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Pérez-Noriega FA, Salinas-Lara C, Sánchez-Garibay C, Torres-Ruíz JJ, Maravillas-Montero JL, Castañón-Arreola M, Hernández-Campos ME, Rodríguez-Balderas C, Basurto-López BV, Peñafiel-Salgado C, Espinosa-García AP, Choreño-Parra JA, Tena-Suck ML, Soto-Rojas LO, León-Marroquín EY, Romero-López JP, Castillejos-López M. Mycobacterium tuberculosis Cell Wall Antigens Induce the Formation of Immune Complexes and the Development of Vasculitis in an Experimental Murine Model. Int J Mol Sci 2023; 24:ijms24021242. [PMID: 36674759 PMCID: PMC9866931 DOI: 10.3390/ijms24021242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/28/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023] Open
Abstract
Tuberculosis (TB) of the central nervous system (CNS) presents high mortality due to brain damage and inflammation events. The formation and deposition of immune complexes (ICs) in the brain microvasculature during Mycobacterium tuberculosis (Mtb) infection are crucial for its pathobiology. The relevance of ICs to Mtb antigens in the pathogenesis of CNS-TB has been poorly explored. Here, we aimed to establish a murine experimental model of ICs-mediated brain vasculitis induced by cell wall antigens of Mtb. We administered a cell wall extract of the prototype pathogenic Mtb strain H37Rv to male BALB/c mice by subcutaneous and intravenous routes. Serum concentration and deposition of ICs onto blood vessels were determined by polyethylene glycol precipitation, ELISA, and immunofluorescence. Histopathological changes in the brain, lung, spleen, liver, and kidney were evaluated by hematoxylin and eosin staining. Our results evidenced that vasculitis developed in the studied tissues. High serum levels of ICs and vascular deposition were evident in the brain, lung, and kidneys early after the last cell wall antigen administration. Cell wall Mtb antigens induce strong type III hypersensitivity reactions and the development of systemic vasculitis with brain vascular changes and meningitis, supporting a role for ICs in the pathogenesis of TB.
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Affiliation(s)
- Flaubert Alexis Pérez-Noriega
- Departamento de Neuropatología, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suarez”, Mexico City 14269, Mexico
- Red MEDICI, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
| | - Citlaltepetl Salinas-Lara
- Departamento de Neuropatología, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suarez”, Mexico City 14269, Mexico
- Red MEDICI, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
- Tuberculosis Research Commonwealth, Mexico City 14269, Mexico
- Laboratorio de Patogénesis Molecular, Laboratorio 4, Edificio A4, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
- Correspondence: (C.S.-L.); or (C.S.-G.); Tel.: +52-55-5606-3822 (C.S.-L. & C.S.-G.)
| | - Carlos Sánchez-Garibay
- Departamento de Neuropatología, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suarez”, Mexico City 14269, Mexico
- Tuberculosis Research Commonwealth, Mexico City 14269, Mexico
- Correspondence: (C.S.-L.); or (C.S.-G.); Tel.: +52-55-5606-3822 (C.S.-L. & C.S.-G.)
| | - José Jiram Torres-Ruíz
- Departamento de Inmunología y Reumatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico
| | - José Luis Maravillas-Montero
- Red de Apoyo a la Investigación, Coordinación de Investigación Científica, Universidad Nacional Autónoma de México, e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 04510, Mexico
| | | | - María Elena Hernández-Campos
- Escuela Superior de Medicina, Sección de Estudios de Postgrado, Instituto Politécnico Nacional, México City 11340, Mexico
| | - Cesar Rodríguez-Balderas
- Departamento de Bioterio, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suarez”, Mexico City 14269, Mexico
| | - Beatriz Victoria Basurto-López
- Departamento de Neuropatología, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suarez”, Mexico City 14269, Mexico
- Red MEDICI, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
| | - Carlos Peñafiel-Salgado
- Departamento de Neuropatología, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suarez”, Mexico City 14269, Mexico
- Red MEDICI, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
| | - Ana Paola Espinosa-García
- Departamento de Neuropatología, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suarez”, Mexico City 14269, Mexico
- Red MEDICI, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
| | - José Alberto Choreño-Parra
- Tuberculosis Research Commonwealth, Mexico City 14269, Mexico
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
| | - Martha Lilia Tena-Suck
- Departamento de Neuropatología, Instituto Nacional de Neurología y Neurocirugía “Manuel Velasco Suarez”, Mexico City 14269, Mexico
| | - Luis O. Soto-Rojas
- Red MEDICI, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
- Laboratorio de Patogénesis Molecular, Laboratorio 4, Edificio A4, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
| | - Elsa Y. León-Marroquín
- Tuberculosis Research Commonwealth, Mexico City 14269, Mexico
- Departamento de Física Médica, Hospital De Oncología, Centro Médico Nacional Siglo XXI, Instituto Méxicano del Seguro Social, Mexico City 06720, Mexico
| | - José Pablo Romero-López
- Red MEDICI, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
- Laboratorio de Patogénesis Molecular, Laboratorio 4, Edificio A4, Carrera Médico Cirujano, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla 54090, Mexico
| | - Manuel Castillejos-López
- Tuberculosis Research Commonwealth, Mexico City 14269, Mexico
- Departamento de Epidemiología Hospitalaria e Infectología, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico City 14080, Mexico
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Nziza N, Cizmeci D, Davies L, Irvine EB, Jung W, Fenderson BA, de Kock M, Hanekom WA, Franken KLMC, Day CL, Ottenhoff THM, Alter G. Defining Discriminatory Antibody Fingerprints in Active and Latent Tuberculosis. Front Immunol 2022; 13:856906. [PMID: 35514994 PMCID: PMC9066635 DOI: 10.3389/fimmu.2022.856906] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/11/2022] [Indexed: 01/10/2023] Open
Abstract
Tuberculosis (TB) is among the leading causes of death worldwide from a single infectious agent, second only to COVID-19 in 2020. TB is caused by infection with Mycobacterium tuberculosis (Mtb), that results either in a latent or active form of disease, the latter associated with Mtb spread. In the absence of an effective vaccine, epidemiologic modeling suggests that aggressive treatment of individuals with active TB (ATB) may curb spread. Yet, clinical discrimination between latent (LTB) and ATB remains a challenge. While antibodies are widely used to diagnose many infections, the utility of antibody-based tests to diagnose ATB has only regained significant traction recently. Specifically, recent interest in the humoral immune response to TB has pointed to potential differences in both targeted antigens and antibody features that can discriminate latent and active TB. Here we aimed to integrate these observations and broadly profile the humoral immune response across individuals with LTB or ATB, with and without HIV co-infection, to define the most discriminatory humoral properties and diagnose TB disease more easily. Using 209 Mtb antigens, striking differences in antigen-recognition were observed across latently and actively infected individuals that was modulated by HIV serostatus. However, ATB and LTB could be discriminated, irrespective of HIV-status, based on a combination of both antibody levels and Fc receptor-binding characteristics targeting both well characterized (like lipoarabinomannan, 38 kDa or antigen 85) but also novel Mtb antigens (including Rv1792, Rv1528, Rv2435C or Rv1508). These data reveal new Mtb-specific immunologic markers that can improve the classification of ATB versus LTB.
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Affiliation(s)
- Nadege Nziza
- Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
| | - Deniz Cizmeci
- Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
| | - Leela Davies
- Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
- Division of Infectious Diseases, Brigham and Women’s Hospital, Boston, MA, United States
| | - Edward B. Irvine
- Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Wonyeong Jung
- Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
| | - Brooke A. Fenderson
- Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
| | - Marwou de Kock
- South African Tuberculosis Vaccine Initiative (SATVI) and School of Child and Adolescent Health, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Willem A. Hanekom
- Africa Health Research Institute, Durban, South Africa
- Division of Infection and Immunity, University College London, London, United Kingdom
| | | | - Cheryl L. Day
- Department of Microbiology and Immunology, Emory University School of Medicine, Emory University, Atlanta, GA, United States
| | | | - Galit Alter
- Ragon Institute of Massachusetts General Hospital (MGH), Massachusetts Institute of Technology (MIT) and Harvard, Cambridge, MA, United States
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Levenhagen MA, Fujimura PT, Santos FDAA, Vecchi L, Alves-Balvedi RP, Madurro AGB, Madurro JM, Costa-Cruz JM, Goulart LR. Innovative approaches to improve serodiagnosis of Strongyloides stercoralis infection. Braz J Infect Dis 2021; 25:101545. [PMID: 33636109 PMCID: PMC9392097 DOI: 10.1016/j.bjid.2021.101545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/04/2021] [Accepted: 01/19/2021] [Indexed: 12/15/2022] Open
Abstract
Strongyloidiasis is a helminthiasis of neglected condition that has no gold standard parasitological diagnosis due to the intermittent release of larvae in feces. This study aimed to use an scFv (single chain variable fragment) obtained by Phage Display, previously validated to detect immune complexes in serum samples from individuals infected with Strongyloides stercoralis by enzyme-linked immunosorbent assay (ELISA). Now the ability of scFv to detect the immune complexes was verified by immunofluorescence, flow cytometry using magnetic beads and surface plasmon resonance (SPR). As ELISA, the SPR, immunofluorescence and flow cytometry demonstrated the ability of scFv to detect immune complexes in sera from individuals with strongyloidiasis and discriminate them from sera of individuals with other parasitic diseases and healthy individuals. Besides de conventional ELISA, the novel approaches can also be promptly applied as auxiliary diagnostic tools to the existing parasitological method for accurate diagnosis of human strongyloidiasis.
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Affiliation(s)
- Marcelo Arantes Levenhagen
- Universidade Federal de Uberlândia, Instituto de Ciências Biomédicas, Laboratório de Diagnóstico de Parasitoses, Uberlândia, MG, Brazil.
| | - Patrícia Tiemi Fujimura
- Universidade Federal de Uberlândia, Instituto de Genética e Bioquímica, Laboratório de Nanobiotecnologia, Uberlândia, MG, Brazil
| | - Fabiana de Almeida Araújo Santos
- Universidade Federal de Uberlândia, Instituto de Genética e Bioquímica, Laboratório de Nanobiotecnologia, Uberlândia, MG, Brazil
| | - Lara Vecchi
- Universidade Federal de Uberlândia, Instituto de Genética e Bioquímica, Laboratório de Nanobiotecnologia, Uberlândia, MG, Brazil
| | - Renata Pereira Alves-Balvedi
- Universidade Federal de Uberlândia, Laboratório de Filmes Poliméricos e Nanotecnologia, Instituto de Química, Uberlândia, MG, Brazil
| | - Ana Graci Brito Madurro
- Universidade Federal de Uberlândia, Laboratório de Filmes Poliméricos e Nanotecnologia, Instituto de Química, Uberlândia, MG, Brazil
| | - João Marcos Madurro
- Universidade Federal de Uberlândia, Laboratório de Filmes Poliméricos e Nanotecnologia, Instituto de Química, Uberlândia, MG, Brazil
| | - Julia Maria Costa-Cruz
- Universidade Federal de Uberlândia, Instituto de Ciências Biomédicas, Laboratório de Diagnóstico de Parasitoses, Uberlândia, MG, Brazil
| | - Luiz Ricardo Goulart
- Universidade Federal de Uberlândia, Instituto de Genética e Bioquímica, Laboratório de Nanobiotecnologia, Uberlândia, MG, Brazil; Department of Medical Microbiology and Immunology, University of California, Davis, CA, USA
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Lee JY, Kim BJ, Kim JM, Kim J, Joh JS, Jeong I, Kook YH, Kim BJ. Usefulness of the IgA and IgG Responses to Macrophage Migration Inhibitory Factor for the Diagnosis of Tuberculosis. Diagnostics (Basel) 2020; 10:diagnostics10110991. [PMID: 33238656 PMCID: PMC7700399 DOI: 10.3390/diagnostics10110991] [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: 09/22/2020] [Revised: 10/21/2020] [Accepted: 11/20/2020] [Indexed: 11/16/2022] Open
Abstract
Serological tests offer the potential in order to improve the diagnosis of tuberculosis (TB). Macrophage migration inhibitory factor (MIF) plays a protective role in infection control in TB; however, to date, no studies on antibody responses to MIF have been reported. We measured immunoglobulin (Ig)A and IgG responses to MIF in individuals with either active tuberculosis (ATB; n = 65), latent tuberculosis (LTBI; n = 53), or in non-infected individuals (NI; n = 62). The QuantiFERON-TB Gold In-Tube (QFT-GIT) assay was used in order to screen for LTBI. The level of IgA against MIF was significantly lower in LTBI and ATB patients than in NI individuals, was significantly related to LTBI and ATB diagnosis, and it could discriminate between LTBI and ATB. In contrast, the level of IgG against MIF was significantly lower in LTBI patients than in NI individuals and was significantly related to LTBI diagnosis. Anti-MIF IgG levels were significantly lower in AFB-negative TB, minimal TB, and new ATB patients, than in the NI group. IgA and IgG levels against MIF both showed significant negative correlations with IFN-γ levels, as assessed using the QFT-GIT test. Although none of the antibodies could achieve high diagnostic predictive power individually, our results suggest the possibility of using IgA antibody responses to MIF in the diagnosis of LTBI and ATB.
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Affiliation(s)
- Ji Yeon Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, National Medical Center, Seoul 04564, Korea; (J.Y.L.); (J.K.); (J.K.); (J.-S.J.); (I.J.)
- Department of Biomedical Sciences, Microbiology and Immunology and Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea;
| | - Byoung-Jun Kim
- Department of Biomedical Sciences, Microbiology and Immunology and Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea;
| | - Jee-min Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, National Medical Center, Seoul 04564, Korea; (J.Y.L.); (J.K.); (J.K.); (J.-S.J.); (I.J.)
| | - Junghyun Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, National Medical Center, Seoul 04564, Korea; (J.Y.L.); (J.K.); (J.K.); (J.-S.J.); (I.J.)
| | - Joon-Sung Joh
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, National Medical Center, Seoul 04564, Korea; (J.Y.L.); (J.K.); (J.K.); (J.-S.J.); (I.J.)
| | - Ina Jeong
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, National Medical Center, Seoul 04564, Korea; (J.Y.L.); (J.K.); (J.K.); (J.-S.J.); (I.J.)
| | - Yoon-Hoh Kook
- Department of Biomedical Sciences, Microbiology and Immunology and Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea;
- Correspondence: (Y.-H.K.); (B.-J.K.); Tel.: +82-2-740-8306 (Y.-H.K.); +82-2-740-8316 (B.-J.K.)
| | - Bum-Joon Kim
- Department of Biomedical Sciences, Microbiology and Immunology and Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea;
- Correspondence: (Y.-H.K.); (B.-J.K.); Tel.: +82-2-740-8306 (Y.-H.K.); +82-2-740-8316 (B.-J.K.)
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Diagnostic Potential of IgG and IgA Responses to Mycobacterium t uberculosis Antigens for Discrimination among Active Tuberculosis, Latent Tuberculosis Infection, and Non-Infected Individuals. Microorganisms 2020; 8:microorganisms8070979. [PMID: 32629849 PMCID: PMC7409123 DOI: 10.3390/microorganisms8070979] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/26/2020] [Accepted: 06/29/2020] [Indexed: 12/14/2022] Open
Abstract
Tuberculosis remains a major public health problem. Conventional tests are inadequate to distinguish between active tuberculosis (ATB) and latent tuberculosis infection (LTBI). We measured antibody responses to Mycobacterium tuberculosis antigens (Mycobacterium tuberculosis chorismate mutase (TBCM), antigen 85B (Ag85B), early secreted antigen-6 (ESAT-6), and culture filtrate protein-10 (CFP-10) in ATB, LTBI, and non-infected (NI) individuals. Serum immunoglobulin G (IgG) and immunoglobulin A (IgA) levels were measured and the QuantiFERON-TB Gold In-Tube assay was used to diagnose LTBI. IgG levels against TBCM were significantly higher in LTBI than NI subjects. IgG and IgA levels against Ag85B and IgG levels against CFP-10 were significantly higher in ATB, followed by LTBI, and then NI. When the ATB group was subdivided, IgG levels against Ag85B and CFP-10 were significantly higher in each subgroup compared with those in LTBI and NI groups. Positive correlation trends between interferon-gamma and IgG levels against Ag85B, TBCM, and CFP-10 and IgA levels against Ag85B in LTBI and NI subjects were observed. Age- and sex-adjusted models showed that IgG against TBCM and CFP-10 was independently related to LTBI diagnosis, and IgG against Ag85B was independently related to the diagnosis of ATB and could distinguish between LTBI and ATB. Overall, IgG antibody responses to TBCM, Ag85B, and CFP-10 can discriminate among ATB, LTBI, and NI groups.
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Singh N, Sreenivas V, Sheoran A, Sharma S, Gupta KB, Khuller GK, Mehta PK. Serodiagnostic potential of immuno-PCR using a cocktail of mycobacterial antigen 85B, ESAT-6 and cord factor in tuberculosis patients. J Microbiol Methods 2016; 120:56-64. [DOI: 10.1016/j.mimet.2015.11.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 11/24/2015] [Accepted: 11/24/2015] [Indexed: 01/15/2023]
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Structural and functional characterization of a novel scFv anti-HSP60 of Strongyloides sp. Sci Rep 2015; 5:10447. [PMID: 25994608 PMCID: PMC4440035 DOI: 10.1038/srep10447] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 04/14/2015] [Indexed: 02/07/2023] Open
Abstract
Phage display is a powerful technology that selects specific proteins or peptides to a target. We have used Phage Display to select scFv (single-chain variable fragment) clones from a combinatorial library against total proteins of Strongyloides venezuelensis. After scFv characterization, further analysis demonstrated that this recombinant fragment of antibody was able to bind to an S. venezuelensis antigenic fraction of ~65 kDa, present in the body periphery and digestive system of infective larvae (L3), as demonstrated by immunofluorescence. Mass spectrometry results followed by bioinformatics analysis showed that this antigenic fraction was a heat shock protein 60 (HSP60) of Strongyloides sp. The selected scFv was applied in serodiagnosis by immune complexes detection in serum samples from individuals with strongyloidiasis using a sandwich enzyme-linked immunosorbent assay (ELISA), showing sensitivity of 97.5% (86.84–99.94), specificity of 98.81 (93.54–99.97), positive likelihood ratio of 81.60 and an area under the curve of 0.9993 (0.9973–1.000). Our study provided a novel monoclonal scFv antibody fragment which specifically bound to HSP60 of Strongyloides sp. and was applied in the development of an innovative serodiagnosis method for the human strongyloidiasis.
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Govender VS, Ramsugit S, Pillay M. Mycobacterium tuberculosis adhesins: potential biomarkers as anti-tuberculosis therapeutic and diagnostic targets. Microbiology (Reading) 2014; 160:1821-1831. [DOI: 10.1099/mic.0.082206-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Adhesion to host cells is a precursor to host colonization and evasion of the host immune response. Conversely, it triggers the induction of the immune response, a process vital to the host’s defence against infection. Adhesins are microbial cell surface molecules or structures that mediate the attachment of the microbe to host cells and thus the host–pathogen interaction. They also play a crucial role in bacterial aggregation and biofilm formation. In this review, we discuss the role of adhesins in the pathogenesis of the aetiological agent of tuberculosis, Mycobacterium tuberculosis. We also provide insight into the structure and characteristics of some of the characterized and putative M. tuberculosis adhesins. Finally, we examine the potential of adhesins as targets for the development of tuberculosis control strategies.
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Affiliation(s)
- Viveshree S. Govender
- Medical Microbiology and Infection Control, University of KwaZulu-Natal, Durban, South Africa
| | - Saiyur Ramsugit
- Medical Microbiology and Infection Control, University of KwaZulu-Natal, Durban, South Africa
| | - Manormoney Pillay
- Medical Microbiology and Infection Control, University of KwaZulu-Natal, Durban, South Africa
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Al-Zamel FA. Detection and diagnosis ofMycobacterium tuberculosis. Expert Rev Anti Infect Ther 2014; 7:1099-108. [DOI: 10.1586/eri.09.92] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Ranganathan U, Raja A. Purification of Antigen 85 Complex of Mycobacterium tuberculosis. Bio Protoc 2013. [DOI: 10.21769/bioprotoc.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Assessment of five antigens from Mycobacterium tuberculosis for serodiagnosis of tuberculosis. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2011; 18:565-70. [PMID: 21288992 DOI: 10.1128/cvi.00507-10] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis, is a major public health issue, particularly in developing countries, and thus effective diagnostic methods for TB remain a central theme in basic and clinical research. To evaluate five antigens (38-kDa protein [38kDa], Rv3621c, Rv3618, 38kDa-ESAT-6 [38E6], and Ag85B-HBHA [AH]) in serological tests for TB patients, we recruited 288 patients and 201 healthy controls. The median IgG reactivity to 38kDa, 38E6, and AH was higher than that to Rv3618 and Rv3621c in pulmonary TB. 38kDa and 38E6 provided high sensitivities in pulmonary TB but low sensitivities in extrapulmonary TB (EPTB). The specificities achieved by 38kDa and 38E6 ranged from 82.0% to 93.9% in patients with non-TB respiratory disease (PD) and in controls. 38kDa and 38E6 exhibited lower sensitivities and higher specificities than their combinations with Rv3618. These findings provide useful information on the relative importance of the above five antigens and suggest that combinations of Rv3618 with 38kDa and 38E6 can increase their sensitivities, but their specificities need to be further increased.
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Kumar G, Dagur PK, Singh PK, Shankar H, Yadav VS, Katoch VM, Bajaj B, Gupta R, Sengupta U, Joshi B. Serodiagnostic efficacy of Mycobacterium tuberculosis 30/32-kDa mycolyl transferase complex, ESAT-6, and CFP-10 in patients with active tuberculosis. Arch Immunol Ther Exp (Warsz) 2010; 58:57-65. [PMID: 20049651 PMCID: PMC2816261 DOI: 10.1007/s00005-009-0055-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2009] [Accepted: 06/02/2009] [Indexed: 01/08/2023]
Abstract
Elimination of tuberculosis (TB) largely depends upon definitive rapid diagnosis and treatment. Widely used diagnostic tests do not qualify for use in a developing country due to lack of either desired accuracy or their cost. In the present study an enzyme-linked immunosorbent assay was used to evaluate the diagnostic potential of an immuno-dominant 30/32-kDa mycolyl transferase complex (Ag85 complex) and Mycobacterium tuberculosis-specific proteins (ESAT-6 and CFP-10) of the RD1 region. Higher sensitivity (84.1%) with Ag85 complex was observed compared with ESAT-6 (64.9%) and CFP-10 (66%), with almost similar specificity (Ag85: 85.2%, ESAT-6: 88.9%, CFP-10: 85.2%), whereas the individual components of Ag85 complex, i.e. Ag85A, Ag85B, and Ag85C, showed sensitivities of 44.6, 34, and 80.9% and specificities of 55.6, 74.1, and 40.7% respectively. A cocktail of Ag85 complex, ESAT-6, CFP-10, Ag85A, Ag85B, and Ag85C antigens also could not help in increasing either sensitivity (51.1%) or specificity (85.2%). Furthermore, immunoblot analysis using clinical isolates as well as a standard strain (H37Rv) of M. tuberculosis also showed strong reactivity of sera from TB patients to Ag85 complex and, to a lesser extent, also to ESAT-6. To conclude, use of Ag85 complex along with ESAT-6 and CFP-10 seems to be promising in minimizing the heterogeneous sero-responses of adult TB cases.
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Affiliation(s)
- Gavish Kumar
- National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Taj Ganj, Agra, India
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Steingart KR, Dendukuri N, Henry M, Schiller I, Nahid P, Hopewell PC, Ramsay A, Pai M, Laal S. Performance of purified antigens for serodiagnosis of pulmonary tuberculosis: a meta-analysis. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2009; 16:260-76. [PMID: 19052159 PMCID: PMC2643545 DOI: 10.1128/cvi.00355-08] [Citation(s) in RCA: 141] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2008] [Revised: 11/04/2008] [Accepted: 11/24/2008] [Indexed: 11/20/2022]
Abstract
Serological antibody detection tests for tuberculosis may offer the potential to improve diagnosis. Recent meta-analyses have shown that commercially available tests have variable accuracies and a limited clinical role. We reviewed the immunodiagnostic potential of antigens evaluated in research laboratories (in-house) for the serodiagnosis of pulmonary tuberculosis and conducted a meta-analysis to evaluate the performance of comparable antigens. Selection criteria included the participation of at least 25 pulmonary tuberculosis patients and the use of purified antigens. Studies evaluating 38 kDa, MPT51, malate synthase, culture filtrate protein 10, TbF6, antigen 85B, alpha-crystallin, 2,3-diacyltrehalose, 2,3,6-triacyltrehalose, 2,3,6,6'-tetraacyltrehalose 2'-sulfate, cord factor, and TbF6 plus DPEP (multiple antigen) were included in the meta-analysis. The results demonstrated that (i) in sputum smear-positive patients, sensitivities significantly >or=50% were provided for recombinant malate synthase (73%; 95% confidence interval [CI], 58 to 85) and TbF6 plus DPEP (75%; 95% CI, 50 to 91); (ii) protein antigens achieved high specificities; (iii) among the lipid antigens, cord factor had the best overall performance (sensitivity, 69% [95% CI, 28 to 94]; specificity, 91% [95% CI, 78 to 97]); (iv) compared with the sensitivities achieved with single antigens (median sensitivity, 53%; range, 2% to 100%), multiple antigens yielded higher sensitivities (median sensitivity, 76%; range, 16% to 96%); (v) in human immunodeficiency virus (HIV)-infected patients who are sputum smear positive, antibodies to several single and multiple antigens were detected; and (vi) data on seroreactivity to antigens in sputum smear-negative or pediatric patients were insufficient. Potential candidate antigens for an antibody detection test for pulmonary tuberculosis in HIV-infected and -uninfected patients have been identified, although no antigen achieves sufficient sensitivity to replace sputum smear microscopy. Combinations of select antigens provide higher sensitivities than single antigens. The use of a case-control design with healthy controls for the majority of studies was a limitation of the review. Efforts are needed to improve the methodological quality of tuberculosis diagnostic studies.
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Affiliation(s)
- Karen R Steingart
- Francis J. Curry National Tuberculosis Center, University of California, San Francisco, 3180 18th Street, Suite 101, San Francisco, CA 94110-2028, USA.
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Raja A, Ranganathan UD, Bethunaickan R. Improved diagnosis of pulmonary tuberculosis by detection of antibodies against multiple Mycobacterium tuberculosis antigens. Diagn Microbiol Infect Dis 2008; 60:361-8. [PMID: 18206332 DOI: 10.1016/j.diagmicrobio.2007.11.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2007] [Revised: 11/19/2007] [Accepted: 11/22/2007] [Indexed: 11/19/2022]
Abstract
Two secreted antigens (38 and 30 kDa) and 1 cytosolic antigen (16 kDa) were purified in our laboratory from Mycobacterium tuberculosis culture filtrate and cytosol using chromatographic/electrophoretic methods. One recombinant antigen (27 kDa, MPT51) expressed in Escherichia coli was also isolated. All the 4 antigens were tested individually for detection of serum IgG, IgA, and IgM (a total of 476 sera from 5 groups) by indirect enzyme-linked immunosorbent assay. Keeping the well-reported 38 kDa as the main candidate, the usefulness of the other antigens, which may add to the test positivity in cases not diagnosed by 38 kDa, was analyzed. The individual antigens ranged in their sensitivity from 57% to 67% (IgG). Addition of other antigen results, with that of 38 kDa, offered a sensitivity of 91% in smear- and culture-positive tuberculosis (TB), 78% in smear-negative culture-confirmed TB, and 97% specificity in normal healthy subjects. IgG antibody to multiple antigens (38, 30, and 16 kDa) may be a sensitive, specific, rapid, and cost-effective test to rule-in clinical suspicion of pulmonary TB.
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Affiliation(s)
- Alamelu Raja
- Department of Immunology, Tuberculosis Research Centre (ICMR), Chetput, Chennai 600 031, India.
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Humoral immune responses of tuberculosis patients in Brazil indicate recognition of Mycobacterium tuberculosis MPT-51 and GlcB. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2008; 15:579-81. [PMID: 18199739 DOI: 10.1128/cvi.00359-07] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The humoral responses to recombinant MPT-51 and GlcB was determined by using an enzyme-linked immunosorbent assay. Levels of immunoglobulin M (IgM) against MPT-51 and IgG against GlcB were higher among tuberculosis (TB) patients than among control individuals. When the MPT-51 and GlcB assays were combined, 90.8% specificity and 75.5% sensitivity were observed. MPT-51 and GlcB were recognized in the humoral responses of Brazilian TB patients.
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Bethunaickan R, Baulard AR, Locht C, Raja A. Antibody response in pulmonary tuberculosis against recombinant 27kDa (MPT51, Rv3803c) protein of Mycobacterium tuberculosis. ACTA ACUST UNITED AC 2007; 39:867-74. [PMID: 17852894 DOI: 10.1080/00365540701402954] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The objective of this study is to evaluate the recombinant 27kDa (MPT51, Rv3803c) antigen of M. tuberculosis H37Rv, expressed in E. coli in enzyme linked immunosorbent assays (ELISA) to estimate the IgG, IgA and IgM levels in sera from adult pulmonary tuberculosis patients and control groups. Sera from smear and culture positive tuberculosis patients (S + C +) were positive for anti-MPT51 IgG, IgA and IgM, with a sensitivity of 57%, 47% and 13%, respectively. The sensitivity of the test improved to a level of 71% for IgG+IgA without significantly compromising the specificity (IgG of 98%, IgG+IgA of 95%). Addition of IgM results did not enhance the sensitivity appreciably, over and above that of IgG+IgA (72% vs 71%). Among the smear-negative but culture-positive cases (S-C+), 34% were positive for IgG, while in smear and culture-negative but X-ray-positive cases (S-C-), 42% were positive for IgG. Polyethylene glycol precipitation (PEG) of the circulating immune complex (CIC) in sera was carried out. The CIC-bound antibodies to MPT51 were assessed using ELISA. Measuring the IgG+IgA combination positivities of the CIC-bound antibodies gave a poor sensitivity of 21%, 18% and 10%, respectively. The specificity of the assay by these combinations was maintained at 94%.
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Murthy MK, Parasa RRV, Deenadayalan A, Sharma P, Raja A. Evaluation of the diagnostic potential of region of deletion-1-encoded antigen culture filtrate protein-10 in pulmonary tuberculosis. Diagn Microbiol Infect Dis 2007; 59:295-302. [PMID: 17878067 DOI: 10.1016/j.diagmicrobio.2007.05.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2007] [Revised: 05/14/2007] [Accepted: 05/22/2007] [Indexed: 10/22/2022]
Abstract
The ability of region of deletion-1 (RD-1)-encoded culture filtrate protein-10 (CFP-10) to supplement the sensitivity of 38-kDa antigen was studied using enzyme-linked immunosorbent assay in pulmonary tuberculosis (TB) patients and controls. The sensitivities for individual antigens ranged from 50% to 60%, and the specificity was 100% for immunoglobulin (Ig) G alone. When IgA results were added to IgG, the sensitivity increased. On combination of the isotype results, sensitivity increased to 61.8% and 57.2% (for 38-kDa antigen and CFP-10), respectively, and specificity changed to 98.8% and 99.4% for 38-kDa and CFP-10, respectively. Combination of results of both the antigens gave 82.4% sensitivity in smear-positive and culture-positive group, and 98.1% specificity. In smear-negative and culture-positive group, the sensitivity was 66.7%. In smear-negative and culture-negative cases, a sensitivity of 65.6% was obtained. This study demonstrates that the use of RD-1-encoded CFP-10 enhances the sensitivity of 38-kDa antigen and can be a useful diagnostic marker in TB.
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Affiliation(s)
- Madhan Kumar Murthy
- Department of Immunology, Tuberculosis Research Centre (ICMR), Chetput, Chennai, 600 031, India
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Abebe F, Holm-Hansen C, Wiker HG, Bjune G. Progress in serodiagnosis of Mycobacterium tuberculosis infection. Scand J Immunol 2007; 66:176-91. [PMID: 17635795 DOI: 10.1111/j.1365-3083.2007.01978.x] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
One-third of the world population is estimated to have Mycobacterium tuberculosis infection. Accurate and timely identification of infected individuals is critical for treatment and control. The current diagnostic methods lack the desired sensitivity and specificity, require sophisticated equipment and skilled workforce or take weeks to yield results. Diagnosis of extrapulmonary TB, TB-HIV co-infection, childhood TB and sputum smear-negative pulmonary TB pose serious challenges. Interest in developing serodiagnostic methods is increasing because detection of antibody is rapid, simple and relatively inexpensive, and does not require a living cell for detection. Three types of tests, namely screening tests to overcome diagnostic delay, specific tests for diagnosis of extrapulmonary TB and other bacteriologically negative cases, and tests for vaccine-induced immunity need critical consideration. Several factors must be considered to develop serodiagnostic methods for TB. Antigen recognition by infected individuals is highly heterogeneous due to stage of disease, differences in HLA types, strain of the bacilli, health of the patient and bacillary load. With advances in molecular biological techniques, a number of novel antigens have been identified. Some of these antigens have proven valuable in detecting specific antibodies in some of the most challenging TB patients. The best example is a fusion protein containing several M. tuberculosis proteins (e.g. CFP-10, MTB8, MTB48, MTB81 and the 38-kDa protein) which showed encouraging results in detecting antibodies in sera of patients, including TB-HIV co-infection. This review presents progress made in the serodiagnosis of TB during the last decade.
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Affiliation(s)
- F Abebe
- Institute for General Practice and Community Medicine, Section for International Health, University of Oslo, Oslo, Norway.
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Raja A, Ranganathan UD, Ramalingam B. Clinical value of specific detection of immune complex-bound antibodies in pulmonary tuberculosis. Diagn Microbiol Infect Dis 2006; 56:281-7. [PMID: 16876372 DOI: 10.1016/j.diagmicrobio.2006.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2006] [Revised: 05/10/2006] [Accepted: 06/03/2006] [Indexed: 10/24/2022]
Abstract
Two actively secreted (38 and 30 kDa) and 1 cytosolic (16 kDa) antigens were purified from Mycobacterium tuberculosis culture filtrate and cytosol, respectively, using a combination of chromatographic and electrophoretic methods. One recombinant antigen (27 kDa) overexpressed in Escherichia coli was also isolated. The diagnostic test characteristics of circulating immune complex (CIC)-bound antibodies to purified protein antigens, singly and in combination, were evaluated in patients with pulmonary tuberculosis. The individual antigens ranged in their sensitivity from 73% to 88%, while considering the IgG response. Addition of IgA results improved the sensitivity. The combination of IgG results for 38, 30, and 16 kDa offered >95% sensitivity and specificity for the smear- and culture-positive tuberculosis, as well as for the smear-negative, culture-positive group. CIC-bound antibodies promise to be a better diagnostic tool than serum antibodies.
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Affiliation(s)
- Alamelu Raja
- Department of Immunology, Tuberculosis Research Centre (ICMR), Chennai-600 031, India.
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