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Awad KS, Wang S, Dougherty EJ, Keshavarz A, Demirkale CY, Yu ZX, Miller L, Elinoff JM, Danner RL. BMPR2 Loss Activates AKT by Disrupting DLL4/NOTCH1 and PPARγ Signaling in Pulmonary Arterial Hypertension. Int J Mol Sci 2024; 25:5403. [PMID: 38791441 PMCID: PMC11121464 DOI: 10.3390/ijms25105403] [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] [Received: 04/16/2024] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive cardiopulmonary disease characterized by pathologic vascular remodeling of small pulmonary arteries. Endothelial dysfunction in advanced PAH is associated with proliferation, apoptosis resistance, and endothelial to mesenchymal transition (EndoMT) due to aberrant signaling. DLL4, a cell membrane associated NOTCH ligand, plays a pivotal role maintaining vascular integrity. Inhibition of DLL4 has been associated with the development of pulmonary hypertension, but the mechanism is incompletely understood. Here we report that BMPR2 silencing in pulmonary artery endothelial cells (PAECs) activated AKT and suppressed the expression of DLL4. Consistent with these in vitro findings, increased AKT activation and reduced DLL4 expression was found in the small pulmonary arteries of patients with PAH. Increased NOTCH1 activation through exogenous DLL4 blocked AKT activation, decreased proliferation and reversed EndoMT. Exogenous and overexpression of DLL4 induced BMPR2 and PPRE promoter activity, and BMPR2 and PPARG mRNA in idiopathic PAH (IPAH) ECs. PPARγ, a nuclear receptor associated with EC homeostasis, suppressed by BMPR2 loss was induced and activated by DLL4/NOTCH1 signaling in both BMPR2-silenced and IPAH ECs, reversing aberrant phenotypic changes, in part through AKT inhibition. Directly blocking AKT or restoring DLL4/NOTCH1/PPARγ signaling may be beneficial in preventing or reversing the pathologic vascular remodeling of PAH.
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MESH Headings
- Humans
- Proto-Oncogene Proteins c-akt/metabolism
- Signal Transduction
- Bone Morphogenetic Protein Receptors, Type II/metabolism
- Bone Morphogenetic Protein Receptors, Type II/genetics
- PPAR gamma/metabolism
- PPAR gamma/genetics
- Receptor, Notch1/metabolism
- Receptor, Notch1/genetics
- Pulmonary Artery/metabolism
- Pulmonary Artery/pathology
- Endothelial Cells/metabolism
- Adaptor Proteins, Signal Transducing/metabolism
- Adaptor Proteins, Signal Transducing/genetics
- Calcium-Binding Proteins/metabolism
- Calcium-Binding Proteins/genetics
- Pulmonary Arterial Hypertension/metabolism
- Pulmonary Arterial Hypertension/genetics
- Pulmonary Arterial Hypertension/pathology
- Male
- Cell Proliferation
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/pathology
- Female
- Cells, Cultured
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Affiliation(s)
- Keytam S. Awad
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Shuibang Wang
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Edward J. Dougherty
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Ali Keshavarz
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Cumhur Y. Demirkale
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Zu Xi Yu
- Critical Care Medicine and Pulmonary Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20892, USA; (Z.X.Y.); (J.M.E.)
| | - Latonia Miller
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
| | - Jason M. Elinoff
- Critical Care Medicine and Pulmonary Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20892, USA; (Z.X.Y.); (J.M.E.)
| | - Robert L. Danner
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA; (S.W.); (E.J.D.); (A.K.); (C.Y.D.); (L.M.); (R.L.D.)
- Critical Care Medicine and Pulmonary Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20892, USA; (Z.X.Y.); (J.M.E.)
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2
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Awad KS, Wang S, Dougherty EJ, Keshavarz A, Demirkale CY, Yu ZX, Miller L, Elinoff JM, Danner RL. Disruption of DLL4/NOTCH1 Causes Dysregulated PPARγ/AKT Signaling in Pulmonary Arterial Hypertension. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.31.578230. [PMID: 38903104 PMCID: PMC11188078 DOI: 10.1101/2024.01.31.578230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Pulmonary arterial hypertension (PAH) is a progressive cardiopulmonary disease characterized by vascular remodeling of small pulmonary arteries. Endothelial dysfunction in advanced PAH is associated with proliferation, apoptosis resistance, and endothelial to mesenchymal transition (EndoMT) due to aberrant signaling. DLL4, a cell membrane associated NOTCH ligand, activates NOTCH1 signaling and plays a pivotal role maintaining vascular integrity. Inhibition of DLL4 has been associated with the development of pulmonary hypertension, but the mechanism is incompletely understood. Here we report that BMPR2 silencing in PAECs activated AKT and decreased DLL4 expression. DLL4 loss was also seen in lungs of patients with IPAH and HPAH. Over-expression of DLL4 in PAECs induced BMPR2 promoter activity and exogenous DLL4 increased BMPR2 mRNA through NOTCH1 activation. Furthermore, DLL4/NOTCH1 signaling blocked AKT activation, decreased proliferation and reversed EndoMT in BMPR2-silenced PAECs and ECs from IPAH patients. PPARγ, suppressed by BMPR2 loss, was induced and activated by DLL4/NOTCH1 signaling in both BMPR2-silenced and IPAH PAECs, reversing aberrant phenotypic changes, in part through AKT inhibition. Finally, leniolisib, a well-tolerated oral PI3Kδ/AKT inhibitor, decreased cell proliferation, induced apoptosis and reversed markers of EndoMT in BMPR2-silenced PAECs. Restoring DLL4/NOTCH1/PPARγ signaling and/or suppressing AKT activation may be beneficial in preventing or reversing the pathologic vascular remodeling of PAH.
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Affiliation(s)
- Keytam S Awad
- Critical Care Medicine Department, NIH Clinical Center, Bethesda, MD, US, 20892
| | - Shuibang Wang
- Critical Care Medicine Department, NIH Clinical Center, Bethesda, MD, US, 20892
| | - Edward J Dougherty
- Critical Care Medicine Department, NIH Clinical Center, Bethesda, MD, US, 20892
| | - Ali Keshavarz
- Critical Care Medicine Department, NIH Clinical Center, Bethesda, MD, US, 20892
| | - Cumhur Y Demirkale
- Critical Care Medicine Department, NIH Clinical Center, Bethesda, MD, US, 20892
| | - Zu Xi Yu
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, US, 20892
| | - Latonia Miller
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, US, 20892
| | - Jason M Elinoff
- Critical Care Medicine Department, NIH Clinical Center, Bethesda, MD, US, 20892
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, US, 20892
| | - Robert L Danner
- Critical Care Medicine Department, NIH Clinical Center, Bethesda, MD, US, 20892
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Kiselev LG, Bessolova NA, Kopylova MS, Babitskaya DA, Seledueva ED. Adams-Oliver syndrome. ROSSIYSKIY VESTNIK PERINATOLOGII I PEDIATRII (RUSSIAN BULLETIN OF PERINATOLOGY AND PEDIATRICS) 2023. [DOI: 10.21508/1027-4065-2022-67-6-93-97] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The article presents the observation of a rare hereditary disease: Adams–Oliver syndrome. In a newborn girl in the postnatal period, a lesion of the distal extremities was revealed in the form of syndactyly of the proximal phalanges of 4–5 and 2–3 fingers, hypoplasia of the nail phalanges of 2–5 fingers of the left foot, fusion of the proximal phalanges and the absence of middle and nail phalanges of 2–3 fingers of the right foot, hypoplasia of the terminal phalanx and the absence of the nail plate of the 2nd finger of the left hand. In addition to malformations of the extremities, anomalies in the development of the skin on the scalp in the form of an area of aplasia and outgrowths, represented by sweat gland hyperplasia with a fibroepithelial outgrowth, were noted. Cardiac pathology was manifested by a heart rhythm disturbance of the type of sinus bradyarrhythmia. Adams–Oliver syndrome is a complex disease with phenotypic variability, which causes difficulties in clinical diagnosis.
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Gao Y, Fu Z, Guan J, Liu X, Zhang Q. The role of Notch signaling pathway in metabolic bone diseases. Biochem Pharmacol 2023; 207:115377. [PMID: 36513140 DOI: 10.1016/j.bcp.2022.115377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/03/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
Metabolic bone diseases is the third most common endocrine diseases after diabetes and thyroid diseases. More than 500 million people worldwide suffer from metabolic bone diseases. The generation and development of bone metabolic diseases is a complex process regulated by multiple signaling pathways, among which the Notch signaling pathway is one of the most important pathways. The Notch signaling pathway regulates the differentiation and function of osteoblasts and osteoclasts, and affects the process of cartilage formation, bone formation and bone resorption. Genetic mutations in upstream and downstream of Notch signaling genes can lead to a series of metabolic bone diseases, such as Alagille syndrome, Adams-Oliver syndrome and spondylocostal dysostosis. In this review, we analyzed the mechanisms of Notch ligands, Notch receptors and signaling molecules in the process of signal transduction, and summarized the progress on the pathogenesis and clinical manifestations of bone metabolic diseases caused by Notch gene mutation. We hope to draw attention to the role of the Notch signaling pathway in metabolic bone diseases and provide new ideas and approaches for the diagnosis and treatment of metabolic bone diseases.
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Affiliation(s)
- Yongguang Gao
- Tangshan Key Laboratory of Green Speciality Chemicals, Department of Chemistry, Tangshan Normal University, Tangshan 063000, China.
| | - Zhanda Fu
- Tangshan Key Laboratory of Green Speciality Chemicals, Department of Chemistry, Tangshan Normal University, Tangshan 063000, China
| | - Junxia Guan
- Tangshan Key Laboratory of Green Speciality Chemicals, Department of Chemistry, Tangshan Normal University, Tangshan 063000, China
| | - Xinhua Liu
- Tangshan Key Laboratory of Green Speciality Chemicals, Department of Chemistry, Tangshan Normal University, Tangshan 063000, China
| | - Qing Zhang
- Tangshan Key Laboratory of Green Speciality Chemicals, Department of Chemistry, Tangshan Normal University, Tangshan 063000, China.
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Adams-Oliver syndrome and associated complications: Report of a family in Colombia and review of the literature. BIOMEDICA : REVISTA DEL INSTITUTO NACIONAL DE SALUD 2022; 42:554-561. [PMID: 36511670 PMCID: PMC9773924 DOI: 10.7705/biomedica.6524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Indexed: 12/14/2022]
Abstract
The Adams-Oliver syndrome is a rare congenital disorder characterized by aplasia cutis congenita of the scalp, terminal transverse limb defects, and congenital telangiectatic cutis marmorata. It can occur through different inheritance patterns: autosomal dominant, autosomal recessive, or de novo dominant mutations.
Although the Adams-Oliver syndrome is a rare disease, it is essential to know its clinical characteristics and inheritance patterns, to establish a correct diagnosis and its possible complications during follow-up.
In the present study, we describe the case of an adolescent with Adams-Oliver syndrome with an autosomal dominant inheritance pattern, pulmonary hypertension and plastic bronchitis, and several compromised family members.
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Vargas‐Franco D, Kalra R, Draper I, Pacak CA, Asakura A, Kang PB. The Notch signaling pathway in skeletal muscle health and disease. Muscle Nerve 2022; 66:530-544. [PMID: 35968817 PMCID: PMC9804383 DOI: 10.1002/mus.27684] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 07/20/2022] [Accepted: 07/24/2022] [Indexed: 01/05/2023]
Abstract
The Notch signaling pathway is a key regulator of skeletal muscle development and regeneration. Over the past decade, the discoveries of three new muscle disease genes have added a new dimension to the relationship between the Notch signaling pathway and skeletal muscle: MEGF10, POGLUT1, and JAG2. We review the clinical syndromes associated with pathogenic variants in each of these genes, known molecular and cellular functions of their protein products with a particular focus on the Notch signaling pathway, and potential novel therapeutic targets that may emerge from further investigations of these diseases. The phenotypes associated with two of these genes, POGLUT1 and JAG2, clearly fall within the realm of muscular dystrophy, whereas the third, MEGF10, is associated with a congenital myopathy/muscular dystrophy overlap syndrome classically known as early-onset myopathy, areflexia, respiratory distress, and dysphagia. JAG2 is a canonical Notch ligand, POGLUT1 glycosylates the extracellular domain of Notch receptors, and MEGF10 interacts with the intracellular domain of NOTCH1. Additional genes and their encoded proteins relevant to muscle function and disease with links to the Notch signaling pathway include TRIM32, ATP2A1 (SERCA1), JAG1, PAX7, and NOTCH2NLC. There is enormous potential to identify convergent mechanisms of skeletal muscle disease and new therapeutic targets through further investigations of the Notch signaling pathway in the context of skeletal muscle development, maintenance, and disease.
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Affiliation(s)
| | - Raghav Kalra
- Division of Pediatric NeurologyUniversity of Florida College of MedicineGainesvilleFlorida
| | - Isabelle Draper
- Molecular Cardiology Research InstituteTufts Medical CenterBostonMassachusetts
| | - Christina A. Pacak
- Paul and Sheila Wellstone Muscular Dystrophy CenterUniversity of Minnesota Medical SchoolMinneapolisMinnesota
- Department of NeurologyUniversity of Minnesota Medical SchoolMinneapolisMinnesota
| | - Atsushi Asakura
- Paul and Sheila Wellstone Muscular Dystrophy CenterUniversity of Minnesota Medical SchoolMinneapolisMinnesota
- Department of NeurologyUniversity of Minnesota Medical SchoolMinneapolisMinnesota
| | - Peter B. Kang
- Paul and Sheila Wellstone Muscular Dystrophy CenterUniversity of Minnesota Medical SchoolMinneapolisMinnesota
- Department of NeurologyUniversity of Minnesota Medical SchoolMinneapolisMinnesota
- Institute for Translational NeuroscienceUniversity of Minnesota Medical SchoolMinneapolisMinnesota
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7
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De Zoysa P, Toubat O, Harvey DC, Yi C, Liu J, Cavallero S, Hong YK, Sucov HM, Kumar SR. Delta-like ligand-4 regulates Notch-mediated maturation of second heart field progenitor-derived pharyngeal arterial endothelial cells. J Cell Mol Med 2022; 26:5181-5194. [PMID: 36082581 PMCID: PMC9575135 DOI: 10.1111/jcmm.17542] [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: 06/22/2021] [Revised: 08/02/2022] [Accepted: 08/22/2022] [Indexed: 11/27/2022] Open
Abstract
Mesodermal progenitors in the second heart field (SHF) express Delta‐like‐ligand 4 (Dll4) that regulates Notch‐mediated proliferation. As cells of SHF lineage mature to assume endocardial and myocardial cell fates, we have shown that Dll4 expression is lost, and the subsequent expression of another Notch ligand Jagged1 regulates Notch‐mediated maturation events in the developing heart. A subset of SHF progenitors also matures to form the pharyngeal arch artery (PAA) endothelium. Dll4 was originally identified as an arterial endothelial‐specific Notch ligand that plays an important role in blood vessel maturation, but its role in aortic arch maturation has not been studied to date secondary to the early lethality observed in Dll4 knockout mice. We show that, unlike in SHF‐derived endocardium and myocardium, Dll4 expression persists in SHF‐derived arterial endothelial cells. Using SHF‐specific conditional deletion of Dll4, we demonstrate that as SHF cells transition from their progenitor state to an endothelial fate, Dll4‐mediated Notch signalling switches from providing proliferative to maturation cues. Dll4 expression maintains arterial identity in the PAAs and plays a critical role in the maturation and re‐organization of the 4th pharyngeal arch artery, in particular. Haploinsufficiency of Dll4 in SHF leads to highly penetrant aortic arch artery abnormalities, similar to those observed in the clinic, primarily resulting from aberrant reorganization of bilateral 4th pharyngeal arch arteries. Hence, we show that cells of SHF lineage that assume an arterial endothelial fate continue to express Dll4 and the resulting Dll4‐mediated Notch signalling transitions from an early proliferative to a later maturation role during aortic arch development.
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Affiliation(s)
- Prashan De Zoysa
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Omar Toubat
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Drayton C Harvey
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Christopher Yi
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Jiang Liu
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Susana Cavallero
- Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Young-Kwon Hong
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Henry M Sucov
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Subramanyan Ram Kumar
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.,Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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8
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O'Hare M, Arboleda-Velasquez JF. Notch Signaling in Vascular Endothelial and Mural Cell Communications. Cold Spring Harb Perspect Med 2022; 12:a041159. [PMID: 35534207 PMCID: PMC9435572 DOI: 10.1101/cshperspect.a041159] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The Notch signaling pathway is a highly versatile and evolutionarily conserved mechanism with an important role in cell fate determination. Notch signaling plays a vital role in vascular development, regulating several fundamental processes such as angiogenesis, arterial/venous differentiation, and mural cell investment. Aberrant Notch signaling can result in severe vascular phenotypes as observed in cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) and Alagille syndrome. It is known that vascular endothelial cells and mural cells interact to regulate vessel formation, cell maturation, and stability of the vascular network. Defective endothelial-mural cell interactions are a common phenotype in diseases characterized by impaired vascular integrity. Further refinement of the role of Notch signaling in the vascular junctions will be critical to attempts to modulate Notch in the context of human vascular disease. In this review, we aim to consolidate and summarize our current understanding of Notch signaling in the vascular endothelial and mural cells during development and in the adult vasculature.
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Affiliation(s)
- Michael O'Hare
- Department of Ophthalmology at Harvard Medical School, Schepens Eye Research Institute of Mass Eye and Ear, Boston, Massachusetts 02114, USA
| | - Joseph F Arboleda-Velasquez
- Department of Ophthalmology at Harvard Medical School, Schepens Eye Research Institute of Mass Eye and Ear, Boston, Massachusetts 02114, USA
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Abstract
Notch signalling is an evolutionarily highly conserved signalling mechanism governing differentiation and regulating homeostasis in many tissues. In this review, we discuss recent advances in our understanding of the roles that Notch signalling plays in the vasculature. We describe how Notch signalling regulates different steps during the genesis and remodelling of blood vessels (vasculogenesis and angiogenesis), including critical roles in assigning arterial and venous identities to the emerging blood vessels and regulation of their branching. We then proceed to discuss how experimental perturbation of Notch signalling in the vasculature later in development affects vascular homeostasis. In this review, we also describe how dysregulated Notch signalling, as a consequence of direct mutations of genes in the Notch pathway or aberrant Notch signalling output, contributes to various types of vascular disease, including CADASIL, Snedden syndrome and pulmonary arterial hypertension. Finally, we point out some of the current knowledge gaps and identify remaining challenges in understanding the role of Notch in the vasculature, which need to be addressed to pave the way for Notch-based therapies to cure or ameliorate vascular disease.
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Affiliation(s)
- Francesca Del Gaudio
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Dongli Liu
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden,Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, People's Republic of China
| | - Urban Lendahl
- Department of Cell and Molecular Biology, Karolinska Institutet, 171 77 Stockholm, Sweden
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10
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Shu Y, He L, Gao M, Xiao F, Yang J, Wang S, Wei H, Zhang F, Wei H. EOGT Correlated With Immune Infiltration: A Candidate Prognostic Biomarker for Hepatocellular Carcinoma. Front Immunol 2022; 12:780509. [PMID: 35069551 PMCID: PMC8766744 DOI: 10.3389/fimmu.2021.780509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 12/09/2021] [Indexed: 11/13/2022] Open
Abstract
Background A preliminary study by our group revealed that the deficiency of EGF domain-specific O-linked N-acetylglucosamine transferase (EOGT) impaired regulatory T-cell differentiation in autoimmune hepatitis. Nevertheless, the prognostic value of EOGT in advanced hepatocellular carcinoma (HCC) and its relationship with immune infiltration remain obscured. Methods Initially, EOGT expression was evaluated by Oncomine, TIMER, GEO, and UALCAN databases. Besides, the prognostic potential of EOGT expression was analyzed using GEPIA, Kaplan-Meier plotter, CPTAC, Cox regression, and nomogram in HCC samples. Furthermore, we investigated the association between EOGT expression and tumor mutation burden, DNA methylation, and immune infiltration in addition to its possible mechanism via cBioPortal, TIMER, GEPIA, ESTIMATE, CIBERSORT, GSEA, STRING, and Cytoscape. Results The expression of EOGT in HCC was significantly higher than that in normal tissues. Additionally, elevated EOGT expression was correlated with advanced tumor staging and linked to poor overall survival and relapse-free survival, serving as a significant unfavorable prognostic indicator in HCC patients. Remarkably, our results revealed that high-EOGT expression subgroups with elevated TP53 or low CTNNB1 mutations have worse clinical outcomes than the others. Regarding immune infiltration, immunofluorescent staining showed that immune cells in HCC were positive for EOGT. Besides, elevated EOGT expression was linked to exhausted T cells and immune suppressor cells in HCC samples. More importantly, the proportion of CD8+ T cells was reduced in HCC samples with a high level of EOGT expression, but EOGT did not exhibit prognostic potential in HCC samples with increased CD8+ T cells. Conclusions EOGT may hold great potential as a novel biomarker to distinguish prognosis and immune profiles of HCC patients.
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Affiliation(s)
- Yang Shu
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Lingling He
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Meixin Gao
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Fan Xiao
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Junru Yang
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Shiwei Wang
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Herui Wei
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Fuyang Zhang
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Hongshan Wei
- Department of Gastroenterology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
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11
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Wang S, Zhu G, Jiang D, Rhen J, Li X, Liu H, Lyu Y, Tsai P, Rose Y, Nguyen T, White RJ, Pryhuber GS, Mariani TJ, Li C, Mohan A, Xu Y, Pang J. Reduced Notch1 Cleavage Promotes the Development of Pulmonary Hypertension. Hypertension 2022; 79:79-92. [PMID: 34739767 PMCID: PMC8665100 DOI: 10.1161/hypertensionaha.120.16065] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Clinical trials of Dll4 (Delta-like 4) neutralizing antibodies (Dll4nAbs) in cancer patients are ongoing. Surprisingly, pulmonary hypertension (PH) occurs in 14% to 18% of patients treated with Dll4nAbs, but the mechanisms have not been studied. Here, PH progression was measured in mice treated with Dll4nAbs. We detected Notch signaling in lung tissues and analyzed pulmonary vascular permeability and inflammation. Notch target gene array was performed on adult human pulmonary microvascular endothelial cells (ECs) after inhibiting Notch cleavage. Similar mechanisms were studied in PH mouse models and pulmonary arterial hypertension patients. The rescue effects of constitutively activated Notch1 in vivo were also measured. We observed that Dll4nAbs induced PH in mice as indicated by significantly increased right ventricular systolic pressure, as well as pulmonary vascular and right ventricular remodeling. Mechanistically, Dll4nAbs inhibited Notch1 cleavage and subsequently impaired lung endothelial barrier function and increased immune cell infiltration in vessel walls. In vitro, Notch targeted genes' expression related to cell growth and inflammation was decreased in human pulmonary microvascular ECs after the Notch1 inactivation. In lungs of PH mouse models and pulmonary arterial hypertension patients, Notch1 cleavage was inhibited. Consistently, EC cell-cell junction was leaky, and immune cell infiltration increased in PH mouse models. Overexpression activated Notch1-attenuated progression of PH in mice. In conclusion, Dll4nAbs led to PH development in mice by impaired EC barrier function and increased immune cell infiltration through inhibition of Notch1 cleavage in lung ECs. Reduced Notch1 cleavage in lung ECs could be an underlying mechanism of PH pathogenesis.
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Affiliation(s)
- Shumin Wang
- Aab Cardiovascular Research Institute and Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA
| | - Guofu Zhu
- Department of Cardiology, Pan-Vascular Research Institute, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Dongyang Jiang
- Department of Cardiology, Pan-Vascular Research Institute, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Jordan Rhen
- Aab Cardiovascular Research Institute and Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA
| | - Xiankai Li
- Department of Cardiology, Pan-Vascular Research Institute, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Hao Liu
- Department of Cardiology, Pan-Vascular Research Institute, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yuyan Lyu
- Department of Cardiology, Pan-Vascular Research Institute, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Patrick Tsai
- Department of Neurobiology, Physiology and Behavior, University of California, Davis, CA, USA
| | - Yara Rose
- Aab Cardiovascular Research Institute and Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA
| | - Tiffany Nguyen
- Aab Cardiovascular Research Institute and Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA
| | - R. James White
- Aab Cardiovascular Research Institute and Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA
- Department of Pulmonary and Critical Care Medicine, University of Rochester, Rochester, NY, USA
| | - Gloria S. Pryhuber
- Division of Neonatology, University of Rochester Medical Center, Rochester, NY, USA
| | - Thomas J. Mariani
- Division of Neonatology, University of Rochester Medical Center, Rochester, NY, USA
- Center for Pediatric Biomedical Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Chen Li
- Department of Pharmacology and Physiology, University of Rochester, Rochester, NY, USA
| | - Amy Mohan
- Aab Cardiovascular Research Institute and Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA
| | - Yawei Xu
- Department of Cardiology, Pan-Vascular Research Institute, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Jinjiang Pang
- Aab Cardiovascular Research Institute and Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA
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12
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Rojnueangnit K, Phawan T, Khetkham T, Techasatid W, Sirichongkolthong B. A novel DLL4 mutation in Adams-Oliver syndrome with absence of the right pulmonary artery in newborn. Am J Med Genet A 2021; 188:658-664. [PMID: 34755929 DOI: 10.1002/ajmg.a.62562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 05/13/2021] [Accepted: 10/15/2021] [Indexed: 11/11/2022]
Abstract
Adams-Oliver syndrome (AOS), a rare inherited disorder, is characterized by scalp and terminal limb defects. Several genes associated with Notch pathway mutations have led to AOS. Here, we report a Thai male newborn presenting with aplasia cutis congenita and absence of a right pulmonary artery, which is suggestive of AOS. This was confirmed by the identification of a novel missense mutation in DLL4, a heterozygous one base pair change at nucleotide 82 (c.82G>C, p.Gly28Arg), which is in N-terminal domain. This is the first DLL4-related AOS case with arterial defect.
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Affiliation(s)
- Kitiwan Rojnueangnit
- Division of Genetics, Department of Pediatrics, Faculty of Medicine, Thammasat University, Pathumthani, Thailand
| | - Thanyalak Phawan
- Division of Genetics, Department of Pediatrics, Faculty of Medicine, Thammasat University, Pathumthani, Thailand
| | - Thanitchet Khetkham
- Division of Forensic Medicine, Thammasat University Hospital, Khlong Nueng, Thailand
| | - Wilaiporn Techasatid
- Division of Genetics, Department of Pediatrics, Faculty of Medicine, Thammasat University, Pathumthani, Thailand
| | - Boonchu Sirichongkolthong
- Division of Genetics, Department of Pediatrics, Faculty of Medicine, Thammasat University, Pathumthani, Thailand
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13
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Wu Y, Liu J, Luo Q. Isolated aplasia cutis congenita: A report of two cases. Clin Case Rep 2021; 9:e04671. [PMID: 34430025 PMCID: PMC8365854 DOI: 10.1002/ccr3.4671] [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: 05/31/2021] [Revised: 07/03/2021] [Accepted: 07/12/2021] [Indexed: 11/09/2022] Open
Abstract
Congenital skin dysplasia, especially isolated scalp defects, is difficult to detect prenatally. The prognosis for isolated congenital scalp defects is good. Treatment options include conservative treatment and surgery. The choice of treatment depends on the patient's individual circumstances.
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Affiliation(s)
- Yan Wu
- Department of Obstetrics and GynecologyZhejiang University School of Medicine Women's HospitalHangzhou CityChina
- Department of Obstetrics and GynecologyWomen and Children's Hospital of Jiaxing UniversityJiaxingChina
| | - Jun Liu
- Pediatric Surgery DepartmentWomen and Children's Hospital of Jiaxing UniversityJiaxingChina
| | - Qiong Luo
- Department of Obstetrics and GynecologyZhejiang University School of Medicine Women's HospitalHangzhou CityChina
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14
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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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15
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Chapman G, Moreau JLM, I P E, Szot JO, Iyer KR, Shi H, Yam MX, O'Reilly VC, Enriquez A, Greasby JA, Alankarage D, Martin EMMA, Hanna BC, Edwards M, Monger S, Blue GM, Winlaw DS, Ritchie HE, Grieve SM, Giannoulatou E, Sparrow DB, Dunwoodie SL. Functional genomics and gene-environment interaction highlight the complexity of congenital heart disease caused by Notch pathway variants. Hum Mol Genet 2021; 29:566-579. [PMID: 31813956 DOI: 10.1093/hmg/ddz270] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/05/2019] [Accepted: 11/04/2019] [Indexed: 02/06/2023] Open
Abstract
Congenital heart disease (CHD) is the most common birth defect and brings with it significant mortality and morbidity. The application of exome and genome sequencing has greatly improved the rate of genetic diagnosis for CHD but the cause in the majority of cases remains uncertain. It is clear that genetics, as well as environmental influences, play roles in the aetiology of CHD. Here we address both these aspects of causation with respect to the Notch signalling pathway. In our CHD cohort, variants in core Notch pathway genes account for 20% of those that cause disease, a rate that did not increase with the inclusion of genes of the broader Notch pathway and its regulators. This is reinforced by case-control burden analysis where variants in Notch pathway genes are enriched in CHD patients. This enrichment is due to variation in NOTCH1. Functional analysis of some novel missense NOTCH1 and DLL4 variants in cultured cells demonstrate reduced signalling activity, allowing variant reclassification. Although loss-of-function variants in DLL4 are known to cause Adams-Oliver syndrome, this is the first report of a hypomorphic DLL4 allele as a cause of isolated CHD. Finally, we demonstrate a gene-environment interaction in mouse embryos between Notch1 heterozygosity and low oxygen- or anti-arrhythmic drug-induced gestational hypoxia, resulting in an increased incidence of heart defects. This implies that exposure to environmental insults such as hypoxia could explain variable expressivity and penetrance of observed CHD in families carrying Notch pathway variants.
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Affiliation(s)
- Gavin Chapman
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia.,Faculty of Medicine, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Julie L M Moreau
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | - Eddie I P
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | - Justin O Szot
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | - Kavitha R Iyer
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | - Hongjun Shi
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia.,Institute for Basic Medical Sciences, Westlake University, Hangzhou, China
| | - Michelle X Yam
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | | | - Annabelle Enriquez
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia.,Faculty of Medicine, University of New South Wales, Sydney, NSW, 2052, Australia.,Department of Clinical Genetics, The Children's Hospital at Westmead, Sydney, NSW, 2145, Australia.,Discipline of Genomic Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, 2006, Australia
| | - Joelene A Greasby
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | | | - Ella M M A Martin
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | | | - Matthew Edwards
- Hunter Genetics, John Hunter Hospital, Newcastle, NSW, 2298, Australia.,Department of Paediatrics, School of Medicine, Western Sydney University, Sydney, NSW, 2560, Australia
| | - Steven Monger
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | - Gillian M Blue
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia.,Kids Heart Research, Heart Centre for Children, The Children's Hospital at Westmead, Sydney, NSW, 2145, Australia.,Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia
| | - David S Winlaw
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia.,Kids Heart Research, Heart Centre for Children, The Children's Hospital at Westmead, Sydney, NSW, 2145, Australia.,Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia
| | - Helen E Ritchie
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, 2006, Australia
| | - Stuart M Grieve
- Sydney Translational Imaging Laboratory, Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia.,Department of Radiology, Royal Prince Alfred Hospital, Sydney, NSW, 2050, Australia
| | - Eleni Giannoulatou
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia.,Faculty of Science, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Duncan B Sparrow
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3PT, United Kingdom
| | - Sally L Dunwoodie
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia.,Faculty of Medicine, University of New South Wales, Sydney, NSW, 2052, Australia.,Faculty of Science, University of New South Wales, Sydney, NSW, 2052, Australia
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16
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De Zoysa P, Toubat O, Harvey D, Choi J, Kumar SR. Murine Model of Cardiac Defects Observed in Adams-Oliver Syndrome Driven by Delta-Like Ligand-4 Haploinsufficiency. Stem Cells Dev 2021; 30:611-621. [PMID: 33899511 DOI: 10.1089/scd.2021.0058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Heterozygous loss-of-function mutation in Delta-like ligand-4 (Dll4) is an important cause of Adams-Oliver syndrome (AOS). Cardiac defects, in particular outflow tract (OFT) alignment defects, are observed in about one-fourth of patients with this syndrome. The mechanism underlying this genotype-phenotype correlation has not yet been established. Dll4-mediated Notch signaling is known to play a crucial role in second heart field (SHF) progenitor cell proliferation. We hypothesized that the depletion of the SHF progenitor pool of cells due to partial loss of Dll4 is responsible for the OFT alignment defects seen in AOS. To demonstrate this, we studied Dll4 expression by murine SHF progenitor cells around E9.5, a crucial time-point in SHF biology. We used SHF-specific (Islet1-Cre) conditional knockout of Dll4 to bypass the early embryonic lethality seen in global Dll4 heterozygotes. Dll4-mediated Notch signaling is critically required for SHF proliferation such that Dll4 knockout results in a 33% reduction in proliferation and a fourfold increase in apoptosis in SHF cells, leading to a 56% decline in the size of the SHF progenitor pool. A reduction in SHF cells available for incorporation into the developing heart leads to underdevelopment of the SHF-derived right ventricle and OFT. Similar to the clinical syndrome, 32% of SHF-specific Dll4 heterozygotes demonstrate foreshortened and misaligned OFT, resulting in a double outlet right ventricle. Our murine model provides a molecular mechanism to explain the cardiac defects observed in AOS and establishes a novel clinical role for Dll4-mediated Notch signaling in SHF progenitor biology.
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Affiliation(s)
- Prashan De Zoysa
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, California, USA
| | - Omar Toubat
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, California, USA
| | - Drayton Harvey
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, California, USA
| | - Jongkyu Choi
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, California, USA.,Department of Medicine, and Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, California, USA
| | - S Ram Kumar
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, California, USA.,Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, California, USA
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17
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Coppens S, Barnard AM, Puusepp S, Pajusalu S, Õunap K, Vargas-Franco D, Bruels CC, Donkervoort S, Pais L, Chao KR, Goodrich JK, England EM, Weisburd B, Ganesh VS, Gudmundsson S, O'Donnell-Luria A, Nigul M, Ilves P, Mohassel P, Siddique T, Milone M, Nicolau S, Maroofian R, Houlden H, Hanna MG, Quinlivan R, Beiraghi Toosi M, Ghayoor Karimiani E, Costagliola S, Deconinck N, Kadhim H, Macke E, Lanpher BC, Klee EW, Łusakowska A, Kostera-Pruszczyk A, Hahn A, Schrank B, Nishino I, Ogasawara M, El Sherif R, Stojkovic T, Nelson I, Bonne G, Cohen E, Boland-Augé A, Deleuze JF, Meng Y, Töpf A, Vilain C, Pacak CA, Rivera-Zengotita ML, Bönnemann CG, Straub V, Handford PA, Draper I, Walter GA, Kang PB. A form of muscular dystrophy associated with pathogenic variants in JAG2. Am J Hum Genet 2021; 108:840-856. [PMID: 33861953 PMCID: PMC8206160 DOI: 10.1016/j.ajhg.2021.03.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/26/2021] [Indexed: 02/09/2023] Open
Abstract
JAG2 encodes the Notch ligand Jagged2. The conserved Notch signaling pathway contributes to the development and homeostasis of multiple tissues, including skeletal muscle. We studied an international cohort of 23 individuals with genetically unsolved muscular dystrophy from 13 unrelated families. Whole-exome sequencing identified rare homozygous or compound heterozygous JAG2 variants in all 13 families. The identified bi-allelic variants include 10 missense variants that disrupt highly conserved amino acids, a nonsense variant, two frameshift variants, an in-frame deletion, and a microdeletion encompassing JAG2. Onset of muscle weakness occurred from infancy to young adulthood. Serum creatine kinase (CK) levels were normal or mildly elevated. Muscle histology was primarily dystrophic. MRI of the lower extremities revealed a distinct, slightly asymmetric pattern of muscle involvement with cores of preserved and affected muscles in quadriceps and tibialis anterior, in some cases resembling patterns seen in POGLUT1-associated muscular dystrophy. Transcriptome analysis of muscle tissue from two participants suggested misregulation of genes involved in myogenesis, including PAX7. In complementary studies, Jag2 downregulation in murine myoblasts led to downregulation of multiple components of the Notch pathway, including Megf10. Investigations in Drosophila suggested an interaction between Serrate and Drpr, the fly orthologs of JAG1/JAG2 and MEGF10, respectively. In silico analysis predicted that many Jagged2 missense variants are associated with structural changes and protein misfolding. In summary, we describe a muscular dystrophy associated with pathogenic variants in JAG2 and evidence suggests a disease mechanism related to Notch pathway dysfunction.
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Affiliation(s)
- Sandra Coppens
- Center of Human Genetics, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Alison M Barnard
- Department of Physical Therapy, University of Florida College of Public Health and Health Professions, Gainesville, FL 32610, USA
| | - Sanna Puusepp
- Department of Clinical Genetics, United Laboratories, Tartu University Hospital, Tartu 50406, Estonia; Institute of Clinical Medicine, University of Tartu, Tartu 50406, Estonia
| | - Sander Pajusalu
- Department of Clinical Genetics, United Laboratories, Tartu University Hospital, Tartu 50406, Estonia; Institute of Clinical Medicine, University of Tartu, Tartu 50406, Estonia
| | - Katrin Õunap
- Department of Clinical Genetics, United Laboratories, Tartu University Hospital, Tartu 50406, Estonia; Institute of Clinical Medicine, University of Tartu, Tartu 50406, Estonia
| | - Dorianmarie Vargas-Franco
- Division of Pediatric Neurology, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Christine C Bruels
- Division of Pediatric Neurology, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Sandra Donkervoort
- Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, NINDS, NIH, Bethesda, MD 20892, USA
| | - Lynn Pais
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Katherine R Chao
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Julia K Goodrich
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Eleina M England
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Ben Weisburd
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Vijay S Ganesh
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Neurology, Brigham & Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Sanna Gudmundsson
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Anne O'Donnell-Luria
- Broad Center for Mendelian Genomics, Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit and Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Mait Nigul
- Department of Radiology, Tartu University Hospital, Tartu 50406, Estonia
| | - Pilvi Ilves
- Institute of Clinical Medicine, University of Tartu, Tartu 50406, Estonia; Department of Radiology, Tartu University Hospital, Tartu 50406, Estonia
| | - Payam Mohassel
- Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, NINDS, NIH, Bethesda, MD 20892, USA
| | - Teepu Siddique
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | | | - Stefan Nicolau
- Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
| | - Reza Maroofian
- Department of Neuromuscular Disorders, University College London Institute of Neurology, London WC1E 6BT, UK
| | - Henry Houlden
- Department of Neuromuscular Disorders, University College London Institute of Neurology, London WC1E 6BT, UK
| | - Michael G Hanna
- Department of Neuromuscular Disorders, University College London Institute of Neurology, London WC1E 6BT, UK
| | - Ros Quinlivan
- Department of Neuromuscular Disorders, University College London Institute of Neurology, London WC1E 6BT, UK
| | - Mehran Beiraghi Toosi
- Pediatric Neurology Department, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad 9176999311, Iran
| | - Ehsan Ghayoor Karimiani
- Molecular and Clinical Sciences Institute, St. George's, University of London, Cranmer Terrace, London SW17 0RE, UK; Innovative Medical Research Center, Mashhad Branch, Islamic Azad University, Mashhad 9187147578, Iran
| | - Sabine Costagliola
- Institut de Recherche Interdisciplinaire en Biologie Humaine et Moleculaire, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Nicolas Deconinck
- Centre de Référence Neuromusculaire and Paediatric Neurology Department, Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles, 1020 Brussels, Belgium
| | - Hazim Kadhim
- Neuropathology Unit, Department of Anatomic Pathology and Reference Center for Neuromuscular Pathology, Brugmann University Hospital-Children's Hospital, Université Libre de Bruxelles, 1020 Brussels, Belgium
| | - Erica Macke
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Brendan C Lanpher
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA; Department of Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA
| | - Eric W Klee
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA; Department of Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA
| | - Anna Łusakowska
- Department of Neurology, Medical University of Warsaw, 02-091 Warsaw, Poland
| | | | - Andreas Hahn
- Department of Child Neurology, Justus-Liebig-University Giessen, 35390 Giessen, Germany
| | - Bertold Schrank
- Department of Neurology, DKD HELIOS Klinik Wiesbaden, 65191 Wiesbaden, Germany
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-8551, Japan
| | - Masashi Ogasawara
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-8551, Japan
| | - Rasha El Sherif
- Myo-Care Neuromuscular Center, Myo-Care National Foundation, Cairo 11865, Egypt
| | - Tanya Stojkovic
- APHP, Nord-Est/Ile-de-France Neuromuscular Reference Center, Myology Institute, Pitié-Salpêtrière Hospital, 75013 Paris, France; Sorbonne Université, INSERM, Center of Research in Myology, UMRS974, 75651 Paris Cedex 13, France
| | - Isabelle Nelson
- Sorbonne Université, INSERM, Center of Research in Myology, UMRS974, 75651 Paris Cedex 13, France
| | - Gisèle Bonne
- Sorbonne Université, INSERM, Center of Research in Myology, UMRS974, 75651 Paris Cedex 13, France
| | - Enzo Cohen
- Sorbonne Université, INSERM, Center of Research in Myology, UMRS974, 75651 Paris Cedex 13, France
| | - Anne Boland-Augé
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, 91057 Evry, France
| | - Jean-François Deleuze
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, 91057 Evry, France
| | - Yao Meng
- Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK
| | - Ana Töpf
- John Walton Muscular Dystrophy Research Centre, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 3BZ, UK
| | - Catheline Vilain
- Center of Human Genetics, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Christina A Pacak
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA; Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, MN 55455, USA; Department of Neurology, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | | | - Carsten G Bönnemann
- Neuromuscular and Neurogenetic Disorders of Childhood Section, Neurogenetics Branch, NINDS, NIH, Bethesda, MD 20892, USA
| | - Volker Straub
- John Walton Muscular Dystrophy Research Centre, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne NE1 3BZ, UK
| | - Penny A Handford
- Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK
| | - Isabelle Draper
- Molecular Cardiology Research Institute, Tufts Medical Center, Boston, MA 02111, USA
| | - Glenn A Walter
- Department of Physiology and Functional Genomics, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Peter B Kang
- Division of Pediatric Neurology, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL 32610, USA; Paul and Sheila Wellstone Muscular Dystrophy Center, University of Minnesota Medical School, Minneapolis, MN 55455, USA; Department of Neurology, University of Minnesota Medical School, Minneapolis, MN 55455, USA; Institute for Translational Neuroscience, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
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18
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Wu Y, Jin X, Zhang Y, Zheng J, Yang R. Genetic and epigenetic mechanisms in the development of congenital heart diseases. WORLD JOURNAL OF PEDIATRIC SURGERY 2021; 4:e000196. [DOI: 10.1136/wjps-2020-000196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 03/28/2021] [Accepted: 03/30/2021] [Indexed: 02/06/2023] Open
Abstract
Congenital heart disease (CHD) is the most common of congenital cardiovascular malformations associated with birth defects, and it results in significant morbidity and mortality worldwide. The classification of CHD is still elusive owing to the complex pathogenesis of CHD. Advances in molecular medicine have revealed the genetic basis of some heart anomalies. Genes associated with CHD might be modulated by various epigenetic factors. Thus, the genetic and epigenetic factors are gradually accepted as important triggers in the pathogenesis of CHD. However, few literatures have comprehensively elaborated the genetic and epigenetic mechanisms of CHD. This review focuses on the etiology of CHD from genetics and epigenetics to discuss the role of these factors in the development of CHD. The interactions between genetic and epigenetic in the pathogenesis of CHD are also elaborated. Chromosome abnormalities and gene mutations in genetics, and DNA methylations, histone modifications and on-coding RNAs in epigenetics are summarized in detail. We hope the summative knowledge of these etiologies may be useful for improved diagnosis and further elucidation of CHD so that morbidity and mortality of children with CHD can be reduced in the near future.
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19
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Shen W, Huang J, Wang Y. Biological Significance of NOTCH Signaling Strength. Front Cell Dev Biol 2021; 9:652273. [PMID: 33842479 PMCID: PMC8033010 DOI: 10.3389/fcell.2021.652273] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/23/2021] [Indexed: 12/12/2022] Open
Abstract
The evolutionarily conserved NOTCH signaling displays pleotropic functions in almost every organ system with a simple signaling axis. Different from many other signaling pathways that can be amplified via kinase cascades, NOTCH signaling does not contain any intermediate to amplify signal. Thus, NOTCH signaling can be activated at distinct signaling strength levels, disruption of which leads to various developmental disorders. Here, we reviewed mechanisms establishing different NOTCH signaling strengths, developmental processes sensitive to NOTCH signaling strength perturbation, and transcriptional regulations influenced by NOTCH signaling strength changes. We hope this could add a new layer of diversity to explain the pleotropic functions of NOTCH signaling pathway.
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Affiliation(s)
- Wei Shen
- Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, China
| | - Jiaxin Huang
- Center for Structural Biology, School of Life Sciences and School of Medicine, Tsinghua University, Beijing, China
| | - Yan Wang
- Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, China
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20
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Ristori T, Sjöqvist M, Sahlgren CM. Ex Vivo Models to Decipher the Molecular Mechanisms of Genetic Notch Cardiovascular Disorders. Tissue Eng Part C Methods 2021; 27:167-176. [PMID: 33403934 PMCID: PMC7984653 DOI: 10.1089/ten.tec.2020.0327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/04/2020] [Indexed: 12/13/2022] Open
Abstract
Notch is an evolutionary, conserved, cell-cell signaling pathway that is central to several biological processes, from tissue morphogenesis to homeostasis. It is therefore not surprising that several genetic mutations of Notch components cause inherited human diseases, especially cardiovascular disorders. Despite numerous efforts, current in vivo models are still insufficient to unravel the underlying mechanisms of these pathologies, hindering the development of utmost needed medical therapies. In this perspective review, we discuss the limitations of current murine models and outline how the combination of microphysiological systems (MPSs) and targeted computational models can lead to breakthroughs in this field. In particular, while MPSs enable the experimentation on human cells in controlled and physiological environments, in silico models can provide a versatile tool to translate the in vitro findings to the more complex in vivo setting. As a showcase example, we focus on Notch-related cardiovascular diseases, such as Alagille syndrome, Adams-Oliver syndrome, and cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). Impact statement In this review, a comprehensive overview of the limitations of current in vivo models of genetic Notch cardiovascular diseases is provided, followed by a discussion over the potential of microphysiological systems and computational models in overcoming these limitations and in potentiating drug testing and modeling of these pathologies.
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Affiliation(s)
- Tommaso Ristori
- Department of Biomedical Engineering, Technical University of Eindhoven, Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, USA
| | - Marika Sjöqvist
- Faculty of Science and Engineering, Biosciences, Åbo Akademi University, Turku, Finland
- Turku Bioscience Centre, Åbo Akademi University and University of Turku, Turku, Finland
| | - Cecilia M. Sahlgren
- Department of Biomedical Engineering, Technical University of Eindhoven, Eindhoven, The Netherlands
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
- Faculty of Science and Engineering, Biosciences, Åbo Akademi University, Turku, Finland
- Turku Bioscience Centre, Åbo Akademi University and University of Turku, Turku, Finland
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21
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Lin H, McBride KL, Garg V, Zhao MT. Decoding Genetics of Congenital Heart Disease Using Patient-Derived Induced Pluripotent Stem Cells (iPSCs). Front Cell Dev Biol 2021; 9:630069. [PMID: 33585486 PMCID: PMC7873857 DOI: 10.3389/fcell.2021.630069] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/04/2021] [Indexed: 12/20/2022] Open
Abstract
Congenital heart disease (CHD) is the most common cause of infant death associated with birth defects. Recent next-generation genome sequencing has uncovered novel genetic etiologies of CHD, from inherited and de novo variants to non-coding genetic variants. The next phase of understanding the genetic contributors of CHD will be the functional illustration and validation of this genome sequencing data in cellular and animal model systems. Human induced pluripotent stem cells (iPSCs) have opened up new horizons to investigate genetic mechanisms of CHD using clinically relevant and patient-specific cardiac cells such as cardiomyocytes, endothelial/endocardial cells, cardiac fibroblasts and vascular smooth muscle cells. Using cutting-edge CRISPR/Cas9 genome editing tools, a given genetic variant can be corrected in diseased iPSCs and introduced to healthy iPSCs to define the pathogenicity of the variant and molecular basis of CHD. In this review, we discuss the recent progress in genetics of CHD deciphered by large-scale genome sequencing and explore how genome-edited patient iPSCs are poised to decode the genetic etiologies of CHD by coupling with single-cell genomics and organoid technologies.
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Affiliation(s)
- Hui Lin
- Center for Cardiovascular Research, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, United States.,The Heart Center, Nationwide Children's Hospital, Columbus, OH, United States.,Division of Genetic and Genomic Medicine, Nationwide Children's Hospital, Columbus, OH, United States
| | - Kim L McBride
- Center for Cardiovascular Research, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, United States.,The Heart Center, Nationwide Children's Hospital, Columbus, OH, United States.,Division of Genetic and Genomic Medicine, Nationwide Children's Hospital, Columbus, OH, United States.,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Vidu Garg
- Center for Cardiovascular Research, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, United States.,The Heart Center, Nationwide Children's Hospital, Columbus, OH, United States.,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, United States.,Department of Molecular Genetics, The Ohio State University, Columbus, OH, United States
| | - Ming-Tao Zhao
- Center for Cardiovascular Research, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, United States.,The Heart Center, Nationwide Children's Hospital, Columbus, OH, United States.,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, United States
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22
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Stassen OMJA, Ristori T, Sahlgren CM. Notch in mechanotransduction - from molecular mechanosensitivity to tissue mechanostasis. J Cell Sci 2020; 133:133/24/jcs250738. [PMID: 33443070 DOI: 10.1242/jcs.250738] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Tissue development and homeostasis are controlled by mechanical cues. Perturbation of the mechanical equilibrium triggers restoration of mechanostasis through changes in cell behavior, while defects in these restorative mechanisms lead to mechanopathologies, for example, osteoporosis, myopathies, fibrosis or cardiovascular disease. Therefore, sensing mechanical cues and integrating them with the biomolecular cell fate machinery is essential for the maintenance of health. The Notch signaling pathway regulates cell and tissue fate in nearly all tissues. Notch activation is directly and indirectly mechanosensitive, and regulation of Notch signaling, and consequently cell fate, is integral to the cellular response to mechanical cues. Fully understanding the dynamic relationship between molecular signaling, tissue mechanics and tissue remodeling is challenging. To address this challenge, engineered microtissues and computational models play an increasingly large role. In this Review, we propose that Notch takes on the role of a 'mechanostat', maintaining the mechanical equilibrium of tissues. We discuss the reciprocal role of Notch in the regulation of tissue mechanics, with an emphasis on cardiovascular tissues, and the potential of computational and engineering approaches to unravel the complex dynamic relationship between mechanics and signaling in the maintenance of cell and tissue mechanostasis.
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Affiliation(s)
- Oscar M J A Stassen
- Faculty of Science and Engineering, Biosciences, Åbo Akademi University, 20500 Turku, Finland.,Turku Bioscience Centre, Åbo Akademi University and University of Turku, 20520 Turku, Finland.,Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Tommaso Ristori
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.,Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
| | - Cecilia M Sahlgren
- Faculty of Science and Engineering, Biosciences, Åbo Akademi University, 20500 Turku, Finland .,Turku Bioscience Centre, Åbo Akademi University and University of Turku, 20520 Turku, Finland.,Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
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23
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Matsumoto K, Luther KB, Haltiwanger RS. Diseases related to Notch glycosylation. Mol Aspects Med 2020; 79:100938. [PMID: 33341260 DOI: 10.1016/j.mam.2020.100938] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 12/15/2022]
Abstract
The Notch receptors are a family of transmembrane proteins that mediate direct cell-cell interactions and control numerous cell-fate specifications in humans. The extracellular domains of mammalian Notch proteins contain 29-36 tandem epidermal growth factor-like (EGF) repeats, most of which have O-linked glycan modifications: O-glucose added by POGLUT1, O-fucose added by POFUT1 and elongated by Fringe enzymes, and O-GlcNAc added by EOGT. The extracellular domain is also N-glycosylated. Mutations in the glycosyltransferases modifying Notch have been identified in several diseases, including Dowling-Degos Disease (haploinsufficiency of POFUT1 or POGLUT1), a form of limb-girdle muscular dystrophy (autosomal recessive mutations in POGLUT1), Spondylocostal Dysostosis 3 (autosomal recessive mutations in LFNG), Adams-Oliver syndrome (autosomal recessive mutations in EOGT), and some cancers (amplification, gain or loss-of-function of POFUT1, Fringe enzymes, POGLUT1, MGAT3). Here we review the characteristics of these diseases and potential molecular mechanisms.
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Affiliation(s)
- Kenjiroo Matsumoto
- Complex Carbohydrate Research Center, Department of Biochemistry and Molecular Biology, University of Georgia, 315 Riverbend Road, Athens, GA, 30602, USA
| | - Kelvin B Luther
- Complex Carbohydrate Research Center, Department of Biochemistry and Molecular Biology, University of Georgia, 315 Riverbend Road, Athens, GA, 30602, USA
| | - Robert S Haltiwanger
- Complex Carbohydrate Research Center, Department of Biochemistry and Molecular Biology, University of Georgia, 315 Riverbend Road, Athens, GA, 30602, USA.
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24
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De Zoysa P, Liu J, Toubat O, Choi J, Moon A, Gill PS, Duarte A, Sucov HM, Kumar SR. Delta-like ligand 4-mediated Notch signaling controls proliferation of second heart field progenitor cells by regulating Fgf8 expression. Development 2020; 147:dev185249. [PMID: 32778568 PMCID: PMC7502602 DOI: 10.1242/dev.185249] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 07/27/2020] [Indexed: 12/15/2022]
Abstract
The role played by the Notch pathway in cardiac progenitor cell biology remains to be elucidated. Delta-like ligand 4 (Dll4), the arterial-specific Notch ligand, is expressed by second heart field (SHF) progenitors at time-points that are crucial in SHF biology. Dll4-mediated Notch signaling is required for maintaining an adequate pool of SHF progenitors, such that Dll4 knockout results in a reduction in proliferation and an increase in apoptosis. A reduced SHF progenitor pool leads to an underdeveloped right ventricle (RV) and outflow tract (OFT). In its most severe form, there is severe RV hypoplasia and poorly developed OFT resulting in early embryonic lethality. In its milder form, the OFT is foreshortened and misaligned, resulting in a double outlet right ventricle. Dll4-mediated Notch signaling maintains Fgf8 expression by transcriptional regulation at the promoter level. Combined heterozygous knockout of Dll4 and Fgf8 demonstrates genetic synergy in OFT alignment. Exogenous supplemental Fgf8 rescues proliferation in Dll4 mutants in ex-vivo culture. Our results establish a novel role for Dll4-mediated Notch signaling in SHF biology. More broadly, our model provides a platform for understanding oligogenic inheritance that results in clinically relevant OFT malformations.
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Affiliation(s)
- Prashan De Zoysa
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Jiang Liu
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Omar Toubat
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Jongkyu Choi
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Anne Moon
- Department of Molecular and Functional Genomics, Geisinger Clinic, PA 17822, USA
| | - Parkash S Gill
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Antonio Duarte
- Centro Interdisciplinar de Investigação em Sanidade Animal, University of Lisbon, Department of Physiology, 1300-477 Lisboa, Portugal
| | - Henry M Sucov
- Department of Medicine, Medical University of South Carolina, Charleston, SC 29403, USA
| | - S Ram Kumar
- Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
- Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90027, USA
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25
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Qiao C, Richter GT, Pan W, Jin Y, Lin X. Extracranial arteriovenous malformations: from bedside to bench. Mutagenesis 2020; 34:299-306. [PMID: 31613971 DOI: 10.1093/mutage/gez028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 09/14/2019] [Indexed: 01/08/2023] Open
Abstract
Arteriovenous malformation (AVM) is defined as a fast-flow vascular anomaly that shunts blood from arteries directly to veins. This short circuit of blood flow contributes to progressive expansion of draining veins, resulting in ischaemia, tissue deformation and in some severe cases, congestive heart failure. Various medical interventions have been employed to treat AVM, however, management of which remains a huge challenge because of its high recurrence rate and lethal complications. Thus, understanding the underlying mechanisms of AVM development and progression will help direct discovery and a potential cure. Here, we summarize current findings in the field of extracranial AVMs with the aim to provide insight into their aetiology and molecular influences, in the hope to pave the way for future treatment.
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Affiliation(s)
- Congzhen Qiao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Gresham T Richter
- Center for Investigation of Congenital Anomalies of Vascular Development, Arkansas Vascular Biology Program, Arkansas Children's Hospital, Little Rock, AR, USA.,Department of Otolaryngology-Head and Neck Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA.,Division of Pediatric Otolaryngology, Arkansas Children's Hospital, Little Rock, AR, USA
| | - Weijun Pan
- Key Laboratory of Stem Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yunbo Jin
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoxi Lin
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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26
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Gratton R, Tricarico PM, Moltrasio C, Lima Estevão de Oliveira AS, Brandão L, Marzano AV, Zupin L, Crovella S. Pleiotropic Role of Notch Signaling in Human Skin Diseases. Int J Mol Sci 2020; 21:E4214. [PMID: 32545758 PMCID: PMC7353046 DOI: 10.3390/ijms21124214] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/09/2020] [Accepted: 06/11/2020] [Indexed: 02/07/2023] Open
Abstract
Notch signaling orchestrates the regulation of cell proliferation, differentiation, migration and apoptosis of epidermal cells by strictly interacting with other cellular pathways. Any disruption of Notch signaling, either due to direct mutations or to an aberrant regulation of genes involved in the signaling route, might lead to both hyper- or hypo-activation of Notch signaling molecules and of target genes, ultimately inducing the onset of skin diseases. The mechanisms through which Notch contributes to the pathogenesis of skin diseases are multiple and still not fully understood. So far, Notch signaling alterations have been reported for five human skin diseases, suggesting the involvement of Notch in their pathogenesis: Hidradenitis Suppurativa, Dowling Degos Disease, Adams-Oliver Syndrome, Psoriasis and Atopic Dermatitis. In this review, we aim at describing the role of Notch signaling in the skin, particularly focusing on the principal consequences associated with its alterations in these five human skin diseases, in order to reorganize the current knowledge and to identify potential cellular mechanisms in common between these pathologies.
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Affiliation(s)
- Rossella Gratton
- Institute for Maternal and Child Health—IRCCS “Burlo Garofolo”, 34137 Trieste, Italy; (R.G.); (L.Z.); (S.C.)
- Department of Medical Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy
| | - Paola Maura Tricarico
- Institute for Maternal and Child Health—IRCCS “Burlo Garofolo”, 34137 Trieste, Italy; (R.G.); (L.Z.); (S.C.)
| | - Chiara Moltrasio
- Dermatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (C.M.); (A.V.M.)
| | | | - Lucas Brandão
- Department of Pathology, Federal University of Pernambuco, Recife 50670-901, Brazil;
| | - Angelo Valerio Marzano
- Dermatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy; (C.M.); (A.V.M.)
| | - Luisa Zupin
- Institute for Maternal and Child Health—IRCCS “Burlo Garofolo”, 34137 Trieste, Italy; (R.G.); (L.Z.); (S.C.)
| | - Sergio Crovella
- Institute for Maternal and Child Health—IRCCS “Burlo Garofolo”, 34137 Trieste, Italy; (R.G.); (L.Z.); (S.C.)
- Department of Medical Surgical and Health Sciences, University of Trieste, 34149 Trieste, Italy
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27
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Alzahem T, Alsalamah AK, Mura M, Alsulaiman SM. A novel variant in DOCK6 gene associated with Adams-Oliver syndrome type 2. Ophthalmic Genet 2020; 41:377-380. [PMID: 32498638 DOI: 10.1080/13816810.2020.1776339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Adams-Oliver syndrome (AOS) is a rare, inherited multi-systemic malformation syndrome characterized by a combination of aplasia cutis congenita and transverse terminal limb defects along with variable involvement of the central nervous system, eyes, and cardiovascular system. AOS can be inherited as both autosomal-dominant and recessive traits. Pathogenic variants in the DOCK6, ARHGAP31, EOGT, RBPJ, DLL4, and NOTCH1 genes have been associated with AOS. PURPOSE To report a novel homozygous variant in the DOCK6 gene associated with Adams-Oliver syndrome type 2. MATERIALS AND METHODS Case report. RESULTS We report a case of a 4-month-old male who presented with microcephaly, global developmental delay, truncal hypotonia, and limb reduction defects. Ophthalmic examination revealed bilateral nystagmus and retinal detachment with mild cataractous changes in addition to retrolental plaque in the left eye. Next generation sequencing analysis identified a novel homozygous frameshift likely pathogenic variant (c.1269_1285dup (p.Arg429Glnfs*32)) in the DOCK6 gene. The constellation of the clinical findings and the genetic mutation were consistent with a diagnosis of AOS type 2. CONCLUSION The discovery of this new likely pathogenic variant enriches the genotypic spectrum of DOCK6 gene and contributes to genetic diagnosis and counseling of families with AOS. Neurologic and ocular findings appear to be consistent with AOS type 2 for which multidisciplinary clinical evaluation is crucial.
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Affiliation(s)
- Tariq Alzahem
- Vitreoretinal Division, King Khaled Eye Specialist Hospital , Riyadh, Saudi Arabia.,Ophthalmology Department, King Saud University , Riyadh, Saudi Arabia
| | - Abrar K Alsalamah
- Vitreoretinal Division, King Khaled Eye Specialist Hospital , Riyadh, Saudi Arabia
| | - Marco Mura
- Vitreoretinal Division, King Khaled Eye Specialist Hospital , Riyadh, Saudi Arabia
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28
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Pandey A, Niknejad N, Jafar-Nejad H. Multifaceted regulation of Notch signaling by glycosylation. Glycobiology 2020; 31:8-28. [PMID: 32472127 DOI: 10.1093/glycob/cwaa049] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/18/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022] Open
Abstract
To build a complex body composed of various cell types and tissues and to maintain tissue homeostasis in the postembryonic period, animals use a small number of highly conserved intercellular communication pathways. Among these is the Notch signaling pathway, which is mediated via the interaction of transmembrane Notch receptors and ligands usually expressed by neighboring cells. Maintaining optimal Notch pathway activity is essential for normal development, as evidenced by various human diseases caused by decreased and increased Notch signaling. It is therefore not surprising that multiple mechanisms are used to control the activation of this pathway in time and space. Over the last 20 years, protein glycosylation has been recognized as a major regulatory mechanism for Notch signaling. In this review, we will provide a summary of the various types of glycan that have been shown to modulate Notch signaling. Building on recent advances in the biochemistry, structural biology, cell biology and genetics of Notch receptors and the glycosyltransferases that modify them, we will provide a detailed discussion on how various steps during Notch activation are regulated by glycans. Our hope is that the current review article will stimulate additional research in the field of Notch glycobiology and will potentially be of benefit to investigators examining the contribution of glycosylation to other developmental processes.
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Affiliation(s)
| | | | - Hamed Jafar-Nejad
- Department of Molecular and Human Genetics.,Development, Disease Models & Therapeutics Graduate Program.,Genetics & Genomics Graduate Program, Baylor College of Medicine, Houston, TX 77030, USA
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29
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Alsulaiman AM, Alsulaiman HM, Almousa A, Alsulaiman SM. Adams Oliver syndrome: A mimicker of familial exudative vitreoretinopathy. Am J Ophthalmol Case Rep 2020; 19:100715. [PMID: 32420513 PMCID: PMC7217917 DOI: 10.1016/j.ajoc.2020.100715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/02/2020] [Accepted: 04/13/2020] [Indexed: 12/17/2022] Open
Abstract
Purpose To describe an infant with Adams Oliver syndrome (AOS) with ocular signs similar to familial exudative vitreoretinopathy. Observations A full-term female infant presented with a congenital scalp defect, hypoplasia of the fingers and toes along with a radial retinal fold in the right eye and tractional retinal detachment in the left eye. Fluorescein angiography findings included peripheral retinal nonperfusion, irregular vascular sprouting beyond the vascular-avascular junction, pinpoint areas of hyperfluorescence as well as late peripheral and posterior vascular leakage. The patient was clinically diagnosed with Adams Oliver syndrome based on the collective findings. Laser photocoagulation to the avascular retina was performed in both eyes which resulted in stabilization of the condition after 2 years of follow up. Conclusion and importance The ocular phenotype in AOS may be similar to familial exudative vitreoretinopathy. Therefore, suspicion of the diagnosis should prompt ophthalmic evaluation including fluorescein angiography to detect and possibly treat the ischemic retinopathy.
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Affiliation(s)
| | | | - Ahmad Almousa
- Department of Dermatology, Security Forces Hospital, Riyadh, Saudi Arabia
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30
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Huang S, Yang L, Zhao L, Xu R, Wu Y. Novel In-Frame Deletion Mutation in NOTCH1 in a Chinese Sporadic Case of Adams-Oliver Syndrome. DNA Cell Biol 2020; 39:783-789. [PMID: 32129674 DOI: 10.1089/dna.2019.5200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Adams-Oliver syndrome (AOS) is a rare hereditary disorder characterized by aplasia cutis congenita (ACC) and terminal transverse limb defects. The etiology of AOS has remained largely unknown, although mutations in the notch receptor 1 (NOTCH1) gene are most common genetic alteration associated with this disease. In this study, we aimed to identify the case of a 6-year-old boy, who presented with large ACC of the scalp and aortic valve stenosis, suggesting the possibility of AOS. Whole-exome sequencing identified a novel, de novo, in-frame deletion in the NOTCH1 gene (NOTCH1 c.1292_1294del, p.Asn431del) in the patient. The p.Asn431del variant was evaluated by several in silico analyses, which predicted that the mutant was likely to be pathogenic. In addition, molecular modeling with the PyMOL Molecular Graphics System suggested that the NOTCH1-N431del destabilizes calcium ion chelation, leading to decreased receptor-ligand binding efficiency. Quantitative reverse transcription PCR showed further significant downregulation of the Notch target genes, hes-related family bHLH transcription factor with YRPW motif 1 (HEY1) and hes family bHLH transcription factor 1 (HES1), suggesting that this mutation causes disease through dysregulation of the Notch signaling pathway. Our study provides evidence that the NOTCH1-N431del mutation is responsible for this case of AOS. To our knowledge, this is the first report of a patient with AOS caused by NOTCH1 mutation in Asia, and this information will be useful for providing the family with genetic counseling that can help to guide their future plans.
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Affiliation(s)
- Suqiu Huang
- Department of Pediatric Cardiology, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Ling Yang
- Department of Pediatric Cardiology, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Liqing Zhao
- Department of Pediatric Cardiology, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Rang Xu
- Scientific Research Center, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
| | - Yurong Wu
- Department of Pediatric Cardiology, Shanghai Jiaotong University School of Medicine, Shanghai, P.R. China
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31
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Notch Signaling in Skeletal Development, Homeostasis and Pathogenesis. Biomolecules 2020; 10:biom10020332. [PMID: 32092942 PMCID: PMC7072615 DOI: 10.3390/biom10020332] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 02/10/2020] [Accepted: 02/13/2020] [Indexed: 02/07/2023] Open
Abstract
Skeletal development is a complex process which requires the tight regulation of gene activation and suppression in response to local signaling pathways. Among these pathways, Notch signaling is implicated in governing cell fate determination, proliferation, differentiation and apoptosis of skeletal cells-osteoblasts, osteoclasts, osteocytes and chondrocytes. Moreover, human genetic mutations in Notch components emphasize the critical roles of Notch signaling in skeletal development and homeostasis. In this review, we focus on the physiological roles of Notch signaling in skeletogenesis, postnatal bone and cartilage homeostasis and fracture repair. We also discuss the pathological gain- and loss-of-function of Notch signaling in bone and cartilage, resulting in osteosarcoma and age-related degenerative diseases, such as osteoporosis and osteoarthritis. Understanding the physiological and pathological function of Notch signaling in skeletal tissues using animal models and human genetics will provide new insights into disease pathogenesis and offer novel approaches for the treatment of bone/cartilage diseases.
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Reichrath J, Reichrath S. Notch Pathway and Inherited Diseases: Challenge and Promise. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1218:159-187. [PMID: 32060876 DOI: 10.1007/978-3-030-34436-8_9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The evolutionary highly conserved Notch pathway governs many cellular core processes including cell fate decisions. Although it is characterized by a simple molecular design, Notch signaling, which first developed in metazoans, represents one of the most important pathways that govern embryonic development. Consequently, a broad variety of independent inherited diseases linked to defective Notch signaling has now been identified, including Alagille, Adams-Oliver, and Hajdu-Cheney syndromes, CADASIL (cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy), early-onset arteriopathy with cavitating leukodystrophy, lateral meningocele syndrome, and infantile myofibromatosis. In this review, we give a brief overview on molecular pathology and clinical findings in congenital diseases linked to the Notch pathway. Moreover, we discuss future developments in basic science and clinical practice that may emerge from recent progress in our understanding of the role of Notch in health and disease.
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Affiliation(s)
- Jörg Reichrath
- Department of Dermatology, The Saarland University Hospital, Homburg, Germany.
| | - Sandra Reichrath
- Department of Dermatology, The Saarland University Hospital, Homburg, Germany
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Urata Y, Takeuchi H. Effects of Notch glycosylation on health and diseases. Dev Growth Differ 2019; 62:35-48. [PMID: 31886522 DOI: 10.1111/dgd.12643] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 12/03/2019] [Accepted: 12/03/2019] [Indexed: 12/13/2022]
Abstract
Notch signaling is an evolutionarily conserved signaling pathway and is essential for cell-fate specification in metazoans. Dysregulation of Notch signaling results in various human diseases, including cardiovascular defects and cancer. In 2000, Fringe, a known regulator of Notch signaling, was discovered as a Notch-modifying glycosyltransferase. Since then, glycosylation-a post-translational modification involving literal sugars-on the Notch extracellular domain has been noted as a critical mechanism for the regulation of Notch signaling. Additionally, the presence of diverse O-glycans decorating Notch receptors has been revealed in the extracellular domain epidermal growth factor-like (EGF) repeats. Here, we concisely summarize the recent studies in the human diseases associated with aberrant Notch glycosylation.
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Affiliation(s)
- Yusuke Urata
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideyuki Takeuchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Dudoignon B, Huber C, Michot C, Di Rocco F, Girard M, Lyonnet S, Rio M, Rabia SH, Daire VC, Baujat G. Expanding the phenotype in Adams-Oliver syndrome correlating with the genotype. Am J Med Genet A 2019; 182:29-37. [PMID: 31654484 DOI: 10.1002/ajmg.a.61364] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 08/30/2019] [Accepted: 09/05/2019] [Indexed: 12/17/2022]
Abstract
RATIONALE Adams-Oliver syndrome (AOS) is a genetic disorder characterized by the association of aplasia cutis congenita (ACC), terminal transverse limb defect (TTLD), congenital cardiac malformation (CCM), and minor features, such as cutaneous, neurological, and hepatic abnormalities (HAs). The aim of the study is to emphasize phenotype-genotype correlations in AOS. METHODS We studied 29 AOS patients. We recorded retrospectively detailed phenotype data, including clinical examination, biological analyses, and imaging. The molecular analysis was performed through whole exome sequencing (WES). RESULTS Twenty-nine patients (100%) presented with ACC, the principal inclusion criteria in the study. Seventeen of twenty-one (81%) had cutis marmorata telangiectasia congenita, 16/26 (62%) had TTLD, 14/23 (61%) had CCM, 7/20 (35%) had HAs, and 9/27 (33%) had neurological findings. WES was performed in 25 patients. Fourteen of twenty-five (56%) had alterations in the genes already described in AOS. CCM and HAs are particularly associated with the NOTCH1 genotype. TTLD is present in patients with DOCK6 and EOGT alterations. Neurological findings of variable degree were associated sometimes with DOCK6 and NOTCH1 rarely with EOGT. CONCLUSION AOS is characterized by a clinical and molecular variability. It appears that degrees of genotype-phenotype correlations exist for patients with identified pathogenic mutations, underlining the need to undertake a systematic but adjusted multidisciplinary assessment.
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Affiliation(s)
- Benjamin Dudoignon
- AP-HP, Service de Génétique Clinique, Necker-Enfants malades University Hospital, Paris, France
| | - Celine Huber
- INSERM, UMR1163, Iimagine Institute, Paris, France.,AP-HP, Reference Center for Skeletal Dysplasia, Paris, France
| | - Caroline Michot
- AP-HP, Service de Génétique Clinique, Necker-Enfants malades University Hospital, Paris, France.,INSERM, UMR1163, Iimagine Institute, Paris, France.,AP-HP, Reference Center for Skeletal Dysplasia, Paris, France
| | | | - Muriel Girard
- AP-HP, Liver Unit, National Reference Center for Biliary Atresia and Genetic Cholestasis, INSERM U1151/CNRS UMR 8253, Institut Necker-Enfants malades (INEM), Assistance Publique Hopitaux de Paris, Necker-Enfants malades Hospital, Paris, France
| | - Stanislas Lyonnet
- AP-HP, Service de Génétique Clinique, Necker-Enfants malades University Hospital, Paris, France
| | - Marlène Rio
- AP-HP, Service de Génétique Clinique, Necker-Enfants malades University Hospital, Paris, France
| | - Smail Hadj Rabia
- AP-HP, Department of Dermatology, Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), INSERM U1163, Descartes-Sorbonne Paris Cité University, Imagine Institute, Necker-Enfants malades University Hospital, Paris, France
| | - Valérie Cormier Daire
- AP-HP, Service de Génétique Clinique, Necker-Enfants malades University Hospital, Paris, France.,INSERM, UMR1163, Iimagine Institute, Paris, France.,AP-HP, Reference Center for Skeletal Dysplasia, Paris, France
| | - Geneviève Baujat
- AP-HP, Service de Génétique Clinique, Necker-Enfants malades University Hospital, Paris, France.,INSERM, UMR1163, Iimagine Institute, Paris, France.,AP-HP, Reference Center for Skeletal Dysplasia, Paris, France
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Abstract
Systems medicine is a holistic approach to deciphering the complexity of human physiology in health and disease. In essence, a living body is constituted of networks of dynamically interacting units (molecules, cells, organs, etc) that underlie its collective functions. Declining resilience because of aging and other chronic environmental exposures drives the system to transition from a health state to a disease state; these transitions, triggered by acute perturbations or chronic disturbance, manifest as qualitative shifts in the interactions and dynamics of the disease-perturbed networks. Understanding health-to-disease transitions poses a high-dimensional nonlinear reconstruction problem that requires deep understanding of biology and innovation in study design, technology, and data analysis. With a focus on the principles of systems medicine, this Review discusses approaches for deciphering this biological complexity from a novel perspective, namely, understanding how disease-perturbed networks function; their study provides insights into fundamental disease mechanisms. The immediate goals for systems medicine are to identify early transitions to cardiovascular (and other chronic) diseases and to accelerate the translation of new preventive, diagnostic, or therapeutic targets into clinical practice, a critical step in the development of personalized, predictive, preventive, and participatory (P4) medicine.
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Affiliation(s)
- Kalliopi Trachana
- From the Institute for Systems Biology, Seattle, WA (K.T., R.B., G.G., N.D.P., S.H., L.E.H.)
| | - Rhishikesh Bargaje
- From the Institute for Systems Biology, Seattle, WA (K.T., R.B., G.G., N.D.P., S.H., L.E.H.)
| | - Gustavo Glusman
- From the Institute for Systems Biology, Seattle, WA (K.T., R.B., G.G., N.D.P., S.H., L.E.H.)
| | - Nathan D Price
- From the Institute for Systems Biology, Seattle, WA (K.T., R.B., G.G., N.D.P., S.H., L.E.H.)
| | - Sui Huang
- From the Institute for Systems Biology, Seattle, WA (K.T., R.B., G.G., N.D.P., S.H., L.E.H.).,Department of Biological Sciences, University of Calgary, Alberta, Canada (S.H.)
| | - Leroy E Hood
- From the Institute for Systems Biology, Seattle, WA (K.T., R.B., G.G., N.D.P., S.H., L.E.H.)
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Haploinsufficiency of the Notch Ligand DLL1 Causes Variable Neurodevelopmental Disorders. Am J Hum Genet 2019; 105:631-639. [PMID: 31353024 DOI: 10.1016/j.ajhg.2019.07.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023] Open
Abstract
Notch signaling is an established developmental pathway for brain morphogenesis. Given that Delta-like 1 (DLL1) is a ligand for the Notch receptor and that a few individuals with developmental delay, intellectual disability, and brain malformations have microdeletions encompassing DLL1, we hypothesized that insufficiency of DLL1 causes a human neurodevelopmental disorder. We performed exome sequencing in individuals with neurodevelopmental disorders. The cohort was identified using known Matchmaker Exchange nodes such as GeneMatcher. This method identified 15 individuals from 12 unrelated families with heterozygous pathogenic DLL1 variants (nonsense, missense, splice site, and one whole gene deletion). The most common features in our cohort were intellectual disability, autism spectrum disorder, seizures, variable brain malformations, muscular hypotonia, and scoliosis. We did not identify an obvious genotype-phenotype correlation. Analysis of one splice site variant showed an in-frame insertion of 12 bp. In conclusion, heterozygous DLL1 pathogenic variants cause a variable neurodevelopmental phenotype and multi-systemic features. The clinical and molecular data support haploinsufficiency as a mechanism for the pathogenesis of this DLL1-related disorder and affirm the importance of DLL1 in human brain development.
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Schröder KC, Duman D, Tekin M, Schanze D, Sukalo M, Meester J, Wuyts W, Zenker M. Adams–Oliver syndrome caused by mutations of the
EOGT
gene. Am J Med Genet A 2019; 179:2246-2251. [DOI: 10.1002/ajmg.a.61313] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/11/2019] [Accepted: 07/16/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Kim C. Schröder
- Institute of Human GeneticsUniversity Hospital Magdeburg Magdeburg Germany
| | - Duygu Duman
- Division of Pediatric Genetic Diseases, Department of PediatricsAnkara University Faculty of Medicine Ankara Turkey
- Department of AudiologyAnkara University Faculty of Health Sciences Ankara Turkey
| | - Mustafa Tekin
- Division of Pediatric Genetic Diseases, Department of PediatricsAnkara University Faculty of Medicine Ankara Turkey
- John P. Hussman Institute for Human Genomics and Dr. John T. Macdonald Foundation Department of Human Genetics, and Department of OtolaryngologyUniversity of Miami Miller School of Medicine Miami Florida
| | - Denny Schanze
- Institute of Human GeneticsUniversity Hospital Magdeburg Magdeburg Germany
| | - Maja Sukalo
- Institute of Human GeneticsUniversity Hospital Magdeburg Magdeburg Germany
| | - Josephina Meester
- Faculty of Medicine and Health Sciences, Center of Medical GeneticsUniversity of Antwerp and Antwerp University Hospital Antwerp Belgium
| | - Wim Wuyts
- Faculty of Medicine and Health Sciences, Center of Medical GeneticsUniversity of Antwerp and Antwerp University Hospital Antwerp Belgium
| | - Martin Zenker
- Institute of Human GeneticsUniversity Hospital Magdeburg Magdeburg Germany
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Antfolk D, Antila C, Kemppainen K, Landor SKJ, Sahlgren C. Decoding the PTM-switchboard of Notch. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:118507. [PMID: 31301363 PMCID: PMC7116576 DOI: 10.1016/j.bbamcr.2019.07.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/03/2019] [Accepted: 07/06/2019] [Indexed: 01/08/2023]
Abstract
The developmentally indispensable Notch pathway exhibits a high grade of pleiotropism in its biological output. Emerging evidence supports the notion of post-translational modifications (PTMs) as a modus operandi controlling dynamic fine-tuning of Notch activity. Although, the intricacy of Notch post-translational regulation, as well as how these modifications lead to multiples of divergent Notch phenotypes is still largely unknown, numerous studies show a correlation between the site of modification and the output. These include glycosylation of the extracellular domain of Notch modulating ligand binding, and phosphorylation of the PEST domain controlling half-life of the intracellular domain of Notch. Furthermore, several reports show that multiple PTMs can act in concert, or compete for the same sites to drive opposite outputs. However, further investigation of the complex PTM crosstalk is required for a complete understanding of the PTM-mediated Notch switchboard. In this review, we aim to provide a consistent and up-to-date summary of the currently known PTMs acting on the Notch signaling pathway, their functions in different contexts, as well as explore their implications in physiology and disease. Furthermore, we give an overview of the present state of PTM research methodology, and allude to a future with PTM-targeted Notch therapeutics.
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Affiliation(s)
- Daniel Antfolk
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
| | - Christian Antila
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
| | - Kati Kemppainen
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland
| | - Sebastian K-J Landor
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland.
| | - Cecilia Sahlgren
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland; Department of Biomedical Engineering, Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands.
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Ogawa M, Okajima T. Structure and function of extracellular O-GlcNAc. Curr Opin Struct Biol 2019; 56:72-77. [PMID: 30669087 DOI: 10.1016/j.sbi.2018.12.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 12/05/2018] [Indexed: 11/27/2022]
Abstract
Extracellular O-GlcNAc is a unique modification restricted to the epidermal growth factor (EGF) domain-containing glycoproteins. This O-GlcNAcylation is catalyzed by the EGF-domain specific O-GlcNAc transferase (EOGT), which is localized in the lumen of endoplasmic reticulum. In humans, EOGT is one of the causative genes of a congenital disease, Adams-Oliver syndrome. EOGT is highly expressed in endothelial cells and regulates vascular development and integrity by potentiating Delta-like ligand-mediated Notch signaling. In Drosophila, Eogt modifies Dumpy, an apical extracellular matrix glycoprotein, and affects Dumpy-dependent cell-matrix interaction. In this review, we summarize the current findings of the structure and functions of extracellular O-GlcNAc in animals.
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Affiliation(s)
- Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
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41
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Southgate L. Current opinion in the molecular genetics of Adams-Oliver syndrome. Expert Opin Orphan Drugs 2018. [DOI: 10.1080/21678707.2019.1559049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Laura Southgate
- Molecular and Clinical Sciences Research Institute, St George’s University of London, London, UK
- Department of Medical and Molecular Genetics, King’s College London, London, UK
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Tashima Y, Okajima T. Congenital diseases caused by defective O-glycosylation of Notch receptors. NAGOYA JOURNAL OF MEDICAL SCIENCE 2018; 80:299-307. [PMID: 30214079 PMCID: PMC6125653 DOI: 10.18999/nagjms.80.3.299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The Notch signaling pathway is highly conserved and essential for animal development. It is required for cell differentiation, survival, and proliferation. Regulation of Notch signaling is a crucial process for human health. Ligands initiate a signal cascade by binding to Notch receptors expressed on a neighboring cell. Notch receptors interact with ligands through their epidermal growth factor-like repeats (EGF repeats). Most EGF repeats are modified by O-glycosylation with residues such as O-linked N-acetylglucosamine (O-GlcNAc), O-fucose, and O-glucose. These O-glycan modifications are important for Notch function. Defects in O-glycosylation affect Notch-ligand interaction, trafficking of Notch receptors, and Notch stability on the cell surface. Although the roles of each modification are not fully understood, O-fucose is essential for binding of Notch receptors to their ligands. We reported an EGF domain-specific O-GlcNAc transferase (EOGT) localized in the endoplasmic reticulum. Mutations in genes encoding EOGT or NOTCH1 cause Adams-Oliver syndrome. Dysregulation of Notch signaling because of defects or mutations in Notch receptors or Notch signal-regulating proteins, such as glycosyltransferases, induce a variety of congenital disorders. In this review, we discuss O-glycosylation of Notch receptors and congenital human diseases caused by defects in O-glycans on Notch receptors.
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Affiliation(s)
- Yuko Tashima
- Department of Molecular & Cellular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tetsuya Okajima
- Department of Molecular & Cellular Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Abstract
Notch (Notch1 through 4) are transmembrane receptors that play a fundamental role in cell differentiation and function. Notch receptors are activated following interactions with their ligands in neighboring cells. There are five classic ligands termed Jagged (Jag)1 and Jag2 and Delta-like (Dll)1, Dll3, and Dll4. Recent work has established Notch as a signaling pathway that plays a critical role in the differentiation and function of cells of the osteoblast and osteoclast lineages and in skeletal development and bone remodeling. The effects of Notch are cell-context dependent, and the four Notch receptors carry out specific functions in the skeleton. Gain- and loss-of-function mutations of components of the Notch signaling pathway result in a variety of congenital disorders with significant craniofacial and skeletal manifestations. The Notch ligand Jag1 is a determinant of bone mineral density, and Notch plays a role in the early phases of fracture healing. Alterations in Notch signaling are associated with osteosarcoma and with the metastatic potential of carcinoma of the breast and of the prostate. Controlling Notch signaling could prove useful in diseases of Notch gain-of-function and in selected skeletal disorders. However, clinical data on agents that modify Notch signaling are not available. In conclusion, Notch signaling is a novel pathway that regulates skeletal homeostasis in health and disease.
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Affiliation(s)
- E Canalis
- Departments of Orthopaedic Surgery and Medicine, UConn Musculoskeletal Institute, UConn Health, 263 Farmington Avenue, Farmington, CT, 06030-4037, USA.
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Varshney S, Stanley P. Multiple roles for O-glycans in Notch signalling. FEBS Lett 2018; 592:3819-3834. [PMID: 30207383 DOI: 10.1002/1873-3468.13251] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 12/12/2022]
Abstract
Notch signalling regulates a plethora of developmental processes and is also essential for the maintenance of tissue homeostasis in adults. Therefore, fine-tuning of Notch signalling strength needs to be tightly regulated. Of key importance for the regulation of Notch signalling are O-fucose, O-GlcNAc and O-glucose glycans attached to the extracellular domain of Notch receptors. The EGF repeats of the Notch receptor extracellular domain harbour consensus sites for addition of the different types of O-glycan to Ser or Thr, which takes place in the endoplasmic reticulum. Studies from Drosophila to mammals have demonstrated the multifaceted roles of O-glycosylation in regulating Notch signalling. O-glycosylation modulates different aspects of Notch signalling including recognition by Notch ligands, the strength of ligand binding, Notch receptor trafficking, stability and activation at the cell surface. Defects in O-glycosylation of Notch receptors give rise to pathologies in humans. This Review summarizes the nature of the O-glycans on Notch receptors and their differential effects on Notch signalling.
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Affiliation(s)
- Shweta Varshney
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Pamela Stanley
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
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Giaimo BD, Borggrefe T. Introduction to Molecular Mechanisms in Notch Signal Transduction and Disease Pathogenesis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1066:3-30. [DOI: 10.1007/978-3-319-89512-3_1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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46
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Meester JAN, Sukalo M, Schröder KC, Schanze D, Baynam G, Borck G, Bramswig NC, Duman D, Gilbert-Dussardier B, Holder-Espinasse M, Itin P, Johnson DS, Joss S, Koillinen H, McKenzie F, Morton J, Nelle H, Reardon W, Roll C, Salih MA, Savarirayan R, Scurr I, Splitt M, Thompson E, Titheradge H, Travers CP, Van Maldergem L, Whiteford M, Wieczorek D, Vandeweyer G, Trembath R, Van Laer L, Loeys BL, Zenker M, Southgate L, Wuyts W. Elucidating the genetic architecture of Adams-Oliver syndrome in a large European cohort. Hum Mutat 2018; 39:1246-1261. [PMID: 29924900 PMCID: PMC6175364 DOI: 10.1002/humu.23567] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 06/15/2018] [Accepted: 06/18/2018] [Indexed: 01/08/2023]
Abstract
Adams–Oliver syndrome (AOS) is a rare developmental disorder, characterized by scalp aplasia cutis congenita (ACC) and transverse terminal limb defects (TTLD). Autosomal dominant forms of AOS are linked to mutations in ARHGAP31, DLL4, NOTCH1 or RBPJ, while DOCK6 and EOGT underlie autosomal recessive inheritance. Data on the frequency and distribution of mutations in large cohorts are currently limited. The purpose of this study was therefore to comprehensively examine the genetic architecture of AOS in an extensive cohort. Molecular diagnostic screening of 194 AOS/ACC/TTLD probands/families was conducted using next‐generation and/or capillary sequencing analyses. In total, we identified 63 (likely) pathogenic mutations, comprising 56 distinct and 22 novel mutations, providing a molecular diagnosis in 30% of patients. Taken together with previous reports, these findings bring the total number of reported disease variants to 63, with a diagnostic yield of 36% in familial cases. NOTCH1 is the major contributor, underlying 10% of AOS/ACC/TTLD cases, with DLL4 (6%), DOCK6 (6%), ARHGAP31 (3%), EOGT (3%), and RBPJ (2%) representing additional causality in this cohort. We confirm the relevance of genetic screening across the AOS/ACC/TTLD spectrum, highlighting preliminary but important genotype–phenotype correlations. This cohort offers potential for further gene identification to address missing heritability.
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Affiliation(s)
- Josephina A N Meester
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Maja Sukalo
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Kim C Schröder
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Denny Schanze
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Gareth Baynam
- Genetic Services of Western Australia and the Western Australian Register of Developmental Anomalies, King Edward Memorial Hospital, Perth, Australia.,Telethon Kids Institute, Perth, Australia.,School of Paediatrics and Child Health, University of Western Australia, Perth, Australia
| | - Guntram Borck
- Institute of Human Genetics, University of Ulm, Ulm, Germany
| | - Nuria C Bramswig
- Institut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
| | - Duygu Duman
- Division of Pediatric Genetics, Ankara University School of Medicine, Ankara, Turkey
| | | | - Muriel Holder-Espinasse
- Guy's Regional Genetics Service, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Peter Itin
- Department of Dermatology, Basel University Hospital, Basel, Switzerland
| | - Diana S Johnson
- Department of Clinical Genetics, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom
| | - Shelagh Joss
- West of Scotland Clinical Genetics Service, Queen Elizabeth University Hospital, Glasgow, United Kingdom
| | - Hannele Koillinen
- Department of Clinical Genetics, Helsinki University Hospital, Helsinki, Finland
| | - Fiona McKenzie
- Genetic Services of Western Australia, King Edward Memorial Hospital for Women, Subiaco, Australia
| | - Jenny Morton
- West Midlands Regional Clinical Genetics Service and Birmingham Health Partners, Birmingham Women's Hospital NHS Foundation Trust, Birmingham, United Kingdom
| | - Heike Nelle
- MVZ für Pränatalmedizin und Genetik, Nürnberg, Germany
| | - Willie Reardon
- Clinical Genetics, National Maternity Hospital, Dublin, Ireland
| | - Claudia Roll
- Abteilung Neonatologie und Pädiatrische Intensivmedizin, Vestische Kinder- und Jugendklinik Datteln, Universität Witten/Herdecke, Datteln, Germany
| | - Mustafa A Salih
- Division of Pediatric Neurology, Department of Pediatrics, King Khalid University Hospital and College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Ravi Savarirayan
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, and the University of Melbourne, Melbourne, Australia
| | - Ingrid Scurr
- Bristol Genetics Service, University Hospitals Bristol NHS Foundation Trust, St Michael's Hospital, Bristol, United Kingdom
| | - Miranda Splitt
- Northern Genetics Service, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Elizabeth Thompson
- South Australian Clinical Genetics Service, North Adelaide, South Australia, Australia, SA Clinical Genetics Service, SA Pathology at the Women's and Children's Hospital, North Adelaide, SA, Australia.,School of Medicine, University of Adelaide, North Terrace, Adelaide, SA, Australia
| | - Hannah Titheradge
- West Midlands Regional Clinical Genetics Service and Birmingham Health Partners, Birmingham Women's Hospital NHS Foundation Trust, Birmingham, United Kingdom
| | - Colm P Travers
- Division of Neonatology, University of Alabama at Birmingham, Birmingham, USA
| | | | - Margo Whiteford
- West of Scotland Genetic Services, Queen Elizabeth University Hospital, Glasgow, United Kingdom
| | - Dagmar Wieczorek
- Institute of Human Genetics, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Geert Vandeweyer
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Richard Trembath
- Division of Genetics & Molecular Medicine, King's College London, Faculty of Life Sciences & Medicine, Guy's Hospital, London, United Kingdom
| | - Lut Van Laer
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Bart L Loeys
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
| | - Martin Zenker
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Laura Southgate
- Division of Genetics & Molecular Medicine, King's College London, Faculty of Life Sciences & Medicine, Guy's Hospital, London, United Kingdom.,Molecular and Clinical Sciences Research Institute, St George's University of London, London, United Kingdom
| | - Wim Wuyts
- Center of Medical Genetics, University of Antwerp and Antwerp University Hospital, Antwerp, Belgium
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Meester J, Verstraeten A, Alaerts M, Schepers D, Van Laer L, Loeys B. Overlapping but distinct roles for NOTCH receptors in human cardiovascular disease. Clin Genet 2018; 95:85-94. [DOI: 10.1111/cge.13382] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/10/2018] [Accepted: 05/11/2018] [Indexed: 02/06/2023]
Affiliation(s)
- J.A.N. Meester
- Centre of Medical GeneticsUniversity of Antwerp and Antwerp University Hospital Antwerp Belgium
| | - A. Verstraeten
- Centre of Medical GeneticsUniversity of Antwerp and Antwerp University Hospital Antwerp Belgium
| | - M. Alaerts
- Centre of Medical GeneticsUniversity of Antwerp and Antwerp University Hospital Antwerp Belgium
| | - D. Schepers
- Centre of Medical GeneticsUniversity of Antwerp and Antwerp University Hospital Antwerp Belgium
| | - L. Van Laer
- Centre of Medical GeneticsUniversity of Antwerp and Antwerp University Hospital Antwerp Belgium
| | - B.L. Loeys
- Centre of Medical GeneticsUniversity of Antwerp and Antwerp University Hospital Antwerp Belgium
- Department of GeneticsRadboud University Medical Center Nijmegen The Netherlands
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Handford PA, Korona B, Suckling R, Redfield C, Lea SM. Structural Insights into Notch Receptor-Ligand Interactions. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1066:33-46. [PMID: 30030820 DOI: 10.1007/978-3-319-89512-3_2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Pioneering cell aggregation experiments from the Artavanis-Tsakonas group in the late 1980's localized the core ligand recognition sequence in the Drosophila Notch receptor to epidermal growth factor-like (EGF) domains 11 and 12. Since then, advances in protein expression, structure determination methods and functional assays have enabled us to define the molecular basis of the core receptor/ligand interaction and given new insights into the architecture of the Notch complex at the cell surface. We now know that Notch EGF11 and 12 interact with the Delta/Serrate/LAG-2 (DSL) and C2 domains of ligand and that membrane-binding, together with additional protein-protein interactions outside the core recognition domains, are likely to fine-tune generation of the Notch signal. Furthermore, structure determination of O-glycosylated variants of Notch alone or in complex with receptor fragments, has shown that these sugars contribute directly to the binding interface, as well as to stabilizing intra-molecular domain structure, providing some mechanistic insights into the observed modulatory effects of O-glycosylation on Notch activity.Future challenges lie in determining the complete extracellular architecture of ligand and receptor in order to understand (i) how Notch/ligand complexes may form at the cell surface in response to physiological cues, (ii) the role of lipid binding in stabilizing the Notch/ligand complex, (iii) the impact of O-glycosylation on binding and signalling and (iv) to dissect the different pathologies that arise as a consequence of mutations that affect proteins involved in the Notch pathway.
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Affiliation(s)
- Penny A Handford
- Department of Biochemistry, University of Oxford, Oxford, OX1 3RE, UK.
| | - Boguslawa Korona
- Department of Biochemistry, University of Oxford, Oxford, OX1 3RE, UK
| | - Richard Suckling
- Sir William Dunn School of Pathology, University of Oxford, Oxford, OX1 3RE, UK
| | | | - Susan M Lea
- Sir William Dunn School of Pathology, University of Oxford, Oxford, OX1 3RE, UK
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Salazar JL, Yamamoto S. Integration of Drosophila and Human Genetics to Understand Notch Signaling Related Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1066:141-185. [PMID: 30030826 PMCID: PMC6233323 DOI: 10.1007/978-3-319-89512-3_8] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Notch signaling research dates back to more than one hundred years, beginning with the identification of the Notch mutant in the fruit fly Drosophila melanogaster. Since then, research on Notch and related genes in flies has laid the foundation of what we now know as the Notch signaling pathway. In the 1990s, basic biological and biochemical studies of Notch signaling components in mammalian systems, as well as identification of rare mutations in Notch signaling pathway genes in human patients with rare Mendelian diseases or cancer, increased the significance of this pathway in human biology and medicine. In the 21st century, Drosophila and other genetic model organisms continue to play a leading role in understanding basic Notch biology. Furthermore, these model organisms can be used in a translational manner to study underlying mechanisms of Notch-related human diseases and to investigate the function of novel disease associated genes and variants. In this chapter, we first briefly review the major contributions of Drosophila to Notch signaling research, discussing the similarities and differences between the fly and human pathways. Next, we introduce several biological contexts in Drosophila in which Notch signaling has been extensively characterized. Finally, we discuss a number of genetic diseases caused by mutations in genes in the Notch signaling pathway in humans and we expand on how Drosophila can be used to study rare genetic variants associated with these and novel disorders. By combining modern genomics and state-of-the art technologies, Drosophila research is continuing to reveal exciting biology that sheds light onto mechanisms of disease.
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Affiliation(s)
- Jose L Salazar
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX, USA
| | - Shinya Yamamoto
- Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Houston, TX, USA.
- Program in Developmental Biology, BCM, Houston, TX, USA.
- Department of Neuroscience, BCM, Houston, TX, USA.
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX, USA.
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Harvey BM, Haltiwanger RS. Regulation of Notch Function by O-Glycosylation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1066:59-78. [PMID: 30030822 DOI: 10.1007/978-3-319-89512-3_4] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The Notch receptor initiates a unique intercellular signaling pathway that is evolutionarily conserved across all metazoans and contributes to the development and maintenance of numerous tissues. Consequently, many diseases result from aberrant Notch signaling. Emerging roles for Notch in disease are being uncovered as studies reveal new information regarding various components of this signaling pathway. Notch activity is regulated at several levels, but O-linked glycosylation of Epidermal Growth Factor (EGF) repeats in the Notch extracellular domain has emerged as a major regulator that, depending on context, can increase or decrease Notch activity. Three types of O-linked glycosylation occur at consensus sequences found within the EGF repeats of Notch: O-fucosylation, O-glucosylation, and O-GlcNAcylation. Recent studies have investigated the site occupancy of these types of glycosylation and also defined specific roles for these glycans on Notch structure and function. Nevertheless, there are many functional aspects to each type of O-glycosylation that remain unclear. Here, we will discuss molecular mechanisms of how O-glycosylation regulates Notch signaling and describe disorders associated with defects in Notch O-glycosylation.
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Affiliation(s)
- Beth M Harvey
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA.,Present Address: Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Robert S Haltiwanger
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA. .,Complex Carbohydrate Research Center, University of Georgia, Athens, GA, USA.
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