Transcriptomic profiling of human induced pluripotent stem cells derived cardiomyocytes (hiPSC-CMs) and cardiac progentiors (hiPSC-CPs) from tetralogy of Fallot (TOF) patients with DiGeorge Syndrome (DG) and without DiGeorge Syndrome (ND)
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE186293 | GEO | 2023/08/29
REPOSITORIES: GEO
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Project description:Transcriptomic profiling of human induced pluripotent stem cells derived cardiomyocytes (hiPSC-CMs) and cardiac progentiors (hiPSC-CPs) from tetralogy of Fallot (TOF) patients with DiGeorge Syndrome (DG) and without DiGeorge Syndrome (ND)
| PRJNA773178 | ENA
Project description:To verify the presence and absence of microdeletion on chromosome 22 in TOF-DG patients and TOF-ND patients/control, respectively.
| EGAS00001006035 | EGA
Project description:Tetralogy of Fallot (TOF) is the most common cyanotic congenital heart defect with a world-wide prevalence of 3 to 4 cases per 10,000 life births. TOF is a congenital heart disease with four major cardiac defects, i.e., ventricular septal defect, overriding aortic root, infundibular stenosis of the pulmonary artery, and right ventricular hypertrophy. Treatment relies on correction surgery in early infancy. This study performed whole genome microarray gene expression profiling of cardiac specimens of the right ventricular outflow tract (RVOT), which were recovered during correction surgery of TOF from 11 pediatric patients diagnosed with TOF cardiac defects.
2023-09-18 | GSE241024 | GEO
Project description:Tetralogy of Fallot (TOF) is the most common cyanotic congenital heart disease. Ventricular dysfunction and cardiac arrhythmias are well-documented complications in patients with repaired TOF. Whether intrinsic abnormalities exist in TOF cardiomyocytes is unknown. We establish human induced pluripotent stem cells (hiPSCs) from TOF patients with and without DiGeorge (DG) syndrome, the latter being the most commonly associated syndromal association of TOF. TOF-DG hiPSC-derived cardiomyocytes (hiPSC-CMs) show impaired ventricular specification, downregulated cardiac gene expression and upregulated neural gene expression. Transcriptomic profiling of the in vitro cardiac progenitors reveals early bifurcation, as marked by ectopic RGS13 expression, in the trajectory of TOF-DG-hiPSC cardiac differentiation. Functional assessments further reveal increased arrhythmogenicity in TOF-DG-hiPSC-CMs. These findings are found only in the TOF-DG but not TOF-with no DG (ND) patient-derived hiPSC-CMs and cardiac progenitors (CPs), which have implications on the worse clinical outcomes of TOF-DG patients.
| S-EPMC10516936 | biostudies-literature
Project description:Tetralogy of Fallot (TOF), the most frequent cyanotic congenital heart disease, occurs as a simplex trait of unknown etiology in the majority of cases. Studies of non-Asian populations suggest that approximately 10% of TOF cases carry a de novo rare copy number variant (CNV) thought to underlie the malformation. A genome-wide CNV analysis was performed in 303 TOF and 302 controls of Han Chinese as well as compared to 1,000 common Chinese database and revealed 166 rare CNVs identified in TOF patients with 119 CNVs further evaluated as potential “TOF-specific CNVs”; 98 were validated by qPCR, and 44 CNVs showed positive results on validation (positive rate 46.9%, 44/98). The genes related to the clinical phenotypes (subpulmonary VSD, bicuspid pulmonary valve, aortic valve overriding more than 75%, and right aortic arch) and the specific CNVs were included in integrating gene-gene interaction network analysis that identified the genes covering the specific CNVs directly or indirectly correlated to TOF and the signaling pathways. Thus, this study identified novel TOF-specific/associate CNVs in the Han Chinese that occurring at higher frequency in the Han Chinese (28.4% in Chr 1-20 and 42.9% in all chromosomes) is reflective of the increased prevalence of TOF in China. These novel CNVs identify new candidate genes for TOF. Our findings provide new insight into the contribution of CNVs to the genetic basis of TOF and identify new genetic loci potentially important to the pathogenesis of TOF
2021-01-01 | GSE151767 | GEO
Project description:Small RNAs, especially the microRNAs, have been revealed to play great roles in heart development and congenital heart defects. Several studies have shown dysregulated miRNAs in ventricular tissues of Tetralogy of Fallot (TOF) patients. In the present study, we conducted high throughput sequencing to obtain the global profiling of small RNA transcriptome in heart right ventricular samples from 10 age -matched TOF patients. These samples showed dominant composition of miRNA and mitochondrial associated RNAs. By sRNA cluster identification and differential gene expression analysis, significant sexual difference was discovered for sRNA expression in TOF patients. miR-1/miR-133, the first identified miRNA cluster essential for cardiac development, account for the most variance of sRNA expression between sexes. Our results suggested divergent molecular basis between female and male TOF patients.
2018-12-21 | GSE113511 | GEO
Project description:Tetralogy of Fallot (TOF) is the most common cyanotic congenital heart disease (CHD). Amniotic fluid (AF) contains a higher abundance of biological compounds which could direct reflect the information of fetal health. AF-derived exosomal miRNAs have been investigated as etiological factors in the pathogenesis of TOF. The purpose of this study was to analyze the expression of AF-derived exosomal miRNAs and their roles in TOF development. In this study, we identified differentially expressed (DE)-miRNAs between TOF group and control group. A total of 257 miRNAs were differentially expressed (DE) between TOF and control groups. KEGG pathway enrichment demonstrated that these target genes of DE-miRNAs were involved in Wnt and Notch signaling pathway. Twenty five of 257 DE-miRNAs were overlapped with Notch-regulated and Wnt-regulated miRNAs simultaneously.
2021-10-19 | GSE186059 | GEO
Project description:Tetralogy of Fallot (ToF) and Atrial Septal Defects (ASD) are the most common types of congenital heart disease and a major cause of childhood morbidity and mortality. Cardiopulmonary bypass (CPB) is used during corrective cardiac surgery to support circulation and heart stabilization. However, this technique triggers systemic inflammatory and stress response and consequent increased risk of postoperative complications. The aim of this study was to define the molecular bases of ToF and ASD pathogenesis and response to CPB and identify new specific biomarkers. We conducted comparative transcriptome analysis of right atrial biopsies from 10 ToF and 10 ASD patients before (Pre-CPB) and after (Post-CPB) surgery. Pre-CPB samples showed significant differential expression of 72 genes (DEGs), 28 of which were overexpressed in ToF and 44 in ASD. According to Gene Ontology annotation, the mostly enriched biological processes were represented by matrix organization and cell adhesion in ToF and by muscle development and contractility in ASD specimens. GSEA highlighted the specific enrichment of known hypoxia gene sets in ToF samples, pointing to a role for hypoxia in disease pathogenesis. The post-CPB myocardium exhibited significant alterations in the expression profile of genes related to transcription regulation, growth/apoptosis, inflammation, cell adhesion/matrix organization, and oxidative stress. Among DEGs, only 70 were common to the two disease groups, whereas 110 and 24 were unique in ToF and ASD, respectively. Interestingly, gene expression changes in ASD samples followed a consensus hypoxia profile. These data define ToF- and ASD-specific myocardial transcriptional signatures and demonstrate differential gene reprogramming in response to CPB in the two pathologies, with potential prognostic and therapeutic implications.
2020-01-21 | GSE132176 | GEO
Project description:This is the first report characterizing noncoding RNA expression in a congenital heart defect. The striking shift in expression of noncoding RNAs reflects a fundamental change in cell biology, likely impacting expression, transcript splicing and translation of developmentally important genes and possibly contributing to the cardiac defect. The importance of noncoding RNAs (ncRNA), especially microRNAs, for maintaining stability in the developing vertebrate heart has recently become apparent. However, there is little known about the expression pattern of ncRNA in the human heart with developmental anomalies. We examined the expression of microRNAs and small nucleolar RNAs (snoRNAs) in right ventricular myocardium from 16 infants with nonsyndromic tetralogy of Fallot (TOF) without a 22q11.2 deletion, three fetal heart samples and eight normally developing infants. We found 61 microRNAs and 135 snoRNAs to be significantly changed in expression in myocardium from children with TOF compared to normally developing comparison subjects. The pattern of ncRNA expression in TOF myocardium had a remarkable resemblance to expression patterns in fetal myocardium, especially for the snoRNAs. Potential targets of microRNAs with altered expression were enriched for gene networks of importance to cardiac development. We derived a list of 229 genes known to be critical to heart development and found 44 had significantly changed expression in TOF myocardium relative to normally developing myocardium. These 44 genes had significant negative correlation with 33 microRNAs, each of which also had significantly changed expression. The primary function of snoRNAs is targeting specific nucleotides of ribosomal RNAs and spliceosomal RNAs for biochemical modification. The targeted nucleotides of the differentially expressed snoRNAs were concentrated in the 28S and 18S ribosomal RNAs and two spliceosomal RNAs, U2 and U6. In addition, in myocardium from children with TOF, we observed splicing variants in 51% of the critical cardiac developmental genes. Taken together, these observations suggest a link between snoRNA level in the myocardium, spliceosomal function and heart development. We examined the expression of microRNAs and small nucleolar RNAs (snoRNAs) in right ventricular myocardium from 16 infants with nonsyndromic tetralogy of Fallot (TOF) without a 22q11.2 deletion, three fetal heart samples and eight normally developing infants
2012-07-11 | E-GEOD-35490 | biostudies-arrayexpress
Project description:Proteomic analysis of hiPSC-CMs with drug treatment
2021-05-01 | MSV000087351 | MassIVE