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Wei J, Guo F, Song Y, Feng T, Wang Y, Xu K, Song J, Kaysar E, Abdukayyum R, Lin F, Li K, Li B, Qian Z, Wang X, Wang H, Xu T. Analysis of the components of Mycobacterium tuberculosis heat-resistant antigen (Mtb-HAg) and its regulation of γδ T-cell function. Cell Mol Biol Lett 2024; 29:70. [PMID: 38741147 PMCID: PMC11089708 DOI: 10.1186/s11658-024-00585-7] [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: 11/07/2023] [Accepted: 04/26/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Mycobacterium tuberculosis heat-resistant antigen (Mtb-HAg) is a peptide antigen released from the mycobacterial cytoplasm into the supernatant of Mycobacterium tuberculosis (Mtb) attenuated H37Ra strain after autoclaving at 121 °C for 20 min. Mtb-HAg can specifically induce γδ T-cell proliferation in vitro. However, the exact composition of Mtb-HAg and the protein antigens that are responsible for its function are currently unknown. METHODS Mtb-HAg extracted from the Mtb H37Ra strain was subjected to LC‒MS mass spectrometry. Twelve of the identified protein fractions were recombinantly expressed in Escherichia coli by genetic engineering technology using pET-28a as a plasmid and purified by Ni-NTA agarose resin to stimulate peripheral blood mononuclear cells (PBMCs) from different healthy individuals. The proliferation of γδ T cells and major γδ T-cell subset types as well as the production of TNF-α and IFN-γ were determined by flow cytometry. Their proliferating γδ T cells were isolated and purified using MACS separation columns, and Mtb H37Ra-infected THP-1 was co-cultured with isolated and purified γδ T cells to quantify Mycobacterium viability by counting CFUs. RESULTS In this study, Mtb-HAg from the attenuated Mtb H37Ra strain was analysed by LC‒MS mass spectrometry, and a total of 564 proteins were identified. Analysis of the identified protein fractions revealed that the major protein components included heat shock proteins and Mtb-specific antigenic proteins. Recombinant expression of 10 of these proteins in by Escherichia coli genetic engineering technology was used to successfully stimulate PBMCs from different healthy individuals, but 2 of the proteins, EsxJ and EsxA, were not expressed. Flow cytometry results showed that, compared with the IL-2 control, HspX, GroEL1, and GroES specifically induced γδ T-cell expansion, with Vγ2δ2 T cells as the main subset, and the secretion of the antimicrobial cytokines TNF-α and IFN-γ. In contrast, HtpG, DnaK, GroEL2, HbhA, Mpt63, EsxB, and EsxN were unable to promote γδ T-cell proliferation and the secretion of TNF-α and IFN-γ. None of the above recombinant proteins were able to induce the secretion of TNF-α and IFN-γ by αβ T cells. In addition, TNF-α, IFN-γ-producing γδ T cells inhibit the growth of intracellular Mtb. CONCLUSION Activated γδ T cells induced by Mtb-HAg components HspX, GroES, GroEL1 to produce TNF-α, IFN-γ modulate macrophages to inhibit intracellular Mtb growth. These data lay the foundation for subsequent studies on the mechanism by which Mtb-HAg induces γδ T-cell proliferation in vitro, as well as the development of preventive and therapeutic vaccines and rapid diagnostic reagents.
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MESH Headings
- Humans
- Antigens, Bacterial/immunology
- Antigens, Bacterial/metabolism
- Antigens, Bacterial/genetics
- Mycobacterium tuberculosis/immunology
- Mycobacterium tuberculosis/genetics
- Cell Proliferation
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Interferon-gamma/metabolism
- Interferon-gamma/immunology
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Receptors, Antigen, T-Cell, gamma-delta/immunology
- Receptors, Antigen, T-Cell, gamma-delta/genetics
- Tumor Necrosis Factor-alpha/metabolism
- Leukocytes, Mononuclear/metabolism
- Leukocytes, Mononuclear/immunology
- Bacterial Proteins/metabolism
- Bacterial Proteins/genetics
- Bacterial Proteins/immunology
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Affiliation(s)
- Jing Wei
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Fangzheng Guo
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Yamin Song
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Tong Feng
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Ying Wang
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Kun Xu
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Jianhan Song
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Eldana Kaysar
- Xinjiang Key Laboratory of Hotan Characteristic Chinese Traditional Medicine Research, College of Xinjiang Uyghur Medicine, Hotan, 848099, China
| | - Reyima Abdukayyum
- Xinjiang Key Laboratory of Hotan Characteristic Chinese Traditional Medicine Research, College of Xinjiang Uyghur Medicine, Hotan, 848099, China
| | - Feiyang Lin
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Kangsheng Li
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Baiqing Li
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Zhongqing Qian
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China
| | - Xiaojing Wang
- Anhui Province Key Laboratory of Clinical and Preclinical Research in Respiratory Disease, Bengbu Medical University, Bengbu, 233000, China
| | - Hongtao Wang
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China.
- Xinjiang Key Laboratory of Hotan Characteristic Chinese Traditional Medicine Research, College of Xinjiang Uyghur Medicine, Hotan, 848099, China.
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China.
| | - Tao Xu
- Laboratory Medicine Experimental Center, Laboratory Medicine College, Bengbu Medical University, Bengbu, 233000, China.
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, 233000, China.
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Zhang SX, Lu ZH, Wang MT, Shen YP, Duan L, Guan SY, Chen MX, Lu Y, Yang M, Wang L, Yang GB, Lv WW, Wang JC, Zheng JX. Assessing the association between the circulating levels of inflammatory cytokines and the risk of tuberculosis: A bidirectional two-sample mendelian randomization study. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2023; 116:105524. [PMID: 37952650 DOI: 10.1016/j.meegid.2023.105524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/01/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Numerous observational studies have previously reported an association between inflammatory cytokines and tuberculosis (TB). However, the causal relationship between these factors remains unclear. Consequently, we conducted two-sample Mendelian randomization (MR) analyses to ascertain the causal link between levels of inflammatory cytokines and the risk of TB. METHODS Single nucleotide polymorphisms (SNPs) robustly associated with the cytokines, located in or close to their coding gene. SNP was obtained from genome-wide association studies (GWAS) of 8293 individuals of Finnish. TB data was obtained from the UK Biobank, which included 46,293 individuals of European ancestry (comprising 2277 TB cases and 46,056 controls). Two-sample, bi-directional MR analyses using inverse-variance weighted (IVW) method as the primary analysis. Followed by comprehensive sensitivity analyses to validate the robustness of results. RESULT The study showed that the causal relationship between circulating levels of interleukin (IL)-7 and risk of TB (odds ratio [OR] = 1.001, 95% confidence intervals [CIs]: 1.000, 1.003. p = 0.047). No causal associations were observed between other influencing factors and the occurrence of TB. Furthermore, the analysis revealed that TB infection exhibited negative causal associations with macrophage inflammatory protein 1 alpha ([MIP-1α], OR = 0.007, 95% CI: 0.000, 0.192. p = 0.004), IL-2 (OR = 0.014, 95% CI: 0.010, 0.427. p = 0.014), interleukin-2 receptor alpha chain([IL-2rα], OR = 0.019, 95% CI: 0.001, 0.525. p = 0.019) and basic fibroblast growth factor ([bFGF], OR = 0.066, 95% CI: 0.006, 0.700. p = 0.024). CONCLUSION The study has illuminated the causal link between inflammatory cytokines and TB, thereby enhancing our comprehension of the potential mechanisms underlying TB pathogenesis. This discovery offers promising avenues for the identification of novel therapeutic targets in TB treatment. These insights may ultimately pave the way for more effective treatment approaches, thereby improving patient outcomes.
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Affiliation(s)
- Shun-Xian Zhang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research On Tropical Diseases, National Institute of Parasitic Diseases, Shanghai 200025, China; School of Global Health, Chinese Center for Tropical Diseases Research-Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zhen-Hui Lu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Mei-Ti Wang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - Yu-Ping Shen
- The Second affiliated Hospital of Zhejiang Chinese Medical University, Huangzhou 310012, China
| | - Lei Duan
- Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research On Tropical Diseases, National Institute of Parasitic Diseases, Shanghai 200025, China; School of Global Health, Chinese Center for Tropical Diseases Research-Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Shi-Yang Guan
- Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Mu-Xin Chen
- Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research On Tropical Diseases, National Institute of Parasitic Diseases, Shanghai 200025, China; School of Global Health, Chinese Center for Tropical Diseases Research-Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yan Lu
- Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research On Tropical Diseases, National Institute of Parasitic Diseases, Shanghai 200025, China; School of Global Health, Chinese Center for Tropical Diseases Research-Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Ming Yang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Lei Wang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Guo-Bing Yang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - Wen-Wen Lv
- Clinical Research Institute, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Ji-Chun Wang
- Department of Science and Technology, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
| | - Jin-Xin Zheng
- Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research On Tropical Diseases, National Institute of Parasitic Diseases, Shanghai 200025, China; School of Global Health, Chinese Center for Tropical Diseases Research-Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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3
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Zou S, Xiang Y, Guo W, Zhu Q, Wu S, Tan Y, Yan Y, Shen L, Feng Y, Liang K. Phenotype and function of peripheral blood γδ T cells in HIV infection with tuberculosis. Front Cell Infect Microbiol 2022; 12:1071880. [PMID: 36619740 PMCID: PMC9816428 DOI: 10.3389/fcimb.2022.1071880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Background Although γδ T cells play an essential role in immunity against Human Immunodeficiency Virus (HIV) or Mycobacterium tuberculosis (MTB), they are poorly described in HIV infection with tuberculosis (TB). Methods The phenotypic and functional properties of peripheral blood γδ T cells in patients with HIV/TB co-infection were analyzed compared to healthy controls and patients with HIV mono-infection or TB by direct intracellular cytokine staining (ICS). Results The percentage of Vδ1 subset in HIV/TB group was significantly higher than that in TB group, while the decreased frequency of the Vδ2 and Vγ2Vδ2 subsets were observed in HIV/TB group than in TB group. The percentage of CD4+CD8- Vδ2 subset in HIV/TB group was markedly lower than in TB group. However, the percentage of CD4+CD8+ Vδ2 subset in HIV/TB group was markedly higher than HIV group or TB group. A lower percentage TNF-α and a higher percentage of IL-17A of Vδ2 subset were observed in HIV/TB group than that in HIV mono-infection. The percentage of perforin-producing Vδ2 subset was significantly lower in HIV/TB group than that in HIV group and TB group. Conclusions Our data suggested that HIV/TB co-infection altered the balance of γδ T cell subsets. The influence of HIV/TB co-infection on the function of γδ T cells to produce cytokines was complicated, which will shed light on further investigations on the mechanisms of the immune response against HIV and/or MTB infection.
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Affiliation(s)
- Shi Zou
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
| | - Yanni Xiang
- Department of Intensive Care Medicine, Yichang Central People's Hospital, Yichang, China
| | - Wei Guo
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China,Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, China,Department of Pathology, School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Qi Zhu
- Wuhan Pulmonary Hospital, Wuhan Institute for Tuberculosis Control, Wuhan, China
| | - Songjie Wu
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China,Department of Nosocomial Infection Management, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuting Tan
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
| | - Yajun Yan
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ling Shen
- Department of Microbiology and Immunology, Center for Primate Biomedical Research, University of Illinois College of Medicine, Chicago, United States,*Correspondence: Ling Shen, ; Yong Feng, ; Ke Liang,
| | - Yong Feng
- Department of Medical Microbiology, Wuhan University School of Basic Medical Sciences, Wuhan, China,*Correspondence: Ling Shen, ; Yong Feng, ; Ke Liang,
| | - Ke Liang
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China,Department of Nosocomial Infection Management, Zhongnan Hospital of Wuhan University, Wuhan, China,Hubei Engineering Center for Infectious Disease Prevention, Control and Treatment, Wuhan, China,*Correspondence: Ling Shen, ; Yong Feng, ; Ke Liang,
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4
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Sha S, Shi Y, Tang Y, Jia L, Han X, Liu Y, Li X, Ma Y. Mycobacterium tuberculosis Rv1987 protein induces M2 polarization of macrophages through activating the PI3K/Akt1/mTOR signaling pathway. Immunol Cell Biol 2021; 99:570-585. [PMID: 33469941 DOI: 10.1111/imcb.12436] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 07/29/2020] [Accepted: 01/18/2021] [Indexed: 01/06/2023]
Abstract
Mycobacterium tuberculosis (Mtb) can subvert host immune responses and survive in macrophages. Specific Mtb antigens play a critical role in this process. Rv1987, a secretory protein encoded by the gene rv1987 in the region of difference-2 (RD2) of the Mtb genome, is specifically expressed in pathogenic mycobacteria. Our previous work proved that Rv1987 induced a Th2 response in mice and enhanced mycobacterial survival in mouse lungs, but its effect on macrophages, the most important effector immune cell involved in killing Mtb, remains unclear. In this study, we used an M. smegmatis strain overexpressing Rv1987 protein to infect alveolar macrophages and the macrophage cell line RAW264.7 and analyzed the effect of Rv1987 protein on macrophage polarization. Rv1987 induced M2 polarization in macrophages both in vivo and in vitro. The bactericidal ability of these M2 polarized macrophages decreased remarkably, which resulted in the increased survival of bacteria in macrophages. Proteomics, RT-qPCR and western blotting results revealed that the PI3K/Akt1/mTOR signaling pathway was activated in Rv1987-induced M2 macrophages. Meanwhile, the SHIP molecule, a negative regulator of the PI3K/Akt1/mTOR signaling pathway, was significantly downregulated. These results suggest that Rv1987 plays an important role in modulating the host immune response and could be established as a potential drug target.
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Affiliation(s)
- Shanshan Sha
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Yang Shi
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Yawei Tang
- Department of Immunology, Dalian Medical University, Dalian, China
| | - Liqiu Jia
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Xiuyan Han
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Yuxin Liu
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China
| | - Xia Li
- Department of Immunology, Dalian Medical University, Dalian, China
| | - Yufang Ma
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian, China.,Department of Microbiology, Dalian Medical University, Dalian, China
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5
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Jagadeb M, Pattanaik KP, Rath SN, Sonawane A. Identification and evaluation of immunogenic MHC-I and MHC-II binding peptides from Mycobacterium tuberculosis. Comput Biol Med 2020; 130:104203. [PMID: 33450502 DOI: 10.1016/j.compbiomed.2020.104203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 11/18/2022]
Abstract
Due to several limitations of the only available BCG vaccine, to generate adequate protective immune responses, it is important to develop potent and cost-effective vaccines against tuberculosis (TB). In this study, we have used an immune-informatics approach to identify potential peptide based vaccine targets against TB. The proteome of Mycobacterium tuberculosis (Mtb), the causative agent of TB, was analyzed for secretory or surface localized antigenic proteins as potential vaccine candidates. The T- and B-cell epitopes as well as MHC molecule binding efficiency were identified and mapped in the modelled structures of the selected proteins. Based on antigenicity score and molecular dynamic simulation (MD) studies two peptides namely Pep-9 and Pep-15 were analyzed, modelled and docked with MHC-I and MHC-II structures. Both peptides exhibited no cytotoxicity and were able to induce proinflammatory cytokine secretion in stimulated macrophages. The molecular docking, MD and in-vitro studies of the predicted B and T-cell epitopes of Pep-9 and Pep-15 peptides with the modelled MHC structures exhibited strong binding affinity and antigenic properties, suggesting that the complex is stable, and that these peptides can be considered as a potential candidates for the development of vaccine against TB.
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Affiliation(s)
- Manaswini Jagadeb
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India.
| | | | - Surya Narayan Rath
- Department of Bioinformatics, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, India.
| | - Avinash Sonawane
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India; Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore (IIT Indore), Simrol, Madhya Pradesh, India.
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Rodriguez-Cruz A, Vesin D, Ramon-Luing L, Zuñiga J, Quesniaux VFJ, Ryffel B, Lascurain R, Garcia I, Chávez-Galán L. CD3 + Macrophages Deliver Proinflammatory Cytokines by a CD3- and Transmembrane TNF-Dependent Pathway and Are Increased at the BCG-Infection Site. Front Immunol 2019; 10:2550. [PMID: 31787969 PMCID: PMC6855269 DOI: 10.3389/fimmu.2019.02550] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 10/15/2019] [Indexed: 12/21/2022] Open
Abstract
Macrophages are essential cells of the innate immune response against microbial infections, and they have the ability to adapt under both pro- and anti-inflammatory conditions and develop different functions. A growing body of evidence regarding a novel macrophage subpopulation that expresses CD3 has recently emerged. Here, we explain that human circulating monocytes can be differentiated into CD3+TCRαβ+ and CD3+TCRαβ− macrophages. Both cell subpopulations express on their cell surface HLA family molecules, but only the CD3+TCRαβ+ macrophage subpopulation co-express CD1 family molecules and transmembrane TNF (tmTNF). CD3+TCRαβ+ macrophages secrete IL-1β, IL-6 IP-10, and MCP-1 by both tmTNF- and CD3-dependent pathways, while CD3+TCRαβ− macrophages specifically produce IFN-γ, TNF, and MIP-1β by a CD3-dependent pathway. In this study, we also used a mouse model of BCG-induced pleurisy and demonstrated that CD3+ myeloid cells (TCRαβ+ and TCRαβ− cells) are increased at the infection sites during the acute phase (2 weeks post-infection). Interestingly, cell increment was mediated by tmTNF, and the soluble form of TNF was dispensable. BCG-infection also induced the expression of TNF receptor 2 on CD3+ myeloid cells, which increased after BCG-infection, suggesting that the tmTNF/TNFRs axis plays an important role in the presence or function of these cells in tuberculosis.
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Affiliation(s)
- Adriana Rodriguez-Cruz
- Department of Biochemistry, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Dominique Vesin
- Department of Pathology and Immunology, Faculty of Medicine, Centre Medical Universitaire, University of Geneva, Geneva, Switzerland
| | - Lucero Ramon-Luing
- Laboratory of Integrative Immunology, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas", Mexico City, Mexico
| | - Joaquin Zuñiga
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas", Mexico City, Mexico
| | - Valérie F J Quesniaux
- Experimental Molecular Immunology and Neurogenetics (UMR7355), CNRS and University of Orléans, Orléans, France
| | - Bernhard Ryffel
- Experimental Molecular Immunology and Neurogenetics (UMR7355), CNRS and University of Orléans, Orléans, France
| | - Ricardo Lascurain
- Department of Biochemistry, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Hospital Nacional Homeopático, Secretaría de Salud, Mexico City, Mexico
| | - Irene Garcia
- Department of Pathology and Immunology, Faculty of Medicine, Centre Medical Universitaire, University of Geneva, Geneva, Switzerland
| | - Leslie Chávez-Galán
- Laboratory of Integrative Immunology, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas", Mexico City, Mexico
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Counoupas C, Triccas JA, Britton WJ. Deciphering protective immunity against tuberculosis: implications for vaccine development. Expert Rev Vaccines 2019; 18:353-364. [PMID: 30793629 DOI: 10.1080/14760584.2019.1585246] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION The development of more effective tuberculosis (TB) vaccines is essential for the global control of TB. Recently, there have been major advances in the field, but an important hindrance remains the lack of correlates of protection against TB. This requires each vaccine candidate to undergo clinical efficacy trials based on data from animal protection studies, but the results from animal models do not necessarily predict efficacy in humans. AREAS COVERED In this review we summarize our current knowledge of immune mechanisms that may contribute to protective immunity against TB following vaccination and relate these to protective efficacy in animal models and recent clinical trials. Although some initial trials did not reproduce protection against TB in humans, recent trials have demonstrated promising efficacy for three vaccine approaches. EXPERT OPINION Although CD4+ T lymphocytes are essential for protection against TB, there is no clear correlation between conventional CD4+ or CD8+ T cell responses and protective efficacy of TB vaccines. Recent attention has focused on other immune responses, including donor unrestricted T cells, B lymphocytes, and antibodies. Prospective studies on samples from vaccinated individuals protected in recent trials will allow evaluation of these alternative immune mechanisms as potential correlates of protection.
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Affiliation(s)
- Claudio Counoupas
- a Tuberculosis Research Program Centenary Institute , The University of Sydney , Camperdown , NSW , Australia.,b The University of Sydney , Central Clinical School Faculty of Medicine and Health , Sydney , NSW , Australia
| | - James A Triccas
- a Tuberculosis Research Program Centenary Institute , The University of Sydney , Camperdown , NSW , Australia
| | - Warwick J Britton
- a Tuberculosis Research Program Centenary Institute , The University of Sydney , Camperdown , NSW , Australia.,b The University of Sydney , Central Clinical School Faculty of Medicine and Health , Sydney , NSW , Australia
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Ernst JD. Mechanisms of M. tuberculosis Immune Evasion as Challenges to TB Vaccine Design. Cell Host Microbe 2019; 24:34-42. [PMID: 30001523 DOI: 10.1016/j.chom.2018.06.004] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Tuberculosis (TB) is a large global health problem, in part because of the long period of coevolution of the pathogen, Mycobacterium tuberculosis, and its human host. A major factor that sustains the global epidemic of TB is the lack of a sufficiently effective vaccine. While basic mechanisms of immunity that protect against TB have been identified, attempts to improve immunity to TB by vaccination have been disappointing. This Review discusses the mechanisms used by M. tuberculosis to evade innate and adaptive immunity and that likely limit the efficacy of vaccines developed to date. Despite multiple mechanisms of immune evasion, recent trials have indicated that effective TB vaccines remain an attainable goal. This Review discusses how knowledge from other systems can inform improvements on current vaccine approaches.
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Affiliation(s)
- Joel D Ernst
- Division of Experimental Medicine, University of California, San Francisco, San Francisco, CA, USA.
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9
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Enhancement of Ag85B DNA vaccine immunogenicity against tuberculosis by dissolving microneedles in mice. Vaccine 2018; 36:4471-4476. [DOI: 10.1016/j.vaccine.2018.06.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 06/03/2018] [Accepted: 06/10/2018] [Indexed: 01/22/2023]
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Abstract
Granulomas are organized aggregates of macrophages, often with characteristic morphological changes, and other immune cells. These evolutionarily ancient structures form in response to persistent particulate stimuli-infectious or noninfectious-that individual macrophages cannot eradicate. Granulomas evolved as protective responses to destroy or sequester particles but are frequently pathological in the context of foreign bodies, infections, and inflammatory diseases. We summarize recent findings that suggest that the granulomatous response unfolds in a stepwise program characterized by a series of macrophage activations and transformations that in turn recruit additional cells and produce structural changes. We explore why different granulomas vary and the reasons that granulomas are protective and pathogenic. Understanding the mechanisms and role of granuloma formation may uncover new therapies for the multitude of granulomatous diseases that constitute serious medical problems while enhancing the protective function of granulomas in infections.
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Affiliation(s)
- Antonio J Pagán
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge CB2 0QQ, United Kingdom; , .,MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom
| | - Lalita Ramakrishnan
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge CB2 0QQ, United Kingdom; , .,MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom
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11
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Yan Q, Liu H, Cheng Z, Xue Y, Cheng Z, Dai X, Shan W, Chen F. Immunotherapeutic effect of BCG-polysaccharide nucleic acid powder on Mycobacterium tuberculosis-infected mice using microneedle patches. Drug Deliv 2017; 24:1648-1653. [PMID: 29069980 PMCID: PMC8241181 DOI: 10.1080/10717544.2017.1391892] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 10/08/2017] [Accepted: 10/10/2017] [Indexed: 12/22/2022] Open
Abstract
Polysaccharide nucleic acid fractions of bacillus Calmette-Guérin, termed BCG-PSN, have traditionally been used as immunomodulators in the treatment of dermatitis and allergic diseases. While the sales of injectable BCG-PSN have shown steady growth in recent years, no reports of using BCG-PSN powder or its immunotherapeutic effects exist. Here, BCG-PSN powder was applied directly to the skin to evaluate the immunotherapeutic effects on mice infected with Mycobacterium tuberculosis (MTB). In total, 34 μg of BCG-PSN powder could be loaded into a microneedle patch (MNP). Mice receiving BCG-PSN powder delivered via MNP exhibited significantly increased IFN-γ and TNF-α production in peripheral blood CD4 + T cells and improved pathological changes in their lungs and spleens compared to control group mice. The immunotherapeutic effect of BCG-PSN powder delivered via MNP was better than that delivered via intramuscular injection to some extent. Furthermore, MNPs eliminate the side effects of syringes, and this study demonstrated that BCG-PSN can be clinically administrated in powder form.
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Affiliation(s)
- Qinying Yan
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, PR China
| | - Houming Liu
- Laboratory of Shenzhen Third People’s Hospital, Shenzhen, PR China
| | - Zhigang Cheng
- Wuhan Biocause Pharmaceutical Development Co. Ltd, Wuhan, PR China
| | - Yun Xue
- Lab of Medical Engineering, College of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, PR China
| | - Zhide Cheng
- Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Life Sciences School of Hubei University, Wuhan, PR China
| | - Xuyong Dai
- Wuhan Biocause Pharmaceutical Development Co. Ltd, Wuhan, PR China
| | - Wanshui Shan
- Laboratory of Shenzhen Third People’s Hospital, Shenzhen, PR China
| | - Fan Chen
- Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Life Sciences School of Hubei University, Wuhan, PR China
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12
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Role of Granulocyte-Macrophage Colony-Stimulating Factor Production by T Cells during Mycobacterium tuberculosis Infection. mBio 2017; 8:mBio.01514-17. [PMID: 29066547 PMCID: PMC5654932 DOI: 10.1128/mbio.01514-17] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Mice deficient for granulocyte-macrophage colony-stimulating factor (GM-CSF−/−) are highly susceptible to infection with Mycobacterium tuberculosis, and clinical data have shown that anti-GM-CSF neutralizing antibodies can lead to increased susceptibility to tuberculosis in otherwise healthy people. GM-CSF activates human and murine macrophages to inhibit intracellular M. tuberculosis growth. We have previously shown that GM-CSF produced by iNKT cells inhibits growth of M. tuberculosis. However, the more general role of T cell-derived GM-CSF during infection has not been defined and how GM-CSF activates macrophages to inhibit bacterial growth is unknown. Here we demonstrate that, in addition to nonconventional T cells, conventional T cells also produce GM-CSF during M. tuberculosis infection. Early during infection, nonconventional iNKT cells and γδ T cells are the main source of GM-CSF, a role subsequently assumed by conventional CD4+ T cells as the infection progresses. M. tuberculosis-specific T cells producing GM-CSF are also detected in the peripheral blood of infected people. Under conditions where nonhematopoietic production of GM-CSF is deficient, T cell production of GM-CSF is protective and required for control of M. tuberculosis infection. However, GM-CSF is not required for T cell-mediated protection in settings where GM-CSF is produced by other cell types. Finally, using an in vitro macrophage infection model, we demonstrate that GM-CSF inhibition of M. tuberculosis growth requires the expression of peroxisome proliferator-activated receptor gamma (PPARγ). Thus, we identified GM-CSF production as a novel T cell effector function. These findings suggest that a strategy augmenting T cell production of GM-CSF could enhance host resistance against M. tuberculosis. Mycobacterium tuberculosis is the bacterium that causes tuberculosis, the leading cause of death by any infection worldwide. T cells are critical components of the immune response to Mycobacterium tuberculosis. While gamma interferon (IFN-γ) is a key effector function of T cells during infection, a failed phase IIb clinical trial and other studies have revealed that IFN-γ production alone is not sufficient to control M. tuberculosis. In this study, we demonstrate that CD4+, CD8+, and nonconventional T cells produce GM-CSF during Mycobacterium tuberculosis infection in mice and in the peripheral blood of infected humans. Under conditions where other sources of GM-CSF are absent, T cell production of GM-CSF is protective and is required for control of infection. GM-CSF activation of macrophages to limit bacterial growth requires host expression of the transcription factor PPARγ. The identification of GM-CSF production as a T cell effector function may inform future host-directed therapy or vaccine designs.
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Nagalingam G, Vinuesa CG, Britton WJ, Saunders BM. Modulation of Roquin Function in Myeloid Cells Reduces Mycobacterium tuberculosis-Induced Inflammation. THE JOURNAL OF IMMUNOLOGY 2017; 199:1796-1804. [PMID: 28747346 DOI: 10.4049/jimmunol.1602069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 06/30/2017] [Indexed: 12/21/2022]
Abstract
Damaging inflammation is a hallmark of Mycobacterium tuberculosis infection, and understanding how this is regulated is important for the development of new therapies to limit excessive inflammation. The E3 ubiquitin ligase, Roquin, is involved in immune regulation; however, its role in immunity to M. tuberculosis is unknown. To address this, we infected mice with a point mutation in Roquin1/Rc3h1 (sanroque). Aerosol-infected sanroque mice showed enhanced control of M. tuberculosis infection associated with delayed bacterial dissemination and upregulated TNF production in the lungs after 2 wk. However, this early control of infection was not maintained, and by 8 wk postinfection sanroque mice demonstrated an increased bacterial burden and dysregulated inflammation in the lungs. As the inflammation in the lungs of the sanroque mice could have been influenced by emerging autoimmune conditions that are characteristic of the mice aging, the function of Roquin was examined in immune cell subsets in the absence of autoimmune complications. M. bovis bacillus Calmette-Guérin-primed sanroque T cells transferred into Rag1-/- mice provided equivalent protection in the spleen and liver. Interestingly, the transfer of mycobacteria-specific (P25 CD4+ TCR transgenic) wild-type spleen cells into sanroqueRag1-/- mice actually led to enhanced protection with reduced bacterial load, decreased chemokine expression, and reduced inflammation in the lungs compared with transfers into Rag1-/- mice expressing intact Roquin. These studies suggest that modulation of Roquin in myeloid cells may reduce both inflammation and bacterial growth during the chronic phase of M. tuberculosis infection.
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Affiliation(s)
- Gayathri Nagalingam
- Tuberculosis Research Program, Centenary Institute, Newtown, New South Wales 2042, Australia
| | - Carola G Vinuesa
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Warwick J Britton
- Tuberculosis Research Program, Centenary Institute, Newtown, New South Wales 2042, Australia.,Disciplines of Medicine, Infectious Diseases and Immunology, Sydney Medical School, University of Sydney, Sydney, New South Wales 2006, Australia; and
| | - Bernadette M Saunders
- Tuberculosis Research Program, Centenary Institute, Newtown, New South Wales 2042, Australia; .,School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, New South Wales 2007, Australia
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14
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Chen F, Yan Q, Yu Y, Wu MX. BCG vaccine powder-laden and dissolvable microneedle arrays for lesion-free vaccination. J Control Release 2017; 255:36-44. [PMID: 28390901 PMCID: PMC6091871 DOI: 10.1016/j.jconrel.2017.03.397] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 03/17/2017] [Accepted: 03/31/2017] [Indexed: 12/21/2022]
Abstract
Live attenuated Bacille Calmette-Guerin (BCG) bacillus is the only licensed vaccine for tuberculosis prevention worldwide to date. It must be delivered intradermally to be effective, which causes severe skin inflammation and sometimes, permanent scars. To minimize the side effects, we developed a novel microneedle array (MNA) that could deliver live attenuated freeze-dried BCG powder into the epidermis in a painless, lesion-free, and self-applicable fashion. The MNA was fabricated with biocompatible and dissolvable hyaluronic acid with a deep cave formed in the basal portion of each microneedle, into which BCG powder could be packaged directly. Viability of BCG vaccine packaged in the caves and the mechanical strength of the powder-laden MNA did not alter significantly before and after more than two months of storage at room temperature. Following insertion of the MNA into the skin, individual microneedle shafts melted away by interstitial fluid from the epidermis and upper dermis, exposing the powder to epidermal tissues. The powder sucked interstitial fluid, dissolved slowly, and diffused into the epidermis in a day against the interstitial fluid influx. Vaccination with BCG-MNA caused no overt skin irritation, in marked contrast to intradermal vaccination that provoked severe inflammation and bruise. While causing little skin irritation, vaccination efficacy of BCG-MNAs was comparable to that of intradermal immunization whether it was evaluated by humoral or cellular immunity. This powder-laden and dissolvable MNA represents a novel technology to sufficiently deliver live attenuated vaccine powders into the skin.
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Affiliation(s)
- Fan Chen
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH), Department of Dermatology, Harvard Medical School (HMS), Boston, MA 02114, USA; Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Life Sciences School of Hubei University, 368 Youyi Road, Wuhan 430062, China
| | - Qinying Yan
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH), Department of Dermatology, Harvard Medical School (HMS), Boston, MA 02114, USA; College of Pharmaceutical Sciences, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310032, China
| | - Yang Yu
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH), Department of Dermatology, Harvard Medical School (HMS), Boston, MA 02114, USA
| | - Mei X Wu
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH), Department of Dermatology, Harvard Medical School (HMS), Boston, MA 02114, USA.
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15
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Hsu NJ, Francisco NM, Keeton R, Allie N, Quesniaux VFJ, Ryffel B, Jacobs M. Myeloid and T Cell-Derived TNF Protects against Central Nervous System Tuberculosis. Front Immunol 2017; 8:180. [PMID: 28280495 PMCID: PMC5322283 DOI: 10.3389/fimmu.2017.00180] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 02/07/2017] [Indexed: 01/25/2023] Open
Abstract
Tuberculosis of the central nervous system (CNS-TB) is a devastating complication of tuberculosis, and tumor necrosis factor (TNF) is crucial for innate immunity and controlling the infection. TNF is produced by many cell types upon activation, in particularly the myeloid and T cells during neuroinflammation. Here we used mice with TNF ablation targeted to myeloid and T cell (MT-TNF-/-) to assess the contribution of myeloid and T cell-derived TNF in immune responses during CNS-TB. These mice exhibited impaired innate immunity and high susceptibility to cerebral Mycobacterium tuberculosis infection, a similar phenotype to complete TNF-deficient mice. Further, MT-TNF-/- mice were not able to control T cell responses and cytokine/chemokine production. Thus, our data suggested that collective TNF production by both myeloid and T cells are required to provide overall protective immunity against CNS-TB infection.
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Affiliation(s)
- Nai-Jen Hsu
- Division of Immunology, Department of Pathology, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town , Cape Town , South Africa
| | - Ngiambudulu M Francisco
- Division of Immunology, Department of Pathology, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town , Cape Town , South Africa
| | - Roanne Keeton
- Division of Immunology, Department of Pathology, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town , Cape Town , South Africa
| | - Nasiema Allie
- Division of Immunology, Department of Pathology, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town , Cape Town , South Africa
| | - Valérie F J Quesniaux
- CNRS UMR7355, Experimental and Molecular Immunology and Neurogenetics , Orleans , France
| | - Bernhard Ryffel
- CNRS UMR7355, Experimental and Molecular Immunology and Neurogenetics , Orleans , France
| | - Muazzam Jacobs
- Division of Immunology, Department of Pathology, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; South African Medical Research Council, Cape Town, South Africa; National Health Laboratory Service, Johannesburg, South Africa
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16
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Sakai S, Kauffman KD, Sallin MA, Sharpe AH, Young HA, Ganusov VV, Barber DL. CD4 T Cell-Derived IFN-γ Plays a Minimal Role in Control of Pulmonary Mycobacterium tuberculosis Infection and Must Be Actively Repressed by PD-1 to Prevent Lethal Disease. PLoS Pathog 2016; 12:e1005667. [PMID: 27244558 PMCID: PMC4887085 DOI: 10.1371/journal.ppat.1005667] [Citation(s) in RCA: 226] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 05/10/2016] [Indexed: 11/19/2022] Open
Abstract
IFN-γ–producing CD4 T cells are required for protection against Mycobacterium tuberculosis (Mtb) infection, but the extent to which IFN-γ contributes to overall CD4 T cell-mediated protection remains unclear. Furthermore, it is not known if increasing IFN-γ production by CD4 T cells is desirable in Mtb infection. Here we show that IFN-γ accounts for only ~30% of CD4 T cell-dependent cumulative bacterial control in the lungs over the first six weeks of infection, but >80% of control in the spleen. Moreover, increasing the IFN-γ–producing capacity of CD4 T cells by ~2 fold exacerbates lung infection and leads to the early death of the host, despite enhancing control in the spleen. In addition, we show that the inhibitory receptor PD-1 facilitates host resistance to Mtb by preventing the detrimental over-production of IFN-γ by CD4 T cells. Specifically, PD-1 suppressed the parenchymal accumulation of and pathogenic IFN-γ production by the CXCR3+KLRG1-CX3CR1- subset of lung-homing CD4 T cells that otherwise mediates control of Mtb infection. Therefore, the primary role for T cell-derived IFN-γ in Mtb infection is at extra-pulmonary sites, and the host-protective subset of CD4 T cells requires negative regulation of IFN-γ production by PD-1 to prevent lethal immune-mediated pathology. The development of novel tuberculosis vaccines has been hindered by the poor understanding of the mechanisms of host-protection. It has been long-held that IFN-γ is the principle effector of CD4 T cell-mediated resistance to Mtb infection, but Mtb-specific CD4 T cells produce low amounts of IFN-γ in vivo, leading to the possibility that increasing IFN-γ production by Th1 cells might enhance control of Mtb infection. However, the precise contribution of IFN-γ to CD4 T cell-dependent protection and the outcome of increasing IFN-γ production by CD4 T cells have not been evaluated. Here we show that IFN-γ accounts for only ~30% of the cumulative CD4 T cell-mediated reduction in lung bacterial loads over the first 1.5 months of infection. Moreover, we find that increasing the per capita production of IFN-γ by CD4 T cells leads to the early death of the host. Lastly, we show that suppression of CD4 T cell-derived IFN-γ by the inhibitory receptor PD-1 is essential to prevent lethal disease. Therefore, poor control Mtb infection does not result from defective production of IFN-γ, and strategies to selectively boost it are unwarranted. Furthermore, identifying the primary mechanisms of CD4 T cell-dependent control of Mtb infection should be a priority.
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Affiliation(s)
- Shunsuke Sakai
- T lymphocyte Biology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Keith D. Kauffman
- T lymphocyte Biology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Michelle A. Sallin
- T lymphocyte Biology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Arlene H. Sharpe
- Department of Microbiology and Immunobiology, and Evergrande Center for Immunological Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
| | - Howard A. Young
- Cancer and Inflammation Program, National Cancer Institute, Frederick, Maryland, United States of America
| | - Vitaly V. Ganusov
- Department of Microbiology, University of Tennessee, Knoxville, Tennessee, United States of America
| | - Daniel L. Barber
- T lymphocyte Biology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail:
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17
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Pinto R, Nambiar JK, Leotta L, Counoupas C, Britton WJ, Triccas JA. Influence of phthiocerol dimycocerosate on CD4(+) T cell priming and persistence during Mycobacterium tuberculosis infection. Tuberculosis (Edinb) 2016; 99:25-30. [PMID: 27450001 DOI: 10.1016/j.tube.2016.04.001] [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] [Received: 08/31/2015] [Accepted: 04/01/2016] [Indexed: 11/27/2022]
Abstract
The characterisation of mycobacterial factors that influence or modulate the host immune response may aid the development of more efficacious TB vaccines. We have previously reported that Mycobacterium tuberculosis deficient in export of Phthiocerol Dimycocerosates (DIM) (MT103(ΔdrrC)) is more attenuated than wild type M. tuberculosis and provides sustained protective immunity compared to the existing BCG vaccine. Here we sought to define the correlates of immunity associated with DIM deficiency by assessing the impact of MT103(ΔdrrC) delivery on antigen presenting cell (APC) function and the generation of CD4(+) T cell antigen-specific immunity. MT103(ΔdrrC) was a potent activator of bone marrow derived dendritic cells, inducing significantly greater expression of CD86 and IL-12p40 compared to BCG or the MT103 parental strain. This translated to an increased ability to initiate early in vivo priming of antigen-specific CD4(+) T cells compared to BCG with enhanced release of IFN-γ and TNF upon antigen-restimulation. The heightened immunity induced by MT103(ΔdrrC) correlated with greater persistence within the spleen compared to BCG, however both MT103(ΔdrrC) and BCG were undetectable in the lung at 70 days post-vaccination. In immunodeficient RAG (-/-) mice, MT103(ΔdrrC) was less virulent than the parental MT103 strain, yet MT103(ΔdrrC) infected mice succumbed more rapidly compared to BCG-infected animals. These results suggest that DIM translocation plays a role in APC stimulation and CD4(+) T cell activation during M. tuberculosis infection and highlights the potential of DIM-deficient strains as novel TB vaccine candidates.
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Affiliation(s)
- Rachel Pinto
- Microbial Pathogenesis and Immunity Group, Department of Infectious Diseases and Immunology, University of Sydney, NSW, Australia; Mycobacterial Research Program, Centenary Institute, Newtown, NSW, Australia
| | - Jonathan K Nambiar
- Microbial Pathogenesis and Immunity Group, Department of Infectious Diseases and Immunology, University of Sydney, NSW, Australia; Mycobacterial Research Program, Centenary Institute, Newtown, NSW, Australia
| | - Lisa Leotta
- Microbial Pathogenesis and Immunity Group, Department of Infectious Diseases and Immunology, University of Sydney, NSW, Australia; Mycobacterial Research Program, Centenary Institute, Newtown, NSW, Australia
| | - Claudio Counoupas
- Microbial Pathogenesis and Immunity Group, Department of Infectious Diseases and Immunology, University of Sydney, NSW, Australia; Mycobacterial Research Program, Centenary Institute, Newtown, NSW, Australia
| | - Warwick J Britton
- Mycobacterial Research Program, Centenary Institute, Newtown, NSW, Australia; Discipline of Medicine, Central Clinical School, Sydney Medical School, University of Sydney, NSW, Australia
| | - James A Triccas
- Microbial Pathogenesis and Immunity Group, Department of Infectious Diseases and Immunology, University of Sydney, NSW, Australia; Mycobacterial Research Program, Centenary Institute, Newtown, NSW, Australia.
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18
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Her M, Kavanaugh A. Alterations in immune function with biologic therapies for autoimmune disease. J Allergy Clin Immunol 2016; 137:19-27. [DOI: 10.1016/j.jaci.2015.10.023] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 10/21/2015] [Accepted: 10/28/2015] [Indexed: 02/08/2023]
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19
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Karp CL, Wilson CB, Stuart LM. Tuberculosis vaccines: barriers and prospects on the quest for a transformative tool. Immunol Rev 2015; 264:363-81. [PMID: 25703572 PMCID: PMC4368410 DOI: 10.1111/imr.12270] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The road to a more efficacious vaccine that could be a truly transformative tool for decreasing tuberculosis morbidity and mortality, along with Mycobacterium tuberculosis transmission, is quite daunting. Despite this, there are reasons for optimism. Abetted by better conceptual clarity, clear acknowledgment of the degree of our current immunobiological ignorance, the availability of powerful new tools for dissecting the immunopathogenesis of human tuberculosis, the generation of more creative diversity in tuberculosis vaccine concepts, the development of better fit-for-purpose animal models, and the potential of more pragmatic approaches to the clinical testing of vaccine candidates, the field has promise for delivering novel tools for dealing with this worldwide scourge of poverty.
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Affiliation(s)
- Christopher L Karp
- Discovery and Translational Sciences, Global Health, The Bill & Melinda Gates Foundation, Seattle, WA, USA
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20
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Mayer-Barber KD, Barber DL. Innate and Adaptive Cellular Immune Responses to Mycobacterium tuberculosis Infection. Cold Spring Harb Perspect Med 2015; 5:a018424. [PMID: 26187873 PMCID: PMC4665043 DOI: 10.1101/cshperspect.a018424] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Host resistance to Mycobacterium tuberculosis (Mtb) infection requires the coordinated efforts of innate and adaptive immune cells. Diverse pulmonary myeloid cell populations respond to Mtb with unique contributions to both host-protective and potentially detrimental inflammation. Although multiple cell types of the adaptive immune system respond to Mtb infection, CD4 T cells are the principal antigen-specific cells responsible for containment of Mtb infection, but they can also be major contributors to disease during Mtb infection in several different settings. Here, we will discuss the role of different myeloid populations as well as the dual nature of CD4 T cells in Mtb infection with a primary focus on data generated using in vivo cellular immunological studies in experimental animal models and in humans when available.
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Affiliation(s)
- Katrin D Mayer-Barber
- Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Daniel L Barber
- T Lymphocyte Biology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892
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21
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Kim CH, Yoo SS, Lee SY, Cha SI, Park JY, Lee J. Post-treatment change in Mycobacterium tuberculosis antigen-stimulated tumor necrosis factor-alpha release in patients with active tuberculosis. J Thorac Dis 2015; 7:903-7. [PMID: 26101647 PMCID: PMC4454850 DOI: 10.3978/j.issn.2072-1439.2015.05.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 05/06/2015] [Indexed: 01/22/2023]
Abstract
BACKGROUND Monitoring tuberculosis (TB) treatment response remains challenging due to lack of reliable laboratory markers. In recent years, increased efforts have been exerted toward development of new biomarkers reflecting treatment response appropriately. While performance of interferon-gamma release assays (IGRAs) to monitor anti-TB treatment has been extensively evaluated, there is no data about post-treatment changes in Mycobacterium tuberculosis (MTB) antigen-stimulated tumor necrosis factor-alpha (TNF-α) release in active TB patients. Herein, we explored whether the MTB antigen-stimulated TNF-α release would be useful for monitoring responses to anti-TB treatment. METHODS We compared unstimulated (TNF-αNil), MTB antigen-stimulated (TNF-αAg), and MTB antigen-stimulated minus unstimulated TNF-α levels (TNF-αAg-Nil) in supernatants from QuantiFERON-TB Gold In-Tube tests before and after treatment in 16 active TB patients, 25 latent TB infection (LTBI) subjects, and 10 healthy controls (HC). RESULTS TNF-αAg and TNF-αAg-Nil levels decreased significantly after treatment in patients with active TB. In addition, TNF-αNil, TNF-αAg, and TNF-αAg-Nil levels were significantly higher in untreated active TB patients compared to LTBI subjects and HC. CONCLUSIONS This finding cautiously suggests that MTB Ag-stimulated TNF-α response may be a potential adjunctive marker for monitoring treatment response in active TB patients.
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Affiliation(s)
- Chang Ho Kim
- Department of Internal Medicine, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
| | - Seung Soo Yoo
- Department of Internal Medicine, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
| | - Shin Yup Lee
- Department of Internal Medicine, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
| | - Seung Ick Cha
- Department of Internal Medicine, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
| | - Jae Yong Park
- Department of Internal Medicine, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
| | - Jaehee Lee
- Department of Internal Medicine, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
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22
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Latent tuberculosis infection: myths, models, and molecular mechanisms. Microbiol Mol Biol Rev 2015; 78:343-71. [PMID: 25184558 DOI: 10.1128/mmbr.00010-14] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The aim of this review is to present the current state of knowledge on human latent tuberculosis infection (LTBI) based on clinical studies and observations, as well as experimental in vitro and animal models. Several key terms are defined, including "latency," "persistence," "dormancy," and "antibiotic tolerance." Dogmas prevalent in the field are critically examined based on available clinical and experimental data, including the long-held beliefs that infection is either latent or active, that LTBI represents a small population of nonreplicating, "dormant" bacilli, and that caseous granulomas are the haven for LTBI. The role of host factors, such as CD4(+) and CD8(+) T cells, T regulatory cells, tumor necrosis factor alpha (TNF-α), and gamma interferon (IFN-γ), in controlling TB infection is discussed. We also highlight microbial regulatory and metabolic pathways implicated in bacillary growth restriction and antibiotic tolerance under various physiologically relevant conditions. Finally, we pose several clinically important questions, which remain unanswered and will serve to stimulate future research on LTBI.
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23
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Host Evasion and Exploitation Schemes of Mycobacterium tuberculosis. Cell 2014; 159:1497-509. [DOI: 10.1016/j.cell.2014.11.024] [Citation(s) in RCA: 269] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Indexed: 12/20/2022]
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24
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Principi N, Esposito S. The present and future of tuberculosis vaccinations. Tuberculosis (Edinb) 2014; 95:6-13. [PMID: 25458613 DOI: 10.1016/j.tube.2014.10.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 10/13/2014] [Indexed: 12/21/2022]
Abstract
The clinical, social, and economic burden of tuberculosis (TB) remains high worldwide, thereby highlighting the importance of TB prevention. The bacilli Calmette-Guérin (BCG) vaccine that is currently available can protect younger children but is less effective in adults, the major source of TB transmission. In addition, the emergence of drug-resistant Mycobacterium tuberculosis (Mtb) strains and the high prevalence of HIV infection have significantly complicated TB prognosis and treatment. Together, these data highlight the need for new and more effective vaccines. Recently, several vaccines containing multiple antigens, including some of those specific for dormant Mtb strains, have been developed. These vaccines appear to be the best approach for satisfactory Mtb prevention. However, until a new vaccine is proven more effective and safe than BCG, BCG should remain part of the immunization schedules for neonates and children at risk for TB as a fundamental prophylactic measure.
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Affiliation(s)
- Nicola Principi
- Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Susanna Esposito
- Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.
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25
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Kirschner DE, Hunt CA, Marino S, Fallahi-Sichani M, Linderman JJ. Tuneable resolution as a systems biology approach for multi-scale, multi-compartment computational models. WILEY INTERDISCIPLINARY REVIEWS-SYSTEMS BIOLOGY AND MEDICINE 2014; 6:289-309. [PMID: 24810243 PMCID: PMC4102180 DOI: 10.1002/wsbm.1270] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 03/14/2014] [Accepted: 03/19/2014] [Indexed: 01/19/2023]
Abstract
The use of multi-scale mathematical and computational models to study complex biological processes is becoming increasingly productive. Multi-scale models span a range of spatial and/or temporal scales and can encompass multi-compartment (e.g., multi-organ) models. Modeling advances are enabling virtual experiments to explore and answer questions that are problematic to address in the wet-lab. Wet-lab experimental technologies now allow scientists to observe, measure, record, and analyze experiments focusing on different system aspects at a variety of biological scales. We need the technical ability to mirror that same flexibility in virtual experiments using multi-scale models. Here we present a new approach, tuneable resolution, which can begin providing that flexibility. Tuneable resolution involves fine- or coarse-graining existing multi-scale models at the user's discretion, allowing adjustment of the level of resolution specific to a question, an experiment, or a scale of interest. Tuneable resolution expands options for revising and validating mechanistic multi-scale models, can extend the longevity of multi-scale models, and may increase computational efficiency. The tuneable resolution approach can be applied to many model types, including differential equation, agent-based, and hybrid models. We demonstrate our tuneable resolution ideas with examples relevant to infectious disease modeling, illustrating key principles at work. WIREs Syst Biol Med 2014, 6:225–245. doi:10.1002/wsbm.1270 How to cite this article:WIREs Syst Biol Med 2014, 6:289–309. doi:10.1002/wsbm.1270
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Affiliation(s)
- Denise E Kirschner
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
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26
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Abstract
Clinical trials of vaccines against Mycobacterium tuberculosis are well under way and results are starting to come in. Some of these results are not so encouraging, as exemplified by the latest Aeras-422 and MVA85A trials. Other than empirically determining whether a vaccine reduces the number of cases of active tuberculosis, which is a daunting prospect given the chronic nature of the disease, we have no way of assessing vaccine efficacy. Therefore, investigators seek to identify biomarkers that predict vaccine efficacy. Historically, focus has been on the production of interferon-γ by CD4(+) T cells, but this has not been a useful correlate of vaccine-induced protection. In this Opinion article, we discuss recent advances in our understanding of the immune control of M. tuberculosis and how this knowledge could be used for vaccine design and evaluation.
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Yoo IK, Choung RS, Hyun JJ, Kim SY, Jung SW, Koo JS, Lee SW, Choi JH, Kim H, Lee HS, Keum B, Kim ES, Jeen YT. Incidences of serious infections and tuberculosis among patients receiving anti-tumor necrosis factor-α therapy. Yonsei Med J 2014; 55:442-8. [PMID: 24532516 PMCID: PMC3936648 DOI: 10.3349/ymj.2014.55.2.442] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
PURPOSE Anti-tumor necrosis factor-alpha (TNF-α) medications represent a major advancement in the management of chronic inflammatory diseases. However, these agents are associated with increased risks of tuberculosis (TB) and other serious infections. The aim of this study was to evaluate the incidences of such disease among tertiary hospitals in Korea. MATERIALS AND METHODS We retrospectively studied patients who received anti-TNF-α therapy; we reviewed serious infections including TB that developed within 6 months after initiation of anti-TNF-α therapy. Data concerning patient demographics, types of anti-TNF-α agents, concomitant immunosuppressive drugs use, and infection details were collected. RESULTS A total 175 patients treated with infliximab (n=72) or adalimumab (n=103) with the following conditions were enrolled: Crohn's disease, 34 (19.4%); ulcerative colitis, 20 (11.4%); ankylosing spondylitis, 82 (46.9%); and rheumatoid arthritis, 39 (22.2%). There were 18 cases (6.0%) of serious infections. The most common site of serious infection was the intra-abdomen (n=6), followed by TB (n=3), skin and soft tissue (n=3), bone and joints (n=2), ocular neurons (n=2), lower respiratory tract (n=1), and urinary tract (n=1). Of the 175 patients, only 3 cases showed development of TB. Furthermore, of all those who developed TB, none had taken anti-TB chemoprophylaxis prior to treatment with an anti-TNF agent due to negative screening results. CONCLUSION Serious infections with anti-TNF-α therapy were uncommon among tertiary hospitals in Korea; TB was the second most frequent infection. Nevertheless, there were no TB reactivations after anti-TB chemoprophylaxis. Accordingly, physicians should be aware of TB in subjects undergoing anti-TNF-α therapy, especially in countries with a high prevalence of TB.
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Affiliation(s)
- In Kyung Yoo
- Division of Gastroenterology, Department of Internal Medicine, Korea University Ansan Hospital, Korea University College of Medicine, 123 Jeokgeum-ro, Danwon-gu, Ansan 425-707, Korea.
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28
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Allie N, Grivennikov SI, Keeton R, Hsu NJ, Bourigault ML, Court N, Fremond C, Yeremeev V, Shebzukhov Y, Ryffel B, Nedospasov SA, Quesniaux VFJ, Jacobs M. Prominent role for T cell-derived tumour necrosis factor for sustained control of Mycobacterium tuberculosis infection. Sci Rep 2013; 3:1809. [PMID: 23657146 PMCID: PMC3648802 DOI: 10.1038/srep01809] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Accepted: 04/19/2013] [Indexed: 01/13/2023] Open
Abstract
Tumour Necrosis Factor (TNF) is critical for host control of M. tuberculosis, but the relative contribution of TNF from innate and adaptive immune responses during tuberculosis infection is unclear. Myeloid versus T-cell-derived TNF function in tuberculosis was investigated using cell type-specific TNF deletion. Mice deficient for TNF expression in macrophages/neutrophils displayed early, transient susceptibility to M. tuberculosis but recruited activated, TNF-producing CD4+ and CD8+ T-cells and controlled chronic infection. Strikingly, deficient TNF expression in T-cells resulted in early control but susceptibility and eventual mortality during chronic infection with increased pulmonary pathology. TNF inactivation in both myeloid and T-cells rendered mice critically susceptible to infection with a phenotype resembling complete TNF deficient mice, indicating that myeloid and T-cells are the primary TNF sources collaborating for host control of tuberculosis. Thus, while TNF from myeloid cells mediates early immune function, T-cell derived TNF is essential to sustain protection during chronic tuberculosis infection.
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Affiliation(s)
- Nasiema Allie
- Division of Immunology, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa
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29
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Cilfone NA, Perry CR, Kirschner DE, Linderman JJ. Multi-scale modeling predicts a balance of tumor necrosis factor-α and interleukin-10 controls the granuloma environment during Mycobacterium tuberculosis infection. PLoS One 2013; 8:e68680. [PMID: 23869227 PMCID: PMC3711807 DOI: 10.1371/journal.pone.0068680] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Accepted: 06/03/2013] [Indexed: 01/11/2023] Open
Abstract
Interleukin-10 (IL-10) and tumor necrosis factor-α (TNF-α) are key anti- and pro-inflammatory mediators elicited during the host immune response to Mycobacterium tuberculosis (Mtb). Understanding the opposing effects of these mediators is difficult due to the complexity of processes acting across different spatial (molecular, cellular, and tissue) and temporal (seconds to years) scales. We take an in silico approach and use multi-scale agent based modeling of the immune response to Mtb, including molecular scale details for both TNF-α and IL-10. Our model predicts that IL-10 is necessary to modulate macrophage activation levels and to prevent host-induced tissue damage in a granuloma, an aggregate of cells that forms in response to Mtb. We show that TNF-α and IL-10 parameters related to synthesis, signaling, and spatial distribution processes control concentrations of TNF-α and IL-10 in a granuloma and determine infection outcome in the long-term. We devise an overall measure of granuloma function based on three metrics - total bacterial load, macrophage activation levels, and apoptosis of resting macrophages - and use this metric to demonstrate a balance of TNF-α and IL-10 concentrations is essential to Mtb infection control, within a single granuloma, with minimal host-induced tissue damage. Our findings suggest that a balance of TNF-α and IL-10 defines a granuloma environment that may be beneficial for both host and pathogen, but perturbing the balance could be used as a novel therapeutic strategy to modulate infection outcomes.
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Affiliation(s)
- Nicholas A. Cilfone
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Cory R. Perry
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Denise E. Kirschner
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
- * E-mail: (DEK); (JJL)
| | - Jennifer J. Linderman
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail: (DEK); (JJL)
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30
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The tumor necrosis factor receptor stalk regions define responsiveness to soluble versus membrane-bound ligand. Mol Cell Biol 2012; 32:2515-29. [PMID: 22547679 DOI: 10.1128/mcb.06458-11] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The family of tumor necrosis factor receptors (TNFRs) and their ligands form a regulatory signaling network that controls immune responses. Various members of this receptor family respond differently to the soluble and membrane-bound forms of their respective ligands. However, the determining factors and underlying molecular mechanisms of this diversity are not yet understood. Using an established system of chimeric TNFRs and novel ligand variants mimicking the bioactivity of membrane-bound TNF (mTNF), we demonstrate that the membrane-proximal extracellular stalk regions of TNFR1 and TNFR2 are crucial in controlling responsiveness to soluble TNF (sTNF). We show that the stalk region of TNFR2, in contrast to the corresponding part of TNFR1, efficiently inhibits both the receptor's enrichment/clustering in particular cell membrane regions and ligand-independent homotypic receptor preassembly, thereby preventing sTNF-induced, but not mTNF-induced, signaling. Thus, the stalk regions of the two TNFRs not only have implications for additional TNFR family members, but also provide potential targets for therapeutic intervention.
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31
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Fallahi-Sichani M, Flynn JL, Linderman JJ, Kirschner DE. Differential risk of tuberculosis reactivation among anti-TNF therapies is due to drug binding kinetics and permeability. THE JOURNAL OF IMMUNOLOGY 2012; 188:3169-78. [PMID: 22379032 DOI: 10.4049/jimmunol.1103298] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Increased rates of tuberculosis (TB) reactivation have been reported in humans treated with TNF-α (TNF)-neutralizing drugs, and higher rates are observed with anti-TNF Abs (e.g., infliximab) as compared with TNF receptor fusion protein (etanercept). Mechanisms driving differential reactivation rates and differences in drug action are not known. We use a computational model of a TB granuloma formation that includes TNF/TNF receptor dynamics to elucidate these mechanisms. Our analyses yield three important insights. First, drug binding to membrane-bound TNF critically impairs granuloma function. Second, a higher risk of reactivation induced from Ab-type treatments is primarily due to differences in TNF/drug binding kinetics and permeability. Apoptotic and cytolytic activities of Abs and pharmacokinetic fluctuations in blood concentration of drug are not essential to inducing TB reactivation. Third, we predict specific host factors that, if augmented, would improve granuloma function during anti-TNF therapy. Our findings have implications for the development of safer anti-TNF drugs to treat inflammatory diseases.
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32
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Mayer-Barber KD, Andrade BB, Barber DL, Hieny S, Feng CG, Caspar P, Oland S, Gordon S, Sher A. Innate and adaptive interferons suppress IL-1α and IL-1β production by distinct pulmonary myeloid subsets during Mycobacterium tuberculosis infection. Immunity 2011; 35:1023-34. [PMID: 22195750 PMCID: PMC3246221 DOI: 10.1016/j.immuni.2011.12.002] [Citation(s) in RCA: 327] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 08/27/2011] [Accepted: 10/05/2011] [Indexed: 12/23/2022]
Abstract
Interleukin-1 (IL-1) receptor signaling is necessary for control of Mycobacterium tuberculosis (Mtb) infection, yet the role of its two ligands, IL-1α and IL-1β, and their regulation in vivo are poorly understood. Here, we showed that both IL-1α and IL-1β are critically required for host resistance and identified two multifunctional inflammatory monocyte-macrophage and DC populations that coexpressed both IL-1 species at the single-cell level in lungs of Mtb-infected mice. Moreover, we demonstrated that interferons (IFNs) played important roles in regulating IL-1 production by these cells in vivo. Type I interferons inhibited IL-1 production by both subsets whereas CD4(+) T cell-derived IFN-γ selectively suppressed monocyte-macrophages. These data provide a cellular basis for both the anti-inflammatory effects of IFNs and probacterial functions of type I IFNs during Mtb infection and reveal differential regulation of IL-1 production by distinct cell populations as an additional layer of complexity in the activity of IL-1 in vivo.
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Affiliation(s)
- Katrin D Mayer-Barber
- Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
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33
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Beham AW, Puellmann K, Laird R, Fuchs T, Streich R, Breysach C, Raddatz D, Oniga S, Peccerella T, Findeisen P, Kzhyshkowska J, Gratchev A, Schweyer S, Saunders B, Wessels JT, Möbius W, Keane J, Becker H, Ganser A, Neumaier M, Kaminski WE. A TNF-regulated recombinatorial macrophage immune receptor implicated in granuloma formation in tuberculosis. PLoS Pathog 2011; 7:e1002375. [PMID: 22114556 PMCID: PMC3219713 DOI: 10.1371/journal.ppat.1002375] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 09/28/2011] [Indexed: 12/23/2022] Open
Abstract
Macrophages play a central role in host defense against mycobacterial infection and anti- TNF therapy is associated with granuloma disorganization and reactivation of tuberculosis in humans. Here, we provide evidence for the presence of a T cell receptor (TCR) αβ based recombinatorial immune receptor in subpopulations of human and mouse monocytes and macrophages. In vitro, we find that the macrophage-TCRαβ induces the release of CCL2 and modulates phagocytosis. TNF blockade suppresses macrophage-TCRαβ expression. Infection of macrophages from healthy individuals with mycobacteria triggers formation of clusters that express restricted TCR Vβ repertoires. In vivo, TCRαβ bearing macrophages abundantly accumulate at the inner host-pathogen contact zone of caseous granulomas from patients with lung tuberculosis. In chimeric mouse models, deletion of the variable macrophage-TCRαβ or TNF is associated with structurally compromised granulomas of pulmonary tuberculosis even in the presence of intact T cells. These results uncover a TNF-regulated recombinatorial immune receptor in monocytes/macrophages and demonstrate its implication in granuloma formation in tuberculosis.
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Affiliation(s)
| | - Kerstin Puellmann
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School (MHH), Hannover, Germany
| | - Rebecca Laird
- Department of Surgery, University of Göttingen, Göttingen, Germany
| | - Tina Fuchs
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Roswita Streich
- Department of Surgery, University of Göttingen, Göttingen, Germany
| | | | - Dirk Raddatz
- Department of Medicine, University of Göttingen, Göttingen, Germany
| | - Septimia Oniga
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Teresa Peccerella
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Peter Findeisen
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Julia Kzhyshkowska
- Department of Dermatology, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russia
| | - Alexei Gratchev
- Department of Dermatology, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russia
| | - Stefan Schweyer
- Department of Pathology, University of Göttingen, Göttingen, Germany
| | - Bernadette Saunders
- Medicine, Central Clinical School, Centenary Institute of Cancer Medicine and Cell Biology, Sydney, Australia
| | - Johannes T. Wessels
- Department of Nephrology/Rheumatology, University of Göttingen, Göttingen, Germany
| | - Wiebke Möbius
- Max-Planck-Institute of Experimental Medicine, Department of Neurogenetics, Göttingen, Germany
- Trinity College Dublin, Institute of Molecular Medicine, College Green, Dublin, Ireland
| | - Joseph Keane
- Trinity College Dublin, Institute of Molecular Medicine, College Green, Dublin, Ireland
| | - Heinz Becker
- Department of Surgery, University of Göttingen, Göttingen, Germany
| | - Arnold Ganser
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School (MHH), Hannover, Germany
| | - Michael Neumaier
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Wolfgang E. Kaminski
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
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34
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Fallahi-Sichani M, El-Kebir M, Marino S, Kirschner DE, Linderman JJ. Multiscale computational modeling reveals a critical role for TNF-α receptor 1 dynamics in tuberculosis granuloma formation. THE JOURNAL OF IMMUNOLOGY 2011; 186:3472-83. [PMID: 21321109 DOI: 10.4049/jimmunol.1003299] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Multiple immune factors control host responses to Mycobacterium tuberculosis infection, including the formation of granulomas, which are aggregates of immune cells whose function may reflect success or failure of the host to contain infection. One such factor is TNF-α. TNF-α has been experimentally characterized to have the following activities in M. tuberculosis infection: macrophage activation, apoptosis, and chemokine and cytokine production. Availability of TNF-α within a granuloma has been proposed to play a critical role in immunity to M. tuberculosis. However, in vivo measurement of a TNF-α concentration gradient and activities within a granuloma are not experimentally feasible. Further, processes that control TNF-α concentration and activities in a granuloma remain unknown. We developed a multiscale computational model that includes molecular, cellular, and tissue scale events that occur during granuloma formation and maintenance in lung. We use our model to identify processes that regulate TNF-α concentration and cellular behaviors and thus influence the outcome of infection within a granuloma. Our model predicts that TNF-αR1 internalization kinetics play a critical role in infection control within a granuloma, controlling whether there is clearance of bacteria, excessive inflammation, containment of bacteria within a stable granuloma, or uncontrolled growth of bacteria. Our results suggest that there is an interplay between TNF-α and bacterial levels in a granuloma that is controlled by the combined effects of both molecular and cellular scale processes. Finally, our model elucidates processes involved in immunity to M. tuberculosis that may be new targets for therapy.
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35
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Sharma R, Yadav AB, Muttil P, Kajal H, Misra A. Inhalable microparticles modify cytokine secretion by lung macrophages of infected mice. Tuberculosis (Edinb) 2011; 91:107-10. [DOI: 10.1016/j.tube.2010.11.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Revised: 11/02/2010] [Accepted: 11/13/2010] [Indexed: 01/08/2023]
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36
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Tobin DM, Ramakrishnan L. Comparative pathogenesis of Mycobacterium marinum and Mycobacterium tuberculosis. Cell Microbiol 2008; 10:1027-39. [PMID: 18298637 DOI: 10.1111/j.1462-5822.2008.01133.x] [Citation(s) in RCA: 217] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A thorough understanding of Mycobacterium tuberculosis pathogenesis in humans has been elusive in part because of imperfect surrogate laboratory hosts, each with its own idiosyncrasies. Mycobacterium marinum is the closest genetic relative of the M. tuberculosis complex and is a natural pathogen of ectotherms. In this review, we present evidence that the similar genetic programmes of M. marinum and M. tuberculosis and the corresponding host immune responses reveal a conserved skeleton of Mycobacterium host-pathogen interactions. While both species have made niche-specific refinements, an essential framework has persisted. We highlight genetic comparisons of the two organisms and studies of M. marinum in the developing zebrafish. By pairing M. marinum with the simplified immune system of zebrafish embryos, many of the defining mechanisms of mycobacterial pathogenesis can be distilled and investigated in a tractable host/pathogen pair.
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Affiliation(s)
- David M Tobin
- Department of Microbiology, University of Washington, Seattle, WA, USA.
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37
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Cowley SC, Sedgwick JD, Elkins KL. Differential requirements by CD4+ and CD8+ T cells for soluble and membrane TNF in control of Francisella tularensis live vaccine strain intramacrophage growth. THE JOURNAL OF IMMUNOLOGY 2008; 179:7709-19. [PMID: 18025217 DOI: 10.4049/jimmunol.179.11.7709] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
During primary infection with intracellular bacteria, the membrane-associated form of TNF provides some TNF functions, but the relative contributions during memory responses are not well-characterized. In this study, we determined the role of T cell-derived secreted and membrane-bound TNF (memTNF) during adaptive immunity to Francisella tularensis live vaccine strain (LVS). Although transgenic mice expressing only the memTNF were more susceptible to primary LVS infection than wild-type (WT) mice, LVS-immune WT and memTNF mice both survived maximal lethal secondary Francisella challenge. Generation of CD44(high) memory T cells and clearance of bacteria were similar, although more IFN-gamma and IL-12(p40) were produced by memTNF mice. To examine T cell function, we used an in vitro tissue coculture system that measures control of LVS intramacrophage growth by LVS-immune WT and memTNF-T cells. LVS-immune CD4(+) and CD8(+) T cells isolated from WT and memTNF mice exhibited comparable control of LVS growth in either normal or TNF-alpha knockout macrophages. Although the magnitude of CD4(+) T cell-induced macrophage NO production clearly depended on TNF, control of LVS growth by both CD4(+) and CD8(+) T cells did not correlate with levels of nitrite. Importantly, intramacrophage LVS growth control by CD8(+) T cells, but not CD4(+) T cells, was almost entirely dependent on T cell-expressed TNF, and required stimulation through macrophage TNFRs. Collectively, these data demonstrate that T cell-expressed memTNF is necessary and sufficient for memory T cell responses to this intracellular pathogen, and is particularly important for intramacrophage control of bacterial growth by CD8(+) T cells.
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Affiliation(s)
- Siobhán C Cowley
- Laboratory of Mycobacterial Diseases and Cellular Immunology, Center for Biologics Research and Evaluation, US Food and Drug Administration, Rockville, MD 20852, USA.
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38
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Efficacy of membrane TNF mediated host resistance is dependent on mycobacterial virulence. Tuberculosis (Edinb) 2007; 88:221-34. [PMID: 17950671 DOI: 10.1016/j.tube.2007.08.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2007] [Revised: 08/10/2007] [Accepted: 08/27/2007] [Indexed: 01/09/2023]
Abstract
TNF is required for protection against virulent and non-virulent mycobacterial infections. Here we compared the effect of Tm-TNF and sTNF, two different molecular forms of TNF, in virulent and non-virulent murine challenge models. Using non-virulent Mycobacterium bovis BCG intranasal infection we established that immunity is durably compromised in Tm-TNF mice, with augmented bacilli burden, leading to chronic but non-lethal infection. Acute infection by a virulent Mycobacterium tuberculosis low-dose aerosol challenge was controlled in Tm-TNF mice with bacilli burdens equivalent to that in WT mice and pulmonary pathology characterised by the formation of well-defined, bactericidal granulomas. Protective immunity was however compromised in Tm-TNF mice during the chronic phase of M. tuberculosis infection, with increased lung bacterial growth and inflammatory cell activation, dissolution of granulomas associated with dispersed iNOS expression, increased pulmonary IFNgamma and IL-10 expression but decreased IL-12 production, followed by death. In conclusion, membrane TNF is sufficient to control non-virulent, M. bovis BCG infection, and acute but not chronic infection with virulent M. tuberculosis.
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39
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Goldsack L, Kirman JR. Half-truths and selective memory: Interferon gamma, CD4(+) T cells and protective memory against tuberculosis. Tuberculosis (Edinb) 2007; 87:465-73. [PMID: 17719276 DOI: 10.1016/j.tube.2007.07.001] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2007] [Revised: 07/03/2007] [Accepted: 07/03/2007] [Indexed: 11/26/2022]
Abstract
Efforts to develop a new, more effective vaccine for tuberculosis have been hampered by a lack of understanding of what constitutes a protective memory immune response. While interferon gamma production by CD4(+) T cells after vaccination is commonly used as a surrogate of protective memory immunity, its use in this regard appears to have little predictive value. We argue that this is due to the different requirements for interferon gamma-mediated protection in the primary response versus the memory recall response. In this review, we present evidence that suggests memory CD4(+) T cells can protect against tuberculosis in the absence of interferon gamma, and discuss potential mechanisms that may be involved such as IL-17 and regulatory T cells. A comprehensive understanding of the requirements for protective memory immunity to tuberculosis is essential for the development of an effective vaccine.
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Affiliation(s)
- Lisa Goldsack
- Malaghan Institute of Medical Research, P.O. Box 7060, Wellington South 6021, New Zealand
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Differences in reactivation of tuberculosis induced from anti-TNF treatments are based on bioavailability in granulomatous tissue. PLoS Comput Biol 2007; 3:1909-24. [PMID: 17953477 PMCID: PMC2041971 DOI: 10.1371/journal.pcbi.0030194] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2007] [Accepted: 08/21/2007] [Indexed: 11/19/2022] Open
Abstract
The immune response to Mycobacterium tuberculosis (Mtb) infection is complex. Experimental evidence has revealed that tumor necrosis factor (TNF) plays a major role in host defense against Mtb in both active and latent phases of infection. TNF-neutralizing drugs used to treat inflammatory disorders have been reported to increase the risk of tuberculosis (TB), in accordance with animal studies. The present study takes a computational approach toward characterizing the role of TNF in protection against the tubercle bacillus in both active and latent infection. We extend our previous mathematical models to investigate the roles and production of soluble (sTNF) and transmembrane TNF (tmTNF). We analyze effects of anti-TNF therapy in virtual clinical trials (VCTs) by simulating two of the most commonly used therapies, anti-TNF antibody and TNF receptor fusion, predicting mechanisms that explain observed differences in TB reactivation rates. The major findings from this study are that bioavailability of TNF following anti-TNF therapy is the primary factor for causing reactivation of latent infection and that sTNF--even at very low levels--is essential for control of infection. Using a mathematical model, it is possible to distinguish mechanisms of action of the anti-TNF treatments and gain insights into the role of TNF in TB control and pathology. Our study suggests that a TNF-modulating agent could be developed that could balance the requirement for reduction of inflammation with the necessity to maintain resistance to infection and microbial diseases. Alternatively, the dose and timing of anti-TNF therapy could be modified. Anti-TNF therapy will likely lead to numerous incidents of primary TB if used in areas where exposure is likely.
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Hamdi H, Mariette X, Godot V, Weldingh K, Hamid AM, Prejean MV, Baron G, Lemann M, Puechal X, Breban M, Berenbaum F, Delchier JC, Flipo RM, Dautzenberg B, Salmon D, Humbert M, Emilie D. Inhibition of anti-tuberculosis T-lymphocyte function with tumour necrosis factor antagonists. Arthritis Res Ther 2007; 8:R114. [PMID: 16859506 PMCID: PMC1779425 DOI: 10.1186/ar1994] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2006] [Revised: 06/08/2006] [Accepted: 06/20/2006] [Indexed: 11/30/2022] Open
Abstract
Reactivation of latent Mycobacterium tuberculosis (Mtb) infection is a major complication of anti-tumour necrosis factor (TNF)-α treatment, but its mechanism is not fully understood. We evaluated the effect of the TNF antagonists infliximab (Ifx), adalimumab (Ada) and etanercept (Eta) on anti-mycobacterial immune responses in two conditions: with ex vivo studies from patients treated with TNF antagonists and with the in vitro addition of TNF antagonists to cells stimulated with mycobacterial antigens. In both cases, we analysed the response of CD4+ T lymphocytes to purified protein derivative (PPD) and to culture filtrate protein (CFP)-10, an antigen restricted to Mtb. The tests performed were lymphoproliferation and immediate production of interferon (IFN)-γ. In the 68 patients with inflammatory diseases (rheumatoid arthritis, spondylarthropathy or Crohn's disease), including 31 patients with a previous or latent tuberculosis (TB), 14 weeks of anti-TNF-α treatment had no effect on the proliferation of CD4+ T lymphocytes. In contrast, the number of IFN-γ-releasing CD4+ T lymphocytes decreased for PPD (p < 0.005) and CFP-10 (p < 0.01) in patients with previous TB and for PPD (p < 0.05) in other patients (all vaccinated with Bacille Calmette-Guérin). Treatments with Ifx and with Eta affected IFN-γ release to a similar extent. In vitro addition of TNF antagonists to CD4+ T lymphocytes stimulated with mycobacterial antigens inhibited their proliferation and their expression of membrane-bound TNF (mTNF). These effects occurred late in cultures, suggesting a direct effect of TNF antagonists on activated mTNF+ CD4+ T lymphocytes, and Ifx and Ada were more efficient than Eta. Therefore, TNF antagonists have a dual action on anti-mycobacterial CD4+ T lymphocytes. Administered in vivo, they decrease the frequency of the subpopulation of memory CD4+ T lymphocytes rapidly releasing IFN-γ upon challenge with mycobacterial antigens. Added in vitro, they inhibit the activation of CD4+ T lymphocytes by mycobacterial antigens. Such a dual effect may explain the increased incidence of TB in patients treated with TNF antagonists as well as possible differences between TNF antagonists for the incidence and the clinical presentation of TB reactivation.
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MESH Headings
- Adalimumab
- Antibodies, Bacterial/biosynthesis
- Antibodies, Bacterial/drug effects
- Antibodies, Monoclonal/administration & dosage
- Antibodies, Monoclonal/pharmacology
- Antibodies, Monoclonal, Humanized
- Antigens, Bacterial/immunology
- Arthritis, Rheumatoid/complications
- Arthritis, Rheumatoid/immunology
- Bacterial Proteins/immunology
- CD4-Positive T-Lymphocytes/metabolism
- Cells, Cultured
- Crohn Disease/complications
- Crohn Disease/immunology
- Drug Administration Schedule
- Etanercept
- Humans
- Immunoglobulin G/administration & dosage
- Immunoglobulin G/pharmacology
- Infliximab
- Lymphocyte Activation/drug effects
- Mycobacterium tuberculosis/immunology
- Receptors, Tumor Necrosis Factor/administration & dosage
- Spondylarthropathies/complications
- Spondylarthropathies/immunology
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
- Tuberculin/immunology
- Tuberculosis/complications
- Tumor Necrosis Factor-alpha/antagonists & inhibitors
- Tumor Necrosis Factors/metabolism
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Affiliation(s)
- Haïfa Hamdi
- INSERM UMR-S764, Service d'Hépato-Gastro-Entérologie and Service de Microbiologie-Immunologie Biologique, Hôpital Antoine Béclère, Assistance Publique – Hôpitaux de Paris (AP-HP), Institut Paris-Sud sur les Cytokines, Université Paris-Sud, INSERM U764, 32 rue des Carnets, 92140, Clamart, France
| | - Xavier Mariette
- Service de Rhumatologie, Hôpital Bicêtre, AP-HP, Université Paris-Sud, INSERM U802, 78 rue du Général Leclerc, 94275 Le Kremlin-Bicêtre, France
| | - Véronique Godot
- INSERM UMR-S764, Service d'Hépato-Gastro-Entérologie and Service de Microbiologie-Immunologie Biologique, Hôpital Antoine Béclère, Assistance Publique – Hôpitaux de Paris (AP-HP), Institut Paris-Sud sur les Cytokines, Université Paris-Sud, INSERM U764, 32 rue des Carnets, 92140, Clamart, France
| | - Karin Weldingh
- Department of Infectious Disease and Immunology, Statens Serum Institut, Copenhagen S, 5 Artillerivej, 2300 Denmark
| | - Abdul Monem Hamid
- Service de Pneumologie, Hôpital A. Béclère, AP-HP, Université Paris-Sud, 157 rue de la Porte-de-Trivaux, 92140 Clamart, France
| | - Maria-Victoria Prejean
- INSERM UMR-S764, Service d'Hépato-Gastro-Entérologie and Service de Microbiologie-Immunologie Biologique, Hôpital Antoine Béclère, Assistance Publique – Hôpitaux de Paris (AP-HP), Institut Paris-Sud sur les Cytokines, Université Paris-Sud, INSERM U764, 32 rue des Carnets, 92140, Clamart, France
| | - Gabriel Baron
- Département d'Epidémiologie, Biostatistique et Recherche Clinique, Groupe Hospitalier Bichat Claude-Bernard, AP-HP, Université Paris VII, INSERM U738, 46 rue Henri-Huchard, 75018 Paris, France
| | - Marc Lemann
- Service de Gastro-entérologie, Hôpital St. Louis, AP-HP, 1 avenue Claude-vellefaux, 75475 Paris, France
| | - Xavier Puechal
- Service de Rhumatologie, Centre hospitalier du Mans, 194 avenue Rubillard, 72037 Le Mans, France
| | - Maxime Breban
- Service de Rhumatologie, Hôpital A. Paré, AP-HP, 9 avenue Charles-de-Gaulle, 92100 Boulogne, France
| | - Francis Berenbaum
- Service de Rhumatologie, Hôpital St. Antoine, AP-HP, 184 rue du Faubourg Saint-Antoine, 75012 Paris, France
| | - Jean-Charles Delchier
- Service de Gastro-entérologie, Hôpital H. Mondor, AP-HP, 51 rue du Maréchal de Lattre de Tassigny, 94400 Créteil, France
| | - René-Marc Flipo
- Service de Rhumatologie, Hôpital C. Huriez, rue Michel Polonovski, 59037 Lille, France
| | - Bertrand Dautzenberg
- Service de Pneumologie, Hôpital Pitié-Salpétrière, AP-HP, 83 boulevard de l'Hôpital, 75013 Paris, France
| | - Dominique Salmon
- Service de Médecine interne et maladies infectieuses, Hôpital Cochin, 27 rue du Faubourg Saint Jacques, 75014 Paris, France
| | - Marc Humbert
- Service de Pneumologie, Hôpital A. Béclère, AP-HP, Université Paris-Sud, 157 rue de la Porte-de-Trivaux, 92140 Clamart, France
| | - Dominique Emilie
- INSERM UMR-S764, Service d'Hépato-Gastro-Entérologie and Service de Microbiologie-Immunologie Biologique, Hôpital Antoine Béclère, Assistance Publique – Hôpitaux de Paris (AP-HP), Institut Paris-Sud sur les Cytokines, Université Paris-Sud, INSERM U764, 32 rue des Carnets, 92140, Clamart, France
- Service de Microbiologie – Immunologie Biologique, Hôpital A. Béclère, AP-HP Université Paris-Sud,, 157 rue de la Porte-de-Trivaux, 92140 Clamart, France
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42
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Swaim LE, Connolly LE, Volkman HE, Humbert O, Born DE, Ramakrishnan L. Mycobacterium marinum infection of adult zebrafish causes caseating granulomatous tuberculosis and is moderated by adaptive immunity. Infect Immun 2006; 74:6108-17. [PMID: 17057088 PMCID: PMC1695491 DOI: 10.1128/iai.00887-06] [Citation(s) in RCA: 216] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The zebrafish, a genetically tractable model vertebrate, is naturally susceptible to tuberculosis caused by Mycobacterium marinum, a close genetic relative of the causative agent of human tuberculosis, Mycobacterium tuberculosis. We previously developed a zebrafish embryo-M. marinum infection model to study host-pathogen interactions in the context of innate immunity. Here, we have constructed a flowthrough fish facility for the large-scale longitudinal study of M. marinum-induced tuberculosis in adult zebrafish where both innate and adaptive immunity are operant. We find that zebrafish are exquisitely susceptible to M. marinum strain M. Intraperitoneal injection of five organisms produces persistent granulomatous tuberculosis, while the injection of approximately 9,000 organisms leads to acute, fulminant disease. Bacterial burden, extent of disease, pathology, and host mortality progress in a time- and dose-dependent fashion. Zebrafish tuberculous granulomas undergo caseous necrosis, similar to human tuberculous granulomas. In contrast to mammalian tuberculous granulomas, zebrafish lesions contain few lymphocytes, calling into question the role of adaptive immunity in fish tuberculosis. However, like rag1 mutant mice infected with M. tuberculosis, we find that rag1 mutant zebrafish are hypersusceptible to M. marinum infection, demonstrating that the control of fish tuberculosis is dependent on adaptive immunity. We confirm the previous finding that M. marinum DeltaRD1 mutants are attenuated in adult zebrafish and extend this finding to show that DeltaRD1 predominantly produces nonnecrotizing, loose macrophage aggregates. This observation suggests that the macrophage aggregation defect associated with DeltaRD1 attenuation in zebrafish embryos is ongoing during adult infection.
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Affiliation(s)
- Laura E Swaim
- Department of Microbiology, Box 357242, University of Washington, Seattle, WA 98195, USA
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43
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Rao V, Gao F, Chen B, Jacobs WR, Glickman MS. Trans-cyclopropanation of mycolic acids on trehalose dimycolate suppresses Mycobacterium tuberculosis -induced inflammation and virulence. J Clin Invest 2006; 116:1660-7. [PMID: 16741578 PMCID: PMC1464906 DOI: 10.1172/jci27335] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2005] [Accepted: 03/14/2006] [Indexed: 11/17/2022] Open
Abstract
Recent studies have shown that fine structural modifications of Mycobacterium tuberculosis cell envelope lipids mediate host cell immune activation during infection. One such alteration in lipid structure is cis-cyclopropane modification of the mycolic acids on trehalose dimycolate (TDM) mediated by proximal cyclopropane synthase of alpha mycolates (pcaA), a proinflammatory lipid modification during early infection. Here we examine the pathogenetic role and immunomodulatory function of mycolic acid cyclopropane stereochemistry by characterizing an M. tuberculosis cyclopropane-mycolic acid synthase 2 (cmaA2) null mutant (Delta cmaA2) that lacks trans-cyclopropanation of mycolic acids. Although titers of WT and Delta cmaA2 organisms were identical during mouse infection, Delta cmaA2 bacteria were hypervirulent while inducing larger granulomas than WT M. tuberculosis. The hypervirulence of the Delta cmaA2 strain depended on host TNF-alpha and IFN-gamma. Loss of trans-cyclopropanation enhanced M. tuberculosis-induced macrophage inflammatory responses, a phenotype that was transferable with petroleum ether extractable lipids. Finally, purified TDM lacking trans-cyclopropane rings was 5-fold more potent in stimulating macrophages. These results establish cmaA2-dependent trans-cyclopropanation of TDM as a suppressor of M. tuberculosis-induced inflammation and virulence. In addition, cyclopropane stereochemistries on mycolic acids interact directly with host cells to both positively and negatively influence host innate immune activation.
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Affiliation(s)
- Vivek Rao
- Immunology Program, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Howard Hughes Medical Institute, Department of Microbiology and Immunology, Albert Einstein College of Medicine, New York, New York, USA.
Division of Infectious Diseases, Memorial Sloan-Kettering Cancer Center, New York, New York, USA
| | - Feng Gao
- Immunology Program, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Howard Hughes Medical Institute, Department of Microbiology and Immunology, Albert Einstein College of Medicine, New York, New York, USA.
Division of Infectious Diseases, Memorial Sloan-Kettering Cancer Center, New York, New York, USA
| | - Bing Chen
- Immunology Program, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Howard Hughes Medical Institute, Department of Microbiology and Immunology, Albert Einstein College of Medicine, New York, New York, USA.
Division of Infectious Diseases, Memorial Sloan-Kettering Cancer Center, New York, New York, USA
| | - William R. Jacobs
- Immunology Program, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Howard Hughes Medical Institute, Department of Microbiology and Immunology, Albert Einstein College of Medicine, New York, New York, USA.
Division of Infectious Diseases, Memorial Sloan-Kettering Cancer Center, New York, New York, USA
| | - Michael S. Glickman
- Immunology Program, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Howard Hughes Medical Institute, Department of Microbiology and Immunology, Albert Einstein College of Medicine, New York, New York, USA.
Division of Infectious Diseases, Memorial Sloan-Kettering Cancer Center, New York, New York, USA
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44
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Mufti AH, Toye BW, Mckendry RRJ, Angel JB. Mycobacterium abscessus infection after use of tumor necrosis factor α inhibitor therapy: case report and review of infectious complications associated with tumor necrosis factor α inhibitor use. Diagn Microbiol Infect Dis 2005; 53:233-8. [PMID: 16249064 DOI: 10.1016/j.diagmicrobio.2005.06.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2005] [Accepted: 06/08/2005] [Indexed: 12/12/2022]
Abstract
Tumor necrosis factor alpha (TNF-alpha) inhibitors, such as infliximab and etanercept, are now frequently used in the treatment of inflammatory diseases including rheumatoid arthritis (RA) and Crohn's disease. As an apparent result of their immune modulating activity, there has been an observed association between the use of these agents and the development of a wide range of infections, most notably Mycobacterium tuberculosis. We describe a case of infection with Mycobacterium abscessus in a 67-year-old woman receiving infliximab as a component of her therapy for RA. This case, along with extensive reports in the medical literature, illustrate how treatment with inhibitors of TNF-alpha has the potential to result in a wide range of infectious complications, including rapid growing Mycobacterium.
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Affiliation(s)
- Areej H Mufti
- Division of Medical Microbiology, Department of Laboratory Medicine, Ottawa Hospital-General Campus, and the University of Ottawa, Ontario, Canada K1H 8L6
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45
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Saunders BM, Tran S, Ruuls S, Sedgwick JD, Briscoe H, Britton WJ. Transmembrane TNF is sufficient to initiate cell migration and granuloma formation and provide acute, but not long-term, control of Mycobacterium tuberculosis infection. THE JOURNAL OF IMMUNOLOGY 2005; 174:4852-9. [PMID: 15814712 DOI: 10.4049/jimmunol.174.8.4852] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
TNF is critical for immunity against Mycobacterium tuberculosis infection; however, the relative contributions of the soluble and transmembrane forms of TNF in this immunity are unknown. Using memTNF mice, which express only the transmembrane form of TNF, we have addressed this question. Wild-type (WT), TNF-/-, and transmembrane TNF (memTNF) mice were infected with M. tuberculosis by aerosol. TNF-/- mice developed overwhelming infection with extensive pulmonary necrosis and died after only 33 days. memTNF mice, like WT mice, contained bacterial growth for over 16 wk, developed an Ag-specific T cell response, and initially displayed compact granulomas, comprised of both lymphocytes and macrophages. Expression of mRNA for the chemokines CXCL10, CCL3, CCL5, and CCL7 was comparable in both WT and memTNF mice. As the infection progressed, however, the pulmonary lesions in memTNF mice became larger and more diffuse, with increased neutrophil accumulation and necrosis. This was accompanied by increased influx of activated memory T cells into the lungs of memTNF mice. Eventually, these mice succumbed to infection with a mean time to death of 170 days. The expression of memTNF on T cells is functionally important because the transfer of T cells from memTNF, but not TNF-/- mice, into either RAG-/- or TNF-/- mice conferred the same survival advantage on the M. tuberculosis-infected recipient mice, as the transfer of WT T cells. Therefore, memTNF, in the absence of soluble TNF, is sufficient to control acute, but not chronic, M. tuberculosis infection, in part through its expression on T cells.
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Affiliation(s)
- Bernadette M Saunders
- Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales, Australia.
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46
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Grivennikov SI, Tumanov AV, Liepinsh DJ, Kruglov AA, Marakusha BI, Shakhov AN, Murakami T, Drutskaya LN, Förster I, Clausen BE, Tessarollo L, Ryffel B, Kuprash DV, Nedospasov SA. Distinct and nonredundant in vivo functions of TNF produced by t cells and macrophages/neutrophils: protective and deleterious effects. Immunity 2005; 22:93-104. [PMID: 15664162 DOI: 10.1016/j.immuni.2004.11.016] [Citation(s) in RCA: 156] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2004] [Revised: 11/06/2004] [Accepted: 11/24/2004] [Indexed: 11/16/2022]
Abstract
Tumor necrosis factor (TNF, TNFalpha) is implicated in various pathophysiological processes and can be either protective, as in host defense, or deleterious, as in autoimmunity or toxic shock. To uncover the in vivo functions of TNF produced by different cell types, we generated mice with TNF ablation targeted to various leukocyte subsets. Systemic TNF in response to lipopolysaccharide was produced mainly by macrophages and neutrophils. This source of TNF was indispensable for resistance to an intracellular pathogen, Listeria, whereas T-cell-derived TNF was important for protection against high bacterial load. Additionally, both T-cell-derived TNF and macrophage-derived TNF had critical and nonredundant functions in the promotion of autoimmune hepatitis. Our data suggest that T-cell-specific TNF ablation may provide a therapeutic advantage over systemic blockade.
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Affiliation(s)
- Sergei I Grivennikov
- Laboratory of Molecular Immunology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences and Belozersky Institute of Physico-Chemical Biology, 32 Vavilov Str., 119991 Moscow, Russia
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