2020:9634196. [PMID: 32082677 PMCID: PMC7008298 DOI: 10.1155/2020/9634196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/09/2020] [Indexed: 11/17/2022] Open
Abstract
Cockayne syndrome is an uncommon autosomal recessive disease characterized by microcephaly, abnormal growth, and pathologic premature aging. The purpose of this report is to evaluate liver failure in children with Cockayne syndrome following metronidazole administration. The first case was a 2-year-old boy with Cockayne syndrome. He had been treated with metronidazole for gastroenteritis. 48 hours after treatment initiation, he was hospitalized due to jaundice, intractable vomiting, and agitation. Unfortunately, he died of acute liver failure. The second case was a 5-year-old boy with Cockayne syndrome as well, who had been treated with amoxicillin and metronidazole for a dental infection. He developed jaundice, drowsiness, lethargy, and anorexia after treatment. At hospital, the child received supportive treatment, and his general condition gradually improved. The liver enzyme levels decreased. He was finally discharged in good general condition. The mortality after metronidazole consumption in patients with Cockayne syndrome due to liver failure is very high. The awareness of the dangers of using metronidazole in these patients is valuable.
Collapse
|
30
|
Ribeiro VB, Faria LTRAD, Machado RDL, Barcellos BM, Resende MACD, Videira RLDR. [Anesthesia for a cesarean section on a pregnant patient with Cockayne syndrome: case report]. Rev Bras Anestesiol 2020; 70:51-54. [PMID: 32173062 DOI: 10.1016/j.bjan.2019.10.002] [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: 02/27/2019] [Revised: 10/09/2019] [Accepted: 10/26/2019] [Indexed: 11/28/2022] Open
Abstract
Cockayne syndrome is an autosomal recessive multi-systemic disorder due to DNA repair failure. It was originally described in 1936 in children of small stature, retinal atrophy and deafness, characterized by dwarfism, cachexia, photosensitivity, premature aging and neurologic deficits. The most typical feature is described as birdlike facies: protruding maxilla, facial lipoatrophy, sunken eyes, large ears and thin nose. Difficult airway management with subglottic stenosis and risk of gastric content aspiration has been described. Although the clinical characteristics of Cockayne syndrome have been well described in pediatric publications, there is only one report in the literature on anesthesia for an obstetric patient. We report the case of a pregnant patient diagnosed with Cockayne syndrome, submitted successfully to spinal anesthesia for a cesarean section due to cephalopelvic disproportion. In view of the difficult decision between inducing general anesthesia in a patient with a likely difficult airway, or neuraxial anesthesia in a patient with cardiovascular, respiratory and neurocognitive limitations, we suggest tailored management to reach the best results for the mother and newborn.
Collapse
Affiliation(s)
- Viviane Barrada Ribeiro
- Universidade Federal Fluminense (UFF), Hospital Universitário Antônio Pedro, Niterói, RJ, Brasil
| | | | - Roberta de Lima Machado
- Universidade Federal Fluminense (UFF), Hospital Universitário Antônio Pedro, Niterói, RJ, Brasil
| | - Bruno Mendonça Barcellos
- Universidade Federal Fluminense (UFF), Hospital Universitário Antônio Pedro, Niterói, RJ, Brasil
| | | | | |
Collapse
|
31
|
Dard L, Blanchard W, Hubert C, Lacombe D, Rossignol R. Mitochondrial functions and rare diseases. Mol Aspects Med 2020; 71:100842. [PMID: 32029308 DOI: 10.1016/j.mam.2019.100842] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 12/26/2019] [Accepted: 12/27/2019] [Indexed: 12/19/2022]
Abstract
Mitochondria are dynamic cellular organelles responsible for a large variety of biochemical processes as energy transduction, REDOX signaling, the biosynthesis of hormones and vitamins, inflammation or cell death execution. Cell biology studies established that 1158 human genes encode proteins localized to mitochondria, as registered in MITOCARTA. Clinical studies showed that a large number of these mitochondrial proteins can be altered in expression and function through genetic, epigenetic or biochemical mechanisms including the interaction with environmental toxics or iatrogenic medicine. As a result, pathogenic mitochondrial genetic and functional defects participate to the onset and the progression of a growing number of rare diseases. In this review we provide an exhaustive survey of the biochemical, genetic and clinical studies that demonstrated the implication of mitochondrial dysfunction in human rare diseases. We discuss the striking diversity of the symptoms caused by mitochondrial dysfunction and the strategies proposed for mitochondrial therapy, including a survey of ongoing clinical trials.
Collapse
Affiliation(s)
- L Dard
- Bordeaux University, 33000, Bordeaux, France; INSERM U1211, 33000, Bordeaux, France; CELLOMET, CGFB-146 Rue Léo Saignat, Bordeaux, France
| | - W Blanchard
- Bordeaux University, 33000, Bordeaux, France; INSERM U1211, 33000, Bordeaux, France; CELLOMET, CGFB-146 Rue Léo Saignat, Bordeaux, France
| | - C Hubert
- Bordeaux University, 33000, Bordeaux, France; INSERM U1211, 33000, Bordeaux, France
| | - D Lacombe
- Bordeaux University, 33000, Bordeaux, France; INSERM U1211, 33000, Bordeaux, France; CHU de Bordeaux, Service de Génétique Médicale, F-33076, Bordeaux, France
| | - R Rossignol
- Bordeaux University, 33000, Bordeaux, France; INSERM U1211, 33000, Bordeaux, France; CELLOMET, CGFB-146 Rue Léo Saignat, Bordeaux, France.
| |
Collapse
|
32
|
Petr MA, Tulika T, Carmona-Marin LM, Scheibye-Knudsen M. Protecting the Aging Genome. Trends Cell Biol 2020; 30:117-132. [DOI: 10.1016/j.tcb.2019.12.001] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/27/2019] [Accepted: 12/02/2019] [Indexed: 12/15/2022]
|
33
|
Ribeiro VB, Faria LTRAD, Machado RDL, Barcellos BM, Resende MACD, Videira RLDR. Anesthesia for a cesarean section on a pregnant patient with Cockayne syndrome: case report. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ENGLISH EDITION) 2020. [PMID: 32173062 PMCID: PMC9373294 DOI: 10.1016/j.bjane.2020.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Cockayne syndrome is an autosomal recessive multi-systemic disorder due to DNA repair failure. It was originally described in 1936 in children of small stature, retinal atrophy and deafness, characterized by dwarfism, cachexia, photosensitivity, premature aging and neurologic deficits. The most typical feature is described as birdlike facies: protruding maxilla, facial lipoatrophy, sunken eyes, large ears and thin nose. Difficult airway management with subglottic stenosis and risk of gastric content aspiration has been described. Although the clinical characteristics of Cockayne syndrome have been well described in pediatric publications, there is only one report in the literature on anesthesia for an obstetric patient. We report the case of a pregnant patient diagnosed with Cockayne syndrome, submitted successfully to spinal anesthesia for a cesarean section due to cephalopelvic disproportion. In view of the difficult decision between inducing general anesthesia in a patient with a likely difficult airway, or neuraxial anesthesia in a patient with cardiovascular, respiratory and neurocognitive limitations, we suggest tailored management to reach the best results for the mother and newborn.
Collapse
|
34
|
Lee JH, Demarest TG, Babbar M, Kim EW, Okur MN, De S, Croteau DL, Bohr VA. Cockayne syndrome group B deficiency reduces H3K9me3 chromatin remodeler SETDB1 and exacerbates cellular aging. Nucleic Acids Res 2019; 47:8548-8562. [PMID: 31276581 DOI: 10.1093/nar/gkz568] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 06/09/2019] [Accepted: 06/29/2019] [Indexed: 12/30/2022] Open
Abstract
Cockayne syndrome is an accelerated aging disorder, caused by mutations in the CSA or CSB genes. In CSB-deficient cells, poly (ADP ribose) polymerase (PARP) is persistently activated by unrepaired DNA damage and consumes and depletes cellular nicotinamide adenine dinucleotide, which leads to mitochondrial dysfunction. Here, the distribution of poly (ADP ribose) (PAR) was determined in CSB-deficient cells using ADPr-ChAP (ADP ribose-chromatin affinity purification), and the results show striking enrichment of PAR at transcription start sites, depletion of heterochromatin and downregulation of H3K9me3-specific methyltransferases SUV39H1 and SETDB1. Induced-expression of SETDB1 in CSB-deficient cells downregulated PAR and normalized mitochondrial function. The results suggest that defects in CSB are strongly associated with loss of heterochromatin, downregulation of SETDB1, increased PAR in highly-transcribed regions, and mitochondrial dysfunction.
Collapse
Affiliation(s)
- Jong-Hyuk Lee
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Tyler G Demarest
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Mansi Babbar
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Edward W Kim
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Mustafa N Okur
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Supriyo De
- Laboratory of Genetics and Genomics, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Deborah L Croteau
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Vilhelm A Bohr
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA.,Danish Center for Healthy Aging, University of Copenhagen, 2200 Copenhagen, Denmark
| |
Collapse
|
35
|
Tiwari V, Wilson DM. DNA Damage and Associated DNA Repair Defects in Disease and Premature Aging. Am J Hum Genet 2019; 105:237-257. [PMID: 31374202 PMCID: PMC6693886 DOI: 10.1016/j.ajhg.2019.06.005] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 06/05/2019] [Indexed: 12/14/2022] Open
Abstract
Genetic information is constantly being attacked by intrinsic and extrinsic damaging agents, such as reactive oxygen species, atmospheric radiation, environmental chemicals, and chemotherapeutics. If DNA modifications persist, they can adversely affect the polymerization of DNA or RNA, leading to replication fork collapse or transcription arrest, or can serve as mutagenic templates during nucleic acid synthesis reactions. To combat the deleterious consequences of DNA damage, organisms have developed complex repair networks that remove chemical modifications or aberrant base arrangements and restore the genome to its original state. Not surprisingly, inherited or sporadic defects in DNA repair mechanisms can give rise to cellular outcomes that underlie disease and aging, such as transformation, apoptosis, and senescence. In the review here, we discuss several genetic disorders linked to DNA repair defects, attempting to draw correlations between the nature of the accumulating DNA damage and the pathological endpoints, namely cancer, neurological disease, and premature aging.
Collapse
Affiliation(s)
- Vinod Tiwari
- Laboratory of Molecular Gerontology, National Institute on Aging, Intramural Research Program, National Institutes of Health, 251 Bayview Boulevard, Suite 100, Baltimore, MD 21224, USA.
| | - David M Wilson
- Laboratory of Molecular Gerontology, National Institute on Aging, Intramural Research Program, National Institutes of Health, 251 Bayview Boulevard, Suite 100, Baltimore, MD 21224, USA.
| |
Collapse
|
36
|
Rescue of premature aging defects in Cockayne syndrome stem cells by CRISPR/Cas9-mediated gene correction. Protein Cell 2019; 11:1-22. [PMID: 31037510 PMCID: PMC6949206 DOI: 10.1007/s13238-019-0623-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 03/12/2019] [Indexed: 01/07/2023] Open
Abstract
Cockayne syndrome (CS) is a rare autosomal recessive inherited disorder characterized by a variety of clinical features, including increased sensitivity to sunlight, progressive neurological abnormalities, and the appearance of premature aging. However, the pathogenesis of CS remains unclear due to the limitations of current disease models. Here, we generate integration-free induced pluripotent stem cells (iPSCs) from fibroblasts from a CS patient bearing mutations in CSB/ERCC6 gene and further derive isogenic gene-corrected CS-iPSCs (GC-iPSCs) using the CRISPR/Cas9 system. CS-associated phenotypic defects are recapitulated in CS-iPSC-derived mesenchymal stem cells (MSCs) and neural stem cells (NSCs), both of which display increased susceptibility to DNA damage stress. Premature aging defects in CS-MSCs are rescued by the targeted correction of mutant ERCC6. We next map the transcriptomic landscapes in CS-iPSCs and GC-iPSCs and their somatic stem cell derivatives (MSCs and NSCs) in the absence or presence of ultraviolet (UV) and replicative stresses, revealing that defects in DNA repair account for CS pathologies. Moreover, we generate autologous GC-MSCs free of pathogenic mutation under a cGMP (Current Good Manufacturing Practice)-compliant condition, which hold potential for use as improved biomaterials for future stem cell replacement therapy for CS. Collectively, our models demonstrate novel disease features and molecular mechanisms and lay a foundation for the development of novel therapeutic strategies to treat CS.
Collapse
|
37
|
Zhang D, Dai L, Zhou Z, Hu J, Bai Y, Guo H. Homozygosity mapping and whole exome sequencing reveal a novel ERCC8 mutation in a Chinese consanguineous family with unique cerebellar ataxia. Clin Chim Acta 2019; 494:64-70. [PMID: 30871974 DOI: 10.1016/j.cca.2019.03.1609] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/06/2019] [Accepted: 03/10/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND A consanguineous Chinese family was affected by an apparently novel autosomal recessive disorder characterized by cerebellar ataxia, cutaneous photosensitivity, and mild intellectual disability. METHODS The family was evaluated by homozygosity mapping, haplotype analysis, whole exome sequencing, and candidate gene mutation screening to identify the disease-associated gene and mutation. Bioinformatics methods were used to predict the functional significance of the mutated gene product. ERCC8 mutations and phenotypes were examined. RESULTS All three patients presented cerebellar ataxia, cutaneous photosensitivity, and mild intellectual disability. Whole genome and candidate region linkage analysis in the consanguineous family revealed a maximum logarithm of the odds score at 5q12.1. This homozygous region was confirmed by homozygosity mapping. The pathogenic missense mutation p.Gly257Arg affecting an evolutionary highly conserved amino acid was identified in ERCC8 at 5q12.1. Integrated application of whole exome sequencing and homozygosity mapping is an efficient approach for gene mapping and mutation identification in consanguineous families. CONCLUSIONS We identified a novel ERCC8 mutation and new unique disease phenotype. These results also confirmed the genotype-phenotype relationship between mutations in ERCC8 and clinical findings.
Collapse
Affiliation(s)
- Danyan Zhang
- Department of Medical Genetics, College of Basic Medicine, Army Medical University (Third Military Medical University), 30#, Gaotanyan St., Shapingba District, Chongqing 400038, PR China; Key Laboratory of Birth Defects and Reproductive Health of National Health and Family Planning Commission (Chongqing Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, 18#, Honghuang Road, Jiangbei District, Chongqing 400020, PR China
| | - Limeng Dai
- Department of Medical Genetics, College of Basic Medicine, Army Medical University (Third Military Medical University), 30#, Gaotanyan St., Shapingba District, Chongqing 400038, PR China
| | - Zhenhua Zhou
- Department of Neurology, Southwest Hospital, Army Medical University (Third Military Medical University), 30#, Gaotanyan St., Shapingba District, Chongqing 400038, PR China
| | - Jun Hu
- Department of Neurology, Southwest Hospital, Army Medical University (Third Military Medical University), 30#, Gaotanyan St., Shapingba District, Chongqing 400038, PR China
| | - Yun Bai
- Department of Medical Genetics, College of Basic Medicine, Army Medical University (Third Military Medical University), 30#, Gaotanyan St., Shapingba District, Chongqing 400038, PR China.
| | - Hong Guo
- Department of Medical Genetics, College of Basic Medicine, Army Medical University (Third Military Medical University), 30#, Gaotanyan St., Shapingba District, Chongqing 400038, PR China.
| |
Collapse
|
38
|
Stern-Delfils A, Spitz MA, Durand M, Obringer C, Calmels N, Olagne J, Pillay K, Fieggen K, Laugel V, Zaloszyc A. Renal disease in Cockayne syndrome. Eur J Med Genet 2019; 63:103612. [PMID: 30630117 DOI: 10.1016/j.ejmg.2019.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 12/05/2018] [Accepted: 01/03/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Cockayne Syndrome (CS) is a rare autosomal recessive multi-systemic disorder, characterized; by developmental delay, microcephaly, severe growth failure and sensorial impairment. Renal complications have been reported but remain underinvestigated. The objective of this study was to perform a review of renal disease in a cohort of CS patients. METHODS We retrospectively collected relevant clinical, biochemical and genetic data from a cohort of 136 genetically confirmed CS patients. Blood pressure (BP), proteinuria, albuminemia, uric acid, creatinine clearance, renal ultrasounds and renal biopsy result were analysed. RESULTS Thirty-two patients had a renal investigation. We found that 69% of investigated patients had a renal disorder and/or an elevated BP. Fifteen out of 21 patients (71% of investigated patients) had an increased BP, 10 out of 16 patients (62% of investigated patients) presented with proteinuria and 4 of them had a nephrotic syndrome. Thirteen patients out of 29 (45%) had a decreased Glomerular Filtration Rate (GFR), 18 out of 25 patients (72%) had a hyperuricemia. No correlation with the genetic background or clinical types of CS was found, except for the renal clearance. CONCLUSIONS Renal disease, increased blood pressure and hyperuricemia were highly prevalent in our study. We believe that CS patients should benefit from a nephrological follow-up and that anti-uric acid drug and Angiotensin-converting enzyme (ACE) inhibitor should be discussed in these patients.
Collapse
Affiliation(s)
- Amélie Stern-Delfils
- Réanimation néonatale, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Marie-Aude Spitz
- Service de Pédiatrie 1, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Centre d'Investigation Clinique INSERM-CIC 1434, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Myriam Durand
- Centre d'Investigation Clinique INSERM-CIC 1434, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Cathy Obringer
- Laboratoire de Génétique médicale, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, France
| | - Nadège Calmels
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Jérôme Olagne
- Service de Néphrologie-Transplantation, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Département de pathologie, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Komala Pillay
- Department of Pathology, National Health Laboratory Services, University Cape Town, Cape Town, South Africa
| | - Karen Fieggen
- Division of Human Genetics, Department of Medicine, University Cape Town, Cape Town, South Africa
| | - Vincent Laugel
- Service de Pédiatrie 1, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Laboratoire de Génétique médicale, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, France
| | - Ariane Zaloszyc
- Service de Pédiatrie 1, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
| |
Collapse
|
39
|
Sabatella M, Theil AF, Ribeiro-Silva C, Slyskova J, Thijssen K, Voskamp C, Lans H, Vermeulen W. Repair protein persistence at DNA lesions characterizes XPF defect with Cockayne syndrome features. Nucleic Acids Res 2018; 46:9563-9577. [PMID: 30165384 PMCID: PMC6182131 DOI: 10.1093/nar/gky774] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 07/19/2018] [Accepted: 08/16/2018] [Indexed: 12/28/2022] Open
Abstract
The structure-specific ERCC1-XPF endonuclease plays a key role in DNA damage excision by nucleotide excision repair (NER) and interstrand crosslink repair. Mutations in this complex can either cause xeroderma pigmentosum (XP) or XP combined with Cockayne syndrome (XPCS-complex) or Fanconi anemia. However, most patients carry compound heterozygous mutations, which confounds the dissection of the phenotypic consequences for each of the identified XPF alleles. Here, we analyzed the functional impact of individual pathogenic XPF alleles on NER. We show that XP-causing mutations diminish XPF recruitment to DNA damage and only mildly affect global genome NER. In contrast, an XPCS-complex-specific mutation causes persistent recruitment of XPF and the upstream core NER machinery to DNA damage and severely impairs both global genome and transcription-coupled NER. Remarkably, persistence of NER factors at DNA damage appears to be a common feature of XPCS-complex cells, suggesting that this could be a determining factor contributing to the development of additional developmental and/or neurodegenerative features in XP patients.
Collapse
Affiliation(s)
- Mariangela Sabatella
- Department of Molecular Genetics, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
- Oncode Institute, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
| | - Arjan F Theil
- Department of Molecular Genetics, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
- Oncode Institute, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
| | - Cristina Ribeiro-Silva
- Department of Molecular Genetics, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
- Oncode Institute, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
| | - Jana Slyskova
- Department of Molecular Genetics, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
- Oncode Institute, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
| | - Karen Thijssen
- Department of Molecular Genetics, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
- Oncode Institute, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
| | - Chantal Voskamp
- Department of Molecular Genetics, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
| | - Hannes Lans
- Department of Molecular Genetics, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
- Oncode Institute, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
| | - Wim Vermeulen
- Department of Molecular Genetics, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
- Oncode Institute, Erasmus MC, University Erasmus Medical Center Rotterdam, 3000 CA, The Netherlands
| |
Collapse
|
40
|
First molecular study in Lebanese patients with Cockayne syndrome and report of a novel mutation in ERCC8 gene. BMC MEDICAL GENETICS 2018; 19:161. [PMID: 30200888 PMCID: PMC6131905 DOI: 10.1186/s12881-018-0677-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 08/31/2018] [Indexed: 11/18/2022]
Abstract
Background Cockayne Syndrome (CS) is a rare autosomal recessive disorder characterized by neurological and sensorial impairment, dwarfism, microcephaly and photosensitivity. CS is caused by mutations in ERCC6 (CSB) or ERCC8 (CSA) genes. Methods Three patients with CS were referred to the Medical Genetics Unit of Saint Joseph University. Sanger sequencing of both ERCC8 and ERCC6 genes was performed: ERCC8 was tested in all patients while ERCC6 in one of them. Results Sequencing led to the identification of three homozygous mutations, two in ERCC8 (p.Y322* and c.843 + 1G > C) and one in ERCC6 (p.R670W). All mutations were previously reported as pathogenic except for the c.843 + 1G > C splice site mutation in ERCC8 which is novel. Conclusions Molecular diagnosis was established in all patients included in our study. A genotype-phenotype correlation is discussed and a link, between mutations and some specific religious communities in Lebanon, is suggested. Electronic supplementary material The online version of this article (10.1186/s12881-018-0677-7) contains supplementary material, which is available to authorized users.
Collapse
|
41
|
Calmels N, Botta E, Jia N, Fawcett H, Nardo T, Nakazawa Y, Lanzafame M, Moriwaki S, Sugita K, Kubota M, Obringer C, Spitz MA, Stefanini M, Laugel V, Orioli D, Ogi T, Lehmann AR. Functional and clinical relevance of novel mutations in a large cohort of patients with Cockayne syndrome. J Med Genet 2018; 55:329-343. [PMID: 29572252 DOI: 10.1136/jmedgenet-2017-104877] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 10/26/2017] [Accepted: 11/19/2017] [Indexed: 01/20/2023]
Abstract
BACKGROUND Cockayne syndrome (CS) is a rare, autosomal recessive multisystem disorder characterised by prenatal or postnatal growth failure, progressive neurological dysfunction, ocular and skeletal abnormalities and premature ageing. About half of the patients with symptoms diagnostic for CS show cutaneous photosensitivity and an abnormal cellular response to UV light due to mutations in either the ERCC8/CSA or ERCC6/CSB gene. Studies performed thus far have failed to delineate clear genotype-phenotype relationships. We have carried out a four-centre clinical, molecular and cellular analysis of 124 patients with CS. METHODS AND RESULTS We assigned 39 patients to the ERCC8/CSA and 85 to the ERCC6/CSB genes. Most of the genetic variants were truncations. The missense variants were distributed non-randomly with concentrations in relatively short regions of the respective proteins. Our analyses revealed several hotspots and founder mutations in ERCC6/CSB. Although no unequivocal genotype-phenotype relationships could be made, patients were more likely to have severe clinical features if the mutation was downstream of the PiggyBac insertion in intron 5 of ERCC6/CSB than if it was upstream. Also a higher proportion of severely affected patients was found with mutations in ERCC6/CSB than in ERCC8/CSA. CONCLUSION By identifying >70 novel homozygous or compound heterozygous genetic variants in 124 patients with CS with different disease severity and ethnic backgrounds, we considerably broaden the CSA and CSB mutation spectrum responsible for CS. Besides providing information relevant for diagnosis of and genetic counselling for this devastating disorder, this study improves the definition of the puzzling genotype-phenotype relationships in patients with CS.
Collapse
Affiliation(s)
- Nadege Calmels
- Laboratoire de Diagnostic Génétique, Nouvel Hôpital Civil, Strasbourg, France
| | - Elena Botta
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche, Pavia, Italy
| | - Nan Jia
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan
| | - Heather Fawcett
- Genome Damage and Stability Centre, University of Sussex, Brighton, UK
| | - Tiziana Nardo
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche, Pavia, Italy
| | - Yuka Nakazawa
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan.,Nagasaki University Research Centre for Genomic Instability and Carcinogenesis (NRGIC), Nagasaki, Japan.,Department of Genome Repair, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Manuela Lanzafame
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche, Pavia, Italy
| | | | - Katsuo Sugita
- Division of Child Health, Faculty of Education, Chiba University, Chiba, Japan
| | - Masaya Kubota
- Division of Neurology, National Center for Child Health and Development, Tokyo, France
| | - Cathy Obringer
- Faculté de Médecine, Laboratoire de Génétique Médicale, Strasbourg, France
| | - Marie-Aude Spitz
- Départementde Pédiatrie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Miria Stefanini
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche, Pavia, Italy
| | - Vincent Laugel
- Faculté de Médecine, Laboratoire de Génétique Médicale, Strasbourg, France.,Départementde Pédiatrie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Donata Orioli
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche, Pavia, Italy
| | - Tomoo Ogi
- Department of Genetics, Research Institute of Environmental Medicine (RIeM), Nagoya University, Nagoya, Japan.,Nagasaki University Research Centre for Genomic Instability and Carcinogenesis (NRGIC), Nagasaki, Japan.,Department of Genome Repair, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | | |
Collapse
|
42
|
Neben CL, Tuzon CT, Mao X, Lay FD, Merrill AE. FGFR2 mutations in bent bone dysplasia syndrome activate nucleolar stress and perturb cell fate determination. Hum Mol Genet 2018; 26:3253-3270. [PMID: 28595297 DOI: 10.1093/hmg/ddx209] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 05/31/2017] [Indexed: 12/21/2022] Open
Abstract
Fibroblast Growth Factor (FGF) signaling promotes self-renewal in progenitor cells by encouraging proliferation and inhibiting cellular senescence. Yet, these beneficial effects can be hijacked by disease-causing mutations in FGF receptor (FGFR) during embryogenesis. By studying dominant FGFR2 mutations that are germline in bent bone dysplasia syndrome (BBDS), we reveal a mechanistic connection between FGFR2, ribosome biogenesis, and cellular stress that links cell fate determination to disease pathology. We previously showed that FGFR2 mutations in BBDS, which amplify nucleolar targeting of FGFR2, activate ribosomal DNA (rDNA) transcription and delay differentiation in osteoprogenitor cells and patient-derived bone. Here we find that the BBDS mutations augment the ability of FGFR2 to recruit histone-remodeling factors that epigenetically activate transcriptionally silent rDNA. Nucleolar morphology is controlled by chromatin structure, and the high levels of euchromatic rDNA induced by the BBDS mutations direct nucleolar disorganization, alter ribosome biogenesis, and activate the Rpl11-Mdm2-p53 nucleolar stress response pathway. Inhibition of p53 in cells expressing the FGFR2 mutations in BBDS rescues delayed osteoblast differentiation, suggesting that p53 activation is an essential pathogenic factor in, and potential therapeutic target for, BBDS. This work establishes rDNA as developmentally regulated loci that receive direct input from FGF signaling to balance self-renewal and cell fate determination.
Collapse
Affiliation(s)
- Cynthia L Neben
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry.,Department of Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Creighton T Tuzon
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry.,Department of Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Xiaojing Mao
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry.,Department of Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Fides D Lay
- Department of Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Amy E Merrill
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry.,Department of Biochemistry and Molecular Biology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| |
Collapse
|
43
|
Diseases Associated with Mutation of Replication and Repair Proteins. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1076:215-234. [PMID: 29951822 DOI: 10.1007/978-981-13-0529-0_12] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alterations in proteins that function in DNA replication and repair have been implicated in the development of human diseases including cancer, premature ageing, skeletal disorders, mental retardation, microcephaly, and neurodegeneration. Drosophila has orthologues of most human replication and repair proteins and high conservation of the relevant cellular pathways, thus providing a versatile system in which to study how these pathways are corrupted leading to the diseased state. In this chapter I will briefly review the diseases associated with defects in replication and repair proteins and discuss how past and future studies on the Drosophila orthologues of such proteins can contribute to the dissection of the mechanisms involved in disease development.
Collapse
|
44
|
Yew YW, Giordano CN, Spivak G, Lim HW. Understanding photodermatoses associated with defective DNA repair: Photosensitive syndromes without associated cancer predisposition. J Am Acad Dermatol 2017; 75:873-882. [PMID: 27745642 DOI: 10.1016/j.jaad.2016.03.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 02/25/2016] [Accepted: 03/07/2016] [Indexed: 11/17/2022]
Abstract
Photodermatoses associated with defective DNA repair are a group of photosensitive hereditary skin disorders. In this review, we focus on diseases and syndromes with defective nucleotide excision repair that are not accompanied by an increased risk of cutaneous malignancies despite having photosensitivity. Specifically, the gene mutations and transcription defects, epidemiology, and clinical features of Cockayne syndrome, cerebro-oculo-facial-skeletal syndrome, ultraviolet-sensitive syndrome, and trichothiodystrophy will be discussed. These conditions may also have other extracutaneous involvement affecting the neurologic system and growth and development. Rigorous photoprotection remains an important component of the management of these inherited DNA repair-deficiency photodermatoses.
Collapse
Affiliation(s)
- Yik Weng Yew
- Department of Dermatology, National Skin Centre, Singapore
| | | | - Graciela Spivak
- Department of Biology, Stanford University, Stanford, California
| | - Henry W Lim
- Department of Dermatology, Henry Ford Hospital, Detroit, Michigan.
| |
Collapse
|
45
|
Abstract
Xeroderma pigmentosum-Cockayne syndrome complex is a very rare multisystem degenerative disorder (Orpha: 220295; OMIM: 278730, 278760, 278780, 610651). Published information on XP-CS is mostly scattered throughout the literature. We compiled statistics related to symptom prevalence in XP-CS and have written a clinical description of the syndrome. We also drew on clinical practices used in XP and in Cockayne syndrome without XP to aid management of XP-CS. Extensive searches of the literature identified 43 XP-CS patients. The diagnosis had been confirmed with molecular or biochemical methods in 42 of them. Clinical features of each patient were summarized in spreadsheets and summary statistics were generated from this data. XP patients are classified into complementation groups according to the gene that is mutated. There are four groups in XP-CS, and classification was available for 42 patients. Twenty-one were in the XP-G complementation group, 13 in XP-D, 5 in XP-B, and 3 in XP-F. Overall, the clinical features of XP-CS are very similar to those of CS without XP, with the exception of skin cancers in XP-CS. However, one intriguing finding was that cancer incidence was lower in XP-CS compared to XP alone or XP-neurological disorder. The cancer rate in XP-CS was higher than in CS without XP, an unsurprising finding. There is preliminary evidence for the existence of severity groups in XP-CS, as is the case in CS. Although health problems in XP-CS vary both in severity and in when they the first occur, there was overall homogeneity between all complementation groups and putative severity groups. Severely affected patients met fewer milestones and died at younger ages compared to more mildly affected patients.
Collapse
|
46
|
Blin-Rochemaure N, Allani-Essid N, Carlier R, Laugel V, Quijano-Roy S. [The place of neuropathy in the early diagnosis of Cockayne syndrome: Report on two siblings]. Arch Pediatr 2017; 24:353-359. [PMID: 28258862 DOI: 10.1016/j.arcped.2016.12.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 07/21/2016] [Accepted: 12/29/2016] [Indexed: 11/15/2022]
Abstract
Two siblings affected with Cockayne syndrome (CS) are described: this diagnosis was suggested by the finding of a demyelinating neuropathy on electromyography in both children and consistent clinical features. CS is a rare genetic disorder with severe prognosis and a highly varied phenotype, making early diagnosis difficult. Taking into account these two cases and the literature, the current diagnosis criteria are insufficiently specific and appear late: the diagnosis may be delayed because multi-organ involvement and sensorial impairment suggests more frequent neurometabolic disorders. Neuroradiologic abnormalities are suggestive but may occur later. The finding of a demyelinating peripheral neuropathy seems to be a more useful marker to suspect this disorder in the presence of other clinical features. Further studies are required to better define the chronology of the symptoms, not only for adequate genetic counseling and eventual prenatal diagnosis, but also to assess the efficacy of future therapies.
Collapse
Affiliation(s)
- N Blin-Rochemaure
- Unité des troubles des apprentissages et du langage, service de pédo-psychiatrie, hôpital René-Dubos, 6, avenue de l'Île-de-France, 95300 Pontoise, France; Service de neurologie et réanimation pédiatriques, hôpital Raymond-Poincaré, hôpitaux universitaires Paris-Île-de-France Ouest, AP-HP, 104, boulevard Raymond-Poincaré, 92380 Garches, France.
| | - N Allani-Essid
- Service de neurologie et réanimation pédiatriques, hôpital Raymond-Poincaré, hôpitaux universitaires Paris-Île-de-France Ouest, AP-HP, 104, boulevard Raymond-Poincaré, 92380 Garches, France
| | - R Carlier
- Service de radiologie, hôpital Raymond-Poincaré, AP-HP, 104, boulevard Raymond-Poincaré, 92380 Garches, France; Centre de référence de maladies neuromusculaires Garches-Necker-Mondor-Hendaye (GNMH), France; U1179 UVSQ - Inserm, université de Versailles-Saint-Quentin, 78180 Montigny, France; FILNEMUS, Réseau national français de la filière neuromusculaire, France
| | - V Laugel
- Inserm 1112, laboratoire de génétique médicale, faculté de médecine, 67085 Strasbourg, France
| | - S Quijano-Roy
- Service de neurologie et réanimation pédiatriques, hôpital Raymond-Poincaré, hôpitaux universitaires Paris-Île-de-France Ouest, AP-HP, 104, boulevard Raymond-Poincaré, 92380 Garches, France; Centre de référence de maladies neuromusculaires Garches-Necker-Mondor-Hendaye (GNMH), France; U1179 UVSQ - Inserm, université de Versailles-Saint-Quentin, 78180 Montigny, France; FILNEMUS, Réseau national français de la filière neuromusculaire, France
| |
Collapse
|
47
|
Caputo M, Balzerano A, Arisi I, D’Onofrio M, Brandi R, Bongiorni S, Brancorsini S, Frontini M, Proietti-De-Santis L. CSB ablation induced apoptosis is mediated by increased endoplasmic reticulum stress response. PLoS One 2017; 12:e0172399. [PMID: 28253359 PMCID: PMC5333825 DOI: 10.1371/journal.pone.0172399] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 02/03/2017] [Indexed: 12/17/2022] Open
Abstract
The DNA repair protein Cockayne syndrome group B (CSB) has been recently identified as a promising anticancer target. Suppression, by antisense technology, of this protein causes devastating effects on tumor cells viability, through a massive induction of apoptosis, while being non-toxic to non-transformed cells. To gain insights into the mechanisms underlying the pro-apoptotic effects observed after CSB ablation, global gene expression patterns were determined, to identify genes that were significantly differentially regulated as a function of CSB expression. Our findings revealed that response to endoplasmic reticulum stress and response to unfolded proteins were ranked top amongst the cellular processes affected by CSB suppression. The major components of the endoplasmic reticulum stress-mediated apoptosis pathway, including pro-apoptotic factors downstream of the ATF3-CHOP cascade, were dramatically up-regulated. Altogether our findings add new pieces to the understanding of CSB mechanisms of action and to the molecular basis of CS syndrome.
Collapse
Affiliation(s)
- Manuela Caputo
- Unit of Molecular Genetics of Aging—Department of Ecology and Biology—University of Tuscia, Viterbo, Italy
| | - Alessio Balzerano
- Unit of Molecular Genetics of Aging—Department of Ecology and Biology—University of Tuscia, Viterbo, Italy
| | - Ivan Arisi
- Genomics Facility, European Brain Research Institute (EBRI) “Rita Levi-Montalcini”, Rome, Italy
| | - Mara D’Onofrio
- Genomics Facility, European Brain Research Institute (EBRI) “Rita Levi-Montalcini”, Rome, Italy
| | - Rossella Brandi
- Genomics Facility, European Brain Research Institute (EBRI) “Rita Levi-Montalcini”, Rome, Italy
| | - Silvia Bongiorni
- Unit of Molecular Genetics of Aging—Department of Ecology and Biology—University of Tuscia, Viterbo, Italy
| | - Stefano Brancorsini
- Department of Experimental Medicine—Section of Terni, University of Perugia, Terni, Italy
| | - Mattia Frontini
- Department of Haematology, University of Cambridge, Cambridge Biomedical Campus, Cambridge, United Kingdom
- National Health Service (NHS) Blood and Transplant, Cambridge Biomedical Campus, Cambridge, United Kingdom
- British Heart Foundation Centre of Excellence, University of Cambridge, Cambridge Biomedical Campus, Cambridge, United Kingdom
| | - Luca Proietti-De-Santis
- Unit of Molecular Genetics of Aging—Department of Ecology and Biology—University of Tuscia, Viterbo, Italy
- * E-mail:
| |
Collapse
|
48
|
Taghdiri M, Dastsooz H, Fardaei M, Mohammadi S, Farazi Fard MA, Faghihi MA. A Novel Mutation in ERCC8 Gene Causing Cockayne Syndrome. Front Pediatr 2017; 5:169. [PMID: 28848724 PMCID: PMC5552663 DOI: 10.3389/fped.2017.00169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 07/18/2017] [Indexed: 02/01/2023] Open
Abstract
Cockayne syndrome (CS) is a rare autosomal recessive multisystem disorder characterized by impaired neurological and sensory functions, cachectic dwarfism, microcephaly, and photosensitivity. This syndrome shows a variable age of onset and rate of progression, and its phenotypic spectrum include a wide range of severity. Due to the progressive nature of this disorder, diagnosis can be more important when additional signs and symptoms appear gradually and become steadily worse over time. Therefore, mutation analysis of genes involved in CS pathogenesis can be helpful to confirm the suspected clinical diagnosis. Here, we report a novel mutation in ERCC8 gene in a 16-year-old boy who suffers from poor weight gain, short stature, microcephaly, intellectual disability, and photosensitivity. The patient was born to consanguineous family with no previous documented disease in his parents. To identify disease-causing mutation in the patient, whole exome sequencing utilizing next-generation sequencing on an Illumina HiSeq 2000 platform was performed. Results revealed a novel homozygote mutation in ERCC8 gene (NM_000082: exon 11, c.1122G>C) in our patient. Another gene (ERCC6), which is also involved in CS did not have any disease-causing mutations in the proband. The new identified mutation was then confirmed by Sanger sequencing in the proband, his parents, and extended family members, confirming co-segregation with the disease. In addition, different bioinformatics programs which included MutationTaster, I-Mutant v2.0, NNSplice, Combined Annotation Dependent Depletion, The PhastCons, Genomic Evolutationary Rate Profiling conservation score, and T-Coffee Multiple Sequence Alignment predicted the pathogenicity of the mutation. Our study identified a rare novel mutation in ERCC8 gene and help to provide accurate genetic counseling and prenatal diagnosis to minimize new affected individuals in this family.
Collapse
Affiliation(s)
- Maryam Taghdiri
- Genetic Counseling Center, Shiraz Welfare Organization, Shiraz, Iran.,Comprehensive Medical Genetic Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hassan Dastsooz
- Comprehensive Medical Genetic Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Majid Fardaei
- Comprehensive Medical Genetic Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Medical Genetics, Shiraz University of Medical Sciences, Shiraz, Iran.,Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Sanaz Mohammadi
- Comprehensive Medical Genetic Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Mohammad Ali Faghihi
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, United States
| |
Collapse
|
49
|
Karikkineth AC, Scheibye-Knudsen M, Fivenson E, Croteau DL, Bohr VA. Cockayne syndrome: Clinical features, model systems and pathways. Ageing Res Rev 2017; 33:3-17. [PMID: 27507608 PMCID: PMC5195851 DOI: 10.1016/j.arr.2016.08.002] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 07/29/2016] [Accepted: 08/04/2016] [Indexed: 12/12/2022]
Abstract
Cockayne syndrome (CS) is a disorder characterized by a variety of clinical features including cachectic dwarfism, severe neurological manifestations including microcephaly and cognitive deficits, pigmentary retinopathy, cataracts, sensorineural deafness, and ambulatory and feeding difficulties, leading to death by 12 years of age on average. It is an autosomal recessive disorder, with a prevalence of approximately 2.5 per million. There are several phenotypes (1-3) and two complementation groups (CSA and CSB), and CS overlaps with xeroderma pigmentosum (XP). It has been considered a progeria, and many of the clinical features resemble accelerated aging. As such, the study of CS affords an opportunity to better understand the underlying mechanisms of aging. The molecular basis of CS has traditionally been ascribed to defects in transcription and transcription-coupled nucleotide excision repair (TC-NER). However, recent work suggests that defects in base excision DNA repair and mitochondrial functions may also play key roles. This opens up the possibility for molecular interventions in CS, and by extrapolation, possibly in aging.
Collapse
Affiliation(s)
- Ajoy C Karikkineth
- Clinical Research Branch, National Institute on Aging, Baltimore, MD, USA
| | - Morten Scheibye-Knudsen
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, MD, USA; Department of Cellular and Molecular Medicine, University of Copenhagen, Denmark
| | - Elayne Fivenson
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, MD, USA
| | - Deborah L Croteau
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, MD, USA
| | - Vilhelm A Bohr
- Laboratory of Molecular Gerontology, National Institute on Aging, Baltimore, MD, USA.
| |
Collapse
|
50
|
Brace LE, Vose SC, Stanya K, Gathungu RM, Marur VR, Longchamp A, Treviño-Villarreal H, Mejia P, Vargas D, Inouye K, Bronson RT, Lee CH, Neilan E, Kristal BS, Mitchell JR. Increased oxidative phosphorylation in response to acute and chronic DNA damage. NPJ Aging Mech Dis 2016; 2:16022. [PMID: 28721274 PMCID: PMC5514997 DOI: 10.1038/npjamd.2016.22] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 06/11/2016] [Accepted: 07/25/2016] [Indexed: 12/25/2022] Open
Abstract
Accumulation of DNA damage is intricately linked to aging, aging-related diseases and progeroid syndromes such as Cockayne syndrome (CS). Free radicals from endogenous oxidative energy metabolism can damage DNA, however the potential of acute or chronic DNA damage to modulate cellular and/or organismal energy metabolism remains largely unexplored. We modeled chronic endogenous genotoxic stress using a DNA repair-deficient Csa-/-|Xpa-/- mouse model of CS. Exogenous genotoxic stress was modeled in mice in vivo and primary cells in vitro treated with different genotoxins giving rise to diverse spectrums of lesions, including ultraviolet radiation, intrastrand crosslinking agents and ionizing radiation. Both chronic endogenous and acute exogenous genotoxic stress increased mitochondrial fatty acid oxidation (FAO) on the organismal level, manifested by increased oxygen consumption, reduced respiratory exchange ratio, progressive adipose loss and increased FAO in tissues ex vivo. In multiple primary cell types, the metabolic response to different genotoxins manifested as a cell-autonomous increase in oxidative phosphorylation (OXPHOS) subsequent to a transient decline in steady-state NAD+ and ATP levels, and required the DNA damage sensor PARP-1 and energy-sensing kinase AMPK. We conclude that increased FAO/OXPHOS is a general, beneficial, adaptive response to DNA damage on cellular and organismal levels, illustrating a fundamental link between genotoxic stress and energy metabolism driven by the energetic cost of DNA damage. Our study points to therapeutic opportunities to mitigate detrimental effects of DNA damage on primary cells in the context of radio/chemotherapy or progeroid syndromes.
Collapse
Affiliation(s)
- Lear E Brace
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Sarah C Vose
- Division of Environmental Health, Vermont Department of Health, Burlington, VT, USA
| | - Kristopher Stanya
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Rose M Gathungu
- Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
| | - Vasant R Marur
- Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
| | - Alban Longchamp
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | | | - Pedro Mejia
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Dorathy Vargas
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Karen Inouye
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Roderick T Bronson
- Rodent Histopathology Core, Department of Pathology, Harvard Medical School, Boston, MA, USA
| | - Chih-Hao Lee
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Edward Neilan
- Genetics and Metabolism Division, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Bruce S Kristal
- Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
| | - James R Mitchell
- Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| |
Collapse
|