1
|
Silva NI, Souza PFL, Silva BF, Fonseca SG, Gardinassi LG. Host Transcriptional Meta-signatures Reveal Diagnostic Biomarkers for Plasmodium falciparum Malaria. J Infect Dis 2024; 230:e474-e485. [PMID: 38271704 PMCID: PMC11326815 DOI: 10.1093/infdis/jiae041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/28/2023] [Accepted: 01/24/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Transcriptomics has been used to evaluate immune responses during malaria in diverse cohorts worldwide. However, the high heterogeneity of cohorts and poor generalization of transcriptional signatures reported in each study limit their potential clinical applications. METHODS We compiled 28 public data sets containing 1556 whole-blood or peripheral blood mononuclear cell transcriptome samples. We estimated effect sizes with Hedge's g value and the DerSimonian-Laird random-effects model for meta-analyses of uncomplicated malaria. Random forest models identified gene signatures that discriminate malaria from bacterial infections or malaria severity. Parasitological, hematological, immunological, and metabolomics data were used for validation. RESULTS We identified 3 gene signatures: the uncomplicated Malaria Meta-Signature, which discriminates Plasmodium falciparum malaria from uninfected controls; the Malaria or Bacteria Signature, which distinguishes malaria from sepsis and enteric fever; and the cerebral Malaria Meta-Signature, which characterizes individuals with cerebral malaria. These signatures correlate with clinical hallmark features of malaria. Blood transcription modules indicate immune regulation by glucocorticoids, whereas cell development and adhesion are associated with cerebral malaria. CONCLUSIONS Transcriptional meta-signatures reflecting immune cell responses provide potential biomarkers for translational innovation and suggest critical roles for metabolic regulators of inflammation during malaria.
Collapse
Affiliation(s)
- Nágila Isleide Silva
- Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
| | - Pedro Felipe Loyola Souza
- Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
| | - Bárbara Fernandes Silva
- Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
| | - Simone Gonçalves Fonseca
- Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
| | - Luiz Gustavo Gardinassi
- Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
- Departamento de Enfermagem Materno-Infantil e Saúde Pública, Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| |
Collapse
|
2
|
Prah DA, Laryea-Akrong E. Asymptomatic Low-Density Plasmodium falciparum Infections: Parasites Under the Host's Immune Radar? J Infect Dis 2024; 229:1913-1918. [PMID: 38349649 PMCID: PMC11175676 DOI: 10.1093/infdis/jiad581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/18/2023] [Indexed: 06/15/2024] Open
Abstract
A large body of evidence suggests that low parasite carriage in Plasmodium falciparum asymptomatic infection is required for the maintenance of malaria immunity. However, the fact that treating such infections has little to no impact on subsequent clinical malaria is rarely noted. In this paper, we review data and argue that low-density parasite carriage in asymptomatic infection may not support host immune processes and that parasites are virtually under the host's immunological radar. We also discuss factors that may be constraining parasitemia in asymptomatic infections from reaching the threshold required to cause clinical symptoms. A thorough understanding of this infectious reservoir is essential for malaria control and eradication because asymptomatic infections contribute significantly to Plasmodium transmission.
Collapse
Affiliation(s)
- Diana Ahu Prah
- West African Centre for Cell Biology of Infectious Pathogens, University of Ghana, Legon, Ghana
- Faculty of Applied Sciences, Department of Science Laboratory Technology, Accra Technical University, Accra, Ghana
| | - Elizabeth Laryea-Akrong
- West African Centre for Cell Biology of Infectious Pathogens, University of Ghana, Legon, Ghana
- Department of Biochemistry, Cell and Molecular Biology, College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| |
Collapse
|
3
|
Chung MKY, Gong L, Kwong DL, Lee VH, Lee AW, Guan X, Kam N, Dai W. Functions of double-negative B cells in autoimmune diseases, infections, and cancers. EMBO Mol Med 2023; 15:e17341. [PMID: 37272217 PMCID: PMC10493577 DOI: 10.15252/emmm.202217341] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 06/06/2023] Open
Abstract
Most mature B cells can be divided into four subtypes based on the expression of the surface markers IgD and CD27: IgD+ CD27- naïve B cells, IgD+ CD27+ unswitched memory B cells, IgD- CD27+ switched memory B cells, and IgD- CD27- double-negative (DN) B cells. Despite their small population size in normal peripheral blood, DN B cells play integral roles in various diseases. For example, they generate autoimmunity in autoimmune conditions, while these cells may generate both autoimmune and antipathogenic responses in COVID-19, or act in a purely antipathogenic capacity in malaria. Recently, DN B cells have been identified in nasopharyngeal carcinoma and non-small-cell lung cancers, where they may play an immunosuppressive role. The distinct functions that DN B cells play in different diseases suggest that they are a heterogeneous B-cell population. Therefore, further study of the mechanisms underlying the involvement of DN B cells in these diseases is essential for understanding their pathogenesis and the development of therapeutic strategies. Further research is thus warranted to characterize the DN B-cell population in detail.
Collapse
Affiliation(s)
- Michael King Yung Chung
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
| | - Lanqi Gong
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Dora Lai‐Wan Kwong
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Victor Ho‐Fun Lee
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Ann Wing‐Mui Lee
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Xin‐Yuan Guan
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| | - Ngar‐Woon Kam
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Laboratory for Synthetic Chemistry and Chemical BiologyHong Kong (SAR)China
| | - Wei Dai
- Department of Clinical Oncology, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Department of Clinical Oncology, Shenzhen Key Laboratory for Cancer Metastasis and Personalized TherapyThe University of Hong Kong‐Shenzhen HospitalShenzhenChina
| |
Collapse
|
4
|
Soe PP, Coutelier JP. Enhanced Mouse Susceptibility to Endotoxin Shock after Plasmodium yoelii Infection Is Correlated with Increased Serum Levels of Lipopolysaccharide Soluble Receptors. Int J Mol Sci 2023; 24:ijms24108851. [PMID: 37240201 DOI: 10.3390/ijms24108851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/29/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Sepsis is a common disease in sub-Saharan Africa and Asia, where malaria is also prevalent. To determine whether Plasmodium infection might enhance susceptibility to endotoxin shock, we used a mouse model of lipopolysaccharide (LPS) administration. Our results indicated that Plasmodium yoelii infection in mice strongly enhanced the susceptibility of the host to develop endotoxin shock. This increased susceptibility to endotoxin shock was correlated with a synergistic effect of Plasmodium and LPS on the secretion of Tumor Necrosis Factor (TNF). TNF contributed mostly to lethality after the dual challenge since neutralization with an anti-TNF antibody provided protection from death. Plasmodium infection also induced an enhancement of the serum levels of LPS soluble ligands, sCD14 and Lipopolysaccharide Binding Protein. In this regard, our data confirm that Plasmodium infection can profoundly modify responses to secondary bacteria challenges, resulting in dysregulated cytokine expression and pathological effects. If confirmed in humans, LPS soluble receptors might serve as markers of susceptibility to septic shock.
Collapse
Affiliation(s)
- Pyone Pyone Soe
- Unit of Experimental Medicine, de Duve Institute, Université Catholique de Louvain, 1200 Brussels, Belgium
- Department of Pathology, University of Medicine 1, Yangon 11131, Myanmar
| | - Jean-Paul Coutelier
- Unit of Experimental Medicine, de Duve Institute, Université Catholique de Louvain, 1200 Brussels, Belgium
| |
Collapse
|
5
|
Hirako IC, Antunes MM, Rezende RM, Hojo-Souza NS, Figueiredo MM, Dias T, Nakaya H, Menezes GB, Gazzinelli RT. Uptake of Plasmodium chabaudi hemozoin drives Kupffer cell death and fuels superinfections. Sci Rep 2022; 12:19805. [PMID: 36396745 PMCID: PMC9671901 DOI: 10.1038/s41598-022-23858-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 11/07/2022] [Indexed: 11/18/2022] Open
Abstract
Kupffer cells (KCs) are self-maintained tissue-resident macrophages that line liver sinusoids and play an important role on host defense. It has been demonstrated that upon infection or intense liver inflammation, KCs might be severely depleted and replaced by immature monocytic cells; however, the mechanisms of cell death and the alterations on liver immunity against infections deserves further investigation. We explored the impact of acute Plasmodium infection on KC biology and on the hepatic immune response against secondary infections. Similar to patients, infection with Plasmodium chabaudi induced acute liver damage as determined by serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) elevation. This was associated with accumulation of hemozoin, increased of proinflammatory response and impaired bacterial and viral clearance, which led to pathogen spread to other organs. In line with this, mice infected with Plasmodium had enhanced mortality during secondary infections, which was associated with increased production of mitochondrial superoxide, lipid peroxidation and increased free iron within KCs-hallmarks of cell death by ferroptosis. Therefore, we revealed that accumulation of iron with KCs, triggered by uptake of circulating hemozoin, is a novel mechanism of macrophage depletion and liver inflammation during malaria, providing novel insights on host susceptibility to secondary infections. Malaria can cause severe liver damage, along with depletion of liver macrophages, which can predispose individuals to secondary infections and enhance the chances of death.
Collapse
Affiliation(s)
- Isabella C Hirako
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, 364 Plantation Street, Lazare Research Building, 3rd Floor, Worcester, MA, USA
| | - Maísa Mota Antunes
- Center for Gastrointestinal Biology, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rafael Machado Rezende
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | | | - Thomaz Dias
- Escola de Ciências Farmacêuticas - Universidade de São Paulo, São Paulo, SP, Brazil
| | - Helder Nakaya
- Escola de Ciências Farmacêuticas - Universidade de São Paulo, São Paulo, SP, Brazil
| | - Gustavo Batista Menezes
- Center for Gastrointestinal Biology, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ricardo Tostes Gazzinelli
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil.
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, 364 Plantation Street, Lazare Research Building, 3rd Floor, Worcester, MA, USA.
- Departamento de Bioquímica E Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
| |
Collapse
|
6
|
Olatunde AC, Cornwall DH, Roedel M, Lamb TJ. Mouse Models for Unravelling Immunology of Blood Stage Malaria. Vaccines (Basel) 2022; 10:1525. [PMID: 36146602 PMCID: PMC9501382 DOI: 10.3390/vaccines10091525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Malaria comprises a spectrum of disease syndromes and the immune system is a major participant in malarial disease. This is particularly true in relation to the immune responses elicited against blood stages of Plasmodium-parasites that are responsible for the pathogenesis of infection. Mouse models of malaria are commonly used to dissect the immune mechanisms underlying disease. While no single mouse model of Plasmodium infection completely recapitulates all the features of malaria in humans, collectively the existing models are invaluable for defining the events that lead to the immunopathogenesis of malaria. Here we review the different mouse models of Plasmodium infection that are available, and highlight some of the main contributions these models have made with regards to identifying immune mechanisms of parasite control and the immunopathogenesis of malaria.
Collapse
Affiliation(s)
| | | | | | - Tracey J. Lamb
- Department of Pathology, University of Utah, Emma Eccles Jones Medical Research Building, 15 N Medical Drive E, Room 1420A, Salt Lake City, UT 84112, USA
| |
Collapse
|
7
|
Crabtree JN, Caffrey DR, de Souza Silva L, Kurt-Jones EA, Dobbs K, Dent A, Fitzgerald KA, Golenbock DT. Lymphocyte crosstalk is required for monocyte-intrinsic trained immunity to Plasmodium falciparum. J Clin Invest 2022; 132:e139298. [PMID: 35642634 PMCID: PMC9151696 DOI: 10.1172/jci139298] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 04/21/2022] [Indexed: 01/16/2023] Open
Abstract
Plasmodium falciparum (P. falciparum) induces trained innate immune responses in vitro, where initial stimulation of adherent PBMCs with P. falciparum-infected RBCs (iRBCs) results in hyperresponsiveness to subsequent ligation of TLR2. This response correlates with the presence of T and B lymphocytes in adherent PBMCs, suggesting that innate immune training is partially due to adaptive immunity. We found that T cell-depleted PBMCs and purified monocytes alone did not elicit hyperproduction of IL-6 and TNF-α under training conditions. Analysis of P. falciparum-trained PBMCs showed that DCs did not develop under control conditions, and IL-6 and TNF-α were primarily produced by monocytes and DCs. Transwell experiments isolating purified monocytes from either PBMCs or purified CD4+ T cells, but allowing diffusion of secreted proteins, enabled monocytes trained with iRBCs to hyperproduce IL-6 and TNF-α after TLR restimulation. Purified monocytes stimulated with IFN-γ hyperproduced IL-6 and TNF-α, whereas blockade of IFN-γ in P. falciparum-trained PBMCs inhibited trained responses. Assay for transposase-accessible chromatin with high-throughput sequencing (ATAC-Seq) on monocytes from patients with malaria showed persistently open chromatin at genes that appeared to be trained in vitro. Together, these findings indicate that the trained immune response of monocytes to P. falciparum is not completely cell intrinsic but depends on soluble signals from lymphocytes.
Collapse
Affiliation(s)
- Juliet N. Crabtree
- Program in Innate Immunity and
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Daniel R. Caffrey
- Program in Innate Immunity and
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Leandro de Souza Silva
- Program in Innate Immunity and
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Evelyn A. Kurt-Jones
- Program in Innate Immunity and
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | | | - Arlene Dent
- Case Western University, Cleveland, Ohio, USA
| | - Katherine A. Fitzgerald
- Program in Innate Immunity and
- Division of Innate Immunity, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Douglas T. Golenbock
- Program in Innate Immunity and
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| |
Collapse
|
8
|
Kordes M, Ormond L, Rausch S, Matuschewski K, Hafalla JCR. TLR9 signalling inhibits Plasmodium liver infection by macrophage activation. Eur J Immunol 2021; 52:270-284. [PMID: 34773640 DOI: 10.1002/eji.202149224] [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: 02/16/2021] [Revised: 09/14/2021] [Accepted: 11/08/2021] [Indexed: 11/08/2022]
Abstract
Recognition of pathogen-associated molecular patterns (PAMPs) through Toll-like receptors (TLRs) plays a pivotal role in first-line pathogen defense. TLRs are also likely triggered during a Plasmodium infection in vivo by parasite-derived components. However, the contribution of innate responses to liver infection and to the subsequent clinical outcome of a blood infection is not well understood. To assess the potential effects of enhanced TLR-signalling on Plasmodium infection, we systematically examined the effect of agonist-primed immune responses to sporozoite inoculation in the P. berghei/C57Bl/6 murine malaria model. We could identify distinct stage-specific effects on the course of infection after stimulation with two out of four TLR-ligands tested. Priming with a TLR9 agonist induced killing of pre-erythrocytic stages in the liver that depended on macrophages and the expression of inducible nitric oxide synthase (iNOS). These factors have previously not been recognized as antigen-independent effector mechanisms against Plasmodium liver stages. Priming with TLR4 and -9 agonists also translated into blood stage-specific protection against experimental cerebral malaria (ECM). These insights are relevant to the activation of TLR signalling pathways by adjuvant systems of antimalaria vaccine strategies. The protective role of TLR4-activation against ECM might also explain some unexpected clinical effects observed with pre-erythrocytic vaccine approaches.
Collapse
Affiliation(s)
- Maximilian Kordes
- Parasitology Unit, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Louise Ormond
- Department of Infection Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sebastian Rausch
- Institute of Immunology, Centre of Infection Medicine, Freie Universität Berlin, Berlin, Germany
| | - Kai Matuschewski
- Parasitology Unit, Max Planck Institute for Infection Biology, Berlin, Germany.,Department of Molecular Parasitology, Institute of Biology, Humboldt University, Berlin, Germany
| | - Julius Clemence R Hafalla
- Department of Infection Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| |
Collapse
|
9
|
Scheunemann JF, Reichwald JJ, Korir PJ, Kuehlwein JM, Jenster LM, Hammerschmidt-Kamper C, Lewis MD, Klocke K, Borsche M, Schwendt KE, Soun C, Thiebes S, Limmer A, Engel DR, Mueller AK, Hoerauf A, Hübner MP, Schumak B. Eosinophils Suppress the Migration of T Cells Into the Brain of Plasmodium berghei-Infected Ifnar1-/- Mice and Protect Them From Experimental Cerebral Malaria. Front Immunol 2021; 12:711876. [PMID: 34659202 PMCID: PMC8514736 DOI: 10.3389/fimmu.2021.711876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/13/2021] [Indexed: 11/29/2022] Open
Abstract
Cerebral malaria is a potentially lethal disease, which is caused by excessive inflammatory responses to Plasmodium parasites. Here we use a newly developed transgenic Plasmodium berghei ANKA (PbAAma1OVA) parasite that can be used to study parasite-specific T cell responses. Our present study demonstrates that Ifnar1-/- mice, which lack type I interferon receptor-dependent signaling, are protected from experimental cerebral malaria (ECM) when infected with this novel parasite. Although CD8+ T cell responses generated in the spleen are essential for the development of ECM, we measured comparable parasite-specific cytotoxic T cell responses in ECM-protected Ifnar1-/- mice and wild type mice suffering from ECM. Importantly, CD8+ T cells were increased in the spleens of ECM-protected Ifnar1-/- mice and the blood-brain-barrier remained intact. This was associated with elevated splenic levels of CCL5, a T cell and eosinophil chemotactic chemokine, which was mainly produced by eosinophils, and an increase in eosinophil numbers. Depletion of eosinophils enhanced CD8+ T cell infiltration into the brain and increased ECM induction in PbAAma1OVA-infected Ifnar1-/- mice. However, eosinophil-depletion did not reduce the CD8+ T cell population in the spleen or reduce splenic CCL5 concentrations. Our study demonstrates that eosinophils impact CD8+ T cell migration and proliferation during PbAAma1OVA-infection in Ifnar1-/- mice and thereby are contributing to the protection from ECM.
Collapse
Affiliation(s)
- Johanna F Scheunemann
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| | - Julia J Reichwald
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| | - Patricia Jebett Korir
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| | - Janina M Kuehlwein
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| | - Lea-Marie Jenster
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| | | | - Matthew D Lewis
- Parasitology Unit, Centre for Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany
| | - Katrin Klocke
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| | - Max Borsche
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| | - Kim E Schwendt
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| | - Camille Soun
- Institute for Experimental Immunology and Imaging, University Hospital Essen, Essen, Germany
| | - Stephanie Thiebes
- Institute for Experimental Immunology and Imaging, University Hospital Essen, Essen, Germany
| | - Andreas Limmer
- Clinic for Anesthesiology and Intensive Care, University Hospital Essen, Essen, Germany
| | - Daniel R Engel
- Institute for Experimental Immunology and Imaging, University Hospital Essen, Essen, Germany
| | - Ann-Kristin Mueller
- Parasitology Unit, Centre for Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany.,German Center for Infection Research (DZIF), Heidelberg, Germany
| | - Achim Hoerauf
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany.,German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| | - Marc P Hübner
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany.,German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| | - Beatrix Schumak
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
| |
Collapse
|
10
|
Plasmodium pre-erythrocytic vaccine antigens enhance sterile protection in mice induced by circumsporozoite protein. Infect Immun 2021; 89:e0016521. [PMID: 34310889 DOI: 10.1128/iai.00165-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Pre-erythrocytic vaccines prevent malaria by targeting parasites in the clinically silent sporozoite and liver stages and preventing progression to the virulent blood stages. The leading pre-erythrocytic vaccine RTS,S/AS01E (Mosquirix®) entered implementation programs in 2019 and targets the major sporozoite surface antigen called circumsporozoite protein or CSP. However, in phase III clinical trials, RTS,S conferred partial protection with limited durability, indicating a need to improve CSP-based vaccination. Previously, we identified highly expressed liver stage proteins that could potentially be used in combination with CSP and are referred to as pre-erythrocytic vaccine antigens (PEVA). Here, we developed heterologous prime-boost CSP vaccination models to confer partial sterilizing immunity against Plasmodium yoelii (Py)(protein prime/adenovirus 5 (Ad5) boost) and P. berghei (Pb) (DNA prime/Ad5 boost) in mice. When combined as individual antigens with PyCSP, 3 of 8 PyPEVA significantly enhanced sterile protection against sporozoite challenge, compared to PyCSP alone. Similar results were obtained when 3 PbPEVA and PbCSP were combined in a single vaccine regimen. In general, PyCSP antibody responses were similar after CSP alone versus CSP+PEVA vaccinations. Both Py and Pb CSP+PEVA combination vaccines induced robust CD8+ T cell responses including signature IFN-γ increases. In the Pb model system, IFN-γ responses were significantly higher in hepatic than splenic CD8+ T cells. The addition of novel antigens may enhance the degree and duration of sterile protective immunity conferred by a human vaccine such as RTS,S.
Collapse
|
11
|
The impact of malaria coinfection on Ebola virus disease outcomes: A systematic review and meta-analysis. PLoS One 2021; 16:e0251101. [PMID: 34029352 PMCID: PMC8143409 DOI: 10.1371/journal.pone.0251101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 04/13/2021] [Indexed: 11/19/2022] Open
Abstract
Introduction Viral outbreaks present a particular challenge in countries in Africa where there is already a high incidence of other infectious diseases, including malaria which can alter immune responses to secondary infection. Ebola virus disease (EVD) is one such problem; understanding how Plasmodium spp. and Ebolavirus (EBOV) interact is important for future outbreaks. Methods We conducted a systematic review in PubMed and Web of Science to find peer-reviewed papers with primary data literature to determine 1) prevalence of EBOV/Plasmodium spp. coinfection, 2) effect of EBOV/Plasmodium spp. coinfection on EVD pathology and the immune response, 3) impact of EBOV/Plasmodium spp. coinfection on the outcome of EVD-related mortality. Random effects meta-analyses were conducted with the R package meta to produce overall proportion and effect estimates as well as measure between-study heterogeneity. Results From 322 peer-reviewed papers, 17 were included in the qualitative review and nine were included in a meta-analysis. Prevalence of coinfection was between 19% and 72%. One study reported significantly lower coagulatory response biomarkers in coinfected cases but no difference in inflammatory markers. Case fatality rates were similar between EBOV(+)/Pl(+) and EBOV(+)/Pl(-) cases (62.8%, 95% CI 49.3–74.6 and 56.7%, 95% CI 53.2–60.1, respectively), and there was no significant difference in risk of mortality (RR 1.09, 95% CI 0.90–1.31) although heterogeneity between studies was high. One in vivo mouse model laboratory study found no difference in mortality by infection status, but another found prior acute Plasmodium yoeli infection was protective against morbidity and mortality via the IFN-γ signalling pathway. Conclusion The literature was inconclusive; studies varied widely and there was little attempt to adjust for confounding variables. Laboratory studies may present the best option to answer how pathogens interact within the body but improvement in data collection and analysis and in diagnostic methods would aid patient studies in the future.
Collapse
|
12
|
Assante G, Williams R, Youngson NA. Is the increased risk for MAFLD patients to develop severe COVID-19 linked to perturbation of the gut-liver axis? J Hepatol 2021; 74:487-488. [PMID: 32574578 PMCID: PMC7305888 DOI: 10.1016/j.jhep.2020.05.051] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/15/2020] [Accepted: 05/19/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Gabriella Assante
- The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - Roger Williams
- The Institute of Hepatology, Foundation for Liver Research, London, UK
| | - Neil Alexander Youngson
- The Institute of Hepatology, Foundation for Liver Research, London, UK; Faculty of Life Sciences and Medicine, King's College London, London, UK; School of medical Sciences, UNSW Sydney, Australia.
| |
Collapse
|
13
|
Dos Santos LI, Torres TA, Diniz SQ, Gonçalves R, Caballero-Flores G, Núñez G, Gazzinelli RT, Maloy KJ, Ribeiro do V Antonelli L. Disrupted Iron Metabolism and Mortality during Co-infection with Malaria and an Intestinal Gram-Negative Extracellular Pathogen. Cell Rep 2021; 34:108613. [PMID: 33440153 PMCID: PMC8655499 DOI: 10.1016/j.celrep.2020.108613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 10/31/2020] [Accepted: 12/16/2020] [Indexed: 11/29/2022] Open
Abstract
Individuals with malaria exhibit increased morbidity and mortality when infected with Gram-negative (Gr−) bacteria. To explore this experimentally, we performed co-infection of mice with Plasmodium chabaudi and Citrobacter rodentium, an extracellular Gr− bacterial pathogen that infects the large intestine. While single infections are controlled effectively, co-infection results in enhanced virulence that is characterized by prolonged systemic bacterial persistence and high mortality. Mortality in co-infected mice is associated with disrupted iron metabolism, elevated levels of plasma heme, and increased mitochondrial reactive oxygen species (ROS) production by phagocytes. In addition, iron acquisition by the bacterium plays a key role in pathogenesis because co-infection with a mutant C. rodentium strain lacking a critical iron acquisition pathway does not cause mortality. These results indicate that disrupted iron metabolism may drive mortality during co-infection with C. rodentium and P. chabaudi by both altering host immune responses and facilitating bacterial persistence. Co-infection with malaria and a Gram-negative bacterial pathogen leads to high mortality Co-infection leads to elevated plasma heme and systemic bacterial persistence Iron acquisition is critical for bacterial persistence and mortality
Collapse
Affiliation(s)
- Luara Isabela Dos Santos
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-009, Minas Gerais, Brazil; Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK
| | - Thais Abdala Torres
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-009, Minas Gerais, Brazil; Instituto de Ciências Biológicas, Departamento de Bioquimica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Suelen Queiroz Diniz
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-009, Minas Gerais, Brazil; Instituto de Ciências Biológicas, Departamento de Bioquimica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil
| | - Ricardo Gonçalves
- Departamento de Patologia Geral, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Minhas Gerais, Brazil
| | - Gustavo Caballero-Flores
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Gabriel Núñez
- Department of Pathology and Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Ricardo Tostes Gazzinelli
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-009, Minas Gerais, Brazil; Instituto de Ciências Biológicas, Departamento de Bioquimica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Minas Gerais, Brazil; University of Massachusetts Medical School, Worcester, MA 01605-2324, USA
| | - Kevin Joseph Maloy
- Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK; Institute of Infection, Immunity and Inflammation, University of Glasgow, Sir Graeme Davies Building, 120 University Place, Glasgow G12 8TA, Scotland.
| | | |
Collapse
|
14
|
Keswani T, Delcroix-Genete D, Herbert F, Leleu I, Lambert C, Draheim M, Salome-Desnoulez S, Saliou JM, Cazenave PA, Silvie O, Roland J, Pied S. Plasmodium yoelii Uses a TLR3-Dependent Pathway to Achieve Mammalian Host Parasitism. THE JOURNAL OF IMMUNOLOGY 2020; 205:3071-3082. [PMID: 33148715 DOI: 10.4049/jimmunol.1901317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 09/28/2020] [Indexed: 02/06/2023]
Abstract
Malaria is associated with complicated immunopathogenesis. In this study, we provide evidence for an unexpected role of TLR3 in promoting the establishment of Plasmodium yoelii infection through delayed clearance of parasitemia in wild type C57BL/6jRj (B6) compared with TLR3 knockout mice. In this study, we confirmed an increased expression of Tlr3, Trif, Tbk1, and Irf7/Irf3 in the liver 42 h postinfection and the initiation of an early burst of proinflammatory response such as Ifng, NF-kB, and Tnfa in B6 mice that may promote parasite fitness. Interestingly, in the absence of TLR3, we showed the involvement of high IFN-γ and lower type I IFN response in the early clearance of parasitemia. In parallel, we observed an increase in splenic NK and NKT cells expressing TLR3 in infected B6 mice, suggesting a role for TLR sensing in the innate immune response. Finally, we find evidence that the increase in the frequency of CD19+TLR3+ B cells along with reduced levels of total IgG in B6 mice possibly suggests the initiation of TLR3-dependent pathway early during P. yoelii infection. Our results thus reveal a new mechanism in which a parasite-activated TLR3 pathway promotes blood stage infection along with quantitative and qualitative differences in Ab responses.
Collapse
Affiliation(s)
- Tarun Keswani
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | - Delphine Delcroix-Genete
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | - Fabien Herbert
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | - Ines Leleu
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | - Claire Lambert
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | - Marion Draheim
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | | | - Jean Michel Saliou
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | - Pierre-André Cazenave
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | - Olivier Silvie
- Sorbonne Université, Inserm, CNRS, Centre d'Immunologie et des Maladies Infectieuses, CIMI-Paris, 75013 Paris, France
| | - Jacques Roland
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | - Sylviane Pied
- Team 10: Tropical Biomes & Immunopathophysiology, Université de Lille, Centre Hospitalier Régional Universitaire de Lille, CNRS, INSERM, Institut Pasteur de Lille, U1019 - UMR 9017 - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France;
| |
Collapse
|
15
|
Walk J, Keramati F, de Bree LCJ, Arts RJW, Blok B, Netea MG, Stunnenberg HG, Sauerwein RW. Controlled Human Malaria Infection Induces Long-Term Functional Changes in Monocytes. Front Mol Biosci 2020; 7:604553. [PMID: 33324683 PMCID: PMC7726436 DOI: 10.3389/fmolb.2020.604553] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/02/2020] [Indexed: 12/21/2022] Open
Abstract
Innate immune memory responses (also termed "trained immunity") have been described in monocytes after BCG vaccination and after stimulation in vitro with microbial and endogenous ligands such as LPS, β-glucan, oxidized LDL, and monosodium urate crystals. However, whether clinical infections are also capable of inducing a trained immunity phenotype remained uncertain. We evaluated whether Plasmodium falciparum infection can induce innate immune memory by measuring monocyte-derived cytokine production from five volunteers undergoing Controlled Human Malaria Infection. Monocyte responses followed a biphasic pattern: during acute infection, monocytes produced lower amounts of inflammatory cytokines upon secondary stimulation, but 36 days after malaria infection they produced significantly more IL-6 and TNF-α in response to various stimuli. Furthermore, transcriptomic and epigenomic data analysis revealed a clear reprogramming of monocytes at both timepoints, with long-term changes of H3K4me3 at the promoter regions of inflammatory genes that remain present for several weeks after parasite clearance. These findings demonstrate an epigenetic basis of trained immunity induced by human malaria in vivo.
Collapse
Affiliation(s)
- Jona Walk
- Department of Medical Microbiology and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands.,Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Farid Keramati
- Department of Molecular Biology, Faculty of Science, Radboud University, Nijmegen, Netherlands
| | - L Charlotte J de Bree
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands.,Research Center for Vitamins and Vaccines, Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark.,Odense Patient Data Explorative Network, University of Southern Denmark/Odense University Hospital, Odense, Denmark
| | - Rob J W Arts
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Bas Blok
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands.,Research Center for Vitamins and Vaccines, Bandim Health Project, Statens Serum Institut, Copenhagen, Denmark.,Odense Patient Data Explorative Network, University of Southern Denmark/Odense University Hospital, Odense, Denmark
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands.,Department for Immunology and Metabolism, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Hendrik G Stunnenberg
- Department of Molecular Biology, Faculty of Science, Radboud University, Nijmegen, Netherlands
| | - Robert W Sauerwein
- Department of Medical Microbiology and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| |
Collapse
|
16
|
Pereira LMN, Assis PA, de Araújo NM, Durso DF, Junqueira C, Ataíde MA, Pereira DB, Lien E, Fitzgerald KA, Zamboni DS, Golenbock DT, Gazzinelli RT. Caspase-8 mediates inflammation and disease in rodent malaria. Nat Commun 2020; 11:4596. [PMID: 32929083 PMCID: PMC7490701 DOI: 10.1038/s41467-020-18295-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 08/08/2020] [Indexed: 12/18/2022] Open
Abstract
Earlier studies indicate that either the canonical or non-canonical pathways of inflammasome activation have a limited role on malaria pathogenesis. Here, we report that caspase-8 is a central mediator of systemic inflammation, septic shock in the Plasmodium chabaudi-infected mice and the P. berghei-induced experimental cerebral malaria (ECM). Importantly, our results indicate that the combined deficiencies of caspases-8/1/11 or caspase-8/gasdermin-D (GSDM-D) renders mice impaired to produce both TNFα and IL-1β and highly resistant to lethality in these models, disclosing a complementary, but independent role of caspase-8 and caspases-1/11/GSDM-D in the pathogenesis of malaria. Further, we find that monocytes from malaria patients express active caspases-1, -4 and -8 suggesting that these inflammatory caspases may also play a role in the pathogenesis of human disease. Inflammasome activation plays a role in malaria pathogenesis, but details aren’t well understood. Here, the authors show that caspase-8 is a central mediator of systemic inflammation in rodent malaria and that monocytes from malaria patients express active caspases-1, -4 and -8.
Collapse
Affiliation(s)
- Larissa M N Pereira
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil.,Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.,Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Patrícia A Assis
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Natalia M de Araújo
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil.,Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Danielle F Durso
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Caroline Junqueira
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil
| | - Marco Antônio Ataíde
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil.,Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Dhelio B Pereira
- Centro de Pesquisas em Medicina Tropical, FIOCRUZ-RO, Porto Velho, RO, 76812-329, Brazil
| | - Egil Lien
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Katherine A Fitzgerald
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Dario S Zamboni
- Departamento de Biologia Celular Molecular e Bioagentes Patogenicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Douglas T Golenbock
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil.,Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Ricardo T Gazzinelli
- Instituto Rene Rachou, FIOCRUZ-MG, Belo Horizonte, MG, 30190-002, Brazil. .,Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil. .,Department of Medicine, University of Massachusetts Medical School, Worcester, MA, 01605, USA. .,Plataforma de Medicina Translacional, Fundação Oswaldo Cruz/Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto, SP, 14049-900, Brazil.
| |
Collapse
|
17
|
Microbial Exposure Enhances Immunity to Pathogens Recognized by TLR2 but Increases Susceptibility to Cytokine Storm through TLR4 Sensitization. Cell Rep 2020; 28:1729-1743.e5. [PMID: 31412243 DOI: 10.1016/j.celrep.2019.07.028] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 05/23/2019] [Accepted: 07/11/2019] [Indexed: 02/08/2023] Open
Abstract
Microbial exposures can define an individual's basal immune state. Cohousing specific pathogen-free (SPF) mice with pet store mice, which harbor numerous infectious microbes, results in global changes to the immune system, including increased circulating phagocytes and elevated inflammatory cytokines. How these differences in the basal immune state influence the acute response to systemic infection is unclear. Cohoused mice exhibit enhanced protection from virulent Listeria monocytogenes (LM) infection, but increased morbidity and mortality to polymicrobial sepsis. Cohoused mice have more TLR2+ and TLR4+ phagocytes, enhancing recognition of microbes through pattern-recognition receptors. However, the response to a TLR2 ligand is muted in cohoused mice, whereas the response to a TLR4 ligand is greatly amplified, suggesting a basis for the distinct response to Listeria monocytogenes and sepsis. Our data illustrate how microbial exposure can enhance the immune response to unrelated challenges but also increase the risk of immunopathology from a severe cytokine storm.
Collapse
|
18
|
Schiess N, Villabona-Rueda A, Cottier KE, Huether K, Chipeta J, Stins MF. Pathophysiology and neurologic sequelae of cerebral malaria. Malar J 2020; 19:266. [PMID: 32703204 PMCID: PMC7376930 DOI: 10.1186/s12936-020-03336-z] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 07/13/2020] [Indexed: 12/14/2022] Open
Abstract
Cerebral malaria (CM), results from Plasmodium falciparum infection, and has a high mortality rate. CM survivors can retain life-long post CM sequelae, including seizures and neurocognitive deficits profoundly affecting their quality of life. As the Plasmodium parasite does not enter the brain, but resides inside erythrocytes and are confined to the lumen of the brain's vasculature, the neuropathogenesis leading to these neurologic sequelae is unclear and under-investigated. Interestingly, postmortem CM pathology differs in brain regions, such as the appearance of haemorragic punctae in white versus gray matter. Various host and parasite factors contribute to the risk of CM, including exposure at a young age, parasite- and host-related genetics, parasite sequestration and the extent of host inflammatory responses. Thus far, several proposed adjunctive treatments have not been successful in the treatment of CM but are highly needed. The region-specific CM neuro-pathogenesis leading to neurologic sequelae is intriguing, but not sufficiently addressed in research. More attention to this may lead to the development of effective adjunctive treatments to address CM neurologic sequelae.
Collapse
Affiliation(s)
- Nicoline Schiess
- Department of Neurology, Johns Hopkins School of Medicine, 600 N. Wolfe St., Meyer 6-113, Baltimore, MD, 21287, USA
| | - Andres Villabona-Rueda
- Malaria Research Institute, Dept Molecular Microbiology Immunology, Johns Hopkins School of Public Health, 615 N Wolfe Street, Baltimore, MD, 21205, USA
| | - Karissa E Cottier
- Malaria Research Institute, Dept Molecular Microbiology Immunology, Johns Hopkins School of Public Health, 615 N Wolfe Street, Baltimore, MD, 21205, USA.,BioIVT, 1450 South Rolling Road, Baltimore, MD, USA
| | | | - James Chipeta
- Department of Paediatrics, University Teaching Hospital, Nationalist Road, Lusaka, Zambia
| | - Monique F Stins
- Malaria Research Institute, Dept Molecular Microbiology Immunology, Johns Hopkins School of Public Health, 615 N Wolfe Street, Baltimore, MD, 21205, USA.
| |
Collapse
|
19
|
Fievet N, Ezinmegnon S, Agbota G, Sossou D, Ladekpo R, Gbedande K, Briand V, Cottrell G, Vachot L, Yugueros Marcos J, Pachot A, Textoris J, Blein S, Lausten-Thomsen U, Massougbodji A, Bagnan L, Tchiakpe N, d'Almeida M, Alao J, Dossou-Dagba I, Tissieres P. SEPSIS project: a protocol for studying biomarkers of neonatal sepsis and immune responses of infants in a malaria-endemic region. BMJ Open 2020; 10:e036905. [PMID: 32709653 PMCID: PMC7380952 DOI: 10.1136/bmjopen-2020-036905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Neonatal sepsis outreaches all causes of neonatal mortality worldwide and remains a major societal burden in low and middle income countries. In addition to limited resources, endemic morbidities, such as malaria and prematurity, predispose neonates and infants to invasive infection by altering neonatal immune response to pathogens. Nevertheless, thoughtful epidemiological, diagnostic and immunological evaluation of neonatal sepsis and the impact of gestational malaria have never been performed. METHODS AND ANALYSIS A prospective longitudinal multicentre follow-up of 580 infants from birth to 3 months of age in urban and suburban Benin will be performed. At delivery, and every other week, all children will be examined and clinically evaluated for occurrence of sepsis. At delivery, cord blood systematic analysis of selected plasma and transcriptomic biomarkers (procalcitonin, interleukin (IL)-6, IL-10, IP10, CD74 and CX3CR1) associated with sepsis pathophysiology will be evaluated in all live births as well as during the follow-up, and when sepsis will be suspected. In addition, whole blood response to selected innate stimuli and extensive peripheral blood mononuclear cells phenotypic characterisation will be performed. Reference intervals specific to sub-Saharan neonates will be determined from this cohort and biomarkers performances for neonatal sepsis diagnosis and prognosis tested. ETHICS AND DISSEMINATION Ethical approval has been obtained from the Comité d'Ethique de la Recherche - Institut des Sciences Biomédicales Appliquées (CER-ISBA 85 - 5 April 2016, extended on 3 February 2017). Results will be disseminated through international presentations at scientific meetings and publications in peer-reviewed journals. TRIAL REGISTRATION NUMBER ClinicalTrials.gov registration number: NCT03780712.
Collapse
Affiliation(s)
- Nadine Fievet
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
- COMUE Sorbonne Paris Cité, Universite Paris Descartes, Paris, Île-de-France, France
| | - Sem Ezinmegnon
- Department of Microbiology, Institut de Biologie Integrative de la Cellule, Gif-sur-Yvette, France
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
| | - Gino Agbota
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
- Institut de Recherche Clinique du Bénin, Calavi, Benin
| | - Darius Sossou
- Institut de Recherche Clinique du Bénin, Calavi, Benin
| | | | - Komi Gbedande
- Institut de Recherche Clinique du Benin, Cotonou, Benin
| | - Valerie Briand
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
| | - Gilles Cottrell
- UMR216, Institut de Recherche pour le Développement, Cotonou, Benin
- Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Laurence Vachot
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
| | - Javier Yugueros Marcos
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
| | - Alexandre Pachot
- EA 7426 Pathophysiology of Injury-Induced Immunosuppression, bioMerieux, LYON cedex 03, France
| | - Julien Textoris
- EA 7426 Pathophysiology of Injury-Induced Immunosuppression, bioMerieux, LYON cedex 03, France
- Département d'Anesthésie et de Réanimation, Hospices Civils de Lyon, LYON Cedex 03, France
| | - Sophie Blein
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
- EA 7426 Pathophysiology of Injury-Induced Immunosuppression, bioMerieux, LYON cedex 03, France
| | - Ulrik Lausten-Thomsen
- Pediatric Intensive Care, Hopitaux Universitaires Paris-Sud, Le Kremlin-Bicetre, France
| | | | - Lehila Bagnan
- Institut de Recherche Clinique du Bénin, Calavi, Benin
- Department of Paediatric, National University Hospital Center (CNHU), Cotonou, Benin
| | - Nicole Tchiakpe
- Institut de Recherche Clinique du Bénin, Calavi, Benin
- Department of Paediatric, Centre Hospitalier Universitaire de la Mère et de l'Enfant Lagune (CHUMEL), Cotonou, Benin
| | - Marceline d'Almeida
- Department of Paediatric, National University Hospital Center (CNHU), Cotonou, Benin
- Institut de Recherche Clinique du Benin, Calavi, Île-de-France, Benin
| | | | | | - Pierre Tissieres
- Department of Microbiology, Institut de Biologie Integrative de la Cellule, Gif-sur-Yvette, France
- Pediatric Intensive Care, Hopitaux Universitaires Paris-Sud, Le Kremlin-Bicetre, France
| |
Collapse
|
20
|
Troye-Blomberg M, Arama C, Quin J, Bujila I, Östlund Farrants AK. What will studies of Fulani individuals naturally exposed to malaria teach us about protective immunity to malaria? Scand J Immunol 2020; 92:e12932. [PMID: 32652609 PMCID: PMC7583377 DOI: 10.1111/sji.12932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/18/2020] [Accepted: 07/06/2020] [Indexed: 12/27/2022]
Abstract
There are an estimated over 200 million yearly cases of malaria worldwide. Despite concerted international effort to combat the disease, it still causes approximately half a million deaths every year, the majority of which are young children with Plasmodium falciparum infection in sub‐Saharan Africa. Successes are largely attributed to malaria prevention strategies, such as insecticide‐treated mosquito nets and indoor spraying, as well as improved access to existing treatments. One important hurdle to new approaches for the treatment and prevention of malaria is our limited understanding of the biology of Plasmodium infection and its complex interaction with the immune system of its human host. Therefore, the elimination of malaria in Africa not only relies on existing tools to reduce malaria burden, but also requires fundamental research to develop innovative approaches. Here, we summarize our discoveries from investigations of ethnic groups of West Africa who have different susceptibility to malaria.
Collapse
Affiliation(s)
- Marita Troye-Blomberg
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Charles Arama
- Department of Epidemiology of Parasitic Diseases, International Center of Excellence in Research, Malaria Research and Training Centre, University of Sciences, Technique and Technology of Bamako, Bamako, Mali
| | - Jaclyn Quin
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden.,CEITEC Masaryk University, Brno, Czech Republic
| | - Ioana Bujila
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden.,Department of Microbiology, Public Health Agency of Sweden, Solna, Sweden
| | | |
Collapse
|
21
|
Loughland JR, Woodberry T, Field M, Andrew DW, SheelaNair A, Dooley NL, Piera KA, Amante FH, Kenangalem E, Price RN, Engwerda CR, Anstey NM, McCarthy JS, Boyle MJ, Minigo G. Transcriptional profiling and immunophenotyping show sustained activation of blood monocytes in subpatent Plasmodium falciparum infection. Clin Transl Immunology 2020; 9:e1144. [PMID: 32566226 PMCID: PMC7302943 DOI: 10.1002/cti2.1144] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/17/2020] [Accepted: 05/18/2020] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVES Malaria, caused by Plasmodium infection, remains a major global health problem. Monocytes are integral to the immune response, yet their transcriptional and functional responses in primary Plasmodium falciparum infection and in clinical malaria are poorly understood. METHODS The transcriptional and functional profiles of monocytes were examined in controlled human malaria infection with P. falciparum blood stages and in children and adults with acute malaria. Monocyte gene expression and functional phenotypes were examined by RNA sequencing and flow cytometry at peak infection and compared to pre-infection or at convalescence in acute malaria. RESULTS In subpatent primary infection, the monocyte transcriptional profile was dominated by an interferon (IFN) molecular signature. Pathways enriched included type I IFN signalling, innate immune response and cytokine-mediated signalling. Monocytes increased TNF and IL-12 production upon in vitro toll-like receptor stimulation and increased IL-10 production upon in vitro parasite restimulation. Longitudinal phenotypic analyses revealed sustained significant changes in the composition of monocytes following infection, with increased CD14+CD16- and decreased CD14-CD16+ subsets. In acute malaria, monocyte CD64/FcγRI expression was significantly increased in children and adults, while HLA-DR remained stable. Although children and adults showed a similar pattern of differentially expressed genes, the number and magnitude of gene expression change were greater in children. CONCLUSIONS Monocyte activation during subpatent malaria is driven by an IFN molecular signature with robust activation of genes enriched in pathogen detection, phagocytosis, antimicrobial activity and antigen presentation. The greater magnitude of transcriptional changes in children with acute malaria suggests monocyte phenotypes may change with age or exposure.
Collapse
Affiliation(s)
- Jessica R Loughland
- QIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia,Menzies School of Health ResearchDarwinNTAustralia
| | - Tonia Woodberry
- Menzies School of Health ResearchDarwinNTAustralia,Charles Darwin UniversityDarwinNTAustralia,Present address:
The University of NewcastleCallaghanNSWAustralia
| | - Matt Field
- Australian Institute of Tropical Health and Medicine and Centre for Tropical Bioinformatics and Molecular BiologyJames Cook UniversityCairnsQLDAustralia,John Curtin School of Medical ResearchAustralian National UniversityCanberraACTAustralia
| | - Dean W Andrew
- QIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia
| | - Arya SheelaNair
- QIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia
| | | | - Kim A Piera
- Menzies School of Health ResearchDarwinNTAustralia,Charles Darwin UniversityDarwinNTAustralia
| | - Fiona H Amante
- QIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia
| | - Enny Kenangalem
- Timika Malaria Research ProgramPapuan Health and Community Development FoundationTimikaIndonesia,District Health AuthorityTimikaIndonesia
| | - Ric N Price
- Menzies School of Health ResearchDarwinNTAustralia,Charles Darwin UniversityDarwinNTAustralia,Centre for Tropical Medicine and Global HealthNuffield Department of Clinical MedicineUniversity of OxfordOxfordUK,Mahidol‐Oxford Tropical Medicine Research UnitFaculty of Tropical MedicineMahidol UniversityBangkokThailand
| | | | - Nicholas M Anstey
- Menzies School of Health ResearchDarwinNTAustralia,Charles Darwin UniversityDarwinNTAustralia
| | | | - Michelle J Boyle
- QIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia,Menzies School of Health ResearchDarwinNTAustralia
| | - Gabriela Minigo
- Menzies School of Health ResearchDarwinNTAustralia,Charles Darwin UniversityDarwinNTAustralia,College of Health and Human SciencesCharles Darwin UniversityDarwinNTAustralia
| |
Collapse
|
22
|
Videvall E, Palinauskas V, Valkiūnas G, Hellgren O. Host Transcriptional Responses to High- and Low-Virulent Avian Malaria Parasites. Am Nat 2020; 195:1070-1084. [DOI: 10.1086/708530] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
23
|
Genetic diversity and immunogenicity analysis of 6-cysteine protein family members in Plasmodium ovale curtisi importess from Africa to China: P12, P38 and P41. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
24
|
Pritam M, Singh G, Swaroop S, Singh AK, Pandey B, Singh SP. A cutting-edge immunoinformatics approach for design of multi-epitope oral vaccine against dreadful human malaria. Int J Biol Macromol 2020; 158:159-179. [PMID: 32360460 PMCID: PMC7189201 DOI: 10.1016/j.ijbiomac.2020.04.191] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/28/2020] [Accepted: 04/22/2020] [Indexed: 12/18/2022]
Abstract
Human malaria is a pathogenic disease mainly caused by Plasmodium falciparum, which was responsible for about 405,000 deaths globally in the year 2018. To date, several vaccine candidates have been evaluated for prevention, which failed to produce optimal output at various preclinical/clinical stages. This study is based on designing of polypeptide vaccines (PVs) against human malaria that cover almost all stages of life-cycle of Plasmodium and for the same 5 genome derived predicted antigenic proteins (GDPAP) have been used. For the development of a multi-immune inducer, 15 PVs were initially designed using T-cell epitope ensemble, which covered >99% human population as well as linear B-cell epitopes with or without adjuvants. The immune simulation of PVs showed higher levels of T-cell and B-cell activities compared to positive and negative vaccine controls. Furthermore, in silico cloning of PVs and codon optimization followed by enhanced expression within Lactococcus lactis host system was also explored. Although, the study has sound theoretical and in silico findings, the in vitro/in vivo evaluation seems imperative to warrant the immunogenicity and safety of PVs towards management of P. falciparum infection in the future.
Collapse
Affiliation(s)
- Manisha Pritam
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow 226028, India
| | - Garima Singh
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow 226028, India
| | - Suchit Swaroop
- Experimental & Public Health Lab, Department of Zoology, University of Lucknow, Lucknow 226007, India
| | - Akhilesh Kumar Singh
- Department of Biotechnology, Mahatma Gandhi Central University, Bihar 845401, India
| | - Brijesh Pandey
- Department of Biotechnology, Mahatma Gandhi Central University, Bihar 845401, India
| | | |
Collapse
|
25
|
Reis AS, Barboza R, Murillo O, Barateiro A, Peixoto EPM, Lima FA, Gomes VM, Dombrowski JG, Leal VNC, Araujo F, Bandeira CL, Araujo RBD, Neres R, Souza RM, Costa FTM, Pontillo A, Bevilacqua E, Wrenger C, Wunderlich G, Palmisano G, Labriola L, Bortoluci KR, Penha-Gonçalves C, Gonçalves LA, Epiphanio S, Marinho CRF. Inflammasome activation and IL-1 signaling during placental malaria induce poor pregnancy outcomes. SCIENCE ADVANCES 2020; 6:eaax6346. [PMID: 32181339 PMCID: PMC7056302 DOI: 10.1126/sciadv.aax6346] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 12/11/2019] [Indexed: 05/12/2023]
Abstract
Placental malaria (PM) is associated with severe inflammation leading to abortion, preterm delivery, and intrauterine growth restriction. Innate immunity responses play critical roles, but the mechanisms underlying placental immunopathology are still unclear. Here, we investigated the role of inflammasome activation in PM by scrutinizing human placenta samples from an endemic area and ablating inflammasome components in a PM mouse model. The reduction in birth weight in babies from infected mothers is paralleled by increased placental expression of AIM2 and NLRP3 inflammasomes. Using genetic dissection, we reveal that inflammasome activation pathways are involved in the production and detrimental action of interleukin-1β (IL-1β) in the infected placenta. The IL-1R pharmacological antagonist Anakinra improved pregnancy outcomes by restoring fetal growth and reducing resorption in an experimental model. These findings unveil that IL-1β-mediated signaling is a determinant of PM pathogenesis, suggesting that IL-1R antagonists can improve clinical outcomes of malaria infection in pregnancy.
Collapse
MESH Headings
- Animals
- Caspase 1/genetics
- Caspase 1/immunology
- Cell Line
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/immunology
- Female
- Gene Expression Regulation
- Humans
- Immunity, Innate
- Immunologic Factors/pharmacology
- Inflammasomes/drug effects
- Inflammasomes/genetics
- Inflammasomes/immunology
- Interferon-gamma/genetics
- Interferon-gamma/immunology
- Interleukin 1 Receptor Antagonist Protein/pharmacology
- Interleukin-1beta/antagonists & inhibitors
- Interleukin-1beta/genetics
- Interleukin-1beta/immunology
- Malaria/drug therapy
- Malaria/genetics
- Malaria/immunology
- Malaria/parasitology
- Malaria, Falciparum/genetics
- Malaria, Falciparum/immunology
- Malaria, Falciparum/parasitology
- Malaria, Falciparum/pathology
- Mice
- Mice, Knockout
- NLR Family, Pyrin Domain-Containing 3 Protein/genetics
- NLR Family, Pyrin Domain-Containing 3 Protein/immunology
- Plasmodium berghei/immunology
- Plasmodium berghei/pathogenicity
- Plasmodium falciparum/immunology
- Plasmodium falciparum/pathogenicity
- Pregnancy
- Pregnancy Complications, Parasitic/genetics
- Pregnancy Complications, Parasitic/immunology
- Pregnancy Complications, Parasitic/parasitology
- Pregnancy Complications, Parasitic/prevention & control
- Receptors, Interleukin-1/genetics
- Receptors, Interleukin-1/immunology
- Signal Transduction/drug effects
- Signal Transduction/immunology
- THP-1 Cells
- Trophoblasts/drug effects
- Trophoblasts/immunology
- Trophoblasts/parasitology
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/immunology
Collapse
Affiliation(s)
- Aramys S. Reis
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
- Faculdade de Medicina, Centro de Ciências Sociais, Saúde e Tecnologia, Universidade Federal do Maranhão, Imperatriz, MA, Brazil
| | - Renato Barboza
- Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, SP, Brazil
| | - Oscar Murillo
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - André Barateiro
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Erika P. M. Peixoto
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Flávia A. Lima
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Vinícius M. Gomes
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Jamille G. Dombrowski
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Vinícius N. C. Leal
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Franciele Araujo
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Carla L. Bandeira
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Rosana B. D. Araujo
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Rita Neres
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | - Rodrigo M. Souza
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
- Centro Multidisciplinar, Campus Floresta, Universidade Federal do Acre, Cruzeiro do Sul, AC, Brazil
| | - Fabio T. M. Costa
- Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Alessandra Pontillo
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Estela Bevilacqua
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Carsten Wrenger
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Gerhard Wunderlich
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Giuseppe Palmisano
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Leticia Labriola
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Karina R. Bortoluci
- Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, SP, Brazil
| | | | - Lígia A. Gonçalves
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Sabrina Epiphanio
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Claudio R. F. Marinho
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
- Corresponding author.
| |
Collapse
|
26
|
Gbedande K, Carpio VH, Stephens R. Using two phases of the CD4 T cell response to blood-stage murine malaria to understand regulation of systemic immunity and placental pathology in Plasmodium falciparum infection. Immunol Rev 2020; 293:88-114. [PMID: 31903675 PMCID: PMC7540220 DOI: 10.1111/imr.12835] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/08/2019] [Accepted: 12/09/2019] [Indexed: 02/06/2023]
Abstract
Plasmodium falciparum infection and malaria remain a risk for millions of children and pregnant women. Here, we seek to integrate knowledge of mouse and human T helper cell (Th) responses to blood-stage Plasmodium infection to understand their contribution to protection and pathology. Although there is no complete Th subset differentiation, the adaptive response occurs in two phases in non-lethal rodent Plasmodium infection, coordinated by Th cells. In short, cellular immune responses limit the peak of parasitemia during the first phase; in the second phase, humoral immunity from T cell-dependent germinal centers is critical for complete clearance of rapidly changing parasite. A strong IFN-γ response kills parasite, but an excess of TNF compared with regulatory cytokines (IL-10, TGF-β) can cause immunopathology. This common pathway for pathology is associated with anemia, cerebral malaria, and placental malaria. These two phases can be used to both understand how the host responds to rapidly growing parasite and how it attempts to control immunopathology and variation. This dual nature of T cell immunity to Plasmodium is discussed, with particular reference to the protective nature of the continuous generation of effector T cells, and the unique contribution of effector memory T cells.
Collapse
Affiliation(s)
- Komi Gbedande
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Victor H Carpio
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Robin Stephens
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas
| |
Collapse
|
27
|
Dobbs KR, Crabtree JN, Dent AE. Innate immunity to malaria-The role of monocytes. Immunol Rev 2020; 293:8-24. [PMID: 31840836 PMCID: PMC6986449 DOI: 10.1111/imr.12830] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/19/2019] [Accepted: 11/25/2019] [Indexed: 12/12/2022]
Abstract
Monocytes are innate immune cells essential for host protection against malaria. Upon activation, monocytes function to help reduce parasite burden through phagocytosis, cytokine production, and antigen presentation. However, monocytes have also been implicated in the pathogenesis of severe disease through production of damaging inflammatory cytokines, resulting in systemic inflammation and vascular dysfunction. Understanding the molecular pathways influencing the balance between protection and pathology is critical. In this review, we discuss recent data regarding the role of monocytes in human malaria, including studies of innate sensing of the parasite, immunometabolism, and innate immune training. Knowledge gained from these studies may guide rational development of novel antimalarial therapies and inform vaccine development.
Collapse
Affiliation(s)
- Katherine R. Dobbs
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, OH, USA
- Division of Pediatric Infectious Diseases, University Hospitals Rainbow Babies and Children’s Hospital, Cleveland, OH, USA
| | - Juliet N. Crabtree
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Arlene E. Dent
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, OH, USA
- Division of Pediatric Infectious Diseases, University Hospitals Rainbow Babies and Children’s Hospital, Cleveland, OH, USA
| |
Collapse
|
28
|
Hodgson SH, Muller J, Lockstone HE, Hill AVS, Marsh K, Draper SJ, Knight JC. Use of gene expression studies to investigate the human immunological response to malaria infection. Malar J 2019; 18:418. [PMID: 31835999 PMCID: PMC6911278 DOI: 10.1186/s12936-019-3035-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 11/26/2019] [Indexed: 01/02/2023] Open
Abstract
Background Transcriptional profiling of the human immune response to malaria has been used to identify diagnostic markers, understand the pathogenicity of severe disease and dissect the mechanisms of naturally acquired immunity (NAI). However, interpreting this body of work is difficult given considerable variation in study design, definition of disease, patient selection and methodology employed. This work details a comprehensive review of gene expression profiling (GEP) of the human immune response to malaria to determine how this technology has been applied to date, instances where this has advanced understanding of NAI and the extent of variability in methodology between studies to allow informed comparison of data and interpretation of results. Methods Datasets from the gene expression omnibus (GEO) including the search terms; ‘plasmodium’ or ‘malaria’ or ‘sporozoite’ or ‘merozoite’ or ‘gametocyte’ and ‘Homo sapiens’ were identified and publications analysed. Datasets of gene expression changes in relation to malaria vaccines were excluded. Results Twenty-three GEO datasets and 25 related publications were included in the final review. All datasets related to Plasmodium falciparum infection, except two that related to Plasmodium vivax infection. The majority of datasets included samples from individuals infected with malaria ‘naturally’ in the field (n = 13, 57%), however some related to controlled human malaria infection (CHMI) studies (n = 6, 26%), or cells stimulated with Plasmodium in vitro (n = 6, 26%). The majority of studies examined gene expression changes relating to the blood stage of the parasite. Significant heterogeneity between datasets was identified in terms of study design, sample type, platform used and method of analysis. Seven datasets specifically investigated transcriptional changes associated with NAI to malaria, with evidence supporting suppression of the innate pro-inflammatory response as an important mechanism for this in the majority of these studies. However, further interpretation of this body of work was limited by heterogeneity between studies and small sample sizes. Conclusions GEP in malaria is a potentially powerful tool, but to date studies have been hypothesis generating with small sample sizes and widely varying methodology. As CHMI studies are increasingly performed in endemic settings, there will be growing opportunity to use GEP to understand detailed time-course changes in host response and understand in greater detail the mechanisms of NAI.
Collapse
Affiliation(s)
- Susanne H Hodgson
- The Jenner Institute, University of Oxford, Old Road Campus Road Building, Off Roosevelt Drive, Oxford, OX3 7DQ, UK. .,Department of Infectious Diseases & Microbiology, Oxford University Hospitals Trust, Oxford, UK.
| | - Julius Muller
- The Jenner Institute, University of Oxford, Old Road Campus Road Building, Off Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Helen E Lockstone
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Adrian V S Hill
- The Jenner Institute, University of Oxford, Old Road Campus Road Building, Off Roosevelt Drive, Oxford, OX3 7DQ, UK.,Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Kevin Marsh
- Department of Tropical Medicine, University of Oxford, Oxford, UK
| | - Simon J Draper
- The Jenner Institute, University of Oxford, Old Road Campus Road Building, Off Roosevelt Drive, Oxford, OX3 7DQ, UK
| | - Julian C Knight
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| |
Collapse
|
29
|
Nallandhighal S, Park GS, Ho YY, Opoka RO, John CC, Tran TM. Whole-Blood Transcriptional Signatures Composed of Erythropoietic and NRF2-Regulated Genes Differ Between Cerebral Malaria and Severe Malarial Anemia. J Infect Dis 2019; 219:154-164. [PMID: 30060095 DOI: 10.1093/infdis/jiy468] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 07/24/2018] [Indexed: 02/03/2023] Open
Abstract
Background Among the severe malaria syndromes, severe malarial anemia (SMA) is the most common, whereas cerebral malaria (CM) is the most lethal. However, the mechanisms that lead to CM and SMA are unclear. Methods We compared transcriptomic profiles of whole blood obtained from Ugandan children with acute CM (n = 17) or SMA (n = 17) and community children without Plasmodium falciparum infection (n = 12) and determined the relationships among gene expression, hematological indices, and relevant plasma biomarkers. Results Both CM and SMA demonstrated predominantly upregulated enrichment of dendritic cell activation, inflammatory/Toll-like receptor/chemokines, and monocyte modules, but downregulated enrichment of lymphocyte modules. Nuclear factor, erythroid 2 like 2 (Nrf2)-regulated genes were overexpressed in children with SMA relative to CM, with the highest expression in children with both SMA and sickle cell disease (HbSS), corresponding with elevated plasma heme oxygenase-1 in this group. Erythroid and reticulocyte-specific signatures were markedly decreased in CM relative to SMA despite higher hemoglobin levels and appropriate increases in erythropoietin. Viral sensing/interferon-regulatory factor 2 module expression and plasma interferon-inducible protein-10/CXCL10 negatively correlated with reticulocyte-specific signatures. Conclusions Compared with SMA, CM is associated with downregulation of Nrf2-related and erythropoiesis signatures by whole-blood transcriptomics. Future studies are needed to confirm these findings and assess pathways that may be amenable to interventions to ameliorate CM and SMA.
Collapse
Affiliation(s)
- Srinivas Nallandhighal
- Division of Infectious Diseases, Department of Medicine, Indiana University School of Medicine, Indianapolis
| | - Gregory S Park
- Division of Global Pediatrics, Department of Pediatrics, University of Minnesota Medical School, Minneapolis
| | - Yen-Yi Ho
- Department of Statistics, College of Arts and Sciences, University of South Carolina, Columbia
| | - Robert O Opoka
- Department of Paediatrics and Child Health, Makerere University, Kampala, Uganda
| | - Chandy C John
- Division of Infectious Diseases, Department of Medicine, Indiana University School of Medicine, Indianapolis.,Division of Global Pediatrics, Department of Pediatrics, University of Minnesota Medical School, Minneapolis.,Ryan White Center for Pediatric Infectious Disease and Global Health, Indiana University School of Medicine, Indianapolis
| | - Tuan M Tran
- Division of Infectious Diseases, Department of Medicine, Indiana University School of Medicine, Indianapolis.,Ryan White Center for Pediatric Infectious Disease and Global Health, Indiana University School of Medicine, Indianapolis
| |
Collapse
|
30
|
Tran TM, Crompton PD. Decoding the complexities of human malaria through systems immunology. Immunol Rev 2019; 293:144-162. [PMID: 31680289 DOI: 10.1111/imr.12817] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 09/27/2019] [Accepted: 09/30/2019] [Indexed: 12/18/2022]
Abstract
The complexity of the Plasmodium parasite and its life cycle poses a challenge to our understanding of the host immune response against malaria. Studying human immune responses during natural and experimental Plasmodium infections can enhance our understanding of malaria-protective immunity and inform the design of disease-modifying adjunctive therapies and next-generation malaria vaccines. Systems immunology can complement conventional approaches to facilitate our understanding of the complex immune response to the highly dynamic malaria parasite. In this review, recent studies that used systems-based approaches to evaluate human immune responses during natural and experimental Plasmodium falciparum and Plasmodium vivax infections as well as during immunization with candidate malaria vaccines are summarized and related to each other. The potential for next-generation technologies to address the current limitations of systems-based studies of human malaria are discussed.
Collapse
Affiliation(s)
- Tuan M Tran
- Division of Infectious Diseases, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.,Ryan White Center for Pediatric Infectious Disease and Global Health, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA.,Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Peter D Crompton
- Malaria Infection Biology and Immunity Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD, USA
| |
Collapse
|
31
|
Kumar R, Loughland JR, Ng SS, Boyle MJ, Engwerda CR. The regulation of CD4
+
T cells during malaria. Immunol Rev 2019; 293:70-87. [DOI: 10.1111/imr.12804] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 09/04/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Rajiv Kumar
- Centre of Experimental Medicine and Surgery Institute of Medical Sciences Banaras Hindu University Varanasi UP India
- Department of Medicine Institute of Medical Sciences Banaras Hindu University Varanasi UP India
| | - Jessica R. Loughland
- Human Malaria Immunology Laboratory QIMR Berghofer Medical Research Institute Brisbane Australia
| | - Susanna S. Ng
- Immunology and Infection Laboratory QIMR Berghofer Medical Research Institute Brisbane Australia
| | - Michelle J. Boyle
- Human Malaria Immunology Laboratory QIMR Berghofer Medical Research Institute Brisbane Australia
| | - Christian R. Engwerda
- Immunology and Infection Laboratory QIMR Berghofer Medical Research Institute Brisbane Australia
| |
Collapse
|
32
|
Antonelli LR, Junqueira C, Vinetz JM, Golenbock DT, Ferreira MU, Gazzinelli RT. The immunology of Plasmodium vivax malaria. Immunol Rev 2019; 293:163-189. [PMID: 31642531 DOI: 10.1111/imr.12816] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 09/10/2019] [Indexed: 12/13/2022]
Abstract
Plasmodium vivax infection, the predominant cause of malaria in Asia and Latin America, affects ~14 million individuals annually, with considerable adverse effects on wellbeing and socioeconomic development. A clinical hallmark of Plasmodium infection, the paroxysm, is driven by pyrogenic cytokines produced during the immune response. Here, we review studies on the role of specific immune cell types, cognate innate immune receptors, and inflammatory cytokines on parasite control and disease symptoms. This review also summarizes studies on recurrent infections in individuals living in endemic regions as well as asymptomatic infections, a serious barrier to eliminating this disease. We propose potential mechanisms behind these repeated and subclinical infections, such as poor induction of immunological memory cells and inefficient T effector cells. We address the role of antibody-mediated resistance to P. vivax infection and discuss current progress in vaccine development. Finally, we review immunoregulatory mechanisms, such as inhibitory receptors, T regulatory cells, and the anti-inflammatory cytokine, IL-10, that antagonizes both innate and acquired immune responses, interfering with the development of protective immunity and parasite clearance. These studies provide new insights for the clinical management of symptomatic as well as asymptomatic individuals and the development of an efficacious vaccine for vivax malaria.
Collapse
Affiliation(s)
- Lis R Antonelli
- Instituto de Pesquisas Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
| | - Caroline Junqueira
- Instituto de Pesquisas Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
| | - Joseph M Vinetz
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Douglas T Golenbock
- Division of Infectious Disease and immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Marcelo U Ferreira
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Ricardo T Gazzinelli
- Instituto de Pesquisas Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil.,Division of Infectious Disease and immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA.,Plataforma de Medicina Translacional, Fundação Oswaldo Cruz, Ribeirão Preto, Brazil
| |
Collapse
|
33
|
Loiseau C, Cooper MM, Doolan DL. Deciphering host immunity to malaria using systems immunology. Immunol Rev 2019; 293:115-143. [PMID: 31608461 DOI: 10.1111/imr.12814] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 09/18/2019] [Accepted: 09/20/2019] [Indexed: 12/11/2022]
Abstract
A century of conceptual and technological advances in infectious disease research has changed the face of medicine. However, there remains a lack of effective interventions and a poor understanding of host immunity to the most significant and complex pathogens, including malaria. The development of successful interventions against such intractable diseases requires a comprehensive understanding of host-pathogen immune responses. A major advance of the past decade has been a paradigm switch in thinking from the contemporary reductionist (gene-by-gene or protein-by-protein) view to a more holistic (whole organism) view. Also, a recognition that host-pathogen immunity is composed of complex, dynamic interactions of cellular and molecular components and networks that cannot be represented by any individual component in isolation. Systems immunology integrates the field of immunology with omics technologies and computational sciences to comprehensively interrogate the immune response at a systems level. Herein, we describe the system immunology toolkit and report recent studies deploying systems-level approaches in the context of natural exposure to malaria or controlled human malaria infection. We contribute our perspective on the potential of systems immunity for the rational design and development of effective interventions to improve global public health.
Collapse
Affiliation(s)
- Claire Loiseau
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Qld, Australia
| | - Martha M Cooper
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Qld, Australia
| | - Denise L Doolan
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Qld, Australia
| |
Collapse
|
34
|
Hirako IC, Assis PA, Galvão-Filho B, Luster AD, Antonelli LR, Gazzinelli RT. Monocyte-derived dendritic cells in malaria. Curr Opin Microbiol 2019; 52:139-150. [PMID: 31542508 DOI: 10.1016/j.mib.2019.08.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 08/03/2019] [Accepted: 08/17/2019] [Indexed: 12/16/2022]
Abstract
The pathogenesis of malaria is a multifactorial syndrome associated with a deleterious inflammatory response that is responsible for many of the clinical manifestations. While dendritic cells (DCs) play a critical role in initiating acquired immunity and host resistance to infection, they also play a pathogenic role in inflammatory diseases. In our recent studies, we found in different rodent malaria models that the monocyte-derived DCs (MO-DCs) become, transiently, a main DC population in spleens and inflamed non-lymphoid organs. These studies suggest that acute infection with Plasmodium berghei promotes the differentiation of splenic monocytes into inflammatory monocytes (iMOs) and thereafter into MO-DCs that play a pathogenic role by promoting inflammation and tissue damage. The recruitment of MO-DCs to the lungs and brain are dependent on expression of CCR4 and CCR5, respectively, and expression of respective chemokine ligands in each organ. Once they reach the target organ the MO-DCs produce the CXCR3 ligands (CXCL9 and CXCL10), recruit CD8+ T cells, and produce toxic metabolites that play an important role in the development of experimental cerebral malaria (ECM) and acute respiratory distress syndrome (ARDS).
Collapse
Affiliation(s)
- Isabella C Hirako
- Fundação Oswaldo Cruz - Minas, 30190-002 Belo Horizonte, MG, Brazil; University of Massachusetts Medical School, 01605 Worcester, MA, United States
| | - Patrícia A Assis
- University of Massachusetts Medical School, 01605 Worcester, MA, United States
| | | | - Andrew D Luster
- Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Lis Rv Antonelli
- Fundação Oswaldo Cruz - Minas, 30190-002 Belo Horizonte, MG, Brazil
| | - Ricardo T Gazzinelli
- Fundação Oswaldo Cruz - Minas, 30190-002 Belo Horizonte, MG, Brazil; University of Massachusetts Medical School, 01605 Worcester, MA, United States; Plataforma de Medicina Translacional, Fundação Oswaldo Cruz, 14049-900, Ribeirão Preto, SP, Brazil.
| |
Collapse
|
35
|
Sierro F, Grau GER. The Ins and Outs of Cerebral Malaria Pathogenesis: Immunopathology, Extracellular Vesicles, Immunometabolism, and Trained Immunity. Front Immunol 2019; 10:830. [PMID: 31057552 PMCID: PMC6478768 DOI: 10.3389/fimmu.2019.00830] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 03/28/2019] [Indexed: 12/16/2022] Open
Abstract
Complications from malaria parasite infections still cost the lives of close to half a million people every year. The most severe is cerebral malaria (CM). Employing murine models of CM, autopsy results, in vitro experiments, neuroimaging and microscopic techniques, decades of research activity have investigated the development of CM immunopathology in the hope of identifying steps that could be therapeutically targeted. Yet important questions remain. This review summarizes recent findings, primarily mechanistic insights on the essential cellular and molecular players involved gained within the murine experimental cerebral malaria model. It also highlights recent developments in (a) cell-cell communication events mediated through extracellular vesicles (EVs), (b) mounting evidence for innate immune memory, leading to “trained“ increased or tolerised responses, and (c) modulation of immune cell function through metabolism, that could shed light on why some patients develop this life-threatening condition whilst many do not.
Collapse
Affiliation(s)
- Frederic Sierro
- Vascular Immunology Unit, Department of Pathology, Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia.,Human Health, Nuclear Science, Technology, and Landmark Infrastructure, Australian Nuclear Science and Technology Organisation, Sydney, NSW, Australia
| | - Georges E R Grau
- Vascular Immunology Unit, Department of Pathology, Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| |
Collapse
|
36
|
Coch C, Hommertgen B, Zillinger T, Daßler-Plenker J, Putschli B, Nastaly M, Kümmerer BM, Scheunemann JF, Schumak B, Specht S, Schlee M, Barchet W, Hoerauf A, Bartok E, Hartmann G. Human TLR8 Senses RNA From Plasmodium falciparum-Infected Red Blood Cells Which Is Uniquely Required for the IFN-γ Response in NK Cells. Front Immunol 2019; 10:371. [PMID: 30972055 PMCID: PMC6445952 DOI: 10.3389/fimmu.2019.00371] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 02/14/2019] [Indexed: 01/03/2023] Open
Abstract
During blood-stage malaria, the innate immune system initiates the production of pro-inflammatory cytokines, including IFN-γ, that are critical to host defense and responsible for severe disease. Nonetheless, the innate immune pathways activated during this process in human malaria remain poorly understood. Here, we identify TLR8 as an essential sensor of Plasmodium falciparum-infected red blood cells (iRBC). In human immune cells, iRBC and RNA purified from iRBC were detected by TLR8 but not TLR7 leading to IFN-γ induction in NK cells. While TLR7 and 9 have been shown to lead to IFN-γ in mice, our data demonstrate that TLR8 was the only TLR capable of inducing IFN-γ release in human immune cells. This unique capacity was mediated by the release of IL-12p70 and bioactive IL-18 from monocytes, the latter via a hitherto undescribed pathway. Altogether, our data are the first reported activation of TLR8 by protozoan RNA and demonstrate both the critical role of TLR8 in human blood-stage malaria and its unique functionality in the human immune system. Moreover, our study offers important evidence that mouse models alone may not be sufficient to describe the human innate immune response to malaria.
Collapse
Affiliation(s)
- Christoph Coch
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany.,German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| | - Benjamin Hommertgen
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Thomas Zillinger
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Juliane Daßler-Plenker
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Bastian Putschli
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Maximilian Nastaly
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | | | - Johanna F Scheunemann
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany
| | - Beatrix Schumak
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany
| | - Sabine Specht
- Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany
| | - Martin Schlee
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Winfried Barchet
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany.,German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| | - Achim Hoerauf
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany.,Institute of Medical Microbiology, Immunology and Parasitology (IMMIP), University Hospital Bonn, Bonn, Germany
| | - Eva Bartok
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Gunther Hartmann
- Department of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany.,German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| |
Collapse
|
37
|
Barboza R, Hasenkamp L, Barateiro A, Murillo O, Peixoto EPM, Lima FA, Reis AS, Gonçalves LA, Epiphanio S, Marinho CRF. Fetal-Derived MyD88 Signaling Contributes to Poor Pregnancy Outcomes During Gestational Malaria. Front Microbiol 2019; 10:68. [PMID: 30761111 PMCID: PMC6362412 DOI: 10.3389/fmicb.2019.00068] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 01/15/2019] [Indexed: 12/17/2022] Open
Abstract
Placental malaria (PM) remains a severe public health problem in areas of high malaria transmission. Despite the efforts to prevent infection poor outcomes in Plasmodium endemic areas, there is still a considerable number of preterm births and newborns with low birth weight resulting from PM. Although local inflammation triggered in response to malaria is considered crucial in inducing placental damage, little is known about the differential influence of maternal and fetal immune responses to the disease progression. Therefore, using a PM mouse model, we sought to determine the contribution of maternal and fetal innate immune responses to PM development. For this, we conducted a series of cross-breeding experiments between mice that had differential expression of the MyD88 adaptor protein to obtain mother and correspondent fetuses with distinct genetic backgrounds. By evaluating fetal weight and placental vascular spaces, we have shown that the expression of MyD88 in fetal tissue has a significant impact on PM outcomes. Our results highlighted the existence of a distinct contribution of maternal and fetal immune responses to PM onset. Thus, contributing to the understanding of how inflammatory processes lead to the dysregulation of placental homeostasis ultimately impairing fetal development.
Collapse
Affiliation(s)
- Renato Barboza
- Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, Brazil
| | - Lutero Hasenkamp
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - André Barateiro
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Oscar Murillo
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Erika Paula Machado Peixoto
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Flávia Afonso Lima
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Aramys Silva Reis
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Lígia Antunes Gonçalves
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Sabrina Epiphanio
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil
| | - Claudio R F Marinho
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| |
Collapse
|
38
|
Cassin-Sackett L, Callicrate TE, Fleischer RC. Parallel evolution of gene classes, but not genes: Evidence from Hawai'ian honeycreeper populations exposed to avian malaria. Mol Ecol 2018; 28:568-583. [PMID: 30298567 DOI: 10.1111/mec.14891] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 10/14/2018] [Accepted: 10/19/2018] [Indexed: 12/29/2022]
Abstract
Adaptation in nature is ubiquitous, yet characterizing its genomic basis is difficult because population demographics cause correlations with nonadaptive loci. Introduction events provide opportunities to observe adaptation over known spatial and temporal scales, facilitating the identification of genes involved in adaptation. The pathogen causing avian malaria, Plasmodium relictum, was introduced to Hawai'i in the 1930s and elicited extinctions and precipitous population declines in native honeycreepers. After a sharp initial population decline, the Hawai'i 'amakihi (Chlorodrepanis virens) has evolved tolerance to the parasite at low elevations where P. relictum exists, and can sustain infection without major fitness consequences. High-elevation, unexposed populations of 'amakihi display little to no tolerance. To explore the genomic basis of adaptation to P. relictum in low-elevation 'amakihi, we genotyped 125 'amakihi from the island of Hawai'i via hybridization capture to 40,000 oligonucleotide baits containing SNPs and used the reference 'amakihi genome to identify genes potentially under selection from malaria. We tested for outlier loci between low- and high-elevation population pairs and identified loci with signatures of selection within low-elevation populations. In some cases, genes commonly involved in the immune response (e.g., major histocompatibility complex) were associated with malaria presence in the population. We also detected several novel candidate loci that may be implicated in surviving malaria infection (e.g., beta-defensin, glycoproteins and interleukin-related genes). Our results suggest that rapid adaptation to pathogens may occur through changes in different immune genes, but in the same classes of genes, across populations.
Collapse
Affiliation(s)
- Loren Cassin-Sackett
- Center for Conservation Genomics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia.,Department of Integrative Biology, University of South Florida, Tampa, Florida
| | - Taylor E Callicrate
- Center for Conservation Genomics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia.,Species Conservation Toolkit Initiative, Department of Conservation Science, Chicago Zoological Society, Brookfield, Illinois
| | - Robert C Fleischer
- Center for Conservation Genomics, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, District of Columbia
| |
Collapse
|
39
|
Chakraborty B, Mondal P, Gajendra P, Mitra M, Das C, Sengupta S. Deciphering genetic regulation of CD14 by SP1 through characterization of peripheral blood mononuclear transcriptome of P. faiciparum and P. vivax infected malaria patients. EBioMedicine 2018; 37:442-452. [PMID: 30337251 PMCID: PMC6286629 DOI: 10.1016/j.ebiom.2018.09.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/20/2018] [Accepted: 09/26/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Plasmodium falciparum and Plasmodium vivax are two major parasites responsible for malaria which remains a threat to almost 50% of world's population despite decade-long eradication program. One possible reason behind this conundrum is that the bases of clinical variability in malaria caused by either species are complex and poorly understood. METHODS Whole-genome transcriptome was analyzed to identify the active and predominant pathways in the PBMC of P. falciparum and P. vivax infected malaria patients. Deregulated genes were identified and annotated using R Bioconductor and DAVID/KEGG respectively. Genetic and functional regulation of CD14, a prioritized candidate, were established by quantitative RT-PCR, genotyping using RFLP and resequencing, mapping of transcription factor binding using CONSITE and TFBIND, dual luciferase assay, western blot analysis, RNAi- mediated gene knockdown and chromatin-immunoprecipation. FINDINGS The study highlighted that deregulation of host immune and inflammatory genes particularly CD14 as a key event in P. falciparum malaria. An abundance of allele-C of rs5744454, located in CD14 promoter, in severe malaria motivated us to establish an allele-specific regulation of CD14 by SP1. An enhancement of SP1 and CD14 expression was observed in artemisinin treated human monocyte cell line. INTERPRETATION Our data not only reinstates that CD14 of TLR pathway plays a predominant role in P. falciparum malaria, it establishes a functional basis for genetic association of rs5744454 with P. falciparum severe malaria by demonstrating a cis-regulatory role of this promoter polymorphism. Moreover, the study points towards a novel pharmacogenetic aspect of artemisinin-based anti-malarial therapy. FUND: DST-SERB, Govt. of India, SR/SO/HS-0056/2013.
Collapse
Affiliation(s)
- Bijurica Chakraborty
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, West Bengal, India
| | - Payel Mondal
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, West Bengal, India
| | - Pragya Gajendra
- School of Studies in Anthropology, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Mitashree Mitra
- School of Studies in Anthropology, Pt. Ravishankar Shukla University, Raipur 492010, Chhattisgarh, India
| | - Chandrima Das
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, West Bengal, India
| | - Sanghamitra Sengupta
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, West Bengal, India.
| |
Collapse
|
40
|
Xia L, Wu J, Pattaradilokrat S, Tumas K, He X, Peng YC, Huang R, Myers TG, Long CA, Wang R, Su XZ. Detection of host pathways universally inhibited after Plasmodium yoelii infection for immune intervention. Sci Rep 2018; 8:15280. [PMID: 30327482 PMCID: PMC6191451 DOI: 10.1038/s41598-018-33599-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/26/2018] [Indexed: 12/16/2022] Open
Abstract
Malaria is a disease with diverse symptoms depending on host immune status and pathogenicity of Plasmodium parasites. The continuous parasite growth within a host suggests mechanisms of immune evasion by the parasite and/or immune inhibition in response to infection. To identify pathways commonly inhibited after malaria infection, we infected C57BL/6 mice with four Plasmodium yoelii strains causing different disease phenotypes and 24 progeny of a genetic cross. mRNAs from mouse spleens day 1 and/or day 4 post infection (p.i.) were hybridized to a mouse microarray to identify activated or inhibited pathways, upstream regulators, and host genes playing an important role in malaria infection. Strong interferon responses were observed after infection with the N67 strain, whereas initial inhibition and later activation of hematopoietic pathways were found after infection with 17XNL parasite, showing unique responses to individual parasite strains. Inhibitions of pathways such as Th1 activation, dendritic cell (DC) maturation, and NFAT immune regulation were observed in mice infected with all the parasite strains day 4 p.i., suggesting universally inhibited immune pathways. As a proof of principle, treatment of N67-infected mice with antibodies against T cell receptors OX40 or CD28 to activate the inhibited pathways enhanced host survival. Controlled activation of these pathways may provide important strategies for better disease management and for developing an effective vaccine.
Collapse
Affiliation(s)
- Lu Xia
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA.,State Key Laboratory of Medical Genetics, Xiangya School of Medicine, Central South University, Changsha, Hunan, 410078, The People's Republic of China
| | - Jian Wu
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Sittiporn Pattaradilokrat
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA.,Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Keyla Tumas
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Xiao He
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Yu-Chih Peng
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Ruili Huang
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Timothy G Myers
- Genomic Technologies Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Carole A Long
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA
| | - Rongfu Wang
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, 77030, USA
| | - Xin-Zhuan Su
- Malaria Functional Genomics Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, 20892-8132, USA.
| |
Collapse
|
41
|
Arama C, Quin JE, Kouriba B, Östlund Farrants AK, Troye-Blomberg M, Doumbo OK. Epigenetics and Malaria Susceptibility/Protection: A Missing Piece of the Puzzle. Front Immunol 2018; 9:1733. [PMID: 30158923 PMCID: PMC6104485 DOI: 10.3389/fimmu.2018.01733] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 07/12/2018] [Indexed: 12/22/2022] Open
Abstract
A better understanding of stable changes in regulation of gene expression that result from epigenetic events is of great relevance in the development of strategies to prevent and treat infectious diseases. Histone modification and DNA methylation are key epigenetic mechanisms that can be regarded as marks, which ensure an accurate transmission of the chromatin states and gene expression profiles over generations of cells. There is an increasing list of these modifications, and the complexity of their action is just beginning to be understood. It is clear that the epigenetic landscape plays a fundamental role in most biological processes that involve the manipulation and expression of DNA. Although the molecular mechanism of gene regulation is relatively well understood, the hierarchical order of events and dependencies that lead to protection against infection remain largely unknown. In this review, we propose that host epigenetics is an essential, though relatively under studied, factor in the protection or susceptibility to malaria.
Collapse
Affiliation(s)
- Charles Arama
- Malaria Research and Training Centre, Department of Epidemiology of Parasitic Diseases, International Center of Excellence in Research, University of Sciences, Technique and Technology of Bamako, Bamako, Mali
| | - Jaclyn E Quin
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Bourèma Kouriba
- Malaria Research and Training Centre, Department of Epidemiology of Parasitic Diseases, International Center of Excellence in Research, University of Sciences, Technique and Technology of Bamako, Bamako, Mali
| | | | - Marita Troye-Blomberg
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Ogobara K Doumbo
- Malaria Research and Training Centre, Department of Epidemiology of Parasitic Diseases, International Center of Excellence in Research, University of Sciences, Technique and Technology of Bamako, Bamako, Mali
| |
Collapse
|
42
|
Differential Gene Expression Profile of Human Neutrophils Cultured with Plasmodium falciparum-Parasitized Erythrocytes. J Immunol Res 2018; 2018:6709424. [PMID: 30069491 PMCID: PMC6057315 DOI: 10.1155/2018/6709424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/08/2018] [Accepted: 05/15/2018] [Indexed: 11/17/2022] Open
Abstract
Neutrophils (PMNs) are the most abundant cellular component of our innate immune system, where they play central roles in the pathogenesis of and resistance to a broad range of diseases. However, their roles in malarial infection remain poorly understood. Therefore, we examined the transcriptional gene profile of human PMNs in response to Plasmodium falciparum-parasitized erythrocytes (iRBCs) by using oligonucleotide microarrays. Results revealed that PMNs induced a broad and vigorous set of changes in gene expression in response to malarial parasites, represented by 118 upregulated and 216 downregulated genes. The transcriptional response was characterized by the upregulation of numerous genes encoding multiple surface receptors, proteins involved in signal transduction pathways, and defense response proteins. This response included a number of genes which are known to be involved in the pathogenesis of malaria and other inflammatory diseases. Gene enrichment analysis suggested that the biological pathways involved in the PMN responses to the iRBCs included insulin receptor, Jak-STAT signaling pathway, mitogen-activated protein kinase (MAPK), and interleukin and interferon-gamma (IFN-γ) signaling pathways. The current study provides fundamental knowledge on the molecular responses of neutrophils to malarial parasites, which may aid in the discovery of novel therapeutic interventions.
Collapse
|
43
|
Hirako IC, Assis PA, Hojo-Souza NS, Reed G, Nakaya H, Golenbock DT, Coimbra RS, Gazzinelli RT. Daily Rhythms of TNFα Expression and Food Intake Regulate Synchrony of Plasmodium Stages with the Host Circadian Cycle. Cell Host Microbe 2018; 23:796-808.e6. [PMID: 29805094 PMCID: PMC6014587 DOI: 10.1016/j.chom.2018.04.016] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/14/2018] [Accepted: 04/12/2018] [Indexed: 12/26/2022]
Abstract
The Plasmodium cell cycle, wherein millions of parasites differentiate and proliferate, occurs in synchrony with the vertebrate host's circadian cycle. The underlying mechanisms are unknown. Here we addressed this question in a mouse model of Plasmodium chabaudi infection. Inflammatory gene expression and carbohydrate metabolism are both enhanced in interferon-γ (IFNγ)-primed leukocytes and liver cells from P. chabaudi-infected mice. Tumor necrosis factor α (TNFα) expression oscillates across the host circadian cycle, and increased TNFα correlates with hypoglycemia and a higher frequency of non-replicative ring forms of trophozoites. Conversely, parasites proliferate and acquire biomass during food intake by the host. Importantly, cyclic hypoglycemia is attenuated and synchronization of P. chabaudi stages is disrupted in IFNγ-/-, TNF receptor-/-, or diabetic mice. Hence, the daily rhythm of systemic TNFα production and host food intake set the pace for Plasmodium synchronization with the host's circadian cycle. This mechanism indicates that Plasmodium parasites take advantage of the host's feeding habits.
Collapse
Affiliation(s)
- Isabella Cristina Hirako
- Laboratory of Immunopathology, Fundação Oswaldo Cruz - Minas, Belo Horizonte, Minas Gerais 30190-002, Brazil
- Division of Infectious Diseases and Immunology – University of Massachusetts Medical School, Worcester, Massachusetts 01605-4321, USA
| | - Patrícia Aparecida Assis
- Division of Infectious Diseases and Immunology – University of Massachusetts Medical School, Worcester, Massachusetts 01605-4321, USA
| | - Natália Satchiko Hojo-Souza
- Laboratory of Immunopathology, Fundação Oswaldo Cruz - Minas, Belo Horizonte, Minas Gerais 30190-002, Brazil
| | - George Reed
- Division of Preventive and Behavioral Medicine – University of Massachusetts Medical School, Worcester, Massachusetts 01605-4321, USA
| | - Helder Nakaya
- Escola de Ciências Farmacêuticas – Universidade de São Paulo, São Paulo 05508-000, Brazil
| | - Douglas Taylor Golenbock
- Laboratory of Immunopathology, Fundação Oswaldo Cruz - Minas, Belo Horizonte, Minas Gerais 30190-002, Brazil
- Division of Infectious Diseases and Immunology – University of Massachusetts Medical School, Worcester, Massachusetts 01605-4321, USA
| | - Roney Santos Coimbra
- Laboratory of Immunopathology, Fundação Oswaldo Cruz - Minas, Belo Horizonte, Minas Gerais 30190-002, Brazil
| | - Ricardo Tostes Gazzinelli
- Laboratory of Immunopathology, Fundação Oswaldo Cruz - Minas, Belo Horizonte, Minas Gerais 30190-002, Brazil
- Division of Infectious Diseases and Immunology – University of Massachusetts Medical School, Worcester, Massachusetts 01605-4321, USA
- Plataforma de Medicina Translacional, Fundação Oswaldo Cruz/Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto 14049-900, São Paulo, Brazil
| |
Collapse
|
44
|
Lee HJ, Georgiadou A, Otto TD, Levin M, Coin LJ, Conway DJ, Cunnington AJ. Transcriptomic Studies of Malaria: a Paradigm for Investigation of Systemic Host-Pathogen Interactions. Microbiol Mol Biol Rev 2018; 82:e00071-17. [PMID: 29695497 PMCID: PMC5968457 DOI: 10.1128/mmbr.00071-17] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Transcriptomics, the analysis of genome-wide RNA expression, is a common approach to investigate host and pathogen processes in infectious diseases. Technical and bioinformatic advances have permitted increasingly thorough analyses of the association of RNA expression with fundamental biology, immunity, pathogenesis, diagnosis, and prognosis. Transcriptomic approaches can now be used to realize a previously unattainable goal, the simultaneous study of RNA expression in host and pathogen, in order to better understand their interactions. This exciting prospect is not without challenges, especially as focus moves from interactions in vitro under tightly controlled conditions to tissue- and systems-level interactions in animal models and natural and experimental infections in humans. Here we review the contribution of transcriptomic studies to the understanding of malaria, a parasitic disease which has exerted a major influence on human evolution and continues to cause a huge global burden of disease. We consider malaria a paradigm for the transcriptomic assessment of systemic host-pathogen interactions in humans, because much of the direct host-pathogen interaction occurs within the blood, a readily sampled compartment of the body. We illustrate lessons learned from transcriptomic studies of malaria and how these lessons may guide studies of host-pathogen interactions in other infectious diseases. We propose that the potential of transcriptomic studies to improve the understanding of malaria as a disease remains partly untapped because of limitations in study design rather than as a consequence of technological constraints. Further advances will require the integration of transcriptomic data with analytical approaches from other scientific disciplines, including epidemiology and mathematical modeling.
Collapse
Affiliation(s)
- Hyun Jae Lee
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | | | - Thomas D Otto
- Centre of Immunobiology, University of Glasgow, Glasgow, United Kingdom
| | - Michael Levin
- Section of Paediatrics, Imperial College, London, United Kingdom
| | - Lachlan J Coin
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - David J Conway
- Department of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | |
Collapse
|
45
|
Kalantari P. The Emerging Role of Pattern Recognition Receptors in the Pathogenesis of Malaria. Vaccines (Basel) 2018; 6:vaccines6010013. [PMID: 29495555 PMCID: PMC5874654 DOI: 10.3390/vaccines6010013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/19/2018] [Accepted: 02/22/2018] [Indexed: 11/16/2022] Open
Abstract
Despite a global effort to develop an effective vaccine, malaria is still a significant health problem. Much of the pathology of malaria is immune mediated. This suggests that host immune responses have to be finely regulated. The innate immune system initiates and sets the threshold of the acquired immune response and determines the outcome of the disease. Yet, our knowledge of the regulation of innate immune responses during malaria is limited. Theoretically, inadequate activation of the innate immune system could result in unrestrained parasite growth. Conversely, hyperactivation of the innate immune system, is likely to cause excessive production of proinflammatory cytokines and severe pathology. Toll-like receptors (TLRs) have emerged as essential receptors which detect signature molecules and shape the complex host response during malaria infection. This review will highlight the mechanisms by which Plasmodium components are recognized by innate immune receptors with particular emphasis on TLRs. A thorough understanding of the complex roles of TLRs in malaria may allow the delineation of pathological versus protective host responses and enhance the efficacy of anti-malarial treatments and vaccines.
Collapse
Affiliation(s)
- Parisa Kalantari
- Department of Immunology, Tufts University School of Medicine, Boston, MA 02111, USA.
| |
Collapse
|
46
|
Tannous S, Ghanem E. A bite to fight: front-line innate immune defenses against malaria parasites. Pathog Glob Health 2018; 112:1-12. [PMID: 29376476 DOI: 10.1080/20477724.2018.1429847] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Malaria infection caused by Plasmodium parasites remains a major health burden worldwide especially in the tropics and subtropics. Plasmodium exhibits a complex life cycle whereby it undergoes a series of developmental stages in the Anopheles mosquito vector and the vertebrate human host. Malaria severity is mainly attributed to the genetic complexity of the parasite which is reflected in the sophisticated mechanisms of invasion and evasion that allow it to overcome the immune responses of both its invertebrate and vertebrate hosts. In this review, we aim to provide an updated, clear and concise summary of the literature focusing on the interactions of the vertebrate innate immune system with Plasmodium parasites, namely sporozoites, merozoites, and trophozoites. The roles of innate immune factors, both humoral and cellular, in anti-Plasmodium defense are described with particular emphasis on the contribution of key innate players including neutrophils, macrophages, and natural killer cells to the clearance of liver and blood stage parasites. A comprehensive understanding of the innate immune responses to malaria parasites remains an important goal that would dramatically help improve the design of original treatment strategies and vaccines, both of which are urgently needed to relieve the burden of malaria especially in endemic countries.
Collapse
Affiliation(s)
- Stephanie Tannous
- a Faculty of Natural and Applied Sciences, Department of Sciences , Notre Dame University , Louaize , Lebanon
| | - Esther Ghanem
- a Faculty of Natural and Applied Sciences, Department of Sciences , Notre Dame University , Louaize , Lebanon
| |
Collapse
|
47
|
Schrum JE, Crabtree JN, Dobbs KR, Kiritsy MC, Reed GW, Gazzinelli RT, Netea MG, Kazura JW, Dent AE, Fitzgerald KA, Golenbock DT. Cutting Edge: Plasmodium falciparum Induces Trained Innate Immunity. THE JOURNAL OF IMMUNOLOGY 2018; 200:1243-1248. [PMID: 29330325 DOI: 10.4049/jimmunol.1701010] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 12/04/2017] [Indexed: 11/19/2022]
Abstract
Malarial infection in naive individuals induces a robust innate immune response. In the recently described model of innate immune memory, an initial stimulus primes the innate immune system to either hyperrespond (termed training) or hyporespond (tolerance) to subsequent immune challenge. Previous work in both mice and humans demonstrated that infection with malaria can both serve as a priming stimulus and promote tolerance to subsequent infection. In this study, we demonstrate that initial stimulation with Plasmodium falciparum-infected RBCs or the malaria crystal hemozoin induced human adherent PBMCs to hyperrespond to subsequent ligation of TLR2. This hyperresponsiveness correlated with increased H3K4me3 at important immunometabolic promoters, and these epigenetic modifications were also seen in Kenyan children naturally infected with malaria. However, the use of epigenetic and metabolic inhibitors indicated that the induction of trained immunity by malaria and its ligands may occur via a previously unrecognized mechanism(s).
Collapse
Affiliation(s)
- Jacob E Schrum
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605
| | - Juliet N Crabtree
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605
| | - Katherine R Dobbs
- Department of Pediatrics, Rainbow Babies and Children's Hospital, Cleveland, OH 44106
| | - Michael C Kiritsy
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605
| | - George W Reed
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605.,Corrona, LLC, Southborough, MA 01772
| | - Ricardo T Gazzinelli
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605.,Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 41270-901, Brazil.,Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais 30190-002, Brazil
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands; and
| | - James W Kazura
- Center for Global Health and Disease, Case Western Reserve University, Cleveland, OH 44106
| | - Arlene E Dent
- Department of Pediatrics, Rainbow Babies and Children's Hospital, Cleveland, OH 44106.,Center for Global Health and Disease, Case Western Reserve University, Cleveland, OH 44106
| | | | - Douglas T Golenbock
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605;
| |
Collapse
|
48
|
Dobbs KR, Embury P, Vulule J, Odada PS, Rosa BA, Mitreva M, Kazura JW, Dent AE. Monocyte dysregulation and systemic inflammation during pediatric falciparum malaria. JCI Insight 2017; 2:95352. [PMID: 28931756 DOI: 10.1172/jci.insight.95352] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 08/16/2017] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Inflammation and monocytes are thought to be important to human malaria pathogenesis. However, the relationship of inflammation and various monocyte functions to acute malaria, recovery from acute malaria, and asymptomatic parasitemia in endemic populations is poorly understood. METHODS We evaluated plasma cytokine levels, monocyte subsets, monocyte functional responses, and monocyte inflammatory transcriptional profiles of 1- to 10-year-old Kenyan children at the time of presentation with acute uncomplicated malaria and at recovery 6 weeks later; these results were compared with analogous data from asymptomatic children and adults in the same community. RESULTS Acute malaria was marked by elevated levels of proinflammatory and regulatory cytokines and expansion of the inflammatory "intermediate" monocyte subset that returned to levels of healthy asymptomatic children 6 weeks later. Monocytes displayed activated phenotypes during acute malaria, with changes in surface expression of markers important to innate and adaptive immunity. Functionally, acute malaria monocytes and monocytes from asymptomatic infected children had impaired phagocytosis of P. falciparum-infected erythrocytes relative to asymptomatic children with no blood-stage infection. Monocytes from both acute malaria and recovery time points displayed strong and equivalent cytokine responsiveness to innate immune agonists that were independent of infection status. Monocyte transcriptional profiles revealed regulated and balanced proinflammatory and antiinflammatory and altered phagocytosis gene expression patterns distinct from malaria-naive monocytes. CONCLUSION These observations provide insights into monocyte functions and the innate immune response during uncomplicated malaria and suggest that asymptomatic parasitemia in children is not clinically benign. FUNDING Support for this work was provided by NIH/National Institute of Allergy and Infectious Diseases (R01AI095192-05), the Burroughs Wellcome Fund/American Society of Tropical Medicine and Hygiene, and the Rainbow Babies & Children's Foundation.
Collapse
Affiliation(s)
- Katherine R Dobbs
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio, USA.,Division of Pediatric Infectious Diseases, University Hospitals Rainbow Babies and Children's Hospital, Cleveland, Ohio, USA
| | - Paula Embury
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio, USA
| | - John Vulule
- Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Peter S Odada
- Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - Bruce A Rosa
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Makedonka Mitreva
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, Missouri, USA
| | - James W Kazura
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio, USA
| | - Arlene E Dent
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio, USA.,Division of Pediatric Infectious Diseases, University Hospitals Rainbow Babies and Children's Hospital, Cleveland, Ohio, USA
| |
Collapse
|
49
|
TLR4-Mediated Placental Pathology and Pregnancy Outcome in Experimental Malaria. Sci Rep 2017; 7:8623. [PMID: 28819109 PMCID: PMC5561130 DOI: 10.1038/s41598-017-08299-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 07/06/2017] [Indexed: 12/13/2022] Open
Abstract
Malaria-associate pregnancy has a significant impact on infant morbidity and mortality. The detrimental effects of malaria infection during pregnancy have been shown to correlate with immune activation in the placental tissue. Herein we sought to evaluate the effect of Toll-like receptors (TLRs) activation on placental malaria (PM) development by using the Plasmodium berghei NK65GFP infection model. We observed that activation of the innate immune system by parasites leads to PM due to local inflammation. We identified TLR4 activation as the main pathway involved in the inflammatory process in the placental tissue since the absence of functional TLR4 in mice leads to a decrease in the pro-inflammatory responses, which resulted in an improved pregnancy outcome. Additionally, a similar result was obtained when infected pregnant mice were treated with IAXO-101, a TLR4/CD14 blocker. Together, this study illustrates the importance of TLR4 signalling for the generation of the severe inflammatory response involved in PM pathogenesis. Therefore, our results implicate that TLR4 blockage could be a potential candidate for therapeutic interventions to reduce malaria-induced pathology both in the mother and the fetus.
Collapse
|
50
|
Dhangadamajhi G, Kar A, Rout R, Dhangadamajhi P. A meta-analysis of TLR4 and TLR9 SNPs implicated in severe malaria. Rev Soc Bras Med Trop 2017; 50:153-160. [DOI: 10.1590/0037-8682-0475-2016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 02/23/2017] [Indexed: 12/12/2022] Open
|