1
|
Muñoz SM, Vallejos-Baccelliere G, Manubens A, Salazar ML, Nascimento AFZ, Tapia-Reyes P, Meneses C, Ambrosio ALB, Becker MI, Guixé V, Castro-Fernandez V. Structural insights into a functional unit from an immunogenic mollusk hemocyanin. Structure 2024; 32:812-823.e4. [PMID: 38513659 DOI: 10.1016/j.str.2024.02.018] [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: 11/10/2023] [Revised: 01/30/2024] [Accepted: 02/23/2024] [Indexed: 03/23/2024]
Abstract
Mollusk hemocyanins, among the largest known proteins, are used as immunostimulants in biomedical and clinical applications. The hemocyanin of the Chilean gastropod Concholepas concholepas (CCH) exhibits unique properties, which makes it safe and effective for human immunotherapy, as observed in animal models of bladder cancer and melanoma, and dendritical cell vaccine trials. Despite its potential, the structure and amino acid sequence of CCH remain unknown. This study reports two sequence fragments of CCH, representing three complete functional units (FUs). We also determined the high-resolution (1.5 Å) X-ray crystal structure of an "FU-g type" from the CCHB subunit. This structure enables in-depth analysis of chemical interactions at the copper-binding center and unveils an unusual, truncated N-glycosylation pattern. These features are linked to eliciting more robust immunological responses in animals, offering insights into CCH's enhanced immunostimulatory properties and opening new avenues for its potential applications in biomedical research and therapies.
Collapse
Affiliation(s)
- Sebastián M Muñoz
- Laboratorio de Bioquímica y Biología Molecular, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago 780003, Chile
| | - Gabriel Vallejos-Baccelliere
- Laboratorio de Bioquímica y Biología Molecular, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago 780003, Chile
| | - Augusto Manubens
- Departamento de Investigación y Desarrollo, Biosonda Corp., Santiago 7750629, Chile; Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750629, Chile
| | - Michelle L Salazar
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750629, Chile
| | - Andrey F Z Nascimento
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo 13083-970, Brazil
| | - Patricio Tapia-Reyes
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Santo Tomás, Santiago 8370003, Chile; Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Claudio Meneses
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile; Departamento de Fruticultura y Enología, Facultad de Agronomía y Sistemas Naturales, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile; Millennium Nucleus Development of Super Adaptable Plants (MN-SAP), Santiago 8331150, Chile; Millennium Institute Center for Genome Regulation (CRG), Santiago 8331150, Chile
| | - Andre L B Ambrosio
- Sao Carlos Institute of Physics (IFSC), University of Sao Paulo (USP), Sao Carlos, Sao Paulo 13563-120, Brazil
| | - María Inés Becker
- Departamento de Investigación y Desarrollo, Biosonda Corp., Santiago 7750629, Chile; Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750629, Chile
| | - Victoria Guixé
- Laboratorio de Bioquímica y Biología Molecular, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago 780003, Chile.
| | - Victor Castro-Fernandez
- Laboratorio de Bioquímica y Biología Molecular, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago 780003, Chile.
| |
Collapse
|
2
|
Ji R, Guan L, Hu Z, Cheng Y, Cai M, Zhao G, Zang J. A comprehensive review on hemocyanin from marine products: Structure, functions, its implications for the food industry and beyond. Int J Biol Macromol 2024; 269:132041. [PMID: 38705315 DOI: 10.1016/j.ijbiomac.2024.132041] [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: 02/21/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/07/2024]
Abstract
Hemocyanin, an oxygen-transport protein, is widely distributed in the hemolymph of marine arthropods and mollusks, playing an important role in their physiological processes. Recently, hemocyanin has been recognized as a multifunctional glycoprotein involved in the immunological responses of aquatic invertebrates. Consequently, the link between hemocyanin functions and their potential applications has garnered increased attention. This review offers an integrated overview of hemocyanin's structure, physicochemical characteristics, and bioactivities to further promote the utilization of hemocyanin derived from marine products. Specifically, we review its implication in two aspects of food and aquaculture industries: quality and health. Hemocyanin's inducible phenoloxidase activity is thought to be an inducer of melanosis in crustaceans. New anti-melanosis agents targeted to hemocyanin need to be explored. The red-color change observed in shrimp shells is related to hemocyanin, affecting consumer preferences. Hemocyanin's adaptive modification in response to the aquatic environment is available as a biomarker. Additionally, hemocyanin is endowed with bioactivities encompassing anti-microbial, antiviral, and therapeutic activities. Hemocyanin is also a novel allergen and its allergenic features remain incompletely characterized.
Collapse
Affiliation(s)
- Ruiyang Ji
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Leying Guan
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Ziyan Hu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yishen Cheng
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Meng Cai
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Guanghua Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jiachen Zang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| |
Collapse
|
3
|
Georgieva A, Todorova K, Iliev I, Dilcheva V, Vladov I, Petkova S, Dolashki A, Velkova L, Dolashka P, Toshkova R. Assessment of the In Vitro and In Vivo Antitumor Activity of Hemocyanins from Helix aspersa, Helix lucorum, and Rapana venosa in a Graffi Myeloid Tumor Model. Biomedicines 2023; 11:1545. [PMID: 37371641 DOI: 10.3390/biomedicines11061545] [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: 05/03/2023] [Revised: 05/18/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Hemocyanins are oxygen-transporting glycoproteins in the hemolymph of some invertebrate species that attracted scientific interest as potential anticancer agents. The present study aims to assess the in vitro and in vivo anticancer activity of hemocyanins isolated from Helix aspersa, Helix lucorum, and Rapana venosa in the Graffi myeloid tumor model. The in vitro antitumor activity of the hemocyanins was determined by a MTT test and cytomorphological analysis by fluorescent and transmission electron microscopy. The in vivo effects of the hemocyanins were examined in hamsters transplanted with Graffi tumor. The serum antibody titers against the tested hemocyanins and tumor antigen were determined by ELISA. Histopathological assessment of the morphological features related to antitumor effect, immune system response, and toxicity in some internal organs was performed. The results of in vitro studies indicated that the tested hemocyanins induced significant antiproliferative and apoptogenic effects. The in vivo investigations demonstrated a protective antitumor effect, expressed in reduced transplantability, suppression of tumor growth and metastasis, reduced mortality, prolonged survival time, and absence of toxic side effects. The present study indicated that the antitumor activity of the studied hemocyanins was due to both immune stimulation and direct effects on the tumor cells, and they displayed their potential as therapeutic agents against hematological malignances.
Collapse
Affiliation(s)
- Ani Georgieva
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113 Sofia, Bulgaria
| | - Katerina Todorova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113 Sofia, Bulgaria
| | - Ivan Iliev
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113 Sofia, Bulgaria
| | - Valeria Dilcheva
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113 Sofia, Bulgaria
| | - Ivelin Vladov
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113 Sofia, Bulgaria
| | - Svetlozara Petkova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113 Sofia, Bulgaria
| | - Aleksandar Dolashki
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 9, 1113 Sofia, Bulgaria
| | - Lyudmila Velkova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 9, 1113 Sofia, Bulgaria
| | - Pavlina Dolashka
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 9, 1113 Sofia, Bulgaria
| | - Reneta Toshkova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 25, 1113 Sofia, Bulgaria
| |
Collapse
|
4
|
Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2017-2018. MASS SPECTROMETRY REVIEWS 2023; 42:227-431. [PMID: 34719822 DOI: 10.1002/mas.21721] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
This review is the tenth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2018. Also included are papers that describe methods appropriate to glycan and glycoprotein analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, new methods, matrices, derivatization, MALDI imaging, fragmentation and the use of arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Most of the applications are presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. The reported work shows increasing use of combined new techniques such as ion mobility and highlights the impact that MALDI imaging is having across a range of diciplines. MALDI is still an ideal technique for carbohydrate analysis and advancements in the technique and the range of applications continue steady progress.
Collapse
Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford, UK
| |
Collapse
|
5
|
Díaz-Dinamarca DA, Salazar ML, Castillo BN, Manubens A, Vasquez AE, Salazar F, Becker MI. Protein-Based Adjuvants for Vaccines as Immunomodulators of the Innate and Adaptive Immune Response: Current Knowledge, Challenges, and Future Opportunities. Pharmaceutics 2022; 14:pharmaceutics14081671. [PMID: 36015297 PMCID: PMC9414397 DOI: 10.3390/pharmaceutics14081671] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/05/2022] [Accepted: 08/07/2022] [Indexed: 12/03/2022] Open
Abstract
New-generation vaccines, formulated with subunits or nucleic acids, are less immunogenic than classical vaccines formulated with live-attenuated or inactivated pathogens. This difference has led to an intensified search for additional potent vaccine adjuvants that meet safety and efficacy criteria and confer long-term protection. This review provides an overview of protein-based adjuvants (PBAs) obtained from different organisms, including bacteria, mollusks, plants, and humans. Notably, despite structural differences, all PBAs show significant immunostimulatory properties, eliciting B-cell- and T-cell-mediated immune responses to administered antigens, providing advantages over many currently adopted adjuvant approaches. Furthermore, PBAs are natural biocompatible and biodegradable substances that induce minimal reactogenicity and toxicity and interact with innate immune receptors, enhancing their endocytosis and modulating subsequent adaptive immune responses. We propose that PBAs can contribute to the development of vaccines against complex pathogens, including intracellular pathogens such as Mycobacterium tuberculosis, those with complex life cycles such as Plasmodium falciparum, those that induce host immune dysfunction such as HIV, those that target immunocompromised individuals such as fungi, those with a latent disease phase such as Herpes, those that are antigenically variable such as SARS-CoV-2 and those that undergo continuous evolution, to reduce the likelihood of outbreaks.
Collapse
Affiliation(s)
- Diego A. Díaz-Dinamarca
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750000, Chile
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago 7750000, Chile
| | - Michelle L. Salazar
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750000, Chile
| | - Byron N. Castillo
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750000, Chile
| | - Augusto Manubens
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750000, Chile
- Biosonda Corporation, Santiago 7750000, Chile
| | - Abel E. Vasquez
- Sección de Biotecnología, Departamento Agencia Nacional de Dispositivos Médicos, Innovación y Desarrollo, Instituto de Salud Pública de Chile, Santiago 7750000, Chile
- Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, Providencia, Santiago 8320000, Chile
| | - Fabián Salazar
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750000, Chile
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter EX4 4QD, UK
- Correspondence: (F.S.); (M.I.B.)
| | - María Inés Becker
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750000, Chile
- Biosonda Corporation, Santiago 7750000, Chile
- Correspondence: (F.S.); (M.I.B.)
| |
Collapse
|
6
|
Mollusc N-glycosylation: Structures, Functions and Perspectives. Biomolecules 2021; 11:biom11121820. [PMID: 34944464 PMCID: PMC8699351 DOI: 10.3390/biom11121820] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/01/2021] [Accepted: 12/01/2021] [Indexed: 12/22/2022] Open
Abstract
Molluscs display a sophisticated N-glycan pattern on their proteins, which is, in terms of involved structural features, even more diverse than that of vertebrates. This review summarises the current knowledge of mollusc N-glycan structures, with a focus on the functional aspects of the corresponding glycoproteins. Furthermore, the potential of mollusc-derived biomolecules for medical applications is addressed, emphasising the importance of mollusc research.
Collapse
|
7
|
Dolashka P, Daskalova A, Dolashki A, Voelter W. De Novo Structural Determination of the Oligosaccharide Structure of Hemocyanins from Molluscs. Biomolecules 2020; 10:biom10111470. [PMID: 33105875 PMCID: PMC7690630 DOI: 10.3390/biom10111470] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 12/04/2022] Open
Abstract
A number of studies have shown that glycosylation of proteins plays diverse functions in the lives of organisms, has crucial biological and physiological roles in pathogen–host interactions, and is involved in a large number of biological events in the immune system, and in virus and bacteria recognition. The large amount of scientific interest in glycoproteins of molluscan hemocyanins is due not only to their complex quaternary structures, but also to the great diversity of their oligosaccharide structures with a high carbohydrate content (2–9%). This great variety is due to their specific monosaccharide composition and different side chain composition. The determination of glycans and glycopeptides was performed with the most commonly used methods for the analysis of biomolecules, including peptides and proteins, including Matrix Assisted Laser Desorption/Ionisation–Time of Flight (MALDI-TOF-TOF), Liquid Chromatography - Electrospray Ionization-Mass Spectrometry (LC/ESI-MS), Liquid Chromatography (LC-Q-trap-MS/MS) or Nano- Electrospray Ionization-Mass Spectrometry (nano-ESI-MS) and others. The molluscan hemocyanins have complex carbohydrate structures with predominant N-linked glycans. Of interest are identified structures with methylated hexoses and xyloses arranged at different positions in the carbohydrate moieties of molluscan hemocyanins. Novel acidic glycan structures with specific glycosylation positions, e.g., hemocyanins that enable a deeper insight into the glycosylation process, were observed in Rapana venosa, Helix lucorum, and Haliotis tuberculata. Recent studies demonstrate that glycosylation plays a crucial physiological role in the immunostimulatory and therapeutic effect of glycoproteins. The remarkable diversity of hemocyanin glycan content is an important feature of their immune function and provides a new concept in the antibody–antigen interaction through clustered carbohydrate epitopes.
Collapse
Affiliation(s)
- Pavlina Dolashka
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria or (A.D.); (A.D.)
- Correspondence: or ; Tel.:+359-887193423
| | - Asya Daskalova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria or (A.D.); (A.D.)
| | - Aleksandar Dolashki
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria or (A.D.); (A.D.)
| | - Wolfgang Voelter
- Interfacultary Institute of Biochemistry, University of Tuebingen, 72074 Tuebingen, Germany;
| |
Collapse
|
8
|
Hei Z, Zhao M, Tian Y, Chang H, Shen X, Xia G, Wang J. Isolation and Characterization of a Novel Sialoglycopeptide Promoting Osteogenesis from Gadus morhua Eggs. Molecules 2019; 25:molecules25010156. [PMID: 31906039 PMCID: PMC6983019 DOI: 10.3390/molecules25010156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/23/2019] [Accepted: 12/27/2019] [Indexed: 12/12/2022] Open
Abstract
Gadus morhua eggs contain several nutrients, including polyunsaturated fatty acids, lecithin and glycoproteins. A novel sialoglycopeptide from the eggs of G. morhua (Gm-SGPP) was extracted with 90% phenol and purified by Q Sepharose Fast Flow (QFF) ion exchange chromatography, followed by S-300 gel filtration chromatography. Gm-SGPP contained 63.7% carbohydrate, 16.2% protein and 18.6% N-acetylneuraminic acid. High-performance size exclusion chromatography and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) demonstrated that Gm-SGPP is a 7000-Da pure sialoglycopeptide. β-elimination reaction suggested that Gm-SGPP contained N-glycan units. Amino acid N-terminal sequence analysis indicated the presence of Ala-Ser-Asn-Gly-Thr-Gln-Ala-Pro amino acid sequence. Moreover, N-glycan was connected at the third Asn location of the peptide chain through GlcNAc. Gm-SGPP was composed of D-mannose, D-glucuronic acid and D-galactose. Fourier transform-infrared spectroscopy (FT-IR), 1H-nuclear magnetic resonance spectroscopy (1H-NMR) and methylation analysis were performed to reveal the structure profile of Gm-SGPP. In vitro results showed that the proliferation activity of MC3T3-E1 cells was significantly promoted by Gm-SGPP. In vivo data revealed that Gm-SGPP increased the calcium and phosphorus content of tibias and promoted longitudinal bone growth in adolescent rats.
Collapse
Affiliation(s)
- Zhiliang Hei
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Hainan University, Hainan 570228, China
- College of Food Science and Technology, Hainan University, Hainan 570228, China
| | - Meihui Zhao
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Hainan University, Hainan 570228, China
- College of Food Science and Technology, Hainan University, Hainan 570228, China
| | - Yingying Tian
- Marine Biomedical Research Institute of Qingdao, Qingdao 266003, China
| | - Hong Chang
- Hainan Institute for Food Control, Hainan 570228, China
| | - Xuanri Shen
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Hainan University, Hainan 570228, China
- College of Food Science and Technology, Hainan University, Hainan 570228, China
| | - Guanghua Xia
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Hainan University, Hainan 570228, China
- College of Food Science and Technology, Hainan University, Hainan 570228, China
- Correspondence: (G.X.); (J.W.); Tel.: +86-0898-6619-6803 (G.X.); +86-0532-8203-1948 (J.W.); Fax: +86-0532-8203-2468 (G.X.); +86-0898-6619-6803 (J.W.)
| | - Jingfeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
- Correspondence: (G.X.); (J.W.); Tel.: +86-0898-6619-6803 (G.X.); +86-0532-8203-1948 (J.W.); Fax: +86-0532-8203-2468 (G.X.); +86-0898-6619-6803 (J.W.)
| |
Collapse
|
9
|
Salazar ML, Jiménez JM, Villar J, Rivera M, Báez M, Manubens A, Becker MI. N-Glycosylation of mollusk hemocyanins contributes to their structural stability and immunomodulatory properties in mammals. J Biol Chem 2019; 294:19546-19564. [PMID: 31719148 PMCID: PMC6926458 DOI: 10.1074/jbc.ra119.009525] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 10/29/2019] [Indexed: 12/16/2022] Open
Abstract
Hemocyanins are widely used as carriers, adjuvants, and nonspecific immunostimulants in cancer because they promote Th1 immunity in mammals. Hemocyanins also interact with glycan-recognizing innate immune receptors on antigen-presenting cells, such as the C-type lectin immune receptors mannose receptor (MR), macrophage galactose lectin (MGL), and the Toll-like receptors (TLRs), stimulating proinflammatory cytokine secretion. However, the role of N-linked oligosaccharides on the structural and immunological properties of hemocyanin is unclear. Mollusk hemocyanins, such as Concholepas concholepas (CCH), Fissurella latimarginata (FLH), and Megathura crenulata (KLH), are oligomeric glycoproteins with complex dodecameric quaternary structures and heterogeneous glycosylation patterns, primarily consisting of mannose-rich N-glycans. Here, we report that enzyme-catalyzed N-deglycosylation of CCH, FLH, and KLH disrupts their quaternary structure and impairs their immunogenic effects. Biochemical analyses revealed that the deglycosylation does not change hemocyanin secondary structure but alters their refolding mechanism and dodecameric structure. Immunochemical analyses indicated decreased binding of N-deglycosylated hemocyanins to the MR and MGL receptors and TLR4 and reduced endocytosis concomitant with an impaired production of tumor necrosis factor α, and interleukins 6 and 12 (IL-6 and IL-12p40, respectively) in macrophages. Evaluating the function of N-deglycosylated hemocyanins in the humoral immune response and their nonspecific antitumor effects in the B16F10 melanoma model, we found that compared with native hemocyanins N-deglycosylated hemocyanins elicited reduced antibody titers, as well as partially diminished antitumor effects and altered carrier activities. In conclusion, the glycan content of hemocyanins is, among other structural characteristics, critically required for their immunological activities and should be considered in biomedical applications.
Collapse
Affiliation(s)
- Michelle L Salazar
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750269, Chile
| | - José M Jiménez
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750269, Chile
| | - Javiera Villar
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750269, Chile
| | - Maira Rivera
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile
| | - Mauricio Báez
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile
| | - Augusto Manubens
- Departamento de Investigación y Desarrollo, Biosonda Corp., Santiago 7750269, Chile
| | - María Inés Becker
- Fundación Ciencia y Tecnología para el Desarrollo (FUCITED), Santiago 7750269, Chile .,Departamento de Investigación y Desarrollo, Biosonda Corp., Santiago 7750269, Chile
| |
Collapse
|
10
|
Mass spectrometry-based qualitative and quantitative N-glycomics: An update of 2017-2018. Anal Chim Acta 2019; 1091:1-22. [PMID: 31679562 DOI: 10.1016/j.aca.2019.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 10/04/2019] [Accepted: 10/05/2019] [Indexed: 12/14/2022]
Abstract
N-glycosylation is one of the most frequently occurring protein post-translational modifications (PTMs) with broad cellular, physiological and pathological relevance. Mass spectrometry-based N-glycomics has become the state-of-the-art instrumental analytical pipeline for sensitive, high-throughput and comprehensive characterization of N-glycans and N-glycomes. Improvement and new development of methods in N-glycan release, enrichment, derivatization, isotopic labeling, separation, ionization, MS, tandem MS and informatics accompany side-by-side wider and deeper application. This review provides a comprehensive update of mass spectrometry-based qualitative and quantitative N-glycomics in the years of 2017-2018.
Collapse
|
11
|
Tjondro HC, Loke I, Chatterjee S, Thaysen-Andersen M. Human protein paucimannosylation: cues from the eukaryotic kingdoms. Biol Rev Camb Philos Soc 2019; 94:2068-2100. [PMID: 31410980 DOI: 10.1111/brv.12548] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 07/10/2019] [Accepted: 07/17/2019] [Indexed: 12/11/2022]
Abstract
Paucimannosidic proteins (PMPs) are bioactive glycoproteins carrying truncated α- or β-mannosyl-terminating asparagine (N)-linked glycans widely reported across the eukaryotic domain. Our understanding of human PMPs remains limited, despite findings documenting their existence and association with human disease glycobiology. This review comprehensively surveys the structures, biosynthetic routes and functions of PMPs across the eukaryotic kingdoms with the aim of synthesising an improved understanding on the role of protein paucimannosylation in human health and diseases. Convincing biochemical, glycoanalytical and biological data detail a vast structural heterogeneity and fascinating tissue- and subcellular-specific expression of PMPs within invertebrates and plants, often comprising multi-α1,3/6-fucosylation and β1,2-xylosylation amongst other glycan modifications and non-glycan substitutions e.g. O-methylation. Vertebrates and protists express less-heterogeneous PMPs typically only comprising variable core fucosylation of bi- and trimannosylchitobiose core glycans. In particular, the Manα1,6Manβ1,4GlcNAc(α1,6Fuc)β1,4GlcNAcβAsn glycan (M2F) decorates various human neutrophil proteins reportedly displaying bioactivity and structural integrity demonstrating that they are not degradation products. Less-truncated paucimannosidic glycans (e.g. M3F) are characteristic glycosylation features of proteins expressed by human cancer and stem cells. Concertedly, these observations suggest the involvement of human PMPs in processes related to innate immunity, tumorigenesis and cellular differentiation. The absence of human PMPs in diverse bodily fluids studied under many (patho)physiological conditions suggests extravascular residence and points to localised functions of PMPs in peripheral tissues. Absence of PMPs in Fungi indicates that paucimannosylation is common, but not universally conserved, in eukaryotes. Relative to human PMPs, the expression of PMPs in plants, invertebrates and protists is more tissue-wide and constitutive yet, similar to their human counterparts, PMP expression remains regulated by the physiology of the producing organism and PMPs evidently serve essential functions in development, cell-cell communication and host-pathogen/symbiont interactions. In most PMP-producing organisms, including humans, the N-acetyl-β-hexosaminidase isoenzymes and linkage-specific α-mannosidases are glycoside hydrolases critical for generating PMPs via N-acetylglucosaminyltransferase I (GnT-I)-dependent and GnT-I-independent truncation pathways. However, the identity and structure of many species-specific PMPs in eukaryotes, their biosynthetic routes, strong tissue- and development-specific expression, and diverse functions are still elusive. Deep exploration of these PMP features involving, for example, the characterisation of endogenous PMP-recognising lectins across a variety of healthy and N-acetyl-β-hexosaminidase-deficient human tissue types and identification of microbial adhesins reactive to human PMPs, are amongst the many tasks required for enhanced insight into the glycobiology of human PMPs. In conclusion, the literature supports the notion that PMPs are significant, yet still heavily under-studied biomolecules in human glycobiology that serve essential functions and create structural heterogeneity not dissimilar to other human N-glycoprotein types. Human PMPs should therefore be recognised as bioactive glycoproteins that are distinctly different from the canonical N-glycoprotein classes and which warrant a more dedicated focus in glycobiological research.
Collapse
Affiliation(s)
- Harry C Tjondro
- Department of Molecular Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Ian Loke
- Department of Molecular Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia.,Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore
| | - Sayantani Chatterjee
- Department of Molecular Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Morten Thaysen-Andersen
- Department of Molecular Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| |
Collapse
|
12
|
Identification and characterization of a novel glycoprotein core xylosidase from the bacterium Elizabethkingia meningoseptica. Biochem Biophys Res Commun 2019; 517:390-397. [PMID: 31358319 DOI: 10.1016/j.bbrc.2019.07.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 07/11/2019] [Indexed: 11/24/2022]
Abstract
Although core xylose on glycoproteins has been implicated in allergy, infection and other biological processes, research on core xylose modification is rare. The lack of a β-d-xylosidase that can catalytically remove the core xylose directly from glycoproteins is a reason for this. Through functional genomic analysis, we identified a glycoprotein core xylosidase and named it gpcXase I. gpcXase I is located immediately downstream of glycoprotein core fucosidase cFase I in Elizabethkingia meningoseptica. These two genes form a functional operon for glycoprotein core modifications. Three acidic residues (Asp-200, Asp-304 and Glu-649) were identified as key catalytic sites for gpcXase I activity, suggesting a unique triacdic mechanize for its activity. Asp-200 was identified a novel and essential base catalysts in the catalytic process, Asp-304 and Glu-649 was function as catalytic nucleophiles and acid catalysts, respectively. In addition, IgE-specific reactions were detected in 55% of serum samples collected from 40 allergic patients, and the reactions were significantly attenuated by removal of the core xylose of the allergen by treatment with gpcXase I. gpcXase I is a novel tool for basic and clinical glycomics.
Collapse
|
13
|
Jiménez JM, Salazar ML, Arancibia S, Villar J, Salazar F, Brown GD, Lavelle EC, Martínez-Pomares L, Ortiz-Quintero J, Lavandero S, Manubens A, Becker MI. TLR4, but Neither Dectin-1 nor Dectin-2, Participates in the Mollusk Hemocyanin-Induced Proinflammatory Effects in Antigen-Presenting Cells From Mammals. Front Immunol 2019; 10:1136. [PMID: 31214162 PMCID: PMC6554540 DOI: 10.3389/fimmu.2019.01136] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 05/07/2019] [Indexed: 11/18/2022] Open
Abstract
Mollusk hemocyanins have biomedical uses as carriers/adjuvants and nonspecific immunostimulants with beneficial clinical outcomes by triggering the production of proinflammatory cytokines in antigen-presenting cells (APCs) and driving immune responses toward type 1 T helper (Th1) polarization. Significant structural features of hemocyanins as a model antigen are their glycosylation patterns. Indeed, hemocyanins have a multivalent nature as highly mannosylated antigens. We have previously shown that hemocyanins are internalized by APCs through receptor-mediated endocytosis with proteins that contain C-type lectin domains, such as mannose receptor (MR). However, the contribution of other innate immune receptors to the proinflammatory signaling pathway triggered by hemocyanins is unknown. Thus, we studied the roles of Dectin-1, Dectin-2, and Toll-like receptor 4 (TLR4) in the hemocyanin activation of murine APCs, both in dendritic cells (DCs) and macrophages, using hemocyanins from Megathura crenulata (KLH), Concholepas concholepas (CCH) and Fissurella latimarginata (FLH). The results showed that these hemocyanins bound to chimeric Dectin-1 and Dectin-2 receptors in vitro; which significantly decreased when the glycoproteins were deglycosylated. However, hemocyanin-induced proinflammatory effects in APCs from Dectin-1 knock-out (KO) and Dectin-2 KO mice were independent of both receptors. Moreover, when wild-type APCs were cultured in the presence of hemocyanins, phosphorylation of Syk kinase was not detected. We further showed that KLH and FLH induced ERK1/2 phosphorylation, a key event involved in the TLR signaling pathway. We confirmed a glycan-dependent binding of hemocyanins to chimeric TLR4 in vitro. Moreover, DCs from mice deficient for MyD88-adapter-like (Mal), a downstream adapter molecule of TLR4, were partially activated by FLH, suggesting a role of the TLR pathway in hemocyanin recognition to activate APCs. The participation of TLR4 was confirmed through a decrease in IL-12p40 and IL-6 secretion induced by FLH when a TLR4 blocking antibody was used; a reduction was also observed in DCs from C3H/HeJ mice, a mouse strain with a nonfunctional mutation for this receptor. Moreover, IL-6 secretion induced by FLH was abolished in macrophages deficient for TLR4. Our data showed the involvement of TLR4 in the hemocyanin-mediated proinflammatory response in APCs, which could cooperate with MR in innate immune recognition of these glycoproteins.
Collapse
Affiliation(s)
- José M Jiménez
- Fundación Ciencia y Tecnología Para el Desarrollo (FUCITED), Santiago, Chile
| | - Michelle L Salazar
- Fundación Ciencia y Tecnología Para el Desarrollo (FUCITED), Santiago, Chile
| | - Sergio Arancibia
- Fundación Ciencia y Tecnología Para el Desarrollo (FUCITED), Santiago, Chile
| | - Javiera Villar
- Fundación Ciencia y Tecnología Para el Desarrollo (FUCITED), Santiago, Chile
| | - Fabián Salazar
- Fundación Ciencia y Tecnología Para el Desarrollo (FUCITED), Santiago, Chile.,Aberdeen Fungal Group, Medical Research Council Centre for Medical Mycology, University of Aberdeen, Aberdeen, United Kingdom
| | - Gordon D Brown
- Aberdeen Fungal Group, Medical Research Council Centre for Medical Mycology, University of Aberdeen, Aberdeen, United Kingdom
| | - Ed C Lavelle
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | | | - Jafet Ortiz-Quintero
- Facultad de Ciencias Químicas y Farmacéuticas, Facultad de Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | - Sergio Lavandero
- Facultad de Ciencias Químicas y Farmacéuticas, Facultad de Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | | | - María Inés Becker
- Fundación Ciencia y Tecnología Para el Desarrollo (FUCITED), Santiago, Chile.,Biosonda Corporation, Santiago, Chile
| |
Collapse
|
14
|
Zhang Z, Li R, Aweya JJ, Wang F, Zhong M, Zhang Y. Identification and characterization of glycosylation sites on Litopenaeus vannamei hemocyanin. FEBS Lett 2019; 593:820-830. [PMID: 30901486 DOI: 10.1002/1873-3468.13367] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/01/2019] [Accepted: 03/05/2019] [Indexed: 11/06/2022]
Abstract
The respiratory glycoprotein hemocyanin has been implicated in immune-related functions. Using lectin blotting, we show that the binding of shrimp (Litopenaeus vannamei) hemocyanin to concanavalin A decreases markedly with O-glycosidase treatment but not with PNGase F. Twelve O-glycosylation sites, three on the large hemocyanin subunit and nine on the small hemocyanin subunit (HMCs), were identified by LC-MS/MS. Importantly, when the glycosylation sites at Thr-537, Ser-539, and Thr-542 on the C terminus of HMCs were replaced with alanine, the resultant mutant hemocyanin had reduced carbohydrate content, coupled with a fourfold reduction in bacterial agglutination and 0.2-fold reduction in antibacterial activities toward Vibrio parahaemolyticus and Staphylococcus aureus. These results suggest that the glycosylation sites on shrimp hemocyanin are closely related to its immunological functions.
Collapse
Affiliation(s)
- Zehui Zhang
- Department of Biology, Guangdong Provincial Key laboratory of Marine Biotechnology, Shantou University, China
| | - Ruiwei Li
- Department of Biology, Guangdong Provincial Key laboratory of Marine Biotechnology, Shantou University, China
| | - Jude Juventus Aweya
- Department of Biology, Guangdong Provincial Key laboratory of Marine Biotechnology, Shantou University, China
| | - Fan Wang
- Department of Biology, Guangdong Provincial Key laboratory of Marine Biotechnology, Shantou University, China
| | - Mingqi Zhong
- Department of Biology, Guangdong Provincial Key laboratory of Marine Biotechnology, Shantou University, China
| | - Yueling Zhang
- Department of Biology, Guangdong Provincial Key laboratory of Marine Biotechnology, Shantou University, China
| |
Collapse
|
15
|
Palacios M, Tampe R, Del Campo M, Zhong TY, López MN, Salazar-Onfray F, Becker MI. Antitumor activity and carrier properties of novel hemocyanins coupled to a mimotope of GD2 ganglioside. Eur J Med Chem 2018. [DOI: 10.1016/j.ejmech.2018.02.082] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|