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Aubert-Mucca M, Huber C, Baujat G, Michot C, Zarhrate M, Bras M, Boutaud L, Malan V, Attie-Bitach T, Cormier-Daire V. Ellis-Van Creveld Syndrome: Clinical and Molecular Analysis of 50 Individuals. J Med Genet 2023; 60:337-345. [PMID: 35927022 DOI: 10.1136/jmg-2022-108435] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 07/09/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Ellis-Van Creveld (EVC) syndrome is one of the entities belonging to the skeletal ciliopathies short rib-polydactyly subgroup. Major signs are ectodermal dysplasia, chondrodysplasia, polydactyly and congenital cardiopathy, with a high degree of variability in phenotypes ranging from lethal to mild clinical presentations. The EVC and EVC2 genes are the major genes causative of EVC syndrome. However, an increased number of genes involved in the ciliopathy complex have been identified in EVC syndrome, leading to a better understanding of its physiopathology, namely, WDR35, GLI1, DYNC2LI1, PRKACA, PRKACB and SMO. They all code for proteins located in the primary cilia, playing a key role in signal transduction of the Hedgehog pathways. METHODS The aim of this study was the analysis of 50 clinically identified EVC cases from 45 families to further define the phenotype and molecular bases of EVC. RESULTS Our detection rate in the cohort of 45 families was of 91.11%, with variants identified in EVC/EVC2 (77.8%), DYNC2H1 (6.7%), DYNC2LI1 (2.2%), SMO (2.2%) or PRKACB (2.2%). No distinctive feature was remarkable of a specific genotype-phenotype correlation. Interestingly, we identified a high proportion of heterozygous deletions in EVC/EVC2 of variable sizes (26.92%), mostly inherited from the mother, and probably resulting from recombinations involving Alu sequences. CONCLUSION We confirmed that EVC and EVC2 are the major genes involved in the EVC phenotype and highlighted the high prevalence of previously unreported CNVs (Copy Number Variation).
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Affiliation(s)
- Marion Aubert-Mucca
- Centre de Référence des Maladies Osseuses Constitutionnelles, Service de Médecine Génomique des Maladies Rares, Hôpital Universitaire Necker-Enfants Malades, Paris, France
| | - Céline Huber
- Université Paris Cité, INSERM UMR 1163, Imagine Institute, Paris, France
| | - Genevieve Baujat
- Centre de Référence des Maladies Osseuses Constitutionnelles, Service de Médecine Génomique des Maladies Rares, Hôpital Universitaire Necker-Enfants Malades, Paris, France
- Université Paris Cité, INSERM UMR 1163, Imagine Institute, Paris, France
| | - Caroline Michot
- Centre de Référence des Maladies Osseuses Constitutionnelles, Service de Médecine Génomique des Maladies Rares, Hôpital Universitaire Necker-Enfants Malades, Paris, France
- Université Paris Cité, INSERM UMR 1163, Imagine Institute, Paris, France
| | - Mohammed Zarhrate
- Genomics Core Facility, Institut Imagine-Structure Fédérative de Recherche Necker, INSERM U1163 et INSERM US24/CNRS UMS3633, Imagine Institute, Paris, France
| | - Marc Bras
- Bioinformatics Platform, Imagine Institute, Paris, France
| | - Lucile Boutaud
- Université Paris Cité, INSERM UMR 1163, Imagine Institute, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hopital Universitaire Necker-Enfants Malades, Paris, France
| | - Valérie Malan
- Université Paris Cité, INSERM UMR 1163, Imagine Institute, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hopital Universitaire Necker-Enfants Malades, Paris, France
| | - Tania Attie-Bitach
- Université Paris Cité, INSERM UMR 1163, Imagine Institute, Paris, France
- Service de Médecine Génomique des Maladies Rares, Hopital Universitaire Necker-Enfants Malades, Paris, France
| | | | - Valerie Cormier-Daire
- Centre de Référence des Maladies Osseuses Constitutionnelles, Service de Médecine Génomique des Maladies Rares, Hôpital Universitaire Necker-Enfants Malades, Paris, France
- Université Paris Cité, INSERM UMR 1163, Imagine Institute, Paris, France
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Sato H, Suga K, Suzue M, Honma Y, Hayabuchi Y, Miyai S, Kurahashi H, Nakagawa R. Novel large deletion involving EVC and EVC2 in Ellis-van Creveld syndrome. Hum Genome Var 2022; 9:15. [PMID: 35581188 PMCID: PMC9114401 DOI: 10.1038/s41439-022-00190-0] [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: 02/03/2022] [Revised: 03/17/2022] [Accepted: 03/17/2022] [Indexed: 01/12/2023] Open
Abstract
Ellis-van Creveld syndrome is an autosomal recessive skeletal dysplasia that is characterized by thoracic hypoplasia, polydactyly, oral abnormalities, and congenital heart disease. It is caused by pathogenic variants in the EVC or EVC2 genes. We report a case of a newborn with a compound heterozygous variant comprising NM_147127.5: c.1991dup:[p.Lys665Glufs*10] in the EVC2 gene and a novel large deletion involving exon 1 in EVC and exons 1-7 in EVC2.
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Affiliation(s)
- Hiroki Sato
- grid.412772.50000 0004 0378 2191Department of Pediatrics, Tokushima University Hospital, Kuramotocho, Tokushima, Japan
| | - Kenichi Suga
- grid.412772.50000 0004 0378 2191Department of Pediatrics, Tokushima University Hospital, Kuramotocho, Tokushima, Japan
| | - Masashi Suzue
- grid.412772.50000 0004 0378 2191Department of Pediatrics, Tokushima University Hospital, Kuramotocho, Tokushima, Japan
| | - Yukako Honma
- grid.412772.50000 0004 0378 2191Department of Pediatrics, Tokushima University Hospital, Kuramotocho, Tokushima, Japan
| | - Yasunobu Hayabuchi
- grid.412772.50000 0004 0378 2191Department of Pediatrics, Tokushima University Hospital, Kuramotocho, Tokushima, Japan
| | - Shunsuke Miyai
- grid.256115.40000 0004 1761 798XDivision of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - Hiroki Kurahashi
- grid.256115.40000 0004 1761 798XDivision of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - Ryuji Nakagawa
- grid.412772.50000 0004 0378 2191Department of Pediatrics, Tokushima University Hospital, Kuramotocho, Tokushima, Japan
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Ghassemi M, Goodarzi A, Seirafianpour F, Mozafarpoor S, Ziaeifar E. Rare clinical features of the Ellis van Creveld syndrome: A case report and literature review. Dermatol Ther 2020; 34:e14664. [PMID: 33314608 DOI: 10.1111/dth.14664] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 12/01/2020] [Indexed: 11/28/2022]
Abstract
Ellis van Creveld syndrome (EVC) is a rare autosomal recessive disorder also called chondroectodermal dysplasia. This study reports on a 40-year-old woman from Iran with a syndromic appearance consisting of a coarse face, conical anterior teeth, dental agenesis and permanent teeth at birth, several small extralabial, nonmidline frenula with a high-arched palate, and a large maxillary labial frenulum. The patient had cyanosis on her lips since childhood and a history of adenoid tonsillectomy surgery. She also had androgenic alopecia, an elongated trunk with excessive lordosis and pectus excavatum, polycystic ovarian syndrome, and a history of two periods in a month. She also had multiple fibrocystic cysts in her breasts, lower extremity deformity, dysplastic genu valgum, and short limb dwarfism; she had undergone left knee surgery four times and had severe osteoporosis in some of her bones and some hyperpigmented patches on the dorsal of the left hand. Her hands and feet were also wide and markedly deformed with hypoplastic fingernails and toenails, and she had bimanual hexadactyly on the ulnar side of the hands. She also had a history of severe hypotension and cyanosis during surgery and suffered from congenital heart failure and had undergone open heart surgery for correcting her atrial heart defect. In this study pectus excavatum, Phrygian cap gallbladder, liver hemangioma, polycystic ovarian disease, and breast fibrocystic cysts was reported for first time in this case of EVC syndrome. This case was reported and all articles regarding common, uncommon, rare, and extremely rare presentations of this syndrome were reviewed.
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Affiliation(s)
- Mohammadreza Ghassemi
- Department of Dermatology, Rasoul Akram Hospital, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Azadeh Goodarzi
- Department of Dermatology, Rasoul Akram Hospital, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Farnoosh Seirafianpour
- Student Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Samaneh Mozafarpoor
- Department of Dermatology, Skin Disease and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elham Ziaeifar
- Department of Dermatology, Rasoul Akram Hospital, Iran University of Medical Sciences (IUMS), Tehran, Iran
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