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Huang RT, Guo YH, Yang CX, Gu JN, Qiu XB, Shi HY, Xu YJ, Xue S, Yang YQ. SOX7 loss-of-function variation as a cause of familial congenital heart disease. Am J Transl Res 2022; 14:1672-1684. [PMID: 35422912 PMCID: PMC8991148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
INTRODUCTION As the most frequent type of birth defect in humans, congenital heart disease (CHD) leads to a large amount of morbidity and mortality as well as a tremendous socioeconomic burden. Accumulating studies have convincingly substantiated the pivotal roles of genetic defects in the occurrence of familial CHD, and deleterious variations in a great number of genes have been reported to cause various types of CHD. However, owing to pronounced genetic heterogeneity, the hereditary components underpinning CHD remain obscure in most cases. This investigation aimed to identify novel genetic determinants underlying CHD. METHODS AND RESULTS A four-generation pedigree with high incidence of autosomal-dominant CHD was enrolled from the Chinese Han race population. Using whole-exome sequencing and Sanger sequencing assays of the family members available, a novel SOX7 variation in heterozygous status, NM_031439.4: c.310C>T; p.(Gln104*), was discovered to be in co-segregation with the CHD phenotype in the whole family. The truncating variant was absent in 500 unrelated healthy subjects utilized as control individuals. Functional measurements by dual-luciferase reporter analysis revealed that Gln104*-mutant SOX7 failed to transactivate its two important target genes, GATA4 and BMP2, which are both responsible for CHD. In addition, the nonsense variation invalidated the cooperative transactivation between SOX7 and NKX2.5, which is another recognized CHD-causative gene. CONCLUSION The present study demonstrates for the first time that genetically defective SOX7 predisposes to CHD, which sheds light on the novel molecular mechanism underpinning CHD, and implies significance for precise prevention and personalized treatment in a subset of CHD patients.
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Affiliation(s)
- Ri-Tai Huang
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong UniversityShanghai 200127, China
| | - Yu-Han Guo
- Department of Cardiology, Shanghai Fifth People’s Hospital, Fudan UniversityShanghai 200240, China
| | - Chen-Xi Yang
- Department of Cardiology, Shanghai Fifth People’s Hospital, Fudan UniversityShanghai 200240, China
| | - Jia-Ning Gu
- Department of Cardiology, Shanghai Fifth People’s Hospital, Fudan UniversityShanghai 200240, China
| | - Xing-Biao Qiu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong UniversityShanghai 200030, China
| | - Hong-Yu Shi
- Department of Cardiology, Zhongshan Hospital Wusong Branch, Fudan UniversityShanghai 200940, China
| | - Ying-Jia Xu
- Department of Cardiology, Shanghai Fifth People’s Hospital, Fudan UniversityShanghai 200240, China
| | - Song Xue
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong UniversityShanghai 200127, China
| | - Yi-Qing Yang
- Department of Cardiology, Shanghai Fifth People’s Hospital, Fudan UniversityShanghai 200240, China
- Department of Cardiovascular Research Laboratory, Shanghai Fifth People’s Hospital, Fudan UniversityShanghai 200240, China
- Department of Central Laboratory, Shanghai Fifth People’s Hospital, Fudan UniversityShanghai 200240, China
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Al-Hamed MH, Kurdi W, Khan R, Tulbah M, AlNemer M, AlSahan N, AlMugbel M, Rafiullah R, Assoum M, Monies D, Shah Z, Rahbeeni Z, Derar N, Hakami F, Almutairi G, AlOtaibi A, Ali W, AlShammasi A, AlMubarak W, AlDawoud S, AlAmri S, Saeed B, Bukhari H, Ali M, Akili R, Alquayt L, Hagos S, Elbardisy H, Akilan A, Almuhana N, AlKhalifah A, Abouelhoda M, Ramzan K, Sayer JA, Imtiaz F. Prenatal exome sequencing and chromosomal microarray analysis in fetal structural anomalies in a highly consanguineous population reveals a propensity of ciliopathy genes causing multisystem phenotypes. Hum Genet 2021; 141:101-126. [PMID: 34853893 DOI: 10.1007/s00439-021-02406-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/26/2021] [Indexed: 12/25/2022]
Abstract
Fetal abnormalities are detected in 3% of all pregnancies and are responsible for approximately 20% of all perinatal deaths. Chromosomal microarray analysis (CMA) and exome sequencing (ES) are widely used in prenatal settings for molecular genetic diagnostics with variable diagnostic yields. In this study, we aimed to determine the diagnostic yield of trio-ES in detecting the cause of fetal abnormalities within a highly consanguineous population. In families with a history of congenital anomalies, a total of 119 fetuses with structural anomalies were recruited and DNA from invasive samples were used together with parental DNA samples for trio-ES and CMA. Data were analysed to determine possible underlying genetic disorders associated with observed fetal phenotypes. The cohort had a known consanguinity of 81%. Trio-ES led to diagnostic molecular genetic findings in 59 fetuses (with pathogenic/likely pathogenic variants) most with multisystem or renal abnormalities. CMA detected chromosomal abnormalities compatible with the fetal phenotype in another 7 cases. Monogenic ciliopathy disorders with an autosomal recessive inheritance were the predominant cause of multisystem fetal anomalies (24/59 cases, 40.7%) with loss of function variants representing the vast majority of molecular genetic abnormalities. Heterozygous de novo pathogenic variants were found in four fetuses. A total of 23 novel variants predicted to be associated with the phenotype were detected. Prenatal trio-ES and CMA detected likely causative molecular genetic defects in a total of 55% of families with fetal anomalies confirming the diagnostic utility of trio-ES and CMA as first-line genetic test in the prenatal diagnosis of multisystem fetal anomalies including ciliopathy syndromes.
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Affiliation(s)
- Mohamed H Al-Hamed
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, MBC# 26, P. O. Box 3354, Riyadh, Saudi Arabia.
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia.
| | - Wesam Kurdi
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Rubina Khan
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Maha Tulbah
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Maha AlNemer
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Nada AlSahan
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Maisoon AlMugbel
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Rafiullah Rafiullah
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia
| | - Mirna Assoum
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia
| | - Dorota Monies
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, MBC# 26, P. O. Box 3354, Riyadh, Saudi Arabia
| | - Zeeshan Shah
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, MBC# 26, P. O. Box 3354, Riyadh, Saudi Arabia
| | - Zuhair Rahbeeni
- Medical Genetics Department, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, Saudi Arabia
| | - Nada Derar
- Medical Genetics Department, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, Saudi Arabia
| | - Fahad Hakami
- King Abdulaziz Medical City/King Saud bin Abdulaziz University for Health Science, Jeddah, Saudi Arabia
| | - Gawaher Almutairi
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Afaf AlOtaibi
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia
| | - Wafaa Ali
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia
| | - Amal AlShammasi
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia
| | - Wardah AlMubarak
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Samia AlDawoud
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Saja AlAmri
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Bashayer Saeed
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Hanifa Bukhari
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Mohannad Ali
- Department of Obstetrics and Genecology, King Faisal Specialist Hospital and Research Centre, P. O. Box 3354, Riyadh, 11211, Saudi Arabia
| | - Rana Akili
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, MBC# 26, P. O. Box 3354, Riyadh, Saudi Arabia
| | - Laila Alquayt
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, MBC# 26, P. O. Box 3354, Riyadh, Saudi Arabia
| | - Samia Hagos
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, MBC# 26, P. O. Box 3354, Riyadh, Saudi Arabia
| | - Hadeel Elbardisy
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia
| | - Asma Akilan
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia
| | - Nora Almuhana
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia
| | - Abrar AlKhalifah
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia
| | - Mohamed Abouelhoda
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, MBC# 26, P. O. Box 3354, Riyadh, Saudi Arabia
| | - Khushnooda Ramzan
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, MBC# 26, P. O. Box 3354, Riyadh, Saudi Arabia
| | - John A Sayer
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Central Parkway, Newcastle upon Tyne, NE1 3BZ, UK
- Renal Services, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, NE7 7DN, UK
- NIHR Newcastle Biomedical Research Centre, Newcastle University, Tyne and Wear, Newcastle upon Tyne, NE4 5PL, UK
| | - Faiqa Imtiaz
- Centre for Genomic Medicine, King Faisal Specialist Hospital and Research Centre, MBC# 26, P. O. Box 3354, Riyadh, Saudi Arabia.
- Saudi Diagnostics Laboratory, KFSHI, P.O.BOX 6802, Riyadh, 12311, Saudi Arabia.
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