1
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Repele F, Alonzi T, Navarra A, Farroni C, Salmi A, Cuzzi G, Delogu G, Gualano G, Puro V, De Carli G, Girardi E, Palmieri F, Martineau AR, Goletti D. Detection of Mycobacterium tuberculosis DNA in CD34 + peripheral blood mononuclear cells of adults with tuberculosis infection and disease. Int J Infect Dis 2024; 141S:106999. [PMID: 38458427 DOI: 10.1016/j.ijid.2024.106999] [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: 01/25/2024] [Revised: 02/22/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024] Open
Abstract
OBJECTIVES To investigate whether Mycobacterium tuberculosis (Mtb) DNA is detected in peripheral blood mononuclear cells (PBMC) of subjects with tuberculosis (TB) or TB infection (TBI) living in a low-burden country. METHODS We prospectively enrolled 57 patients with TB, 41 subjects with TBI, and 39 controls in Rome, Italy. PBMC were isolated, cluster of differentiation (CD)34+ and CD34- cells were immunomagnetic separated, DNA was extracted, and digital polymerase chain reaction for IS6110 and rpoB sequences was used to detect Mtb DNA in PBMC subsets and unfractionated PBMC. RESULTS We detected Mtb DNA at a low copy number in CD34+ cells in 4o f 30 (13%) patients with TB, 2 of 24 (8%) subjects with TBI, and 1 of 24 (4%) controls. Mtb DNA was detected in unfractionated PBMC in 3 of 51 (6%) patients with TB, 2 of 38 (5%) subjects with TBI, and 2 of 36 (6%) controls. In CD34- cells, only 1 of 31 (3%) subjects with TBI tested positive for Mtb DNA. CONCLUSIONS Mtb DNA was detected at low frequencies and levels in the PBMC of subjects with TBI and donors with TB living in a low-burden country. In particular, Mtb DNA was detected more frequently in CD34+ cells, supporting the hypothesis that these cells may represent a Mtb niche. This finding informs biological understanding of Mtb pathogenesis and may support the development of a microbial blood biomarker for Mtb infection.
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Affiliation(s)
- Federica Repele
- Translational Research Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Tonino Alonzi
- Translational Research Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Assunta Navarra
- Department of Epidemiology, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Chiara Farroni
- Translational Research Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Andrea Salmi
- Translational Research Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Gilda Cuzzi
- Translational Research Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Giovanni Delogu
- Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie-Sezione di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Italy; Mater Olbia Hospital, Olbia, Italy
| | - Gina Gualano
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Vincenzo Puro
- Department of Epidemiology, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Gabriella De Carli
- Department of Epidemiology, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Enrico Girardi
- Scientific Direction, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Fabrizio Palmieri
- Respiratory Infectious Diseases Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy
| | - Adrian R Martineau
- Centre for Immunobiology, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Delia Goletti
- Translational Research Unit, National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS, Rome, Italy.
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2
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Sankar P, Mishra BB. Early innate cell interactions with Mycobacterium tuberculosis in protection and pathology of tuberculosis. Front Immunol 2023; 14:1260859. [PMID: 37965344 PMCID: PMC10641450 DOI: 10.3389/fimmu.2023.1260859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/26/2023] [Indexed: 11/16/2023] Open
Abstract
Tuberculosis (TB) remains a significant global health challenge, claiming the lives of up to 1.5 million individuals annually. TB is caused by the human pathogen Mycobacterium tuberculosis (Mtb), which primarily infects innate immune cells in the lungs. These immune cells play a critical role in the host defense against Mtb infection, influencing the inflammatory environment in the lungs, and facilitating the development of adaptive immunity. However, Mtb exploits and manipulates innate immune cells, using them as favorable niche for replication. Unfortunately, our understanding of the early interactions between Mtb and innate effector cells remains limited. This review underscores the interactions between Mtb and various innate immune cells, such as macrophages, dendritic cells, granulocytes, NK cells, innate lymphocytes-iNKT and ILCs. In addition, the contribution of alveolar epithelial cell and endothelial cells that constitutes the mucosal barrier in TB immunity will be discussed. Gaining insights into the early cellular basis of immune reactions to Mtb infection is crucial for our understanding of Mtb resistance and disease tolerance mechanisms. We argue that a better understanding of the early host-pathogen interactions could inform on future vaccination approaches and devise intervention strategies.
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Affiliation(s)
| | - Bibhuti Bhusan Mishra
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, NY, United States
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3
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Tenório de Menezes YK, Eto C, de Oliveira J, Larson EC, Mendes DAGB, Dias GBM, Delgobo M, Gubernat AK, Gleim JL, Munari EL, Starick M, Ferreira F, Mansur DS, Costa DL, Scanga CA, Báfica A. The Endogenous Retinoic Acid Receptor Pathway Is Exploited by Mycobacterium tuberculosis during Infection, Both In Vitro and In Vivo. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:601-611. [PMID: 37395686 DOI: 10.4049/jimmunol.2200555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 06/07/2023] [Indexed: 07/04/2023]
Abstract
Retinoic acid (RA) is a fundamental vitamin A metabolite involved in regulating immune responses through the nuclear RA receptor (RAR) and retinoid X receptor. While performing experiments using THP-1 cells as a model for Mycobacterium tuberculosis infection, we observed that serum-supplemented cultures displayed high levels of baseline RAR activation in the presence of live, but not heat-killed, bacteria, suggesting that M. tuberculosis robustly induces the endogenous RAR pathway. Using in vitro and in vivo models, we have further explored the role of endogenous RAR activity in M. tuberculosis infection through pharmacological inhibition of RARs. We found that M. tuberculosis induces classical RA response element genes such as CD38 and DHRS3 in both THP-1 cells and human primary CD14+ monocytes via a RAR-dependent pathway. M. tuberculosis-stimulated RAR activation was observed with conditioned media and required nonproteinaceous factor(s) present in FBS. Importantly, RAR blockade by (4-[(E)-2-[5,5-dimethyl-8-(2-phenylethynyl)-6H-naphthalen-2-yl]ethenyl]benzoic acid), a specific pan-RAR inverse agonist, in a low-dose murine model of tuberculosis significantly reduced SIGLEC-F+CD64+CD11c+high alveolar macrophages in the lungs, which correlated with 2× reduction in tissue mycobacterial burden. These results suggest that the endogenous RAR activation axis contributes to M. tuberculosis infection both in vitro and in vivo and reveal an opportunity for further investigation of new antituberculosis therapies.
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Affiliation(s)
- Yonne Karoline Tenório de Menezes
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Carolina Eto
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Joseana de Oliveira
- Department of Biochemistry and Immunology, Graduate Program in Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Erica C Larson
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Daniel A G B Mendes
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Greicy Brisa Malaquias Dias
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Murilo Delgobo
- Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Abigail K Gubernat
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Janelle L Gleim
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Eduarda Laís Munari
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Marick Starick
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Fabienne Ferreira
- Laboratory of Molecular Genetics of Bacteria, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Daniel Santos Mansur
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Diego L Costa
- Department of Biochemistry and Immunology, Graduate Program in Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Charles A Scanga
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - André Báfica
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
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4
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de Moraes L, Santos LA, Arruda LB, da Silva MDPP, Silva MDO, Silva JAG, Ramos A, dos Santos MB, Torres FG, Orge C, Teixeira AMDS, Vieira TS, Ramírez L, Soto M, Grassi MFR, de Siqueira IC, Costa DL, Costa CHN, Andrade BDB, Akrami K, de Oliveira CI, Boaventura VS, Barral-Netto M, Barral A, Vandamme AM, Van Weyenbergh J, Khouri R. High seroprevalence of Leishmania infantum is linked to immune activation in people with HIV: a two-stage cross-sectional study in Bahia, Brazil. Front Microbiol 2023; 14:1221682. [PMID: 37601355 PMCID: PMC10436095 DOI: 10.3389/fmicb.2023.1221682] [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: 05/12/2023] [Accepted: 06/28/2023] [Indexed: 08/22/2023] Open
Abstract
Visceral leishmaniasis is an opportunistic disease in HIV-1 infected individuals, unrecognized as a determining factor for AIDS diagnosis. The growing geographical overlap of HIV-1 and Leishmania infections is an emerging challenge worldwide, as co-infection increases morbidity and mortality for both infections. Here, we determined the prevalence of people living with HIV (PWH) with a previous or ongoing infection by Leishmania infantum and investigated the virological and immunological factors associated with co-infection. We adopted a two-stage cross-sectional cohort (CSC) design (CSC-I, n = 5,346 and CSC-II, n = 317) of treatment-naïve HIV-1-infected individuals in Bahia, Brazil. In CSC-I, samples collected between 1998 and 2013 were used for serological screening for leishmaniasis by an in-house Enzyme-Linked Immunosorbent Assay (ELISA) with SLA (Soluble Leishmania infantum Antigen), resulting in a prevalence of previous or ongoing infection of 16.27%. Next, 317 PWH were prospectively recruited from July 2014 to December 2015 with the collection of sociodemographic and clinical data. Serological validation by two different immunoassays confirmed a prevalence of 15.46 and 8.20% by anti-SLA, and anti-HSP70 serology, respectively, whereas 4.73% were double-positive (DP). Stratification of these 317 individuals in DP and double-negative (DN) revealed a significant reduction of CD4+ counts and CD4+/CD8+ ratios and a tendency of increased viral load in the DP group, as compared to DN. No statistical differences in HIV-1 subtype distribution were observed between the two groups. However, we found a significant increase of CXCL10 (p = 0.0076) and a tendency of increased CXCL9 (p = 0.061) in individuals with DP serology, demonstrating intensified immune activation in this group. These findings were corroborated at the transcriptome level in independent Leishmania- and HIV-1-infected cohorts (Swiss HIV Cohort and Piaui Northeast Brazil Cohort), indicating that CXCL10 transcripts are shared by the IFN-dominated immune activation gene signatures of both pathogens and positively correlated to viral load in untreated PWH. This study demonstrated a high prevalence of PWH with L. infantum seropositivity in Bahia, Brazil, linked to IFN-mediated immune activation and a significant decrease in CD4+ levels. Our results highlight the urgent need to increase awareness and define public health strategies for the management and prevention of HIV-1 and L. infantum co-infection.
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Affiliation(s)
- Laise de Moraes
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
| | - Luciane Amorim Santos
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
| | - Liã Bárbara Arruda
- Centre for Clinical Microbiology, Division of Infection & Immunity, University College London, London, United Kingdom
| | | | - Márcio de Oliveira Silva
- Centro Estadual Especializado em Diagnóstico, Assistência e Pesquisa, Secretaria de Saúde do Estado da Bahia, Salvador, Brazil
| | - José Adriano Góes Silva
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Centro Estadual Especializado em Diagnóstico, Assistência e Pesquisa, Secretaria de Saúde do Estado da Bahia, Salvador, Brazil
| | - André Ramos
- Centro Estadual Especializado em Diagnóstico, Assistência e Pesquisa, Secretaria de Saúde do Estado da Bahia, Salvador, Brazil
| | | | | | - Cibele Orge
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
| | | | | | - Laura Ramírez
- Departamento de Biología Molecular, Facultad de Ciencias, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
| | - Manuel Soto
- Departamento de Biología Molecular, Facultad de Ciencias, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Madrid, Spain
| | - Maria Fernanda Rios Grassi
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
| | | | - Dorcas Lamounier Costa
- Laboratório de Leishmanioses, Instituto de Doenças Tropicais Natan Portella, Universidade Federal do Piauí, Teresina, Brazil
| | - Carlos Henrique Nery Costa
- Laboratório de Leishmanioses, Instituto de Doenças Tropicais Natan Portella, Universidade Federal do Piauí, Teresina, Brazil
| | - Bruno de Bezerril Andrade
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
| | - Kevan Akrami
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
| | - Camila Indiani de Oliveira
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
| | - Viviane Sampaio Boaventura
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Hospital Santa Izabel, Salvador, Brazil
| | - Manoel Barral-Netto
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
| | - Aldina Barral
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
| | - Anne-Mieke Vandamme
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Clinical and Epidemiological Virology, Leuven, Belgium
- Center for Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Johan Van Weyenbergh
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Clinical and Epidemiological Virology, Leuven, Belgium
| | - Ricardo Khouri
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Clinical and Epidemiological Virology, Leuven, Belgium
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5
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Hamilton F, Schurz H, Yates TA, Gilchrist JJ, Möller M, Naranbhai V, Ghazal P, Timpson NJ, Parks T, Pollara G. Altered IL-6 signalling and risk of tuberculosis disease: a meta-analysis and Mendelian randomisation study. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.02.07.23285472. [PMID: 36798349 PMCID: PMC9934798 DOI: 10.1101/2023.02.07.23285472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
IL-6 responses are ubiquitous in Mycobacterium tuberculosis (Mtb) infections, but their role in determining human tuberculosis (TB) disease risk is unknown. We used single nucleotide polymorphisms (SNPs) in and near the IL-6 receptor (IL6R) gene, focusing on the non-synonymous variant, rs2228145, associated with reduced classical IL-6 signalling, to assess the effect of altered IL-6 activity on TB disease risk. We identified 16 genome wide association studies (GWAS) of TB disease collating 17,982 cases of TB disease and 972,389 controls across 4 continents. Meta-analyses and Mendelian randomisation analyses revealed that reduced classical IL-6 signalling was associated with lower odds of TB disease, a finding replicated using multiple, independent SNP instruments and 2 separate exposure variables. Our findings establish a causal relationship between IL-6 signalling and the outcome of Mtb infection, suggesting IL-6 antagonists do not increase the risk of TB disease and should be investigated as adjuncts in treatment.
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Affiliation(s)
- Fergus Hamilton
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Haiko Schurz
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Tom A. Yates
- Division of Infection and Immunity, University College London, London, UK
| | - James J. Gilchrist
- Wellcome Trust Centre for Human Genetics, Oxford, UK
- Department of Paediatrics, University of Oxford, UK
| | - Marlo Möller
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Vivek Naranbhai
- Wellcome Trust Centre for Human Genetics, Oxford, UK
- Massachusetts General Hospital, Boston, USA
- Dana-Farber Cancer Institute, Boston, USA
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
- Harvard Medical School, Boston, USA
| | | | | | - Tom Parks
- Wellcome Trust Centre for Human Genetics, Oxford, UK
- Department of Infectious Diseases Imperial College London, London, UK
| | - Gabriele Pollara
- Division of Infection and Immunity, University College London, London, UK
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6
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Koyyada P, Mishra S. A systematic computational analysis of Mycobacterium tuberculosis H37Rv and human CD34+ genomic expression reveals crucial molecular entities involved in infection progression. J Biomol Struct Dyn 2023; 41:13332-13347. [PMID: 36744528 DOI: 10.1080/07391102.2023.2175257] [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: 09/22/2022] [Accepted: 01/19/2023] [Indexed: 02/07/2023]
Abstract
The co-evolution of Mycobacterium tuberculosis H37Rv along with its host systems enables the pathogenic bacterium to emerge as a multi-drug resistant form. This creates challenges for a more efficacious treatment strategy that can mitigate the infection. Working towards the same, our study followed a mathematical and statistical approach proposing that mycobacterial transcription factors regulating virulence and adaptation, host cell cytoplasmic component metabolism, oxidoreductase activity and respiratory ETC would be targets for antibiotics against Mycobacterium tuberculosis. Simultaneously, extending the statistical study on Mycobacterium-infected human cord blood CD34+ cells revealed that the human CD34+ genes, S100A8 and FGR (tyrosine-protein kinase, Src2), might be affected in the infection pathogenesis by Mycobacterium. Further, the deduced Mycobacterium-human gene interaction network proposed that mycobacterial coregulators Rv0452 (MarR family regulator) and Rv3862c (WhiB6) triggered genes controlling bacterial metabolism, which influences human immunological pathways involving TLR2 and CXCL8/MAPK8.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Praveena Koyyada
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Seema Mishra
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
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7
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Xiong J, Zhang Z, Ye K. C/EBPβ/AEP Signaling Drives Alzheimer's Disease Pathogenesis. Neurosci Bull 2023:10.1007/s12264-023-01025-w. [PMID: 36735152 DOI: 10.1007/s12264-023-01025-w] [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: 10/16/2022] [Accepted: 12/02/2022] [Indexed: 02/04/2023] Open
Abstract
Alzheimer's disease (AD) is the most common type of dementia. Almost two-thirds of patients with AD are female. The reason for the higher susceptibility to AD onset in women is unclear. However, hormone changes during the menopausal transition are known to be associated with AD. Most recently, we reported that follicle-stimulating hormone (FSH) promotes AD pathology and enhances cognitive dysfunctions via activating the CCAAT-enhancer-binding protein (C/EBPβ)/asparagine endopeptidase (AEP) pathway. This review summarizes our current understanding of the crucial role of the C/EBPβ/AEP pathway in driving AD pathogenesis by cleaving multiple critical AD players, including APP and Tau, explaining the roles and the mechanisms of FSH in increasing the susceptibility to AD in postmenopausal females. The FSH-C/EBPβ/AEP pathway may serve as a novel therapeutic target for the treatment of AD.
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Affiliation(s)
- Jing Xiong
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zhentao Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Keqiang Ye
- Faculty of Life and Health Sciences, Shenzhen Institute of Advanced Technology (SIAT), Shenzhen, 518034, China.
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8
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Joseph SK, Migliore NR, Olivieri A, Torroni A, Owings AC, DeGiorgio M, Ordóñez WG, Aguilú JO, González-Andrade F, Achilli A, Lindo J. Genomic evidence for adaptation to tuberculosis in the Andes before European contact. iScience 2023; 26:106034. [PMID: 36824277 PMCID: PMC9941198 DOI: 10.1016/j.isci.2023.106034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/11/2022] [Accepted: 01/17/2023] [Indexed: 01/25/2023] Open
Abstract
Most studies focusing on human high-altitude adaptation in the Andean highlands have thus far been focused on Peruvian populations. We present high-coverage whole genomes from Indigenous people living in the Ecuadorian highlands and perform multi-method scans to detect positive natural selection. We identified regions of the genome that show signals of strong selection to both cardiovascular and hypoxia pathways, which are distinct from those uncovered in Peruvian populations. However, the strongest signals of selection were related to regions of the genome that are involved in immune function related to tuberculosis. Given our estimated timing of this selection event, the Indigenous people of Ecuador may have adapted to Mycobacterium tuberculosis thousands of years before the arrival of Europeans. Furthermore, we detect a population collapse that coincides with the arrival of Europeans, which is more severe than other regions of the Andes, suggesting differing effects of contact across high-altitude populations.
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Affiliation(s)
- Sophie K. Joseph
- Department of Anthropology, Emory University, Atlanta, GA 30322, USA
| | - Nicola Rambaldi Migliore
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia 27100, Italy
| | - Anna Olivieri
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia 27100, Italy
| | - Antonio Torroni
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia 27100, Italy
| | - Amanda C. Owings
- Department of Biology, University of Iowa, Iowa City, IA 52242, USA
| | - Michael DeGiorgio
- Department of Electrical Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA
| | | | | | - Fabricio González-Andrade
- Translational Medicine Unit, Central University of Ecuador, Faculty of Medical Sciences, Iquique N14-121 y Sodiro-Itchimbia, Sector El Dorado, 170403 Quito, Ecuador,Corresponding author
| | - Alessandro Achilli
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, Pavia 27100, Italy,Corresponding author
| | - John Lindo
- Department of Anthropology, Emory University, Atlanta, GA 30322, USA,Corresponding author
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9
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Autophagic reprogramming of bone marrow–derived macrophages. Immunol Res 2022; 71:229-246. [PMID: 36451006 PMCID: PMC10060350 DOI: 10.1007/s12026-022-09344-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/12/2022] [Indexed: 12/02/2022]
Abstract
Abstract
Macro-autophagy is a highly conserved catabolic process among eukaryotes affecting macrophages. This work studies the genetic regulatory network involving the interplay between autophagy and macrophage polarization (activation). Autophagy-related genes (Atgs) and differentially expressed genes (DEGs) of macrophage polarization (M1–M2) were predicted, and their regulatory networks constructed. Naïve (M0) mouse bone marrow–derived monocytes were differentiated into M1 and M2a. Validation of the targets of Smad1, LC3A and LC3B, Atg16L1, Atg7, IL-6, CD68, Arg-1, and Vamp7 was performed in vitro. Immunophenotyping by flow cytometry revealed three macrophage phenotypes: M0 (IL-6 + /CD68 +), M1 (IL-6 + /CD68 + /Arg-1 +), and M2a (CD68 + /Arg-1). Confocal microscopy revealed increased autophagy in both M1 and M2a and a significant increase in the pre-autophagosomes size and number. Bafilomycin A increased the expression of CD68 and Arg-1 in all cell lineages. In conclusion, our approach predicted the protein targets mediating the interplay between autophagy and macrophage polarization. We suggest that autophagy reprograms macrophage polarization via CD68, arginase 1, Atg16L1-1, and Atg16L1-3. The current findings provide a foundation for the future use of macrophages in immunotherapy of different autoimmune disorders.
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10
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Chitosan/genipin modified electrode for voltammetric determination of interleukin-6 as a biomarker of sepsis. Int J Biol Macromol 2022; 224:1450-1459. [DOI: 10.1016/j.ijbiomac.2022.10.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/20/2022] [Accepted: 10/25/2022] [Indexed: 11/05/2022]
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11
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Dirkx L, Hendrickx S, Merlot M, Bulté D, Starick M, Elst J, Bafica A, Ebo DG, Maes L, Van Weyenbergh J, Caljon G. Long-term hematopoietic stem cells as a parasite niche during treatment failure in visceral leishmaniasis. Commun Biol 2022; 5:626. [PMID: 35752645 PMCID: PMC9233693 DOI: 10.1038/s42003-022-03591-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 06/14/2022] [Indexed: 01/20/2023] Open
Abstract
Given the discontinuation of various first-line drugs for visceral leishmaniasis (VL), large-scale in vivo drug screening, establishment of a relapse model in rodents, immunophenotyping, and transcriptomics were combined to study persistent infections and therapeutic failure. Double bioluminescent/fluorescent Leishmania infantum and L. donovani reporter lines enabled the identification of long-term hematopoietic stem cells (LT-HSC) as a niche in the bone marrow with remarkably high parasite burdens, a feature confirmed for human hematopoietic stem cells (hHSPC). LT-HSC are more tolerant to antileishmanial drug action and serve as source of relapse. A unique transcriptional ’StemLeish’ signature in these cells was defined by upregulated TNF/NF-κB and RGS1/TGF-β/SMAD/SKIL signaling, and a downregulated oxidative burst. Cross-species analyses demonstrated significant overlap with human VL and HIV co-infected blood transcriptomes. In summary, the identification of LT-HSC as a drug- and oxidative stress-resistant niche, undergoing a conserved transcriptional reprogramming underlying Leishmania persistence and treatment failure, may open therapeutic avenues for leishmaniasis. Long-term hematopoietic stem cells may act as protective niches for the Leishmania parasite, potentially contributing to treatment failure in cases of visceral leishmaniasis.
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Affiliation(s)
- Laura Dirkx
- Laboratory of Microbiology, Parasitology, and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
| | - Sarah Hendrickx
- Laboratory of Microbiology, Parasitology, and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
| | - Margot Merlot
- Laboratory of Microbiology, Parasitology, and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
| | - Dimitri Bulté
- Laboratory of Microbiology, Parasitology, and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
| | - Marick Starick
- Clinical and Epidemiological Virology, Department of Microbiology, Immunology, and Transplantation, Rega Institute of Medical Research, KU Leuven, Leuven, Belgium.,Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology Federal University of Santa Catarina, Florianopolis, Brazil
| | - Jessy Elst
- Department of Immunology-Allergology-Rheumatology, Faculty of Medicine and Health Science and the Infla-Med Centre of Excellence, University of Antwerp, Antwerp University Hospital, Antwerp, Belgium
| | - André Bafica
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology Federal University of Santa Catarina, Florianopolis, Brazil
| | - Didier G Ebo
- Department of Immunology-Allergology-Rheumatology, Faculty of Medicine and Health Science and the Infla-Med Centre of Excellence, University of Antwerp, Antwerp University Hospital, Antwerp, Belgium
| | - Louis Maes
- Laboratory of Microbiology, Parasitology, and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
| | - Johan Van Weyenbergh
- Clinical and Epidemiological Virology, Department of Microbiology, Immunology, and Transplantation, Rega Institute of Medical Research, KU Leuven, Leuven, Belgium
| | - Guy Caljon
- Laboratory of Microbiology, Parasitology, and Hygiene (LMPH), Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium.
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12
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Amrute JM, Perry AM, Anand G, Cruchaga C, Hock KG, Farnsworth CW, Randolph GJ, Lavine KJ, Steed AL. Cell specific peripheral immune responses predict survival in critical COVID-19 patients. Nat Commun 2022; 13:882. [PMID: 35169146 PMCID: PMC8847593 DOI: 10.1038/s41467-022-28505-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 01/27/2022] [Indexed: 12/12/2022] Open
Abstract
SARS-CoV-2 triggers a complex systemic immune response in circulating blood mononuclear cells. The relationship between immune cell activation of the peripheral compartment and survival in critical COVID-19 remains to be established. Here we use single-cell RNA sequencing and Cellular Indexing of Transcriptomes and Epitomes by sequence mapping to elucidate cell type specific transcriptional signatures that associate with and predict survival in critical COVID-19. Patients who survive infection display activation of antibody processing, early activation response, and cell cycle regulation pathways most prominent within B-, T-, and NK-cell subsets. We further leverage cell specific differential gene expression and machine learning to predict mortality using single cell transcriptomes. We identify interferon signaling and antigen presentation pathways within cDC2 cells, CD14 monocytes, and CD16 monocytes as predictors of mortality with 90% accuracy. Finally, we validate our findings in an independent transcriptomics dataset and provide a framework to elucidate mechanisms that promote survival in critically ill COVID-19 patients. Identifying prognostic indicators among critical COVID-19 patients holds tremendous value in risk stratification and clinical management.
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Affiliation(s)
- Junedh M Amrute
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Alexandra M Perry
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Gautam Anand
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Carlos Cruchaga
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Karl G Hock
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Christopher W Farnsworth
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Gwendalyn J Randolph
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Kory J Lavine
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Ashley L Steed
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, 63110, USA.
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13
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Druszczyńska M, Godkowicz M, Kulesza J, Wawrocki S, Fol M. Cytokine Receptors-Regulators of Antimycobacterial Immune Response. Int J Mol Sci 2022; 23:1112. [PMID: 35163035 PMCID: PMC8835057 DOI: 10.3390/ijms23031112] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 12/18/2022] Open
Abstract
Cytokine receptors are critical regulators of the antimycobacterial immune response, playing a key role in initiating and coordinating the recruitment and activation of immune cells during infection. They recognize and bind specific cytokines and are involved in inducing intracellular signal transduction pathways that regulate a diverse range of biological functions, including proliferation, differentiation, metabolism and cell growth. Due to mutations in cytokine receptor genes, defective signaling may contribute to increased susceptibility to mycobacteria, allowing the pathogens to avoid killing and immune surveillance. This paper provides an overview of cytokine receptors important for the innate and adaptive immune responses against mycobacteria and discusses the implications of receptor gene defects for the course of mycobacterial infection.
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Affiliation(s)
- Magdalena Druszczyńska
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (M.G.); (S.W.); (M.F.)
| | - Magdalena Godkowicz
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (M.G.); (S.W.); (M.F.)
- Lodz Institutes of the Polish Academy of Sciences, The Bio-Med-Chem Doctoral School, University of Lodz, 90-237 Lodz, Poland
| | - Jakub Kulesza
- Department of Internal Diseases and Clinical Pharmacology, Medical University of Lodz, Kniaziewicza 1/5, 91-347 Lodz, Poland;
| | - Sebastian Wawrocki
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (M.G.); (S.W.); (M.F.)
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, 7265 Davos, Switzerland
| | - Marek Fol
- Department of Immunology and Infectious Biology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland; (M.G.); (S.W.); (M.F.)
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14
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Dysregulated expression of microRNAs in aqueous humor from intraocular tuberculosis patients. Mol Biol Rep 2021; 49:97-107. [PMID: 34677715 DOI: 10.1007/s11033-021-06846-4] [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: 07/20/2021] [Accepted: 10/15/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Systemic Mycobacterium tuberculosis (Mtb) infection alters microRNA's expression that controls cellular processes and modulates host defense mechanisms. However, the role of miRNAs in intraocular tuberculosis (IOTB) remains unknown. Therefore, this study aims to identify dysregulated miRNAs in the aqueous humor (AH) of patients with IOTB. METHODS AH from intraocular tuberculosis patients (n = 2) and cataract controls (n = 2) were used for small RNA deep sequencing using HiSeq Illumina sequencing platform. Differentially expressed miRNAs and their targets were identified by the bioinformatics approach, and their regulatory functions were predicted by pathway enrichment analysis. The expression of selected miRNAs and their binding targets were further validated by real-time quantitative PCR (RT-qPCR). RESULTS In total, we identified 56 differentially expressed miRNAs in the AH of intraocular tuberculosis (IOTB) patients compared to controls. We selected four significantly dysregulated miRNAs (miR-423-5p, miR-328-3p, miR-21-5p, and miR-16-5p) based on the RT-qPCR validation and predicted their gene targets. We developed a miRNA-targets regulatory network by combining pathways of interest and genes associated with TB. We identified that these four miRNAs might play an important role in IOTB pathogenesis via tuberculosis-associated pathways; PI3K-Akt signaling, autophagy and MAPK pathway. CONCLUSIONS For the first time, this study identifies the dysregulation of four miRNAs in the AH of IOTB patients using the ultra-low input small-RNA sequencing approach. Further target prediction and validation identify the role of these miRNAs in tuberculosis pathogenesis via tuberculosis-related pathways. This study identifies miRNAs as potentially ideal biomarkers in the aqueous humor of IOTB patients.
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15
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Buttle TS, Hummerstone CY, Billahalli T, Ward RJB, Barnes KE, Marshall NJ, Spong VC, Bothamley GH. The monocyte-to-lymphocyte ratio: Sex-specific differences in the tuberculosis disease spectrum, diagnostic indices and defining normal ranges. PLoS One 2021; 16:e0247745. [PMID: 34460817 PMCID: PMC8405018 DOI: 10.1371/journal.pone.0247745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 07/19/2021] [Indexed: 11/29/2022] Open
Abstract
Background The monocyte-to-lymphocyte ratio (MLR) has been advocated as a biomarker in tuberculosis. Our objective was to evaluate its clinical value and associations. Methods Blood counts, inflammatory markers and clinical parameters were measured in patients with and those screened for tuberculosis. Complete blood counts (CBCs) from a multi-ethnic population aged 16 to 65 years were evaluated; a sub-group with normal hematological indices was used to define the range of MLRs. Results Multivariate analysis in proven tuberculosis (n = 264) indicated MLR associated with low serum albumin, high white cell counts and a positive culture; values were higher in sputum smear-positive pulmonary tuberculosis (S+PTB). Analysis in S+PTB (n = 296) showed higher MLRs in males and those with high neutrophil counts, low serum albumin and high C-reactive protein. The diagnostic value of MLRs was assessed by comparing notified patients with TB (n = 264) with denotified cases (n = 50), active case-finding in non-contacts (TB n = 111 and LTBI n = 373) and contacts of S+PTB (n = 149) with S+PTB found at screening (n = 75). Sensitivities and specificities ranged from 58.0–62.5% and 50.0–70.0% respectively for optimal cut-off values, defined by ROC curves. In CBCs obtained over one month, ratios correlated with neutrophil counts (ρ = 0.48, P<0.00001, n = 14,573; MLR = 0.45 at 8–8.9 x 109/L) and were higher in males than females (P<0.0001). The MLR range (mean ± 2SD) in those with normal hematological indices (n = 3921: females 0.122–0.474; males 0.136–0.505) paralleled LTBI MLRs. Ratios did not predict death (n = 29) nor response to treatment (n = 178 S+PTB with follow-up CBCs). Ratios were higher in males than female in the 16–45 years age group, where immune differences due to sex hormones are likely greatest. Conclusions Severe tuberculosis and male sex associated with high MLRs; the same variables likely affect the performance of other biomarkers. The ratio performed poorly as a clinical aid.
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Affiliation(s)
- Thomas S. Buttle
- Department of Respiratory Medicine, Homerton University Hospital, London, United Kingdom
| | - Claire Y. Hummerstone
- Department of Respiratory Medicine, Homerton University Hospital, London, United Kingdom
| | - Thippeswamy Billahalli
- Department of Respiratory Medicine, Homerton University Hospital, London, United Kingdom
| | - Richard J. B. Ward
- Department of Respiratory Medicine, Homerton University Hospital, London, United Kingdom
| | - Korina E. Barnes
- Microbiology Department, Homerton University Hospital, London, United Kingdom
| | - Natalie J. Marshall
- Microbiology Department, Homerton University Hospital, London, United Kingdom
| | - Viktoria C. Spong
- Department of Respiratory Medicine, Homerton University Hospital, London, United Kingdom
| | - Graham H. Bothamley
- Department of Respiratory Medicine, Homerton University Hospital, London, United Kingdom
- Department of Immunobiology, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
- Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
- * E-mail:
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16
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Tamburini B, Badami GD, Azgomi MS, Dieli F, La Manna MP, Caccamo N. Role of hematopoietic cells in Mycobacterium tuberculosis infection. Tuberculosis (Edinb) 2021; 130:102109. [PMID: 34315045 DOI: 10.1016/j.tube.2021.102109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 07/05/2021] [Accepted: 07/20/2021] [Indexed: 10/20/2022]
Abstract
Tuberculosis remains one of the most significant causes of mortality worldwide and the current situation shows a re-emergence of TB due to the emergence of new antibiotic-resistant strains and the widespread of disease caused by immunodeficiencies. For these reasons, a big effort is made to improve the therapeutic strategies against Mycobacterium tuberculosis and to perform new therapeutic and diagnostic strategies. This review analyzes the various hematopoietic populations, their role and the different changes they undergo during Mycobacterium tuberculosis infection or disease. We have examined the population of lymphocytes, monocytes, neutrophils, eosinophils and platelets, in orderto understand how each of them is modulated during the course of infection/disease. In this way it will be possible to highlight the correlations between these cell populations and the different stages of tubercular infection. In fact, Mycobacterium tuberculosis is able to influence both proliferation and differentiation of hematopoietic stem cells. Several studies have highlighted that Mycobacterium tuberculosis can also infect progenitor cells in the bone marrow during active disease driving towards an increase of myeloid differentiation. This review focuses how the different stages of tubercular infection could impact on the different hematopoietic populations, with the aim to correlate the changes of different populations as biomarkers useful to discriminate infection from disease and to evaluate the effectiveness of new therapies.
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Affiliation(s)
- Bartolo Tamburini
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), Italy; Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.); University of Palermo, Palermo 90127, Italy
| | - Giusto Davide Badami
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), Italy; Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.); University of Palermo, Palermo 90127, Italy
| | - Mojtaba Shekarkar Azgomi
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), Italy; Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.); University of Palermo, Palermo 90127, Italy
| | - Francesco Dieli
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), Italy; Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.); University of Palermo, Palermo 90127, Italy
| | - Marco Pio La Manna
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), Italy; Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.); University of Palermo, Palermo 90127, Italy
| | - Nadia Caccamo
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), Italy; Department of Biomedicine, Neurosciences and Advanced Diagnostic (Bi.N.D.); University of Palermo, Palermo 90127, Italy.
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17
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Pollara G, Turner CT, Rosenheim J, Chandran A, Bell LCK, Khan A, Patel A, Peralta LF, Folino A, Akarca A, Venturini C, Baker T, Ecker S, Ricciardolo FLM, Marafioti T, Ugarte-Gil C, Moore DAJ, Chain BM, Tomlinson GS, Noursadeghi M. Exaggerated IL-17A activity in human in vivo recall responses discriminates active tuberculosis from latent infection and cured disease. Sci Transl Med 2021; 13:13/592/eabg7673. [PMID: 33952677 PMCID: PMC7610803 DOI: 10.1126/scitranslmed.abg7673] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/14/2021] [Indexed: 12/12/2022]
Abstract
Host immune responses at the site of Mycobacterium tuberculosis (Mtb) infection can mediate pathogenesis of tuberculosis (TB) and onward transmission of infection. We hypothesized that pathological immune responses would be enriched at the site of host-pathogen interactions modelled by a standardized tuberculin skin test (TST) challenge in patients with active TB compared to those without disease, and interrogated immune responses by genome-wide transcriptional profiling. We show exaggerated interleukin (IL)-17A and Th17 responses among 48 individuals with active TB compared to 191 with latent TB infection, associated with increased neutrophil recruitment and matrix metalloproteinase-1 expression, both involved in TB pathogenesis. Curative antimicrobial treatment reversed these observed changes. Increased IL-1β and IL-6 responses to mycobacterial stimulation were evident in both circulating monocytes and in molecular changes at the site of TST in individuals with active TB, supporting a model in which monocyte-derived IL-1β and IL-6 promote Th17 differentiation within tissues. Modulation of these cytokine pathways may provide a rational strategy for host-directed therapy in active TB.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Anna Folino
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | | | | | | | | | | | | | - Cesar Ugarte-Gil
- School of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru.,TB Centre, London School of Hygiene & Tropical Medicine, London, UK
| | - David A J Moore
- TB Centre, London School of Hygiene & Tropical Medicine, London, UK.,Laboratorio de Investigación de Enfermedades Infecciosas, Universidad Peruana Cayetano Heredia, Lima, Peru
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18
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Morenikeji OB, Wallace M, Strutton E, Bernard K, Yip E, Thomas BN. Integrative Network Analysis of Predicted miRNA-Targets Regulating Expression of Immune Response Genes in Bovine Coronavirus Infection. Front Genet 2020; 11:584392. [PMID: 33193717 PMCID: PMC7554596 DOI: 10.3389/fgene.2020.584392] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/04/2020] [Indexed: 12/11/2022] Open
Abstract
Bovine coronavirus (BCoV) infection that causes disease outbreaks among farm animals, resulting in significant economic losses particularly in the cattle industry, has the potential to become zoonotic. miRNAs, which are short non-coding segments of RNA that inhibits the expression of their target genes, have been identified as potential biomarkers and drug targets, though this potential in BCoV remains largely unknown. We hypothesize that certain miRNAs could simultaneously target multiple genes, are significantly conserved across many species, thereby demonstrating the potential to serve as diagnostic or therapeutic tools for bovine coronavirus infection. To this end, we utilized different existing and publicly available computational tools to conduct system analysis predicting important miRNAs that could affect BCoV pathogenesis. Eleven genes including CEBPD, IRF1, TLR9, SRC, and RHOA, significantly indicated in immune-related pathways, were identified to be associated with BCoV, and implicated in other coronaviruses. Of the 70 miRNAs predicted to target the identified genes, four concomitant miRNAs (bta-miR-11975, bta-miR-11976, bta-miR-22-3p, and bta-miR-2325c) were found. Examining the gene interaction network suggests IL-6, IRF1, and TP53 as key drivers. Phylogenetic analysis revealed that miR-22 was completely conserved across all 14 species it was searched against, suggesting a shared and important functional role. Functional annotation and associated pathways of target genes, such as positive regulation of cytokine production, IL-6 signaling pathway, and regulation of leukocyte differentiation, indicate the miRNAs are major participants in multiple aspects of both innate and adaptive immune response. Examination of variants evinced a potentially deleterious SNP in bta-miR-22-3p and an advantageous SNP in bta-miR-2325c. Conclusively, this study provides new insight into miRNAs regulating genes responding to BCoV infection, with bta-miR-22-3p particularly indicated as a potential drug target or diagnostic marker for bovine coronavirus.
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Affiliation(s)
| | | | - Ellis Strutton
- Department of Biology, Hamilton College, Clinton, NY, United States
| | - Kahleel Bernard
- Department of Biology, Hamilton College, Clinton, NY, United States
| | - Elaine Yip
- Department of Biology, Hamilton College, Clinton, NY, United States
| | - Bolaji N Thomas
- Department of Biomedical Sciences, College of Health Sciences and Technology, Rochester Institute of Technology, Rochester, NY, United States
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19
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STAT2 signaling restricts viral dissemination but drives severe pneumonia in SARS-CoV-2 infected hamsters. Nat Commun 2020; 11:5838. [PMID: 33203860 PMCID: PMC7672082 DOI: 10.1038/s41467-020-19684-y] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 10/27/2020] [Indexed: 12/15/2022] Open
Abstract
Emergence of SARS-CoV-2 causing COVID-19 has resulted in hundreds of thousands of deaths. In search for key targets of effective therapeutics, robust animal models mimicking COVID-19 in humans are urgently needed. Here, we show that Syrian hamsters, in contrast to mice, are highly permissive to SARS-CoV-2 and develop bronchopneumonia and strong inflammatory responses in the lungs with neutrophil infiltration and edema, further confirmed as consolidations visualized by micro-CT alike in clinical practice. Moreover, we identify an exuberant innate immune response as key player in pathogenesis, in which STAT2 signaling plays a dual role, driving severe lung injury on the one hand, yet restricting systemic virus dissemination on the other. Our results reveal the importance of STAT2-dependent interferon responses in the pathogenesis and virus control during SARS-CoV-2 infection and may help rationalizing new strategies for the treatment of COVID-19 patients.
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20
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Sun W, Jiao L, Liu T, Song J, Wang M, Liang L, Wen C, Hu L, Qu W, Ying B. No Significant Effects of IL-6 and IL-13 Gene Variants on Tuberculosis Susceptibility in the Chinese Population. DNA Cell Biol 2020; 39:1356-1367. [PMID: 32522041 DOI: 10.1089/dna.2020.5404] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Tuberculosis (TB) is an intricate infectious disease that causes a large number of deaths in the population. Interleukin (IL)-6 and IL-13 play functional roles in host resistance to Mycobacterium tuberculosis infection. Our aim in this study was to explore the association of IL-6 and IL-13 polymorphisms with TB susceptibility in the Western Chinese Han population. The case and control groups comprised 900 TB patients and 1534 healthy controls, respectively, and four single-nucleotide polymorphisms (SNPs) were genotyped in IL-6 and five SNPs in IL-13 through the improved multiplex ligation detection reaction method. We found no genetic variants in the IL-6 or IL-13 genes that were related to TB susceptibility in the analysis of alleles, genotypes, genetic models, and TB clinical subtypes, except for a trend toward low pulmonary tuberculosis and extrapulmonary tuberculosis susceptibility for the SNPs rs1295686 and rs20541. Our study did not find a link between IL-6 and IL-13 polymorphisms and TB susceptibility in the Western Chinese Han population. Therefore, our present data revealed the challenge of applying IL-6 and IL-13 SNPs as genetic markers for TB and that increased sample sizes and additional races are needed for further studies.
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Affiliation(s)
- Wei Sun
- Department of Laboratory Medicine, Guiyang Children's Hospital, Guiyang, China
| | - Lin Jiao
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Tangyuheng Liu
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Jiajia Song
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Minjin Wang
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Lu Liang
- Department of Laboratory Medicine, Guiyang Children's Hospital, Guiyang, China
| | - Chunrong Wen
- Department of Laboratory Medicine, Guiyang Children's Hospital, Guiyang, China
| | - Lei Hu
- Department of Laboratory Medicine, Guiyang Children's Hospital, Guiyang, China
| | - Wei Qu
- Department of Laboratory Medicine, Guiyang Children's Hospital, Guiyang, China
| | - Binwu Ying
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu, China
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Adhikari A, Cobb B, Eddington S, Becerra N, Kohli P, Pond A, Davie J. IFN-γ and CIITA modulate IL-6 expression in skeletal muscle. Cytokine X 2020; 2:100023. [PMID: 33604554 PMCID: PMC7885875 DOI: 10.1016/j.cytox.2020.100023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/04/2020] [Accepted: 03/08/2020] [Indexed: 12/20/2022] Open
Abstract
Interleukin 6 (IL-6) is a secreted cytokine that is an important mediator of the immune response in numerous tissues, including skeletal muscle. IL-6 is considered a myokine as it can be secreted by muscle. IL-6 is secreted following exercise, where it exerts both pro-myogenic effects as well as anti-myogenic effects such as promoting atrophy and muscle wasting. The regulation of IL-6 in skeletal muscle is not well understood. The purpose of this study was to determine if IFN-γ and TNF-ɑ stimulate IL-6 in skeletal muscle. We found that both IFN-γ and TNF-α stimulate IL-6 in skeletal muscle, but the stimulation is not cooperative as seen in monocytes. We have previously shown that the IFN-γ stimulated class II major histocompatibility complex transactivator (CIITA) mediates many of the effects of IFN-γ in skeletal muscle and we show here that CIITA directly stimulates IL-6. The regulation of IL-6 by CIITA is clearly complex, as we found that CIITA both stimulates and restrains IL-6 expression. To show that these effects could be observed in a physiological setting, mice were treated with IFN-γ and we found that both CIITA and IL-6 were upregulated in skeletal muscle.
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Affiliation(s)
- Abhinav Adhikari
- Department of Biochemistry and Molecular Biology, Southern Illinois University School of Medicine, Carbondale, IL, USA
| | - Brittan Cobb
- Department of Anatomy, Southern Illinois University School of Medicine, Carbondale, IL, USA
| | - Seth Eddington
- Department of Biochemistry and Molecular Biology, Southern Illinois University School of Medicine, Carbondale, IL, USA
| | - Nathalie Becerra
- Department of Chemistry, Southern Illinois Carbondale, Carbondale, IL, USA
| | - Punit Kohli
- Department of Chemistry, Southern Illinois Carbondale, Carbondale, IL, USA
| | - Amber Pond
- Department of Anatomy, Southern Illinois University School of Medicine, Carbondale, IL, USA
| | - Judith Davie
- Department of Biochemistry and Molecular Biology, Southern Illinois University School of Medicine, Carbondale, IL, USA
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