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Abstract
Ym1 is a rodent-specific chitinase-like protein (CLP) lacking catalytic activity, whose cellular origins are mainly macrophages, neutrophils and other cells. Although the detailed function of Ym1 remains poorly understood, Ym1 has been generally recognized as a fundamental feature of alternative activation of macrophages in mice and hence one of the prevalent detecting targets in macrophage phenotype distinguishment. Studies have pointed out that Ym1 may have regulatory effects, which are multifaceted and even contradictory, far more than just a mere marker. Allergic lung inflammation, parasite infection, autoimmune diseases, and central nervous system diseases have been found associations with Ym1 to varying degrees. Thus, insights into Ym1’s role in diseases would help us understand the pathogenesis of different diseases and clarify the genuine roles of CLPs in mammals. This review summarizes the information on Ym1 from the gene to its expression and regulation and focuses on the association between Ym1 and diseases.
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Affiliation(s)
- Qi Kang
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- Department of Clinical Medicine, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Luyao Li
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- Department of Clinical Medicine, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Yucheng Pang
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- Department of Clinical Medicine, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Wenhua Zhu
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- *Correspondence: Wenhua Zhu, ; Liesu Meng,
| | - Liesu Meng
- Institute of Molecular and Translational Medicine, and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Key Laboratory of Environment and Genes Related to Diseases, Xi’an Jiaotong University, Ministry of Education, Xi’an, China
- National Joint Engineering Research Center of Biodiagnostics and Biotherapy, Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Wenhua Zhu, ; Liesu Meng,
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2
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Javanmardi K, Chou CW, Terrace CI, Annapareddy A, Kaoud TS, Guo Q, Lutgens J, Zorkic H, Horton AP, Gardner EC, Nguyen G, Boutz DR, Goike J, Voss WN, Kuo HC, Dalby KN, Gollihar JD, Finkelstein IJ. Rapid characterization of spike variants via mammalian cell surface display. Mol Cell 2021; 81:5099-5111.e8. [PMID: 34919820 PMCID: PMC8675084 DOI: 10.1016/j.molcel.2021.11.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [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: 04/30/2021] [Revised: 09/16/2021] [Accepted: 11/19/2021] [Indexed: 12/21/2022]
Abstract
The SARS-CoV-2 spike protein is a critical component of vaccines and a target for neutralizing monoclonal antibodies (nAbs). Spike is also undergoing immunogenic selection with variants that increase infectivity and partially escape convalescent plasma. Here, we describe Spike Display, a high-throughput platform to rapidly characterize glycosylated spike ectodomains across multiple coronavirus-family proteins. We assayed ∼200 variant SARS-CoV-2 spikes for their expression, ACE2 binding, and recognition by 13 nAbs. An alanine scan of all five N-terminal domain (NTD) loops highlights a public epitope in the N1, N3, and N5 loops recognized by most NTD-binding nAbs. NTD mutations in variants of concern B.1.1.7 (alpha), B.1.351 (beta), B.1.1.28 (gamma), B.1.427/B.1.429 (epsilon), and B.1.617.2 (delta) impact spike expression and escape most NTD-targeting nAbs. Finally, B.1.351 and B.1.1.28 completely escape a potent ACE2 mimic. We anticipate that Spike Display will accelerate antigen design, deep scanning mutagenesis, and antibody epitope mapping for SARS-CoV-2 and other emerging viral threats.
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Affiliation(s)
- Kamyab Javanmardi
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA.
| | - Chia-Wei Chou
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | | | - Ankur Annapareddy
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Tamer S Kaoud
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Qingqing Guo
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Josh Lutgens
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Hayley Zorkic
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Andrew P Horton
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Elizabeth C Gardner
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Giaochau Nguyen
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | | | - Jule Goike
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - William N Voss
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Hung-Che Kuo
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Kevin N Dalby
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Jimmy D Gollihar
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA; CCDC Army Research Laboratory-South, Austin, TX, USA; Center for Molecular and Translational Human Infectious Diseases Research, Department of Pathology and Genomic Medicine, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, USA; Center for Systems and Synthetic Biology, The University of Texas at Austin, Austin, TX, USA
| | - Ilya J Finkelstein
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX 78712, USA; Center for Systems and Synthetic Biology, The University of Texas at Austin, Austin, TX, USA.
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3
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Dasgupta S, Maricic I, Tang J, Wandro S, Weldon K, Carpenter CS, Eckmann L, Rivera-Nieves J, Sandborn W, Knight R, Dorrestein P, Swafford AD, Kumar V. Class Ib MHC-Mediated Immune Interactions Play a Critical Role in Maintaining Mucosal Homeostasis in the Mammalian Large Intestine. Immunohorizons 2021; 5:953-971. [PMID: 34911745 PMCID: PMC10026853 DOI: 10.4049/immunohorizons.2100090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/09/2021] [Indexed: 11/19/2022] Open
Abstract
Lymphocytes within the intestinal epithelial layer (IEL) in mammals have unique composition compared with their counterparts in the lamina propria. Little is known about the role of some of the key colonic IEL subsets, such as TCRαβ+CD8+ T cells, in inflammation. We have recently described liver-enriched innate-like TCRαβ+CD8αα regulatory T cells, partly controlled by the non-classical MHC molecule, Qa-1b, that upon adoptive transfer protect from T cell-induced colitis. In this study, we found that TCRαβ+CD8αα T cells are reduced among the colonic IEL during inflammation, and that their activation with an agonistic peptide leads to significant Qa-1b-dependent protection in an acute model of colitis. Cellular expression of Qa-1b during inflammation and corresponding dependency in peptide-mediated protection suggest that Batf3-dependent CD103+CD11b- type 1 conventional dendritic cells control the protective function of TCRαβ+CD8αα T cells in the colonic epithelium. In the colitis model, expression of the potential barrier-protective gene, Muc2, is enhanced upon administration of a Qa-1b agonistic peptide. Notably, in steady state, the mucin metabolizing Akkermansia muciniphila was found in significantly lower abundance amid a dramatic change in overall microbiome and metabolome, increased IL-6 in explant culture, and enhanced sensitivity to dextran sulfate sodium in Qa-1b deficiency. Finally, in patients with inflammatory bowel disease, we found upregulation of HLA-E, a Qa-1b analog with inflammation and biologic non-response, in silico, suggesting the importance of this regulatory mechanism across species.
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Affiliation(s)
- Suryasarathi Dasgupta
- Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, CA
| | - Igor Maricic
- Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, CA
| | - Jay Tang
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Stephen Wandro
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA
| | - Kelly Weldon
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA
| | - Carolina S Carpenter
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA
| | - Lars Eckmann
- Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, CA
| | - Jesus Rivera-Nieves
- Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, CA
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA
| | - William Sandborn
- Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, CA
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA
| | - Rob Knight
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA
- Department of Computer Science and Engineering, University of California San Diego, La Jolla, CA; and
- Department of Bioengineering, University of California San Diego, La Jolla, CA
| | - Peter Dorrestein
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA
| | - Austin D Swafford
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA
| | - Vipin Kumar
- Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, CA;
- Center for Microbiome Innovation, University of California San Diego, La Jolla, CA
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See K, Kadonosono T, Miyamoto K, Tsubaki T, Ota Y, Katsumi M, Ryo S, Aida K, Minegishi M, Isozaki T, Kuchimaru T, Kizaka-Kondoh S. Antibody-guided design and identification of CD25-binding small antibody mimetics using mammalian cell surface display. Sci Rep 2021; 11:22098. [PMID: 34764369 PMCID: PMC8585965 DOI: 10.1038/s41598-021-01603-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 09/22/2021] [Accepted: 11/01/2021] [Indexed: 11/09/2022] Open
Abstract
Small antibody mimetics that contain high-affinity target-binding peptides can be lower cost alternatives to monoclonal antibodies (mAbs). We have recently developed a method to create small antibody mimetics called FLuctuation-regulated Affinity Proteins (FLAPs), which consist of a small protein scaffold with a structurally immobilized target-binding peptide. In this study, to further develop this method, we established a novel screening system for FLAPs called monoclonal antibody-guided peptide identification and engineering (MAGPIE), in which a mAb guides selection in two manners. First, antibody-guided design allows construction of a peptide library that is relatively small in size, but sufficient to identify high-affinity binders in a single selection round. Second, in antibody-guided screening, the fluorescently labeled mAb is used to select mammalian cells that display FLAP candidates with high affinity for the target using fluorescence-activated cell sorting. We demonstrate the reliability and efficacy of MAGPIE using daclizumab, a mAb against human interleukin-2 receptor alpha chain (CD25). Three FLAPs identified by MAGPIE bound CD25 with dissociation constants of approximately 30 nM as measured by biolayer interferometry without undergoing affinity maturation. MAGPIE can be broadly adapted to any mAb to develop small antibody mimetics.
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Affiliation(s)
- Kyra See
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Tetsuya Kadonosono
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan.
| | - Kotaro Miyamoto
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Takuya Tsubaki
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Yumi Ota
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Marina Katsumi
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Sumoe Ryo
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Kazuki Aida
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Misa Minegishi
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Tatsuhiro Isozaki
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Takahiro Kuchimaru
- Center for Molecular Medicine, Jichi Medical University, Tochigi, 329-0498, Japan
| | - Shinae Kizaka-Kondoh
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
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5
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Zhang L, Cui Z, Li Q, Wang B, Yu Y, Wu J, Nie J, Ding R, Wang H, Zhang Y, Liu S, Chen Z, He Y, Su X, Xu W, Huang W, Wang Y. Ten emerging SARS-CoV-2 spike variants exhibit variable infectivity, animal tropism, and antibody neutralization. Commun Biol 2021; 4:1196. [PMID: 34645933 PMCID: PMC8514557 DOI: 10.1038/s42003-021-02728-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [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: 08/30/2021] [Accepted: 09/22/2021] [Indexed: 11/09/2022] Open
Abstract
Emerging mutations in SARS-CoV-2 cause several waves of COVID-19 pandemic. Here we investigate the infectivity and antigenicity of ten emerging SARS-CoV-2 variants-B.1.1.298, B.1.1.7(Alpha), B.1.351(Beta), P.1(Gamma), P.2(Zeta), B.1.429(Epsilon), B.1.525(Eta), B.1.526-1(Iota), B.1.526-2(Iota), B.1.1.318-and seven corresponding single amino acid mutations in the receptor-binding domain using SARS-CoV-2 pseudovirus. The results indicate that the pseudovirus of most of the SARS-CoV-2 variants (except B.1.1.298) display slightly increased infectivity in human and monkey cell lines, especially B.1.351, B.1.525 and B.1.526 in Calu-3 cells. The K417N/T, N501Y, or E484K-carrying variants exhibit significantly increased abilities to infect mouse ACE2-overexpressing cells. The activities of furin, TMPRSS2, and cathepsin L are increased against most of the variants. RBD amino acid mutations comprising K417T/N, L452R, Y453F, S477N, E484K, and N501Y cause significant immune escape from 11 of 13 monoclonal antibodies. However, the resistance to neutralization by convalescent serum or vaccines elicited serum is mainly caused by the E484K mutation. The convalescent serum from B.1.1.7- and B.1.351-infected patients neutralized the variants themselves better than other SARS-CoV-2 variants. Our study provides insights regarding therapeutic antibodies and vaccines, and highlights the importance of E484K mutation.
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Affiliation(s)
- Li Zhang
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Zhimin Cui
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Qianqian Li
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
- Jiangsu Recbio Technology Co., Ltd., Taizhou, China
| | - Bo Wang
- Beijing Advanced Innovation Center for Genomics (ICG) & Biomedical Pioneering Innovation Center (BIOPIC), Peking University; State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China
| | - Yuanling Yu
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Jiajing Wu
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Jianhui Nie
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Ruxia Ding
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Haixin Wang
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Yue Zhang
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Shuo Liu
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Zhihai Chen
- Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yaqing He
- Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
| | - Xiaodong Su
- Beijing Advanced Innovation Center for Genomics (ICG) & Biomedical Pioneering Innovation Center (BIOPIC), Peking University; State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China
| | - Wenbo Xu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Weijin Huang
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China.
| | - Youchun Wang
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China.
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6
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Kaur M, Chadha P, Kaur S, Kaur A. Aspergillus flavus induced oxidative stress and immunosuppressive activity in Spodoptera litura as well as safety for mammals. BMC Microbiol 2021; 21:180. [PMID: 34126929 PMCID: PMC8204525 DOI: 10.1186/s12866-021-02249-4] [Citation(s) in RCA: 6] [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: 03/10/2021] [Accepted: 06/01/2021] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND In the last few decades, considerable attention has been paid to entomopathogenic fungi as biocontrol agents, however little is known about their mode of action and safety. This study aimed to investigate the toxicity of Aspergillus flavus in insect Spodoptera litura by analyzing the effect of fungal extract on antioxidant and cellular immune defense. In antioxidant defense, the lipid peroxidation (Malondialdehyde content) and antioxidant enzymes activities (Catalase, Ascorbate peroxidase, Superoxide dismutase) were examined. In cellular immune defense, effect of A. flavus extract was analyzed on haemocytes using Scanning Electron Microscopy (SEM). Furthermore, mammalian toxicity was analyzed with respect to DNA damage induced in treated rat relative to control by comet assay using different tissues of rat (blood, liver, and kidney). RESULTS Ethyl acetate extract of A. flavus was administrated to the larvae of S.litura using artificial diet method having concentration 1340.84 μg/ml (LC50 of fungus). The effect was observed using haemolymph of insect larvae for different time intervals (24, 48, 72 and 96). In particular, Malondialdehyde content and antioxidant enzymes activities were found to be significantly (p ≤ 0.05) increased in treated larvae as compared to control. A. flavus ethyl acetate extract also exhibit negative impact on haemocytes having major role in cellular immune defense. Various deformities were observed in different haemocytes like cytoplasmic leakage and surface abnormalities etc. Genotoxicity on rat was assessed using different tissues of rat (blood, liver, and kidney) by comet assay. Non-significant effect of A. flavus extract was found in all the tissues (blood, liver, and kidney). CONCLUSIONS Overall the study provides important information regarding the oxidative stress causing potential and immunosuppressant nature of A. flavus against S. litura and its non toxicity to mammals (rat), mammals (rat), suggesting it an environment friendly pest management agent.
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Affiliation(s)
- Mandeep Kaur
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab India
| | - Pooja Chadha
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab India
| | - Sanehdeep Kaur
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab India
| | - Amarjeet Kaur
- Departments of Microbiology, Guru Nanak Dev University, Amritsar, Punjab India
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7
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Kaźmierczak Z, Majewska J, Miernikiewicz P, Międzybrodzki R, Nowak S, Harhala M, Lecion D, Kęska W, Owczarek B, Ciekot J, Drab M, Kędzierski P, Mazurkiewicz-Kania M, Górski A, Dąbrowska K. Immune Response to Therapeutic Staphylococcal Bacteriophages in Mammals: Kinetics of Induction, Immunogenic Structural Proteins, Natural and Induced Antibodies. Front Immunol 2021; 12:639570. [PMID: 34194425 PMCID: PMC8236893 DOI: 10.3389/fimmu.2021.639570] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 12/09/2020] [Accepted: 05/14/2021] [Indexed: 01/12/2023] Open
Abstract
Bacteriophages are able to affect the human immune system. Phage-specific antibodies are considered as major factors shaping phage pharmacokinetics and bioavailability. So far, general knowledge of phage antigenicity nevertheless remains extremely limited. Here we present comparative studies of immunogenicity in two therapeutic bacteriophages, A3R and 676Z, active against Staphylococcus aureus, routinely applied in patients at the Phage Therapy Unit, Poland. Comparison of the overall ability of whole phages to induce specific antibodies in a murine model revealed typical kinetics of IgM and IgG induction by these two phages. In further studies we identified the location of four phage proteins in the virions, with the focus on the external capsid head (Mcp) or tail sheath (TmpH) or an unidentified precise location (ORF059 and ORF096), and we confirmed their role as structural proteins of these viruses. Next, we compared the immune response elicited by these proteins after phage administration in mice. Similar to that in T4 phage, Mcp was the major element of the capsid that induced specific antibodies. Studies of protein-specific sera revealed that antibodies specific to ORF096 were able to neutralize antibacterial activity of the phages. In humans (population level), none of the studied proteins plays a particular role in the induction of specific antibodies; thus none potentially affects in a particular way the effectiveness of A3R and 676Z. Also in patients subjected to phage therapy, we did not observe increased specific immune responses to the investigated proteins.
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Affiliation(s)
- Zuzanna Kaźmierczak
- Research and Development Center, Regional Specialist Hospital, Wroclaw, Poland
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Joanna Majewska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Paulina Miernikiewicz
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Ryszard Międzybrodzki
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
- Department of Clinical Immunology, Transplantation Institute, Medical University of Warsaw, Warsaw, Poland
| | - Sylwia Nowak
- Laboratory of Microscopic Techniques, University of Wroclaw, Wroclaw, Poland
| | - Marek Harhala
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Dorota Lecion
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Weronika Kęska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Barbara Owczarek
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Jarosław Ciekot
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Marek Drab
- Unit of Nano-Structural Bio-Interactions, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Paweł Kędzierski
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry Wroclaw University of Science and Technology, Wroclaw, Poland
| | | | - Andrzej Górski
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Krystyna Dąbrowska
- Bacteriophage Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
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8
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F. Q. Smith D, Casadevall A. Fungal immunity and pathogenesis in mammals versus the invertebrate model organism Galleria mellonella. Pathog Dis 2021; 79:ftab013. [PMID: 33544836 PMCID: PMC7981337 DOI: 10.1093/femspd/ftab013] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 10/06/2020] [Accepted: 02/03/2021] [Indexed: 02/07/2023] Open
Abstract
In recent decades, Galleria mellonella (Lepidoptera: Pyralidae) have emerged as a model system to explore experimental aspects of fungal pathogenesis. The benefits of the G. mellonella model include being faster, cheaper, higher throughput and easier compared with vertebrate models. Additionally, as invertebrates, their use is subject to fewer ethical and regulatory issues. However, for G. mellonella models to provide meaningful insight into fungal pathogenesis, the G. mellonella-fungal interactions must be comparable to mammalian-fungal interactions. Indeed, as discussed in the review, studies suggest that G. mellonella and mammalian immune systems share many similarities, and fungal virulence factors show conserved functions in both hosts. While the moth model has opened novel research areas, many comparisons are superficial and leave large gaps of knowledge that need to be addressed concerning specific mechanisms underlying G. mellonella-fungal interactions. Closing these gaps in understanding will strengthen G. mellonella as a model for fungal virulence in the upcoming years. In this review, we provide comprehensive comparisons between fungal pathogenesis in mammals and G. mellonella from immunological and virulence perspectives. When information on an antifungal immune component is unknown in G. mellonella, we include findings from other well-studied Lepidoptera. We hope that by outlining this information available in related species, we highlight areas of needed research and provide a framework for understanding G. mellonella immunity and fungal interactions.
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Affiliation(s)
- Daniel F. Q. Smith
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Arturo Casadevall
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
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9
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Ott JA, Ohta Y, Flajnik MF, Criscitiello MF. Lost structural and functional inter-relationships between Ig and TCR loci in mammals revealed in sharks. Immunogenetics 2021; 73:17-33. [PMID: 33449123 PMCID: PMC7909615 DOI: 10.1007/s00251-020-01183-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 09/11/2020] [Accepted: 10/26/2020] [Indexed: 12/19/2022]
Abstract
Immunoglobulins and T cell receptors (TCR) have obvious structural similarities as well as similar immunogenetic diversification and selection mechanisms. Nevertheless, the two receptor systems and the loci that encode them are distinct in humans and classical murine models, and the gene segments comprising each repertoire are mutually exclusive. Additionally, while both B and T cells employ recombination-activating genes (RAG) for primary diversification, immunoglobulins are afforded a supplementary set of activation-induced cytidine deaminase (AID)-mediated diversification tools. As the oldest-emerging vertebrates sharing the same adaptive B and T cell receptor systems as humans, extant cartilaginous fishes allow a potential view of the ancestral immune system. In this review, we discuss breakthroughs we have made in studies of nurse shark (Ginglymostoma cirratum) T cell receptors demonstrating substantial integration of loci and diversification mechanisms in primordial B and T cell repertoires. We survey these findings in this shark model where they were first described, while noting corroborating examples in other vertebrate groups. We also consider other examples where the gnathostome common ancestry of the B and T cell receptor systems have allowed dovetailing of genomic elements and AID-based diversification approaches for the TCR. The cartilaginous fish seem to have retained this T/B cell plasticity to a greater extent than more derived vertebrate groups, but representatives in all vertebrate taxa except bony fish and placental mammals show such plasticity.
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Affiliation(s)
- Jeannine A Ott
- Comparative Immunogenetics Laboratory, Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, 77843, USA
| | - Yuko Ohta
- Department of Microbiology and Immunology, University of Maryland Baltimore School of Medicine, Baltimore, MD, 21201, USA
| | - Martin F Flajnik
- Department of Microbiology and Immunology, University of Maryland Baltimore School of Medicine, Baltimore, MD, 21201, USA
| | - Michael F Criscitiello
- Comparative Immunogenetics Laboratory, Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, 77843, USA.
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M Health Science Center, Texas A&M University, College Station, TX, 77843, USA.
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10
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Kim Y, Stanley D. Eicosanoid Signaling in Insect Immunology: New Genes and Unresolved Issues. Genes (Basel) 2021; 12:genes12020211. [PMID: 33535438 PMCID: PMC7912528 DOI: 10.3390/genes12020211] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 01/07/2021] [Revised: 01/28/2021] [Accepted: 01/28/2021] [Indexed: 12/16/2022] Open
Abstract
This paper is focused on eicosanoid signaling in insect immunology. We begin with eicosanoid biosynthesis through the actions of phospholipase A2, responsible for hydrolyzing the C18 polyunsaturated fatty acid, linoleic acid (18:2n-6), from cellular phospholipids, which is subsequently converted into arachidonic acid (AA; 20:4n-6) via elongases and desaturases. The synthesized AA is then oxygenated into one of three groups of eicosanoids, prostaglandins (PGs), epoxyeicosatrienoic acids (EETs) and lipoxygenase products. We mark the distinction between mammalian cyclooxygenases and insect peroxynectins, both of which convert AA into PGs. One PG, PGI2 (also called prostacyclin), is newly discovered in insects, as a negative regulator of immune reactions and a positive signal in juvenile development. Two new elements of insect PG biology are a PG dehydrogenase and a PG reductase, both of which enact necessary PG catabolism. EETs, which are produced from AA via cytochrome P450s, also act in immune signaling, acting as pro-inflammatory signals. Eicosanoids signal a wide range of cellular immune reactions to infections, invasions and wounding, including nodulation, cell spreading, hemocyte migration and releasing prophenoloxidase from oenocytoids, a class of lepidopteran hemocytes. We briefly review the relatively scant knowledge on insect PG receptors and note PGs also act in gut immunity and in humoral immunity. Detailed new information on PG actions in mosquito immunity against the malarial agent, Plasmodium berghei, has recently emerged and we treat this exciting new work. The new findings on eicosanoid actions in insect immunity have emerged from a very broad range of research at the genetic, cellular and organismal levels, all taking place at the international level.
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Affiliation(s)
- Yonggyun Kim
- Department of Plant Medicals, College of Life Sciences, Andong National University, Andong 36729, Korea
- Correspondence:
| | - David Stanley
- Biological Control of Insects Research Laboratory, USDA/Agricultural Research Service, 1503 South Providence Road, Columbia, MO 65203, USA;
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11
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Samardžija M, Lojkić M, Maćešić N, Valpotić H, Butković I, Šavorić J, Žura Žaja I, Leiner D, Đuričić D, Marković F, Kočila P, Vidas Z, Gerenčer M, Kaštelan A, Milovanović A, Lazarević M, Rukavina D, Valpotić I. Reproductive immunology in viviparous mammals: evolutionary paradox of interactions among immune mechanisms and autologous or allogeneic gametes and semiallogeneic foetuses. Vet Q 2020; 40:353-383. [PMID: 33198593 PMCID: PMC7755402 DOI: 10.1080/01652176.2020.1852336] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 11/24/2022] Open
Abstract
Literally, reproductive immunology was born in bovine on-farm reproduction where seminal experiments intended for developing methods for embryo transfer in cattle were performed. Actually, these experiments led to two of major concepts and fundamental principles of reproductive immunology using the bovine species as a model for biomedical research, namely the concept of acquired immunological tolerance and the paradox of the semiallogeneic bovine foetus whereby such organism can develop within an immunologically competent host. Peter Medawar, a scientist who together with Frank Macfarlande Burnet shared the 1960 Nobel Prize in physiology or medicine for discovery of acquired immunological tolerance, while studying dizygotic cattle twins, thereby giving birth to reproductive immunology. Also, these findings significantly influenced development of organ transplants and showed that using farm animals as models for studying transplantation immunology had general relevance for mammalian biology and health including those of humans. However, the interest for further research of the fascinating maternal immune influences on pregnancy and perinatal outcomes and of the prevention and treatment of immunologically mediated reproductive disorders in viviparous mammals of veterinary relevance by veterinary immunologists and reproductive clinicians have been very scarce regarding the application of nonspecific immunomodulatory agents for prevention and treatment of subfertility and infertility in pigs and cattle, but still broadening knowledge in this area and hold great potential for improving such therapy in the future. The aim of the current overview is to provide up-to-date information and explaining/translating relevant immunology phenomena into veterinary practice for specialists and scientists/clinicians in reproduction of animals.
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Affiliation(s)
- M. Samardžija
- Clinic for Obstetrics and Reproduction of Animals, Veterinary Faculty University of Zagreb, Zagreb, Croatia
| | - M. Lojkić
- Clinic for Obstetrics and Reproduction of Animals, Veterinary Faculty University of Zagreb, Zagreb, Croatia
| | - N. Maćešić
- Clinic for Obstetrics and Reproduction of Animals, Veterinary Faculty University of Zagreb, Zagreb, Croatia
| | - H. Valpotić
- Department for Animal Nutrition and Dietetics, Veterinary Faculty University of Zagreb, Zagreb, Croatia
| | - I. Butković
- Clinic for Obstetrics and Reproduction of Animals, Veterinary Faculty University of Zagreb, Zagreb, Croatia
| | - J. Šavorić
- Clinic for Obstetrics and Reproduction of Animals, Veterinary Faculty University of Zagreb, Zagreb, Croatia
| | - I. Žura Žaja
- Department for Physiology and Radiobiology, Veterinary Faculty University of Zagreb, Zagreb, Croatia
| | - D. Leiner
- Department of Anatomy, Histology and Embriology, Veterinary Faculty University of Zagreb, Zagreb, Croatia
| | | | | | - P. Kočila
- Animal Feed Factory, Čakovec, Croatia
| | - Z. Vidas
- Faculty of Medicine, Department of Urology, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - M. Gerenčer
- Croatian Academy of Sciences and Arts, Croatian Academy of Sciences and Arts, Zagreb, Croatia
| | - A. Kaštelan
- Department of Reproduction, Veterinary Scientific Institute, Novi Sad, Serbia
| | - A. Milovanović
- Department for Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Belgrade, Belgrade, Serbia
| | - M. Lazarević
- Department of Cellular Immunology, Baxter Hyland Immuno, Vienna, Austria
| | - D. Rukavina
- Department of Reproduction, Veterinary Scientific Institute, Novi Sad, Serbia
| | - I. Valpotić
- Department of Biology, Veterinary Faculty University of Zagreb, Zagreb, Croatia
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12
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Brito Junior PDA, Rocha JM, Silva CAD, Oliveira PMV, Correia JE, Cruz LAD, Sevá ADP, Oliveira TVD, Silva AVD, Alvarez MRDV, Albuquerque GR. Survey of anti-Toxoplasma gondii antibodies in wild mammals captured from Atlantic Forest fragments in Bahia, northeastern Brazil. Rev Bras Parasitol Vet 2020; 29:e004720. [PMID: 33111842 DOI: 10.1590/s1984-29612020083] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
The objective of this study was to investigate the frequency of antibodies to Toxoplasma gondii present in wild mammals that were trap captured in forest fragments in the State of Bahia, northeastern Brazil. A total of 368 individuals (246 rodents, 104 marsupials and 18 bats) were captured using live catch traps. Serum samples were tested using the modified agglutination test, with a cut-off point at 1:25 dilution. The total occurrence of antibodies to T. gondii was 10.6% (39/368), being 16.3% (17/104) in marsupials, 8.5% (21/246) in rodents, and 5.5% (1/18) in bats. Antibody titers varied between 25 and 50 for rodents, between 25 and 400 for marsupials, and were 25 for bats. This is the first report on antibodies to T. gondii in certain rodent species (Thaptomys nigrita, Hylaeamys laticeps, and Cerradomys subflavus), marsupial species (Monodelphis americana, Gracilinanus microtarsus, Gracilinanus agilis and Marmosops incanus), and bats of the genus Rhynchonycteris. The presence of antibodies to T. gondii in wild mammals demonstrates the possibility of these animals as sentinels of toxoplasmosis, especially on regions under high anthropogenic effect.
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Affiliation(s)
| | - Josiane Moreira Rocha
- Programa de Pós-graduação em Ciência Animal - PPGCA, Universidade Estadual de Santa Cruz - UESC, Ilhéus, BA, Brasil
| | - Caroline Araújo da Silva
- Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana - UEFS, Feira de Santana, BA, Brasil
| | | | - Joelande Esquivel Correia
- Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana - UEFS, Feira de Santana, BA, Brasil
| | - Luciara Alves da Cruz
- Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana - UEFS, Feira de Santana, BA, Brasil
| | - Anaiá da Paixão Sevá
- Programa de Pós-graduação em Ciência Animal - PPGCA, Universidade Estadual de Santa Cruz - UESC, Ilhéus, BA, Brasil
- Laboratório de Epidemiologia e Bioestatística, Faculdade de Medicina Veterinária e Zootecnia - FMVZ, Universidade de São Paulo - USP, São Paulo, SP, Brasil
| | - Téo Veiga de Oliveira
- Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana - UEFS, Feira de Santana, BA, Brasil
| | - Aristeu Vieira da Silva
- Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana - UEFS, Feira de Santana, BA, Brasil
| | | | - George Rêgo Albuquerque
- Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz - UESC, Ilhéus, BA, Brasil
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13
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Rainard P, Cunha P, Martins RP, Gilbert FB, Germon P, Foucras G. Type 3 immunity: a perspective for the defense of the mammary gland against infections. Vet Res 2020; 51:129. [PMID: 33059767 PMCID: PMC7559147 DOI: 10.1186/s13567-020-00852-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 03/31/2020] [Accepted: 09/22/2020] [Indexed: 12/23/2022] Open
Abstract
Type 3 immunity encompasses innate and adaptive immune responses mediated by cells that produce the signature cytokines IL-17A and IL-17F. This class of effector immunity is particularly adept at controlling infections by pyogenic extracellular bacteria at epithelial barriers. Since mastitis results from infections by bacteria such as streptococci, staphylococci and coliform bacteria that cause neutrophilic inflammation, type 3 immunity can be expected to be mobilized at the mammary gland. In effect, the main defenses of this organ are provided by epithelial cells and neutrophils, which are the main terminal effectors of type 3 immunity. In addition to theoretical grounds, there is observational and experimental evidence that supports a role for type 3 immunity in the mammary gland, such as the production of IL-17A, IL-17F, and IL-22 in milk and mammary tissue during infection, although their respective sources remain to be fully identified. Moreover, mouse mastitis models have shown a positive effect of IL-17A on the course of mastitis. A lot remains to be uncovered before we can safely harness type 3 immunity to reinforce mammary gland defenses through innate immune training or vaccination. However, this is a promising way to find new means of improving mammary gland defenses against infection.
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Affiliation(s)
- Pascal Rainard
- ISP, INRAE, Université de Tours, UMR1282, Tours, Nouzilly, France.
| | - Patricia Cunha
- ISP, INRAE, Université de Tours, UMR1282, Tours, Nouzilly, France
| | | | | | - Pierre Germon
- ISP, INRAE, Université de Tours, UMR1282, Tours, Nouzilly, France
| | - Gilles Foucras
- IHAP, Université de Toulouse, INRAE, ENVT, Toulouse, France
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14
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Bennett AJ, Paskey AC, Ebinger A, Pfaff F, Priemer G, Höper D, Breithaupt A, Heuser E, Ulrich RG, Kuhn JH, Bishop-Lilly KA, Beer M, Goldberg TL. Relatives of rubella virus in diverse mammals. Nature 2020; 586:424-428. [PMID: 33029010 PMCID: PMC7572621 DOI: 10.1038/s41586-020-2812-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [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: 10/12/2019] [Accepted: 07/17/2020] [Indexed: 12/17/2022]
Abstract
Since 1814, when rubella was first described, the origins of the disease and its causative agent, rubella virus (Matonaviridae: Rubivirus), have remained unclear1. Here we describe ruhugu virus and rustrela virus in Africa and Europe, respectively, which are, to our knowledge, the first known relatives of rubella virus. Ruhugu virus, which is the closest relative of rubella virus, was found in apparently healthy cyclops leaf-nosed bats (Hipposideros cyclops) in Uganda. Rustrela virus, which is an outgroup to the clade that comprises rubella and ruhugu viruses, was found in acutely encephalitic placental and marsupial animals at a zoo in Germany and in wild yellow-necked field mice (Apodemus flavicollis) at and near the zoo. Ruhugu and rustrela viruses share an identical genomic architecture with rubella virus2,3. The amino acid sequences of four putative B cell epitopes in the fusion (E1) protein of the rubella, ruhugu and rustrela viruses and two putative T cell epitopes in the capsid protein of the rubella and ruhugu viruses are moderately to highly conserved4-6. Modelling of E1 homotrimers in the post-fusion state predicts that ruhugu and rubella viruses have a similar capacity for fusion with the host-cell membrane5. Together, these findings show that some members of the family Matonaviridae can cross substantial barriers between host species and that rubella virus probably has a zoonotic origin. Our findings raise concerns about future zoonotic transmission of rubella-like viruses, but will facilitate comparative studies and animal models of rubella and congenital rubella syndrome.
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Affiliation(s)
- Andrew J Bennett
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, USA
| | - Adrian C Paskey
- Department of Microbiology and Immunology, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Leidos, Reston, VA, USA
- Genomics and Bioinformatics Department, Biological Defense Research Directorate, Naval Medical Research Center-Frederick, Fort Detrick, Frederick, MD, USA
| | - Arnt Ebinger
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Florian Pfaff
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Grit Priemer
- State Office for Agriculture, Food Safety and Fisheries, Rostock, Germany
| | - Dirk Höper
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Angele Breithaupt
- Department of Experimental Animal Facilities and Biorisk Management, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Elisa Heuser
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
- German Center for Infection Research (DZIF), Hamburg-Lübeck-Borstel-Insel Riems, Greifswald-Insel Riems, Germany
| | - Rainer G Ulrich
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
- German Center for Infection Research (DZIF), Hamburg-Lübeck-Borstel-Insel Riems, Greifswald-Insel Riems, Germany
| | - Jens H Kuhn
- Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD, USA
| | - Kimberly A Bishop-Lilly
- Department of Microbiology and Immunology, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Genomics and Bioinformatics Department, Biological Defense Research Directorate, Naval Medical Research Center-Frederick, Fort Detrick, Frederick, MD, USA
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany.
| | - Tony L Goldberg
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, WI, USA.
- Global Health Institute, University of Wisconsin-Madison, Madison, WI, USA.
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15
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Lin JH, Lo CM, Chuang SH, Chiang CH, Wang SD, Lin TY, Liao JW, Hung DZ. Collocation of avian and mammal antibodies to develop a rapid and sensitive diagnostic tool for Russell's Vipers Snakebite. PLoS Negl Trop Dis 2020; 14:e0008701. [PMID: 32956365 PMCID: PMC7529284 DOI: 10.1371/journal.pntd.0008701] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 04/12/2020] [Revised: 10/01/2020] [Accepted: 08/12/2020] [Indexed: 12/13/2022] Open
Abstract
Russell's vipers (RVs) envenoming is an important public health issue in South-East Asia. Disseminated intravascular coagulopathy, systemic bleeding, hemolysis, and acute renal injury are obvious problems that develop in most cases, and neuromuscular junction blocks are an additional problem caused by western RV snakebite. The complex presentations usually are an obstacle to early diagnosis and antivenom administration. Here, we tried to produce highly specific antibodies in goose yolks for use in a paper-based microfluidic diagnostic kit, immunochromatographic test of viper (ICT-Viper), to distinguish RVs from other vipers and even cobra snakebite in Asia. We used indirect ELISA to monitor specific goose IgY production and western blotting to illustrate the interaction of avian or mammal antibody with venom proteins. The ICT-Viper was tested not only in prepared samples but also in stored patient serum to demonstrate its preliminary efficacy. The results revealed that specific anti-Daboia russelii IgY could be raised in goose eggs effectively without inducing adverse effects. When it was collocated with horse anti-Daboia siamensis antibody, which broadly reacted with most of the venom proteins of both types of Russell's viper, the false cross-reactivity was reduced, and the test showed good performance. The limit of detection was reduced to 10 ng/ml in vitro, and the test showed good detection ability in clinical snake envenoming case samples. The ICT-Viper performed well and could be combined with a cobra venom detection kit (ICT-Cobra) to create a multiple detection strip (ICT-VC), which broadens its applications while maintaining its detection ability for snake envenomation identification. Nonetheless, the use of the ICT-Viper in the South-East Asia region is pending additional laboratory and field investigations and regional collaboration. We believe that the development of this practical diagnostic tool marks the beginning of positive efforts to face the global snakebite issue.
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Affiliation(s)
- Jing-Hua Lin
- Graduate Institute of Veterinary Pathobiology, National Chung Hsing University, Taichung, Taiwan
- Division of Toxicology, China Medical University Hospital, Taichung, Taiwan
| | - Che-Min Lo
- Division of Toxicology, China Medical University Hospital, Taichung, Taiwan
| | - Ssu-Han Chuang
- Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Changhua, Taiwan
| | - Chao-Hung Chiang
- Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Changhua, Taiwan
| | - Sheng-Der Wang
- Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Changhua, Taiwan
| | - Tsung-Yi Lin
- Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Changhua, Taiwan
| | - Jiunn-Wang Liao
- Graduate Institute of Veterinary Pathobiology, National Chung Hsing University, Taichung, Taiwan
| | - Dong-Zong Hung
- Division of Toxicology, China Medical University Hospital, Taichung, Taiwan
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16
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Somasundaram R, Choraria A, Antonysamy M. An approach towards development of monoclonal IgY antibodies against SARS CoV-2 spike protein (S) using phage display method: A review. Int Immunopharmacol 2020; 85:106654. [PMID: 32512271 PMCID: PMC7266779 DOI: 10.1016/j.intimp.2020.106654] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 05/09/2020] [Revised: 05/28/2020] [Accepted: 05/28/2020] [Indexed: 01/08/2023]
Abstract
The present state of diagnostic and therapeutic developmental race for vaccines against the SARS CoV-2 (nCOVID-19) focuses on prevention and control of this global pandemic which also represents a critical challenge to the global health community. Although development of novel vaccines can prevent the SARS CoV-2 infections, it is still impeded by several other factors and therefore novel approaches towards treatment and management of this disease is the urgent need. Passive immunotherapy plays a vital role as a possible alternative to meet this challenge and among various antibody sources, chicken egg yolk antibodies (IgY) can be used as an alternative to mammalian antibodies which have been previously studied against SARS CoV outbreak in China. In this review, we discuss the strategies for the use of chicken egg yolk (IgY) antibodies in the development of rapid diagnosis and immunotherapy against SARS CoV-2. Also, IgY antibodies have previously been used against various respiratory bacterial and viral infections in humans and animals. Compared to mammalian antibodies (IgG), chicken egg yolk antibodies (IgY) have greater binding affinity to specific antigens, ease of extraction and lower production costs, hence possessing remarkable pathogen-neutralizing activity of pathogens in respiratory and lungs. We provide an overall importance for the use of monoclonal chicken egg yolk antibodies (IgY) using phage display method describing their potential passive immunotherapeutic application for the treatment and prevention of SARS CoV-2 infection which is simple, fast and safe way of approach for treating patients effectively.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Viral/immunology
- Antibody Affinity
- Antibody Specificity
- Betacoronavirus/genetics
- Betacoronavirus/immunology
- COVID-19
- COVID-19 Testing
- Cell Surface Display Techniques
- Chickens
- Clinical Laboratory Techniques
- Coronavirus Infections/diagnosis
- Coronavirus Infections/therapy
- Egg Yolk
- Forecasting
- Humans
- Immunization, Passive
- Immunoglobulins/immunology
- Mammals/immunology
- Models, Molecular
- Pandemics
- Pneumonia, Viral/diagnosis
- Pneumonia, Viral/therapy
- RNA, Viral/genetics
- SARS-CoV-2
- Single-Chain Antibodies/immunology
- Species Specificity
- Spike Glycoprotein, Coronavirus/chemistry
- Spike Glycoprotein, Coronavirus/immunology
- Spike Glycoprotein, Coronavirus/metabolism
- COVID-19 Serotherapy
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Affiliation(s)
| | - Ankit Choraria
- Department of Microbiology, PSG College of Arts & Science, Coimbatore, TN, India.
| | - Michael Antonysamy
- Department of Microbiology, PSG College of Arts & Science, Coimbatore, TN, India.
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17
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Koepke L, Winter B, Grenzner A, Regensburger K, Engelhart S, van der Merwe JA, Krebs S, Blum H, Kirchhoff F, Sparrer KMJ. An improved method for high-throughput quantification of autophagy in mammalian cells. Sci Rep 2020; 10:12241. [PMID: 32699244 PMCID: PMC7376206 DOI: 10.1038/s41598-020-68607-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 01/24/2020] [Accepted: 06/25/2020] [Indexed: 12/20/2022] Open
Abstract
Autophagy is a cellular homeostatic pathway with functions ranging from cytoplasmic protein turnover to immune defense. Therapeutic modulation of autophagy has been demonstrated to positively impact the outcome of autophagy-dysregulated diseases such as cancer or microbial infections. However, currently available agents lack specificity, and new candidates for drug development or potential cellular targets need to be identified. Here, we present an improved method to robustly detect changes in autophagy in a high-throughput manner on a single cell level, allowing effective screening. This method quantifies eGFP-LC3B positive vesicles to accurately monitor autophagy. We have significantly streamlined the protocol and optimized it for rapid quantification of large numbers of cells in little time, while retaining accuracy and sensitivity. Z scores up to 0.91 without a loss of sensitivity demonstrate the robustness and aptness of this approach. Three exemplary applications outline the value of our protocols and cell lines: (I) Examining autophagy modulating compounds on four different cell types. (II) Monitoring of autophagy upon infection with e.g. measles or influenza A virus. (III) CRISPR/Cas9 screening for autophagy modulating factors in T cells. In summary, we offer ready-to-use protocols to generate sensitive autophagy reporter cells and quantify autophagy in high-throughput assays.
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Affiliation(s)
- Lennart Koepke
- Institute of Molecular Virology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Benjamin Winter
- Institute of Molecular Virology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Alexander Grenzner
- Institute of Molecular Virology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Kerstin Regensburger
- Institute of Molecular Virology, Ulm University Medical Center, 89081, Ulm, Germany
| | - Susanne Engelhart
- Institute of Molecular Virology, Ulm University Medical Center, 89081, Ulm, Germany
| | | | - Stefan Krebs
- Gene Center and Laboratory for Functional Genome Analysis, Ludwig-Maximilians-University, 81377, Munich, Germany
| | - Helmut Blum
- Gene Center and Laboratory for Functional Genome Analysis, Ludwig-Maximilians-University, 81377, Munich, Germany
| | - Frank Kirchhoff
- Institute of Molecular Virology, Ulm University Medical Center, 89081, Ulm, Germany
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18
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Tidière M, Badruna A, Fouchet D, Gaillard JM, Lemaître JF, Pontier D. Pathogens Shape Sex Differences in Mammalian Aging. Trends Parasitol 2020; 36:668-676. [PMID: 32540194 PMCID: PMC7203054 DOI: 10.1016/j.pt.2020.05.004] [Citation(s) in RCA: 7] [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: 03/17/2020] [Revised: 05/01/2020] [Accepted: 05/01/2020] [Indexed: 11/28/2022]
Abstract
Understanding the origin of sex differences in lifespan and aging patterns remains a salient challenge in both biogerontology and evolutionary biology. Different factors have been studied but the potential influence of pathogens has never been investigated. Sex differences, especially in hormones and resource allocation, generate a differential response to pathogens and thereby shape sex differences in lifespan or aging. We provide an integrative framework linking host pathogenic environment with both sex-specific selections on immune performance and mortality trajectories. We propose future directions to fill existing knowledge gaps about mechanisms that link sex differences, not only to exposition and sensitivity to pathogens, but also to mortality patterns, whilst emphasizing the urgent need to consider the role of sex in medicine. Years of research in biomedical sciences have revealed that sex-specific immune responses to pathogens can be associated with sex-specific consequences on health. These effects partly account for the observed sex gap in lifespan, leading women to be longer-lived than males in human populations. Sexual selection exerted on males and the pathogenic environment may explain, at least partly, the sex-difference in lifespan generally observed across mammalian populations.
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Affiliation(s)
- Morgane Tidière
- Laboratoire de Biométrie et Biologie Evolutive, Université de Lyon, Université Lyon 1, CNRS, UMR5558, F-69622, Villeurbanne, France; LabEx ECOFECT, Université de Lyon, F-69000, Lyon, France.
| | - Adèle Badruna
- Laboratoire de Biométrie et Biologie Evolutive, Université de Lyon, Université Lyon 1, CNRS, UMR5558, F-69622, Villeurbanne, France; LabEx ECOFECT, Université de Lyon, F-69000, Lyon, France
| | - David Fouchet
- Laboratoire de Biométrie et Biologie Evolutive, Université de Lyon, Université Lyon 1, CNRS, UMR5558, F-69622, Villeurbanne, France; LabEx ECOFECT, Université de Lyon, F-69000, Lyon, France
| | - Jean-Michel Gaillard
- Laboratoire de Biométrie et Biologie Evolutive, Université de Lyon, Université Lyon 1, CNRS, UMR5558, F-69622, Villeurbanne, France; LabEx ECOFECT, Université de Lyon, F-69000, Lyon, France
| | - Jean-François Lemaître
- Laboratoire de Biométrie et Biologie Evolutive, Université de Lyon, Université Lyon 1, CNRS, UMR5558, F-69622, Villeurbanne, France; LabEx ECOFECT, Université de Lyon, F-69000, Lyon, France
| | - Dominique Pontier
- Laboratoire de Biométrie et Biologie Evolutive, Université de Lyon, Université Lyon 1, CNRS, UMR5558, F-69622, Villeurbanne, France; LabEx ECOFECT, Université de Lyon, F-69000, Lyon, France
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19
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Antonacci R, Massari S, Linguiti G, Caputi Jambrenghi A, Giannico F, Lefranc MP, Ciccarese S. Evolution of the T-Cell Receptor (TR) Loci in the Adaptive Immune Response: The Tale of the TRG Locus in Mammals. Genes (Basel) 2020; 11:E624. [PMID: 32517024 PMCID: PMC7349638 DOI: 10.3390/genes11060624] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 04/28/2020] [Revised: 05/28/2020] [Accepted: 06/02/2020] [Indexed: 12/16/2022] Open
Abstract
T lymphocytes are the principal actors of vertebrates' cell-mediated immunity. Like B cells, they can recognize an unlimited number of foreign molecules through their antigen-specific heterodimer receptors (TRs), which consist of αβ or γδ chains. The diversity of the TRs is mainly due to the unique organization of the genes encoding the α, β, γ, and δ chains. For each chain, multi-gene families are arranged in a TR locus, and their expression is guaranteed by the somatic recombination process. A great plasticity of the gene organization within the TR loci exists among species. Marked structural differences affect the TR γ (TRG) locus. The recent sequencing of multiple whole genome provides an opportunity to examine the TR gene repertoire in a systematic and consistent fashion. In this review, we report the most recent findings on the genomic organization of TRG loci in mammalian species in order to show differences and similarities. The comparison revealed remarkable diversification of both the genomic organization and gene repertoire across species, but also unexpected evolutionary conservation, which highlights the important role of the T cells in the immune response.
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Affiliation(s)
- Rachele Antonacci
- Department of Biology, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.L.); (S.C.)
| | - Serafina Massari
- Department of Biological and Environmental Science and Technologies, University of Salento, 73100 Lecce, Italy;
| | - Giovanna Linguiti
- Department of Biology, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.L.); (S.C.)
| | - Anna Caputi Jambrenghi
- Department of Agricultural and Environmental Science, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.C.J.); (F.G.)
| | - Francesco Giannico
- Department of Agricultural and Environmental Science, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.C.J.); (F.G.)
| | - Marie-Paule Lefranc
- IMGT, the International ImMunoGeneTics Information System, Laboratoire d’ImmunoGénétique Moléculaire LIGM, Institut de Génétique Humaine IGH, UMR9002 CNRS, Université de Montpellier, CEDEX 5, 34396 Montpellier, France;
| | - Salvatrice Ciccarese
- Department of Biology, University of Bari “Aldo Moro”, 70124 Bari, Italy; (G.L.); (S.C.)
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20
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Harman JL, Loes AN, Warren GD, Heaphy MC, Lampi KJ, Harms MJ. Evolution of multifunctionality through a pleiotropic substitution in the innate immune protein S100A9. eLife 2020; 9:e54100. [PMID: 32255429 PMCID: PMC7213983 DOI: 10.7554/elife.54100] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 12/02/2019] [Accepted: 04/03/2020] [Indexed: 12/16/2022] Open
Abstract
Multifunctional proteins are evolutionary puzzles: how do proteins evolve to satisfy multiple functional constraints? S100A9 is one such multifunctional protein. It potently amplifies inflammation via Toll-like receptor four and is antimicrobial as part of a heterocomplex with S100A8. These two functions are seemingly regulated by proteolysis: S100A9 is readily degraded, while S100A8/S100A9 is resistant. We take an evolutionary biochemical approach to show that S100A9 evolved both functions and lost proteolytic resistance from a weakly proinflammatory, proteolytically resistant amniote ancestor. We identify a historical substitution that has pleiotropic effects on S100A9 proinflammatory activity and proteolytic resistance but has little effect on S100A8/S100A9 antimicrobial activity. We thus propose that mammals evolved S100A8/S100A9 antimicrobial and S100A9 proinflammatory activities concomitantly with a proteolytic 'timer' to selectively regulate S100A9. This highlights how the same mutation can have pleiotropic effects on one functional state of a protein but not another, thus facilitating the evolution of multifunctionality.
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Affiliation(s)
- Joseph L Harman
- Department of Chemistry and Biochemistry, University of OregonEugeneUnited States
- Institute of Molecular Biology, University of OregonEugeneUnited States
| | - Andrea N Loes
- Department of Chemistry and Biochemistry, University of OregonEugeneUnited States
- Institute of Molecular Biology, University of OregonEugeneUnited States
| | - Gus D Warren
- Department of Chemistry and Biochemistry, University of OregonEugeneUnited States
- Institute of Molecular Biology, University of OregonEugeneUnited States
| | - Maureen C Heaphy
- Department of Chemistry and Biochemistry, University of OregonEugeneUnited States
- Institute of Molecular Biology, University of OregonEugeneUnited States
| | | | - Michael J Harms
- Department of Chemistry and Biochemistry, University of OregonEugeneUnited States
- Institute of Molecular Biology, University of OregonEugeneUnited States
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21
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Hilton HG, Rubinstein ND, Janki P, Ireland AT, Bernstein N, Fong NL, Wright KM, Smith M, Finkle D, Martin-McNulty B, Roy M, Imai DM, Jojic V, Buffenstein R. Single-cell transcriptomics of the naked mole-rat reveals unexpected features of mammalian immunity. PLoS Biol 2019; 17:e3000528. [PMID: 31751331 PMCID: PMC6894886 DOI: 10.1371/journal.pbio.3000528] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [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: 08/23/2019] [Revised: 12/05/2019] [Accepted: 11/07/2019] [Indexed: 01/08/2023] Open
Abstract
The immune system comprises a complex network of specialized cells that protects against infection, eliminates cancerous cells, and regulates tissue repair, thus serving a critical role in homeostasis, health span, and life span. The subterranean-dwelling naked mole-rat (NM-R; Heterocephalus glaber) exhibits prolonged life span relative to its body size, is unusually cancer resistant, and manifests few physiological or molecular changes with advancing age. We therefore hypothesized that the immune system of NM-Rs evolved unique features that confer enhanced cancer immunosurveillance and prevent the age-associated decline in homeostasis. Using single-cell RNA-sequencing (scRNA-seq) we mapped the immune system of the NM-R and compared it to that of the short-lived, cancer-prone mouse. In contrast to the mouse, we find that the NM-R immune system is characterized by a high myeloid-to-lymphoid cell ratio that includes a novel, lipopolysaccharide (LPS)-responsive, granulocyte cell subset. Surprisingly, we also find that NM-Rs lack canonical natural killer (NK) cells. Our comparative genomics analyses support this finding, showing that the NM-R genome lacks an expanded gene family that controls NK cell function in several other species. Furthermore, we reconstructed the evolutionary history that likely led to this genomic state. The NM-R thus challenges our current understanding of mammalian immunity, favoring an atypical, myeloid-biased mode of innate immunosurveillance, which may contribute to its remarkable health span.
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Affiliation(s)
- Hugo G. Hilton
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Nimrod D. Rubinstein
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Peter Janki
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Andrea T. Ireland
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Nicholas Bernstein
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Nicole L. Fong
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Kevin M. Wright
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Megan Smith
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - David Finkle
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Baby Martin-McNulty
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Margaret Roy
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Denise M. Imai
- Comparative Pathology Laboratory, School of Veterinary Medicine, University of California, Davis, Davis, California, United States of America
| | - Vladimir Jojic
- Calico Life Sciences LLC, South San Francisco, California, United States of America
| | - Rochelle Buffenstein
- Calico Life Sciences LLC, South San Francisco, California, United States of America
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22
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Abstract
The Hippo pathway was originally identified as an evolutionarily-conserved signaling mechanism that contributes to the control of organ size. It was then rapidly expanded as a key pathway in the regulation of tissue development, regeneration, and cancer pathogenesis. The increasing amount of evidence in recent years has also connected this pathway to the regulation of innate and adaptive immune responses. Notably, the Hippo pathway has been revealed to play a pivotal role in adaptive immune cell lineages, as represented by the patients with T- and B-cell lymphopenia exhibiting defective expressions of the pathway component. The complex regulatory mechanisms of and by the Hippo pathway have also been evident as alternative signal transductions are employed in some immune cell types. In this review article, we summarize the current understanding of the emerging roles of the Hippo pathway in adaptive immune cell development and differentiation. We also highlight the recent findings concerning the dual functions of the Hippo pathway in autoimmunity and anti-cancer immune responses and discuss the key open questions in the interplay between the Hippo pathway and the mammalian immune system.
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Affiliation(s)
- Takayoshi Yamauchi
- Department of Molecular Enzymology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan.
| | - Toshiro Moroishi
- Department of Molecular Enzymology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan.
- Center for Metabolic Regulation of Healthy Aging, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan.
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan.
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23
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Maillard PV, van der Veen AG, Poirier EZ, Reis e Sousa C. Slicing and dicing viruses: antiviral RNA interference in mammals. EMBO J 2019; 38:e100941. [PMID: 30872283 PMCID: PMC6463209 DOI: 10.15252/embj.2018100941] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [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: 10/16/2018] [Revised: 01/17/2019] [Accepted: 01/25/2019] [Indexed: 12/15/2022] Open
Abstract
To protect against the harmful consequences of viral infections, organisms are equipped with sophisticated antiviral mechanisms, including cell-intrinsic means to restrict viral replication and propagation. Plant and invertebrate cells utilise mostly RNA interference (RNAi), an RNA-based mechanism, for cell-intrinsic immunity to viruses while vertebrates rely on the protein-based interferon (IFN)-driven innate immune system for the same purpose. The RNAi machinery is conserved in vertebrate cells, yet whether antiviral RNAi is still active in mammals and functionally relevant to mammalian antiviral defence is intensely debated. Here, we discuss cellular and viral factors that impact on antiviral RNAi and the contexts in which this system might be at play in mammalian resistance to viral infection.
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Affiliation(s)
- Pierre V Maillard
- Division of Infection and Immunity, University College London, London, UK
| | | | - Enzo Z Poirier
- Immunobiology Laboratory, The Francis Crick Institute, London, UK
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24
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Urbanowicz RA, Wang R, Schiel JE, Keck ZY, Kerzic MC, Lau P, Rangarajan S, Garagusi KJ, Tan L, Guest JD, Ball JK, Pierce BG, Mariuzza RA, Foung SKH, Fuerst TR. Antigenicity and Immunogenicity of Differentially Glycosylated Hepatitis C Virus E2 Envelope Proteins Expressed in Mammalian and Insect Cells. J Virol 2019; 93:e01403-18. [PMID: 30651366 PMCID: PMC6430559 DOI: 10.1128/jvi.01403-18] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [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: 08/14/2018] [Accepted: 12/19/2018] [Indexed: 02/07/2023] Open
Abstract
The development of a prophylactic vaccine for hepatitis C virus (HCV) remains a global health challenge. Cumulative evidence supports the importance of antibodies targeting the HCV E2 envelope glycoprotein to facilitate viral clearance. However, a significant challenge for a B cell-based vaccine is focusing the immune response on conserved E2 epitopes capable of eliciting neutralizing antibodies not associated with viral escape. We hypothesized that glycosylation might influence the antigenicity and immunogenicity of E2. Accordingly, we performed head-to-head molecular, antigenic, and immunogenic comparisons of soluble E2 (sE2) produced in (i) mammalian (HEK293) cells, which confer mostly complex- and high-mannose-type glycans; and (ii) insect (Sf9) cells, which impart mainly paucimannose-type glycans. Mass spectrometry demonstrated that all 11 predicted N-glycosylation sites were utilized in both HEK293- and Sf9-derived sE2, but that N-glycans in insect sE2 were on average smaller and less complex. Both proteins bound CD81 and were recognized by conformation-dependent antibodies. Mouse immunogenicity studies revealed that similar polyclonal antibody responses were generated against antigenic domains A to E of E2. Although neutralizing antibody titers showed that Sf9-derived sE2 induced moderately stronger responses than did HEK293-derived sE2 against the homologous HCV H77c isolate, the two proteins elicited comparable neutralization titers against heterologous isolates. Given that global alteration of HCV E2 glycosylation by expression in different hosts did not appreciably affect antigenicity or overall immunogenicity, a more productive approach to increasing the antibody response to neutralizing epitopes may be complete deletion, rather than just modification, of specific N-glycans proximal to these epitopes.IMPORTANCE The development of a vaccine for hepatitis C virus (HCV) remains a global health challenge. A major challenge for vaccine development is focusing the immune response on conserved regions of the HCV envelope protein, E2, capable of eliciting neutralizing antibodies. Modification of E2 by glycosylation might influence the immunogenicity of E2. Accordingly, we performed molecular and immunogenic comparisons of E2 produced in mammalian and insect cells. Mass spectrometry demonstrated that the predicted glycosylation sites were utilized in both mammalian and insect cell E2, although the glycan types in insect cell E2 were smaller and less complex. Mouse immunogenicity studies revealed similar polyclonal antibody responses. However, insect cell E2 induced stronger neutralizing antibody responses against the homologous isolate used in the vaccine, albeit the two proteins elicited comparable neutralization titers against heterologous isolates. A more productive approach for vaccine development may be complete deletion of specific glycans in the E2 protein.
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Affiliation(s)
- Richard A Urbanowicz
- School of Life Sciences, The University of Nottingham, Nottingham, United Kingdom
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and The University of Nottingham, Nottingham, United Kingdom
| | - Ruixue Wang
- W. M. Keck Laboratory for Structural Biology, University of Maryland Institute for Bioscience and Biotechnology Research, Rockville, Maryland, USA
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - John E Schiel
- University of Maryland Institute for Bioscience and Biotechnology Research, National Institute of Standards and Technology, Rockville, Maryland, USA
| | - Zhen-Yong Keck
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
| | - Melissa C Kerzic
- W. M. Keck Laboratory for Structural Biology, University of Maryland Institute for Bioscience and Biotechnology Research, Rockville, Maryland, USA
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Patrick Lau
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
| | - Sneha Rangarajan
- W. M. Keck Laboratory for Structural Biology, University of Maryland Institute for Bioscience and Biotechnology Research, Rockville, Maryland, USA
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Kyle J Garagusi
- W. M. Keck Laboratory for Structural Biology, University of Maryland Institute for Bioscience and Biotechnology Research, Rockville, Maryland, USA
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Lei Tan
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
| | - Johnathan D Guest
- W. M. Keck Laboratory for Structural Biology, University of Maryland Institute for Bioscience and Biotechnology Research, Rockville, Maryland, USA
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Jonathan K Ball
- School of Life Sciences, The University of Nottingham, Nottingham, United Kingdom
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and The University of Nottingham, Nottingham, United Kingdom
| | - Brian G Pierce
- W. M. Keck Laboratory for Structural Biology, University of Maryland Institute for Bioscience and Biotechnology Research, Rockville, Maryland, USA
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Roy A Mariuzza
- W. M. Keck Laboratory for Structural Biology, University of Maryland Institute for Bioscience and Biotechnology Research, Rockville, Maryland, USA
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
| | - Steven K H Foung
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
| | - Thomas R Fuerst
- W. M. Keck Laboratory for Structural Biology, University of Maryland Institute for Bioscience and Biotechnology Research, Rockville, Maryland, USA
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA
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25
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Abstract
Consistent patterns of positive selection in functionally similar genes can suggest a common selective pressure across a group of species. We use alignments of orthologous protein-coding genes from 39 species of birds to estimate parameters related to positive selection for 11,000 genes conserved across birds. We show that functional pathways related to the immune system, recombination, lipid metabolism, and phototransduction are enriched for positively selected genes. By comparing our results with mammalian data, we find a significant enrichment for positively selected genes shared between taxa, and that these shared selected genes are enriched for viral immune pathways. Using pathogen-challenge transcriptome data, we show that genes up-regulated in response to pathogens are also enriched for positively selected genes. Together, our results suggest that pathogens, particularly viruses, consistently target the same genes across divergent clades, and that these genes are hotspots of host-pathogen conflict over deep evolutionary time.
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Affiliation(s)
- Allison J Shultz
- Informatics GroupHarvard UniversityCambridgeUnited States
- Department of Organismic and Evolutionary BiologyHarvard UniversityCambridgeUnited States
- Museum of Comparative ZoologyHarvard UniversityCambridgeUnited States
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26
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Redmond AK, Ohta Y, Criscitiello MF, Macqueen DJ, Flajnik MF, Dooley H. Haptoglobin Is a Divergent MASP Family Member That Neofunctionalized To Recycle Hemoglobin via CD163 in Mammals. J Immunol 2018; 201:2483-2491. [PMID: 30194112 PMCID: PMC6179929 DOI: 10.4049/jimmunol.1800508] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 08/14/2018] [Indexed: 11/19/2022]
Abstract
In mammals, haptoglobin (Hp) is an acute-phase plasma protein that binds with high affinity to hemoglobin (Hb) released by intravascular hemolysis. The resultant Hp-Hb complexes are bound and cleared by the scavenger receptor CD163, limiting Hb-induced oxidative damage. In this study, we show that Hp is a divergent member of the complement-initiating MASP family of proteins, which emerged in the ancestor of jawed vertebrates. We demonstrate that Hp has been independently lost from multiple vertebrate lineages, that characterized Hb-interacting residues of mammals are poorly conserved in nonmammalian species maintaining Hp, and that the extended loop 3 region of Hp, which mediates CD163 binding, is present only in mammals. We show that the Hb-binding ability of cartilaginous fish (nurse shark, Ginglymostoma cirratum; small-spotted catshark, Scyliorhinus canicula; and thornback ray, Raja clavata) and teleost fish (rainbow trout, Oncorhynchus mykiss) Hp is species specific, and where binding does occur it is likely mediated through a different structural mechanism to mammalian Hp. The continued, high-level expression of Hp in cartilaginous fishes in which Hb binding is not evident signals that Hp has (an)other, yet unstudied, role(s) in these species. Previous work indicates that mammalian Hp also has secondary, immunomodulatory functions that are independent of Hb binding; our work suggests these may be remnants of evolutionary more ancient functions, retained after Hb removal became the primary role of Hp in mammals.
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Affiliation(s)
- Anthony K Redmond
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 2TZ, United Kingdom
- Centre for Genome-Enabled Biology and Medicine, University of Aberdeen, Aberdeen AB24 2TZ, United Kingdom
| | - Yuko Ohta
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Michael F Criscitiello
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843; and
| | - Daniel J Macqueen
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 2TZ, United Kingdom
| | - Martin F Flajnik
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Helen Dooley
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 2TZ, United Kingdom;
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201
- Institute of Marine and Environmental Technology, Baltimore, MD 21202
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27
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Uchimura Y, Fuhrer T, Li H, Lawson MA, Zimmermann M, Yilmaz B, Zindel J, Ronchi F, Sorribas M, Hapfelmeier S, Ganal-Vonarburg SC, Gomez de Agüero M, McCoy KD, Sauer U, Macpherson AJ. Antibodies Set Boundaries Limiting Microbial Metabolite Penetration and the Resultant Mammalian Host Response. Immunity 2018; 49:545-559.e5. [PMID: 30193848 PMCID: PMC6162337 DOI: 10.1016/j.immuni.2018.08.004] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 06/12/2018] [Accepted: 08/03/2018] [Indexed: 02/07/2023]
Abstract
Although the mammalian microbiota is well contained within the intestine, it profoundly shapes development and metabolism of almost every host organ. We questioned the range and depth of microbial metabolite penetration into the host, and how this is modulated by intestinal immunity. Chemically identical microbial and host metabolites were distinguished by stable isotope tracing from 13C-labeled live non-replicating Escherichia coli, differentiating 12C host isotopes with high-resolution mass spectrometry. Hundreds of endogenous microbial compounds penetrated 23 host tissues and fluids after intestinal exposure: subsequent 12C host metabolome signatures included lipidemia, reduced glycolysis, and inflammation. Penetrant bacterial metabolites from the small intestine were rapidly cleared into the urine, whereas induced antibodies curtailed microbial metabolite exposure by accelerating intestinal bacterial transit into the colon where metabolite transport mechanisms are limiting. Pervasive penetration of microbial molecules can cause extensive host tissue responses: these are limited by immune and non-immune intestinal mucosal adaptations to the microbiota. Metabolites from mutualistic bacteria broadly penetrate host tissues and organs Bacterial metabolites induce widespread host metabolic and immunological responses The small intestine is highly susceptible to host-microbial metabolomic exchange Secretory immunoglobulins accelerate microbial clearance from the small intestine
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Affiliation(s)
- Yasuhiro Uchimura
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland; Department of Anatomy and Cell Biology, Shiga University of Medical Science, 520-2192 Shiga, Japan
| | - Tobias Fuhrer
- Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zürich, Zürich, Switzerland
| | - Hai Li
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland
| | - Melissa A Lawson
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland
| | - Michael Zimmermann
- Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zürich, Zürich, Switzerland
| | - Bahtiyar Yilmaz
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland
| | - Joel Zindel
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland
| | - Francesca Ronchi
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland
| | - Marcel Sorribas
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland
| | | | - Stephanie C Ganal-Vonarburg
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland
| | - Mercedes Gomez de Agüero
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland
| | - Kathy D McCoy
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland
| | - Uwe Sauer
- Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zürich, Zürich, Switzerland.
| | - Andrew J Macpherson
- Maurice Müller Laboratories (Department of Biomedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland.
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Ning P, Zheng Z, Aweya JJ, Yao D, Li S, Ma H, Wang F, Zhang Y. Litopenaeus vannamei notch affects lipopolysaccharides induced reactive oxygen species. Dev Comp Immunol 2018; 81:74-82. [PMID: 29155012 DOI: 10.1016/j.dci.2017.11.010] [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] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 11/14/2017] [Accepted: 11/14/2017] [Indexed: 06/07/2023]
Abstract
Notch signaling pathway was originally discovered in the development stage of drosophila but has recently been found to play essential roles in innate immunity. Most previous studies on Notch have focused on mammals, whereas, in this study, we employed the shrimp Litopenaeus vannamei as a model to study the functions of Notch in invertebrate innate immune system. Our results showed that LvNotch was highly expressed in hemocytes and could be strongly induced by lipopolysaccharides (LPS) injection. Small interfering RNA (siRNA)-mediated knockdown of LvNotch could significantly increase LPS induced L. vannamei mortality, which might be due to the fact that LPS induced ROS was greatly enhanced in LvNotch knockdown shrimps. Further, quantitative polymerase chain reaction (qPCR) analysis revealed that LvNotch could affect the expression of multiple genes, including dorsal, relish, anti-lipopolysaccharide factor 1 (ALF1), ALF3 and NADH dehydrogenases which were upregulated, and Hypoxia-inducible factor (HIF, α/β) which were downregulated in LPS treated shrimps. In summary, LvNotch is important in the control of inflammation-induced ROS production in shrimp.
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Affiliation(s)
- Pei Ning
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Zhihong Zheng
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Jude Juventus Aweya
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Defu Yao
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Shengkang Li
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Hongyu Ma
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Fan Wang
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
| | - Yueling Zhang
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
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Skála V, Walker AJ, Horák P. Extracellular trap-like fiber release may not be a prominent defence response in snails: evidence from three species of freshwater gastropod molluscs. Dev Comp Immunol 2018; 79:137-141. [PMID: 29069574 DOI: 10.1016/j.dci.2017.10.011] [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: 07/14/2017] [Revised: 10/18/2017] [Accepted: 10/19/2017] [Indexed: 06/07/2023]
Abstract
The discovery that mammalian neutrophils generate extracellular chromatin fibers that entrap/kill bacteria supported a new paradigm for innate immunity in animals. Similar findings in other models across diverse taxa have led to the hypothesis that the phenomenon is ancient and evolutionary conserved. Here, using a variety of synthetic (e.g. peptidoglycan) and biological (e.g. trematode larvae) components to investigate extracellular trap-like (ET-like) fiber production in vitro by haemocytes of Lymnaea stagnalis, Radix lagotis and Planorbarius corneus snails, ET-like fibers were rarely observed. We suggest, therefore, that ET-like fibers play a marginal role in defence of these snail species and thus the fiber production may not be a critical process underpinning immunity in all invertebrate species.
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Affiliation(s)
- Vladimír Skála
- Charles University, Faculty of Science, Department of Parasitology, Prague, Czech Republic; Charles University, First Faculty of Medicine, Institute of Immunology and Microbiology, Prague, Czech Republic.
| | - Anthony J Walker
- Kingston University, School of Life Sciences, Pharmacy and Chemistry, Molecular Parasitology Laboratory, Kingston Upon Thames, Surrey, United Kingdom
| | - Petr Horák
- Charles University, Faculty of Science, Department of Parasitology, Prague, Czech Republic
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Shaw AE, Hughes J, Gu Q, Behdenna A, Singer JB, Dennis T, Orton RJ, Varela M, Gifford RJ, Wilson SJ, Palmarini M. Fundamental properties of the mammalian innate immune system revealed by multispecies comparison of type I interferon responses. PLoS Biol 2017; 15:e2004086. [PMID: 29253856 PMCID: PMC5747502 DOI: 10.1371/journal.pbio.2004086] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [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: 08/29/2017] [Revised: 12/29/2017] [Accepted: 11/22/2017] [Indexed: 12/31/2022] Open
Abstract
The host innate immune response mediated by type I interferon (IFN) and the resulting up-regulation of hundreds of interferon-stimulated genes (ISGs) provide an immediate barrier to virus infection. Studies of the type I ‘interferome’ have mainly been carried out at a single species level, often lacking the power necessary to understand key evolutionary features of this pathway. Here, using a single experimental platform, we determined the properties of the interferomes of multiple vertebrate species and developed a webserver to mine the dataset. This approach revealed a conserved ‘core’ of 62 ISGs, including genes not previously associated with IFN, underscoring the ancestral functions associated with this antiviral host response. We show that gene expansion contributes to the evolution of the IFN system and that interferomes are shaped by lineage-specific pressures. Consequently, each mammal possesses a unique repertoire of ISGs, including genes common to all mammals and others unique to their specific species or phylogenetic lineages. An analysis of genes commonly down-regulated by IFN suggests that epigenetic regulation of transcription is a fundamental aspect of the IFN response. Our study provides a resource for the scientific community highlighting key paradigms of the type I IFN response. The type I interferon (IFN) response is triggered upon sensing of an incoming pathogen in an infected cell and results in the expression of hundreds of IFN-stimulated genes (ISGs, collectively referred to as ‘the interferome’). Studies on the interferome have been carried out mainly in human cells and therefore often lack the power to understand comparative evolutionary aspects of this critical pathway. In this study, we characterized the interferome in several animal species (including humans) using a single experimental framework. This approach allowed us to identify fundamental properties of the innate immune system. In particular, we revealed 62 ‘core’ ISGs, up-regulated in response to IFN in all vertebrates, highlighting the ancestral functions of the IFN system. In addition, we show that many genes repressed by the IFN response normally function as regulators of cell transcription. ISGs shared by multiple species have a higher propensity than other genes to exist as multiple copies in the genome. Importantly, we observed that genes have arisen as ISGs throughout evolution. Hence, every animal species possesses a unique repertoire of ISGs that includes core and lineage-specific genes. Collectively, our data provide a framework on which it will be possible to test the role of the IFN response in pathogen emergence and cross-species transmission.
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Affiliation(s)
- Andrew E. Shaw
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Joseph Hughes
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Quan Gu
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Abdelkader Behdenna
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Joshua B. Singer
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Tristan Dennis
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Richard J. Orton
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Mariana Varela
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Robert J. Gifford
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Sam J. Wilson
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
- * E-mail: (SJW); (MP)
| | - Massimo Palmarini
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
- * E-mail: (SJW); (MP)
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Kang HM, Jeong CB, Lee YH, Cui YH, Kim DH, Lee MC, Kim HS, Han J, Hwang DS, Lee SJ, Lee JS. Cross-reactivities of mammalian MAPKs antibodies in rotifer and copepod: Application in mechanistic studies in aquatic ecotoxicology. Mar Pollut Bull 2017; 124:614-623. [PMID: 28012735 DOI: 10.1016/j.marpolbul.2016.11.049] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/01/2016] [Accepted: 11/19/2016] [Indexed: 06/06/2023]
Abstract
The mitogen-activated protein kinases (MAPKs) family is known to mediate various biological processes in response to diverse environmental pollutants. Although MAPKs are well characterized and studied in vertebrates, in invertebrates the cross-reactivities of MAPKs antibodies were not clearly known in response to environmental pollutants due to limited information of antibody epitopes with material resources for invertebrates. In this paper, we performed phylogenetic analysis of MAPKs genes in the marine rotifer Brachionus koreanus and the copepods Paracyclopina nana and Tigriopus japonicus. Also in rotifer and copepods, several studies of Western blot of MAPK signaling pathways were shown in response to environmental pollutants, including multi-walled carbon nanotubes (MWCNTs), water-accommodated fractions (WAFs) of crude oil, and microplastics. This paper will provide a better understanding of the underlying mechanistic scenario in terms of cross-reactivities of mammalian antibodies in rotifer and copepod.
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Affiliation(s)
- Hye-Min Kang
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Chang-Bum Jeong
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea; Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 04763, South Korea
| | - Young Hwan Lee
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Yan-Hong Cui
- Department of Life Sciences, College of Natural Sciences, Hanyang University, Seoul 04763, South Korea
| | - Duck-Hyun Kim
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Min-Chul Lee
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Hui-Su Kim
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Jeonghoon Han
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Dae-Sik Hwang
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Su-Jae Lee
- Department of Life Sciences, College of Natural Sciences, Hanyang University, Seoul 04763, South Korea
| | - Jae-Seong Lee
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
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32
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Nonaka MI, Terado T, Kimura H, Nonaka M. Evolutionary analysis of two complement C4 genes: Ancient duplication and conservation during jawed vertebrate evolution. Dev Comp Immunol 2017; 68:1-11. [PMID: 27840295 DOI: 10.1016/j.dci.2016.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 09/28/2016] [Revised: 11/05/2016] [Accepted: 11/05/2016] [Indexed: 06/06/2023]
Abstract
The complement C4 is a thioester-containing protein, and a histidine (H) residue catalyzes the cleavage of the thioester to allow covalent binding to carbohydrates on target cells. Some mammalian and teleost species possess an additional isotype where the catalytic H is replaced by an aspartic acid (D), which binds preferentially to proteins. We found the two C4 isotypes in many other jawed vertebrates, including sharks and birds/reptiles. Phylogenetic analysis suggested that C4 gene duplication occurred in the early days of the jawed vertebrate evolution. The D-type C4 of bony fish except for mammals formed a cluster, termed D-lineage. The D-lineage genes were located in a syntenic region outside MHC, and evolved conservatively. Mammals lost the D-lineage before speciation, but D-type C4 was regenerated by recent gene duplication in some mammalian species or groups. Dual C4 molecules with different substrate specificities would have contributed to development of the antibody-dependent classical pathway.
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Affiliation(s)
- Mayumi I Nonaka
- Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.
| | - Tokio Terado
- Department of Molecular Genetics in Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Hiroshi Kimura
- Department of Molecular Genetics in Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Masaru Nonaka
- Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
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33
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Flint A, Stintzi A, Saraiva LM. Oxidative and nitrosative stress defences of Helicobacter and Campylobacter species that counteract mammalian immunity. FEMS Microbiol Rev 2016; 40:938-960. [PMID: 28201757 PMCID: PMC5091033 DOI: 10.1093/femsre/fuw025] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [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] [Revised: 03/29/2016] [Accepted: 07/02/2016] [Indexed: 12/18/2022] Open
Abstract
Helicobacter and Campylobacter species are Gram-negative microaerophilic host-associated heterotrophic bacteria that invade the digestive tract of humans and animals. Campylobacter jejuni is the major worldwide cause of foodborne gastroenteritis in humans, while Helicobacter pylori is ubiquitous in over half of the world's population causing gastric and duodenal ulcers. The colonisation of the gastrointestinal system by Helicobacter and Campylobacter relies on numerous cellular defences to sense the host environment and respond to adverse conditions, including those imposed by the host immunity. An important antimicrobial tool of the mammalian innate immune system is the generation of harmful oxidative and nitrosative stresses to which pathogens are exposed during phagocytosis. This review summarises the regulators, detoxifying enzymes and subversion mechanisms of Helicobacter and Campylobacter that ultimately promote the successful infection of humans.
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Affiliation(s)
- Annika Flint
- Ottawa Institute of Systems Biology, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | - Alain Stintzi
- Ottawa Institute of Systems Biology, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | - Lígia M. Saraiva
- Instituto de Tecnologia Química e Biológica, NOVA, Av. da República, 2780-157 Oeiras, Portugal
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34
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Wang Z, Li S, Li F, Xie S, Xiang J. Identification and function analysis of a novel vascular endothelial growth factor, LvVEGF3, in the Pacific whiteleg shrimp Litopenaeus vannamei. Dev Comp Immunol 2016; 63:111-120. [PMID: 27241034 DOI: 10.1016/j.dci.2016.05.020] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/25/2016] [Accepted: 05/26/2016] [Indexed: 06/05/2023]
Abstract
VEGF signaling pathway is first discovered in mammals and proved to play important roles in the biological processes of angiogenesis, tumor migration, cell differentiation, apoptosis, host-virus interaction etc. Three members in the VEGF signaling pathway, including LvVEGFR, LvVEGF1 and LvVEGF2 in shrimp have been proved to be related with WSSV infection in our previous studies. Currently, another member of VEGF family, LvVEGF3, was isolated and its function during the WSSV infection of shrimp was studied. The deduced amino acid sequence of LvVEGF3 contained a signal peptide, a typical PDGF/VEGF domain and a cysteine-knot motif (CXCXC). Tissue distribution analysis showed that LvVEGF3 was predominantly expressed in hemocytes. The transcriptional level of LvVEGF3 in hemocytes was apparently up-regulated during WSSV infection. Silencing of LvVEGF3 with double-stranded RNA caused a reduction of the cumulative mortality rate of shrimp during WSSV infection. The expression of LvVEGFR was apparently down-regulated after LvVEGF3 silencing and up-regulated after injection of recombinant LvVEGF3 protein, suggesting an interaction between LvVEGF3 and LvVEGFR. Furthermore, the interaction between LvVEGFR and LvVEGF3 was confirmed using the yeast two-hybrid system. The results provided new insights into understanding the role of VEGF signaling pathway during virus infection.
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Affiliation(s)
- Zhiwei Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shihao Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; National & Local Joint Engineering Laboratory of Ecological Mariculture, 7 Nanhai Road, Qingdao, 266071, China
| | - Fuhua Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; National & Local Joint Engineering Laboratory of Ecological Mariculture, 7 Nanhai Road, Qingdao, 266071, China.
| | - Shijun Xie
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianhai Xiang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; National & Local Joint Engineering Laboratory of Ecological Mariculture, 7 Nanhai Road, Qingdao, 266071, China
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35
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Ng JHJ, Tachedjian M, Deakin J, Wynne JW, Cui J, Haring V, Broz I, Chen H, Belov K, Wang LF, Baker ML. Evolution and comparative analysis of the bat MHC-I region. Sci Rep 2016; 6:21256. [PMID: 26876644 PMCID: PMC4753418 DOI: 10.1038/srep21256] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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: 10/07/2015] [Accepted: 01/20/2016] [Indexed: 12/22/2022] Open
Abstract
Bats are natural hosts to numerous viruses and have ancient origins, having diverged from other eutherian mammals early in evolution. These characteristics place them in an important position to provide insights into the evolution of the mammalian immune system and antiviral immunity. We describe the first detailed partial map of a bat (Pteropus alecto) MHC-I region with comparative analysis of the MHC-I region and genes. The bat MHC-I region is highly condensed, yet relatively conserved in organisation, and is unusual in that MHC-I genes are present within only one of the three highly conserved class I duplication blocks. We hypothesise that MHC-I genes first originated in the β duplication block, and subsequently duplicated in a step-wise manner across the MHC-I region during mammalian evolution. Furthermore, bat MHC-I genes contain unique insertions within their peptide-binding grooves potentially affecting the peptide repertoire presented to T cells, which may have implications for the ability of bats to control infection without overt disease.
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Affiliation(s)
- Justin H. J. Ng
- CSIRO Health and Biosecurity Business Unit, Australian Animal Health Laboratory, Geelong, VIC 3220, Australia
- Faculty of Veterinary Science, University of Sydney, NSW 2006, Australia
- Program in Emerging Infectious Diseases, Duke-National University of Singapore Medical School, Singapore 169857
| | - Mary Tachedjian
- CSIRO Health and Biosecurity Business Unit, Australian Animal Health Laboratory, Geelong, VIC 3220, Australia
| | - Janine Deakin
- Institute for Applied Ecology, The University of Canberra, ACT 2617, Australia
| | - James W. Wynne
- CSIRO Health and Biosecurity Business Unit, Australian Animal Health Laboratory, Geelong, VIC 3220, Australia
| | - Jie Cui
- Program in Emerging Infectious Diseases, Duke-National University of Singapore Medical School, Singapore 169857
| | - Volker Haring
- CSIRO, Australian Animal Health Laboratory, Geelong, VIC 3220, Australia
| | - Ivano Broz
- CSIRO, Australian Animal Health Laboratory, Geelong, VIC 3220, Australia
| | - Honglei Chen
- CSIRO, Australian Animal Health Laboratory, Geelong, VIC 3220, Australia
| | - Katherine Belov
- Faculty of Veterinary Science, University of Sydney, NSW 2006, Australia
| | - Lin-Fa Wang
- Program in Emerging Infectious Diseases, Duke-National University of Singapore Medical School, Singapore 169857
| | - Michelle L. Baker
- CSIRO Health and Biosecurity Business Unit, Australian Animal Health Laboratory, Geelong, VIC 3220, Australia
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36
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Hodyra-Stefaniak K, Miernikiewicz P, Drapała J, Drab M, Jończyk-Matysiak E, Lecion D, Kaźmierczak Z, Beta W, Majewska J, Harhala M, Bubak B, Kłopot A, Górski A, Dąbrowska K. Mammalian Host-Versus-Phage immune response determines phage fate in vivo. Sci Rep 2015; 5:14802. [PMID: 26440922 PMCID: PMC4594097 DOI: 10.1038/srep14802] [Citation(s) in RCA: 169] [Impact Index Per Article: 18.8] [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: 05/27/2015] [Accepted: 09/09/2015] [Indexed: 02/06/2023] Open
Abstract
Emerging bacterial antibiotic resistance draws attention to bacteriophages as a therapeutic alternative to treat bacterial infection. Examples of phage that combat bacteria abound. However, despite careful testing of antibacterial activity in vitro, failures nevertheless commonly occur. We investigated immunological response of phage antibacterial potency in vivo. Anti-phage activity of phagocytes, antibodies, and serum complement were identified by direct testing and by high-resolution fluorescent microscopy. We accommodated the experimental data into a mathematical model. We propose a universal schema of innate and adaptive immunity impact on phage pharmacokinetics, based on the results of our numerical simulations. We found that the mammalian-host response to infecting bacteria causes the concomitant removal of phage from the system. We propose the notion that this effect as an indirect pathway of phage inhibition by bacteria with significant relevance for the clinical outcome of phage therapy.
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Affiliation(s)
- Katarzyna Hodyra-Stefaniak
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Paulina Miernikiewicz
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Jarosław Drapała
- Institute of Computer Science, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370, Wrocław, Poland
| | - Marek Drab
- USI, Unit of Nanostructural Bio-Interactions, Department of Immunology of Infectious Diseases, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wroclaw, Poland
| | - Ewa Jończyk-Matysiak
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Dorota Lecion
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Zuzanna Kaźmierczak
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Weronika Beta
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Joanna Majewska
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Marek Harhala
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Barbara Bubak
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Anna Kłopot
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Andrzej Górski
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
| | - Krystyna Dąbrowska
- Bacteriophage Laboratory, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland
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Jolles AE, Beechler BR, Dolan BP. Beyond mice and men: environmental change, immunity and infections in wild ungulates. Parasite Immunol 2015; 37:255-66. [PMID: 25354672 PMCID: PMC4414670 DOI: 10.1111/pim.12153] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 06/13/2014] [Accepted: 10/16/2014] [Indexed: 02/06/2023]
Abstract
In the face of rapid environmental change, anticipating shifts in microparasite and macroparasite dynamics, including emergence events, is an enormous challenge. We argue that immunological studies in natural populations are pivotal to meeting this challenge: many components of environmental change--shifts in biotic assemblages, altered climate patterns and reduced environmental predictability--may affect host immunity. We suggest that wild ungulates can serve as model systems aiding the discovery of immunological mechanisms that link environmental change with parasite transmission dynamics. Our review of eco-immunological studies in wild ungulates reveals progress in understanding how co-infections affect immunity and parasite transmission and how environmental and genetic factors interact to shape immunity. Changes in bioavailability of micronutrients have been linked to immunity and health in wild ungulates. Although physiological stress in response to environmental change has been assessed, downstream effects on immunity have not been studied. Moreover, the taxonomic range of ungulates studied is limited to bovids (bighorn sheep, Soay sheep, chamois, musk oxen, bison, African buffalo) and a few cervids (red deer, black-tailed deer). We discuss areas where future studies in ungulates could lead to significant contributions in understanding the patterns of immunity and infection in natural populations and across species.
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Affiliation(s)
- Anna E. Jolles
- Department of Biomedical Sciences, Oregon State University, Corvallis, OR 97331
- Department of Integrative Biology, Oregon State University, Corvallis, OR 97331
| | - Brianna R. Beechler
- Department of Biomedical Sciences, Oregon State University, Corvallis, OR 97331
| | - Brian P. Dolan
- Department of Biomedical Sciences, Oregon State University, Corvallis, OR 97331
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Sun B, Greiner-Tollersrud L, Koop BF, Robertsen B. Atlantic salmon possesses two clusters of type I interferon receptor genes on different chromosomes, which allows for a larger repertoire of interferon receptors than in zebrafish and mammals. Dev Comp Immunol 2014; 47:275-86. [PMID: 25149134 DOI: 10.1016/j.dci.2014.08.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [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: 06/03/2014] [Revised: 08/13/2014] [Accepted: 08/14/2014] [Indexed: 06/03/2023]
Abstract
Mammalian type I interferons (IFNs) signal through a receptor composed of the IFNAR1 and IFNAR2 chains. In zebrafish two-cysteine IFNs utilize a receptor composed of CRFB1 and CRFB5, while four-cysteine IFNs signal through a receptor formed by CRFB2 and CRFB5. In the present work two CRFB clusters were identified in different chromosomes of Atlantic salmon. Genes of three CRFB5s, one CRFB1, one CRFB2 and the novel CRFB5x were identified, cloned and studied functionally. All CRFBs were expressed in 10 different organs, but the relative expression of CRFBs varied. Mx-reporter assay was used to study which CRFBs might be involved in receptors for salmon IFNa, IFNb and IFNc. The results of Mx-reporter assays suggest that IFNa signals through a receptor composed of CRFB1a as the long chain and either CRFB5a, CRFB5b or CRFB5c as the short chain; IFNc signals through a receptor with CRFB5a or CRFB5c as the short chain while IFNb may signal through a receptor with CRFB5x as a short chain. Taken together, the present work demonstrates that Atlantic salmon has a more diverse repertoire of type I IFN receptors compared to zebrafish or mammals.
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Affiliation(s)
- Baojian Sun
- Norwegian College of Fishery Science, University of Tromsø, 9037 Tromsø, Norway
| | | | - Ben F Koop
- Centre for Biomedical Research, Department of Biology, University of Victoria, PO Box 3020 STN CSC, Victoria, Canada
| | - Børre Robertsen
- Norwegian College of Fishery Science, University of Tromsø, 9037 Tromsø, Norway.
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39
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Kanwal Z, Wiegertjes GF, Veneman WJ, Meijer AH, Spaink HP. Comparative studies of Toll-like receptor signalling using zebrafish. Dev Comp Immunol 2014; 46:35-52. [PMID: 24560981 DOI: 10.1016/j.dci.2014.02.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [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: 12/02/2013] [Revised: 02/04/2014] [Accepted: 02/06/2014] [Indexed: 06/03/2023]
Abstract
Zebrafish model systems for infectious disease are increasingly used for the functional analysis of molecular pattern recognition processes. These studies benefit from the high conservation level of all innate immune factors in vertebrates. Zebrafish studies are strategically well positioned for this because of the ease of comparisons with studies in other fish species of which the immune system also has been intensively studied, but that are currently still less amendable to detailed genetic or microscopic studies. In this paper we focus on Toll-like receptor (TLR) signalling factors, which currently are the best characterized in mammalian systems. We review the knowledge on TLR signalling in the context of recent advances in zebrafish studies and discuss possibilities for future approaches that can complement studies in cell cultures and rodent models. A focus in these comparisons is the role of negative control mechanisms in immune responses that appear very important in a whole organism to keep adverse systemic responses in check. We also pay much attention to comparisons with studies in common carp that is highly related to zebrafish and that because of its large body mass can complement immune studies in zebrafish.
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Affiliation(s)
- Zakia Kanwal
- Department of Animal Sciences and Health, Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Geert F Wiegertjes
- Cell Biology and Immunology Group, Wageningen Institute of Animal Sciences, Wageningen University, PO Box 338, 6700 AH Wageningen, The Netherlands
| | - Wouter J Veneman
- Department of Animal Sciences and Health, Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Annemarie H Meijer
- Department of Animal Sciences and Health, Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Herman P Spaink
- Department of Animal Sciences and Health, Institute of Biology, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
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40
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Abstract
While RNA interference (RNAi) functions as an antiviral response in plants, nematodes, and arthropods, a similar antiviral role in mammals has remained controversial. Three recent papers provide evidence that either favors or challenges this hypothesis. Here, we discuss these new findings in the context of previous research.
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Affiliation(s)
- Bryan R Cullen
- Department of Molecular Genetics & Microbiology and Center for Virology, Duke University Medical Center, Durham, NC 27710, USA.
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41
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Gomez D, Sunyer JO, Salinas I. The mucosal immune system of fish: the evolution of tolerating commensals while fighting pathogens. Fish Shellfish Immunol 2013; 35:1729-39. [PMID: 24099804 PMCID: PMC3963484 DOI: 10.1016/j.fsi.2013.09.032] [Citation(s) in RCA: 412] [Impact Index Per Article: 37.5] [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: 03/04/2013] [Revised: 09/09/2013] [Accepted: 09/23/2013] [Indexed: 05/04/2023]
Abstract
The field of mucosal immunology research has grown fast over the past few years, and our understanding on how mucosal surfaces respond to complex antigenic cocktails is expanding tremendously. With the advent of new molecular sequencing techniques, it is easier to understand how the immune system of vertebrates is, to a great extent, orchestrated by the complex microbial communities that live in symbiosis with their hosts. The commensal microbiota is now seen as the "extended self" by many scientists. Similarly, fish immunologist are devoting important research efforts to the field of mucosal immunity and commensals. Recent breakthroughs on our understanding of mucosal immune responses in teleost fish open up the potential of teleosts as animal research models for the study of human mucosal diseases. Additionally, this new knowledge places immunologists in a better position to specifically target the fish mucosal immune system while rationally designing mucosal vaccines and other immunotherapies. In this review, an updated view on how teleost skin, gills and gut immune cells and molecules, function in response to pathogens and commensals is provided. Finally, some of the future avenues that the field of fish mucosal immunity may follow in the next years are highlighted.
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Affiliation(s)
- Daniela Gomez
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - J Oriol Sunyer
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Irene Salinas
- Center for Theoretical and Evolutionary Immunology (CETI), Department of Biology, MSC03 2020, University of New Mexico, Albuquerque, NM, 87131, USA
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Aoki T, Hikima JI, Hwang SD, Jung TS. Innate immunity of finfish: primordial conservation and function of viral RNA sensors in teleosts. Fish Shellfish Immunol 2013; 35:1689-1702. [PMID: 23462146 DOI: 10.1016/j.fsi.2013.02.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [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: 11/19/2012] [Revised: 01/25/2013] [Accepted: 02/08/2013] [Indexed: 06/01/2023]
Abstract
During the past decade, huge progress has been made in research into teleost PAMPs (pathogen-associated molecule patterns) recognition receptors (PRRs). Numerous fish PRR genes have been identified, and the primordial functions of PRRs involved in the innate immune response to viral infection (especially those responsible for sensing viral RNA) have been increasingly clarified in teleosts. Particular progress has been made in our understanding of Toll-like receptors (TLRs) and retinoic acid inducible gene I (RIG-I)-like receptors (RLRs). However, there are important evolutionary differences between teleosts and mammals; for instance, seven TLR repertoires (TLR5S, -14, -19, -20, -21, -22 and -23) are present in teleosts but not in mammals, indicating that some TLRs likely possess different functions. Thus, comparison of PRRs in teleosts and mammals may help us understand the immune responses triggered by host-pathogen interactions in teleosts. In this article, the evolutionary conservations and divergences in the PRR mechanisms of teleosts and mammals are examined, with a focus on their molecular features and the recognition of viral RNA by fish TLRs and RLRs. In addition, the mechanism of type I interferon gene expression in teleosts, which is enhanced after the recognition of viral RNA by fish TLRs and RLRs, is also introduced.
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Affiliation(s)
- Takashi Aoki
- Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, 513, Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan; Aquatic Biotechnology Center, College of Veterinary Medicine, Gyeongsang National University, 900, Gajwa-dong, Jinju, Gyeongnam 660-710, South Korea.
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Oláh I, Nagy N. Retrospection to discovery of bursal function and recognition of avian dendritic cells; past and present. Dev Comp Immunol 2013; 41:310-315. [PMID: 23570710 DOI: 10.1016/j.dci.2013.03.007] [Citation(s) in RCA: 5] [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: 01/30/2013] [Accepted: 03/14/2013] [Indexed: 06/02/2023]
Abstract
In 1954 the discovery of bursal function was one of the major contributions to the formation of the T and B cell concept of immunology. In 1978 the avian dendritic cells; bursal secretory dendritic cell (BSDC) and follicular dendritic cell (FDC) in the cecal tonsil were recognized. In 1982 the interdigitating dendritic cell was described in the periarteriolar lymphatic sheath (PALS) of the spleen. This paper is a retrospection of the stories of the discovery of bursal function and recognition of avian dendritic cells and includes the markers which can be used for monitoring and characterizing avian dendritic cells.
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Affiliation(s)
- Imre Oláh
- Department of Human Morphology and Developmental Biology, Faculty of Medicine, Semmelweis University, Hungary.
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Abstract
Host defense peptides (HDPs) are important effector molecules of the innate immune system of vertebrates. These antimicrobial peptides are also present in invertebrates, plants and fungi. HDPs display broad-spectrum antimicrobial activities and fulfill an important role in the first line of defense of many organisms. It is becoming increasingly clear that in the animal kingdom the functions of HDPs are not confined to direct antimicrobial actions. Research in mammals has indicated that HDPs have many immunomodulatory functions and are also involved in other physiological processes ranging from development to wound healing. During the past five years our knowledge about avian HDPs has increased considerably. This review addresses our current knowledge on the evolution, regulation and biological functions of HDPs of birds.
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Affiliation(s)
- Tryntsje Cuperus
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
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45
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Selvaraj RK. Avian CD4(+)CD25(+) regulatory T cells: properties and therapeutic applications. Dev Comp Immunol 2013; 41:397-402. [PMID: 23665004 DOI: 10.1016/j.dci.2013.04.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [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: 01/05/2013] [Revised: 04/19/2013] [Accepted: 04/23/2013] [Indexed: 06/02/2023]
Abstract
Regulatory T cells (Tregs) are a subset of T cells that specialize in immune suppression. CD4(+)CD25(+)FoxP3(+) T cells have been characterized as Tregs and extensively studied in mammals. In the absence of a putative FoxP3 ortholog in avians, CD4(+)CD25(+) cells is characterized as Tregs in avians. Avian CD4(+)CD25(+) cells produce high amounts of IL-10, TGF-β, CTLA-4, and LAG-3 mRNA; lack IL-2 mRNA; and suppress T cell proliferation in vitro through both contact-dependent and -independent pathways. Depleting avian CD4(+)CD25(+) cells increases the proliferation of, IL-2 amount, and IFNγ mRNA amount of CD4(+)CD25(-) cells. Avian CD4(+)CD25(+) cells lose their suppressive properties immediately after inflammation and acquire supersuppressive properties once inflammation subsides. Although Treg activity could be beneficial to the host, Tregs simultaneously inhibit host immunity and cause persistent infections of certain pathogens. Therapy targeted toward alleviating Treg mediated immune suppression can improve host immunity against those persistent pathogens and benefit poultry production.
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Affiliation(s)
- Ramesh K Selvaraj
- Department of Animal Sciences, Ohio Agricultural Research and Development Center, Wooster, 44691, United States.
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46
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Straub C, Neulen ML, Sperling B, Windau K, Zechmann M, Jansen CA, Viertlboeck BC, Göbel TW. Chicken NK cell receptors. Dev Comp Immunol 2013; 41:324-333. [PMID: 23542703 DOI: 10.1016/j.dci.2013.03.013] [Citation(s) in RCA: 22] [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] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 03/19/2013] [Accepted: 03/19/2013] [Indexed: 06/02/2023]
Abstract
Natural killer cells are innate immune cells that destroy virally infected or transformed cells. They recognize these altered cells by a plethora of diverse receptors and thereby differ from other lymphocytes that use clonally distributed antigen receptors. To date, several receptor families that play a role in either activating or inhibiting NK cells have been identified in mammals. In the chicken, NK cells have been functionally and morphologically defined, however, a conclusive analysis of receptors involved in NK cell mediated functions has not been available. This is partly due to the low frequencies of NK cells in blood or spleen that has hampered their intensive characterization. Here we will review recent progress regarding the diverse NK cell receptor families, with special emphasis on novel families identified in the chicken genome with potential as chicken NK cell receptors.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/immunology
- Chickens/genetics
- Chickens/immunology
- Gene Expression Regulation
- Genome/immunology
- Immunity, Innate
- Killer Cells, Natural/cytology
- Killer Cells, Natural/immunology
- Lectins, C-Type/classification
- Lectins, C-Type/genetics
- Lectins, C-Type/immunology
- Ligands
- Mammals/immunology
- Phylogeny
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/immunology
- Receptors, Natural Killer Cell/classification
- Receptors, Natural Killer Cell/genetics
- Receptors, Natural Killer Cell/immunology
- Signal Transduction
- Signaling Lymphocytic Activation Molecule Family Member 1
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Affiliation(s)
- Christian Straub
- Institute for Animal Physiology, Department of Veterinary Sciences, University of Munich, Germany
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47
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Magor KE, Miranzo Navarro D, Barber MRW, Petkau K, Fleming-Canepa X, Blyth GAD, Blaine AH. Defense genes missing from the flight division. Dev Comp Immunol 2013; 41:377-88. [PMID: 23624185 PMCID: PMC7172724 DOI: 10.1016/j.dci.2013.04.010] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [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: 03/18/2013] [Accepted: 04/16/2013] [Indexed: 05/12/2023]
Abstract
Birds have a smaller repertoire of immune genes than mammals. In our efforts to study antiviral responses to influenza in avian hosts, we have noted key genes that appear to be missing. As a result, we speculate that birds have impaired detection of viruses and intracellular pathogens. Birds are missing TLR8, a detector for single-stranded RNA. Chickens also lack RIG-I, the intracellular detector for single-stranded viral RNA. Riplet, an activator for RIG-I, is also missing in chickens. IRF3, the nuclear activator of interferon-beta in the RIG-I pathway is missing in birds. Downstream of interferon (IFN) signaling, some of the antiviral effectors are missing, including ISG15, and ISG54 and ISG56 (IFITs). Birds have only three antibody isotypes and IgD is missing. Ducks, but not chickens, make an unusual truncated IgY antibody that is missing the Fc fragment. Chickens have an expanded family of LILR leukocyte receptor genes, called CHIR genes, with hundreds of members, including several that encode IgY Fc receptors. Intriguingly, LILR homologues appear to be missing in ducks, including these IgY Fc receptors. The truncated IgY in ducks, and the duplicated IgY receptor genes in chickens may both have resulted from selective pressure by a pathogen on IgY FcR interactions. Birds have a minimal MHC, and the TAP transport and presentation of peptides on MHC class I is constrained, limiting function. Perhaps removing some constraint, ducks appear to lack tapasin, a chaperone involved in loading peptides on MHC class I. Finally, the absence of lymphotoxin-alpha and beta may account for the observed lack of lymph nodes in birds. As illustrated by these examples, the picture that emerges is some impairment of immune response to viruses in birds, either a cause or consequence of the host-pathogen arms race and long evolutionary relationship of birds and RNA viruses.
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Affiliation(s)
- Katharine E Magor
- Department of Biological Sciences, University of Alberta, Edmonton, Canada.
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48
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Min W, Kim WH, Lillehoj EP, Lillehoj HS. Recent progress in host immunity to avian coccidiosis: IL-17 family cytokines as sentinels of the intestinal mucosa. Dev Comp Immunol 2013; 41:418-428. [PMID: 23583525 DOI: 10.1016/j.dci.2013.04.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [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: 01/11/2013] [Revised: 04/04/2013] [Accepted: 04/04/2013] [Indexed: 06/02/2023]
Abstract
The molecular and cellular mechanisms leading to immune protection against coccidiosis are complex and include multiple aspects of innate and adaptive immunities. Innate immunity is mediated by various subpopulations of immune cells that recognize pathogen associated molecular patterns (PAMPs) through their pattern recognition receptors (PRRs) leading to the secretion of soluble factors with diverse functions. Adaptive immunity, which is important in conferring protection against subsequent reinfections, involves subtypes of T and B lymphocytes that mediate antigen-specific immune responses. Recently, global gene expression microarray analysis has been used in an attempt to dissect this complex network of immune cells and molecules during avian coccidiosis. These new studies emphasized the uniqueness of the innate immune response to Eimeria infection, and directly led to the discovery of previously uncharacterized host genes and proteins whose expression levels were modulated following parasite infection. Among these is the IL-17 family of cytokines. This review highlights recent progress in IL-17 research in the context of host immunity to avian coccidiosis.
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Affiliation(s)
- Wongi Min
- College of Veterinary Medicine and Research Institute of Life Science, Gyeongsang National University, Jinju, Korea
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49
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Keestra AM, de Zoete MR, Bouwman LI, Vaezirad MM, van Putten JPM. Unique features of chicken Toll-like receptors. Dev Comp Immunol 2013; 41:316-323. [PMID: 23628643 DOI: 10.1016/j.dci.2013.04.009] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [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: 01/18/2013] [Accepted: 04/16/2013] [Indexed: 06/02/2023]
Abstract
Toll-like receptors (TLRs) are a major class of innate immune pattern recognition receptors that have a key role in immune homeostasis and the defense against infections. The research explosion that followed the discovery of TLRs more than a decade ago has boosted fundamental knowledge on the function of the immune system and the resistance against disease, providing a rational for clinical modulation of the immune response. In addition, the conserved nature of the ancient TLR system throughout the animal kingdom has enabled a comparative biology approach to understand the evolution, structural architecture, and function of TLRs. In the present review we focus on TLR biology in the avian species, and, especially, on the unique functional properties of the chicken TLR repertoire.
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Affiliation(s)
- A Marijke Keestra
- Department of Infectious Disease & Immunology, Utrecht University, The Netherlands
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50
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Pinheiro A, Woof JM, Abi-Rached L, Parham P, Esteves PJ. Computational analyses of an evolutionary arms race between mammalian immunity mediated by immunoglobulin A and its subversion by bacterial pathogens. PLoS One 2013; 8:e73934. [PMID: 24019941 PMCID: PMC3760800 DOI: 10.1371/journal.pone.0073934] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [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: 05/18/2013] [Accepted: 07/26/2013] [Indexed: 12/19/2022] Open
Abstract
IgA is the predominant immunoglobulin isotype in mucosal tissues and external secretions, playing important roles both in defense against pathogens and in maintenance of commensal microbiota. Considering the complexity of its interactions with the surrounding environment, IgA is a likely target for diversifying or positive selection. To investigate this possibility, the action of natural selection on IgA was examined in depth with six different methods: CODEML from the PAML package and the SLAC, FEL, REL, MEME and FUBAR methods implemented in the Datamonkey webserver. In considering just primate IgA, these analyses show that diversifying selection targeted five positions of the Cα1 and Cα2 domains of IgA. Extending the analysis to include other mammals identified 18 positively selected sites: ten in Cα1, five in Cα2 and three in Cα3. All but one of these positions display variation in polarity and charge. Their structural locations suggest they indirectly influence the conformation of sites on IgA that are critical for interaction with host IgA receptors and also with proteins produced by mucosal pathogens that prevent their elimination by IgA-mediated effector mechanisms. Demonstrating the plasticity of IgA in the evolution of different groups of mammals, only two of the eighteen selected positions in all mammals are included in the five selected positions in primates. That IgA residues subject to positive selection impact sites targeted both by host receptors and subversive pathogen ligands highlights the evolutionary arms race playing out between mammals and pathogens, and further emphasizes the importance of IgA in protection against mucosal pathogens.
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Affiliation(s)
- Ana Pinheiro
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos/InBio Laboratório Associado, Universidade do Porto, Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
- SaBio - Instituto de Investigación en Recursos Cinegéticos (CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Jenny M. Woof
- Division of Cancer Research, Medical Research Institute, University of Dundee Medical School, Ninewells Hospital, Dundee, United Kingdom
| | - Laurent Abi-Rached
- Centre National de la Recherche Scientifique, Laboratoire d’Analyse, Topologie, Probabilités - Unité Mixte de Recherche 7353, Equipe ATIP, Aix-Marseille Université, Marseille, France
| | - Peter Parham
- Department of Structural Biology, Stanford University School of Medicine, Stanford, California, United States of America
| | - Pedro J. Esteves
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos/InBio Laboratório Associado, Universidade do Porto, Vairão, Portugal
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Gandra PRD, Portugal
- * E-mail:
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