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Wang Z, Liu XY, Yang CX, Zhou HM, Li YJ, Qiu XB, Huang RT, Cen SS, Wang Y, Xu YJ, Qiu HY, Yang YQ. Discovery and functional investigation of BMP4 as a new causative gene for human congenital heart disease. Am J Transl Res 2024; 16:2034-2048. [PMID: 38883374 PMCID: PMC11170606 DOI: 10.62347/dgcd4269] [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: 02/06/2024] [Accepted: 05/06/2024] [Indexed: 06/18/2024]
Abstract
OBJECTIVE Aggregating evidence highlights the strong genetic basis underpinning congenital heart disease (CHD). Here BMP4 was chosen as a prime candidate gene causative of human CHD predominantly because BMP4 was amply expressed in the embryonic hearts and knockout of Bmp4 in mice led to embryonic demise mainly from multiple cardiovascular developmental malformations. The aim of this retrospective investigation was to discover a novel BMP4 mutation underlying human CHD and explore its functional impact. METHODS A sequencing examination of BMP4 was implemented in 212 index patients suffering from CHD and 236 unrelated non-CHD individuals as well as the family members available from the proband carrying a discovered BMP4 mutation. The impacts of the discovered CHD-causing mutation on the expression of NKX2-5 and TBX20 induced by BMP4 were measured by employing a dual-luciferase analysis system. RESULTS A new heterozygous BMP4 mutation, NM_001202.6:c.318T>G;p.(Tyr106*), was found in a female proband affected with familial CHD. Genetic research of the mutation carrier's relatives unveiled that the truncating mutation was in co-segregation with CHD in the pedigree. The nonsense mutation was absent from 236 unrelated non-CHD control persons. Quantitative biologic measurement revealed that Tyr106*-mutant BMP4 failed to induce the expression of NKX2-5 and TBX20, two genes whose expression is lost in CHD. CONCLUSION The current findings indicate BMP4 as a new gene predisposing to human CHD, allowing for improved prenatal genetic counseling along with personalized treatment of CHD patients.
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Affiliation(s)
- Zhi Wang
- Department of Cardiovascular Medicine, Women and Children's Hospital of Ningbo University Ningbo 315012, Zhejiang, China
| | - Xing-Yuan Liu
- Department of Pediatrics, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Chen-Xi Yang
- Department of Cardiology, Shanghai Fifth People's Hospital, Fudan University Shanghai 200240, China
| | - Hui-Min Zhou
- Department of Pediatrics, Tongji Hospital, Tongji University School of Medicine Shanghai 200065, China
| | - Yan-Jie Li
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai 200030, China
| | - Xing-Biao Qiu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai 200030, China
| | - Ri-Tai Huang
- Department of Cardiovascular Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine Shanghai 200127, China
| | - Shu-Shu Cen
- Health Science Center, Ningbo University Ningbo 315211, Zhejiang, China
| | - Yuan Wang
- Health Science Center, Ningbo University Ningbo 315211, Zhejiang, China
| | - Ying-Jia Xu
- Department of Cardiology, Shanghai Fifth People's Hospital, Fudan University Shanghai 200240, China
| | - Hai-Yan Qiu
- Department of Cardiovascular Medicine, Women and Children's Hospital of Ningbo University Ningbo 315012, Zhejiang, China
| | - Yi-Qing Yang
- Department of Cardiology, Shanghai Fifth People's Hospital, Fudan University Shanghai 200240, China
- Department of Cardiovascular Research Laboratory, Shanghai Fifth People's Hospital, Fudan University Shanghai 200240, China
- Department of Central Laboratory, Shanghai Fifth People's Hospital, Fudan University Shanghai 200240, China
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Abhinav P, Li YJ, Huang RT, Liu XY, Gu JN, Yang CX, Xu YJ, Wang J, Yang YQ. Somatic GATA4 mutation contributes to tetralogy of Fallot. Exp Ther Med 2024; 27:91. [PMID: 38274337 PMCID: PMC10809308 DOI: 10.3892/etm.2024.12379] [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: 09/18/2023] [Accepted: 12/07/2023] [Indexed: 01/27/2024] Open
Abstract
Tetralogy of Fallot (TOF) is the most prevalent cyanotic congenital heart pathology and causes infant morbidity and mortality worldwide. GATA-binding protein 4 (GATA4) serves as a pivotal transcriptional factor for embryonic cardiogenesis and germline GATA4 mutations are causally linked to TOF. However, the effects of somatic GATA4 mutations on the pathogenesis of TOF remain to be ascertained. In the present study, sequencing assay of GATA4 was performed utilizing genomic DNA derived from resected heart tissue specimens as well as matched peripheral blood specimens of 62 patients with non-familial TOF who underwent surgical treatment for TOF. Sequencing of GATA4 was also performed using the heart tissue specimens as well as matched peripheral venous blood samples of 68 sporadic cases who underwent heart valve displacement because of rheumatic heart disorder and the peripheral venous whole blood samples of 216 healthy subjects. The function of the mutant was explored by dual-luciferase activity analysis. Consequently, a new GATA4 mutation, NM_002052.5:c.708T>G;p.(Tyr236*), was found in the heart tissue of one patient with TOF. No mutation was detected in the heart tissue of the 68 cases suffering from rheumatic heart disorder or in the venous blood samples of all 346 individuals. GATA4 mutant failed to transactivate its target gene, myosin heavy chain 6. Additionally, this mutation nullified the synergistic transactivation between GATA4 and T-box transcription factor 5 or NK2 homeobox 5, two genes causative for TOF. Somatic GATA4 mutation predisposes TOF, highlighting the significant contribution of somatic variations to the molecular pathogenesis underpinning TOF.
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Affiliation(s)
- Pradhan Abhinav
- Department of Cardiology, East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Yan-Jie Li
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, P.R. China
| | - Ri-Tai Huang
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Xing-Yuan Liu
- Department of Pediatrics, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
| | - Jia-Ning Gu
- Department of Cardiology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, P.R. China
| | - Chen-Xi Yang
- Department of Cardiology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, P.R. China
| | - Ying-Jia Xu
- Department of Cardiology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, P.R. China
| | - Juan Wang
- Department of Cardiology, East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Yi-Qing Yang
- Department of Cardiology, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, P.R. China
- Cardiovascular Research Laboratory, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, P.R. China
- Central Laboratory, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200240, P.R. China
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Dong BB, Li YJ, Liu XY, Huang RT, Yang CX, Xu YJ, Lv HT, Yang YQ. Discovery of BMP10 as a new gene underpinning congenital heart defects. Am J Transl Res 2024; 16:109-125. [PMID: 38322548 PMCID: PMC10839403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/27/2023] [Indexed: 02/08/2024]
Abstract
OBJECTIVE Aggregating evidence convincingly establishes the predominant genetic basis underlying congenital heart defects (CHD), though the heritable determinants contributing to CHD in the majority of cases remain elusive. In the current investigation, BMP10 was selected as a prime candidate gene for human CHD mainly due to cardiovascular developmental abnormalities in Bmp10-knockout animals. The objective of this retrospective study was to identify a new BMP10 mutation responsible for CHD and characterize the functional effect of the identified CHD-causing BMP10 mutation. METHODS Sequencing assay of BMP10 was fulfilled in a cohort of 276 probands with various CHD and a total of 288 non-CHD volunteers. The available family members from the proband harboring an identified BMP10 mutation were also BMP10-genotyped. The effect of the identified CHD-causative BMP10 mutation on the transactivation of TBX20 and NKX2.5 by BMP10 was quantitatively analyzed in maintained HeLa cells utilizing a dual-luciferase reporter assay system. RESULTS A novel heterozygous BMP10 mutation, NM_014482.3:c.247G>T;p.(Glu83*), was identified in one proband with patent ductus arteriosus (PDA), which was confirmed to co-segregate with the PDA phenotype in the mutation carrier's family. The nonsense mutation was not observed in 288 non-CHD volunteers. Functional analysis unveiled that Glu83*-mutant BMP10 had no transactivation on its two representative target genes TBX20 and NKX2.5, which were both reported to cause CHD. CONCLUSION These findings provide strong evidence indicating that genetically compromised BMP10 predisposes human beings to CHD, which sheds light on the new molecular mechanism that underlies CHD and allows for antenatal genetic counseling and individualized precise management of CHD.
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Affiliation(s)
- Bin-Bin Dong
- Department of Cardiology, Children’s Hospital of Soochow UniversitySuzhou 215003, Jiangsu, China
| | - Yan-Jie Li
- Department of Cardiology, Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong UniversityShanghai 200030, China
| | - Xing-Yuan Liu
- Department of Pediatrics, Tongji Hospital, Tongji University School of MedicineShanghai 200065, China
| | - Ri-Tai Huang
- Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong UniversityShanghai 200127, China
| | - Chen-Xi Yang
- Department of Cardiology, Shanghai Fifth People’s Hospital, Fudan UniversityShanghai 200240, China
| | - Ying-Jia Xu
- Department of Cardiology, Shanghai Fifth People’s Hospital, Fudan UniversityShanghai 200240, China
| | - Hai-Tao Lv
- Department of Cardiology, Children’s Hospital of Soochow UniversitySuzhou 215003, Jiangsu, 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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