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Matini M, Amini R, Foroughi-Parvar F. Glia Maturation Factor Beta: A Novel Neuro-Impairment Prediction Factor in Toxoplasmosis. IRANIAN JOURNAL OF PUBLIC HEALTH 2024; 53:1200-1208. [PMID: 38912132 PMCID: PMC11188646 DOI: 10.18502/ijph.v53i5.15602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/11/2023] [Indexed: 06/25/2024]
Abstract
Background Toxoplasma gondii, a neurotropic protozoan, infects up one to third of the world population. The parasite can invade a wide variety of nucleated cells but preferably glial cells. Glia maturation factor β (GMFβ), a 17KD protein expressed at high levels in the central nervous system is predominantly related to neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and Multiple sclerosis. We aimed to determine the expression level of GMFβ and its relation to other pro-inflammatory factors (IL33, SDF1, and CCL2) on T. gondii infected human neuroblastoma cell line. Methods The human neuroblastoma (SK_NMC C535) cell line was infected by 5×106 (1:1 ratio). The supernatant was collected after cell lysis and centrifugation. Total RNA was extracted using the Yekta Tajhiz RNA extraction kit. cDNA was synthesized based on RevertAid First Strand cDNA Synthesis Kit manufacturer's protocol (Parstous, cDNA synthesis kit, Iran). The specificity of each primer pair (GMFβ, IL33, SDF1, and CCL2) was provided by NCBI BLAST. Gene expression level was measured using Real-Time PCR. All experiments were conducted at the Hamadan University of Medical Sciences, western Iran in 2022. Results The GMFβ increased significantly up to 1.35-fold (P=0.007). The increase in GMFβ expression in neuroblastoma cells was consistent with the increase in pro-inflammatory factors (CCL2 (0.47), IL33 (0.152) and, SDF1 (1.33)). Conclusion GMFβ upregulation can be a novel indicator of the destruction of nerve cells.
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Affiliation(s)
- Mohammad Matini
- Department of Medical Parasitology and Mycology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Razieh Amini
- Department of Molecular Medicine and Human Genetics, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Faeze Foroughi-Parvar
- Department of Medical Parasitology and Mycology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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Chen Y, Wang J, Zhou N, Fang Q, Cai H, Du Z, An R, Liu D, Chen X, Wang X, Li F, Yan Q, Chen L, Du J. Protozoan-Derived Cytokine-Transgenic Macrophages Reverse Hepatic Fibrosis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308750. [PMID: 38247166 PMCID: PMC10987136 DOI: 10.1002/advs.202308750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/01/2024] [Indexed: 01/23/2024]
Abstract
Macrophage therapy for liver fibrosis is on the cusp of meaningful clinical utility. Due to the heterogeneities of macrophages, it is urgent to develop safer macrophages with a more stable and defined phenotype for the treatment of liver fibrosis. Herein, a new macrophage-based immunotherapy using macrophages stably expressing a pivotal cytokine from Toxoplasma gondii, a parasite that infects ≈ 2 billion people is developed. It is found that Toxoplasma gondii macrophage migration inhibitory factor-transgenic macrophage (Mφtgmif) shows stable fibrinolysis and strong chemotactic capacity. Mφtgmif effectively ameliorates liver fibrosis and deactivates aHSCs by recruiting Ly6Chi macrophages via paracrine CCL2 and polarizing them into the restorative Ly6Clo macrophage through the secretion of CX3CL1. Remarkably, Mφtgmif exhibits even higher chemotactic potential, lower grade of inflammation, and better therapeutic effects than LPS/IFN-γ-treated macrophages, making macrophage-based immune therapy more efficient and safer. Mechanistically, TgMIF promotes CCL2 expression by activating the ERK/HMGB1/NF-κB pathway, and this event is associated with recruiting endogenous macrophages into the fibrosis liver. The findings do not merely identify viable immunotherapy for liver fibrosis but also suggest a therapeutic strategy based on the evolutionarily designed immunomodulator to treat human diseases by modifying the immune microenvironment.
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Affiliation(s)
- Ying Chen
- Department of Biochemistry and Molecular BiologyResearch Center for Infectious DiseasesSchool of Basic Medical SciencesAnhui Medical UniversityHefei230032China
- The Provincial Key Laboratory of Zoonoses of High Institutions in AnhuiAnhui Medical UniversityHefei230032China
- School of NursingAnhui Medical UniversityHefei230032China
| | - Jie Wang
- Department of Biochemistry and Molecular BiologyResearch Center for Infectious DiseasesSchool of Basic Medical SciencesAnhui Medical UniversityHefei230032China
- The Provincial Key Laboratory of Zoonoses of High Institutions in AnhuiAnhui Medical UniversityHefei230032China
| | - Nan Zhou
- Department of Biochemistry and Molecular BiologyResearch Center for Infectious DiseasesSchool of Basic Medical SciencesAnhui Medical UniversityHefei230032China
- The Provincial Key Laboratory of Zoonoses of High Institutions in AnhuiAnhui Medical UniversityHefei230032China
| | - Qi Fang
- Department of AnesthesiologyThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
| | - Haijian Cai
- Department of Biochemistry and Molecular BiologyResearch Center for Infectious DiseasesSchool of Basic Medical SciencesAnhui Medical UniversityHefei230032China
- The Provincial Key Laboratory of Zoonoses of High Institutions in AnhuiAnhui Medical UniversityHefei230032China
| | - Zhuoran Du
- Department of Clinical MedicineWannan Medical CollegeWuhu241002China
| | - Ran An
- Department of Biochemistry and Molecular BiologyResearch Center for Infectious DiseasesSchool of Basic Medical SciencesAnhui Medical UniversityHefei230032China
- The Provincial Key Laboratory of Zoonoses of High Institutions in AnhuiAnhui Medical UniversityHefei230032China
| | - Deng Liu
- Department of AnesthesiologyThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
| | - Xuepeng Chen
- GMU‐GIBH Joint School of Life SciencesThe Guangdong‐Hong Kong‐Macau Joint Laboratory for Cell Fate Regulation and DiseasesGuangzhou National LaboratoryGuangzhou Medical UniversityGuangzhou510005China
| | - Xinxin Wang
- GMU‐GIBH Joint School of Life SciencesThe Guangdong‐Hong Kong‐Macau Joint Laboratory for Cell Fate Regulation and DiseasesGuangzhou National LaboratoryGuangzhou Medical UniversityGuangzhou510005China
| | - Fangmin Li
- Department of Biochemistry and Molecular BiologyResearch Center for Infectious DiseasesSchool of Basic Medical SciencesAnhui Medical UniversityHefei230032China
- The Provincial Key Laboratory of Zoonoses of High Institutions in AnhuiAnhui Medical UniversityHefei230032China
| | - Qi Yan
- Department of Biochemistry and Molecular BiologyResearch Center for Infectious DiseasesSchool of Basic Medical SciencesAnhui Medical UniversityHefei230032China
- The Provincial Key Laboratory of Zoonoses of High Institutions in AnhuiAnhui Medical UniversityHefei230032China
| | - Lijian Chen
- Department of AnesthesiologyThe First Affiliated Hospital of Anhui Medical UniversityHefei230032China
| | - Jian Du
- Department of Biochemistry and Molecular BiologyResearch Center for Infectious DiseasesSchool of Basic Medical SciencesAnhui Medical UniversityHefei230032China
- The Provincial Key Laboratory of Zoonoses of High Institutions in AnhuiAnhui Medical UniversityHefei230032China
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Deng C, Xu Y, Chen H, Zhu X, Huang L, Chen Z, Xu H, Song G, Lu J, Huang W, Liu R, Tang Q, Wang J. Extracellular-vesicle-packaged S100A11 from osteosarcoma cells mediates lung premetastatic niche formation by recruiting gMDSCs. Cell Rep 2024; 43:113751. [PMID: 38341855 DOI: 10.1016/j.celrep.2024.113751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 11/28/2023] [Accepted: 01/22/2024] [Indexed: 02/13/2024] Open
Abstract
The premetastatic niche (PMN) contributes to lung-specific metastatic tropism in osteosarcoma. However, the crosstalk between primary tumor cells and lung stromal cells is not clearly defined. Here, we dissect the composition of immune cells in the lung PMN and identify granulocytic myeloid-derived suppressor cell (gMDSC) infiltration as positively associated with immunosuppressive PMN formation and tumor cell colonization. Osteosarcoma-cell-derived extracellular vesicles (EVs) activate lung interstitial macrophages to initiate the influx of gMDSCs via secretion of the chemokine CXCL2. Proteomic profiling of EVs reveals that EV-packaged S100A11 stimulates the Janus kinase 2/signal transducer and activator of transcription 3 signaling pathway in macrophages by interacting with USP9X. High level of S100A11 expression or circulating gMDSCs correlates with the presentation of lung metastasis and poor prognosis in osteosarcoma patients. In summary, we identify a key role of tumor-derived EVs in lung PMN formation, providing potential strategies for monitoring or preventing lung metastasis in osteosarcoma.
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Affiliation(s)
- Chuangzhong Deng
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Yanyang Xu
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Hongmin Chen
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Xiaojun Zhu
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Lihua Huang
- State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; Administration Department of Nosocomial Infection, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Zhihao Chen
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Huaiyuan Xu
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Guohui Song
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Jinchang Lu
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Wenlin Huang
- State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Ranyi Liu
- State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China
| | - Qinglian Tang
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China.
| | - Jin Wang
- Department of Musculoskeletal Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China; State Key Laboratory of Oncology in Southern China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P.R. China.
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Martin AT, Giri S, Safronova A, Eliseeva SI, Kwok SF, Yarovinsky F. Parasite-induced IFN-γ regulates host defense via CD115 and mTOR-dependent mechanism of tissue-resident macrophage death. PLoS Pathog 2024; 20:e1011502. [PMID: 38377133 PMCID: PMC10906828 DOI: 10.1371/journal.ppat.1011502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 03/01/2024] [Accepted: 01/22/2024] [Indexed: 02/22/2024] Open
Abstract
Host resistance to a common protozoan parasite Toxoplasma gondii relies on a coordinated immune response involving multiple cell types, including macrophages. Embryonically seeded tissue-resident macrophages (TRMs) play a critical role in maintaining tissue homeostasis, but their role in parasite clearance is poorly understood. In this study, we uncovered a crucial aspect of host defense against T. gondii mediated by TRMs. Through the use of neutralizing antibodies and conditional IFN-γ receptor-deficient mice, we demonstrated that IFN-γ directly mediated the elimination of TRMs. Mechanistically, IFN-γ stimulation in vivo rendered macrophages unresponsive to macrophage colony-stimulating factor (M-CSF) and inactivated mTOR signaling by causing the shedding of CD115 (CSFR1), the receptor for M-CSF. Further experiments revealed the essential role of macrophage IFN-γ responsiveness in host resistance to T. gondii. The elimination of peritoneal TRMs emerged as an additional host defense mechanism aimed at limiting the parasite's reservoir. The identified mechanism, involving IFN-γ-induced suppression of CD115-dependent mTOR signaling in macrophages, provides insights into the adaptation of macrophage subsets during infection and highlights a crucial aspect of host defense against intracellular pathogens.
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Affiliation(s)
- Andrew T. Martin
- Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Shilpi Giri
- Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Alexandra Safronova
- Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Sophia I. Eliseeva
- Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Samantha F. Kwok
- Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Felix Yarovinsky
- Center for Vaccine Biology and Immunology, Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York, United States of America
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Yao Y, Shi T, Shu P, Zhang Y, Gu H. Toxoplasma gondii infection and brain inflammation: A two-sample mendelian randomization analysis. Heliyon 2024; 10:e24228. [PMID: 38234880 PMCID: PMC10792577 DOI: 10.1016/j.heliyon.2024.e24228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 01/04/2024] [Accepted: 01/04/2024] [Indexed: 01/19/2024] Open
Abstract
Background Toxoplasma gondii is an opportunistic parasitic protozoan that can cause highly fatal toxoplasmic encephalitis when the host immune system is compromised. However, the transition from chronic to acute infection remains poorly understood. In this study, we conducted a 180-day observation of tissue damage and inflammation in the brains of mice infected with T. gondii. Subsequently, we investigated the inflammatory factors that T. gondii infection may alter using two-sample Mendelian randomization (MR) analysis. Methods We first established a mouse model of T. gondii infection. Subsequently, the mice were euthanized, the brain tissue collected, and immunohistochemistry and hematoxylin and eosin staining performed to observe tissue damage and inflammatory conditions at various time points. Our study also included a published large-scale genome-wide association study meta-analysis that encompassed the circulating concentrations of 41 cytokines. This dataset included 8293 individuals from three independent population cohorts in Finland. Genetic association data for T. gondii were sourced from the Integrative Epidemiology Unit and European Bioinformatics Institute datasets, which included 5010 and 559 individuals of European ancestry, respectively. To assess the causal relationship between T. gondii infection and inflammatory biomarkers, we applied a two-sample MR. Results Inflammation and damage resulting from T. gondii infection varied among the distinct regions of the mouse brain. Based on the MR analysis results, three inflammatory biomarkers were chemically assigned to Chemokines and Others, including IP10 (interferon gamma inducible protein-10), MCP1 (monocyte chemoattractant protein-1), and TRAIL (TNF-related apoptosis-inducing ligand). Conclusion Our study commenced with the assessment of tissue damage and progression of inflammation in distinct regions of the mouse brain after T. gondii infection. Subsequently, using MR analysis, we detected potential alterations in inflammatory factors associated with this infection. These findings offer valuable insights into the mechanisms underlying toxoplasmic encephalitis and suggest directions for the prevention and treatment of T. gondii infections.
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Affiliation(s)
- Yong Yao
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- College of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Taiyu Shi
- First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Panyin Shu
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, China
| | - Yixin Zhang
- First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Hao Gu
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
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Orchanian SB, Still K, Harris TH, Lodoen MB. Deficiency in astrocyte CCL2 production reduces neuroimmune control of Toxoplasma gondii infection. PLoS Pathog 2024; 20:e1011710. [PMID: 38206985 PMCID: PMC10807779 DOI: 10.1371/journal.ppat.1011710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 01/24/2024] [Accepted: 09/25/2023] [Indexed: 01/13/2024] Open
Abstract
Toxoplasma gondii is an obligate intracellular parasite that infects one-third of the world's human population and establishes infection in the brain. Cerebral immune cell infiltration is critical for controlling the parasite, but little is known about the molecular cues guiding immune cells to the brain during infection. Activated astrocytes produce CCL2, a chemokine that mediates inflammatory monocyte recruitment to tissues by binding to the CCR2 receptor. We detected elevated CCL2 production in the brains of C57BL/6J mice by 15 days after T. gondii infection. Utilizing confocal microscopy and intracellular flow cytometry, we identified microglia and brain-infiltrating myeloid cells as the main producers of CCL2 during acute infection, and CCL2 was specifically produced in regions of parasite infection in the brain. In contrast, astrocytes became the dominant CCL2 producer during chronic T. gondii infection. To determine the role of astrocyte-derived CCL2 in mobilizing immune cells to the brain and controlling T. gondii infection, we generated GFAP-Cre x CCL2fl/fl mice, in which astrocytes are deficient in CCL2 production. We observed significantly decreased immune cell recruitment and increased parasite burden in the brain during chronic, but not acute, infection of mice deficient in astrocyte CCL2 production, without an effect on peripheral immune responses. To investigate potential mechanisms explaining the reduced control of T. gondii infection, we analyzed key antimicrobial and immune players in host defense against T. gondii and detected a reduction in iNOS+ myeloid cells, and T. gondii-specific CD4+ T cells in the knockout mice. These data uncover a critical role for astrocyte-derived CCL2 in immune cell recruitment and parasite control in the brain during chronic, but not acute, T. gondii infection.
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Affiliation(s)
- Stephanie B. Orchanian
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, California, United States of America
- Institute for Immunology, University of California, Irvine, Irvine, California, United States of America
| | - Katherine Still
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Tajie H. Harris
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Melissa B. Lodoen
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, California, United States of America
- Institute for Immunology, University of California, Irvine, Irvine, California, United States of America
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Orchanian SB, Lodoen MB. Monocytes as primary defenders against Toxoplasma gondii infection. Trends Parasitol 2023; 39:837-849. [PMID: 37633758 DOI: 10.1016/j.pt.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/14/2023] [Accepted: 07/21/2023] [Indexed: 08/28/2023]
Abstract
Monocytes are recruited from the bone marrow to sites of infection where they release cytokines and chemokines, function in antimicrobial immunity, and differentiate into macrophages and dendritic cells to control infection. Although many studies have focused on monocyte-derived macrophages and dendritic cells, recent work has examined the unique roles of monocytes during infection to promote immune defense. We focus on the effector functions of monocytes during infection with the parasite Toxoplasma gondii, and discuss the signals that mobilize monocytes to sites of infection, their production of inflammatory cytokines and antimicrobial mediators, their ability to shape the adaptive immune response, and their immunoregulatory functions. Insights from other infections, including Plasmodium and Listeria are also included for comparison and context.
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Affiliation(s)
- Stephanie B Orchanian
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, California, USA; Institute for Immunology, University of California Irvine, Irvine, California, USA
| | - Melissa B Lodoen
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, California, USA; Institute for Immunology, University of California Irvine, Irvine, California, USA.
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Foreman TW, Nelson CE, Sallin MA, Kauffman KD, Sakai S, Otaizo-Carrasquero F, Myers TG, Barber DL. CD30 co-stimulation drives differentiation of protective T cells during Mycobacterium tuberculosis infection. J Exp Med 2023; 220:e20222090. [PMID: 37097292 PMCID: PMC10130742 DOI: 10.1084/jem.20222090] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/24/2023] [Accepted: 04/04/2023] [Indexed: 04/26/2023] Open
Abstract
Control of Mycobacterium tuberculosis (Mtb) infection requires generation of T cells that migrate to granulomas, complex immune structures surrounding sites of bacterial replication. Here we compared the gene expression profiles of T cells in pulmonary granulomas, bronchoalveolar lavage, and blood of Mtb-infected rhesus macaques to identify granuloma-enriched T cell genes. TNFRSF8/CD30 was among the top genes upregulated in both CD4 and CD8 T cells from granulomas. In mice, CD30 expression on CD4 T cells is required for survival of Mtb infection, and there is no major role for CD30 in protection by other cell types. Transcriptomic comparison of WT and CD30-/- CD4 T cells from the lungs of Mtb-infected mixed bone marrow chimeric mice showed that CD30 directly promotes CD4 T cell differentiation and the expression of multiple effector molecules. These results demonstrate that the CD30 co-stimulatory axis is highly upregulated on granuloma T cells and is critical for protective T cell responses against Mtb infection.
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Affiliation(s)
- Taylor W. Foreman
- T Lymphocyte Biology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Christine E. Nelson
- T Lymphocyte Biology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Michelle A. Sallin
- T Lymphocyte Biology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Keith D. Kauffman
- T Lymphocyte Biology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Shunsuke Sakai
- T Lymphocyte Biology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Francisco Otaizo-Carrasquero
- Genomic Technologies Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Timothy G. Myers
- Genomic Technologies Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Daniel L. Barber
- T Lymphocyte Biology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
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Gómez-Chávez F, Murrieta-Coxca JM, Caballero-Ortega H, Morales-Prieto DM, Markert UR. Host-pathogen interactions mediated by extracellular vesicles in Toxoplasma gondii infection during pregnancy. J Reprod Immunol 2023; 158:103957. [PMID: 37253287 DOI: 10.1016/j.jri.2023.103957] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 06/01/2023]
Abstract
Molecular communication between a pathogen and its host is crucial for a successful interplay. Extracellular vesicles (EVs) act as mediators for the delivery of molecular signals among pathogens or between pathogens and the host. Toxoplasma gondii (T. gondii), an intracellular parasite with a worldwide presence, produces EVs itself, or induces the secretion of EVs from infected host cells potentially having capacities to modulate the host immune response. T. gondii infection is particularly important during pregnancy. Depending on the gestational age at the time of infection, the parasite can be transmitted through the placenta to the fetus, causing clinical complications such as jaundice, hepatosplenomegaly, chorioretinitis, cranioencephalic abnormalities, or even death. T. gondii infection is related to a pro-inflammatory immune response in both mother and fetus, which may enhance parasite transmission, but the implication of EV signaling in this process remains unclear. In this review, we summarize the current knowledge on EV release from T. gondii and its human host cells in regard to the immunological consequences and the passage through the placenta.
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Affiliation(s)
- Fernando Gómez-Chávez
- Sección de Estudios de Posgrado e Investigación, Escuela Nacional de Medicina y Homeopatía-Instituto Politécnico Nacional, Mexico City, Mexico; Programa de Posgrado en Ciencia y Tecnología de Vacunas y Bioterapéuticos, Instituto Politécnico Nacional, Mexico City, Mexico
| | | | - Heriberto Caballero-Ortega
- Secretaría de Salud, Laboratorio de Inmunología Experimental, Instituto Nacional de Pediatría, Mexico City, Mexico
| | | | - Udo R Markert
- Placenta Lab, Department of Obstetrics, Jena University Hospital, Jena, Germany.
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10
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Matsuno SY, Pandori WJ, Lodoen MB. Capers with caspases: Toxoplasma gondii tales of inflammation and survival. Curr Opin Microbiol 2023; 72:102264. [PMID: 36791673 DOI: 10.1016/j.mib.2023.102264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/23/2022] [Accepted: 12/30/2022] [Indexed: 02/15/2023]
Abstract
Intracellular pathogens strike a delicate balance between maintaining their survival within infected cells, while also activating host defense mechanisms. Toxoplasma gondii is a protozoan parasite that initiates a variety of host signaling pathways as it invades host cells and establishes residence in a parasitophorous vacuole. Recent work has highlighted the interplay between T. gondii infection and innate immune pathways that lead to inflammation, several of which converge on caspases. This family of cysteine proteases function at the crossroads of inflammation and cell death and serve as a key target for parasite manipulation. This review focuses on the interaction of T. gondii with caspase-dependent inflammatory and cell death pathways and the role of parasite effector proteins in modulating these processes.
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Affiliation(s)
- Stephanie Y Matsuno
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92617 USA
| | - William J Pandori
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92617 USA
| | - Melissa B Lodoen
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92617 USA.
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Recent Advances in the Development of Adenovirus-Vectored Vaccines for Parasitic Infections. Pharmaceuticals (Basel) 2023; 16:ph16030334. [PMID: 36986434 PMCID: PMC10058461 DOI: 10.3390/ph16030334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/30/2023] [Accepted: 02/09/2023] [Indexed: 02/24/2023] Open
Abstract
Vaccines against parasites have lagged centuries behind those against viral and bacterial infections, despite the devastating morbidity and widespread effects of parasitic diseases across the globe. One of the greatest hurdles to parasite vaccine development has been the lack of vaccine strategies able to elicit the complex and multifaceted immune responses needed to abrogate parasitic persistence. Viral vectors, especially adenovirus (AdV) vectors, have emerged as a potential solution for complex disease targets, including HIV, tuberculosis, and parasitic diseases, to name a few. AdVs are highly immunogenic and are uniquely able to drive CD8+ T cell responses, which are known to be correlates of immunity in infections with most protozoan and some helminthic parasites. This review presents recent developments in AdV-vectored vaccines targeting five major human parasitic diseases: malaria, Chagas disease, schistosomiasis, leishmaniasis, and toxoplasmosis. Many AdV-vectored vaccines have been developed for these diseases, utilizing a wide variety of vectors, antigens, and modes of delivery. AdV-vectored vaccines are a promising approach for the historically challenging target of human parasitic diseases.
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Qiu J, Xie Y, Shao C, Shao T, Qin M, Zhang R, Liu X, Xu Z, Wang Y. Toxoplasma gondii microneme protein MIC3 induces macrophage TNF-α production and Ly6C expression via TLR11/MyD88 pathway. PLoS Negl Trop Dis 2023; 17:e0011105. [PMID: 36730424 PMCID: PMC9928027 DOI: 10.1371/journal.pntd.0011105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 02/14/2023] [Accepted: 01/16/2023] [Indexed: 02/04/2023] Open
Abstract
Toxoplasma gondii is the most successful parasite worldwide. It is of great interest to understand how T. gondii induce different immune responses in different hosts. In this study, we found that a peptide of T. gondii microneme protein MIC3 induced TNF-α production, NF-κB phosphorylation, iNOS transcription and Ly6C expression in mouse macrophage RAW264.7 cells. MyD88 inhibition, small interfering RNA against Tlr11 and CRISPR/Cas9-mediated knock-out of Tlr11 all reduced MIC3-induced TNF-α production, NF-κB phosphorylation, iNOS transcription and Ly6C expression. Additionally, we determined the location of MIC3 peptide in mouse macrophages using immunofluorescence. MIC3 could both adhere to the cell membrane of mouse macrophages and enter the cells. These results suggest that MIC3 triggered the immune responses in mouse macrophages via TLR11/MyD88/NF-κB pathway. It is known that human macrophages lacking TLR11. We predicted that the immune responses induced by MIC3 in human macrophages were significantly different from those in mouse macrophages. As expected, MIC3 peptide failed to induce TNF-α expression, iNOS expression and NF-κB phosphorylation in human THP-1 derived macrophages. MIC3 induced macrophage immune responses via TLR11. Intriguingly, the amino acid sequence of MIC3 is completely different from the well-known TLR11 ligand profilin, which generates a potent IL-12p40, TNF-α and IL-6 response. In marked contrast to profilin, MIC3 could not induce IL-12p40 expression in both mouse RAW264.7 cells and human THP-1 derived macrophages. Furthermore, the simulated tertiary structure of MIC3 peptide shows poor similarity with the crystal structure of profilin, suggesting that MIC3 might be a different ligand from profilin. These findings about MIC3 and TLR11 will provide us with important insights into the pathogenesis of toxoplasmosis and coevolution during host-parasite interaction.
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Affiliation(s)
- Jingfan Qiu
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yanci Xie
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chenlu Shao
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tianye Shao
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Min Qin
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Rong Zhang
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xinjian Liu
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhipeng Xu
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yong Wang
- Key Laboratory of Pathogen Biology of Jiangsu Province, Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, China
- * E-mail:
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13
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Frede A, Czarnewski P, Monasterio G, Tripathi KP, Bejarano DA, Ramirez Flores RO, Sorini C, Larsson L, Luo X, Geerlings L, Novella-Rausell C, Zagami C, Kuiper R, Morales RA, Castillo F, Hunt M, Mariano LL, Hu YOO, Engblom C, Lennon-Duménil AM, Mittenzwei R, Westendorf AM, Hövelmeyer N, Lundeberg J, Saez-Rodriguez J, Schlitzer A, Das S, Villablanca EJ. B cell expansion hinders the stroma-epithelium regenerative cross talk during mucosal healing. Immunity 2022; 55:2336-2351.e12. [PMID: 36462502 DOI: 10.1016/j.immuni.2022.11.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 07/14/2022] [Accepted: 10/26/2022] [Indexed: 12/05/2022]
Abstract
Therapeutic promotion of intestinal regeneration holds great promise, but defining the cellular mechanisms that influence tissue regeneration remains an unmet challenge. To gain insight into the process of mucosal healing, we longitudinally examined the immune cell composition during intestinal damage and regeneration. B cells were the dominant cell type in the healing colon, and single-cell RNA sequencing (scRNA-seq) revealed expansion of an IFN-induced B cell subset during experimental mucosal healing that predominantly located in damaged areas and associated with colitis severity. B cell depletion accelerated recovery upon injury, decreased epithelial ulceration, and enhanced gene expression programs associated with tissue remodeling. scRNA-seq from the epithelial and stromal compartments combined with spatial transcriptomics and multiplex immunostaining showed that B cells decreased interactions between stromal and epithelial cells during mucosal healing. Activated B cells disrupted the epithelial-stromal cross talk required for organoid survival. Thus, B cell expansion during injury impairs epithelial-stromal cell interactions required for mucosal healing, with implications for the treatment of IBD.
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Affiliation(s)
- Annika Frede
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Paulo Czarnewski
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - Gustavo Monasterio
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Kumar P Tripathi
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - David A Bejarano
- Quantitative Systems Biology, Life and Medical Sciences Institute (LIMES), University of Bonn, 53115 Bonn, Germany
| | | | - Chiara Sorini
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ludvig Larsson
- KTH Royal Institute of Technology Stockholm, Science for Life Laboratory, Stockholm, Sweden
| | - Xinxin Luo
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Laura Geerlings
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Claudio Novella-Rausell
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Chiara Zagami
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Raoul Kuiper
- Norwegian Veterinary Institute, Section for Aquatic Biosecurity Research, Elisabeth Stephansens vei 1, 1433 Ås, Norway; Core Facility for Morphologic Phenotype Analysis, Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Rodrigo A Morales
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Francisca Castillo
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Matthew Hunt
- Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Physiology and Pharmacology, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | | | - Yue O O Hu
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - Camilla Engblom
- Department of Cell and Molecular Biology, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | | | - Romy Mittenzwei
- Institute for Molecular Medicine and Research Center for Immunotherapy (FZI), University Medical Center Mainz, Johannes Gutenberg University of Mainz, 55131 Mainz, Germany
| | - Astrid M Westendorf
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Nadine Hövelmeyer
- Institute for Molecular Medicine and Research Center for Immunotherapy (FZI), University Medical Center Mainz, Johannes Gutenberg University of Mainz, 55131 Mainz, Germany
| | - Joakim Lundeberg
- KTH Royal Institute of Technology Stockholm, Science for Life Laboratory, Stockholm, Sweden
| | - Julio Saez-Rodriguez
- Institute of Computational Biomedicine, University of Heidelberg, Heidelberg, Germany
| | - Andreas Schlitzer
- Quantitative Systems Biology, Life and Medical Sciences Institute (LIMES), University of Bonn, 53115 Bonn, Germany
| | - Srustidhar Das
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Eduardo J Villablanca
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.
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14
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Liang Q, Fu J, Wang X, Liu L, Xiao W, Gao Y, Yang L, Yu H, Xueru X, Zikun T, Huang S, Han X, Qian L, Zhou Y.
circS100A11
enhances M2a macrophage activation and lung inflammation in children with asthma. Allergy 2022. [DOI: 10.1111/all.15515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/13/2022] [Accepted: 08/10/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Qiuyan Liang
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Jinrong Fu
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- Department of General Medicine, Children’s Hospital of Fudan University Shanghai China
| | - Xiang Wang
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Lijuan Liu
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- Department of Respiratory Medicine, Children’s Hospital of Fudan University Shanghai China
| | - Wenfeng Xiao
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Yajing Gao
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Lan Yang
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Hongmiao Yu
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Xie Xueru
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Tu Zikun
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Saihua Huang
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Xiao Han
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
| | - Liling Qian
- Department of Respiratory Medicine, Children’s Hospital of Fudan University Shanghai China
| | - Yufeng Zhou
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co‐laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University Shanghai China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases Fudan University Shanghai China
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15
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Singh P, Ali SA. Multifunctional Role of S100 Protein Family in the Immune System: An Update. Cells 2022; 11:cells11152274. [PMID: 35892571 PMCID: PMC9332480 DOI: 10.3390/cells11152274] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/12/2022] [Accepted: 07/21/2022] [Indexed: 12/04/2022] Open
Abstract
S100 is a broad subfamily of low-molecular weight calcium-binding proteins (9–14 kDa) with structural similarity and functional discrepancy. It is required for inflammation and cellular homeostasis, and can work extracellularly, intracellularly, or both. S100 members participate in a variety of activities in a healthy cell, including calcium storage and transport (calcium homeostasis). S100 isoforms that have previously been shown to play important roles in the immune system as alarmins (DAMPs), antimicrobial peptides, pro-inflammation stimulators, chemo-attractants, and metal scavengers during an innate immune response. Currently, during the pandemic, it was found that several members of the S100 family are implicated in the pathophysiology of COVID-19. Further, S100 family protein members were proposed to be used as a prognostic marker for COVID-19 infection identification using a nasal swab. In the present review, we compiled the vast majority of recent studies that focused on the multifunctionality of S100 proteins in the complex immune system and its associated activities. Furthermore, we shed light on the numerous molecular approaches and signaling cascades regulated by S100 proteins during immune response. In addition, we discussed the involvement of S100 protein members in abnormal defense systems during the pathogenesis of COVID-19.
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Affiliation(s)
- Parul Singh
- Cell Biology and Proteomics Lab, Animal Biotechnology Center, ICAR-NDRI, Karnal 132001, India;
| | - Syed Azmal Ali
- Cell Biology and Proteomics Lab, Animal Biotechnology Center, ICAR-NDRI, Karnal 132001, India;
- Division of Proteomics of Stem Cells and Cancer, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Correspondence: ; Tel.: +91-8708591790
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16
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Immune responses to Toxoplasma gondii. Curr Opin Immunol 2022; 77:102226. [PMID: 35785567 DOI: 10.1016/j.coi.2022.102226] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/19/2022] [Accepted: 05/19/2022] [Indexed: 11/22/2022]
Abstract
Toxoplasma gondii is an obligate intracellular parasite that can cause severe complications in the newborn and immunocompromised individuals. The parasite evokes a strong innate immune response in the infected hosts which is followed by a robust adaptive immunity. In the last few years, importance of innate immune mechanisms dependent on the role of MyD-88 independent pathways, inflammatory monocytes and innate lymphocyte have been identified. However, notwithstanding the strong immune response to the parasite, the chronic infection persists in the host. The inability to prevent chronic infection can be attributed to aberration in the memory CD8 T cell response caused by an increased expression of inhibitory receptors that leads to their dysfunctionality.
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17
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Alarm Signal S100-Related Signature Is Correlated with Tumor Microenvironment and Predicts Prognosis in Glioma. DISEASE MARKERS 2022; 2022:4968555. [PMID: 35592707 PMCID: PMC9113871 DOI: 10.1155/2022/4968555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/15/2022] [Accepted: 04/19/2022] [Indexed: 11/17/2022]
Abstract
Glioma are the most common malignant central nervous system tumor and are characterized by uncontrolled proliferation and resistance to therapy. Dysregulation of S100 proteins may augment tumor initiation, proliferation, and metastasis by modulating immune response. However, the comprehensive function and prognostic value of S100 proteins in glioma remain unclear. Here, we explored the expression profiles of 17 S100 family genes and constructed a high-efficient prediction model for glioma based on CGGA and TCGA datasets. Immune landscape analysis displayed that the distribution of immune scores, ESTIMATE scores, and stromal scores, as well as infiltrating immune cells (macrophages M0/M1/M2, T cell CD4+ naïve, Tregs, monocyte, neutrophil, and NK activated), were significant different between risk-score subgroups. Overall, we demonstrated the value of S100 protein-related signature in the prediction of glioma patients’ prognosis and determined its relationship with the tumor microenvironment (TME) in glioma.
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18
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Idro R, Ogwang R, Barragan A, Raimondo JV, Masocha W. Neuroimmunology of Common Parasitic Infections in Africa. Front Immunol 2022; 13:791488. [PMID: 35222377 PMCID: PMC8866860 DOI: 10.3389/fimmu.2022.791488] [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: 10/08/2021] [Accepted: 01/18/2022] [Indexed: 11/13/2022] Open
Abstract
Parasitic infections of the central nervous system are an important cause of morbidity and mortality in Africa. The neurological, cognitive, and psychiatric sequelae of these infections result from a complex interplay between the parasites and the host inflammatory response. Here we review some of the diseases caused by selected parasitic organisms known to infect the nervous system including Plasmodium falciparum, Toxoplasma gondii, Trypanosoma brucei spp., and Taenia solium species. For each parasite, we describe the geographical distribution, prevalence, life cycle, and typical clinical symptoms of infection and pathogenesis. We pay particular attention to how the parasites infect the brain and the interaction between each organism and the host immune system. We describe how an understanding of these processes may guide optimal diagnostic and therapeutic strategies to treat these disorders. Finally, we highlight current gaps in our understanding of disease pathophysiology and call for increased interrogation of these often-neglected disorders of the nervous system.
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Affiliation(s)
- Richard Idro
- College of Health Sciences, Makerere University, Kampala, Uganda.,Centre of Tropical Neuroscience, Kitgum, Uganda.,Nuffield Department of Medicine, Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Rodney Ogwang
- College of Health Sciences, Makerere University, Kampala, Uganda.,Centre of Tropical Neuroscience, Kitgum, Uganda.,Kenya Medical Research Institute (KEMRI) - Wellcome Trust Research Programme, Nairobi, Kenya
| | - Antonio Barragan
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Joseph Valentino Raimondo
- Division of Cell Biology, Department of Human Biology, Neuroscience Institute and Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Willias Masocha
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Kuwait University, Safat, Kuwait
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19
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Sasai M, Yamamoto M. Anti-toxoplasma host defense systems and the parasitic counterdefense mechanisms. Parasitol Int 2022; 89:102593. [DOI: 10.1016/j.parint.2022.102593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 04/12/2022] [Accepted: 04/26/2022] [Indexed: 10/18/2022]
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20
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Itaconate inhibits TET DNA dioxygenases to dampen inflammatory responses. Nat Cell Biol 2022; 24:353-363. [DOI: 10.1038/s41556-022-00853-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 01/26/2022] [Indexed: 12/19/2022]
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21
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Zhu T, Zhang L, Li C, Tan X, Liu J, Huiqin Li, Fan Q, Zhang Z, Zhan M, Fu L, Luo J, Geng J, Wu Y, Zou X, Liang B. The S100 calcium binding protein A11 promotes liver fibrogenesis by targeting TGF-β signaling. J Genet Genomics 2022; 49:338-349. [PMID: 35240304 DOI: 10.1016/j.jgg.2022.02.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/22/2022] [Accepted: 02/22/2022] [Indexed: 12/16/2022]
Abstract
Liver fibrosis is a key transformation stage and also a reversible pathological process in various types of chronic liver diseases. However, the pathogenesis of liver fibrosis still remains elusive. Here, we report that the calcium binding protein A11 (S100A11) is consistently upregulated in the integrated data from GSE liver fibrosis and tree shrew liver proteomics. S100A11 is also experimentally activated in liver fibrosis in mouse, rat, tree shrew, and human with liver fibrosis. While overexpression of S100A11 in vivo and in vitro exacerbates liver fibrosis, the inhibition of S100A11 improves liver fibrosis. Mechanistically, S100A11 activates hepatic stellate cells (HSCs) and the fibrogenesis process via the regulation of the deacetylation of Smad3 in the TGF-β signaling pathway. S100A11 physically interacts with SIRT6, a deacetylase of Smad2/3, which may competitively inhibit the interaction between SIRT6 and Smad2/3. The subsequent release and activation of Smad2/3 promote the activation of HSCs and fibrogenesis. Additionally, a significant elevation of S100A11 in serum is observed in clinical patients. Our study uncovers S100A11 as a novel profibrogenic factor in liver fibrosis, which may represent both a potential biomarker and a promising therapy target for treating liver fibrosis and fibrosis-related liver diseases.
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Affiliation(s)
- Tingting Zhu
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, China
| | - Linqiang Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Chengbin Li
- Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, Yunnan 650091, China
| | - Xiaoqiong Tan
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, China
| | - Jing Liu
- Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, Yunnan 650091, China
| | - Huiqin Li
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, China
| | - Qijing Fan
- School of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China
| | - Zhiguo Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Mingfeng Zhan
- Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, Yunnan 650091, China
| | - Lin Fu
- Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, Yunnan 650091, China
| | - Jinbo Luo
- Infectious Diseases Department and Hepatic Diseases Department, the First People's Hospital of Yunnan Province, Kunming, Yunnan 650034, China; Infectious Diseases Department and Hepatic Diseases Department, the Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan 650034, China
| | - Jiawei Geng
- Infectious Diseases Department and Hepatic Diseases Department, the First People's Hospital of Yunnan Province, Kunming, Yunnan 650034, China; Infectious Diseases Department and Hepatic Diseases Department, the Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan 650034, China.
| | - Yingjie Wu
- School of Laboratory Animal & Shandong Laboratory Animal Center, Science and Technology Innovation Center,Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250021, China; Institute for Genome Engineered Animal Models of Human Diseases, National Center of Genetically Engineered Animal Models for International Research, Liaoning Provence Key Lab of Genome Engineered Animal Models Dalian Medical University, Dalian, Liaoning 116044, China.
| | - Xiaoju Zou
- School of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China.
| | - Bin Liang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, Yunnan 650091, China.
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22
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Wu YY, Li XF, Wu S, Niu XN, Yin SQ, Huang C, Li J. Role of the S100 protein family in rheumatoid arthritis. Arthritis Res Ther 2022; 24:35. [PMID: 35101111 PMCID: PMC8802512 DOI: 10.1186/s13075-022-02727-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 01/16/2022] [Indexed: 12/14/2022] Open
Abstract
Rheumatoid arthritis is a chronic systemic autoimmune disease characterized by synovial hyperplasia, inflammatory cell infiltration, and proliferation of inflammatory tissue (angiogranuloma). The destruction of joints and surrounding tissues eventually causes joint deformities and dysfunction or even loss. The S100 protein family is one of the biggest subtribes in the calcium-binding protein family and has more than 20 members. The overexpression of most S100 proteins in rheumatoid arthritis is closely related to its pathogenesis. This paper reviews the relationship between S100 proteins and the occurrence and development of rheumatoid arthritis. It will provide insights into the development of new clinical diagnostic markers and therapeutic targets for rheumatoid arthritis.
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Affiliation(s)
- Yuan-Yuan Wu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Xiao-Feng Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Postdoctoral Station of Clinical Medicine of Anhui Medical University, Hefei, Anhui, China
| | - Sha Wu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Xue-Ni Niu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Su-Qin Yin
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Cheng Huang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
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23
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Wang LJ, Lv P, Lou Y, Ye J. Gene Expression-Based Predication of RNA Pseudouridine Modification in Tumor Microenvironment and Prognosis of Glioma Patients. Front Cell Dev Biol 2022; 9:727595. [PMID: 35118063 PMCID: PMC8804349 DOI: 10.3389/fcell.2021.727595] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 12/22/2021] [Indexed: 01/27/2023] Open
Abstract
Aberrant expression of methyltransferases and demethylases may augment tumor initiation, proliferation and metastasis through RNA modification, such as m6A and m5C. However, activity of pseudouridine (Ψ) modification of RNA remains unknown in glioma, the most common malignant intracranial tumor. In this study, we explored the expression profiles of the Ψ synthase genes in glioma and constructed an efficient prediction model for glioma prognosis based on the CGGA and TCGA datasets. In addition, the risk-score signature was positively associated with malignancy of gliomas and the abundance of tumor-infiltrating immune cells such as macrophages M0 and regulatory T cells (Tregs), but negatively associated with the abundance of monocytes, NK cell activation and T cell CD4+ naive. In terms of mechanism, the risk-score signature was positively associated with the expression of inflammatory molecules such as S100A11 and CASP4 in glioma. Overall, this study provided evidence for the activity of RNA Ψ modification in glioma malignancy and local immunity.
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Affiliation(s)
- Lin-jian Wang
- Department of Neurosurgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
- Metabolic Disease Research Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
- *Correspondence: Lin-jian Wang, ; Yongli Lou,
| | - Peipei Lv
- Department of Radiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Yongli Lou
- Department of Neurosurgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
- *Correspondence: Lin-jian Wang, ; Yongli Lou,
| | - Jianping Ye
- Metabolic Disease Research Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
- Center for Advanced Medicine, College of Medicine, Zhengzhou University, Zhengzhou, China
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24
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Frickel EM, Hunter CA. Lessons from Toxoplasma: Host responses that mediate parasite control and the microbial effectors that subvert them. J Exp Med 2021; 218:212714. [PMID: 34670268 PMCID: PMC8532566 DOI: 10.1084/jem.20201314] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/03/2021] [Accepted: 09/29/2021] [Indexed: 11/15/2022] Open
Abstract
The intracellular parasite Toxoplasma gondii has long provided a tractable experimental system to investigate how the immune system deals with intracellular infections. This review highlights the advances in defining how this organism was first detected and the studies with T. gondii that contribute to our understanding of how the cytokine IFN-γ promotes control of vacuolar pathogens. In addition, the genetic tractability of this eukaryote organism has provided the foundation for studies into the diverse strategies that pathogens use to evade antimicrobial responses and now provides the opportunity to study the basis for latency. Thus, T. gondii remains a clinically relevant organism whose evolving interactions with the host immune system continue to teach lessons broadly relevant to host–pathogen interactions.
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Affiliation(s)
- Eva-Maria Frickel
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, UK
| | - Christopher A Hunter
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
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25
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A Novel S100 Family-Based Signature Associated with Prognosis and Immune Microenvironment in Glioma. JOURNAL OF ONCOLOGY 2021; 2021:3586589. [PMID: 34712325 PMCID: PMC8548170 DOI: 10.1155/2021/3586589] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/13/2021] [Accepted: 08/26/2021] [Indexed: 12/12/2022]
Abstract
Background Glioma is the most common central nervous system (CNS) cancer with a short survival period and a poor prognosis. The S100 family gene, comprising 25 members, relates to diverse biological processes of human malignancies. Nonetheless, the significance of S100 genes in predicting the prognosis of glioma remains largely unclear. We aimed to build an S100 family-based signature for glioma prognosis. Methods We downloaded 665 and 313 glioma patients, respectively, from The Cancer Genome Atlas (TCGA) and Chinese Glioma Genome Atlas (CGGA) database with RNAseq data and clinical information. This study established a prognostic signature based on the S100 family genes through multivariate COX and LASSO regression. The Kaplan-Meier curve was plotted to compare overall survival (OS) among groups, whereas Receiver Operating Characteristic (ROC) analysis was performed to evaluate model accuracy. A representative gene S100B was further verified by in vitro experiments. Results An S100 family-based signature comprising 5 genes was constructed to predict the glioma that stratified TCGA-derived cases as a low- or high-risk group, whereas the significance of prognosis was verified based on CGGA-derived cases. Kaplan-Meier analysis revealed that the high-risk group was associated with the dismal prognosis. Furthermore, the S100 family-based signature was proved to be closely related to immune microenvironment. In vitro analysis showed S100B gene in the signature promoted glioblastoma (GBM) cell proliferation and migration. Conclusions We constructed and verified a novel S100 family-based signature associated with tumor immune microenvironment (TIME), which may shed novel light on the glioma diagnosis and treatment.
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26
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Snyder LM, Doherty CM, Mercer HL, Denkers EY. Induction of IL-12p40 and type 1 immunity by Toxoplasma gondii in the absence of the TLR-MyD88 signaling cascade. PLoS Pathog 2021; 17:e1009970. [PMID: 34597344 PMCID: PMC8513874 DOI: 10.1371/journal.ppat.1009970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 10/13/2021] [Accepted: 09/25/2021] [Indexed: 12/18/2022] Open
Abstract
Toxoplasma gondii is an orally acquired pathogen that induces strong IFN-γ based immunity conferring protection but that can also be the cause of immunopathology. The response in mice is driven in part by well-characterized MyD88-dependent signaling pathways. Here we focus on induction of less well understood immune responses that do not involve this Toll-like receptor (TLR)/IL-1 family receptor adaptor molecule, in particular as they occur in the intestinal mucosa. Using eYFP-IL-12p40 reporter mice on an MyD88-/- background, we identified dendritic cells, macrophages, and neutrophils as cellular sources of MyD88-independent IL-12 after peroral T. gondii infection. Infection-induced IL-12 was lower in the absence of MyD88, but was still clearly above noninfected levels. Overall, this carried through to the IFN-γ response, which while generally decreased was still remarkably robust in the absence of MyD88. In the latter mice, IL-12 was strictly required to induce type I immunity. Type 1 and type 3 innate lymphoid cells (ILC), CD4+ T cells, and CD8+ T cells each contributed to the IFN-γ pool. We report that ILC3 were expanded in infected MyD88-/- mice relative to their MyD88+/+ counterparts, suggesting a compensatory response triggered by loss of MyD88. Furthermore, bacterial flagellin and Toxoplasma specific CD4+ T cell populations in the lamina propria expanded in response to infection in both WT and KO mice. Finally, we show that My88-independent IL-12 and T cell mediated IFN-γ production require the presence of the intestinal microbiota. Our results identify MyD88-independent intestinal immune pathways induced by T. gondii including myeloid cell derived IL-12 production, downstream type I immunity and IFN-γ production by ILC1, ILC3, and T lymphocytes. Collectively, our data reveal an underlying network of immune responses that do not involve signaling through MyD88. Toxoplasma gondii is an apicomplexan parasite estimated to infect 30–50% of humans worldwide. The parasite normally establishes latency in brain and muscle tissue marked by persistent asymptomatic infection. T. gondii masterfully strikes a balance between eliciting strong, anti-parasite immunity while also persisting in the host. Although the murine host recognizes Toxoplasma profilin via MyD88 and Toll-like receptors 11/12, humans lack these receptors and MyD88 deficient patients retain resistance to T. gondii infection. Given these observations, it is important to identify MyD88 independent pathways of immunity. Using an oral infection mouse model, we identified cellular sources of IL-12 and IFN-γ, two cytokines that are essential for host resistance to this microbial pathogen. We determined how these responses are impacted by the presence and absence of MyD88 and the intestinal microbiota. Our data demonstrate that T. gondii triggers MyD88-independent innate and adaptive immunity in the intestinal mucosa that requires the presence of intestinal microbes. These pathways may be conserved among species and understanding how they work in rodents will likely help determine how humans recognize and respond to T. gondii infection.
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Affiliation(s)
- Lindsay M Snyder
- Center for Evolutionary and Theoretical Immunology and Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - Claire M Doherty
- Center for Evolutionary and Theoretical Immunology and Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - Heather L Mercer
- Center for Evolutionary and Theoretical Immunology and Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - Eric Y Denkers
- Center for Evolutionary and Theoretical Immunology and Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America
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27
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Staurengo-Ferrari L, Sanfelice RADS, de Souza JB, Assolini JP, Dos Santos DP, Cataneo AHD, Bordignon J, Conchon-Costa I, da Costa IN, Fernandes GSA. Impact of Toxoplasma gondii infection on TM3 Leydig cells: Alterations in testosterone and cytokines levels. Acta Trop 2021; 220:105938. [PMID: 33932363 DOI: 10.1016/j.actatropica.2021.105938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 02/06/2023]
Abstract
Leydig cells play pivotal roles in eliciting male characteristics by producing testosterone and any damage to these cells can compromise male fertility Toxoplasma gondii (T. gondii) is an intracellular parasite capable to invade any nucleated cell, including cells from male reproductive system. Herein, we evaluated the capacity of RH strain of T. gondii to infect TM3 Leydig cells and the impact of this infection on testosterone and inflammatory mediators production. We first, by performing adherence, infection, and intracellular proliferation assays, we found a significant increase in the number of infected Leydig cells, peaking 48 h after the infection with T. gondii. Supernatants of TM3 infected cells exhibited, in a time-dependent manner, increased levels of testosterone as well as monocyte chemoattractant protein-1 (MCP-1) and interferon-γ (IFN-γ), which is correlated with the robust T. gondii infection. In conclusion, our study provides new insights regarding the harmful effects of T. gondii infection on male reproductive system.
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Affiliation(s)
- Larissa Staurengo-Ferrari
- Department of Pathological Sciences, State University of Londrina, Rodovia Celso Garcia Cid Pr 445 Km 380, Londrina 86057-970, Brazil
| | - Raquel Arruda da Silva Sanfelice
- Laboratory of Immunoparasitology of Neglected Diseases and Cancer-LIDNC, Department, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Julia Bagatim de Souza
- Department of General Biology, State University of Londrina, Rodovia Celso Garcia Cid Pr 445 Km 380, Londrina 86057-970, Brazil
| | - Joao Paulo Assolini
- Laboratory of Immunoparasitology of Neglected Diseases and Cancer-LIDNC, Department, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Dayane Priscila Dos Santos
- Department of Pathological Sciences, State University of Londrina, Rodovia Celso Garcia Cid Pr 445 Km 380, Londrina 86057-970, Brazil; Department of General Biology, State University of Londrina, Rodovia Celso Garcia Cid Pr 445 Km 380, Londrina 86057-970, Brazil
| | | | - Juliano Bordignon
- Laboratory of Molecular Virology, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná Brazil
| | - Ivete Conchon-Costa
- Laboratory of Immunoparasitology of Neglected Diseases and Cancer-LIDNC, Department, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Idessania Nazareth da Costa
- Laboratory of Immunoparasitology of Neglected Diseases and Cancer-LIDNC, Department, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
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Matta SK, Rinkenberger N, Dunay IR, Sibley LD. Toxoplasma gondii infection and its implications within the central nervous system. Nat Rev Microbiol 2021; 19:467-480. [PMID: 33627834 DOI: 10.1038/s41579-021-00518-7] [Citation(s) in RCA: 98] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2021] [Indexed: 01/31/2023]
Abstract
Toxoplasma gondii is a parasite that infects a wide range of animals and causes zoonotic infections in humans. Although it normally only results in mild illness in healthy individuals, toxoplasmosis is a common opportunistic infection with high mortality in individuals who are immunocompromised, most commonly due to reactivation of infection in the central nervous system. In the acute phase of infection, interferon-dependent immune responses control rapid parasite expansion and mitigate acute disease symptoms. However, after dissemination the parasite differentiates into semi-dormant cysts that form within muscle cells and neurons, where they persist for life in the infected host. Control of infection in the central nervous system, a compartment of immune privilege, relies on modified immune responses that aim to balance infection control while limiting potential damage due to inflammation. In response to the activation of interferon-mediated pathways, the parasite deploys an array of effector proteins to escape immune clearance and ensure latent survival. Although these pathways are best studied in the laboratory mouse, emerging evidence points to unique mechanisms of control in human toxoplasmosis. In this Review, we explore some of these recent findings that extend our understanding for proliferation, establishment and control of toxoplasmosis in humans.
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Affiliation(s)
- Sumit K Matta
- Department of Molecular Microbiology, School of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Nicholas Rinkenberger
- Department of Molecular Microbiology, School of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Ildiko R Dunay
- Institute of Inflammation and Neurodegeneration, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - L David Sibley
- Department of Molecular Microbiology, School of Medicine, Washington University in St. Louis, St. Louis, MO, USA.
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29
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Zhang L, Zhu T, Miao H, Liang B. The Calcium Binding Protein S100A11 and Its Roles in Diseases. Front Cell Dev Biol 2021; 9:693262. [PMID: 34179021 PMCID: PMC8226020 DOI: 10.3389/fcell.2021.693262] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 05/21/2021] [Indexed: 12/27/2022] Open
Abstract
The calcium binding protein S100 family in humans contains 21 known members, with each possessing a molecular weight between 10 and 14 kDa. These proteins are characterized by a unique helix-loop-helix EF hand motif, and often form dimers and multimers. The S100 family mainly exists in vertebrates and exerts its biological functions both inside cells as a calcium sensor/binding protein, as well as outside cells. S100A11, a member of the S100 family, may mediate signal transduction in response to internal or external stimuli and it plays various roles in different diseases such as cancers, metabolic disease, neurological diseases, and vascular calcification. In addition, it can function as chemotactic agent in inflammatory disease. In this review, we first detail the discovery of S100 proteins and their structural features, and then specifically focus on the tissue and organ expression of S100A11. We also summarize its biological activities and roles in different disease and signaling pathways, providing an overview of S100A11 research thus far.
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Affiliation(s)
- Linqiang Zhang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Tingting Zhu
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Huilai Miao
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of General Surgery, Dongguan Liaobu Hospital, Dongguan, China
| | - Bin Liang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
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30
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Muglia Amancio A, Mittereder L, Carletti A, Tosh KW, Green D, Antonelli LR, Gazzinelli RT, Sher A, Jankovic D. IFNs Reset the Differential Capacity of Human Monocyte Subsets to Produce IL-12 in Response to Microbial Stimulation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 206:1642-1652. [PMID: 33627376 PMCID: PMC8034562 DOI: 10.4049/jimmunol.2001194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 01/28/2021] [Indexed: 12/24/2022]
Abstract
Human primary monocytes are composed of a minor, more mature CD16+(CD14low/neg) population and a major CD16neg(CD14+) subset. The specific functions of CD16+ versus CD16neg monocytes in steady state or inflammation remain poorly understood. In previous work, we found that IL-12 is selectively produced by the CD16+ subset in response to the protozoan pathogen, Toxoplasma gondii In this study, we demonstrated that this differential responsiveness correlates with the presence of an IFN-induced transcriptional signature in CD16+ monocytes already at baseline. Consistent with this observation, we found that in vitro IFN-γ priming overcomes the defect in the IL-12 response of the CD16neg subset. In contrast, pretreatment with IFN-γ had only a minor effect on IL-12p40 secretion by the CD16+ population. Moreover, inhibition of the mTOR pathway also selectively increased the IL-12 response in CD16neg but not in CD16+ monocytes. We further demonstrate that in contrast to IFN-γ, IFN-α fails to promote IL-12 production by the CD16neg subset and blocks the effect of IFN-γ priming. Based on these observations, we propose that the acquisition of IL-12 responsiveness by peripheral blood monocyte subsets depends on extrinsic signals experienced during their developmental progression in vivo. This process can be overridden during inflammation by the opposing regulatory effects of type I and II IFN as well as the mTOR inhibition.
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Affiliation(s)
- Alice Muglia Amancio
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Lara Mittereder
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Alexie Carletti
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Kevin W Tosh
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Daniel Green
- Women's Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Lis R Antonelli
- Instituto de Pesquisas Rene Rachou, FIOCRUZ, Belo Horizonte, Minas Gerais 30190-002, Brazil
| | - Ricardo T Gazzinelli
- Instituto de Pesquisas Rene Rachou, FIOCRUZ, Belo Horizonte, Minas Gerais 30190-002, Brazil
- Division of Infectious Disease and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605; and
- Plataforma de Medicina Translacional, FIOCRUZ, Ribeirão Preto, São Paulo 14040-030, Brazil
| | - Alan Sher
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Dragana Jankovic
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892;
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31
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Teng F, Jiang J, Zhang J, Yuan Y, Li K, Zhou B, Zhou X, Liu W, Zhang P, Liu D, Zheng M, Lu Y, Zhang H. The S100 calcium-binding protein A11 promotes hepatic steatosis through RAGE-mediated AKT-mTOR signaling. Metabolism 2021; 117:154725. [PMID: 33571540 DOI: 10.1016/j.metabol.2021.154725] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/27/2021] [Accepted: 02/02/2021] [Indexed: 02/06/2023]
Abstract
RATIONALE Nonalcoholic fatty liver disease (NAFLD), the most common cause of chronic liver disease, has become an increasingly severe public health problem. However, the underlying mechanism for the occurrence and development of NAFLD remains largely unknown. S100 calcium-binding protein A11 (S100A11) is a multifunctional protein previously reported to be a poor prognostic indicator of hepatocellular carcinoma, while the role of S100A11 affects NAFLD is still not clear. METHODS Immunohistochemical staining was performed using human NAFLD and control biopsy specimens. Serum level of S100A11 were analyzed by Elisa assays. The S100A11 over-expressed/ knocked-down model was established in vitro or in vivo. The expression levels of genes related to lipid metabolism in liver tissue were performed by quantitative PCR and western blotting. Hepatic lipid accumulation was determined by biochemical measurements and histochemistry. RESULTS We showed that the concentration of serum S100A11 was significantly elevated in NAFLD patients, and expression of S100A11 was remarkedly increased in the livers of NAFLD patients and mouse models. Overexpression of S100A11 in vivo markedly increased liver steatosis, body weight, and serum aspartate aminotransaminase (AST) levels. Mechanistically, our results demonstrated that S100A11 acted as a positive regulator of AKT/mTOR signaling to induce lipid synthesis and aggravate lipid deposition. CONCLUSIONS These results provide evidence for a novel role of S100A11 that contributes to hepatic steatosis, suggesting that targeting S100A11 may be an alternative approach for the treatment of NAFLD.
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Affiliation(s)
- Fei Teng
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Jingjing Jiang
- The Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jinhua Zhang
- Key Laboratory of Functional and Clinical Translational Medicine, Department of General Medicine, Xiamen Medical College, Xiamen, China
| | - Youwen Yuan
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Kangli Li
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Bing Zhou
- The Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xuan Zhou
- The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Wenhui Liu
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Peizhen Zhang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Deying Liu
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Minghua Zheng
- MAFLD Research Center, Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Diagnosis and Treatment for The Development of Chronic Liver Disease, Zhejiang Province, Wenzhou, Zhejiang, China
| | - Yan Lu
- The Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Huijie Zhang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China.
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Elsheikha HM, Marra CM, Zhu XQ. Epidemiology, Pathophysiology, Diagnosis, and Management of Cerebral Toxoplasmosis. Clin Microbiol Rev 2021; 34:e00115-19. [PMID: 33239310 PMCID: PMC7690944 DOI: 10.1128/cmr.00115-19] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Toxoplasma gondii is known to infect a considerable number of mammalian and avian species and a substantial proportion of the world's human population. The parasite has an impressive ability to disseminate within the host's body and employs various tactics to overcome the highly regulatory blood-brain barrier and reside in the brain. In healthy individuals, T. gondii infection is largely tolerated without any obvious ill effects. However, primary infection in immunosuppressed patients can result in acute cerebral or systemic disease, and reactivation of latent tissue cysts can lead to a deadly outcome. It is imperative that treatment of life-threatening toxoplasmic encephalitis is timely and effective. Several therapeutic and prophylactic regimens have been used in clinical practice. Current approaches can control infection caused by the invasive and highly proliferative tachyzoites but cannot eliminate the dormant tissue cysts. Adverse events and other limitations are associated with the standard pyrimethamine-based therapy, and effective vaccines are unavailable. In this review, the epidemiology, economic impact, pathophysiology, diagnosis, and management of cerebral toxoplasmosis are discussed, and critical areas for future research are highlighted.
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Affiliation(s)
- Hany M Elsheikha
- Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham, Loughborough, United Kingdom
| | - Christina M Marra
- Departments of Neurology and Medicine, University of Washington School of Medicine, Seattle, Washington, USA
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, People's Republic of China
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, People's Republic of China
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Snyder LM, Denkers EY. From Initiators to Effectors: Roadmap Through the Intestine During Encounter of Toxoplasma gondii With the Mucosal Immune System. Front Cell Infect Microbiol 2021; 10:614701. [PMID: 33505924 PMCID: PMC7829212 DOI: 10.3389/fcimb.2020.614701] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 11/24/2020] [Indexed: 12/26/2022] Open
Abstract
The gastrointestinal tract is a major portal of entry for many pathogens, including the protozoan parasite Toxoplasma gondii. Billions of people worldwide have acquired T. gondii at some point in their life, and for the vast majority this has led to latent infection in the central nervous system. The first line of host defense against Toxoplasma is located within the intestinal mucosa. Appropriate coordination of responses by the intestinal epithelium, intraepithelial lymphocytes, and lamina propria cells results in an inflammatory response that controls acute infection. Under some conditions, infection elicits bacterial dysbiosis and immune-mediated tissue damage in the intestine. Here, we discuss the complex interactions between the microbiota, the epithelium, as well as innate and adaptive immune cells in the intestinal mucosa that induce protective immunity, and that sometimes switch to inflammatory pathology as T. gondii encounters tissues of the gut.
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Affiliation(s)
- Lindsay M Snyder
- Center for Evolutionary and Theoretical Immunology and Department of Biology, University of New Mexico, Albuquerque, NM, United States
| | - Eric Y Denkers
- Center for Evolutionary and Theoretical Immunology and Department of Biology, University of New Mexico, Albuquerque, NM, United States
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Wang Y, Zhu J, Cao Y, Shen J, Yu L. Insight Into Inflammasome Signaling: Implications for Toxoplasma gondii Infection. Front Immunol 2020; 11:583193. [PMID: 33391259 PMCID: PMC7772217 DOI: 10.3389/fimmu.2020.583193] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/17/2020] [Indexed: 12/19/2022] Open
Abstract
Inflammasomes are multimeric protein complexes regulating the innate immune response to invading pathogens or stress stimuli. Recent studies have reported that nucleotide-binding leucine-rich repeat-containing (NLRs) proteins and DNA sensor absent in melanoma 2 (AIM2) serve as inflammasome sentinels, whose stimulation leads to the proteolytic activation of caspase-1, proinflammatory cytokine secretion, and pyroptotic cell death. Toxoplasma gondii, an obligate intracellular parasite of phylum Apicomplexans, is reportedly involved in NLRP1, NLRP3 and AIM2 inflammasomes activation; however, mechanistic evidence regarding the activation of these complexes is preliminary. This review describes the current understanding of inflammasome signaling in rodent and human models of T. gondii infection.
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Affiliation(s)
- Yang Wang
- Department of Microbiology and Parasitology, Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Provincial Laboratory of Zoonoses of High Institutions, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Jinjin Zhu
- Department of Microbiology and Parasitology, Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Provincial Laboratory of Zoonoses of High Institutions, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Yuanyuan Cao
- Department of Microbiology and Parasitology, Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Provincial Laboratory of Zoonoses of High Institutions, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Jilong Shen
- Department of Microbiology and Parasitology, Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Provincial Laboratory of Zoonoses of High Institutions, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Li Yu
- Department of Microbiology and Parasitology, Anhui Provincial Laboratory of Microbiology and Parasitology, Anhui Provincial Laboratory of Zoonoses of High Institutions, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
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Single-cell RNA-seq reveals CD16 - monocytes as key regulators of human monocyte transcriptional response to Toxoplasma. Sci Rep 2020; 10:21047. [PMID: 33273621 PMCID: PMC7713135 DOI: 10.1038/s41598-020-78250-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022] Open
Abstract
Monocytes are among the major myeloid cells that respond to Toxoplasma, a ubiquitous foodborne that infects ≥ 1 billion people worldwide, in human peripheral blood. As such, a molecular understanding of human monocyte-Toxoplasma interactions can expedite the development of novel human toxoplasmosis control strategies. Current molecular studies on monocyte-Toxoplasma interactions are based on average cell or parasite responses across bulk cell populations. Although informative, population-level averages of monocyte responses to Toxoplasma have sometimes produced contradictory results, such as whether CCL2 or IL12 define effective monocyte responses to the parasite. Here, we used single-cell dual RNA sequencing (scDual-Seq) to comprehensively define, for the first time, the monocyte and parasite transcriptional responses that underpin human monocyte-Toxoplasma encounters at the single cell level. We report extreme transcriptional variability between individual monocytes. Furthermore, we report that Toxoplasma-exposed and unexposed monocytes are transcriptionally distinguished by a reactive subset of CD14+CD16- monocytes. Functional cytokine assays on sorted monocyte populations show that the infection-distinguishing monocytes secrete high levels of chemokines, such as CCL2 and CXCL5. These findings uncover the Toxoplasma-induced monocyte transcriptional heterogeneity and shed new light on the cell populations that largely define cytokine and chemokine secretion in human monocytes exposed to Toxoplasma.
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Mévélec MN, Lakhrif Z, Dimier-Poisson I. Key Limitations and New Insights Into the Toxoplasma gondii Parasite Stage Switching for Future Vaccine Development in Human, Livestock, and Cats. Front Cell Infect Microbiol 2020; 10:607198. [PMID: 33324583 PMCID: PMC7724089 DOI: 10.3389/fcimb.2020.607198] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 10/19/2020] [Indexed: 12/19/2022] Open
Abstract
Toxoplasmosis is a parasitic disease affecting human, livestock and cat. Prophylactic strategies would be ideal to prevent infection. In a One Health vaccination approach, the objectives would be the prevention of congenital disease in both women and livestock, prevention/reduction of T. gondii tissue cysts in food-producing animals; and oocyst shedding in cats. Over the last few years, an explosion of strategies for vaccine development, especially due to the development of genetic-engineering technologies has emerged. The field of vaccinology has been exploring safer vaccines by the generation of recombinant immunogenic proteins, naked DNA vaccines, and viral/bacterial recombinants vectors. These strategies based on single- or few antigens, are less efficacious than recombinant live-attenuated, mostly tachyzoite T. gondii vaccine candidates. Reflections on the development of an anti-Toxoplasma vaccine must focus not only on the appropriate route of administration, capable of inducing efficient immune response, but also on the choice of the antigen (s) of interest and the associated delivery systems. To answer these questions, the choice of the animal model is essential. If mice helped in understanding the protection mechanisms, the data obtained cannot be directly transposed to humans, livestock and cats. Moreover, effectiveness vaccines should elicit strong and protective humoral and cellular immune responses at both local and systemic levels against the different stages of the parasite. Finally, challenge protocols should use the oral route, major natural route of infection, either by feeding tissue cysts or oocysts from different T. gondii strains. Effective Toxoplasma vaccines depend on our understanding of the (1) protective host immune response during T. gondii invasion and infection in the different hosts, (2) manipulation and modulation of host immune response to ensure survival of the parasites able to evade and subvert host immunity, (3) molecular mechanisms that define specific stage development. This review presents an overview of the key limitations for the development of an effective vaccine and highlights the contributions made by recent studies on the mechanisms behind stage switching to offer interesting perspectives for vaccine development.
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Affiliation(s)
| | - Zineb Lakhrif
- Team BioMAP, Université de Tours, INRAE, ISP, Tours, France
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Mukhopadhyay D, Arranz-Solís D, Saeij JPJ. Influence of the Host and Parasite Strain on the Immune Response During Toxoplasma Infection. Front Cell Infect Microbiol 2020; 10:580425. [PMID: 33178630 PMCID: PMC7593385 DOI: 10.3389/fcimb.2020.580425] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/11/2020] [Indexed: 01/02/2023] Open
Abstract
Toxoplasma gondii is an exceptionally successful parasite that infects a very broad host range, including humans, across the globe. The outcome of infection differs remarkably between hosts, ranging from acute death to sterile infection. These differential disease patterns are strongly influenced by both host- and parasite-specific genetic factors. In this review, we discuss how the clinical outcome of toxoplasmosis varies between hosts and the role of different immune genes and parasite virulence factors, with a special emphasis on Toxoplasma-induced ileitis and encephalitis.
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Affiliation(s)
| | | | - Jeroen P. J. Saeij
- Department of Pathology, Microbiology & Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
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Still KM, Batista SJ, O’Brien CA, Oyesola OO, Früh SP, Webb LM, Smirnov I, Kovacs MA, Cowan MN, Hayes NW, Thompson JA, Tait Wojno ED, Harris TH. Astrocytes promote a protective immune response to brain Toxoplasma gondii infection via IL-33-ST2 signaling. PLoS Pathog 2020; 16:e1009027. [PMID: 33108405 PMCID: PMC7647122 DOI: 10.1371/journal.ppat.1009027] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 11/06/2020] [Accepted: 09/29/2020] [Indexed: 12/27/2022] Open
Abstract
It is of great interest to understand how invading pathogens are sensed within the brain, a tissue with unique challenges to mounting an immune response. The eukaryotic parasite Toxoplasma gondii colonizes the brain of its hosts, and initiates robust immune cell recruitment, but little is known about pattern recognition of T. gondii within brain tissue. The host damage signal IL-33 is one protein that has been implicated in control of chronic T. gondii infection, but, like many other pattern recognition pathways, IL-33 can signal peripherally, and the specific impact of IL-33 signaling within the brain is unclear. Here, we show that IL-33 is expressed by oligodendrocytes and astrocytes during T. gondii infection, is released locally into the cerebrospinal fluid of T. gondii-infected animals, and is required for control of infection. IL-33 signaling promotes chemokine expression within brain tissue and is required for the recruitment and/or maintenance of blood-derived anti-parasitic immune cells, including proliferating, IFN-γ-expressing T cells and iNOS-expressing monocytes. Importantly, we find that the beneficial effects of IL-33 during chronic infection are not a result of signaling on infiltrating immune cells, but rather on radio-resistant responders, and specifically, astrocytes. Mice with IL-33 receptor-deficient astrocytes fail to mount an adequate adaptive immune response in the CNS to control parasite burden-demonstrating, genetically, that astrocytes can directly respond to IL-33 in vivo. Together, these results indicate a brain-specific mechanism by which IL-33 is released locally, and sensed locally, to engage the peripheral immune system in controlling a pathogen.
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Affiliation(s)
- Katherine M. Still
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Samantha J. Batista
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Carleigh A. O’Brien
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Oyebola O. Oyesola
- Baker Institute for Animal Health and Department of Microbiology and Immunology, Cornell University, Ithaca, New York, United States of America
- Department of Immunology, University of Washington, Seattle, Washington, United States of America
| | - Simon P. Früh
- Baker Institute for Animal Health and Department of Microbiology and Immunology, Cornell University, Ithaca, New York, United States of America
| | - Lauren M. Webb
- Department of Immunology, University of Washington, Seattle, Washington, United States of America
| | - Igor Smirnov
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Michael A. Kovacs
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Maureen N. Cowan
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Nikolas W. Hayes
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Jeremy A. Thompson
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Elia D. Tait Wojno
- Department of Immunology, University of Washington, Seattle, Washington, United States of America
| | - Tajie H. Harris
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
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Sobolewski C, Abegg D, Berthou F, Dolicka D, Calo N, Sempoux C, Fournier M, Maeder C, Ay AS, Clavien PA, Humar B, Dufour JF, Adibekian A, Foti M. S100A11/ANXA2 belongs to a tumour suppressor/oncogene network deregulated early with steatosis and involved in inflammation and hepatocellular carcinoma development. Gut 2020; 69:1841-1854. [PMID: 31919231 DOI: 10.1136/gutjnl-2019-319019] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Hepatocellular carcinoma (HCC) development occurs with non-alcoholic fatty liver disease (NAFLD) in the absence of cirrhosis and with an increasing incidence due to the obesity pandemic. Mutations of tumour suppressor (TS) genes and oncogenes (ONC) have been widely characterised in HCC. However, mounting evidence indicates that non-genomic alterations of TS/ONC occur early with NAFLD, thereby potentially promoting hepatocarcinogenesis in an inflammatory/fibrotic context. The aim of this study was to identify and characterise these alterations. DESIGN The proteome of steatotic liver tissues from mice spontaneously developing HCC was analysed. Alterations of TSs/ONCs were further investigated in various mouse models of NAFLD/HCC and in human samples. The inflammatory, fibrogenic and oncogenic functions of S100A11 were assessed through in vivo, in vitro and ex-vivo analyses. RESULTS A whole set of TSs/ONCs, respectively, downregulated or upregulated was uncovered in mice and human with NAFLD. Alterations of these TSs/ONCs were preserved or even exacerbated in HCC. Among them, overexpression of S100A11 was associated with high-grade HCC and poor prognosis. S100A11 downregulation in vivo significantly restrains the development of inflammation and fibrosis in mice fed a choline/methionine-deficient diet. Finally, in vitro and ex-vivo analyses revealed that S100A11 is a marker of hepatocyte de-differentiation, secreted by cancer cells, and promoting cell proliferation and migration. CONCLUSION Cellular stress associated with NAFLD triggers non-genomic alterations of a whole network of TSs/ONCs fostering hepatocarcinogenesis. Among those, overexpression of the oncogenic factor S100A11 promotes inflammation/fibrosis in vivo and is significantly associated with high-grade HCC with poor prognosis.
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Affiliation(s)
- Cyril Sobolewski
- Department of Cell Physiology and Metabolism, University of Geneva Faculty of Medicine, Geneve, GE, Switzerland
| | - Daniel Abegg
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida, USA
| | - Flavien Berthou
- Department of Cell Physiology and Metabolism, University of Geneva Faculty of Medicine, Geneve, GE, Switzerland
| | - Dobrochna Dolicka
- Department of Cell Physiology and Metabolism, University of Geneva Faculty of Medicine, Geneve, GE, Switzerland
| | - Nicolas Calo
- Department of Cell Physiology and Metabolism, University of Geneva Faculty of Medicine, Geneve, GE, Switzerland
| | - Christine Sempoux
- Department of Clinical Pathology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Margot Fournier
- Department of Cell Physiology and Metabolism, University of Geneva Faculty of Medicine, Geneve, GE, Switzerland
| | - Christine Maeder
- Department of Cell Physiology and Metabolism, University of Geneva Faculty of Medicine, Geneve, GE, Switzerland
| | - Anne-Sophie Ay
- Department of Cell Physiology and Metabolism, University of Geneva Faculty of Medicine, Geneve, GE, Switzerland
| | - Pierre-Alain Clavien
- Visceral and Transplantation Surgery, University Hospital of Zurich, Zurich, Switzerland
| | - Bostjan Humar
- Department of Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Jean-François Dufour
- Department of Hepatology and Clinical Research, University of Bern, Bern, Switzerland
| | - Alexander Adibekian
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida, USA
| | - Michelangelo Foti
- Department of Cell Physiology and Metabolism, University of Geneva Faculty of Medicine, Geneve, GE, Switzerland
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Yoshida N, Domart MC, Peddie CJ, Yakimovich A, Mazon-Moya MJ, Hawkins TA, Collinson L, Mercer J, Frickel EM, Mostowy S. The zebrafish as a novel model for the in vivo study of Toxoplasma gondii replication and interaction with macrophages. Dis Model Mech 2020; 13:dmm043091. [PMID: 32461265 PMCID: PMC7390642 DOI: 10.1242/dmm.043091] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 05/12/2020] [Indexed: 12/21/2022] Open
Abstract
Toxoplasma gondii is an obligate intracellular parasite capable of invading any nucleated cell. Three main clonal lineages (type I, II, III) exist and murine models have driven the understanding of general and strain-specific immune mechanisms underlying Toxoplasma infection. However, murine models are limited for studying parasite-leukocyte interactions in vivo, and discrepancies exist between cellular immune responses observed in mouse versus human cells. Here, we developed a zebrafish infection model to study the innate immune response to Toxoplasma in vivo By infecting the zebrafish hindbrain ventricle, and using high-resolution microscopy techniques coupled with computer vision-driven automated image analysis, we reveal that Toxoplasma invades brain cells and replicates inside a parasitophorous vacuole to which type I and III parasites recruit host cell mitochondria. We also show that type II and III strains maintain a higher infectious burden than type I strains. To understand how parasites are cleared in vivo, we further analyzed Toxoplasma-macrophage interactions using time-lapse microscopy and three-dimensional correlative light and electron microscopy (3D CLEM). Time-lapse microscopy revealed that macrophages are recruited to the infection site and play a key role in Toxoplasma control. High-resolution 3D CLEM revealed parasitophorous vacuole breakage in brain cells and macrophages in vivo, suggesting that cell-intrinsic mechanisms may be used to destroy the intracellular niche of tachyzoites. Together, our results demonstrate in vivo control of Toxoplasma by macrophages, and highlight the possibility that zebrafish may be further exploited as a novel model system for discoveries within the field of parasite immunity.This article has an associated First Person interview with the first author of the paper.
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MESH Headings
- Animals
- Disease Models, Animal
- Host-Parasite Interactions
- Macrophages/immunology
- Macrophages/parasitology
- Macrophages/ultrastructure
- Microscopy, Confocal
- Microscopy, Electron, Scanning
- Microscopy, Fluorescence
- Microscopy, Video
- Parasite Load
- Rhombencephalon/immunology
- Rhombencephalon/microbiology
- Rhombencephalon/ultrastructure
- Time Factors
- Toxoplasma/growth & development
- Toxoplasma/immunology
- Toxoplasma/ultrastructure
- Toxoplasmosis, Animal/immunology
- Toxoplasmosis, Animal/parasitology
- Toxoplasmosis, Animal/pathology
- Toxoplasmosis, Cerebral/immunology
- Toxoplasmosis, Cerebral/parasitology
- Toxoplasmosis, Cerebral/pathology
- Zebrafish/parasitology
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Affiliation(s)
- Nagisa Yoshida
- Host-Toxoplasma Interaction Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1BF, UK
- Section of Microbiology, MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, UK
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - Marie-Charlotte Domart
- Electron Microscopy Science Technology Platform, The Francis Crick Institute, 1 Midland Road, London NW1 1BF, UK
| | - Christopher J Peddie
- Electron Microscopy Science Technology Platform, The Francis Crick Institute, 1 Midland Road, London NW1 1BF, UK
| | - Artur Yakimovich
- MRC-Laboratory for Molecular Cell Biology, University College London, Gower Street, London, WC1E 6BT, UK
- Artificial Intelligence for Life Sciences CIC, 40 Gowers Walk, London, E1 8BH, UK
| | - Maria J Mazon-Moya
- Section of Microbiology, MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, UK
| | - Thomas A Hawkins
- Department of Cell and Developmental Biology, University College London, Gower Street, London, WC1E 6BT, UK
| | - Lucy Collinson
- Electron Microscopy Science Technology Platform, The Francis Crick Institute, 1 Midland Road, London NW1 1BF, UK
| | - Jason Mercer
- MRC-Laboratory for Molecular Cell Biology, University College London, Gower Street, London, WC1E 6BT, UK
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, B15 2TT, UK
| | - Eva-Maria Frickel
- Host-Toxoplasma Interaction Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1BF, UK
- Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston, B15 2TT, UK
| | - Serge Mostowy
- Section of Microbiology, MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, UK
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
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Zhao XY, Ewald SE. The molecular biology and immune control of chronic Toxoplasma gondii infection. J Clin Invest 2020; 130:3370-3380. [PMID: 32609097 PMCID: PMC7324197 DOI: 10.1172/jci136226] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Toxoplasma gondii is an incredibly successful parasite owing in part to its ability to persist within cells for the life of the host. Remarkably, at least 350 host species of T. gondii have been described to date, and it is estimated that 30% of the global human population is chronically infected. The importance of T. gondii in human health was made clear with the first reports of congenital toxoplasmosis in the 1940s. However, the AIDS crisis in the 1980s revealed the prevalence of chronic infection, as patients presented with reactivated chronic toxoplasmosis, underscoring the importance of an intact immune system for parasite control. In the last 40 years, there has been tremendous progress toward understanding the biology of T. gondii infection using rodent models, human cell experimental systems, and clinical data. However, there are still major holes in our understanding of T. gondii biology, including the genes controlling parasite development, the mechanisms of cell-intrinsic immunity to T. gondii in the brain and muscle, and the long-term effects of infection on host homeostasis. The need to better understand the biology of chronic infection is underscored by the recent rise in ocular disease associated with emerging haplotypes of T. gondii and our lack of effective treatments to sterilize chronic infection. This Review discusses the cell types and molecular mediators, both host and parasite, that facilitate persistent T. gondii infection. We highlight the consequences of chronic infection for tissue-specific pathology and identify open questions in this area of host-Toxoplasma interactions.
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Mukhopadhyay D, Arranz-Solís D, Saeij JPJ. Toxoplasma GRA15 and GRA24 are important activators of the host innate immune response in the absence of TLR11. PLoS Pathog 2020; 16:e1008586. [PMID: 32453782 PMCID: PMC7274473 DOI: 10.1371/journal.ppat.1008586] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/05/2020] [Accepted: 04/30/2020] [Indexed: 12/13/2022] Open
Abstract
The murine innate immune response against Toxoplasma gondii is predominated by the interaction of TLR11/12 with Toxoplasma profilin. However, mice lacking Tlr11 or humans, who do not have functional TLR11 or TLR12, still elicit a strong innate immune response upon Toxoplasma infection. The parasite factors that determine this immune response are largely unknown. Herein, we investigated two dense granule proteins (GRAs) secreted by Toxoplasma, GRA15 and GRA24, for their role in stimulating the innate immune response in Tlr11-/- mice and in human cells, which naturally lack TLR11/TLR12. Our results show that GRA15 and GRA24 synergistically shape the early immune response and parasite virulence in Tlr11-/- mice, with GRA15 as the predominant effector. Nevertheless, acute virulence in Tlr11-/- mice is still dominated by allelic combinations of ROP18 and ROP5, which are effectors that determine evasion of the immunity-related GTPases. In human macrophages, GRA15 and GRA24 play a major role in the induction of IL12, IL18 and IL1β secretion. We further show that GRA15/GRA24-mediated IL12, IL18 and IL1β secretion activates IFNγ secretion by peripheral blood mononuclear cells (PBMCs), which controls Toxoplasma proliferation. Taken together, our study demonstrates the important role of GRA15 and GRA24 in activating the innate immune response in hosts lacking TLR11.
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Affiliation(s)
- Debanjan Mukhopadhyay
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
| | - David Arranz-Solís
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
| | - Jeroen P. J. Saeij
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
- * E-mail:
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Ketz J, Saxena V, Arregui S, Jackson A, Schwartz GJ, Yagisawa T, Fairchild RL, Hains DS, Schwaderer AL. Developmental loss, but not pharmacological suppression, of renal carbonic anhydrase 2 results in pyelonephritis susceptibility. Am J Physiol Renal Physiol 2020; 318:F1441-F1453. [PMID: 32390512 DOI: 10.1152/ajprenal.00583.2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Carbonic anhydrase II knockout (Car2-/-) mice have depleted numbers of renal intercalated cells, which are increasingly recognized to be innate immune effectors. We compared pyelonephritis susceptibility following reciprocal renal transplantations between Car2-/- and wild-type mice. We examined the effect of pharmacological CA suppression using acetazolamide in an experimental murine model of urinary tract infection. Car2-/- versus wild-type mice were compared for differences in renal innate immunity. In our transplant scheme, mice lacking CA-II in the kidney had increased pyelonephritis risk. Mice treated with acetazolamide had lower kidney bacterial burdens at 6 h postinfection, which appeared to be due to tubular flow from diuresis because comparable results were obtained when furosemide was substituted for acetazolamide. Isolated Car2-/- kidney cells enriched for intercalated cells demonstrated altered intercalated cell innate immune gene expression, notably increased calgizzarin and insulin receptor expression. Intercalated cell number and function along with renal tubular flow are determinants of pyelonephritis risk.
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Affiliation(s)
- John Ketz
- Center for Clinical and Translational Medicine, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Vijay Saxena
- Division of Pediatric Nephrology, Department of Pediatrics, Indiana University, Indianapolis, Indiana
| | - Samuel Arregui
- Division of Pediatric Nephrology, Department of Pediatrics, Indiana University, Indianapolis, Indiana
| | - Ashley Jackson
- Center for Clinical and Translational Medicine, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - George J Schwartz
- Division of Nephrology, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - Takafumi Yagisawa
- Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Robert L Fairchild
- Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio
| | - David S Hains
- Division of Pediatric Nephrology, Department of Pediatrics, Indiana University, Indianapolis, Indiana
| | - Andrew L Schwaderer
- Division of Pediatric Nephrology, Department of Pediatrics, Indiana University, Indianapolis, Indiana
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44
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Park J, Hunter CA. The role of macrophages in protective and pathological responses to Toxoplasma gondii. Parasite Immunol 2020; 42:e12712. [PMID: 32187690 DOI: 10.1111/pim.12712] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/12/2020] [Accepted: 02/24/2020] [Indexed: 02/06/2023]
Abstract
The ability of Toxoplasma gondii to cause clinical disease in immune-competent and immune-deficient hosts coupled with its ease of use in vitro and availability of murine models has led to its use as a model organism to study how the immune system controls an intracellular infection. This article reviews the studies that established the role of the cytokine IFN-γ in the activation of macrophages to control T gondii and the events that lead to the mobilization and expansion of macrophage populations and their ability to limit parasite replication. Macrophages also have pro-inflammatory functions that promote protective NK and T-cell activities as well as regulatory properties that facilitate the resolution of inflammation. Nevertheless, while macrophages are important in determining the outcome of infection, T gondii has evolved mechanisms to subvert macrophage activation and can utilize their migratory activities to promote dissemination and these two properties underlie the ability of this parasite to persist and cause disease.
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Affiliation(s)
- Jeongho Park
- University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, USA.,Kangwon National University College of Veterinary Medicine and Institute of Veterinary Science, Chuncheon, Korea
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Gómez-Chávez F, Cañedo-Solares I, Ortiz-Alegría LB, Flores-García Y, Figueroa-Damián R, Luna-Pastén H, Gómez-Toscano V, López-Candiani C, Arce-Estrada GE, Bonilla-Ríos CA, Mora-González JC, García-Ruiz R, Correa D. A Proinflammatory Immune Response Might Determine Toxoplasma gondii Vertical Transmission and Severity of Clinical Features in Congenitally Infected Newborns. Front Immunol 2020; 11:390. [PMID: 32231666 PMCID: PMC7082359 DOI: 10.3389/fimmu.2020.00390] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/19/2020] [Indexed: 01/01/2023] Open
Abstract
Toxoplasma gondii is the etiological agent of toxoplasmosis. Mother-to-child transmission of this parasite can occur during pregnancy. Newborns with congenital toxoplasmosis may develop central nervous system impairment, with severity ranging from subclinical manifestations to death. A proinflammatory/regulated specific immune profile is crucial in the defense against the parasite; nevertheless, its role in the infected pregnant women and the congenitally infected offspring has been poorly explored, and there is still no consensus about its relation to parasite vertical transmission or to severity and dissemination in the congenitally infected newborns. This work aimed to characterize these relations by means of principal component and principal factor analyses. For this purpose, we determined the specific production of the four immunoglobulin G antibody subclasses, cytokines, and lymphocyte proliferation in the T. gondii–infected pregnant women−10 who transmitted the infection to their offspring and seven who did not—as well as in 11 newborns congenitally infected and grouped according to disease severity (five mild and six moderate/severe) and dissemination (four local and seven disseminated). We found that the immune response of nontransmitter women differed from that of the transmitters, the latter having a stronger proinflammatory response, supporting a previous report. We also found that newborns who developed moderate/severe disease presented higher levels of lymphocyte proliferation, particularly of CD8+ and CD19+ cells, a high proportion of tumor necrosis factor α producers, and reduced expression of the immune modulator transforming growth factor β, as opposed to children who developed mild clinical complications. Our results suggest that a distinctive, not regulated, proinflammatory immune response might favor T. gondii vertical transmission and the development of severe clinical manifestations in congenitally infected newborns.
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Affiliation(s)
- Fernando Gómez-Chávez
- Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, Mexico.,Cátedras CONACyT-Instituto Nacional de Pediatría, Mexico City, Mexico.,Departamento de Formación Básica Disciplinaria, ENMyH-IPN, Mexico City, Mexico
| | | | | | | | | | - Héctor Luna-Pastén
- Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, Mexico
| | | | | | | | | | | | - Ricardo García-Ruiz
- Laboratorio de Cannabinoides, Facultad de Medicina, UNAM, Mexico City, Mexico
| | - Dolores Correa
- Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, Mexico
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46
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Jiang H, Li S, Liu W, Zheng H, Liu J, Zhang Y. Geometry-Aware Cell Detection with Deep Learning. mSystems 2020; 5:e00840-19. [PMID: 32019836 PMCID: PMC7002118 DOI: 10.1128/msystems.00840-19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/15/2020] [Indexed: 11/20/2022] Open
Abstract
Analyzing cells and tissues under a microscope is a cornerstone of biological research and clinical practice. However, the challenge faced by conventional microscopy image analysis is the fact that cell recognition through a microscope is still time-consuming and lacks both accuracy and consistency. Despite enormous progress in computer-aided microscopy cell detection, especially with recent deep-learning-based techniques, it is still difficult to translate an established method directly to a new cell target without extensive modification. The morphology of a cell is complex and highly varied, but it has long been known that cells show a nonrandom geometrical order in which a distinct and defined shape can be formed in a given type of cell. Thus, we have proposed a geometry-aware deep-learning method, geometric-feature spectrum ExtremeNet (GFS-ExtremeNet), for cell detection. GFS-ExtremeNet is built on the framework of ExtremeNet with a collection of geometric features, resulting in the accurate detection of any given cell target. We obtained promising detection results with microscopic images of publicly available mammalian cell nuclei and newly collected protozoa, whose cell shapes and sizes varied. Even more striking, our method was able to detect unicellular parasites within red blood cells without misdiagnosis of each other.IMPORTANCE Automated diagnostic microscopy powered by deep learning is useful, particularly in rural areas. However, there is no general method for object detection of different cells. In this study, we developed GFS-ExtremeNet, a geometry-aware deep-learning method which is based on the detection of four extreme key points for each object (topmost, bottommost, rightmost, and leftmost) and its center point. A postprocessing step, namely, adjacency spectrum, was employed to measure whether the distances between the key points were below a certain threshold for a particular cell candidate. Our newly proposed geometry-aware deep-learning method outperformed other conventional object detection methods and could be applied to any type of cell with a certain geometrical order. Our GFS-ExtremeNet approach opens a new window for the development of an automated cell detection system.
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Affiliation(s)
- Hao Jiang
- College of Science, Harbin Institute of Technology, Shenzhen, China
| | - Sen Li
- College of Science, Harbin Institute of Technology, Shenzhen, China
| | - Weihuang Liu
- College of Science, Harbin Institute of Technology, Shenzhen, China
| | - Hongjin Zheng
- College of Science, Harbin Institute of Technology, Shenzhen, China
| | - Jinghao Liu
- College of Science, Harbin Institute of Technology, Shenzhen, China
| | - Yang Zhang
- College of Science, Harbin Institute of Technology, Shenzhen, China
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47
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Affiliation(s)
- Daniel Fisch
- Host-Toxoplasma Interaction Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Barbara Clough
- Host-Toxoplasma Interaction Laboratory, The Francis Crick Institute, London, United Kingdom
| | - Eva-Maria Frickel
- Host-Toxoplasma Interaction Laboratory, The Francis Crick Institute, London, United Kingdom
- * E-mail:
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48
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Sasai M, Yamamoto M. Innate, adaptive, and cell-autonomous immunity against Toxoplasma gondii infection. Exp Mol Med 2019; 51:1-10. [PMID: 31827072 PMCID: PMC6906438 DOI: 10.1038/s12276-019-0353-9] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 12/15/2022] Open
Abstract
Hosts have been fighting pathogens throughout the evolution of all infectious diseases. Toxoplasma gondii is one of the most common infectious agents in humans but causes only opportunistic infection in healthy individuals. Similar to antimicrobial immunity against other organisms, the immune response against T. gondii activates innate immunity and in turn induces acquired immune responses. After activation of acquired immunity, host immune cells robustly produce the proinflammatory cytokine interferon-γ (IFN-γ), which activates a set of IFN-γ-inducible proteins, including GTPases. IFN-inducible GTPases are essential for cell-autonomous immunity and are specialized for effective clearance and growth inhibition of T. gondii by accumulating in parasitophorous vacuole membranes. Recent studies suggest that the cell-autonomous immune response plays a protective role in host defense against not only T. gondii but also various intracellular bacteria. Moreover, the negative regulatory mechanisms of such strong immune responses are also important for host survival after infection. In this review, we will discuss in detail recent advances in the understanding of host defenses against T. gondii and the roles played by cell-autonomous immune responses. Researchers are extensively studying immune responses to the single-celled parasite Toxoplasma gondii, which infects around one-third of humans, often harmlessly, but can cause life-threatening toxoplasmosis infections in patients with weakened immune systems. Masahiro Yamamoto and Miwa Sasai at Osaka University in Japan review recent advances in understanding the interactions between the immune system and the parasite. They consider non-specific ‘innate’ immune responses and also the ‘acquired’ responses that target specific parts of the parasite, referred to as antigens. Methods that selectively switch off genes in mice are revealing details presumed to also be relevant for humans. Significant molecules, molecular signaling pathways and immune-regulating processes are being identified. Recent studies suggest cell-autonomous immunity, the ability of host cells to defend themselves against attack, plays a significant role in fighting Toxoplasma gondii infection.
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Affiliation(s)
- Miwa Sasai
- Department of Immunoparasitology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.,Laboratory of Immunoparasitology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Masahiro Yamamoto
- Department of Immunoparasitology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan. .,Laboratory of Immunoparasitology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan.
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49
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Hypericum erectum alcoholic extract inhibits Toxoplasma growth and Entamoeba encystation: an exploratory study on the anti-protozoan potential. J Nat Med 2019; 74:294-305. [DOI: 10.1007/s11418-019-01369-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 10/24/2019] [Indexed: 12/29/2022]
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50
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Zhang C, Zhang Q, Wang J, Tian J, Song Y, Xie H, Chang M, Nie P, Gao Q, Zou J. Transcriptomic responses of S100 family to bacterial and viral infection in zebrafish. FISH & SHELLFISH IMMUNOLOGY 2019; 94:685-696. [PMID: 31546038 DOI: 10.1016/j.fsi.2019.09.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/12/2019] [Accepted: 09/18/2019] [Indexed: 06/10/2023]
Abstract
The S100 family proteins are a group of small acidic polypeptides and have diverse functions in regulating many aspects of physiological processes. They are structurally conserved and possess two EF-hands which are central for calcium-mediated functions. In this study, 14 S100 cDNA sequences were determined in zebrafish and their genomic organizations confirmed. Re-analyzing the gene synteny of the S100 loci identified two major S100 loci in Chr16 and Chr19 which share remarkable conservation with the S100 locus in human Chr1, suggesting they may have evolved from a single locus during the teleost specific whole genome duplication event. It appears that the homologues of human S100G and S100P have been lost in zebrafish. Expression analysis reveals that S100W, ICN1 and ICN2 are markedly expressed in embryos. Further, the transcripts of S100 genes are relatively abundant in mucosal tissues such as gills and gut. Intraperitoneal injection of poly(I:C) resulted in up-regulation of most S100 genes in the gut and spleen, with highest induction of S100V2 and S100Z detected. In fish challenged with spring viremia of carp virus (SVCV), expression of most S100 family genes was increased in the spleen between day 1 and 7 post infection, with consistent induction seen for the S100A1, S100A10b, S100B, S100ICN1, S100T, S100U, S100V1 and S100Z. Interestingly, intraperitoneal injection of Edwardsiella tarda down-regulated S100 expression in the gut but resulted in induction in the spleen. The results demonstrate that the S100 family genes are differentially modulated by bacterial and viral pathogens in zebrafish.
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Affiliation(s)
- Chang Zhang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Qin Zhang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Junya Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Jiayin Tian
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Yunjie Song
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China
| | - Haixia Xie
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei Province, 430072, China
| | - Mingxian Chang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei Province, 430072, China
| | - Pin Nie
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei Province, 430072, China
| | - Qian Gao
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China.
| | - Jun Zou
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
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