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Zulfiqar S, Moawia A, Waseem SS, Ali Z, Ramzan S, Anjum I, Baig SM, Tariq M. Whole exome sequencing identifies a novel variant causing cockayne syndrome type I in a consanguineous Pakistani family. Int J Neurosci 2024; 134:28-33. [PMID: 35645363 DOI: 10.1080/00207454.2022.2082967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 05/13/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Cockayne syndrome (CS) is a rare neurodegenerative disorder characterized by impaired neurological functions, cachectic dwarfism, microcephaly and photosensitivity. Complementation assays identify two groups of this disorder, CS type I (CSA) and CS type II (CSB), caused by mutations in ERCC8 and ERCC6, respectively. OBJECTIVES This study aimed to investigate the genetic basis of a consanguineous Pakistani family with three affected individuals presenting with typical clinical symptoms of CS. METHODS We employed whole exome sequencing of the proband and then Sanger sequenced all the family members to confirm its segregation in the family. Different bioinformatics tools were used to predict pathogenicity of this variant. RESULTS Variants were filtered according to the pedigree structure. We identified a novel homozygous variant (c.202A>T; p.Ile68Phe) in ERCC8 gene in the proband. The variant was found to segregate in the family. CONCLUSIONS These findings add to the genetic heterogeneity of ERCC8 and expands the mutation spectrum. Also, identification of this variant can facilitate prenatal diagnosis/genetic counselling set ups in Pakistan where this disease largely remains undiagnosed.
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Affiliation(s)
- Shumaila Zulfiqar
- Department of Biotechnology, Kinnaird College for Women, Lahore, Pakistan
| | - Abubakar Moawia
- Institute of Human Genetics, Ulm University and Ulm University Medical Centre, Ulm, Germany
| | - Syeda Seema Waseem
- Cologne Center for Genomics (CCG), Faculty of Medicine, University Hospital, University of Cologne, Cologne, Germany
| | - Zafar Ali
- Centre for Biotechnology and Microbiology, University of Swat, Swat, Pakistan
| | - Shafaq Ramzan
- National Institute for Biotechnology and Genetic Engineering College (NIBGE-C), Faisalabad, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - Iram Anjum
- Department of Biotechnology, Kinnaird College for Women, Lahore, Pakistan
| | - Shahid Mahmood Baig
- National Institute for Biotechnology and Genetic Engineering College (NIBGE-C), Faisalabad, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
- Pakistan Science Foundation, Islamabad, Pakistan
| | - Muhammad Tariq
- National Institute for Biotechnology and Genetic Engineering College (NIBGE-C), Faisalabad, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
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Liu MW, Hu CF, Jin JY, Xiang R, Fan LL, Li YL, Zhu L. A compound heterozygous mutation of ERCC8 is responsible for a family with Cockayne syndrome. Mol Biol Rep 2024; 51:371. [PMID: 38411728 DOI: 10.1007/s11033-024-09235-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/09/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Cockayne syndrome is an inherited heterogeneous defect in transcription-coupled DNA repair (TCR) cause severe clinical syndromes, which may affect the nervous system development of infants and even lead to premature death in some cases. ERCC8 diverse critical roles in the nucleotide excision repair (NER) complex, which is one of the disease-causing genes of Cockayne syndrome. METHODS AND RESULTS The mutation of ERCC8 in the patient was identified and validated using WES and Sanger sequencing. Specifically, a compound heterozygous mutation (c.454_460dupGTCTCCA p. T154Sfs*13 and c.755_759delGTTTT p.C252Yfs*3) of ERCC8 (CSA) was found, which could potentially be the genetic cause of Cockayne syndrome in the proband. CONCLUSION In this study, we identified a novel heterozygous mutation of ERCC8 in a Chinese family with Cockayne syndrome, which enlarging the genetic spectrum of the disease.
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Affiliation(s)
- Meng-Wei Liu
- School of Life Sciences, Central South University, Changsha, China
- College of Basic Medical, Xinjiang Medical University, Urumqi, China
| | - Cheng-Feng Hu
- School of Life Sciences, Central South University, Changsha, China
| | - Jie-Yuan Jin
- School of Life Sciences, Central South University, Changsha, China
| | - Rong Xiang
- School of Life Sciences, Central South University, Changsha, China
| | - Liang-Liang Fan
- School of Life Sciences, Central South University, Changsha, China
| | - Ya-Li Li
- Department of Reproductive Genetics, Hebei General Hospital, Shijiazhuang, China.
| | - Lei Zhu
- Department of Obstetrics and Gynecology, Ordos Central Hospital, Ordos, China.
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Wang X, Li Y, Zhao A, Wang Y, Cao Q, Pan C, Li M. Next-generation sequencing through multi-gene panel testing for the diagnosis of a Chinese patient with atypical Cockayne syndrome. Mol Genet Genomic Med 2023; 11:e2254. [PMID: 37592445 PMCID: PMC10655510 DOI: 10.1002/mgg3.2254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 05/22/2023] [Accepted: 07/13/2023] [Indexed: 08/19/2023] Open
Abstract
BACKGROUND Cockayne syndrome (CS, OMIM #133540, #216400) is a rare autosomal recessive disease involving multiple systems, typically characterized by microcephaly, premature aging, growth retardation, neurosensory abnormalities, and photosensitivity. The age of onset is related to the severity of the clinical phenotype, which may lead to fatal outcomes. METHODS We report a 3-year-old girl who presented with photosensitivity, gait abnormalities, stunting, and microcephaly and showed atypical clinical classification due to mild clinical manifestations at an early onset age. RESULTS Next-generation sequencing reveals the frameshift mutation (c.394_398del, p.Leu132Asnfs*6) and a novel microdeletion of ERCC8 (exon4del, p.Arg92fs). CONCLUSION Therefore, it is still necessary to carry out next-generation sequencing for CS patients with atypical clinical manifestations, which is essential for diagnosis and accurate genetic counseling.
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Affiliation(s)
- Xinyi Wang
- Department of Dermatology, Xinhua HospitalShanghai Jiaotong University School of MedicineShanghaiChina
- Department of DermatologyChildren's Hospital of Fudan University, National Children's Medical CenterShanghaiChina
| | - Yue Li
- Department of DermatologyHuashan Hospital of Fudan UniversityShanghaiChina
| | - Anqi Zhao
- Department of Dermatology, Xinhua HospitalShanghai Jiaotong University School of MedicineShanghaiChina
- Department of DermatologyChildren's Hospital of Fudan University, National Children's Medical CenterShanghaiChina
| | - Yumeng Wang
- Department of Dermatology, Xinhua HospitalShanghai Jiaotong University School of MedicineShanghaiChina
- Department of DermatologyChildren's Hospital of Fudan University, National Children's Medical CenterShanghaiChina
| | - Qiaoyu Cao
- Department of DermatologyChildren's Hospital of Fudan University, National Children's Medical CenterShanghaiChina
| | - Chaolan Pan
- Department of Dermatology, Xinhua HospitalShanghai Jiaotong University School of MedicineShanghaiChina
- Department of DermatologyChildren's Hospital of Fudan University, National Children's Medical CenterShanghaiChina
| | - Ming Li
- Department of DermatologyChildren's Hospital of Fudan University, National Children's Medical CenterShanghaiChina
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Gauhar Z, Tejwani L, Abdullah U, Saeed S, Shafique S, Badshah M, Choi J, Dong W, Nelson-Williams C, Lifton RP, Lim J, Raja GK. A Novel Missense Mutation in ERCC8 Co-Segregates with Cerebellar Ataxia in a Consanguineous Pakistani Family. Cells 2022; 11. [PMID: 36231052 DOI: 10.3390/cells11193090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
Autosomal-recessive cerebellar ataxias (ARCAs) are heterogeneous rare disorders mainly affecting the cerebellum and manifest as movement disorders in children and young adults. To date, ARCA causing mutations have been identified in nearly 100 genes; however, they account for less than 50% of all cases. We studied a multiplex, consanguineous Pakistani family presenting with a slowly progressive gait ataxia, body imbalance, and dysarthria. Cerebellar atrophy was identified by magnetic resonance imaging of brain. Using whole exome sequencing, a novel homozygous missense mutation ERCC8:c.176T>C (p.M59T) was identified that co-segregated with the disease. Previous studies have identified homozygous mutations in ERCC8 as causal for Cockayne Syndrome type A (CSA), a UV light-sensitive syndrome, and several ARCAs. ERCC8 plays critical roles in the nucleotide excision repair complex. The p.M59T, a substitution mutation, is located in a highly conserved WD1 beta-transducin repeat motif. In silico modeling showed that the structure of this protein is significantly affected by the p.M59T mutation, likely impairing complex formation and protein-protein interactions. In cultured cells, the p.M59T mutation significantly lowered protein stability compared to wildtype ERCC8 protein. These findings expand the role of ERCC8 mutations in ARCAs and indicate that ERCC8-related mutations should be considered in the differential diagnosis of ARCAs.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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
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Sui X, Tang X, Wu X, Liu Y. Identification of ERCC8 as a novel cisplatin-resistant gene in esophageal cancer based on genome-scale CRISPR/Cas9 screening. Biochem Biophys Res Commun 2022; 593:84-92. [PMID: 35063774 DOI: 10.1016/j.bbrc.2022.01.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 01/10/2022] [Indexed: 12/24/2022]
Abstract
Esophageal cancer (ESCA) is one of the most common malignant tumors of the digestive system worldwide. As a first-line drug for chemotherapy, cisplatin resistance is the major obstacle in the successful treatment of esophageal cancer. Previous studies largely failed to identify the key genes associated with cisplatin resistance. Hence, the aim of this study was to screen the cisplatin resistance-related genes of esophageal cancer using CRISPR/Cas9 gene-editing technology and Brunello iBar library. Of note, we identified ERCC8 as a novel cisplatin-resistant gene by high-throughput sequencing and cisplatin resistance assays. Based on KEGG and GO analysis, we hypothesized that the mechanism of ERCC8 involvement in cisplatin resistance is through binding to damaged DNA to perform nucleotide excision repair, contributing to the restoration of basic DNA functions and cellular life activities in ESCA. In addition, Cell proliferation and wound healing assay confirmed that ERCC8 had little effect on the proliferation and migration of esophageal cancer cells in vitro. Survival analysis showed that ERCC8 expression was not associated with OS, DSS, or FPI in patients with ESCA. Immuno-infiltration analysis indicated that increased ERCC8 expression is associated with NK cells, macrophages, T helper cells, Th1 cells, and Th2 cells. Collectively, ERCC8 may serve as a new biomarker for predicting cisplatin resistance and have the prospect of becoming an effective target for the clinical treatment of cisplatin resistance in ESCA.
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Affiliation(s)
- Xue Sui
- Department of Clinical Laboratory Diagnostics, Binzhou Medical University, Binzhou, Shandong, 256603, China
| | - Xiaolong Tang
- Department of Clinical Laboratory Diagnostics, Binzhou Medical University, Binzhou, Shandong, 256603, China
| | - Xi Wu
- Peking University-Tsinghua University-National Institute of Biological Sciences (PTN) Joint Graduate Program, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Yongshuo Liu
- Department of Clinical Laboratory, Binzhou Medical University Hospital, Binzhou, Shandong, 256603, China; Biomedical Pioneering Innovation Center (BIOPIC), Beijing Advanced Innovation Center for Genomics, Peking-Tsinghua Center for Life Sciences, Peking University Genome Editing Research Center, State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, 100871, China.
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Chen J, Li L, Sun L, Yuan Y, Jing J. Associations of individual and joint expressions of ERCC6 and ERCC8 with clinicopathological parameters and prognosis of gastric cancer. PeerJ 2021; 9:e11791. [PMID: 34316408 PMCID: PMC8286707 DOI: 10.7717/peerj.11791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 06/25/2021] [Indexed: 11/20/2022] Open
Abstract
Background Excision repair cross-complementing group 6 and 8 (ERCC6 and ERCC8) have been implicated in ailments such as genetic diseases and cancers. However, the relationship between individual and joint expressions of ERCC6/ERCC8 and clinicopathological parameters as well as prognosis of gastric cancer (GC) still remains unclear. Methods In this study, protein expressions of ERCC6, ERCC8 and ERCC6-ERCC8 were detected by immunohistochemistry (IHC) in 109 paired GC and para-cancerous normal tissue samples. The mRNA expression was detected in 36 pairs of tissue samples. IHC results and RNA-seq data extracted from The Cancer Genome Atlas (TCGA) were used to explore the clinical value of ERCC6 and ERCC8 expression in GC. We further conducted protein-protein interaction analysis, Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, gene set enrichment analysis, and gene-gene interaction analysis to explore the function and regulation networks of ERCC6 and ERCC8 in GC. Results Individual and joint ERCC6/ERCC8 expression were significantly higher in adjacent normal mucosa compared with GC tissues. ERCC6 mRNA expression showed no difference in GC and paired tissues, while ERCC8 mRNA was significantly decreased in GC tissues. Protein expression of ERCC6, ERCC8, double negative ERCC6-ERCC8 and double positive ERCC6-ERCC8 and overexpressed ERCC6 mRNA were related to better clinicopathologic parameters, while overexpressed ERCC8 mRNA suggested worse parameters. Univariate survival analysis indicated that the OS was longer when ERCC6 protein expression and ERCC8 mRNA expression increased, and double negative ERCC6-ERCC8 expression was associated with a short OS. Bioinformatics analyses showed ERCC6 and ERCC8 were associated with nucleotide excision repair (NER) pathway, and six and ten gene sets were figured out to be related with ERCC6 and ERCC8, respectively. KEGG pathway showed that ERCC6/ERCC8 related gene sets were mainly involved in the regulation of PI3K/AKT/mTOR pathway. Direct physical interactions were found between ERCC6 and ERCC8. Conclusions Individual and joint expressions of ERCC6/ERCC8 were associated with clinical features of GC. Protein expression of ERCC6, ERCC6-ERCC8, and mRNA expression of ERCC8 were related to prognosis of GC. ERCC6 and ERCC8 primarily function in the NER pathway, and may regulate GC progression through the regulation of PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Jing Chen
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Liang Li
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Liping Sun
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jingjing Jing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of Cancer Etiology and Prevention in Liaoning Education Department, the First Hospital of China Medical University, Shenyang, Liaoning, China.,Key Laboratory of GI Cancer Etiology and Prevention in Liaoning Province, the First Hospital of China Medical University, Shenyang, Liaoning, China
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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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
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Wu S, Liu Y, Zhang Q, Meng X, Huang L, Xu Z, Zhang C, Li Y, Chen T, Bai Z. Atypical features and de novo heterozygous mutations in two siblings with Cockayne syndrome. Mol Genet Genomic Med 2020; 8:e1204. [PMID: 32160415 PMCID: PMC7216809 DOI: 10.1002/mgg3.1204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/13/2020] [Accepted: 02/21/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Cockayne syndrome (CS) is a rare autosomal recessive disorder which displays multiorgan dysfunction, especially within the nervous system including psychomotor retardation, cerebral atrophy, microcephaly, cognitive dysfunction, mental retardation, and seizures. Many genetic variations reported were related to this syndrome, but splicing mutations with cardiac anomalies have not been found in previous studies. METHODS Herein, we described a pair of brothers and sisters who present essential manifestations of CS including premature feature, developmental delay, growth failure, microcephaly, and characteristic facial features, such as sunken eyes and a beaked nose. Interestingly, the brother also presented with atypical features which included cardiac anomalies such as left atrioventricular enlargement and cardiac dysfunction such as dilated cardiomyopathy. In addition, whole exome sequencing and RNA sequencing were employed to analyze their genetic landscape. RESULTS WES analysis showed that these two cases carried double unreported heterozygous spliced mutations in the excision repair cross-complementing group 8 (ERCC8, also known as CSA, NM_000082) gene, which were c.78-2 (IVS1) A>T and c.1042-1 (IVS10) G>A, respectively. Moreover, transcript sequencing analysis validated these mutation sites. In this study, Gene Ontology enrichment and KEGG pathway analyses from RNA sequencing demonstrated similarities but some differences when compared with previous studies. CONCLUSION For patients with Cockayne syndrome, cardiac changes need to be monitored carefully, especially for cases with splicing mutations of the ERCC8 gene.
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Affiliation(s)
- Shuiyan Wu
- Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ying Liu
- Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Qian Zhang
- Suzhou municipal hospital, Suzhou, Jiangsu, China
| | - Xiangying Meng
- Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Linlin Huang
- Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Zhong Xu
- Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Chunxu Zhang
- Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ying Li
- Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ting Chen
- Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Zhenjiang Bai
- Children's Hospital of Soochow University, Suzhou, Jiangsu, China
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Cho S, Traboulsi EI, Chiang J, Sierpina D. Multimodal imaging in a family with Cockayne syndrome with a novel pathogenic mutation in the ERCC8 gene, and significant phenotypic variability. Doc Ophthalmol 2020; 141:89-97. [PMID: 32048102 DOI: 10.1007/s10633-020-09754-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 02/03/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Cockayne syndrome is a rare autosomal recessive neurodegenerative disorder caused by mutations of either the ERCC6/CSB or ERCC8/CSA genes. Here, we describe two sisters with Cockayne syndrome caused by compound heterozygous mutations in the ERCC8 gene using multimodal imaging. Significant ophthalmic and systemic phenotypic variability is discussed. MATERIALS AND METHODS Multimodal imaging was performed in two affected sisters and included electroretinography, optical coherence tomography, ultra-wide-field confocal scanning laser ophthalmoscopy, fundus autofluorescence and fluorescein angiography, and magnetic resonance imaging. Genetic analyses were performed on the affected sisters, both parents, and three unaffected siblings. RESULTS The older sister (Patient 1) had mental retardation, bilateral hearing loss, ataxia, and decreased visual acuity with retinal dystrophy. Radiographic studies revealed microcephaly, cerebral and cerebellar atrophy, ventriculomegaly, and a diffusely thickened skull. Full-field electroretinography waveforms were severely diminished with attenuation of cone and rod responses. The younger sister (Patient 2) had similar clinical features, including ataxia, bilateral hearing loss, and decreased visual acuity with retinal dystrophy. She also had paranoid schizophrenia. Wide-field fundus autofluorescence showed scattered areas of retinal pigment epithelium atrophy, which was different from her sister. Genetic analysis revealed two mutations in the ERCC8 gene shared by the sisters. These include an unreported missense point mutation: p.Thr328Ser:c.983C > G, and another previously reported pathogenic missense mutation: p.Ala205Pro:c.613G > C. Familial testing showed in trans segregation of these mutations with unaffected siblings inheriting one or neither mutation, but not both. CONCLUSION The clinical presentation and genetic studies confirmed a diagnosis of Cockayne syndrome in both sisters caused by compound heterozygous mutations in the ERCC8 gene on chromosome 10. Multimodal ocular imaging and systemic findings revealed wide phenotypic variability between the affected siblings.
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Affiliation(s)
- Soungmin Cho
- Loma Linda University Eye Institute, Loma Linda, CA, USA.
| | | | - John Chiang
- Molecular Vision Laboratory, Hillsboro, OR, USA
| | - David Sierpina
- Loma Linda University Eye Institute, Loma Linda, CA, USA
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11
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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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.
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12
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Chebly A, Corbani S, Abou Ghoch J, Mehawej C, Megarbane A, Chouery E. First molecular study in Lebanese patients with Cockayne syndrome and report of a novel mutation in ERCC8 gene. BMC Med Genet 2018; 19:161. [PMID: 30200888 DOI: 10.1186/s12881-018-0677-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [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.
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13
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Mohammadi-Asl J, Hajjari M, Tahmasebi Birgani M, Riahi K, Nasiri H, Kollaee A. Exome sequencing revealed a novel deletion in the ERCC8 gene in an Iranian family with Cockayne syndrome. Ann Hum Genet 2018; 82:304-308. [PMID: 30039856 DOI: 10.1111/ahg.12255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 01/16/2018] [Accepted: 02/05/2018] [Indexed: 11/30/2022]
Abstract
Cockayne syndrome (CS) is one the rare DNA-repair deficiency disorders with autosomal recessive inheritance. Failure to thrive and microcephaly are the major criteria of diagnosis. Owing to genetic heterogeneity of CS, whole exome sequencing is promising way to determine the genetic basis of the disease. Here, we present c.1053delT in ERCC8 gene in an Iranian family with symptom of CS using whole exome sequencing. The deletion was novel and was not previously reported elsewhere.
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Affiliation(s)
- J Mohammadi-Asl
- Department of Medical Genetics, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Noor Genetics Lab, Ahvaz, Iran
| | - M Hajjari
- Department of Genetics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - M Tahmasebi Birgani
- Department of Medical Genetics, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - K Riahi
- Research Center of Thalasemia and Hemoglobinopathy, Ahvaz Jundishapur university of Medical Sciences, Ahvaz, Iran.,Pediatric Department, Ahvaz Jundishapur University of Medical Sciences, Golestan Hospital, Golestan, Ahvaz, Iran
| | - H Nasiri
- Departement of Medical Genetics, Nika center of Health promotion and prevention Medicine, Tehran, Iran
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14
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Jing JJ, Lu YZ, Sun LP, Liu JW, Gong YH, Xu Q, Dong NN, Yuan Y. Epistatic SNP interaction of ERCC6 with ERCC8 and their joint protein expression contribute to gastric cancer/atrophic gastritis risk. Oncotarget 2018; 8:43140-43152. [PMID: 28562347 PMCID: PMC5522134 DOI: 10.18632/oncotarget.17814] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/12/2017] [Indexed: 12/13/2022] Open
Abstract
Excision repair cross-complementing group 6 and 8 (ERCC6 and ERCC8) are two indispensable genes for the initiation of transcription-coupled nucleotide excision repair pathway. This study aimed to evaluate the interactions between single nucleotide polymorphisms of ERCC6 (rs1917799) and ERCC8 (rs158572 and rs158916) in gastric cancer and its precancerous diseases. Besides, protein level analysis were performed to compare ERCC6 and ERCC8 expression in different stages of gastric diseases, and to correlate SNPs jointly with gene expression. Sequenom MassARRAY platform method was used to detect polymorphisms of ERCC6 and ERCC8 in 1916 subjects. In situ ERCC6 and ERCC8 protein expression were detected by immunohistochemistry in 109 chronic superficial gastritis, 109 chronic atrophic gastritis and 109 gastric cancer cases. Our results demonstrated pairwise epistatic interactions between ERCC6 and ERCC8 SNPs that ERCC6 rs1917799-ERCC8 rs158572 combination was associated with decreased risk of chronic atrophic gastritis and increased risk of gastric cancer. ERCC6 rs1917799 also showed a significant interaction with ERCC8 rs158916 to reduce gastric cancer risk. The expressions of ERCC6, ERCC8 and ERCC6-ERCC8 combination have similarities that higher positivity was observed in chronic superficial gastritis compared with chronic atrophic gastritis and gastric cancer. As for the effects of ERCC6 and ERCC8 SNPs on the protein expression, single SNP had no correlation with corresponding gene expression, whereas the ERCC6 rs1917799–ERCC8 rs158572 pair had significant influence on ERCC6 and ERCC6-ERCC8 expression. In conclusion, ERCC6 rs1917799, ERCC8 rs158572 and rs158916 demonstrated pairwise epistatic interactions to associate with chronic atrophic gastritis and gastric cancer risk. The ERCC6 rs1917799–ERCC8 rs158572 pair significantly influence ERCC6 and ERCC6-ERCC8 expression.
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Affiliation(s)
- Jing-Jing Jing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, Liaoning, China
| | - You-Zhu Lu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, Liaoning, China
| | - Li-Ping Sun
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, Liaoning, China
| | - Jing-Wei Liu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, Liaoning, China
| | - Yue-Hua Gong
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, Liaoning, China
| | - Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, Liaoning, China
| | - Nan-Nan Dong
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, Liaoning, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Key Laboratory of Cancer Etiology and Prevention, China Medical University, Liaoning Provincial Education Department, Shenyang, Liaoning, China
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15
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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] [What about the content of this article? (0)] [Affiliation(s)] [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.
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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
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16
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Calmels N, Greff G, Obringer C, Kempf N, Gasnier C, Tarabeux J, Miguet M, Baujat G, Bessis D, Bretones P, Cavau A, Digeon B, Doco-Fenzy M, Doray B, Feillet F, Gardeazabal J, Gener B, Julia S, Llano-Rivas I, Mazur A, Michot C, Renaldo-Robin F, Rossi M, Sabouraud P, Keren B, Depienne C, Muller J, Mandel JL, Laugel V. Uncommon nucleotide excision repair phenotypes revealed by targeted high-throughput sequencing. Orphanet J Rare Dis 2016; 11:26. [PMID: 27004399 PMCID: PMC4804614 DOI: 10.1186/s13023-016-0408-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Accepted: 03/16/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Deficient nucleotide excision repair (NER) activity causes a variety of autosomal recessive diseases including xeroderma pigmentosum (XP) a disorder which pre-disposes to skin cancer, and the severe multisystem condition known as Cockayne syndrome (CS). In view of the clinical overlap between NER-related disorders, as well as the existence of multiple phenotypes and the numerous genes involved, we developed a new diagnostic approach based on the enrichment of 16 NER-related genes by multiplex amplification coupled with next-generation sequencing (NGS). METHODS Our test cohort consisted of 11 DNA samples, all with known mutations and/or non pathogenic SNPs in two of the tested genes. We then used the same technique to analyse samples from a prospective cohort of 40 patients. Multiplex amplification and sequencing were performed using AmpliSeq protocol on the Ion Torrent PGM (Life Technologies). RESULTS We identified causative mutations in 17 out of the 40 patients (43%). Four patients showed biallelic mutations in the ERCC6(CSB) gene, five in the ERCC8(CSA) gene: most of them had classical CS features but some had very mild and incomplete phenotypes. A small cohort of 4 unrelated classic XP patients from the Basque country (Northern Spain) revealed a common splicing mutation in POLH (XP-variant), demonstrating a new founder effect in this population. Interestingly, our results also found ERCC2(XPD), ERCC3(XPB) or ERCC5(XPG) mutations in two cases of UV-sensitive syndrome and in two cases with mixed XP/CS phenotypes. CONCLUSIONS Our study confirms that NGS is an efficient technique for the analysis of NER-related disorders on a molecular level. It is particularly useful for phenotypes with combined features or unusually mild symptoms. Targeted NGS used in conjunction with DNA repair functional tests and precise clinical evaluation permits rapid and cost-effective diagnosis in patients with NER-defects.
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Affiliation(s)
- Nadège Calmels
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, Strasbourg, France.
| | - Géraldine Greff
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, Strasbourg, France
| | - Cathy Obringer
- Laboratoire de Génétique Médicale - INSERM U1112, Institut de Génétique Médicale d'Alsace (IGMA), Faculté de médecine de Strasbourg, 11 rue Humann, Strasbourg, France
| | - Nadine Kempf
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, Strasbourg, France
| | - Claire Gasnier
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, Strasbourg, France
| | - Julien Tarabeux
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, Strasbourg, France
| | - Marguerite Miguet
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, Strasbourg, France
| | - Geneviève Baujat
- Centre de Référence Maladies Osseuses Constitutionnelles, Département de Génétique, Hôpital Necker-Enfants malades, Paris, France
| | - Didier Bessis
- Département de Dermatologie, Hôpital Saint-Éloi, 80 avenue Augustin-Fliche, 34295, Montpellier, France
| | - Patricia Bretones
- Service d'Endocrinologie Pédiatrique, diabète et maladies héréditaires du métabolisme, Hôpital Femme Mère enfant, GH Est, 59 boulevard Pinel, Bron, France
| | - Anne Cavau
- Service de Pédiatrie Générale, Hôpital Necker-Enfants malades, Paris, France
| | - Béatrice Digeon
- Service de Pédiatrie, CHU de Reims, Hôpital Maison Blanche, 45 rue Cognacq-Jay, Reims, France
| | - Martine Doco-Fenzy
- Service de Génétique et Biologie de la Reproduction CHU de Reims, Hôpital Maison Blanche, 45 rue Cognacq-Jay, Reims, France
| | - Bérénice Doray
- Service de Génétique, CHU La Réunion, Hôpital Félix Guyon, Allée des Topazes, Saint-Denis, France
| | - François Feillet
- Centre de Référence des Maladies Héréditaires du Métabolisme, Service de Médecine Infantile, INSERM NGERE 954, CHU Brabois Enfants, Allée du Morvan, Vandœuvre les Nancy, France
| | - Jesus Gardeazabal
- Servicio de Dermatología, Cruces University Hospital, BioCruces Health Research Institute, Baracaldo Vizcaya, Spain
| | - Blanca Gener
- Servicio de Genética, Cruces University Hospital, BioCruces Health Research Institute, Baracaldo Vizcaya, Spain
| | - Sophie Julia
- Service de Génétique Médicale, CHU de Toulouse - Hôpital Purpan, Place du Docteur Baylac, Toulouse, France
| | - Isabel Llano-Rivas
- Servicio de Genética, Cruces University Hospital, BioCruces Health Research Institute, Baracaldo Vizcaya, Spain
| | - Artur Mazur
- Department of Pediatrics, Pediatric Endocrinology and Diabetes, Faculty of Medicine, University of Rzeszów, Rzeszów, Poland
| | - Caroline Michot
- Service de Génétique Médicale, Hôpital Necker Enfants-Malades, 24 Bd du Montparnasse, Paris, France
| | | | - Massimiliano Rossi
- Centre de Référence des Anomalies du Développement, Service de Génétique, Hospices Civils de Lyon, Lyon, France.,INSERM U1028; CNRS UMR5292; CNRL TIGER Team, Lyon, France
| | - Pascal Sabouraud
- Service de Pédiatrie A - Neurologie pédiatrique, CHU de Reims - American Memorial Hospital, 47 rue Cognacq Jay, Reims, France
| | - Boris Keren
- AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, F-75013, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, UM 75, U 1127, UMR 7225, ICM, F-75013, Paris, France
| | - Christel Depienne
- AP-HP, Hôpital de la Pitié-Salpêtrière, Département de Génétique, F-75013, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, UM 75, U 1127, UMR 7225, ICM, F-75013, Paris, France
| | - Jean Muller
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, Strasbourg, France.,Laboratoire de Génétique Médicale - INSERM U1112, Institut de Génétique Médicale d'Alsace (IGMA), Faculté de médecine de Strasbourg, 11 rue Humann, Strasbourg, France
| | - Jean-Louis Mandel
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, 1 place de l'hôpital, Strasbourg, France
| | - Vincent Laugel
- Laboratoire de Génétique Médicale - INSERM U1112, Institut de Génétique Médicale d'Alsace (IGMA), Faculté de médecine de Strasbourg, 11 rue Humann, Strasbourg, France.,Service de Pédiatrie, Hôpitaux Universitaires de Strasbourg, 1 avenue Molière, Strasbourg, France
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17
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Jing JJ, Sun LP, Xu Q, Yuan Y. Effect of ERCC8 tagSNPs and their association with H. pylori infection, smoking, and alcohol consumption on gastric cancer and atrophic gastritis risk. Tumour Biol 2015; 36:9525-35. [PMID: 26130415 DOI: 10.1007/s13277-015-3703-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 06/22/2015] [Indexed: 12/14/2022] Open
Abstract
Excision repair cross-complementing group 8 (ERCC8) plays a critical role in DNA repair. Genetic polymorphisms in ERCC8 may contribute to the risk of cancer development. We selected tag single nucleotide polymorphisms (tagSNPs) in Chinese patients from the HapMap database to investigate associations with gastric cancer and its precursors. Genomic DNA was extracted from 394 controls, 394 atrophic gastritis, and 394 gastric cancer cases in northern Chinese patients, and genotypes were identified using the Sequenom MassARRAY system. We found that the ERCC8 rs158572 GG+GA genotype showed a 1.651-fold (95 % confidence interval (CI) = 1.109-2.457, P = 0.013) increased risk of gastric cancer compared with the AA genotype, especially in diffuse type. Stratified analysis comparing the common genotype revealed significantly increased gastric cancer risk in males and individuals older than 50 years with rs158572 GA/GG/GG+GA genotypes, while individuals older than 50 years with rs158916 CT/CC+CT genotypes were less susceptible to atrophic gastritis. Haplotype analysis showed that the G-T haplotype was associated with increased risk of gastric cancer. Statistically significant interactions between the two ERCC8 tagSNPs and Helicobacter pylori infection were observed for gastric cancer and atrophic gastritis risk (P < 0.05). Smokers and drinkers with ERCC8 rs158572 GG+GA genotype were more susceptible to gastric cancer compared with non-smokers and non-drinkers homozygous for AA. Our findings suggested that ERCC8 rs158572 and rs158916, alone or together with environmental factors, might be associated with gastric cancer and atrophic gastritis susceptibility. Further validation of our results in larger populations along with additional studies evaluating the underlying molecular function is required.
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Affiliation(s)
- Jing-Jing Jing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Heping District, Nanjing North Street 155#, Shenyang City, 110001, China.,Key Laboratory of Cancer Etiology and Prevention, Liaoning Provincial Education Department, China Medical University, Shenyang, 110001, China
| | - Li-Ping Sun
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Heping District, Nanjing North Street 155#, Shenyang City, 110001, China.,Key Laboratory of Cancer Etiology and Prevention, Liaoning Provincial Education Department, China Medical University, Shenyang, 110001, China
| | - Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Heping District, Nanjing North Street 155#, Shenyang City, 110001, China.,Key Laboratory of Cancer Etiology and Prevention, Liaoning Provincial Education Department, China Medical University, Shenyang, 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Affiliated Hospital of China Medical University, Heping District, Nanjing North Street 155#, Shenyang City, 110001, China. .,Key Laboratory of Cancer Etiology and Prevention, Liaoning Provincial Education Department, China Medical University, Shenyang, 110001, China.
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18
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Baez S, Couto B, Herrera E, Bocanegra Y, Trujillo-Orrego N, Madrigal-Zapata L, Cardona JF, Manes F, Ibanez A, Villegas A. Tracking the Cognitive, Social, and Neuroanatomical Profile in Early Neurodegeneration: Type III Cockayne Syndrome. Front Aging Neurosci 2013; 5:80. [PMID: 24324434 PMCID: PMC3840614 DOI: 10.3389/fnagi.2013.00080] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 11/08/2013] [Indexed: 12/30/2022] Open
Abstract
Cockayne syndrome (CS) is an autosomal recessive disease associated with premature aging, progressive multiorgan degeneration, and nervous system abnormalities including cerebral and cerebellar atrophy, brain calcifications, and white matter abnormalities. Although several clinical descriptions of CS patients have reported developmental delay and cognitive impairment with relative preservation of social skills, no previous studies have carried out a comprehensive neuropsychological and social cognition assessment. Furthermore, no previous research in individuals with CS has examined the relationship between brain atrophy and performance on neuropsychological and social cognition tests. This study describes the case of an atypical late-onset type III CS patient who exceeds the mean life expectancy of individuals with this pathology. The patient and a group of healthy controls underwent a comprehensive assessment that included multiple neuropsychological and social cognition (emotion recognition, theory of mind, and empathy) tasks. In addition, we compared the pattern of atrophy in the patient to controls and to its concordance with ERCC8 gene expression in a healthy brain. The results showed memory, language, and executive deficits that contrast with the relative preservation of social cognition skills. The cognitive profile of the patient was consistent with his pattern of global cerebral and cerebellar loss of gray matter volume (frontal structures, bilateral cerebellum, basal ganglia, temporal lobe, and occipito-temporal/occipito-parietal regions), which in turn was anatomically consistent with the ERCC8 gene expression level in a healthy donor’s brain. The study of exceptional cases, such as the one described here, is fundamental to elucidating the processes that affect the brain in premature aging diseases, and such studies provide an important source of information for understanding the problems associated with normal and pathological aging.
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Affiliation(s)
- Sandra Baez
- Laboratory of Experimental Psychology & Neuroscience (LPEN), Institute of Cognitive Neurology (INECO) & Institute of Neuroscience, Favaloro University , Buenos Aires , Argentina . ; National Scientific and Technical Research Council (CONICET) , Buenos Aires , Argentina ; Pontifical Catholic University of Argentina , Buenos Aires , Argentina ; UDP-INECO Foundation Core on Neuroscience (UIFCoN), Diego Portales University , Santiago , Chile
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