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Bigi MM, Forrellad MA, García JS, Blanco FC, Vázquez CL, Bigi F. An update on Mycobacterium tuberculosis lipoproteins. Future Microbiol 2023; 18:1381-1398. [PMID: 37962486 DOI: 10.2217/fmb-2023-0088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/29/2023] [Indexed: 11/15/2023] Open
Abstract
Almost 3% of the proteins of Mycobacterium tuberculosis (M. tuberculosis), the main causative agent of human tuberculosis, are lipoproteins. These lipoproteins are characteristic of the mycobacterial cell envelope and participate in many mechanisms involved in the pathogenesis of M. tuberculosis. In this review, the authors provide an updated analysis of M. tuberculosis lipoproteins and categorize them according to their demonstrated or predicted functions, including transport of compounds to and from the cytoplasm, biosynthesis of the mycobacterial cell envelope, defense and resistance mechanisms, enzymatic activities and signaling pathways. In addition, this updated analysis revealed that at least 40% of M. tuberculosis lipoproteins are glycosylated.
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Affiliation(s)
- María M Bigi
- Instituto de Investigaciones Biomédicas, CONICET, Universidad de Buenos Aires, Paraguay 2155 (C1121ABG), Buenos Aires, Argentina
| | - Marina A Forrellad
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
| | - Julia S García
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
| | - Federico C Blanco
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
| | - Cristina L Vázquez
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
| | - Fabiana Bigi
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, Argentina (INTA), N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
- Instituto de Agrobiotecnología y Biología Molecular, INTA-CONICET, N. Repetto & de los Reseros, Hurlingham (1686), Buenos Aires, Argentina
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Garcia-Rodriguez KM, Goenka A, Thomson DD, Bahri R, Tontini C, Salcman B, Hernandez-Pando R, Bulfone-Paus S. Bacillus Calmette-Guérin-Induced Human Mast Cell Activation Relies on IL-33 Priming. Int J Mol Sci 2022; 23:7549. [PMID: 35886897 PMCID: PMC9320129 DOI: 10.3390/ijms23147549] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 02/04/2023] Open
Abstract
Bacillus Calmette-Guérin (BCG) vaccine is an attenuated strain of Mycobacterium bovis that provides weak protection against tuberculosis (TB). Mast cells (MCs) are tissue-resident immune cells strategically that serve as the first line of defence against pathogenic threats. In this study, we investigated the response of human MCs (hMCs) to BCG. We found that naïve hMCs exposed to BCG did not secrete cytokines, degranulate, or support the uptake and intracellular growth of bacteria. Since we could show that in hMCs IL-33 promotes the transcription of host-pathogen interaction, cell adhesion and activation genes, we used IL-33 for cell priming. The treatment of hMCs with IL-33, but not IFN-γ, before BCG stimulation increased IL-8, MCP-1 and IL-13 secretion, and induced an enhanced expression of the mycobacteria-binding receptor CD48. These effects were comparable to those caused by the recombinant Mycobacterium tuberculosis (Mtb) 19-KDa lipoprotein. Finally, stimulation of hMCs with IL-33 incremented MC-BCG interactions. Thus, we propose that IL-33 may improve the immunogenicity of BCG vaccine by sensitising hMCs.
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Affiliation(s)
- Karen M. Garcia-Rodriguez
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK; (K.M.G.-R.); (D.D.T.); (R.B.); (C.T.); (B.S.)
- School of Materials, Faculty of Science and Engineering, University of Manchester, Manchester M13 9PL, UK
| | - Anu Goenka
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TH, UK;
| | - Darren D. Thomson
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK; (K.M.G.-R.); (D.D.T.); (R.B.); (C.T.); (B.S.)
- MRC Centre for Medical Mycology, University of Exeter, Exeter EX4 4PY, UK
| | - Rajia Bahri
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK; (K.M.G.-R.); (D.D.T.); (R.B.); (C.T.); (B.S.)
| | - Chiara Tontini
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK; (K.M.G.-R.); (D.D.T.); (R.B.); (C.T.); (B.S.)
| | - Barbora Salcman
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK; (K.M.G.-R.); (D.D.T.); (R.B.); (C.T.); (B.S.)
| | - Rogelio Hernandez-Pando
- Experimental Pathology Section, Department of Pathology, National Institute of Medical Sciences and Nutrition “Salvador Zubirán”, Mexico City 14080, Mexico;
| | - Silvia Bulfone-Paus
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK; (K.M.G.-R.); (D.D.T.); (R.B.); (C.T.); (B.S.)
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Lessons from Bacillus Calmette-Guérin: Harnessing Trained Immunity for Vaccine Development. Cells 2020; 9:cells9092109. [PMID: 32948003 PMCID: PMC7564904 DOI: 10.3390/cells9092109] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/10/2020] [Accepted: 09/16/2020] [Indexed: 12/16/2022] Open
Abstract
Vaccine design traditionally focuses on inducing adaptive immune responses against a sole target pathogen. Considering that many microbes evade innate immune mechanisms to initiate infection, and in light of the discovery of epigenetically mediated innate immune training, the paradigm of vaccine design has the potential to change. The Bacillus Calmette-Guérin (BCG) vaccine induces some level of protection against Mycobacterium tuberculosis (Mtb) while stimulating trained immunity that correlates with lower mortality and increased protection against unrelated pathogens. This review will explore BCG-induced trained immunity, including the required pathways to establish this phenotype. Additionally, potential methods to improve or expand BCG trained immunity effects through alternative vaccine delivery and formulation methods will be discussed. Finally, advances in new anti-Mtb vaccines, other antimicrobial uses for BCG, and “innate memory-based vaccines” will be examined.
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