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Chea S, Kreger J, Lopez-Burks ME, MacLean AL, Lander AD, Calof AL. Gastrulation-stage gene expression in Nipbl+/- mouse embryos foreshadows the development of syndromic birth defects. SCIENCE ADVANCES 2024; 10:eadl4239. [PMID: 38507484 PMCID: PMC10954218 DOI: 10.1126/sciadv.adl4239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 02/15/2024] [Indexed: 03/22/2024]
Abstract
In animal models, Nipbl deficiency phenocopies gene expression changes and birth defects seen in Cornelia de Lange syndrome, the most common cause of which is Nipbl haploinsufficiency. Previous studies in Nipbl+/- mice suggested that heart development is abnormal as soon as cardiogenic tissue is formed. To investigate this, we performed single-cell RNA sequencing on wild-type and Nipbl+/- mouse embryos at gastrulation and early cardiac crescent stages. Nipbl+/- embryos had fewer mesoderm cells than wild-type and altered proportions of mesodermal cell subpopulations. These findings were associated with underexpression of genes implicated in driving specific mesodermal lineages. In addition, Nanog was found to be overexpressed in all germ layers, and many gene expression changes observed in Nipbl+/- embryos could be attributed to Nanog overexpression. These findings establish a link between Nipbl deficiency, Nanog overexpression, and gene expression dysregulation/lineage misallocation, which ultimately manifest as birth defects in Nipbl+/- animals and Cornelia de Lange syndrome.
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Affiliation(s)
- Stephenson Chea
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California Irvine, Irvine, CA 92697, USA
- Center for Complex Biological Systems, University of California Irvine, Irvine, CA 92697, USA
| | - Jesse Kreger
- Department of Quantitative and Computational Biology, Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Martha E. Lopez-Burks
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California Irvine, Irvine, CA 92697, USA
- Center for Complex Biological Systems, University of California Irvine, Irvine, CA 92697, USA
| | - Adam L. MacLean
- Department of Quantitative and Computational Biology, Dornsife College of Letters, Arts, and Sciences, University of Southern California, Los Angeles, CA 90089, USA
| | - Arthur D. Lander
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California Irvine, Irvine, CA 92697, USA
- Center for Complex Biological Systems, University of California Irvine, Irvine, CA 92697, USA
| | - Anne L. Calof
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California Irvine, Irvine, CA 92697, USA
- Center for Complex Biological Systems, University of California Irvine, Irvine, CA 92697, USA
- Department of Anatomy and Neurobiology, School of Medicine, University of California Irvine, Irvine, CA 92697, USA
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Wang Y, Xu YJ, Yang CX, Huang RT, Xue S, Yuan F, Yang YQ. SMAD4 loss-of-function mutation predisposes to congenital heart disease. Eur J Med Genet 2022; 66:104677. [PMID: 36496093 DOI: 10.1016/j.ejmg.2022.104677] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 11/15/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Congenital heart disease (CHD) represents the most frequent developmental deformity in human beings and accounts for substantial morbidity and mortality worldwide. Accumulating investigations underscore the strong inherited basis of CHD, and pathogenic variations in >100 genes have been related to CHD. Nevertheless, the heritable defects underpinning CHD remain elusive in most cases, mainly because of the pronounced genetic heterogeneity. In this investigation, a four-generation family with CHD was recruited and clinically investigated. Via whole-exome sequencing and Sanger sequencing assays in selected family members, a heterozygous variation in the SMAD4 gene (coding for a transcription factor essential for cardiovascular morphogenesis), NM_005359.6: c.285T > A; p.(Tyr95*), was identified to be in co-segregation with autosomal-dominant CHD in the entire family. The truncating variation was not observed in 460 unrelated non-CHD volunteers employed as control subjects. Functional exploration by dual-reporter gene analysis demonstrated that Tyr95*-mutant SMAD4 lost transactivation of its two key downstream target genes NKX2.5 and ID2, which were both implicated with CHD. Additionally, the variation nullified the synergistic transcriptional activation between SMAD4 and GATA4, another transcription factor involved in CHD. These data strongly indicate SMAD4 may be associated with CHD and shed more light on the molecular pathogenesis underlying CHD, implying potential implications for antenatal precise prevention and prognostic risk stratification of the patients affected with CHD.
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Affiliation(s)
- Yin Wang
- Department of Cardiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Ying-Jia Xu
- Department of Cardiology, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200240, China
| | - Chen-Xi Yang
- Department of Cardiology, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200240, China
| | - Ri-Tai Huang
- Department of Cardiovascular Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Song Xue
- Department of Cardiovascular Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Fang Yuan
- Department of Cardiac Intensive Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, 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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3
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Ito J, Minemura T, Wälchli S, Niimi T, Fujihara Y, Kuroda S, Takimoto K, Maturana AD. Id2 Represses Aldosterone-Stimulated Cardiac T-Type Calcium Channels Expression. Int J Mol Sci 2021; 22:3561. [PMID: 33808082 PMCID: PMC8037527 DOI: 10.3390/ijms22073561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/16/2022] Open
Abstract
Aldosterone excess is a cardiovascular risk factor. Aldosterone can directly stimulate an electrical remodeling of cardiomyocytes leading to cardiac arrhythmia and hypertrophy. L-type and T-type voltage-gated calcium (Ca2+) channels expression are increased by aldosterone in cardiomyocytes. To further understand the regulation of these channels expression, we studied the role of a transcriptional repressor, the inhibitor of differentiation/DNA binding protein 2 (Id2). We found that aldosterone inhibited the expression of Id2 in neonatal rat cardiomyocytes and in the heart of adult mice. When Id2 was overexpressed in cardiomyocytes, we observed a reduction in the spontaneous action potentials rate and an arrest in aldosterone-stimulated rate increase. Accordingly, Id2 siRNA knockdown increased this rate. We also observed that CaV1.2 (L-type Ca2+ channel) or CaV3.1, and CaV3.2 (T-type Ca2+ channels) mRNA expression levels and Ca2+ currents were affected by Id2 presence. These observations were further corroborated in a heart specific Id2- transgenic mice. Taken together, our results suggest that Id2 functions as a transcriptional repressor for L- and T-type Ca2+ channels, particularly CaV3.1, in cardiomyocytes and its expression is controlled by aldosterone. We propose that Id2 might contributes to a protective mechanism in cardiomyocytes preventing the presence of channels associated with a pathological state.
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Affiliation(s)
- Jumpei Ito
- Laboratory of Animal Cell Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Aichi 464-8601, Japan; (J.I.); (T.M.); (T.N.)
| | - Tomomi Minemura
- Laboratory of Animal Cell Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Aichi 464-8601, Japan; (J.I.); (T.M.); (T.N.)
| | - Sébastien Wälchli
- Translational Research Unit, Section for Cellular Therapy, Oslo University Hospital, 0379 Oslo, Norway;
| | - Tomoaki Niimi
- Laboratory of Animal Cell Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Aichi 464-8601, Japan; (J.I.); (T.M.); (T.N.)
| | - Yoshitaka Fujihara
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka 565-0871, Japan;
| | - Shun’ichi Kuroda
- Institute for Scientific and Industrial Researches, Osaka University, Osaka 567-0047, Japan;
| | - Koichi Takimoto
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka 940-2188, Japan;
| | - Andrés D. Maturana
- Laboratory of Animal Cell Physiology, Graduate School of Bioagricultural Sciences, Nagoya University, Aichi 464-8601, Japan; (J.I.); (T.M.); (T.N.)
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Oh JH, Tannenbaum A, Deasy JO. Identification of biological correlates associated with respiratory failure in COVID-19. BMC Med Genomics 2020; 13:186. [PMID: 33308225 PMCID: PMC7729705 DOI: 10.1186/s12920-020-00839-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 11/29/2020] [Indexed: 12/11/2022] Open
Abstract
Background Coronavirus disease 2019 (COVID-19) is a global public health concern. Recently, a genome-wide association study (GWAS) was performed with participants recruited from Italy and Spain by an international consortium group.
Methods Summary GWAS statistics for 1610 patients with COVID-19 respiratory failure and 2205 controls were downloaded. In the current study, we analyzed the summary statistics with the information of loci and p-values for 8,582,968 single-nucleotide polymorphisms (SNPs), using gene ontology analysis to determine the top biological processes implicated in respiratory failure in COVID-19 patients. Results We considered the top 708 SNPs, using a p-value cutoff of 5 × 10− 5, which were mapped to the nearest genes, leading to 144 unique genes. The list of genes was input into a curated database to conduct gene ontology and protein-protein interaction (PPI) analyses. The top ranked biological processes were wound healing, epithelial structure maintenance, muscle system processes, and cardiac-relevant biological processes with a false discovery rate < 0.05. In the PPI analysis, the largest connected network consisted of 8 genes. Through a literature search, 7 out of the 8 gene products were found to be implicated in both pulmonary and cardiac diseases. Conclusion Gene ontology and PPI analyses identified cardio-pulmonary processes that may partially explain the risk of respiratory failure in COVID-19 patients.
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Affiliation(s)
- Jung Hun Oh
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Allen Tannenbaum
- Departments of Computer Science and Applied Mathematics & Statistics, Stony Brook University, Stony Brook, NY, USA
| | - Joseph O Deasy
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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5
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Wang H, Liu Y, Han S, Zi Y, Zhang Y, Kong R, Liu Z, Cai Z, Zhong C, Liu W, Li L, Jiang L. Nkx2-5 Regulates the Proliferation and Migration of H9c2 Cells. Med Sci Monit 2020; 26:e925388. [PMID: 32780729 PMCID: PMC7441744 DOI: 10.12659/msm.925388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background The protein NKX2–5 affects mammalian heart development. In mice, the disruption of Nkx2–5 has been associated with arrhythmias, abnormal myocardial contraction, abnormal cardiac morphogenesis, and death. However, the details of the mechanisms are unclear. This study was designed to investigate them. Material/Methods Rat cardiomyocytes from the H9c2 cell line were used in our study. First, we knocked down Nkx2–5 in the H9c2 cells and then validated consequent changes in cell proliferation and migration. We then used RNA sequencing to determine the changes in transcripts. Finally, we validated these results by quantitative reverse transcription-polymerase chain reaction. Results We confirmed that Nkx2–5 regulates the proliferation and migration of H9c2 cells. In our experiments, Nkx2–5 regulated the expression of genes related to proliferation, migration, heart development, and disease. Based on bioinformatics analysis, knockdown of Nkx2–5 caused differential expression of genes involved in cardiac development, calcium ion-related biological activity, the transforming growth factor (TGF)-β signaling pathway, pathways related to heart diseases, the MAPK signaling pathway, and other biological processes and signaling pathways. Conclusions Nkx2–5 may regulate proliferation and migration of the H9c2 cells through the genes Tgfb-2, Bmp10, Id2, Wt1, Hey1, and Cacna1g; rno-miR-1-3p; the TGF-β signaling pathway; the MAPK signaling pathway; as well as other genes and pathways.
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Affiliation(s)
- Hongshu Wang
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Yong Liu
- Fuwai Yunnan Cardiovascular Hospital, Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Shen Han
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Yunfeng Zi
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Yayong Zhang
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Ruize Kong
- The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
| | - Zu Liu
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Zhibin Cai
- Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Chongbin Zhong
- Department of Thoracic Surgery, The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong, Yunnan, China (mainland)
| | - Wei Liu
- Department II of Hepatobillary Surgery, The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong, Yunnan, China (mainland)
| | - Lifeng Li
- Department of Thoracic Surgery, The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong, Yunnan, China (mainland)
| | - Lihong Jiang
- The First People's Hospital of Yunnan Province, Kunming, Yunnan, China (mainland)
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6
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Yin L, Liu MX, Li W, Wang FY, Tang YH, Huang CX. Over-Expression of Inhibitor of Differentiation 2 Attenuates Post-Infarct Cardiac Fibrosis Through Inhibition of TGF-β1/Smad3/HIF-1α/IL-11 Signaling Pathway. Front Pharmacol 2019; 10:1349. [PMID: 31803053 PMCID: PMC6876274 DOI: 10.3389/fphar.2019.01349] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 10/24/2019] [Indexed: 12/15/2022] Open
Abstract
Background: Cardiac fibrosis after myocardial infarction mainly causes cardiac diastolic and systolic dysfunction, which results in fatal arrhythmias or even sudden death. Id2, a transcriptional repressor, has been shown to play an important role in the development of fibrosis in various organs, but its effects on cardiac fibrosis remain unclear. This study aimed to explore the effects of Id2 on cardiac fibrosis after myocardial infarction and its possible mechanisms. Methods: This study was performed in four experimental groups: control group, treatment group (including TGF-β1, hypoxia or MI), treatment+GFP group and treatment+Id2 group. In vitro anoxic and fibrotic models were established by subjecting CFs or NRVMs to a three-gas incubator or TGF-β1, respectively. An animal myocardial infarction model was established by ligating of the left anterior descending coronary artery followed by directly injecting of Id2 adenovirus into the myocardial infarct’s marginal zone. Results: The results showed that Id2 significantly improved cardiac EF and attenuated cardiac hypertrophy. The mRNA and protein levels of α-SMA, Collagen I, Collagen III, MMP2 and TIMP1 were higher in treatment+Id2 group than those in treatment group as well as in treatment+GFP group both in vivo and in vitro. Immunofluorescence revealed that both α-SMA and vimentin were co-expressed in the treatment group and GFP group, but the co-expression were not detected in the control group and Id2 group. Additionally, our findings illustrated that Id2 had protective effects demonstrated by its ability to inhibit the TGF-β1/Smad3/HIF-1α/IL-11 signaling pathways. Besides, over-expression of Id2 reduced cardiomyocytes apoptosis. Conclusion: In conclusion, this study demonstrated that over-expression of Id2 preserved cardiac function and ameliorated adverse cardiac remodeling, which might be a promising treatment target for cardiac fibrosis and apoptosis.
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Affiliation(s)
- Lin Yin
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Ming-Xin Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Wei Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Feng-Yuan Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yan-Hong Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Cong-Xin Huang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
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7
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Liu Y, Lu P, Wang Y, Morrow BE, Zhou B, Zheng D. Spatiotemporal Gene Coexpression and Regulation in Mouse Cardiomyocytes of Early Cardiac Morphogenesis. J Am Heart Assoc 2019; 8:e012941. [PMID: 31322043 PMCID: PMC6761639 DOI: 10.1161/jaha.119.012941] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 06/06/2019] [Indexed: 12/18/2022]
Abstract
Background Heart tube looping to form a 4-chambered heart is a critical stage of embryonic heart development, but the gene drivers and their regulatory targets have not been extensively characterized at the cell-type level. Methods and Results To study the interaction of signaling pathways, transcription factors (TFs), and genetic networks in the process, we constructed gene co-expression networks and identified gene modules highly activated in individual cardiomyocytes at multiple anatomical regions and developmental stages using previously published single-cell RNA-seq data. Function analyses of the modules uncovered major pathways important for spatiotemporal cardiomyocyte differentiation. Interestingly, about half of the pathways were highly active in cardiomyocytes at the outflow tract (OFT) and atrioventricular canal, including well-known pathways for cardiac development and many newly identified ones. We predicted that these OFT-atrioventricular canal pathways were regulated by a large number of TFs actively expressed at the OFT-atrioventricular canal cardiomyocytes, with the prediction supported by motif enrichment analysis, including 10 TFs that have not been previously associated with cardiac development (eg, Etv5, Rbpms, and Baz2b). Furthermore, we found that TF targets in the OFT-atrioventricular canal modules were most significantly enriched with genes associated with mouse heart developmental abnormalities and human congenital heart defects, in comparison with TF targets in other modules, consistent with the critical developmental roles of OFT. Conclusions By analyzing gene co-expression at single cardiomyocytes, our systematic study has uncovered many known and additional new important TFs and their regulated molecular signaling pathways that are spatiotemporally active during heart looping.
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Affiliation(s)
- Yang Liu
- Department of GeneticsAlbert Einstein College of MedicineBronxNY
| | - Pengfei Lu
- Department of GeneticsAlbert Einstein College of MedicineBronxNY
| | - Yidong Wang
- Department of GeneticsAlbert Einstein College of MedicineBronxNY
| | - Bernice E. Morrow
- Department of GeneticsAlbert Einstein College of MedicineBronxNY
- Department of Ob/Gyn and PediatricsAlbert Einstein College of MedicineBronxNY
| | - Bin Zhou
- Department of GeneticsAlbert Einstein College of MedicineBronxNY
- Department of Ob/Gyn and PediatricsAlbert Einstein College of MedicineBronxNY
- Department of MedicineAlbert Einstein College of MedicineBronxNY
| | - Deyou Zheng
- Department of GeneticsAlbert Einstein College of MedicineBronxNY
- Department of NeurologyAlbert Einstein College of MedicineBronxNY
- Department of NeuroscienceAlbert Einstein College of MedicineBronxNY
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Goodyer W, Wu SM. Fates Aligned: Origins and Mechanisms of Ventricular Conduction System and Ventricular Wall Development. Pediatr Cardiol 2018; 39:1090-1098. [PMID: 29594502 PMCID: PMC6093793 DOI: 10.1007/s00246-018-1869-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/14/2018] [Indexed: 12/19/2022]
Abstract
The cardiac conduction system is a network of distinct cell types necessary for the coordinated contraction of the cardiac chambers. The distal portion, known as the ventricular conduction system, allows for the rapid transmission of impulses from the atrio-ventricular node to the ventricular myocardium and plays a central role in cardiac function as well as disease when perturbed. Notably, its patterning during embryogenesis is intimately linked to that of ventricular wall formation, including trabeculation and compaction. Here, we review our current understanding of the underlying mechanisms responsible for the development and maturation of these interdependent processes.
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Affiliation(s)
- William Goodyer
- Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA,Division of Pediatric Cardiology, Department of Pediatrics, Lucille Packard Children’s Hospital, Stanford, CA 94305, USA
| | - Sean M. Wu
- Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA,Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA,Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA,Correspondence: Sean M. Wu, M.D. PhD., Lokey Stem Cell Building, Room G1120A, 265 Campus Drive, Stanford, CA 94305, Phone No. 650-724-4498, Fax No. 650-726-4689,
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9
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Yan L, Zhang X, Guo Y, Li Y, Liu Z. No association between Id2 gene methylation and tetralogy of Fallot: a case-control study in China children. BIOTECHNOL BIOTEC EQ 2018. [DOI: 10.1080/13102818.2018.1454849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Affiliation(s)
- Liru Yan
- Department of Carders Outpatient Service, Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, PR China
| | - Xuna Zhang
- First Neurology Ward, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, PR China
| | - Yujie Guo
- Department of Medical Section, Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, PR China
| | - Yuanyuan Li
- Center For Endemic Disease Control, Chinese Center For Disease Control and Prevention, Harbin Medical University; Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province & Ministry of Health, Harbin, Heilongjiang, PR China
| | - Zonghong Liu
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, PR China
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Coelho Molck M, Simioni M, Vieira TP, Sgardioli IC, Monteiro FP, Souza J, Fett‐Conte AC, Félix TM, Monlléo IL, Gil‐da‐Silva‐Lopes VL. Genomic imbalances in syndromic congenital heart disease. JORNAL DE PEDIATRIA (VERSÃO EM PORTUGUÊS) 2017. [DOI: 10.1016/j.jpedp.2017.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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11
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Molck MC, Simioni M, Paiva Vieira T, Sgardioli IC, Paoli Monteiro F, Souza J, Fett-Conte AC, Félix TM, Lopes Monlléo I, Gil-da-Silva-Lopes VL. Genomic imbalances in syndromic congenital heart disease. J Pediatr (Rio J) 2017; 93:497-507. [PMID: 28336264 DOI: 10.1016/j.jped.2016.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 11/21/2016] [Accepted: 11/21/2016] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE To identify pathogenic genomic imbalances in patients presenting congenital heart disease (CHD) with extra cardiac anomalies and exclusion of 22q11.2 deletion syndrome (22q11.2 DS). METHODS 78 patients negative for the 22q11.2 deletion, previously screened by fluorescence in situ hybridization (FISH) and/or multiplex ligation probe amplification (MLPA) were tested by chromosomal microarray analysis (CMA). RESULTS Clinically significant copy number variations (CNVs ≥300kb) were identified in 10% (8/78) of cases. In addition, potentially relevant CNVs were detected in two cases (993kb duplication in 15q21.1 and 706kb duplication in 2p22.3). Genes inside the CNV regions found in this study, such as IRX4, BMPR1A, SORBS2, ID2, ROCK2, E2F6, GATA4, SOX7, SEMAD6D, FBN1, and LTPB1 are known to participate in cardiac development and could be candidate genes for CHD. CONCLUSION These data showed that patients presenting CHD with extra cardiac anomalies and exclusion of 22q11.2 DS should be investigated by CMA. The present study emphasizes the possible role of CNVs in CHD.
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Affiliation(s)
- Miriam Coelho Molck
- Universidade Estadual de Campinas (UNICAMP), Departamento de Genética Médica, Campinas, SP, Brazil
| | - Milena Simioni
- Universidade Estadual de Campinas (UNICAMP), Departamento de Genética Médica, Campinas, SP, Brazil
| | - Társis Paiva Vieira
- Universidade Estadual de Campinas (UNICAMP), Departamento de Genética Médica, Campinas, SP, Brazil
| | | | - Fabíola Paoli Monteiro
- Universidade Estadual de Campinas (UNICAMP), Departamento de Genética Médica, Campinas, SP, Brazil
| | - Josiane Souza
- Centro de Atendimento Integral ao Fissurado Lábio Palatal (CAIF), Curitiba, PR, Brazil
| | - Agnes Cristina Fett-Conte
- Faculdade de Medicina de São José do Rio Preto, Departamento de Biologia Molecular, São José do Rio Preto, SP, Brazil
| | - Têmis Maria Félix
- Hospital de Clínicas de Porto Alegre, Serviço de Genética Médica, Porto Alegre, RS, Brazil
| | - Isabella Lopes Monlléo
- Universidade Federal de Alagoas (UFAL), Hospital Universitário, Faculdade de Medicina, Serviço de Genética Clínica, Maceió, AL, Brazil
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12
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Regional differences in WT-1 and Tcf21 expression during ventricular development: implications for myocardial compaction. PLoS One 2015; 10:e0136025. [PMID: 26390289 PMCID: PMC4577115 DOI: 10.1371/journal.pone.0136025] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 07/29/2015] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Morphological and functional differences of the right and left ventricle are apparent in the adult human heart. A differential contribution of cardiac fibroblasts and smooth muscle cells (populations of epicardium-derived cells) to each ventricle may account for part of the morphological-functional disparity. Here we studied the relation between epicardial derivatives and the development of compact ventricular myocardium. RESULTS Wildtype and Wt1CreERT2/+ reporter mice were used to study WT-1 expressing cells, and Tcf21lacZ/+ reporter mice and PDGFRα-/-;Tcf21LacZ/+ mice to study the formation of the cardiac fibroblast population. After covering the heart, intramyocardial WT-1+ cells were first observed at the inner curvature, the right ventricular postero-lateral wall and left ventricular apical wall. Later, WT-1+ cells were present in the walls of both ventricles, but significantly more pronounced in the left ventricle. Tcf21-LacZ + cells followed the same distribution pattern as WT-1+ cells but at later stages, indicating a timing difference between these cell populations. Within the right ventricle, WT-1+ and Tcf21-lacZ+ cell distribution was more pronounced in the posterior inlet part. A gradual increase in myocardial wall thickness was observed early in the left ventricle and at later stages in the right ventricle. PDGFRα-/-;Tcf21LacZ/+ mice showed deficient epicardium, diminished number of Tcf21-LacZ + cells and reduced ventricular compaction. CONCLUSIONS During normal heart development, spatio-temporal differences in contribution of WT-1 and Tcf21-LacZ + cells to right versus left ventricular myocardium occur parallel to myocardial thickening. These findings may relate to lateralized differences in ventricular (patho)morphology in humans.
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Calkoen EE, Vicente-Steijn R, Hahurij ND, van Munsteren CJ, Roest AAW, DeRuiter MC, Steendijk P, Schalij MJ, Gittenberger-de Groot AC, Blom NA, Jongbloed MRM. Abnormal sinoatrial node development resulting from disturbed vascular endothelial growth factor signaling. Int J Cardiol 2014; 183:249-57. [PMID: 25700200 DOI: 10.1016/j.ijcard.2014.12.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/25/2014] [Accepted: 12/01/2014] [Indexed: 11/17/2022]
Abstract
BACKGROUND Sinus node dysfunction is frequently observed in patients with congenital heart disease (CHD). Variants in the Vascular Endothelial Growth Factor-A (VEGF) pathway are associated with CHD. In Vegf(120/120) mice, over-expressing VEGF120, a reduced sinoatrial node (SAN) volume was suggested. Aim of the study is to assess the effect of VEGF over-expression on SAN development and function. METHODS Heart rate was measured in Vegf(120/120) and wildtype (WT) embryos during high frequency ultrasound studies at embryonic day (E)12.5, 14.5 and 17.5 and by optical mapping at E12.5. Morphology was studied with several antibodies. SAN volume estimations were performed, and qualitative-PCR was used to quantify expression of genes in SAN tissues of WT and Vegf(120/120) embryos. RESULTS Heart rate was reduced in Vegf(120/120) compared with WT embryos during embryonic echocardiography (52 ± 17 versus 125 ± 31 beats per minute (bpm) at E12.5, p<0.001; 123 ± 37 vs 160 ± 29 bmp at E14.5, p=0.024; and 177 ± 30 vs 217 ± 34 bmp, at E17.5 p=0.017) and optical mapping (81 ± 5 vs 116 ± 8 bpm at E12.5; p=0.003). The SAN of mutant embryos was smaller and more vascularized, and showed increased expression of the fast conducting gap junction protein, Connexin43. CONCLUSIONS Over-expression of VEGF120 results in reduced heart rate and a smaller, less compact and hypervascularized SAN with increased expression of Connexin43. This indicates that VEGF is necessary for normal SAN development and function.
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Affiliation(s)
- Emmeline E Calkoen
- Department of Paediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands; Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands
| | - Rebecca Vicente-Steijn
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands
| | - Nathan D Hahurij
- Department of Paediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands; Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands
| | - Conny J van Munsteren
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands
| | - Arno A W Roest
- Department of Paediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Marco C DeRuiter
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands
| | - Paul Steendijk
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Martin J Schalij
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Adriana C Gittenberger-de Groot
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands; Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Nico A Blom
- Department of Paediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Monique R M Jongbloed
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands; Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands.
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Wu SP, Cheng CM, Lanz RB, Wang T, Respress JL, Ather S, Chen W, Tsai SJ, Wehrens XHT, Tsai MJ, Tsai SY. Atrial identity is determined by a COUP-TFII regulatory network. Dev Cell 2013; 25:417-26. [PMID: 23725765 DOI: 10.1016/j.devcel.2013.04.017] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 04/11/2013] [Accepted: 04/29/2013] [Indexed: 11/29/2022]
Abstract
Atria and ventricles exhibit distinct molecular profiles that produce structural and functional differences between the two cardiac compartments. However, the factors that determine these differences remain largely undefined. Cardiomyocyte-specific COUP-TFII ablation produces ventricularized atria that exhibit ventricle-like action potentials, increased cardiomyocyte size, and development of extensive T tubules. Changes in atrial characteristics are accompanied by alterations of 2,584 genes, of which 81% were differentially expressed between atria and ventricles, suggesting that a major function of myocardial COUP-TFII is to determine atrial identity. Chromatin immunoprecipitation assays using E13.5 atria identified classic atrial-ventricular identity genes Tbx5, Hey2, Irx4, MLC2v, MLC2a, and MLC1a, among many other cardiac genes, as potential COUP-TFII direct targets. Collectively, our results reveal that COUP-TFII confers atrial identity through direct binding and by modulating expression of a broad spectrum of genes that have an impact on atrial development and function.
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Affiliation(s)
- San-pin Wu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
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Sharma P, Knowell AE, Chinaranagari S, Komaragiri S, Nagappan P, Patel D, Havrda MC, Chaudhary J. Id4 deficiency attenuates prostate development and promotes PIN-like lesions by regulating androgen receptor activity and expression of NKX3.1 and PTEN. Mol Cancer 2013; 12:67. [PMID: 23786676 PMCID: PMC3694449 DOI: 10.1186/1476-4598-12-67] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 06/12/2013] [Indexed: 12/30/2022] Open
Abstract
Background Inhibitor of differentiation 4 (Id4), a member of the helix-loop-helix family of transcriptional regulators has emerged as a tumor suppressor in prostate cancer. Id4 is expressed in the normal prostate where its expression is also regulated by androgens. In this study we investigated the effect of loss of Id4 (Id4-/-) on adult prostate morphology. Methods Histological analysis was performed on prostates from 6-8 weeks old Id4-/-, Id4+/- and Id4+/+ mice. Expression of Id1, Sox9, Myc, androgen receptor, Akt, p-Akt, Pten and Nkx3.1 was investigated by immunohistochemistry. Androgen receptor binding on NKX3.1 promoter was studied by chromatin immuno-precipitation. Id4 was either over-expressed or silenced in prostate cancer cell lines DU145 and LNCaP respectively followed by analysis of PTEN, NKX3.1 and Sox9 expression. Results Id4-/- mice had smaller prostates with fewer tubules, smaller tubule diameters and subtle mPIN like lesions. Levels of androgen receptor were similar between wild type and Id4-/- prostate. Decreased NKX3.1 expression was in part due to decreased androgen receptor binding on NKX3.1 promoter in Id4-/- mice. The increase in the expression of Myc, Sox9, Id1, Ki67 and decrease in the expression of PTEN, Akt and phospho-AKT was associated with subtle mPIN like lesions in Id4-/- prostates. Finally, prostate cancer cell line models in which Id4 was either silenced or over-expressed confirmed that Id4 regulates NKX3.1, Sox9 and PTEN. Conclusions Our results suggest that loss of Id4 attenuates normal prostate development and promotes hyperplasia/dysplasia with subtle mPIN like lesions characterized by gain of Myc and Id1 and loss of Nkx3.1 and Pten expression. One of the mechanisms by which Id4 may regulate normal prostate development is through regulating androgen receptor binding to respective response elements such as those on NKX3.1 promoter. In spite of these complex alterations, large neoplastic lesions in Id4-/- prostates were not observed suggesting the possibility of mechanisms/pathways such as loss of Akt that could restrain the formation of significant pre-cancerous lesions.
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Normal and abnormal development of the cardiac conduction system; implications for conduction and rhythm disorders in the child and adult. Differentiation 2012; 84:131-48. [DOI: 10.1016/j.diff.2012.04.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Accepted: 04/16/2012] [Indexed: 11/20/2022]
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17
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Gittenberger-de Groot AC, Winter EM, Bartelings MM, Goumans MJ, DeRuiter MC, Poelmann RE. The arterial and cardiac epicardium in development, disease and repair. Differentiation 2012; 84:41-53. [PMID: 22652098 DOI: 10.1016/j.diff.2012.05.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 04/27/2012] [Accepted: 05/02/2012] [Indexed: 02/01/2023]
Abstract
The importance of the epicardium covering the heart and the intrapericardial part of the great arteries has reached a new summit. It has evolved as a major cellular component with impact both in development, disease and more recently also repair potential. The role of the epicardium in development, its differentiation from a proepicardial organ at the venous pole (vPEO) and the differentiation capacities of the vPEO initiating cardiac epicardium (cEP) into epicardium derived cells (EPDCs) have been extensively described in recent reviews on growth and transcription factor pathways. In short, the epicardium is the source of the interstitial, the annulus fibrosus and the adventitial fibroblasts, and differentiates into the coronary arterial smooth muscle cells. Furthermore, EPDCs induce growth of the compact myocardium and differentiation of the Purkinje fibers. This review includes an arterial pole located PEO (aPEO) that provides the epicardium covering the intrapericardial great vessels. In avian and mouse models disturbance of epicardial outgrowth and maturation leads to a broad spectrum of cardiac anomalies with main focus on non-compaction of the myocardium, deficient annulus fibrosis, valve malformations and coronary artery abnormalities. The discovery that in disease both arterial and cardiac epicardium can again differentiate into EPDCs and thus reactivate its embryonic program and potential has highly broadened the scope of research interest. This reactivation is seen after myocardial infarction and also in aneurysm formation of the ascending aorta. Use of EPDCs for cell therapy show their positive function in paracrine mediated repair processes which can be additive when combined with the cardiac progenitor stem cells that probably share the same embryonic origin with EPDCs. Research into the many cell-autonomous and cell-cell-based capacities of the adult epicardium will open up new realistic therapeutic avenues.
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Affiliation(s)
- Adriana C Gittenberger-de Groot
- Department of Cardiology, Leiden University Medical Center, Postal zone: S-5-24, P.O. Box 9600, 2300 RC Leiden, The Netherlands.
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