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Malik AA, Shariq M, Sheikh JA, Zarin S, Ahuja Y, Fayaz H, Alam A, Ehtesham NZ, Hasnain SE. Activation of the lysosomal damage response and selective autophagy: the coordinated actions of galectins, TRIM proteins, and CGAS-STING1 in providing immunity against Mycobacterium tuberculosis. Crit Rev Microbiol 2024:1-20. [PMID: 38470107 DOI: 10.1080/1040841x.2024.2321494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 02/14/2024] [Indexed: 03/13/2024]
Abstract
Autophagy is a crucial immune defense mechanism that controls the survival and pathogenesis of M. tb by maintaining cell physiology during stress and pathogen attack. The E3-Ub ligases (PRKN, SMURF1, and NEDD4) and autophagy receptors (SQSTM1, TAX1BP1, CALCOCO2, OPTN, and NBR1) play key roles in this process. Galectins (LGALSs), which bind to sugars and are involved in identifying damaged cell membranes caused by intracellular pathogens such as M. tb, are essential. These include LGALS3, LGALS8, and LGALS9, which respond to endomembrane damage and regulate endomembrane damage caused by toxic chemicals, protein aggregates, and intracellular pathogens, including M. tb. They also activate selective autophagy and de novo endolysosome biogenesis. LGALS3, LGALS9, and LGALS8 interact with various components to activate autophagy and repair damage, while CGAS-STING1 plays a critical role in providing immunity against M. tb by activating selective autophagy and producing type I IFNs with antimycobacterial functions. STING1 activates cGAMP-dependent autophagy which provides immunity against various pathogens. Additionally, cytoplasmic surveillance pathways activated by ds-DNA, such as inflammasomes mediated by NLRP3 and AIM2 complexes, control M. tb. Modulation of E3-Ub ligases with small regulatory molecules of LGALSs and TRIM proteins could be a novel host-based therapeutic approach for controlling TB.
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Affiliation(s)
- Asrar Ahmad Malik
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Mohd Shariq
- ICMR-National Institute of Pathology, New Delhi, India
| | - Javaid Ahmad Sheikh
- Department of Biotechnology, School of Chemical and Life Sciences, New Delhi, India
| | - Sheeba Zarin
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, Uttar Pradesh, India
- Department of Molecular Medicine, School of Interdisciplinary Sciences and Technology, New Delhi, India
| | - Yashika Ahuja
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Haleema Fayaz
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Anwar Alam
- Department of Biotechnology, School of Science and Engineering Technology, Sharda University, Greater Noida, India
| | - Nasreen Z Ehtesham
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Seyed E Hasnain
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, Greater Noida, Uttar Pradesh, India
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, New Delhi, India
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Abstract
Mycobacterium tuberculosis (Mtb) is the causative agent of tuberculosis, an infectious disease with one of the highest morbidity and mortality rates worldwide. Leveraging its highly evolved repertoire of non-protein and protein virulence factors, Mtb invades through the airway, subverts host immunity, establishes its survival niche, and ultimately escapes in the setting of active disease to initiate another round of infection in a naive host. In this review, we will provide a concise synopsis of the infectious life cycle of Mtb and its clinical and epidemiologic significance. We will also take stock of its virulence factors and pathogenic mechanisms that modulate host immunity and facilitate its spread. Developing a greater understanding of the interface between Mtb virulence factors and host defences will enable progress toward improved vaccines and therapeutics to prevent and treat tuberculosis.
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Affiliation(s)
- Kathryn C. Rahlwes
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Beatriz R.S. Dias
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Priscila C. Campos
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Samuel Alvarez-Arguedas
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Michael U. Shiloh
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA,Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX, USA,CONTACT Michael U. Shiloh
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Solomon SL, Bryson BD. Single-cell analysis reveals a weak macrophage subpopulation response to Mycobacterium tuberculosis infection. Cell Rep 2023; 42:113418. [PMID: 37963018 PMCID: PMC10842899 DOI: 10.1016/j.celrep.2023.113418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/28/2023] [Accepted: 10/25/2023] [Indexed: 11/16/2023] Open
Abstract
Mycobacterium tuberculosis (Mtb) infection remains one of society's greatest human health challenges. Macrophages integrate multiple signals derived from ontogeny, infection, and the environment. This integration proceeds heterogeneously during infection. Some macrophages are infected, while others are not; therefore, bulk approaches mask the subpopulation dynamics. We establish a modular, targeted, single-cell protein analysis framework to study the immune response to Mtb. We demonstrate that during Mtb infection, only a small fraction of resting macrophages produce tumor necrosis factor (TNF) protein. We demonstrate that Mtb infection results in muted phosphorylation of p38 and JNK, regulators of inflammation, and leverage our single-cell methods to distinguish between pathogen-mediated interference in host signaling and weak activation of host pathways. We demonstrate that the inflammatory signal magnitude is decoupled from the ability to control Mtb growth. These data underscore the importance of developing pathogen-specific models of signaling and highlight barriers to activation of pathways that control inflammation.
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Affiliation(s)
- Sydney L Solomon
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; The Ragon Institute of MGH, Harvard & MIT, Cambridge, MA 02139, USA
| | - Bryan D Bryson
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; The Ragon Institute of MGH, Harvard & MIT, Cambridge, MA 02139, USA.
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Jani C, Marsh A, Uchil P, Jain N, Baskir ZR, Glover OT, Root DE, Doench JG, Barczak AK. Vps18 contributes to phagosome membrane integrity in Mycobacterium tuberculosis-infected macrophages. bioRxiv 2023:2023.10.01.560397. [PMID: 37873319 PMCID: PMC10592876 DOI: 10.1101/2023.10.01.560397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Mycobacterium tuberculosis (Mtb) has evolved to be exquisitely adapted to survive within host macrophages. The capacity to damage the phagosomal membrane has emerged as central to Mtb virulence. While Mtb factors driving membrane damage have been described, host factors that repair that damage to contain the pathogen remain largely unknown. We used a genome-wide CRISPR screen to identify novel host factors required to repair Mtb-damaged phagosomal membranes. Vacuolar protein sorting-associated protein 18 (Vps18), a member of the HOPS and CORVET trafficking complexes, was among the top hits. Vps18 colocalized with Mtb in macrophages beginning shortly after infection, and Vps18-knockout macrophages demonstrated increased damage of Mtb-containing phagosomes without impaired autophagy. Mtb grew more robustly in Vps18-knockout cells, and the first-line anti-tuberculosis antibiotic pyrazinamide was less effective. Our results identify Vps18 as required for phagosomal membrane integrity in Mtb-infected cells and suggest that modulating phagosome integrity may hold promise for improving the efficacy of antibiotic treatment for TB.
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Affiliation(s)
| | | | - Pooja Uchil
- The Ragon Institute of MGH, MIT and Harvard
- Institute of Clinical and Molecular Virology, Friedrich-Alexander Universität Erlangen-Nürnberg
| | - Neha Jain
- The Ragon Institute of MGH, MIT and Harvard
| | | | | | | | | | - Amy K Barczak
- The Ragon Institute of MGH, MIT and Harvard
- The Broad Institute
- Division of Infectious Diseases, Massachusetts General Hospital
- Department of Medicine, Harvard Medical School
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Jani C, Solomon SL, Peters JM, Pringle SC, Hinman AE, Boucau J, Bryson BD, Barczak AK. TLR2 is non-redundant in the population and subpopulation responses to Mycobacterium tuberculosis in macrophages and in vivo. mSystems 2023; 8:e0005223. [PMID: 37439558 PMCID: PMC10506474 DOI: 10.1128/msystems.00052-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 06/02/2023] [Indexed: 07/14/2023] Open
Abstract
Tuberculosis (TB), caused by the pathogenic bacterium Mycobacterium tuberculosis (Mtb), is a global health threat. Targeting host pathways that modulate protective or harmful components of inflammation has been proposed as a therapeutic strategy that could aid sterilization or mitigate TB-associated permanent tissue damage. In purified form, many Mtb components can activate innate immune pathways. However, knowledge of the pathways that contribute most to the observed response to live Mtb is incomplete, limiting the possibility of precise intervention. We took a systematic, unbiased approach to define the pathways that drive the earliest immune response to Mtb. Using a macrophage model of infection, we compared the bulk transcriptional response to infection with the response to a panel of Mtb-derived putative innate immune ligands. We identified two axes of response: an NF-kB-dependent response similarly elicited by all Mtb pathogen-associated molecular patterns (PAMPs) and a type I interferon axis unique to cells infected with live Mtb. Consistent with growing literature data pointing to TLR2 as a dominant Mtb-associated PAMP, the TLR2 ligand PIM6 most closely approximated the NF-kB-dependent response to the intact bacterium. Quantitatively, the macrophage response to Mtb was slower and weaker than the response to purified PIM6. On a subpopulation level, the TLR2-dependent response was heterogeneously induced, with only a subset of infected cells expressing key inflammatory genes known to contribute to the control of infection. Despite potential redundancies in Mtb ligand/innate immune receptor interactions during in vivo infection, loss of the TLR2/PIM6 interaction impacted the cellular composition of both the innate and adaptive compartments. IMPORTANCE Tuberculosis (TB) is a leading cause of death globally. Drug resistance is outpacing new antibiotic discovery, and even after successful treatment, individuals are often left with permanent lung damage from the negative consequences of inflammation. Targeting host inflammatory pathways has been proposed as an approach that could either improve sterilization or improve post-treatment lung health. However, our understanding of the inflammatory pathways triggered by Mycobacterium tuberculosis (Mtb) in infected cells and lungs is incomplete, in part because of the complex array of potential molecular interactions between bacterium and host. Here, we take an unbiased approach to identify the pathways most central to the host response to Mtb. We examine how individual pathways are triggered differently by purified Mtb products or infection with the live bacterium and consider how these pathways inform the emergence of subpopulation responses in cell culture and in infected mice. Understanding how individual interactions and immune pathways contribute to inflammation in TB opens the door to the possibility of developing precise therapeutic interventions.
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Affiliation(s)
- Charul Jani
- The Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
| | - Sydney L. Solomon
- The Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Joshua M. Peters
- The Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | | | - Amelia E. Hinman
- The Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
| | - Julie Boucau
- The Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
| | - Bryan D. Bryson
- The Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Amy K. Barczak
- The Ragon Institute of MGH, MIT, and Harvard, Cambridge, Massachusetts, USA
- The Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
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Mittal E, Roth AT, Seth A, Singamaneni S, Beatty W, Philips JA. Single cell preparations of Mycobacterium tuberculosis damage the mycobacterial envelope and disrupt macrophage interactions. eLife 2023; 12:e85416. [PMID: 36852737 PMCID: PMC9998084 DOI: 10.7554/elife.85416] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/11/2023] [Indexed: 03/01/2023] Open
Abstract
For decades, investigators have studied the interaction of Mycobacterium tuberculosis (Mtb) with macrophages, which serve as a major cellular niche for the bacilli. Because Mtb are prone to aggregation, investigators rely on varied methods to disaggregate the bacteria for these studies. Here, we examined the impact of routinely used preparation methods on bacterial cell envelope integrity, macrophage inflammatory responses, and intracellular Mtb survival. We found that both gentle sonication and filtering damaged the mycobacterial cell envelope and markedly impacted the outcome of infections in mouse bone marrow-derived macrophages. Unexpectedly, sonicated bacilli were hyperinflammatory, eliciting dramatically higher TLR2-dependent gene expression and elevated secretion of IL-1β and TNF-α. Despite evoking enhanced inflammatory responses, sonicated bacilli replicated normally in macrophages. In contrast, Mtb that had been passed through a filter induced little inflammatory response, and they were attenuated in macrophages. Previous work suggests that the mycobacterial cell envelope lipid, phthiocerol dimycocerosate (PDIM), dampens macrophage inflammatory responses to Mtb. However, we found that the impact of PDIM depended on the method used to prepare Mtb. In conclusion, widely used methodologies to disaggregate Mtb may introduce experimental artifacts in Mtb-host interaction studies, including alteration of host inflammatory signaling, intracellular bacterial survival, and interpretation of bacterial mutants.
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Affiliation(s)
- Ekansh Mittal
- Division of Infectious Diseases, Department of Medicine, Washington University School of MedicineSt LouisUnited States
- Department of Molecular Microbiology, Washington University School of MedicineSt LouisUnited States
| | - Andrew T Roth
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of MedicineSt LouisUnited States
| | - Anushree Seth
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. LouisSt LouisUnited States
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. LouisSt LouisUnited States
- Siteman Cancer Center, Washington UniversitySt. LouisUnited States
| | - Wandy Beatty
- Department of Molecular Microbiology, Washington University School of MedicineSt LouisUnited States
| | - Jennifer A Philips
- Division of Infectious Diseases, Department of Medicine, Washington University School of MedicineSt LouisUnited States
- Department of Molecular Microbiology, Washington University School of MedicineSt LouisUnited States
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7
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Simper JD, Perez E, Schlesinger LS, Azad AK. Resistance and Susceptibility Immune Factors at Play during Mycobacterium tuberculosis Infection of Macrophages. Pathogens 2022; 11:pathogens11101153. [PMID: 36297211 PMCID: PMC9611686 DOI: 10.3390/pathogens11101153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/27/2022] [Accepted: 10/01/2022] [Indexed: 11/28/2022] Open
Abstract
Tuberculosis (TB), caused by infection with Mycobacterium tuberculosis (M.tb), is responsible for >1.5 million deaths worldwide annually. Innate immune cells, especially macrophages, are the first to encounter M.tb, and their response dictates the course of infection. During infection, macrophages exert a variety of immune factors involved in either controlling or promoting the growth of M.tb. Research on this topic has been performed in both in vitro and in vivo animal models with discrepant results in some cases based on the model of study. Herein, we review macrophage resistance and susceptibility immune factors, focusing primarily on recent advances in the field. We include macrophage cellular pathways, bioeffector proteins and molecules, cytokines and chemokines, associated microbiological factors and bacterial strains, and host genetic factors in innate immune genes. Recent advances in mechanisms underlying macrophage resistance and susceptibility factors will aid in the successful development of host-directed therapeutics, a topic emphasized throughout this review.
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Affiliation(s)
- Jan D. Simper
- Host-Pathogen Interaction Program, Texas Biomedical Research Institute, 8715 W. Military Drive, San Antonio, TX 78227, USA
- Department of Microbiology, Immunology and Molecular Genetics, UT Health Science Center San Antonio, San Antonio, TX 78229, USA
| | - Esteban Perez
- Host-Pathogen Interaction Program, Texas Biomedical Research Institute, 8715 W. Military Drive, San Antonio, TX 78227, USA
- Translational Sciences Program, UT Health San Antonio Graduate School of Biomedical Sciences, San Antonio, TX 78229, USA
| | - Larry S. Schlesinger
- Host-Pathogen Interaction Program, Texas Biomedical Research Institute, 8715 W. Military Drive, San Antonio, TX 78227, USA
- Correspondence: (L.S.S.); (A.K.A.); Tel.: +1-210-258-9578 (L.S.S.); +1-210-258-9467 (A.K.A.)
| | - Abul K. Azad
- Host-Pathogen Interaction Program, Texas Biomedical Research Institute, 8715 W. Military Drive, San Antonio, TX 78227, USA
- Correspondence: (L.S.S.); (A.K.A.); Tel.: +1-210-258-9578 (L.S.S.); +1-210-258-9467 (A.K.A.)
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8
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Bomfim CCB, Fisher L, Amaral EP, Mittereder L, McCann K, Correa AAS, Namasivayam S, Swamydas M, Moayeri M, Weiss JM, Chari R, McVicar DW, Costa DL, D’Império Lima MR, Sher A. Mycobacterium tuberculosis Induces Irg1 in Murine Macrophages by a Pathway Involving Both TLR-2 and STING/IFNAR Signaling and Requiring Bacterial Phagocytosis. Front Cell Infect Microbiol 2022; 12:862582. [PMID: 35586249 PMCID: PMC9109611 DOI: 10.3389/fcimb.2022.862582] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/01/2022] [Indexed: 11/13/2022] Open
Abstract
Irg1 is an enzyme that generates itaconate, a metabolite that plays a key role in the regulation of inflammatory responses. Previous studies have implicated Irg1 as an important mediator in preventing excessive inflammation and tissue damage in Mycobacterium tuberculosis (Mtb) infection. Here, we investigated the pattern recognition receptors and signaling pathways by which Mtb triggers Irg1 gene expression by comparing the responses of control and genetically deficient BMDMs. Using this approach, we demonstrated partial roles for TLR-2 (but not TLR-4 or -9), MyD88 and NFκB signaling in Irg1 induction by Mtb bacilli. In addition, drug inhibition studies revealed major requirements for phagocytosis and endosomal acidification in Irg1 expression triggered by Mtb but not LPS or PAM3CSK4. Importantly, the Mtb-induced Irg1 response was highly dependent on the presence of the bacterial ESX-1 secretion system, as well as host STING and Type I IFN receptor (IFNAR) signaling with Type II IFN (IFN-γ) signaling playing only a minimal role. Based on these findings we hypothesize that Mtb induces Irg1 expression in macrophages via the combination of two independent triggers both dependent on bacterial phagocytosis: 1) a major signal stimulated by phagocytized Mtb products released by an ESX-1-dependent mechanism into the cytosol where they activate the STING pathway leading to Type I-IFN production, and 2) a secondary TLR-2, MyD88 and NFκB dependent signal that enhances Irg1 production independently of Type I IFN induction.
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Affiliation(s)
- Caio C. B. Bomfim
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- Laboratory of Parasitic Diseases - National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Logan Fisher
- Laboratory of Parasitic Diseases - National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Eduardo P. Amaral
- Laboratory of Parasitic Diseases - National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Lara Mittereder
- Laboratory of Parasitic Diseases - National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Katelyn McCann
- Laboratory of Clinical Immunology and Microbiology - National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - André A. S. Correa
- Department of Biochemistry and Immunology - Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
- Graduate Program in Basic and Applied Immunology - Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Sivaranjani Namasivayam
- Laboratory of Parasitic Diseases - National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Muthulekha Swamydas
- Laboratory of Clinical Immunology and Microbiology - National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Mahtab Moayeri
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Jonathan M. Weiss
- Laboratory of Cancer Immunometabolism, Center for Cancer Research, National Cancer Institute, Frederick, MD, United States
| | - Raj Chari
- Laboratory Animal Sciences Program, Frederick National Laboratory for Cancer Research, Frederick, MD, United States
| | - Daniel W. McVicar
- Laboratory of Cancer Immunometabolism, Center for Cancer Research, National Cancer Institute, Frederick, MD, United States
| | - Diego L. Costa
- Department of Biochemistry and Immunology - Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
- Graduate Program in Basic and Applied Immunology - Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Maria R. D’Império Lima
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Alan Sher
- Laboratory of Parasitic Diseases - National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
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