1
|
Touré H, Galindo LA, Lagune M, Glatigny S, Waterhouse RM, Guénal I, Herrmann JL, Girard-Misguich F, Szuplewski S. Mycobacterium abscessus resists the innate cellular response by surviving cell lysis of infected phagocytes. PLoS Pathog 2023; 19:e1011257. [PMID: 36972320 PMCID: PMC10079227 DOI: 10.1371/journal.ppat.1011257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 04/06/2023] [Accepted: 02/28/2023] [Indexed: 03/29/2023] Open
Abstract
Mycobacterium abscessus is the most pathogenic species among the predominantly saprophytic fast-growing mycobacteria. This opportunistic human pathogen causes severe infections that are difficult to eradicate. Its ability to survive within the host was described mainly with the rough (R) form of M. abscessus, which is lethal in several animal models. This R form is not present at the very beginning of the disease but appears during the progression and the exacerbation of the mycobacterial infection, by transition from a smooth (S) form. However, we do not know how the S form of M. abscessus colonizes and infects the host to then multiply and cause the disease. In this work, we were able to show the hypersensitivity of fruit flies, Drosophila melanogaster, to intrathoracic infections by the S and R forms of M. abscessus. This allowed us to unravel how the S form resists the innate immune response developed by the fly, both the antimicrobial peptides- and cellular-dependent immune responses. We demonstrate that intracellular M. abscessus was not killed within the infected phagocytic cells, by resisting lysis and caspase-dependent apoptotic cell death of Drosophila infected phagocytes. In mice, in a similar manner, intra-macrophage M. abscessus was not killed when M. abscessus-infected macrophages were lysed by autologous natural killer cells. These results demonstrate the propensity of the S form of M. abscessus to resist the host’s innate responses to colonize and multiply within the host.
Collapse
Affiliation(s)
- Hamadoun Touré
- Université Paris-Saclay, UVSQ, INSERM, Infection et Inflammation, Montigny-Le-Bretonneux, France
| | - Lee Ann Galindo
- Université Paris-Saclay, UVSQ, INSERM, Infection et Inflammation, Montigny-Le-Bretonneux, France
| | - Marion Lagune
- Université Paris-Saclay, UVSQ, INSERM, Infection et Inflammation, Montigny-Le-Bretonneux, France
| | - Simon Glatigny
- Université Paris-Saclay, UVSQ, INSERM, Infection et Inflammation, Montigny-Le-Bretonneux, France
| | - Robert M. Waterhouse
- Department of Ecology and Evolution, University of Lausanne, and the Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | | | - Jean-Louis Herrmann
- Université Paris-Saclay, UVSQ, INSERM, Infection et Inflammation, Montigny-Le-Bretonneux, France
- Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Ile-de-France Ouest, GHU Paris-Saclay, Hôpital Raymond Poincaré, Garches, France
| | - Fabienne Girard-Misguich
- Université Paris-Saclay, UVSQ, INSERM, Infection et Inflammation, Montigny-Le-Bretonneux, France
- * E-mail: (FGM); (SS)
| | | |
Collapse
|
2
|
Correia-Neves M, Nigou J, Mousavian Z, Sundling C, Källenius G. Immunological hyporesponsiveness in tuberculosis: The role of mycobacterial glycolipids. Front Immunol 2022; 13:1035122. [PMID: 36544778 PMCID: PMC9761185 DOI: 10.3389/fimmu.2022.1035122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 10/25/2022] [Indexed: 12/09/2022] Open
Abstract
Glycolipids constitute a major part of the cell envelope of Mycobacterium tuberculosis (Mtb). They are potent immunomodulatory molecules recognized by several immune receptors like pattern recognition receptors such as TLR2, DC-SIGN and Dectin-2 on antigen-presenting cells and by T cell receptors on T lymphocytes. The Mtb glycolipids lipoarabinomannan (LAM) and its biosynthetic relatives, phosphatidylinositol mannosides (PIMs) and lipomannan (LM), as well as other Mtb glycolipids, such as phenolic glycolipids and sulfoglycolipids have the ability to modulate the immune response, stimulating or inhibiting a pro-inflammatory response. We explore here the downmodulating effect of Mtb glycolipids. A great proportion of the studies used in vitro approaches although in vivo infection with Mtb might also lead to a dampening of myeloid cell and T cell responses to Mtb glycolipids. This dampened response has been explored ex vivo with immune cells from peripheral blood from Mtb-infected individuals and in mouse models of infection. In addition to the dampening of the immune response caused by Mtb glycolipids, we discuss the hyporesponse to Mtb glycolipids caused by prolonged Mtb infection and/or exposure to Mtb antigens. Hyporesponse to LAM has been observed in myeloid cells from individuals with active and latent tuberculosis (TB). For some myeloid subsets, this effect is stronger in latent versus active TB. Since the immune response in individuals with latent TB represents a more protective profile compared to the one in patients with active TB, this suggests that downmodulation of myeloid cell functions by Mtb glycolipids may be beneficial for the host and protect against active TB disease. The mechanisms of this downmodulation, including tolerance through epigenetic modifications, are only partly explored.
Collapse
Affiliation(s)
- Margarida Correia-Neves
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal,Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics Research Group (ICVS/3B's), Portuguese (PT) Government Associate Laboratory, Braga, Portugal,Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Jérôme Nigou
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier, Toulouse, France
| | - Zaynab Mousavian
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden,School of Mathematics, Statistics, and Computer Science, College of Science, University of Tehran, Tehran, Iran,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Christopher Sundling
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden,Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Gunilla Källenius
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden,*Correspondence: Gunilla Källenius,
| |
Collapse
|
3
|
Le Moigne V, Blouquit-Laye S, Desquesnes A, Girard-Misguich F, Herrmann JL. Liposomal amikacin and Mycobacterium abscessus: intimate interactions inside eukaryotic cells. J Antimicrob Chemother 2022; 77:3496-3503. [PMID: 36253948 DOI: 10.1093/jac/dkac348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/26/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Mycobacterium abscessus (Mabs), a rapidly growing Mycobacterium species, is considered an MDR organism. Among the standard antimicrobial multi-drug regimens against Mabs, amikacin is considered as one of the most effective. Parenteral amikacin, as a consequence of its inability to penetrate inside the cells, is only active against extracellular mycobacteria. The use of inhaled liposomal amikacin may yield improved intracellular efficacy by targeting Mabs inside the cells, while reducing its systemic toxicity. OBJECTIVES To evaluate the colocalization of an amikacin liposomal inhalation suspension (ALIS) with intracellular Mabs, and then to measure its intracellular anti-Mabs activity. METHODS We evaluated the colocalization of ALIS with Mabs in eukaryotic cells such as macrophages (THP-1 and J774.2) or pulmonary epithelial cells (BCi-NS1.1 and MucilAir), using a fluorescent ALIS and GFP-expressing Mabs, to test whether ALIS reaches intracellular Mabs. We then evaluated the intracellular anti-Mabs activity of ALIS inside macrophages using cfu and/or luminescence. RESULTS Using confocal microscopy, we demonstrated fluorescent ALIS and GFP-Mabs colocalization in macrophages and epithelial cells. We also showed that ALIS was active against intracellular Mabs at a concentration of 32 to 64 mg/L, at 3 and 5 days post-infection. Finally, ALIS intracellular activity was confirmed when tested against 53 clinical Mabs isolates, showing intracellular growth reduction for nearly 80% of the isolates. CONCLUSIONS Our experiments demonstrate the intracellular localization and intracellular contact between Mabs and ALIS, and antibacterial activity against intracellular Mabs, showing promise for its future use for Mabs pulmonary infections.
Collapse
Affiliation(s)
- Vincent Le Moigne
- Pensez à respecter la signature institutionnelle (think to respect the institutional signature): Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, 78180, Montigny-Le-Bretonneux, France
| | - Sabine Blouquit-Laye
- Pensez à respecter la signature institutionnelle (think to respect the institutional signature): Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, 78180, Montigny-Le-Bretonneux, France
| | - Aurore Desquesnes
- Pensez à respecter la signature institutionnelle (think to respect the institutional signature): Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, 78180, Montigny-Le-Bretonneux, France
| | - Fabienne Girard-Misguich
- Pensez à respecter la signature institutionnelle (think to respect the institutional signature): Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, 78180, Montigny-Le-Bretonneux, France
| | - Jean-Louis Herrmann
- Pensez à respecter la signature institutionnelle (think to respect the institutional signature): Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, 78180, Montigny-Le-Bretonneux, France.,AP-HP, GHU Paris-Saclay, Hôpital Raymond Poincaré, Service de Microbiologie, Garches, France
| |
Collapse
|
4
|
Singh S, Maurya SK, Aqdas M, Bashir H, Arora A, Bhalla V, Agrewala JN. Mycobacterium tuberculosis exploits MPT64 to generate myeloid-derived suppressor cells to evade the immune system. Cell Mol Life Sci 2022; 79:567. [DOI: 10.1007/s00018-022-04596-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/19/2022] [Accepted: 10/09/2022] [Indexed: 11/24/2022]
|
5
|
Kim H, Shin SJ. Pathological and protective roles of dendritic cells in Mycobacterium tuberculosis infection: Interaction between host immune responses and pathogen evasion. Front Cell Infect Microbiol 2022; 12:891878. [PMID: 35967869 PMCID: PMC9366614 DOI: 10.3389/fcimb.2022.891878] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 07/08/2022] [Indexed: 11/13/2022] Open
Abstract
Dendritic cells (DCs) are principal defense components that play multifactorial roles in translating innate immune responses to adaptive immunity in Mycobacterium tuberculosis (Mtb) infections. The heterogeneous nature of DC subsets follows their altered functions by interacting with other immune cells, Mtb, and its products, enhancing host defense mechanisms or facilitating pathogen evasion. Thus, a better understanding of the immune responses initiated, promoted, and amplified or inhibited by DCs in Mtb infection is an essential step in developing anti-tuberculosis (TB) control measures, such as host-directed adjunctive therapy and anti-TB vaccines. This review summarizes the recent advances in salient DC subsets, including their phenotypic classification, cytokine profiles, functional alterations according to disease stages and environments, and consequent TB outcomes. A comprehensive overview of the role of DCs from various perspectives enables a deeper understanding of TB pathogenesis and could be useful in developing DC-based vaccines and immunotherapies.
Collapse
|
6
|
Singh A, Anang V, Verma C, Saraswati SSK, Rana AK, Bandyopadhyay U, Chadha A, Natarajan K. Bcl2 negatively regulates Protective Immune Responses During Mycobacterial Infection. Biomol Concepts 2021; 12:94-109. [PMID: 34304400 DOI: 10.1515/bmc-2021-0010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/07/2021] [Indexed: 02/07/2023] Open
Abstract
We previously reported that M. tb on its own as well as together with HIV inhibits macrophage apoptosis by upregulating the expression of Bcl2 and Inhibitor of Apoptosis (IAP). In addition, recent reports from our lab showed that stimulation of either macrophages or BMDCs results in the significant upregulation of Bcl2. In this report, we delineate the role of Bcl2 in mediating defense responses from dendritic cells (BMDCs) during mycobacterial infection. Inhibiting Bcl2 led to a significant decrease in intracellular bacterial burden in BMDCs. To further characterize the role of Bcl2 in modulating defense responses, we inhibited Bcl2 in BMDCs as well as human PBMCs to monitor their activation and functional status in response to mycobacterial infection and stimulation with M. tb antigen Rv3416. Inhibiting Bcl2 generated protective responses including increased expression of co-stimulatory molecules, oxidative burst, pro-inflammatory cytokine expression and autophagy. Finally, co-culturing human PBMCs and BMDCs with antigen-primed T cells increased their proliferation, activation and effector function. These results point towards a critical role for Bcl2 in regulating BMDCs defense responses to mycobacterial infection.
Collapse
Affiliation(s)
- Aayushi Singh
- Infectious Disease Immunology Lab, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | - Vandana Anang
- Infectious Disease Immunology Lab, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | - Chaitenya Verma
- Infectious Disease Immunology Lab, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | | | - Ankush Kumar Rana
- Infectious Disease Immunology Lab, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | - Upasana Bandyopadhyay
- Infectious Disease Immunology Lab, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | - Attinder Chadha
- Infectious Disease Immunology Lab, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| | - Krishnamurthy Natarajan
- Infectious Disease Immunology Lab, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India
| |
Collapse
|
7
|
Le Moigne V, Roux AL, Jobart-Malfait A, Blanc L, Chaoui K, Burlet-Schiltz O, Gaillard JL, Canaan S, Nigou J, Herrmann JL. A TLR2-Activating Fraction From Mycobacterium abscessus Rough Variant Demonstrates Vaccine and Diagnostic Potential. Front Cell Infect Microbiol 2020; 10:432. [PMID: 32984067 PMCID: PMC7481331 DOI: 10.3389/fcimb.2020.00432] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 07/14/2020] [Indexed: 11/17/2022] Open
Abstract
Mycobacterium abscessus is a prevalent pathogenic mycobacterium in cystic fibrosis (CF) patients and one of the most highly drug resistant mycobacterial species to antimicrobial agents. It possesses the property to transition from a smooth (S) to a rough (R) morphotype, thereby influencing the host innate immune response. This transition from the S to the R morphotype takes place in patients with an exacerbation of the disease and a persistence of M. abscessus. We have previously shown that the exacerbation of the Toll-like receptor 2 (TLR2)-mediated inflammatory response, following this S to R transition, is essentially due to overproduction of bacilli cell envelope surface compounds, which we were able to extract by mechanical treatment and isolation by solvent partition in a fraction called interphase. Here, we set up a purification procedure guided by bioactivity to isolate a fraction from the R variant of M. abscessus cells which exhibits a high TLR2 stimulating activity, referred to as TLR2-enriched fraction (TLR2eF). As expected, TLR2eF was found to contain several lipoproteins and proteins known to be stimuli for TLR2. Vaccination with TLR2eF showed no protection toward an M. abscessus aerosol challenge, but provided mild protection in ΔF508 mice and their FVB littermates when intravenously challenged by M. abscessus. Interestingly however, antibodies against TLR2eF compounds were detected during disease in CF patients. In conclusion, we show the potential for compounds in TLR2eF as vaccine and diagnostic candidates, in order to enhance diagnosis, prevent and/or treat M. abscessus-related infections.
Collapse
Affiliation(s)
- Vincent Le Moigne
- Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, Montigny-le-Bretonneux, France
| | - Anne-Laure Roux
- Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, Montigny-le-Bretonneux, France
| | - Aude Jobart-Malfait
- Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, Montigny-le-Bretonneux, France
| | - Landry Blanc
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, Université Paul Sabatier, Toulouse, France
| | - Karima Chaoui
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, Université Paul Sabatier, Toulouse, France
| | - Odile Burlet-Schiltz
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, Université Paul Sabatier, Toulouse, France
| | - Jean-Louis Gaillard
- Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, Montigny-le-Bretonneux, France
| | - Stéphane Canaan
- Université Aix-Marseille, CNRS, LISM, IMM FR3479, Marseille, France
| | - Jérôme Nigou
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, Université Paul Sabatier, Toulouse, France
| | - Jean-Louis Herrmann
- Université Paris-Saclay, UVSQ, Inserm, Infection et inflammation, Montigny-le-Bretonneux, France.,APHP, GHU Paris-Saclay, Hôpital Raymond Poincaré, Service de Microbiologie, Garches, France
| |
Collapse
|
8
|
Rodrigues TS, Conti BJ, Fraga-Silva TFDC, Almeida F, Bonato VLD. Interplay between alveolar epithelial and dendritic cells and Mycobacterium tuberculosis. J Leukoc Biol 2020; 108:1139-1156. [PMID: 32620048 DOI: 10.1002/jlb.4mr0520-112r] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 05/09/2020] [Accepted: 05/25/2020] [Indexed: 12/20/2022] Open
Abstract
The innate response plays a crucial role in the protection against tuberculosis development. Moreover, the initial steps that drive the host-pathogen interaction following Mycobacterium tuberculosis infection are critical for the development of adaptive immune response. As alveolar Mϕs, airway epithelial cells, and dendritic cells can sense the presence of M. tuberculosis and are the first infected cells. These cells secrete mediators, which generate inflammatory signals that drive the differentiation and activation of the T lymphocytes necessary to clear the infection. Throughout this review article, we addressed the interaction between epithelial cells and M. tuberculosis, as well as the interaction between dendritic cells and M. tuberculosis. The understanding of the mechanisms that modulate those interactions is critical to have a complete view of the onset of an infection and may be useful for the development of dendritic cell-based vaccine or immunotherapies.
Collapse
Affiliation(s)
- Tamara Silva Rodrigues
- Basic and Applied Immunology Program, Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Bruno José Conti
- Basic and Applied Immunology Program, Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Thais Fernanda de Campos Fraga-Silva
- Basic and Applied Immunology Program, Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Fausto Almeida
- Basic and Applied Immunology Program, Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Vânia Luiza Deperon Bonato
- Basic and Applied Immunology Program, Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| |
Collapse
|
9
|
Zhou KL, Li X, Zhang XL, Pan Q. Mycobacterial mannose-capped lipoarabinomannan: a modulator bridging innate and adaptive immunity. Emerg Microbes Infect 2019; 8:1168-1177. [PMID: 31379262 PMCID: PMC6713153 DOI: 10.1080/22221751.2019.1649097] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Mannose-capped lipoarabinomannan (ManLAM) is a high molecular mass amphipathic lipoglycan identified in pathogenic Mycobacterium tuberculosis (M. tb) and M. bovis Bacillus Calmette-Guérin (BCG). ManLAM, serves as both an immunogen and a modulator of the host immune system, and its critical role in mycobacterial survival during infection has been well-characterized. ManLAM can be recognized by various types of receptors on both innate and adaptive immune cells, including macrophages, dendritic cells (DCs), neutrophils, natural killer T (NKT) cells, T cells and B cells. MamLAM has been shown to affect phagocytosis, cytokine production, antigen presentation, T cell activation and polarization, as well as antibody production. Exploring the mechanisms underlying the roles of ManLAM during mycobacterial infection will aid in improving tuberculosis (TB) prevention, diagnosis and treatment interventions. In this review, we highlight the interaction between ManLAM and receptors, intracellular signalling pathways triggered by ManLAM and its roles in both innate and adaptive immune responses.
Collapse
Affiliation(s)
- Kai-Liang Zhou
- a State Key Laboratory of Virology and Medical Research Institue, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan , People's Republic of China.,b The eighth hospital of Wuhan , Wuhan , People's Republic of China
| | - Xin Li
- a State Key Laboratory of Virology and Medical Research Institue, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan , People's Republic of China
| | - Xiao-Lian Zhang
- a State Key Laboratory of Virology and Medical Research Institue, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan , People's Republic of China
| | - Qin Pan
- a State Key Laboratory of Virology and Medical Research Institue, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan , People's Republic of China
| |
Collapse
|
10
|
Cai X, Ge N, Rong R, Lu Y, Zhang J, Xu J. High expression of BTLA and B7-H4 on the surface of myeloid dendritic cells has a negative regulatory effect on their anti-tuberculosis immunity activity in pleural tuberculosis patients. Tuberculosis (Edinb) 2019; 119:101877. [PMID: 31677529 DOI: 10.1016/j.tube.2019.101877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 09/19/2019] [Accepted: 10/09/2019] [Indexed: 10/25/2022]
Abstract
To investigate the effects of the surface markers B- and T-lymphocyte attenuator (BTLA) and B7 homologous body 4 (B7-H4) on expression of CD83, and Human Leukocyte Antigen-DR isotype (HLA-DR) that can activate dendritic cells (DCs). Flow cytometry was used to detect the co-expression of BTLA and B7-H4 on myeloid DCs (mDCs) in peripheral blood (PB) and pleural effusions (PE) in 15 volunteers and 20 tuberculous pleurisy (TP) patients. Co-expression of BTLA and B7-H4 (double positive (DP)) mDCs in PB and PE of TP patients were enhanced. The proportion of DP mDC in PB decreased markedly after 2 weeks treatment, but was still greater than in controls. Expression of CD83 and HLA-DR on DP mDCs was higher than on BTLA and B7-H4 double negative (DN) expressing mDCs in PB of different TP groups. Expression of CD83 on DP mDCs in PB and PE of TP patients was greater than that of controls. Expression of HLA-DR on DP mDCs in TP patient PB was lower than in TP PE and controls. In pleural tuberculosis (TB) patients, high expression of BTLA and B7-H4 promoted a high level of CD83 and HLA-DR, which had a negative regulatory effect on mDCs on anti-TB immunity.
Collapse
Affiliation(s)
- Xiaozhen Cai
- Department of Respiratory Medicine, Dongguan Houjie Hospital Affiliated to Guangdong Medical University, Dongguan, 523945, China.
| | - Nanhai Ge
- Department of Respiratory Medicine, Dongguan Houjie Hospital Affiliated to Guangdong Medical University, Dongguan, 523945, China
| | - Rong Rong
- Department of Respiratory Medicine, Dongguan Houjie Hospital Affiliated to Guangdong Medical University, Dongguan, 523945, China
| | - Yuanbin Lu
- Institute of Laboratory Medicine, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Junai Zhang
- Institute of Laboratory Medicine, Guangdong Medical University, Dongguan, 523808, Guangdong, China
| | - Junfa Xu
- Institute of Laboratory Medicine, Guangdong Medical University, Dongguan, 523808, Guangdong, China.
| |
Collapse
|
11
|
Ramos-Martinez AG, Valtierra-Alvarado MA, Garcia-Hernandez MH, Hernandez-Pando R, Castañeda-Delgado JE, Cougoule C, Rivas-Santiago B, Neyrolles O, Enciso-Moreno JA, Lugo-Villarino G, Serrano CJ. Variability in the virulence of specific Mycobacterium tuberculosis clinical isolates alters the capacity of human dendritic cells to signal for T cells. Mem Inst Oswaldo Cruz 2019; 114:e190102. [PMID: 31411311 PMCID: PMC6690647 DOI: 10.1590/0074-02760190102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 07/08/2019] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Once in the pulmonary alveoli, Mycobacterium tuberculosis
(Mtb) enters into contact with alveolar macrophages and dendritic cells
(DCs). DCs represent the link between the innate and adaptive immune system
owing to their capacity to be both a sentinel and an orchestrator of the
antigen-specific immune responses against Mtb. The effect that the virulence
of Mtb has on the interaction between the bacilli and human DCs has not been
fully explored. OBJECTIVE To evaluate the effect of Mtb virulence on human monocyte-derived DCs. METHODS We exposed human monocyte-derived DCs to Mtb clinical strains (isolated from
an epidemiological Mtb diversity study in Mexico) bearing different degrees
of virulence and evaluated the capacity of DCs to internalise the bacilli,
control intracellular growth, engage cell death pathways, express markers
for activation and antigen presentation, and expand to stimulate autologous
CD4+ T cells proliferation. FINDINGS In the case of the hypervirulent Mtb strain (Phenotype 1, strain 9005186,
lineage 3), we report that DCs internalise and neutralise intracellular
growth of the bacilli, undergo low rates of apoptosis, and contribute poorly
to T-cell expansion, as compared to the H37Rv reference strain. In the case
of the hypovirulent Mtb strain (Phenotype 4, strain 9985449, lineage 4),
although DCs internalise and preclude proliferation of the bacilli, the DCs
also display a high level of apoptosis, massive levels of apoptosis that
prevent them from maintaining autologous CD4+ T cells in a
co-culture system, as compared to H37Rv. MAIN CONCLUSIONS Our findings suggest that variability in virulence among Mtb clinical
strains affects the capacity of DCs to respond to pathogenic challenge and
mount an immune response against it, highlighting important parallels to
studies previously done in mouse models.
Collapse
Affiliation(s)
- Ana Gabriela Ramos-Martinez
- Instituto Mexicano del Seguro Social, Unidad de Investigación Biomédica Zacatecas, Zacatecas, México.,Universidad Autónoma de San Luis Potosí, Escuela de Medicina, Departamento de Inmunología, San Luis Potosí, México
| | - Monica Alejandra Valtierra-Alvarado
- Instituto Mexicano del Seguro Social, Unidad de Investigación Biomédica Zacatecas, Zacatecas, México.,Universidad Autónoma de San Luis Potosí, Escuela de Medicina, Departamento de Inmunología, San Luis Potosí, México
| | | | - Rogelio Hernandez-Pando
- Instituto Nacional de Ciencias Médicas y de la Nutrición Salvador Zubirán, Departamento de Patología, Sección de Patología Experimental, Ciudad de México, México
| | - Julio Enrique Castañeda-Delgado
- Catédras Consejo Nacional de Ciencia y Tecnología, en Instituto Mexicano del Seguro Social, Unidad de Investigación Biomédica Zacatecas, Zacatecas, México
| | - Céline Cougoule
- Université de Toulouse, Institut de Pharmacologie et de Biologie Structurale, Centre National de la Recherche Scientifique, Université Paul Sabatier, Toulouse, France
| | - Bruno Rivas-Santiago
- Instituto Mexicano del Seguro Social, Unidad de Investigación Biomédica Zacatecas, Zacatecas, México
| | - Olivier Neyrolles
- Université de Toulouse, Institut de Pharmacologie et de Biologie Structurale, Centre National de la Recherche Scientifique, Université Paul Sabatier, Toulouse, France
| | | | - Geanncarlo Lugo-Villarino
- Université de Toulouse, Institut de Pharmacologie et de Biologie Structurale, Centre National de la Recherche Scientifique, Université Paul Sabatier, Toulouse, France
| | - Carmen Judith Serrano
- Instituto Mexicano del Seguro Social, Unidad de Investigación Biomédica Zacatecas, Zacatecas, México
| |
Collapse
|
12
|
Magallanes-Puebla A, Espinosa-Cueto P, López-Marín LM, Mancilla R. Mycobacterial glycolipid Di-O-acyl trehalose promotes a tolerogenic profile in dendritic cells. PLoS One 2018; 13:e0207202. [PMID: 30532264 PMCID: PMC6287779 DOI: 10.1371/journal.pone.0207202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 10/26/2018] [Indexed: 12/29/2022] Open
Abstract
Due to prolonged coevolution with the human being, Mycobacterium tuberculosis has acquired a sophisticated capacity to evade host immunity and persist in a latent state in the infected individual. As part of this evolutive process, mycobacteria have developed a highly complex cell wall that acts as a protective barrier. Herein we studied the effects of Di-O-acyl trehalose, a cell-wall glycolipid of virulent mycobacteria on murine bone marrow-derived dendritic cells. We have demonstrated that Di-O-Acyl-trehalose promotes a tolerogenic phenotype in bone marrow-derived murine DCs activated with mycobacterial antigens and Toll-like receptor agonists. This phenotype included low expression of antigen presentation and costimulatory molecules and altered cytokine production with downregulation of IL-12 and upregulation of IL-10, an anti-inflammatory cytokine. Additional markers of tolerogenicity were the expression of Indoleamine 2,3-dioxygenase and CD25. Furthermore, Di-O-Acyl-Trehalose promoted the expansion of FoxP3+ regulatory T lymphocytes. A better understanding of mycobacterial cell-wall components involved in the evasion of immunity is a prerequisite to designing better strategies to fight tuberculosis.
Collapse
Affiliation(s)
- Alejandro Magallanes-Puebla
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México City, México
| | - Patricia Espinosa-Cueto
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México City, México
| | - Luz M. López-Marín
- Departamento de Ingeniería Molecular de Materiales¸ Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Querétaro, México
| | - Raul Mancilla
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México City, México
- * E-mail:
| |
Collapse
|
13
|
Druszczynska M, Wawrocki S, Szewczyk R, Rudnicka W. Mycobacteria-derived biomarkers for tuberculosis diagnosis. Indian J Med Res 2018; 146:700-707. [PMID: 29664027 PMCID: PMC5926340 DOI: 10.4103/ijmr.ijmr_1441_16] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Tuberculosis (TB) remains an escalating problem worldwide. The current diagnostic methods do not always guarantee reliable diagnosis. TB treatment is a time-consuming process that requires the use of several chemotherapeutics, to which mycobacteria are becoming increasingly resistant. This article focuses on the potential utility of biomarkers of mycobacterial origin with potential implications for TB diagnosis. Properly standardized indicators could become new diagnostic tools, improving and streamlining the identification of Mycobacterium tuberculosis infection and the implementation of appropriate therapy. These markers can also potentially provide a quick confirmation of effectiveness of new anti-mycobacterial drugs and TB vaccines, leading to a possible application in practice.
Collapse
Affiliation(s)
- Magdalena Druszczynska
- Department of Immunology & Infectious Biology, Faculty of Biology & Environmental Protection, Institute of Microbiology, Biotechnology & Immunology, University of Lodz, Lodz, Poland
| | - Sebastian Wawrocki
- Department of Immunology & Infectious Biology, Faculty of Biology & Environmental Protection, Institute of Microbiology, Biotechnology & Immunology, University of Lodz, Lodz, Poland
| | - Rafal Szewczyk
- Department of Industrial Microbiology & Biotechnology, Faculty of Biology & Environmental Protection, Institute of Microbiology, Biotechnology & Immunology, University of Lodz, Lodz, Poland
| | - Wieslawa Rudnicka
- Department of Immunology & Infectious Biology, Faculty of Biology & Environmental Protection, Institute of Microbiology, Biotechnology & Immunology, University of Lodz, Lodz, Poland
| |
Collapse
|
14
|
Tuberculin skin test reaction is related to memory, but not naive CD4 + T cell responses to mycobacterial stimuli in BCG-vaccinated young adults. Vaccine 2018; 36:4566-4577. [PMID: 29909133 DOI: 10.1016/j.vaccine.2018.05.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/11/2018] [Accepted: 05/13/2018] [Indexed: 12/31/2022]
Abstract
Bacillus Calmette-Guérin (BCG) is the only vaccine available against tuberculosis and the tuberculin skin test (TST) is the most widely used method to detect BCG take. However, subjects may remain TST-negative, even after several BCG administrations. To investigate some of the potential reasons underlying this inability of developing tuberculin sensitivity in response to BCG we compared the effect of different mycobacterial stimuli in the groups differently responding to tuberculin. TST was performed on 71 healthy adults aged 25-30 years, who had received BCG in their childhood, and considered TST-positive at ≥10 mm. Dendritic cells (DCs) were incubated with PPD, live BCG or rBCGhIL-18, producing human IL-18. The latter strain was used to investigate whether the production of IL-18 could overcome some of the immune read-out limitations in the TST-negative subjects. CD86, CD80, CD40, and DC-specific intracellular adhesion molecule-3 grabbing nonintegrin (DC-SIGN) expression was analysed by flow cytometry and IL-10, IL-23 and IP-10 secretion in culture supernatants by ELISA. In DCs-T cell co-cultures with naive and memory CD4+ T cells, the IFN-γ and IL-10 levels were determined by ELISA. We found no difference in IL-10 and IFN-γ production by naive T cells between the TST-negative and TST-positive subjects. However, IFN-γ was produced in significantly higher amounts by memory T cells incubated with PPD, BCG or rBCGhIL-18-pulsed DCs in TST-positive than in TST-negative subjects, whereas the numbers of the IFN-γ-producing T cells were similar in both groups. This difference may be partially due to a decreased CD40 and enhanced reduction in DC-SIGN expression by DCs of TST-negative versus TST-positive subjects. A strong effect of IL-18 expression by rBCGhIL-18 on IL-23 production by the DC was seen in both groups, which likely was the reason for the increased IFN-γ production by naïve T cells upon incubation with mycobacteria-pulsed DC, regardless of the TST status.
Collapse
|
15
|
El-Sahrigy SAF, Rahman AMOA, Samaha DY, Mohamed NA, Saber SM, Talkhan HA, Ismail GA, Ibraheem EM, Riad EM. The influence of interferon-β supplemented human dendritic cells on BCG immunogenicity. J Immunol Methods 2018. [PMID: 29522775 DOI: 10.1016/j.jim.2018.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Tuberculosis (TB) remains a huge worldwide burden, despite extensive vaccination coverage with the Bacillus Calmette-Guérin (BCG), the only vaccine available against this disease, indicating that BCG-driven immunity is inadequate to protect the human population against TB. This underscore the critical necessitate to develop an improved TB vaccine, based on a better understanding of host-pathogen interactions and immune responses during mycobacterial infection. AIM OF THE WORK To examine whether the exogenous addition of IFN-β could improve dendritic cell (DC) response to Mycobacterium bovis (M. bovis) and to evaluate the effect induced by the infection of human DCs with M. bovis (with and without IFN-β) and Mycobacterium tuberculosis (Mtb) on DC viability as well as to compare the ability of BCG and Mtb to provide DCs with a Th1-polarizing capacity through the assessment of the immunoregulatory cytokines interleukin (IL)-12, IL-10 and interferon-gamma (IFN-γ). METHODS Immature DCs (iDCs) were generated in vitro using peripheral blood monocytes separated by anti-CD14-conjugated microbeads in the presence of granulocyte-macrophage-colony-stimulating factor (GM-CSF) and IL-4, cultured cells were analyzed using flow cytometry, then we tested DC viability after inoculation with M. bovis (with and without IFN-β pretreatment) and Mtb using light microscopic examination and trypan blue exclusion method. Additionally, supernatants from infected-DCs cultures were analyzed for IFN-γ, IL-12 and IL-10 by ELISA. RESULTS The viability of BCG-infected DCs was significantly higher than that of Mtb-infected DCs (61.55% vs 52.10%). BCG-infected DC produced significantly more IL-12 (p = 0.02) and less IL-10 (p = 0.01) compared with Mtb-infected cells. IFN-β-pretreated BCG-infected DCs produced significantly larger amounts of IL-12 than did BCG-infected DCs (p = 0.03) and Mtb-infected cells (p < 0.001). CONCLUSION IFN-β improves DC functions following BCG infection, thus assuming that IFN-β could be used as a vaccine adjuvant.
Collapse
Affiliation(s)
- Sally A F El-Sahrigy
- Pediatrics Department, Medical Research Division, National Research Centre, Cairo, Egypt
| | - Azza M O Abdel Rahman
- Pediatrics Department, Medical Research Division, National Research Centre, Cairo, Egypt
| | - Dalia Y Samaha
- Clinical Pathology & Immunology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Nesrine A Mohamed
- Clinical Pathology & Immunology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
| | - Sally M Saber
- Clinical Pathology & Microbiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Hala A Talkhan
- Clinical Pathology & Immunology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ghada A Ismail
- Clinical Pathology & Microbiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | | | - Emad M Riad
- Animal Health Research Institute (AHRI), Dokki, Egypt
| |
Collapse
|
16
|
Roux AL, Viljoen A, Bah A, Simeone R, Bernut A, Laencina L, Deramaudt T, Rottman M, Gaillard JL, Majlessi L, Brosch R, Girard-Misguich F, Vergne I, de Chastellier C, Kremer L, Herrmann JL. The distinct fate of smooth and rough Mycobacterium abscessus variants inside macrophages. Open Biol 2017; 6:rsob.160185. [PMID: 27906132 PMCID: PMC5133439 DOI: 10.1098/rsob.160185] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 10/31/2016] [Indexed: 02/07/2023] Open
Abstract
Mycobacterium abscessus is a pathogenic, rapidly growing mycobacterium responsible for pulmonary and cutaneous infections in immunocompetent patients and in patients with Mendelian disorders, such as cystic fibrosis (CF). Mycobacterium abscessus is known to transition from a smooth (S) morphotype with cell surface-associated glycopeptidolipids (GPL) to a rough (R) morphotype lacking GPL. Herein, we show that M. abscessus S and R variants are able to grow inside macrophages and are present in morphologically distinct phagosomes. The S forms are found mostly as single bacteria within phagosomes characterized by a tightly apposed phagosomal membrane and the presence of an electron translucent zone (ETZ) surrounding the bacilli. By contrast, infection with the R form leads to phagosomes often containing more than two bacilli, surrounded by a loose phagosomal membrane and lacking the ETZ. In contrast to the R variant, the S variant is capable of restricting intraphagosomal acidification and induces less apoptosis and autophagy. Importantly, the membrane of phagosomes enclosing the S forms showed signs of alteration, such as breaks or partial degradation. Although not frequently encountered, these events suggest that the S form is capable of provoking phagosome-cytosol communication. In conclusion, M. abscessus S exhibits traits inside macrophages that are reminiscent of slow-growing mycobacterial species.
Collapse
Affiliation(s)
- Anne-Laure Roux
- UMR1173, Inserm and UFR Des Sciences de la Santé Simone Veil, Université de Versailles Saint Quentin, Montigny, France
| | - Albertus Viljoen
- Centre National de la Recherche Scientifique FRE 3689, Centre d'études d'agents Pathogènes et Biotechnologies pour la Santé, Université de Montpellier, 1919, Route de Mende, 34293, Montpellier, France.,Centre d'Immunologie de Marseille-Luminy, Aix-Marseille Université UM 2, Inserm, U1104, CNRS UMR7280, 13288, Marseille, France
| | - Aïcha Bah
- CNRS, Institut de Pharmacologie et de Biologie Structurale (IPBS), UMR 5089 CNRS/Université Paul Sabatier, 205 route de Narbonne, BP 64182, 31077 Toulouse Cedex 4, France
| | - Roxane Simeone
- Unité de Pathogénomique mycobactérienne, Institut Pasteur, 25 rue du Dr Roux, 75724 Paris Cedex 15, Paris, France
| | - Audrey Bernut
- Centre National de la Recherche Scientifique FRE 3689, Centre d'études d'agents Pathogènes et Biotechnologies pour la Santé, Université de Montpellier, 1919, Route de Mende, 34293, Montpellier, France
| | - Laura Laencina
- UMR1173, Inserm and UFR Des Sciences de la Santé Simone Veil, Université de Versailles Saint Quentin, Montigny, France
| | - Therese Deramaudt
- UMR1179, Inserm and UFR Des Sciences de la Santé Simone Veil, Université de Versailles Saint Quentin, Montigny, France
| | - Martin Rottman
- UMR1173, Inserm and UFR Des Sciences de la Santé Simone Veil, Université de Versailles Saint Quentin, Montigny, France
| | - Jean-Louis Gaillard
- UMR1173, Inserm and UFR Des Sciences de la Santé Simone Veil, Université de Versailles Saint Quentin, Montigny, France
| | - Laleh Majlessi
- Unité de Pathogénomique mycobactérienne, Institut Pasteur, 25 rue du Dr Roux, 75724 Paris Cedex 15, Paris, France
| | - Roland Brosch
- Unité de Pathogénomique mycobactérienne, Institut Pasteur, 25 rue du Dr Roux, 75724 Paris Cedex 15, Paris, France
| | - Fabienne Girard-Misguich
- UMR1173, Inserm and UFR Des Sciences de la Santé Simone Veil, Université de Versailles Saint Quentin, Montigny, France
| | - Isabelle Vergne
- CNRS, Institut de Pharmacologie et de Biologie Structurale (IPBS), UMR 5089 CNRS/Université Paul Sabatier, 205 route de Narbonne, BP 64182, 31077 Toulouse Cedex 4, France
| | - Chantal de Chastellier
- Centre d'Immunologie de Marseille-Luminy, Aix-Marseille Université UM 2, Inserm, U1104, CNRS UMR7280, 13288, Marseille, France
| | - Laurent Kremer
- Centre National de la Recherche Scientifique FRE 3689, Centre d'études d'agents Pathogènes et Biotechnologies pour la Santé, Université de Montpellier, 1919, Route de Mende, 34293, Montpellier, France .,INSERM, CPBS, 34293 Montpellier, France
| | - Jean-Louis Herrmann
- UMR1173, Inserm and UFR Des Sciences de la Santé Simone Veil, Université de Versailles Saint Quentin, Montigny, France
| |
Collapse
|
17
|
Lu YB, Xiao DQ, Liang KD, Zhang JA, Wang WD, Yu SY, Zheng BY, Gao YC, Dai YC, Jia Y, Chen C, Zhuang ZG, Wang X, Fu XX, Zhou Y, Zhong J, Chen ZW, Xu JF. Profiling dendritic cell subsets in the patients with active pulmonary tuberculosis. Mol Immunol 2017; 91:86-96. [PMID: 28889065 DOI: 10.1016/j.molimm.2017.08.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/30/2017] [Accepted: 08/14/2017] [Indexed: 02/07/2023]
Abstract
Dendritic cell (DC) plays an important role in the immune response against pulmonary tuberculosis. However, the phenotypic profile of DC subsets in peripheral blood in individuals with active pulmonary tuberculosis (APT) is still inconclusive. Here, we demonstrated that the absolute numbers of total DC (tDC), myeloid DC (mDC) and plasmacytoid DC (pDC) in individuals with APT were decreased compared to healthy controls (HCs). The decreased number of DCs, especially of pDC, seems to be a useful diagnostic marker of APT. Meanwhile, the number of DCs was associated with the prolonged/complicated TB, ATD treatment effect and lymphocyte immune reactions, as manifested that relapsed APT patients with a higher number of tDC and lower number of pDC compared to newly diagnosed patients. Interestingly, mDC from APT patients displayed high expressions of CD83 and CCR7, but pDC displayed low expressions of CD83 and CCR7. Moreover, DCs from APT patients expressed lower levels of HLA-DR and CD80, but expressed a higher level of CD86 than those from HCs. However, the antigen uptake capacity of DC subsets was not different between APT and HCs, despite the antigen uptake capacity of pDC was much lower than that of mDC in both APT patients and HCs. Our data represent a systematic profile of DC subsets in the blood of APT patients, and would represent a useful biomarker for APT.
Collapse
Affiliation(s)
- Yuan-Bin Lu
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Department of Laboratory Medicine, Dongguan 5th Hospital, Dongguan 523000, China
| | - De-Qian Xiao
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China
| | - Kui-Di Liang
- Department of Respiration, Dongguan 6th Hospital, Dongguan 523000, China
| | - Jun-Ai Zhang
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, No. 1 Xincheng Road, Dongguan 523808, China
| | - Wan-Dang Wang
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Department of Microbiology and Immunology, Center for Primate Biomedical Research, University of Illinois College of Medicine, Chicago, IL, USA
| | - Shi-Yan Yu
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, No. 1 Xincheng Road, Dongguan 523808, China
| | - Bi-Ying Zheng
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China
| | - Yu-Chi Gao
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, No. 1 Xincheng Road, Dongguan 523808, China
| | - You-Chao Dai
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, No. 1 Xincheng Road, Dongguan 523808, China
| | - Yan Jia
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, No. 1 Xincheng Road, Dongguan 523808, China
| | - Chen Chen
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, No. 1 Xincheng Road, Dongguan 523808, China
| | - Ze-Gang Zhuang
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, No. 1 Xincheng Road, Dongguan 523808, China
| | - Xin Wang
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, No. 1 Xincheng Road, Dongguan 523808, China
| | - Xiao-Xia Fu
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China
| | - Yong Zhou
- Department of Laboratory Medicine, Dongguan 5th Hospital, Dongguan 523000, China
| | - Jixin Zhong
- Cardiovascular Research Institute, Case Western Reserve University, 2103 Cornell Road, Cleveland, OH 44106, USA
| | - Zheng W Chen
- Department of Microbiology and Immunology, Center for Primate Biomedical Research, University of Illinois College of Medicine, Chicago, IL, USA
| | - Jun-Fa Xu
- Institute of Laboratory Medicine, Guangdong Medical University, No. 1 Xincheng Road, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, No. 1 Xincheng Road, Dongguan 523808, China.
| |
Collapse
|
18
|
Källenius G, Correia-Neves M, Buteme H, Hamasur B, Svenson SB. Lipoarabinomannan, and its related glycolipids, induce divergent and opposing immune responses to Mycobacterium tuberculosis depending on structural diversity and experimental variations. Tuberculosis (Edinb) 2015; 96:120-30. [PMID: 26586646 DOI: 10.1016/j.tube.2015.09.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 09/16/2015] [Indexed: 01/04/2023]
Abstract
Exposure to Mycobacterium tuberculosis (Mtb) may lead to active or latent tuberculosis, or clearance of Mtb, depending essentially on the quality of the host's immune response. This response is initiated through the interaction of Mtb cell wall surface components, mostly glycolipids, with cells of the innate immune system, particularly macrophages (Mφs) and dendritic cells (DCs). The way Mφs and DC alter their cytokine secretome, activate or inhibit different microbicidal mechanisms and present antigens and consequently trigger the T cell-mediated immune response impacts the host immune response against Mtb. Lipoarabinomannan (LAM) is one of the major cell wall components of Mtb. Mannosyl-capped LAM (ManLAM), and its related cell wall-associated types of glycolipids/lipoglycans, namely phosphatidylinositol mannosides (PIMs) and lipomannan (LM), exhibit important and distinct immunomodulatory properties. The structure, internal heterogeneity and abundance of these molecules vary between Mtb strains exhibiting distinct degrees of virulence. Thus ManLAM, LM and PIMs may be considered crucial Mtb-associated virulence factors in the pathogenesis of tuberculosis. Of particular relevance for this review, there is controversy about the specific immunomodulatory properties of these distinct glycolipids, particularly when tested as purified molecules in vitro. In addition to the variability in the glycolipid composition conflicting reports may also result from differences in the protocols used for glycolipid isolation and for in vitro experiments including immune cell types and procedures to generate them. Understanding the immunomodulatory properties of these cell wall glycolipids, how they differ between distinct Mtb strains, and how they influence the degree of Mtb virulence, is of utmost relevance to understand how the host mounts a protective or otherwise pathologic immune response. This is essential for the design of preventive strategies against tuberculosis. Thus, since clarifying the controversy on this matter is crucial we here review, summarize and discuss reported data from in vitro stimulation with the three major Mtb complex cell wall glycolipids (ManLAM, PIMs and LM) in an attempt to conciliate the conflicting findings.
Collapse
Affiliation(s)
- Gunilla Källenius
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, 118 83 Stockholm, Sweden.
| | - Margarida Correia-Neves
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, 118 83 Stockholm, Sweden; Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Helen Buteme
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, 118 83 Stockholm, Sweden; Department of Medical Microbiology, School of Biomedical Sciences, College of Health Sciences, Makerere University, P.O Box 7072, Kampala, Uganda
| | - Beston Hamasur
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, 118 83 Stockholm, Sweden
| | - Stefan B Svenson
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, 118 83 Stockholm, Sweden
| |
Collapse
|
19
|
Impairments of Antigen-Presenting Cells in Pulmonary Tuberculosis. J Immunol Res 2015; 2015:793292. [PMID: 26339660 PMCID: PMC4539175 DOI: 10.1155/2015/793292] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 12/16/2014] [Accepted: 12/16/2014] [Indexed: 11/18/2022] Open
Abstract
The phenotype and functional properties of antigen-presenting cells (APC), that is, circulating monocytes and generated in vitro macrophages and dendritic cells, were investigated in the patients with pulmonary tuberculosis (TB) differing in lymphocyte reactivity to M. tuberculosis antigens (PPD-reactive versus PPD-anergic patients). We revealed the distinct impairments in patient APC functions. For example, the monocyte dysfunctions were displayed by low CD86 and HLA-DR expression, 2-fold increase in CD14(+)CD16(+) expression, the high numbers of IL-10-producing cells, and enhanced IL-10 and IL-6 production upon LPS-stimulation. The macrophages which were in vitro generated from peripheral blood monocytes under GM-CSF were characterized by Th1/Th2-balance shifting (downproduction of IFN-γ coupled with upproduction of IL-10) and by reducing of allostimulatory activity in mixed lymphocyte culture. The dendritic cells (generated in vitro from peripheral blood monocytes upon GM-CSF + IFN-α) were characterized by impaired maturation/activation, a lower level of IFN-γ production in conjunction with an enhanced capacity to produce IL-10 and IL-6, and a profound reduction of allostimulatory activity. The APC dysfunctions were found to be most prominent in PPD-anergic patients. The possible role of APC impairments in reducing the antigen-specific T-cell response to M. tuberculosis was discussed.
Collapse
|
20
|
McGill JL, Sacco RE, Baldwin CL, Telfer JC, Palmer MV, Ray Waters W. The role of gamma delta T cells in immunity to Mycobacterium bovis infection in cattle. Vet Immunol Immunopathol 2014; 159:133-43. [DOI: 10.1016/j.vetimm.2014.02.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
21
|
Abstract
The immune response against Mycobacterium tuberculosis is multifactorial, involving a network of innate and adaptive immune responses. Characterization of the immune response, a clear understanding of the dynamics and interplay of different arms of the immune response are critical to allow the development of better tools for combating tuberculosis. Dendritic cells (DCs) are one of the key cells in bridging innate and adaptive immune response through their significant role in capturing, processing and presenting antigens. The outcome of interaction of M. tuberculosis with DCs is not fully understood and the available reports are contradictory were some findings reported that DCs strengthen the cellular immune response against mycobacterium infection whereas others reported M. tuberculosis impairs the function of DCs were infected DCs are poor stimulators of M. tuberculosis Ag-specific CD4 T cells. Other studies showed that the outcome depends on M. tuberculosis strain type and type of receptor on DCs during recognition. In this review I shall highlight the recent findings in the outcome of interaction of Mycobacterium tuberculosis with DCs.
Collapse
Affiliation(s)
- Adane Mihret
- Armauer Hansen Research Institute; Addis Ababa, Ethopia.
| |
Collapse
|
22
|
Divergent effects of mycobacterial cell wall glycolipids on maturation and function of human monocyte-derived dendritic cells. PLoS One 2012; 7:e42515. [PMID: 22880012 PMCID: PMC3411746 DOI: 10.1371/journal.pone.0042515] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 07/10/2012] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Mycobacterium tuberculosis (Mtb) is able to evade the immune defenses and may persist for years, decades and even lifelong in the infected host. Mtb cell wall components may contribute to such persistence by modulating several pivotal types of immune cells. Dendritic cells (DCs) are the most potent antigen-presenting cells and hence play a crucial role in the initial immune response to infections by connecting the innate with the adaptive immune system. PRINCIPAL FINDINGS We investigated the effects of two of the major mycobacterial cell wall-associated types of glycolipids, mannose-capped lipoarabinomannan (ManLAM) and phosphatidylinositol mannosides (PIMs) purified from the Mtb strains H37Rv and Mycobacterium bovis, on the maturation and cytokine profiles of immature human monocyte-derived DCs. ManLAM from Mtb H37Rv stimulated the release of pro-inflammatory cytokines TNF, IL-12, and IL-6 and expression of co-stimulatory (CD80, CD86) and antigen-presenting molecules (MHC class II). ManLAM from M. bovis also induced TNF, IL-12 and IL-6 but at significantly lower levels. Importantly, while ManLAM was found to augment LPS-induced DC maturation and pro-inflammatory cytokine production, addition of PIMs from both Mtb H37Rv and M. bovis strongly reduced this stimulatory effect. CONCLUSIONS These results indicate that the mycobacterial cell wall contains macromolecules of glycolipid nature which are able to induce strong and divergent effects on human DCs; i.e while ManLAM is immune-stimulatory, PIMs act as powerful inhibitors of DC cytokine responses. Thus PIMs may be important Mtb-associated virulence factors contributing to the pathogenesis of tuberculosis disease. These findings may also aid in the understanding of some earlier conflicting reports on the immunomodulatory effects exerted by different ManLAM preparations.
Collapse
|
23
|
González-Juarrero M, O'Sullivan MP. Optimization of inhaled therapies for tuberculosis: the role of macrophages and dendritic cells. Tuberculosis (Edinb) 2011; 91:86-92. [PMID: 20888298 DOI: 10.1016/j.tube.2010.08.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 08/16/2010] [Accepted: 08/29/2010] [Indexed: 01/06/2023]
Abstract
Inhaled therapies in the form of drugs or vaccines for tuberculosis treatment were reported about a decade ago. Experts around the world met to discuss the scientific progress in inhaled therapies at the international symposium "Optimization of inhaled Tuberculosis therapies and implications for host-pathogen interactions" held in New Delhi, India on November 3-5, 2009. The meeting was organized by the Central Drug Research Institute (CDRI) Lucknow, India. The lung is the main route for infection with Mycobacterium tuberculosis bacilli and the primary site of reactivation of latent disease. The only available vaccine BCG is relatively ineffective at preventing tuberculosis disease and current therapy requires prolonged treatment with drugs which results in low patient compliance. Consequently, there is a need to design new vaccines and therapies for this disease. Recently there has been increased interest in the development of inhaled formulations to deliver anti-mycobacterial drugs and vaccines directly to the lung and many of these therapies are designed to target lung macrophages and dendritic cells. However, the development of effective inhaled therapies requires an understanding of the unique function and immunosuppressive environment of the lung which is driven, in part, by alveolar macrophages and dendritic cells. In this review, we will discuss the role of alveolar macrophages and dendritic cells in the host immune response to M. tuberculosis infection and the ways in which inhaled therapies might enhance the anti-microbial response of phagocytes and boost pulmonary immunity.
Collapse
Affiliation(s)
- Mercedes González-Juarrero
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA.
| | | |
Collapse
|
24
|
Wu T, Guo S, Wang J, Li L, Xu L, Liu P, Ma S, Zhang J, Xu L, Luo Y. Interaction between mannosylated lipoarabinomannan and dendritic cell-specific intercellular adhesion molecule-3 grabbing nonintegrin influences dendritic cells maturation and T cell immunity. Cell Immunol 2011; 272:94-101. [PMID: 22014390 DOI: 10.1016/j.cellimm.2011.09.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 08/25/2011] [Accepted: 09/13/2011] [Indexed: 12/13/2022]
Abstract
The aim of the study was to investigate the interaction between manLAM and DC-SIGN influencing DCs maturation and downstream immune response using small interfering RNA-expressing lentiviral vectors to specifically knockdown DC-SIGN. Our data indicated that DC-SIGN knockdown alone in DCs did not affect the maturation or the immunological function of lipopolysacharide (LPS)-activated DCs. Surface molecules were dramatically down-regulated in DCs primed with manLAM but not in mock control DCs (P<0.05). Meanwhile, manLAM enhanced the production of the immunosuppressive cytokine IL-10 in DCs (P<0.05). The level of IFN-γ was significantly down-regulated in the supernatants of naive T cells after co-cultured with DCs primed with manLAM (P<0.05). We demonstrated that DCs primed with manLAM may partially impair maturation phenotypes and immune response in LPS-activated DCs. However, the alterations of DCs function and downstream immune response caused by manLAM were reversed by the knockdown of DC-SIGN.
Collapse
Affiliation(s)
- Tingting Wu
- Department of Respiratory Medicine, The First Affiliated Hospital, Chongqing Medical University, No. 1 You Yi Road, Chongqing, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Hajishengallis G, Lambris JD. Microbial manipulation of receptor crosstalk in innate immunity. Nat Rev Immunol 2011; 11:187-200. [PMID: 21350579 DOI: 10.1038/nri2918] [Citation(s) in RCA: 222] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the arms race of host-microbe co-evolution, successful microbial pathogens have evolved ingenious ways to evade host immune responses. In this Review, we focus on 'crosstalk manipulation' - the microbial strategies that instigate, subvert or disrupt the molecular signalling crosstalk between receptors of the innate immune system. This proactive interference undermines host defences and contributes to microbial adaptive fitness and persistent infections. Understanding how pathogens exploit host receptor crosstalk mechanisms and infiltrate the host signalling network is essential for developing interventions to redirect the host response and achieve protective immunity.
Collapse
Affiliation(s)
- George Hajishengallis
- University of Louisville, Department of Microbiology and Immunology, Louisville, Kentucky 40292, USA.
| | | |
Collapse
|
26
|
Lugo-Villarino G, Hudrisier D, Tanne A, Neyrolles O. C-type lectins with a sweet spot for Mycobacterium tuberculosis. Eur J Microbiol Immunol (Bp) 2011; 1:25-40. [PMID: 24466434 PMCID: PMC3894812 DOI: 10.1556/eujmi.1.2011.1.6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The pattern of receptors sensing pathogens onto host cells is a key factor that can determine the outcome of the infection. This is particularly true when such receptors belong to the family of pattern recognition receptors involved in immunity. Mycobacterium tuberculosis, the etiologic agent of tuberculosis interacts with a wide range of pattern-recognition receptors present on phagocytes and belonging to the Toll-like, Nod-like, scavenger and C-type lectin receptor families. A complex scenario where those receptors can establish cross-talks in recognizing pathogens or microbial determinants including mycobacterial components in different spatial and temporal context starts to emerge as a key event in the outcome of the immune response, and thus, the control of the infection. In this review, we will focus our attention on the family of calcium-dependent carbohydrate receptors, the C-type lectin receptors, that is of growing importance in the context of microbial infections. Members of this family appear to be key innate immune receptors of mycobacteria, capable of cross-talk with other pattern recognition receptors to induce or modulate the inflammatory context upon mycobacterial infection.
Collapse
|
27
|
γδ T cells cross-link innate and adaptive immunity in Mycobacterium tuberculosis infection. Clin Dev Immunol 2011; 2011:587315. [PMID: 21253470 PMCID: PMC3022180 DOI: 10.1155/2011/587315] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2010] [Revised: 11/27/2010] [Accepted: 12/09/2010] [Indexed: 11/17/2022]
Abstract
Protective immunity against mycobacterial infections such as Mycobacterium tuberculosis is mediated by interactions between specific T cells and activated antigen presenting cells. To date, many aspects of mycobacterial immunity have shown that innate cells could be the key elements that substantially may influence the subsequent adaptive host response. During the early phases of infection, innate lymphocyte subsets play a pivotal role in this context. Here we summarize the findings of recent investigations on γδ T lymphocytes and their role in tuberculosis immunity.
Collapse
|
28
|
Roux AL, Ray A, Pawlik A, Medjahed H, Etienne G, Rottman M, Catherinot E, Coppée JY, Chaoui K, Monsarrat B, Toubert A, Daffé M, Puzo G, Gaillard JL, Brosch R, Dulphy N, Nigou J, Herrmann JL. Overexpression of proinflammatory TLR-2-signalling lipoproteins in hypervirulent mycobacterial variants. Cell Microbiol 2011; 13:692-704. [PMID: 21143571 DOI: 10.1111/j.1462-5822.2010.01565.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Changes in the cell envelope composition of mycobacteria cause major changes in cytokine profiles of infected antigen presenting cells. We describe here the modulation of inflammatory responses by Mycobacterium abscessus, an emerging pathogen in cystic fibrosis. M. abscessus is able to switch from a smooth (S) to a rough (R) morphotype by the loss of a surface glycopeptidolipid. R variants are associated with severe clinical forms and a 'hyper-proinflammatory' response in ex vivo and in vivo models. Using partitioning of cell surface components we found that a complex fraction, more abundant in R variants than in S variants, made a major contribution to the TLR-2-dependent hyper-proinflammatory response induced by R variants. Lipoproteins were the main TLR-2 agonists in this fraction, consistent with the larger amounts of 16 lipoproteins in cell surface extracts from R variants; 15 out of 16 being more strongly induced in R variant than in S variant. Genetic interruption of glycopeptidolipid pathway in wild-type S variant resulted in R phenotype with similar induction of lipoprotein genes. In conclusion, R morphotype in M. abscessus is associated with increased synthesis/exposure at the cell surface of lipoproteins, these changes profoundly modifying the innate immune response through TLR-2-dependent mechanisms.
Collapse
Affiliation(s)
- Anne-Laure Roux
- EA 3647 Physiopathologie et diagnostic des infections microbiennes, Université Versailles St Quentin, and Laboratoire de Microbiologie, Hôpital Raymond Poincaré, AP-HP, Garches, France
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Meraviglia S, Caccamo N, Salerno A, Sireci G, Dieli F. Partial and ineffective activation of V gamma 9V delta 2 T cells by Mycobacterium tuberculosis-infected dendritic cells. THE JOURNAL OF IMMUNOLOGY 2010; 185:1770-6. [PMID: 20592281 DOI: 10.4049/jimmunol.1000966] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Gammadelta T cells and dendritic cells (DCs) participate in early phases of immune response against Mycobacterium tuberculosis. We investigated whether a close functional relationship exists between these two cell populations using an in vitro coculture in a human system. Vgamma9Vdelta2 T cells induce full maturation of M. tuberculosis-infected immature DCs, as demonstrated by upregulation of the costimulatory CD80, CD86, CD40, and HLA-DR molecules on infected DCs after 24 h of coculture. Reciprocally, infected DCs induced substantial activation of Vgamma9Vdelta2 T cells upon coculture, which was cell-to-cell contact and TCR dependent, as demonstrated in transwell experiments. However, infected DCs selectively induced proliferative, but not cytokine or cytolytic, responses of Vgamma9Vdelta2 T cells, and this was associated with the expansion of phenotypically immature, central memory-type Vgamma9Vdelta2 T cells. Importantly, expansion of central memory Vgamma9Vdelta2 T cells and reduction of the pool of Vgamma9Vdelta2 T cells with immediate effector functions (effector memory and terminally differentiated cells) were also detected in vivo in the peripheral blood of patients with active tuberculosis, which reversed after antimycobacterial therapy. M. tuberculosis-infected DCs produced many different cytokines, but not IL-15, and addition of IL-15 to cocultures of infected DCs and Vgamma9Vdelta2 T cells caused efficient differentiation of these latter with generation of effector memory and terminally differentiated cells, which were capable of reducing the viability of intracellular M. tuberculosis. Overall, this study provides a further piece of information on the complex relationship between important players of innate immunity during mycobacterial infection.
Collapse
Affiliation(s)
- Serena Meraviglia
- Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo, Italy
| | | | | | | | | |
Collapse
|
30
|
Guenin-Macé L, Siméone R, Demangel C. Lipids of Pathogenic Mycobacteria: Contributions to Virulence and Host Immune Suppression. Transbound Emerg Dis 2009; 56:255-68. [DOI: 10.1111/j.1865-1682.2009.01072.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
31
|
Sheng KC, Kalkanidis M, Pouniotis DS, Wright MD, Pietersz GA, Apostolopoulos V. The adjuvanticity of a mannosylated antigen reveals TLR4 functionality essential for subset specialization and functional maturation of mouse dendritic cells. THE JOURNAL OF IMMUNOLOGY 2008; 181:2455-64. [PMID: 18684936 DOI: 10.4049/jimmunol.181.4.2455] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The evidence that dendritic cell (DC) subsets produce differential cytokines in response to specific TLR stimulation is robust. However, the role of TLR stimulation in Ag presentation and phenotypic maturation among DC subsets is not clear. Through the adjuvanticity of a novel mannosylated Ag, mannosylated dendrimer OVA (MDO), as a pathogen-associated molecular pattern Ag, we characterized the functionality of GM-CSF/IL-4-cultured bone marrow DC and Flt3 ligand (Flt3-L) DC subsets by Ag presentation and maturation assays. It was demonstrated that both bone marrow DCs and Flt3-L DCs bound, processed, and presented MDO effectively. However, while Flt3-L CD24(high) (conventional CD8(+) equivalent) and CD11b(high) (CD8(-) equivalent) DCs were adept at MDO processing by MHC class I and II pathways, respectively, CD45RA(+) plasmacytoid DCs presented MDO poorly to T cells. Successful MDO presentation was largely dependent on competent TLR4 for Ag localization and morphological/phenotypic maturation of DC subsets, despite the indirect interaction of MDO with TLR4. Furthermore, Toll/IL-1 receptor-domain-containing adaptor-inducing IFN-beta, but not MyD88, as a TLR4 signaling modulator was indispensable for MDO-induced DC maturation and Ag presentation. Taken together, our findings suggest that DC subsets differentially respond to a pathogen-associated molecular pattern-associated Ag depending on the intrinsic programming and TLRs expressed. Optimal functionality of DC subsets in Ag presentation necessitates concomitant TLR signaling critical for efficient Ag localization and processing.
Collapse
Affiliation(s)
- Kuo-Ching Sheng
- Immunology and Vaccine Laboratory, Burnet Institute, Melbourne, Australia
| | | | | | | | | | | |
Collapse
|
32
|
Reske A, Pollara G, Krummenacher C, Katz DR, Chain BM. Glycoprotein-dependent and TLR2-independent innate immune recognition of herpes simplex virus-1 by dendritic cells. THE JOURNAL OF IMMUNOLOGY 2008; 180:7525-36. [PMID: 18490753 DOI: 10.4049/jimmunol.180.11.7525] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Innate immune recognition is an important early event in the host response to herpes simplex virus-1 (HSV-1) infection. Dendritic cells (DC) play an important sentinel role in this recognition. Previous studies have shown that monocyte-derived DC (MDDC) respond to HSV-1 by up-regulation of costimulatory molecules and type I IFN release, but the molecular targets on the virus recognized by the DC have not been defined. In this study we show that MDDC recognize and respond to the four essential viral glycoproteins, gB, gD, and gHgL, independent of other viral proteins or nucleic acids. DC recognition of these four glycoproteins leads to the up-regulation of CD40, CD83, CD86, and HLA-DR and to the production of IFN-alpha and IL-10, but not IL-12p70. Glutaraldehyde-fixation and nonfunctional gH mutants were used to show that recognition of glycoproteins does not require membrane fusion. The nature of the recognition event was probed further by transfecting glycoproteins individually or in combination, by blocking individual proteins with Abs, or by using mutant gD constructs unable to bind to their known cognate receptors. Unexpectedly, MDDC responses were found to require expression of all four glycoproteins. Furthermore, gD mutants that cannot bind nectin-1 and/or herpesvirus entry mediator can still induce DC maturation. Finally, although HSV-1 can signal via the TLR2 receptor, this receptor does not mediate recognition of glycoproteins. Thus, the complex of the four essential HSV-1 entry glycoproteins on the cell surface can provide a target for innate immune recognition of this virus.
Collapse
Affiliation(s)
- Adi Reske
- Department of Immunology and Molecular Pathology, University College London, Windeyer Institute of Medical Sciences, London, United Kingdom
| | | | | | | | | |
Collapse
|
33
|
Pitarque S, Larrouy-Maumus G, Payré B, Jackson M, Puzo G, Nigou J. The immunomodulatory lipoglycans, lipoarabinomannan and lipomannan, are exposed at the mycobacterial cell surface. Tuberculosis (Edinb) 2008; 88:560-5. [PMID: 18539533 DOI: 10.1016/j.tube.2008.04.002] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2007] [Revised: 04/11/2008] [Accepted: 04/12/2008] [Indexed: 01/29/2023]
Abstract
By labeling surface carbohydrates, we found that a pool of lipoglycans, cell wall associated, is exposed at the cell surface of mycobacteria and thus, most probably, inserted in the outer leaflet of the outer membrane. In contrast, plasma membrane anchored lipoglycans are not accessible to surface labeling. This result supports the role of lipoglycans as key immunomodulatory molecules but raises the question of their transport from the plasma membrane, where they are synthesized, to the outermost layers of the envelope, where they can act as modulins. The data are discussed in terms of consequences for cell envelope organization.
Collapse
Affiliation(s)
- Sylvain Pitarque
- Institut de Pharmacologie et de Biologie Structurale, CNRS UMR 5089, Département Mécanismes Moléculaires des Infections Mycobactériennes, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France
| | | | | | | | | | | |
Collapse
|
34
|
Rajashree P, Das SD. Infection with prevalent clinical strains of Mycobacterium tuberculosis leads to differential maturation of monocyte derived dendritic cells. Immunol Lett 2008; 117:174-80. [DOI: 10.1016/j.imlet.2008.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2007] [Revised: 01/22/2008] [Accepted: 01/27/2008] [Indexed: 10/22/2022]
|
35
|
Live Mycobacterium avium subsp. paratuberculosis and a killed-bacterium vaccine induce distinct subcutaneous granulomas, with unique cellular and cytokine profiles. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2008; 15:783-93. [PMID: 18337380 DOI: 10.1128/cvi.00480-07] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Type II (lepromatous) granulomas are characterized by a lack of organization, with large numbers of macrophages heavily burdened with bacilli and disorganized lymphocyte infiltrations. Type II granulomas are a characteristic feature of the enteric lesions that develop during clinical Mycobacterium avium subsp. paratuberculosis infection in the bovine. Considering the poor organization and function of these granulomas, it is our hypothesis that dendritic cell (DC) function within the granuloma is impaired during initial infection. In order to test our hypothesis, we used a subcutaneous M. avium subsp. paratuberculosis infection model to examine early DC function within M. avium subsp. paratuberculosis-induced granulomas. In this model, we first characterized the morphology, cellular composition, and cytokine profiles of subcutaneous granulomas that develop 7 days after subcutaneous inoculation with either vaccine or live M. avium subsp. paratuberculosis. Second, we isolated CD11c(+) cells from within granulomas and measured their maturation status and ability to induce T-cell responses. Our results demonstrate that M. avium subsp. paratuberculosis or vaccine administration resulted in the formation of distinct granulomas with unique cellular and cytokine profiles. These distinct profiles corresponded to significant differences in the phenotypes and functional responses of DCs from within the granulomas. Specifically, the DCs from the M. avium subsp. paratuberculosis-induced granulomas had lower levels of expression of costimulatory and chemokine receptors, suggesting limited maturation. This DC phenotype was associated with weaker induction of T-cell proliferation. Taken together, these findings suggest that M. avium subsp. paratuberculosis infection in vivo influences DC function, which may shape the developing granuloma and initial local protection.
Collapse
|