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Yi L, Yan J, Wei P, Long S, Wang X, Gu M, Yang B, Chen Y, Ma S, Wang C, Zheng M, Sun Q, Shi Y, Wang G. The levels of soluble CD137 are increased in tuberculosis patients and associated with disease severity and prognosis. Eur J Immunol 2024; 54:e2350796. [PMID: 38922884 DOI: 10.1002/eji.202350796] [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: 09/29/2023] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 06/28/2024]
Abstract
Tuberculosis (TB) was the leading cause of death from a single infectious agent before the coronavirus pandemic. Therefore, it is important to search for severity biomarkers and devise appropriate therapies. A total of 139 pulmonary TB (PTB) patients and 80 healthy controls (HCs) were recruited for plasma soluble CD137 (sCD137) detection through ELISA. Moreover, pleural effusion sCD137 levels were measured in 85 TB patients and 36 untreated lung cancer patients. The plasma cytokine levels in 64 patients with PTB and blood immune cell subpopulations in 68 patients with PTB were analysed via flow cytometry. Blood sCD137 levels were higher in PTB patients (p = 0.012) and correlated with disease severity (p = 0.0056). The level of sCD137 in tuberculous pleurisy effusion (TPE) was markedly higher than that in malignant pleurisy effusion (p = 0.018). Several blood cytokines, such as IL-6 (p = 0.0147), IL-8 (p = 0.0477), IP-10 (p ≤ 0.0001) and MCP-1 (p = 0.0057), and some laboratory indices were significantly elevated in severe PTB (SE) patients, but the percentages of total lymphocytes (p = 0.002) and cytotoxic T cells (p = 0.036) were significantly lower in SE patients than in non-SE patients. In addition, the sCD137 level was negatively correlated with the percentage of total lymphocytes (p = 0.0008) and cytotoxic T cells (p = 0.0021), and PTB patients with higher plasma sCD137 levels had significantly shorter survival times (p = 0.0041). An increase in sCD137 is a potential biomarker for severe TB and indicates a poor prognosis.
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Affiliation(s)
- Ling Yi
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Jun Yan
- Department of Clinical Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Panjian Wei
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Sibo Long
- Department of Clinical Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Xiaojue Wang
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Meng Gu
- Department of Central Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Bin Yang
- Department of Clinical Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Yan Chen
- Department of Clinical Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Shang Ma
- Department of Clinical Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Chaohong Wang
- Department of Clinical Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Maike Zheng
- Department of Clinical Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Qing Sun
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing, China
| | - Yiheng Shi
- Department of Clinical Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Guirong Wang
- Department of Clinical Laboratory, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
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Mo W, Cui Z, Zhao J, Xian X, Huang M, Liu J. The predictive value of TNF family for pulmonary tuberculosis: a pooled causal effect analysis of multiple datasets. Front Immunol 2024; 15:1398403. [PMID: 38835752 PMCID: PMC11148272 DOI: 10.3389/fimmu.2024.1398403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 05/06/2024] [Indexed: 06/06/2024] Open
Abstract
Objective Despite extensive research on the relationship between pulmonary tuberculosis (PTB) and inflammatory factors, more robust causal evidence has yet to emerge. Therefore, this study aims to screen for inflammatory proteins that may contribute to the susceptibility to PTB in different populations and to explain the diversity of inflammatory and immune mechanisms of PTB in different ethnicity. Methods The inverse variance weighted (IVW) model of a two-sample Mendelian Randomization (MR) study was employed to conduct causal analysis on data from a genome-wide association study (GWAS). This cohort consisting PTB GWAS datasets from two European and two East Asian populations, as well as 91 human inflammatory proteins collected from 14,824 participants. Colocalization analysis aimed to determine whether the input inflammatory protein and PTB shared the same causal single nucleotide polymorphisms (SNPs) variation within the fixed region, thereby enhancing the robustness of the MR Analysis. Meta-analyses were utilized to evaluate the combined causal effects among different datasets. Results In this study, we observed a significant negative correlation between tumor necrosis factor-beta levels (The alternative we employ is Lymphotoxin-alpha, commonly referred to as LT) (P < 0.05) and tumor necrosis factor receptor superfamily member 9 levels (TNFRSF9) (P < 0.05). These two inflammatory proteins were crucial protective factors against PTB. Additionally, there was a significant positive correlation found between interleukin-20 receptor subunit alpha levels (IL20Ra) (P < 0.05), which may elevate the risk of PTB. Colocalization analysis revealed that there was no overlap in the causal variation between LT and PTB SNPs. A meta-analysis further confirmed the significant combined effect of LT, TNFRSF9, and IL20Ra in East Asian populations (P < 0.05). Conclusions Levels of specific inflammatory proteins may play a crucial role in triggering an immune response to PTB. Altered levels of LT and TNFRSF9 have the potential to serve as predictive markers for PTB development, necessitating further clinical validation in real-world settings to ascertain the impact of these inflammatory proteins on PTB.
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Affiliation(s)
- Wenxiu Mo
- School of Public Health and Management, Youjiang Medical University for Nationalities, Baise, China
| | - Zhezhe Cui
- Guangxi Key Laboratory of Major Infectious Disease Prevention and Control and Biosafety Emergency Response, Guangxi Key Discipline Platform of Tuberculosis Control, Guangxi Centre for Disease Control and Prevention, Nanning, China
| | - Jingming Zhao
- Guangxi Key Laboratory of Major Infectious Disease Prevention and Control and Biosafety Emergency Response, Guangxi Key Discipline Platform of Tuberculosis Control, Guangxi Centre for Disease Control and Prevention, Nanning, China
| | - Xiaomin Xian
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, China
| | - Minying Huang
- Guangxi Key Laboratory of Major Infectious Disease Prevention and Control and Biosafety Emergency Response, Guangxi Key Discipline Platform of Tuberculosis Control, Guangxi Centre for Disease Control and Prevention, Nanning, China
| | - Jun Liu
- Department of Neurosurgery, Liuzhou People's Hospital, Liuzhou, China
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Kam NW, Lo AWI, Hung DTY, Ko H, Wu KC, Kwong DLW, Lam KO, Leung TW, Che CM, Lee VHF. Shift in Tissue-Specific Immune Niches and CD137 Expression in Tuberculoma of Pembrolizumab-Treated Nasopharyngeal Carcinoma Patients. Cancers (Basel) 2024; 16:268. [PMID: 38254759 PMCID: PMC10813936 DOI: 10.3390/cancers16020268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 12/29/2023] [Accepted: 12/29/2023] [Indexed: 01/24/2024] Open
Abstract
The use of immune checkpoint inhibitors (ICIs) in cancer treatment has shown promise but can also have unintended consequences, such as reactivating latent tuberculosis (TB). To develop treatments that address ICIs-related adverse events, it is essential to understand cellular heterogeneity across healthy and pathological tissues. We performed cross-tissue multiplexed staining analysis on samples from two patients with TB reactivation during pembrolizumab treatment for metastatic nasopharyngeal carcinoma. CD8+ T cells, rather than CD4+ T cells, accumulated preferentially in the tuberculoma and were associated with increased production of IFNγ and expression of CD137. Additionally, CD137 enrichment played a role in the spatial organization of the tuberculoma, with specific interaction limited to spatial proximal cells between IFNγ+ CD137+ CD8+ T cells and IL12+ CD137+ type-1 macrophages. This unique feature was not observed in non-tumoral or tumoral tissues. Our analysis of public transcriptomic datasets supported the notion that this cellular interaction was more prominent in patients with durable ICI responses compared to those with non-ICI-related TB. We suggest that shifts towards CD137-rich immune niches are correlated with both off-target immune-related adverse events and anti-tumor efficacy. Targeting the tumor microenvironment through conditional activation of anti-CD137 signaling in combination with ICIs can modulate the reactivity of T cells and macrophages for localized tumor killing without the potential off-target immune-related risks associated with ICIs alone.
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Affiliation(s)
- Ngar Woon Kam
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (N.W.K.); (D.T.Y.H.); (K.C.W.); (D.L.W.K.); (K.O.L.); (T.W.L.)
- Laboratory of Synthetic Chemistry and Chemical Biology Limited, Hong Kong 999077, China;
| | | | - Desmond Tae Yang Hung
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (N.W.K.); (D.T.Y.H.); (K.C.W.); (D.L.W.K.); (K.O.L.); (T.W.L.)
| | - Ho Ko
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong 999077, China;
- Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong 999077, China
| | - Ka Chun Wu
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (N.W.K.); (D.T.Y.H.); (K.C.W.); (D.L.W.K.); (K.O.L.); (T.W.L.)
- Laboratory of Synthetic Chemistry and Chemical Biology Limited, Hong Kong 999077, China;
| | - Dora Lai Wan Kwong
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (N.W.K.); (D.T.Y.H.); (K.C.W.); (D.L.W.K.); (K.O.L.); (T.W.L.)
- Clinical Oncology Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, China
| | - Ka On Lam
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (N.W.K.); (D.T.Y.H.); (K.C.W.); (D.L.W.K.); (K.O.L.); (T.W.L.)
- Clinical Oncology Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, China
| | - To Wai Leung
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (N.W.K.); (D.T.Y.H.); (K.C.W.); (D.L.W.K.); (K.O.L.); (T.W.L.)
| | - Chi Ming Che
- Laboratory of Synthetic Chemistry and Chemical Biology Limited, Hong Kong 999077, China;
- Department of Chemistry, Faculty of Science, The University of Hong Kong, Hong Kong 999077, China
| | - Victor Ho Fun Lee
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China; (N.W.K.); (D.T.Y.H.); (K.C.W.); (D.L.W.K.); (K.O.L.); (T.W.L.)
- Clinical Oncology Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, China
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Cavalcante-Silva LHA, Leite EG, Almeida FS, de Andrade AG, Comberlang FC, Lucena CKR, Pachá ASC, Csordas BG, Keesen TSL. T Cell Response in Tuberculosis-Infected Patients Vaccinated against COVID-19. Microorganisms 2023; 11:2810. [PMID: 38004820 PMCID: PMC10673403 DOI: 10.3390/microorganisms11112810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/01/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Many studies have focused on SARS-CoV-2 and Mycobacterium tuberculosis (Mtb) co-infection consequences. However, after a vaccination plan against COVID-19, the cases of severe disease and death are consistently controlled, although cases of asymptomatic and mild COVID-19 still happen together with tuberculosis (TB) cases. Thus, in this context, we sought to compare the T cell response of COVID-19-non-vaccinated and -vaccinated patients with active tuberculosis exposed to SARS-CoV-2 antigens. Flow cytometry was used to analyze activation markers (i.e., CD69 and CD137) and cytokines (IFN-γ, TNFα, IL-17, and IL-10) levels in CD4+ and CD8+ T cells upon exposure to SARS-CoV-2 peptides. The data obtained showed that CD8+ T cells from non-vaccinated TB patients present a high frequency of CD69 and TNF-α after viral challenge compared to vaccinated TB donors. Conversely, CD4+ T cells from vaccinated TB patients show a high frequency of IL-10 after spike peptide stimulus compared to non-vaccinated patients. No differences were observed in the other parameters analyzed. The results suggest that this reduced immune balance in coinfected individuals may have consequences for pathogen control, necessitating further research to understand its impact on clinical outcomes after COVID-19 vaccination in those with concurrent SARS-CoV-2 and Mtb infections.
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Affiliation(s)
- Luiz Henrique Agra Cavalcante-Silva
- Immunology of Infectious Diseases Laboratory, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa 58051-900, PB, Brazil; (L.H.A.C.-S.); (E.G.L.); (F.S.A.); (A.G.d.A.); (F.C.C.); (B.G.C.)
| | - Ericka Garcia Leite
- Immunology of Infectious Diseases Laboratory, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa 58051-900, PB, Brazil; (L.H.A.C.-S.); (E.G.L.); (F.S.A.); (A.G.d.A.); (F.C.C.); (B.G.C.)
| | - Fernanda Silva Almeida
- Immunology of Infectious Diseases Laboratory, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa 58051-900, PB, Brazil; (L.H.A.C.-S.); (E.G.L.); (F.S.A.); (A.G.d.A.); (F.C.C.); (B.G.C.)
| | - Arthur Gomes de Andrade
- Immunology of Infectious Diseases Laboratory, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa 58051-900, PB, Brazil; (L.H.A.C.-S.); (E.G.L.); (F.S.A.); (A.G.d.A.); (F.C.C.); (B.G.C.)
| | - Fernando Cézar Comberlang
- Immunology of Infectious Diseases Laboratory, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa 58051-900, PB, Brazil; (L.H.A.C.-S.); (E.G.L.); (F.S.A.); (A.G.d.A.); (F.C.C.); (B.G.C.)
| | | | | | - Bárbara Guimarães Csordas
- Immunology of Infectious Diseases Laboratory, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa 58051-900, PB, Brazil; (L.H.A.C.-S.); (E.G.L.); (F.S.A.); (A.G.d.A.); (F.C.C.); (B.G.C.)
| | - Tatjana S. L. Keesen
- Immunology of Infectious Diseases Laboratory, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa 58051-900, PB, Brazil; (L.H.A.C.-S.); (E.G.L.); (F.S.A.); (A.G.d.A.); (F.C.C.); (B.G.C.)
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Wang NI, Ninkov M, Haeryfar SMM. Classic costimulatory interactions in MAIT cell responses: from gene expression to immune regulation. Clin Exp Immunol 2023; 213:50-66. [PMID: 37279566 PMCID: PMC10324557 DOI: 10.1093/cei/uxad061] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/17/2023] [Accepted: 06/01/2023] [Indexed: 06/08/2023] Open
Abstract
Mucosa-associated invariant T (MAIT) cells are evolutionarily conserved, innate-like T lymphocytes with enormous immunomodulatory potentials. Due to their strategic localization, their invariant T cell receptor (iTCR) specificity for major histocompatibility complex-related protein 1 (MR1) ligands of commensal and pathogenic bacterial origin, and their sensitivity to infection-elicited cytokines, MAIT cells are best known for their antimicrobial characteristics. However, they are thought to also play important parts in the contexts of cancer, autoimmunity, vaccine-induced immunity, and tissue repair. While cognate MR1 ligands and cytokine cues govern MAIT cell maturation, polarization, and peripheral activation, other signal transduction pathways, including those mediated by costimulatory interactions, regulate MAIT cell responses. Activated MAIT cells exhibit cytolytic activities and secrete potent inflammatory cytokines of their own, thus transregulating the biological behaviors of several other cell types, including dendritic cells, macrophages, natural killer cells, conventional T cells, and B cells, with significant implications in health and disease. Therefore, an in-depth understanding of how costimulatory pathways control MAIT cell responses may introduce new targets for optimized MR1/MAIT cell-based interventions. Herein, we compare and contrast MAIT cells and mainstream T cells for their expression of classic costimulatory molecules belonging to the immunoglobulin superfamily and the tumor necrosis factor (TNF)/TNF receptor superfamily, based not only on the available literature but also on our transcriptomic analyses. We discuss how these molecules participate in MAIT cells' development and activities. Finally, we introduce several pressing questions vis-à-vis MAIT cell costimulation and offer new directions for future research in this area.
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Affiliation(s)
- Nicole I Wang
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada
| | - Marina Ninkov
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada
| | - S M Mansour Haeryfar
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada
- Division of Clinical Immunology and Allergy, Department of Medicine, Western University, London, Ontario, Canada
- Division of General Surgery, Department of Surgery, Western University, London, Ontario, Canada
- Lawson Health Research Institute, London, Ontario, Canada
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Exopolyphosphatases PPX1 and PPX2 from Mycobacterium tuberculosis regulate dormancy response and pathogenesis. Microb Pathog 2022; 173:105885. [DOI: 10.1016/j.micpath.2022.105885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/12/2022] [Accepted: 11/12/2022] [Indexed: 11/21/2022]
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Bade P, Simonetti F, Sans S, Laboudie P, Kissane K, Chappat N, Lagrange S, Apparailly F, Roubert C, Duroux-Richard I. Integrative Analysis of Human Macrophage Inflammatory Response Related to Mycobacterium tuberculosis Virulence. Front Immunol 2021; 12:668060. [PMID: 34276658 PMCID: PMC8284339 DOI: 10.3389/fimmu.2021.668060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 06/07/2021] [Indexed: 01/08/2023] Open
Abstract
Mycobacterium tuberculosis (Mtb), the etiological agent of tuberculosis, kills 1.5 to 1.7 million people every year. Macrophages are Mtb's main host cells and their inflammatory response is an essential component of the host defense against Mtb. However, Mtb is able to circumvent the macrophages' defenses by triggering an inappropriate inflammatory response. The ability of Mtb to hinder phagolysosome maturation and acidification, and to escape the phagosome into the cytosol, is closely linked to its virulence. The modulation of the host inflammatory response relies on Mtb virulence factors, but remains poorly studied. Understanding macrophage interactions with Mtb is crucial to develop strategies to control tuberculosis. The present study aims to determine the inflammatory response transcriptome and miRNome of human macrophages infected with the virulent H37Rv Mtb strain, to identify macrophage genetic networks specifically modulated by Mtb virulence. Using human macrophages infected with two different live strains of mycobacteria (live or heat-inactivated Mtb H37Rv and M. marinum), we quantified and analyzed 184 inflammatory mRNAs and 765 micro(mi)RNAs. Transcripts and miRNAs differently modulated by H37Rv in comparison with the two other conditions were analyzed using in silico approaches. We identified 30 host inflammatory response genes and 37 miRNAs specific for H37Rv virulence, and highlight evidence suggesting that Mtb intracellular-linked virulence depends on the inhibition of IL-1β-dependent pro-inflammatory response, the repression of apoptosis and the delay of the recruitment and activation of adaptive immune cells. Our findings provide new potential targets for the development of macrophage-based therapeutic strategies against TB.
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Affiliation(s)
- Pauline Bade
- Institute for Regenerative Medicine & Biotherapy (IRMB), INSERM, Univ Montpellier, CHU Montpellier, Montpellier, France
- Evotec ID (Lyon), Lyon, France
| | | | | | | | | | | | | | - Florence Apparailly
- Institute for Regenerative Medicine & Biotherapy (IRMB), INSERM, Univ Montpellier, CHU Montpellier, Montpellier, France
| | | | - Isabelle Duroux-Richard
- Institute for Regenerative Medicine & Biotherapy (IRMB), INSERM, Univ Montpellier, CHU Montpellier, Montpellier, France
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Trxlp, a thioredoxin-like effector from Edwardsiella piscicida inhibits cellular redox signaling and nuclear translocation of NF-κB. Int J Biol Macromol 2020; 148:89-101. [PMID: 31945434 DOI: 10.1016/j.ijbiomac.2020.01.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/06/2020] [Accepted: 01/11/2020] [Indexed: 11/23/2022]
Abstract
Redox signaling and homeostasis are essential for cell survival and the immune response. Peroxiredoxin (Prx) modulates the level of H2O2 as a redox signal through H2O2 decomposition. The redox activity of thioredoxin (Trx) is required as a reducing equivalent to regenerate Prx. Edwardsiella piscicida is an opportunistic Gram-negative enteric pathogen that secretes a novel Trx-like effector protein, ETAE_2186 (Trxlp). Trxlp has unique structural properties compared with other Trx proteins. In enzymatic and binding assays, we confirmed Trxlp to be redox-inactive due to the low reactivity and flexibility of the resolving cysteine residue, C35, at the active site motif "31WCXXC35". We identified key residues near the active site that are critical for reactivity and flexibility of C35 by site-directed mutagenesis analysis. NMR titration experiment demonstrated prolong inhibitory interaction of Trxlp with Prx1 resulting in the repression of Prx1-mediated H2O2 decomposition leading to increased ROS accumulation in infected host cells. Increased ROS in turn prevented nuclear translocation of NF-κB and inhibition of NF-κB target genes, leading to bacterial survival and enhanced replication inside host cells. Targeting Trxlp-mediated virulence promises to attenuate E. piscicida infection.
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Yan ZH, Zheng XF, Yi L, Wang J, Wang XJ, Wei PJ, Jia HY, Zhou LJ, Zhao YL, Zhang HT. CD137 is a Useful Marker for Identifying CD4 + T Cell Responses to Mycobacterium tuberculosis. Scand J Immunol 2017; 85:372-380. [PMID: 28218958 DOI: 10.1111/sji.12541] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/13/2017] [Indexed: 11/30/2022]
Abstract
Upregulation of CD137 on recently activated CD8+ T cells has been used to identify rare viral and tumour antigen-specific T cells from the peripheral blood. We aimed to evaluate the accuracy of CD137 for identifying Mycobacterium tuberculosis (Mtb)-reactive CD4+ T cells in the peripheral blood of infected individuals by flow cytometry and to investigate the characteristics of these CD137+ CD4+ T cells. We initially enrolled 31 active tuberculosis (TB) patients, 31 individuals with latent TB infection (LTBI) and 25 healthy donors. The intracellular CD137 and interferon-γ (IFN-γ) production by CD4+ T cells was simultaneously detected under unstimulated and CFP10-stimulated (culture filtrate protein 10, a Mtb-specific antigen) conditions. In unstimulated CD4+ T cells, we found that the CD137 expression in the TB group was significantly higher than that in the LTBI group. Stimulation with CFP10 largely increased the CD4+ T cell CD137 expression in both the TB and LTBI groups. After CFP10 stimulation, the frequency of CD137+ CD4+ T cells was higher than that of IFN-γ+ CD4+ T cells in both the TB and LTBI groups. Most of the CFP10-activated IFN-γ-secreting cells were CD137-positive, but only a small fraction of the CD137-positive cells expressed IFN-γ. An additional 20 patients with TB were enrolled to characterize the CD45RO+ CCR7+ , CD45RO+ CCR7- and CD45RO- subsets in the CD137+ CD4+ T cell populations. The Mtb-specific CD137+ CD4+ T cells were mainly identified as having an effector memory phenotype. In conclusion, CD137 is a useful marker that can be used for identifying Mtb-reactive CD4+ T cells by flow cytometry.
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Affiliation(s)
- Z-H Yan
- Department of Central Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Chest Hospital, Capital Medical University and, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - X-F Zheng
- Department of Pathology, Capital Medical University, Beijing Chao-yang Hospital, Beijing, China
| | - L Yi
- Department of Central Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Chest Hospital, Capital Medical University and, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - J Wang
- Department of Central Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Chest Hospital, Capital Medical University and, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - X-J Wang
- Department of Central Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Chest Hospital, Capital Medical University and, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - P-J Wei
- Department of Central Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Chest Hospital, Capital Medical University and, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - H-Y Jia
- Department of Central Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Chest Hospital, Capital Medical University and, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - L-J Zhou
- Department of Central Laboratory, Navy General Hospital, Beijing, China
| | - Y-L Zhao
- Department of National Tuberculosis Reference Laboratory, Chinese Center for Disease Control and Prevention, Beijing, China
| | - H-T Zhang
- Department of Central Laboratory, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Chest Hospital, Capital Medical University and, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
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Erdoğan Ö, Xie L, Wang L, Wu B, Kong Q, Wan Y, Chen X. Proteomic dissection of LPS-inducible, PHF8-dependent secretome reveals novel roles of PHF8 in TLR4-induced acute inflammation and T cell proliferation. Sci Rep 2016; 6:24833. [PMID: 27112199 PMCID: PMC4845005 DOI: 10.1038/srep24833] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 04/01/2016] [Indexed: 11/09/2022] Open
Abstract
Endotoxin (LPS)-induced changes in histone lysine methylation contribute to the gene-specific transcription for control of inflammation. Still unidentified are the chromatin regulators that drive the transition from a transcriptional-repressive to a transcriptional-active chromatin state of pro-inflammatory genes. Here, using combined approaches to analyze LPS-induced changes in both gene-specific transcription and protein secretion to the extracellular compartment, we characterize novel functions of the lysine demethylase PHF8 as a pro-inflammatory, gene-specific chromatin regulator. First, in the LPS-induced, acute-inflamed macrophages, PHF8 knockdown led to both a reduction of pro-inflammatory factors and an increase in a transcriptional-repressive code (H3K9me2) written by the methyltransferase G9a. Through unbiased quantitative secretome screening we discovered that LPS induces the secretion of a cluster of PHF8-dependent, 'tolerizable' proteins that are related to diverse extracellular pathways/processes including those for the activation of adaptive immunity. Specifically, we determined that PHF8 promotes T-cell activation and proliferation, thus providing the first link between the epigenetic regulation of inflammation and adaptive immunity. Further, we found that, in the acute-inflamed macrophages, the acute-active PHF8 opposes the H3K9me1/2-writing activity of G9a to activate specific protein secretions that are suppressed by G9a in the endotoxin-tolerant cells, revealing the inflammatory-phenotypic chromatin drivers that regulate the gene-specific chromatin plasticity.
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Affiliation(s)
- Özgün Erdoğan
- Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, US
| | - Ling Xie
- Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, US
| | - Li Wang
- Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, US
- Department of Chemistry, Fudan University, Shanghai, China
| | - Bing Wu
- Departement of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, US
| | - Qing Kong
- Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, US
| | - Yisong Wan
- Departement of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, US
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, US
| | - Xian Chen
- Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, US
- Department of Chemistry, Fudan University, Shanghai, China
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599, US
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Ferreira C, Palmer D, Blake K, Garden OA, Dyson J. Reduced regulatory T cell diversity in NOD mice is linked to early events in the thymus. THE JOURNAL OF IMMUNOLOGY 2014; 192:4145-52. [PMID: 24663675 DOI: 10.4049/jimmunol.1301600] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The thymic natural regulatory T cell (Treg) compartment of NOD mice is unusual in having reduced TCR diversity despite normal cellularity. In this study, we show that this phenotype is attributable to perturbations in early and late stages of thymocyte development and is controlled, at least in part, by the NOD Idd9 region on chromosome 4. Progression from double negative 1 to double negative 2 stage thymocytes in NOD mice is inefficient; however, this defect is compensated by increased proliferation of natural Tregs (nTregs) within the single positive CD4 thymocyte compartment, accounting for recovery of cellularity accompanied by loss of TCR diversity. This region also underlies the known attenuation of ERK-MAPK signaling, which may preferentially disadvantage nTreg selection. Interestingly, the same genetic region also regulates the rate of thymic involution that is accelerated in NOD mice. These findings highlight further complexity in the control of nTreg repertoire diversity.
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Affiliation(s)
- Cristina Ferreira
- Department of Medicine, Imperial College London, London W12 0NN, United Kingdom
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12
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Cole SL, Benam KH, McMichael AJ, Ho LP. Involvement of the 4-1BB/4-1BBL pathway in control of monocyte numbers by invariant NKT cells. THE JOURNAL OF IMMUNOLOGY 2014; 192:3898-907. [PMID: 24639347 DOI: 10.4049/jimmunol.1302385] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
4-1BB is expressed on invariant (i)NKT cells, but its role is unclear. We showed previously that iNKT cells are involved in control of monocyte numbers during influenza A virus (IAV) infection and now question the role of the 4-1BB costimulatory pathway in the cross-talk between these cells. We found that iNKT cells and monocytes interact to promote expression of 4-1BB and 4-1BBL, respectively. Blockade of 4-1BB/L pathway under resting coculture conditions increased apoptosis of iNKT cells and monocytes. However, activation of iNKT cells overrides this survival signal, causing marked apoptosis of monocytes independent of 4-1BB/L. Blocking 4-1BBL in alpha-galactosylceramide-activated iNKT-monocyte cocultures reduced iNKT proliferation and abrogated monocytic IL-12 production. In vivo, expression of 4-1BB and 4-1BBL is increased on iNKT cells and Ly6C(hi) monocytes, respectively, during IAV infection, and there were lower frequencies of apoptosing Ly6C(hi) monocytes in the blood of iNKT knockout mice and higher numbers of monocytes in lungs compared with infected wild-type mice. Adoptive transfer of iNKT cells into the lungs of these mice reduced lung Ly6C(hi) monocytes levels, even when iNKT cells were preincubated with 4-1BB blocking Abs. These findings suggest that under resting conditions, 4-1BB/L engagement during iNKT-monocyte interaction promotes survival of these cells. When iNKT cells are activated, whether by alpha-galactosylceramide or during IAV infection, iNKT cells induced apoptosis of monocytes via a 4-1BB/L-independent mechanism, reducing monocyte numbers. 4-1BB/L costimulation amplified monocyte-mediated proliferation of iNKT cells, indirectly providing a method for monocytes to control their own numbers during infection.
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Affiliation(s)
- Suzanne L Cole
- Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom
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Martínez Gómez JM, Koh VHQ, Yan B, Lin W, Ang MLT, Rahim SZZ, Pethe K, Schwarz H, Alonso S. Role of the CD137 ligand (CD137L) signaling pathway during Mycobacterium tuberculosis infection. Immunobiology 2013; 219:78-86. [PMID: 24091276 DOI: 10.1016/j.imbio.2013.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 08/06/2013] [Accepted: 08/12/2013] [Indexed: 02/01/2023]
Abstract
The role of the CD137-CD137 ligand (CD137L) signaling pathway in T cell co-stimulation has been well established. Dysregulated CD137 or CD137L stimulation can lead to pathological conditions such as inflammatory diseases or cancer. However, the contribution of CD137-CD137L interaction to the control of infectious diseases has not been extensively studied, with the few available reports focusing mainly on viral infections. Here we investigated the role of the CD137-CD137L interactions during Mycobacterium tuberculosis infection. Using CD137L-deficient mice, we found that absence of the CD137L-mediated signaling pathway during M. tuberculosis infection resulted in delayed activation of CD4(+) T cells in the draining lymph nodes. This finding was supported by an in vitro mixed lymphocyte reaction assay that revealed impaired priming of T cells by CD137L-deficient dendritic cells upon mycobacterial infection. In addition, greater numbers of CD4(+) T cells and antigen presenting cells were measured in the lungs of CD137L-deficient mice. Strikingly, the lung cytokine production profile was profoundly altered in M. tuberculosis-infected CD137L-deficient mice with lower levels of TNF-α, IL-12 and IL-6 and elevated concentrations of IL-17 compared to their wild type counterparts. However and surprisingly, these tangible immunological disorders translated only into a mild and transient increase in the bacterial loads and a higher number of granulomatous lesions with impaired architecture in the lungs of the CD137L-deficient infected mice. Together, while our data support the engagement of the CD137L signaling pathway during M. tuberculosis infection, they underscore the functional redundancy and robustness of the host defense arsenal deployed against mycobacterial infection.
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Affiliation(s)
- Julia María Martínez Gómez
- Department of Microbiology, Yong Loo Lin School of Medicine, Life Sciences Institute, National University of Singapore, Singapore; Immunology Programme, Yong Loo Lin School of Medicine, Life Sciences Institute, National University of Singapore, Singapore
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14
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Current world literature. Curr Opin Organ Transplant 2013; 18:241-50. [PMID: 23486386 DOI: 10.1097/mot.0b013e32835f5709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Fernández Do Porto DA, Auzmendi J, Peña D, García VE, Moffatt L. Bayesian approach to model CD137 signaling in human M. tuberculosis in vitro responses. PLoS One 2013; 8:e55987. [PMID: 23437083 PMCID: PMC3577821 DOI: 10.1371/journal.pone.0055987] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 01/04/2013] [Indexed: 11/20/2022] Open
Abstract
Immune responses are qualitatively and quantitatively influenced by a complex network of receptor-ligand interactions. Among them, the CD137:CD137L pathway is known to modulate innate and adaptive human responses against Mycobacterium tuberculosis. However, the underlying mechanisms of this regulation remain unclear. In this work, we developed a Bayesian Computational Model (BCM) of in vitro CD137 signaling, devised to fit previously gathered experimental data. The BCM is fed with the data and the prior distribution of the model parameters and it returns their posterior distribution and the model evidence, which allows comparing alternative signaling mechanisms. The BCM uses a coupled system of non-linear differential equations to describe the dynamics of Antigen Presenting Cells, Natural Killer and T Cells together with the interpheron (IFN)-γ and tumor necrosis factor (TNF)-α levels in the media culture. Fast and complete mixing of the media is assumed. The prior distribution of the parameters that describe the dynamics of the immunological response was obtained from the literature and theoretical considerations Our BCM applies successively the Levenberg-Marquardt algorithm to find the maximum a posteriori likelihood (MAP); the Metropolis Markov Chain Monte Carlo method to approximate the posterior distribution of the parameters and Thermodynamic Integration to calculate the evidence of alternative hypothesis. Bayes factors provided decisive evidence favoring direct CD137 signaling on T cells. Moreover, the posterior distribution of the parameters that describe the CD137 signaling showed that the regulation of IFN-γ levels is based more on T cells survival than on direct induction. Furthermore, the mechanisms that account for the effect of CD137 signaling on TNF-α production were based on a decrease of TNF-α production by APC and, perhaps, on the increase in APC apoptosis. BCM proved to be a useful tool to gain insight on the mechanisms of CD137 signaling during human response against Mycobacterium tuberculosis.
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Affiliation(s)
- Darío A. Fernández Do Porto
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina
| | - Jerónimo Auzmendi
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina
| | - Delfina Peña
- Instituto de Química Biológica - Ciencias Exactas y Naturales, -CONICET, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Verónica E. García
- Instituto de Química Biológica - Ciencias Exactas y Naturales, -CONICET, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Luciano Moffatt
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina
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