101
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Faltinek L, Fujdiarová E, Melicher F, Houser J, Kašáková M, Kondakov N, Kononov L, Parkan K, Vidal S, Wimmerová M. Lectin PLL3, a Novel Monomeric Member of the Seven-Bladed β-Propeller Lectin Family. Molecules 2019; 24:E4540. [PMID: 31835851 PMCID: PMC6943638 DOI: 10.3390/molecules24244540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/05/2019] [Accepted: 12/07/2019] [Indexed: 01/23/2023] Open
Abstract
The Photorhabdus species is a Gram-negative bacteria of the family Morganellaceae that is known for its mutualistic relationship with Heterorhabditis nematodes and pathogenicity toward insects. This study is focused on the characterization of the recombinant lectin PLL3 with an origin in P. laumondii subsp. laumondii. PLL3 belongs to the PLL family of lectins with a seven-bladed β-propeller fold. The binding properties of PLL3 were tested by hemagglutination assay, glycan array, isothermal titration calorimetry, and surface plasmon resonance, and its structure was determined by X-ray crystallography. Obtained data revealed that PLL3 binds similar carbohydrates to those that the other PLL family members bind, with some differences in the binding properties. PLL3 exhibited the highest affinity toward l-fucose and its derivatives but was also able to interact with O-methylated glycans and other ligands. Unlike the other members of this family, PLL3 was discovered to be a monomer, which might correspond to a weaker avidity effect compared to homologous lectins. Based on the similarity to the related lectins and their proposed biological function, PLL3 might accompany them during the interaction of P. laumondii with both the nematode partner and the insect host.
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Affiliation(s)
- Lukáš Faltinek
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic;
| | - Eva Fujdiarová
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (E.F.); (F.M.); (J.H.)
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Filip Melicher
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (E.F.); (F.M.); (J.H.)
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Josef Houser
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (E.F.); (F.M.); (J.H.)
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Martina Kašáková
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology, Prague (UCTP), Technická 5, 166 28 Prague, Czech Republic; (M.K.); (K.P.)
| | - Nikolay Kondakov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119 415, Russia; (N.K.); (L.K.)
| | - Leonid Kononov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119 415, Russia; (N.K.); (L.K.)
| | - Kamil Parkan
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology, Prague (UCTP), Technická 5, 166 28 Prague, Czech Republic; (M.K.); (K.P.)
| | - Sébastien Vidal
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, CO2-Glyco, UMR 5246, CNRS, Université Claude Bernard Lyon 1, 43 Boulevard du 11 Novembre 1918, 6922 Villeurbanne, France;
| | - Michaela Wimmerová
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic;
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (E.F.); (F.M.); (J.H.)
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
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102
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Zhang Z, Han K, Dai X, Zhang R, Cao X, Zhang C, Wang K, Huang X, Ren Q. Identification of two LGBPs (isoform1 and isoform2) and their function in AMP expression and PO activation in male hepatopancreas. Fish Shellfish Immunol 2019; 95:624-634. [PMID: 31698072 DOI: 10.1016/j.fsi.2019.10.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 10/19/2019] [Accepted: 10/30/2019] [Indexed: 06/10/2023]
Abstract
Two lipopolysaccharides (LPS) and β-1, 3-glucan binding protein (LGBP), designated as PcLGBP isoform1 and PcLGBP isoform2, respectively, were identified from Procambarus clarkii in this study. The full-length cDNA of PcLGBP isoform1 was 1308 bp containing an open reading frame (ORF) of 1113 bp encoding a protein of 370 amino acids. The full-length cDNA of PcLGBP isoform2 was 1440 bp containing an ORF of 1245 bp encoding a protein of 414 amino acids. Predicted PcLGBP isoform1 and PcLGBP isoform 2 proteins contained a signal peptide, a glycoside hydrolase domain, and a low-complexity region. The difference between the two LGBP isoforms was that PcLGBP isoform2 had 44 more amino acids behind the signal peptide than the PcLGBP isoform1. The PcLGBP isoform1 and PcLGBP isoform2 transcripts mainly expressed in the hepatopancreas in female and male crayfish. Moreover, the expression levels of the two genes in the hepatopancreas were higher in male than that in female crayfish. Upon being challenged with Vibrio parahaemolyticus or LPS, the expression levels of PcLGBP isoform1 and PcLGBP isoform2 in the hepatopancreas of female and male crayfish were most significantly up-regulated at different time points. The transcripts of anti-lipopolysaccharide factors (ALF5, ALF6, ALF8, and ALF9) and crustins (CRU1, CRU2, CRU3, and CRU4) were evidently down-regulated in the hepatopancreas of V. parahaemolyticus-challenged total PcLGBP (including PcLGBP isoform1 and PcLGBP isoform2)-silenced male crayfish. In addition, the phenoloxidase (PO) activity in the hepatopancreas of male crayfish was evidently higher than that of female crayfish. PcLGBP knock down could significantly decrease the PO activity in the hepatopancreas lysate (HLS) in male crayfish. The PO activity of male crayfish HLS was significantly increased when incubated with a mixture of recombinant LGBP protein and LPS or β-1, 3 glucan. We conclude that LGBP isoforms from P. clarkii function as a pattern recognition protein for recognizing and binding LPS and β-1, 3 glucan, and thus regulate the synthesis of antimicrobial peptides and activate the prophenoloxidase system.
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Affiliation(s)
- Zhuoxing Zhang
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, Jiangsu, 210023, China
| | - Keke Han
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, Jiangsu, 210023, China
| | - Xiaoling Dai
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, Jiangsu, 210023, China
| | - Ruidong Zhang
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, Jiangsu, 210023, China
| | - Xueying Cao
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, Jiangsu, 210023, China
| | - Chao Zhang
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, Jiangsu, 210023, China
| | - Kaiqiang Wang
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, Jiangsu, 210023, China
| | - Xin Huang
- College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, Jiangsu, 210023, China.
| | - Qian Ren
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, 250014, China; College of Marine Science and Engineering, Nanjing Normal University, 1 Wenyuan Road, Nanjing, Jiangsu, 210023, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, Jiangsu, 222005, China.
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103
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Chenery AL, Alhallaf R, Agha Z, Ajendra J, Parkinson JE, Cooper MM, Chan BHK, Eichenberger RM, Dent LA, Robertson AAB, Kupz A, Brough D, Loukas A, Sutherland TE, Allen JE, Giacomin PR. Inflammasome-Independent Role for NLRP3 in Controlling Innate Antihelminth Immunity and Tissue Repair in the Lung. J Immunol 2019; 203:2724-2734. [PMID: 31586037 PMCID: PMC6826118 DOI: 10.4049/jimmunol.1900640] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 09/09/2019] [Indexed: 01/03/2023]
Abstract
Alternatively activated macrophages are essential effector cells during type 2 immunity and tissue repair following helminth infections. We previously showed that Ym1, an alternative activation marker, can drive innate IL-1R-dependent neutrophil recruitment during infection with the lung-migrating nematode, Nippostrongylus brasiliensis, suggesting a potential role for the inflammasome in the IL-1-mediated innate response to infection. Although inflammasome proteins such as NLRP3 have important proinflammatory functions in macrophages, their role during type 2 responses and repair are less defined. We therefore infected Nlrp3 -/- mice with N. brasiliensis Unexpectedly, compared with wild-type (WT) mice, infected Nlrp3 -/- mice had increased neutrophilia and eosinophilia, correlating with enhanced worm killing but at the expense of increased tissue damage and delayed lung repair. Transcriptional profiling showed that infected Nlrp3 -/- mice exhibited elevated type 2 gene expression compared with WT mice. Notably, inflammasome activation was not evident early postinfection with N. brasiliensis, and in contrast to Nlrp3 -/- mice, antihelminth responses were unaffected in caspase-1/11-deficient or WT mice treated with the NLRP3-specific inhibitor MCC950. Together these data suggest that NLRP3 has a role in constraining lung neutrophilia, helminth killing, and type 2 immune responses in an inflammasome-independent manner.
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MESH Headings
- Animals
- Caspase 1/physiology
- Chemotaxis, Leukocyte
- Eosinophilia/etiology
- Eosinophilia/immunology
- Furans/pharmacology
- Heterocyclic Compounds, 4 or More Rings
- Immunity, Innate
- Indenes
- Inflammasomes/physiology
- Interleukin-4/pharmacology
- Lectins/biosynthesis
- Lectins/genetics
- Lung/pathology
- Lung/physiology
- Lung Diseases, Parasitic/complications
- Lung Diseases, Parasitic/immunology
- Lung Diseases, Parasitic/pathology
- Lung Diseases, Parasitic/physiopathology
- Macrophages, Alveolar/enzymology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- NLR Family, Pyrin Domain-Containing 3 Protein/antagonists & inhibitors
- NLR Family, Pyrin Domain-Containing 3 Protein/deficiency
- NLR Family, Pyrin Domain-Containing 3 Protein/genetics
- NLR Family, Pyrin Domain-Containing 3 Protein/physiology
- Neutrophils/immunology
- Nippostrongylus/immunology
- Regeneration
- Strongylida Infections/complications
- Strongylida Infections/immunology
- Strongylida Infections/pathology
- Strongylida Infections/physiopathology
- Sulfonamides/pharmacology
- Sulfones
- Transcription, Genetic
- beta-N-Acetylhexosaminidases/biosynthesis
- beta-N-Acetylhexosaminidases/genetics
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Affiliation(s)
- Alistair L Chenery
- Wellcome Centre for Cell-Matrix Research, Manchester M13 9PT, United Kingdom
- Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
- Lydia Becker Institute for Immunology and Infection, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Rafid Alhallaf
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Queensland 4878, Australia
| | - Zainab Agha
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Queensland 4878, Australia
| | - Jesuthas Ajendra
- Wellcome Centre for Cell-Matrix Research, Manchester M13 9PT, United Kingdom
- Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
- Lydia Becker Institute for Immunology and Infection, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
| | - James E Parkinson
- Wellcome Centre for Cell-Matrix Research, Manchester M13 9PT, United Kingdom
- Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
- Lydia Becker Institute for Immunology and Infection, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Martha M Cooper
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Queensland 4878, Australia
| | - Brian H K Chan
- Wellcome Centre for Cell-Matrix Research, Manchester M13 9PT, United Kingdom
- Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
- Lydia Becker Institute for Immunology and Infection, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Ramon M Eichenberger
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Queensland 4878, Australia
| | - Lindsay A Dent
- Department of Molecular and Biomedical Science, School of Biological Sciences, University of Adelaide, Adelaide, South Australia 5000, Australia; and
| | - Avril A B Robertson
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland 4072, Australia
| | - Andreas Kupz
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Queensland 4878, Australia
| | - David Brough
- Lydia Becker Institute for Immunology and Infection, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Alex Loukas
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Queensland 4878, Australia
| | - Tara E Sutherland
- Lydia Becker Institute for Immunology and Infection, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Judith E Allen
- Wellcome Centre for Cell-Matrix Research, Manchester M13 9PT, United Kingdom;
- Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
- Lydia Becker Institute for Immunology and Infection, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Paul R Giacomin
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Smithfield, Queensland 4878, Australia;
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104
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Catania S, Bottinelli M, Fincato A, Gastaldelli M, Barberio A, Gobbo F, Vicenzoni G. Evaluation of Minimum Inhibitory Concentrations for 154 Mycoplasma synoviae isolates from Italy collected during 2012-2017. PLoS One 2019; 14:e0224903. [PMID: 31697761 PMCID: PMC6837496 DOI: 10.1371/journal.pone.0224903] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/23/2019] [Indexed: 11/30/2022] Open
Abstract
Mycoplasma synoviae (MS) is a highly prevalent bacterial species in poultry causing disease and severe economic losses. Antibiotic treatment is one of the control strategies that can be applied to contain clinical outbreaks in MS-free flocks, especially because this bacterium can be transmitted in ovo. It becomes, then, very important for veterinarians to know the antibiotic susceptibility of the circulating strains in order to choose the most appropriate first-line antibiotic molecule as a proactive role in fighting antibiotic resistance. We evaluated the Minimum Inhibitory Concentrations (MICs) of enrofloxacin, oxytetracycline, doxycycline, erythromycin, tylosin, tilmicosin, spiramycin, tiamulin, florfenicol and lincomycin for MS isolates collected between 2012 and 2017 in Italy. A total of 154 MS isolates from different poultry commercial categories (broiler, layer, and turkey sectors) was tested using commercial MIC plates. All MS isolates showed very high MIC values of erythromycin (MIC90 ≥8 μg/mL) and enrofloxacin (MIC90 ≥16 μg/mL). MIC values of doxycycline and oxytetracycline obtained were superimposable to each other with only a one-fold dilution difference. Discrepancies between MIC values of tylosin and tilmicosin were observed. Interestingly, seven isolates showed very high MIC values of lincomycin and tilmicosin, but not all of them showed very high MIC values of tylosin. Most of the MS isolates showed low MIC values of spiramycin, but seven strains showed a MIC ≥16 μg/mL. In the observation period, the frequency of the different MIC classes varied dependently on the tested antibiotic. Interestingly, tilmicosin MICs clearly showed a time-dependent progressive shift towards high-concentration classes, indicative of an on-going selection process among MS isolates. Until standardized breakpoints become available to facilitate data interpretation, it will be fundamental to continue studying MIC value fluctuations in the meantime in order to create a significant database that would facilitate veterinarians in selecting the proper drug for treating this impactful Mycoplasma.
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Affiliation(s)
- Salvatore Catania
- Istituto Zooprofilattico Sperimentale delle Venezie, viale Dell’Università 10, Legnaro (PD), Italy
- * E-mail:
| | - Marco Bottinelli
- Istituto Zooprofilattico Sperimentale delle Venezie, viale Dell’Università 10, Legnaro (PD), Italy
| | - Alice Fincato
- Istituto Zooprofilattico Sperimentale delle Venezie, viale Dell’Università 10, Legnaro (PD), Italy
| | - Michele Gastaldelli
- Istituto Zooprofilattico Sperimentale delle Venezie, viale Dell’Università 10, Legnaro (PD), Italy
| | - Antonio Barberio
- Istituto Zooprofilattico Sperimentale delle Venezie, viale Dell’Università 10, Legnaro (PD), Italy
| | - Federica Gobbo
- Istituto Zooprofilattico Sperimentale delle Venezie, viale Dell’Università 10, Legnaro (PD), Italy
| | - Gaddo Vicenzoni
- Istituto Zooprofilattico Sperimentale delle Venezie, viale Dell’Università 10, Legnaro (PD), Italy
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105
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Malinovská L, Thai Le S, Herczeg M, Vašková M, Houser J, Fujdiarová E, Komárek J, Hodek P, Borbás A, Wimmerová M, Csávás M. Synthesis of β-d-galactopyranoside-Presenting Glycoclusters, Investigation of Their Interactions with Pseudomonas aeruginosa Lectin A (PA-IL) and Evaluation of Their Anti-Adhesion Potential. Biomolecules 2019; 9:E686. [PMID: 31683947 PMCID: PMC6920806 DOI: 10.3390/biom9110686] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 12/19/2022] Open
Abstract
Pseudomonas aeruginosa is an opportunistic human pathogen associated with cystic fibrosis. This bacterium produces, among other virulence factors, a soluble d-galactose-specific lectin PA-IL (LecA). PA-IL plays an important role in the adhesion to the host cells and is also cytotoxic. Therefore, this protein is an interesting therapeutic target, suitable for inhibition by carbohydrate-based compounds. In the current study, β-d-galactopyranoside-containing tri- and tetravalent glycoclusters were synthesized. Methyl gallate and pentaerythritol equipped with propargyl groups were chosen as multivalent scaffolds and the galactoclusters were built from the above-mentioned cores by coupling ethylene or tetraethylene glycol-bridges and peracetylated propargyl β-d-galactosides using 1,3-dipolar azide-alkyne cycloaddition. The interaction between galactoside derivatives and PA-IL was investigated by several biophysical methods, including hemagglutination inhibition assay, isothermal titration calorimetry, analytical ultracentrifugation, and surface plasmon resonance. Their ability to inhibit the adhesion of P. aeruginosa to bronchial cells was determined by ex vivo assay. The newly synthesized multivalent galactoclusters proved to be significantly better ligands than simple d-galactose for lectin PA-IL and as a result, two representatives of the dendrimers were able to decrease adhesion of P. aeruginosa to bronchial cells to approximately 32% and 42%, respectively. The results may provide an opportunity to develop anti-adhesion therapy for the treatment of P. aeruginosa infection.
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Affiliation(s)
- Lenka Malinovská
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Son Thai Le
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
| | - Mihály Herczeg
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
- Research Group for Oligosaccharide Chemistry of Hungarian Academy of Sciences, Egyetem tér 1, H-4032 Debrecen, Hungary.
| | - Michaela Vašková
- Department of Biochemistry, Faculty of Science, Charles University, Albertov 2030, 128 40 Prague 2, Czech Republic.
| | - Josef Houser
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Eva Fujdiarová
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Jan Komárek
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Petr Hodek
- Department of Biochemistry, Faculty of Science, Charles University, Albertov 2030, 128 40 Prague 2, Czech Republic.
| | - Anikó Borbás
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
| | - Michaela Wimmerová
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Magdolna Csávás
- Department of Pharmaceutical Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
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106
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Sánchez-Salgado JL, Pereyra MA, Agundis C, Calzada-Ruiz M, Kantun-Briceño E, Zenteno E. In vivo administration of LPS and β-glucan generates the expression of a serum lectin and its cellular receptor in Cherax quadricarinatus. Fish Shellfish Immunol 2019; 94:10-16. [PMID: 31465869 DOI: 10.1016/j.fsi.2019.08.061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 08/20/2019] [Accepted: 08/24/2019] [Indexed: 06/10/2023]
Abstract
In crustaceans, it has been suggested that specific protection against pathogens could be triggered by vaccines and biological response modifiers; although the specific mechanisms of this protection have not been clarified yet. In the crayfish Cherax quadricarinatus, a humoral lectin (CqL) binds its own granular hemocytes through a specific receptor (CqLR) and increases the production of reactive oxygen species (ROS). In the present study, we challenged in vivo crayfishes with immunostimulants, β-glucan (200 μg/kg) or LPS (20 μg/kg), and identified the participation of cellular and humoral mechanisms. The stimulants generated a complex modification in the total hemocytes count (THC), as well as in the proportion of hemocyte subsets. At 2 h after the challenge, the largest value in THC was observed in either challenged crayfishes. Furthermore, at the same time, hyaline hemocytes were the most abundant subset in the hemolymph; after 6 h, granular hemocytes (GH) were the most abundant hemocyte subset. It has been observed that a specific subset of GH possesses a CqLR that has been related to ROS production. After 2 and 6 h of the β-glucan challenge, a significant increase in CqLR expression was observed in the three circulating hemocyte subsets; also, an increased expression of CqL was detected in a granular hemocytes sub-population. After 2 and 6 h of stimulation, the specific activity of the serum lectin challenged with β-glucan was 250% and 160% higher than in the LPS-treated-group, respectively (P < 0.05). Hemocytes from challenged crayfishes were stimulated ex vivo with CqL, ROS production was 180% higher in hemocytes treated with β-glucan + CqL than in hemocytes treated with LPS + CqL (P < 0.05). The results evidence the effectivity of immune stimulators to activate specific crayfish defense mechanisms, the participation of CqL and its receptor (CqLR) could play an important role in the regulation of immune cellular functions, like ROS production, in Cherax quadricarinatus.
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Affiliation(s)
- José Luis Sánchez-Salgado
- Departamento de Bioquímica, Facultad de Medicina Universidad Nacional Autónoma de México, Mexico City, Mexico.
| | - Mohamed Alí Pereyra
- Departamento de Bioquímica, Facultad de Medicina Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Concepción Agundis
- Departamento de Bioquímica, Facultad de Medicina Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Montserrat Calzada-Ruiz
- Departamento de Bioquímica, Facultad de Medicina Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Erika Kantun-Briceño
- Departamento de Bioquímica, Facultad de Medicina Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Edgar Zenteno
- Departamento de Bioquímica, Facultad de Medicina Universidad Nacional Autónoma de México, Mexico City, Mexico; Centro de Investigaciones, Facultad de Medicina UNAM-Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
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107
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Zhang J, Zhang Y, Zhang L, Wei Q, Liu X, Yang D. A sialic acid-binding lectin with bactericidal and opsonic activities from Ruditapes philippinarum. Fish Shellfish Immunol 2019; 94:72-80. [PMID: 31472263 DOI: 10.1016/j.fsi.2019.08.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 08/08/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
In the present study, a sialic acid-binding lectin was cloned and characterized from Manila clam Ruditapes philippinarum (designed as RpSabl). The open reading frame of RpSabl encoded a polypeptide of 162 amino acids with a calculated molecular mass of 17.7 kDa. Analysis of the conserved domain suggested that RpSabl was a new member of the sialic acid-binding lectins family. In non-stimulated clams, RpSabl transcripts were constitutively expressed in all five tested tissues, especially in hepatopancreas. After Vibrio anguillarum challenge, the expression of RpSabl mRNA in hepatopancreas was significantly up-regulated at 3 h (3.8-fold, P < 0.05), 6 h (4.9-fold, P < 0.05), 12 h (12.3-fold, P < 0.01) and 24 h (9.7-fold, P < 0.01), while RpSabl transcripts in hemocytes was only significantly up-regulated at 6 h (8.5-Fold, P < 0.01). RNAi-mediated knockdown of RpSabl transcripts affected the survival rates of Manila clam against V. anguillarum, perhaps mainly due to the inhibited expression of antibacterial effectors (e.g. lysozyme and defensin). Moreover, recombinant protein of RpSabl (rRpSabl) possessed binding activities towards lipopolysaccharides (LPS), peptidoglycan (PGN) and glucan in vitro. Coinciding with the Pathogen-associated molecular patterns (PAMPs) binding assay, rRpSabl displayed broad bacterial-agglutination properties towards Vibrio harveyi, Vibrio splendidus, V. anguillarum, Enterobacter cloacae and Aeromonas hydrophila. Meanwhile, the phagocytosis and encapsulation ability of hemocytes could be significantly enhanced by rRpSabl incubation. All these results showed that RpSabl could function as a versatile molecule involved in the innate immune responses of R. philippinarum.
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Affiliation(s)
- Jianning Zhang
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Yifei Zhang
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Linbao Zhang
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Guangzhou, 510300, PR China
| | - Qianyu Wei
- Center for Ocean Mega-science, Chinese Academy of Sciences, Qingdao, Shandong, 266071, PR China
| | - Xiaoli Liu
- School of Life Sciences, Ludong University, Yantai, 264025, PR China; The Coastal Resources and Environment Team for Blue-Yellow Area, Ludong University, Yantai, 264025, PR China.
| | - Dinglong Yang
- Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, PR China; Center for Ocean Mega-science, Chinese Academy of Sciences, Qingdao, Shandong, 266071, PR China.
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Li S, Ruan Z, Yang X, Li M, Yang D. Immune recognition, antimicrobial and opsonic activities mediated by a sialic acid binding lectin from Ruditapes philippinarum. Fish Shellfish Immunol 2019; 93:66-72. [PMID: 31306758 DOI: 10.1016/j.fsi.2019.07.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/05/2019] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
In the present study, a sialic acid-binding lectin was identified and characterized from Manila clam Ruditapes philippinarum (designed as RpSABL-1). Multiple alignments strongly suggested that RpSABL-1 was a new member of the sialic acid-binding lectin family. In non-stimulated clams, RpSABL-1 transcripts were constitutively expressed in all five tested tissues, especially in hepatopancreas. After Vibrio anguillarum challenge, the expression of RpSABL-1 mRNA was significantly up-regulated at 6 h (P < 0.05), 12 h (P < 0.01) and 24 h (P < 0.01). Recombinant RpSABL-1 protein (rRpSABL-1) displayed apparent binding activities towards lipopolysaccharides (LPS) and peptidoglycan (PGN), but not to glucan or chitin in vitro. Coinciding with the PAMPs binding assay, rRpSABL-1 exhibited obvious agglutination activities against Gram-positive bacterium Staphyloccocus aureus, Gram-negative bacteria Escherichia coli, V. anguillarum and Vibrio harveyi. Meanwhile, rRpSABL-1 showed antibacterial activities against E. coli, and biofilm formation of E. coli could also be inhibited after incubated with rRpSABL-1. Moreover, the encapsulation, phagocytosis and chemotactic ability of hemocytes could be enhanced by rRpSABL-1. All these results suggested that RpSABL-1 could function as a pattern recognition receptor with versatile functions in the innate immune responses of R. philippinarum.
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Affiliation(s)
- Shengqiang Li
- College of Agriculture, Ludong University, Yantai, PR China
| | - Zeli Ruan
- College of Agriculture, Ludong University, Yantai, PR China
| | - Xiyun Yang
- College of Agriculture, Ludong University, Yantai, PR China
| | - Mingzhu Li
- College of Agriculture, Ludong University, Yantai, PR China.
| | - Dinglong Yang
- Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, PR China; Center for Ocean Mega-science, Chinese Academy of Sciences, Qingdao, Shandong, 266071, PR China.
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Souvannavong-Vilivong X, Sitticharoon C, Klinjampa R, Keadkraichaiwat I, Sripong C, Chatree S, Sririwichitchai R, Lertbunnaphong T. Placental expressions and serum levels of adiponectin, visfatin, and omentin in GDM. Acta Diabetol 2019; 56:1121-1131. [PMID: 31076892 DOI: 10.1007/s00592-019-01355-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 04/29/2019] [Indexed: 01/16/2023]
Abstract
AIMS Adiponectin, visfatin, and omentin have been shown to be associated with insulin sensitivity and might have a role in the pathophysiology of gestational diabetes mellitus (GDM). This study aimed to (1) compare adiponectin, visfatin, and omentin mRNA expressions in placenta and their serum levels between normal pregnancy (NP) and GDM class A1 (GDMA1) pregnancy and (2) determine correlations between placental gene expressions as well as serum levels with maternal and neonatal clinical parameters in all, NP, and GDM subjects. METHODS NP subjects (n = 37), who had normal medical history during their pregnancies without diagnosis of any abnormalities and GDMA1 subjects (n = 37), who were diagnosed since they had antenatal care, were recruited when they were in labor with a gestational age of at least 34 weeks. Clinical parameters and serum adiponectin, visfatin, and omentin levels were measured in the delivery room. RESULTS GDMA1 subjects had higher serum visfatin and plasma glucose levels, but lower serum omentin levels (p < 0.05 all) compared to controls, with comparable levels of placental adiponectin, visfatin, and omentin expressions, plasma insulin, and indices of insulin sensitivity and insulin resistance. Serum visfatin was negatively correlated with neonatal weight and length in the GDM group (p < 0.05 all). Serum omentin was negatively correlated with pre-pregnancy body mass index and waist circumference only in the NP group (p < 0.05 all). Serum adiponectin was negatively correlated with maternal age and HOMA-IR in the NP group (p < 0.05 all) and with placental weight and serum omentin in the GDM group (p < 0.05 all). CONCLUSIONS In conclusion, in GDMA1, increased serum visfatin, which has insulin-mimetic effect, might be associated with a compensatory mechanism that improves the impaired insulin function. Decreased serum omentin in GDMA1, which is normally found in visceral obesity, might lead to insulin resistance and contribute to the pathophysiology of GDM.
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Affiliation(s)
- Xaynaly Souvannavong-Vilivong
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Siriraj, Bangkoknoi, Bangkok, 10700, Thailand
| | - Chantacha Sitticharoon
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Siriraj, Bangkoknoi, Bangkok, 10700, Thailand.
| | - Roongrit Klinjampa
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Siriraj, Bangkoknoi, Bangkok, 10700, Thailand
- Faculty of Medicine and Public Health, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, 10210, Thailand
| | - Issarawan Keadkraichaiwat
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Siriraj, Bangkoknoi, Bangkok, 10700, Thailand
| | - Chanakarn Sripong
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Siriraj, Bangkoknoi, Bangkok, 10700, Thailand
| | - Saimai Chatree
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Siriraj, Bangkoknoi, Bangkok, 10700, Thailand
| | - Rungnapa Sririwichitchai
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd, Siriraj, Bangkoknoi, Bangkok, 10700, Thailand
| | - Tripop Lertbunnaphong
- Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
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Mo X, Liu W, Yang Y, Imani S, Lu S, Dan G, Nie X, Yan J, Zhan R, Li X, Deng Y, Chen B, Cai Y. NCF2, MYO1F, S1PR4, and FCN1 as potential noninvasive diagnostic biomarkers in patients with obstructive coronary artery: A weighted gene co-expression network analysis. J Cell Biochem 2019; 120:18219-18235. [PMID: 31245869 PMCID: PMC6771964 DOI: 10.1002/jcb.29128] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 05/05/2019] [Accepted: 05/07/2019] [Indexed: 12/11/2022]
Abstract
This study aims to explore the predictive noninvasive biomarker for obstructive coronary artery disease (CAD). By using the data set GSE90074, weighted gene co-expression network analysis (WGCNA), and protein-protein interactive network, construction of differentially expressed genes in peripheral blood mononuclear cells was conducted to identify the most significant gene clusters associated with obstructive CAD. Univariate and multivariate stepwise logistic regression analyses and receiver operating characteristic analysis were used to predicate the diagnostic accuracy of biomarker candidates in the detection of obstructive CAD. Furthermore, functional prediction of candidate gene biomarkers was further confirmed in ST-segment elevation myocardial infarction (STEMI) patients or stable CAD patients by using the datasets of GSE62646 and GSE59867. We found that the blue module discriminated by WGCNA contained 13 hub-genes that could be independent risk factors for obstructive CAD (P < .05). Among these 13 hub-genes, a four-gene signature including neutrophil cytosol factor 2 (NCF2, P = .025), myosin-If (MYO1F, P = .001), sphingosine-1-phosphate receptor 4 (S1PR4, P = .015), and ficolin-1 (FCN1, P = .012) alone or combined with two risk factors (male sex and hyperlipidemia) may represent potential diagnostic biomarkers in obstructive CAD. Furthermore, the messenger RNA levels of NCF2, MYO1F, S1PR4, and FCN1 were higher in STEMI patients than that in stable CAD patients, although S1PR4 showed no statistical difference (P > .05). This four-gene signature could also act as a prognostic biomarker to discriminate STEMI patients from stable CAD patients. These findings suggest a four-gene signature (NCF2, MYO1F, S1PR4, and FCN1) alone or combined with two risk factors (male sex and hyperlipidemia) as a promising prognostic biomarker in the diagnosis of STEMI. Well-designed cohort studies should be implemented to warrant the diagnostic value of these genes in clinical purpose.
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Affiliation(s)
- Xian‐Gang Mo
- Department of GeriatricsThe Affiliated Hospital of Guizhou Medical UniversityGuiyangGuizhouChina
| | - Wei Liu
- Health Physical Examination CenterThe Affiliated Hospital of Qingdao UniversityQingdaoShandongChina
| | - Yao Yang
- Institute of Materia Medica, College of PharmacyArmy Medical University (Third Military Medical University)ChongqingChina
| | - Saber Imani
- Department of OncologyThe Affiliated Hospital of Southwest Medical UniversityLuzhouSichuanChina
| | - Shan Lu
- Institute of Materia Medica, College of PharmacyArmy Medical University (Third Military Medical University)ChongqingChina
| | - Guorong Dan
- Institute of Materia Medica, College of PharmacyArmy Medical University (Third Military Medical University)ChongqingChina
| | - Xuqiang Nie
- Institute of Materia Medica, College of PharmacyArmy Medical University (Third Military Medical University)ChongqingChina
| | - Jun Yan
- Center of Hepatobiliary Pancreatic DiseaseBeijing Tsinghua Changgung HospitalBeijingChina
| | - Rixing Zhan
- Institute of Burn Research, Southwest HospitalArmy Medical University (Third Military Medical University)ChongqingChina
| | - Xiaohui Li
- Institute of Materia Medica, College of PharmacyArmy Medical University (Third Military Medical University)ChongqingChina
| | - Youcai Deng
- Institute of Materia Medica, College of PharmacyArmy Medical University (Third Military Medical University)ChongqingChina
| | - Bingbo Chen
- Laboratory Animal CenterArmy Medical University (Third Military Medical University)ChongqingChina
| | - Yue Cai
- Department of Cardiology, Xijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
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Bongrani A, Mellouk N, Rame C, Cornuau M, Guérif F, Froment P, Dupont J. Ovarian Expression of Adipokines in Polycystic Ovary Syndrome: A Role for Chemerin, Omentin, and Apelin in Follicular Growth Arrest and Ovulatory Dysfunction? Int J Mol Sci 2019; 20:ijms20153778. [PMID: 31382403 PMCID: PMC6695651 DOI: 10.3390/ijms20153778] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 07/29/2019] [Accepted: 07/31/2019] [Indexed: 12/22/2022] Open
Abstract
Adipokines are a potential link between reproduction and energy metabolism and could partly explain some infertilities related to some pathophysiology, such as polycystic ovary syndrome (PCOS). However, adipokines were predominantly assessed in blood samples, while very little is known concerning their variations in follicular fluid (FF) and ovarian granulosa cells (GCs) of PCOS women. Thus, the objectives of our study were to investigate adiponectin, chemerin, resistin, visfatin, omentin, and apelin ovarian expression in PCOS women in comparison with controls and women with only a polycystic ovary morphology. In total, 78 women undergoing an in vitro fertilization procedure were divided into three groups: 23 PCOS women, 28 women presenting only ≥12 follicles per ovary (ECHO group), and 27 control women. Each group almost equally included normal weight and obese women. Follicular fluid (FF) concentration and granulosa cells (GCs) mRNA expression of adipokines and their receptors were assessed by ELISA and RT-qPCR, respectively. Omentin levels in FF and GC were higher in PCOS than in ECHO and control women, while apelin expression was increased in both PCOS and ECHO groups. FF chemerin concentration was predominant in normal-weight PCOS women compared to BMI (Body Mass Index)-matched ECHO and control women, while GC mRNA levels were higher in the obese PCOS group than in the ECHO one. Compared to PCOS, ECHO women had increased FF adiponectin concentrations and lower plasma AMH levels. The FF concentration of all adipokines was higher in obese subjects except for adiponectin, predominant in normal-weight women. In conclusion, women with PCOS expressed higher GC chemerin and omentin, whereas the ECHO group presented higher levels of FF adiponectin and apelin and lower plasma AMH and LH concentrations. Chemerin, omentin, and apelin expression was differently regulated in women with PCOS, suggesting their possible role in follicular growth arrest and ovulatory dysfunction characterizing PCOS pathogenesis.
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Affiliation(s)
- Alice Bongrani
- Institut National de la Recherche Agronomique Unité Mixte de Recherche Physiology Department, Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Centre National de la Recherche Scientifique, Life Science Department Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l'équitation F-37380 Nouzilly, France
| | - Namya Mellouk
- Institut National de la Recherche Agronomique Unité Mixte de Recherche Physiology Department, Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Centre National de la Recherche Scientifique, Life Science Department Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l'équitation F-37380 Nouzilly, France
| | - Christelle Rame
- Institut National de la Recherche Agronomique Unité Mixte de Recherche Physiology Department, Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Centre National de la Recherche Scientifique, Life Science Department Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l'équitation F-37380 Nouzilly, France
| | - Marion Cornuau
- Service de Médecine et Biologie de la Reproduction, CHRU Bretonneau, 2, boulevard Tonnellé, F-37044 Tours, France
| | - Fabrice Guérif
- Institut National de la Recherche Agronomique Unité Mixte de Recherche Physiology Department, Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Centre National de la Recherche Scientifique, Life Science Department Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l'équitation F-37380 Nouzilly, France
- Service de Médecine et Biologie de la Reproduction, CHRU Bretonneau, 2, boulevard Tonnellé, F-37044 Tours, France
| | - Pascal Froment
- Institut National de la Recherche Agronomique Unité Mixte de Recherche Physiology Department, Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Centre National de la Recherche Scientifique, Life Science Department Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours, F-37041 Tours, France
- Institut Français du Cheval et de l'équitation F-37380 Nouzilly, France
| | - Joëlle Dupont
- Institut National de la Recherche Agronomique Unité Mixte de Recherche Physiology Department, Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Centre National de la Recherche Scientifique, Life Science Department Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Université François Rabelais de Tours, F-37041 Tours, France.
- Institut Français du Cheval et de l'équitation F-37380 Nouzilly, France.
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Yudiati E, Isnansetyo A, Murwantoko, Triyanto, Handayani CR. Alginate from Sargassum siliquosum Simultaneously Stimulates Innate Immunity, Upregulates Immune Genes, and Enhances Resistance of Pacific White Shrimp (Litopenaeus vannamei) Against White Spot Syndrome Virus (WSSV). Mar Biotechnol (NY) 2019; 21:503-514. [PMID: 31111339 DOI: 10.1007/s10126-019-09898-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
Although alginate is known as an immunostimulant in shrimp, the comprehensive and simultaneous study on its activity to resolve the relationship of the hematological parameters, upregulation of immune-related gene expression, and resistance to pathogen has not been found in shrimp. We performed experiments to evaluate the effect and mechanism of alginate from S. siliquosum on Pacific white shrimp immune system. Hematological parameters were examined after oral administration of Na alginate in the shrimp. White spot syndrome virus (WSSV) was injected to the shrimp at 14 days, and its copy number was examined quantitatively (qRT-PCR). Immune-related gene expression was evaluated by qRT-PCR. Alginate increased some hematological immune parameters of shrimp. Before WSSV infection, expression levels of Toll and lectin genes were upregulated. The lectin gene were upregulated post infection, and the Toll gene in all the treatments were downregulated, except the shrimps fed with alginate at 6.0 g kg-1 at 48 h post infection (hpi). The shrimps fed with alginate at 6.0 g kg-1 were the most resistant and gave the least WSSV copy number at 48 hpi. Resistance of shrimps fed the alginate-supplemented diets against WSSV was significantly higher compared to that of the control treatment with 56% and 10% of survival rates, respectively. Oral administration of alginate did not affect the growth and total protein plasma. At 120 h post challenge, alginate treatment at 6.0 g kg-1 exhibited the highest survival rate. It is concluded that oral administration of alginate enhanced the innate immunity by upregulating immune-related gene expression. Consequently, the enhancement of the shrimp innate immunity improves the resistance against WSSV infection.
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Affiliation(s)
- Ervia Yudiati
- Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada, Jl. Flora, Bulaksumur, Yogyakarta, 55281, Indonesia
- Department of Marine Science, Faculty of Fisheries and Marine Sciences, Diponegoro University, Tembalang Campus, Semarang, Central Java, Indonesia
| | - Alim Isnansetyo
- Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada, Jl. Flora, Bulaksumur, Yogyakarta, 55281, Indonesia.
| | - Murwantoko
- Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada, Jl. Flora, Bulaksumur, Yogyakarta, 55281, Indonesia
| | - Triyanto
- Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada, Jl. Flora, Bulaksumur, Yogyakarta, 55281, Indonesia
| | - Christina Retna Handayani
- Brackishwater Aquaculture Development Center, Jl. Cik Lanang, Pemandian Kartini, Jepara, Central Java, Indonesia
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Elkoumi MA, Emam AA, Allah MAN, Sherif AH, Abdelaal NM, Mosabah A, Zakaria MT, Soliman MM, Salah A, Sedky YM, Mashali MH, Elashkar SSA, Hafez SFM, Hashem MIA, Elshreif AM, Youssef M, Fahmy DS, Sallam MM, Nawara AM, Elgohary EA, Ahmed AA, Fahim MS, Fawzi MM, Abdou AM, Morsi SS, Abo-Alella DA, Malek MM, Anany HG, Sobeih AA, Elbasyouni HAA, El-Deeb FM. Association of ficolin-2 gene polymorphisms and susceptibility to systemic lupus erythematosus in Egyptian children and adolescents: a multicenter study. Lupus 2019; 28:995-1002. [PMID: 31184250 DOI: 10.1177/0961203319856089] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Pediatric-onset SLE (pSLE) is a multisystem autoimmune disease. Recently, the ficolin-2 (FCN2) gene has emerged as a potential candidate gene for susceptibility to SLE. OBJECTIVES The objective of this study was to evaluate the association of the FCN2 gene polymorphisms at positions -986 (G/A), -602 (G/A), -4 (A/G) and SNP C/T (rs3124954) located in intron 1, with susceptibility to pSLE in Egyptian children and adolescents. METHODS This was a multicenter study of 280 patients diagnosed with pSLE, and 280 well-matched healthy controls. The FCN2 promoter polymorphisms at -986 G/A (rs3124952), -602 G/A (rs3124953), -4 A/G (rs17514136) and SNP C/T (rs3124954) located in intron 1 were genotyped by polymerase chain reaction, while serum ficolin-2 levels were assessed using enzyme-linked immunosorbent assay. RESULTS The frequencies of the FCN2 GG genotype and G allele at -986 and -602 positions were significantly more represented in patients with pSLE than in controls (p < 0.001). Conversely, the FCN2 AA genotype and A allele at position -4 were more common in patients than in controls (p < 0.001). Moreover, patients carrying the FCN2 GG genotype in -986 position were more likely to develop lupus nephritis (odds ratio: 2.6 (95% confidence interval: 1.4-4.78); p = 0.006). The FCN2 AA genotype at position -4 was also identified as a possible risk factor for lupus nephritis (odds ratio: 3.12 (95% confidence interval: 1.25-7.84); p = 0.024). CONCLUSION The FCN2 promoter polymorphisms may contribute to susceptibility to pSLE in Egyptian children and adolescents. Moreover, the FCN2 GG genotype at position -986 and AA genotype at position -4 were associated with low serum ficolin-2 levels and may constitute risk factors for lupus nephritis in pSLE.
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Affiliation(s)
- M A Elkoumi
- 1 Department of Pediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - A A Emam
- 1 Department of Pediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - M A N Allah
- 1 Department of Pediatrics, Faculty of Medicine, Zagazig University, Egypt
| | | | - N M Abdelaal
- 2 Department of Pediatrics, Faculty of Medicine, Ain-Shams University, Egypt
| | - Aaa Mosabah
- 3 Department of Pediatrics, Faculty of Medicine, Cairo University, Egypt
| | - M T Zakaria
- 3 Department of Pediatrics, Faculty of Medicine, Cairo University, Egypt
| | - M M Soliman
- 3 Department of Pediatrics, Faculty of Medicine, Cairo University, Egypt
| | - A Salah
- 3 Department of Pediatrics, Faculty of Medicine, Cairo University, Egypt
| | - Y M Sedky
- 3 Department of Pediatrics, Faculty of Medicine, Cairo University, Egypt
| | - M H Mashali
- 3 Department of Pediatrics, Faculty of Medicine, Cairo University, Egypt
| | - S S A Elashkar
- 1 Department of Pediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - S F M Hafez
- 1 Department of Pediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - M I A Hashem
- 1 Department of Pediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - A M Elshreif
- 4 Department of Pediatrics, Al Azhar Faculty of Medicine, Cairo, Egypt
| | - Maa Youssef
- 5 Department of Rheumatology, Faculty of Medicine, Zagazig University, Egypt
| | - D S Fahmy
- 5 Department of Rheumatology, Faculty of Medicine, Zagazig University, Egypt
| | - M M Sallam
- 6 Department of Internal Medicine, Faculty of Medicine, Zagazig University, Egypt
| | - A M Nawara
- 6 Department of Internal Medicine, Faculty of Medicine, Zagazig University, Egypt
| | - E A Elgohary
- 6 Department of Internal Medicine, Faculty of Medicine, Zagazig University, Egypt
| | - A A Ahmed
- 7 Department of Anesthesia, Faculty of Medicine, Zagazig University, Egypt
| | - M S Fahim
- 8 Department of Anesthesia, Faculty of Medicine, Ain-Shams University, Egypt
| | - M M Fawzi
- 9 Department of Clinical Pathology, Faculty of Medicine, Zagazig University, Egypt
| | - A M Abdou
- 10 Department of Clinical Pathology, Al Azhar Faculty of Medicine, Cairo, Egypt
| | - S S Morsi
- 11 Department of Microbiology and Immunology, Faculty of Medicine, Zagazig University, Egypt
| | - D A Abo-Alella
- 11 Department of Microbiology and Immunology, Faculty of Medicine, Zagazig University, Egypt
| | - M M Malek
- 11 Department of Microbiology and Immunology, Faculty of Medicine, Zagazig University, Egypt
| | - H G Anany
- 1 Department of Pediatrics, Faculty of Medicine, Zagazig University, Egypt
| | - A A Sobeih
- 3 Department of Pediatrics, Faculty of Medicine, Cairo University, Egypt
| | - H A A Elbasyouni
- 12 Department of Internal Medicine, Faculty of Medicine, Menoufia University, Egypt
| | - F M El-Deeb
- 13 Department of Dermatology, Faculty of Medicine, Zagazig University, Egypt
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114
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Farinholt T, Dinh C, Kuspa A. Social amoebae establish a protective interface with their bacterial associates by lectin agglutination. Sci Adv 2019; 5:eaav4367. [PMID: 31355329 PMCID: PMC6656538 DOI: 10.1126/sciadv.aav4367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 06/20/2019] [Indexed: 05/13/2023]
Abstract
Both animals and amoebae use phagocytosis and DNA-based extracellular traps as anti-bacterial defense mechanisms. Whether, like animals, amoebae also use tissue-level barriers to reduce direct contact with bacteria has remained unclear. We have explored this question in the social amoeba Dictyostelium discoideum, which forms plaques on lawns of bacteria that expand as amoebae divide and bacteria are consumed. We show that CadA, a cell adhesion protein that functions in D. discoideum development, is also a bacterial agglutinin that forms a protective interface at the plaque edge that limits exposure of vegetative amoebae to bacteria. This interface is important for amoebal survival when bacteria-to-amoebae ratios are high, optimizing amoebal feeding behavior, and protecting amoebae from oxidative stress. Lectins also control bacterial access to the gut epithelium of mammals to limit inflammatory processes; thus, this strategy of antibacterial defense is shared across a broad spectrum of eukaryotic taxa.
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Affiliation(s)
- Timothy Farinholt
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Christopher Dinh
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Adam Kuspa
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Corresponding author.
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115
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Wu T, Xiang Y, Liu T, Wang X, Ren X, Ye T, Li G. Oncolytic Vaccinia Virus Expressing Aphrocallistes vastus Lectin as a Cancer Therapeutic Agent. Mar Drugs 2019; 17:md17060363. [PMID: 31248066 PMCID: PMC6628141 DOI: 10.3390/md17060363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/12/2019] [Accepted: 06/17/2019] [Indexed: 12/13/2022] Open
Abstract
Lectins display a variety of biological functions including insecticidal, antimicrobial, as well as antitumor activities. In this report, a gene encoding Aphrocallistes vastus lectin (AVL), a C-type lectin, was inserted into an oncolytic vaccinia virus vector (oncoVV) to form a recombinant virus oncoVV-AVL, which showed significant in vitro antiproliferative activity in a variety of cancer cell lines. Further investigations revealed that oncoVV-AVL replicated faster than oncoVV significantly in cancer cells. Intracellular signaling elements including NF-κB2, NIK, as well as ERK were determined to be altered by oncoVV-AVL. Virus replication upregulated by AVL was completely dependent on ERK activity. Furthermore, in vivo studies showed that oncoVV-AVL elicited significant antitumor effect in colorectal cancer and liver cancer mouse models. Our study might provide insights into a novel way of the utilization of marine lectin AVL in oncolytic viral therapies.
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Affiliation(s)
- Tao Wu
- Zhejiang Sci-Tech University Hangzhou Gongchu Joint Institute of Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yulin Xiang
- Zhejiang Sci-Tech University Hangzhou Gongchu Joint Institute of Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Tingting Liu
- Zhejiang Sci-Tech University Hangzhou Gongchu Joint Institute of Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Xue Wang
- Zhejiang Sci-Tech University Hangzhou Gongchu Joint Institute of Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Xiaoyuan Ren
- Zhejiang Sci-Tech University Hangzhou Gongchu Joint Institute of Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Ting Ye
- Zhejiang Sci-Tech University Hangzhou Gongchu Joint Institute of Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Gongchu Li
- Zhejiang Sci-Tech University Hangzhou Gongchu Joint Institute of Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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116
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Wang W, Gong C, Han Z, Lv X, Liu S, Wang L, Song L. The lectin domain containing proteins with mucosal immunity and digestive functions in oyster Crassostrea gigas. Fish Shellfish Immunol 2019; 89:237-247. [PMID: 30936048 DOI: 10.1016/j.fsi.2019.03.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/19/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
Lectins are carbohydrate-binding proteins with lectin domains, which are extensively studied for their numerous roles in biological recognition. However, the lectin domain containing proteins (LDCPs) chimerized with other non-lectin domains have not received sufficient attention. In the present study, a genome-wide survey of LDCPs in oyster Crassostrea gigas was conducted, and an expansive 640 LDCPs derived from ten lectin domains were identified and functionally explored. In these LDCPs, a total of 282 kinds of domains were predicted, and 90% of the LDCPs contained more than one kind of domain. The lectin domains were frequently fused with non-lectin domains, such as epidermal growth factor domain and peptidase related domains, which supplied LDCPs with more diversity in structures and functions. The C-type lectin domains were the most abundant domains in LDCPs, and they were largely co-existed with non-lectin domains of complement activation-related domains (such as CUB domain and PAN-1 domain) but relative independence with other lectin domains. Furthermore, the C-type lectin domain containing proteins (CTLPs) found to mainly act as pattern immune recognition receptors and were highly expressed in mucosal tissues (digestive gland, male gonad and labial palp) to provide mucosal immune protections. The Concanavalin A-like lectin domains were the second richest domains in LDCPs, and they were mostly constructed into chimeric proteins with epidermal growth factor domain and peptidase related domains. The Concanavalin A-like lectin domain containing proteins (CALPs) were significantly enriched with peptidase activities and mainly expressed in digestive tissues. All the results suggested the mucosal immunity and digestive functions of oyster LDCPs, which provided a fresh idea about the functions of invertebrate lectin family.
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Affiliation(s)
- Weilin Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266200, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Changhao Gong
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Zirong Han
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Xiaojing Lv
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Shujing Liu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266200, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266200, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China.
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Braun DJ, Bachstetter AD, Sudduth TL, Wilcock DM, Watterson DM, Van Eldik LJ. Genetic knockout of myosin light chain kinase (MLCK210) prevents cerebral microhemorrhages and attenuates neuroinflammation in a mouse model of vascular cognitive impairment and dementia. GeroScience 2019; 41:671-679. [PMID: 31104189 PMCID: PMC6885026 DOI: 10.1007/s11357-019-00072-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/25/2019] [Indexed: 12/15/2022] Open
Abstract
The blood-brain barrier (BBB) is critical in maintenance of brain homeostasis, and loss of its functional integrity is a key feature across a broad range of neurological insults. This includes both acute injuries such as traumatic brain injury and stroke, as well as more chronic pathologies associated with aging, such as vascular cognitive impairment and dementia (VCID). A specific form of myosin light chain kinase (MLCK210) is a major regulator of barrier integrity in general, including the BBB. Studies have demonstrated the potential of MLCK210 as a therapeutic target for peripheral disorders involving tissue barrier dysfunction, but less is known about its potential as a target for chronic neurologic disorders. We report here that genetic knockout (KO) of MLCK210 protects against cerebral microhemorrhages and neuroinflammation induced by chronic dietary hyperhomocysteinemia. Overall, the results are consistent with an accumulating body of evidence supporting MLCK210 as a potential therapeutic target for tissue barrier dysfunction and specifically implicate it in BBB dysfunction and neuroinflammation in a model of VCID.
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Affiliation(s)
- David J Braun
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA
| | - Adam D Bachstetter
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA
- Department of Neuroscience, University of Kentucky, Lexington, KY, 40536, USA
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY, 40536, USA
| | - Tiffany L Sudduth
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA
- Department of Physiology, University of Kentucky, Lexington, KY, 40536, USA
| | - Donna M Wilcock
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA
- Department of Physiology, University of Kentucky, Lexington, KY, 40536, USA
| | - D Martin Watterson
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Linda J Van Eldik
- Sanders-Brown Center on Aging, University of Kentucky, 101 Sanders-Brown Bldg., 800 S. Limestone Street, Lexington, KY, 40536, USA.
- Department of Neuroscience, University of Kentucky, Lexington, KY, 40536, USA.
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY, 40536, USA.
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118
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Magistrado-Coxen P, Aqeel Y, Lopez A, Haserick JR, Urbanowicz BR, Costello CE, Samuelson J. The most abundant cyst wall proteins of Acanthamoeba castellanii are lectins that bind cellulose and localize to distinct structures in developing and mature cyst walls. PLoS Negl Trop Dis 2019; 13:e0007352. [PMID: 31095564 PMCID: PMC6541295 DOI: 10.1371/journal.pntd.0007352] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 05/29/2019] [Accepted: 04/01/2019] [Indexed: 12/02/2022] Open
Abstract
Background Acanthamoeba castellanii, which causes keratitis and blindness in under-resourced countries, is an emerging pathogen worldwide, because of its association with contact lens use. The wall makes cysts resistant to sterilizing reagents in lens solutions and to antibiotics applied to the eye. Methodology/Principal findings Transmission electron microscopy and structured illumination microscopy (SIM) showed purified cyst walls of A. castellanii retained an outer ectocyst layer, an inner endocyst layer, and conical ostioles that connect them. Mass spectrometry showed candidate cyst wall proteins were dominated by three families of lectins (named here Jonah, Luke, and Leo), which bound well to cellulose and less well to chitin. An abundant Jonah lectin, which has one choice-of-anchor A (CAA) domain, was made early during encystation and localized to the ectocyst layer of cyst walls. An abundant Luke lectin, which has two carbohydrate-binding modules (CBM49), outlined small, flat ostioles in a single-layered primordial wall and localized to the endocyst layer and ostioles of mature walls. An abundant Leo lectin, which has two unique domains with eight Cys residues each (8-Cys), localized to the endocyst layer and ostioles. The Jonah lectin and glycopolymers, to which it binds, were accessible in the ectocyst layer. In contrast, Luke and Leo lectins and the glycopolymers, to which they bind, were mostly inaccessible in the endocyst layer and ostioles. Conclusions/Significance The most abundant A. castellanii cyst wall proteins are three sets of lectins, which have carbohydrate-binding modules that are conserved (CBM49s of Luke), newly characterized (CAA of Jonah), or unique to Acanthamoebae (8-Cys of Leo). Cyst wall formation is a tightly choreographed event, in which lectins and glycopolymers combine to form a mature wall with a protected endocyst layer. Because of its accessibility in the ectocyst layer, an abundant Jonah lectin is an excellent diagnostic target. A half century ago, investigators identified cellulose in the Acanthamoeba cyst wall, which has two layers and conical ostioles that connect them. Here we showed cyst walls contain three large sets of cellulose-binding lectins, which localize to the ectocyst layer (a Jonah lectin) or to the endocyst layer and ostioles (Luke and Leo lectins). We used the lectins to establish a sequence for cyst wall assembly when trophozoites are starved and encyst. In the first stage, a Jonah lectin and glycopolymers were present in dozens of distinct vesicles. In the second stage, a primordial wall contained small, flat ostioles outlined by a Luke lectin. In the third stage, a Jonah lectin remained in the ectocyst layer, while Luke and Leo lectins moved to the endocyst layer and ostioles. A description of the major events during cyst wall development is a starting point for mechanistic studies of its assembly.
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Affiliation(s)
- Pamela Magistrado-Coxen
- Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, United States of America
| | - Yousuf Aqeel
- Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, United States of America
| | - Angelo Lopez
- Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, United States of America
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - John R. Haserick
- Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, United States of America
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Breeanna R. Urbanowicz
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, United States of America
| | - Catherine E. Costello
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - John Samuelson
- Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, Massachusetts, United States of America
- * E-mail:
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119
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Ghequire MGK, De Mot R. LlpB represents a second subclass of lectin-like bacteriocins. Microb Biotechnol 2019; 12:567-573. [PMID: 30702207 PMCID: PMC6465234 DOI: 10.1111/1751-7915.13373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/14/2019] [Accepted: 01/15/2019] [Indexed: 12/11/2022] Open
Abstract
Bacteriocins are secreted bacterial proteins that selectively kill related strains. Lectin-like bacteriocins are atypical bacteriocins not requiring a cognate immunity factor and have been primarily studied in Pseudomonas. These so-called LlpAs are composed of a tandem of B-lectin domains. One domain interacts with d-rhamnose residues in the common polysaccharide antigen of Pseudomonas lipopolysaccharide (LPS). The other lectin domain is crucial for interference with the outer membrane protein assembly machinery by interacting with surface-exposed loops of its central component BamA. Via genome mining, we identified a second subclass of Pseudomonas lectin-like proteins, termed LlpB, consisting of a single B-lectin domain. We show that these proteins also display bactericidal activity. Among LlpB-resistant transposon mutants of an LlpB-susceptible Pseudomonas strain, a major subset was hit in an acyltransferase gene, predicted to be involved in LPS core modification, hereby suggesting that LlpBs equally attach to LPS for surface anchoring. This indicates that LPS binding and target strain specificity are condensed in a single B-lectin domain. The identification of this second subclass of lectin-like bacteriocins further expands the toolbox of antibacterial warfare deployed by bacteria and holds potential for their integration in biotechnological applications.
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Affiliation(s)
- Maarten G. K. Ghequire
- Centre of Microbial and Plant GeneticsKU LeuvenKasteelpark Arenberg 20 bus 24603001HeverleeBelgium
| | - René De Mot
- Centre of Microbial and Plant GeneticsKU LeuvenKasteelpark Arenberg 20 bus 24603001HeverleeBelgium
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120
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Gorbushin AM. Derivatives of the lectin complement pathway in Lophotrochozoa. Dev Comp Immunol 2019; 94:35-58. [PMID: 30682446 DOI: 10.1016/j.dci.2019.01.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/20/2019] [Accepted: 01/21/2019] [Indexed: 05/16/2023]
Abstract
A plethora of non-overlapping immune molecular mechanisms in metazoans is the most puzzling issue in comparative immunobiology. No valid evolutionary retrospective on these mechanisms has been developed. In this study, we aimed to reveal the origin and evolution of the immune complement-like system in Lophotrochozoa. For this, we analyzed publicly available transcriptomes of prebilaterian and lophotrochozoan species, mapping lineage-specific molecular events on the phylogenetic tree. We found that there were no orthologs of mannose-binding lectin (MBL) and ficolins (FCN) in Lophotrochozoa but C1q-like proteins (C1qL), bearing both a collagen domain and a globular C1q domain, were omnipresent in them. This suggests that among all complement-like activators the C1qL-specific domain architecture was an evolutionarily first. Two novel protostomian MASP-Related Molecules, MReM1 and MReM2, might hypothetically compensate for the loss of a prebilaterian MASP-orthologous gene and act in complex with C1qL and C1qDC as a "proto-activator" of an ancient "proto-complement". We proposed a new model of the complement evolution predicting that numerous lineage-specific complement-like systems should have evolved from a stem "antique" molecular complex. First evolved in the common ancestor of coelomic animals, the "antique" humoral complex consisted of a TEP molecule, the common ancestor of TEP-associated proteases (C2/Bf/Сf/Lf), the common ancestor of MASP-like proteases (MASP/C1r/C1s, MReM1/MReM2) and multimeric recognition proteins (C1q-, MBL- and FCN-homologs). Further evolutionary specialization and expansion of the complex was independent and lineage-specific, examples being the mammalian complement system and the Apogastropoda complement-like complex. The latter includes an impressive array of multimeric recognition proteins, the variable immunoglobulin and lectin domain containing molecules (VIgL), homologous to C1q, MBL, FCN and other lectins. Four novel polymorphic subfamilies of VIgLs were found to be expressed in Apogastropoda: C1q-related proteins (QREP), zona pellucida-related proteins (ZREP), Scavenger Receptor Cys-Rich-related proteins (SREP) and HPA-lectin related proteins (HREP). The transcriptional response of fibrinogen-related proteins of VIgL family (LlFREP), LlQREP and LlSREP to infestation of common periwinkle, Littorina littorea, with digenean parasite Himasthla elongata correlates with that of LlMReM1, supporting the model suggested in this study.
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Affiliation(s)
- Alexander M Gorbushin
- Sechenov Institute of Evolutionary Physiology and Biochemistry (IEPhB RAS), Saint-Petersburg, Russia.
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121
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Jalal PJ, Urbanowicz RA, Horncastle E, Pathak M, Goddard C, Saeed A, Mason CP, Ball JK, Irving WL, McClure CP, King BJ, Tarr AW. Expression of human ficolin-2 in hepatocytes confers resistance to infection by diverse hepatotropic viruses. J Med Microbiol 2019; 68:642-648. [PMID: 30747617 DOI: 10.1099/jmm.0.000935] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The liver-expressed pattern recognition receptors mannose-binding lectin (MBL), ficolin-2 and ficolin-3 contribute to the innate immune response by activating complement. Binding of soluble ficolin-2 to viral pathogens can directly neutralize virus entry. We observed that the human hepatoma cell line HuH7.5, which is routinely used for the study of hepatotropic viruses, is deficient in expression of MBL, ficolin-2 and ficolin-3. We generated a cell line that expressed and secreted ficolin-2. This cell line (HuH7.5 [FCN2]) was more resistant to infection with hepatitis C virus (HCV), ebolavirus and vesicular stomatitis virus, but surprisingly was more susceptible to infection with rabies virus. Cell-to-cell spread of HCV was also inhibited in ficolin-2 expressing cells. This illustrates that ficolin-2 expression in hepatocytes contributes to innate resistance to virus infection, but some viruses might utilize ficolin-2 to facilitate entry.
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Affiliation(s)
- Paywast J Jalal
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
- Biology Department, Faculty of Science, University of Sulaimani, Sulaimani, Iraq
| | - Richard A Urbanowicz
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Emma Horncastle
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Monika Pathak
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Chun Goddard
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Amanj Saeed
- Biology Department, Faculty of Science, University of Sulaimani, Sulaimani, Iraq
| | - Christopher P Mason
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Jonathan K Ball
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK
| | - William L Irving
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK
| | - C Patrick McClure
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK
| | - Barnabas J King
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - Alexander W Tarr
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK
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Ouyang Y, Zhu L, Shi M, Yu S, Jin Y, Wang Z, Ma J, Yang M, Zhang X, Pan X, Ren H, Wang W, Zhang H, Xie J, Chen N. A Rare Genetic Defect of MBL2 Increased the Risk for Progression of IgA Nephropathy. Front Immunol 2019; 10:537. [PMID: 30967869 PMCID: PMC6438956 DOI: 10.3389/fimmu.2019.00537] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 02/27/2019] [Indexed: 12/23/2022] Open
Abstract
The aim of this study was to investigate the association between lectin pathway-related genetic variations and progression in IgA nephropathy. Biopsy-proven IgAN patients with eGFR ≥15 ml/min/1.73 m2 at baseline and a minimum follow-up of 12-months were enrolled. A total of 1,007 patients and 121 healthy controls were enrolled from two Chinese renal centers. The discovery cohort consisted of 606 patients, and the validation cohort consisted of 401 patients. First, promoters, all exons and their boundary regions of MBL2 and FCN2 were sequenced in 50 patients, and then 37 variations were identified. Of these variations, 7 expression-associated variations were selected and genotyped in the whole discovery cohort. We found that rs1800450 in MBL2 and rs7851696 in FCN2 were associated with an increased risk for ESRD as well as serum MBL or L-ficolin levels. However, only rs1800450 was successively validated for its association with ESRD (HR, 15.91; 3.27-77.34; P = 0.001) in the fully adjusted model in the validation cohort. In addition, 2.7% of patients, and 2.5% of healthy controls carried rs1800450-AA. IgAN patients with rs1800450-AA lacked expression of MBL in both serum and renal tissue and had more severe tubulointerstitial damage. Furthermore, a combined effect of rs1800450-AA with a previously reported clinical risk score was observed in which patients with both a high clinical risk score (≥1%) and rs1800450-AA had a strikingly increased 10-years ESRD risk by 37.1-fold (7.17 to 192.13-fold). In summary, IgAN patients carrying MBL2 rs1800450-AA have a high risk for renal function deterioration, probably due to inactivation of the complement MBL pathway.
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Affiliation(s)
- Yan Ouyang
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Zhu
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
| | - Manman Shi
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuwen Yu
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanmeng Jin
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaohui Wang
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Ma
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Meng Yang
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoyan Zhang
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoxia Pan
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Ren
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiming Wang
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Zhang
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
| | - Jingyuan Xie
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Nan Chen
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Osthoff M, Jaeger VK, Heijnen IAFM, Trendelenburg M, Jordan S, Distler O, Walker UA. Role of lectin pathway complement proteins and genetic variants in organ damage and disease severity of systemic sclerosis: a cross-sectional study. Arthritis Res Ther 2019; 21:76. [PMID: 30885245 PMCID: PMC6423822 DOI: 10.1186/s13075-019-1859-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/05/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The role of the complement system in the pathogenesis of systemic sclerosis (SSc) is controversial. This study investigated the role of the lectin pathway of complement as a mediator of ischemia/reperfusion injury in SSc. METHODS This is a prospective observational cross-sectional study of 211 SSc patients and 29 patients with Raynaud's phenomenon in undifferentiated connective tissue disease (UCTD) at risk of developing SSc from two outpatient clinics. Serum levels of lectin pathway proteins (FCN-2, FCN-3, MBL, and MASP-2) and eight MBL2 and FCN2 single-nucleotide polymorphisms (SNP) were analyzed by sandwich-type immunoassays and genotyping and examined for their association with disease manifestations. RESULTS Lectin pathway protein levels and SNPs were similar between SSc and UCTD patients. FCN-2 levels were however higher in SSc patients with present evidence of digital ulcers (mean 1.4 vs. 1.0 μg/mL, p = 0.05), pitting scars (mean 1.3 vs. 1.0 μg/mL, p = 0.01), and puffy fingers (mean 1.2 vs. 1.0 μg/mL, p = 0.04). Similarly, higher FCN-2 levels were observed in SSc patients with Scl-70 autoantibodies (mean 1.5 vs. 1.0 μg/mL, p = 0.001), interstitial lung disease (mean 1.2 vs. 0.9 μg/mL, p = 0.02), and a forced vital capacity (FVC) below 80% (mean 1.4 vs. 1.0 μg/mL, p = 0.02). In line, variant alleles in the FCN-2 SNP at position + 6359 were associated with a significantly reduced FVC and diffusion capacity. Furthermore, patients with SSc renal crisis harbored higher MBL levels (mean 2.7 vs. 1.5 μg/mL, p = 0.04). No other lectin pathway protein levels or polymorphisms were associated with disease manifestations, low complement C3 and/or C4 levels, or inflammatory markers. CONCLUSIONS This study does not support a relevant role for several lectin pathway complement proteins in the pathogenesis of SSc. Higher FCN-2 levels were however associated with Scl-70 autoantibody positivity, interstitial lung involvement, and digital vasculopathy. Elevated MBL levels were associated with renal crisis.
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Affiliation(s)
- Michael Osthoff
- Department of Internal Medicine, University Hospital Basel, 4031 Basel, Switzerland
- Department of Biomedicine, University Basel, 4031 Basel, Switzerland
| | - Veronika K. Jaeger
- Department of Rheumatology, University Hospital Basel, 4031 Basel, Switzerland
| | - Ingmar A. F. M. Heijnen
- Division of Medical Immunology, Laboratory Medicine, University Hospital Basel, 4031 Basel, Switzerland
| | - Marten Trendelenburg
- Department of Internal Medicine, University Hospital Basel, 4031 Basel, Switzerland
- Department of Biomedicine, University Basel, 4031 Basel, Switzerland
| | - Suzana Jordan
- Department of Rheumatology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Oliver Distler
- Department of Rheumatology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Ulrich A. Walker
- Department of Rheumatology, University Hospital Basel, 4031 Basel, Switzerland
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Hasan I, Gerdol M, Fujii Y, Ozeki Y. Functional Characterization of OXYL, A SghC1qDC LacNAc-specific Lectin from The Crinoid Feather Star Anneissia Japonica. Mar Drugs 2019; 17:md17020136. [PMID: 30823584 PMCID: PMC6409975 DOI: 10.3390/md17020136] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/14/2019] [Accepted: 02/18/2019] [Indexed: 02/08/2023] Open
Abstract
We identified a lectin (carbohydrate-binding protein) belonging to the complement 1q(C1q) family in the feather star Anneissia japonica (a crinoid pertaining to the phylum Echinodermata). The combination of Edman degradation and bioinformatics sequence analysis characterized the primary structure of this novel lectin, named OXYL, as a secreted 158 amino acid-long globular head (sgh)C1q domain containing (C1qDC) protein. Comparative genomics analyses revealed that OXYL pertains to a family of intronless genes found with several paralogous copies in different crinoid species. Immunohistochemistry assays identified the tissues surrounding coelomic cavities and the arms as the main sites of production of OXYL. Glycan array confirmed that this lectin could quantitatively bind to type-2 N-acetyllactosamine (LacNAc: Galβ1-4GlcNAc), but not to type-1 LacNAc (Galβ1-3GlcNAc). Although OXYL displayed agglutinating activity towards Pseudomonas aeruginosa, it had no effect on bacterial growth. On the other hand, it showed a significant anti-biofilm activity. We provide evidence that OXYL can adhere to the surface of human cancer cell lines BT-474, MCF-7, and T47D, with no cytotoxic effect. In BT-474 cells, OXYL led to a moderate activation of the p38 kinase in the MAPK signaling pathway, without affecting the activity of caspase-3. Bacterial agglutination, anti-biofilm activity, cell adhesion, and p38 activation were all suppressed by co-presence of LacNAc. This is the first report on a type-2 LacNAc-specific lectin characterized by a C1q structural fold.
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Affiliation(s)
- Imtiaj Hasan
- Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi 6205, Bangladesh.
| | - Marco Gerdol
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy.
| | - Yuki Fujii
- Graduate School of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan.
| | - Yasuhiro Ozeki
- Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
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Ladurantie C, Coustets M, Czaplicki G, Demange P, Mazères S, Dauvillier S, Teissié J, Rols MP, Milon A, Ecochard V, Gross G, Paquereau L. A protein nanocontainer targeting epithelial cancers: rational engineering, biochemical characterization, drug loading and cell delivery. Nanoscale 2019; 11:3248-3260. [PMID: 30706922 DOI: 10.1039/c8nr10249j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The development of drug delivery and imaging tools is a major challenge in human health, in particular in cancer pathologies. This work describes the optimization of a protein nanocontainer, belonging to the lectin protein family, for its use in epithelial cancer diagnosis and treatment. Indeed, it specifically targets a glycosidic marker, the T antigen, which is known to be characteristic of epithelial cancers. Its quaternary structure reveals a large hydrated inner cavity able to transport small therapeutic molecules. Optimization of the nanocontainer by site directed mutagenesis allowed controlling loading and release of confined drugs. Doxorubicin confinement was followed, both theoretically and experimentally, and provided a proof of concept for the use of this nanocontainer as a vectorization system. In OVCAR-3 cells, a human ovarian adenocarcinoma cell line that expresses the T antigen, the drug was observed to be delivered inside late endosomes/lysosomes. These results show that this new type of vectorization and imaging device opens new exciting perspectives in nano-theranostic approaches.
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Affiliation(s)
- Caroline Ladurantie
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, 205 Route de Narbonne, BP64182, 31077 Toulouse, France.
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Bidula S, Sexton DW, Schelenz S. Ficolins and the Recognition of Pathogenic Microorganisms: An Overview of the Innate Immune Response and Contribution of Single Nucleotide Polymorphisms. J Immunol Res 2019; 2019:3205072. [PMID: 30868077 PMCID: PMC6379837 DOI: 10.1155/2019/3205072] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/29/2018] [Accepted: 12/24/2018] [Indexed: 12/19/2022] Open
Abstract
Ficolins are innate pattern recognition receptors (PRR) and play integral roles within the innate immune response to numerous pathogens throughout the circulation, as well as within organs. Pathogens are primarily removed by direct opsonisation following the recognition of cell surface carbohydrates and other immunostimulatory molecules or via the activation of the lectin complement pathway, which results in the deposition of C3b and the recruitment of phagocytes. In recent years, there have been a number of studies implicating ficolins in the recognition and removal of numerous bacterial, viral, fungal, and parasitic pathogens. Moreover, there has been expanding evidence highlighting that mutations within these key immune proteins, or the possession of particular haplotypes, enhance susceptibility to colonization by pathogens and dysfunctional immune responses. This review will therefore encompass previous knowledge on the role of ficolins in the recognition of bacterial and viral pathogens, while acknowledging the recent advances in the immune response to fungal and parasitic infections. Additionally, we will explore the various genetic susceptibility factors that predispose individuals to infection.
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Affiliation(s)
- Stefan Bidula
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Darren W. Sexton
- School of Pharmacy and Biomolecular Science, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK
| | - Silke Schelenz
- Department of Microbiology, Royal Brompton Hospital, Sydney Street, London SW3 6NP, UK
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Lu H, Sathe AA, Xing C, Lehrman MA. The Lec5 glycosylation mutant links homeobox genes with cholesterol and lipid-linked oligosaccharides. Glycobiology 2019; 29:106-109. [PMID: 30388226 PMCID: PMC6330018 DOI: 10.1093/glycob/cwy103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/01/2018] [Indexed: 11/12/2022] Open
Abstract
Discovered 40 years ago, the Lec5 glycosylation mutant cell line has a complex recessive genotype and is characterized by accumulation of lipid-linked oligosaccharide assembly intermediates, reduced conversion of polyprenols to dolichols, and an unusual phenotypic dependence upon cell culture conditions such as temperature, plating density and medium quality. The heritable defect in Lec5 is unknown. Here we demonstrate an unexpected epigenetic basis for Lec5, with a surprising linkage to increased expression of homeobox genes, which in turn is associated with increased transcription of cholesterol biosynthesis genes. These results suggest testable hypotheses for the biochemical abnormalities of the Lec5 mutant.
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Affiliation(s)
- Hua Lu
- Department of Pharmacology, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX, USA
| | - Adwait Amod Sathe
- Eugene McDermott Center for Human Growth & Development, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX, USA
| | - Chao Xing
- Eugene McDermott Center for Human Growth & Development, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX, USA
- Department of Bioinformatics, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX, USA
- Department of Clinical Sciences, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX, USA
| | - Mark A Lehrman
- Department of Pharmacology, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX, USA
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Du J, Zhu H, Cao C, Ma Y. Expression of Macrobrachium rosenbergii lipopolysaccharide- and β-1,3-glucan-binding protein (LGBP) in Saccharomyces cerevisiae and evaluation of its immune function. Fish Shellfish Immunol 2019; 84:341-351. [PMID: 30053533 DOI: 10.1016/j.fsi.2018.07.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 07/18/2018] [Accepted: 07/24/2018] [Indexed: 06/08/2023]
Abstract
Pattern recognition proteins (PRPs) activate the innate immune system in invertebrates, and lipopolysaccharide- and β-1,3-glucan-binding protein (LGBP) is an important PRP with various biological functions. Here, the open reading frame (ORF) of Macrobrachium rosenbergii LGBP (MrLGBP) was cloned into plasmid vector pHAC181, then integrated into downstream of the GAL1 promoter of Saccharomyces cerevisiae strain GAL1-ScRCH1 via homologous recombination, followed by its expression in the yeast eukaryotic system. The resulting recombinant LGBP contained a 3 × HA-tag at its C terminus and had a molecular weight of about 45 kDa, as evaluated by western blot analysis. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were ranged from 0.340 to 0.802 and 1.189-1.810 μM, respectively. The recombinant MrLGBP protein agglutinated almost all tested bacteria except Bacillus thuringiensis and Staphylococcus aureus. These results revealed that this recombinant protein exhibited antimicrobial activity against some Gram-positive and Gram-negative bacteria. M. rosenbergii prawns were fed with the recombinant yeast strain MrLGBP for 1 month and challenged with the most common crustacean pathogen, Vibrio parahaemolyticus. These prawns showed lower mortality and higher enzymatic activity and expression levels of immunity genes than did the control groups. All these results suggest that MrLGBP may play important roles in the innate immunity of crustaceans, and recombinant strain S. cerevisiae MrLGBP may be useful for the development of an effective immune feed additive in the future.
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Affiliation(s)
- Jie Du
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture, Nanjing, China
| | - Huanxi Zhu
- Institute of Animal Sciences, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Chunlei Cao
- The National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi 214122, China
| | - Yan Ma
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture, Nanjing, China.
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129
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Chang YS, Chen JN, Chang KH, Chang YM, Lai YJ, Liu WJ. Cloning and expression of the lectin gene from the mushroom Agrocybe aegerita and the activities of recombinant lectin in the resistance of shrimp white spot syndrome virus infection. Dev Comp Immunol 2019; 90:1-9. [PMID: 30031870 DOI: 10.1016/j.dci.2018.07.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/17/2018] [Accepted: 07/18/2018] [Indexed: 06/08/2023]
Abstract
Lectin is a protein with multiple functions. In this study, the full-length cDNA of the Agrocybe aegerita lectin (AAL) gene was cloned, recombinant AAL (AAL-His) was expressed, and the activities of AAL-His were analyzed. Northern blot analysis showed that the major AAL transcript is approximately 900 bp. Sequence analysis showed that the coding region of AAL is 489 bp with a transcription start site located 39 nucleotides upstream of the translation initiation codon. In an agglutination test, AAL-His agglutinated rabbit erythrocytes at 12.5 μg/ml. AAL-His also showed antiviral activity in protecting shrimp from white spot syndrome virus (WSSV) infection. This anti-WSSV effect might be due to the binding of AAL-His on WSSV virions via the direct interactions with four WSSV structural proteins, VP39B, VP41B, VP53A and VP216. AAL demonstrates the potential for development as an anti-WSSV agent for shrimp culture. It also implies that these four AAL interaction WSSV proteins may play important roles in virus infection.
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Affiliation(s)
- Yun-Shiang Chang
- Department of Molecular Biotechnology, Da-Yeh University, Changhua, Taiwan
| | - Jian-Nan Chen
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Kun-Hung Chang
- Department of Molecular Biotechnology, Da-Yeh University, Changhua, Taiwan
| | - Yi-Ming Chang
- Department of Earth and Life Science, University of Taipei, Taipei, Taiwan
| | - Ying-Jang Lai
- Department of Food Science, National Quemoy University, Kinmen, Taiwan
| | - Wang-Jing Liu
- Department of Earth and Life Science, University of Taipei, Taipei, Taiwan.
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130
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Geno KA, Spencer BL, Bae S, Nahm MH. Ficolin-2 binds to serotype 35B pneumococcus as it does to serotypes 11A and 31, and these serotypes cause more infections in older adults than in children. PLoS One 2018; 13:e0209657. [PMID: 30586458 PMCID: PMC6306229 DOI: 10.1371/journal.pone.0209657] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 12/10/2018] [Indexed: 11/19/2022] Open
Abstract
Among 98 serotypes of Streptococcus pneumoniae, only a small subset regularly causes invasive pneumococcal diseases (IPD). We previously demonstrated that serotype 11A binds to ficolin-2 and has low invasiveness in children. Epidemiologic data suggested, however, that serotype 11A IPD afflicts older adults, possibly indicating reduced ficolin-2-mediated immune protection. Therefore, we studied the epidemiology of ficolin-2-bound serotypes. We obtained IPD case data from the United States Centers for Disease Control and Prevention. We studied three prominent ficolin-2-bound serotypes and their acetyltransferase-deficient variants for ficolin-2 binding and ficolin-2-mediated complement deposition with flow-cytometry. We determined the age distributions of these serotypes from the obtained epidemiologic data. We discovered that the serotype 35B capsule is a novel ficolin-2 ligand due to O-acetylation via WciG. Ficolin-2-mediated complement deposition was observed on serotypes 11A and 35B but not serotype 31 or any O-acetyl transferase deficient derivatives of these serotypes. Serotypes 11A, 35B, and 31 cause more IPD among older adults than children. Studies of the three serotypes provide additional evidence for ficolin-2 providing innate immunity against IPD. The skewed age distribution of the three serotypes suggests that older adults have reduced ficolin-2-mediated immunity and are more susceptible to these serotypes.
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Affiliation(s)
- K. Aaron Geno
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Brady L. Spencer
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Sejong Bae
- Division of Preventive Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Moon H. Nahm
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
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131
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Wei Y, Chhiba KD, Zhang F, Ye X, Wang L, Zhang L, Robida PA, Moreno-Vinasco L, Schnaar RL, Roers A, Hartmann K, Lee CM, Demers D, Zheng T, Bochner BS, Zhu Z. Mast Cell-Specific Expression of Human Siglec-8 in Conditional Knock-in Mice. Int J Mol Sci 2018; 20:ijms20010019. [PMID: 30577572 PMCID: PMC6337227 DOI: 10.3390/ijms20010019] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/04/2018] [Accepted: 12/14/2018] [Indexed: 01/31/2023] Open
Abstract
Sialic acid-binding Ig-like lectin 8 (Siglec-8) is expressed on the surface of human eosinophils, mast cells, and basophils—cells that participate in allergic and other diseases. Ligation of Siglec-8 by specific glycan ligands or antibodies triggers eosinophil death and inhibits mast cell degranulation; consequences that could be leveraged as treatment. However, Siglec-8 is not expressed in murine and most other species, thus limiting preclinical studies in vivo. Based on a ROSA26 knock-in vector, a construct was generated that contains the CAG promoter, a LoxP-floxed-Neo-STOP fragment, and full-length Siglec-8 cDNA. Through homologous recombination, this Siglec-8 construct was targeted into the mouse genome of C57BL/6 embryonic stem (ES) cells, and chimeric mice carrying the ROSA26-Siglec-8 gene were generated. After cross-breeding to mast cell-selective Cre-recombinase transgenic lines (CPA3-Cre, and Mcpt5-Cre), the expression of Siglec-8 in different cell types was determined by RT-PCR and flow cytometry. Peritoneal mast cells (dual FcεRI+ and c-Kit+) showed the strongest levels of surface Siglec-8 expression by multicolor flow cytometry compared to expression levels on tissue-derived mast cells. Siglec-8 was seen on a small percentage of peritoneal basophils, but not other leukocytes from CPA3-Siglec-8 mice. Siglec-8 mRNA and surface protein were also detected on bone marrow-derived mast cells. Transgenic expression of Siglec-8 in mice did not affect endogenous numbers of mast cells when quantified from multiple tissues. Thus, we generated two novel mouse strains, in which human Siglec-8 is selectively expressed on mast cells. These mice may enable the study of Siglec-8 biology in mast cells and its therapeutic targeting in vivo.
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Affiliation(s)
- Yadong Wei
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT 06511, USA.
| | - Krishan D Chhiba
- Department of Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Fengrui Zhang
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT 06511, USA.
| | - Xujun Ye
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT 06511, USA.
| | - Lihui Wang
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT 06511, USA.
| | - Li Zhang
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT 06511, USA.
| | - Piper A Robida
- Department of Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Liliana Moreno-Vinasco
- Department of Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Ronald L Schnaar
- Department of Pharmacology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA.
| | - Axel Roers
- Institute of Immunology, University of Technology Dresden, 01069 Dresden, Germany.
| | - Karin Hartmann
- Department of Dermatology, University of Lübeck, 23538 Lübeck, Germany.
| | - Chang-Min Lee
- Department of Molecular Microbiology and Immunology, Department of Pediatrics, Brown University Alpert Medical School, Providence, RI 02912, USA.
| | - Delia Demers
- Department of Molecular Microbiology and Immunology, Department of Pediatrics, Brown University Alpert Medical School, Providence, RI 02912, USA.
| | - Tao Zheng
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT 06511, USA.
- Department of Molecular Microbiology and Immunology, Department of Pediatrics, Brown University Alpert Medical School, Providence, RI 02912, USA.
| | - Bruce S Bochner
- Department of Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Zhou Zhu
- Section of Allergy and Clinical Immunology, Yale University School of Medicine, New Haven, CT 06511, USA.
- Department of Molecular Microbiology and Immunology, Department of Pediatrics, Brown University Alpert Medical School, Providence, RI 02912, USA.
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Cavada BS, Pinto-Junior VR, Osterne VJS, Nascimento KS. ConA-Like Lectins: High Similarity Proteins as Models to Study Structure/Biological Activities Relationships. Int J Mol Sci 2018; 20:ijms20010030. [PMID: 30577614 PMCID: PMC6337138 DOI: 10.3390/ijms20010030] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/17/2018] [Accepted: 12/19/2018] [Indexed: 01/03/2023] Open
Abstract
Lectins are a widely studied group of proteins capable of specific and reversible binding to carbohydrates. Undoubtedly, the best characterized are those extracted from plants of the Leguminosae family. Inside this group of proteins, those from the Diocleinae subtribe have attracted attention, in particular Concanavalin A (ConA), the best-studied lectin of the group. Diocleinae lectins, also called ConA-like lectins, present a high similarity of sequence and three-dimensional structure and are known to present inflammatory, vasoactive, antibiotic, immunomodulatory and antitumor activities, among others. This high similarity of lectins inside the ConA-like group makes it possible to use them to study structure/biological activity relationships by the variability of both carbohydrate specificity and biological activities results. It is in this context the following review aims to summarize the most recent data on the biochemical and structural properties, as well as biological activities, of ConA-like lectins and the use of these lectins as models to study structure/biological activity relationships.
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Affiliation(s)
- Benildo S Cavada
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza-CE 60440-970, Brazil.
| | - Vanir R Pinto-Junior
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza-CE 60440-970, Brazil.
| | - Vinicius J S Osterne
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza-CE 60440-970, Brazil.
| | - Kyria S Nascimento
- BioMol-Lab, Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza-CE 60440-970, Brazil.
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Catarino SJ, Andrade FA, Boldt ABW, Guilherme L, Messias-Reason IJ. Sickening or Healing the Heart? The Association of Ficolin-1 and Rheumatic Fever. Front Immunol 2018; 9:3009. [PMID: 30619357 PMCID: PMC6305461 DOI: 10.3389/fimmu.2018.03009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 12/05/2018] [Indexed: 12/27/2022] Open
Abstract
Rheumatic fever (RF) and its subsequent progression to rheumatic heart disease (RHD) are chronic inflammatory disorders prevalent in children and adolescents in underdeveloped countries, and a contributing factor for high morbidity and mortality rates worldwide. Their primary cause is oropharynx infection by Streptococcus pyogenes, whose acetylated residues are recognized by ficolin-1. This is the only membrane-bound, as well as soluble activator molecule of the complement lectin pathway (LP). Although LP genetic polymorphisms are associated with RF, FCN1 gene's role remains unknown. To understand this role, we haplotyped five FCN1 promoter polymorphisms by sequence-specific amplification in 193 patients (138 with RHD and 55, RF only) and 193 controls, measuring ficolin-1 serum concentrations in 78 patients and 86 controls, using enzyme-linked immunosorbent assay (ELISA). Patients presented lower ficolin-1 serum levels (p < 0.0001), but did not differ according to cardiac commitment. Control's genotype distribution was in the Hardy-Weinberg equilibrium. Four alleles (rs2989727: c.-1981A, rs10120023: c.-542A, rs10117466: c.-144A, and rs10858293: c.33T), all associated with increased FCN1 gene expression in whole blood or adipose subcutaneous tissue (p = 0.000001), were also associated with increased protection against the disease. They occur within the *3C2 haplotype, associated with an increased protection against RF (OR = 0.41, p < 0.0001) and with higher ficolin-1 levels in patient serum (p = 0.03). In addition, major alleles of these same polymorphisms comprehend the most primitive *1 haplotype, associated with increased susceptibility to RF (OR = 1.76, p < 0.0001). Nevertheless, instead of having a clear-cut protective role, the minor c.-1981A and c.-144A alleles were also associated with additive susceptibility to valvar stenosis and mitral insufficiency (OR = 3.75, p = 0.009 and OR = 3.37, p = 0.027, respectively). All associations were independent of age, sex or ethnicity. Thus, minor FCN1 promoter variants may play a protective role against RF, by encouraging bacteria elimination as well as increasing gene expression and protein levels. On the other hand, they may also predispose the patients to RHD symptoms, by probably contributing to chronic inflammation and tissue injury, thus emphasizing the dual importance of ficolin-1 in both conditions.
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Affiliation(s)
- Sandra Jeremias Catarino
- Molecular Immunopathology Laboratory, Department of Medical Pathology, Clinical Hospital, Federal University of Paraná, Curitiba, Brazil
| | - Fabiana Antunes Andrade
- Molecular Immunopathology Laboratory, Department of Medical Pathology, Clinical Hospital, Federal University of Paraná, Curitiba, Brazil
| | - Angelica Beate Winter Boldt
- Molecular Immunopathology Laboratory, Department of Medical Pathology, Clinical Hospital, Federal University of Paraná, Curitiba, Brazil
- Human Molecular Genetics Laboratory, Department of Genetics, Federal University of Paraná, Curitiba, Brazil
| | - Luiza Guilherme
- Heart Institute (InCor), School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Iara Jose Messias-Reason
- Molecular Immunopathology Laboratory, Department of Medical Pathology, Clinical Hospital, Federal University of Paraná, Curitiba, Brazil
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Legrand F, Cao Y, Wechsler JB, Zhu X, Zimmermann N, Rampertaap S, Monsale J, Romito K, Youngblood BA, Brock EC, Makiya MA, Tomasevic N, Bebbington C, Maric I, Metcalfe DD, Bochner BS, Klion AD. Sialic acid-binding immunoglobulin-like lectin (Siglec) 8 in patients with eosinophilic disorders: Receptor expression and targeting using chimeric antibodies. J Allergy Clin Immunol 2018; 143:2227-2237.e10. [PMID: 30543818 DOI: 10.1016/j.jaci.2018.10.066] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 09/19/2018] [Accepted: 10/26/2018] [Indexed: 12/31/2022]
Abstract
BACKGROUND Sialic acid-binding immunoglobulin-like lectin (Siglec) 8 is selectively expressed on eosinophils, mast cells, and basophils and, when engaged on eosinophils, can cause cell death. OBJECTIVE We sought to characterize surface and soluble Siglec-8 (sSiglec-8) levels in normal donors (NDs) and eosinophilic donors (EOs) and assess the efficacy of anti-Siglec-8 antibodies in inducing eosinophil cell death in vitro. METHODS Eosinophil expression of Siglec-8 was assessed by using flow cytometry and quantitative PCR. Serum sSiglec-8 levels were measured by means of ELISA. Induction of eosinophil death by IgG4 (chimeric 2E2 IgG4) and afucosylated IgG1 (chimeric 2E2 IgG1 [c2E2 IgG1]) anti-Siglec-8 antibodies was evaluated in vitro by using flow cytometry and in vivo in humanized mice. RESULTS Siglec-8 was consistently expressed on eosinophils from NDs and EOs and did not correlate with absolute eosinophil count or disease activity. sSiglec-8 levels were measurable in sera from most donors unrelated to absolute eosinophil counts or Siglec-8 surface expression. c2E2 IgG1 and chimeric 2E2 IgG4 were equally effective at inducing cell death (Annexin-V positivity) of purified eosinophils from NDs and EOs after overnight IL-5 priming. In contrast, killing of purified eosinophils without IL-5 was only seen in EOs, and natural killer cell-mediated eosinophil killing was seen only with c2E2 IgG1. Finally, treatment of humanized mice with anti-Siglec antibody led to robust depletion of IL-5-induced eosinophilia in vivo. CONCLUSIONS Siglec-8 is highly expressed on blood eosinophils from EOs and NDs and represents a potential therapeutic target for eosinophilic disorders. Enhanced killing of eosinophils in the presence of IL-5 might lead to increased efficacy in patients with IL-5-driven eosinophilia.
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MESH Headings
- Animals
- Antibodies, Blocking/genetics
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, CD/metabolism
- Antigens, Differentiation, B-Lymphocyte/genetics
- Antigens, Differentiation, B-Lymphocyte/immunology
- Antigens, Differentiation, B-Lymphocyte/metabolism
- Cell Death
- Cells, Cultured
- Cytotoxicity, Immunologic
- Eosinophilia/immunology
- Eosinophilia/therapy
- Eosinophils/immunology
- Humans
- Immunoglobulin G/genetics
- Interleukin-5/metabolism
- Killer Cells, Natural/immunology
- Lectins/genetics
- Lectins/immunology
- Lectins/metabolism
- Leukocyte Count
- Mice
- Mice, SCID
- Molecular Targeted Therapy
- Recombinant Fusion Proteins/genetics
- Transcriptome
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Affiliation(s)
- Fanny Legrand
- Human Eosinophil Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Md.
| | - Yun Cao
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Joshua B Wechsler
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, Ill
| | - Xiang Zhu
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Nives Zimmermann
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Shakuntala Rampertaap
- Department of Laboratory Medicine, Warren Magnusson Clinical Center, National Institutes of Health, Bethesda
| | - Joseph Monsale
- Department of Laboratory Medicine, Warren Magnusson Clinical Center, National Institutes of Health, Bethesda
| | - Kimberly Romito
- Department of Laboratory Medicine, Warren Magnusson Clinical Center, National Institutes of Health, Bethesda
| | | | | | - Michelle A Makiya
- Human Eosinophil Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | | | | | - Irina Maric
- Hematology Section, Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda
| | - Dean D Metcalfe
- Mast Cell Biology Section, Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | - Bruce S Bochner
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Amy D Klion
- Human Eosinophil Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Md.
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135
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Shao Y, Che Z, Xing R, Wang Z, Zhang W, Zhao X, Jin C, Li C. Divergent immune roles of two fucolectin isoforms in Apostichopus japonicus. Dev Comp Immunol 2018; 89:1-6. [PMID: 30076875 DOI: 10.1016/j.dci.2018.07.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 07/30/2018] [Accepted: 07/31/2018] [Indexed: 06/08/2023]
Abstract
The F-type lectin (fucolectin) family represents a new group with innate immunity. In this study, two fucolectin isoforms (designated as AjFTL-1 and AjFTL-2) were identified in sea cucumber (Apostichopus japonicus) through rapid amplification of cDNA ends. Full-length cDNAs of AjFTL-1 and AjFTL-2 measured 2134 and 1286 bp, encoding two secreted proteins comprising 317 and 181 amino acid residues, respectively. The signal peptide, l-fucose binding motif ("HX(26)RXDX(4)R/K") and cation binding sequence motif ("h2DGx") were conserved in AjFTL-1 and AjFTL-2. However, AjFTL-1 contains an additional complement control protein domain. Multiple sequence alignments supported that AjFTL-1 and AjFTL-2 are new members of the F-type lectin family. Tissues distribution analysis indicated that both AjFTL-1 and AjFTL-2 were widely expressed in all tested tissues, featuring differential expression patterns. Vibrio splendidus infection in vivo can significantly upregulate the mRNA transcripts of the two genes, with a larger magnitude observed in AjFTL-1. By contrast, lipopolysaccharide stimulation in vitro can markedly induce the expression level of AjFTL-2 but not that of AjFTL-1. Silencing AjFTL-2 by siRNA can suppress the AjNOS transcript, whereas injection of the recombinant protein of AjFTL-2 can significantly induce AjNOS expression. By contrast, the loss- and gain-of-function of AjFTL-1 caused no effect on the expression of AjNOS. Our present study provides evidence supporting that AjFTL-1 and AjFTL-2 play diverse roles in the innate immune defense of sea cucumbers toward bacterial infection.
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Affiliation(s)
- Yina Shao
- School of Marine Sciences, Ningbo University, Ningbo, PR China
| | - Zhongjie Che
- School of Marine Sciences, Ningbo University, Ningbo, PR China
| | - Ronglian Xing
- College of Life Sciences, Yantai University, Yantai, PR China
| | | | - Weiwei Zhang
- School of Marine Sciences, Ningbo University, Ningbo, PR China
| | - Xuelin Zhao
- School of Marine Sciences, Ningbo University, Ningbo, PR China
| | - Chunhua Jin
- School of Marine Sciences, Ningbo University, Ningbo, PR China
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo, PR China.
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136
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Chen L, Yan J, Shi J, Sun W, Chen Z, Yu J, Qi J, Du Y, Zhang H, Feng L. Zebrafish intelectin 1 (zITLN1) plays a role in the innate immune response. Fish Shellfish Immunol 2018; 83:96-103. [PMID: 30195915 DOI: 10.1016/j.fsi.2018.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 08/15/2018] [Accepted: 09/05/2018] [Indexed: 06/08/2023]
Abstract
Intelectin displays carbohydrate binding capacity and has been demonstrated to agglutinate bacteria, suggesting its role in innate immunity. It has also been linked to many pathogenic conditions in human. After reporting two amphioxus orthologs and the zebrafish intelectin 2 (zITLN2), here we cloned and characterized zebrafish intelectin 1 (zITLN1). Like zITLN2, zITLN1 also contains a conserved fibrinogen-related domain (FReD) and a unique intelectin domain (ITLN-D), expresses in all the tissues tested, with the highest level in intestine, and responds to bacterial challenge in acute phase. We also expressed zITLN1 in E. coli system, and purified recombinant zITLN1 could agglutinate both Gram-positive and Gram-negative bacteria in a calcium dependent manner. Its ability to agglutinate Gram-positive bacteria is stronger than that to Gram-negative bacteria whereas zITLN2 did not show such preference. This is probably due to the fact that recombinant zITLN1 could bind peptidoglycan (PGN) with a higher degree to lipopolysaccharide (LPS). Our results of zITLN1 provided new insight into the evolution and function of the intelectin family.
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Affiliation(s)
- Lei Chen
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, No. 88 East Wenhua Road, Jinan, 250014, PR China; Marine Biotechnology Research Center, Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, Institute of Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, PR China
| | - Jie Yan
- Marine Biotechnology Research Center, Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, Institute of Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, PR China
| | - Jing Shi
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, No. 88 East Wenhua Road, Jinan, 250014, PR China
| | - Wenbo Sun
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China
| | - Zhi Chen
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China
| | - Jiang Yu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China
| | - Jing Qi
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China
| | - Yijun Du
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China
| | - Haiqing Zhang
- Department of Bioengineering, Shandong Polytechnic, No. 23000, East JingShi Road, Jinan, Shandong, 250104, PR China.
| | - Lijun Feng
- Marine Biotechnology Research Center, Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, Institute of Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, PR China.
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137
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Kovalchuk SN, Buinovskaya NS, Likhatskaya GN, Rasskazov VA, Son OM, Tekutyeva LA, Balabanova LA. Mutagenesis Studies and Structure-function Relationships for GalNAc/Gal-Specific Lectin from the Sea Mussel Crenomytilus grayanus. Mar Drugs 2018; 16:md16120471. [PMID: 30486373 PMCID: PMC6316223 DOI: 10.3390/md16120471] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/19/2018] [Accepted: 11/21/2018] [Indexed: 11/30/2022] Open
Abstract
The GalNAc/Gal-specific lectin from the sea mussel Crenomytilus grayanus (CGL) with anticancer activity represents а novel lectin family with β-trefoil fold. Earlier, the crystal structures of CGL complexes with globotriose, galactose and galactosamine, and mutagenesis studies have revealed that the lectin contained three carbohydrate-binding sites. The ability of CGL to recognize globotriose (Gb3) on the surface of breast cancer cells and bind mucin-type glycoproteins, which are often associated with oncogenic transformation, makes this compound to be perspective as a biosensor for cancer diagnostics. In this study, we describe results on in silico analysis of binding mechanisms of CGL to ligands (galactose, globotriose and mucin) and evaluate the individual contribution of the amino acid residues from carbohydrate-binding sites to CGL activity by site-directed mutagenesis. The alanine substitutions of His37, His129, Glu75, Asp127, His85, Asn27 and Asn119 affect the CGL mucin-binding activity, indicating their importance in the manifestation of lectin activity. It has been found that CGL affinity to ligands depends on their structure, which is determined by the number of hydrogen bonds in the CGL-ligand complexes. The obtained results should be helpful for understanding molecular machinery of CGL functioning and designing a synthetic analog of CGL with enhanced carbohydrate-binding properties.
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Affiliation(s)
- Svetlana N. Kovalchuk
- Laboratory of Marine Biochemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Science, 159, Stoletya Vladivostoku str., Vladivostok 690022, Russia; (S.N.K.); (N.S.B.)
| | - Nina S. Buinovskaya
- Laboratory of Marine Biochemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Science, 159, Stoletya Vladivostoku str., Vladivostok 690022, Russia; (S.N.K.); (N.S.B.)
| | - Galina N. Likhatskaya
- Laboratory of Bioassays and Mechanism of Action of Biologically Active Substances, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Science, 159, Stoletya Vladivostoku str., Vladivostok 690022, Russia;
| | - Valery A. Rasskazov
- Laboratory of Marine Biochemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Science, 159, Stoletya Vladivostoku str., Vladivostok 690022, Russia; (S.N.K.); (N.S.B.)
| | - Oksana M. Son
- Innovative Technology Center, School of Economics and Management, Far Eastern Federal University, 8 Sukhanova St., Vladivostok 690090, Russia; (O.M.S.); (L.A.T.)
| | - Liudmila A. Tekutyeva
- Innovative Technology Center, School of Economics and Management, Far Eastern Federal University, 8 Sukhanova St., Vladivostok 690090, Russia; (O.M.S.); (L.A.T.)
| | - Larissa A. Balabanova
- Laboratory of Marine Biochemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Science, 159, Stoletya Vladivostoku str., Vladivostok 690022, Russia; (S.N.K.); (N.S.B.)
- Innovative Technology Center, School of Economics and Management, Far Eastern Federal University, 8 Sukhanova St., Vladivostok 690090, Russia; (O.M.S.); (L.A.T.)
- Correspondence: ; Tel.: +7-432-231-0703
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138
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Fong JJ, Tsai CM, Saha S, Nizet V, Varki A, Bui JD. Siglec-7 engagement by GBS β-protein suppresses pyroptotic cell death of natural killer cells. Proc Natl Acad Sci U S A 2018; 115:10410-10415. [PMID: 30254166 PMCID: PMC6187154 DOI: 10.1073/pnas.1804108115] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Natural killer (NK) cells are innate immune lymphocytes that recognize and destroy abnormal host cells, such as tumor cells or those infected by viral pathogens. To safely accomplish these functions, NK cells display activating receptors that detect stress molecules or viral ligands displayed at the cell surface, balanced by inhibitory receptors that bind to self-molecules. To date, such activating and inhibitory receptors on NK cells are not known to recognize bacterial determinants. Moreover, NK cell responses to direct interactions with extracellular bacteria are poorly explored. In this study, we observed the human neonatal pathogen group B Streptococcus (GBS) can directly engage human NK cells. The interaction was mediated through the B6N segment of streptococcal β-protein, binding to the inhibitory receptor Siglec-7 via its amino-terminal V-set domain. Unlike classical Siglec binding, the interaction is also independent of its sialic acid recognition property. In contrast to WT GBS, mutants lacking β-protein induced efficient pyroptosis of NK cells through the NLRP3 inflammasome, with production and secretion of the proinflammatory cytokine IL-1β and dissemination of the cytotoxic molecule granzyme B. We postulate that GBS evolved β-protein engagement of inhibitory human Siglec-7 to suppress the pyroptotic response of NK cells and thereby block recruitment of a broader innate immune response, i.e., by "silencing the sentinel."
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Affiliation(s)
- Jerry J Fong
- Glycobiology Research and Training Center, School of Medicine, University of California, San Diego, La Jolla, CA 92093
- Department of Cellular and Molecular Medicine, School of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Chih-Ming Tsai
- Glycobiology Research and Training Center, School of Medicine, University of California, San Diego, La Jolla, CA 92093
- Department of Cellular and Molecular Medicine, School of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Sudeshna Saha
- Glycobiology Research and Training Center, School of Medicine, University of California, San Diego, La Jolla, CA 92093
- Department of Cellular and Molecular Medicine, School of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Victor Nizet
- Glycobiology Research and Training Center, School of Medicine, University of California, San Diego, La Jolla, CA 92093
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA 92093
- Skaggs School of Pharmacy and Pharmaceutical Sciences, School of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Ajit Varki
- Glycobiology Research and Training Center, School of Medicine, University of California, San Diego, La Jolla, CA 92093;
- Department of Cellular and Molecular Medicine, School of Medicine, University of California, San Diego, La Jolla, CA 92093
- Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA 92093
| | - Jack D Bui
- Department of Pathology, School of Medicine, University of California, San Diego, La Jolla, CA 92093
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139
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Shende R, Wong SSW, Rapole S, Beau R, Ibrahim-Granet O, Monod M, Gührs KH, Pal JK, Latgé JP, Madan T, Aimanianda V, Sahu A. Aspergillus fumigatus conidial metalloprotease Mep1p cleaves host complement proteins. J Biol Chem 2018; 293:15538-15555. [PMID: 30139746 PMCID: PMC6177592 DOI: 10.1074/jbc.ra117.001476] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 08/02/2018] [Indexed: 12/30/2022] Open
Abstract
Innate immunity in animals including humans encompasses the complement system, which is considered an important host defense mechanism against Aspergillus fumigatus, one of the most ubiquitous opportunistic human fungal pathogens. Previously, it has been shown that the alkaline protease Alp1p secreted from A. fumigatus mycelia degrades the complement components C3, C4, and C5. However, it remains unclear how the fungal spores (i.e. conidia) defend themselves against the activities of the complement system immediately after inhalation into the lung. Here, we show that A. fumigatus conidia contain a metalloprotease Mep1p, which is released upon conidial contact with collagen and inactivates all three complement pathways. In particular, Mep1p efficiently inactivated the major complement components C3, C4, and C5 and their activation products (C3a, C4a, and C5a) as well as the pattern-recognition molecules MBL and ficolin-1, either by directly cleaving them or by cleaving them to a form that is further broken down by other proteases of the complement system. Moreover, incubation of Mep1p with human serum significantly inhibited the complement hemolytic activity and conidial opsonization by C3b and their subsequent phagocytosis by macrophages. Together, these results indicate that Mep1p associated with and released from A. fumigatus conidia likely facilitates early immune evasion by disarming the complement defense in the human host.
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Affiliation(s)
- Rajashri Shende
- From the Complement Biology Laboratory and
- the Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune-411033, India
| | | | - Srikanth Rapole
- Proteomics Laboratory, National Centre for Cell Science, S. P. Pune University Campus, Ganeshkhind, Pune-411007, India
| | | | | | - Michel Monod
- the Service de Dermatologie, Laboratoire de Mycologie, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland
| | - Karl-Heinz Gührs
- the Leibniz Institute on Aging-Fritz Lipmann Institute, Jena-07745, Germany, and
| | - Jayanta Kumar Pal
- the Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Tathawade, Pune-411033, India
| | | | - Taruna Madan
- the ICMR-National Institute for Research in Reproductive Health, Parel, Mumbai-400012, India
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140
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Soguktas H, Yaykasli KO, Turan H, Kaya E, Yaykasli E. Omentin Val/Val genotype increases predisposition to acne vulgaris without changing omentin serum level. Cell Mol Biol (Noisy-le-grand) 2018; 64:81-86. [PMID: 30301508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 10/01/2018] [Accepted: 09/28/2018] [Indexed: 06/08/2023]
Abstract
Acne vulgaris is the most frequent and multifactorial inflammatory skin disorder in all races. Obesity is considered to be a risk factor for acne due to its contribution to inflammation. The involvements of inflammatory (leptin and resistin) and anti-inflammatory (adiponectin) adipokines in the pathogenesis of acne were reported. Omentin resembles adiponectin in terms of having inhibitory effect on tumor necrosis factor-α (TNF-α) induced inflammation, a vital process in the acne formation. This study was designed to investigate the putative involvement of omentin in acne formation. The genotyping was performed by restriction fragment length polymorphism (RFLP) method. Serum omentin protein levels were analyzed by enzyme-linked immunosorbent assay (ELISA). Serum omentin level was not significantly changed between groups. However, the decreased serum omentin level was observed as the mean value of BMI increased. The Asp/Asp, Val/Asp and Val/Val genotypes distributions for control and patient groups (19[17.4%], 22[20.2%], and 3[2.8%] respectively, vs. 31[28.4%], 25[22.9%], and 9[8.3%], respectively) were obtained. The Val/Val (mutant homozygote) genotype was found nearly 1.8 times more in the patient group (p=0.403, OR=1.839 (0.442-7.653)). This is the first time to clarify a linkage between anti-inflammatory omentin and acne vulgaris. Omentin Val109Asp polymorphism affects the overall function of the protein. In conclusion, omentin Val/Val (mutant homozygote) genotype increases predisposition to acne vulgaris by probably disrupting overall protein function of omentin.
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Affiliation(s)
- Hatice Soguktas
- Department of Medical Biology and Genetics, Duzce University Institute of Health Science, Duzce, Turkey
| | | | - Hakan Turan
- Department of Dermatology, Duzce University Medical Faculty, Duzce, Turkey
| | - Ertugrul Kaya
- Department of Pharmacology, Duzce University Medical Faculty, Duzce, Turkey
| | - Emine Yaykasli
- Department of Medical Biology and Genetics, Duzce University Institute of Health Science, Duzce, Turkey
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Qiu Y, Tian S, Gu L, Hildreth M, Zhou R. Identification of surface polysaccharides in akinetes, heterocysts and vegetative cells of Anabaena cylindrica using fluorescein-labeled lectins. Arch Microbiol 2018; 201:17-25. [PMID: 30173343 DOI: 10.1007/s00203-018-1565-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/10/2018] [Accepted: 08/22/2018] [Indexed: 11/26/2022]
Abstract
In response to environmental changes, Anabaena cylindrica differentiate three cell types: vegetative cells for photosynthesis, heterocysts for nitrogen fixation, and akinetes for stress survival. Cell-surface polysaccharides play important roles in cyanobacterial ecophysiology. In this study, specific cell-surface sugars were discovered in heterocysts, akinetes and vegetative cells of A. cylindrica using 20 fluorescein-labeled lectins. Both N-acetylglucosamine-binding lectins WGA and succinylated WGA bound specifically to the vegetative cells. Akinetes bound to three mannose-binding lectins (LCA, PSA, and ConA), and one of the galactose-binding lectins (GSL-I). Heterocyst also bound to ConA. However, the heterocysts in all4388 mutant of Anabaena sp. PCC 7120, in which the putative polysaccharide export protein gene all4388 was disrupted, exhibited diminished binding to ConA. Identification of distinct cell-surface sugar helped us to understand the role of polysaccharide for each cell type. Fluorescence-activated cell sorting may be applicable in isolating each cell type for comparative "omics" studies among the three cell types.
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Affiliation(s)
- Yeyan Qiu
- Department of Biology and Microbiology, South Dakota State University, Brookings, USA
| | - Shengni Tian
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Liping Gu
- Department of Biology and Microbiology, South Dakota State University, Brookings, USA
| | - Michael Hildreth
- Department of Biology and Microbiology, South Dakota State University, Brookings, USA
| | - Ruanbao Zhou
- Department of Biology and Microbiology, South Dakota State University, Brookings, USA.
- BioSNTR, South Dakota State University, Brookings, SD, USA.
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142
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Muslim SN, Al-Kadmy IMS, Auda IG, Mohammed Ali AN, Al-Jubori SS. A Novel Genetic Determination of a Lectin Gene in Iraqi Acinetobacter baumannii Isolates and Use of Purified Lectin as an Antibiofilm Agent. J AOAC Int 2018; 101:1623-1630. [PMID: 29618401 DOI: 10.5740/jaoacint.17-0422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Lectin was initially called hemagglutinin or agglutinin because of its capacity to agglutinate human as well as human erythrocytes. They are a heterogeneous group of proteins or glycoproteins of nonimmune origin. Because of their chemical properties, they have become a useful tool in several fields such as immunology, cell biology, molecular biology, membrane structure, pharmacology, cancer research, clinical chemistry, and genetic engineering. OBJECTIVE The wide applications of lectins users urged the need to isolate lectins from a new strain of bacteria can produce new and high yield of lectin because the current production of lectin from Pseudomonas spp. is very expensive. The goal of this study was to screen the ability of Acinetobacter baumannii isolates to produce lectin and detection of its phenotypic and genotypic profiles and detection of lectin ability to inhibit ofbiofilm formation. METHODS Fifty-one isolates from different sources were collected and detected genetically by using the recA gene. Phenotypic detection of lectin by using semi-quantitative analysis and quantitative analysis in microtiter plate. Genotypic detection of lectin by designed lec gene and used PCR technique. The lectin was extracted by using glass beads and purified by chromatographyic technique followed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis for determination the molecular size of lectin and finally detection the spectrum of biofilm inhibition by the purified lectin toward biofilm producers. RESULTS Of 51 A. baumannii isolates, 17 (33.3%) have been found to produce lectin. Ten of 17 were sequenced, of which 2 were submitted and tested by the gene bank National Center for Biotechnology Information (NCBI), and accession numbers (KX766405.1 and KX766406.1) were obtained. These 17 isolates were phenotypically and genotypically positive for lectin and showed different lec gene expression in semi-quantitative and quantitative analysis. The activities ranged between 4-128 U/mL. Lectin purified by ammonium sulfate precipitation was used to inhibit biofilm formation. We found reduction at three different types of bacteria ranging from 26% for Klebsiella pneumonia, 46.7% for P. stutzeri and 53% for A. baumannii. These results suggested that lectin has a promising application as an antibiofilm agent to combat the growing number of multidrug-resistant pathogen-associated infections. CONCLUSIONS Lectin has been detected recently in A. baumannii, but the genetic property of this lectin has not yet been fully studied. In our study, we determined the presence of the lectin gene (lec gene) in A. baumannii by using PCR technique, and lec PCR products were identified with various source of isolation and sequenced to screening for epidemiology and submitted to the gene bank NCBI under accession number (KX766405.1 and KX766406.1). HIGHLIGHTS A. baumannii has an ability to produce lectin protein; Lec gene was detected in A. baumannii, and the sequence was recorded under accession number KX766405.1 and KX766406.1.; Lectin was extracted by glass beads and purified by chromatographyic technique; Lectin had strong effect against biofilm formation.
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Affiliation(s)
- Sahira Nsayef Muslim
- Mustansiryiah University, College of Science, Department of Biology, Branch of Biotechnology, Baghdad, Iraq POX 10244
| | - Israa M S Al-Kadmy
- Mustansiryiah University, College of Science, Department of Biology, Branch of Biotechnology, Baghdad, Iraq POX 10244
| | - Ibtesam Ghadban Auda
- Mustansiryiah University, College of Science, Department of Biology, Branch of Biotechnology, Baghdad, Iraq POX 10244
| | - Alaa Naseer Mohammed Ali
- Mustansiryiah University, College of Science, Department of Biology, Branch of Biotechnology, Baghdad, Iraq POX 10244
| | - Sawsan Sajid Al-Jubori
- Mustansiryiah University, College of Science, Department of Biology, Branch of Biotechnology, Baghdad, Iraq POX 10244
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143
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Bornhöfft KF, Goldammer T, Rebl A, Galuska SP. Siglecs: A journey through the evolution of sialic acid-binding immunoglobulin-type lectins. Dev Comp Immunol 2018; 86:219-231. [PMID: 29751010 DOI: 10.1016/j.dci.2018.05.008] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/04/2018] [Accepted: 05/04/2018] [Indexed: 05/11/2023]
Abstract
Siglecs (sialic acid-binding immunoglobulin-type lectins) are a family of immune regulatory receptors predominantly found on the cells of the hematopoietic system. A V-set Ig-like domain mediates the recognition of different sialylated glycoconjugates, which can lead to the activation or inhibition of the immune response, depending on the involved Siglecs. Siglecs are categorized into two subgroups: one including all CD33-related Siglecs and the other consisting of Siglec-1 (Sialoadhesin), Siglec-2 (CD22), Siglec-4 (myelin-associated glycoprotein, MAG) and Siglec-15. In contrast to the members of the CD33-related Siglecs, which share ∼50-99% sequence identity, Siglecs of the other subgroup show quite low homology (approximately 25-30% sequence identity). Based on the published sequences and functions of Siglecs, we performed phylogenetic analyses and sequence alignments to reveal the conservation of Siglecs throughout evolution. Therefore, we focused on the presence of Siglecs in different classes of vertebrates (fishes, amphibians, birds, reptiles and mammals), offering a bridge between the presence of different Siglecs and the biological situations of the selected animals.
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Affiliation(s)
- Kim F Bornhöfft
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Tom Goldammer
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - Alexander Rebl
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany.
| | - Sebastian P Galuska
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany.
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Arakawa S, Suzukawa M, Ohshima N, Tashimo H, Asari I, Matsui H, Kobayashi N, Shoji S, Nagase T, Ohta K. Expression of Siglec-8 is regulated by interleukin-5, and serum levels of soluble Siglec-8 may predict responsiveness of severe eosinophilic asthma to mepolizumab. Allergol Int 2018; 67S:S41-S44. [PMID: 29703694 DOI: 10.1016/j.alit.2018.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/11/2018] [Accepted: 03/26/2018] [Indexed: 11/27/2022] Open
MESH Headings
- Aged
- Antibodies, Monoclonal, Humanized/therapeutic use
- Antigens, CD/blood
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Antigens, Differentiation, B-Lymphocyte/blood
- Antigens, Differentiation, B-Lymphocyte/genetics
- Antigens, Differentiation, B-Lymphocyte/metabolism
- Asthma/diagnosis
- Asthma/drug therapy
- Asthma/metabolism
- Biomarkers
- Eosinophilia/pathology
- Female
- Gene Expression
- Humans
- Interleukin-5/blood
- Interleukin-5/metabolism
- Lectins/blood
- Lectins/genetics
- Lectins/metabolism
- Male
- Middle Aged
- Respiratory Function Tests
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Affiliation(s)
- Sayaka Arakawa
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan; Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Maho Suzukawa
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan.
| | - Nobuharu Ohshima
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | - Hiroyuki Tashimo
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | - Isao Asari
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | - Hirotoshi Matsui
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | | | - Shunsuke Shoji
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
| | - Takahide Nagase
- Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Ken Ohta
- National Hospital Organization, Tokyo National Hospital, Tokyo, Japan
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145
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Gao C, Su B, Zhang D, Yang N, Song L, Fu Q, Zhou S, Tan F, Li C. l-rhamnose-binding lectins (RBLs) in turbot (Scophthalmus maximus L.): Characterization and expression profiling in mucosal tissues. Fish Shellfish Immunol 2018; 80:264-273. [PMID: 29886139 DOI: 10.1016/j.fsi.2018.06.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/29/2018] [Accepted: 06/06/2018] [Indexed: 06/08/2023]
Abstract
Rhamnose-binding lectin (RBL) were mostly identified from egg cortex and ovary cells from vertebrates and invertebrates, with the specific binding activities to l-rhamnose or d-galactose. Previously, we found that a RBL gene was dramatically down-regulated (-11.90 fold at 1 h, -48.95 fold at 4 h, -905.94 fold at 12 h) in the intestine of turbot following Vibrio anguillarum challenge using RNA-seq expression analysis. In this regard, we sought here to identify RBLs in turbot, as well as the analysis of genomic structure, phylogenetic relationships, basal tissue distribution and the expression patterns following different bacteria challenge in mucosal tissues. In this study, two RBLs were captured in turbot with two conserved type 5 CRD5s, which were belong to type IIIc RBL. In phylogenetic tree analysis, turbot RBLs were clustered with tilapia, European sea bass and snakehead. In addition, in comparison of genomic architecture of turbot RBLs with the available published RBL genes revealed a high degree of conservation in the exon/intron organization among the teleost species. Moreover, both RBLs were significantly up-regulated in mucosal tissues following V. anguillarum and Streptococcus iniae challenge, indicated their critical roles in turbot mucosal immunity. Further studies are needed to expand functional characterization of detailed mechanisms of RBLs in fish innate immunity.
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Affiliation(s)
- Chengbin Gao
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Baofeng Su
- National and Local Joint Engineering Laboratory of Freshwater Fish Breeding, Heilongjiang Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, 150070, China
| | - Dongdong Zhang
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA
| | - Ning Yang
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Lin Song
- College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao, 266011, China
| | - Qiang Fu
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Shun Zhou
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Fenghua Tan
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Chao Li
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China.
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146
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Abstract
Purpose As only some smokers develop COPD with emphysema, we explored the molecular pathogenesis of early-stage COPD with emphysema using gene expression profiling of human lung tissues. Patients and methods First, 110 subjects who had smoked more than ten pack-years were classified into three groups: COPD with emphysema, COPD without emphysema, and healthy smokers. COPD and emphysema were confirmed by post-bronchodilator forced expiratory volume in 1 second/forced vital capacity <0.7 and by chest computed tomography. Lung tissues obtained surgically from the 110 subjects were processed and used for RNA-Seq analysis. Results Among the 110 subjects, 29 had COPD with emphysema, 21 had COPD without emphysema, and 60 were healthy smokers; their mean post-bronchodilator forced expiratory volume in 1 second values were 78%, 80%, and 94%, respectively. Using RNA-Seq, we evaluated 16,676 genes expressed in lung tissues. Among them, 1,226 genes in the COPD with emphysema group and 434 genes in the COPD without emphysema group were differentially expressed genes compared to the expression in healthy smokers. In the COPD with emphysema group, ACER2 and LMAN2L were markedly increased and decreased, respectively. In the COPD without emphysema group, the CHRM3 gene, previously reported to be associated with COPD, and HDAC10 were markedly increased and decreased, respectively. Conclusion Our study identified differences in gene expression in subjects with COPD according to emphysema status using RNA-Seq transcriptome analysis. These findings may have mechanistic implications in COPD.
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Affiliation(s)
- Ina Jeong
- Department of Internal Medicine, National Medical Center, Seoul, Republic of Korea
| | - Jae-Hyun Lim
- Biomedical Informatics Research Center, Division of Biomedical Informatics, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Dong Kyu Oh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea,
| | - Woo Jin Kim
- Department of Internal Medicine and Environmental Health Center, Kangwon National University Hospital, School of Medicine, Kangwon National University, Chuncheon, Republic of Korea
| | - Yeon-Mok Oh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea,
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147
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Yan J, Chen L, Liu Z, Chen Y, Sun Y, Han J, Feng L. The D5 region of the intelectin domain is a new type of carbohydrate recognition domain in the intelectin gene family. Dev Comp Immunol 2018; 85:150-160. [PMID: 29621532 DOI: 10.1016/j.dci.2018.02.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 02/05/2018] [Accepted: 02/28/2018] [Indexed: 06/08/2023]
Abstract
Intelectin is a recently characterized soluble galactofuranose-binding lectin that exists in species ranging from amphioxus to human. Interestingly, intelectin does not contain a canonical carbohydrate-recognition domain (CRD). Therefore, we designed serial deletions of intelectin in the Chinese amphioxus (Branchiostoma belcheri tsingtauense, AmphiITLN71469) in order to identify functional regions required for carbohydrate binding. Our results revealed that Domain 5 (aa 203-302) was able to bind lipopolysaccarides (LPS) or peptidoglycan (PGN) and agglutinate bacteria as efficiently as the full-length protein. Three dimensional (3D) atomic models of Domain 5 were generated by ab initio based program QUARK and by Iterative Threading Assembly Refinement (I-TASSER) programs, in which four amino acids mediating calcium-binding (G54-G55-G56-E91) were identified by hemagglutination assay. Furthermore, a striking functional conservation of Domain 5 was detected in zebrafish intelectin 1. Taken together, our findings identified for the first time a new CRD domain in intelectin, thereby providing new knowledge leading to a better understanding of pathogen-host interactions.
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Affiliation(s)
- Jie Yan
- Marine Biotechnology Research Center, Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, Institute of Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, China
| | - Lei Chen
- Marine Biotechnology Research Center, Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, Institute of Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, China; Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Zhuang Liu
- Department of Reproductive Medicine, Affiliated Hospital of Jining Medical College Jining, Shandong, China
| | - Yonglin Chen
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Ying Sun
- Department of Anesthesiology, Affiliated Hospital of Jining Medical College, Jining, Shandong, China
| | - Jia Han
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong University, 324 Jingwu Street, Jinan, 250021, China.
| | - Lijun Feng
- Marine Biotechnology Research Center, Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, Institute of Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, China.
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148
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Huang X, Han K, Li T, Wang W, Ren Q. Novel L-type lectin from fresh water prawn, Macrobrachium rosenbergii participates in antibacterial and antiviral immune responses. Fish Shellfish Immunol 2018; 77:304-311. [PMID: 29621634 DOI: 10.1016/j.fsi.2018.03.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/17/2018] [Accepted: 03/31/2018] [Indexed: 06/08/2023]
Abstract
L-type lectins (LTLs) play important roles in the secretory pathway of animals, including selective protein trafficking, sorting, and targeting. They have a leguminous lectin domain and can bind to high-mannose-type oligosaccharides. In this study, a novel LTL, designated as MrVIP36, was identified from Macrobrachium rosenbergii. The full-length cDNA of MrVIP36 was 1687 bp with a 972 bp open reading frame encoding a putative protein of 323 deduced amino acids. The deduced MrVIP36 protein contained an LTL-like domain (LTLD) and a transmembrane domain. Phylogenetic tree analysis indicated that MrVIP36 was a member of invertebrate LTLs. It has a closer evolutionary distance with invertebrate LTLs than vertebrate LTLs. Quantitative real time polymerase chain reaction showed that MrVIP36 is expressed widely in all tested tissues, especially in the hepatopancreas and intestine. MrVIP36 was significantly up-regulated in hemocytes of prawns at different time points after Staphylococcus aureus, Vibrio parahaemolyticus, and White spot syndrome virus (WSSV) infections. The recombinant protein MrLTLD (rMrLTLD) could bind and agglutinate all tested bacteria. Sugar binding assay revealed that rMrLTLD could also bind to the glycoconjugates of the bacterial surface, such as lipopolysaccharide and peptidoglycan. Moreover, rMrLTLD could inhibit the growth activities of microorganisms in vitro and accelerate the bacterial clearance in vivo. rMrLTLD could also inhibit WSSV replication in vivo. Survival rate analysis showed that rMrLTLD could protect prawns against WSSV infection. Taken together, our results suggested that MrVIP36 functioned as a pattern recognition receptor involved in the antibacterial and antiviral immune responses of M. rosenbergii.
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Affiliation(s)
- Xin Huang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology and Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences, Nanjing Normal University, Nanjing, 210046, China
| | - Keke Han
- Jiangsu Key Laboratory for Biodiversity and Biotechnology and Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences, Nanjing Normal University, Nanjing, 210046, China
| | - Tingting Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology and Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences, Nanjing Normal University, Nanjing, 210046, China
| | - Wen Wang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology and Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences, Nanjing Normal University, Nanjing, 210046, China.
| | - Qian Ren
- Jiangsu Key Laboratory for Biodiversity and Biotechnology and Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences, Nanjing Normal University, Nanjing, 210046, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang, 222005, China.
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149
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Sánchez-Salgado JL, Pereyra MA, Agundis C, Vivanco-Rojas O, Rosales C, Pascual C, Alpuche-Osorno JJ, Zenteno E. The effect of the lectin from Cherax quadricarinatus on its granular hemocytes. Fish Shellfish Immunol 2018; 77:131-138. [PMID: 29605503 DOI: 10.1016/j.fsi.2018.03.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/15/2018] [Accepted: 03/28/2018] [Indexed: 06/08/2023]
Abstract
In crustaceans, lectins and hemocytes of the innate immune system provide the first line of defense. Although evidence points to the potential role of lectins in regulating hemocyte activity, the processes underlying the lectin activation have not been evaluated. In the present study, the receptor for CqL, a humoral lectin from Cherax quadricarinatus specific for galactose/sialic acid, was identified in a granular subset of hemocytes. The CqL receptor (CqLR) is a 490-kDa glycoprotein, composed of four identical 120-kDa subunits. As shown by immunohistochemistry, CqL at 7.5 μg/mL as optimal dose, after 2 min, induced, specifically on granular hemocytes, increased phosphorylation of serine (152%), threonine (192%), and tyrosine (242%) as compared with non-treated hemocytes; moreover, CqL induced increased generation of reactive oxygen species (ROS). Specific kinase inhibitors showed inhibition (P < 0.001) of ROS production induced by CqL. These results strongly suggest that CqL actively participated in the generation of ROS through kinases induced by a CqLR in a subset of granular hemocytes of the crayfish C. quadricarinatus. The results provide strong evidence that CqL activates, through specific granular hemocytes, receptors that modulate cellular functions in C. quadricarinatus.
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Affiliation(s)
- José Luis Sánchez-Salgado
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico; Posgrado de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mexico City, Mexico.
| | - Mohamed Alí Pereyra
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Concepción Agundis
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Oscar Vivanco-Rojas
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Carlos Rosales
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Cristina Pascual
- Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias, Universidad Nacional Autónoma de México, Sisal, Yucatán, Mexico
| | - Juan José Alpuche-Osorno
- CONACYT-Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
| | - Edgar Zenteno
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico; Centro de Investigaciones, Facultad de Medicina UNAM-Universidad Autónoma Benito Juárez de Oaxaca, Oaxaca, Mexico
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150
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Wang Y, Xue Z, Yi Q, Wang H, Wang L, Lu G, Liu Y, Qu C, Li Y, Song L. A novel fucolectin from Apostichopus japonicus with broad PAMP recognition pattern. Fish Shellfish Immunol 2018; 77:402-409. [PMID: 29627478 DOI: 10.1016/j.fsi.2018.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 03/27/2018] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
F-type lectin (also known as fucolectin) is a newly identified family of fucose binding lectins with the sequence characters of a fucose binding motif and a unique lectin fold (the "F-type" fold). In the present study, a fucolectin was identified from sea cucumber Apostichopus japonicus (designated AjFL-1). The open reading frame (ORF) of AjFL-1 was of 546 bp, encoding a polypeptide of 181 amino acids with a predicted molecular mass of about 20 kDa. The deduced amino acid sequence of AjFL-1 shared 30%-40% similarity with the fucolectins from other animals. There were a typical F-type lectin domain (FLD) (residues 39-180) and a signal peptide (residues 1-24) in AjFL-1. The mRNA transcript of AjFL-1 could be detected by qRT-PCR in various tissues, such as intestinum, coelomocytes, respiratory tree, tentacle, and body wall, while undetectable in the gonads and longitudinal muscle. The mRNA expression level of AjFL-1 in coelomocytes was significantly up-regulated (47.06-fold to that in control group, p < 0.05) at 12 h after Vibrio splendidus challenge. Immunofluorescence assay showed that AjFL-1 protein was mainly distributed on the membrane, while few in cytoplasm of coelomocytes in sea cucumber. The recombinant AjFL-1 (rAjFL-1) could bind lipopolysaccharide (LPS), peptidoglycan (PGN), mannan (MAN) and fucose (FUC), and exhibited a broader binding activities towards Gram-negative bacterium Escherichia coli, Gram-positive bacterium Micrococcus luteus, as well fungus Pichia pastoris. In addition, rAjFL-1 could strongly promote the agglutination of fungus P. pastoris. These results indicated that AjFL-1 was a novel member of fucose-binding lectin family, which functioned as a pattern recognition receptor with broad spectrum of microbial recognition, and involved in innate immune response of sea cucumber.
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Affiliation(s)
- Ying Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Zhuang Xue
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Qilin Yi
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Hui Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Guangxia Lu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Yu Liu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Chen Qu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Yannan Li
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China.
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