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Perea‐Cabrera M, Granados‐Riveron JT, Segura‐Stanford B, Moreno‐Vargas LM, Prada‐Gracia D, Moran‐Espinosa MC, Erdmenger J, Diaz‐Garcia H, Sánchez‐Urbina R. Opitz GBBB syndrome with total anomalous pulmonary venous connection: A new MID1 gene variant. Mol Genet Genomic Med 2023; 11:e2234. [PMID: 37498300 PMCID: PMC10496055 DOI: 10.1002/mgg3.2234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 06/12/2023] [Accepted: 06/28/2023] [Indexed: 07/28/2023] Open
Abstract
BACKGROUND Opitz GBBB syndrome (GBBB) is an X-linked disease characterized by midline defects, including congenital heart defects. We present our diagnostic approach to the identification of GBBB in a consanguineous family in which two males siblings were concordant for a total anomalous connection of pulmonary veins and minor facial dysmorphias. METHODS Targeted exome sequencing analysis of a 380-gene panel associated with cardiovascular disease was performed on the propositus. Interpretative analysis of the exome results was conducted, and 3D models of the protein changes were generated. RESULTS We identified a NM_000381.4:c.608G>A;p.(Arg203Gln) change in MID1, affecting the conformation of the B-box 2 domain of the protein, with a zinc finger structure and associated protein interactions. This clinical phenotype is consistent with GBBB; however, the type of congenital heart disease observed in this case has not been previously reported. CONCLUSION A new likely pathogenic variant on MID1 c.608G>A was found to be associated with Opitz GBBB syndrome.
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Affiliation(s)
- Maryangel Perea‐Cabrera
- Centro de Investigación en Malformaciones CongénitasHospital Infantil de México Federico GómezMexico CityMexico
| | - Javier T. Granados‐Riveron
- Centro de Investigación en Malformaciones CongénitasHospital Infantil de México Federico GómezMexico CityMexico
| | | | - Liliana M. Moreno‐Vargas
- Unidad de Investigación en Biología Computacional y Diseño de FármacosHospital Infantil de México Federico GómezCiudad de MéxicoMexico
| | - Diego Prada‐Gracia
- Unidad de Investigación en Biología Computacional y Diseño de FármacosHospital Infantil de México Federico GómezCiudad de MéxicoMexico
| | - Mari C. Moran‐Espinosa
- Centro de Investigación en Malformaciones CongénitasHospital Infantil de México Federico GómezMexico CityMexico
| | - Julio Erdmenger
- Departamento de CardiologíaHospital Infantil de México Federico GómezMexico CityMexico
| | - Hector Diaz‐Garcia
- Centro de Investigación en Malformaciones CongénitasHospital Infantil de México Federico GómezMexico CityMexico
| | - Rocío Sánchez‐Urbina
- Centro de Investigación en Malformaciones CongénitasHospital Infantil de México Federico GómezMexico CityMexico
- Escuela Superior de Medicina del Instituto Politécnico NacionalMexico CityMexico
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Listyasari NA, Robevska G, Ayers KL, Tan TY, Sinclair AH, Faradz SM. Clinical lesson learned from genetic analysis in patients prior to surgical repair of hypospadias. Asian J Urol 2022; 9:186-189. [PMID: 35509483 PMCID: PMC9051356 DOI: 10.1016/j.ajur.2022.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/04/2021] [Accepted: 11/03/2021] [Indexed: 11/28/2022] Open
Affiliation(s)
- Nurin A. Listyasari
- Division of Human Genetics, Center for Biomedical Research, Faculty of Medicine Diponegoro University, Semarang, Indonesia
| | | | - Katie L. Ayers
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Tiong Yang Tan
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia
| | - Andrew H. Sinclair
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Sultana M.H. Faradz
- Division of Human Genetics, Center for Biomedical Research, Faculty of Medicine Diponegoro University, Semarang, Indonesia
- Diponegoro National Hospital, Semarang, Indonesia
- Corresponding author. Division of Human Genetics, Center for Biomedical Research, Faculty of Medicine, Diponegoro University, Semarang, Indonesia.
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Chen L, Wang J, Lu W, Xiao Y, Ni J, Wang W, Ma X, Dong Z. Characterization With Gene Mutations in Han Chinese Patients With Hypospadias and Function Analysis of a Novel AR Genevariant. Front Genet 2021; 12:673732. [PMID: 34276780 PMCID: PMC8278054 DOI: 10.3389/fgene.2021.673732] [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: 02/28/2021] [Accepted: 06/09/2021] [Indexed: 11/13/2022] Open
Abstract
It is estimated that around 10-20% of hypospadias are caused by genetic abnormalities worldwide although the spectrum of associated genes does vary across different ethnicities. The prevalence of hypospadias among the Chinese population has been increasing the last couple of decades. However, the pathogenesis underlying the disease and its associated genetic abnormality remains unclear. Here we performed a genetic analysis of 81 children with karyotype 46, XY and the hypospadias phenotype in order to characterize the genetic components that contribute to the development of hypospadias in Chinese patients. 15 candidate genes, including sex determination genes-SOX9, SRY, NR0B1 (DAX1), NR5A1 (SF1), DHH, sex differentiation genes-AR, SRD5A2, MAMLD1, INSL3, and hypospadias-associated genes-FGF8, FGF10, BMP4, BMP7, ATF3, and MID1 were screened by using next generation sequencing. A total of 18 patients were found to have mutations identified by PCR and sequencing, including 11 cases of SRD5A2 genes, 6 cases of AR genes, and 1 case of MID1 gene, respectively. One novel missense mutation p.I817N was discovered in AR gene. Further molecular analysis found that subcellular localization of the ARI 81 7N was the same as that of wild type ARWT in the absence or presence of hormone. But it led to 50% reduction in AR-induced transcriptional activity in the presence of either the synthetic androgen R1881 or the natural ligand dihydrotestosterone. Our results indicate that SRD5A2 and AR genes are two top candidate genes associated with 46, XY hypospadias in Chinese patients. Further epidemiological and genetic analysis are still needed to further clarify the pathogenesis of hypospadias in Han Chinese patients.
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Affiliation(s)
- Lifen Chen
- Department of Pediatrics, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Junqi Wang
- Department of Pediatrics, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wenli Lu
- Department of Pediatrics, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuan Xiao
- Department of Pediatrics, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jihong Ni
- Department of Pediatrics, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Wang
- Department of Pediatrics, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoyu Ma
- Department of Pediatrics, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiya Dong
- Department of Pediatrics, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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