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Xia Z, Ng BG, Jennions E, Blomqvist M, Sandqvist Wiklund A, Hedberg‐Oldfors C, Gonzalez CR, Freeze HH, Ygberg S, Eklund EA. The Swedish COG6-CDG experience and a comprehensive literature review. JIMD Rep 2023; 64:79-89. [PMID: 36636598 PMCID: PMC9830022 DOI: 10.1002/jmd2.12338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 01/16/2023] Open
Abstract
Here, we present the first two Swedish cases of Conserved Oligomeric Golgi complex subunit 6-congenital disorders of glycosylation (COG6-CDG). Their clinical symptoms include intellectual disability, Attention Deficit/Hyperactivity Disorder (ADHD), delayed brain myelinization, progressive microcephaly, joint laxity, hyperkeratosis, frequent infections, and enamel hypoplasia. In one family, compound heterozygous variants in COG6 were identified, where one (c.785A>G; p.Tyr262Cys) has previously been described in patients of Moroccan descent, whereas the other (c.238G>A; p.Glu80Lys) is undescribed. On the other hand, a previously undescribed homozygous duplication (c.1793_1795dup) was deemed the cause of the disease. To confirm the pathogenicity of the variants, we treated patient and control fibroblasts with the ER-Golgi transport inhibitor Brefeldin-A and show that patient cells manifest a significantly slower anterograde and retrograde ER-Golgi transport.
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Affiliation(s)
- Zhi‐Jie Xia
- Sanford Burnham Prebys Medical Discovery InstituteLa JollaCaliforniaUSA
| | - Bobby G. Ng
- Sanford Burnham Prebys Medical Discovery InstituteLa JollaCaliforniaUSA
| | - Elizabeth Jennions
- Department of PediatricsInstitute of Clinical Sciences, Sahlgrenska AcademyGothenburgSweden
| | - Maria Blomqvist
- Department of Laboratory MedicineInstitute of Biomedicine, University of GothenburgGothenburgSweden
- Department of Clinical ChemistrySahlgrenska University HospitalGothenburgSweden
| | | | - Carola Hedberg‐Oldfors
- Department of Laboratory MedicineInstitute of Biomedicine, University of GothenburgGothenburgSweden
| | | | - Hudson H. Freeze
- Sanford Burnham Prebys Medical Discovery InstituteLa JollaCaliforniaUSA
| | - Sofia Ygberg
- Department of Medical Biochemistry and BiophysicsKarolinska InstituteStockholmSweden
- Centre for Inherited Metabolic Diseases (CMMS)Karolinska University HospitalStockholmSweden
- Pediatric NeurologyKarolinska University HospitalStockholmSweden
| | - Erik A. Eklund
- Sanford Burnham Prebys Medical Discovery InstituteLa JollaCaliforniaUSA
- Pediatrics, Clinical SciencesLund UniversityLundSweden
- Pediatric NeurologySkåne University HospitalLundSweden
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α-1,6-Fucosyltransferase Is Essential for Myogenesis in Zebrafish. Cells 2022; 12:cells12010144. [PMID: 36611938 PMCID: PMC9818595 DOI: 10.3390/cells12010144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/08/2022] [Accepted: 12/24/2022] [Indexed: 12/31/2022] Open
Abstract
Glycosylation is an important mechanism regulating various biological processes, including intercellular signaling and adhesion. α-1,6-fucosyltransferase (Fut8) belongs to a family of enzymes that determine the terminal structure of glycans. Fut8 is widely conserved from Caenorhabditis elegans to humans, and its mutants have been reported in humans, mice, and zebrafish. Although mutants show various symptoms, such as spinal deformity and growth retardation, its effects on skeletal muscles are unknown. We aimed to elucidate the function of Fut8 in skeletal muscle using zebrafish and C2C12 cells for evaluation. We observed that most fut8a morphants died at 2 days post-fertilization (dpf) or in earlier developmental stages even at low concentrations of morpholino oligonucleotides (MOs). Mutant juveniles also had small body sizes, and abnormal myocepta and sarcomere structures, suggesting that Fut8a plays important roles in myogenesis. Moreover, treatment of C2C12 cells with 2-fluorofucose (2FF), a fucosylation inhibitor, during cell differentiation dramatically reduced the expression of myogenic genes, such as Myomaker and other myogenic fusion genes, and inhibited myotube formation. These results indicate that Fut8 is an important factor in myogenesis, and myofusion in particular.
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He Y, Shi H, Li Z, Kang J, Li M, Liu M, Liu Y, Zhao J, Dou T, Jia J, Duan Y, Wang K, Ge C. Identification of New Genes and Genetic Variant Loci Associated with Breast Muscle Development in the Mini-Cobb F2 Chicken Population Using a Genome-Wide Association Study. Genes (Basel) 2022; 13:2153. [PMID: 36421827 PMCID: PMC9690689 DOI: 10.3390/genes13112153] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 06/22/2024] Open
Abstract
Native chicken has become a favorite choice for consumers in many Asian countries recently, not only for its potential nutritional value but also for its deep ties to local food culture. However, low growth performance and limited meat production restrict their economic potential. Conducting a genome-wide association study (GWAS) for chicken-breast muscle development will help identify loci or candidate genes for different traits and potentially provide new insight into this phenotype in chickens and other species. To improve native chicken growth performance, especially breast muscle development, we performed a GWAS to explore the potential genetic mechanisms of breast muscle development in an F2 population constructed by reciprocal crosses between a fast-growing broiler chicken (Cobb500) and a slow-growing native chicken (Daweishan mini chicken). The results showed that 11 SNPs, which exceeded the 10% genome significance level (p = 1.79 × 10-8) were considered associated with breast muscle development traits, where six SNPS, NC_006126.5: g.3138376T>G, NC_006126.5: g.3138452A>G, NC_006088.5: g.73837197A>G, NC_006088.5: g.159574275A>G, NC_006089.5: g.80832197A>G, and NC_006127.5: g.48759869G>T was first identified in this study. In total, 13 genes near the SNPs were chosen as candidate genes, and none of them had previously been studied for their role in breast muscle development. After grouping the F2 population according to partial SNPs, significant differences in breast muscle weight were found among different genotypes (p < 0.05), and the expression levels of ALOX5AP, USPL1, CHRNA9, and EFNA5 among candidate genes were also significantly different (p < 0.05). The results of this study will contribute to the future exploration of the potential genetic mechanisms of breast muscle development in domestic chickens and also support the expansion of the market for native chicken in the world.
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Affiliation(s)
- Yang He
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Hongmei Shi
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Zijian Li
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jiajia Kang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Mengyuan Li
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Mengqian Liu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Yong Liu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jinbo Zhao
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Tengfei Dou
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Junjing Jia
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Yong Duan
- Kunming Animal Health Supervision, 118 Gulou Road, Kunming 650000, China
| | - Kun Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Changrong Ge
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
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Cirnigliaro L, Bianchi P, Sturiale L, Garozzo D, Mangili G, Keldermans L, Rizzo R, Matthijs G, Fiumara A, Jaeken J, Barone R. COG6‐CDG
: Novel variants and novel malformation. Birth Defects Res 2022; 114:165-174. [PMID: 35068072 PMCID: PMC9306771 DOI: 10.1002/bdr2.1981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/29/2021] [Accepted: 01/07/2022] [Indexed: 12/12/2022]
Affiliation(s)
- Lara Cirnigliaro
- Child Neurology and Psychiatry Section, Department of Clinical and Experimental Medicine University of Catania Catania
| | - Paolo Bianchi
- Neonatology Unit Giovanni XXIII Hospital Bergamo Italy
| | - Luisa Sturiale
- CNR, Institute for Polymers, Composites and Biomaterials IPCB Catania
| | - Domenico Garozzo
- CNR, Institute for Polymers, Composites and Biomaterials IPCB Catania
| | | | | | - Renata Rizzo
- Child Neurology and Psychiatry Section, Department of Clinical and Experimental Medicine University of Catania Catania
| | - Gert Matthijs
- Department of Human Genetics KU Leuven Leuven Belgium
| | - Agata Fiumara
- Referral Centre for Inherited Metabolic Disease Department of Clinical and Experimental Medicine, University of Catania Catania
| | - Jaak Jaeken
- Department of Development and Regeneration, Centre for Metabolic Diseases University Hospital Gasthuisberg, KU Leuven Catania Belgium
| | - Rita Barone
- Child Neurology and Psychiatry Section, Department of Clinical and Experimental Medicine University of Catania Catania
- CNR, Institute for Polymers, Composites and Biomaterials IPCB Catania
- Referral Centre for Inherited Metabolic Disease Department of Clinical and Experimental Medicine, University of Catania Catania
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Liver Involvement in Congenital Disorders of Glycosylation: A Systematic Review. J Pediatr Gastroenterol Nutr 2021; 73:444-454. [PMID: 34173795 PMCID: PMC9255677 DOI: 10.1097/mpg.0000000000003209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
An ever-increasing number of disturbances in glycosylation have been described to underlie certain unexplained liver diseases presenting either almost isolated or in a multi-organ context. We aimed to update previous literature screenings which had identified up to 23 forms of congenital disorders of glycosylation (CDG) with associated liver disease. We conducted a comprehensive literature search of three scientific electronic databases looking at articles published during the last 20 years (January 2000-October 2020). Eligible studies were case reports/series reporting liver involvement in CDG patients. Our systematic review led us to point out 41 forms of CDG where the liver is primarily affected (n = 7) or variably involved in a multisystem disease with mandatory neurological abnormalities (n = 34). Herein we summarize individual clinical and laboratory presentation characteristics of these 41 CDG and outline their main presentation and diagnostic cornerstones with the aid of two synoptic tables. Dietary supplementation strategies have hitherto been investigated only in seven of these CDG types with liver disease, with a wide range of results. In conclusion, the systematic review recognized a liver involvement in a somewhat larger number of CDG variants corresponding to about 30% of the total of CDG so far reported, and it is likely that the number may increase further. This information could assist in an earlier correct diagnosis and a possibly proper management of these disorders.
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Lugli L, Pollazzon M, Bigoni S, Caraffi SG, Ferlini A, Ferri L, Morrone A, Calabrese O, Iughetti L, Garavelli L, Berardi A. Correspondence on "Disorder of sex development associated with a novel homozygous nonsense mutation in COG6 expands the phenotypic spectrum of COG6-CDG". Am J Med Genet A 2021; 188:382-383. [PMID: 34562059 DOI: 10.1002/ajmg.a.62511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/02/2021] [Accepted: 09/05/2021] [Indexed: 12/15/2022]
Affiliation(s)
- Licia Lugli
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Modena, Italy
| | - Marzia Pollazzon
- Medical Genetics Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Stefania Bigoni
- Department of Medical Sciences, Medical Genetics Unit, Ferrara University Hospital, Ferrara, Italy
| | | | - Alessandra Ferlini
- Department of Medical Sciences, Medical Genetics Unit, Ferrara University Hospital, Ferrara, Italy
| | - Lorenzo Ferri
- Molecular and Cell Biology Laboratory of Neurometabolic Diseases, Neuroscience Department, Meyer Children's Hospital, Florence, Italy
| | - Amelia Morrone
- Molecular and Cell Biology Laboratory of Neurometabolic Diseases, Neuroscience Department, Meyer Children's Hospital, Florence, Italy.,Department of NEUROFARBA, University of Florence, Florence, Italy
| | - Olga Calabrese
- Medical Genetic Unit, University Hospital of Modena, Modena, Italy
| | - Lorenzo Iughetti
- Post-Graduated School of Pediatrics, Department of Medical and Surgical Sciences for Mother, Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Livia Garavelli
- Medical Genetics Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Alberto Berardi
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Modena, Italy
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Paprocka J, Jezela-Stanek A, Tylki-Szymańska A, Grunewald S. Congenital Disorders of Glycosylation from a Neurological Perspective. Brain Sci 2021; 11:brainsci11010088. [PMID: 33440761 PMCID: PMC7827962 DOI: 10.3390/brainsci11010088] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/01/2021] [Accepted: 01/04/2021] [Indexed: 12/11/2022] Open
Abstract
Most plasma proteins, cell membrane proteins and other proteins are glycoproteins with sugar chains attached to the polypeptide-glycans. Glycosylation is the main element of the post-translational transformation of most human proteins. Since glycosylation processes are necessary for many different biological processes, patients present a diverse spectrum of phenotypes and severity of symptoms. The most frequently observed neurological symptoms in congenital disorders of glycosylation (CDG) are: epilepsy, intellectual disability, myopathies, neuropathies and stroke-like episodes. Epilepsy is seen in many CDG subtypes and particularly present in the case of mutations in the following genes: ALG13, DOLK, DPAGT1, SLC35A2, ST3GAL3, PIGA, PIGW, ST3GAL5. On brain neuroimaging, atrophic changes of the cerebellum and cerebrum are frequently seen. Brain malformations particularly in the group of dystroglycanopathies are reported. Despite the growing number of CDG patients in the world and often neurological symptoms dominating in the clinical picture, the number of performed screening tests eg transferrin isoforms is systematically decreasing as broadened genetic testing is recently more favored. The aim of the review is the summary of selected neurological symptoms in CDG described in the literature in one paper. It is especially important for pediatric neurologists not experienced in the field of metabolic medicine. It may help to facilitate the diagnosis of this expanding group of disorders. Biochemically, this paper focuses on protein glycosylation abnormalities.
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Affiliation(s)
- Justyna Paprocka
- Department of Pediatric Neurology, Faculty of Medical Science in Katowice, Medical University of Silesia, 40-752 Katowice, Poland
- Correspondence: ; Tel.: +48-606-415-888
| | - Aleksandra Jezela-Stanek
- Department of Genetics and Clinical Immunology, National Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland;
| | - Anna Tylki-Szymańska
- Department of Pediatrics, Nutrition and Metabolic Diseases, The Children’s Memorial Health Institute, W 04-730 Warsaw, Poland;
| | - Stephanie Grunewald
- NIHR Biomedical Research Center (BRC), Metabolic Unit, Great Ormond Street Hospital and Institute of Child Health, University College London, London SE1 9RT, UK;
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Lugli L, Bariola MC, Ferri L, Lucaccioni L, Bertucci E, Cattini U, Torcetta F, Morrone A, Iughetti L, Berardi A. Disorder of sex development associated with a novel homozygous nonsense mutation in COG6 expands the phenotypic spectrum of COG6-CDG. Am J Med Genet A 2021; 185:1187-1194. [PMID: 33394555 DOI: 10.1002/ajmg.a.62061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 12/18/2020] [Accepted: 12/18/2020] [Indexed: 12/15/2022]
Abstract
Congenital disorders of glycosylation (CDG) are an expanding group of metabolic disorders that result from abnormal protein glycosylation. A special subgroup of CDG type II comprises defects in the Conserved Oligomeric Golgi Complex (COG). In order to further delineate the genotypic and phenotypic spectrum of COG complex defect, we describe a novel variant of COG6 gene found in homozygosity in a Moroccan patient with severe presentation of COG6-CDG (OMIM #614576). We compared the phenotype of our patient with other previously reported COG6-CDG cases. Common features in COG6-CDG are facial dysmorphism, growth retardation, microcephaly, developmental disability, liver or gastrointestinal disease, recurrent infections, hypohidrosis/hyperthermia. In addition to these phenotypic features, our patient exhibited a disorder of sexual differentiation, which has rarely been reported in COG6-CDG. We hypothesize that the severe COG6 gene mutation interferes with glycosylation of a disintegrin and metalloprotease family members, inhibiting the correct gonadal distal tip cells migration, fundamental for the genitalia morphogenesis. This report broadens the genetic and phenotypic spectrum of COG6-CDG and provides further supportive evidence that COG6-CDG can present as a disorder of sexual differentiation.
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Affiliation(s)
- Licia Lugli
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Modena, Italy
| | - Maria Carolina Bariola
- Post-graduated School of Pediatrics, Department of Medical and Surgical Sciences for Mother, Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Lorenzo Ferri
- Molecular and Cell Biology Laboratory of Neurometabolic Diseases, Neuroscience Department, Meyer Children's Hospital, Florence, Italy
| | - Laura Lucaccioni
- Pediatric Unit, Mother-Child Department, University Hospital of Modena, Modena, Italy
| | - Emma Bertucci
- Obstetric-Gynecology Unit, Mother-Child Department, University Hospital of Modena, Modena, Italy
| | - Umberto Cattini
- Post-graduated School of Pediatrics, Department of Medical and Surgical Sciences for Mother, Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesco Torcetta
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Modena, Italy
| | - Amelia Morrone
- Molecular and Cell Biology Laboratory of Neurometabolic Diseases, Neuroscience Department, Meyer Children's Hospital, Florence, Italy.,Department of Neurosciences, Psychology, Pharmacology and Child Health, University of Florence, Florence, Italy
| | - Lorenzo Iughetti
- Post-graduated School of Pediatrics, Department of Medical and Surgical Sciences for Mother, Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Alberto Berardi
- Neonatology Unit, Mother-Child Department, University Hospital of Modena, Modena, Italy
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