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Bilal M, Haack TB, Buchert R, Peralta S, Ahmad I, Faisal, Abbasi S, Ahmad W. Sequence Variants in the WNT10B Underlying Non-Syndromic Split-Hand/Foot Malformation. Mol Syndromol 2023; 14:469-476. [PMID: 38058757 PMCID: PMC10697732 DOI: 10.1159/000531069] [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: 04/20/2023] [Accepted: 05/10/2023] [Indexed: 12/08/2023] Open
Abstract
Introduction Split hand and foot malformation (SHFM) or ectrodactyly is a rare limb deformity characterized by median cleft of the hand and foot with impaired or missing central rays. It can occur as an isolated anomaly or in association with abnormalities of other body parts. Methods After delineating the clinical features of two families (A-B), with non-syndromic SHFM, exome and Sanger sequencing were employed to search for the disease-causing variants. Results Analysis of exome and Sanger sequencing data revealed two causative variants in the WNT10B gene in affected members of the two families. This included a novel missense change [c.338G>C; p.(Gly113Ala)] in family A and a previously reported frameshift variant [c.884-896delTCCAGCCCCGTCT; p.(Phe295Cysfs*87)] in family B. Conclusion Our findings add a novel variant in WNT10B gene as the underlying cause of SHFM. The finding adds to the growing body of knowledge about the genetic basis of developmental disorders and provides valuable insights into the molecular mechanisms that regulate limb development.
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Affiliation(s)
- Muhammad Bilal
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pathology and Laboratory Medicine, Aga Khan University, Karachi, Pakistan
- Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Tobias B. Haack
- Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Rebecca Buchert
- Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Susana Peralta
- Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Imtiaz Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Faisal
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sanaullah Abbasi
- Department of Biochemistry, Shah Abdul Latif, Khairpur, Pakistan
| | - Wasim Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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Elalaoui SC, Fejjal N, Li Y, Thiele H, Altmüller J, Guaoua S, Nürnberg P, Wollnik B, Sefiani A, Ratbi I. Homozygous nonsense mutation of WNT10B gene in a Moroccan family with split-hand foot malformation identified by exome sequencing: a case report. Pan Afr Med J 2021; 39:21. [PMID: 34394812 PMCID: PMC8348243 DOI: 10.11604/pamj.2021.39.21.26176] [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: 09/21/2020] [Accepted: 04/28/2021] [Indexed: 11/11/2022] Open
Abstract
Split-hand foot malformation (SHFM) is a clinically heterogeneous congenital limb defect affecting predominantly the central rays of hands and/or feet. The clinical expression varies in severity between patients as well between the limbs in the same individual. SHFM might be non-syndromic with limb-confined manifestations or syndromic with extra-limb manifestations. Isolated SHFM is a rare condition with an incidence of about 1 per 18,000 live born infants and accounts for 8-17 % of all limb malformations. To date, many chromosomal loci and genes have been described as associated with isolated SHFM, i.e., SHFM1 to 6. SHFM6 is one of the rarest forms of SHFM, and is caused by mutations in WNT10B gene. Less than ten pathogenic variants have been described. We have investigated a large consanguineous Moroccan family with three affected members showing feet malformations with or without split hand malformation phenotypes. Using an exome sequencing approach, we identified a homozygous nonsense variant p.Arg115* of WNT10B gene retaining thereby the diagnosis of SHFM6. This homozygous nonsense mutation identified by exome sequencing in a large family of split hand foot malformation highlights the importance of exome sequencing in genetically heterogeneous entities.
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Affiliation(s)
- Siham Chafai Elalaoui
- Génomique et Epidémiologie Moléculaire des Maladies Génétiques (G2MG), Centre GENOPATH, Faculté de Médecine et de Pharmacie, Mohammed V University in Rabat, Rabat, Maroc.,Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Maroc
| | - Nawfal Fejjal
- Service de Chirurgie Plastique Pédiatrique, Hôpital des Enfants, Centre Hospitalier Universitaire Ibn Sina, Faculté de Médecine et de Pharmacie, Université Mohammed V, Rabat, Maroc
| | - Yun Li
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.,Institute of Human Genetics, University Hospital Cologne, University of Cologne, Cologne, Germany.,Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Holger Thiele
- Cologne Center for Genomics, University of Cologne, Cologne, Germany
| | - Janine Altmüller
- Cologne Center for Genomics, University of Cologne, Cologne, Germany
| | - Soukaina Guaoua
- Génomique et Epidémiologie Moléculaire des Maladies Génétiques (G2MG), Centre GENOPATH, Faculté de Médecine et de Pharmacie, Mohammed V University in Rabat, Rabat, Maroc
| | - Peter Nürnberg
- Cologne Center for Genomics, University of Cologne, Cologne, Germany
| | - Bernd Wollnik
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.,Institute of Human Genetics, University Hospital Cologne, University of Cologne, Cologne, Germany.,Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Abdelaziz Sefiani
- Génomique et Epidémiologie Moléculaire des Maladies Génétiques (G2MG), Centre GENOPATH, Faculté de Médecine et de Pharmacie, Mohammed V University in Rabat, Rabat, Maroc.,Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Maroc
| | - Ilham Ratbi
- Génomique et Epidémiologie Moléculaire des Maladies Génétiques (G2MG), Centre GENOPATH, Faculté de Médecine et de Pharmacie, Mohammed V University in Rabat, Rabat, Maroc.,Département de Génétique Médicale, Institut National d'Hygiène, Rabat, Maroc
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Jourdain A, Petit F, Odou M, Balduyck M, Brunelle P, Dufour W, Boussion S, Brischoux‐Boucher E, Colson C, Dieux A, Gérard M, Ghoumid J, Giuliano F, Goldenberg A, Khau Van Kien P, Lehalle D, Morin G, Moutton S, Smol T, Vanlerberghe C, Manouvrier‐Hanu S, Escande F. Multiplex targeted high‐throughput sequencing in a series of 352 patients with congenital limb malformations. Hum Mutat 2019; 41:222-239. [DOI: 10.1002/humu.23912] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/31/2019] [Accepted: 09/05/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Anne‐Sophie Jourdain
- Service de Biochimie et Biologie MoléculaireCHU LilleLille France
- EA7364 RADEMEUniv. LilleLille France
| | - Florence Petit
- EA7364 RADEMEUniv. LilleLille France
- Clinique de Génétique Guy FontaineCHU LilleLille France
| | - Marie‐Françoise Odou
- Service de Biochimie et Biologie MoléculaireCHU LilleLille France
- Faculty of Pharmacy, UMR995, LIRIC (Lille Inflammation Research International Center)University of LilleLille France
| | - Malika Balduyck
- Service de Biochimie et Biologie MoléculaireCHU LilleLille France
- EA7364 RADEMEUniv. LilleLille France
| | - Perrine Brunelle
- Service de Biochimie et Biologie MoléculaireCHU LilleLille France
- Clinique de Génétique Guy FontaineCHU LilleLille France
| | | | | | | | | | - Anne Dieux
- Clinique de Génétique Guy FontaineCHU LilleLille France
| | | | - Jamal Ghoumid
- EA7364 RADEMEUniv. LilleLille France
- Clinique de Génétique Guy FontaineCHU LilleLille France
| | | | | | | | - Daphné Lehalle
- Reference Center for Developmental Anomalies, Department of Medical GeneticsDijon University HospitalDijon France
| | - Gilles Morin
- Centre d'activité de Génétique et d'OncogénétiqueCHU Amiens PicardieAmiens France
| | - Sébastien Moutton
- Reference Center for Developmental Anomalies, Department of Medical GeneticsDijon University HospitalDijon France
| | - Thomas Smol
- EA7364 RADEMEUniv. LilleLille France
- Institut de Génétique MédicaleCHU LilleLille France
| | - Clémence Vanlerberghe
- EA7364 RADEMEUniv. LilleLille France
- Clinique de Génétique Guy FontaineCHU LilleLille France
| | - Sylvie Manouvrier‐Hanu
- EA7364 RADEMEUniv. LilleLille France
- Clinique de Génétique Guy FontaineCHU LilleLille France
| | - Fabienne Escande
- Service de Biochimie et Biologie MoléculaireCHU LilleLille France
- EA7364 RADEMEUniv. LilleLille France
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