1
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Harrison J, Newland SA, Jiang W, Giakomidi D, Zhao X, Clement M, Masters L, Corovic A, Zhang X, Drago F, Ma M, Ozsvar Kozma M, Yasin F, Saady Y, Kothari H, Zhao TX, Shi GP, McNamara CA, Binder CJ, Sage AP, Tarkin JM, Mallat Z, Nus M. Marginal zone B cells produce 'natural' atheroprotective IgM antibodies in a T cell-dependent manner. Cardiovasc Res 2024; 120:318-328. [PMID: 38381113 PMCID: PMC10939463 DOI: 10.1093/cvr/cvae027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/10/2023] [Accepted: 12/12/2023] [Indexed: 02/22/2024] Open
Abstract
AIMS The adaptive immune response plays an important role in atherosclerosis. In response to a high-fat/high-cholesterol (HF/HC) diet, marginal zone B (MZB) cells activate an atheroprotective programme by regulating the differentiation and accumulation of 'poorly differentiated' T follicular helper (Tfh) cells. On the other hand, Tfh cells activate the germinal centre response, which promotes atherosclerosis through the production of class-switched high-affinity antibodies. We therefore investigated the direct role of Tfh cells and the role of IL18 in Tfh differentiation in atherosclerosis. METHODS AND RESULTS We generated atherosclerotic mouse models with selective genetic deletion of Tfh cells, MZB cells, or IL18 signalling in Tfh cells. Surprisingly, mice lacking Tfh cells had increased atherosclerosis. Lack of Tfh not only reduced class-switched IgG antibodies against oxidation-specific epitopes (OSEs) but also reduced atheroprotective natural IgM-type anti-phosphorylcholine (PC) antibodies, despite no alteration of natural B1 cells. Moreover, the absence of Tfh cells was associated with an accumulation of MZB cells with substantially reduced ability to secrete antibodies. In the same manner, MZB cell deficiency in Ldlr-/- mice was associated with a significant decrease in atheroprotective IgM antibodies, including natural anti-PC IgM antibodies. In humans, we found a positive correlation between circulating MZB-like cells and anti-OSE IgM antibodies. Finally, we identified an important role for IL18 signalling in HF/HC diet-induced Tfh. CONCLUSION Our findings reveal a previously unsuspected role of MZB cells in regulating atheroprotective 'natural' IgM antibody production in a Tfh-dependent manner, which could have important pathophysiological and therapeutic implications.
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Affiliation(s)
- James Harrison
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Stephen A Newland
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Wei Jiang
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Despoina Giakomidi
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Xiaohui Zhao
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Marc Clement
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
- Laboratory for Vascular Translational Sciences (LVTS), Université de Paris, INSERM U1148, Paris, France
| | - Leanne Masters
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Andrej Corovic
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Xian Zhang
- Department of Medicine, Brigham and Woman’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Fabrizio Drago
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Marcella Ma
- Wellcome-MRC Institute of Metabolic Science and Medical Research Council Metabolic Diseases Unit, University of Cambridge, UK
| | - Maria Ozsvar Kozma
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Froher Yasin
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Yuta Saady
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Hema Kothari
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Tian X Zhao
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Guo-Ping Shi
- Department of Medicine, Brigham and Woman’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Coleen A McNamara
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Christoph J Binder
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Andrew P Sage
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Jason M Tarkin
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - Ziad Mallat
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
- PARCC Inserm U970, Universite de Paris, Paris, France
| | - Meritxell Nus
- Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
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2
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Cooper F, Souilhol C, Haston S, Gray S, Boswell K, Gogolou A, Frith TJR, Stavish D, James BM, Bose D, Kim Dale J, Tsakiridis A. Notch signalling influences cell fate decisions and HOX gene induction in axial progenitors. Development 2024; 151:dev202098. [PMID: 38223992 PMCID: PMC10911136 DOI: 10.1242/dev.202098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 12/20/2023] [Indexed: 01/16/2024]
Abstract
The generation of the post-cranial embryonic body relies on the coordinated production of spinal cord neurectoderm and presomitic mesoderm cells from neuromesodermal progenitors (NMPs). This process is orchestrated by pro-neural and pro-mesodermal transcription factors that are co-expressed in NMPs together with Hox genes, which are essential for axial allocation of NMP derivatives. NMPs reside in a posterior growth region, which is marked by the expression of Wnt, FGF and Notch signalling components. Although the importance of Wnt and FGF in influencing the induction and differentiation of NMPs is well established, the precise role of Notch remains unclear. Here, we show that the Wnt/FGF-driven induction of NMPs from human embryonic stem cells (hESCs) relies on Notch signalling. Using hESC-derived NMPs and chick embryo grafting, we demonstrate that Notch directs a pro-mesodermal character at the expense of neural fate. We show that Notch also contributes to activation of HOX gene expression in human NMPs, partly in a non-cell-autonomous manner. Finally, we provide evidence that Notch exerts its effects via the establishment of a negative-feedback loop with FGF signalling.
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Affiliation(s)
- Fay Cooper
- School of Biosciences, The University of Sheffield, Sheffield S10 2TN, UK
- Neuroscience Institute, The University of Sheffield, Sheffield S10 2TN, UK
| | - Celine Souilhol
- School of Biosciences, The University of Sheffield, Sheffield S10 2TN, UK
- Neuroscience Institute, The University of Sheffield, Sheffield S10 2TN, UK
- Biomolecular Sciences Research Centre, Department of Biosciences and Chemistry, Sheffield Hallam University, Sheffield S1 1WB, UK
| | - Scott Haston
- Developmental Biology and Cancer, Birth Defects Research Centre, UCL GOS Institute of Child Health, London WC1N 1EH, UK
- Division of Cell and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 4HN, UK
| | - Shona Gray
- Division of Cell and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 4HN, UK
| | - Katy Boswell
- School of Biosciences, The University of Sheffield, Sheffield S10 2TN, UK
- Neuroscience Institute, The University of Sheffield, Sheffield S10 2TN, UK
| | - Antigoni Gogolou
- School of Biosciences, The University of Sheffield, Sheffield S10 2TN, UK
- Neuroscience Institute, The University of Sheffield, Sheffield S10 2TN, UK
| | - Thomas J. R. Frith
- School of Biosciences, The University of Sheffield, Sheffield S10 2TN, UK
- Neuroscience Institute, The University of Sheffield, Sheffield S10 2TN, UK
| | - Dylan Stavish
- School of Biosciences, The University of Sheffield, Sheffield S10 2TN, UK
- Neuroscience Institute, The University of Sheffield, Sheffield S10 2TN, UK
| | - Bethany M. James
- School of Biosciences, The University of Sheffield, Sheffield S10 2TN, UK
- Neuroscience Institute, The University of Sheffield, Sheffield S10 2TN, UK
| | - Daniel Bose
- School of Biosciences, The University of Sheffield, Sheffield S10 2TN, UK
- Neuroscience Institute, The University of Sheffield, Sheffield S10 2TN, UK
| | - Jacqueline Kim Dale
- Division of Cell and Developmental Biology, School of Life Sciences, University of Dundee, Dundee DD1 4HN, UK
| | - Anestis Tsakiridis
- School of Biosciences, The University of Sheffield, Sheffield S10 2TN, UK
- Neuroscience Institute, The University of Sheffield, Sheffield S10 2TN, UK
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3
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Zhang H, Rui M, Ma Z, Gong S, Zhang S, Zhou Q, Gan C, Gong W, Wang S. Golgi-to-ER retrograde transport prevents premature differentiation of Drosophila type II neuroblasts via Notch-signal-sending daughter cells. iScience 2024; 27:108545. [PMID: 38213621 PMCID: PMC10783626 DOI: 10.1016/j.isci.2023.108545] [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: 06/26/2023] [Revised: 09/18/2023] [Accepted: 11/20/2023] [Indexed: 01/13/2024] Open
Abstract
Stem cells are heterogeneous to generate diverse differentiated cell types required for organogenesis; however, the underlying mechanisms that differently maintain these heterogeneous stem cells are not well understood. In this study, we identify that Golgi-to-endoplasmic reticulum (ER) retrograde transport specifically maintains type II neuroblasts (NBs) through the Notch signaling. We reveal that intermediate neural progenitors (INPs), immediate daughter cells of type II NBs, provide Delta and function as the NB niche. The Delta used by INPs is mainly produced by NBs and asymmetrically distributed to INPs. Blocking retrograde transport leads to a decrease in INP number, which reduces Notch activity and results in the premature differentiation of type II NBs. Furthermore, the reduction of Delta could suppress tumor formation caused by type II NBs. Our results highlight the crosstalk between Golgi-to-ER retrograde transport, Notch signaling, stem cell niche, and fusion as an essential step in maintaining the self-renewal of type II NB lineage.
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Affiliation(s)
- Huanhuan Zhang
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing 210096, China
| | - Menglong Rui
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing 210096, China
| | - Zhixin Ma
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing 210096, China
| | - Sifan Gong
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing 210096, China
| | - Shuliu Zhang
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing 210096, China
| | - Qingxia Zhou
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing 210096, China
| | - Congfeng Gan
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing 210096, China
| | - Wenting Gong
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing 210096, China
| | - Su Wang
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, Nanjing 210096, China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226019, China
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4
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Lozovska A, Korovesi AG, Duarte P, Casaca A, Assunção T, Mallo M. The control of transitions along the main body axis. Curr Top Dev Biol 2023; 159:272-308. [PMID: 38729678 DOI: 10.1016/bs.ctdb.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
Although vertebrates display a large variety of forms and sizes, the mechanisms controlling the layout of the basic body plan are substantially conserved throughout the clade. Following gastrulation, head, trunk, and tail are sequentially generated through the continuous addition of tissue at the caudal embryonic end. Development of each of these major embryonic regions is regulated by a distinct genetic network. The transitions from head-to-trunk and from trunk-to-tail development thus involve major changes in regulatory mechanisms, requiring proper coordination to guarantee smooth progression of embryonic development. In this review, we will discuss the key cellular and embryological events associated with those transitions giving particular attention to their regulation, aiming to provide a cohesive outlook of this important component of vertebrate development.
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Affiliation(s)
| | | | - Patricia Duarte
- Instituto Gulbenkian de Ciência, Rua da Quinta Grande, Oeiras, Portugal
| | - Ana Casaca
- Instituto Gulbenkian de Ciência, Rua da Quinta Grande, Oeiras, Portugal
| | - Tereza Assunção
- Instituto Gulbenkian de Ciência, Rua da Quinta Grande, Oeiras, Portugal
| | - Moises Mallo
- Instituto Gulbenkian de Ciência, Rua da Quinta Grande, Oeiras, Portugal.
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5
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Tanwar A, Stanley P. Synergistic regulation of Notch signaling by different O-glycans promotes hematopoiesis. Front Immunol 2023; 14:1097332. [PMID: 37795096 PMCID: PMC10546201 DOI: 10.3389/fimmu.2023.1097332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 09/01/2023] [Indexed: 10/06/2023] Open
Abstract
Glycosylation of Notch receptors by O-fucose glycans regulates Notch ligand binding and Notch signaling during hematopoiesis. However, roles in hematopoiesis for other O-glycans that modify Notch receptors have not been determined. Here we show that the EGF domain specific GlcNAc transferase EOGT is required in mice for the optimal production of lymphoid and myeloid cells. The phenotype of Eogt null mice was largely cell-autonomous, and Notch target gene expression was reduced in T cell progenitors. Moreover, EOGT supported residual Notch signaling following conditional deletion of Pofut1 in hematopoietic stem cells (HSC). Eogt : Pofut1 double mutant HSC had more severe defects in bone marrow and in T and B cell development in thymus and spleen, compared to deletion of Pofut1 alone. The combined results show that EOGT and O-GlcNAc glycans are required for optimal hematopoiesis and T and B cell development, and that they act synergistically with POFUT1 and O-fucose glycans to promote Notch signaling in lymphoid and myeloid differentiation.
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Affiliation(s)
| | - Pamela Stanley
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, United States
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6
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Pan L, Mulaw MA, Gout J, Guo M, Zarrin H, Schwarz P, Baumann B, Seufferlein T, Wagner M, Oswald F. RBPJ Deficiency Sensitizes Pancreatic Acinar Cells to KRAS-Mediated Pancreatic Intraepithelial Neoplasia Initiation. Cell Mol Gastroenterol Hepatol 2023; 16:783-807. [PMID: 37543088 PMCID: PMC10520364 DOI: 10.1016/j.jcmgh.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND AND AIMS Development of pancreatic ductal adenocarcinoma (PDAC) is a multistep process intensively studied; however, precocious diagnosis and effective therapy still remain unsatisfactory. The role for Notch signaling in PDAC has been discussed controversially, as both cancer-promoting and cancer-antagonizing functions have been described. Thus, an improved understanding of the underlying molecular mechanisms is necessary. Here, we focused on RBPJ, the receiving transcription factor in the Notch pathway, examined its expression pattern in PDAC, and characterized its function in mouse models of pancreatic cancer development and in the regeneration process after acute pancreatitis. METHODS Conditional transgenic mouse models were used for functional analysis of RBPJ in the adult pancreas, initiation of PDAC precursor lesions, and pancreatic regeneration. Pancreata and primary acinar cells were tested for acinar-to-ductal metaplasia together with immunohistology and comprehensive transcriptional profiling by RNA sequencing. RESULTS We identified reduced RBPJ expression in a subset of human PDAC specimens. Ptf1α-CreERT-driven depletion of RBPJ in transgenic mice revealed that its function is dispensable for the homeostasis and maintenance of adult acinar cells. However, primary RBPJ-deficient acinar cells underwent acinar-to-ductal differentiation in ex vivo. Importantly, oncogenic KRAS expression in the context of RBPJ deficiency facilitated the development of pancreatic intraepithelial neoplasia lesions with massive fibrotic stroma formation. Interestingly, RNA-sequencing data revealed a transcriptional profile associated with the cytokine/chemokine and extracellular matrix changes. In addition, lack of RBPJ delays the course of acute pancreatitis and critically impairs it in the context of KRASG12D expression. CONCLUSIONS Our findings imply that downregulation of RBPJ in PDAC patients derepresses Notch targets and promotes KRAS-mediated pancreatic acinar cells transformation and desmoplasia development.
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Affiliation(s)
- Leiling Pan
- Department of Internal Medicine I, Center for Internal Medicine, University Medical Center Ulm, Ulm, Germany
| | - Medhanie A Mulaw
- Unit for Single-cell Genomics, Medical Faculty, Ulm University, Ulm, Germany
| | - Johann Gout
- Department of Internal Medicine I, Center for Internal Medicine, University Medical Center Ulm, Ulm, Germany
| | - Min Guo
- Department of Internal Medicine I, Center for Internal Medicine, University Medical Center Ulm, Ulm, Germany
| | - Hina Zarrin
- Department of Internal Medicine I, Center for Internal Medicine, University Medical Center Ulm, Ulm, Germany
| | - Peggy Schwarz
- Department of Internal Medicine I, Center for Internal Medicine, University Medical Center Ulm, Ulm, Germany
| | - Bernd Baumann
- Institute of Physiological Chemistry, Ulm University, Ulm, Germany
| | - Thomas Seufferlein
- Department of Internal Medicine I, Center for Internal Medicine, University Medical Center Ulm, Ulm, Germany
| | - Martin Wagner
- Department of Internal Medicine I, Center for Internal Medicine, University Medical Center Ulm, Ulm, Germany
| | - Franz Oswald
- Department of Internal Medicine I, Center for Internal Medicine, University Medical Center Ulm, Ulm, Germany.
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7
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Tessler I, Albuisson J, Piñeiro-Sabarís R, Verstraeten A, Kamber Kaya HE, Siguero-Álvarez M, Goudot G, MacGrogan D, Luyckx I, Shpitzen S, Levin G, Kelman G, Reshef N, Mananet H, Holdcraft J, Muehlschlegel JD, Peloso GM, Oppenheim O, Cheng C, Mazzella JM, Andelfinger G, Mital S, Eriksson P, Billon C, Heydarpour M, Dietz HC, Jeunemaitre X, Leitersdorf E, Sprinzak D, Blacklow SC, Body SC, Carmi S, Loeys B, de la Pompa JL, Gilon D, Messas E, Durst R. Novel Association of the NOTCH Pathway Regulator MIB1 Gene With the Development of Bicuspid Aortic Valve. JAMA Cardiol 2023; 8:721-731. [PMID: 37405741 PMCID: PMC10323766 DOI: 10.1001/jamacardio.2023.1469] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 04/21/2023] [Indexed: 07/06/2023]
Abstract
Importance Nonsyndromic bicuspid aortic valve (nsBAV) is the most common congenital heart valve malformation. BAV has a heritable component, yet only a few causative genes have been identified; understanding BAV genetics is a key point in developing personalized medicine. Objective To identify a new gene for nsBAV. Design, Setting, and Participants This was a comprehensive, multicenter, genetic association study based on candidate gene prioritization in a familial cohort followed by rare and common association studies in replication cohorts. Further validation was done using in vivo mice models. Study data were analyzed from October 2019 to October 2022. Three cohorts of patients with BAV were included in the study: (1) the discovery cohort was a large cohort of inherited cases from 29 pedigrees of French and Israeli origin; (2) the replication cohort 1 for rare variants included unrelated sporadic cases from various European ancestries; and (3) replication cohort 2 was a second validation cohort for common variants in unrelated sporadic cases from Europe and the US. Main Outcomes and Measures To identify a candidate gene for nsBAV through analysis of familial cases exome sequencing and gene prioritization tools. Replication cohort 1 was searched for rare and predicted deleterious variants and genetic association. Replication cohort 2 was used to investigate the association of common variants with BAV. Results A total of 938 patients with BAV were included in this study: 69 (7.4%) in the discovery cohort, 417 (44.5%) in replication cohort 1, and 452 (48.2%) in replication cohort 2. A novel human nsBAV gene, MINDBOMB1 homologue MIB1, was identified. MINDBOMB1 homologue (MIB1) is an E3-ubiquitin ligase essential for NOTCH-signal activation during heart development. In approximately 2% of nsBAV index cases from the discovery and replication 1 cohorts, rare MIB1 variants were detected, predicted to be damaging, and were significantly enriched compared with population-based controls (2% cases vs 0.9% controls; P = .03). In replication cohort 2, MIB1 risk haplotypes significantly associated with nsBAV were identified (permutation test, 1000 repeats; P = .02). Two genetically modified mice models carrying Mib1 variants identified in our cohort showed BAV on a NOTCH1-sensitized genetic background. Conclusions and Relevance This genetic association study identified the MIB1 gene as associated with nsBAV. This underscores the crucial role of the NOTCH pathway in the pathophysiology of BAV and its potential as a target for future diagnostic and therapeutic intervention.
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Affiliation(s)
- Idit Tessler
- Cardiology Department, Hadassah Medical Center, Jerusalem, Israel
- Sheba Medical Center, Ramat Gan, Israel
- Faculty of Medicine, the Hebrew University, Jerusalem, Israel
- Braun School of Public Health and Community Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Juliette Albuisson
- Genetics Department, Assistance Publique–Hȏpitaux de Paris, Hôpital Européen Georges Pompidou, National Referral Center for Rare Vascular Diseases, VASCERN MSA European Reference Center, Paris, France
- Université Paris Cité, INSERM, U970 PARCC, Paris, France
- Platform of Transfer in Cancer Biology, Georges François Leclerc Cancer –UNICANCER, Dijon, France
- Genomic and Immunotherapy Medical Institute, Dijon, France
| | - Rebeca Piñeiro-Sabarís
- Intercellular Signaling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
- Ciber de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
| | - Aline Verstraeten
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Edegem, Belgium
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Hatem Elif Kamber Kaya
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts
- Department of Cancer Biology, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Marcos Siguero-Álvarez
- Intercellular Signaling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
- Ciber de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
| | - Guillaume Goudot
- Université Paris Cité, INSERM, U970 PARCC, Paris, France
- Vascular Medicine Department, Assistance Publique–Hȏpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France
- French Research Consortium RHU STOP-AS, Rouen, France
| | - Donal MacGrogan
- Intercellular Signaling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
- Ciber de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
| | - Ilse Luyckx
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Edegem, Belgium
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Shoshana Shpitzen
- Cardiology Department, Hadassah Medical Center, Jerusalem, Israel
- Faculty of Medicine, the Hebrew University, Jerusalem, Israel
- Braun School of Public Health and Community Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Galina Levin
- Cardiology Department, Hadassah Medical Center, Jerusalem, Israel
- Faculty of Medicine, the Hebrew University, Jerusalem, Israel
- Braun School of Public Health and Community Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Guy Kelman
- Faculty of Medicine, the Hebrew University, Jerusalem, Israel
- The Jerusalem Center for Personalized Computational Medicine, Jerusalem, Israel
| | - Noga Reshef
- Faculty of Medicine, the Hebrew University, Jerusalem, Israel
- The Jerusalem Center for Personalized Computational Medicine, Jerusalem, Israel
| | - Hugo Mananet
- Platform of Transfer in Cancer Biology, Georges François Leclerc Cancer –UNICANCER, Dijon, France
- Genomic and Immunotherapy Medical Institute, Dijon, France
| | - Jake Holdcraft
- Department of Anesthesiology, Boston University School of Medicine, Boston, Massachusetts
| | | | - Gina M. Peloso
- Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts
| | - Olya Oppenheim
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Science, Tel Aviv University, Tel Aviv, Israel
| | - Charles Cheng
- Université Paris Cité, INSERM, U970 PARCC, Paris, France
- Vascular Medicine Department, Assistance Publique–Hȏpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France
- French Research Consortium RHU STOP-AS, Rouen, France
| | - Jean-Michael Mazzella
- Université Paris Cité, INSERM, U970 PARCC, Paris, France
- Vascular Medicine Department, Assistance Publique–Hȏpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France
| | - Gregor Andelfinger
- Cardiovascular Genetics, Department of Pediatrics, CHU Sainte-Justine, Université de Montreal, Montreal, Quebec, Canada
| | - Seema Mital
- Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Per Eriksson
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institute, Karolinska University Hospital, Solna, Sweden
| | - Clarisse Billon
- Genetics Department, Assistance Publique–Hȏpitaux de Paris, Hôpital Européen Georges Pompidou, National Referral Center for Rare Vascular Diseases, VASCERN MSA European Reference Center, Paris, France
- Université Paris Cité, INSERM, U970 PARCC, Paris, France
| | - Mahyar Heydarpour
- Department of Medicine, Division of Endocrinology, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Harry C. Dietz
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Xavier Jeunemaitre
- Université Paris Cité, INSERM, U970 PARCC, Paris, France
- Vascular Medicine Department, Assistance Publique–Hȏpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France
| | - Eran Leitersdorf
- Cardiology Department, Hadassah Medical Center, Jerusalem, Israel
- Faculty of Medicine, the Hebrew University, Jerusalem, Israel
- Braun School of Public Health and Community Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - David Sprinzak
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Science, Tel Aviv University, Tel Aviv, Israel
| | - Stephen C. Blacklow
- Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts
- Department of Cancer Biology, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Simon C. Body
- Department of Anesthesiology, Boston University School of Medicine, Boston, Massachusetts
| | - Shai Carmi
- Braun School of Public Health and Community Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Bart Loeys
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Edegem, Belgium
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - José Luis de la Pompa
- Intercellular Signaling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
- Ciber de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
| | - Dan Gilon
- Cardiology Department, Hadassah Medical Center, Jerusalem, Israel
| | - Emmanuel Messas
- Université Paris Cité, INSERM, U970 PARCC, Paris, France
- Vascular Medicine Department, Assistance Publique–Hȏpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France
- French Research Consortium RHU STOP-AS, Rouen, France
| | - Ronen Durst
- Cardiology Department, Hadassah Medical Center, Jerusalem, Israel
- Faculty of Medicine, the Hebrew University, Jerusalem, Israel
- Braun School of Public Health and Community Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
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8
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Moretti B, Rodriguez Alvarez SN, Grecco HE. Nfinder: automatic inference of cell neighborhood in 2D and 3D using nuclear markers. BMC Bioinformatics 2023; 24:230. [PMID: 37270479 DOI: 10.1186/s12859-023-05284-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/12/2023] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND In tissues and organisms, the coordination of neighboring cells is essential to maintain their properties and functions. Therefore, knowing which cells are adjacent is crucial to understand biological processes that involve physical interactions among them, e.g. cell migration and proliferation. In addition, some signaling pathways, such as Notch or extrinsic apoptosis, are highly dependent on cell-cell communication. While this is straightforward to obtain from membrane images, nuclei labelling is much more ubiquitous for technical reasons. However, there are no automatic and robust methods to find neighboring cells based only on nuclear markers. RESULTS In this work, we describe Nfinder, a method to assess the cell's local neighborhood from images with nuclei labeling. To achieve this goal, we approximate the cell-cell interaction graph by the Delaunay triangulation of nuclei centroids. Then, links are filtered by automatic thresholding in cell-cell distance (pairwise interaction) and the maximum angle that a pair of cells subtends with shared neighbors (non-pairwise interaction). We systematically characterized the detection performance by applying Nfinder to publicly available datasets from Drosophila melanogaster, Tribolium castaneum, Arabidopsis thaliana and C. elegans. In each case, the result of the algorithm was compared to a cell neighbor graph generated by manually annotating the original dataset. On average, our method detected 95% of true neighbors, with only 6% of false discoveries. Remarkably, our findings indicate that taking into account non-pairwise interactions might increase the Positive Predictive Value up to + 11.5%. CONCLUSION Nfinder is the first robust and automatic method for estimating neighboring cells in 2D and 3D based only on nuclear markers and without any free parameters. Using this tool, we found that taking non-pairwise interactions into account improves the detection performance significantly. We believe that using our method might improve the effectiveness of other workflows to study cell-cell interactions from microscopy images. Finally, we also provide a reference implementation in Python and an easy-to-use napari plugin.
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Affiliation(s)
- Bruno Moretti
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Buenos Aires, Argentina.
- CONICET - Universidad de Buenos Aires, Instituto de Física de Buenos Aires (IFIBA), Buenos Aires, Argentina.
- Department of Molecular and Cell Biology, University of California at Berkeley, Berkeley, USA.
- Chan Zuckerberg Biohub-San Francisco, San Francisco, USA.
| | - Santiago N Rodriguez Alvarez
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Buenos Aires, Argentina
- Institute of Physics, Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland
| | - Hernán E Grecco
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Buenos Aires, Argentina.
- CONICET - Universidad de Buenos Aires, Instituto de Física de Buenos Aires (IFIBA), Buenos Aires, Argentina.
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9
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Kobayashi M, Yoshimoto M. Multiple waves of fetal-derived immune cells constitute adult immune system. Immunol Rev 2023; 315:11-30. [PMID: 36929134 PMCID: PMC10754384 DOI: 10.1111/imr.13192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
It has been over three decades since Drs. Herzenberg and Herzenberg proposed the layered immune system hypothesis, suggesting that different types of stem cells with distinct hematopoietic potential produce specific immune cells. This layering of immune system development is now supported by recent studies showing the presence of fetal-derived immune cells that function in adults. It has been shown that various immune cells arise at different embryonic ages via multiple waves of hematopoiesis from special endothelial cells (ECs), referred to as hemogenic ECs. However, it remains unknown whether these fetal-derived immune cells are produced by hematopoietic stem cells (HSCs) during the fetal to neonatal period. To address this question, many advanced tools have been used, including lineage-tracing mouse models, cellular barcoding techniques, clonal assays, and transplantation assays at the single-cell level. In this review, we will review the history of the search for the origins of HSCs, B-1a progenitors, and mast cells in the mouse embryo. HSCs can produce both B-1a and mast cells within a very limited time window, and this ability declines after embryonic day (E) 14.5. Furthermore, the latest data have revealed that HSC-independent adaptive immune cells exist in adult mice, which implies more complicated developmental pathways of immune cells. We propose revised road maps of immune cell development.
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Affiliation(s)
- Michihiro Kobayashi
- Center for Stem Cell and Regenerative Medicine, Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Momoko Yoshimoto
- Center for Stem Cell and Regenerative Medicine, Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA
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10
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Yokoyama U, Oka S, Saito J. Molecular mechanisms regulating extracellular matrix-mediated remodeling in the ductus arteriosus. Semin Perinatol 2023; 47:151716. [PMID: 36906477 DOI: 10.1016/j.semperi.2023.151716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
Abstract
Progressive remodeling throughout the fetal and postnatal period is essential for anatomical closure of the ductus arteriosus (DA). Internal elastic lamina interruption and subendothelial region widening, elastic fiber formation impairment in the tunica media, and intimal thickening are distinctive features of the fetal DA. After birth, the DA undergoes further extracellular matrix-mediated remodeling. Based on the knowledge obtained from mouse models and human disease, recent studies revealed a molecular mechanism of DA remodeling. In this review, we focus on matrix remodeling and regulation of cell migration/proliferation associated with DA anatomical closure and discuss the role of prostaglandin E receptor 4 (EP4) signaling and jagged1-Notch signaling as well as myocardin, vimentin, and secretory components including tissue plasminogen activator, versican, lysyl oxidase, and bone morphogenetic proteins 9 and 10.
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Affiliation(s)
- Utako Yokoyama
- Department of Physiology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, Japan 160-8402.
| | - Sayuki Oka
- Department of Physiology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, Japan 160-8402
| | - Junichi Saito
- Department of Physiology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, Japan 160-8402
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11
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Gagliani EK, Gutzwiller LM, Kuang Y, Odaka Y, Hoffmeister P, Hauff S, Turkiewicz A, Harding-Theobald E, Dolph PJ, Borggrefe T, Oswald F, Gebelein B, Kovall RA. A Drosophila Su(H) model of Adams-Oliver Syndrome reveals cofactor titration as a mechanism underlying developmental defects. PLoS Genet 2022; 18:e1010335. [PMID: 35951645 PMCID: PMC9398005 DOI: 10.1371/journal.pgen.1010335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 08/23/2022] [Accepted: 07/11/2022] [Indexed: 12/02/2022] Open
Abstract
Notch signaling is a conserved pathway that converts extracellular receptor-ligand interactions into changes in gene expression via a single transcription factor (CBF1/RBPJ in mammals; Su(H) in Drosophila). In humans, RBPJ variants have been linked to Adams-Oliver syndrome (AOS), a rare autosomal dominant disorder characterized by scalp, cranium, and limb defects. Here, we found that a previously described Drosophila Su(H) allele encodes a missense mutation that alters an analogous residue found in an AOS-associated RBPJ variant. Importantly, genetic studies support a model that heterozygous Drosophila with the AOS-like Su(H) allele behave in an opposing manner to heterozygous flies with a Su(H) null allele, due to a dominant activity of sequestering either the Notch co-activator or the antagonistic Hairless co-repressor. Consistent with this model, AOS-like Su(H) and Rbpj variants have decreased DNA binding activity compared to wild type proteins, but these variants do not significantly alter protein binding to the Notch co-activator or the fly and mammalian co-repressors, respectively. Taken together, these data suggest a cofactor sequestration mechanism underlies AOS phenotypes associated with RBPJ variants, whereby the AOS-associated RBPJ allele encodes a protein with compromised DNA binding activity that retains cofactor binding, resulting in Notch target gene dysregulation. Adams-Oliver Syndrome (AOS) is a rare disease defined by missing skin/skull tissue, limb malformations, and cardiovascular abnormalities. Human genetic studies have revealed that ~40% of AOS patients inherit dominant mutations within specific genes in the Notch signaling pathway. Notch signaling is a highly conserved cell-to-cell communication pathway found in all metazoans and plays crucial roles during embryogenesis and tissue homeostasis in organisms from Drosophila (fruit-flies) to mammals. The Notch receptor converts cell-to-cell interactions into a Notch signal that enters the nucleus and activates target genes by binding to a highly conserved transcription factor. Here, we took advantage of the unexpected finding that a previously described dominant allele in the Drosophila Notch pathway transcription factor contains a missense variant in an analogous residue found in a family with AOS. Using this novel animal model of AOS along with biochemical DNA binding, protein-protein interaction, and transcriptional reporter assays, we found that this transcription factor variant selectively compromises DNA binding but not binding to the Notch signal nor binding to other proteins in the Notch pathway. Taken together with prior human genetic studies, these data suggest AOS phenotypes associated with variants in the Notch pathway transcription factor are caused by a dominant mechanism that sequesters the Notch signal, leading to Notch target gene dysregulation.
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Affiliation(s)
- Ellen K. Gagliani
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
| | - Lisa M. Gutzwiller
- Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Yi Kuang
- Graduate program in Molecular and Developmental Biology, Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Yoshinobu Odaka
- Biology Department, University of Cincinnati Blue Ash College, Cincinnati, Ohio, United States of America
| | - Phillipp Hoffmeister
- University Medical Center Ulm, Center for Internal Medicine, Department of Internal Medicine, Ulm, Germany
| | - Stefanie Hauff
- University Medical Center Ulm, Center for Internal Medicine, Department of Internal Medicine, Ulm, Germany
| | | | - Emily Harding-Theobald
- Department of Biology, Dartmouth College, Hanover, New Hampshire, United States of America
| | - Patrick J. Dolph
- Department of Biology, Dartmouth College, Hanover, New Hampshire, United States of America
| | - Tilman Borggrefe
- Institute of Biochemistry, University of Giessen, Giessen, Germany
| | - Franz Oswald
- University Medical Center Ulm, Center for Internal Medicine, Department of Internal Medicine, Ulm, Germany
| | - Brian Gebelein
- Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States of America
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
- * E-mail: (BG); (RAK)
| | - Rhett A. Kovall
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America
- * E-mail: (BG); (RAK)
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12
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Falk HJ, Tomita T, Mönke G, McDole K, Aulehla A. Imaging the onset of oscillatory signaling dynamics during mouse embryo gastrulation. Development 2022; 149:275659. [PMID: 35686648 PMCID: PMC9340547 DOI: 10.1242/dev.200083] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 05/25/2022] [Indexed: 01/24/2023]
Abstract
A fundamental requirement for embryonic development is the coordination of signaling activities in space and time. A notable example in vertebrate embryos is found during somitogenesis, where gene expression oscillations linked to the segmentation clock are synchronized across cells in the presomitic mesoderm (PSM) and result in tissue-level wave patterns. To examine their onset during mouse embryo development, we studied the dynamics of the segmentation clock gene Lfng during gastrulation. To this end, we established an imaging setup using selective plane illumination microscopy (SPIM) that enables culture and simultaneous imaging of up to four embryos (‘SPIM- for-4’). Using SPIM-for-4, combined with genetically encoded signaling reporters, we detected the onset of Lfng oscillations within newly formed mesoderm at presomite stages. Functionally, we found that initial synchrony and the first ∼6-8 oscillation cycles occurred even when Notch signaling was impaired, revealing similarities to previous findings made in zebrafish embryos. Finally, we show that a spatial period gradient is present at the onset of oscillatory activity, providing a potential mechanism accounting for our observation that wave patterns build up gradually over the first oscillation cycles. Summary: A versatile light-sheet imaging setup enabling simultaneous live imaging of multiple mouse embryos for 48 h, an approach that offers insight into the onset of oscillatory signaling dynamics and the segmentation clock.
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Affiliation(s)
- Henning J Falk
- Developmental Biology Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Takehito Tomita
- Developmental Biology Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Gregor Mönke
- Developmental Biology Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Katie McDole
- Division of Cell Biology, MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, UK
| | - Alexander Aulehla
- Developmental Biology Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
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13
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Bochter MS, Servello D, Kakuda S, D'Amico R, Ebetino MF, Haltiwanger RS, Cole SE. Lfng and Dll3 cooperate to modulate protein interactions in cis and coordinate oscillatory Notch pathway activation in the segmentation clock. Dev Biol 2022; 487:42-56. [PMID: 35429490 PMCID: PMC9923780 DOI: 10.1016/j.ydbio.2022.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 03/14/2022] [Accepted: 04/08/2022] [Indexed: 01/11/2023]
Abstract
In mammalian development, oscillatory activation of Notch signaling is required for segmentation clock function during somitogenesis. Notch activity oscillations are synchronized between neighboring cells in the presomitic mesoderm (PSM) and have a period that matches the rate of somite formation. Normal clock function requires cyclic expression of the Lunatic fringe (LFNG) glycosyltransferase, as well as expression of the inhibitory Notch ligand Delta-like 3 (DLL3). How these factors coordinate Notch activation in the clock is not well understood. Recent evidence suggests that LFNG can act in a signal-sending cell to influence Notch activity in the clock, raising the possibility that in this context, glycosylation of Notch pathway proteins by LFNG may affect ligand activity. Here we dissect the genetic interactions of Lfng and Dll3 specifically in the segmentation clock and observe distinctions in the skeletal and clock phenotypes of mutant embryos showing that paradoxically, loss of Dll3 is associated with strong reductions in Notch activity in the caudal PSM. The patterns of Notch activity in the PSM suggest that the loss of Dll3 is epistatic to the loss of Lfng in the segmentation clock, and we present direct evidence for the modification of several DLL1 and DLL3 EGF-repeats by LFNG. We further demonstrate that DLL3 expression in cells co-expressing DLL1 and NOTCH1 can potentiate a cell's signal-sending activity and that this effect is modulated by LFNG, suggesting a mechanism for coordinated regulation of oscillatory Notch activation in the clock by glycosylation and cis-inhibition.
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Affiliation(s)
- Matthew S Bochter
- The Department of Molecular Genetics, The Ohio State University. Columbus, OH, 43210, USA
| | - Dustin Servello
- The Department of Molecular Genetics, The Ohio State University. Columbus, OH, 43210, USA
| | - Shinako Kakuda
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Rachel D'Amico
- The Department of Molecular Genetics, The Ohio State University. Columbus, OH, 43210, USA
| | - Meaghan F Ebetino
- The Department of Molecular Genetics, The Ohio State University. Columbus, OH, 43210, USA
| | - Robert S Haltiwanger
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794, USA; Department of Biochemistry and Molecular Biology, Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - Susan E Cole
- The Department of Molecular Genetics, The Ohio State University. Columbus, OH, 43210, USA.
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14
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Varga BV, Faiz M, Pivonkova H, Khelifi G, Yang H, Gao S, Linderoth E, Zhen M, Karadottir RT, Hussein SM, Nagy A. Signal requirement for cortical potential of transplantable human neuroepithelial stem cells. Nat Commun 2022; 13:2844. [PMID: 35606347 PMCID: PMC9126949 DOI: 10.1038/s41467-022-29839-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/21/2022] [Indexed: 01/26/2023] Open
Abstract
The cerebral cortex develops from dorsal forebrain neuroepithelial progenitor cells. Following the initial expansion of the progenitor cell pool, these cells generate neurons of all the cortical layers and then astrocytes and oligodendrocytes. Yet, the regulatory pathways that control the expansion and maintenance of the progenitor cell pool are currently unknown. Here we define six basic pathway components that regulate proliferation of cortically specified human neuroepithelial stem cells (cNESCs) in vitro without the loss of cerebral cortex developmental potential. We show that activation of FGF and inhibition of BMP and ACTIVIN A signalling are required for long-term cNESC proliferation. We also demonstrate that cNESCs preserve dorsal telencephalon-specific potential when GSK3, AKT and nuclear CATENIN-β1 activity are low. Remarkably, regulation of these six pathway components supports the clonal expansion of cNESCs. Moreover, cNESCs differentiate into lower- and upper-layer cortical neurons in vitro and in vivo. The identification of mechanisms that drive the neuroepithelial stem cell self-renewal and differentiation and preserve this potential in vitro is key to developing regenerative and cell-based therapeutic approaches to treat neurological conditions.
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Affiliation(s)
- Balazs V Varga
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada. .,Wellcome - MRC Cambridge Stem Cell Institute, University of Cambridge, Puddicombe Way, Cambridge, UK.
| | - Maryam Faiz
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Surgery, Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Helena Pivonkova
- Wellcome - MRC Cambridge Stem Cell Institute, University of Cambridge, Puddicombe Way, Cambridge, UK
| | - Gabriel Khelifi
- Cancer Research Center, Université Laval, Quebec City, QC, Canada.,CHU of Québec-Université Laval Research Center, Oncology Division, Quebec City, QC, Canada
| | - Huijuan Yang
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Shangbang Gao
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Emma Linderoth
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Mei Zhen
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Ragnhildur Thora Karadottir
- Wellcome - MRC Cambridge Stem Cell Institute, University of Cambridge, Puddicombe Way, Cambridge, UK.,Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - Samer M Hussein
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Cancer Research Center, Université Laval, Quebec City, QC, Canada.,CHU of Québec-Université Laval Research Center, Oncology Division, Quebec City, QC, Canada
| | - Andras Nagy
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada. .,Department of Obstetrics and Gynaecology, and Institute of Medical Science, University of Toronto, Toronto, ON, Canada. .,Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia.
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15
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Kaneko T, Horiuchi K, Chijimatsu R, Mori D, Nagata K, Omata Y, Yano F, Inui H, Moro T, Tanaka S, Saito T. Regulation of osteoarthritis development by ADAM17/Tace in articular cartilage. J Bone Miner Metab 2022; 40:196-207. [PMID: 34751824 DOI: 10.1007/s00774-021-01278-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/08/2021] [Indexed: 10/19/2022]
Abstract
INTRODUCTION A disintegrin and metalloproteinase 17 (Adam17), also known as TNFα-converting enzyme (Tace), is a membrane-anchored protein involved in shedding of TNF, IL-6 receptor, ligands of epidermal growth factor receptor (EGFR), and Notch receptor. This study aimed to examine the role of Adam17 in adult articular cartilage and osteoarthritis (OA) pathophysiology. MATERIALS AND METHODS Adam17 expression was examined in mouse knee joints during OA development. We analyzed OA development in tamoxifen-inducible chondrocyte-specific Adam17 knockout mice of a resection of the medial meniscus and medial collateral ligament (medial) model, destabilization of the medial meniscus (DMM) model, and aging model. We analyzed downstream pathways by in vitro experiments, and further performed intra-articular administration of an Adam17 inhibitor TAPI-0 for surgically induced mouse OA. RESULTS Adam17 expression in mouse articular cartilage was increased by OA progression. In all models, Adam17 knockout mice showed ameliorated progression of articular cartilage degradation. Adam17 knockout decreased matrix metallopeptidase 13 (Mmp13) expression in both in vivo and in vitro experiments, whereas Adam17 activation by phorbol-12-myristate-13-acetate (PMA) increased Mmp13 and decreased aggrecan in mouse primary chondrocytes. Adam17 activation enhanced release of soluble TNF and transforming growth factor alpha, a representative EGF ligand, from mouse primary chondrocytes, while it did not change release of soluble IL-6 receptor or nuclear translocation of Notch1 intercellular domain. Intra-articular administration of the Adam17 inhibitor ameliorated OA progression. CONCLUSIONS This study demonstrates regulation of OA development by Adam17, involvement of EGFR and TNF pathways, and the possibility of Adam17 as a therapeutic target for OA.
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Affiliation(s)
- Taizo Kaneko
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, National Defense Medical College, Saitama, 359-8513, Japan
| | - Ryota Chijimatsu
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Daisuke Mori
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kosei Nagata
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yasunori Omata
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Fumiko Yano
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Hiroshi Inui
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Toru Moro
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
- Division of Science for Joint Reconstruction, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Sakae Tanaka
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Taku Saito
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
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16
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Elmore SA, Cochran RZ, Bolon B, Lubeck B, Mahler B, Sabio D, Ward JM. Histology Atlas of the Developing Mouse Placenta. Toxicol Pathol 2021; 50:60-117. [PMID: 34872401 PMCID: PMC8678285 DOI: 10.1177/01926233211042270] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The use of the mouse as a model organism is common in translational research. This mouse-human similarity holds true for placental development as well. Proper formation of the placenta is vital for development and survival of the maturing embryo. Placentation involves sequential steps with both embryonic and maternal cell lineages playing important roles. The first step in placental development is formation of the blastocyst wall (approximate embryonic days [E] 3.0-3.5). After implantation (∼E4.5), extraembryonic endoderm progressively lines the inner surface of the blastocyst wall (∼E4.5-5.0), forming the yolk sac that provides histiotrophic support to the embryo; subsequently, formation of the umbilical vessels (∼E8.5) supports transition to the chorioallantoic placenta and hemotrophic nutrition. The fully mature ("definitive") placenta is established by ∼E12.5. Abnormal placental development often leads to embryonic mortality, with the timing of death depending on when placental insufficiency takes place and which cells are involved. This comprehensive macroscopic and microscopic atlas highlights the key features of normal and abnormal mouse placental development from E4.5 to E18.5. This in-depth overview of a transient (and thus seldom-analyzed) developmental tissue should serve as a useful reference to aid researchers in identifying and describing mouse placental changes in engineered, induced, and spontaneous disease models.
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Affiliation(s)
- Susan A Elmore
- National Toxicology Program, 6857National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Robert Z Cochran
- National Toxicology Program, 6857National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | | | - Beth Lubeck
- National Toxicology Program, 6857National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Beth Mahler
- Experimental Pathology Laboratories, Inc., Research Triangle Park, NC, USA
| | - David Sabio
- Experimental Pathology Laboratories, Inc., Research Triangle Park, NC, USA
| | - Jerrold M Ward
- Global Vet Pathology, Montgomery Village, MD, USA *Co-first authors
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17
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Martinez Lyons A, Boulter L. The developmental origins of Notch-driven intrahepatic bile duct disorders. Dis Model Mech 2021; 14:dmm048413. [PMID: 34549776 PMCID: PMC8480193 DOI: 10.1242/dmm.048413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The Notch signaling pathway is an evolutionarily conserved mechanism of cell-cell communication that mediates cellular proliferation, cell fate specification, and maintenance of stem and progenitor cell populations. In the vertebrate liver, an absence of Notch signaling results in failure to form bile ducts, a complex tubular network that radiates throughout the liver, which, in healthy individuals, transports bile from the liver into the bowel. Loss of a functional biliary network through congenital malformations during development results in cholestasis and necessitates liver transplantation. Here, we examine to what extent Notch signaling is necessary throughout embryonic life to initiate the proliferation and specification of biliary cells and concentrate on the animal and human models that have been used to define how perturbations in this signaling pathway result in developmental liver disorders.
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Affiliation(s)
| | - Luke Boulter
- MRC Human Genetics Unit, Institute of Genetics and Cancer, Edinburgh EH4 2XU, UK
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Ng HL, Quail E, Cruickshank MN, Ulgiati D. To Be, or Notch to Be: Mediating Cell Fate from Embryogenesis to Lymphopoiesis. Biomolecules 2021; 11:biom11060849. [PMID: 34200313 PMCID: PMC8227657 DOI: 10.3390/biom11060849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/29/2021] [Accepted: 06/04/2021] [Indexed: 12/11/2022] Open
Abstract
Notch signaling forms an evolutionarily conserved juxtacrine pathway crucial for cellular development. Initially identified in Drosophila wing morphogenesis, Notch signaling has since been demonstrated to play pivotal roles in governing mammalian cellular development in a large variety of cell types. Indeed, abolishing Notch constituents in mouse models result in embryonic lethality, demonstrating that Notch signaling is critical for development and differentiation. In this review, we focus on the crucial role of Notch signaling in governing embryogenesis and differentiation of multiple progenitor cell types. Using hematopoiesis as a diverse cellular model, we highlight the role of Notch in regulating the cell fate of common lymphoid progenitors. Additionally, the influence of Notch through microenvironment interplay with lymphoid cells and how dysregulation influences disease processes is explored. Furthermore, bi-directional and lateral Notch signaling between ligand expressing source cells and target cells are investigated, indicating potentially novel therapeutic options for treatment of Notch-mediated diseases. Finally, we discuss the role of cis-inhibition in regulating Notch signaling in mammalian development.
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Affiliation(s)
- Han Leng Ng
- Centre for Haematology, Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, Du Cane Road, London W12 0NN, UK;
- School of Biomedical Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; (E.Q.); (M.N.C.)
| | - Elizabeth Quail
- School of Biomedical Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; (E.Q.); (M.N.C.)
- School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Mark N. Cruickshank
- School of Biomedical Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; (E.Q.); (M.N.C.)
| | - Daniela Ulgiati
- School of Biomedical Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; (E.Q.); (M.N.C.)
- Correspondence: ; Tel.: +61-8-6457-1076
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Ye Z, Braden CR, Wills A, Kimelman D. Identification of in vivo Hox13-binding sites reveals an essential locus controlling zebrafish brachyury expression. Development 2021; 148:268973. [PMID: 34061173 DOI: 10.1242/dev.199408] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 04/19/2021] [Indexed: 12/19/2022]
Abstract
During early embryogenesis, the vertebrate embryo extends from anterior to posterior because of the progressive addition of cells from a posteriorly localized neuromesodermal progenitor (NMp) population. An autoregulatory loop between Wnt and Brachyury/Tbxt is required for NMps to retain mesodermal potential and, hence, normal axis development. We recently showed that Hox13 genes help to support body axis formation and to maintain the autoregulatory loop, although the direct Hox13 target genes were unknown. Here, using a new method for identifying in vivo transcription factor-binding sites, we identified more than 500 potential Hox13 target genes in zebrafish. Importantly, we found two highly conserved Hox13-binding elements far from the tbxta transcription start site that also contain a conserved Tcf7/Lef1 (Wnt response) site. We show that the proximal of the two elements is sufficient to confer somitogenesis-stage expression to a tbxta promoter that, on its own, only drives NMp expression during gastrulation. Importantly, elimination of this proximal element produces shortened embryos due to aberrant formation of the most posterior somites. Our study provides a potential direct connection between Hox13 and regulation of the Wnt/Brachyury loop.
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Affiliation(s)
- Zhi Ye
- Department of Biochemistry, University of Washington, Seattle, WA 98195-7350, USA
| | - Christopher R Braden
- Department of Biochemistry, University of Washington, Seattle, WA 98195-7350, USA
| | - Andrea Wills
- Department of Biochemistry, University of Washington, Seattle, WA 98195-7350, USA
| | - David Kimelman
- Department of Biochemistry, University of Washington, Seattle, WA 98195-7350, USA
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Abstract
The Notch signalling pathway is one of the main regulators of endothelial biology. In the last 20 years the critical function of Notch has been uncovered in the context of angiogenesis, participating in tip-stalk specification, arterial-venous differentiation, vessel stabilization, and maturation processes. Importantly, pharmacological compounds targeting distinct members of the Notch signalling pathway have been used in the clinics for cancer therapy. However, the underlying mechanisms that support the variety of outcomes triggered by Notch in apparently opposite contexts such as angiogenesis and vascular homeostasis remain unknown. In recent years, advances in -omics technologies together with mosaic analysis and high molecular, cellular and temporal resolution studies have allowed a better understanding of the mechanisms driven by the Notch signalling pathway in different endothelial contexts. In this review we will focus on the main findings that revisit the role of Notch signalling in vascular biology. We will also discuss potential future directions and technologies that will shed light on the puzzling role of Notch during endothelial growth and homeostasis. Addressing these open questions may allow the improvement and development of therapeutic strategies based on modulation of the Notch signalling pathway.
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Hamdi-Rozé H, Ware M, Guyodo H, Rizzo A, Ratié L, Rupin M, Carré W, Kim A, Odent S, Dubourg C, David V, de Tayrac M, Dupé V. Disrupted Hypothalamo-Pituitary Axis in Association With Reduced SHH Underlies the Pathogenesis of NOTCH-Deficiency. J Clin Endocrinol Metab 2020; 105:5836893. [PMID: 32403133 DOI: 10.1210/clinem/dgaa249] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 05/10/2020] [Indexed: 12/16/2022]
Abstract
CONTEXT In human, Sonic hedgehog (SHH) haploinsufficiency is the predominant cause of holoprosencephaly, a structural malformation of the forebrain midline characterized by phenotypic heterogeneity and incomplete penetrance. The NOTCH signaling pathway has recently been associated with holoprosencephaly in humans, but the precise mechanism involving NOTCH signaling during early brain development remains unknown. OBJECTIVE The aim of this study was to evaluate the relationship between SHH and NOTCH signaling to determine the mechanism by which NOTCH dysfunction could cause midline malformations of the forebrain. DESIGN In this study, we have used a chemical inhibition approach in the chick model and a genetic approach in the mouse model. We also reported results obtained from the clinical diagnosis of a cohort composed of 141 holoprosencephaly patients. RESULTS We demonstrated that inhibition of NOTCH signaling in chick embryos as well as in mouse embryos induced a specific downregulation of SHH in the anterior hypothalamus. Our data in the mouse also revealed that the pituitary gland was the most sensitive tissue to Shh insufficiency and that haploinsufficiency of the SHH and NOTCH signaling pathways synergized to produce a malformed pituitary gland. Analysis of a large holoprosencephaly cohort revealed that some patients possessed multiple heterozygous mutations in several regulators of both pathways. CONCLUSIONS These results provided new insights into molecular mechanisms underlying the extreme phenotypic variability observed in human holoprosencephaly. They showed how haploinsufficiency of the SHH and NOTCH activity could contribute to specific congenital hypopituitarism that was associated with a sella turcica defect.
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Affiliation(s)
- Houda Hamdi-Rozé
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
- Service de Génétique Moléculaire et Génomique, CHU, Rennes, France
| | - Michelle Ware
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
| | - Hélène Guyodo
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
| | - Aurélie Rizzo
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
| | - Leslie Ratié
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
| | - Maïlys Rupin
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
| | - Wilfrid Carré
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
- Service de Génétique Moléculaire et Génomique, CHU, Rennes, France
| | - Artem Kim
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
| | - Sylvie Odent
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
- Service de Génétique Clinique, CHU, Rennes, France
| | - Christèle Dubourg
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
- Service de Génétique Moléculaire et Génomique, CHU, Rennes, France
| | - Véronique David
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
| | - Marie de Tayrac
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
- Service de Génétique Moléculaire et Génomique, CHU, Rennes, France
| | - Valérie Dupé
- Univ Rennes, CNRS, IGDR - Institut de Génétique et Développement de Rennes - UMR6290, Rennes, France
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Venzin OF, Oates AC. What are you synching about? Emerging complexity of Notch signaling in the segmentation clock. Dev Biol 2020; 460:40-54. [DOI: 10.1016/j.ydbio.2019.06.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 06/30/2019] [Accepted: 06/30/2019] [Indexed: 10/26/2022]
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Notch-mediated lateral induction is necessary to maintain vestibular prosensory identity during inner ear development. Dev Biol 2020; 462:74-84. [PMID: 32147304 DOI: 10.1016/j.ydbio.2020.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 01/24/2023]
Abstract
The five vestibular organs of the inner ear derive from patches of prosensory cells that express the transcription factor SOX2 and the Notch ligand JAG1. Previous work suggests that JAG1-mediated Notch signaling is both necessary and sufficient for prosensory formation and that the separation of developing prosensory patches is regulated by LMX1a, which antagonizes Notch signaling. We used an inner ear-specific deletion of the Rbpjκ gene in which Notch signaling is progressively lost from the inner ear to show that Notch signaling, is continuously required for the maintenance of prosensory fate. Loss of Notch signaling in prosensory patches causes them to shrink and ultimately disappear. We show this loss of prosensory fate is not due to cell death, but rather to the conversion of prosensory tissue into non-sensory tissue that expresses LMX1a. Notch signaling is therefore likely to stabilize, rather than induce prosensory fate.
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McIntyre B, Asahara T, Alev C. Overview of Basic Mechanisms of Notch Signaling in Development and Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1227:9-27. [PMID: 32072496 DOI: 10.1007/978-3-030-36422-9_2] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Notch signaling is an evolutionarily conserved pathway associated with the development and differentiation of all metazoans. It is needed for proper germ layer formation and segmentation of the embryo and controls the timing and duration of differentiation events in a dynamic manner. Perturbations of Notch signaling result in blockades of developmental cascades, developmental anomalies, and cancers. An in-depth understanding of Notch signaling is thus required to comprehend the basis of development and cancer, and can be further exploited to understand and direct the outcomes of targeted cellular differentiation into desired cell types and complex tissues from pluripotent or adult stem and progenitor cells. In this chapter, we briefly summarize the molecular, evolutionary, and developmental basis of Notch signaling. We will focus on understanding the basics of Notch signaling and its signaling control mechanisms, its developmental outcomes and perturbations leading to developmental defects, as well as have a brief look at mutations of the Notch signaling pathway causing human hereditary disorders or cancers.
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Affiliation(s)
| | | | - Cantas Alev
- Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, Japan.
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25
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Mzoughi S, Di Tullio F, Low DHP, Motofeanu CM, Ong SLM, Wollmann H, Wun CM, Kruszka P, Muenke M, Hildebrandt F, Dunn NR, Messerschmidt DM, Guccione E. PRDM15 loss of function links NOTCH and WNT/PCP signaling to patterning defects in holoprosencephaly. SCIENCE ADVANCES 2020; 6:eaax9852. [PMID: 31950080 PMCID: PMC6954057 DOI: 10.1126/sciadv.aax9852] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/30/2019] [Indexed: 05/15/2023]
Abstract
Holoprosencephaly (HPE) is a congenital forebrain defect often associated with embryonic lethality and lifelong disabilities. Currently, therapeutic and diagnostic options are limited by lack of knowledge of potential disease-causing mutations. We have identified a new mutation in the PRDM15 gene (C844Y) associated with a syndromic form of HPE in multiple families. We demonstrate that C844Y is a loss-of-function mutation impairing PRDM15 transcriptional activity. Genetic deletion of murine Prdm15 causes anterior/posterior (A/P) patterning defects and recapitulates the brain malformations observed in patients. Mechanistically, PRDM15 regulates the transcription of key effectors of the NOTCH and WNT/PCP pathways to preserve early midline structures in the developing embryo. Analysis of a large cohort of patients with HPE revealed potentially damaging mutations in several regulators of both pathways. Our findings uncover an unexpected link between NOTCH and WNT/PCP signaling and A/P patterning and set the stage for the identification of new HPE candidate genes.
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Affiliation(s)
- Slim Mzoughi
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Federico Di Tullio
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Diana H. P. Low
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Corina-Mihaela Motofeanu
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Sheena L. M. Ong
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Heike Wollmann
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Cheng Mun Wun
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Paul Kruszka
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Maximilian Muenke
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Friedhelm Hildebrandt
- Department of Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - N. Ray Dunn
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Daniel M. Messerschmidt
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Ernesto Guccione
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Oncological Sciences and Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Pharmacological Sciences and Mount Sinai Center for Therapeutics Discovery, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Corresponding author.
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Abstract
Cardiogenesis is a complex developmental process involving multiple overlapping stages of cell fate specification, proliferation, differentiation, and morphogenesis. Precise spatiotemporal coordination between the different cardiogenic processes is ensured by intercellular signalling crosstalk and tissue-tissue interactions. Notch is an intercellular signalling pathway crucial for cell fate decisions during multicellular organismal development and is aptly positioned to coordinate the complex signalling crosstalk required for progressive cell lineage restriction during cardiogenesis. In this Review, we describe the role of Notch signalling and the crosstalk with other signalling pathways during the differentiation and patterning of the different cardiac tissues and in cardiac valve and ventricular chamber development. We examine how perturbation of Notch signalling activity is linked to congenital heart diseases affecting the neonate and adult, and discuss studies that shed light on the role of Notch signalling in heart regeneration and repair after injury.
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27
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Poddar S, Kesharwani D, Datta M. miR-449a regulates insulin signalling by targeting the Notch ligand, Jag1 in skeletal muscle cells. Cell Commun Signal 2019; 17:84. [PMID: 31345231 PMCID: PMC6659245 DOI: 10.1186/s12964-019-0394-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 07/15/2019] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND miR-449a, an intronic miRNA, is highly down-regulated in the skeletal muscle during diabetes. Its levels are epigenetically regulated by altered acetylation/deacetylation on the promoter that it shares with its host gene, Cdc20b. However, the cellular role of this epigenetically regulated miRNA in the muscle during diabetes is not well understood. Here, we sought to unravel the crosstalk between altered miR-449a expression and impaired skeletal muscle metabolism. METHODS Predicted targets of miR-449a were extracted using online available target prediction tools. Differentiated C2C12 cells were transfected with the miR-449a mimic and/or its inhibitor and the levels of the target mRNA and protein was evaluated by qRT-PCR and Western Blot analysis. This was validated by luciferase wild type and mutated constructs of the target 3'UTR. Inhibition of Notch signalling was assessed by evaluating the transcript levels of Notch target genes, Hes1 and Hey1 and the status of NICD (Notch Intracellular domain) by immunofluoresence microscopy. Effect of miR-449a on insulin signalling was evaluated by monitoring insulin induced PI3K and AKT phosphorylation and glucose uptake. RESULTS Our data demonstrate that in C2C12 skeletal muscle cells, miR-449a binds to the 3'UTR of Jag1, an important Notch ligand, and down-regulates, both its transcript and protein levels. This was, however, prevented in the presence of the miR-449a inhibitor that suggests the specificity of the miRNA effect. This was validated in human primary skeletal muscle cells where miR-449a decreased Jag1 protein levels and this was prevented in the presence of the miR-449a inhibitor. This miR-449a-Jag1 interaction subsequently affects the Notch signalling pathway as was evident by the fact that miR-449a decreased the levels of NICD and consequently, the levels of Notch target genes, Hes1 and Hey1 were significantly inhibited. miR-449a and Notch pathway inhibition using DAPT, significantly increased insulin stimulated PI3K and AKT phosphorylation and these were prevented in the presence of the miR-449a inhibitor. CONCLUSION Our results indicate towards a critical role for miR-449a and its target, Jag1 in regulating Notch signalling and insulin signalling in the skeletal muscle and imply that targeting this axis might hold therapeutic potential for impaired skeletal muscle metabolism during diabetes.
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Affiliation(s)
- Shagun Poddar
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110 007, India.,Academy of Scientific and Innovative Research, CSIR-HRDC, Kamala Nehru Nagar, Ghaziabad, Uttar Pradesh, 201002, India
| | - Devesh Kesharwani
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110 007, India.,Academy of Scientific and Innovative Research, CSIR-HRDC, Kamala Nehru Nagar, Ghaziabad, Uttar Pradesh, 201002, India
| | - Malabika Datta
- CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi, 110 007, India. .,Academy of Scientific and Innovative Research, CSIR-HRDC, Kamala Nehru Nagar, Ghaziabad, Uttar Pradesh, 201002, India.
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Spatiotemporal coordination of trophoblast and allantoic Rbpj signaling directs normal placental morphogenesis. Cell Death Dis 2019; 10:438. [PMID: 31165749 PMCID: PMC6549187 DOI: 10.1038/s41419-019-1683-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/08/2019] [Accepted: 05/23/2019] [Indexed: 02/07/2023]
Abstract
The placenta, responsible for the nutrient and gas exchange between the mother and fetus, is pivotal for successful pregnancy. It has been shown that Rbpj, the core transcriptional mediator of Notch signaling pathway, is required for normal placentation in mice. However, it remains largely unclear how Rbpj signaling in different placental compartments coordinates with other important regulators to ensure normal placental morphogenesis. In this study, we found that systemic deletion of Rbpj led to abnormal chorioallantoic morphogenesis and defective trophoblast differentiation in the ectoplacental cone (EPC). Employing mouse models with selective deletion of Rbpj in the allantois versus trophoblast, combining tetraploid aggregation assay, we demonstrated that allantois-expressed Rbpj is essential for chorioallantoic attachment and subsequent invagination of allantoic blood vessels into the chorionic ectoderm. Further studies uncovered that allantoic Rbpj regulates chorioallantoic fusion and morphogenesis via targeting Vcam1 in a Notch-dependent manner. Meanwhile, we also revealed that trophoblast-expressed Rbpj in EPC facilitates Mash2’s transcriptional activity, promoting the specification of Tpbpα-positive trophoblasts, which differentiate into trophoblast subtypes responsible for interstitial and endovascular invasion at the later stage of placental development. Collectively, our study further shed light on the molecular network governing placental development and functions, highlighting the necessity of a spatiotemporal coordination of Rbpj signaling for normal placental morphogenesis.
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29
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Shawber CJ, Brown-Grant DA, Wu T, Kitajewski JK, Douglas NC. Dominant-negative inhibition of canonical Notch signaling in trophoblast cells does not disrupt placenta formation. Biol Open 2019; 8:bio.037721. [PMID: 30971411 PMCID: PMC6504009 DOI: 10.1242/bio.037721] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Proper development and function of the mammalian placenta requires interactions between embryo-derived trophoblasts and uterine endothelial cells to form mosaic vessels that facilitate blood flow to a developing conceptus. Notch signaling utilizes a cell–cell contact dependent mechanism to drive cell behaviors, such as differentiation and invasion. In mice, Notch2 is needed for proper placentation and embryo survival. We used transgenic mice with a dominant-negative form of Mastermind-like1 and Cyp19-Cre and Tpbpa-Cre drivers to inhibit canonical Notch signaling in trophoblasts. Both Cre drivers resulted in robust placental expression of dominant-negative Mastermind-like1. All pregnancies progressed beyond mid-gestation and morphological analyses of placentas revealed no differences between mutants and controls. Our data suggest that mouse placentation occurs normally despite dominant negative inhibition of trophoblast canonical Notch signaling and that Notch2 signaling via the canonical pathway is not necessary for placentation. Summary: Using transgenic mice with a dominant-negative form of Mastermind-like1 and Cyp19-Cre and Tpbpa-Cre drivers, we found that dominant negative inhibition of canonical Notch signaling in trophoblast cells does not disrupt placenta formation.
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Affiliation(s)
- Carrie J Shawber
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA
| | - Dex-Ann Brown-Grant
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA
| | - Tracy Wu
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA
| | - Jan K Kitajewski
- Department of Physiology & Biophysics, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Nataki C Douglas
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics, Gynecology and Women's Health, Rutgers Biomedical and Health Sciences, Newark, NJ 07103, USA
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Myocardial Notch1-Rbpj deletion does not affect NOTCH signaling, heart development or function. PLoS One 2018; 13:e0203100. [PMID: 30596653 PMCID: PMC6312338 DOI: 10.1371/journal.pone.0203100] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 12/11/2018] [Indexed: 01/09/2023] Open
Abstract
During vertebrate cardiac development NOTCH signaling activity in the endocardium is essential for the crosstalk between endocardium and myocardium that initiates ventricular trabeculation and valve primordium formation. This crosstalk leads later to the maturation and compaction of the ventricular chambers and the morphogenesis of the cardiac valves, and its alteration may lead to disease. Although endocardial NOTCH signaling has been shown to be crucial for heart development, its physiological role in the myocardium has not been clearly established. Here we have used mouse genetics to evaluate the role of NOTCH in myocardial development. We have inactivated the unique and ubiquitous NOTCH effector RBPJ in early cardiomyocytes progenitors, and examined its consequences in cardiac development and function. Our results show that mice with Tnnt2-Cre-mediated myocardial-specific deletion of Rbpj develop to term, with homozygous mutant animals showing normal expression of cardiac development markers, and normal adult heart function. Similar observations have been obtained after Notch1 deletion with Tnnt2-Cre. We have also deleted Rbpj in both myocardial and endocardial progenitor cells, using the Nkx2.5-Cre driver, resulting in ventricular septal defect (VSD), double outlet right ventricle (DORV), and bicuspid aortic valve (BAV), due to NOTCH signaling abrogation in the endocardium of cardiac valves. Our data demonstrate that NOTCH-RBPJ inactivation in the myocardium does not affect heart development or adult cardiac function.
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31
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Aires R, Dias A, Mallo M. Deconstructing the molecular mechanisms shaping the vertebrate body plan. Curr Opin Cell Biol 2018; 55:81-86. [DOI: 10.1016/j.ceb.2018.05.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 05/08/2018] [Accepted: 05/14/2018] [Indexed: 11/28/2022]
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Strug MR, Su RW, Kim TH, Jeong JW, Fazleabas A. The Notch Family Transcription Factor, RBPJκ, Modulates Glucose Transporter and Ovarian Steroid Hormone Receptor Expression During Decidualization. Reprod Sci 2018; 26:774-784. [PMID: 30213224 DOI: 10.1177/1933719118799209] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
During decidualization, endometrial stromal cells differentiate into a secretory phenotype to modulate the uterine microenvironment and promote embryo implantation. This highly metabolic process relies on ovarian steroid receptors and glucose transporters. Canonical Notch signaling is mediated by the transcription factor Recombination Signal Binding Protein for Immunoglobulin Kappa J Region (RBPJ). Loss of RBPJ in the mouse uterus (Pgrcre/+Rbpjflox/flox; Rbpj c-KO) results in subfertility in part due to an abnormal uterine-embryonic axis during implantation and, as described herein, decidualization failure. Induced in vivo decidualization in Rbpj c-KO mice was impaired with the downregulation of decidual markers and decreased progesterone receptor (Pgr) signaling. Consistent with in vivo mouse data, RBPJ knockdown during in vitro Human uterine fibroblast (HuF) cell decidualization results in the reduced expression of decidual marker genes along with PGR. Expression of the glucose transporter, SLC2A1, was decreased in the RBPJ-silenced HuF cells, which corresponded to decreased Slc2a1 in the secondary decidual zone of Rbpj c-KO mouse uteri. Exogenous administration of pyruvate, which bypasses the need for glucose, rescues PRL expression in RBPJ-deficient HuF cells. In summary, Notch signaling through RBPJ controls both ovarian steroid receptor PGR and glucose transporter SLC2A1 expression during decidualization, and this dysregulation likely contributes to embryo implantation failure.
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Affiliation(s)
- Michael R Strug
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, 400 Monroe Avenue NW, GRRC, Room 3020, Grand Rapids, MI, 49503, USA.,Department of Obstetrics and Gynecology, Spectrum Health, Grand Rapids, MI, USA
| | - Ren-Wei Su
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, 400 Monroe Avenue NW, GRRC, Room 3020, Grand Rapids, MI, 49503, USA
| | - Tae Hoon Kim
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, 400 Monroe Avenue NW, GRRC, Room 3020, Grand Rapids, MI, 49503, USA
| | - Jae-Wook Jeong
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, 400 Monroe Avenue NW, GRRC, Room 3020, Grand Rapids, MI, 49503, USA
| | - Asgerally Fazleabas
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, 400 Monroe Avenue NW, GRRC, Room 3020, Grand Rapids, MI, 49503, USA.
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Nonneman A, Criem N, Lewandowski SA, Nuyts R, Thal DR, Pfrieger FW, Ravits J, Van Damme P, Zwijsen A, Van Den Bosch L, Robberecht W. Astrocyte-derived Jagged-1 mitigates deleterious Notch signaling in amyotrophic lateral sclerosis. Neurobiol Dis 2018; 119:26-40. [PMID: 30010003 DOI: 10.1016/j.nbd.2018.07.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 06/21/2018] [Accepted: 07/11/2018] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a late-onset devastating degenerative disease mainly affecting motor neurons. Motor neuron degeneration is accompanied and aggravated by oligodendroglial pathology and the presence of reactive astrocytes and microglia. We studied the role of the Notch signaling pathway in ALS, as it is implicated in several processes that may contribute to this disease, including axonal retraction, microgliosis, astrocytosis, oligodendrocyte precursor cell proliferation and differentiation, and cell death. We observed abnormal activation of the Notch signaling pathway in the spinal cord of SOD1G93A mice, a well-established model for ALS, as well as in the spinal cord of patients with sporadic ALS (sALS). This increased activation was particularly evident in reactive GFAP-positive astrocytes. In addition, one of the main Notch ligands, Jagged-1, was ectopically expressed in reactive astrocytes in spinal cord from ALS mice and patients, but absent in resting astrocytes. Astrocyte-specific inactivation of Jagged-1 in presymptomatic SOD1G93A mice further exacerbated the activation of the Notch signaling pathway and aggravated the course of the disease in these animals without affecting disease onset. These data suggest that aberrant Notch signaling activation contributes to the pathogenesis of ALS, both in sALS patients and SOD1G93A mice, and that it is mitigated in part by the upregulation of astrocytic Jagged-1.
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Affiliation(s)
- Annelies Nonneman
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Nathan Criem
- VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, Herestraat 49, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Human Genetics, Herestraat 49, B-3000 Leuven, Belgium
| | - Sebastian A Lewandowski
- KTH-Royal Institute of Technology, Affinity Proteomics, SciLifeLab, 171 77 Stockholm, Sweden; Karolinska Institute, Department of Clinical Neuroscience, 171 77 Stockholm, Sweden
| | - Rik Nuyts
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Dietmar R Thal
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory for Neuropathology, Herestraat 49, B-3000 Leuven, Belgium; University Hospitals Leuven, Department of Neurology, Herestraat 49, B-3000 Leuven, Belgium
| | - Frank W Pfrieger
- Institute of Cellular and Integrative Neurosciences, CNRS UPR 3212, University of Strasbourg, 67084 Strasbourg, France
| | - John Ravits
- University of California, Department of Neurosciences, 9500 Gilman Drive, La Jolla, San Diego, CA 92093-0624, USA
| | - Philip Van Damme
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium; University Hospitals Leuven, Department of Neurology, Herestraat 49, B-3000 Leuven, Belgium
| | - An Zwijsen
- VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, Herestraat 49, B-3000 Leuven, Belgium; KU Leuven - University of Leuven, Department of Human Genetics, Herestraat 49, B-3000 Leuven, Belgium
| | - Ludo Van Den Bosch
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium
| | - Wim Robberecht
- KU Leuven - University of Leuven, Department of Neurosciences, Laboratory of Neurobiology and Experimental Neurology, and Leuven Brain Institute (LBI), Herestraat 49, B-3000 Leuven, Belgium; VIB, Center for Brain & Disease Research, Herestraat 49, B-3000 Leuven, Belgium; University Hospitals Leuven, Department of Neurology, Herestraat 49, B-3000 Leuven, Belgium.
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Geminin Orchestrates Somite Formation by Regulating Fgf8 and Notch Signaling. BIOMED RESEARCH INTERNATIONAL 2018; 2018:6543196. [PMID: 29984243 PMCID: PMC6011172 DOI: 10.1155/2018/6543196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 04/24/2018] [Accepted: 05/08/2018] [Indexed: 11/20/2022]
Abstract
During somitogenesis, Fgf8 maintains the predifferentiation stage of presomitic mesoderm (PSM) cells and its retraction gives a cue for somite formation. Delta/Notch initiates the expression of oscillation genes in the tail bud and subsequently contributes to somite formation in a periodic way. Whether there exists a critical factor coordinating Fgf8 and Notch signaling pathways is largely unknown. Here, we demonstrate that the loss of function of geminin gave rise to narrower somites as a result of derepressed Fgf8 gradient in the PSM and tail bud. Furthermore, in geminin morphants, the somite boundary could not form properly but the oscillation of cyclic genes was normal, displaying the blurry somitic boundary and disturbed somite polarity along the AP axis. In mechanism, these manifestations were mediated by the disrupted association of the geminin/Brg1 complex with intron 3 of mib1. The latter interaction was found to positively regulate mib1 transcription, Notch activity, and sequential somite segmentation during somitogenesis. In addition, geminin was also shown to regulate the expression of deltaD in mib1-independent way. Collectively, our data for the first time demonstrate that geminin regulates Fgf8 and Notch signaling to regulate somite segmentation during somitogenesis.
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Favarolo MB, López SL. Notch signaling in the division of germ layers in bilaterian embryos. Mech Dev 2018; 154:122-144. [PMID: 29940277 DOI: 10.1016/j.mod.2018.06.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/08/2018] [Accepted: 06/18/2018] [Indexed: 01/09/2023]
Abstract
Bilaterian embryos are triploblastic organisms which develop three complete germ layers (ectoderm, mesoderm, and endoderm). While the ectoderm develops mainly from the animal hemisphere, there is diversity in the location from where the endoderm and the mesoderm arise in relation to the animal-vegetal axis, ranging from endoderm being specified between the ectoderm and mesoderm in echinoderms, and the mesoderm being specified between the ectoderm and the endoderm in vertebrates. A common feature is that part of the mesoderm segregates from an ancient bipotential endomesodermal domain. The process of segregation is noisy during the initial steps but it is gradually refined. In this review, we discuss the role of the Notch pathway in the establishment and refinement of boundaries between germ layers in bilaterians, with special focus on its interaction with the Wnt/β-catenin pathway.
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Affiliation(s)
- María Belén Favarolo
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Biología Celular y Neurociencias "Prof. E. De Robertis" (IBCN), Facultad de Medicina, Laboratorio de Embriología Molecular "Prof. Dr. Andrés E. Carrasco", Buenos Aires, Argentina
| | - Silvia L López
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Biología Celular y Neurociencias "Prof. E. De Robertis" (IBCN), Facultad de Medicina, Laboratorio de Embriología Molecular "Prof. Dr. Andrés E. Carrasco", Buenos Aires, Argentina.
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Strug MR, Su RW, Kim TH, Mauriello A, Ticconi C, Lessey BA, Young SL, Lim JM, Jeong JW, Fazleabas AT. RBPJ mediates uterine repair in the mouse and is reduced in women with recurrent pregnancy loss. FASEB J 2018; 32:2452-2466. [PMID: 29242273 DOI: 10.1096/fj.201701032r] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Unexplained recurrent pregnancy loss (uRPL) is associated with repeated embryo loss and endometrial repair with elevated endometrial expression of inflammatory cytokines, including IFN-γ. Notch signaling through its transcription factor recombination signal binding protein Jκ (RBPJ) regulates mechanisms including the immune response and repair after tissue injury. Initially, null mutation of RBPJ in the mouse uterus ( Pgrcre/+Rbpjf/f; Rbpj c-KO) results in subfertility, but we have found that these mice become infertile after pregnancy as a result of dysfunctional postpartum uterine repair, including delayed endometrial epithelial and myometrial regeneration. RNA sequencing of postpartum uterine repair sites revealed global up-regulation of inflammatory pathways, including IFN signaling. Consistent with elevated IFN-γ, macrophages were recruited and polarized toward an M1-cytotoxic phenotype, which is associated with preventing repair and promoting further tissue injury. Through embryo transfer experiments, we show that dysfunctional postpartum repair directly impairs future embryo implantation in Rbpj c-KO mice. Last, we clinically correlated our findings from the Rbpj c-KO mouse in women diagnosed with uRPL. Reduced RBPJ in women with uRPL was associated with increased levels of IFN-γ. The data, taken together, indicate that RBPJ regulates inflammation during endometrial repair, which is essential for future pregnancy potential, and its dysregulation may serve as an unidentified contributor to uRPL in women.-Strug, M. R., Su, R.-W., Kim, T. H., Mauriello, A., Ticconi, C., Lessey, B. A., Young, S. L., Lim, J. M., Jeong, J.-W., Fazleabas, A. T. RBPJ mediates uterine repair in the mouse and is reduced in women with recurrent pregnancy loss.
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Affiliation(s)
- Michael R Strug
- Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, Grand Rapids, Michigan, USA
| | - Ren-Wei Su
- Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, Grand Rapids, Michigan, USA.,College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Tae Hoon Kim
- Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, Grand Rapids, Michigan, USA
| | - Alessandro Mauriello
- Section of Gynecology and Obstetrics, Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Carlo Ticconi
- Section of Gynecology and Obstetrics, Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Bruce A Lessey
- Department of Obstetrics and Gynecology, Greenville Health System, Greenville, South Carolina, USA
| | - Steven L Young
- Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jeong Mook Lim
- World Class University (WCU) Biomodulation, Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
| | - Jae-Wook Jeong
- Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, Grand Rapids, Michigan, USA
| | - Asgerally T Fazleabas
- Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, Grand Rapids, Michigan, USA
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Bigas A, Porcheri C. Notch and Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1066:235-263. [DOI: 10.1007/978-3-319-89512-3_12] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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38
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Chakravarti B, Yang J, Ahlers-Dannen KE, Luo Z, Flaherty HA, Meyerholz DK, Anderson ME, Fisher RA. Essentiality of Regulator of G Protein Signaling 6 and Oxidized Ca 2+/Calmodulin-Dependent Protein Kinase II in Notch Signaling and Cardiovascular Development. J Am Heart Assoc 2017; 6:JAHA.117.007038. [PMID: 29079565 PMCID: PMC5721783 DOI: 10.1161/jaha.117.007038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background Congenital heart defects are the most common birth defects worldwide. Although defective Notch signaling is the major cause of mouse embryonic death from cardiovascular defects, how Notch signaling is regulated during embryonic vasculogenesis and heart development is poorly understood. Methods and Results Regulator of G protein signaling 6 (RGS6)−/−/Ca2+/calmodulin‐dependent protein kinase II (CaMKII)VV double mutant mice were developed by crossing RGS6−/− mice with mice expressing an oxidation‐resistant CaMKIIδ (CaMKIIVV), and the resulting embryonic defects/lethality were investigated using E7.5 to E15.5 embryos. While loss of either RGS6 or oxidized CaMKIIδ does not alter embryogenesis, their combined loss causes defective Notch signaling, severe cardiovascular defects, and embryonic lethality (≈E10.5–11.5). Embryos lacking RGS6 and expressing oxidation‐resistant CaMKIIδ exhibit reduced myocardial wall thickness, abnormal trabeculation, and arterial specification defects. Double mutants show vascular remodeling defects, including reduced neurovascularization, delayed neural tube maturation, and small dorsal aortae. These striking cardiovascular defects were accompanied by placental and yolk sac defects in angiogenesis, hematopoiesis, and vascular remodeling similar to what is seen with defective Notch1 signaling. Double mutant hearts, embryos, and yolk sacs exhibit profound downregulation of Notch1, Jagged 1, and Notch downstream target genes Hey1, Hey2, and Hey1L as well as impaired Notch1 signaling in embryos/hearts. Conclusions RGS6 and oxidized CaMKIIδ together function as novel critical upstream modulators of Notch signaling required for normal cardiovascular development and embryo survival. Their combined need indicates that they function in parallel pathways needed for Notch1 signaling in yolk sac, placenta and embryos. Thus, dysregulated embryonic RGS6 expression and oxidative activation of CaMKII may potentially contribute to congenital heart defects.
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Affiliation(s)
- Bandana Chakravarti
- Department of Pharmacology, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Jianqi Yang
- Department of Pharmacology, University of Iowa Carver College of Medicine, Iowa City, IA
| | | | - Zili Luo
- Department of Pharmacology, University of Iowa Carver College of Medicine, Iowa City, IA
| | | | - David K Meyerholz
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Mark E Anderson
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Rory A Fisher
- Department of Pharmacology, University of Iowa Carver College of Medicine, Iowa City, IA
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Mašek J, Andersson ER. The developmental biology of genetic Notch disorders. Development 2017; 144:1743-1763. [PMID: 28512196 DOI: 10.1242/dev.148007] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Notch signaling regulates a vast array of crucial developmental processes. It is therefore not surprising that mutations in genes encoding Notch receptors or ligands lead to a variety of congenital disorders in humans. For example, loss of function of Notch results in Adams-Oliver syndrome, Alagille syndrome, spondylocostal dysostosis and congenital heart disorders, while Notch gain of function results in Hajdu-Cheney syndrome, serpentine fibula polycystic kidney syndrome, infantile myofibromatosis and lateral meningocele syndrome. Furthermore, structure-abrogating mutations in NOTCH3 result in CADASIL. Here, we discuss these human congenital disorders in the context of known roles for Notch signaling during development. Drawing on recent analyses by the exome aggregation consortium (EXAC) and on recent studies of Notch signaling in model organisms, we further highlight additional Notch receptors or ligands that are likely to be involved in human genetic diseases.
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Affiliation(s)
- Jan Mašek
- Karolinska Institutet, Huddinge 14183, Sweden
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Zaman TS, Arimochi H, Maruyama S, Ishifune C, Tsukumo SI, Kitamura A, Yasutomo K. Notch Balances Th17 and Induced Regulatory T Cell Functions in Dendritic Cells by Regulating Aldh1a2 Expression. THE JOURNAL OF IMMUNOLOGY 2017; 199:1989-1997. [DOI: 10.4049/jimmunol.1700645] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 07/06/2017] [Indexed: 01/19/2023]
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Feng S, Shi T, Qiu J, Yang H, Wu Y, Zhou W, Wang W, Wu H. Notch1 deficiency in postnatal neural progenitor cells in the dentate gyrus leads to emotional and cognitive impairment. FASEB J 2017; 31:4347-4358. [PMID: 28611114 DOI: 10.1096/fj.201700216rr] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 05/30/2017] [Indexed: 01/19/2023]
Abstract
It is well known that Notch1 signaling plays a crucial role in embryonic neural development and adult neurogenesis. The latest evidence shows that Notch1 also plays a critical role in synaptic plasticity in mature hippocampal neurons. So far, deeper insights into the function of Notch1 signaling during the different steps of adult neurogenesis are still lacking, and the mechanisms by which Notch1 dysfunction is associated with brain disorders are also poorly understood. In the current study, we found that Notch1 was highly expressed in the adult-born immature neurons in the hippocampal dentate gyrus. Using a genetic approach to selectively ablate Notch1 signaling in late immature precursors in the postnatal hippocampus by cross-breeding doublecortin (DCX)+ neuron-specific proopiomelanocortin (POMC)-α Cre mice with floxed Notch1 mice, we demonstrated a previously unreported pivotal role of Notch1 signaling in survival and function of adult newborn neurons in the dentate gyrus. Moreover, behavioral and functional studies demonstrated that POMC-Notch1-/- mutant mice showed anxiety and depressive-like behavior with impaired synaptic transmission properties in the dentate gyrus. Finally, our mechanistic study showed significantly compromised phosphorylation of cAMP response element-binding protein (CREB) in Notch1 mutants, suggesting that the dysfunction of Notch1 mutants is associated with the disrupted pCREB signaling in postnatally generated immature neurons in the dentate gyrus.-Feng, S., Shi, T., Qiu, J., Yang, H., Wu, Y., Zhou, W., Wang, W., Wu, H. Notch1 deficiency in postnatal neural progenitor cells in the dentate gyrus leads to emotional and cognitive impairment.
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Affiliation(s)
- Shufang Feng
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Tianyao Shi
- Department of Traditional Chinese Medicine (TCM) and Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Jiangxia Qiu
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Haihong Yang
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Yan Wu
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Wenxia Zhou
- Department of Traditional Chinese Medicine (TCM) and Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Wei Wang
- Department of Orthopedics Research Institute, First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Haitao Wu
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China; .,Key Laboratory of Neuroregeneration, Coinnovation Center of Neuroregeneration, Nantong University, Nantong, China
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Al Jaam B, Heu K, Pennarubia F, Segelle A, Magnol L, Germot A, Legardinier S, Blanquet V, Maftah A. Reduced Notch signalling leads to postnatal skeletal muscle hypertrophy in Pofut1cax/cax mice. Open Biol 2017; 6:rsob.160211. [PMID: 27628322 PMCID: PMC5043585 DOI: 10.1098/rsob.160211] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 08/24/2016] [Indexed: 12/19/2022] Open
Abstract
Postnatal skeletal muscle growth results from the activation of satellite cells and/or an increase in protein synthesis. The Notch signalling pathway maintains satellite cells in a quiescent state, and once activated, sustains their proliferation and commitment towards differentiation. In mammals, POFUT1-mediated O-fucosylation regulates the interactions between NOTCH receptors and ligands of the DELTA/JAGGED family, thus initiating the activation of canonical Notch signalling. Here, we analysed the consequences of downregulated expression of the Pofut1 gene on postnatal muscle growth in mutant Pofut1(cax/cax) (cax, compact axial skeleton) mice and differentiation of their satellite cell-derived myoblasts (SCDMs). Pofut1(cax/cax) mice exhibited muscle hypertrophy, no hyperplasia and a decrease in satellite cell numbers compared with wild-type C3H mice. In agreement with these observations, Pofut1(cax/cax) SCDMs differentiated earlier concomitant with reduced Pax7 expression and decrease in PAX7(+)/MYOD(-) progenitor cells. In vitro binding assays showed a reduced interaction of DELTA-LIKE 1 ligand (DLL1) with NOTCH receptors expressed at the cell surface of SCDMs, leading to a decreased Notch signalling as seen by the quantification of cleaved NICD and Notch target genes. These results demonstrated that POFUT1-mediated O-fucosylation of NOTCH receptors regulates myogenic cell differentiation and affects postnatal muscle growth in mice.
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Affiliation(s)
- Bilal Al Jaam
- Univ. Limoges, INRA, UMR 1061, UGMA, 87060 Limoges, France
| | - Katy Heu
- Univ. Limoges, INRA, UMR 1061, UGMA, 87060 Limoges, France
| | | | | | | | - Agnès Germot
- Univ. Limoges, INRA, UMR 1061, UGMA, 87060 Limoges, France
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Abstract
In the developing vertebrate embryo, segmentation initiates through the formation of repeated segments, or somites, on either side of the posterior neural tube along the anterior to posterior axis. The periodicity of somitogenesis is regulated by a molecular oscillator, the segmentation clock, driving cyclic gene expression in the unsegmented paraxial mesoderm, from which somites derive. Three signaling pathways underlie the molecular mechanism of the oscillator: Wnt, FGF, and Notch. In particular, Notch has been demonstrated to be an essential piece in the intricate somitogenesis regulation puzzle. Notch is required to synchronize oscillations between neighboring cells, and is moreover necessary for somite formation and clock gene oscillations. Following ligand activation, the Notch receptor is cleaved to liberate the active intracellular domain (NICD) and during somitogenesis NICD itself is produced and degraded in a cyclical manner, requiring tightly regulated, and coordinated turnover. It was recently shown that the pace of the segmentation clock is exquisitely sensitive to levels/stability of NICD. In this review, we focus on what is known about the mechanisms regulating NICD turnover, crucial to the activity of the pathway in all developmental contexts. To date, the regulation of NICD stability has been attributed to phosphorylation of the PEST domain which serves to recruit the SCF/Sel10/FBXW7 E3 ubiquitin ligase complex involved in NICD turnover. We will describe the pathophysiological relevance of NICD-FBXW7 interaction, whose defects have been linked to leukemia and a variety of solid cancers.
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Affiliation(s)
- Francesca A Carrieri
- Division of Cell and Developmental Biology, School of Life Sciences, University of Dundee Dundee, UK
| | - Jacqueline Kim Dale
- Division of Cell and Developmental Biology, School of Life Sciences, University of Dundee Dundee, UK
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Notch signalling in placental development and gestational diseases. Placenta 2017; 56:65-72. [PMID: 28117145 DOI: 10.1016/j.placenta.2017.01.117] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 01/14/2023]
Abstract
Activation of Notch signalling upon cell-cell contact of neighbouring cells controls a plethora of cellular processes such as stem cell maintenance, cell lineage determination, cell proliferation, and survival. Accumulating evidence suggests that the pathway also critically regulates these events during placental development and differentiation. Herein, we summarize our present knowledge about Notch signalling in murine and human placentation and discuss its potential role in the pathophysiology of gestational disorders. Studies in mice suggest that Notch controls trophectoderm formation, decidualization, placental branching morphogenesis and endovascular trophoblast invasion. In humans, the particular signalling cascade promotes formation of the extravillous trophoblast lineage and regulates trophoblast proliferation, survival and differentiation. Expression patterns as well as functional analyses indicate distinct roles of Notch receptors in different trophoblast subtypes. Altered effects of Notch signalling have been detected in choriocarcinoma cells, consistent with its role in cancer development and progression. Moreover, deregulation of Notch signalling components were observed in pregnancy disorders such as preeclampsia and fetal growth restriction. In summary, Notch plays fundamental roles in different developmental processes of the placenta. Abnormal signalling through this pathway could contribute to the pathogenesis of gestational diseases with aberrant placentation and trophoblast function.
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Chal J, Guillot C, Pourquié O. PAPC couples the segmentation clock to somite morphogenesis by regulating N-cadherin-dependent adhesion. Development 2017; 144:664-676. [PMID: 28087631 DOI: 10.1242/dev.143974] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/19/2016] [Indexed: 01/08/2023]
Abstract
Vertebrate segmentation is characterized by the periodic formation of epithelial somites from the mesenchymal presomitic mesoderm (PSM). How the rhythmic signaling pulse delivered by the segmentation clock is translated into the periodic morphogenesis of somites remains poorly understood. Here, we focused on the role of paraxial protocadherin (PAPC/Pcdh8) in this process. We showed that in chicken and mouse embryos, PAPC expression is tightly regulated by the clock and wavefront system in the posterior PSM. We observed that PAPC exhibits a striking complementary pattern to N-cadherin (CDH2), marking the interface of the future somite boundary in the anterior PSM. Gain and loss of function of PAPC in chicken embryos disrupted somite segmentation by altering the CDH2-dependent epithelialization of PSM cells. Our data suggest that clathrin-mediated endocytosis is increased in PAPC-expressing cells, subsequently affecting CDH2 internalization in the anterior compartment of the future somite. This in turn generates a differential adhesion interface, allowing formation of the acellular fissure that defines the somite boundary. Thus, periodic expression of PAPC in the anterior PSM triggers rhythmic endocytosis of CDH2, allowing for segmental de-adhesion and individualization of somites.
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Affiliation(s)
- Jérome Chal
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA.,Development and Stem Cells, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS (UMR 7104), Inserm U964, Université de Strasbourg, Illkirch-Graffenstaden 67400, France.,Department of Pathology, Brigham and Women's Hospital, 77 Avenue Louis Pasteur, Boston, MA 02115, USA.,Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA, USA.,Harvard Stem Cell Institute, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - Charlène Guillot
- Department of Pathology, Brigham and Women's Hospital, 77 Avenue Louis Pasteur, Boston, MA 02115, USA.,Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA, USA
| | - Olivier Pourquié
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA .,Development and Stem Cells, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS (UMR 7104), Inserm U964, Université de Strasbourg, Illkirch-Graffenstaden 67400, France.,Department of Pathology, Brigham and Women's Hospital, 77 Avenue Louis Pasteur, Boston, MA 02115, USA.,Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA, USA.,Harvard Stem Cell Institute, 77 Avenue Louis Pasteur, Boston, MA 02115, USA.,Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA.,Howard Hughes Medical Institute, Kansas City, MO 64110, USA
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46
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Ware M, Hamdi-Rozé H, Le Friec J, David V, Dupé V. Regulation of downstream neuronal genes by proneural transcription factors during initial neurogenesis in the vertebrate brain. Neural Dev 2016; 11:22. [PMID: 27923395 PMCID: PMC5142277 DOI: 10.1186/s13064-016-0077-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 11/29/2016] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Neurons arise in very specific regions of the neural tube, controlled by components of the Notch signalling pathway, proneural genes, and other bHLH transcription factors. How these specific neuronal areas in the brain are generated during development is just beginning to be elucidated. Notably, the critical role of proneural genes during differentiation of the neuronal populations that give rise to the early axon scaffold in the developing brain is not understood. The regulation of their downstream effectors remains poorly defined. RESULTS This study provides the first overview of the spatiotemporal expression of proneural genes in the neuronal populations of the early axon scaffold in both chick and mouse. Overexpression studies and mutant mice have identified a number of specific neuronal genes that are targets of proneural transcription factors in these neuronal populations. CONCLUSION Together, these results improve our understanding of the molecular mechanisms involved in differentiation of the first neuronal populations in the brain.
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Affiliation(s)
- Michelle Ware
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France.,Present address: Department of Physiology, Development and Neuroscience, University of Cambridge, Anatomy Building, Downing Street, CB2 3DY, Cambridge, UK
| | - Houda Hamdi-Rozé
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France.,Laboratoire de Génétique Moléculaire, CHU Pontchaillou, Rennes Cedex, France
| | - Julien Le Friec
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France
| | - Véronique David
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France.,Laboratoire de Génétique Moléculaire, CHU Pontchaillou, Rennes Cedex, France
| | - Valérie Dupé
- Institut de Génétique et Développement de Rennes, Faculté de Médecine, CNRS UMR6290, Université de Rennes 1, IFR140 GFAS, 2 Avenue du Pr. Léon Bernard, 35043, Rennes Cedex, France.
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47
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Nus M, Martínez-Poveda B, MacGrogan D, Chevre R, D'Amato G, Sbroggio M, Rodríguez C, Martínez-González J, Andrés V, Hidalgo A, de la Pompa JL. Endothelial Jag1-RBPJ signalling promotes inflammatory leucocyte recruitment and atherosclerosis. Cardiovasc Res 2016; 112:568-580. [PMID: 27496872 DOI: 10.1093/cvr/cvw193] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 07/21/2016] [Indexed: 11/13/2022] Open
Abstract
Aim To determine the role of NOTCH during the arterial injury response and the subsequent chronic arterial-wall inflammation underlying atherosclerosis. Methods and results We have generated a mouse model of endothelial-specific (Cdh5-driven) depletion of the Notch effector recombination signal binding protein for immunoglobulin kappa J region (RBPJ) [(ApoE-/-); homozygous RBPJk conditional mice (RBPJflox/flox); Cadherin 5-CreERT, tamoxifen inducible driver mice (Cdh5-CreERT)]. Endothelial-specific deletion of RBPJ or systemic deletion of Notch1 in athero-susceptible ApoE-/- mice fed a high-cholesterol diet for 6 weeks resulted in reduced atherosclerosis in the aortic arch and sinus. Intravital microscopy revealed decreased leucocyte rolling on the endothelium of ApoE-/-; RBPJflox/flox; Cdh5-CreERT mice, correlating with a lowered content of leucocytes and macrophages in the vascular wall. Transcriptome analysis revealed down-regulation of proinflammatory and endothelial activation pathways in atherosclerotic tissue of RBPJ-mutant mice. During normal Notch activation, Jagged1 signalling up-regulation in endothelial cells promotes nuclear translocation of the Notch1 intracellular domain (N1ICD) and its physical interaction with nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB). This N1ICD-NF-κB interaction is required for reciprocal transactivation of target genes, including vascular cell adhesion molecule-1. Conclusions Notch signalling pathway inactivation decreases leucocyte rolling, thereby preventing endothelial dysfunction and vascular inflammation. Attenuation of Notch signalling might provide a treatment strategy for atherosclerosis.
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Affiliation(s)
- Meritxell Nus
- Intercellular Signalling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain.,Division of Cardiovascular Medicine, Department of Medicine, University of Cambridge, West Forvie Building, Forvie Site, Robinson Way, Cambridge CB2 0SZ, UK
| | - Beatriz Martínez-Poveda
- Intercellular Signalling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain
| | - Donal MacGrogan
- Intercellular Signalling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain
| | - Rafael Chevre
- Molecular and Genetic Cardiovascular Pathophysiology Laboratory, CNIC, Melchor Fernández Almagro 3, 28029 Madrid, Spain
| | - Gaetano D'Amato
- Intercellular Signalling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain
| | - Mauro Sbroggio
- Intercellular Signalling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain
| | - Cristina Rodríguez
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB Sant Pau. Sant Antoni María Claret 167, 08025 Barcelona, Spain
| | - José Martínez-González
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB Sant Pau. Sant Antoni María Claret 167, 08025 Barcelona, Spain
| | - Vicente Andrés
- Molecular and Genetic Cardiovascular Pathophysiology Laboratory, CNIC, Melchor Fernández Almagro 3, 28029 Madrid, Spain
| | - Andrés Hidalgo
- Imaging Cardiovascular Inflammation and the Immune Response Laboratory, CNIC, Melchor Fernández Almagro 3, 28029 Madrid, Spain.,Institute for Cardiovascular Prevention, Ludwig-Maximilians University, Pettenkoferstr. 9, 80336 Munich, Germany
| | - José Luis de la Pompa
- Intercellular Signalling in Cardiovascular Development & Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain
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48
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Braune EB, Tsoi YL, Phoon YP, Landor S, Silva Cascales H, Ramsköld D, Deng Q, Lindqvist A, Lian X, Sahlgren C, Jin SB, Lendahl U. Loss of CSL Unlocks a Hypoxic Response and Enhanced Tumor Growth Potential in Breast Cancer Cells. Stem Cell Reports 2016; 6:643-651. [PMID: 27066863 PMCID: PMC4939550 DOI: 10.1016/j.stemcr.2016.03.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 03/08/2016] [Accepted: 03/08/2016] [Indexed: 01/10/2023] Open
Abstract
Notch signaling is an important regulator of stem cell differentiation. All canonical Notch signaling is transmitted through the DNA-binding protein CSL, and hyperactivated Notch signaling is associated with tumor development; thus it may be anticipated that CSL deficiency should reduce tumor growth. In contrast, we report that genetic removal of CSL in breast tumor cells caused accelerated growth of xenografted tumors. Loss of CSL unleashed a hypoxic response during normoxic conditions, manifested by stabilization of the HIF1α protein and acquisition of a polyploid giant-cell, cancer stem cell-like, phenotype. At the transcriptome level, loss of CSL upregulated more than 1,750 genes and less than 3% of those genes were part of the Notch transcriptional signature. Collectively, this suggests that CSL exerts functions beyond serving as the central node in the Notch signaling cascade and reveals a role for CSL in tumorigenesis and regulation of the cellular hypoxic response. Loss of CSL accelerates tumor growth CSL deficiency unleashes a hypoxic response during normoxia Loss of CSL leads to a polyploid giant-cell, cancer stem cell-like morphology CSL-deficient cells show a Notch-independent transcriptional signature
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Affiliation(s)
- Eike-Benjamin Braune
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Yat Long Tsoi
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Yee Peng Phoon
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Sebastian Landor
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden; Turku Centre for Biotechnology, Abo Akademi University and University of Turku, 20520 Turku, Finland
| | - Helena Silva Cascales
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Daniel Ramsköld
- Rheumatology Unit, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, 17176 Stockholm, Sweden
| | - Qiaolin Deng
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Arne Lindqvist
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Xiaojun Lian
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Cecilia Sahlgren
- Turku Centre for Biotechnology, Abo Akademi University and University of Turku, 20520 Turku, Finland
| | - Shao-Bo Jin
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden.
| | - Urban Lendahl
- Department of Cell and Molecular Biology, Karolinska Institutet, 17177 Stockholm, Sweden.
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49
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Gritz E, Hirschi KK. Specification and function of hemogenic endothelium during embryogenesis. Cell Mol Life Sci 2016; 73:1547-67. [PMID: 26849156 PMCID: PMC4805691 DOI: 10.1007/s00018-016-2134-0] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 12/16/2015] [Accepted: 01/07/2016] [Indexed: 01/15/2023]
Abstract
Hemogenic endothelium is a specialized subset of developing vascular endothelium that acquires hematopoietic potential and can give rise to multilineage hematopoietic stem and progenitor cells during a narrow developmental window in tissues such as the extraembryonic yolk sac and embryonic aorta-gonad-mesonephros. Herein, we review current knowledge about the historical and developmental origins of hemogenic endothelium, the molecular events that govern hemogenic specification of vascular endothelial cells, the generation of multilineage hematopoietic stem and progenitor cells from hemogenic endothelium, and the potential for translational applications of knowledge gained from further study of these processes.
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Affiliation(s)
- Emily Gritz
- Departments of Medicine, Genetics and Biomedical Engineering, Yale Cardiovascular Research Center, Vascular Biology and Therapeutics Program, and Yale Stem Cell Center, Yale University School of Medicine, 300 George St., New Haven, CT, 06511, USA
- Department of Pediatrics, Section of Neonatal-Perinatal Medicine, Yale University School of Medicine, 333 Cedar St., New Haven, CT, 06511, USA
| | - Karen K Hirschi
- Departments of Medicine, Genetics and Biomedical Engineering, Yale Cardiovascular Research Center, Vascular Biology and Therapeutics Program, and Yale Stem Cell Center, Yale University School of Medicine, 300 George St., New Haven, CT, 06511, USA.
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50
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Souilhol C, Perea-Gomez A, Camus A, Beck-Cormier S, Vandormael-Pournin S, Escande M, Collignon J, Cohen-Tannoudji M. NOTCH activation interferes with cell fate specification in the gastrulating mouse embryo. Development 2016; 142:3649-60. [PMID: 26534985 DOI: 10.1242/dev.121145] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
NOTCH signalling is an evolutionarily conserved pathway involved in intercellular communication essential for cell fate choices during development. Although dispensable for early aspects of mouse development, canonical RBPJ-dependent NOTCH signalling has been shown to influence lineage commitment during embryonic stem cell (ESC) differentiation. NOTCH activation in ESCs promotes the acquisition of a neural fate, whereas its suppression favours their differentiation into cardiomyocytes. This suggests that NOTCH signalling is implicated in the acquisition of distinct embryonic fates at early stages of mammalian development. In order to investigate in vivo such a role for NOTCH signalling in shaping cell fate specification, we use genetic approaches to constitutively activate the NOTCH pathway in the mouse embryo. Early embryonic development, including the establishment of anterior-posterior polarity, is not perturbed by forced NOTCH activation. By contrast, widespread NOTCH activity in the epiblast triggers dramatic gastrulation defects. These are fully rescued in a RBPJ-deficient background. Epiblast-specific NOTCH activation induces acquisition of neurectoderm identity and disrupts the formation of specific mesodermal precursors including the derivatives of the anterior primitive streak, the mouse organiser. In addition, we show that forced NOTCH activation results in misregulation of NODAL signalling, a major determinant of early embryonic patterning. Our study reveals a previously unidentified role for canonical NOTCH signalling during mammalian gastrulation. It also exemplifies how in vivo studies can shed light on the mechanisms underlying cell fate specification during in vitro directed differentiation.
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Affiliation(s)
- Céline Souilhol
- Institut Pasteur, Unité de Génétique Fonctionnelle de la Souris, Département de Biologie du Développement et Cellules Souches, 25 rue du docteur Roux, Paris F-75015, France CNRS URA 2578, Paris F-75015, France
| | - Aitana Perea-Gomez
- Institut Jacques Monod, CNRS, UMR7592, Univ Paris Diderot, Sorbonne Paris Cité, Paris F-75205, France
| | - Anne Camus
- Institut Jacques Monod, CNRS, UMR7592, Univ Paris Diderot, Sorbonne Paris Cité, Paris F-75205, France
| | - Sarah Beck-Cormier
- Institut Pasteur, Unité de Génétique Fonctionnelle de la Souris, Département de Biologie du Développement et Cellules Souches, 25 rue du docteur Roux, Paris F-75015, France CNRS URA 2578, Paris F-75015, France
| | - Sandrine Vandormael-Pournin
- Institut Pasteur, Unité de Génétique Fonctionnelle de la Souris, Département de Biologie du Développement et Cellules Souches, 25 rue du docteur Roux, Paris F-75015, France CNRS URA 2578, Paris F-75015, France
| | - Marie Escande
- Institut Pasteur, Unité de Génétique Fonctionnelle de la Souris, Département de Biologie du Développement et Cellules Souches, 25 rue du docteur Roux, Paris F-75015, France CNRS URA 2578, Paris F-75015, France
| | - Jérôme Collignon
- Institut Jacques Monod, CNRS, UMR7592, Univ Paris Diderot, Sorbonne Paris Cité, Paris F-75205, France
| | - Michel Cohen-Tannoudji
- Institut Pasteur, Unité de Génétique Fonctionnelle de la Souris, Département de Biologie du Développement et Cellules Souches, 25 rue du docteur Roux, Paris F-75015, France CNRS URA 2578, Paris F-75015, France
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