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Lu S, Liang S, Wu Y, Liu J, Lin L, Huang G, Ning H. Mannose phosphate isomerase gene mutation leads to a congenital disorder of glycosylation: A rare case report and literature review. Front Pediatr 2023; 11:1150367. [PMID: 37124179 PMCID: PMC10130505 DOI: 10.3389/fped.2023.1150367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/13/2023] [Indexed: 05/02/2023] Open
Abstract
We report the case of a 2-year-old girl who was diagnosed with Mannose-6-phosphate isomerase-congenital disorder of glycosylation (MPI-CDG) and provide a review of the relevant literature. The young girl presented with recurrent unexplained diarrhea, vomiting, hypoproteinemia, and elevated liver transaminases. Whole-exome sequencing revealed that the patient had compound heterozygous mutations in the MPI gene (NM_0024). An exon 4 (c.455G > T, p.R152l) mutation was inherited from the mother and an exon 7 (c.884G > A, p.R295H) mutation from the father. One week after the start of mannose treatment, the vomiting and diarrhea symptoms disappeared completely and did not show any side effects. We also provide a brief review of the relevant literature. Including the present case, a total of 52 patients from hospitals across 17 countries were diagnosed with MPI-CDG. Age at disease onset ranged from birth to 15 years, with an onset under 2 years in most patients (43/50). Overall, patients presented with at least one or more of the following symptoms: chronic diarrhea (41/46), vomiting (23/27), hepatomegaly (39/44), hepatic fibrosis (20/37), protein-losing enteropathy (30/36), elevated serum transaminases (24/34), hyperinsulinemic-hypoglycemia (24/34), hypoalbuminemia (33/38), prolonged coagulation (26/30), splenomegaly (13/21), non-pitting edema (14/20), failure to thrive (13/36), portal hypertension (4/9), epilepsy (2/17), thrombosis (12/14), and abnormally elevated leukocytes (5). None of the patients was reported to have an intellectual disability (0/28). The majority of patients (26/30) showed clinical symptoms, and laboratory results improved after oral mannose administration. Our findings suggest that MPI-CDG should be considered in children with unexplained recurrent digestive and endocrine systems involvement, and gene examination should be performed immediately to obtain a definite diagnosis in order to begin treatment in a timely manner.
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Morrison JK, DeRossi C, Alter IL, Nayar S, Giri M, Zhang C, Cho JH, Chu J. Single-cell transcriptomics reveals conserved cell identities and fibrogenic phenotypes in zebrafish and human liver. Hepatol Commun 2022; 6:1711-1724. [PMID: 35315595 PMCID: PMC9234649 DOI: 10.1002/hep4.1930] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 01/31/2022] [Accepted: 02/13/2022] [Indexed: 12/16/2022] Open
Abstract
The mechanisms underlying liver fibrosis are multifaceted and remain elusive with no approved antifibrotic treatments available. The adult zebrafish has been an underutilized tool to study liver fibrosis. We aimed to characterize the single-cell transcriptome of the adult zebrafish liver to determine its utility as a model for studying liver fibrosis. We used single-cell RNA sequencing (scRNA-seq) of adult zebrafish liver to study the molecular and cellular dynamics at a single-cell level. We performed a comparative analysis to scRNA-seq of human liver with a focus on hepatic stellate cells (HSCs), the driver cells in liver fibrosis. scRNA-seq reveals transcriptionally unique populations of hepatic cell types that comprise the zebrafish liver. Joint clustering with human liver scRNA-seq data demonstrates high conservation of transcriptional profiles and human marker genes in zebrafish. Human and zebrafish HSCs show conservation of transcriptional profiles, and we uncover collectin subfamily member 11 (colec11) as a novel, conserved marker for zebrafish HSCs. To demonstrate the power of scRNA-seq to study liver fibrosis using zebrafish, we performed scRNA-seq on our zebrafish model of a pediatric liver disease with mutation in mannose phosphate isomerase (MPI) and characteristic early liver fibrosis. We found fibrosis signaling pathways and upstream regulators conserved across MPI-depleted zebrafish and human HSCs. CellPhoneDB analysis of zebrafish transcriptome identified neuropilin 1 as a potential driver of liver fibrosis. Conclusion: This study establishes the first scRNA-seq atlas of the adult zebrafish liver, highlights the high degree of similarity to human liver, and strengthens its value as a model to study liver fibrosis.
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Affiliation(s)
- Joshua K Morrison
- Department of PediatricsIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Charles DeRossi
- Department of PediatricsIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Isaac L Alter
- Department of PediatricsIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Shikha Nayar
- Department of Genetics and Genomic SciencesIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Mamta Giri
- The Charles Bronfman Institute of Personalized MedicineIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Chi Zhang
- Department of Cell BiologyAlbert Einstein College of MedicineNew YorkNew YorkUSA
| | - Judy H Cho
- The Charles Bronfman Institute of Personalized MedicineIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Jaime Chu
- Department of PediatricsIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
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3
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Aoki K, Kumagai T, Ranzinger R, Bergmann C, Camus A, Tiemeyer M. Serum N-Glycome Diversity in Teleost and Chondrostrean Fishes. Front Mol Biosci 2021; 8:778383. [PMID: 34859056 PMCID: PMC8631502 DOI: 10.3389/fmolb.2021.778383] [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: 09/16/2021] [Accepted: 10/22/2021] [Indexed: 11/13/2022] Open
Abstract
Recent advances in carbohydrate chemistry, chemical biology, and mass spectrometric techniques have opened the door to rapid progress in uncovering the function and diversity of glycan structures associated with human health and disease. These strategies can be equally well applied to advance non-human health care research. To date, the glycomes of only a handful of non-human, non-domesticated vertebrates have been analyzed in depth due to the logistic complications associated with obtaining or handling wild-caught or farm-raised specimens. In contrast, the last 2 decades have seen advances in proteomics, glycoproteomics, and glycomics that have significantly advanced efforts to identify human serum/plasma biomarkers for various diseases. In this study, we investigated N-glycan structural diversity in serum harvested from five cultured fish species. This biofluid is a useful starting point for glycomic analysis because it is rich in glycoproteins, can be acquired in a sustainable fashion, and its contents reflect dynamic physiologic changes in the organism. Sera acquired from two chondrostrean fish species, the Atlantic sturgeon and shortnose sturgeon, and three teleost fish species, the Atlantic salmon, Arctic char, and channel catfish, were delipidated by organic extraction and the resulting protein-rich preparations sequentially treated with trypsin and PNGaseF to generate released N-glycans for structural analysis. Released N-glycans were analyzed as their native or permethylated forms by nanospray ionization mass spectrometry in negative or positive mode. While the basic biosynthetic pathway that initiates the production of glycoprotein glycan core structures is well-conserved across the teleost fish species examined in this study, species-specific structural differences were detected across the five organisms in terms of their monosaccharide composition, sialylation pattern, fucosylation, and degree of O-acetylation. Our methods and results provide new contributions to a growing library of datasets describing fish N-glycomes that can eventually establish species-normative baselines for assessing N-glycosylation dynamics associated with pathogen invasion, environmental stress, and fish immunologic responses.
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Affiliation(s)
- Kazuhiro Aoki
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, United States
| | - Tadahiro Kumagai
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, United States.,Procter & Gamble, Takasaki, Japan
| | - René Ranzinger
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, United States
| | - Carl Bergmann
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, United States
| | - Alvin Camus
- College of Veterinary Medicine, University of Georgia, Athens, GA, United States
| | - Michael Tiemeyer
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, United States
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Lebredonchel E, Duvet S, Douillard C, Foulquier F, Klein A. Variation of the serum N-glycosylation during the pregnancy of a MPI-CDG patient. JIMD Rep 2021; 62:22-29. [PMID: 34765394 PMCID: PMC8574185 DOI: 10.1002/jmd2.12247] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/23/2021] [Accepted: 08/25/2021] [Indexed: 11/22/2022] Open
Abstract
For the first time the glycosylation of a patient with a MPI-CDG during pregnancy is monitored. MPI-CDG, is characterised by a deficiency in mannose-6-phosphate isomerase (MPI) leading to a reduced pool of glycosylation precursors, impairing the biosynthesis of N-glycans leading to N-glycosylation defects. The abnormal N-glycosylation profile with an elevation of asialotransferrin and disialotransferrin, typical of CDG type I, is assessable by transferrin isoelectrofocusing. Oral D-mannose supplementation for MPI-CDG patients has been widely used and improves clinical manifestations. The glycosylation of a MPI-CDG patient during pregnancy without mannose supplementation was studied using carbohydrate deficient transferrin (CDT) assay, transferrin isoelectrofocusing (IEF) and mass spectrometry of total serum N-glycans. A general improvement of the glycosylation profile of the patient due to a better transfer of the glycan precursors as well as an increase of the triantennary glycans (and sialylation) was observed. In conclusion, in the absence of mannose supplementation, the previously observed glycosylation abnormality of the MPI-CDG patient was corrected. The molecular mechanism underlying this N-glycosylation rescue during MPI-CDG pregnancy further needs to be investigated.
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Affiliation(s)
- Elodie Lebredonchel
- UGSF—Unité de Glycobiologie Structurale et Fonctionnelle, UMR 8576Université de Lille, CNRSLilleFrance
- Pôle Biologie Pathologie Génétique, Institut de Biochimie et de Biologie Moléculaire, UAM de GlycopathologiesUniversité de Lille, CHU LilleLilleFrance
| | - Sandrine Duvet
- UGSF—Unité de Glycobiologie Structurale et Fonctionnelle, UMR 8576Université de Lille, CNRSLilleFrance
| | - Claire Douillard
- Centre de Référence des Maladies Héréditaires du Métabolisme, Hôpital HuriezCHU de Lille, Département d'Endocrinologie et MétabolismeLilleFrance
| | - François Foulquier
- UGSF—Unité de Glycobiologie Structurale et Fonctionnelle, UMR 8576Université de Lille, CNRSLilleFrance
| | - André Klein
- UGSF—Unité de Glycobiologie Structurale et Fonctionnelle, UMR 8576Université de Lille, CNRSLilleFrance
- Pôle Biologie Pathologie Génétique, Institut de Biochimie et de Biologie Moléculaire, UAM de GlycopathologiesUniversité de Lille, CHU LilleLilleFrance
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Mazlan MA, Isa MLM, Ibrahim M. A high mannose concentration is well tolerated by colorectal adenocarcinoma and melanoma cells but toxic to normal human gingival fibroblast: an in vitro investigation. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2020. [DOI: 10.1186/s43042-020-00109-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The primary cause of cancer is gene mutation which allows the growth of abnormal and damaged cells. Nutrition is one of the key factors that either increases or decreases the risk of cancer. Mannose has been found in many fruits such as oranges, apples and berries. Mannose has been linked to increase the risk factors or potential therapeutic for cancers. However, insufficient information is available on the effects of high mannose concentration on the normal and cancer cell lines. This study aimed to evaluate the viability patterns of human cancer and normal cell lines treated with mannose. Human gingival fibroblast (HGF), skin malignant melanoma (A375) and colorectal adenocarcinoma (HT29) cell lines were cultured and treated with additional mannose in three respective concentrations: 1 mg/ml, 5 mg/ml and 10 mg/ml. Then, cell viability was measured using an MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide)-assay.
Results
The HGF cells’ percentage pattern of viability showed a rapid decline of nearly 95% on the third day of treatment. A375 cells were able to survive in high mannose condition as the cell viability percentage was at the highest value on Day 5. Meanwhile, HT29 cells showed declining cell viability pattern when treated with mannose. The data exhibited significance; the p value was less than 0.001.
Conclusions
High mannose concentration can be toxic to HGF. In addition, A375 is adaptive to mannose at all concentrations in which it shares the same pattern with the untreated group. However, the cell viability pattern for HT29 cell is declining.
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Girard M, Douillard C, Debray D, Lacaille F, Schiff M, Vuillaumier-Barrot S, Dupré T, Fabre M, Damaj L, Kuster A, Torre S, Mention K, McLin V, Dobbelaere D, Borgel D, Bauchard E, Seta N, Bruneel A, De Lonlay P. Long term outcome of MPI-CDG patients on D-mannose therapy. J Inherit Metab Dis 2020; 43:1360-1369. [PMID: 33098580 DOI: 10.1002/jimd.12289] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/27/2020] [Accepted: 07/15/2020] [Indexed: 11/10/2022]
Abstract
Mannose phosphate isomerase MPI-CDG (formerly CDG-1b) is a potentially fatal inherited metabolic disease which is readily treatable with oral D-mannose. We retrospectively reviewed long-term outcomes of patients with MPI-CDG, all but one of whom were treated with D-mannose. Clinical, biological, and histological data were reviewed at diagnosis and on D-mannose treatment. Nine patients were diagnosed with MPI-CDG at a median age of 3 months. The presenting symptoms were diarrhea (n = 9), hepatomegaly (n = 9), hypoglycemia (n = 8), and protein loosing enteropathy (n = 7). All patients survived except the untreated one who died at 2 years of age. Oral D-mannose was started in eight patients at a median age of 7 months (mean 38 months), with a median follow-up on treatment of 14 years 9 months (1.5-20 years). On treatment, two patients developed severe portal hypertension, two developed venous thrombosis, and 1 displayed altered kidney function. Poor compliance with D-mannose was correlated with recurrence of diarrhea, thrombosis, and abnormal biological parameters including coagulation factors and transferrin profiles. Liver fibrosis persisted despite treatment, but two patients showed improved liver architecture during follow-up. This study highlights (i) the efficacy and safety of D-mannose treatment with a median follow-up on treatment of almost 15 years (ii) the need for life-long treatment (iii) the risk of relapse with poor compliance, (iii) the importance of portal hypertension screening (iv) the need to be aware of venous and renal complications in adulthood.
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Affiliation(s)
- Muriel Girard
- Paediatic Liver Unit, National Reference Center for Biliary Atresia and Genetic Cholestasis and French Network for Rare Liver Disease (Filfoie) Necker-Enfants-Malades University Hospital, APHP, Paris, France
- Inserm U1151, Institut Necker Enfants-Malades, Paris, France
- Université de Paris, Paris, France
| | - Claire Douillard
- Endocrinology and Metabolism department, Reference Metabolism Center of inborn metabolic diseases, Lille University Hospital, Paris, France
| | - Dominique Debray
- Paediatic Liver Unit, National Reference Center for Biliary Atresia and Genetic Cholestasis and French Network for Rare Liver Disease (Filfoie) Necker-Enfants-Malades University Hospital, APHP, Paris, France
- Université de Paris, Paris, France
| | - Florence Lacaille
- Department of Gastroenterology-Hepatology-Nutrition, Necker-Enfants-Malades University Hospital, APHP, Paris, France
| | - Manuel Schiff
- Université de Paris, Paris, France
- Reference Center of inherited Metabolic Diseases, Necker-Enfants-Malades University hospital, APHP, Paris, France
- Inserm U1163, Institut Imagine, Paris, France
| | - Sandrine Vuillaumier-Barrot
- Université de Paris, Paris, France
- Biochemistry and Genetic Department, AP-HP, Bichat Hospital, Paris, France
- Centre de recherche sur l'inflammation, Inserm U1149, Paris, France
| | - Thierry Dupré
- Université de Paris, Paris, France
- Biochemistry and Genetic Department, AP-HP, Bichat Hospital, Paris, France
- Centre de recherche sur l'inflammation, Inserm U1149, Paris, France
| | - Monique Fabre
- Department of Pathology, Necker-Enfants-Malades University hospital, APHP, Université de Paris, Paris, France
| | - Lena Damaj
- Department of Pediatrics, Competence Center of Inherited Metabolic Disorders, Rennes Hospital, Rennes, France
| | - Alice Kuster
- Department of Pediatric Intensive care, Competence Center of Inherited Metabolic Disorders, Nantes Hospital, Nantes, France
| | - Stéphanie Torre
- Department of Neonatal Pediatrics and Intensive Care, Rouen University Hospital, Rouen, France
| | - Karine Mention
- Department of Pediatric Metabolism, Reference Center of Inherited Metabolic Disorders, Jeanne de Flandre Hospital, Lille, France
| | - Valérie McLin
- Swiss Pediatric Liver Center, Department of Pediatrics, Gynecology, and Obstetrics, University Geneva Hospitals, Geneva, Switzerland
| | - Dries Dobbelaere
- Department of Pediatric Metabolism, Reference Center of Inherited Metabolic Disorders, Jeanne de Flandre Hospital, Lille, France
| | - Delphine Borgel
- Hematology Department, Necker-Enfants-Malades University Hospital, APHP, Paris, France
- INSERM-URM-S1176, Université Paris Saclay, Le Kremlin-Bicêtre, France
| | - Eric Bauchard
- Reference Center of inherited Metabolic Diseases, Necker-Enfants-Malades University hospital, APHP, Paris, France
| | - Nathalie Seta
- Université de Paris, Paris, France
- Biochemistry, Bichat Hospital, AP-HP, Paris, France
| | - Arnaud Bruneel
- Biochemistry, Bichat Hospital, AP-HP, Paris, France
- INSERM UMR1193, Mécanismes cellulaires et moléculaires de l'adaptation au stress et cancérogenèse, Paris-Saclay University, Châtenay-Malabry, France
| | - Pascale De Lonlay
- Inserm U1151, Institut Necker Enfants-Malades, Paris, France
- Université de Paris, Paris, France
- Reference Center of inherited Metabolic Diseases, Necker-Enfants-Malades University hospital, APHP, Paris, France
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A Great Catch for Investigating Inborn Errors of Metabolism-Insights Obtained from Zebrafish. Biomolecules 2020; 10:biom10091352. [PMID: 32971894 PMCID: PMC7564250 DOI: 10.3390/biom10091352] [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: 08/10/2020] [Revised: 09/18/2020] [Accepted: 09/19/2020] [Indexed: 12/14/2022] Open
Abstract
Inborn errors of metabolism cause abnormal synthesis, recycling, or breakdown of amino acids, neurotransmitters, and other various metabolites. This aberrant homeostasis commonly causes the accumulation of toxic compounds or depletion of vital metabolites, which has detrimental consequences for the patients. Efficient and rapid intervention is often key to survival. Therefore, it requires useful animal models to understand the pathomechanisms and identify promising therapeutic drug targets. Zebrafish are an effective tool to investigate developmental mechanisms and understanding the pathophysiology of disorders. In the past decades, zebrafish have proven their efficiency for studying genetic disorders owing to the high degree of conservation between human and zebrafish genes. Subsequently, several rare inherited metabolic disorders have been successfully investigated in zebrafish revealing underlying mechanisms and identifying novel therapeutic targets, including methylmalonic acidemia, Gaucher’s disease, maple urine disorder, hyperammonemia, TRAPPC11-CDGs, and others. This review summarizes the recent impact zebrafish have made in the field of inborn errors of metabolism.
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Čechová A, Altassan R, Borgel D, Bruneel A, Correia J, Girard M, Harroche A, Kiec-Wilk B, Mohnike K, Pascreau T, Pawliński Ł, Radenkovic S, Vuillaumier-Barrot S, Aldamiz-Echevarria L, Couce ML, Martins EG, Quelhas D, Morava E, de Lonlay P, Witters P, Honzík T. Consensus guideline for the diagnosis and management of mannose phosphate isomerase-congenital disorder of glycosylation. J Inherit Metab Dis 2020; 43:671-693. [PMID: 32266963 PMCID: PMC7574589 DOI: 10.1002/jimd.12241] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/17/2020] [Accepted: 04/03/2020] [Indexed: 12/19/2022]
Abstract
Mannose phosphate isomerase-congenital disorder of glycosylation (MPI-CDG) deficiency is a rare subtype of congenital disorders of protein N-glycosylation. It is characterised by deficiency of MPI caused by pathogenic variants in MPI gene. The manifestation of MPI-CDG is different from other CDGs as the patients suffer dominantly from gastrointestinal and hepatic involvement whereas they usually do not present intellectual disability or neurological impairment. It is also one of the few treatable subtypes of CDGs with proven effect of oral mannose. This article covers a complex review of the literature and recommendations for the management of MPI-CDG with an emphasis on the clinical aspect of the disease. A team of international experts elaborated summaries and recommendations for diagnostics, differential diagnosis, management, and treatment of each system/organ involvement based on evidence-based data and experts' opinions. Those guidelines also reveal more questions about MPI-CDG which need to be further studied.
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Affiliation(s)
- Anna Čechová
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Ruqaiah Altassan
- Medical Genetic Department, King Faisal Specialist Hospital and Research Center, Alfaisal University, Riyadh, Saudi Arabia
| | - Delphine Borgel
- Service d’Hématologie Biologique, Hôpital Necker, Assistance Publique-Hôpitaux de Paris, Université Paris-Saclay, Paris, France
| | - Arnaud Bruneel
- Department of Biochemistry, Assistance Publique-Hôpitaux de Paris, Bichat Hospital, Paris, France
- INSERM UMR1193, Mécanismes Cellulaires et Moléculaires de l’Adaptation au Stress et Cancérogenèse, Université Paris-Saclay, Châtenay-Malabry, France
| | - Joana Correia
- Centro de Referência Doenças Hereditárias do Metabolismo - Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Muriel Girard
- Reference Center of Liver Diseases, Necker Hospital, Assistance Publique-Hôpitaux de Paris, University Paris Descartes, Paris, France
| | - Annie Harroche
- Hemophilia Care Centre, Hematology Unit, Hôpital Necker, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Beata Kiec-Wilk
- Department of Metabolic Diseases JUMC, Krakow and NSSU University Hospital, Krakow, Poland
| | - Klaus Mohnike
- Department of Paediatrics, Otto-von-Guericke University, Magdeburg, Germany
| | - Tiffany Pascreau
- Service d’Hématologie Biologique, Hôpital Necker, Assistance Publique-Hôpitaux de Paris, Université Paris-Saclay, Paris, France
| | - Łukasz Pawliński
- Department of Metabolic Diseases JUMC, Krakow and NSSU University Hospital, Krakow, Poland
| | - Silvia Radenkovic
- Metabolomics Expertise Center, CCB-VIB, Leuven, Belgium
- Department of Clinical Genomics and Laboratory of Medical Pathology, Mayo Clinic, Rochester, Minnesota
| | - Sandrine Vuillaumier-Barrot
- Department of Biochemistry, Assistance Publique-Hôpitaux de Paris, Bichat Hospital, Paris, France
- INSERM U1149, Centre de Recherche sur l’Inflammation (CRI) and Universitá Paris 7 Denis Diderot, Paris, France
| | - Luis Aldamiz-Echevarria
- Group of Metabolism, Biocruces Bizkaia Health Research Institute, Linked Clinical Group of Rare Diseases CIBER (CIBERER), Barakaldo, Spain
| | - Maria Luz Couce
- Department of Pediatrics, Congenital Metabolic Unit, University Clinical Hospital of Santiago, University of Santiago de Compostela, IDIS, CIBERER, MetabERN, Santiago de Compostela, Spain
| | - Esmeralda G. Martins
- Centro de Referência Doenças Hereditárias do Metabolismo - Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Dulce Quelhas
- Centro de Genética Médica Jacinto de Magalhães, Centro de Referência Doenças Hereditárias do Metabolismo - Centro Hospitalar Universitário do Porto (CHUP), Unit for Multidisciplinary Research in Biomedicine, ICBAS, UP, Porto, Portugal
| | - Eva Morava
- Department of Clinical Genomics, Mayo Clinic, Rochester, Minnesota
| | - Pascale de Lonlay
- Reference Center of Inherited Metabolic Diseases, Necker Hospital, APHP, University Paris Descartes, Filière G2M, MetabERN, Paris, France
| | - Peter Witters
- Department of Paediatrics and Metabolic Center, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Tomáš Honzík
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
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Zielińska KA, Grealy M, Dockery P. A stereological study of developmental changes in hepatocyte ultrastructure of zebrafish (Danio rerio). J Anat 2020; 236:996-1003. [PMID: 32056204 DOI: 10.1111/joa.13165] [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] [Received: 06/13/2019] [Revised: 12/19/2019] [Accepted: 01/20/2020] [Indexed: 11/28/2022] Open
Abstract
Histopathology can reveal toxicant-induced changes in the structure of a tissue or organ. A prerequisite for histopathological studies is a sound knowledge of the morphology of the anatomical structure in the normal or healthy state. Zebrafish larvae can provide a tool for studies focused on hepatotoxicity at early stages of development; therefore, the fine structure of the organ should be well characterised. To date, liver structure at 72 and 120 hr post-fertilisation (hpf) has not been reported in detail and this study aimed to fill this scientific gap. A stereological approach allowed for quantitative description of the liver and revealed ultrastructural alterations occurring with time of development. These included a significant increase in the absolute volume of hepatocytes, mitochondria and rough endoplasmic reticulum (rER) during the period of study. The surface area of rER, and of outer and inner mitochondrial membranes also increased. There was no change in the absolute volume of the nuclei. This study provides a quantitative spatial and temporal framework for future research aiming to detect early developmental changes in the liver.
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Affiliation(s)
| | - Maura Grealy
- Department of Pharmacology and Therapeutics, School of Medicine, National University of Ireland, Galway, Ireland
| | - Peter Dockery
- Department of Anatomy, School of Medicine, National University of Ireland, Galway, Ireland
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DeRossi C, Bambino K, Morrison J, Sakarin I, Villacorta-Martin C, Zhang C, Ellis JL, Fiel MI, Ybanez M, Lee YA, Huang KL, Yin C, Sakaguchi TF, Friedman SL, Villanueva A, Chu J. Mannose Phosphate Isomerase and Mannose Regulate Hepatic Stellate Cell Activation and Fibrosis in Zebrafish and Humans. Hepatology 2019; 70:2107-2122. [PMID: 31016744 PMCID: PMC6812593 DOI: 10.1002/hep.30677] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 04/18/2019] [Indexed: 12/13/2022]
Abstract
The growing burden of liver fibrosis and lack of effective antifibrotic therapies highlight the need for identification of pathways and complementary model systems of hepatic fibrosis. A rare, monogenic disorder in which children with mutations in mannose phosphate isomerase (MPI) develop liver fibrosis led us to explore the function of MPI and mannose metabolism in liver development and adult liver diseases. Herein, analyses of transcriptomic data from three human liver cohorts demonstrate that MPI gene expression is down-regulated proportionate to fibrosis in chronic liver diseases, including nonalcoholic fatty liver disease and hepatitis B virus. Depletion of MPI in zebrafish liver in vivo and in human hepatic stellate cell (HSC) lines in culture activates fibrotic responses, indicating that loss of MPI promotes HSC activation. We further demonstrate that mannose supplementation can attenuate HSC activation, leading to reduced fibrogenic activation in zebrafish, culture-activated HSCs, and in ethanol-activated HSCs. Conclusion: These data indicate the prospect that modulation of mannose metabolism pathways could reduce HSC activation and improve hepatic fibrosis.
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Affiliation(s)
- Charles DeRossi
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Kathryn Bambino
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Joshua Morrison
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Isabel Sakarin
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Changwen Zhang
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Jillian L. Ellis
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - M. Isabel Fiel
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Maria Ybanez
- Laboratory of RNA Molecular Biology, Rockefeller University, New York, NY,Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Youngmin A. Lee
- Laboratory of RNA Molecular Biology, Rockefeller University, New York, NY
| | - Kuan-lin Huang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Chunyue Yin
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Takuya F. Sakaguchi
- Department of Stem Cell Biology and Regenerative Medicine, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH
| | - Scott L. Friedman
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Augusto Villanueva
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Jaime Chu
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY
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11
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Reguera M, Abreu I, Sentís C, Bonilla I, Bolaños L. Altered plant organogenesis under boron deficiency is associated with changes in high-mannose N-glycan profile that also occur in animals. JOURNAL OF PLANT PHYSIOLOGY 2019; 243:153058. [PMID: 31715490 DOI: 10.1016/j.jplph.2019.153058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/08/2019] [Accepted: 10/11/2019] [Indexed: 05/29/2023]
Abstract
Boron (B) deficiency affects the development of Pisum sativum nodules and Arabidopsis thaliana root meristems. Both organs show an alteration of cell differentiation that result in the development of tumor-like structures. The fact that B in plants is not only able to interact with components of the cell wall but also with membrane-associated glycoconjugates, led us to analyze changes in high mannose type N-glycans (HMNG). The affinoblots with concanavalin A revealed alterations in the N-glycosylation pattern during early development of nodules and roots under B deprivation. Besides, there is increasing evidence of a B role in animal physiology that brought us to investigate the impact of B deficiency on Danio rerio (zebrafish) development. When B deficiency was induced prior to early cleavage stages, embryos developed as an abnormal undifferentiated mass of cells. Additionally, when B was removed at post-hatching, larvae undergo aberrant organogenesis. Resembling the phenomenon described in plants, alteration of the N-glycosylation pattern occurred in B-deficient zebrafish larvae prior to organogenesis. Overall, these results support a common function of B in plants and animals associated with glycosylation that might be important for cell signaling and cell fate determination during development.
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Affiliation(s)
- María Reguera
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin 2, 28049-Madrid, Spain.
| | - Isidro Abreu
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin 2, 28049-Madrid, Spain.
| | - Carlos Sentís
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin 2, 28049-Madrid, Spain.
| | - Ildefonso Bonilla
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin 2, 28049-Madrid, Spain.
| | - Luis Bolaños
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin 2, 28049-Madrid, Spain.
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12
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Brasil S, Pascoal C, Francisco R, Marques-da-Silva D, Andreotti G, Videira PA, Morava E, Jaeken J, Dos Reis Ferreira V. CDG Therapies: From Bench to Bedside. Int J Mol Sci 2018; 19:ijms19051304. [PMID: 29702557 PMCID: PMC5983582 DOI: 10.3390/ijms19051304] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/14/2018] [Accepted: 04/21/2018] [Indexed: 12/20/2022] Open
Abstract
Congenital disorders of glycosylation (CDG) are a group of genetic disorders that affect protein and lipid glycosylation and glycosylphosphatidylinositol synthesis. More than 100 different disorders have been reported and the number is rapidly increasing. Since glycosylation is an essential post-translational process, patients present a large range of symptoms and variable phenotypes, from very mild to extremely severe. Only for few CDG, potentially curative therapies are being used, including dietary supplementation (e.g., galactose for PGM1-CDG, fucose for SLC35C1-CDG, Mn2+ for TMEM165-CDG or mannose for MPI-CDG) and organ transplantation (e.g., liver for MPI-CDG and heart for DOLK-CDG). However, for the majority of patients, only symptomatic and preventive treatments are in use. This constitutes a burden for patients, care-givers and ultimately the healthcare system. Innovative diagnostic approaches, in vitro and in vivo models and novel biomarkers have been developed that can lead to novel therapeutic avenues aiming to ameliorate the patients’ symptoms and lives. This review summarizes the advances in therapeutic approaches for CDG.
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Affiliation(s)
- Sandra Brasil
- Portuguese Association for Congenital Disorders of Glycosylation (CDG), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Professionals and Patient Associations International Network (CDG & Allies-PPAIN), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
| | - Carlota Pascoal
- Portuguese Association for Congenital Disorders of Glycosylation (CDG), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Professionals and Patient Associations International Network (CDG & Allies-PPAIN), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Research Unit on Applied Molecular Biosciences (UCIBIO), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Lisboa, Portugal.
| | - Rita Francisco
- Portuguese Association for Congenital Disorders of Glycosylation (CDG), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Professionals and Patient Associations International Network (CDG & Allies-PPAIN), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Research Unit on Applied Molecular Biosciences (UCIBIO), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Lisboa, Portugal.
| | - Dorinda Marques-da-Silva
- Portuguese Association for Congenital Disorders of Glycosylation (CDG), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Professionals and Patient Associations International Network (CDG & Allies-PPAIN), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Research Unit on Applied Molecular Biosciences (UCIBIO), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Lisboa, Portugal.
| | - Giuseppina Andreotti
- Istituto di Chimica Biomolecolare-Consiglio Nazionale delle Ricerche (CNR), 80078 Pozzuoli, Italy.
| | - Paula A Videira
- Portuguese Association for Congenital Disorders of Glycosylation (CDG), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Professionals and Patient Associations International Network (CDG & Allies-PPAIN), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Research Unit on Applied Molecular Biosciences (UCIBIO), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Lisboa, Portugal.
| | - Eva Morava
- Professionals and Patient Associations International Network (CDG & Allies-PPAIN), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Department of Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA.
| | - Jaak Jaeken
- Professionals and Patient Associations International Network (CDG & Allies-PPAIN), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Center for Metabolic Diseases, Universitaire Ziekenhuizen (UZ) and Katholieke Universiteit (KU) Leuven, 3000 Leuven, Belgium.
| | - Vanessa Dos Reis Ferreira
- Portuguese Association for Congenital Disorders of Glycosylation (CDG), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
- Professionals and Patient Associations International Network (CDG & Allies-PPAIN), Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2820-287 Lisboa, Portugal.
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13
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Frappaolo A, Sechi S, Kumagai T, Robinson S, Fraschini R, Karimpour-Ghahnavieh A, Belloni G, Piergentili R, Tiemeyer KH, Tiemeyer M, Giansanti MG. COG7 deficiency in Drosophila generates multifaceted developmental, behavioral and protein glycosylation phenotypes. J Cell Sci 2017; 130:3637-3649. [PMID: 28883096 DOI: 10.1242/jcs.209049] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 09/04/2017] [Indexed: 12/14/2022] Open
Abstract
Congenital disorders of glycosylation (CDG) comprise a family of human multisystemic diseases caused by recessive mutations in genes required for protein N-glycosylation. More than 100 distinct forms of CDGs have been identified and most of them cause severe neurological impairment. The Conserved Oligomeric Golgi (COG) complex mediates tethering of vesicles carrying glycosylation enzymes across the Golgi cisternae. Mutations affecting human COG1, COG2 and COG4-COG8 cause monogenic forms of inherited, autosomal recessive CDGs. We have generated a Drosophila COG7-CDG model that closely parallels the pathological characteristics of COG7-CDG patients, including pronounced neuromotor defects associated with altered N-glycome profiles. Consistent with these alterations, larval neuromuscular junctions of Cog7 mutants exhibit a significant reduction in bouton numbers. We demonstrate that the COG complex cooperates with Rab1 and Golgi phosphoprotein 3 to regulate Golgi trafficking and that overexpression of Rab1 can rescue the cytokinesis and locomotor defects associated with loss of Cog7. Our results suggest that the Drosophila COG7-CDG model can be used to test novel potential therapeutic strategies by modulating trafficking pathways.
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Affiliation(s)
- Anna Frappaolo
- Istituto di Biologia e Patologia Molecolari del CNR, Dipartimento di Biologia e Biotecnologie, Università Sapienza di Roma, Roma, Piazzale A. Moro 5, 00185 Roma, Italy
| | - Stefano Sechi
- Istituto di Biologia e Patologia Molecolari del CNR, Dipartimento di Biologia e Biotecnologie, Università Sapienza di Roma, Roma, Piazzale A. Moro 5, 00185 Roma, Italy
| | - Tadahiro Kumagai
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Rd., Athens, GA 30602, USA
| | - Sarah Robinson
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Rd., Athens, GA 30602, USA
| | - Roberta Fraschini
- Dipartimento di Biotecnologie e Bioscienze, Università degli studi di Milano Bicocca, 20126 Milano, Italy
| | - Angela Karimpour-Ghahnavieh
- Istituto di Biologia e Patologia Molecolari del CNR, Dipartimento di Biologia e Biotecnologie, Università Sapienza di Roma, Roma, Piazzale A. Moro 5, 00185 Roma, Italy
| | - Giorgio Belloni
- Istituto di Biologia e Patologia Molecolari del CNR, Dipartimento di Biologia e Biotecnologie, Università Sapienza di Roma, Roma, Piazzale A. Moro 5, 00185 Roma, Italy
| | - Roberto Piergentili
- Istituto di Biologia e Patologia Molecolari del CNR, Dipartimento di Biologia e Biotecnologie, Università Sapienza di Roma, Roma, Piazzale A. Moro 5, 00185 Roma, Italy
| | - Katherine H Tiemeyer
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Rd., Athens, GA 30602, USA
| | - Michael Tiemeyer
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Rd., Athens, GA 30602, USA .,Department of Biochemistry and Molecular Biology, The University of Georgia, B122 Life Sciences Building, Athens, GA 30602, USA
| | - Maria Grazia Giansanti
- Istituto di Biologia e Patologia Molecolari del CNR, Dipartimento di Biologia e Biotecnologie, Università Sapienza di Roma, Roma, Piazzale A. Moro 5, 00185 Roma, Italy
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14
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Shtraizent N, DeRossi C, Nayar S, Sachidanandam R, Katz LS, Prince A, Koh AP, Vincek A, Hadas Y, Hoshida Y, Scott DK, Eliyahu E, Freeze HH, Sadler KC, Chu J. MPI depletion enhances O-GlcNAcylation of p53 and suppresses the Warburg effect. eLife 2017. [PMID: 28644127 PMCID: PMC5495572 DOI: 10.7554/elife.22477] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Rapid cellular proliferation in early development and cancer depends on glucose metabolism to fuel macromolecule biosynthesis. Metabolic enzymes are presumed regulators of this glycolysis-driven metabolic program, known as the Warburg effect; however, few have been identified. We uncover a previously unappreciated role for Mannose phosphate isomerase (MPI) as a metabolic enzyme required to maintain Warburg metabolism in zebrafish embryos and in both primary and malignant mammalian cells. The functional consequences of MPI loss are striking: glycolysis is blocked and cells die. These phenotypes are caused by induction of p53 and accumulation of the glycolytic intermediate fructose 6-phosphate, leading to engagement of the hexosamine biosynthetic pathway (HBP), increased O-GlcNAcylation, and p53 stabilization. Inhibiting the HBP through genetic and chemical methods reverses p53 stabilization and rescues the Mpi-deficient phenotype. This work provides mechanistic evidence by which MPI loss induces p53, and identifies MPI as a novel regulator of p53 and Warburg metabolism. DOI:http://dx.doi.org/10.7554/eLife.22477.001
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Affiliation(s)
- Nataly Shtraizent
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, United States.,The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Charles DeRossi
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, United States.,The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Shikha Nayar
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, United States.,The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Ravi Sachidanandam
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Liora S Katz
- Department of Medicine, Division of Endocrinology, Diabetes and Bone Disease, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Adam Prince
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Anna P Koh
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Adam Vincek
- Department of Genetics and Genomic Sciences, Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Yoav Hadas
- Department of Genetics and Genomic Sciences, Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Yujin Hoshida
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Donald K Scott
- Department of Medicine, Division of Endocrinology, Diabetes and Bone Disease, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Efrat Eliyahu
- Department of Genetics and Genomic Sciences, Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Hudson H Freeze
- Sanford Children's Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, United States
| | - Kirsten C Sadler
- Biology Program, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Jaime Chu
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, United States.,The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, United States
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15
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Abstract
The zebrafish skeleton shares many similarities with human and other vertebrate skeletons. Over the past years, work in zebrafish has provided an extensive understanding of the basic developmental mechanisms and cellular pathways directing skeletal development and homeostasis. This review will focus on the cell biology of cartilage and bone and how the basic cellular processes within chondrocytes and osteocytes function to assemble the structural frame of a vertebrate body. We will discuss fundamental functions of skeletal cells in production and secretion of extracellular matrix and cellular activities leading to differentiation of progenitors to mature cells that make up the skeleton. We highlight important examples where findings in zebrafish provided direction for the search for genes causing human skeletal defects and also how zebrafish research has proven important for validating candidate human disease genes. The work we cover here illustrates utility of zebrafish in unraveling molecular mechanisms of cellular functions necessary to form and maintain a healthy skeleton.
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Affiliation(s)
- Lauryn N Luderman
- Vanderbilt University Medical Center, Nashville, TN, United States; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, United States; Vanderbilt Genetics Institute, Vanderbilt University, Nashville, TN, United States
| | - Gokhan Unlu
- Vanderbilt University Medical Center, Nashville, TN, United States; Vanderbilt Genetics Institute, Vanderbilt University, Nashville, TN, United States; Vanderbilt University, Nashville, TN, United States
| | - Ela W Knapik
- Vanderbilt University Medical Center, Nashville, TN, United States; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, United States; Vanderbilt Genetics Institute, Vanderbilt University, Nashville, TN, United States; Vanderbilt University, Nashville, TN, United States.
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16
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DeRossi C, Vacaru A, Rafiq R, Cinaroglu A, Imrie D, Nayar S, Baryshnikova A, Milev MP, Stanga D, Kadakia D, Gao N, Chu J, Freeze HH, Lehrman MA, Sacher M, Sadler KC. trappc11 is required for protein glycosylation in zebrafish and humans. Mol Biol Cell 2016; 27:1220-34. [PMID: 26912795 PMCID: PMC4831877 DOI: 10.1091/mbc.e15-08-0557] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 02/12/2016] [Accepted: 02/19/2016] [Indexed: 12/23/2022] Open
Abstract
Activation of the unfolded protein response (UPR) can be either adaptive or pathological. We term the pathological UPR that causes fatty liver disease a "stressed UPR." Here we investigate the mechanism of stressed UPR activation in zebrafish bearing a mutation in thetrappc11gene, which encodes a component of the transport protein particle (TRAPP) complex.trappc11mutants are characterized by secretory pathway defects, reflecting disruption of the TRAPP complex. In addition, we uncover a defect in protein glycosylation intrappc11mutants that is associated with reduced levels of lipid-linked oligosaccharides (LLOs) and compensatory up-regulation of genes in the terpenoid biosynthetic pathway that produces the LLO anchor dolichol. Treating wild-type larvae with terpenoid or LLO synthesis inhibitors phenocopies the stressed UPR seen intrappc11mutants and is synthetically lethal withtrappc11mutation. We propose that reduced LLO level causing hypoglycosylation is a mechanism of stressed UPR induction intrappc11mutants. Of importance, in human cells, depletion of TRAPPC11, but not other TRAPP components, causes protein hypoglycosylation, and lipid droplets accumulate in fibroblasts from patients with theTRAPPC11mutation. These data point to a previously unanticipated and conserved role for TRAPPC11 in LLO biosynthesis and protein glycosylation in addition to its established function in vesicle trafficking.
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Affiliation(s)
- Charles DeRossi
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029 Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Ana Vacaru
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029 Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Ruhina Rafiq
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029 Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Ayca Cinaroglu
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029 Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Dru Imrie
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029 Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Shikha Nayar
- Department of Pediatrics and Mindich Institute for Child Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Anastasia Baryshnikova
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544
| | - Miroslav P Milev
- Department of Biology, Concordia University, Montreal, QC H4B 1R6, Canada
| | - Daniela Stanga
- Department of Biology, Concordia University, Montreal, QC H4B 1R6, Canada
| | - Dhara Kadakia
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Ningguo Gao
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Jaime Chu
- Department of Pediatrics and Mindich Institute for Child Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Hudson H Freeze
- Sanford Children's Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
| | - Mark A Lehrman
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Michael Sacher
- Department of Biology, Concordia University, Montreal, QC H4B 1R6, Canada Department of Anatomy and Cell Biology, McGill University, Montreal, QC H3A 0C7, Canada
| | - Kirsten C Sadler
- Department of Medicine, Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029 Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029 Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029
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17
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Kent B, Magnani E, Walsh MJ, Sadler KC. UHRF1 regulation of Dnmt1 is required for pre-gastrula zebrafish development. Dev Biol 2016; 412:99-113. [PMID: 26851214 DOI: 10.1016/j.ydbio.2016.01.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 01/22/2016] [Accepted: 01/27/2016] [Indexed: 12/16/2022]
Abstract
Landmark epigenetic events underlie early embryonic development, yet how epigenetic modifiers are regulated to achieve rapid epigenome re-patterning is not known. Uhrf1 and DNA methyltransferase 1 (Dnmt1) are known to largely mediate maintenance DNA methylation and Uhrf1 is also required for both Dnmt1 localization and stability. Here, we investigate how these two key epigenetic modifiers regulate early zebrafish development and characterize the developmental consequences of disrupting their homeostatic relationship. Unlike Uhrf1 knockdown, which causes developmental arrest and death prior to gastrulation, overexpression of human UHRF1 (WT-UHRF1) caused asymmetric epiboly, inefficient gastrulation and multi-systemic defects. UHRF1 phosphorylation was previously demonstrated as essential for zebrafish embryogenesis, and we found that penetrance of the asymmetric epiboly phenotype was significantly increased in embryos injected with mRNA encoding non-phosphorylatable UHRF1 (UHRF1(S661A)). Surprisingly, both WT-UHRF1 and UHRF1(S661A) overexpression caused DNA hypomethylation. However, since other approaches that caused an equivalent degree of DNA hypomethylation did not cause the asymmetric epiboly phenotype, we conclude that bulk DNA methylation is not the primary mechanism. Instead, UHRF1(S661A) overexpression resulted in accumulation of Dnmt1 protein and the overexpression of both WT and a catalytically inactive Dnmt1 phenocopied the assymetric epiboly phenotype. Dnmt1 knockdown suppressed the phenotype caused by UHRF1(S661A) overexpression, and Uhrf1 knockdown suppressed the effect of Dnmt1 overexpression. Therefore, we conclude that the interaction between these two proteins is the mechanism underlying the gastrulation defects. This indicates that Dnmt1 stability requires UHRF1 phosphorylation and that crosstalk between the proteins is essential for the function of these two important epigenetic regulators during gastrulation.
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Affiliation(s)
- Brandon Kent
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, Box 1020, 1 Gustave L. Levy Place, New York, NY 10029, United States; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, Box 1020, 1 Gustave L. Levy Place, New York, NY 10029, United States
| | - Elena Magnani
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, Box 1020, 1 Gustave L. Levy Place, New York, NY 10029, United States; Department of Medicine/Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, Box 1020, 1 Gustave L. Levy Place, New York, NY 10029, United States
| | - Martin J Walsh
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, Box 1020, 1 Gustave L. Levy Place, New York, NY 10029, United States; Department of Structural and Chemical Biology, Icahn School of Medicine at Mount Sinai, Box 1020, 1 Gustave L. Levy Place, New York, NY 10029, United States; Department of Genetics and Genomics Sciences, Icahn School of Medicine at Mount Sinai, Box 1020, 1 Gustave L. Levy Place, New York, NY 10029, United States
| | - Kirsten C Sadler
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, Box 1020, 1 Gustave L. Levy Place, New York, NY 10029, United States; Department of Medicine/Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, Box 1020, 1 Gustave L. Levy Place, New York, NY 10029, United States.
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18
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Himmelreich N, Kaufmann LT, Steinbeisser H, Körner C, Thiel C. Lack of phosphomannomutase 2 affects Xenopus laevis morphogenesis and the non-canonical Wnt5a/Ror2 signalling. J Inherit Metab Dis 2015; 38:1137-46. [PMID: 26141167 DOI: 10.1007/s10545-015-9874-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 06/09/2015] [Accepted: 06/10/2015] [Indexed: 01/22/2023]
Abstract
Reduced phosphomannomutase 2 activity in man leads to hypoglycosylation of glycoconjugates causing PMM2-CDG, the most common type of congenital disorders of glycosylation. Here we show that an antisense morpholino-mediated knockdown of the Xenopus laevis phosphomannomutase 2 gene provoked a general underglycosylation in frog embryos, which led to an altered phenotype and reduced glycosylation of Wnt5a as member of the non-canonical Wnt signalling. Loss of function experiments in hemi-sectioned embryos proved that due to the phosphomannomutase 2 knockdown expression of the Wnt5a/Ror2 target gene paraxial protocadherin was significantly decreased. Regarding the expression of paraxial protocadherin, a gain of function could only be achieved by injections of wnt5a and ror2 in dorsal neighbouring blastomeres, while a parallel injection of phosphomannomutase 2 morpholino led to a significant reduced level of expression. Our data show for the first time that a knockdown of phosphomannomutase 2 influences in vivo the non-canonical Wnt signalling during early embryogenesis.
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Affiliation(s)
- Nastassja Himmelreich
- Center for Child- and Adolescent Medicine and Center for Metabolic Diseases Heidelberg, Department I, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany
| | - Lilian T Kaufmann
- Institute of Human Genetics, Division of Developmental Genetics, University of Heidelberg, Im Neuenheimer Feld 366, 69120, Heidelberg, Germany
| | - Herbert Steinbeisser
- Institute of Human Genetics, Division of Developmental Genetics, University of Heidelberg, Im Neuenheimer Feld 366, 69120, Heidelberg, Germany
| | - Christian Körner
- Center for Child- and Adolescent Medicine and Center for Metabolic Diseases Heidelberg, Department I, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany
| | - Christian Thiel
- Center for Child- and Adolescent Medicine and Center for Metabolic Diseases Heidelberg, Department I, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany.
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19
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Sharma V, Ichikawa M, Freeze HH. Mannose metabolism: more than meets the eye. Biochem Biophys Res Commun 2014; 453:220-8. [PMID: 24931670 PMCID: PMC4252654 DOI: 10.1016/j.bbrc.2014.06.021] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 06/04/2014] [Indexed: 12/29/2022]
Abstract
Mannose is a simple sugar with a complex life. It is a welcome therapy for genetic and acquired human diseases, but it kills honeybees and blinds baby mice. It could cause diabetic complications. Mannose chemistry, metabolism, and metabolomics in cells, tissues and mammals can help explain these multiple systemic effects. Mannose has good, bad or ugly outcomes depending on its steady state levels and metabolic flux. This review describes the role of mannose at cellular level and its impact on organisms.
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Affiliation(s)
- Vandana Sharma
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA.
| | - Mie Ichikawa
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
| | - Hudson H Freeze
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
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20
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Mudbhary R, Hoshida Y, Chernyavskaya Y, Jacob V, Villanueva A, Fiel MI, Chen X, Kojima K, Thung S, Bronson RT, Lachenmayer A, Revill K, Alsinet C, Sachidanandam R, Desai A, SenBanerjee S, Ukomadu C, Llovet JM, Sadler KC. UHRF1 overexpression drives DNA hypomethylation and hepatocellular carcinoma. Cancer Cell 2014; 25:196-209. [PMID: 24486181 PMCID: PMC3951208 DOI: 10.1016/j.ccr.2014.01.003] [Citation(s) in RCA: 242] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 08/29/2013] [Accepted: 01/06/2014] [Indexed: 12/11/2022]
Abstract
Ubiquitin-like with PHD and RING finger domains 1 (UHRF1) is an essential regulator of DNA methylation that is highly expressed in many cancers. Here, we use transgenic zebrafish, cultured cells, and human tumors to demonstrate that UHRF1 is an oncogene. UHRF1 overexpression in zebrafish hepatocytes destabilizes and delocalizes Dnmt1 and causes DNA hypomethylation and Tp53-mediated senescence. Hepatocellular carcinoma (HCC) emerges when senescence is bypassed. tp53 mutation both alleviates senescence and accelerates tumor onset. Human HCCs recapitulate this paradigm, as UHRF1 overexpression defines a subclass of aggressive HCCs characterized by genomic instability, TP53 mutation, and abrogation of the TP53-mediated senescence program. We propose that UHRF1 overexpression is a mechanism underlying DNA hypomethylation in cancer cells and that senescence is a primary means of restricting tumorigenesis due to epigenetic disruption.
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Affiliation(s)
- Raksha Mudbhary
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Graduate School of Biological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Yujin Hoshida
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Liver Cancer Program/Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Yelena Chernyavskaya
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Vinitha Jacob
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Graduate School of Biological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Augusto Villanueva
- HCC Translational Research Laboratory, IDIBAPS, CIBEREHD, Hospital Clinic, University of Barcelona, Catalonia 08036, Spain; Institute of Liver Studies, Division of Transplantation Immunology and Mucosal Biology, King's College London, London SE5 9RS, UK
| | - M Isabel Fiel
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Xintong Chen
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Liver Cancer Program/Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Kensuke Kojima
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Liver Cancer Program/Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Swan Thung
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Roderick T Bronson
- Rodent Histopathology Core Dana Farber/Harvard Cancer Center, Harvard Medical School, Boston, MA 02115, USA
| | - Anja Lachenmayer
- Liver Cancer Program/Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Kate Revill
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Liver Cancer Program/Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Clara Alsinet
- HCC Translational Research Laboratory, IDIBAPS, CIBEREHD, Hospital Clinic, University of Barcelona, Catalonia 08036, Spain
| | - Ravi Sachidanandam
- Department of Genetics and Genomics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Anal Desai
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Sucharita SenBanerjee
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Chinweike Ukomadu
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Josep M Llovet
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Liver Cancer Program/Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; HCC Translational Research Laboratory, IDIBAPS, CIBEREHD, Hospital Clinic, University of Barcelona, Catalonia 08036, Spain; Institució Catalana de Recerca i Estudis Avançats Lluís Companys, Barcelona 08010, Spain
| | - Kirsten C Sadler
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Graduate School of Biological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Liver Cancer Program/Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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21
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Vacaru AM, Unlu G, Spitzner M, Mione M, Knapik EW, Sadler KC. In vivo cell biology in zebrafish - providing insights into vertebrate development and disease. J Cell Sci 2014; 127:485-95. [PMID: 24481493 PMCID: PMC4007761 DOI: 10.1242/jcs.140194] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Over the past decades, studies using zebrafish have significantly advanced our understanding of the cellular basis for development and human diseases. Zebrafish have rapidly developing transparent embryos that allow comprehensive imaging of embryogenesis combined with powerful genetic approaches. However, forward genetic screens in zebrafish have generated unanticipated findings that are mirrored by human genetic studies: disruption of genes implicated in basic cellular processes, such as protein secretion or cytoskeletal dynamics, causes discrete developmental or disease phenotypes. This is surprising because many processes that were assumed to be fundamental to the function and survival of all cell types appear instead to be regulated by cell-specific mechanisms. Such discoveries are facilitated by experiments in whole animals, where zebrafish provides an ideal model for visualization and manipulation of organelles and cellular processes in a live vertebrate. Here, we review well-characterized mutants and newly developed tools that underscore this notion. We focus on the secretory pathway and microtubule-based trafficking as illustrative examples of how studying cell biology in vivo using zebrafish has broadened our understanding of the role fundamental cellular processes play in embryogenesis and disease.
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Affiliation(s)
- Ana M. Vacaru
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, Box 1020, New York, NY 10029, USA
- Department of Medicine/Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, Box 1020, New York, NY 10029, USA
| | - Gokhan Unlu
- Division of Genetic Medicine, Department of Medicine, and Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Marie Spitzner
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Marina Mione
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Ela W. Knapik
- Division of Genetic Medicine, Department of Medicine, and Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Kirsten C. Sadler
- Department of Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, Box 1020, New York, NY 10029, USA
- Department of Medicine/Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, Box 1020, New York, NY 10029, USA
- Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, Box 1020, New York, NY 10029, USA
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22
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Sharma V, Nayak J, DeRossi C, Charbono A, Ichikawa M, Ng BG, Grajales-Esquivel E, Srivastava A, Wang L, He P, Scott DA, Russell J, Contreras E, Guess CM, Krajewski S, Del Rio-Tsonis K, Freeze HH. Mannose supplements induce embryonic lethality and blindness in phosphomannose isomerase hypomorphic mice. FASEB J 2014; 28:1854-69. [PMID: 24421398 DOI: 10.1096/fj.13-245514] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Patients with congenital disorder of glycosylation (CDG), type Ib (MPI-CDG or CDG-Ib) have mutations in phosphomannose isomerase (MPI) that impair glycosylation and lead to stunted growth, liver dysfunction, coagulopathy, hypoglycemia, and intestinal abnormalities. Mannose supplements correct hypoglycosylation and most symptoms by providing mannose-6-P (Man-6-P) via hexokinase. We generated viable Mpi hypomorphic mice with residual enzymatic activity comparable to that of patients, but surprisingly, these mice appeared completely normal except for modest (~15%) embryonic lethality. To overcome this lethality, pregnant dams were provided 1-2% mannose in their drinking water. However, mannose further reduced litter size and survival to weaning by 40 and 66%, respectively. Moreover, ~50% of survivors developed eye defects beginning around midgestation. Mannose started at birth also led to eye defects but had no effect when started after eye development was complete. Man-6-P and related metabolites accumulated in the affected adult eye and in developing embryos and placentas. Our results demonstrate that disturbing mannose metabolic flux in mice, especially during embryonic development, induces a highly specific, unanticipated pathological state. It is unknown whether mannose is harmful to human fetuses during gestation; however, mothers who are at risk for having MPI-CDG children and who consume mannose during pregnancy hoping to benefit an affected fetus in utero should be cautious.
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Affiliation(s)
- Vandana Sharma
- 2Sanford-Burnham Medical Research Institute (SBMRI), 10901 North Torrey Pines Road, La Jolla, CA 92037, USA.
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23
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Freeze HH. Understanding human glycosylation disorders: biochemistry leads the charge. J Biol Chem 2013; 288:6936-45. [PMID: 23329837 DOI: 10.1074/jbc.r112.429274] [Citation(s) in RCA: 153] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Nearly 70 inherited human glycosylation disorders span a breathtaking clinical spectrum, impacting nearly every organ system and launching a family-driven diagnostic odyssey. Advances in genetics, especially next generation sequencing, propelled discovery of many glycosylation disorders in single and multiple pathways. Interpretation of whole exome sequencing results, insights into pathological mechanisms, and possible therapies will hinge on biochemical analysis of patient-derived materials and animal models. Biochemical diagnostic markers and readouts offer a physiological context to confirm candidate genes. Recent discoveries suggest novel perspectives for textbook biochemistry and novel research opportunities. Basic science and patients are the immediate beneficiaries of this bidirectional collaboration.
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Affiliation(s)
- Hudson H Freeze
- Genetic Disease Program, Sanford-Burnham Medical Research Institute, La Jolla, California 92037, USA
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24
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Cline A, Gao N, Flanagan-Steet H, Sharma V, Rosa S, Sonon R, Azadi P, Sadler KC, Freeze HH, Lehrman MA, Steet R. A zebrafish model of PMM2-CDG reveals altered neurogenesis and a substrate-accumulation mechanism for N-linked glycosylation deficiency. Mol Biol Cell 2012; 23:4175-87. [PMID: 22956764 PMCID: PMC3484097 DOI: 10.1091/mbc.e12-05-0411] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
PMM2-CDG patients have phosphomannomutase (Pmm2) deficiency, with developmental and N-linked glycosylation defects attributed to depletion of mannose-1-phosphate and downstream lipid-linked oligosaccharides (LLOs). This, the first PMM2-CDG zebrafish model, shows, unexpectedly, that accumulation of the Pmm2 substrate mannose-6-phosphate explains LLO deficiency. Congenital disorder of glycosylation (PMM2-CDG) results from mutations in pmm2, which encodes the phosphomannomutase (Pmm) that converts mannose-6-phosphate (M6P) to mannose-1-phosphate (M1P). Patients have wide-spectrum clinical abnormalities associated with impaired protein N-glycosylation. Although it has been widely proposed that Pmm2 deficiency depletes M1P, a precursor of GDP-mannose, and consequently suppresses lipid-linked oligosaccharide (LLO) levels needed for N-glycosylation, these deficiencies have not been demonstrated in patients or any animal model. Here we report a morpholino-based PMM2-CDG model in zebrafish. Morphant embryos had developmental abnormalities consistent with PMM2-CDG patients, including craniofacial defects and impaired motility associated with altered motor neurogenesis within the spinal cord. Significantly, global N-linked glycosylation and LLO levels were reduced in pmm2 morphants. Although M1P and GDP-mannose were below reliable detection/quantification limits, Pmm2 depletion unexpectedly caused accumulation of M6P, shown earlier to promote LLO cleavage in vitro. In pmm2 morphants, the free glycan by-products of LLO cleavage increased nearly twofold. Suppression of the M6P-synthesizing enzyme mannose phosphate isomerase within the pmm2 background normalized M6P levels and certain aspects of the craniofacial phenotype and abrogated pmm2-dependent LLO cleavage. In summary, we report the first zebrafish model of PMM2-CDG and uncover novel cellular insights not possible with other systems, including an M6P accumulation mechanism for underglycosylation.
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Affiliation(s)
- Abigail Cline
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA 30602, USA
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