1
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Chettri D, Chirania M, Boro D, Verma AK. Glycoconjugates: Advances in modern medicines and human health. Life Sci 2024; 348:122689. [PMID: 38710281 DOI: 10.1016/j.lfs.2024.122689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/23/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024]
Abstract
Glycans and their glycoconjugates are complex biomolecules that are crucial for various biological processes. Glycoconjugates are found in all domains of life. They are covalently linked to key biomolecules such as proteins and lipids to play a pivotal role in cell signaling, adhesion, and recognition. The diversity of glycan structures and the associated complexity of glycoconjugates is the reason for their role in intricate biosynthetic pathways. Glycoconjugates play an important role in various diseases where they are actively involved in the immune response as well as in the pathogenicity of infectious diseases. In addition, various autoimmune diseases have been linked to glycosylation defects of different biomolecules, making them an important molecule in the field of medicine. The glycoconjugates have been explored for the development of therapeutics and vaccines, representing a breakthrough in medical science. They also hold significance in research studies to understand the mechanisms behind various biological processes. Finally, glycoconjugates have found an emerging role in various industrial and environmental applications which have been discussed here.
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Affiliation(s)
- Dixita Chettri
- Department of Microbiology, Sikkim University, Gangtok, Sikkim 737102, India
| | - Manisha Chirania
- Department of Microbiology, Sikkim University, Gangtok, Sikkim 737102, India
| | - Deepjyoti Boro
- Department of Microbiology, Sikkim University, Gangtok, Sikkim 737102, India
| | - Anil Kumar Verma
- Department of Microbiology, Sikkim University, Gangtok, Sikkim 737102, India.
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2
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Van Den Bergh A, Bailly B, Guillon P, von Itzstein M, Dirr L. Novel insights into the host cell glycan binding profile of human metapneumovirus. J Virol 2024; 98:e0164123. [PMID: 38690874 PMCID: PMC11237588 DOI: 10.1128/jvi.01641-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/28/2024] [Indexed: 05/03/2024] Open
Abstract
Numerous viruses have been found to exploit glycoconjugates expressed on human cells as their initial attachment factor for viral entry and infection. The virus-cell glycointeractome, when characterized, may serve as a template for antiviral drug design. Heparan sulfate proteoglycans extensively decorate the human cell surface and were previously described as a primary receptor for human metapneumovirus (HMPV). After respiratory syncytial virus, HMPV is the second most prevalent respiratory pathogen causing respiratory tract infection in young children. To date, there is neither vaccine nor drug available to prevent or treat HMPV infection. Using a multidisciplinary approach, we report for the first time the glycointeractome of the HMPV fusion (F) protein, a viral surface glycoprotein that is essential for target-cell recognition, attachment, and entry. Our glycan microarray and surface plasmon resonance results suggest that Galβ1-3/4GlcNAc moieties that may be sialylated or fucosylated are readily recognized by HMPV F. The bound motifs are highly similar to the N-linked and O-linked glycans primarily expressed on the human lung epithelium. We demonstrate that the identified glycans have the potential to compete with the cellular receptors used for HMPV entry and consequently block HMPV infection. We found that lacto-N-neotetraose demonstrated the strongest HMPV binding inhibition in a cell infection assay. Our current findings offer an encouraging and novel avenue for the design of anti-HMPV drug candidates using oligosaccharide templates.IMPORTANCEAll cells are decorated with a dense coat of sugars that makes a sugar code. Many respiratory viruses exploit this sugar code by binding to these sugars to cause infection. Human metapneumovirus is a leading cause for acute respiratory tract infections. Despite its medical importance, there is no vaccine or antiviral drug available to prevent or treat human metapneumovirus infection. This study investigates how human metapneumovirus binds to sugars in order to more efficiently infect the human host. We found that human metapneumovirus binds to a diverse range of sugars and demonstrated that these sugars can ultimately block viral infection. Understanding how viruses can take advantage of the sugar code on our cells could identify new intervention and treatment strategies to combat viral disease.
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Affiliation(s)
| | - Benjamin Bailly
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Patrice Guillon
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Mark von Itzstein
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Larissa Dirr
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
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3
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Yuasa H, Morino N, Wagatsuma T, Munekane M, Ueda S, Matsunaga M, Uchida Y, Katayama T, Katoh T, Kambe T. ZNT5-6 and ZNT7 play an integral role in protein N-glycosylation by supplying Zn 2+ to Golgi α-mannosidase II. J Biol Chem 2024; 300:107378. [PMID: 38762179 PMCID: PMC11209640 DOI: 10.1016/j.jbc.2024.107378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/20/2024] [Accepted: 05/07/2024] [Indexed: 05/20/2024] Open
Abstract
The stepwise addition of monosaccharides to N-glycans attached to client proteins to generate a repertoire of mature proteins involves a concerted action of many glycosidases and glycosyltransferases. Here, we report that Golgi α-mannosidase II (GMII), a pivotal enzyme catalyzing the first step in the conversion of hybrid- to complex-type N-glycans, is activated by Zn2+ supplied by the early secretory compartment-resident ZNT5-ZNT6 heterodimers (ZNT5-6) and ZNT7 homodimers (ZNT7). Loss of ZNT5-6 and ZNT7 function results in marked accumulation of hybrid-type and complex/hybrid glycans with concomitant reduction of complex- and high-mannose-type glycans. In cells lacking the ZNT5-6 and ZNT7 functions, the GMII activity is substantially decreased. In contrast, the activity of its homolog, lysosomal mannosidase (LAMAN), is not decreased. Moreover, we show that the growth of pancreatic cancer MIA PaCa-2 cells lacking ZNT5-6 and ZNT7 is significantly decreased in a nude mouse xenograft model. Our results indicate the integral roles of ZNT5-6 and ZNT7 in N-glycosylation and highlight their potential as novel target proteins for cancer therapy.
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Affiliation(s)
- Hana Yuasa
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Naho Morino
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Takumi Wagatsuma
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Masayuki Munekane
- Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Sachiko Ueda
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Mayu Matsunaga
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Yasuo Uchida
- Department of Molecular Systems Pharmaceutics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima City, Japan
| | - Takane Katayama
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Toshihiko Katoh
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Taiho Kambe
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, Japan.
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4
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Swisa A, Kieckhaefer J, Daniel SG, El-Mekkoussi H, Kolev HM, Tigue M, Jin C, Assenmacher CA, Dohnalová L, Thaiss CA, Karlsson NG, Bittinger K, Kaestner KH. The evolutionarily ancient FOXA transcription factors shape the murine gut microbiome via control of epithelial glycosylation. Dev Cell 2024:S1534-5807(24)00323-X. [PMID: 38821056 DOI: 10.1016/j.devcel.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/19/2023] [Accepted: 05/09/2024] [Indexed: 06/02/2024]
Abstract
Evolutionary adaptation of multicellular organisms to a closed gut created an internal microbiome differing from that of the environment. Although the composition of the gut microbiome is impacted by diet and disease state, we hypothesized that vertebrates promote colonization by commensal bacteria through shaping of the apical surface of the intestinal epithelium. Here, we determine that the evolutionarily ancient FOXA transcription factors control the composition of the gut microbiome by establishing favorable glycosylation on the colonic epithelial surface. FOXA proteins bind to regulatory elements of a network of glycosylation enzymes, which become deregulated when Foxa1 and Foxa2 are deleted from the intestinal epithelium. As a direct consequence, microbial composition shifts dramatically, and spontaneous inflammatory bowel disease ensues. Microbiome dysbiosis was quickly reversed upon fecal transplant into wild-type mice, establishing a dominant role for the host epithelium, in part mediated by FOXA factors, in controlling symbiosis in the vertebrate holobiont.
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Affiliation(s)
- Avital Swisa
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Julia Kieckhaefer
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Scott G Daniel
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Hilana El-Mekkoussi
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Hannah M Kolev
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Mark Tigue
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA
| | - Chunsheng Jin
- Department of Medical Biochemistry, Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Charles-Antoine Assenmacher
- Comparative Pathology Core, Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, USA
| | - Lenka Dohnalová
- Microbiology Department, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Christoph A Thaiss
- Microbiology Department, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Niclas G Karlsson
- Department of Medical Biochemistry, Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Life Sciences and Health, Faculty of Health Sciences, Oslo Metropolitan University, 0130 Oslo, Norway
| | - Kyle Bittinger
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Klaus H Kaestner
- Department of Genetics and Center for Molecular Studies in Liver and Digestive Diseases, Perelman School of Medicine, University of Pennsylvania, 12-126 Smilow Center for Translational Research, 3400 Civic Center Boulevard, Philadelphia, PA 19104-5156, USA.
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5
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Zemkollari M, Oostenbrink C, Grabherr R, Staudacher E. Molecular cloning, characterisation and molecular modelling of two novel T-synthases from mollusc origin. Glycobiology 2024; 34:cwae013. [PMID: 38366999 PMCID: PMC11005171 DOI: 10.1093/glycob/cwae013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/09/2024] [Accepted: 02/11/2024] [Indexed: 02/19/2024] Open
Abstract
The glycoprotein-N-acetylgalactosamine β1,3-galactosyltransferase, known as T-synthase (EC 2.4.1.122), plays a crucial role in the synthesis of the T-antigen, which is the core 1 O-glycan structure. This enzyme transfers galactose from UDP-Gal to GalNAc-Ser/Thr. The T-antigen has significant functions in animal development, immune response, and recognition processes. Molluscs are a successful group of animals that inhabit various environments, such as freshwater, marine, and terrestrial habitats. They serve important roles in ecosystems as filter feeders and decomposers but can also be pests in agriculture and intermediate hosts for human and cattle parasites. The identification and characterization of novel carbohydrate active enzymes, such as T-synthase, can aid in the understanding of molluscan glycosylation abilities and their adaptation and survival abilities. Here, the T-synthase enzymes from the snail Pomacea canaliculata and the oyster Crassostrea gigas are identified, cloned, expressed, and characterized, with a focus on structural elucidation. The synthesized enzymes display core 1 β1,3-galactosyltransferase activity using pNP-α-GalNAc as substrate and exhibit similar biochemical parameters as previously characterised T-synthases from other species. While the enzyme from C. gigas shares the same structural parameters with the other enzymes characterised so far, the T-synthase from P. canaliculata lacks the consensus sequence CCSD, which was previously considered indispensable.
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Affiliation(s)
- Marilica Zemkollari
- Department of Chemistry, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Chris Oostenbrink
- Department of Material Sciences and Process Engineering, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Reingard Grabherr
- Department of Biotechnology, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Erika Staudacher
- Department of Chemistry, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
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Roy R. Cancer cells and viruses share common glycoepitopes: exciting opportunities toward combined treatments. Front Immunol 2024; 15:1292588. [PMID: 38495885 PMCID: PMC10940920 DOI: 10.3389/fimmu.2024.1292588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 02/06/2024] [Indexed: 03/19/2024] Open
Abstract
Aberrant glycosylation patterns of glycoproteins and glycolipids have long been recognized as one the major hallmarks of cancer cells that has led to numerous glycoconjugate vaccine attempts. These abnormal glycosylation profiles mostly originate from the lack of key glycosyltransferases activities, mutations, over expressions, or modifications of the requisite chaperone for functional folding. Due to their relative structural simplicity, O-linked glycans of the altered mucin family of glycoproteins have been particularly attractive in the design of tumor associated carbohydrate-based vaccines. Several such glycoconjugate vaccine formulations have generated potent monoclonal anti-carbohydrate antibodies useful as diagnostic and immunotherapies in the fight against cancer. Paradoxically, glycoproteins related to enveloped viruses also express analogous N- and O-linked glycosylation patterns. However, due to the fact that viruses are not equipped with the appropriate glycosyl enzyme machinery, they need to hijack that of the infected host cells. Although the resulting N-linked glycans are very similar to those of normal cells, some of their O-linked glycan patterns often share the common structural simplicity to those identified on tumor cells. Consequently, given that both cancer cells and viral glycoproteins share both common N- and O-linked glycoepitopes, glycoconjugate vaccines could be highly attractive to generate potent immune responses to target both conditions.
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Affiliation(s)
- René Roy
- Glycosciences and Nanomaterial Laboratory, Université du Québec à Montréal, Montréal, QC, Canada
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7
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Michelis S, Pompili C, Niedergang F, Fattaccioli J, Dumat B, Mallet JM. FRET-Sensing of Multivalent Protein Binding at the Interface of Biomimetic Microparticles Functionalized with Fluorescent Glycolipids. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9669-9679. [PMID: 38349191 DOI: 10.1021/acsami.3c15067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Cell adhesion is a central process in cellular communication and regulation. Adhesion sites are triggered by specific ligand-receptor interactions inducing the clustering of both partners at the contact point. Investigating cell adhesion using microscopy techniques requires targeted fluorescent particles with a signal sensitive to the clustering of receptors and ligands at the interface. Herein, we report on simple cell or bacterial mimics, based on liquid microparticles made of lipiodol functionalized with custom-designed fluorescent lipids. These lipids are targeted toward lectins or biotin membrane receptors, and the resulting particles can be specifically identified and internalized by cells, as demonstrated by their phagocytosis in primary murine bone marrow-derived macrophages. We also evidence the possibility to sense the binding of a multivalent lectin, concanavalin A, in solution by monitoring the energy transfer between two matching fluorescent lipids on the surface of the particles. We anticipate that these liquid particle-based sensors, which are able to report via Förster resonance energy transfer (FRET) on the movement of ligands on their interface upon protein binding, will provide a useful tool to study receptor binding and cooperation during adhesion processes such as phagocytosis.
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Affiliation(s)
- Sophie Michelis
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Chiara Pompili
- Université Paris Cité, Institut Cochin, INSERM, CNRS, 75014 Paris, France
| | | | - Jacques Fattaccioli
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL Université, Sorbonne Université, CNRS, 75005 Paris, France
- Institut Pierre-Gilles de Gennes pour la Microfluidique, 75005 Paris, France
| | - Blaise Dumat
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Jean-Maurice Mallet
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
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8
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Gutierrez Reyes CD, Sanni A, Mogut D, Adeniyi M, Ahmadi P, Atashi M, Onigbinde S, Mechref Y. Targeted Analysis of Permethylated N-Glycans Using MRM/PRM Approaches. Methods Mol Biol 2024; 2762:251-266. [PMID: 38315370 DOI: 10.1007/978-1-0716-3666-4_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Targeted mass spectrometric analysis is widely employed across various omics fields as a validation strategy due to its high sensitivity and accuracy. The approach has been successfully employed for the structural analysis of proteins, glycans, lipids, and metabolites. Multiple reaction monitoring (MRM) and parallel reaction monitoring (PRM) have been the methods of choice for targeted structural studies of biomolecules. These target analyses simplify the analytical workflow, reduce background interference, and increase selectivity/specificity, allowing for a reliable quantification of permethylated N-glycans in complex biological matrices.
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Affiliation(s)
| | - Akeem Sanni
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
| | - Damir Mogut
- Department of Food Biochemistry, Faculty of Food Science, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Moyinoluwa Adeniyi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
| | - Parisa Ahmadi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
| | - Mojgan Atashi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
| | - Sherifdeen Onigbinde
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, USA.
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9
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De Marco Verissimo C, Cwiklinski K, Nilsson J, Mirgorodskaya E, Jin C, Karlsson NG, Dalton JP. Glycan Complexity and Heterogeneity of Glycoproteins in Somatic Extracts and Secretome of the Infective Stage of the Helminth Fasciola hepatica. Mol Cell Proteomics 2023; 22:100684. [PMID: 37993102 PMCID: PMC10755494 DOI: 10.1016/j.mcpro.2023.100684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/17/2023] [Accepted: 11/19/2023] [Indexed: 11/24/2023] Open
Abstract
Fasciola hepatica is a global helminth parasite of humans and their livestock. The invasive stage of the parasite, the newly excysted juvenile (NEJs), relies on glycosylated excreted-secreted (ES) products and surface/somatic molecules to interact with host cells and tissues and to evade the host's immune responses, such as disarming complement and shedding bound antibody. While -omics technologies have generated extensive databases of NEJs' proteins and their expression, detailed knowledge of the glycosylation of proteins is still lacking. Here, we employed glycan, glycopeptide, and proteomic analyses to determine the glycan profile of proteins within the NEJs' somatic (Som) and ES extracts. These analyses characterized 123 NEJ glycoproteins, 71 of which are secreted proteins, and allowed us to map 356 glycopeptides and their associated 1690 N-glycan and 37 O-glycan forms to their respective proteins. We discovered abundant micro-heterogeneity in the glycosylation of individual glycosites and between different sites of multi-glycosylated proteins. The global heterogeneity across NEJs' glycoproteome was refined to 53 N-glycan and 16 O-glycan structures, ranging from highly truncated paucimannosidic structures to complex glycans carrying multiple phosphorylcholine (PC) residues, and included various unassigned structures due to unique linkages, particularly in pentosylated O-glycans. Such exclusive glycans decorate some well-known secreted molecules involved in host invasion, including cathepsin B and L peptidases, and a variety of membrane-bound glycoproteins, suggesting that they participate in host interactions. Our findings show that F. hepatica NEJs generate exceptional protein variability via glycosylation, suggesting that their molecular portfolio that communicates with the host is far more complex than previously anticipated by transcriptomic and proteomic analyses. This study opens many avenues to understand the glycan biology of F. hepatica throughout its life-stages, as well as other helminth parasites, and allows us to probe the glycosylation of individual NEJs proteins in the search for innovative diagnostics and vaccines against fascioliasis.
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Affiliation(s)
- Carolina De Marco Verissimo
- Molecular Parasitology Lab (MPL) - Centre for One Health and Ryan Institute, School of Natural Science, National University of Ireland Galway, Galway, Republic of Ireland.
| | - Krystyna Cwiklinski
- Molecular Parasitology Lab (MPL) - Centre for One Health and Ryan Institute, School of Natural Science, National University of Ireland Galway, Galway, Republic of Ireland; Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Jonas Nilsson
- Proteomics Core Facility, Sahlgrenska Academy of Science, University of Gothenburg, Gothenburg, Sweden
| | - Ekaterina Mirgorodskaya
- Proteomics Core Facility, Sahlgrenska Academy of Science, University of Gothenburg, Gothenburg, Sweden
| | - Chunsheng Jin
- Proteomics Core Facility, Sahlgrenska Academy of Science, University of Gothenburg, Gothenburg, Sweden
| | - Niclas G Karlsson
- Department of Life Science and Health, Faculty of Health Science, Oslo Metropolitan University, Oslo, Norway
| | - John P Dalton
- Molecular Parasitology Lab (MPL) - Centre for One Health and Ryan Institute, School of Natural Science, National University of Ireland Galway, Galway, Republic of Ireland
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10
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Goth CK, Mehta AY, McQuillan AM, Baker KJ, Hanes MS, Park SS, Stavenhagen K, Hjortø GM, Heimburg-Molinaro J, Chaikof EL, Rosenkilde MM, Cummings RD. Chemokine binding to PSGL-1 is controlled by O-glycosylation and tyrosine sulfation. Cell Chem Biol 2023; 30:893-905.e7. [PMID: 37463583 PMCID: PMC10530560 DOI: 10.1016/j.chembiol.2023.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 03/14/2023] [Accepted: 06/14/2023] [Indexed: 07/20/2023]
Abstract
Protein glycosylation influences cellular recognition and regulates protein interactions, but how glycosylation functions alongside other common posttranslational modifications (PTMs), like tyrosine sulfation (sTyr), is unclear. We produced a library of 53 chemoenzymatically synthesized glycosulfopeptides representing N-terminal domains of human and murine P-selectin glycoprotein ligand-1 (PSGL-1), varying in sTyr and O-glycosylation (structure and site). Using these, we identified key roles of PSGL-1 O-glycosylation and sTyr in controlling interactions with specific chemokines. Results demonstrate that sTyr positively affects CCL19 and CCL21 binding to PSGL-1 N terminus, whereas O-glycan branching and sialylation reduced binding. For murine PSGL-1, interference between PTMs is greater, attributed to proximity between the two PTMs. Using fluorescence polarization, we found sTyr is a positive determinant for some chemokines. We showed that synthetic sulfopeptides are potent in decreasing chemotaxis of human dendritic cells toward CCL19 and CCL21. Our results provide new research avenues into the interplay of PTMs regulating leukocyte/chemokine interactions.
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Affiliation(s)
- Christoffer K Goth
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA; Laboratory for Molecular Pharmacology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Akul Y Mehta
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA
| | - Alyssa M McQuillan
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA
| | - Kelly J Baker
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA
| | - Melinda S Hanes
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA
| | - Simon S Park
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA
| | - Kathrin Stavenhagen
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA
| | - Gertrud M Hjortø
- Laboratory for Molecular Pharmacology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jamie Heimburg-Molinaro
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA
| | - Elliot L Chaikof
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA
| | - Mette M Rosenkilde
- Laboratory for Molecular Pharmacology, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, National Center for Functional Glycomics, Harvard Medical School, Boston, MA 02215, USA.
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11
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Hu W, Ding R, Wang M, Huang P, Wei X, Hu X, Hu T. Side population cells derived from hUCMSCs and hPMSCs could inhibit the malignant behaviors of Tn + colorectal cancer cells from modifying their O-glycosylation status. Stem Cell Res Ther 2023; 14:145. [PMID: 37237420 DOI: 10.1186/s13287-023-03334-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 04/07/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Cosmc (C1GalT1C1) mutation could cause aberrant O-glycosylation and result in expression of Tn antigen on the surface of tumor cells (Tn+ cells), which is associated with the metastasis and prognosis of cancer progression. Mesenchymal stem cells (MSCs) could participate in immunoregulation, tissue damage repair, and tumor inhibition and be seen as an ideal candidate for tumor therapy due to their inherent capacity to migrate to tumor sites. However, their therapeutic effectiveness in different tumors is inconsistent and still controversial. Of note, emerging data reveal that side population (SP) cells have a stronger multilineage developmental potential than main population cells and can function as stem/progenitor cells. The effect of SP cells derived from MSCs on the biological behaviors and the O-glycosylation status of tumor cells remains unclear. METHODS SP cells were isolated from human umbilical cord MSCs (hUCMSCs) and human placenta MSCs (hPMSCs). Tn+ cells (LS174T-Tn+ and HT-29-Tn+ cells) and matching Tn- cells (LS174T-Tn- and HT-29-Tn- cells) were isolated from human colorectal cancer cell (CRC) lines LS174T and HT-29 by immune magnetic beads. The proliferation, migration, apoptosis, Tn antigen expression, and O-glycome in Tn+ and Tn- CRC cells before and after co-cultured with SP-MSCs were detected using real-time cell Analysis (RTCA), flow cytometry (FCM), and cellular O-glycome reporter/amplification (CORA), respectively. Cosmc protein and O-glycosyltransferase (T-synthase and C3GnT) activity in CRC cells were, respectively, assessed using western blotting and fluorescence method. RESULTS Both SP cells derived from hUCMSCs and hPMSCs could inhibit proliferation and migration, promote apoptosis of CRC cells, significantly reduce Tn antigen expression on Tn+ CRC cells, generate new core 1-, 2-, and 3-derived O-glycans, increase T-synthase and C3GnT activity, and elevate the levels of Cosmc and T-synthase protein. CONCLUSION SP-hUCMSCs and SP-hPMSCs could inhibit proliferation and migration and promote apoptosis of Tn+ CRC cells via increasing O-glycosyltransferase activity to modify O-glycosylation status, which further adds a new dimension to the treatment of CRC.
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Affiliation(s)
- Wen Hu
- Department of Immunology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Ruisong Ding
- Department of Immunology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Mengyang Wang
- Department of Immunology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Panpan Huang
- Department of Immunology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Xia Wei
- Department of Immunology, Binzhou Medical University, Yantai, 264003, People's Republic of China
| | - Xingyou Hu
- Qingdao University, Qingdao, 266071, People's Republic of China.
| | - Tao Hu
- Department of Immunology, Binzhou Medical University, Yantai, 264003, People's Republic of China.
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12
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Bueno-Sánchez JC, Gómez-Gutiérrez AM, Maldonado-Estrada JG, Quintana-Castillo JC. Expression of placental glycans and its role in regulating peripheral blood NK cells during preeclampsia: a perspective. Front Endocrinol (Lausanne) 2023; 14:1087845. [PMID: 37206444 PMCID: PMC10190602 DOI: 10.3389/fendo.2023.1087845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 03/03/2023] [Indexed: 05/21/2023] Open
Abstract
Preeclampsia is a pregnancy-related multisystem disorder characterized by altered trophoblast invasion, oxidative stress, exacerbation of systemic inflammatory response, and endothelial damage. The pathogenesis includes hypertension and mild-to-severe microangiopathy in the kidney, liver, placenta, and brain. The main mechanisms involved in its pathogenesis have been proposed to limit trophoblast invasion and increase the release of extracellular vesicles from the syncytiotrophoblast into the maternal circulation, exacerbating the systemic inflammatory response. The placenta expresses glycans as part of its development and maternal immune tolerance during gestation. The expression profile of glycans at the maternal-fetal interface may play a fundamental role in physiological pregnancy changes and disorders such as preeclampsia. It is unclear whether glycans and their lectin-like receptors are involved in the mechanisms of maternal-fetal recognition by immune cells during pregnancy homeostasis. The expression profile of glycans appears to be altered in hypertensive disorders of pregnancy, which could lead to alterations in the placental microenvironment and vascular endothelium in pregnancy conditions such as preeclampsia. Glycans with immunomodulatory properties at the maternal-fetal interface are altered in early-onset severe preeclampsia, implying that innate immune system components, such as NK cells, exacerbate the systemic inflammatory response observed in preeclampsia. In this article, we discuss the evidence for the role of glycans in gestational physiology and the perspective of glycobiology on the pathophysiology of hypertensive disorders in gestation.
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Affiliation(s)
- Julio C. Bueno-Sánchez
- Reproduction Group, Department of Physiology and Biochemistry, School of Medicine, Universidad de Antioquia, Medellín, Colombia
- Department of Obstetrics and Gynecology, School of Medicine, Universidad de Antioquia, Medellín, Colombia
- Red Iberoamericana de Alteraciones Vasculares en Trastornos del Embarazo (RIVATREM), Chillan, Chile
| | - Alejandra M. Gómez-Gutiérrez
- Reproduction Group, Department of Physiology and Biochemistry, School of Medicine, Universidad de Antioquia, Medellín, Colombia
| | - Juan G. Maldonado-Estrada
- One Health and Veterinary Innovative Research & Development (OHVRI) Research Group, Escuela de Medicina Veterinaria, Universidad de Antioquia, Medellín, Colombia
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Shi H, Shao B. LFA-1 Activation in T-Cell Migration and Immunological Synapse Formation. Cells 2023; 12:cells12081136. [PMID: 37190045 DOI: 10.3390/cells12081136] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/02/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
Integrin LFA-1 plays a critical role in T-cell migration and in the formation of immunological synapses. LFA-1 functions through interacting with its ligands with differing affinities: low, intermediate, and high. Most prior research has studied how LFA-1 in the high-affinity state regulates the trafficking and functions of T cells. LFA-1 is also presented in the intermediate-affinity state on T cells, however, the signaling to activate LFA-1 to the intermediate-affinity state and the role of LFA-1 in this affinity state both remain largely elusive. This review briefly summarizes the activation and roles of LFA-1 with varied ligand-binding affinities in the regulation of T-cell migration and immunological synapse formation.
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Affiliation(s)
- Huiping Shi
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Bojing Shao
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
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14
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Sanyal R, Kumar S, Pattanayak A, Kar A, Bishi SK. Optimizing raffinose family oligosaccharides content in plants: A tightrope walk. FRONTIERS IN PLANT SCIENCE 2023; 14:1134754. [PMID: 37056499 PMCID: PMC10088399 DOI: 10.3389/fpls.2023.1134754] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
Plants synthesize various compounds for their growth, metabolism, and stress mitigation, and one such group of compounds is the raffinose family of oligosaccharides (RFOs). RFOs are non-reducing oligosaccharides having galactose residues attached to a sucrose moiety. They act as carbohydrate reserves in plants, assisting in seed germination, desiccation tolerance, and biotic/abiotic stress tolerance. Although legumes are among the richest sources of dietary proteins, the direct consumption of legumes is hindered by an excess of RFOs in the edible parts of the plant, which causes flatulence in humans and monogastric animals. These opposing characteristics make RFOs manipulation a complicated tradeoff. An in-depth knowledge of the chemical composition, distribution pattern, tissue mobilization, and metabolism is required to optimize the levels of RFOs. The most recent developments in our understanding of RFOs distribution, physiological function, genetic regulation of their biosynthesis, transport, and degradation in food crops have been covered in this review. Additionally, we have suggested a few strategies that can sustainably reduce RFOs in order to solve the flatulence issue in animals. The comprehensive information in this review can be a tool for researchers to precisely control the level of RFOs in crops and create low antinutrient, nutritious food with wider consumer acceptability.
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Affiliation(s)
- Rajarshi Sanyal
- School of Genomics and Molecular Breeding, ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand, India
- Division of Biochemistry, ICAR-Indian Agricultural Research Institute, Pusa, New Delhi, India
| | - Sandeep Kumar
- Automation & Plant Engineering Division, ICAR-National Institute of Secondary Agriculture, Ranchi, Jharkhand, India
| | - Arunava Pattanayak
- School of Genomics and Molecular Breeding, ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand, India
| | - Abhijit Kar
- Automation & Plant Engineering Division, ICAR-National Institute of Secondary Agriculture, Ranchi, Jharkhand, India
| | - Sujit K. Bishi
- School of Genomics and Molecular Breeding, ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand, India
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15
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Moghaddam FD, Heidari G, Zare EN, Djatoubai E, Paiva-Santos AC, Bertani FR, Wu A. Carbohydrate polymer-based nanocomposites for breast cancer treatment. Carbohydr Polym 2023; 304:120510. [PMID: 36641174 DOI: 10.1016/j.carbpol.2022.120510] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 12/30/2022]
Abstract
Breast cancer is known as the most common invasive malignancy in women with the highest mortality rate worldwide. This concerning disease may be presented in situ (relatively easier treatment) or be invasive, especially invasive ductal carcinoma which is highly worrisome nowadays. Among several strategies used in breast cancer treatment, nanotechnology-based targeted therapy is currently being investigated, as it depicts advanced technological features able of preventing drugs' side effects on normal cells while effectively acting on tumor cells. In this context, carbohydrate polymer-based nanocomposites have gained particular interest among the biomedical community for breast cancer therapy applications due to their advantage features, including abundance in nature, biocompatibility, straightforward fabrication methods, and good physicochemical properties. In this review, the physicochemical properties and biological activities of carbohydrate polymers and their derivate nanocomposites were discussed. Then, various methods for the fabrication of carbohydrate polymer-based nanocomposites as well as their application in breast cancer therapy and future perspectives were discussed.
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Affiliation(s)
- Farnaz Dabbagh Moghaddam
- Institute for Photonics and Nanotechnologies, National Research Council, Via Fosso del Cavaliere, 100, 00133, Rome, Italy
| | - Golnaz Heidari
- School of Chemistry, Damghan University, Damghan 36716-45667, Iran
| | | | - Essossimna Djatoubai
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MPFE), Xi'an Jiaotong University, 28 West Xianning Road, Xi'an 710049, PR China
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal
| | - Francesca Romana Bertani
- Institute for Photonics and Nanotechnologies, National Research Council, Via Fosso del Cavaliere, 100, 00133, Rome, Italy
| | - Aimin Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, Zhejiang, 325027, China
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Čoma M, Manning JC, Kaltner H, Gál P. The sweet side of wound healing: galectins as promising therapeutic targets in hemostasis, inflammation, proliferation, and maturation/remodeling. Expert Opin Ther Targets 2023; 27:41-53. [PMID: 36716023 DOI: 10.1080/14728222.2023.2175318] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Understanding the molecular and cellular processes involved in skin wound healing may pave the way for the development of innovative approaches to transforming the identified natural effectors into therapeutic tools. Based on the extensive involvement of the ga(lactoside-binding)lectin family in (patho)physiological processes, it has been well established that galectins are involved in a wide range of cell-cell and cell-matrix interactions. AREAS COVERED In the present paper, we provide an overview of the biological role of galectins in repair and regeneration, focusing on four main phases (hemostasis, inflammation, proliferation, and maturation/remodeling) of skin repair using basic wound models (open excision vs. sutured incision). EXPERT OPINION The reported data make a strong case for directing further efforts to treat excisional and incisional wounds differently. Functions of galectins essentially result from their modular presentation. In fact, Gal-1 seems to play a role in the early phases of healing (anti-inflammatory) and wound contraction, Gal-3 accelerates re-epithelization and increases tensile strength (scar inductor). Galectins have also become subject of redesigning by engineering to optimize the activity. Clinically relevant, these new tools derived from the carbohydrate recognition domain platform may also prove helpful for other purposes, such as potent antibacterial agglutinins and opsonins.
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Affiliation(s)
- Matúš Čoma
- Department of Biomedical Research, East-Slovak Institute of Cardiovascular Diseases Inc, Košice, Slovak Republic.,Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, Košice, Slovak Republic
| | - Joachim C Manning
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilian University, Munich, Germany
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilian University, Munich, Germany
| | - Peter Gál
- Department of Biomedical Research, East-Slovak Institute of Cardiovascular Diseases Inc, Košice, Slovak Republic.,Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, Košice, Slovak Republic.,Prague Burn Center, Third Faculty of Medicine, Charles University and University Hospital Královske Vinohrady, Prague, Czech Republic.,Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University, Bratislava, Slovak Republic
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17
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Wang W, Liu MY, Fei CJ, Li CH, Chen J. Molecular and functional characterization of a ladderlectin-like molecule from ayu (Plecoglossus altivelis). FISH & SHELLFISH IMMUNOLOGY 2022; 131:419-430. [PMID: 36257553 DOI: 10.1016/j.fsi.2022.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Ladderlectin is a member of C-type lectins (CTLs) in teleost fish and involved in innate immune defense. In this study, ayu (Plecoglossus altivelis) ladderlecin-like (PaLL-like) sequence was cloned, which encodes a polypeptide of 172 amino acids that includes a signal peptide and characteristic C-type lectin-like domains (CTLDs). Phylogenetically, PaLL-like was most closely related to its teleost counterpart from shishamo smelt (Spirinchus lanceolatus). Expression analysis revealed a ubiquitous expression profile, with highest expression detected in liver and its expression was up-regulated following Vibiro anguillarum infection. Similar to canonical CTLs, PaLL-like exhibited carbohydrate-binidng capacities to a wide range of well-defined mono-/di-saccharides and likely confer PaLL-like the ability to agglutinate all tested bacterial, including three Gram-positive species (i.e., Listeria monocytogenes, Staphylococcus aureus and Streptococcus iniae) and eight Gram-negative species (i.e., Edwardsiella tarda, Aeromonas (A.) hydrophila, Escherichia coli, Vibrio (V.) harveyi, V. anguillarum, V. parahemolyticus, A. versoni and V. vulnificus), in a calcium-dependent manner. Further functional studies revealed that PaLL-like displayed immunomodulatory activities leading to enhanced bactericidal activity of serum, pathogen opsonization and macrophage activation with increased expression of pro-inflammatory cytokines (i.e., PaIL-1β and PaTNF-α). Collectively, these immunomodulatory activities of PaLL-like suppressed proliferations of V. anguillarum in targeted tissued in vivo and likely contributed to the increased survival rate of infected-fish. Overall, our results demonstrated PaLL-like is a critical component of innate immunity and provides protective effects against bacterial infection.
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Affiliation(s)
- Wei Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, 315832, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, 315832, China
| | - Mei-Yi Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, 315832, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, 315832, China
| | - Chen-Jie Fei
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, 315832, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, 315832, China.
| | - Chang-Hong Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, 315832, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, 315832, China.
| | - Jiong Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, 315832, China; Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, 315832, China
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18
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Banger A, Pasch P, Blawitzki L, Weber S, Otten M, Monzel C, Schmidt S, Voskuhl J, Hartmann L. Detection of Lectin Clustering in Self‐Assembled, Glycan‐Functionalized Amphiphiles by Aggregation‐Induced Emission Luminophores. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Alexander Banger
- Department for Organic Chemistry and Macromolecular Chemistry Heinrich Heine University Duesseldorf Universitätsstraße 1 40225 Düsseldorf Germany
| | - Peter Pasch
- Department for Organic Chemistry and Macromolecular Chemistry Heinrich Heine University Duesseldorf Universitätsstraße 1 40225 Düsseldorf Germany
| | - Luca‐Cesare Blawitzki
- Department for Organic Chemistry and Macromolecular Chemistry Heinrich Heine University Duesseldorf Universitätsstraße 1 40225 Düsseldorf Germany
| | - Simon Weber
- Department for Organic Chemistry and Macromolecular Chemistry Heinrich Heine University Duesseldorf Universitätsstraße 1 40225 Düsseldorf Germany
| | - Marius Otten
- Department for Physical Chemistry Heinrich Heine University Duesseldorf Universitätsstraße 1 40225 Düsseldorf Germany
| | - Cornelia Monzel
- Department for Experimental Medical Physics Heinrich Heine University Duesseldorf Universitätsstraße 1 40225 Düsseldorf Germany
| | - Stephan Schmidt
- Department for Organic Chemistry and Macromolecular Chemistry Heinrich Heine University Duesseldorf Universitätsstraße 1 40225 Düsseldorf Germany
| | - Jens Voskuhl
- Institute of Organic Chemistry University of Duisburg‐Essen Universitätsstrasse 2 45141 Essen Germany
| | - Laura Hartmann
- Department for Organic Chemistry and Macromolecular Chemistry Heinrich Heine University Duesseldorf Universitätsstraße 1 40225 Düsseldorf Germany
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Cho BG, Gutierrez Reyes CD, Goli M, Gautam S, Banazadeh A, Mechref Y. Targeted N-Glycan Analysis with Parallel Reaction Monitoring Using a Quadrupole-Orbitrap Hybrid Mass Spectrometer. Anal Chem 2022; 94:15215-15222. [DOI: 10.1021/acs.analchem.2c01975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Byeong Gwan Cho
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | | | - Mona Goli
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Sakshi Gautam
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Alireza Banazadeh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
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20
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Thoma J, Stenitzer D, Grabherr R, Staudacher E. Identification, Characterization, and Expression of a β-Galactosidase from Arion Species (Mollusca). Biomolecules 2022; 12:1578. [PMID: 36358928 PMCID: PMC9687990 DOI: 10.3390/biom12111578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 08/20/2023] Open
Abstract
β-Galactosidases (β-Gal, EC 3.2.1.23) catalyze the cleavage of terminal non-reducing β-D-galactose residues or transglycosylation reactions yielding galacto-oligosaccharides. In this study, we present the isolation and characterization of a β-galactosidase from Arion lusitanicus, and based on this, the cloning and expression of a putative β-galactosidase from Arion vulgaris (A0A0B7AQJ9) in Sf9 cells. The entire gene codes for a protein consisting of 661 amino acids, comprising a putative signal peptide and an active domain. Specificity studies show exo- and endo-cleavage activity for galactose β1,4-linkages. Both enzymes, the recombinant from A. vulgaris and the native from A. lusitanicus, display similar biochemical parameters. Both β-galactosidases are most active in acidic environments ranging from pH 3.5 to 4.5, and do not depend on metal ions. The ideal reaction temperature is 50 °C. Long-term storage is possible up to +4 °C for the A. vulgaris enzyme, and up to +20 °C for the A. lusitanicus enzyme. This is the first report of the expression and characterization of a mollusk exoglycosidase.
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Affiliation(s)
- Julia Thoma
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Muthgassse 18, 1190 Vienna, Austria
| | - David Stenitzer
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Muthgassse 18, 1190 Vienna, Austria
| | - Reingard Grabherr
- Department of Biotechnology, University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria
| | - Erika Staudacher
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Muthgassse 18, 1190 Vienna, Austria
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21
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Jaroentomeechai T, Kwon YH, Liu Y, Young O, Bhawal R, Wilson JD, Li M, Chapla DG, Moremen KW, Jewett MC, Mizrachi D, DeLisa MP. A universal glycoenzyme biosynthesis pipeline that enables efficient cell-free remodeling of glycans. Nat Commun 2022; 13:6325. [PMID: 36280670 PMCID: PMC9592599 DOI: 10.1038/s41467-022-34029-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 10/11/2022] [Indexed: 12/25/2022] Open
Abstract
The ability to reconstitute natural glycosylation pathways or prototype entirely new ones from scratch is hampered by the limited availability of functional glycoenzymes, many of which are membrane proteins that fail to express in heterologous hosts. Here, we describe a strategy for topologically converting membrane-bound glycosyltransferases (GTs) into water soluble biocatalysts, which are expressed at high levels in the cytoplasm of living cells with retention of biological activity. We demonstrate the universality of the approach through facile production of 98 difficult-to-express GTs, predominantly of human origin, across several commonly used expression platforms. Using a subset of these water-soluble enzymes, we perform structural remodeling of both free and protein-linked glycans including those found on the monoclonal antibody therapeutic trastuzumab. Overall, our strategy for rationally redesigning GTs provides an effective and versatile biosynthetic route to large quantities of diverse, enzymatically active GTs, which should find use in structure-function studies as well as in biochemical and biomedical applications involving complex glycomolecules.
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Affiliation(s)
- Thapakorn Jaroentomeechai
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, NY, 14853, USA
| | - Yong Hyun Kwon
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, NY, 14853, USA
| | - Yiwen Liu
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, NY, 14853, USA
| | - Olivia Young
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, NY, 14853, USA
| | - Ruchika Bhawal
- Cornell Institute of Biotechnology, Cornell University, Ithaca, NY, 14853, USA
| | - Joshua D Wilson
- Glycobia, Inc., 33 Thornwood Drive, Suite 104, Ithaca, NY, 14850, USA
| | - Mingji Li
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, NY, 14853, USA
| | - Digantkumar G Chapla
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - Kelley W Moremen
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - Michael C Jewett
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Rd Technological Institute E136, Evanston, IL, 60208-3120, USA
| | - Dario Mizrachi
- Department of Physiology & Developmental Biology, Brigham Young University, Provo, UT, 84602, USA
| | - Matthew P DeLisa
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, NY, 14853, USA.
- Cornell Institute of Biotechnology, Cornell University, Ithaca, NY, 14853, USA.
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22
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Picault L, Laigre E, Gillon E, Tiertant C, Renaudet O, Imberty A, Goyard D, Dejeu J. Characterization of the interaction of multivalent glycosylated ligands with bacterial lectins by BioLayer interferometry. Glycobiology 2022; 32:886-896. [DOI: 10.1093/glycob/cwac047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/06/2022] [Accepted: 07/10/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
The study of multivalent carbohydrate–protein interactions remains highly complicated and sometimes rendered impossible due to aggregation problems. Bio-Layer Interferometry (BLI) is emerging as a tool to monitor such complex interactions. In this study, various glycoclusters and dendrimers were prepared and evaluated as ligands for lectins produced by pathogenic bacteria Pseudomonas aeruginosa (LecA and Lec B) and Burkholderia ambifaria (BambL). Reliable kinetic and thermodynamic parameters could be measured, and immobilization of either lectin or ligands resulted in high quality data. The methods gave results in full agreement with previous ITC experiments, and presented strong advantages since they require less quantity and purity for the biomolecules.
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Affiliation(s)
- L Picault
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - E Laigre
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - E Gillon
- Université Grenoble Alpes , CNRS, CERMAV, UPR5301, 601 Rue de la Chimie, 38000 Grenoble , France
| | - C Tiertant
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - O Renaudet
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - A Imberty
- Université Grenoble Alpes , CNRS, CERMAV, UPR5301, 601 Rue de la Chimie, 38000 Grenoble , France
| | - D Goyard
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
| | - J Dejeu
- Université Grenoble Alpes , CNRS, DCM, UMR 5250, 570 Rue de la Chimie, 38000 Grenoble , France
- FEMTO-ST Institute , CNRS UMR-6174, Université de Bourgogne Franche-Comté, F-25000 Besançon , France
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23
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González-Ramírez AM, Grosso AS, Yang Z, Compañón I, Coelho H, Narimatsu Y, Clausen H, Marcelo F, Corzana F, Hurtado-Guerrero R. Structural basis for the synthesis of the core 1 structure by C1GalT1. Nat Commun 2022; 13:2398. [PMID: 35504880 PMCID: PMC9065035 DOI: 10.1038/s41467-022-29833-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/31/2022] [Indexed: 12/18/2022] Open
Abstract
C1GalT1 is an essential inverting glycosyltransferase responsible for synthesizing the core 1 structure, a common precursor for mucin-type O-glycans found in many glycoproteins. To date, the structure of C1GalT1 and the details of substrate recognition and catalysis remain unknown. Through biophysical and cellular studies, including X-ray crystallography of C1GalT1 complexed to a glycopeptide, we report that C1GalT1 is an obligate GT-A fold dimer that follows a SN2 mechanism. The binding of the glycopeptides to the enzyme is mainly driven by the GalNAc moiety while the peptide sequence provides optimal kinetic and binding parameters. Interestingly, to achieve glycosylation, C1GalT1 recognizes a high-energy conformation of the α-GalNAc-Thr linkage, negligibly populated in solution. By imposing this 3D-arrangement on that fragment, characteristic of α-GalNAc-Ser peptides, C1GalT1 ensures broad glycosylation of both acceptor substrates. These findings illustrate a structural and mechanistic blueprint to explain glycosylation of multiple acceptor substrates, extending the repertoire of mechanisms adopted by glycosyltransferases. The glycosyltransferase C1GalT1 directs a key step in protein O-glycosylation important for the expression of the cancer-associated Tn and T antigens. Here, the authors provide molecular insights into the function of C1GalT1 by solving the crystal structure of the Drosophila enzyme-substrate complex.
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Affiliation(s)
- Andrés Manuel González-Ramírez
- Institute of Biocompuation and Physics of Complex Systems, University of Zaragoza, Mariano Esquillor s/n, Campus Rio Ebro, Edificio I+D, 50018, Zaragoza, Spain
| | - Ana Sofia Grosso
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516, Caparica, Portugal.,UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, 2829-516, Caparica, Portugal
| | - Zhang Yang
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200, Copenhagen N, Denmark
| | - Ismael Compañón
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006, Logroño, Spain
| | - Helena Coelho
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516, Caparica, Portugal.,UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, 2829-516, Caparica, Portugal
| | - Yoshiki Narimatsu
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200, Copenhagen N, Denmark
| | - Henrik Clausen
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200, Copenhagen N, Denmark
| | - Filipa Marcelo
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, 2829-516, Caparica, Portugal.,UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, 2829-516, Caparica, Portugal
| | - Francisco Corzana
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006, Logroño, Spain.
| | - Ramon Hurtado-Guerrero
- Institute of Biocompuation and Physics of Complex Systems, University of Zaragoza, Mariano Esquillor s/n, Campus Rio Ebro, Edificio I+D, 50018, Zaragoza, Spain. .,Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200, Copenhagen N, Denmark. .,Fundación ARAID, 50018, Zaragoza, Spain.
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24
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Suban S, Sendersky E, Golden SS, Schwarz R. Impairment of a cyanobacterial glycosyltransferase that modifies a pilin results in biofilm development. ENVIRONMENTAL MICROBIOLOGY REPORTS 2022; 14:218-229. [PMID: 35172394 PMCID: PMC9306852 DOI: 10.1111/1758-2229.13050] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 02/03/2022] [Indexed: 05/03/2023]
Abstract
A biofilm inhibiting mechanism operates in the cyanobacterium Synechococcus elongatus. Here, we demonstrate that the glycosyltransferase homologue, Ogt, participates in the inhibitory process - inactivation of ogt results in robust biofilm formation. Furthermore, a mutational approach shows requirement of the glycosyltransferase activity for biofilm inhibition. This enzyme is necessary for glycosylation of the pilus subunit and for adequate pilus formation. In contrast to wild-type culture in which most cells exhibit several pili, only 25% of the mutant cells are piliated, half of which possess a single pilus. In spite of this poor piliation, natural DNA competence was similar to that of wild-type; therefore, we propose that the unglycosylated pili facilitate DNA transformation. Additionally, conditioned medium from wild-type culture, which contains a biofilm inhibiting substance(s), only partially blocks biofilm development by the ogt-mutant. Thus, we suggest that inactivation of ogt affects multiple processes including production or secretion of the inhibitor as well as the ability to sense or respond to it.
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Affiliation(s)
- Shiran Suban
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐Gan5290002Israel
| | - Eleonora Sendersky
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐Gan5290002Israel
| | - Susan S. Golden
- Division of Biological SciencesUniversity of California, San DiegoLa JollaCA92093USA
- Center for Circadian BiologyUniversity of California, San DiegoLa JollaCA92093USA
| | - Rakefet Schwarz
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐Gan5290002Israel
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25
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Grosso G, Laudisio D, Frias-Toral E, Barrea L, Muscogiuri G, Savastano S, Colao A. Anti-Inflammatory Nutrients and Obesity-Associated Metabolic-Inflammation: State of the Art and Future Direction. Nutrients 2022; 14:nu14061137. [PMID: 35334794 PMCID: PMC8954840 DOI: 10.3390/nu14061137] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/23/2022] [Accepted: 02/28/2022] [Indexed: 02/04/2023] Open
Abstract
Growing evidence supports the hypothesis that dietary factors may play a role in systemic low-grade chronic inflammation. Summary evidence from randomized controlled trials has shown substantial effects on biomarkers of inflammation following the adoption of plant-based diets (including, but not limited to, the Mediterranean diet), while consistent findings have been reported for higher intakes of whole grains, fruits, and vegetables and positive trends observed for the consumption of legumes, pulses, nuts, and olive oil. Among animal food groups, dairy products have been shown to have the best benefits on biomarkers of inflammation, while red meat and egg have been shown to have neutral effects. The present review provides an overview of the mechanisms underlying the relation between dietary factors and immune system, with a focus on specific macronutrient and non-nutrient phytochemicals (polyphenols) and low-grade inflammation. Substantial differences within each macronutrient group may explain the conflicting results obtained regarding foods high in saturated fats and carbohydrates, underlying the role of specific subtypes of molecules (i.e., short-chain fatty acids or fiber vs. long chain fatty acids or free added sugars) when exploring the relation between diet and inflammation, as well as the importance of the food matrix and the commixture of foods in the context of whole dietary patterns. Dietary polyphenols and oligopeptides have been hypothesized to exert several functions, including the regulation of the inflammatory response and effects on the immune system. Overall, evidence suggests that dietary factors may affect the immune system regardless of obesity-related inflammation.
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Affiliation(s)
- Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy;
| | - Daniela Laudisio
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università “Federico II” di Napoli, Via Sergio Pansini, 5, 80131 Naples, Italy; (D.L.); (S.S.); (A.C.)
- Centro Italiano per la cura e il Benessere del Paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università “Federico II” di Napoli, Via Sergio Pansini, 5, 80131 Naples, Italy;
| | - Evelyn Frias-Toral
- School of Medicine, Santiago de Guayaquil Catholic University, Av. Pdte. Carlos Julio Arosemena Tola, Guayaquil 090615, Ecuador;
| | - Luigi Barrea
- Centro Italiano per la cura e il Benessere del Paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università “Federico II” di Napoli, Via Sergio Pansini, 5, 80131 Naples, Italy;
- Dipartimento di Scienze Umanistiche, Università Telematica Pegaso, 80132 Napoli, Italy
| | - Giovanna Muscogiuri
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università “Federico II” di Napoli, Via Sergio Pansini, 5, 80131 Naples, Italy; (D.L.); (S.S.); (A.C.)
- Centro Italiano per la cura e il Benessere del Paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università “Federico II” di Napoli, Via Sergio Pansini, 5, 80131 Naples, Italy;
- Cattedra Unesco “Educazione Alla Salute e Allo Sviluppo Sostenibile”, Federico II University, 80131 Naples, Italy
- Correspondence: ; Tel.: +39-081-746-3779
| | - Silvia Savastano
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università “Federico II” di Napoli, Via Sergio Pansini, 5, 80131 Naples, Italy; (D.L.); (S.S.); (A.C.)
- Centro Italiano per la cura e il Benessere del Paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università “Federico II” di Napoli, Via Sergio Pansini, 5, 80131 Naples, Italy;
| | - Annamaria Colao
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università “Federico II” di Napoli, Via Sergio Pansini, 5, 80131 Naples, Italy; (D.L.); (S.S.); (A.C.)
- Centro Italiano per la cura e il Benessere del Paziente con Obesità (C.I.B.O), Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Università “Federico II” di Napoli, Via Sergio Pansini, 5, 80131 Naples, Italy;
- Cattedra Unesco “Educazione Alla Salute e Allo Sviluppo Sostenibile”, Federico II University, 80131 Naples, Italy
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26
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Raics M, Timári I, Szilágyi L, Gabius HJ, Kövér KE. Introducing 77Se NMR Spectroscopy to Analyzing Galectin -Ligand Interaction. Methods Mol Biol 2022; 2442:105-123. [PMID: 35320522 DOI: 10.1007/978-1-0716-2055-7_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Their emerging nature as multifunctional effectors explains the large interest to monitor glycan binding to galectins and to define bound-state conformer(s) of their ligands in solution. Basically, NMR spectroscopy facilitates respective experiments. Towards developing new and even better approaches for these purposes, extending the range of exploitable isotopes beyond 1H, 13C, and 15N offers promising perspectives. Having therefore prepared selenodigalactoside and revealed its bioactivity as galectin ligand, monitoring of its binding by 77Se NMR spectroscopy at a practical level becomes possible by setting up a 2D 1H, 77Se CPMG-HSQBMC experiment including CPMG-INEPT long-range transfer. This first step into applying 77Se as sensor for galectin binding substantiates its potential for screening relative to inhibitory potencies in compound mixtures and for achieving sophisticated epitope mapping. The documented strategic combination of synthetic carbohydrate chemistry and NMR spectroscopy prompts to envision to work with isotopically pure 77Se-containing β-galactosides and to build on the gained experience with 77Se by adding 19F as second sensor in doubly labeled glycosides.
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Affiliation(s)
- Mária Raics
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Debrecen, Hungary
| | - István Timári
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Debrecen, Hungary
| | - László Szilágyi
- Department of Organic Chemistry, University of Debrecen, Debrecen, Hungary
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany.
| | - Katalin E Kövér
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Debrecen, Hungary.
- MTA-DE Molecular Recognition and Interaction Research Group, University of Debrecen, Debrecen, Hungary.
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27
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Leon F, Seshacharyulu P, Nimmakayala RK, Chugh S, Karmakar S, Nallasamy P, Vengoji R, Rachagani S, Cox JL, Mallya K, Batra SK, Ponnusamy MP. Reduction in O-glycome induces differentially glycosylated CD44 to promote stemness and metastasis in pancreatic cancer. Oncogene 2022; 41:57-71. [PMID: 34675409 PMCID: PMC8727507 DOI: 10.1038/s41388-021-02047-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/17/2021] [Accepted: 09/28/2021] [Indexed: 02/07/2023]
Abstract
Aberrant protein glycosylation has been shown to have a significant contribution in aggressive cancer, including pancreatic cancer (PC). Emerging evidence has implicated the involvement of cancer stem cells (CSCs) in PC aggressiveness; however, the contribution of glycosylation on self-renewal properties and maintenance of CSC is understudied. Here, using several in vitro and in vivo models lacking C1GALT1 expression, we identified the role of aberrant O-glycosylation in stemness properties and aggressive PC metastasis. A loss in C1GALT1 was found to result in the truncation of O-glycosylation on several glycoproteins with an enrichment of Tn carbohydrate antigen. Mapping of Tn-bearing glycoproteins in C1GALT1 KO cells identified significant Tn enrichment on CSC glycoprotein CD44. Notably, a loss of C1GALT1 in PC cells was found to enhance CSC features (side population-SP, ALDH1+, and tumorspheres) and self-renewal markers NANOG, SOX9, and KLF4. Furthermore, a loss of CD44 in existing C1GALT1 KO cells decreased NANOG expression and CSC features. We determined that O-glycosylation of CD44 activates ERK/NF-kB signaling, which results in increased NANOG expression in PC cells that facilitated the alteration of CSC features, suggesting that NANOG is essential for PC stemness. Finally, we identified that loss of C1GALT1 expression was found to augment tumorigenic and metastatic potential, while an additional loss of CD44 in these cells reversed the effects. Overall, our results identified that truncation of O-glycans on CD44 increases NANOG activation that mediates increased CSC activation.
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Affiliation(s)
- Frank Leon
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | | | - Rama K Nimmakayala
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Seema Chugh
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Saswati Karmakar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Palanisamy Nallasamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Raghupathy Vengoji
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Satyanarayana Rachagani
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jesse L Cox
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Kavita Mallya
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
- Eppley Institute for Research in Cancer and Allied Diseases, and Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Moorthy P Ponnusamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
- Eppley Institute for Research in Cancer and Allied Diseases, and Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA.
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28
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García Caballero G, Manning JC, Gabba A, Beckwith D, FitzGerald FG, Kutzner TJ, Ludwig AK, Kaltner H, Murphy PV, Cudic M, Gabius HJ. Exploring the Galectin Network by Light and Fluorescence Microscopy. Methods Mol Biol 2022; 2442:307-338. [PMID: 35320533 DOI: 10.1007/978-1-0716-2055-7_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Dynamic changes of a cell's glycophenotype are increasingly interpreted as shifts in the capacity to interact with tissue (endogenous) lectins. The status of glycan branching or chain length (e.g., core 1 vs core 2 mucin-type O-glycans and polyLacNAc additions) as well as of sialylation/sulfation has been delineated to convey signals. They are "read" by galectins, for example regulating lattice formation on the membrane and cell growth. Owing to the discovery of the possibility that these effectors act in networks physiologically resulting in functional antagonism or cooperation, their detection and distribution profiling need to be expanded from an individual (single) protein to the-at best-entire family. How to work with non-cross-reactive antibodies and with the labeled tissue-derived proteins (used as probes) is exemplarily documented for chicken and human galectins including typical activity and specificity controls. This description intends to inspire the systematic (network) study of members of a lectin family and also the application of tissue proteins beyond a single lectin category in lectin histochemistry.
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Affiliation(s)
- Gabriel García Caballero
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Joachim C Manning
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Adele Gabba
- School of Chemistry, National University of Ireland, Galway, Ireland
| | - Donella Beckwith
- Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton, FL, USA
| | - Forrest G FitzGerald
- Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton, FL, USA
| | - Tanja J Kutzner
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Anna-Kristin Ludwig
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Herbert Kaltner
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Paul V Murphy
- School of Chemistry, National University of Ireland, Galway, Ireland
| | - Mare Cudic
- Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton, FL, USA
| | - Hans-Joachim Gabius
- Faculty of Veterinary Medicine, Institute of Physiological Chemistry, Ludwig-Maximilians-University Munich, Munich, Germany.
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29
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Hu Z, Bie L, Gao J, Wang X. Insights into Selectin Inhibitor Design from Endogenous Isomeric Ligands of SLe a and SLe x. J Chem Inf Model 2021; 61:6085-6093. [PMID: 34905361 DOI: 10.1021/acs.jcim.1c01356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Selectins interact with cell-surface glycans to promote the initial tethering and rolling of leukocytes, and these interactions are targets for designs of inhibitors to neutralize diseases related to excessive inflammatory responses in many cardiovascular and immune dysfunctions, as well as tumor markers in different cancers. The isomeric endogenous tetrasaccharides, sialyl Lewis X (sLex) and sialyl Lewis A (sLea), are minimal sugar structures required for selectin binding. Understanding their subtle structural variances and significant advanced binding strengths of sLea over sLex could benefit the rational designs for selectin inhibitors. Modeling based on the E-selectin-sLex crystal structure in the present study demonstrated that the N-acetyl group of GlcNAc in sLex could form steric hindrances in the E-selectin-sLex complex, but the hydroxy methylene group of GlcNAc in sLea at the same position allows for stronger binding interactions. The subsequent designed inhibitor with a synthetic accessible linker molecule that has no exo-cyclic moieties replacing GlcNAc displayed comparable dynamic and energetic binding features to sLea. The present study deciphered the clues from endogenous isomeric sLea and sLex and provided insights into designing selectin inhibitors with simplified synthesis.
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Affiliation(s)
- Zhicheng Hu
- Cardiac Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Lihua Bie
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Jun Gao
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xiaocong Wang
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan, Hubei 430070, China
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30
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Structural Characterization of Rat Galectin-5, an N-Tailed Monomeric Proto-Type-like Galectin. Biomolecules 2021; 11:biom11121854. [PMID: 34944498 PMCID: PMC8699261 DOI: 10.3390/biom11121854] [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: 11/16/2021] [Revised: 12/07/2021] [Accepted: 12/08/2021] [Indexed: 11/23/2022] Open
Abstract
Galectins are multi-purpose effectors acting via interactions with distinct counterreceptors based on protein-glycan/protein recognition. These processes are emerging to involve several regions on the protein so that the availability of a detailed structural characterization of a full-length galectin is essential. We report here the first crystallographic information on the N-terminal extension of the carbohydrate recognition domain of rat galectin-5, which is precisely described as an N-tailed proto-type-like galectin. In the ligand-free protein, the three amino-acid stretch from Ser2 to Ser5 is revealed to form an extra β-strand (F0), and the residues from Thr6 to Asn12 are part of a loop protruding from strands S1 and F0. In the ligand-bound structure, amino acids Ser2–Tyr10 switch position and are aligned to the edge of the β-sandwich. Interestingly, the signal profile in our glycan array screening shows the sugar-binding site to preferentially accommodate the histo-blood-group B (type 2) tetrasaccharide and N-acetyllactosamine-based di- and oligomers. The crystal structures revealed the characteristically preformed structural organization around the central Trp77 of the CRD with involvement of the sequence signature’s amino acids in binding. Ligand binding was also characterized calorimetrically. The presented data shows that the N-terminal extension can adopt an ordered structure and shapes the hypothesis that a ligand-induced shift in the equilibrium between flexible and ordered conformers potentially acts as a molecular switch, enabling new contacts in this region.
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31
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Olešová D, Majerová P, Hájek R, Piešťanský J, Brumarová R, Michalicová A, Jurkanin B, Friedecký D, Kováč A. GM3 Ganglioside Linked to Neurofibrillary Pathology in a Transgenic Rat Model for Tauopathy. Int J Mol Sci 2021; 22:12581. [PMID: 34830461 PMCID: PMC8622195 DOI: 10.3390/ijms222212581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 11/24/2022] Open
Abstract
Glycosphingolipids (GSLs) are amphipathic lipids composed of a sphingoid base and a fatty acyl attached to a saccharide moiety. GSLs play an important role in signal transduction, directing proteins within the membrane, cell recognition, and modulation of cell adhesion. Gangliosides and sulfatides belong to a group of acidic GSLs, and numerous studies report their involvement in neurodevelopment, aging, and neurodegeneration. In this study, we used an approach based on hydrophilic interaction liquid chromatography (HILIC) coupled to high-resolution tandem mass spectrometry (HRMS/MS) to characterize the glycosphingolipid profile in rat brain tissue. Then, we screened characterized lipids aiming to identify changes in glycosphingolipid profiles in the normal aging process and tau pathology. Thorough screening of acidic glycosphingolipids in rat brain tissue revealed 117 ganglioside and 36 sulfatide species. Moreover, we found two ganglioside subclasses that were not previously characterized-GT1b-Ac2 and GQ1b-Ac2. The semi-targeted screening revealed significant changes in the levels of sulfatides and GM1a gangliosides during the aging process. In the transgenic SHR24 rat model for tauopathies, we found elevated levels of GM3 gangliosides which may indicate a higher rate of apoptotic processes.
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Affiliation(s)
- Dominika Olešová
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská cesta 9, 84510 Bratislava, Slovakia; (D.O.); (P.M.); (A.M.); (B.J.)
- Laboratory of Biomedical Microbiology and Immunology, University of Veterinary Medicine and Pharmacy, 04181 Kosice, Slovakia
| | - Petra Majerová
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská cesta 9, 84510 Bratislava, Slovakia; (D.O.); (P.M.); (A.M.); (B.J.)
| | - Roman Hájek
- Waters Corporation, Stamford Avenue, Altrincham Road, Wilmslow SK9 4AX, UK;
| | - Juraj Piešťanský
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, 83232 Bratislava, Slovakia;
| | - Radana Brumarová
- Laboratory for Inherited Metabolic Disorders, Department of Clinical Biochemistry, University Hospital Olomouc, and Faculty of Medicine and Dentistry, Palacký University Olomouc, I. P. Pavlova 6, 77900 Olomouc, Czech Republic; (R.B.); (D.F.)
| | - Alena Michalicová
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská cesta 9, 84510 Bratislava, Slovakia; (D.O.); (P.M.); (A.M.); (B.J.)
| | - Bernadeta Jurkanin
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská cesta 9, 84510 Bratislava, Slovakia; (D.O.); (P.M.); (A.M.); (B.J.)
| | - David Friedecký
- Laboratory for Inherited Metabolic Disorders, Department of Clinical Biochemistry, University Hospital Olomouc, and Faculty of Medicine and Dentistry, Palacký University Olomouc, I. P. Pavlova 6, 77900 Olomouc, Czech Republic; (R.B.); (D.F.)
| | - Andrej Kováč
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dúbravská cesta 9, 84510 Bratislava, Slovakia; (D.O.); (P.M.); (A.M.); (B.J.)
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Glycoconjugate journal special issue on: the glycobiology of Parkinson's disease. Glycoconj J 2021; 39:55-74. [PMID: 34757539 DOI: 10.1007/s10719-021-10024-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 09/14/2021] [Accepted: 09/24/2021] [Indexed: 10/19/2022]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder that affects over 10 million aging people worldwide. This condition is characterized by the degeneration of dopaminergic neurons in the pars compacta region of the substantia nigra (SNpc) and by aggregation of proteins, commonly α-synuclein (SNCA). The formation of Lewy bodies that encapsulate aggregated proteins in lipid vesicles is a hallmark of PD. Glycosylation of proteins and neuroinflammation are involved in the pathogenesis. SNCA has many posttranslational modifications and interacts with components of membranes that affect aggregation. The large membrane lipid dolichol accumulates in the brain upon age and has a significant effect on membrane structure. The replacement of dopamine and dopaminergic neurons are at the forefront of therapeutic development. This review examines the role of membrane lipids, glycolipids, glycoproteins and dopamine in the aggregation of SNCA and development of PD. We discuss the SNCA-dopamine-neuromelanin-dolichol axis and the role of membranes in neuronal stem cells that could be a regenerative therapy for PD patients.
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Poole J, Hartley-Tassell LE, Day CJ, Stanisic DI, Groves PL, Chakravarty S, Lee Sim BK, Hoffman SL, Tiralongo J, Bovin N, Doolan DL, Jennings MP. Identification of the Glycan Binding Profile of Human and Rodent Plasmodium Sporozoites. ACS Infect Dis 2021; 7:2383-2389. [PMID: 34170120 DOI: 10.1021/acsinfecdis.1c00084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The transmission of Plasmodium spp. sporozoites to the mammalian host is the first step in the initiation of the mosquito-borne disease known as malaria. The exact route of transmission from the bloodstream to the liver is still not clearly elucidated, and identification of the host glycan structures bound by the sporozoites may inform as to which host cells are involved. Here, we provide a comprehensive analysis of the glycan structures that sporozoites from the human pathogen, P. falciparum, and the rodent pathogen, P. yoelii, recognize and bind. Glycan array analysis was used to profile the glycans bound by the sporozoites, and the binding affinities of these sporozoite-glycan interactions were then determined by surface plasmon resonance. Data showed that the different Plasmodium spp. bind different classes of glycans. P. falciparum was observed to bind to glycans with terminal N-acetylgalactosamine (GalNAc) or Galactose (Gal) linked to a GalNAc, and the highest-affinity observed was with the GalNAc monosaccharide (12.5 nM). P. yoelii bound glycosaminoglycans, mannosyl glycans, Gal linked to N-acetylglucosamine structures, and the αGal epitope. The highest-affinity interaction for P. yoelii was with the αGal epitope (31.4 nM). This is the first study to identify the key host glycan structures recognized by human and rodent Plasmodium spp. sporozoites. An understanding of how Plasmodium sporozoites interact with the specific glycan structures identified here may provide further insight into this infectious disease that could help direct the design of an effective therapeutic.
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Affiliation(s)
- Jessica Poole
- Institute for Glycomics, Griffith University, Southport 4222, Queensland Australia
| | | | - Christopher J. Day
- Institute for Glycomics, Griffith University, Southport 4222, Queensland Australia
| | - Danielle I. Stanisic
- Institute for Glycomics, Griffith University, Southport 4222, Queensland Australia
| | - Penny L. Groves
- QIMR Berghofer Medical Research Institute, Herston 4029, Queensland Australia
| | | | - B. Kim Lee Sim
- Sanaria Inc, Rockville, Maryland 20852, United States of America
| | | | - Joe Tiralongo
- Institute for Glycomics, Griffith University, Southport 4222, Queensland Australia
| | - Nicolai Bovin
- Shemyakin Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - Denise L. Doolan
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns 4878, Queensland Australia
| | - Michael P. Jennings
- Institute for Glycomics, Griffith University, Southport 4222, Queensland Australia
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Tram G, Poole J, Adams FG, Jennings MP, Eijkelkamp BA, Atack JM. The Acinetobacter baumannii Autotransporter Adhesin Ata Recognizes Host Glycans as High-Affinity Receptors. ACS Infect Dis 2021; 7:2352-2361. [PMID: 34339169 DOI: 10.1021/acsinfecdis.1c00021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Acinetobacter baumannii is a significant opportunistic pathogen responsible for infections of the lung, blood, skin, urinary tract, and soft tissues, with some strains exhibiting almost complete resistance to commonly used antibiotics. This multidrug resistance, together with a dearth of new antibiotic development, mean novel methods of treatment and prevention are urgently needed. Although many A. baumannii factors required to colonize the host have been identified, little is known about the specific host molecules recognized by these factors. A. baumannii produces a trimeric autotransporter adhesin known as Ata that has been previously demonstrated to bind components of the host cell's extracellular matrix, which are often heavily glycosylated. We hypothesized that Ata would exhibit lectin activity which would play a role in adherence to the host cell surface. Our biophysical analysis using glycan arrays and surface plasmon resonance demonstrated that Ata binds galactose, N-acetylglucosamine, and galactose (β1-3/4) N-acetylglucosamine with high-affinity. These structures are present on many of the proteins which were previously reported to be bound by Ata. We also demonstrated that the recognition of human plasma fibronectin by Ata requires this ability to bind glycans, as the interaction between Ata and fibronectin does not occur when fibronectin is deglycosylated. This strongly suggests a key role for Ata lectin activity during host adherence. This information will assist in directing the development of new and effective treatments to block host interactions using glycans and/or novel compounds in multidrug resistant A. baumannii infections.
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Affiliation(s)
- Greg Tram
- Institute for Glycomics, Griffith University, Gold Coast, Queensland 4215, Australia
| | - Jessica Poole
- Institute for Glycomics, Griffith University, Gold Coast, Queensland 4215, Australia
| | - Felise G. Adams
- Molecular Sciences & Technology, College of Science and Engineering, Flinders University, Sturt Road, Bedford Park, South Australia 5042, Australia
| | - Michael P. Jennings
- Institute for Glycomics, Griffith University, Gold Coast, Queensland 4215, Australia
| | - Bart A. Eijkelkamp
- Molecular Sciences & Technology, College of Science and Engineering, Flinders University, Sturt Road, Bedford Park, South Australia 5042, Australia
| | - John M. Atack
- Institute for Glycomics, Griffith University, Gold Coast, Queensland 4215, Australia
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N,N-Bis(hexyl α-d-acetylmannosyl) Acrylamide. MOLBANK 2021. [DOI: 10.3390/m1255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Glycosyl monomers for the assembly of multivalent ligands are typically synthesized using carbohydrates with biological functions and polymerizable functional groups such as acrylamide or styrene introduced into the carbohydrate aglycon, and monomers polymerized using a radical initiator. Herein, we report the acryloylation of 6-aminohexyl α-d-mannoside and its conversion into the glycosyl monomer bearing an acrylamide group. The general acryloylation procedure afforded the desired N-hexyl α-d-acetylmannosyl acrylamide monomer as well as an unexpected compound with a close Rf value. The compounds were separated and analyzed by nuclear magnetic resonance spectroscopy and mass spectrometry, which revealed the unknown compound to be the bivalent N,N-bis(hexyl α-d-acetylmannosyl) acrylamide monomer, which contains two hexyl mannose units and one acrylamide group. To the best of our knowledge, this side reaction has not previously been disclosed, and may be useful for the construction of multivalent sugar ligands.
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36
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In focus in HCB. Histochem Cell Biol 2021; 154:117-122. [PMID: 32728939 DOI: 10.1007/s00418-020-01901-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Szmyt A, Zabłocka A, Macała J, Chrzanowska J, Dąbrowska A. C-Terminal Fragment of Vitellogenin II, a Potential Yolkin Polypeptide Complex Precursor Protein-Heterologous Expression, Purification, and Immunoregulatory Activity. Int J Mol Sci 2021; 22:7223. [PMID: 34281277 PMCID: PMC8268165 DOI: 10.3390/ijms22137223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/25/2022] Open
Abstract
The aim of this research was to analyze the heterologous expression, purification, and immunoregulatory activity of recombinant YGP40 (rYGP40), the potential precursor of the yolkin peptide complex. The ygp40 coding sequence was codon optimized, successfully expressed in the E. coli system, and purified from inclusion bodies with a yield of about 1.1 mg/L of culture. This study showed that the protein exhibits immunomodulatory activity, expressed by the stimulation of TNF-α and IL-10 production and nitric oxide induction at a level comparable to that of the natural yolkin peptide complex obtained by other authors from hen egg yolk. At the highest dose of 100 µg/mL, rYGP40 also caused the up-regulation of iNOS expression in murine bone marrow-derived macrophages (BMDM). Moreover, no cytotoxic effects of rYGP40 on the BMDM cell line were observed.
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Affiliation(s)
- Agnieszka Szmyt
- Department of Functional Food Products Development, Wroclaw University of Environmental and Life Science, 37 Chełmońskiego Str., 51-640 Wrocław, Poland; (A.S.); (J.C.)
| | - Agnieszka Zabłocka
- Department of Microbiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, 12 Rudolf Weigl Str., 53-114 Wrocław, Poland; (A.Z.); (J.M.)
| | - Józefa Macała
- Department of Microbiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, 12 Rudolf Weigl Str., 53-114 Wrocław, Poland; (A.Z.); (J.M.)
| | - Józefa Chrzanowska
- Department of Functional Food Products Development, Wroclaw University of Environmental and Life Science, 37 Chełmońskiego Str., 51-640 Wrocław, Poland; (A.S.); (J.C.)
| | - Anna Dąbrowska
- Department of Functional Food Products Development, Wroclaw University of Environmental and Life Science, 37 Chełmońskiego Str., 51-640 Wrocław, Poland; (A.S.); (J.C.)
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Zhang X, Zhang Z, Xia N, Zhao Q. Carbohydrate-containing nanoparticles as vaccine adjuvants. Expert Rev Vaccines 2021; 20:797-810. [PMID: 34101528 DOI: 10.1080/14760584.2021.1939688] [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] [Indexed: 12/12/2022]
Abstract
Introduction: Adjuvants are essential to vaccines for immunopotentiation in the elicitation of protective immunity. However, classical and widely used aluminum-based adjuvants have limited capacity to induce cellular response. There are increasing needs for appropriate adjuvants with improved profiles for vaccine development toward emerging pathogens. Carbohydrate-containing nanoparticles (NPs) with immunomodulatory activity and particulate nanocarriers for effective antigen presentation are capable of eliciting a more balanced humoral and cellular immune response.Areas covered: We reviewed several carbohydrates with immunomodulatory properties. They include chitosan, β-glucan, mannan, and saponins, which have been used in vaccine formulations. The mode of action, the preparation methods, characterization of these carbohydrate-containing NPs and the corresponding vaccines are presented.Expert opinion: Several carbohydrate-containing NPs have entered the clinical stage or have been used in licensed vaccines for human use. Saponin-containing NPs are being evaluated in a vaccine against SARS-CoV-2, the pathogen causing the on-going worldwide pandemic. Vaccines with carbohydrate-containing NPs are in different stages of development, from preclinical studies to late-stage clinical trials. A better understanding of the mode of action for carbohydrate-containing NPs as vaccine carriers and as immunostimulators will likely contribute to the design and development of new generation vaccines against cancer and infectious diseases.
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Affiliation(s)
- Xinyuan Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, Fujian, PR China
| | - Zhigang Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, Fujian, PR China
| | - Ningshao Xia
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, Fujian, PR China.,School of Life Sciences, Xiamen University, Xiamen, Fujian, PR China.,The Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen, Fujian, PR China
| | - Qinjian Zhao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, Fujian, PR China
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Ip PP, Li Q, Lin WH, Chang CC, Fann CSJ, Chen HY, Liu FT, Lebrilla CB, Yang CC, Liao F. Analysis of site-specific glycan profiles of serum proteins in patients with multiple sclerosis or neuromyelitis optica spectrum disorder - a pilot study. Glycobiology 2021; 31:1230-1238. [PMID: 34132764 DOI: 10.1093/glycob/cwab053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 11/14/2022] Open
Abstract
Glycosylation is important for biological functions of proteins and greatly affected by diseases. Exploring the glycosylation profile of the protein-specific glycosylation and/or the site-specific glycosylation may help understand disease etiology, differentiate diseases, and ultimately develop therapeutics. Patients with multiple sclerosis (MS) and patients with neuromyelitis optica spectrum disorder (NMOSD) are sometimes difficult to differentiate due to the similarity in their clinical symptoms. The disease-related glycosylation profiles of MS and NMOSD have not yet been well studied. Here, we analyzed site-specific glycan profiles of serum proteins of these patients by using a recently developed mass spectrometry technique. A total of 286 glycopeptides from 49 serum glycoproteins were quantified and compared between healthy controls (n = 6), remitting MS (n = 45) and remitting NMOSD (n = 23) patients. Significant differences in the levels of site-specific N-glycans on inflammation-associated components [IgM, IgG1, IgG2, complement components 8b (CO8B), attractin], central nerve system-damage-related serum proteins [apolipoprotein D (APOD), alpha-1-antitrypsin, plasma kallikrein and ADAMTS-like protein 3] were observed among three study groups. We furthered demonstrated that site-specific N-glycans on APOD on site 98, CO8B on sites 243 and 553 are potential markers to differentiate MS from NMOSD with an area under receiver operating curve value greater than 0.75. All these observations indicate that remitting MS or NMOSD patients possess a unique disease-associated glyco-signature in their serum proteins. We conclude that monitoring one's serum protein glycan profile using this high-throughput analysis may provide an additional diagnostic criterion for differentiating diseases, monitoring disease status and estimating response-to-treatment effect.
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Affiliation(s)
- Peng Peng Ip
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taipei 115, Taiwan
| | - Qiongyu Li
- Department of Chemistry, University of California Davis, One Shields Avenue, Davis, California 95616, United States
| | - Wei-Han Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taipei 115, Taiwan
| | - Chien-Ching Chang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taipei 115, Taiwan
| | | | - Huan-Yuan Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taipei 115, Taiwan
| | - Fu-Tong Liu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taipei 115, Taiwan
| | - Carlito B Lebrilla
- Department of Chemistry, University of California Davis, One Shields Avenue, Davis, California 95616, United States
| | - Chih-Chao Yang
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Fang Liao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taipei 115, Taiwan
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Tourkochristou E, Triantos C, Mouzaki A. The Influence of Nutritional Factors on Immunological Outcomes. Front Immunol 2021; 12:665968. [PMID: 34135894 PMCID: PMC8201077 DOI: 10.3389/fimmu.2021.665968] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 05/05/2021] [Indexed: 12/19/2022] Open
Abstract
Through food intake, humans obtain a variety of nutrients that are essential for growth, cellular function, tissue development, energy, and immune defense. A special interaction between nutrients and gut-associated lymphoid tissue occurs in the intestinal tract. Enterocytes of the intestinal barrier act as sensors for antigens from nutrients and the intestinal microbiota, which they deliver to the underlying immune system of the lamina propria, triggering an immune response. Studies investigating the mechanism of influence of nutrition on immunological outcomes have highlighted an important role of macronutrients (proteins, carbohydrates, fatty acids) and micronutrients (vitamins, minerals, phytochemicals, antioxidants, probiotics) in modulating immune homeostasis. Nutrients exert their role in innate immunity and inflammation by regulating the expression of TLRs, pro- and anti-inflammatory cytokines, thus interfering with immune cell crosstalk and signaling. Chemical substrates derived from nutrient metabolism may act as cofactors or blockers of enzymatic activity, influencing molecular pathways and chemical reactions associated with microbial killing, inflammation, and oxidative stress. Immune cell function appears to be influenced by certain nutrients that form parts of the cell membrane structure and are involved in energy production and prevention of cytotoxicity. Nutrients also contribute to the initiation and regulation of adaptive immune responses by modulating B and T lymphocyte differentiation, proliferation and activation, and antibody production. The purpose of this review is to present the available data from the field of nutritional immunology to elucidate the complex and dynamic relationship between nutrients and the immune system, the delineation of which will lead to optimized nutritional regimens for disease prevention and patient care.
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Affiliation(s)
- Evanthia Tourkochristou
- Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, Patras, Greece
| | - Christos Triantos
- Division of Gastroenterology, Department of Internal Medicine, Medical School, University of Patras, Patras, Greece
| | - Athanasia Mouzaki
- Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, Patras, Greece
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Perissinotto F, Rondelli V, Senigagliesi B, Brocca P, Almásy L, Bottyán L, Merkel DG, Amenitsch H, Sartori B, Pachler K, Mayr M, Gimona M, Rohde E, Casalis L, Parisse P. Structural insights into fusion mechanisms of small extracellular vesicles with model plasma membranes. NANOSCALE 2021; 13:5224-5233. [PMID: 33687046 DOI: 10.1039/d0nr09075a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Extracellular vesicles (EVs) are a potent intercellular communication system. Such small vesicles transport biomolecules between cells and throughout the body, strongly influencing the fate of recipient cells. Due to their specific biological functions they have been proposed as biomarkers for various diseases and as optimal candidates for therapeutic applications. Despite their extreme biological relevance, their mechanisms of interaction with the membranes of recipient cells are still hotly debated. Here, we propose a multiscale investigation based on atomic force microscopy, small angle X-ray scattering, small angle neutron scattering and neutron reflectometry to reveal structure-function correlations of purified EVs in interaction with model membrane systems of variable complex compositions and to spot the role of different membrane phases on the vesicle internalization routes. Our analysis reveals strong interactions of EVs with the model membranes and preferentially with the borders of protruding phase domains. Moreover, we found that upon vesicle breaking on the model membrane surface, the biomolecules carried by/on EVs diffuse with different kinetics rates, in a process distinct from simple fusion. The biophysical platform proposed here has clear implications on the modulation of EV internalization routes by targeting specific domains at the plasma cell membrane and, as a consequence, on EV-based therapies.
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Affiliation(s)
- Fabio Perissinotto
- Elettra Sincrotrone Trieste, Trieste, Italy. and Center for Infection and Immunity of Lille, INSERM U1019, Institut Pasteur de Lille, Lille, France
| | - Valeria Rondelli
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Italy
| | | | - Paola Brocca
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Italy
| | | | - László Bottyán
- Centre for Energy Research, Budapest, Hungary and Wigner Research Centre for Physics, Budapest, Hungary
| | - Dániel Géza Merkel
- Centre for Energy Research, Budapest, Hungary and Wigner Research Centre for Physics, Budapest, Hungary
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, Graz University of Technology, Graz, Austria
| | - Barbara Sartori
- Institute of Inorganic Chemistry, Graz University of Technology, Graz, Austria
| | - Karin Pachler
- GMP Unit, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University (PMU), Salzburg, Austria and Research Program "Nanovesicular Therapies", Paracelsus Medical University, Salzburg, Austria
| | - Magdalena Mayr
- GMP Unit, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University (PMU), Salzburg, Austria
| | - Mario Gimona
- GMP Unit, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University (PMU), Salzburg, Austria and Research Program "Nanovesicular Therapies", Paracelsus Medical University, Salzburg, Austria
| | - Eva Rohde
- Research Program "Nanovesicular Therapies", Paracelsus Medical University, Salzburg, Austria and Department of Transfusion Medicine, University Hospital, Salzburger Landeskliniken, Austria
| | | | - Pietro Parisse
- Elettra Sincrotrone Trieste, Trieste, Italy. and CNR-IOM, Trieste, Italy
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Gautam S, Banazadeh A, Cho BG, Goli M, Zhong J, Mechref Y. Mesoporous Graphitized Carbon Column for Efficient Isomeric Separation of Permethylated Glycans. Anal Chem 2021; 93:5061-5070. [DOI: 10.1021/acs.analchem.0c04395] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Sakshi Gautam
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Alireza Banazadeh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Byeong Gwan Cho
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Mona Goli
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Jieqiang Zhong
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Yehia Mechref
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
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Sołkiewicz K, Krotkiewski H, Jędryka M, Kratz EM. Variability of serum IgG sialylation and galactosylation degree in women with advanced endometriosis. Sci Rep 2021; 11:5586. [PMID: 33692455 PMCID: PMC7970930 DOI: 10.1038/s41598-021-85200-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 02/25/2021] [Indexed: 12/17/2022] Open
Abstract
Endometriosis is an inflammatory disease which diagnostics is difficult and often invasive, therefore non-invasive diagnostics methods and parameters are needed for endometriosis detection. The aim of our study was to analyse the glycosylation of native serum IgG and IgG isolated from sera of women classified as: with endometriosis, without endometriosis but with some benign ginecological disease, and control group of healthy women, in context of its utility for differentiation of advanced endometriosis from the group of healthy women. IgG sialylation and galactosylation/agalactosylation degree was determined using specific lectins: MAA and SNA detecting sialic acid α2,3- and α2,6-linked, respectively, RCA-I and GSL-II specific to terminal Gal and terminal GlcNAc, respectively. The results of ROC and cluster analysis showed that the serum IgG MAA-reactivity, sialylation and agalactosylation factor may be used as supplementary parameters for endometriosis diagnostics and could be taken into account as a useful clinical tool to elucidate women with high risk of endometriosis development. Additionally, we have shown that the analysis of native serum IgG glycosylation, without the prior time-consuming and expensive isolation of the protein, is sufficient to differentiation endometriosis from a group of healthy women.
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Affiliation(s)
- Katarzyna Sołkiewicz
- Department of Laboratory Diagnostics, Division of Laboratory Diagnostics, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211A, 50-556, Wrocław, Poland
| | - Hubert Krotkiewski
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla Street 12, 53-114, Wrocław, Poland
| | - Marcin Jędryka
- Department of Oncology, Gynecological Oncology Clinic, Faculty of Medicine, Wroclaw Medical University, Hirszfeld Square 12, 53-413, Wrocław, Poland
- Department of Oncological Gynecology, Wroclaw Comprehensive Cancer Center, Hirszfeld Square 12, 53-413, Wrocław, Poland
| | - Ewa M Kratz
- Department of Laboratory Diagnostics, Division of Laboratory Diagnostics, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211A, 50-556, Wrocław, Poland.
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Beckwith DM, FitzGerald FG, Rodriguez Benavente MC, Mercer ER, Ludwig AK, Michalak M, Kaltner H, Kopitz J, Gabius HJ, Cudic M. Calorimetric Analysis of the Interplay between Synthetic Tn Antigen-Presenting MUC1 Glycopeptides and Human Macrophage Galactose-Type Lectin. Biochemistry 2021; 60:547-558. [PMID: 33560106 PMCID: PMC8269692 DOI: 10.1021/acs.biochem.0c00942] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/31/2021] [Indexed: 12/25/2022]
Abstract
Human macrophage galactose-type lectin (hMGL, HML, CD301, CLEC10A), a C-type lectin expressed by dendritic cells and macrophages, is a receptor for N-acetylgalactosamine α-linked to serine/threonine residues (Tn antigen, CD175) and its α2,6-sialylated derivative (sTn, CD175s). Because these two epitopes are among malignant cell glycan displays, particularly when presented by mucin-1 (MUC1), assessing the influence of the site and frequency of glycosylation on lectin recognition will identify determinants governing this interplay. Thus, chemical synthesis of the tandem-repeat O-glycan acceptor region of MUC1 and site-specific threonine glycosylation in all permutations were carried out. Isothermal titration calorimetry (ITC) analysis of the binding of hMGL to this library of MUC1 glycopeptides revealed an enthalpy-driven process and an affinity enhancement of an order of magnitude with an increasing glycan count from 6-8 μM for monoglycosylated peptides to 0.6 μM for triglycosylated peptide. ITC measurements performed in D2O permitted further exploration of the solvation dynamics during binding. A shift in enthalpy-entropy compensation and contact position-specific effects with the likely involvement of the peptide surroundings were detected. KinITC analysis revealed a prolonged lifetime of the lectin-glycan complex with increasing glycan valency and with a change in the solvent to D2O.
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Affiliation(s)
- Donella M. Beckwith
- Department of Chemistry and Biochemistry, Charles E.
Schmidt College of Science, Florida Atlantic University, Boca
Raton, Florida 33431, United States
| | - Forrest G. FitzGerald
- Department of Chemistry and Biochemistry, Charles E.
Schmidt College of Science, Florida Atlantic University, Boca
Raton, Florida 33431, United States
| | - Maria C. Rodriguez Benavente
- Department of Chemistry and Biochemistry, Charles E.
Schmidt College of Science, Florida Atlantic University, Boca
Raton, Florida 33431, United States
| | - Elizabeth R. Mercer
- Department of Chemistry and Biochemistry, Charles E.
Schmidt College of Science, Florida Atlantic University, Boca
Raton, Florida 33431, United States
| | - Anna-Kristin Ludwig
- Ludwig-Maximilians-University
Munich, Institute of Physiological Chemistry, Faculty of Veterinary
Medicine, Veterinärstrasse 13, 80539 Munich, Germany
| | - Malwina Michalak
- Department of Applied Tumor Biology, Institute of
Pathology, Medical School of the Ruprecht-Karls-University
Heidelberg, Im Neuenheimer Feld 224, 69120 Heidelberg,
Germany
| | - Herbert Kaltner
- Ludwig-Maximilians-University
Munich, Institute of Physiological Chemistry, Faculty of Veterinary
Medicine, Veterinärstrasse 13, 80539 Munich, Germany
| | - Jürgen Kopitz
- Department of Applied Tumor Biology, Institute of
Pathology, Medical School of the Ruprecht-Karls-University
Heidelberg, Im Neuenheimer Feld 224, 69120 Heidelberg,
Germany
| | - Hans-Joachim Gabius
- Ludwig-Maximilians-University
Munich, Institute of Physiological Chemistry, Faculty of Veterinary
Medicine, Veterinärstrasse 13, 80539 Munich, Germany
| | - Maré Cudic
- Department of Chemistry and Biochemistry, Charles E.
Schmidt College of Science, Florida Atlantic University, Boca
Raton, Florida 33431, United States
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Abstract
The surfaces of all living organisms and most secreted proteins share a common feature: They are glycosylated. As the outermost-facing molecules, glycans participate in nearly all immunological processes, including driving host-pathogen interactions, immunological recognition and activation, and differentiation between self and nonself through a complex array of pathways and mechanisms. These fundamental immunologic roles are further cast into sharp relief in inflammatory, autoimmune, and cancer disease states in which immune regulation goes awry. Here, we review the broad impact of glycans on the immune system and discuss the changes and clinical opportunities associated with the onset of immunologic disease.
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Affiliation(s)
- Julie Y Zhou
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106-7288, USA;
| | - Brian A Cobb
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106-7288, USA;
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Hackett WE, Zaia J. Calculating Glycoprotein Similarities From Mass Spectrometric Data. Mol Cell Proteomics 2021; 20:100028. [PMID: 32883803 PMCID: PMC8724611 DOI: 10.1074/mcp.r120.002223] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/24/2020] [Accepted: 09/03/2020] [Indexed: 12/23/2022] Open
Abstract
Complex protein glycosylation occurs through biosynthetic steps in the secretory pathway that create macro- and microheterogeneity of structure and function. Required for all life forms, glycosylation diversifies and adapts protein interactions with binding partners that underpin interactions at cell surfaces and pericellular and extracellular environments. Because these biological effects arise from heterogeneity of structure and function, it is necessary to measure their changes as part of the quest to understand nature. Quite often, however, the assumption behind proteomics that posttranslational modifications are discrete additions that can be modeled using the genome as a template does not apply to protein glycosylation. Rather, it is necessary to quantify the glycosylation distribution at each glycosite and to aggregate this information into a population of mature glycoproteins that exist in a given biological system. To date, mass spectrometric methods for assigning singly glycosylated peptides are well-established. But it is necessary to quantify glycosylation heterogeneity accurately in order to gauge the alterations that occur during biological processes. The task is to quantify the glycosylated peptide forms as accurately as possible and then apply appropriate bioinformatics algorithms to the calculation of micro- and macro-similarities. In this review, we summarize current approaches for protein quantification as they apply to this glycoprotein similarity problem.
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Affiliation(s)
- William E Hackett
- Bioinformatics Program, Boston University, Boston, Massachusetts, USA
| | - Joseph Zaia
- Bioinformatics Program, Boston University, Boston, Massachusetts, USA; Department of Biochemistry, Boston University, Boston, Massachusetts, USA.
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Mycobacterium tuberculosis Infection Up-Regulates Sialyl Lewis X Expression in the Lung Epithelium. Microorganisms 2021; 9:microorganisms9010099. [PMID: 33406734 PMCID: PMC7823657 DOI: 10.3390/microorganisms9010099] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/23/2020] [Accepted: 12/29/2020] [Indexed: 02/08/2023] Open
Abstract
Glycans display increasingly recognized roles in pathological contexts, however, their impact in the host-pathogen interplay in many infectious diseases remains largely unknown. This is the case for tuberculosis (TB), one of the ten most fatal diseases worldwide, caused by infection of the bacteria Mycobacterium tuberculosis. We have recently reported that perturbing the core-2 O-glycans biosynthetic pathway increases the host susceptibility to M. tuberculosis infection, by disrupting the neutrophil homeostasis and enhancing lung pathology. In the present study, we show an increased expression of the sialylated glycan structure Sialyl-Lewis X (SLeX) in the lung epithelium upon M. tuberculosis infection. This increase in SLeX glycan epitope is accompanied by an altered lung tissue transcriptomic signature, with up-regulation of genes codifying enzymes that are involved in the SLeX core-2 O-glycans biosynthetic pathway. This study provides novel insights into previously unappreciated molecular mechanisms involving glycosylation, which modulate the host response to M. tuberculosis infection, possibly contributing to shape TB disease outcome.
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Guillen N. Signals and signal transduction pathways in Entamoeba histolytica during the life cycle and when interacting with bacteria or human cells. Mol Microbiol 2020; 115:901-915. [PMID: 33249684 DOI: 10.1111/mmi.14657] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 01/17/2023]
Abstract
Entamoeba histolytica is the etiological agent of amebiasis in humans. This ameba parasite resides as a commensal in the intestine where it shares intestinal resources with the bacterial microbiome. In the intestinal ecosystem, the ameba encysts and eventually develops disease by invading the tissues. E. histolytica possesses cell surface receptors for the proper sensing of signals involved in encystation or sustaining parasite interaction with bacteria and human cells. Among those receptors are the Gal/GalNAc lectin, G protein-coupled receptors, and transmembrane kinases. In addition there are recently discovered, promising proteins, including orthologs of Toll-type receptors and β trefoil lectins. These proteins trigger a wide variety of signal transduction pathways; however, most of the players involved in the signaling pathways evoked in this parasite are unknown. This review provides an overview of amoebic receptors and their role in encystation, adherence to bacteria or human cells, as well as the reported intracellular signal transduction processes that they can trigger. This knowledge is essential for understanding the lifestyle of E. histolytica and its cytopathic effect on bacteria and human cells that are responsible for infection.
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Affiliation(s)
- Nancy Guillen
- Institut Pasteur, Centre National de la Recherche Scientifique, CNRS-ERL9195, Paris, France
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49
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Sagini MN, Hotz-Wagenblatt A, Berger MR. A subgroup of lactosyl-Sepharose binding proteins requires calcium for affinity and galactose for anti-proliferation. Chem Biol Interact 2020; 334:109354. [PMID: 33309620 DOI: 10.1016/j.cbi.2020.109354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/30/2020] [Accepted: 12/07/2020] [Indexed: 12/31/2022]
Abstract
Lactosyl-Sepharose binding proteins (LSBPs) were recently described in human pancreatic ductal adenocarcinoma (PDAC) Suit2-007 cells regarding their lectin-like properties and role in metastasis. This study further investigated how calcium and galactose influence the binding of LSBPs to the lactosyl resin as well as their anti-proliferative effect in Suit2-007 cells. Altered binding of LSBPs to the lactosyl resin was evaluated by affinity chromatography and mass spectrometry. Calcium binding EF-hand proteins were aligned and identified with a motif derived from the Uniprot protein database. The antiproliferative effects of LSBPs and monosaccharides were determined by MTT assay. In addition, LSBPs and galactose effects were investigated by chip array and tumor take in nude rats. LSBPs reduced Suit2-007 cells' proliferation with an IC50 of 125 μg/mL. Coincubation of LSBPs with EGTA decreased the number of LSBPs binding to the lactosyl resin by ~50%. Ca2+ -sensitive LSBPs included subgroups of galactose-sensitive (10%) and EF-hand calcium binding motifs containing (2.5%) proteins. In vitro, the combination of LSBPs with monosaccharides including galactose synergistically decreased cell proliferation compared to single agents (p < 0.05). In addition, LSBPs in combination with galactose prevented the tumor growth of Suit2-007 cells in nude rats, as opposed to single treatments. At mRNA level, the combination treatment modulated 5% of Ca2+ -sensitive LSBPs and downregulated 216 genes, 18% of which were up-regulated during PDAC progression. This study highlights the importance of calcium and galactose in modulating the affinity and anti-proliferative activity of LSBPs and their potential application as therapeutic agents for metastatic PDAC.
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Affiliation(s)
- Micah N Sagini
- Toxicology and Chemotherapy Unit, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany.
| | - Agnes Hotz-Wagenblatt
- Genomics and Proteomics Core Facility, Bioinformatics-Husar Unit, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Martin R Berger
- Toxicology and Chemotherapy Unit, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany.
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50
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Gilliéron N, Hemmerle A, Lung T, Sakem B, Risch L, Risch M, Nydegger UE. Oral glucose tolerance test does not affect degree of hemoglobin glycation as measured by routine assay. ANNALES D'ENDOCRINOLOGIE 2020; 81:545-550. [PMID: 33278381 DOI: 10.1016/j.ando.2020.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 11/16/2020] [Accepted: 11/25/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Hemoglobin A1c (HbA1c) is an accurate index of fluctuation in glycemia over the 2-3 months prior to quantitative assessment. During this time, hemoglobin (Hb) slowly glycates until it shows the properties of advanced glycation end-products. Glycation kinetics is intensified by prolonged glucose exposure. In subjects undergoing oral glucose tolerance testing (OGTT), immediately after ingestion, glucose is ostensibly transported by the glucose transporter 1 (GLUT1) to erythrocyte corpuscular hemoglobin. The earliest significant measurable level of hemoglobin glycation associated with this transportation is still not clear. SUBJECTS AND METHODS We attempted to explore the early impact of short-term glucose load on HbA1c levels, because it is now known that transmembrane GLUT1-mediated glucose transport occurs immediately. A total of 88 participants (46 patients and 42 clinically healthy controls) underwent fasting plasma glucose quantitation during an OGTT. HbA1c, revealed by a monoclonal anti-glycation epitope antibody and adiponectin, was quantitated before (T0) and 2 hours (T120) after 80 g glucose ingestion. RESULTS Wilcoxon test revealed that the HbA1c values did not significantly vary (P=0.15) during the OGTT, whereas glucose concentration varied strongly between T0 and T120. DISCUSSION It is well known that quantitative estimation of HbA1c is informative for clinical care, independently of glucose level. The molecular mechanisms and dynamics by which glucose enters/exits red blood cells are incompletely known and may differ between individuals. We here show, for the first time, that HbA1c levels do not significantly increase during OGTT, supporting the view that non-enzymatic glycation of hemoglobin occurs slowly and that glycation during the 2 hours of an OGTT is insignificant.
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Affiliation(s)
| | | | - Thomas Lung
- Labormedizinisches Zentrum Dr. Risch, Vaduz, Liechtenstein
| | - Benjamin Sakem
- Labormedizinisches Zentrum Dr. Risch, Vaduz, Liechtenstein
| | - Lorenz Risch
- Labormedizinisches Zentrum Dr. Risch, Vaduz, Liechtenstein
| | - Martin Risch
- Labormedizinisches Zentrum Dr. Risch, Vaduz, Liechtenstein; Central Laboratory, Kantonsspital Graubünden, Chur, Switzerland
| | - Urs E Nydegger
- Labormedizinisches Zentrum Dr. Risch, Vaduz, Liechtenstein
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