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Wang R, Feng Y, Sun M, Jiang Y, Li Z, Cui L, Wei L. MVIL6: Accurate identification of IL-6-induced peptides using multi-view feature learning. Int J Biol Macromol 2023; 246:125412. [PMID: 37327922 DOI: 10.1016/j.ijbiomac.2023.125412] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/11/2023] [Accepted: 06/13/2023] [Indexed: 06/18/2023]
Abstract
Interleukin-6 (IL-6) is a potential therapeutic target for many diseases, and it is of great significance in accurately predicting IL-6-induced peptides for IL-6 research. However, the cost of traditional wet experiments to detect IL-6-induced peptides is huge, and the discovery and design of peptides by computer before the experimental stage have become a promising technology. In this study, we developed a deep learning model called MVIL6 for predicting IL-6-inducing peptides. Comparative results demonstrated the outstanding performance and robustness of MVIL6. Specifically, we employ a pre-trained protein language model MG-BERT and the Transformer model to process two different sequence-based descriptors and integrate them with a fusion module to improve the prediction performance. The ablation experiment demonstrated the effectiveness of our fusion strategy for the two models. In addition, to provide good interpretability of our model, we explored and visualized the amino acids considered important for IL-6-induced peptide prediction by our model. Finally, a case study presented using MVIL6 to predict IL-6-induced peptides in the SARS-CoV-2 spike protein shows that MVIL6 achieves higher performance than existing methods and can be useful for identifying potential IL-6-induced peptides in viral proteins.
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Affiliation(s)
- Ruheng Wang
- School of Software, Shandong University, Jinan, China; Joint SDU-NTU Centre for Artificial Intelligence Research (C-FAIR), Shandong University, Jinan, China
| | - Yangfan Feng
- School of Software, Shandong University, Jinan, China; Joint SDU-NTU Centre for Artificial Intelligence Research (C-FAIR), Shandong University, Jinan, China
| | - Meili Sun
- Beidahuang Industry Group General Hospital, Harbin 150001, China
| | - Yi Jiang
- School of Software, Shandong University, Jinan, China; Joint SDU-NTU Centre for Artificial Intelligence Research (C-FAIR), Shandong University, Jinan, China
| | - Zhongshen Li
- School of Software, Shandong University, Jinan, China; Joint SDU-NTU Centre for Artificial Intelligence Research (C-FAIR), Shandong University, Jinan, China
| | - Lizhen Cui
- School of Software, Shandong University, Jinan, China; Joint SDU-NTU Centre for Artificial Intelligence Research (C-FAIR), Shandong University, Jinan, China
| | - Leyi Wei
- School of Software, Shandong University, Jinan, China; Joint SDU-NTU Centre for Artificial Intelligence Research (C-FAIR), Shandong University, Jinan, China.
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2
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Pacini MF, Balbi CB, Dinatale B, González FB, Prochetto E, De Hernández MA, Cribb P, Farré C, Espariz M, Blancato VS, Magni C, Marcipar I, Pérez AR. Intranasal trans-sialidase-based vaccine against Trypanosoma cruzi triggers a mixed cytokine profile in the nasopharynx-associated lymphoid tissue and confers local and systemic immunogenicity. Acta Trop 2023; 241:106889. [PMID: 36893830 DOI: 10.1016/j.actatropica.2023.106889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/27/2023] [Accepted: 03/05/2023] [Indexed: 03/09/2023]
Abstract
Trypanosoma cruzi, the agent of Chagas disease, can infect through conjunctive or oral mucosas. Therefore, the induction of mucosal immunity by vaccination is relevant not only to trigger local protection but also to stimulate both humoral and cell-mediated responses in systemic sites to control parasite dissemination. In a previous study, we demonstrated that a nasal vaccine based on a Trans-sialidase (TS) fragment plus the mucosal STING agonist c-di-AMP, was highly immunogenic and elicited prophylactic capacity. However, the immune profile induced by TS-based nasal vaccines at the nasopharyngeal-associated lymphoid tissue (NALT), the target site of nasal immunization, remains unknown. Hence, we analyzed the NALT cytokine expression generated by a TS-based vaccine plus c-di-AMP (TSdA+c-di-AMP) and their association with mucosal and systemic immunogenicity. The vaccine was administered intranasally, in 3 doses separated by 15 days each other. Control groups received TSdA, c-di-AMP, or the vehicle in a similar schedule. We demonstrated that female BALB/c mice immunized intranasally with TSdA+c-di-AMP boosted NALT expression of IFN-γ and IL-6, as well as IFN-β and TGF-β. TSdA+c-di-AMP increased TSdA-specific IgA secretion in the nasal passages and also in the distal intestinal mucosa. Moreover, T and B-lymphocytes from NALT-draining cervical lymph nodes and spleen showed an intense proliferation after ex-vivo stimulation with TSdA. Intranasal administration of TSdA+c-di-AMP provokes an enhancement of TSdA-specific IgG2a and IgG1 plasma antibodies, accompanied by an increase IgG2a/IgG1 ratio, indicative of a Th1-biased profile. In addition, immune plasma derived from TSdA+c-di-AMP vaccinated mice exhibit in-vivo and ex-vivo protective capacity. Lastly, TSdA+c-di-AMP nasal vaccine also promotes intense footpad swelling after local TSdA challenge. Our data support that TSdA+c-di-AMP nasal vaccine triggers a NALT mixed pattern of cytokines that were clearly associated with an evident mucosal and systemic immunogenicity. These data are useful for further understanding the immune responses elicited by the NALT following intranasal immunization and the rational design of TS-based vaccination strategies for prophylaxis against T. cruzi.
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Affiliation(s)
- María F Pacini
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET-UNR), Argentina
| | - Camila Bulfoni Balbi
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET-UNR), Argentina
| | - Brenda Dinatale
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET-UNR), Argentina
| | - Florencia B González
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET-UNR), Argentina
| | - Estefania Prochetto
- Laboratorio de Tecnología Inmunológica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Argentina
| | - María A De Hernández
- Área Parasitología, Facultad de Ciencias Bioquímicas y Farmacéuticas, UNR. Laboratorio de Biología y Bioquímica de T. cruzi. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET-UNR), Argentina
| | - Pamela Cribb
- Área Parasitología, Facultad de Ciencias Bioquímicas y Farmacéuticas, UNR. Laboratorio de Biología y Bioquímica de T. cruzi. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET-UNR), Argentina
| | - Cecilia Farré
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET-UNR), Argentina; Centro de Investigación y Producción de Reactivos Biológicos (CIPReB), Facultad de Ciencias Médicas, Universidad Nacional de Rosario, Argentina
| | - Martín Espariz
- Laboratorio de Fisiología y Genética de Bacterias Lácticas. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET-UNR), Argentina
| | - Víctor S Blancato
- Laboratorio de Fisiología y Genética de Bacterias Lácticas. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET-UNR), Argentina
| | - Christian Magni
- Laboratorio de Fisiología y Genética de Bacterias Lácticas. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET-UNR), Argentina
| | - Iván Marcipar
- Laboratorio de Tecnología Inmunológica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Argentina
| | - Ana R Pérez
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER-CONICET-UNR), Argentina; Centro de Investigación y Producción de Reactivos Biológicos (CIPReB), Facultad de Ciencias Médicas, Universidad Nacional de Rosario, Argentina.
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3
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Choi CY, Lee CH, Yang J, Kang SJ, Park IB, Park SW, Lee NY, Hwang HB, Yun HS, Chun T. Efficacies of Potential Probiotic Candidates Isolated from Traditional Fermented Korean Foods in Stimulating Immunoglobulin A Secretion. Food Sci Anim Resour 2023; 43:346-358. [PMID: 36909859 PMCID: PMC9998188 DOI: 10.5851/kosfa.2023.e2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was to evaluate efficacies of selected lactic acid bacteria (LAB) in inducing immunoglobulin A (IgA) secretion. Twenty-five different LAB isolated from traditional fermented Korean foods were characterized for their probiotic properties and screened to identify those that could stimulate lamina propria cells (LPCs) from Peyer's patch to secret IgA in vitro. Among them, four strains (Lactiplantibacillus plantarum CJW55-10, Lactiplantibacillus pentosus CJW18-6, L. pentosus CJW56-11, and Pediococcus acidilactici CJN2696) were found to be strong IgA inducers. The number of IgA positive B cells and soluble IgA level were increased when LPCs were co-cultured with these LAB. Expression levels of toll-like receptor (TLR) such as TLR2 and TLR4 and secretion of interleuckin-6 were augmented in LPCs treated with these LAB. Further, we determined whether oral intake of these LAB enhanced IgA production in vivo. After one-week of daily oral administration, these LAB feed mice increased mucosal IgA and serum IgA. In conclusion, selected strains of LAB could induce systemic IgA secretion by activating lamina propria B cells in Peyer's patch and oral intake of selected strains of LAB can enhance systemic immunity by inducing mucosal IgA secretion.
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Affiliation(s)
- Chang-Yong Choi
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Chang-Hee Lee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Jun Yang
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Seok-Jin Kang
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - In-Byung Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Si-Won Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Na-Young Lee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Hyun-Been Hwang
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | | | - Taehoon Chun
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
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Wang Q, Ma L, An C, Wise SG, Bao S. The role of IL-38 in intestinal diseases - its potential as a therapeutic target. Front Immunol 2022; 13:1051787. [PMID: 36405715 PMCID: PMC9670310 DOI: 10.3389/fimmu.2022.1051787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
IL-38, an anti-inflammatory cytokine, is a key regulator of homeostasis in host immunity. Intestinal immunity plays a critical role in defence against pathogenic invasion, as it is the largest surface organ and the most common entry point for micro-organisms. Dysregulated IL-38 activity is observed in several autoimmune diseases including systemic lupus erythematosus and atherosclerosis. The protective role of IL-38 is well illustrated in experimental colitis models, showing significantly worse colitis in IL-38 deficient mice, compared to wildtype mice. Moreover, exogenous IL-38 has been shown to ameliorate experimental colitis. Surprisingly, upregulated IL-38 is detected in inflamed tissue from inflammatory bowel disease patients, consistent with increased circulating cytokine levels, demonstrating the complex nature of host immunity in vivo. However, colonic IL-38 is significantly reduced in malignant tissues from patients with colorectal cancer (CRC), compared to adjacent non-cancerous tissue. Additionally, IL-38 expression in CRC correlates with 5-year survival, tumour size and differentiation, suggesting IL-38 plays a protective role during the development of CRC. IL-38 is also an independent biomarker for the prognosis of CRC, offering useful information in the management of CRC. Taken together, these data demonstrate the role of IL-38 in the maintenance of normal intestinal mucosal homeostasis, but that dysregulation of IL-38 contributes to initiation of chronic inflammatory bowel disease (resulting from persistent local inflammation), and that IL-38 provides protection during the development of colorectal cancer. Such data provide useful information for the development of novel therapeutic targets in the management of intestinal diseases for more precise medicine.
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Affiliation(s)
- Qiang Wang
- Department of Anatomy, School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Linna Ma
- Department of Pathology, School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
| | - Caiping An
- Department of Haematology and Nephropathy, Gansu Provincial Hospital, Lanzhou, Gansu, China
- *Correspondence: Caiping An, ; Shisan Bao,
| | - Steven G. Wise
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Shisan Bao
- Department of Anatomy, School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, China
- *Correspondence: Caiping An, ; Shisan Bao,
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Webster SE, Vos D, Rothstein TL, Holodick NE. Modulation of microbiome diversity and cytokine expression is influenced in a sex-dependent manner during aging. FRONTIERS IN MICROBIOMES 2022; 1:994464. [PMID: 37426084 PMCID: PMC10328149 DOI: 10.3389/frmbi.2022.994464] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
The microbiome and immune system have a unique interplay, which influences homeostasis within the organism. Both the microbiome and immune system play important roles in health and diseases of the aged including development of cancer, autoimmune disorders, and susceptibility to infection. Various groups have demonstrated divergent changes in the gut microbiota during aging, yet the compounding factor of biological sex within the context of aging remains incompletely understood, and little is known about the effect of housing location in the composition of gut microbiota in the context of both sex and age. To better understand the roles of sex, aging, and location in influencing the gut microbiome, we obtained normal healthy BALB/cByJ mice from a single source and aged male and female mice in two different geographical locations. The 16S rRNA was analyzed from fecal samples of these mice and cytokine levels were measured from serum.16S rRNA microbiome analysis indicated that both age and sex play a role in microbiome composition, whereas location plays a lesser role in the diversity present. Interestingly, microbiome changes occurred with alterations in serum expression of several different cytokines including IL-10 and IL-6, which were also both differentially regulated in context to sex and aging. We found both IL-10 and IL-6 play a role in the constitutive expression of pSTAT-3 in CD5+ B-1 cells, which are known to regulate the microbiome. Additionally, significant correlations were found between cytokine expression and significantly abundant microbes. Based on these results, we conclude aging mice undergo sex-associated alterations in the gut microbiome and have a distinct cytokine profile. Further, there is significant interplay between B-1 cells and the microbiome which is influenced by aging in a sex-dependent manner. Together, these results illustrate the complex interrelationship among sex, aging, immunity, housing location, and the gut microbiome.
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Affiliation(s)
- Sarah E. Webster
- Center for Immunobiology, Department of Investigative Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
| | - Duncan Vos
- Division of Epidemiology and Biostatics, Department of Biomedical Sciences, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
| | - Thomas L. Rothstein
- Center for Immunobiology, Department of Investigative Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
| | - Nichol E. Holodick
- Center for Immunobiology, Department of Investigative Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
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The Combined Escherichia coli Nissle 1917 and Tryptophan Treatment Modulates Immune and Metabolome Responses to Human Rotavirus Infection in a Human Infant Fecal Microbiota-Transplanted Malnourished Gnotobiotic Pig Model. mSphere 2022; 7:e0027022. [PMID: 36073800 PMCID: PMC9599269 DOI: 10.1128/msphere.00270-22] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Human rotavirus (HRV) is a major cause of childhood diarrhea in developing countries where widespread malnutrition contributes to the decreased oral vaccine efficacy and increased prevalence of other enteric infections, which are major concerns for global health. Neonatal gnotobiotic (Gn) piglets closely resemble human infants in their anatomy, physiology, and outbred status, providing a unique model to investigate malnutrition, supplementations, and HRV infection. To understand the molecular signatures associated with immune enhancement and reduced diarrheal severity by Escherichia coli Nissle 1917 (EcN) and tryptophan (TRP), immunological responses and global nontargeted metabolomics and lipidomics approaches were investigated on the plasma and fecal contents of malnourished pigs transplanted with human infant fecal microbiota and infected with virulent (Vir) HRV. Overall, EcN + TRP combined (rather than individual supplement action) promoted greater and balanced immunoregulatory/immunostimulatory responses associated with greater protection against HRV infection and disease in malnourished humanized piglets. Moreover, EcN + TRP treatment upregulated the production of several metabolites with immunoregulatory/immunostimulatory properties: amino acids (N-acetylserotonin, methylacetoacetyl-CoA), lipids (gamma-butyrobetaine, eicosanoids, cholesterol-sulfate, sphinganine/phytosphingosine, leukotriene), organic compound (biliverdin), benzenoids (gentisic acid, aminobenzoic acid), and nucleotides (hypoxathine/inosine/xanthine, cytidine-5'-monophosphate). Additionally, the levels of several proinflammatory metabolites of organic compounds (adenosylhomocysteine, phenylacetylglycine, urobilinogen/coproporphyrinogen) and amino acid (phenylalanine) were reduced following EcN + TRP treatment. These results suggest that the EcN + TRP effects on reducing HRV diarrhea in neonatal Gn pigs were at least in part due to altered metabolites, those involved in lipid, amino acid, benzenoids, organic compounds, and nucleotide metabolism. Identification of these important mechanisms of EcN/TRP prevention of HRV diarrhea provides novel targets for therapeutics development. IMPORTANCE Human rotavirus (HRV) is the most common cause of viral gastroenteritis in children, especially in developing countries, where the efficacy of oral HRV vaccines is reduced. Escherichia coli Nissle 1917 (EcN) is used to treat enteric infections and ulcerative colitis while tryptophan (TRP) is a biomarker of malnutrition, and its supplementation can alleviate intestinal inflammation and normalize intestinal microbiota in malnourished hosts. Supplementation of EcN + TRP to malnourished humanized gnotobiotic piglets enhanced immune responses and resulted in greater protection against HRV infection and diarrhea. Moreover, EcN + TRP supplementation increased the levels of immunoregulatory/immunostimulatory metabolites while decreasing the production of proinflammatory metabolites in plasma and fecal samples. Profiling of immunoregulatory and proinflammatory biomarkers associated with HRV perturbations will aid in the identification of treatments against HRV and other enteric diseases in malnourished children.
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Epipharyngeal Abrasive Therapy (EAT) Reduces the mRNA Expression of Major Proinflammatory Cytokine IL-6 in Chronic Epipharyngitis. Int J Mol Sci 2022; 23:ijms23169205. [PMID: 36012469 PMCID: PMC9409341 DOI: 10.3390/ijms23169205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 11/16/2022] Open
Abstract
The epipharynx, located behind the nasal cavity, is responsible for upper respiratory tract immunity; however, it is also the site of frequent acute and chronic inflammation. Previous reports have suggested that chronic epipharyngitis is involved not only in local symptoms such as cough and postnasal drip, but also in systemic inflammatory diseases such as IgA nephropathy and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and Long COVID. Epipharyngeal Abrasive Therapy (EAT), which is an effective treatment for chronic epipharyngitis in Japan, is reported to be effective for these intractable diseases. The sedation of chronic epipharyngitis by EAT induces suppression of the inflammatory cytokines and improves systemic symptoms, which is considered to be one of the mechanisms, but there is no report that has proved this hypothesis. The purpose of this study was to clarify the anti-inflammatory effect of EAT histologically. The study subjects were 8 patients who were not treated with EAT and 11 patients who were treated with EAT for chronic epipharyngitis for 1 month or more. For immunohistochemical assessment, the expression pattern of IL-6 mRNA, which plays a central role in the human cytokine network, was analyzed using in situ hybridization. The expression of IL-6 in the EAT-treated group was significantly lower than those in the EAT nontreated group (p = 0.0015). In addition, EAT suppressed the expression of tumor necrosis factor alpha (TNFα), a crucial proinflammatory cytokine. As a result, continuous EAT suppressed submucosal cell aggregation and reduced inflammatory cytokines. Thus, EAT may contribute to the improvement of systemic inflammatory diseases through the suppression of IL-6 expression.
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Self-assembled flagella protein nanofibers induce enhanced mucosal immunity. Biomaterials 2022; 288:121733. [PMID: 36038418 DOI: 10.1016/j.biomaterials.2022.121733] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 12/28/2022]
Abstract
Nanofibers are potential vaccines or adjuvants for vaccination at the mucosal interface. However, how their lengths affect the mucosal immunity is not well understood. Using length-tunable flagella (self-assembled from a protein termed flagellin) as model protein nanofibers, we studied the mechanisms of their interaction with mucosal interface to induce immune responses length-dependently. Briefly, through tuning flagellin assembly, length-controlled protein nanofibers were prepared. The shorter nanofibers exhibited more pronounced toll-like receptor 5 (TLR5) and inflammasomes activation accompanied by pyroptosis, as a result of cellular uptake, lysosomal damage, and mitochondrial reactive oxygen species generation. Accordingly, the shorter nanofibers elevated the IgA level in mucosal secretions and enhanced the serum IgG level in ovalbumin-based intranasal vaccinations. These mucosal and systematic antibody responses were correlated with the mucus penetration capacity of the nanofibers. Intranasal administration of vaccines (human papillomavirus type 16 peptides) adjuvanted with shorter nanofibers significantly elicited cytotoxic T lymphocyte responses, strongly inhibiting tumor growth and improving survival rates in a TC-1 cervical cancer model. This work suggests that length-dependent immune responses of nanofibers can be elucidated for designing nanofibrous vaccines and adjuvants for both infectious diseases and cancer.
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Tada R, Honjo E, Muto S, Takayama N, Kiyono H, Kunisawa J, Negishi Y. Role of Interleukin-6 in the Antigen-Specific Mucosal Immunoglobulin A Responses Induced by CpG Oligodeoxynucleotide-Loaded Cationic Liposomes. MEMBRANES 2022; 12:membranes12060635. [PMID: 35736342 PMCID: PMC9228571 DOI: 10.3390/membranes12060635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 11/28/2022]
Abstract
An advantage of mucosal vaccines over conventional parenteral vaccines is that they can induce protective immune responses not only at mucosal surfaces but also in systemic compartments. Despite this advantage, few live attenuated or inactivated mucosal vaccines have been developed and applied clinically. We recently showed that the intranasal immunization of ovalbumin (OVA) with class B synthetic oligodeoxynucleotides (ODNs) containing immunostimulatory CpG motif (CpG ODN)-loaded cationic liposomes synergistically exerted both antigen-specific mucosal immunoglobulin A (IgA) and systemic immunoglobulin G (IgG) responses in mice. However, the mechanism underlying the mucosal adjuvant activity of CpG ODN-loaded liposomes remains unknown. In the present study, we showed that the intranasal administration of CpG ODN-loaded cationic liposomes elicited interleukin (IL)-6 release in nasal tissues. Additionally, pre-treatment with an anti-IL-6 receptor (IL-6R) antibody attenuated antigen-specific nasal IgA production but not serum IgG responses. Furthermore, the intranasal administration of OVA and CpG ODN-loaded cationic liposomes increased the number of IgA+/CD138+ plasma cells and IgA+/B220+ B cells in the nasal passages. This increase was markedly suppressed by pre-treatment with anti-IL-6R blocking antibody. In conclusion, IL-6 released by CpG ODN-loaded cationic liposomes at the site of administration may play a role in the induction of antigen-specific IgA responses by promoting differentiation into IgA+ plasma cells for IgA secretion from B cells.
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Affiliation(s)
- Rui Tada
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan; (E.H.); (S.M.); nori-k0123_suns-@hotmail.co.jp (N.T.); (Y.N.)
- Correspondence: ; Tel.: +81-42-676-3219
| | - Emi Honjo
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan; (E.H.); (S.M.); nori-k0123_suns-@hotmail.co.jp (N.T.); (Y.N.)
| | - Shoko Muto
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan; (E.H.); (S.M.); nori-k0123_suns-@hotmail.co.jp (N.T.); (Y.N.)
| | - Noriko Takayama
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan; (E.H.); (S.M.); nori-k0123_suns-@hotmail.co.jp (N.T.); (Y.N.)
| | - Hiroshi Kiyono
- Division of Mucosal Immunology and International Research and Development Center for Mucosal Vaccines, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; (H.K.); (J.K.)
| | - Jun Kunisawa
- Division of Mucosal Immunology and International Research and Development Center for Mucosal Vaccines, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan; (H.K.); (J.K.)
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka 567-0085, Japan
| | - Yoichi Negishi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan; (E.H.); (S.M.); nori-k0123_suns-@hotmail.co.jp (N.T.); (Y.N.)
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Chung O, Jung YE, Lee KW, An YJ, Kim J, Roh YR, Bhak J, Park K, Weber JA, Cheong J, Cha SS, Lee JH, Yim HS. The Analyses of Cetacean Virus-Responsive Genes Reveal Evolutionary Marks in Mucosal Immunity-Associated Genes. Biochem Genet 2022; 60:2299-2312. [PMID: 35334059 PMCID: PMC8949644 DOI: 10.1007/s10528-022-10221-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 03/09/2022] [Indexed: 11/06/2022]
Abstract
Viruses are the most common and abundant organisms in the marine environment. To better understand how cetaceans have adapted to this virus-rich environment, we compared cetacean virus-responsive genes to those from terrestrial mammals. We identified virus-responsive gene sequences in seven species of cetaceans, which we compared with orthologous sequences in seven terrestrial mammals. As a result of evolution analysis using the branch model and the branch-site model, 21 genes were selected using at least one model. IFN-ε, an antiviral cytokine expressed at mucous membranes, and its receptor IFNAR1 contain cetacean-specific amino acid substitutions that might change the interaction between the two proteins and lead to regulation of the immune system against viruses. Cetacean-specific amino acid substitutions in IL-6, IL-27, and the signal transducer and activator of transcription (STAT)1 are also predicted to alter the mucosal immune response of cetaceans. Since mucosal membranes are the first line of defense against the external environment and are involved in immune tolerance, our analysis of cetacean virus-responsive genes suggests that genes with cetacean-specific mutations in mucosal immunity-related genes play an important role in the protection and/or regulation of immune responses against viruses.
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Affiliation(s)
| | - Ye-Eun Jung
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Kyeong Won Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Busan, 49111, Republic of Korea
| | - Young Jun An
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Busan, 49111, Republic of Korea
| | - Jungeun Kim
- Personal Genomics Institute, Genome Research Foundation, Cheongju, 28160, Republic of Korea
| | - Yoo-Rim Roh
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Busan, 49111, Republic of Korea.,Department of Marine Biotechnology, Korea University of Science and Technology, Daejeon, 306-350, Republic of Korea
| | - Jong Bhak
- Clinomics, Ulsan, 44919, Republic of Korea.,Personal Genomics Institute, Genome Research Foundation, Cheongju, 28160, Republic of Korea.,Department of Biomedical Engineering, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Kiejung Park
- Sangmyung University, Cheonan, 31066, Republic of Korea
| | - Jessica A Weber
- Department of Biology, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Jaehun Cheong
- Department of Molecular Biology, Pusan National University, Busan, 46241, Republic of Korea
| | - Sun-Shin Cha
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Jung-Hyun Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Busan, 49111, Republic of Korea. .,Department of Marine Biotechnology, Korea University of Science and Technology, Daejeon, 306-350, Republic of Korea.
| | - Hyung-Soon Yim
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Busan, 49111, Republic of Korea.
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11
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Tada R, Hidaka A, Tanazawa Y, Ohmi A, Muto S, Ogasawara M, Saito M, Ohshima A, Iwase N, Honjo E, Kiyono H, Kunisawa J, Negishi Y. Role of interleukin-6 in antigen-specific mucosal immunoglobulin A induction by cationic liposomes. Int Immunopharmacol 2021; 101:108280. [PMID: 34710845 PMCID: PMC8553392 DOI: 10.1016/j.intimp.2021.108280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 12/24/2022]
Abstract
The COVID-19 pandemic, caused by a highly virulent and transmissible pathogen, has proven to be devastating to society. Mucosal vaccines that can induce antigen-specific immune responses in both the systemic and mucosal compartments are considered an effective measure to overcome infectious diseases caused by pathogenic microbes. We have recently developed a nasal vaccine system using cationic liposomes composed of 1,2-dioleoyl-3-trimethylammonium-propane and cholesteryl 3β-N-(dimethylaminoethyl)carbamate in mice. However, the comprehensive molecular mechanism(s), especially the host soluble mediator involved in this process, by which cationic liposomes promote antigen-specific mucosal immune responses, remain to be elucidated. Herein, we show that intranasal administration of cationic liposomes elicited interleukin-6 (IL-6) expression at the site of administration. Additionally, both nasal passages and splenocytes from mice nasally immunized with cationic liposomes plus ovalbumin (OVA) were polarized to produce IL-6 when re-stimulated with OVA in vitro. Furthermore, pretreatment with anti-IL-6R antibody, which blocks the biological activities of IL-6, attenuated the production of OVA-specific nasal immunoglobulin A (IgA) but not OVA-specific serum immunoglobulin G (IgG) responses. In this study, we demonstrated that IL-6, exerted by nasally administered cationic liposomes, plays a crucial role in antigen-specific IgA induction.
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Affiliation(s)
- Rui Tada
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan.
| | - Akira Hidaka
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
| | - Yuya Tanazawa
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
| | - Akari Ohmi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
| | - Shoko Muto
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
| | - Miki Ogasawara
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
| | - Momoko Saito
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
| | - Akihiro Ohshima
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
| | - Naoko Iwase
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
| | - Emi Honjo
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
| | - Hiroshi Kiyono
- Division of Mucosal Immunology and International Research and Development Center for Mucosal Vaccines, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, Japan
| | - Jun Kunisawa
- Division of Mucosal Immunology and International Research and Development Center for Mucosal Vaccines, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, Japan; Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), 7-6-8 Saito-Asagi, Ibaraki, Osaka, Japan
| | - Yoichi Negishi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
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12
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Morawska I, Kurkowska S, Bębnowska D, Hrynkiewicz R, Becht R, Michalski A, Piwowarska-Bilska H, Birkenfeld B, Załuska-Ogryzek K, Grywalska E, Roliński J, Niedźwiedzka-Rystwej P. The Epidemiology and Clinical Presentations of Atopic Diseases in Selective IgA Deficiency. J Clin Med 2021; 10:3809. [PMID: 34501259 PMCID: PMC8432128 DOI: 10.3390/jcm10173809] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 12/12/2022] Open
Abstract
Selective IgA deficiency (sIgAD) is the most common primary immunodeficiency disease (PID), with an estimated occurrence from about 1:3000 to even 1:150, depending on population. sIgAD is diagnosed in adults and children after the 4th year of age, with immunoglobulin A level below 0.07 g/L and normal levels of IgM and IgG. Usually, the disease remains undiagnosed throughout the patient's life, due to its frequent asymptomatic course. If symptomatic, sIgAD is connected to more frequent viral and bacterial infections of upper respiratory, urinary, and gastrointestinal tracts, as well as autoimmune and allergic diseases. Interestingly, it may also be associated with other PIDs, such as IgG subclasses deficiency or specific antibodies deficiency. Rarely sIgAD can evolve to common variable immunodeficiency disease (CVID). It should also be remembered that IgA deficiency may occur in the course of other conditions or result from their treatment. It is hypothesized that allergic diseases (e.g., eczema, rhinitis, asthma) are more common in patients diagnosed with this particular PID. Selective IgA deficiency, although usually mildly symptomatic, can be difficult for clinicians. The aim of the study is to summarize the connection between selective IgA deficiency and atopic diseases.
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Affiliation(s)
- Izabela Morawska
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (I.M.); (A.M.); (E.G.); (J.R.)
| | - Sara Kurkowska
- Department of Nuclear Medicine, Pomeranian Medical University, Unii Lubelskiej 1 St., 71-252 Szczecin, Poland; (S.K.); (H.P.-B.); (B.B.)
| | - Dominika Bębnowska
- Institute of Biology, University of Szczecin, Felczaka 3c St., 71-412 Szczecin, Poland; (D.B.); (R.H.)
| | - Rafał Hrynkiewicz
- Institute of Biology, University of Szczecin, Felczaka 3c St., 71-412 Szczecin, Poland; (D.B.); (R.H.)
| | - Rafał Becht
- Clinical Department of Oncology, Chemotherapy and Cancer Immunotherapy, Pomeranian Medical University of Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland;
| | - Adam Michalski
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (I.M.); (A.M.); (E.G.); (J.R.)
| | - Hanna Piwowarska-Bilska
- Department of Nuclear Medicine, Pomeranian Medical University, Unii Lubelskiej 1 St., 71-252 Szczecin, Poland; (S.K.); (H.P.-B.); (B.B.)
| | - Bożena Birkenfeld
- Department of Nuclear Medicine, Pomeranian Medical University, Unii Lubelskiej 1 St., 71-252 Szczecin, Poland; (S.K.); (H.P.-B.); (B.B.)
| | - Katarzyna Załuska-Ogryzek
- Department of Pathophysiology, Medical University of Lublin, Jaczewskiego 8b St., 20-090 Lublin, Poland;
| | - Ewelina Grywalska
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (I.M.); (A.M.); (E.G.); (J.R.)
| | - Jacek Roliński
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, Chodźki 4a St., 20-093 Lublin, Poland; (I.M.); (A.M.); (E.G.); (J.R.)
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13
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Wang Y, Hosomi K, Shimoyama A, Yoshii K, Nagatake T, Fujimoto Y, Kiyono H, Fukase K, Kunisawa J. Lipopolysaccharide Derived From the Lymphoid-Resident Commensal Bacteria Alcaligenes faecalis Functions as an Effective Nasal Adjuvant to Augment IgA Antibody and Th17 Cell Responses. Front Immunol 2021; 12:699349. [PMID: 34276692 PMCID: PMC8281128 DOI: 10.3389/fimmu.2021.699349] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/14/2021] [Indexed: 12/28/2022] Open
Abstract
Alcaligenes spp., including A. faecalis, is a gram-negative facultative bacterium uniquely residing inside the Peyer's patches. We previously showed that A. faecalis-derived lipopolysaccharides (Alcaligenes LPS) acts as a weak agonist of toll-like receptor 4 to activate dendritic cells and shows adjuvant activity by enhancing IgG and Th17 responses to systemic vaccination. Here, we examined the efficacy of Alcaligenes LPS as a nasal vaccine adjuvant. Nasal immunization with ovalbumin (OVA) plus Alcaligenes LPS induced follicular T helper cells and germinal center formation in the nasopharynx-associated lymphoid tissue (NALT) and cervical lymph nodes (CLNs), and consequently enhanced OVA-specific IgA and IgG responses in the respiratory tract and serum. In addition, nasal immunization with OVA plus Alcaligenes LPS induced OVA-specific T cells producing IL-17 and/or IL-10, whereas nasal immunization with OVA plus cholera toxin (CT) induced OVA-specific T cells producing IFN-γ and IL-17, which are recognized as pathogenic type of Th17 cells. In addition, CT, but not Alcaligenes LPS, promoted the production of TNF-α and IL-5 by T cells. Nasal immunization with OVA plus CT, but not Alcaligenes LPS, led to increased numbers of neutrophils and eosinophils in the nasal cavity. Together, these findings indicate that the benign nature of Alcaligenes LPS is an effective nasal vaccine adjuvant that induces antigen-specific mucosal and systemic immune responses without activation of inflammatory cascade after nasal administration.
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Affiliation(s)
- Yunru Wang
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
| | - Koji Hosomi
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Japan
| | - Atsushi Shimoyama
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Japan
- Project Research Center for Fundamental Sciences, Osaka University, Toyonaka, Japan
- Institute for Radiation Sciences, Osaka University, Suita, Japan
| | - Ken Yoshii
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Japan
- Graduate School of Medicine, Osaka University, Suita, Japan
| | - Takahiro Nagatake
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Japan
| | - Yukari Fujimoto
- Department of Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Hiroshi Kiyono
- International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- IMSUT Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Graduate School of Medicine, Chiba University, Chiba, Japan
- Department of Medicine, School of Medicine and CU-UCSD Center for Mucosal Immunology, Allergy and Vaccine, University of California San Diego, La Jolla, CA, United States
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Japan
- Project Research Center for Fundamental Sciences, Osaka University, Toyonaka, Japan
- Institute for Radiation Sciences, Osaka University, Suita, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Japan
- Project Research Center for Fundamental Sciences, Osaka University, Toyonaka, Japan
- Graduate School of Medicine, Osaka University, Suita, Japan
- Graduate School of Dentistry, Osaka University, Suita, Japan
- Department of Microbiology and Immunology, Graduate School of Medicine, Kobe University, Hyogo, Japan
- Research Organization for Nano & Life Innovation, Waseda University, Tokyo, Japan
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14
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Elsner RA, Shlomchik MJ. Germinal Center and Extrafollicular B Cell Responses in Vaccination, Immunity, and Autoimmunity. Immunity 2021; 53:1136-1150. [PMID: 33326765 DOI: 10.1016/j.immuni.2020.11.006] [Citation(s) in RCA: 201] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/19/2020] [Accepted: 11/11/2020] [Indexed: 02/07/2023]
Abstract
Activated B cells participate in either extrafollicular (EF) or germinal center (GC) responses. Canonical responses are composed of a short wave of plasmablasts (PBs) arising from EF sites, followed by GC producing somatically mutated memory B cells (MBC) and long-lived plasma cells. However, somatic hypermutation (SHM) and affinity maturation can take place at both sites, and a substantial fraction of MBC are produced prior to GC formation. Infection responses range from GC responses that persist for months to persistent EF responses with dominant suppression of GCs. Here, we review the current understanding of the functional output of EF and GC responses and the molecular switches promoting them. We discuss the signals that regulate the magnitude and duration of these responses, and outline gaps in knowledge and important areas of inquiry. Understanding such molecular switches will be critical for vaccine development, interpretation of vaccine efficacy and the treatment for autoimmune diseases.
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Affiliation(s)
- Rebecca A Elsner
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15216, USA
| | - Mark J Shlomchik
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA 15216, USA.
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15
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Abstract
IL-6 is involved both in immune responses and in inflammation, hematopoiesis, bone metabolism and embryonic development. IL-6 plays roles in chronic inflammation (closely related to chronic inflammatory diseases, autoimmune diseases and cancer) and even in the cytokine storm of corona virus disease 2019 (COVID-19). Acute inflammation during the immune response and wound healing is a well-controlled response, whereas chronic inflammation and the cytokine storm are uncontrolled inflammatory responses. Non-immune and immune cells, cytokines such as IL-1β, IL-6 and tumor necrosis factor alpha (TNFα) and transcription factors nuclear factor-kappa B (NF-κB) and signal transducer and activator of transcription 3 (STAT3) play central roles in inflammation. Synergistic interactions between NF-κB and STAT3 induce the hyper-activation of NF-κB followed by the production of various inflammatory cytokines. Because IL-6 is an NF-κB target, simultaneous activation of NF-κB and STAT3 in non-immune cells triggers a positive feedback loop of NF-κB activation by the IL-6-STAT3 axis. This positive feedback loop is called the IL-6 amplifier (IL-6 Amp) and is a key player in the local initiation model, which states that local initiators, such as senescence, obesity, stressors, infection, injury and smoking, trigger diseases by promoting interactions between non-immune cells and immune cells. This model counters dogma that holds that autoimmunity and oncogenesis are triggered by the breakdown of tissue-specific immune tolerance and oncogenic mutations, respectively. The IL-6 Amp is activated by a variety of local initiators, demonstrating that the IL-6-STAT3 axis is a critical target for treating diseases.
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Affiliation(s)
- Toshio Hirano
- National Institutes for Quantum and Radiological Science and Technology, Anagawa, Inage-ku, Chiba, Japan
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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16
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Bao SB. Professor Cristobal G dos Remedios mentorship. Biophys Rev 2020; 12:757-759. [PMID: 32661901 DOI: 10.1007/s12551-020-00741-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/09/2020] [Indexed: 01/20/2023] Open
Abstract
As a non-English-speaking PhD student without previous scientific skills, I have been so lucky to be supervised and mentored by Professor Cristobal dos Remedios. In this commentary, I have commented my experience in dos Remedios laboratory. Finally, I would like to express my greatest appreciation to Professor dos Remedios for his kindness and mentorship over the last 31 years. His continuous support, which continues to the present, has been instrumental for the achievement of my current position.
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Affiliation(s)
- Shisan Bob Bao
- Discipline of Pathology, Charles Perkins Centre, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia.
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17
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Liu G, Wang B, Chen Q, Li Y, Li B, Yang N, Yang S, Geng S, Liu G. Interleukin (IL)-21 Promotes the Differentiation of IgA-Producing Plasma Cells in Porcine Peyer's Patches via the JAK-STAT Signaling Pathway. Front Immunol 2020; 11:1303. [PMID: 32655571 PMCID: PMC7324671 DOI: 10.3389/fimmu.2020.01303] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/22/2020] [Indexed: 12/28/2022] Open
Abstract
Secretory IgA is critical to prevent the invasion of pathogens via mucosa. However, the key factors and the mechanisms of IgA generation in the porcine gut are not well-understood. In this study, a panel of factors, including BAFF, APRIL, CD40L, TGF-β1, IL-6, IL-10, IL-17A, and IL-21, were employed to stimulate IgM+ B lymphocytes from porcine ileum Peyer's patches. The results showed that IL-21 significantly upregulated IgA production of B cells and facilitated cell proliferation and differentiation of antibody-secreting cells. In addition, three transcripts in porcine IgA class switch recombination (CSR), germ-line transcript α, post-switch transcript α, and circle transcript α, were first amplified by (nest-)PCR and sequenced. All these key indicators of IgA CSR were upregulated by IL-21 treatment. Furthermore, we found that IL-21 predominantly activated JAK1, STAT1, and STAT3 proteins and confirmed that the JAK-STAT signaling pathway was involved in porcine IgA CSR. Thus, IL-21 plays an important role in the proliferation and differentiation of IgA-secreting cells in porcine Peyer's patches through the JAK-STAT signaling pathway. These findings provide insights into the mucosal vaccine design by regulation of IL-21 for the prevention and control of enteric pathogens in the pig industry.
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Affiliation(s)
- Guo Liu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Bin Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Qingbo Chen
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Yang Li
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Baoyu Li
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Ning Yang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Shanshan Yang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Shuxian Geng
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Guangliang Liu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
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18
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Kim MJ, Lee SH, Kang HJ, Chu KB, Park H, Jin H, Moon EK, Kim SS, Quan FS. Virus-like particle vaccine displaying Toxoplasma gondii apical membrane antigen 1 induces protection against T. gondii ME49 infection in mice. Microb Pathog 2020; 142:104090. [PMID: 32097746 DOI: 10.1016/j.micpath.2020.104090] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/19/2020] [Accepted: 02/19/2020] [Indexed: 01/13/2023]
Abstract
Toxoplasmosis is an intracellular parasitic disease caused by the protozoa Toxoplasma gondii, which affects about half of the world's population. In spite of the strenuous endeavors, a T. gondii vaccine for clinical use remains unreported to date. In the present study, we generated virus-like particles (VLPs) containing T. gondii apical membrane antigen 1 (AMA1) and assessed its efficacy in a murine model. VLPs were characterized using western blot and TEM. T. gondii-specific IgG and IgA antibody responses in sera, germinal center B cell responses in spleen, brain cyst counts and their sizes were determined. Elevated T. gondii-specific IgG and IgA antibody responses were observed from the sera of AMA1 VLP-immunized mice. Immunization with AMA1 VLPs enhanced T. gondii-specific antibody-secreting cell responses and germinal center B cell responses upon antigen stimulation. Brain tissue analysis revealed that AMA1 VLP-immunization reduced cyst formation and its size compared to control. Also, VLP-immunized mice were less susceptible to body weight loss and displayed enhanced survival rate compared to the control group. Our results demonstrated that the immune response induced by T. gondii AMA1 VLPs confer partial protection against T. gondii infection and provides important insight into potential T. gondii vaccine design strategy.
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Affiliation(s)
- Min-Ju Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Su-Hwa Lee
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hae-Ji Kang
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Ki-Back Chu
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyunwoo Park
- Health Park Co., Ltd, Seoul, 06627, Republic of Korea
| | - Hui Jin
- Health Park Co., Ltd, Seoul, 06627, Republic of Korea
| | - Eun-Kyung Moon
- Department of Medical Zoology, Kyung Hee University School of Medicine, Seoul, 02447, Republic of Korea
| | - Sung Soo Kim
- Department of Biochemistry and Molecular Biology, Kyung Hee University School of Medicine, Seoul, 02447, Republic of Korea; Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Fu-Shi Quan
- Department of Medical Zoology, Kyung Hee University School of Medicine, Seoul, 02447, Republic of Korea; Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea.
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19
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Arshad S, Naveed M, Ullia M, Javed K, Butt A, Khawar M, Amjad F. Targeting STAT-3 signaling pathway in cancer for development of novel drugs: Advancements and challenges. Genet Mol Biol 2020; 43:e20180160. [PMID: 32167126 PMCID: PMC7198026 DOI: 10.1590/1678-4685-gmb-2018-0160] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 10/20/2018] [Indexed: 12/25/2022] Open
Abstract
Signal transducers and activators of transcription 3 (STAT-3) is a transcription
factor that regulates the gene expression of several target genes. These factors
are activated by the binding of cytokines and growth factors with STAT-3
specific receptors on cell membrane. Few years ago, STAT-3 was considered an
acute phase response element having several cellular functions such as
inflammation, cell survival, invasion, metastasis and proliferation, genetic
alteration, and angiogenesis. STAT-3 is activated by several types of
inflammatory cytokines, carcinogens, viruses, growth factors, and oncogenes.
Thus, the STAT3 pathway is a potential target for cancer therapeutics. Abnormal
STAT-3 activity in tumor development and cellular transformation can be targeted
by several genomic and pharmacological methodologies. An extensive review of the
literature has been conducted to emphasize the role of STAT-3 as a unique cancer
drug target. This review article discusses in detail the wide range of STAT-3
inhibitors that show antitumor effects both in vitro and
in vivo. Thus, targeting constitutive STAT-3 signaling is a
remarkable therapeutic methodology for tumor progression. Finally, current
limitations, trials and future perspectives of STAT-3 inhibitors are also
critically discussed.
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Affiliation(s)
- Sundas Arshad
- University of Lahore, Department of Allied Health Sciences, Gujrat Campus, Pakistan
| | - Muhammad Naveed
- University of Central Punjab, Faculty of life sciences, Department of Biotechnology, Lahore, Pakistan
| | - Mahad Ullia
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
| | - Khadija Javed
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
| | - Ayesha Butt
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
| | - Masooma Khawar
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
| | - Fazeeha Amjad
- University of Gujrat, Department of Biochemistry and Biotechnology Sialkot sub Campus, Pakistan
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Swain S, Selmi C, Gershwin ME, Teuber SS. The clinical implications of selective IgA deficiency. J Transl Autoimmun 2019; 2:100025. [PMID: 32743511 PMCID: PMC7388344 DOI: 10.1016/j.jtauto.2019.100025] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 11/21/2019] [Indexed: 01/06/2023] Open
Abstract
Selective IgA deficiency (SIgAD) is the most common primary immunodeficiency but does not always result in clinical disease. This may in part be due to the definition based on serum IgA, while most IgA is secreted at mucosal surfaces, not amenable to measurement. Clinical complications include increased risk of sinopulmonary infections with bacteria and viruses, gastrointestinal infections with a predilection for Giardia lamblia, a myriad of autoimmune diseases including systemic lupus erythematosus, hyper- and hypo-thyroidism, Type 1 diabetes, celiac disease, and rarely, malignancy. SIgAD must be differentiated from IgA deficiency that may be seen with IgG2 or IgG4 deficiency, specific antibody deficiency, or as an early manifestation prior to a diagnosis of common variable immunodeficiency. Secondary IgA deficiency is increasingly recognized and may be due to medications such as anti-epileptics, or antibiotics with disruption of the microbiome which can influence IgA levels, infections or malignancies. Patients with SIgAD should be monitored at regular intervals and educated to be aware of particular complications. There is a rare chance of development of anti-IgA IgE antibodies in patients with complete deficiency, which can result in anaphylaxis if blood products with IgA are administered. Prophylactic antibiotics may be indicated in some cases, and very rarely, supplemental IgG infusions.
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Affiliation(s)
- Samantha Swain
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, CA, USA
- Veterans Affairs Northern California Healthcare System, Mather, CA, USA
| | - Carlo Selmi
- Rheumatology and Clinical Immunology, Humanitas Research Hospital, Rozzano, Milan, Italy
- BIOMETRA Department, University of Milan, Milan, Italy
| | - M. Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, CA, USA
| | - Suzanne S. Teuber
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, CA, USA
- Veterans Affairs Northern California Healthcare System, Mather, CA, USA
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TLR9 activation induces aberrant IgA glycosylation via APRIL- and IL-6-mediated pathways in IgA nephropathy. Kidney Int 2019; 97:340-349. [PMID: 31748116 DOI: 10.1016/j.kint.2019.08.022] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 07/30/2019] [Accepted: 08/16/2019] [Indexed: 12/13/2022]
Abstract
Galactose-deficient IgA1 (Gd-IgA1) plays a crucial role in the development of IgA nephropathy (IgAN). However, the pathogenic mechanisms driving Gd-IgA1 production have not been fully elucidated. Innate-immune activation via Toll-like receptor 9 (TLR9) is known to be involved in Gd-IgA1 production. A proliferation inducing ligand (APRIL) and IL-6 are also known to enhance Gd-IgA1 synthesis in IgAN. With this as background, we investigated how TLR9 activation in IgA secreting cells results in overproduction of nephritogenic IgA in the IgAN-prone ddY mouse and in human IgA1-secreting cells. Injection of the TLR9 ligand CpG-oligonucleotides increased production of aberrantly glycosylated IgA and IgG-IgA immune complexes in ddY mice that, in turn, exacerbated kidney injury. CpG-oligonucleotide-stimulated mice had elevated serum levels of APRIL that correlated with those of aberrantly glycosylated IgA and IgG-IgA immune complexes. In vitro, TLR9 activation enhanced production of the nephritogenic IgA as well as APRIL and IL-6 in splenocytes of ddY mice and in human IgA1-secreting cells. However, siRNA knock-down of APRIL completely suppressed overproduction of Gd-IgA1 induced by IL-6. Neutralization of IL-6 decreased CpG-oligonucleotide-induced overproduction of Gd-IgA1. Furthermore, APRIL and IL-6 pathways each independently mediated TLR9-induced overproduction of Gd-IgA1. Thus, TLR9 activation enhanced synthesis of aberrantly glycosylated IgA that, in a mouse model of IgAN, further enhanced kidney injury. Hence, APRIL and IL-6 synergistically, as well as independently, enhance synthesis of Gd-IgA1.
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Furuuchi K, Morimoto K, Fujiwara K, Tanaka Y, Takemura T, Kurashima A, Yoshimori K, Ohta K, Sasaki Y. Mycobacterium avium Complex Pleuritis with Elevated Anti-glycopeptidolipid-core IgA Antibody Levels in Pleural Effusion. Intern Med 2019; 58:2577-2579. [PMID: 31118400 PMCID: PMC6761339 DOI: 10.2169/internalmedicine.2751-19] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Pleuritis caused by nontuberculous mycobacteria is uncommon and difficult to diagnose. We herein report a case of Mycobacterium avium complex (MAC) pleuritis with elevated anti-glycopeptidolipid (GPL)-core IgA antibody levels in the pleural effusion. A 73-year-old woman with MAC pulmonary disease presented with massive left pleural effusion. A pleural biopsy by video-assisted thoracoscopic surgery was performed, revealing many noncaseating epithelioid cell granulomas. MAC was not identified by culture of the pleural effusion or specimens, but the anti-GPL-core IgA antibody level was markedly elevated in the pleural effusion. Measurement of anti-GPL-core IgA levels in the pleural fluid may be useful for diagnosing MAC pleuritis.
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Affiliation(s)
- Koji Furuuchi
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Kozo Morimoto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
- Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Keiji Fujiwara
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Yoshiaki Tanaka
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Tamiko Takemura
- Department of Pathology, Japan Red Cross Hospital Medical Center, Japan
| | - Atsuyuki Kurashima
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Kozo Yoshimori
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Ken Ohta
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| | - Yuka Sasaki
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
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Murakami M, Kamimura D, Hirano T. Pleiotropy and Specificity: Insights from the Interleukin 6 Family of Cytokines. Immunity 2019; 50:812-831. [DOI: 10.1016/j.immuni.2019.03.027] [Citation(s) in RCA: 231] [Impact Index Per Article: 46.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/25/2019] [Accepted: 03/26/2019] [Indexed: 02/08/2023]
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24
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IgA Responses to Microbiota. Immunity 2019; 49:211-224. [PMID: 30134201 DOI: 10.1016/j.immuni.2018.08.011] [Citation(s) in RCA: 196] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/03/2018] [Accepted: 08/06/2018] [Indexed: 12/12/2022]
Abstract
Various immune mechanisms are deployed in the mucosa to confront the immense diversity of resident bacteria. A substantial fraction of the commensal microbiota is coated with immunoglobulin A (IgA) antibodies, and recent findings have established the identities of these bacteria under homeostatic and disease conditions. Here we review the current understanding of IgA biology, and present a framework wherein two distinct types of humoral immunity coexist in the gastrointestinal mucosa. Homeostatic IgA responses employ a polyreactive repertoire to bind a broad but taxonomically distinct subset of microbiota. In contrast, mucosal pathogens and vaccines elicit high-affinity, T cell-dependent antibody responses. This model raises fundamental questions including how polyreactive IgA specificities are generated, how these antibodies exert effector functions, and how they exist together with other immune responses during homeostasis and disease.
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25
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Jones SA, Jenkins BJ. Recent insights into targeting the IL-6 cytokine family in inflammatory diseases and cancer. Nat Rev Immunol 2018; 18:773-789. [DOI: 10.1038/s41577-018-0066-7] [Citation(s) in RCA: 435] [Impact Index Per Article: 72.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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26
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Lymphoid tissue-resident Alcaligenes LPS induces IgA production without excessive inflammatory responses via weak TLR4 agonist activity. Mucosal Immunol 2018; 11:693-702. [PMID: 29411777 DOI: 10.1038/mi.2017.103] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 10/12/2017] [Indexed: 02/04/2023]
Abstract
Alcaligenes are opportunistic commensal bacteria that reside in gut-associated lymphoid tissues such as Peyer's patches (PPs); however, how they create and maintain their homeostatic environment, without inducing an excessive inflammatory response remained unclear. We show here that Alcaligenes-derived lipopolysaccharide (Alcaligenes LPS) acts as a weak agonist of toll-like receptor 4 and promotes IL-6 production from dendritic cells, which consequently enhances IgA production. The inflammatory activity of Alcaligenes LPS was weaker than that of Escherichia coli-derived LPS and therefore no excessive inflammation was induced by Alcaligenes LPS in vitro or in vivo. Alcaligenes LPS also showed adjuvanticity, inducing antigen-specific immune responses without excessive inflammation. These findings reveal the presence of commensal bacteria-mediated homeostatic inflammatory conditions within PPs that produce optimal IgA induction without causing pathogenic inflammation and suggest that Alcaligenes LPS could be a safe and potent adjuvant.
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27
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Murphy J, Ramezanpour M, Stach N, Dubin G, Psaltis AJ, Wormald PJ, Vreugde S. Staphylococcus Aureus V8 protease disrupts the integrity of the airway epithelial barrier and impairs IL-6 production in vitro. Laryngoscope 2017; 128:E8-E15. [PMID: 28994126 DOI: 10.1002/lary.26949] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 09/03/2017] [Accepted: 09/07/2017] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Staphylococcus aureus (S. aureus) infection is known to contribute to the severity and recalcitrance of chronic rhinosinusitis (CRS), and its secreted products have been shown to alter the airway barrier. Extracellular proteases secreted by S. aureus are thought to be important in epithelial infection and immune evasion; however, their effect on airway mucosal barrier function is not known. METHODS To investigate the impact of extracellular proteases on airway epithelial integrity, the purified S. aureus proteases V8 protease, Staphopain A, Staphopain B, Exfoliative toxin A, and serine protease-like A-F were applied to human nasal epithelial cell air-liquid interface (HNEC-ALI) cultures. Transepithelial electrical resistance (TEER), permeability (Papp) measurements, and immuno-localization of the tight junction proteins claudin-1 and ZO-1 were used to assess barrier integrity. Effects of the proteases on inflammation and cell viability were measured using interleukin-6 (IL-6) ELISA and a lactate dehydrogenase assay. RESULTS Application of V8 protease to HNEC-ALI cultures caused a significant concentration and time-dependent decrease in TEER (22.67%, P < 0.0001), a reciprocal Papp increase (20.14-fold, P < 0.05), and a discontinuous ZO-1 immuno-localization compared to control. IL-6 production was significantly reduced in V8 protease-treated cells (153.5 pg/mL, P = 0.0069) compared to control (548.3 pg/mL), whereas no difference in cell viability was observed. CONCLUSION S. aureus V8 protease causes dysfunction of mucosal barrier structure and function indicative of a leaky barrier. A reduction in IL-6 levels suggests that the mucosal immunity is impaired by this protease and thus has the potential to contribute to CRS recalcitrance. LEVEL OF EVIDENCE NA. Laryngoscope, 128:E8-E15, 2018.
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Affiliation(s)
- Jae Murphy
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Woodville South, SA, Australia
| | - Mahnaz Ramezanpour
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Woodville South, SA, Australia
| | - Natalia Stach
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.,Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Grzegorz Dubin
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.,Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Alkis James Psaltis
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Woodville South, SA, Australia
| | - Peter-John Wormald
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Woodville South, SA, Australia
| | - Sarah Vreugde
- Department of Surgery-Otolaryngology, Head and Neck Surgery, The University of Adelaide, Woodville South, SA, Australia
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28
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Mei HE, Hahne S, Redlin A, Hoyer BF, Wu K, Baganz L, Lisney AR, Alexander T, Rudolph B, Dörner T. Plasmablasts With a Mucosal Phenotype Contribute to Plasmacytosis in Systemic Lupus Erythematosus. Arthritis Rheumatol 2017. [DOI: 10.1002/art.40181] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Henrik E. Mei
- Charité University Medicine Berlin and German Rheumatism Research Center Berlin; Berlin Germany
| | - Stefanie Hahne
- Charité University Medicine Berlin and German Rheumatism Research Center Berlin; Berlin Germany
| | - Andreas Redlin
- Charité University Medicine Berlin and German Rheumatism Research Center Berlin; Berlin Germany
| | - Bimba F. Hoyer
- Charité University Medicine Berlin and German Rheumatism Research Center Berlin; Berlin Germany
| | - Kaiyin Wu
- Charité University Medicine Berlin; Berlin Germany
| | - Lisa Baganz
- German Rheumatism Research Center Berlin; Berlin Germany
| | - Anna R. Lisney
- Charité University Medicine Berlin and German Rheumatism Research Center Berlin; Berlin Germany
| | - Tobias Alexander
- Charité University Medicine Berlin and German Rheumatism Research Center Berlin; Berlin Germany
| | | | - Thomas Dörner
- Charité University Medicine Berlin and German Rheumatism Research Center Berlin; Berlin Germany
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29
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Bacterial flagellin-a potent immunomodulatory agent. Exp Mol Med 2017; 49:e373. [PMID: 28860663 PMCID: PMC5628280 DOI: 10.1038/emm.2017.172] [Citation(s) in RCA: 193] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 04/23/2017] [Accepted: 05/01/2017] [Indexed: 01/07/2023] Open
Abstract
Flagellin is a subunit protein of the flagellum, a whip-like appendage that enables bacterial motility. Traditionally, flagellin was viewed as a virulence factor that contributes to the adhesion and invasion of host cells, but now it has emerged as a potent immune activator, shaping both the innate and adaptive arms of immunity during microbial infections. In this review, we summarize our understanding of bacterial flagellin and host immune system interactions and the role flagellin as an adjuvant, anti-tumor and radioprotective agent, and we address important areas of future research interests.
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30
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Critical role of TSLP-responsive mucosal dendritic cells in the induction of nasal antigen-specific IgA response. Mucosal Immunol 2017; 10:901-911. [PMID: 27924821 DOI: 10.1038/mi.2016.103] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 10/09/2016] [Indexed: 02/04/2023]
Abstract
Thymic stromal lymphopoietin (TSLP) is an interleukin-7 (IL-7)-like cytokine involved in T helper 2 type immune responses. The primary target of TSLP is myeloid dendritic cells (DCs), however, little is known about the mechanism by which TSLP elicits respiratory IgA immune responses upon mucosal immunization. Here, we found that the levels of TSLP and TSLPR were upregulated in the mucosal DCs of mice nasally immunized with pneumococcal surface protein A (PspA) plus cholera toxin (CT) compared with those immunized with PspA alone. PspA-specific IgA responses, but not IgG Ab responses were significantly reduced in both serum and mucosal secretions of TSLPR knockout mice compared with wild-type mice after nasal immunization with PspA plus CT. Furthermore, CD11c+ mucosal DCs isolated from TSLPR knockout mice nasally immunized with PspA plus CT were less activated and exhibited markedly reduced expression of IgA-enhancing cytokines (e.g., APRIL, BAFF, and IL-6) compared with those from equivalently immunized wild-type mice. Finally, exogenous TSLP promoted production of IgAs in an in vitro DC-B cell co-culture system as exhibited by enhanced IL-6 production. These results suggest that TSLP-TSLPR signaling is pivotal in the induction of nasal respiratory immunity against pathogenic pneumococcal infection.
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Abstract
Bacterial ghosts (BG) are empty cell envelopes derived from Gram-negative bacteria. They contain many innate immunostimulatory agonists, and are potent activators of a broad range of cell types involved in innate and adaptive immunity. Several considerable studies have demonstrated the effectiveness of BG as adjuvants as well as their ability to induce proinflammatory cytokine production by a range of immune and non-immune cell types. These proinflammatory cytokines trigger a generalized recruitment of T and B lymphocytes to lymph nodes that maximize the chances of encounter with their cognate antigen, and subsequent elicitation of potent immune responses. The plasticity of BG has allowed for the generation of envelope-bound foreign antigens in immunologically active forms that have proven to be effective vaccines in animal models. Besides their adjuvant property, BG also effectively deliver DNA-encoded antigens to dendritic cells, thereby leading to high transfection efficiencies, which subsequently result in higher gene expressions and improved immunogenicity of DNA-based vaccines. In this review, we summarize our understanding of BG interactions with the host immune system, their exploitation as an adjuvant and a delivery system, and address important areas of future research interest.
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Affiliation(s)
- Irshad A Hajam
- College of Veterinary Medicine, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Pervaiz A Dar
- Department of Medicine, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, 43614, USA
| | - Gayeon Won
- College of Veterinary Medicine, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - John Hwa Lee
- College of Veterinary Medicine, Chonbuk National University, Iksan, 54596, Republic of Korea.
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Improved lysis efficiency and immunogenicity of Salmonella ghosts mediated by co-expression of λ phage holin-endolysin and ɸX174 gene E. Sci Rep 2017; 7:45139. [PMID: 28332591 PMCID: PMC5362813 DOI: 10.1038/srep45139] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 02/15/2017] [Indexed: 12/19/2022] Open
Abstract
Bacterial ghosts (BGs) are empty cell envelopes derived from Gram-negative bacteria by bacteriophage ɸX174 gene E mediated lysis. They represent a novel inactivated vaccine platform; however, the practical application of BGs for human vaccines seems to be limited due to the safety concerns on the presence of viable cells in BGs. Therefore, to improve the lysis efficiency of the gene E, we exploited the peptidoglycan hydrolyzing ability of the λ phage holin-endolysins to expedite the process of current BG production system. In this report, we constructed a novel ghost plasmid encoding protein E and holin-endolysins in tandem. We observed that sequential expressions of the gene E and the holin-endolysins elicited rapid and highly efficient Salmonella lysis compared to the lysis mediated by gene E only. These lysed BGs displayed improved immunogenicity in mice compared to the gene E mediated BGs. Consequently, seventy percent of the mice immunized with these novel ghosts survived against a lethal challenge while all the mice vaccinated with gene E mediated ghosts died by day 9 post-infection. We conclude that this novel strategy has the potential to generate highly efficient inactivated candidate vaccines that could replace the currently available bacterial vaccines.
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Yazdani R, Azizi G, Abolhassani H, Aghamohammadi A. Selective IgA Deficiency: Epidemiology, Pathogenesis, Clinical Phenotype, Diagnosis, Prognosis and Management. Scand J Immunol 2017; 85:3-12. [PMID: 27763681 DOI: 10.1111/sji.12499] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 10/18/2016] [Indexed: 12/30/2022]
Abstract
Selective immunoglobulin A deficiency (SIgAD) is the most common primary antibody deficiency. Although more patients with SIgAD are asymptomatic, selected patients suffer from different clinical complications such as pulmonary infections, allergies, autoimmune diseases, gastrointestinal disorders and malignancy. Pathogenesis of SIgAD is still unknown; however, a defective terminal differentiation of B cells and defect in switching to IgA-producing plasma cells are presumed to be responsible. Furthermore, some cytogenic defects and monogenic mutations are associated with SIgAD. There is no specific treatment for patients with symptomatic IgA deficiency, although prophylactic antibiotic therapy along with circumstantial immunoglobulin replacement with justification and supportive care (using a product that contains minimal IgA) could be helpful for patients with a severe phenotype. The epidemiology, pathogenesis, clinical phenotype, diagnosis, prognosis, management and treatment in patients with SIgAD have been reviewed.
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Affiliation(s)
- R Yazdani
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,Molecular Immunology Interest Group (MIIG), Universal Scientific Education and Research Network (USERN), Isfahan, Iran
| | - G Azizi
- Imam Hassan Mojtaba Hospital, Alborz University of Medical Sciences, Karaj, Iran.,Research Center for Immunodeficiencies, Tehran University of Medical Sciences, Tehran, Iran
| | - H Abolhassani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,Division of Clinical Immunology, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - A Aghamohammadi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Zhang S, Zhang X, Yin K, Li T, Bao Y, Chen Z. Variation and significance of secretory immunoglobulin A, interleukin 6 and dendritic cells in oral cancer. Oncol Lett 2017; 13:2297-2303. [PMID: 28454394 PMCID: PMC5403296 DOI: 10.3892/ol.2017.5703] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 12/02/2016] [Indexed: 11/16/2022] Open
Abstract
The present study aimed to determine changes in the concentration of secretory immunoglobulin A (SIgA) and interleukin 6 (IL-6) in the saliva of patients with oral cancer, to evaluate the abnormal expression of cluster of differentiation (CD) 1a, CD83, CD80 and CD86 on dendritic cells (DCs) of oral cancer tissues and to discuss the interaction between SIgA, IL-6 and DCs in oral cancer. A total of 40 patients between 27 and 70 years of age, median age 52 years, with primary oral cancer were enrolled in the present study, and a group of 20 healthy male and female volunteers was used as the control group. The concentration of SIgA and IL-6 in the saliva of the preoperative patients was determined by ELISA. The expression levels of CD1a, CD83, CD80 and CD86 were detected by immunohistochemistry and flow cytometry, which was performed on histopathological sections from paraffin-embedded tumor and corresponding adjacent control tissues. The specimens were assessed using the semi-quantitative immunoreactive score (IRS). The concentration of SIgA in the saliva from patients with oral cancer decreased, whereas the IL-6 level significantly increased compared with the control subjects (P<0.05). In addition, the decrease of SIgA level and increase of IL-6 level exhibited a negative correlation (r=−0.543, P<0.05). According to the IRS score, the expression levels of CD1a, CD83, CD80 and CD86 in the cancer tissue were lower than the expression levels of the control group (P<0.05). Furthermore, the expression of CD80 and CD86 exhibited no correlation with histological grade or pathological type (P>0.05), but exhibited a negative correlation with clinical stage and lymph node metastasis (P<0.05). The concentration of SIgA and IL-6 in saliva may be used as an auxiliary diagnostic indicator for oral cancer. The detection of CD80 and CD86 expressed on DCs in oral cancer tissue may be useful for the diagnosis and evaluation of the prognosis of tumors. The present study hypothesized that the use of SIgA vaccines or IL-6 inhibitors may be useful for reversing the immune deficiency associated with DCs in oral cancer.
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Affiliation(s)
- Suxin Zhang
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Xin Zhang
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Ke Yin
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Tianke Li
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Yang Bao
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Zhong Chen
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
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35
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Expression of interleukin-6 by a recombinant rabies virus enhances its immunogenicity as a potential vaccine. Vaccine 2017; 35:938-944. [DOI: 10.1016/j.vaccine.2016.12.069] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 12/20/2016] [Accepted: 12/20/2016] [Indexed: 11/13/2022]
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Garg R, Theaker M, Martinez EC, van Drunen Littel-van den Hurk S. A single intranasal immunization with a subunit vaccine formulation induces higher mucosal IgA production than live respiratory syncytial virus. Virology 2016; 499:288-297. [DOI: 10.1016/j.virol.2016.09.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/18/2016] [Accepted: 09/23/2016] [Indexed: 12/17/2022]
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Wani K, Maliekal M, Fairfax MR, Rajkumar R, Talluri N, Cox H, Woldt E, Chouthai NS. Effects of maternal medication use on NGF and IL-6 levels in human breast milk. J Matern Fetal Neonatal Med 2016; 30:2287-2290. [PMID: 27734743 DOI: 10.1080/14767058.2016.1247152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND The objective of this study was to evaluate the effect of maternal medications on nerve growth factor (NGF) and interleukin-6 (IL-6) levels in human breast milk (HBM). METHODS A total of 30 samples of HBM were collected after consent from consecutively born term newborns. NGF and IL-6 concentrations were analyzed using ELISA assays from R&D Systems. The HBM samples were centrifuged, and the clear portion of the HBM after discarding the fat was analyzed and cytokine data were expressed as NGFC or IL-6C. Ten samples of HBM, which were not centrifuged, were also used in ELISA assays and cytokine data were expressed as NGFF or IL-6F. RESULTS After exposure to NSAIDs (7636 ± 9610, mean ± SD, pg/mL), the NGFC levels in HBM were significantly higher as compared to those who were exposed to narcotics (522 ± 1000) (p = 0.008). NGFC and IL-6C levels positively correlated with each other in HBM (R = 0.194 p < 0.0001). NGFC levels (360 ± 237) were significantly lower than NGFF levels (888 ± 751) (p < 0.0001). IL-6F was higher than IL-6C levels without statistical significance. CONCLUSION Further studies are warranted to elucidate effect of maternal medications on cytokine changes in HBM and effect of these cytokine changes on newborn gastrointestinal milieu.
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Affiliation(s)
- Kashmira Wani
- a College of Liberal Arts and Sciences, School of Medicine , Wayne State University , Detroit , MI , USA.,b Carmen and Ann Adams Department of Pediatrics , Division of Neonatal and Perinatal Medicine, School of Medicine, Wayne State University , Detroit , MI , USA
| | - Maya Maliekal
- a College of Liberal Arts and Sciences, School of Medicine , Wayne State University , Detroit , MI , USA.,b Carmen and Ann Adams Department of Pediatrics , Division of Neonatal and Perinatal Medicine, School of Medicine, Wayne State University , Detroit , MI , USA
| | - Marilynn R Fairfax
- c DMC University Laboratories , Detroit , MI , USA.,d Department of Pathology, School of Medicine , Wayne State University , Detroit , MI , USA
| | - Rahul Rajkumar
- b Carmen and Ann Adams Department of Pediatrics , Division of Neonatal and Perinatal Medicine, School of Medicine, Wayne State University , Detroit , MI , USA
| | - Navya Talluri
- b Carmen and Ann Adams Department of Pediatrics , Division of Neonatal and Perinatal Medicine, School of Medicine, Wayne State University , Detroit , MI , USA.,e College of Osteopathic Medicine , Michigan State University , Detroit , MI , USA , and
| | - Holly Cox
- b Carmen and Ann Adams Department of Pediatrics , Division of Neonatal and Perinatal Medicine, School of Medicine, Wayne State University , Detroit , MI , USA.,f College of Nursing, School of Medicine , Wayne State University , Detroit , MI , USA
| | - Eunice Woldt
- b Carmen and Ann Adams Department of Pediatrics , Division of Neonatal and Perinatal Medicine, School of Medicine, Wayne State University , Detroit , MI , USA
| | - Nitin Shasikant Chouthai
- b Carmen and Ann Adams Department of Pediatrics , Division of Neonatal and Perinatal Medicine, School of Medicine, Wayne State University , Detroit , MI , USA
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Distinct Differentiation Programs Triggered by IL-6 and LPS in Teleost IgM(+) B Cells in The Absence of Germinal Centers. Sci Rep 2016; 6:30004. [PMID: 27481356 PMCID: PMC4969607 DOI: 10.1038/srep30004] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 06/28/2016] [Indexed: 12/21/2022] Open
Abstract
Although originally identified as a B cell differentiation factor, it is now known that mammalian interleukin-6 (IL-6) only regulates B cells committed to plasma cells in response to T-dependent (TD) antigens within germinal centers (GCs). Even though adaptive immunity is present in teleost fish, these species lack lymph nodes and GCs. Thus, the aim of the present study was to establish the role of trout IL-6 on B cells, comparing its effects to those induced by bacterial lipopolysaccharide (LPS). We demonstrate that the effects of teleost IL-6 on naïve spleen B cells include proliferation, activation of NF-κB, increased IgM secretion, up-regulation of Blimp1 transcription and decreased MHC-II surface expression that point to trout IL-6 as a differentiation factor for IgM antibody-secreting cells (ASCs). However, LPS induced the secretion of IgM without up-regulating Blimp1, driving the cells towards an intermediate activation state in which antigen presenting mechanisms are elicited together with antibody secretion and expression of pro-inflammatory genes. Our results reveal that, in trout, IL-6 is a differentiation factor for B cells, stimulating IgM responses in the absence of follicular structures, and suggest that it was after follicular structures appeared that this cytokine evolved to modulate TD responses within the GC.
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Initiation and regulation of immune responses to immunization with whole inactivated vaccines prepared from two genetically and antigenically distinct lineages of Egyptian influenza A virus subtype H5N1. Arch Virol 2016; 161:2797-806. [DOI: 10.1007/s00705-016-2989-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 07/17/2016] [Indexed: 10/21/2022]
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Fischer S, Diers S, Bauerfeind R, Czerny CP, Neumann S. Dynamics of salivary immunoglobulin A and serum interleukin 6 levels in newborn calves. Livest Sci 2016. [DOI: 10.1016/j.livsci.2016.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Abstract
Previous studies have shown that a 10 % cocoa (C10) diet, containing polyphenols and fibre among others, modifies intestinal and systemic Ig production. The present study aimed at evaluating the impact of C10 on IgA and IgM production in the intestinal and extra-intestinal mucosal compartments, establishing the involvement of cocoa fibre (CF) in such effects. Mechanisms by which C10 intake may affect IgA synthesis in the salivary glands were also studied. To this effect, rats were fed either a standard diet, a diet containing C10, CF or inulin. Intestinal (the gut wash (GW), Peyer's patches (PP) and mesenteric lymph nodes (MLN)) and extra-intestinal (salivary glands) mucosal tissues and blood samples were collected for IgA and IgM quantification. The gene expressions of IgA production- and homing-related molecules were studied in the salivary glands. The C10 diet decreased intestinal IgA and IgM production. Although the CF diet decreased the GW IgA concentration, it increased PP, MLN and serum IgA concentrations. Both the C10 and the CF diets produced a down-regulatory effect on IgA secretion in the extra-intestinal tissues. The C10 diet interacted with the mechanisms involved in IgA synthesis, whereas the CF showed particular effects on the homing and transcytosis of IgA across the salivary glands. Overall, CF was able to up-regulate IgA production in the intestinal-inductor compartments, whereas it down-regulated its production at the mucosal-effector ones. Further studies must be directed to ascertain the mechanisms involved in the effect of particular cocoa components on gut-associated lymphoid tissue.
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Yazdani R, Fatholahi M, Ganjalikhani-Hakemi M, Abolhassani H, Azizi G, Hamid KM, Rezaei N, Aghamohammadi A. Role of apoptosis in common variable immunodeficiency and selective immunoglobulin A deficiency. Mol Immunol 2016; 71:1-9. [PMID: 26795881 DOI: 10.1016/j.molimm.2015.12.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 12/21/2015] [Accepted: 12/31/2015] [Indexed: 02/07/2023]
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43
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Kandasamy S, Vlasova AN, Fischer D, Kumar A, Chattha KS, Rauf A, Shao L, Langel SN, Rajashekara G, Saif LJ. Differential Effects of Escherichia coli Nissle and Lactobacillus rhamnosus Strain GG on Human Rotavirus Binding, Infection, and B Cell Immunity. THE JOURNAL OF IMMUNOLOGY 2016; 196:1780-9. [PMID: 26800875 DOI: 10.4049/jimmunol.1501705] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 12/14/2015] [Indexed: 11/19/2022]
Abstract
Rotavirus (RV) causes significant morbidity and mortality in children worldwide. The intestinal microbiota plays an important role in modulating host-pathogen interactions, but little is known about the impact of commonly used probiotics on human RV (HRV) infection. In this study, we compared the immunomodulatory effects of Gram-positive (Lactobacillus rhamnosus strain GG [LGG]) and Gram-negative (Escherichia coli Nissle [EcN]) probiotic bacteria on virulent human rotavirus (VirHRV) infection and immunity using neonatal gnotobiotic piglets. Gnotobiotic piglets were colonized with EcN, LGG, or EcN+LGG or uncolonized and challenged with VirHRV. Mean peak virus shedding titers and mean cumulative fecal scores were significantly lower in EcN-colonized compared with LGG-colonized or uncolonized piglets. Reduced viral shedding titers were correlated with significantly reduced small intestinal HRV IgA Ab responses in EcN-colonized compared with uncolonized piglets post-VirHRV challenge. However the total IgA levels post-VirHRV challenge in the intestine and pre-VirHRV challenge in serum were significantly higher in EcN-colonized than in LGG-colonized piglets. In vitro treatment of mononuclear cells with these probiotics demonstrated that EcN, but not LGG, induced IL-6, IL-10, and IgA, with the latter partially dependent on IL-10. However, addition of exogenous recombinant porcine IL-10 + IL-6 to mononuclear cells cocultured with LGG significantly enhanced IgA responses. The greater effectiveness of EcN in moderating HRV infection may also be explained by the binding of EcN but not LGG to Wa HRV particles or HRV 2/4/6 virus-like particles but not 2/6 virus-like particles. Results suggest that EcN and LGG differentially modulate RV infection and B cell responses.
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Affiliation(s)
- Sukumar Kandasamy
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
| | - Anastasia N Vlasova
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
| | - David Fischer
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
| | - Anand Kumar
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
| | - Kuldeep S Chattha
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
| | - Abdul Rauf
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
| | - Lulu Shao
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
| | - Stephanie N Langel
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
| | - Gireesh Rajashekara
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
| | - Linda J Saif
- Food Animal Health Research Program, Ohio Agricultural Research and Development Center, Veterinary Preventive Medicine Department, Ohio State University, Wooster, OH 44691
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Schaper F, Rose-John S. Interleukin-6: Biology, signaling and strategies of blockade. Cytokine Growth Factor Rev 2015; 26:475-87. [DOI: 10.1016/j.cytogfr.2015.07.004] [Citation(s) in RCA: 287] [Impact Index Per Article: 31.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 07/01/2015] [Indexed: 02/07/2023]
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Yazdani R, Latif A, Tabassomi F, Abolhassani H, Azizi G, Rezaei N, Aghamohammadi A. Clinical phenotype classification for selective immunoglobulin A deficiency. Expert Rev Clin Immunol 2015; 11:1245-54. [DOI: 10.1586/1744666x.2015.1081565] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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46
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Muriel J, Salmón P, Nunez-Buiza A, de Salas F, Pérez-Rodríguez L, Puerta M, Gil D. Context-dependent effects of yolk androgens on nestling growth and immune function in a multibrooded passerine. J Evol Biol 2015; 28:1476-88. [PMID: 26079258 DOI: 10.1111/jeb.12668] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 06/08/2015] [Indexed: 01/08/2023]
Abstract
Female birds may adjust their offspring phenotype to the specific requirements of the environment by differential allocation of physiologically active substances into yolks, such as androgens. Yolk androgens have been shown to accelerate embryonic development, growth rate and competitive ability of nestlings, but they can also entail immunological costs. The balance between costs and benefits of androgen allocation is expected to depend on nestling environment. We tested this hypothesis in a multibrooded passerine, the spotless starling, Sturnus unicolor. We experimentally manipulated yolk androgen levels using a between-brood design and evaluated its effects on nestling development, survival and immune function. Both in first and replacement broods, the embryonic development period was shorter for androgen-treated chicks than controls, but there were no differences in second broods. In replacement broods, androgen-treated chicks were heavier and larger than those hatched from control eggs, but this effect was not observed in the other breeding attempts. Androgen exposure reduced survival with respect to controls only in second broods. Regarding immune function, we detected nonsignificant trends for androgen treatment to activate two important components of innate and adaptive immunity (IL-6 and Ig-A levels, respectively). Similarly, androgen-treated chicks showed greater lymphocyte proliferation than controls in the first brood and an opposite trend in the second brood. Our results indicate that yolk androgen effects on nestling development and immunity depend on the environmental conditions of each breeding attempt. Variation in maternal androgen allocation to eggs could be explained as the result of context-dependent optimal strategies to maximize offspring fitness.
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Affiliation(s)
- J Muriel
- Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain
| | - P Salmón
- Department of Biology, Evolutionary Ecology Unit, Lund University, Lund, Sweden
| | - A Nunez-Buiza
- Departamento de Fisiología Animal II, Facultad de Ciencias Biológicas, Universidad Complutense, Madrid, Spain
| | - F de Salas
- Departamento de Fisiología Animal II, Facultad de Ciencias Biológicas, Universidad Complutense, Madrid, Spain
| | - L Pérez-Rodríguez
- Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain.,Departamento de Ecología Evolutiva, Estación Biológica de Doñana (EBD-CSIC), Sevilla, Spain
| | - M Puerta
- Departamento de Fisiología Animal II, Facultad de Ciencias Biológicas, Universidad Complutense, Madrid, Spain
| | - D Gil
- Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain
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Liu Q, Zheng X, Zhang C, Shao X, Zhang X, Zhang Q, Jiang X. Conjugating influenza a (H1N1) antigen to n-trimethylaminoethylmethacrylate chitosan nanoparticles improves the immunogenicity of the antigen after nasal administration. J Med Virol 2015; 87:1807-15. [PMID: 25959372 DOI: 10.1002/jmv.24253] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 05/01/2015] [Accepted: 05/01/2015] [Indexed: 11/09/2022]
Abstract
As one of the most serious infectious respiratory diseases, influenza A (H1N1) is a great threat to human health, and it has created an urgent demand for effective vaccines. Nasal immunization can induce both systemic and mucosal immune responses against viruses, and it can serve as an ideal route for vaccination. However, the low immunogenicity of antigens on nasal mucosa is a high barrier for the development of nasal vaccines. In this study, we covalently conjugated an influenza A (H1N1) antigen to the surface of N-trimethylaminoethylmethacrylate chitosan (TMC) nanoparticles (H1N1-TMC/NP) through thioester bonds to increase the immunogenicity of the antigen after nasal administration. SDS-PAGE revealed that most of the antigen was conjugated on TMC nanoparticles, and an in vitro biological activity assay confirmed the stability of the antigen after conjugation. After three nasal immunizations, the H1N1-TMC/NP induced significantly higher levels of serum IgG and mucosal sIgA compared with free antigen. A hemagglutination inhibition assay showed that H1N1-TMC/NP induced much more protective antibodies than antigen-encapsulated nanoparticles or alum-precipitated antigen (I.M.). In the mechanistic study, H1N1-TMC/NP was shown to stimulate macrophages to produce IL-1β and IL-6 and to stimulate spleen lymphocytes to produce IL-2 and IFN-γ. These results indicated that H1N1-TMC/NP may be an effective vaccine against influenza A (H1N1) viruses for use in nasal immunization.
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Affiliation(s)
- Qingfeng Liu
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, P. R. China
| | - Xiaoyao Zheng
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, P. R. China
| | - Chi Zhang
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, P. R. China
| | - Xiayan Shao
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, P. R. China
| | - Xi Zhang
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, P. R. China
| | - Qizhi Zhang
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, P. R. China
| | - Xinguo Jiang
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, P. R. China
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Innate and Adaptive Immune Functions of Peyer’s Patch Monocyte-Derived Cells. Cell Rep 2015; 11:770-84. [DOI: 10.1016/j.celrep.2015.03.067] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 03/03/2015] [Accepted: 03/26/2015] [Indexed: 12/23/2022] Open
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CD27-IgD- memory B cells are modulated by in vivo interleukin-6 receptor (IL-6R) blockade in rheumatoid arthritis. Arthritis Res Ther 2015; 17:61. [PMID: 25888920 PMCID: PMC4415279 DOI: 10.1186/s13075-015-0580-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 02/23/2015] [Indexed: 01/07/2023] Open
Abstract
Introduction Enhanced B cell activity, particularly memory B cells have gained interest in evaluating response during therapies with biologics. CD27-IgD- double-negative (DN) B cells lacking the conventional memory marker CD27 are reported to be part of the memory compartment, however, only scarce data is available for rheumatoid arthritis (RA). We therefore focused on DN B cells in RA, studied their isotypes and modulation during interleukin-6 receptor (IL-6R) inhibition by tocilizumab (TCZ). Methods DN B cells were phenotypically analyzed from 40 RA patients during TCZ at baseline week 12, week 24 and 1 year. A single B cell polymerase chain reaction (PCR) approach was used to study Ig receptors, VH gene rearrangements and specific isotypes. Results Phenotypic analysis showed a significantly expanded population of DN B cells in RA which contain a heterogeneous mixture of IgG-, IgA- and IgM-expressing cells with a clear dominance of IgG+ cells. DN B cells carry rearranged heavy chain gene sequences with a diversified mutational pattern consistent with memory B cells. In contrast to tumor necrosis factor alpha (TNF-α) inhibition, a significant reduction in mutational frequency of BCR gene rearrangements at week 12, 24 and 1 year (P <0.0001) was observed by in vivo IL-6R inhibition. These changes were observed for all BCR isotypes IgG, IgA and IgM at week 12, 24 and 1 year (P <0.0001). IgA-RF, IgA serum level and IgA+ DN B cells decreased significantly (P <0.05) at week 12 and week 24 during TCZ. Patients with a good European League Against Rheumatism (EULAR) response to TCZ had less DN B cells at baseline as compared to moderate responders (P = 0.006). Univariate logistic regression analysis revealed that the frequency of DN B cells at baseline is inversely correlated to a subsequent good EULAR response (P = 0.024) with an odds ratio of 1.48 (95% confidence interval as 1.05 to 2.06). Conclusions In RA, the heterogeneous DN B cell compartment is expanded and dominated by IgG isotype. TCZ can modulate the mutational status of DN Ig isotype receptors over 1 year. Interestingly, the frequency of DN B cells in RA may serve as a baseline predictor of subsequent EULAR response to TCZ. Electronic supplementary material The online version of this article (doi:10.1186/s13075-015-0580-y) contains supplementary material, which is available to authorized users.
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Lin J, Kang H, Liang J, Fu J, Yu Q, Yang Q. CpG oligonucleotides and Astragalus polysaccharides are effective adjuvants in cultures of avian bone-marrow-derived dendritic cells. Br Poult Sci 2015; 56:30-8. [PMID: 25403700 DOI: 10.1080/00071668.2014.981146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
1. The potential use of CpG oligodeoxynucleotides and/or Astragalus polysaccharide (APS) as adjuvants for the culture of chicken bone-marrow-derived dendritic cells (chBM-DCs) was investigated. 2. Chicken dendritic cells (DCs) were isolated and cultured in the presence of recombinant chicken granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin (IL)-4. The chBM-DC displayed typical DC morphology and expressed DC surface markers (MHC-II and CD11c). 3. Cultured chBM-DC showed effective T-cell activation in vitro, based on a mixed lymphocyte response (MLR). Flow cytometry analysis showed an increased proportion of cells expressing CD40 and CD80 in the APS-stimulated culture, compared to the control culture. In the MLR, the APS- and CpG-stimulated chBM-DC could activate T-cells more than control chBM-DC. Real-time PCR assays showed that CpG can activate the TLR21 and an inflammatory response, while APS just reduced the expression of IRF-3. 4. The results demonstrated that in vitro the adjuvant CpG can stimulate chBM-DC to mature by activation of the TLR-signalling pathway, whereas the adjuvant APS stimulates maturation of chBM-DC in vitro to a lesser degree and by another mechanism.
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Affiliation(s)
- J Lin
- a Key Lab of Animal Physiology and Biochemistry , Nanjing Agricultural University , Nanjing , Jiangsu , PR China
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