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De Ita M, Gaytán-Cervantes J, Cisneros B, Araujo MA, Huicochea-Montiel JC, Cárdenas-Conejo A, Lazo-Cárdenas CC, Ramírez-Portillo CI, Feria-Kaiser C, Peregrino-Bejarano L, Yáñez-Gutiérrez L, González-Torres C, Rosas-Vargas H. Clustering of Genetic Anomalies of Cilia Outer Dynein Arm and Central Apparatus in Patients with Transposition of the Great Arteries. Genes (Basel) 2022; 13:genes13091662. [PMID: 36140829 PMCID: PMC9498580 DOI: 10.3390/genes13091662] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/10/2022] [Accepted: 09/11/2022] [Indexed: 11/16/2022] Open
Abstract
Transposition of the great arteries (TGA) is a congenital heart defect with a complex pathogenesis that has not been fully elucidated. In this study, we performed whole-exome sequencing (WES) in isolated TGA-diagnosed patients and analyzed genes of motile and non-motile cilia ciliogenesis and ciliary trafficking, as well as genes previously associated with this heart malformation. Deleterious missense and splicing variants of genes DNAH9, DNAH11, and ODAD4 of cilia outer dynein arm and central apparatus, HYDIN, were found in our TGA patients. Remarkable, there is a clustering of deleterious genetic variants in cilia genes, suggesting it could be an oligogenic disease. Our data evidence the genetic diversity and etiological complexity of TGA and point out that population allele determination and genetic aggregation studies are required to improve genetic counseling.
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Affiliation(s)
- Marlon De Ita
- Unidad de Investigación Médica en Genética Humana, UMAE Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México 06720, Mexico
- Dpto de Genética y Biología Molecular, CINVESTAV Zacatenco IPN, Ciudad de México 07360, Mexico
| | - Javier Gaytán-Cervantes
- Laboratorio de Secuenciación, División de Desarrollo de la Investigación, IMSS, Ciudad de México 06720, Mexico
| | - Bulmaro Cisneros
- Dpto de Genética y Biología Molecular, CINVESTAV Zacatenco IPN, Ciudad de México 07360, Mexico
| | - María Antonieta Araujo
- Departamento clínico de Genética Médica, UMAE Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México 06720, Mexico
| | - Juan Carlos Huicochea-Montiel
- Departamento clínico de Genética Médica, UMAE Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México 06720, Mexico
| | - Alan Cárdenas-Conejo
- Departamento clínico de Genética Médica, UMAE Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México 06720, Mexico
| | - Charles César Lazo-Cárdenas
- Departamento clínico de Cardiología, UMAE Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México 06720, Mexico
| | - César Iván Ramírez-Portillo
- Departamento clínico de Cardiología, UMAE Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México 06720, Mexico
| | - Carina Feria-Kaiser
- Unidad de Cuidados Intensivos Neonatales, UMAE Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México 06720, Mexico
| | | | - Lucelli Yáñez-Gutiérrez
- Clínica de Cardiopatías Congénitas, UMAE Hospital de Cardiología, CMN Siglo XXI, Ciudad de México 06720, Mexico
| | - Carolina González-Torres
- Laboratorio de Secuenciación, División de Desarrollo de la Investigación, IMSS, Ciudad de México 06720, Mexico
- Correspondence: (C.G.-T.); (H.R.-V.)
| | - Haydeé Rosas-Vargas
- Unidad de Investigación Médica en Genética Humana, UMAE Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México 06720, Mexico
- Correspondence: (C.G.-T.); (H.R.-V.)
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Huang X, Guo Y, Xu H, Yang Z, Deng X, Deng H, Yuan L. Identification of a novel EVC variant in a Han-Chinese family with Ellis-van Creveld syndrome. Mol Genet Genomic Med 2019; 7:e885. [PMID: 31338997 PMCID: PMC6732296 DOI: 10.1002/mgg3.885] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 06/23/2019] [Accepted: 07/01/2019] [Indexed: 12/31/2022] Open
Abstract
Background Ellis‐van Creveld syndrome (EVC), a very rare genetic skeletal dysplasia, is clinically characterized by a tetrad consisting of chondrodystrophy, polydactyly, ectodermal dysplasia, and cardiac anomalies. The aim of this study was to identify the genetic defect for EVC in a five‐generation consanguineous Han‐Chinese pedigree. Methods A five‐generation, 12‐member Han‐Chinese pedigree was enrolled in this study. Exome sequencing was applied in the proband to screen potential genetic variant(s), and then Sanger sequencing was used to identify the variant in family members and 200 unrelated ethnicity‐matched controls. Results A novel homozygous variant, c.2014C>T, p.(Q672*), in the EvC ciliary complex subunit 1 gene (EVC), was detected in the patient, which was cosegregated with the disease in the family and absent in the controls. Conclusion The identified novel homozygous EVC variant, c.2014C>T, p.(Q672*), was responsible for EVC in this Han‐Chinese pedigree. The findings in this study extend the EVC mutation spectrum and may provide new insights into EVC causation and diagnosis with implications for genetic counseling and clinical management.
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Affiliation(s)
- Xiangjun Huang
- Department of General Surgery, The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Yi Guo
- Department of Medical Information, School of Life Sciences, Central South University, Changsha, China
| | - Hongbo Xu
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhijian Yang
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiong Deng
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Hao Deng
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Lamei Yuan
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
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Pittyanont S, Luewan S, Tongsong T. Cardio-STIC Based Reference Ranges of Fetal Thymus Size in Singleton Pregnancies. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2017; 36:1181-1188. [PMID: 28224652 DOI: 10.7863/ultra.16.07041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 08/15/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES To establish the reference ranges of the fetal thymus size among Thai fetuses. METHODS The database of spatio-temporal image correlation (cardio-STIC) was assessed to obtain the volume data sets for offline analysis. The volume data sets acquired at 16 to 38 weeks were measured for the thymus transverse diameter (TD) and the thymus/thoracic (TT) ratio at the three-vessel view. The measured values were regressed to identify the best-fitted model. RESULTS A total of 622 volumes were successfully measured and the reference ranges of TD and TT ratio were established. Although TT was relatively constant or increased minimally with gestational age (GA), TD was significantly increased with gestational age. The predicted mean TD (mm) = -31.206 + 2.854 × GA - 0.028 × GA2 (r = 0.891; P < .001) and predicted standard deviation (SD) of TD (mm) = 0.837 + 0.073 × GA (r = 0.038; P < .001). Centile charts for predicting TD and equations for z-score calculation were also provided. Interobserver variability in TD measurement was better than that in TT ratio and thymic perimeter measurement. CONCLUSIONS Reference ranges of fetal TD and TT ratio have been provided. These normative data may be a useful tool in the assessment of thymus-associated conditions. For clinical purposes, we recommend measurements of the TD rather than TT ratio or perimeter because of its reproducibility and simplicity.
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Affiliation(s)
- Sirida Pittyanont
- Department of Obstetrics and Gynecology, Faculty of Medicine Chiang Mai University, Thailand
| | - Suchaya Luewan
- Department of Obstetrics and Gynecology, Faculty of Medicine Chiang Mai University, Thailand
| | - Theera Tongsong
- Department of Obstetrics and Gynecology, Faculty of Medicine Chiang Mai University, Thailand
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Wang L, Takai Y, Baba K, Mikami Y, Saito M, Horiuchi I, Konno R, Takagi K, Seki H. Can biparietal diameter-to-femur length ratio be a useful sonographic marker for screening thanatophoric dysplasia since the first trimester? A literature review of case reports and a retrospective study based on 10,293 routine fetal biometry measurements. Taiwan J Obstet Gynecol 2017; 56:374-378. [DOI: 10.1016/j.tjog.2017.04.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2017] [Indexed: 11/15/2022] Open
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Novel mutations in EVC cause aberrant splicing in Ellis-van Creveld syndrome. Mol Genet Genomics 2015; 291:863-72. [PMID: 26621368 DOI: 10.1007/s00438-015-1151-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 11/20/2015] [Indexed: 01/15/2023]
Abstract
Ellis-van Creveld syndrome (EvC) is a rare autosomal recessive disorder characterized by disproportionate chondrodysplasia, postaxial polydactyly, nail dystrophy, dental abnormalities and in a proportion of patients, congenital cardiac malformations. Weyers acrofacial dysostosis (Weyers) is another dominantly inherited disorder allelic to EvC syndrome but with milder phenotypes. Both disorders can result from loss-of-function mutations in either EVC or EVC2 gene, and phenotypes associated with the two gene mutations are clinically indistinguishable. We present here a clinical and molecular analysis of a Chinese family manifested specific features of EvC syndrome. Sequencing of both EVC and EVC2 identified two novel heterozygous splice site mutations c.384+5G>C in intron 3 and c.1465-1G>A in intron 10 in EVC, which were inherited from mother and father, respectively. In vitro minigene expression assay, RT-PCR and sequencing analysis demonstrated that c.384+5G>C mutation abolished normal splice site and created a new cryptic acceptor site within exon 4, whereas c.1465-1G>A mutation affected consensus splice junction site and resulted in full exon 11 skipping. These two aberrant pre-mRNA splicing processes both produced in-frame abnormal transcripts that possibly led to abolishment of important functional domains. To our knowledge, this is the first report of EVC mutations that cause EvC syndrome in Chinese population. Our data revealed that EVC splice site mutations altered splicing pattern and helped elucidate the pathogenesis of EvC syndrome.
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Ellis-van Creveld syndrome: its history. Pediatr Radiol 2013; 43:1030-6. [PMID: 23754541 DOI: 10.1007/s00247-013-2709-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 04/05/2013] [Accepted: 04/08/2013] [Indexed: 10/26/2022]
Abstract
The story of Ellis-van Creveld syndrome is one of serendipity. By chance, Simon van Creveld and Richard Ellis purportedly met on a train and combined their independently encountered patients with short stature, dental anomalies and polydactyly into one landmark publication in 1940. They included a patient used in work published previously by Rustin McIntosh without naming McIntosh as a coauthor. This patient was followed radiologically by Caffey for nearly two decades. In 1964, Victor McKusick felt compelled to investigate a brief report in an obscure pharmaceutical journal on an unusual geographic cluster of short-statured Amish patients in Pennsylvania. This review highlights the lives of the individuals involved in the discovery of Ellis-van Creveld syndrome in their historic context.
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