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Ozberk V, Zaman M, Lepletier A, Eskandari S, Kaden J, Mills JL, Calcutt A, Dooley J, Huo Y, Langshaw EL, Ulett GC, Batzloff MR, Good MF, Pandey M. A Glycolipidated-liposomal peptide vaccine confers long-term mucosal protection against Streptococcus pyogenes via IL-17, macrophages and neutrophils. Nat Commun 2023; 14:5963. [PMID: 37749129 PMCID: PMC10520070 DOI: 10.1038/s41467-023-41410-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/04/2023] [Indexed: 09/27/2023] Open
Abstract
Mucosally active subunit vaccines are an unmet clinical need due to lack of licensed immunostimulants suitable for vaccine antigens. Here, we show that intranasal administration of liposomes incorporating: the Streptococcus pyogenes peptide antigen, J8; diphtheria toxoid as a source of T cell help; and the immunostimulatory glycolipid, 3D(6-acyl) PHAD (PHAD), is able to induce long-lived humoral and cellular immunity. Mice genetically deficient in either mucosal antibodies or total antibodies are protected against S. pyogenes respiratory tract infection. Utilizing IL-17-deficient mice or depleting cellular subsets using antibodies, shows that the cellular responses encompassing, CD4+ T cells, IL-17, macrophages and neutrophils have important functions in vaccine-mediated mucosal immunity. Overall, these data demonstrate the utility of a mucosal vaccine platform to deliver multi-pronged protective responses against a highly virulent pathogen.
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Affiliation(s)
- Victoria Ozberk
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Mehfuz Zaman
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Ailin Lepletier
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Sharareh Eskandari
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Jacqualine Kaden
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Jamie-Lee Mills
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Ainslie Calcutt
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Jessica Dooley
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Yongbao Huo
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Emma L Langshaw
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Glen C Ulett
- School of Pharmacy and Medical Science, and Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
| | - Michael R Batzloff
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Michael F Good
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia.
| | - Manisha Pandey
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia.
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Lesnova EI, Masalova OV, Permyakova KY, Demidova NA, Valuev-Elliston VT, Ivanov AV, Kushch AA. The adjuvant effect of polymuramil, a NOD1 and NOD2 agonist, differs when immunizing mice of different inbred lines with nonstructural hepatitis C virus (Flaviviridae: Hepacivirus)proteins and is synergistically enhanced in combination with pyrogenalum, a TLR4 agonist. Vopr Virusol 2023; 68:315-326. [PMID: 38156588 DOI: 10.36233/0507-4088-183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Indexed: 12/30/2023]
Abstract
INTRODUCTION Hepatitis C is a liver disease with high chronicity, the cause of cirrhosis and hepatocarcinoma. The main obstacle to controlling hepatitis C is the lack of vaccines. The aim of the work was to compare the immunogenic activity of nonstructural recombinant proteins NS3, NS4 and NS5B of hepatitis C virus (HCV) as components of a subunit candidate vaccine and to analyze the adjuvant properties of two available commercial drugs, polymuramil and pyrogenalum. MATERIALS AND METHODS BALB/c, DBA/2J and C57BL/6 mice were immunized with nonstructural proteins without adjuvants or with polymuramyl (NOD1 and NOD2 agonist) and pyrogenalum (TLR-4 agonist). The activity of antibodies was determined in ELISA, the cellular response - by antigen-specific lymphocyte proliferation and by production of IFN-γ in vitro. RESULTS Recombinant proteins showed different immunogenicity. NS4 induced antibodies more efficiently than NS3 and NS5B. Significant differences were found in the immune response of three inbred lines mice: the level of IFN-γ in BALB/c and DBA/2J mice induced by NS5B protein was 30 times higher than in C57Bl/6 mice. In contrast, the induction of antibodies in BALB/c mice was lower than in C57Bl/6 and DBA/2J. Polymuramil did not increase the humoral response to NS5B and enhanced the cellular response only in C57BL/6 mice. The combined use of polymuramil with pyrogenalum significantly increased both the humoral and cellular response of mice to all recombinant HCV proteins. CONCLUSION Different immunogenic properties and different functions of recombinant non-structural HCV proteins indicate the feasibility of their combined inclusion in subunit vaccines. It was established for the first time that immunization with HCV proteins with a complex adjuvant (polymuramyl + pyrogenalum) has a synergistic effect, significantly exceeding the effect of each of them separately.
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Affiliation(s)
- E I Lesnova
- Gamaleya NRC of Epidemiology and Microbiology, Ministry of Health of the Russian Federation
| | - O V Masalova
- Gamaleya NRC of Epidemiology and Microbiology, Ministry of Health of the Russian Federation
| | - K Y Permyakova
- Gamaleya NRC of Epidemiology and Microbiology, Ministry of Health of the Russian Federation
- Moscow State Academy of Veterinary Medicine and Biotechnology - MVA by K.I. Skryabin
| | - N A Demidova
- Gamaleya NRC of Epidemiology and Microbiology, Ministry of Health of the Russian Federation
| | | | - A V Ivanov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences
| | - A A Kushch
- Gamaleya NRC of Epidemiology and Microbiology, Ministry of Health of the Russian Federation
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Mannion JM, Segal BM, McLoughlin RM, Lalor SJ. Respiratory tract Moraxella catarrhalis and Klebsiella pneumoniae can promote pathogenicity of myelin-reactive Th17 cells. Mucosal Immunol 2023; 16:399-407. [PMID: 37088262 DOI: 10.1016/j.mucimm.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/31/2023] [Accepted: 04/13/2023] [Indexed: 04/25/2023]
Abstract
The respiratory tract is home to a diverse microbial community whose influence on local and systemic immune responses is only beginning to be appreciated. The airways have been linked with the trafficking of myelin-specific T-cells in the preclinical stages of experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis (MS). Th17 cells are important pathogenic effectors in MS and EAE but are innocuous immediately following differentiation. Upregulation of the cytokine GM-CSF appears to be a critical step in their acquisition of pathogenic potential, but little is known about the mechanisms that mediate this process. Here, primed myelin-specific Th17 cells were transferred to congenic recipient mice prior to exposure to various human respiratory tract-associated bacteria and T-cell trafficking, phenotype and the severity of resulting EAE were monitored. Disease was exacerbated in mice exposed to the Proteobacteria Moraxella catarrhalis and Klebsiella pneumoniae, but not the Firmicute Veillonella parvula, and this was associated with significantly increased GM-CSF+ and GM-CSF+IFNγ+ ex-Th17-like donor CD4 T cells in the lungs and central nervous system (CNS) of these mice. These findings support the concept that respiratory bacteria may contribute to the pathophysiology of CNS autoimmunity by modulating pathogenicity in crucial T-cell subsets that orchestrate neuroinflammation.
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Affiliation(s)
- Jenny M Mannion
- Host-Pathogen Interactions Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Benjamin M Segal
- Department of Neurology and the Neuroscience Research Institute, The Ohio State University Wexner Medical Center, Columbus, USA; Department of Neurology, University of Michigan, Ann Arbor, USA
| | - Rachel M McLoughlin
- Host-Pathogen Interactions Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Stephen J Lalor
- University College Dublin School of Medicine, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland.
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Stark JM, Liu J, Tibbitt CA, Christian M, Ma J, Wintersand A, Dunst J, Kreslavsky T, Murrell B, Adner M, Grönlund H, Gafvelin G, Coquet JM. Recombinant multimeric dog allergen prevents airway hyperresponsiveness in a model of asthma marked by vigorous T H 2 and T H 17 cell responses. Allergy 2022; 77:2987-3001. [PMID: 35657107 PMCID: PMC9796107 DOI: 10.1111/all.15399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 04/27/2022] [Accepted: 05/02/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Allergy to dogs affects around 10% of the population in developed countries. Immune therapy of allergic patients with dog allergen extracts has shown limited therapeutic benefit. METHODS We established a mouse model of dog allergy by repeatedly administering dog dander and epithelium extracts via the intranasal route. We also assessed the efficacy of a recombinant multimeric protein containing Can f 1, f 2, f 4 and f 6 in preventing inflammatory responses to dog extracts. RESULTS Repeated inhalation of dog extracts induced infiltration of the airways by TH 2 cells, eosinophils and goblet cells, reminiscent of the house dust mite (HDM) model of asthma. Dog extracts also induced robust airway hyperresponsiveness and promoted TH 17 cell responses, which was associated with a high neutrophilic infiltration of the airways. scRNA-Seq analysis of T helper cells in the airways pinpointed a unique gene signature for TH 17 cells. Analysis of T-cell receptors depicted a high frequency of clones that were shared between TH 17, TH 2 and suppressive Treg cells, indicative of a common differentiation trajectory for these subsets. Importantly, sublingual administration of multimeric Can f 1-2-4-6 protein prior to sensitization reduced airway hyperresponsiveness and type 2-mediated inflammation in this model. CONCLUSION Dog allergen extracts induce robust TH 2 and TH 17 cell-mediated responses in mice. Recombinant Can f 1-2-4-6 can induce tolerance to complex dog allergen extracts.
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Affiliation(s)
- Julian M. Stark
- Department of Microbiology, Tumor and Cell BiologyKarolinska InstitutetStockholmSweden
| | - Jielu Liu
- Institute of Environmental Medicine and Centre for Allergy ResearchKarolinska InstitutetStockholmSweden
| | | | - Murray Christian
- Department of Microbiology, Tumor and Cell BiologyKarolinska InstitutetStockholmSweden
| | - Junjie Ma
- Department of Microbiology, Tumor and Cell BiologyKarolinska InstitutetStockholmSweden
| | - Anna Wintersand
- Department of Clinical Neuroscience, Karolinska InstitutetCentre for Molecular MedicineStockholmSweden
| | - Josefine Dunst
- Department of Medicine, Division of Immunology and Allergy, Karolinska InstitutetKarolinska University HospitalStockholmSweden,Center for Molecular MedicineKarolinska InstitutetStockholmSweden
| | - Taras Kreslavsky
- Department of Medicine, Division of Immunology and Allergy, Karolinska InstitutetKarolinska University HospitalStockholmSweden,Center for Molecular MedicineKarolinska InstitutetStockholmSweden
| | - Ben Murrell
- Department of Microbiology, Tumor and Cell BiologyKarolinska InstitutetStockholmSweden
| | - Mikael Adner
- Institute of Environmental Medicine and Centre for Allergy ResearchKarolinska InstitutetStockholmSweden
| | - Hans Grönlund
- Department of Clinical Neuroscience, Karolinska InstitutetCentre for Molecular MedicineStockholmSweden
| | - Guro Gafvelin
- Department of Clinical Neuroscience, Karolinska InstitutetCentre for Molecular MedicineStockholmSweden
| | - Jonathan M. Coquet
- Department of Microbiology, Tumor and Cell BiologyKarolinska InstitutetStockholmSweden
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Zhang Q, Zhao J, Ni M, Shen Q, Zhou W, Liu Z. Vitamin D 3 reverses the transcriptional profile of offspring CD4 + T lymphocytes exposed to intrauterine inflammation. J Steroid Biochem Mol Biol 2022; 221:106120. [PMID: 35533917 DOI: 10.1016/j.jsbmb.2022.106120] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 03/23/2022] [Accepted: 04/23/2022] [Indexed: 12/12/2022]
Abstract
Chorioamnionitis profoundly influences multiple fetal organs as well as the immune system. Maternal vitamin D (VitD) supplementation may modulate the immune function of offspring. Here, we sought to uncover the immunomodulatory potential of intrauterine inflammation and VitD in offspring CD4+ T cells. Pregnant C57BL/6 mice were treated with intrauterine lipopolysaccharide (LPS) injections, with or without VitD. Splenic CD4+ T cells were negatively selected using anti-biotin microbeads at 28 days after birth. Differentially expressed genes (DEGs) in the offspring CD4+ T cells were identified via RNA sequencing. In total, 181 DEGs induced by LPS exposure were identified in offspring CD4+ T cells. Furthermore, 2461 DEGs were detected after VitD supplementation in addition to LPS exposure. VitD supplementation showed an unexpected ability to counteract the LPS-induced transcriptional responses. VitD supplementation downregulated lymphocyte differentiation (GO: 0030098) and lymphocyte activation (GO: 0046649), and upregulated the responses to viruses (GO: 0009615) and bacteria (GO:0009617) in offspring CD4+ T cells with intrauterine LPS exposure. In addition, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that several pathways, including the T cell receptor signaling pathway, the mitogen-activated protein kinase (MAPK) signaling pathway, Th17 cell differentiation, and autophagy, were downregulated by intrauterine VitD intervention following LPS exposure. Subsequently, we confirmed the counteracting effect of VitD against LPS on the expression of several genes (Insr, Foxo1, and Peli1) using qRT-PCR and western blot analyses. We also demonstrated that intrauterine VitD supplementation interferes with offspring Th17 cell differentiation induced by intrauterine LPS exposure. Our study revealed that VitD reverses the transcriptional and Th17 differential profiles of offspring CD4+ T lymphocytes induced by intrauterine LPS, and indicated the contribution of maternal VitD supplementation to immune protection in offspring affected by intrauterine inflammation.
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Affiliation(s)
- Qianqian Zhang
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China; International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Jiuru Zhao
- International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Meng Ni
- International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Qianwen Shen
- International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai Jiao Tong University, Shanghai, China
| | - Wenhao Zhou
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China; Key Laboratory of Neonatal Diseases, Ministry of Health, Children's Hospital of Fudan University, Shanghai, China.
| | - Zhiwei Liu
- International Peace Maternity and Child Health Hospital of China Welfare Institution, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai Jiao Tong University, Shanghai, China.
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ZHU C, FENG C, FENG F, Yao X, WANG G, SHI L, ZHENG J. Baicalin inhibits inflammation of lipopolysaccharide-induced acute lung injury toll like receptor-4/myeloid differentiation primary response 88/nuclear factor-kappa B signaling pathway. J TRADIT CHIN MED 2022; 42:200-212. [PMID: 35473340 PMCID: PMC9924652 DOI: 10.19852/j.cnki.jtcm.20211214.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
OBJECTIVE To explore the effect and mechanism of baicalin in the treatment of acute lung injury (ALI) by and experiments. METHODS ALI was induced by instilling 10 mg/mL lipopolysaccharide (LPS) into the airway of rats. Different doses of baicalin (50 and 100 mg·kg ·d) were administered by gavage one day before modeling. RESULTS Baicalin significantly reduced the permeability of the alveolocapillary membrane, alleviated tissue injury and inflammatory infiltration, and inhibited the secretion of inflammatory factors and the infiltration of neutrophils. The decline in these inflammations was related to the inhibition of the toll like receptor-4 (TLR4)/myeloid differentiation factor 88 (MyD88)/nuclear factor-kappa B (NF-κB)/nod-like receptor pyrin containing 3 (NLRP3) signaling pathway and the mitogen-activated protein kinase (MAPK) signaling pathway. CONCLUSIONS Baicalin inhibits the secretion of inflammatory factors by inhibiting the TLR4-MyD88-NF-κB/NLRP3 pathway and the MAPK signaling pathway. Thus, it reduces lung bronchial epithelial layer, alveolar damage, and pulmonary edema as detected in the and experiments. Therefore, baicalin may be a potential preventive and therapeutic drug for ALI.
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Affiliation(s)
- Changle ZHU
- 1 Department of respiration, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100000, China
- 2 Department of traditional Chinese Medicine, Peking University People's Hospital, Beijing, 100000, China
| | - Cuiling FENG
- 2 Department of traditional Chinese Medicine, Peking University People's Hospital, Beijing, 100000, China
- Prof. FENG Cuiling, Department of Traditional Chinese Medicine, Peking University People's Hospital, Beijing 100000, China. , Telephone: +86-18810619976
| | - Feng FENG
- 1 Department of respiration, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100000, China
| | - Xiaoqin Yao
- 3 Department of Traditional Chinese Medicine, Peking University International Hospital, Beijing 100000, China
| | - Guishu WANG
- 1 Department of respiration, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100000, China
| | - Liangtian SHI
- 1 Department of respiration, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100000, China
| | - Jiakun ZHENG
- 1 Department of respiration, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100000, China
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Targeting Interleukin-10 Restores Graft Microvascular Supply and Airway Epithelium in Rejecting Allografts. Int J Mol Sci 2022; 23:ijms23031269. [PMID: 35163192 PMCID: PMC8836023 DOI: 10.3390/ijms23031269] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/09/2022] [Accepted: 01/12/2022] [Indexed: 12/12/2022] Open
Abstract
Interleukin-10 (IL-10) is a vital regulatory cytokine, which plays a constructive role in maintaining immune tolerance during an alloimmune inflammation. Our previous study highlighted that IL-10 mediated immunosuppression established the immune tolerance phase and thereby modulated both microvascular and epithelial integrity, which affected inflammation-associated graft malfunctioning and sub-epithelial fibrosis in rejecting allografts. Here, we further investigated the reparative effects of IL-10 on microvasculature and epithelium in a mouse model of airway transplantation. To investigate the IL-10 mediated microvascular and epithelial repair, we depleted and reconstituted IL-10, and monitored graft microvasculature, airway epithelium, and associated repair proteins. Our data demonstrated that both untreated control allografts and IL-10 (−) allografts showed a significant early (d6) increase in microvascular leakiness, drop-in tissue oxygenation, blood perfusion, and denuded airway epithelium, which is associated with loss of adhesion protein Fascin-1 and β-catenin on vascular endothelial cells at d10 post-transplantation. However, IL-10 (+) promotes early microvascular and airway epithelial repair, and a proportional increase in endothelial Fascin-1, and β-catenin at d10 post-transplantation. Moreover, airway epithelial cells also express a significantly higher expression of FOXJ1 and β-catenin in syngrafts and IL-10 (+) allografts as compared to IL-10 (−) and untreated controls at d10 post-transplantation. Collectively, these findings demonstrated that IL-10 mediated microvascular and epithelial changes are associated with the expression of FOXJ1, β-catenin, and Fascin-1 proteins on the airway epithelial and vascular endothelial cells, respectively. These findings establish a potential reparative modulation of IL-10 associated microvascular and epithelial repair, which could provide a vital therapeutic strategy to facilitate graft repair in clinical settings.
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Poholek AC. Tissue-Specific Contributions to Control of T Cell Immunity. Immunohorizons 2021; 5:410-423. [PMID: 34103371 PMCID: PMC10876086 DOI: 10.4049/immunohorizons.2000103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/17/2021] [Indexed: 11/19/2022] Open
Abstract
T cells are critical for orchestrating appropriate adaptive immune responses and maintaining homeostasis in the face of persistent nonpathogenic Ags. T cell function is controlled in part by environmental signals received upon activation and derived from the tissue environment in which Ag is encountered. Indeed, tissue-specific environments play important roles in controlling the T cell response to Ag, and recent evidence suggests that tissue draining lymph nodes can mirror those local differences. Thus, tissue-specific immunity may begin at priming in secondary lymph nodes, where local signals have an important role in T cell fate. In this study, we discuss the tissue-specific signals that may impact T cell differentiation and function, including the microbiome, metabolism, and tissue-specific innate cell imprinting. We argue that these individual contributions create tissue-specific niches that likely play important roles in T cell differentiation and function controlling the outcome of the response to Ags.
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Affiliation(s)
- Amanda C Poholek
- Division of Pediatric Rheumatology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA; and Department of Immunology, University of Pittsburgh, Pittsburgh, PA
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9
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Blockade of NF-κB Translocation and of RANKL/RANK Interaction Decreases the Frequency of Th2 and Th17 Cells Capable of IL-4 and IL-17 Production, Respectively, in a Mouse Model of Allergic Asthma. Molecules 2021; 26:molecules26113117. [PMID: 34071080 PMCID: PMC8197166 DOI: 10.3390/molecules26113117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 11/23/2022] Open
Abstract
The main purpose of this study was to investigate whether the blockade of the interaction between the receptor activator of nuclear factor-κB (NF-ĸB) ligand (RANKL) and its receptor RANK as well as the blockade of NF-κB inhibitor kinase (IKK) and of NF-κB translocation have the potential to suppress the pathogenesis of allergic asthma by inhibition and/or enhancement of the production by CD4+ and CD8+ T cells of important cytokines promoting (i.e., IL-4 and IL-17) and/or inhibiting (i.e., IL-10 and TGF-β), respectively, the development of allergic asthma. Studies using ovalbumin(OVA)-immunized mice have demonstrated that all the tested therapeutic strategies prevented the OVA-induced increase in the absolute number of IL-4- and IL-17-producing CD4+ T cells (i.e., Th2 and Th17 cells, respectively) indirectly, i.e., through the inhibition of the clonal expansion of these cells in the mediastinal lymph nodes. Additionally, the blockade of NF-κB translocation and RANKL/RANK interaction, but not IKK, prevented the OVA-induced increase in the percentage of IL-4-, IL-10- and IL-17-producing CD4+ T cells. These latter results strongly suggest that both therapeutic strategies can directly decrease IL-4 and IL-17 production by Th2 and Th17 cells, respectively. This action may constitute an important mechanism underlying the anti-asthmatic effect induced by the blockade of NF-κB translocation and of RANKL/RANK interaction. Thus, in this context, both these therapeutic strategies seem to have an advantage over the blockade of IKK. None of the tested therapeutic strategies increased both the absolute number and frequency of IL-10- and TGF-β-producing Treg cells, and hence they lacked the potential to inhibit the development of the disease via this mechanism.
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10
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Novel formulations and drug delivery systems to administer biological solids. Adv Drug Deliv Rev 2021; 172:183-210. [PMID: 33705873 DOI: 10.1016/j.addr.2021.02.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/28/2021] [Accepted: 02/18/2021] [Indexed: 12/13/2022]
Abstract
Recent advances in formulation sciences have expanded the previously limited design space for biological modalities, including peptide, protein, and vaccine products. At the same time, the discovery and application of new modalities, such as cellular therapies and gene therapies, have presented formidable challenges to formulation scientists. We explore these challenges and highlight the opportunities to overcome them through the development of novel formulations and drug delivery systems as biological solids. We review the current progress in both industry and academic laboratories, and we provide expert perspectives in those settings. Formulation scientists have made a tremendous effort to accommodate the needs of these novel delivery routes. These include stability-preserving formulations and dehydration processes as well as dosing regimes and dosage forms that improve patient compliance.
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11
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Li N, Fan X, Xu M, Zhou Y, Wang B. Flu Virus Attenuates Memory Clearance of Pneumococcus via IFN-γ-Dependent Th17 and Independent Antibody Mechanisms. iScience 2020; 23:101767. [PMID: 33251497 PMCID: PMC7683269 DOI: 10.1016/j.isci.2020.101767] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 06/16/2020] [Accepted: 10/30/2020] [Indexed: 12/25/2022] Open
Abstract
Bacterial coinfection is a major cause of influenza-associated mortality. Most people have experienced infections with bacterial pathogens commonly associated with influenza A virus (IAV) coinfection before IAV exposure; however, bacterial clearance through the immunological memory response (IMR) in coinfected patients is inefficient, suggesting that the IMR to bacteria is impaired during IAV infection. Adoptive transfer of CD4+ T cells from mice that had experienced bacterial infection into IAV-infected mice revealed that memory protection against bacteria was weakened in the latter. Additionally, memory Th17 cell responses were impaired due to an IFN-γ-dependent reduction in Th17 cell proliferation and delayed migration of CD4+ T cells into the lungs. A bacterium-specific antibody-mediated memory response was also substantially reduced in coinfected mice, independently of IFN-γ. These findings provide additional perspectives on the pathogenesis of coinfection and suggest additional strategies for the treatment of defective antibacterial immunity and the design of bacterial vaccines against coinfection. Memory protection against bacteria was impaired in coinfection Memory Th17 response to bacteria was reduced by IAV-induced IFN-γ The Th17 reduction was caused by impeded Th17 proliferation and migration Bacteria-specific antibody was reduced in coinfection independent of IFN-γ
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Affiliation(s)
- Ning Li
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xin Fan
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Meiyi Xu
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Ya Zhou
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Beinan Wang
- Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
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Shi CC, Zhu HY, Li H, Zeng DL, Shi XL, Zhang YY, Lu Y, Ling LJ, Wang CY, Chen DF. Regulating the balance of Th17/Treg cells in gut-lung axis contributed to the therapeutic effect of Houttuynia cordata polysaccharides on H1N1-induced acute lung injury. Int J Biol Macromol 2020; 158:52-66. [PMID: 32353505 DOI: 10.1016/j.ijbiomac.2020.04.211] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 02/06/2023]
Abstract
Our previous study had demonstrated that oral administration of Houttuynia cordata polysaccharides (HCP) without in vitro antiviral activity ameliorated gut and lung injuries induced by influenza A virus (IAV) in mice. However, as macromolecules, HCP was hard to be absorbed in gastrointestinal tract and had no effect on lung injury when administrated intravenously. The action mechanism of HCP was thus proposed as regulating the gut mucosal-associated lymphoid tissue (GALT). Actually, HCP treatment restored the balance of Th17/Treg cells firstly in GALT and finally in the lung. HCP reduced the expression of chemokine CCL20 in the lung and regulated the balance of Th17/Treg carrying CCR6+ (the CCL20 receptor), which was associated with specific migration of Th17/Treg cells from GALT to lung. In vitro, HCP inhibited Th17 cell differentiation through the downregulation of phospho-STAT3, whereas it promoted Treg cell differentiation by upregulating phospho-STAT5. Furthermore, its therapeutic effect was abolished in RORγt-/- or Foxp3-/- mice. These findings indicated that oral administration of macromolecular polysaccharides like HCP might ameliorate lung injury in IAV infected mice via directly regulating the balance of Th17/Treg cells in gut-lung axis. Our results provided a potential mechanism underlying the therapeutic effect of polysaccharides on pulmonary infection.
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Affiliation(s)
- Chen-Chen Shi
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai, China.
| | - Hai-Yan Zhu
- Department of Biological Medicines & Shanghai Engineering Research Center of ImmunoTherapeutics, School of Pharmacy, Fudan University.
| | - Hong Li
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Dong-Lin Zeng
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai, China
| | - Xun-Long Shi
- Department of Biological Medicines & Shanghai Engineering Research Center of ImmunoTherapeutics, School of Pharmacy, Fudan University
| | - Yun-Yi Zhang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Yan Lu
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai, China
| | - Li-Jun Ling
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai, China
| | - Chang-Yue Wang
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai, China
| | - Dao-Feng Chen
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai, China.
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13
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Rashid MI, Rehman S, Ali A, Andleeb S. Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach. PeerJ 2019; 7:e6223. [PMID: 31249730 PMCID: PMC6589079 DOI: 10.7717/peerj.6223] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/05/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Cholera, an acute enteric infection, is a serious health challenge in both the underdeveloped and the developing world. It is caused by Vibrio cholerae after ingestion of fecal contaminated food or water. Cholera outbreaks have recently been observed in regions facing natural calamities (i.e., earthquake in Haiti 2010) or war (i.e., ongoing civil war in Yemen 2016) where healthcare and sanitary setups have been disrupted as a consequence. Whole-cell oral cholera vaccines (OCVs) have been in market but their regimen efficacy has been questioned. A reverse vaccinology (RV) approach has been applied as a successful anti-microbial measure for many infectious diseases. METHODOLOGY With the aim of finding new protective antigens for vaccine development, the V. cholerae O1 (biovar eltr str. N16961) proteome was computationally screened in a sequential prioritization approach that focused on determining the antigenicity of potential vaccine candidates. Essential, accessible, virulent and immunogenic proteins were selected as potential candidates. The predicted epitopes were filtered for effective binding with MHC alleles and epitopes binding with greater MHC alleles were selected. RESULTS In this study, we report lipoprotein NlpD, outer membrane protein OmpU, accessory colonization factor AcfA, Porin, putative and outer membrane protein OmpW as potential candidates qualifying all the set criteria. These predicted epitopes can offer a potential for development of a reliable peptide or subunit vaccine for V. cholerae.
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Affiliation(s)
- Muhammad I. Rashid
- Department of Industrial Biotechnology, Atta ur Rahman School of Applied Biosciences, National University of Science and Technology, Islamabad, Pakistan
| | - Sammia Rehman
- Department of Industrial Biotechnology, Atta ur Rahman School of Applied Biosciences, National University of Science and Technology, Islamabad, Pakistan
| | - Amjad Ali
- Department of Industrial Biotechnology, Atta ur Rahman School of Applied Biosciences, National University of Science and Technology, Islamabad, Pakistan
| | - Saadia Andleeb
- Department of Industrial Biotechnology, Atta ur Rahman School of Applied Biosciences, National University of Science and Technology, Islamabad, Pakistan
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14
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Vitkov L, Hannig M, Minnich B, Herrmann M. Periodontal sources of citrullinated antigens and TLR agonists related to RA. Autoimmunity 2018; 51:304-309. [DOI: 10.1080/08916934.2018.1527907] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ljubomir Vitkov
- Department of Biosciences Vascular & Exercise Biology Unit, University of Salzburg, Salzburg, Austria
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University, Homburg, Germany
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University, Homburg, Germany
| | - Bernd Minnich
- Department of Biosciences Vascular & Exercise Biology Unit, University of Salzburg, Salzburg, Austria
| | - Martin Herrmann
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
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15
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Righetti RF, Dos Santos TM, Camargo LDN, Aristóteles LRCRB, Fukuzaki S, de Souza FCR, Santana FPR, de Agrela MVR, Cruz MM, Alonso-Vale MIC, Genaro IS, Saraiva-Romanholo BM, Leick EA, Martins MDA, Prado CM, Tibério IDFLC. Protective Effects of Anti-IL17 on Acute Lung Injury Induced by LPS in Mice. Front Pharmacol 2018; 9:1021. [PMID: 30337870 PMCID: PMC6180195 DOI: 10.3389/fphar.2018.01021] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 08/23/2018] [Indexed: 12/20/2022] Open
Abstract
Introduction: T helper 17 (Th17) has been implicated in a variety of inflammatory lung and immune system diseases. However, little is known about the expression and biological role of IL-17 in acute lung injury (ALI). We investigated the mechanisms involved in the effect of anti-IL17 in a model of lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice. Methods: Mice were pre-treated with anti-IL17, 1h before saline/LPS intratracheal administration alongside non-treated controls and levels of exhaled nitric oxide (eNO), cytokine expression, extracellular matrix remodeling and oxidative stress, as well as immune cell counts in bronchoalveolar lavage fluid (BALF), and respiratory mechanics were assessed in lung tissue. Results: LPS instillation led to an increase in multiple cytokines, proteases, nuclear factor-κB, and Forkhead box P3 (FOXP3), eNO and regulators of the actomyosin cytoskeleton, the number of CD4+ and iNOS-positive cells as well as the number of neutrophils and macrophages in BALF, resistance and elastance of the respiratory system, ARG-1 gene expression, collagen fibers, and actin and 8-iso-PGF2α volume fractions. Pre-treatment with anti-IL17 led to a significant reduction in the level of all assessed factors. Conclusions: Anti-IL17 can protect the lungs from the inflammatory effects of LPS-induced ALI, primarily mediated by the reduced expression of cytokines and oxidative stress. This suggests that further studies using anti-IL17 in a treatment regime would be highly worthwhile.
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Affiliation(s)
- Renato Fraga Righetti
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil.,Hospital Sírio-Libanês, São Paulo, Brazil
| | - Tabata Maruyama Dos Santos
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil.,Hospital Sírio-Libanês, São Paulo, Brazil
| | | | | | - Silvia Fukuzaki
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Maysa Mariana Cruz
- Universidade Federal de São Paulo, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Departamento de Ciências Biológicas, Diadema, São Paulo, Brazil
| | - Maria Isabel Cardoso Alonso-Vale
- Universidade Federal de São Paulo, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Departamento de Ciências Biológicas, Diadema, São Paulo, Brazil
| | - Isabella Santos Genaro
- Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil.,Public Employee of São Paulo Hospital (IAMSPE), São Paulo, Brazil
| | | | | | | | - Carla Máximo Prado
- Department of Bioscience, Federal University of São Paulo, Santos, São Paulo, Brazil
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16
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Petruzzi B, Dalloul RA, LeRoith T, Evans NP, Pierson FW, Inzana TJ. Biofilm formation and avian immune response following experimental acute and chronic avian cholera due to Pasteurella multocida. Vet Microbiol 2018; 222:114-123. [PMID: 30080666 DOI: 10.1016/j.vetmic.2018.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 06/21/2018] [Accepted: 07/06/2018] [Indexed: 12/15/2022]
Abstract
Pasteurella multocida is the causative agent of avian cholera, an important economic and ecological disease that can present as a peracute, acute, chronic, or asymptomatic infection. Acute avian cholera is associated with encapsulated P. multocida, while chronic and asymptomatic cases of avian cholera may be associated with capsule-deficient P. multocida isolates. We hypothesize that biofilm formation is also associated with chronic and asymptomatic avian cholera. Experimental infections of chickens with encapsulated, biofilm-deficient P. multocida strain X73, proficient biofilm forming P. multocida strain X73ΔhyaD, and proficient biofilm forming clinical strains 775 and 756 showed that virulence was inversely correlated with biofilm formation. Biofilm-proficient isolates induced chronic avian cholera in the chicken host. Histopathological analysis was used to show that biofilm-proficient isolates induced little inflammation in the lungs, heart, and liver, while biofilm-deficient isolates induced greater inflammation and induced the recruitment of heterophil granulocytes. Putative biofilm matrix material and exopolysaccharide was detected in pulmonary tissue of chickens diagnosed with chronic avian cholera using scanning electron microscopy and a fluorescently-tagged lectin, respectively, supporting a role for biofilm in chronic avian cholera. P. multocida induced Th1 and Th17 immune responses during acute and chronic avian cholera, as determined by quantitative real-time PCR of splenic cytokine genes. Chickens that succumbed to acute avian cholera after experimental challenge with strain X73 had high levels of INF-γ, IL-1β, IL-6, IL-12A, IL-22, IL-17A, and IL-17RA expressed in the spleen compared to all other experimental groups. Birds infected with capsule-deficient strains had chronic infections lasting 7 days or longer, and had increased levels of IL-17RA, CCR6, and IL-16 compared to non-infected control chickens. However, specific antibody titers increased only transiently to capsule-deficient strains and were low, indicating that antibodies are less important in managing and clearing P. multocida infections.
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Affiliation(s)
- Briana Petruzzi
- Virginia-Maryland College of Veterinary Medicine, Department of Biomedical Sciences & Pathobiology, Virginia Tech, Blacksburg, VA, 24061, United States
| | - Rami A Dalloul
- College of Agriculture and Life Sciences, Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, VA, 24061, United States
| | - Tanya LeRoith
- Virginia-Maryland College of Veterinary Medicine, Department of Biomedical Sciences & Pathobiology, Virginia Tech, Blacksburg, VA, 24061, United States
| | - Nicholas P Evans
- Virginia-Maryland College of Veterinary Medicine, Department of Population Health Sciences, Virginia Tech, Blacksburg, VA, 24061, United States
| | - F William Pierson
- Virginia-Maryland College of Veterinary Medicine, Department of Population Health Sciences, Virginia Tech, Blacksburg, VA, 24061, United States
| | - Thomas J Inzana
- Virginia-Maryland College of Veterinary Medicine, Department of Biomedical Sciences & Pathobiology, Virginia Tech, Blacksburg, VA, 24061, United States; Virginia Tech Carilion School of Medicine, Virginia Tech, Blacksburg, VA, 24061, United States.
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17
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Han L, Jin H, Zhou L, Zhang X, Fan Z, Dai M, Lin Q, Huang F, Xuan L, Zhang H, Liu Q. Intestinal Microbiota at Engraftment Influence Acute Graft-Versus-Host Disease via the Treg/Th17 Balance in Allo-HSCT Recipients. Front Immunol 2018; 9:669. [PMID: 29740427 PMCID: PMC5928130 DOI: 10.3389/fimmu.2018.00669] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 03/19/2018] [Indexed: 12/20/2022] Open
Abstract
Animal models have indicated that intestinal microbiota influence acute graft-versus-host disease (aGVHD) by modulating immune homeostasis. But, in humans, the mechanism by which the microbiota induces aGVHD remains unclear. In this study, we investigated the relationship between the intestinal microbiota and T cell subsets in patients who undergo allogeneic hematopoietic stem cell transplantation (allo-HSCT) to explore the mechanism by which microbiota induced aGVHD. Based on aGVHD, this study was categorized into two groups: grades II–IV aGVHD (aGVHD group, n = 32) and grade 0–I aGVHD (non-aGVHD group, n = 49). The intestinal microbiota was detected by 16S rRNA gene sequencing, and the T cell subsets and histone 3 (H3) acetylation in CD4+ T cells in the peripheral blood was assayed by flow cytometry at the time of engraftment. The aGVHD group had greater low microbial diversity than the non-aGVHD group (56.3 versus 24.5%, p = 0.004). The bacterial community was depleted of Clostridia (e.g., the Lachnospiraceae and Ruminococcaceae families) and enriched for Gammaproteobacteria (e.g., the Enterobacteriaceae family) in the aGVHD group compared with the non-aGVHD group. The relative abundance of Lachnospiraceae and Ruminococcaceae was positively correlated with the Treg/Th17 ratio counts (r = 0.469 and 0.419; p < 0.001 and <0.001, respectively), whereas Enterobacteriaceae was negatively correlated with the Treg/Th17 ratio (r = −0.277; p = 0.012). The level of acetylated H3 in CD4+ T cells was not only correlated with Lachnospiraceae/Ruminococcaceae, but also with the Treg/Th17 ratio (r = 0.354; p = 0.001). In conclusions, our results suggest that decreased Lachnospiraceae and Ruminococcaceae and increased Enterobacteriaceae, correlate with a Treg/Th17 imbalance, which might be through acetylated H3 in CD4+ T cells. These findings suggest that intestinal microbiota might induce aGVHD by influencing the Treg/Th17 balance.
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Affiliation(s)
- Lijie Han
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hua Jin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lizhi Zhou
- Department of Biostatistics, Southern Medical University, Guangzhou, China
| | - Xin Zhang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiping Fan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Min Dai
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qianyun Lin
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fen Huang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Li Xuan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haiyan Zhang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qifa Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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18
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Chuang YM, Pinn ML, Karakousis PC, Hung CF. Intranasal Immunization with DnaK Protein Induces Protective Mucosal Immunity against Tuberculosis in CD4-Depleted Mice. Front Cell Infect Microbiol 2018; 8:31. [PMID: 29473022 PMCID: PMC5809501 DOI: 10.3389/fcimb.2018.00031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/23/2018] [Indexed: 01/21/2023] Open
Abstract
Mycobacterium tuberculosis (Mtb) remains a global health challenge due to the limited efficacy of the Mtb vaccine in current use, Bacillus Calmette-Guérin (BCG). To date, there is no available vaccine for immunocompromised individuals. Thus, there is an urgent need to develop a new vaccine candidate which can induce mucosal immunity in hosts with different immune statuses. DnaK (HSP70) has been shown to induce protective immunity against Mtb infection when administered by DNA vaccine; however, the protection is inferior to that induced by the BCG vaccine. In our study, we vaccinated C57BL/6J mice with DnaK protein alone. Subcutaneous or intranasal vaccination with DnaK generated IFNγ-secreting CD4+ T cells in the spleen, but only intranasal vaccination generated IL-17-releasing CD4+ T cells in the lungs, even when circulating CD4+ T cells were diminished. Furthermore, intranasal vaccination with DnaK generated tissue resident CD4+ T cells in the lungs. Vaccination with DnaK alone resulted in protective immunity comparable to BCG vaccination against tuberculosis in mice. Our results demonstrate that intranasal vaccination with DnaK can generate mucosal immunity in immunocompromised or immunocompetent mice and DnaK vaccination can generate protection against Mtb similar to BCG, underscoring its potential utility as an Mtb vaccine candidate in humans.
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Affiliation(s)
- Yu-Min Chuang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Michael L Pinn
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Petros C Karakousis
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States.,Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Chien-Fu Hung
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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19
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Wu C, Qin X, Li P, Pan T, Ren W, Li N, Peng Y. Transcriptomic Analysis on Responses of Murine Lungs to Pasteurella multocida Infection. Front Cell Infect Microbiol 2017; 7:251. [PMID: 28676843 PMCID: PMC5476747 DOI: 10.3389/fcimb.2017.00251] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 05/30/2017] [Indexed: 01/09/2023] Open
Abstract
Pasteurella multocida infection in cattle causes serious epidemic diseases and leads to great economic losses in livestock industry; however, little is known about the interaction between host and P. multocida in the lungs. To explore a fully insight into the host responses in the lungs during P. multocida infection, a mouse model of Pasteurella pneumonia was established by intraperitoneal infection, and then transcriptomic analysis of infected lungs was performed. P. multocida localized and grew in murine lungs, and induced inflammation in the lungs, as well as mice death. With transcriptomic analysis, approximately 107 clean reads were acquired. 4236 differently expressed genes (DEGs) were detected during P. multocida infection, of which 1924 DEGs were up-regulated. By gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) enrichments, 5,303 GO enrichments and 116 KEGG pathways were significantly enriched in the context of P. multocida infection. Interestingly, genes related to immune responses, such as pattern recognition receptors (PRRs), chemokines and inflammatory cytokines, were significantly up-regulated, suggesting the key roles of these genes in P. multocida infection. Transcriptomic data showed that IFN-γ/IL-17-related genes were increased, which were validated by qRT-PCR, ELISA, and immunoblotting. Our study characterized the transcriptomic profile of the lungs in mice upon Pasteurella infection, and our findings could provide valuable information with respect to better understanding the responses in mice during P. multocida infection.
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Affiliation(s)
- Chenlu Wu
- College of Animal Science and Technology, Southwest UniversityChongqing, China
| | - Xiaobin Qin
- College of Animal Science and Technology, Southwest UniversityChongqing, China
| | - Pan Li
- College of Animal Science and Technology, Southwest UniversityChongqing, China
| | - Tingting Pan
- College of Animal Science and Technology, Southwest UniversityChongqing, China
| | - Wenkai Ren
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Institute of Subtropical Agriculture, Chinese Academy of SciencesChangsha, China
| | - Nengzhang Li
- College of Animal Science and Technology, Southwest UniversityChongqing, China
| | - Yuanyi Peng
- College of Animal Science and Technology, Southwest UniversityChongqing, China
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