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Yin XY, Chen HX, Chen Z, Yang Q, Han J, He GW. Identification and functional analysis of genetic variants of ISL1 gene promoter in human atrial septal defects. J Gene Med 2022; 24:e3450. [PMID: 36170181 DOI: 10.1002/jgm.3450] [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: 06/20/2022] [Revised: 08/16/2022] [Accepted: 09/25/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Atrial septal defect (ASD) is a common type of congenital heart disease. A gene promoter plays pivotal role in the disease development. This study was designed to investigate the pathological role of variants of the ISL1 gene promoter region in ASD patients. METHODS Total DNA extracted from 625 subjects, including 332 ASD patients and 293 healthy controls, was sequenced to identify variants in the promoter region of ISL1 gene. Further functional analyses of the variants were performed with dual luciferase reporter assay and electrophoretic mobility shift assay (EMSA). All possible binding sites of transcription factor affected by the identified variants were predicted using the JASPAR database. RESULTS Four variants in the ISL1 gene promoter were found only in patients with ASD by sequencing. Three of the four variants [g.4923 G > C (rs541081886), g.5079 A > G (rs1371835943) and g.5309 G > A (rs116222082)] significantly decreased the transcriptional activities compared with the wild-type ISL1 gene promoter (p < 0.05). The EMSA revealed that these variants [g.4923 G > C (rs541081886), g.5079 A > G (rs1371835943) and g.5309 G > A (rs116222082)] in the ISL1 gene promoter affected the number and affinity of binding sites of transcription factors. Further analysis with the online JASPAR database demonstrated that a cluster of putative binding sites for transcription factors may be altered by these variants. CONCLUSIONS These sequence variants identified from the promoter region of ISL1 gene in ASD patients are probably involved in the development of ASD by affecting the transcriptional activity and altering ISL1 levels. Therefore, these findings may provide new insights into the molecular etiology and potential therapeutic strategy of ASD.
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Affiliation(s)
- Xiu-Yun Yin
- School of Pharmacy, Drug Research & Development Center, Wannan Medical College, Wuhu, Anhui, China & The Institute of Cardiovascular Diseases, TEDA International Cardiovascular Hospital, Tianjin University & Chinese Academy of Medical Sciences, Tianjin, China
| | - Huan-Xin Chen
- The Institute of Cardiovascular Diseases & Department Cardiovascular Surgery, TEDA International Cardiovascular Hospital, Tianjin University & Chinese Academy of Medical Sciences, Tianjin, China
| | - Zhuo Chen
- School of Pharmacy, Drug Research & Development Center, Wannan Medical College, Wuhu, Anhui, China & The Institute of Cardiovascular Diseases, TEDA International Cardiovascular Hospital, Tianjin University & Chinese Academy of Medical Sciences, Tianjin, China
| | - Qin Yang
- The Institute of Cardiovascular Diseases & Department Cardiovascular Surgery, TEDA International Cardiovascular Hospital, Tianjin University & Chinese Academy of Medical Sciences, Tianjin, China
| | - Jun Han
- School of Pharmacy, Drug Research & Development Center, Wannan Medical College, Wuhu, Anhui, China
| | - Guo-Wei He
- The Institute of Cardiovascular Diseases & Department Cardiovascular Surgery, TEDA International Cardiovascular Hospital, Tianjin University & Chinese Academy of Medical Sciences, Tianjin, China
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Hao L, Ma J, Wu F, Ma X, Qian M, Sheng W, Yan T, Tang N, Jiang X, Zhang B, Xiao D, Qian Y, Zhang J, Jiang N, Zhou W, Chen W, Ma D, Huang G. WDR62 variants contribute to congenital heart disease by inhibiting cardiomyocyte proliferation. Clin Transl Med 2022; 12:e941. [PMID: 35808830 PMCID: PMC9270576 DOI: 10.1002/ctm2.941] [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: 02/08/2022] [Revised: 05/31/2022] [Accepted: 06/06/2022] [Indexed: 12/02/2022] Open
Abstract
Background Congenital heart disease (CHD) is the most common birth defect and has high heritability. Although some susceptibility genes have been identified, the genetic basis underlying the majority of CHD cases is still undefined. Methods A total of 1320 unrelated CHD patients were enrolled in our study. Exome‐wide association analysis between 37 tetralogy of Fallot (TOF) patients and 208 Han Chinese controls from the 1000 Genomes Project was performed to identify the novel candidate gene WD repeat‐containing protein 62 (WDR62). WDR62 variants were searched in another expanded set of 200 TOF patients by Sanger sequencing. Rescue experiments in zebrafish were conducted to observe the effects of WDR62 variants. The roles of WDR62 in heart development were examined in mouse models with Wdr62 deficiency. WDR62 variants were investigated in an additional 1083 CHD patients with similar heart phenotypes to knockout mice by multiplex PCR‐targeting sequencing. The cellular phenotypes of WDR62 deficiency and variants were tested in cardiomyocytes, and the molecular mechanisms were preliminarily explored by RNA‐seq and co‐immunoprecipitation. Results Seven WDR62 coding variants were identified in the 237 TOF patients and all were indicated to be loss of function variants. A total of 25 coding and 22 non‐coding WDR62 variants were identified in 80 (6%) of the 1320 CHD cases sequenced, with a higher proportion of WDR62 variation (8%) found in the ventricular septal defect (VSD) cohort. WDR62 deficiency resulted in a series of heart defects affecting the outflow tract and right ventricle in mouse models, including VSD as the major abnormality. Cell cycle arrest and an increased number of cells with multipolar spindles that inhibited proliferation were observed in cardiomyocytes with variants or knockdown of WDR62. WDR62 deficiency weakened the association between WDR62 and the cell cycle‐regulated kinase AURKA on spindle poles, reduced the phosphorylation of AURKA, and decreased expression of target genes related to cell cycle and spindle assembly shared by WDR62 and AURKA. Conclusions WDR62 was identified as a novel susceptibility gene for CHD with high variant frequency. WDR62 was shown to participate in the cardiac development by affecting spindle assembly and cell cycle pathway in cardiomyocytes.
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Affiliation(s)
- Lili Hao
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai, China.,Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Fudan University Shanghai Cancer Center, Shanghai, China
| | - Jing Ma
- ENT institute, Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Feizhen Wu
- Laboratory of Epigenetics, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Xiaojing Ma
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai, China
| | - Maoxiang Qian
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai, China
| | - Wei Sheng
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai, China
| | - Tizhen Yan
- Department of Medical Genetics, Department of Clinical Laboratory, Liuzhou Maternity and Child Healthcare Hospital, Liuzhou, Guangxi, China
| | - Ning Tang
- Department of Medical Genetics, Department of Clinical Laboratory, Liuzhou Maternity and Child Healthcare Hospital, Liuzhou, Guangxi, China
| | - Xin Jiang
- Medical Laboratory of Nantong ZhongKe, Nantong, Jiangsu
| | - Bowen Zhang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Deyong Xiao
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yanyan Qian
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai, China
| | - Jin Zhang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Nan Jiang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Wenhao Zhou
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai, China
| | - Weicheng Chen
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai, China
| | - Duan Ma
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai, China.,Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Guoying Huang
- Shanghai Key Laboratory of Birth Defects, Children's Hospital of Fudan University, Shanghai, China.,Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Diseases, Chinese Academy of Medical Sciences, Shanghai, China
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Feasibility of Cardiac Computed Tomography for the Evaluation of Ventricular Function in Postoperative Children With Congenital Heart Disease: Comparison With Cardiac Magnetic Resonance Imaging. J Comput Assist Tomogr 2021; 45:537-543. [PMID: 34519452 DOI: 10.1097/rct.0000000000001155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE We explored the feasibility of cardiac computed tomography (CCT) to evaluate postoperative ventricular function in children with congenital heart disease (CHD) and evaluated the accuracy and reproducibility of CCT using cardiac magnetic resonance (CMR) as a reference. METHODS Thirty-two postoperative children with CHD (20 boys and 12 girls) who underwent CMR and CCT were enrolled. Left and right ventricular ejection fraction, end-diastolic volume, end-systolic volume, stroke volume, and cardiac index were measured using cardiac function analysis software. Cardiac function data were compared between CMR and CCT. The agreement between the 2 modalities was assessed using a Bland-Altman analysis. Intraclass correlation coefficients were used to assess intraobserver and interobserver reproducibility in CCT functional measurements. RESULTS All functional parameters showed no significant difference (P > 0.05) and were well-correlated (r > 0.5, P < 0.05) between CMR and CCT. The mean values of all ventricular function parameters in CCT were higher compared with CMR. As indicated by 95% limits of agreement, left ventricular function parameters showed a better level of agreement compared with right ventricular function parameters between the 2 modalities. Intraobserver and interobserver reproducibility were excellent in CCT measurements for all functional parameters (intraclass correlation coefficient > 0.9). CONCLUSIONS Compared with the criterion standard of CMR, CCT is feasible for assessing postoperative ventricular function with sufficient diagnostic accuracy and reproducibility in children with CHD. In addition to its important role regarding anatomical characterization, CCT is a suitable alternative and convenient follow-up tool that can be used to functional evaluation in children who are intolerant with CMR or have contraindications to CMR.
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Xie WH, Chen LJ, Hu LW, Ouyang RZ, Guo C, Sun AM, Wang Q, Qiu HS, Yan Q, Zhang YQ, Zhong YM. Postoperative evaluation of left ventricular global strain using cardiac computed tomography in pediatric patients with congenital heart disease: A comparison with echocardiography. Eur J Radiol 2021; 142:109868. [PMID: 34311155 DOI: 10.1016/j.ejrad.2021.109868] [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: 11/19/2020] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE We explored the feasibility and reproducibility of cardiac computed tomography (CCT)-derived left ventricular (LV) global strain in postoperative children
with congenital heart disease (CHD) and compared its correlation and agreement with transthoracic echocardiography (TTE). METHODS Fifty-one patients (28 males, 23 females) were included who underwent clinically indicated retrospective electrocardiography-triggered CCT. and all patients underwent additional TTE on the same day. LV global longitudinal strain (GLS), global circumferential strain (GCS), and global radial strain (GRS) were measured. Correlations of global strains between CCT and TTE were assessed using Pearson's correlation coefficient. Intra-class correlation coefficients (ICC) were used to assess CCT intra-observer and inter-observer reproducibility. RESULTS GLS and GCS were not significantly different between CCT and TTE (GLS: -23.54 ± 3.24 vs. -23.85 ± 3.72, respectively, p = 0.415; GCS: -28.21 ± 3.55 vs. -28.79 ± 3.69, respectively, p = 0.155). GRS was significantly different between CCT and TTE (60.79 ± 15.11 vs. 41.73 ± 4.27, respectively, p < 0.001). There was good correlation between CCT- and TTE-derived GLS (r = 0.70, p < 0.001) and GCS (r = 0.68, p < 0.001), but GRS showed no correlation between CCT and TTE (r = 0.09, p = 0.54). CCT-derived global strain showed good intra- and inter-observer reproducibility (ICC = 0.86-0.92), except the inter-observer reproducibility for GRS (ICC = 0.77). CONCLUSIONS CCT was feasible for postoperative evaluation of LV global strain in pediatric patients with CHD with sufficient reproducibility. CCT-derived global strain can provide additional information in selected CHD patients with poor acoustic windows and who are intolerant to or have contraindications for cardiac magnetic resonance.
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Affiliation(s)
- Wei-Hui Xie
- Diagnostic Imaging Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Li-Jun Chen
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Li-Wei Hu
- Diagnostic Imaging Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Rong-Zhen Ouyang
- Diagnostic Imaging Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Chen Guo
- Diagnostic Imaging Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Ai-Min Sun
- Diagnostic Imaging Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Qian Wang
- Diagnostic Imaging Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Hai-Sheng Qiu
- Diagnostic Imaging Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Qin Yan
- Department of Cardiovascular Thoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Yu-Qi Zhang
- Department of Pediatric Cardiology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
| | - Yu-Min Zhong
- Diagnostic Imaging Center, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dong Fang Road, Shanghai 200127, PR China.
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Small HY, Guzik TJ. High impact Cardiovascular Research: beyond the heart and vessels. Cardiovasc Res 2019; 115:e166-e171. [PMID: 31697316 DOI: 10.1093/cvr/cvz272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Heather Y Small
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, 126 University Place, University of Glasgow, Glasgow, UK
| | - Tomasz J Guzik
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, 126 University Place, University of Glasgow, Glasgow, UK.,Department of Internal and Agricultural Medicine, Jagiellonian University Collegium Medicum, 31-008 Anny 12, Krakow, Poland
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Kajimoto M, Nuri M, Isern NG, Robillard-Frayne I, Des Rosiers C, Portman MA. Metabolic Response to Stress by the Immature Right Ventricle Exposed to Chronic Pressure Overload. J Am Heart Assoc 2019; 8:e013169. [PMID: 31450994 PMCID: PMC6755848 DOI: 10.1161/jaha.119.013169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background The right ventricle exposed to chronic pressure overload exhibits hypertrophy and decompensates when exposed to stress. We hypothesize that impaired ability to increase myocardial oxidative flux through pyruvate dehydrogenase leads to hypertrophied right ventricular (RV) dysfunction when exposed to hemodynamic stress, and pyruvate dehydrogenase stimulation can improve RV function. Methods and Results Infant male Yorkshire piglets (13.5±0.6 kg weight, n=19) were used to assess substrate fractional contribution to the citric acid cycle after sustained pulmonary artery banding (PAB). Carbon 13–labeled glucose, lactate, and leucine, oxidative substrate tracers for the citric acid cycle, were infused into the right coronary artery on 7 to 10 days after PAB. RV systolic pressure, RV free wall thickness, and individual cardiomyocyte cell size after PAB were significantly elevated compared with the sham group. Both fractional glucose and lactate oxidations in the PAB group were >2‐fold higher than in the sham group. Pigs with overdrive atrial pacing (≈80% increase in heart rate) stress after PAB showed only a 22% increase in rate‐pressure product from baseline before atrial pacing and limited carbohydrate oxidation rate in the right ventricle. Intracoronary infusion of dichloroacetate, a pyruvate dehydrogenase agonist, produced higher rate‐pressure product (59% increase) in response to increased workload by atrial pacing in association with a marked increase in lactate oxidation. Conclusions The immature hypertrophied right ventricle shows limited ability to increase carbohydrate oxidation in response to tachycardia stress leading to energy supply/utilization imbalance and decreased systolic function. Enhanced pyruvate dehydrogenase activation by dichloroacetate increases energy supply and preserves hypertrophied RV contractile function during hemodynamic stress.
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Affiliation(s)
- Masaki Kajimoto
- Center for Integrative Brain Research Seattle Children's Research Institute Seattle WA
| | - Muhammad Nuri
- Center for Integrative Brain Research Seattle Children's Research Institute Seattle WA.,Division of Pediatric Cardiac Surgery Seattle Children's Hospital Seattle WA
| | - Nancy G Isern
- Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratories Richland WA
| | | | - Christine Des Rosiers
- Department of Nutrition Université de Montréal and Montreal Heart Institute Montréal Quebec Canada
| | - Michael A Portman
- Center for Integrative Brain Research Seattle Children's Research Institute Seattle WA.,Division of Cardiology Department of Pediatrics University of Washington Seattle WA
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