1
|
Shafiei-Jahani P, Yan S, Kazemi MH, Li X, Akbari A, Sakano K, Sakano Y, Hurrell BP, Akbari O. CB2 stimulation of adipose resident ILC2s orchestrates immune balance and ameliorates type 2 diabetes mellitus. Cell Rep 2024; 43:114434. [PMID: 38963763 DOI: 10.1016/j.celrep.2024.114434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/22/2024] [Accepted: 06/19/2024] [Indexed: 07/06/2024] Open
Abstract
Development of type 2 diabetes mellitus (T2DM) is associated with low-grade chronic type 2 inflammation and disturbance of glucose homeostasis. Group 2 innate lymphoid cells (ILC2s) play a critical role in maintaining adipose homeostasis via the production of type 2 cytokines. Here, we demonstrate that CB2, a G-protein-coupled receptor (GPCR) and member of the endocannabinoid system, is expressed on both visceral adipose tissue (VAT)-derived murine and human ILC2s. Moreover, we utilize a combination of ex vivo and in vivo approaches to explore the functional and therapeutic impacts of CB2 engagement on VAT ILC2s in a T2DM model. Our results show that CB2 stimulation of ILC2s protects against insulin-resistance onset, ameliorates glucose tolerance, and reverses established insulin resistance. Our mechanistic studies reveal that the therapeutic effects of CB2 are mediated through activation of the AKT, ERK1/2, and CREB pathways on ILC2s. The results reveal that the CB2 agonist can serve as a candidate for the prevention and treatment of T2DM.
Collapse
Affiliation(s)
- Pedram Shafiei-Jahani
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Shi Yan
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Mohammad H Kazemi
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Xin Li
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Amitis Akbari
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Kei Sakano
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Yoshihiro Sakano
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Benjamin P Hurrell
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Omid Akbari
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
| |
Collapse
|
2
|
Szabo EK, Bowhay C, Forrester E, Liu H, Dong B, Coria AL, Perera S, Fung B, Badawadagi N, Gaio C, Bailey K, Ritz M, Bowron J, Ariyaratne A, Finney CAM. Heligmosomoides bakeri and Toxoplasma gondii co-infection leads to increased mortality associated with changes in immune resistance in the lymphoid compartment and disease pathology. PLoS One 2024; 19:e0292408. [PMID: 38950025 PMCID: PMC11216590 DOI: 10.1371/journal.pone.0292408] [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: 09/26/2023] [Accepted: 03/14/2024] [Indexed: 07/03/2024] Open
Abstract
Co-infections are a common reality but understanding how the immune system responds in this context is complex and can be unpredictable. Heligmosomoides bakeri (parasitic roundworm, previously Heligmosomoides polygyrus) and Toxoplasma gondii (protozoan parasite) are well studied organisms that stimulate a characteristic Th2 and Th1 response, respectively. Several studies have demonstrated reduced inflammatory cytokine responses in animals co-infected with such organisms. However, while general cytokine signatures have been examined, the impact of the different cytokine producing lymphocytes on parasite control/clearance is not fully understood. We investigated five different lymphocyte populations (NK, NKT, γδ T, CD4+ T and CD8+ T cells), five organs (small intestine, Peyer's patches, mesenteric lymph nodes, spleen and liver), and 4 cytokines (IFN©, IL-4, IL-10 and IL-13) at two different time points (days 5 and 10 post T. gondii infection). We found that co-infected animals had significantly higher mortality than either single infection. This was accompanied by transient and local changes in parasite loads and cytokine profiles. Despite the early changes in lymphocyte and cytokine profiles, severe intestinal pathology in co-infected mice likely contributed to early mortality due to significant damage by both parasites in the small intestine. Our work demonstrates the importance of taking a broad view during infection research, studying multiple cell types, organs/tissues and time points to link and/or uncouple immunological from pathological findings. Our results provide insights into how co-infection with parasites stimulating different arms of the immune system can lead to drastic changes in infection dynamics.
Collapse
Affiliation(s)
- Edina K. Szabo
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Christina Bowhay
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Emma Forrester
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Holly Liu
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Beverly Dong
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Aralia Leon Coria
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Shashini Perera
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Beatrice Fung
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Namratha Badawadagi
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Camila Gaio
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Kayla Bailey
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Manfred Ritz
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Joel Bowron
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Anupama Ariyaratne
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| | - Constance A. M. Finney
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, Alberta, Canada
- Host-Parasite Interactions Research Training Network, University of Calgary, Calgary, Alberta, Canada
| |
Collapse
|
3
|
Uzelac A, Klun I, Djurković-Djaković O. Early immune response to Toxoplasma gondii lineage III isolates of different virulence phenotype. Front Cell Infect Microbiol 2024; 14:1414067. [PMID: 38912206 PMCID: PMC11190176 DOI: 10.3389/fcimb.2024.1414067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 05/27/2024] [Indexed: 06/25/2024] Open
Abstract
Introduction Toxoplasma gondii is an intracellular parasite of importance to human and veterinary health. The structure and diversity of the genotype population of T. gondii varies considerably with respect to geography, but three lineages, type I, II and III, are distributed globally. Lineage III genotypes are the least well characterized in terms of biology, host immunity and virulence. Once a host is infected with T.gondii, innate immune mechanisms are engaged to reduce the parasite burden in tissues and create a pro-inflammatory environment in which the TH1 response develops to ensure survival. This study investigated the early cellular immune response of Swiss-Webster mice post intraperitoneal infection with 10 tachyzoites of four distinct non-clonal genotypes of lineage III and a local isolate of ToxoDB#1. The virulence phenotype, cumulative mortality (CM) and allele profiles of ROP5, ROP16, ROP18 and GRA15 were published previously. Methods Parasite dissemination in different tissues was analyzed by real-time PCR and relative expression levels of IFNγ, IL12-p40, IL-10 and TBX21 in the cervical lymph nodes (CLN), brain and spleen were calculated using the ΔΔCt method. Stage conversion was determined by detection of the BAG1 transcript in the brain. Results Tissue dissemination depends on the virulence phenotype but not CM, while the TBX21 and cytokine levels and kinetics correlate better with CM than virulence phenotype. The earliest detection of BAG1 was seven days post infection. Only infection with the genotype of high CM (69.4%) was associated with high T-bet levels in the CLN 24 h and high systemic IFNγ expression which was sustained over the first week, while infection with genotypes of lower CM (38.8%, 10.7% and 6.8%) is characterized by down-regulation and/or low systemic levels of IFNγ. The response intensity, as assessed by cytokine levels, to the genotype of high CM wanes over time, while it increases gradually to genotypes of lower CM. Discussion The results point to the conclusion that the immune response is not correlated with the virulence phenotype and/or allele profile, but an early onset, intense pro-inflammatory response is characteristic of genotypes with high CM. Additionally, high IFNγ level in the brain may hamper stage conversion.
Collapse
Affiliation(s)
- Aleksandra Uzelac
- Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | | | | |
Collapse
|
4
|
Liang Y, Wang H, Sun K, Sun J, Soong L. Lack of the IFN-γ signal leads to lethal Orientia tsutsugamushi infection in mice with skin eschar lesions. PLoS Pathog 2024; 20:e1012020. [PMID: 38743761 PMCID: PMC11125519 DOI: 10.1371/journal.ppat.1012020] [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: 02/04/2024] [Revised: 05/24/2024] [Accepted: 04/30/2024] [Indexed: 05/16/2024] Open
Abstract
Scrub typhus is an acute febrile disease due to Orientia tsutsugamushi (Ot) infection and can be life-threatening with organ failure, hemorrhage, and fatality. Yet, little is known as to how the host reacts to Ot bacteria at early stages of infection; no reports have addressed the functional roles of type I versus type II interferon (IFN) responses in scrub typhus. In this study, we used comprehensive intradermal (i.d.) inoculation models and two clinically predominant Ot strains (Karp and Gilliam) to uncover early immune events. Karp infection induced sequential expression of Ifnb and Ifng in inflamed skin and draining lymph nodes at days 1 and 3 post-infection. Using double Ifnar1-/-Ifngr1-/- and Stat1-/- mice, we found that deficiency in IFN/STAT1 signaling resulted in lethal infection with profound pathology and skin eschar lesions, which resembled to human scrub typhus. Further analyses demonstrated that deficiency in IFN-γ, but not IFN-I, resulted in impaired NK cell and macrophage activation and uncontrolled bacterial growth and dissemination, leading to metabolic dysregulation, excessive inflammatory cell infiltration, and exacerbated tissue damage. NK cells were found to be the major cellular source of innate IFN-γ, contributing to the initial Ot control in the draining lymph nodes. In vitro studies with dendritic cell cultures revealed a superior antibacterial effect offered by IFN-γ than IFN-β. Comparative in vivo studies with Karp- and Gilliam-infection revealed a crucial role of IFN-γ signaling in protection against progression of eschar lesions and Ot infection lethality. Additionally, our i.d. mouse models of lethal infection with eschar lesions are promising tools for immunological study and vaccine development for scrub typhus.
Collapse
Affiliation(s)
- Yuejin Liang
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, United States of America
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, United States of America
- Center for Tropical Diseases, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Hui Wang
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, United States of America
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Keer Sun
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, United States of America
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Jiaren Sun
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, United States of America
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, United States of America
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Lynn Soong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, United States of America
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, Texas, United States of America
- Center for Tropical Diseases, University of Texas Medical Branch, Galveston, Texas, United States of America
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
| |
Collapse
|
5
|
Schanz ML, Bitters AM, Zadeii KE, Joulani D, Chamberlain AK, López-Yglesias AH. IL-12 Mediates T-bet-Expressing Myeloid Cell-Dependent Host Resistance against Toxoplasma gondii. Immunohorizons 2024; 8:355-362. [PMID: 38687282 PMCID: PMC11066714 DOI: 10.4049/immunohorizons.2400029] [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: 04/05/2024] [Accepted: 04/15/2024] [Indexed: 05/02/2024] Open
Abstract
To defend against intracellular pathogens such as Toxoplasma gondii, the host generates a robust type 1 immune response. Specifically, host defense against T. gondii is defined by an IL-12-dependent IFN-γ response that is critical for host resistance. Previously, we demonstrated that host resistance is mediated by T-bet-dependent ILC-derived IFN-γ by maintaining IRF8+ conventional type 1 dendritic cells during parasitic infection. Therefore, we hypothesized that innate lymphoid cells are indispensable for host survival. Surprisingly, we observed that T-bet-deficient mice succumb to infection quicker than do mice lacking lymphocytes, suggesting an unknown T-bet-dependent-mediated host defense pathway. Analysis of parasite-mediated inflammatory myeloid cells revealed a novel subpopulation of T-bet+ myeloid cells (TMCs). Our results reveal that TMCs have the largest intracellular parasite burden compared with other professional phagocytes, suggesting they are associated with active killing of T. gondii. Mechanistically, we established that IL-12 is necessary for the induction of inflammatory TMCs during infection and these cells are linked to a role in host survival.
Collapse
Affiliation(s)
- Madison L. Schanz
- Department of Microbiology and Immunology, Indiana University School of Medicine–Terre Haute, Terre Haute, IN
| | - Abigail M. Bitters
- Department of Microbiology and Immunology, Indiana University School of Medicine–Terre Haute, Terre Haute, IN
| | - Kamryn E. Zadeii
- Department of Biology, Indiana State University, Terre Haute, IN
| | - Dana Joulani
- Department of Microbiology and Immunology, Indiana University School of Medicine–Terre Haute, Terre Haute, IN
| | - Angela K. Chamberlain
- Department of Microbiology and Immunology, Indiana University School of Medicine–Terre Haute, Terre Haute, IN
| | - Américo H. López-Yglesias
- Department of Microbiology and Immunology, Indiana University School of Medicine–Terre Haute, Terre Haute, IN
| |
Collapse
|
6
|
Liu M, Hu S, Yan N, Popowski KD, Cheng K. Inhalable extracellular vesicle delivery of IL-12 mRNA to treat lung cancer and promote systemic immunity. NATURE NANOTECHNOLOGY 2024; 19:565-575. [PMID: 38212521 DOI: 10.1038/s41565-023-01580-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 11/21/2023] [Indexed: 01/13/2024]
Abstract
Lung carcinoma is one of the most common cancers and has one of the lowest survival rates in the world. Cytokines such as interleukin-12 (IL-12) have demonstrated considerable potential as robust tumour suppressors. However, their applications are limited due to off-target toxicity. Here we report on a strategy involving the inhalation of IL-12 messenger RNA, encapsulated within extracellular vesicles. Inhalation and preferential uptake by cancer cells results in targeted delivery and fewer systemic side effects. The IL-12 messenger RNA generates interferon-γ production in both innate and adaptive immune-cell populations. This activation consequently incites an intense activation state in the tumour microenvironment and augments its immunogenicity. The increased immune response results in the expansion of tumour cytotoxic immune effector cells, the formation of immune memory, improved antigen presentation and tumour-specific T cell priming. The strategy is demonstrated against primary neoplastic lesions and provides profound protection against subsequent tumour rechallenge. This shows the potential for locally delivered cytokine-based immunotherapies to address orthotopic and metastatic lung tumours.
Collapse
Affiliation(s)
- Mengrui Liu
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - Shiqi Hu
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - Na Yan
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - Kristen D Popowski
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill/Raleigh, NC, USA
- Department of Molecular Biomedical Sciences, North Carolina State University, Raleigh, NC, USA
| | - Ke Cheng
- Department of Biomedical Engineering, Columbia University, New York, NY, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA.
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill/Raleigh, NC, USA.
- Department of Molecular Biomedical Sciences, North Carolina State University, Raleigh, NC, USA.
| |
Collapse
|
7
|
Aldridge DL, Moodley D, Park J, Phan AT, Rausch M, White KF, Ren Y, Golin K, Radaelli E, Kedl R, Holland PM, Hill J, Hunter CA. Endogenous IL-27 during toxoplasmosis limits early monocyte responses and their inflammatory activation by pathological T cells. mBio 2024; 15:e0008324. [PMID: 38376210 PMCID: PMC10936422 DOI: 10.1128/mbio.00083-24] [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: 01/16/2024] [Accepted: 01/24/2024] [Indexed: 02/21/2024] Open
Abstract
Mice that lack the genes for IL-27, or the IL-27 receptor, and infected with Toxoplasma gondii develop T cell-mediated pathology. Here, studies were performed to determine the impact of endogenous IL-27 on the immune response to T. gondii in wild-type (WT) mice. Analysis of infected mice revealed the early production of IL-27p28 by a subset of Ly6Chi, inflammatory monocytes, and sustained IL-27p28 production at sites of acute and chronic infection. Administration of anti-IL-27p28 prior to infection resulted in an early (day 5) increase in levels of macrophage and granulocyte activation, as well as enhanced effector T cell responses, as measured by both cellularity, cytokine production, and transcriptional profiling. This enhanced acute response led to immune pathology, while blockade during the chronic phase of infection resulted in enhanced T cell responses but no systemic pathology. In the absence of IL-27, the enhanced monocyte responses observed at day 10 were a secondary consequence of activated CD4+ T cells. Thus, in WT mice, IL-27 has distinct suppressive effects that impact innate and adaptive immunity during different phases of this infection. IMPORTANCE The molecule IL-27 is critical in limiting the immune response to the parasite Toxoplasma gondii. In the absence of IL-27, a lethal, overactive immune response develops during infection. However, when exactly in the course of infection this molecule is needed was unclear. By selectively inhibiting IL-27 during this parasitic infection, we discovered that IL-27 was only needed during, but not prior to, infection. Additionally, IL-27 is only needed in the active areas in which the parasite is replicating. Finally, our work found that a previously unstudied cell type, monocytes, was regulated by IL-27, which contributes further to our understanding of the regulatory networks established by this molecule.
Collapse
Affiliation(s)
- Daniel L. Aldridge
- University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania, USA
| | | | - Jeongho Park
- University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania, USA
- Kangwon National University College of Veterinary Medicine and Institute of Veterinary Science, Chuncheon, South Korea
- Multidimensional Genomics Research Center, Kangwon National University, Chuncheon, South Korea
| | - Anthony T. Phan
- University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania, USA
| | | | | | - Yue Ren
- Surface Oncology, Cambridge, Massachusetts, USA
| | - Karin Golin
- Surface Oncology, Cambridge, Massachusetts, USA
| | - Enrico Radaelli
- Comparative Pathology Core, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ross Kedl
- Surface Oncology, Cambridge, Massachusetts, USA
- University of Colorado, Anschuitz Medical Campus, Aurora, Colorado, USA
| | | | | | - Christopher A. Hunter
- University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania, USA
| |
Collapse
|
8
|
Zhang T, Pang C, Xu M, Zhao Q, Hu Z, Jiang X, Guo M. The role of immune system in atherosclerosis: Molecular mechanisms, controversies, and future possibilities. Hum Immunol 2024; 85:110765. [PMID: 38369442 DOI: 10.1016/j.humimm.2024.110765] [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: 07/17/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/20/2024]
Abstract
Numerous cardiovascular disorders have atherosclerosis as their pathological underpinning. Numerous studies have demonstrated that, with the aid of pattern recognition receptors, cytokines, and immunoglobulins, innate immunity, represented by monocytes/macrophages, and adaptive immunity, primarily T/B cells, play a critical role in controlling inflammation and abnormal lipid metabolism in atherosclerosis. Additionally, the finding of numerous complement components in atherosclerotic plaques suggests yet again how heavily the immune system controls atherosclerosis. Therefore, it is essential to have a thorough grasp of how the immune system contributes to atherosclerosis. The specific molecular mechanisms involved in the activation of immune cells and immune molecules in atherosclerosis, the controversy surrounding some immune cells in atherosclerosis, and the limitations of extrapolating from relevant animal models to humans were all carefully reviewed in this review from the three perspectives of innate immunity, adaptive immunity, and complement system. This could provide fresh possibilities for atherosclerosis research and treatment in the future.
Collapse
Affiliation(s)
- Tianle Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Chenxu Pang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Mengxin Xu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Qianqian Zhao
- School of Medical Technology, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Zhijie Hu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Xijuan Jiang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China.
| | - Maojuan Guo
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China.
| |
Collapse
|
9
|
Pereira M, Ramalho T, Andrade WA, Durso DF, Souza MC, Fitzgerald KA, Golenbock DT, Silverman N, Gazzinelli RT. The IRAK1/IRF5 axis initiates IL-12 response by dendritic cells and control of Toxoplasma gondii infection. Cell Rep 2024; 43:113795. [PMID: 38367238 DOI: 10.1016/j.celrep.2024.113795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/19/2023] [Accepted: 01/30/2024] [Indexed: 02/19/2024] Open
Abstract
Activation of endosomal Toll-like receptor (TLR) 7, TLR9, and TLR11/12 is a key event in the resistance against the parasite Toxoplasma gondii. Endosomal TLR engagement leads to expression of interleukin (IL)-12 via the myddosome, a protein complex containing MyD88 and IL-1 receptor-associated kinase (IRAK) 4 in addition to IRAK1 or IRAK2. In murine macrophages, IRAK2 is essential for IL-12 production via endosomal TLRs but, surprisingly, Irak2-/- mice are only slightly susceptible to T. gondii infection, similar to Irak1-/- mice. Here, we report that upon T. gondii infection IL-12 production by different cell populations requires either IRAK1 or IRAK2, with conventional dendritic cells (DCs) requiring IRAK1 and monocyte-derived DCs (MO-DCs) requiring IRAK2. In both populations, we identify interferon regulatory factor 5 as the main transcription factor driving the myddosome-dependent IL-12 production during T. gondii infection. Consistent with a redundant role of DCs and MO-DCs, mutations that affect IL-12 production in both cell populations show high susceptibility to infection in vivo.
Collapse
Affiliation(s)
- Milton Pereira
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA.
| | - Theresa Ramalho
- Department of Molecular, Cell, and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Warrison A Andrade
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Danielle F Durso
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Maria C Souza
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Katherine A Fitzgerald
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Douglas T Golenbock
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Neal Silverman
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Ricardo T Gazzinelli
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA; Centro de Tecnologia de Vacinas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil.
| |
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
Saadh MJ, Rasulova I, Khalil M, Farahim F, Sârbu I, Ciongradi CI, Omar TM, Alhili A, Jawad MJ, Hani T, Ali T, Lakshmaiya N. Natural killer cell-mediated immune surveillance in cancer: Role of tumor microenvironment. Pathol Res Pract 2024; 254:155120. [PMID: 38280274 DOI: 10.1016/j.prp.2024.155120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/29/2024]
Abstract
In the immunological surveillance against cancer, natural killer (NK) cells are essential effectors that help eradicate altered cells. The complex interactions that occur between NK cells and the tumor microenvironment (TME) are thoroughly examined in this review. The review examines how cytokine stimulation affects NK cell activation, focusing on the dynamic modulation of NK cell function within the TME. It looks at NK cell-related biomarkers such as PD-1/PD-L1, methylation HOXA9 (Homeobox A9), Stroma AReactive Invasion Front Areas (SARIFA), and NKG2A/HLA-E, providing critical information about prognosis and treatment outcomes. The changing landscape of immunotherapies-including checkpoint inhibitors, CAR-NK cells, and cytokine-based interventions-is examined in the context of enhancing NK cell activity. The review highlights the potential pathways for precision medicine going forward, focusing on customized immunotherapies based on unique biomarker profiles and investigating combination medicines to produce more robust anti-tumor responses.
Collapse
Affiliation(s)
- Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman 11831, Jordan; Applied Science Research Center. Applied Science Private University, Amman, Jordan
| | - Irodakhon Rasulova
- MD, PhD, Senior Researcher, School of Humanities, Natural & Social Sciences, New Uzbekistan University, 54 Mustaqillik Ave., Tashkent, 100007, Uzbekistan; Department of Public Health, Samarkand State Medical University, Amir Temur street 18, Samarkand, Uzbekistan
| | | | - Farha Farahim
- Department of Nursing, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Ioan Sârbu
- 2nd Department of Surgery-Pediatric Surgery and Orthopedics, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iași, Romania.
| | - Carmen Iulia Ciongradi
- 2nd Department of Surgery-Pediatric Surgery and Orthopedics, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iași, Romania.
| | - Thabit Moath Omar
- Department of Medical Laboratory Technics, Al-Noor University College, Nineveh, Iraq
| | - Ahmed Alhili
- Medical Technical College, Al-Farahidi University, Iraq
| | | | - Thamer Hani
- Dentistry Department, Al-Turath University College, Baghdad, Iraq
| | - Talat Ali
- Department of Basic Medical Sciences, King Khalid University, Abha, Kingdom of Saudi Arabia
| | - Natrayan Lakshmaiya
- Department of Mechanical Engineering, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India
| |
Collapse
|
12
|
Cordeiro FP, Marchiori LLM, Teixeira DC, Andraus RAC, Poli RC. Plasma Levels of Interferon Gamma associated with Hearing Loss and Hearing Loss Sensation through the Handicap Questionnaire Inventory for the Elderly Screening Version. Noise Health 2024; 26:44-50. [PMID: 38570310 PMCID: PMC11141700 DOI: 10.4103/nah.nah_4_23] [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: 01/23/2023] [Revised: 04/14/2023] [Accepted: 11/21/2023] [Indexed: 04/05/2024] Open
Abstract
OBJECTIVE The aim of this study was to verify the association between the auditory handicap found in the Hearing Handicap Inventory for the Elderly-Screening Version (HHIE-S) questionnaire and hearing loss and the plasma levels of inflammatory biomarkers. MATERIALS AND METHODS Cross-sectional study with 76 participants, 67 (88%) females and 9 (12%) males, with a mean age of 70 years. Tonal threshold audiometry and self-assessment with HHIE-S questionnaire were performed to measure the plasma levels of interleukin-2 (IL-2), IL-4, IL-6, and IL-10; tumor necrosis factor alpha; and interferon gamma (IFN-γ) flow cytometry method. For all data analyzed, the significance level adopted was P < 0.05 and 95% confidence interval. RESULTS An inverse correlation was observed between the increase in plasma levels of IFN-γ and normal auditory handicap (P = 0.015; rs = -0.280). The severe handicap group showed an increase in the averages I (P = 0.005; rs = 0.350) and II (P = 0.016; rs = 0.368) in the right ear and the light/moderate handicap group increased the means I (P = 0.027; rs = 0.350) and II (P = 0.046; rs = 0.310) of the left ear. A statistically significant association was found between the speech recognition threshold (SRT) test results of the right ear and the severe handicap group (P = 0.002; rs = 0.271). CONCLUSIONS There was an association between the increase in plasma levels of IFN-γ and normal auditory handicap. Additionally, statistically significant associations were observed between the mild/moderate and severe handicap groups with the increase in hearing means and an increase in SRT associated with the severe handicap group.
Collapse
Affiliation(s)
| | | | | | | | - Regina Célia Poli
- Professor of the Master’s and Doctor’s Degree Associated in Rehabilitation Sciences UEL-UNOPAR
| |
Collapse
|
13
|
Jafari MM, Azimzadeh Tabrizi Z, Dayer MS, Kazemi-Sefat NA, Mohtashamifard M, Mohseni R, Bagheri A, Bahadory S, Karimipour-Saryazdi A, Ghaffarifar F. Immune system roles in pathogenesis, prognosis, control, and treatment of Toxoplasma gondii infection. Int Immunopharmacol 2023; 124:110872. [PMID: 37660595 DOI: 10.1016/j.intimp.2023.110872] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/25/2023] [Accepted: 08/27/2023] [Indexed: 09/05/2023]
Abstract
Toxoplasma gondii is the protozoan causative agent of toxoplasmosis in humans and warm-blooded animals. Recent studies have illustrated that the immune system plays a pivotal role in the pathogenesis of toxoplasmosis by triggering immune cytokines like IL-12, TNF-α, and IFN-γ and immune cells like DCs, Th1, and Th17. On the other hand, some immune components can serve as prognosis markers of toxoplasmosis. In healthy people, the disease is often asymptomatic, but immunocompromised people and newborns may suffer severe symptoms and complications. Therefore, the immune prognostic markers may provide tools to measure the disease progress and help patients to avoid further complications. Immunotherapies using monoclonal antibody, cytokines, immune cells, exosomes, novel vaccines, and anti-inflammatory molecules open new horizon for toxoplasmosis treatment. In this review article, we discussed the immunopathogenesis, prognosis, and immunotherapy of Toxoplasma gondii infection.
Collapse
Affiliation(s)
- Mohammad Mahdi Jafari
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Zahra Azimzadeh Tabrizi
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Saaid Dayer
- Department of Parasitology and Medical Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Mahshid Mohtashamifard
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Rahimeh Mohseni
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Atefeh Bagheri
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeed Bahadory
- Department of Parasitology and Medical Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Amir Karimipour-Saryazdi
- Department of Parasitology and Medical Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Ghaffarifar
- Department of Parasitology and Medical Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| |
Collapse
|
14
|
Du X, Li M, Huan C, Lv G. Dendritic cells in liver transplantation immune response. Front Cell Dev Biol 2023; 11:1277743. [PMID: 37900282 PMCID: PMC10606587 DOI: 10.3389/fcell.2023.1277743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 09/27/2023] [Indexed: 10/31/2023] Open
Abstract
Dendritic cells (DCs) are the most powerful antigen presenting cells (APCs), they are considered one of the key regulatory factors in the liver immune system. There is currently much interest in modulating DC function to improve transplant immune response. In liver transplantation, DCs participate in both the promotion and inhibition of the alloreponse by adopting different phenotypes and function. Thus, in this review, we discussed the origin, maturation, migration and pathological effects of several DC subsets, including the conventional DC (cDC), plasmacytoid DC (pDC) and monocyte-derived DC (Mo-DC) in liver transplantation, and we summarized the roles of these DC subsets in liver transplant rejection and tolerance. In addition, we also outlined the latest progress in DC-based related treatment regimens. Overall, our discussion provides a beneficial resource for better understanding the biology of DCs and their manipulation to improve the immune adaptability of patients in transplant status.
Collapse
Affiliation(s)
- Xiaodong Du
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Mingqian Li
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Chen Huan
- Center of Infectious Diseases and Pathogen Biology, Institute of Virology and AIDS Research, Key Laboratory of Organ Regeneration and Transplantation of The Ministry of Education, The First Hospital of Jilin University, Changchun, China
| | - Guoyue Lv
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| |
Collapse
|
15
|
Rodriguez-Rodriguez L, Gillet L, Machiels B. Shaping of the alveolar landscape by respiratory infections and long-term consequences for lung immunity. Front Immunol 2023; 14:1149015. [PMID: 37081878 PMCID: PMC10112541 DOI: 10.3389/fimmu.2023.1149015] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/15/2023] [Indexed: 04/07/2023] Open
Abstract
Respiratory infections and especially viral infections, along with other extrinsic environmental factors, have been shown to profoundly affect macrophage populations in the lung. In particular, alveolar macrophages (AMs) are important sentinels during respiratory infections and their disappearance opens a niche for recruited monocytes (MOs) to differentiate into resident macrophages. Although this topic is still the focus of intense debate, the phenotype and function of AMs that recolonize the niche after an inflammatory insult, such as an infection, appear to be dictated in part by their origin, but also by local and/or systemic changes that may be imprinted at the epigenetic level. Phenotypic alterations following respiratory infections have the potential to shape lung immunity for the long-term, leading to beneficial responses such as protection against allergic airway inflammation or against other infections, but also to detrimental responses when associated with the development of immunopathologies. This review reports the persistence of virus-induced functional alterations in lung macrophages, and discusses the importance of this imprinting in explaining inter-individual and lifetime immune variation.
Collapse
|
16
|
Korchagina AA, Koroleva E, Tumanov AV. Innate Lymphoid Cell Plasticity in Mucosal Infections. Microorganisms 2023; 11:461. [PMID: 36838426 PMCID: PMC9967737 DOI: 10.3390/microorganisms11020461] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023] Open
Abstract
Mucosal tissue homeostasis is a dynamic process that involves multiple mechanisms including regulation of innate lymphoid cells (ILCs). ILCs are mostly tissue-resident cells which are critical for tissue homeostasis and immune response against pathogens. ILCs can sense environmental changes and rapidly respond by producing effector cytokines to limit pathogen spread and initiate tissue recovery. However, dysregulation of ILCs can also lead to immunopathology. Accumulating evidence suggests that ILCs are dynamic population that can change their phenotype and functions under rapidly changing tissue microenvironment. However, the significance of ILC plasticity in response to pathogens remains poorly understood. Therefore, in this review, we discuss recent advances in understanding the mechanisms regulating ILC plasticity in response to intestinal, respiratory and genital tract pathogens. Key transcription factors and lineage-guiding cytokines regulate this plasticity. Additionally, we discuss the emerging data on the role of tissue microenvironment, gut microbiota, and hypoxia in ILC plasticity in response to mucosal pathogens. The identification of new pathways and molecular mechanisms that control functions and plasticity of ILCs could uncover more specific and effective therapeutic targets for infectious and autoimmune diseases where ILCs become dysregulated.
Collapse
Affiliation(s)
| | | | - Alexei V. Tumanov
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr., San Antonio, TX 78229, USA
| |
Collapse
|
17
|
Ataide MA, Manin GZ, Oliveira SS, Guerra RO, Zamboni DS. Inflammasome activation and CCR2-mediated monocyte-derived dendritic cell recruitment restrict Legionella pneumophila infection. Eur J Immunol 2023; 53:e2249985. [PMID: 36427489 DOI: 10.1002/eji.202249985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 09/22/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
Flagellin-induced NAIP/NLRC4 inflammasome activation and pyroptosis are critical events restricting Legionella pneumophila infection. However, the cellular and molecular dynamics of the in vivo responses against this bacterium are still unclear. We have found temporal coordination of two independent innate immunity pathways in controlling Legionella infection, the inflammasome activation and the CCR2-mediated Mo-DC recruitment. Inflammasome activation was an important player at the early stage of infection by lowering the numbers of bacteria for an efficient bacterial clearance conferred by the Mo-DC at the late stage of the infection. Mo-DC emergence highly depended on CCR2-signaling and dispensed inflammasome activation and pyroptosis. Also, Mo-DC compartment did not rely on the inflammasome machinery to deliver proper immune responses and was the most abundant cytokine-producing among the monocyte-derived cells in the infected lung. Importantly, when the CCR2- and NLRC4-dependent axes of response were simultaneously ablated, we observed an aggravated bacterial burden in the lung of infected mice. Taken together, we showed that inflammasome activation and CCR2-mediated immune response interplay in distinct pathways to restrict pulmonary bacterial infection. These findings extend our understanding of the in vivo integration and cooperation of different innate immunity arms in controlling infectious agents.
Collapse
Affiliation(s)
- Marco A Ataide
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Graziele Z Manin
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Samuel S Oliveira
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Rhanoica O Guerra
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Dario S Zamboni
- Department of Cell Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| |
Collapse
|
18
|
Patterson R, Rogiewicz A, Kiarie EG, Slominski BA. Yeast derivatives as a source of bioactive components in animal nutrition: A brief review. Front Vet Sci 2023; 9:1067383. [PMID: 36686164 PMCID: PMC9853299 DOI: 10.3389/fvets.2022.1067383] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/28/2022] [Indexed: 01/09/2023] Open
Abstract
With a long history of inclusion within livestock feeding programs, yeast and their respective derivatives are well-understood from a nutritional perspective. Originally used as sources of highly digestible protein in young animal rations in order to offset the use of conventional protein sources such as soybean and fish meal, application strategies have expanded in recent years into non-nutritional uses for all animal categories. For the case of yeast derivatives, product streams coming from the downstream processing of nutritional yeast, the expansion in use cases across species groups has been driven by a greater understanding of the composition of each derivative along with deeper knowledge of mechanistic action of key functional components. From improving feed efficiency, to serving as alternatives to antibiotic growth promoters and supporting intestinal health and immunity while mitigating pathogen shedding, new use cases are driven by a recognition that yeast derivatives contain specific bioactive compounds that possess functional properties. This review will attempt to highlight key bioactive categories within industrially applicable yeast derivatives and provide context regarding identification and characterization and mechanisms of action related to efficacy within a range of experimental models.
Collapse
Affiliation(s)
- Rob Patterson
- CBS BioPlatforms Inc., Calgary, AB, Canada,*Correspondence: Rob Patterson
| | - Anna Rogiewicz
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - Elijah G. Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | | |
Collapse
|
19
|
Nian W, Huang Z, Fu C. Immune cells drive new immunomodulatory therapies for myocardial infarction: From basic to clinical translation. Front Immunol 2023; 14:1097295. [PMID: 36761726 PMCID: PMC9903069 DOI: 10.3389/fimmu.2023.1097295] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 01/10/2023] [Indexed: 01/26/2023] Open
Abstract
The high incidence of heart failure secondary to myocardial infarction (MI) has been difficult to effectively address. MI causes strong aseptic inflammation, and infiltration of different immune cells and changes in the local inflammatory microenvironment play a key regulatory role in ventricular remodeling. Therefore, the possibility of improving the prognosis of MI through targeted immunity has been of interest and importance in MI. However, previously developed immune-targeted therapies have not achieved significant success in clinical trials. Here, we propose that the search for therapeutic targets from different immune cells may be more precise and lead to better clinical translation. Specifically, this review summarizes the role and potential therapeutic targets of various immune cells in ventricular remodeling after MI, especially monocytes/macrophages and neutrophils, as a way to demonstrate the importance and potential of immunomodulatory therapies for MI. In addition, we analyze the reasons for the failure of previous immunomodulatory therapies and the issues that need to be addressed, as well as the prospects and targeting strategies of using immune cells to drive novel immunomodulatory therapies, hoping to advance the development of immunomodulatory therapies by providing evidence and new ideas.
Collapse
Affiliation(s)
- Wenjian Nian
- Department of Clinical Medicine, Wannan Medical College, Wuhu, China
| | - Zijian Huang
- Department of Cardiology, Yi Ji Shan Hospital affiliated to Wannan Medical College, Wuhu, China.,Anesthesia Laboratory and Training Center, Wannan Medical College, Wuhu, China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| | - Cong Fu
- Department of Cardiology, Yi Ji Shan Hospital affiliated to Wannan Medical College, Wuhu, China.,Anesthesia Laboratory and Training Center, Wannan Medical College, Wuhu, China.,Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, China
| |
Collapse
|
20
|
ILCs-Crucial Players in Enteric Infectious Diseases. Int J Mol Sci 2022; 23:ijms232214200. [PMID: 36430676 PMCID: PMC9695539 DOI: 10.3390/ijms232214200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022] Open
Abstract
Research of the last decade has remarkably increased our understanding of innate lymphoid cells (ILCs). ILCs, in analogy to T helper (Th) cells and their cytokine and transcription factor profile, are categorized into three distinct populations: ILC1s express the transcription factor T-bet and secrete IFNγ, ILC2s depend on the expression of GATA-3 and release IL-5 and IL-13, and ILC3s express RORγt and secrete IL-17 and IL-22. Noteworthy, ILCs maintain a level of plasticity, depending on exposed cytokines and environmental stimuli. Furthermore, ILCs are tissue resident cells primarily localized at common entry points for pathogens such as the gut-associated lymphoid tissue (GALT). They have the unique capacity to initiate rapid responses against pathogens, provoked by changes of the cytokine profile of the respective tissue. Moreover, they regulate tissue inflammation and homeostasis. In case of intracellular pathogens entering the mucosal tissue, ILC1s respond by secreting cytokines (e.g., IFNγ) to limit the pathogen spread. Upon infection with helminths, intestinal epithelial cells produce alarmins (e.g., IL-25) and activate ILC2s to secrete IL-13, which induces differentiation of intestinal stem cells into tuft and goblet cells, important for parasite expulsion. Additionally, during bacterial infection ILC3-derived IL-22 is required for bacterial clearance by regulating antimicrobial gene expression in epithelial cells. Thus, ILCs can limit infectious diseases via secretion of inflammatory mediators and interaction with other cell types. In this review, we will address the role of ILCs during enteric infectious diseases.
Collapse
|
21
|
Lee H, Joo JY, Sohn DH, Kang J, Yu Y, Park HR, Kim YH. Single-cell RNA sequencing reveals rebalancing of immunological response in patients with periodontitis after non-surgical periodontal therapy. J Transl Med 2022; 20:504. [PMID: 36329504 PMCID: PMC9635198 DOI: 10.1186/s12967-022-03702-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/05/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
Background Periodontitis is a major inflammatory disease of the oral mucosa that is not limited to the oral cavity but also has systemic consequences. Although the importance of chronic periodontitis has been emphasized, the systemic immune response induced by periodontitis and its therapeutic effects remain elusive. Here, we report the transcriptomes of peripheral blood mononuclear cells (PBMCs) from patients with periodontitis. Methods Using single-cell RNA sequencing, we profiled PBMCs from healthy controls and paired pre- and post-treatment patients with periodontitis. We extracted differentially expressed genes and biological pathways for each cell type and calculated activity scores reflecting cellular characteristics. Intercellular crosstalk was classified into therapy-responsive and -nonresponsive pathways. Results We analyzed pan-cellular differentially expressed genes caused by periodontitis and found that most cell types showed a significant increase in CRIP1, which was further supported by the increased levels of plasma CRIP1 observed in patients with periodontitis. In addition, activated cell type-specific ligand-receptor interactions, including the BTLA, IFN-γ, and RESISTIN pathways, were prominent in patients with periodontitis. Both the BTLA and IFN-γ pathways returned to similar levels in healthy controls after periodontal therapy, whereas the RESISTIN pathway was still activated even after therapy. Conclusion These data collectively provide insights into the transcriptome changes and molecular interactions that are responsive to periodontal treatment. We identified periodontitis-specific systemic inflammatory indicators and suggest unresolved signals of non-surgical therapy as future therapeutic targets. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-022-03702-2.
Collapse
Affiliation(s)
- Hansong Lee
- grid.262229.f0000 0001 0719 8572Convergence Medical Sciences, Pusan National University, 50612 Yangsan, Republic of Korea
| | - Ji-Young Joo
- grid.262229.f0000 0001 0719 8572Department of Periodontology, School of Dentistry, Pusan National University, 50612 Yangsan, Republic of Korea
| | - Dong Hyun Sohn
- grid.262229.f0000 0001 0719 8572Department of Microbiology and Immunology, School of Medicine, Pusan National University, 50612 Yangsan, Republic of Korea
| | - Junho Kang
- grid.262229.f0000 0001 0719 8572Medical Research Institute, Pusan National University, 50612 Yangsan, Republic of Korea
| | - Yeuni Yu
- grid.262229.f0000 0001 0719 8572Medical Research Institute, Pusan National University, 50612 Yangsan, Republic of Korea
| | - Hae Ryoun Park
- grid.262229.f0000 0001 0719 8572Department of Oral Pathology, School of Dentistry, Pusan National University, 49 Busandaehak- ro, 50612 Yangsan, Republic of Korea
| | - Yun Hak Kim
- grid.262229.f0000 0001 0719 8572Convergence Medical Sciences, Pusan National University, 50612 Yangsan, Republic of Korea ,grid.262229.f0000 0001 0719 8572Department of Anatomy, School of Medicine, Pusan National University, 49 Busandaehak-ro, 50612 Yangsan, Republic of Korea
| |
Collapse
|
22
|
Shao T, Leung PSC, Zhang W, Tsuneyama K, Ridgway WM, Young HA, Shuai Z, Ansari AA, Gershwin ME. Treatment with a JAK1/2 inhibitor ameliorates murine autoimmune cholangitis induced by IFN overexpression. Cell Mol Immunol 2022; 19:1130-1140. [PMID: 36042351 PMCID: PMC9508183 DOI: 10.1038/s41423-022-00904-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/11/2022] [Indexed: 11/09/2022] Open
Abstract
The interferon (IFN) signaling pathways are major immunological checkpoints with clinical significance in the pathogenesis of autoimmunity. We have generated a unique murine model named ARE-Del, with chronic overexpression of IFNγ, by altering IFNγ metabolism. Importantly, these mice develop an immunologic and clinical profile similar to patients with primary biliary cholangitis, including high titers of autoantibodies and portal inflammation. We hypothesized that the downregulation of IFN signaling pathways with a JAK1/2 inhibitor would inhibit the development and progression of cholangitis. To study this hypothesis, ARE-Del+/- mice were treated with the JAK1/2 inhibitor ruxolitinib and serially studied. JAK inhibition resulted in a significant reduction in portal inflammation and bile duct damage, associated with a significant reduction in splenic and hepatic CD4+ T cells and CD8+ T cells. Functionally, ruxolitinib inhibited the secretion of the proinflammatory cytokines IFNγ and TNF from splenic CD4+ T cells. Additionally, ruxolitinib treatment also decreased the frequencies of germinal center B (GC B) cells and T follicular helper (Tfh) cells and led to lower serological AMA levels. Of note, liver and peritoneal macrophages were sharply decreased and polarized from M1 to M2 with a higher level of IRF4 expression after ruxolitinib treatment. Mechanistically, ruxolitinib inhibited the secretion of IL-6, TNF and MCP1 and the expression of STAT1 but promoted the expression of STAT6 in macrophages in vitro, indicating that M1 macrophage polarization to M2 occurred through activation of the STAT6-IRF4 pathway. Our data highlight the significance, both immunologically and clinically, of the JAK/STAT signaling pathway in autoimmune cholangitis.
Collapse
Affiliation(s)
- Tihong Shao
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Division of Rheumatology, Allergy, and Clinical Immunology, School of Medicine, University of California, Davis, CA, USA
| | - Patrick S C Leung
- Division of Rheumatology, Allergy, and Clinical Immunology, School of Medicine, University of California, Davis, CA, USA
| | - Weici Zhang
- Division of Rheumatology, Allergy, and Clinical Immunology, School of Medicine, University of California, Davis, CA, USA
| | - Koichi Tsuneyama
- Department of Pathology and Laboratory Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - William M Ridgway
- Division of Rheumatology, Allergy, and Clinical Immunology, School of Medicine, University of California, Davis, CA, USA
| | - Howard A Young
- Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD, USA
| | - Zongwen Shuai
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Aftab A Ansari
- Division of Rheumatology, Allergy, and Clinical Immunology, School of Medicine, University of California, Davis, CA, USA
| | - M Eric Gershwin
- Division of Rheumatology, Allergy, and Clinical Immunology, School of Medicine, University of California, Davis, CA, USA.
| |
Collapse
|
23
|
Abdi K, Laky K, Abshari M, Hill EM, Lantz L, Singh NJ, Long EO. Dendritic cells Trigger IFN-γ secretion by NK cells independent of IL-12 and IL-18. Eur J Immunol 2022; 52:1431-1440. [PMID: 35816444 PMCID: PMC10608798 DOI: 10.1002/eji.202149733] [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: 11/16/2021] [Revised: 06/09/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022]
Abstract
It is commonly believed that IL-12 produced by DCs in response to pathogens is the first signal that stimulates the production of IFN-γ by NK cells. However, IL-12 production by DCs in response to bacterial LPS depends on either engagement of CD40 by CD40L on activated T cells or IFN-γ from NK cells. This suggests that during the primary immune response, NK cells produce IFN-γ before IL-12 production by DCs. Here, using single-cell measurements, cell sorting and mouse lines deficient in IL-12, IL-23, type I IFN receptor and the IL-18 receptor, we show that a subset of BM-derived DCs characterized by low expression of MHC class II (MHCIIlow ) stimulates IFN-γ production by NK cells. The expression of Toll-like Receptor (TLR) 4 on DCs but not NK cells was required for such NK-derived IFN-γ. In addition, soluble factor(s) produced by LPS-activated MHCIIlow DCs were sufficient to induce IFN-γ production by NK cells independent of IL-12, IL-23, and IL-18. This response was enhanced in the presence of a low dose of IL-2. These results delineate a previously unknown pathway of DC-mediated IFN-γ production by NK cells, which is independent of commonly known cytokines.
Collapse
Affiliation(s)
- Kaveh Abdi
- Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institute of Health, Bethesda, MD, USA
| | - Karen Laky
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health, Bethesda, MD, USA
| | - Mehrnoosh Abshari
- National Institute of Dental and Craniofacial Research, National Institute of Health, Bethesda, MD, USA
| | - Elizabeth M. Hill
- Department of Microbiology & Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Larry Lantz
- Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institute of Health, Bethesda, MD, USA
| | - Nevil J. Singh
- Department of Microbiology & Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Eric O. Long
- Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institute of Health, Bethesda, MD, USA
| |
Collapse
|
24
|
Brigleb PH, Kouame E, Fiske KL, Taylor GM, Urbanek K, Medina Sanchez L, Hinterleitner R, Jabri B, Dermody TS. NK cells contribute to reovirus-induced IFN responses and loss of tolerance to dietary antigen. JCI Insight 2022; 7:159823. [PMID: 35993365 PMCID: PMC9462493 DOI: 10.1172/jci.insight.159823] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/14/2022] [Indexed: 11/17/2022] Open
Abstract
Celiac disease is an immune-mediated intestinal disorder that results from loss of oral tolerance (LOT) to dietary gluten. Reovirus elicits inflammatory Th1 cells and suppresses Treg responses to dietary antigen in a strain-dependent manner. Strain type 1 Lang (T1L) breaks oral tolerance, while strain type 3 Dearing reassortant virus (T3D-RV) does not. We discovered that intestinal infection by T1L in mice leads to the recruitment and activation of NK cells in mesenteric lymph nodes (MLNs) in a type I IFN-dependent manner. Once activated following infection, NK cells produce type II IFN and contribute to IFN-stimulated gene expression in the MLNs, which in turn induces inflammatory DC and T cell responses. Immune depletion of NK cells impairs T1L-induced LOT to newly introduced food antigen. These studies indicate that NK cells modulate the response to dietary antigen in the presence of a viral infection.
Collapse
Affiliation(s)
- Pamela H. Brigleb
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Elaine Kouame
- Committee on Immunology, University of Chicago, Chicago, Illinois, USA
| | - Kay L. Fiske
- Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Pediatrics and
| | - Gwen M. Taylor
- Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Pediatrics and
| | - Kelly Urbanek
- Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Pediatrics and
| | - Luzmariel Medina Sanchez
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Reinhard Hinterleitner
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Bana Jabri
- Committee on Immunology, University of Chicago, Chicago, Illinois, USA.,Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Terence S. Dermody
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,Institute of Infection, Inflammation, and Immunity, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Pediatrics and
| |
Collapse
|
25
|
Denis J, Gommenginger C, Strechie T, Filisetti D, Beal L, Pfaff AW, Villard O. Dynamic immune profile in French toxoplasmosis patients. J Infect Dis 2022; 226:1834-1841. [PMID: 35978487 DOI: 10.1093/infdis/jiac305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Toxoplasma gondii infection is usually benign in Europe due to the strong predominance of type II strains. Few studies have been conducted to examine the immunological course of infection in humans and have yielded conflicting results, maybe influenced by heterogeneous parasite strains. METHODS We measured 23 immune mediators in 39, 40, and 29 sera of French non-infected, acutely infected, and chronically infected immunocompetent pregnant women, respectively. RESULTS Four different cytokine patterns were identified regarding their dynamics through infection phases. For eleven of the cytokines, IFN-β, IFN-γ, IL-4, IL5, IL-6, IL-10, IL-12, IL-15, CXCL9, CCL2 and CSF2, the serum levels were significantly elevated during acute infection. The inflammatory mediators IL-1β, IL-17A, IL-18, TNF-α and CSF3 remained unchanged during acute infection, while they were significantly lower in chronically infected compared to non-infected patients. As for the anti-inflammatory cytokines TGF-β and CCL5, their levels remained significantly elevated during chronic infection. We also observed a significant negative correlation of several cytokine concentrations with IgG levels, indicating a rapid decline of serum concentrations during the acute phase. DISCUSSION These results indicate an anti-inflammatory pattern in chronically infected patients in a type II dominated setting and demonstrate the highly dynamic immune situation during acute infection.
Collapse
Affiliation(s)
- Julie Denis
- Institut de Parasitologie et de Pathologie Tropicale, UR7292 Dynamique des interactions hôte pathogène, Fédération de Médecine Translationnelle, Université de Strasbourg, Strasbourg, France.,Laboratoire de Parasitologie et Mycologie Médicale, Les Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Chloé Gommenginger
- Laboratoire de Parasitologie et Mycologie Médicale, Les Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Centre National de Référence Toxoplasmose-Pôle sérologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Teodora Strechie
- Institut de Parasitologie et de Pathologie Tropicale, UR7292 Dynamique des interactions hôte pathogène, Fédération de Médecine Translationnelle, Université de Strasbourg, Strasbourg, France.,Centre National de Référence Toxoplasmose-Pôle sérologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Denis Filisetti
- Institut de Parasitologie et de Pathologie Tropicale, UR7292 Dynamique des interactions hôte pathogène, Fédération de Médecine Translationnelle, Université de Strasbourg, Strasbourg, France.,Laboratoire de Parasitologie et Mycologie Médicale, Les Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Centre National de Référence Toxoplasmose-Pôle sérologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Laetitia Beal
- Laboratoire de Parasitologie et Mycologie Médicale, Les Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Centre National de Référence Toxoplasmose-Pôle sérologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Alexander W Pfaff
- Institut de Parasitologie et de Pathologie Tropicale, UR7292 Dynamique des interactions hôte pathogène, Fédération de Médecine Translationnelle, Université de Strasbourg, Strasbourg, France.,Laboratoire de Parasitologie et Mycologie Médicale, Les Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Odile Villard
- Institut de Parasitologie et de Pathologie Tropicale, UR7292 Dynamique des interactions hôte pathogène, Fédération de Médecine Translationnelle, Université de Strasbourg, Strasbourg, France.,Laboratoire de Parasitologie et Mycologie Médicale, Les Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Centre National de Référence Toxoplasmose-Pôle sérologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| |
Collapse
|
26
|
Connors J, Taramangalam B, Cusimano G, Bell MR, Matt SM, Runner K, Gaskill PJ, DeFilippis V, Nikolich-Žugich J, Kutzler MA, Haddad EK. Aging alters antiviral signaling pathways resulting in functional impairment in innate immunity in response to pattern recognition receptor agonists. GeroScience 2022; 44:2555-2572. [PMID: 35849213 PMCID: PMC9289086 DOI: 10.1007/s11357-022-00612-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 06/16/2022] [Indexed: 01/06/2023] Open
Abstract
The progressive impairment of immunity to pathogens and vaccines with aging is a significant public health problem as the world population shifts to an increased percentage of older adults (> 65). We have previously demonstrated that cells obtained from older volunteers have delayed and defective induction of type I interferons and T cell and B cell helper cytokines in response to TLR ligands when compared to those from adult subjects. However, the underlying intracellular mechanisms are not well described. Herein, we studied two critical pathways important in the production of type I interferon (IFN), the interferon response factor 7 (pIRF7), and TANK-binding kinase (pTBK-1). We show a decrease in pIRF7 and pTBK-1 in cross-priming dendritic cells (cDC1s), CD4+ T cell priming DCs (cDC2s), and CD14dimCD16+ vascular patrolling monocytes from older adults (n = 11) following stimulation with pathway-specific agonists in comparison with young individuals (n = 11). The decrease in these key antiviral pathway proteins correlates with decreased phagocytosis, suggesting impaired function in Overall, our findings describe molecular mechanisms which explain the innate functional impairment in older adults and thus could inform us of novel approaches to restore these defects.
Collapse
Affiliation(s)
- Jennifer Connors
- grid.166341.70000 0001 2181 3113Department of Medicine, Division of Infectious Diseases & HIV Medicine, Drexel University College of Medicine, Philadelphia, PA USA ,grid.166341.70000 0001 2181 3113Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA USA
| | - Bhavani Taramangalam
- grid.166341.70000 0001 2181 3113Department of Medicine, Division of Infectious Diseases & HIV Medicine, Drexel University College of Medicine, Philadelphia, PA USA ,grid.166341.70000 0001 2181 3113Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA USA
| | - Gina Cusimano
- grid.166341.70000 0001 2181 3113Department of Medicine, Division of Infectious Diseases & HIV Medicine, Drexel University College of Medicine, Philadelphia, PA USA ,grid.166341.70000 0001 2181 3113Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA USA
| | - Matthew R. Bell
- grid.166341.70000 0001 2181 3113Department of Medicine, Division of Infectious Diseases & HIV Medicine, Drexel University College of Medicine, Philadelphia, PA USA ,grid.166341.70000 0001 2181 3113Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA USA
| | - Stephanie M. Matt
- grid.166341.70000 0001 2181 3113Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA USA
| | - Kaitlyn Runner
- grid.166341.70000 0001 2181 3113Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA USA
| | - Peter J. Gaskill
- grid.166341.70000 0001 2181 3113Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA USA
| | - Victor DeFilippis
- grid.5288.70000 0000 9758 5690Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, OR USA
| | - Janko Nikolich-Žugich
- grid.134563.60000 0001 2168 186XDepartment of Immunobiology, University of Arizona College of Medicine-Tucson, Tucson, AZ USA ,grid.134563.60000 0001 2168 186XArizona Center On Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ USA
| | - Michele A. Kutzler
- grid.166341.70000 0001 2181 3113Department of Medicine, Division of Infectious Diseases & HIV Medicine, Drexel University College of Medicine, Philadelphia, PA USA ,grid.166341.70000 0001 2181 3113Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA USA
| | - Elias K. Haddad
- grid.166341.70000 0001 2181 3113Department of Medicine, Division of Infectious Diseases & HIV Medicine, Drexel University College of Medicine, Philadelphia, PA USA ,grid.166341.70000 0001 2181 3113Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA USA
| |
Collapse
|
27
|
Chen M, Liu Y, Yang Y, Qiu Y, Wang Z, Li X, Zhang W. Emerging roles of activating transcription factor (ATF) family members in tumourigenesis and immunity: Implications in cancer immunotherapy. Genes Dis 2022; 9:981-999. [PMID: 35685455 PMCID: PMC9170601 DOI: 10.1016/j.gendis.2021.04.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 12/12/2022] Open
Abstract
Activating transcription factors, ATFs, are a group of bZIP transcription factors that act as homodimers or heterodimers with a range of other bZIP factors. In general, ATFs respond to extracellular signals, indicating their important roles in maintaining homeostasis. The ATF family includes ATF1, ATF2, ATF3, ATF4, ATF5, ATF6, and ATF7. Consistent with the diversity of cellular processes reported to be regulated by ATFs, the functions of ATFs are also diverse. ATFs play an important role in cell proliferation, apoptosis, differentiation and inflammation-related pathological processes. The expression and phosphorylation status of ATFs are also related to neurodegenerative diseases and polycystic kidney disease. Various miRNAs target ATFs to regulate cancer proliferation, apoptosis, autophagy, sensitivity and resistance to radiotherapy and chemotherapy. Moreover, ATFs are necessary to maintain cell redox homeostasis. Therefore, deepening our understanding of the regulation and function of ATFs will provide insights into the basic regulatory mechanisms that influence how cells integrate extracellular and intracellular signals into genomic responses through transcription factors. Under pathological conditions, especially in cancer biology and response to treatment, the characterization of ATF dysfunction is important for understanding how to therapeutically utilize ATF2 or other pathways controlled by transcription factors. In this review, we will demonstrate how ATF1, ATF2, ATF3, ATF4, ATF5, ATF6, and ATF7 function in promoting or suppressing cancer development and identify their roles in tumour immunotherapy.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Wenling Zhang
- Corresponding author. Department of Medical Laboratory Science, the Third Xiangya Hospital, Central South University, Tongzipo Road 172, Yuelu District, Changsha, Hunan 410013, PR China.
| |
Collapse
|
28
|
Hakimi MA. Epigenetic Reprogramming in Host-Parasite Coevolution: The Toxoplasma Paradigm. Annu Rev Microbiol 2022; 76:135-155. [PMID: 35587934 DOI: 10.1146/annurev-micro-041320-011520] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Like many intracellular pathogens, the protozoan parasite Toxoplasma gondii has evolved sophisticated mechanisms to promote its transmission and persistence in a variety of hosts by injecting effector proteins that manipulate many processes in the cells it invades. Specifically, the parasite diverts host epigenetic modulators and modifiers from their native functions to rewire host gene expression to counteract the innate immune response and to limit its strength. The arms race between the parasite and its hosts has led to accelerated adaptive evolution of effector proteins and the unconventional secretion routes they use. This review provides an up-to-date overview of how T. gondii effectors, through the evolution of intrinsically disordered domains, the formation of supramolecular complexes, and the use of molecular mimicry, target host transcription factors that act as coordinating nodes, as well as chromatin-modifying enzymes, to control the fate of infected cells and ultimately the outcome of infection. Expected final online publication date for the Annual Review of Microbiology, Volume 76 is September 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
Collapse
Affiliation(s)
- Mohamed-Ali Hakimi
- Host-Pathogen Interactions and Immunity to Infection, Institute for Advanced Biosciences (IAB), INSERM U1209, CNRS UMR 5309, Grenoble Alpes University, Grenoble, France;
| |
Collapse
|
29
|
Huang JY, Lyons-Cohen MR, Gerner MY. Information flow in the spatiotemporal organization of immune responses. Immunol Rev 2022; 306:93-107. [PMID: 34845729 PMCID: PMC8837692 DOI: 10.1111/imr.13046] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 12/15/2022]
Abstract
Immune responses must be rapid, tightly orchestrated, and tailored to the encountered stimulus. Lymphatic vessels facilitate this process by continuously collecting immunological information (ie, antigens, immune cells, and soluble mediators) about the current state of peripheral tissues, and transporting these via the lymph across the lymphatic system. Lymph nodes (LNs), which are critical meeting points for innate and adaptive immune cells, are strategically located along the lymphatic network to intercept this information. Within LNs, immune cells are spatially organized, allowing them to efficiently respond to information delivered by the lymph, and to either promote immune homeostasis or mount protective immune responses. These responses involve the activation and functional cooperation of multiple distinct cell types and are tailored to the specific inflammatory conditions. The natural patterns of lymph flow can also generate spatial gradients of antigens and agonists within draining LNs, which can in turn further regulate innate cell function and localization, as well as the downstream generation of adaptive immunity. In this review, we explore how information transmitted by the lymph shapes the spatiotemporal organization of innate and adaptive immune responses in LNs, with particular focus on steady state and Type-I vs. Type-II inflammation.
Collapse
Affiliation(s)
| | | | - Michael Y Gerner
- Corresponding author: Michael Gerner, , Address: 750 Republican Street Seattle, WA 98109, Phone: 206-685-3610
| |
Collapse
|
30
|
Agarwal Y, Milling LE, Chang JY, Santollani L, Sheen A, Lutz EA, Tabet A, Stinson J, Ni K, Rodrigues KA, Moyer TJ, Melo MB, Irvine DJ, Wittrup KD. Intratumourally injected alum-tethered cytokines elicit potent and safer local and systemic anticancer immunity. Nat Biomed Eng 2022; 6:129-143. [PMID: 35013574 PMCID: PMC9681025 DOI: 10.1038/s41551-021-00831-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 11/05/2021] [Indexed: 02/07/2023]
Abstract
Anti-tumour inflammatory cytokines are highly toxic when administered systemically. Here, in multiple syngeneic mouse models, we show that the intratumoural injection of recombinantly expressed cytokines bound tightly to the common vaccine adjuvant aluminium hydroxide (alum) (via ligand exchange between hydroxyls on the surface of alum and phosphoserine residues tagged to the cytokine by an alum-binding peptide) leads to weeks-long retention of the cytokines in the tumours, with minimal side effects. Specifically, a single dose of alum-tethered interleukin-12 induced substantial interferon-γ-mediated T-cell and natural-killer-cell activities in murine melanoma tumours, increased tumour antigen accumulation in draining lymph nodes and elicited robust tumour-specific T-cell priming. Moreover, intratumoural injection of alum-anchored cytokines enhanced responses to checkpoint blockade, promoting cures in distinct poorly immunogenic syngeneic tumour models and eliciting control over metastases and distant untreated lesions. Intratumoural treatment with alum-anchored cytokines represents a safer and tumour-agnostic strategy to improving local and systemic anticancer immunity.
Collapse
Affiliation(s)
- Yash Agarwal
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139
| | - Lauren E. Milling
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139
| | - Jason Y.H. Chang
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, USA 02139
| | - Luciano Santollani
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139
| | - Allison Sheen
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139
| | - Emi A. Lutz
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139
| | - Anthony Tabet
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139
| | - Jordan Stinson
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139
| | - Kaiyuan Ni
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139
| | - Kristen A. Rodrigues
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, USA 02139,Harvard-MIT Health Sciences and Technology Program, Institute of Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Consortium for HIV/AIDS Vaccine Development, The Scripps Research Institute, La Jolla, California, USA 92037
| | - Tyson J. Moyer
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, USA 02139
| | - Mariane B. Melo
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, USA 02139
| | - Darrell J. Irvine
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard University, USA 02139,Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Howard Hughes Medical Institute, Chevy Chase, Maryland, USA 20815,Consortium for HIV/AIDS Vaccine Development, The Scripps Research Institute, La Jolla, California, USA 92037,Correspondence and requests for materials should be addressed to K.D.W. or D.J.I. ;
| | - K. Dane Wittrup
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 02139,Correspondence and requests for materials should be addressed to K.D.W. or D.J.I. ;
| |
Collapse
|
31
|
Narayanaperumal J, D'souza A, Miriyala A, Sharma B, Gopal G. A randomized double blinded placebo controlled clinical trial for the evaluation of green coffee extract on immune health in healthy adults. J Tradit Complement Med 2022; 12:455-465. [PMID: 36081816 PMCID: PMC9446042 DOI: 10.1016/j.jtcme.2022.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 01/08/2023] Open
Abstract
Background The immune system functions to protect the host from a broad array of infectious diseases. Here, we evaluated the in vitro immunomodulatory effects of green coffee extract (GCE), and conducted a double-blinded, randomized and placebo-controlled trial among apparently healthy individuals. Methods We determined the levels and functions of inflammatory and immune markers viz., phospho-NF-κB p65 ser536, chemotaxis, phagocytosis, TH1/TH2 cytokines and IgG production. We also evaluated several immunological markers such as total leukocyte counts, differential leukocyte counts, NK cell activity, CD4/CD8 ratio, serum immunoglobulin, C-reactive protein (CRP) and pro-inflammatory cytokines (IL-6 and TNF-α). Results and conclusion GCE significantly inhibited LPS-induced NF-κB p65 ser536 phosphorylation, MCP-1-induced chemotaxis and significantly enhanced phagocytosis and IgG production. In addition, GCE modulated PMA/PHA-induced TH1/TH2 cytokine production. Clinical investigations suggested that the expression of CD56 and CD16 was markedly augmented on NK cells following GCE treatment. GCE significantly enhanced IgA production before and after influenza vaccination. Similarly, IL-6, TNF-α and CRP levels were significantly inhibited by GCE. Together, GCE confers several salubrious immunomodulatory effects at different levels attributing to optimal functioning of immune responses in the host. Taxonomy Cell biology, Clinical study, Clinical Trial. GCE showed an anti-inflammatory effect by inhibiting the NF-κB phosphorylation. GCE enhances innate immune response by activating NK cells and phagocytosis. GCE is an immunomodulator.
Collapse
Affiliation(s)
- Jeyaparthasarathy Narayanaperumal
- ITC Limited - Corporate Division, Life Sciences & Technology Centre, #3, 1st Main, Peenya Industrial Area, Phase I, Bangalore, 560 058, India
| | - Avin D'souza
- ITC Limited - Corporate Division, Life Sciences & Technology Centre, #3, 1st Main, Peenya Industrial Area, Phase I, Bangalore, 560 058, India
| | - Amarnath Miriyala
- ITC Limited - Corporate Division, Life Sciences & Technology Centre, #3, 1st Main, Peenya Industrial Area, Phase I, Bangalore, 560 058, India
| | - Bhavna Sharma
- ITC Limited - Foods Division, ITC Green Centre, No. 18 Banaswadi, Main Road, Maruthiseva Nagar, Bangalore, 560 005, India
| | - Ganesh Gopal
- ITC Limited - Corporate Division, Life Sciences & Technology Centre, #3, 1st Main, Peenya Industrial Area, Phase I, Bangalore, 560 058, India
- Corresponding author.
| |
Collapse
|
32
|
Yang H, Hu B. Immunological Perspective: Helicobacter pylori Infection and Gastritis. Mediators Inflamm 2022; 2022:2944156. [PMID: 35300405 PMCID: PMC8923794 DOI: 10.1155/2022/2944156] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
Helicobacter pylori is a spiral-shaped gram-negative bacterium. Its infection is mainly transmitted via oral-oral and fecal-oral routes usually during early childhood. It can achieve persistent colonization by manipulating the host immune responses, which also causes mucosal damage and inflammation. H. pylori gastritis is an infectious disease and results in chronic gastritis of different severity in near all patients with infection. It may develop from acute/chronic inflammation, chronic atrophic gastritis, intestinal metaplasia, dysplasia, and intraepithelial neoplasia, eventually to gastric cancer. This review attempts to cover recent studies which provide important insights into how H. pylori causes chronic inflammation and what the characteristic is, which will immunologically explain H. pylori gastritis.
Collapse
Affiliation(s)
- Hang Yang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bing Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| |
Collapse
|
33
|
Korchagina AA, Koroleva E, Tumanov AV. Innate Lymphoid Cells in Response to Intracellular Pathogens: Protection Versus Immunopathology. Front Cell Infect Microbiol 2021; 11:775554. [PMID: 34938670 PMCID: PMC8685334 DOI: 10.3389/fcimb.2021.775554] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/03/2021] [Indexed: 12/23/2022] Open
Abstract
Innate lymphoid cells (ILCs) are a heterogeneous group of cytokine-producing lymphocytes which are predominantly located at mucosal barrier surfaces, such as skin, lungs, and gastrointestinal tract. ILCs contribute to tissue homeostasis, regulate microbiota-derived signals, and protect against mucosal pathogens. ILCs are classified into five major groups by their developmental origin and distinct cytokine production. A recently emerged intriguing feature of ILCs is their ability to alter their phenotype and function in response to changing local environmental cues such as pathogen invasion. Once the pathogen crosses host barriers, ILCs quickly activate cytokine production to limit the spread of the pathogen. However, the dysregulated ILC responses can lead to tissue inflammation and damage. Furthermore, the interplay between ILCs and other immune cell types shapes the outcome of the immune response. Recent studies highlighted the important role of ILCs for host defense against intracellular pathogens. Here, we review recent advances in understanding the mechanisms controlling protective and pathogenic ILC responses to intracellular pathogens. This knowledge can help develop new ILC-targeted strategies to control infectious diseases and immunopathology.
Collapse
Affiliation(s)
- Anna A Korchagina
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Ekaterina Koroleva
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Alexei V Tumanov
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| |
Collapse
|
34
|
Pinski AN, Messaoudi I. Therapeutic vaccination strategies against EBOV by rVSV-EBOV-GP: the role of innate immunity. Curr Opin Virol 2021; 51:179-189. [PMID: 34749265 DOI: 10.1016/j.coviro.2021.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/14/2021] [Accepted: 10/19/2021] [Indexed: 12/30/2022]
Abstract
Zaire Ebola virus (EBOV) is a member of the Filoviridae family. Infection with EBOV causes Ebola virus disease (EVD) characterized by excessive inflammation, lymphocyte death, coagulopathy, and multi-organ failure. In 2019, the FDA-approved the first anti-EBOV vaccine, rVSV-EBOV-GP (Ervebo® by Merck). This live-recombinant vaccine confers both prophylactic and therapeutic protection to nonhuman primates and humans. While mechanisms conferring prophylactic protection are well-investigated, those underlying protection conferred shortly before and after exposure to EBOV remain poorly understood. In this review, we review data from in vitro and in vivo studies analyzing early immune responses to rVSV-EBOV-GP and discuss the role of innate immune activation in therapeutic protection.
Collapse
Affiliation(s)
- Amanda N Pinski
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA, USA
| | - Ilhem Messaoudi
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA, USA; Center for Virus Research, University of California, Irvine, Irvine, CA, USA; Institute for Immunology, University of California, Irvine, Irvine, CA, USA; Department of Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, Lexington, KY, USA.
| |
Collapse
|
35
|
Lutz CT, Livas L, Presnell SR, Sexton M, Wang P. Gender Differences in Urothelial Bladder Cancer: Effects of Natural Killer Lymphocyte Immunity. J Clin Med 2021; 10:jcm10215163. [PMID: 34768683 PMCID: PMC8584838 DOI: 10.3390/jcm10215163] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/13/2021] [Accepted: 10/29/2021] [Indexed: 02/07/2023] Open
Abstract
Men are more likely to develop cancer than women. In fact, male predominance is one of the most consistent cancer epidemiology findings. Additionally, men have a poorer prognosis and an increased risk of secondary malignancies compared to women. These differences have been investigated in order to better understand cancer and to better treat both men and women. In this review, we discuss factors that may cause this gender difference, focusing on urothelial bladder cancer (UBC) pathogenesis. We consider physiological factors that may cause higher male cancer rates, including differences in X chromosome gene expression. We discuss how androgens may promote bladder cancer development directly by stimulating bladder urothelium and indirectly by suppressing immunity. We are particularly interested in the role of natural killer (NK) cells in anti-cancer immunity.
Collapse
Affiliation(s)
- Charles T. Lutz
- Department of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY 40536, USA; (L.L.); (S.R.P.); (M.S.)
- Department of Microbiology, Immunology, and Molecular Genetics, University of Kentucky, Lexington, KY 40536, USA
- Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA;
- Correspondence:
| | - Lydia Livas
- Department of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY 40536, USA; (L.L.); (S.R.P.); (M.S.)
| | - Steven R. Presnell
- Department of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY 40536, USA; (L.L.); (S.R.P.); (M.S.)
| | - Morgan Sexton
- Department of Pathology and Laboratory Medicine, University of Kentucky, Lexington, KY 40536, USA; (L.L.); (S.R.P.); (M.S.)
| | - Peng Wang
- Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA;
- Department of Internal Medicine, University of Kentucky, Lexington, KY 40536, USA
| |
Collapse
|
36
|
Lam KC, Araya RE, Huang A, Chen Q, Di Modica M, Rodrigues RR, Lopès A, Johnson SB, Schwarz B, Bohrnsen E, Cogdill AP, Bosio CM, Wargo JA, Lee MP, Goldszmid RS. Microbiota triggers STING-type I IFN-dependent monocyte reprogramming of the tumor microenvironment. Cell 2021; 184:5338-5356.e21. [PMID: 34624222 PMCID: PMC8650838 DOI: 10.1016/j.cell.2021.09.019] [Citation(s) in RCA: 230] [Impact Index Per Article: 76.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 06/27/2021] [Accepted: 09/13/2021] [Indexed: 12/14/2022]
Abstract
The tumor microenvironment (TME) influences cancer progression and therapy response. Therefore, understanding what regulates the TME immune compartment is vital. Here we show that microbiota signals program mononuclear phagocytes in the TME toward immunostimulatory monocytes and dendritic cells (DCs). Single-cell RNA sequencing revealed that absence of microbiota skews the TME toward pro-tumorigenic macrophages. Mechanistically, we show that microbiota-derived stimulator of interferon genes (STING) agonists induce type I interferon (IFN-I) production by intratumoral monocytes to regulate macrophage polarization and natural killer (NK) cell-DC crosstalk. Microbiota modulation with a high-fiber diet triggered the intratumoral IFN-I-NK cell-DC axis and improved the efficacy of immune checkpoint blockade (ICB). We validated our findings in individuals with melanoma treated with ICB and showed that the predicted intratumoral IFN-I and immune compositional differences between responder and non-responder individuals can be transferred by fecal microbiota transplantation. Our study uncovers a mechanistic link between the microbiota and the innate TME that can be harnessed to improve cancer therapies.
Collapse
Affiliation(s)
- Khiem C Lam
- Inflammatory Cell Dynamics Section, Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Romina E Araya
- Inflammatory Cell Dynamics Section, Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - April Huang
- Inflammatory Cell Dynamics Section, Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA; Leidos Biomedical Research, Bethesda, MD 20892, USA
| | - Quanyi Chen
- Inflammatory Cell Dynamics Section, Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA; Kelly Government Solutions, Bethesda, MD 20892, USA
| | - Martina Di Modica
- Inflammatory Cell Dynamics Section, Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA; Molecular Targeting Unit, Department of Research, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy
| | - Richard R Rodrigues
- Leidos Biomedical Research, Bethesda, MD 20892, USA; Microbiome and Genetics Core, Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Amélie Lopès
- Inflammatory Cell Dynamics Section, Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Sarah B Johnson
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Benjamin Schwarz
- Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Eric Bohrnsen
- Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Alexandria P Cogdill
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Catharine M Bosio
- Immunity to Pulmonary Pathogens Section, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, Hamilton, MT 59840, USA
| | - Jennifer A Wargo
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Maxwell P Lee
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA
| | - Romina S Goldszmid
- Inflammatory Cell Dynamics Section, Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
| |
Collapse
|
37
|
Ramos TI, Villacis-Aguirre CA, Santiago Vispo N, Santiago Padilla L, Pedroso Santana S, Parra NC, Alonso JRT. Forms and Methods for Interferon's Encapsulation. Pharmaceutics 2021; 13:1533. [PMID: 34683824 PMCID: PMC8538586 DOI: 10.3390/pharmaceutics13101533] [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: 08/21/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 12/13/2022] Open
Abstract
Interferons (IFNs) are cytokines involved in the immune response that act on innate and adaptive immunity. These proteins are natural cell-signaling glycoproteins expressed in response to viral infections, tumors, and biological inducers and constitute the first line of defense of vertebrates against infectious agents. They have been marketed for more than 30 years with considerable impact on the global therapeutic protein market thanks to their diversity in terms of biological activities. They have been used as single agents or with combination treatment regimens, demonstrating promising clinical results, resulting in 22 different formulations approved by regulatory agencies. The 163 clinical trials with currently active IFNs reinforce their importance as therapeutics for human health. However, their application has presented difficulties due to the molecules' size, sensitivity to degradation, and rapid elimination from the bloodstream. For some years now, work has been underway to obtain new drug delivery systems to provide adequate therapeutic concentrations for these cytokines, decrease their toxicity and prolong their half-life in the circulation. Although different research groups have presented various formulations that encapsulate IFNs, to date, there is no formulation approved for use in humans. The current review exhibits an updated summary of all encapsulation forms presented in the scientific literature for IFN-α, IFN-ß, and IFN-γ, from the year 1996 to the year 2021, considering parameters such as: encapsulating matrix, route of administration, target, advantages, and disadvantages of each formulation.
Collapse
Affiliation(s)
- Thelvia I. Ramos
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Víctor Lamas 1290, Concepción P.O. Box 160-C, Chile; (T.I.R.); (C.A.V.-A.); (S.P.S.); (N.C.P.)
- Grupo de Investigación en Sanidad Animal y Humana (GISAH), Carrera Ingeniería en Biotecnología, Departamento de Ciencias de la Vida y la Agricultura, Universidad de las Fuerzas Armadas—ESPE, Sangolquí 171103, Ecuador
| | - Carlos A. Villacis-Aguirre
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Víctor Lamas 1290, Concepción P.O. Box 160-C, Chile; (T.I.R.); (C.A.V.-A.); (S.P.S.); (N.C.P.)
| | - Nelson Santiago Vispo
- School of Biological Sciences and Engineering, Yachay Tech University, Hda. San José s/n y Proyecto Yachay, Urcuquí 100119, Ecuador;
| | | | - Seidy Pedroso Santana
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Víctor Lamas 1290, Concepción P.O. Box 160-C, Chile; (T.I.R.); (C.A.V.-A.); (S.P.S.); (N.C.P.)
| | - Natalie C. Parra
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Víctor Lamas 1290, Concepción P.O. Box 160-C, Chile; (T.I.R.); (C.A.V.-A.); (S.P.S.); (N.C.P.)
| | - Jorge Roberto Toledo Alonso
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Víctor Lamas 1290, Concepción P.O. Box 160-C, Chile; (T.I.R.); (C.A.V.-A.); (S.P.S.); (N.C.P.)
| |
Collapse
|
38
|
Shmeleva EV, Colucci F. Maternal natural killer cells at the intersection between reproduction and mucosal immunity. Mucosal Immunol 2021; 14:991-1005. [PMID: 33903735 PMCID: PMC8071844 DOI: 10.1038/s41385-020-00374-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/24/2020] [Accepted: 12/02/2020] [Indexed: 02/07/2023]
Abstract
Many maternal immune cells populate the decidua, which is the mucosal lining of the uterus transformed during pregnancy. Here, abundant natural killer (NK) cells and macrophages help the uterine vasculature adapt to fetal demands for gas and nutrients, thereby supporting fetal growth. Fetal trophoblast cells budding off the forming placenta and invading deep into maternal tissues come into contact with these and other immune cells. Besides their homeostatic functions, decidual NK cells can respond to pathogens during infection, but in doing so, they may become conflicted between destroying the invader and sustaining fetoplacental growth. We review how maternal NK cells balance their double duty both in the local microenvironment of the uterus and systemically, during toxoplasmosis, influenza, cytomegalovirus, malaria and other infections that threat pregnancy. We also discuss recent developments in the understanding of NK-cell responses to SARS-Cov-2 infection and the possible dangers of COVID-19 during pregnancy.
Collapse
Affiliation(s)
- Evgeniya V Shmeleva
- Department of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, CB2 0SW, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Francesco Colucci
- Department of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, CB2 0SW, UK.
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
| |
Collapse
|
39
|
Tcyganov EN, Hanabuchi S, Hashimoto A, Campbell D, Kar G, Slidel TW, Cayatte C, Landry A, Pilataxi F, Hayes S, Dougherty B, Hicks KC, Mulgrew K, Tang CHA, Hu CCA, Guo W, Grivennikov S, Ali MAA, Beltra JC, Wherry EJ, Nefedova Y, Gabrilovich DI. Distinct mechanisms govern populations of myeloid-derived suppressor cells in chronic viral infection and cancer. J Clin Invest 2021; 131:e145971. [PMID: 34228641 DOI: 10.1172/jci145971] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 07/01/2021] [Indexed: 12/20/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are major negative regulators of immune responses in cancer and chronic infections. It remains unclear if regulation of MDSC activity in different conditions is controlled by similar mechanisms. We compared MDSCs in mice with cancer and lymphocytic choriomeningitis virus (LCMV) infection. Chronic LCMV infection caused the development of monocytic MDSCs (M-MDSCs) but did not induce polymorphonuclear MDSCs (PMN-MDSCs). In contrast, both MDSC populations were present in cancer models. An acquisition of immune-suppressive activity by PMN-MDSCs in cancer was controlled by IRE1α and ATF6 pathways of the endoplasmic reticulum (ER) stress response. Abrogation of PMN-MDSC activity by blockade of the ER stress response resulted in an increase in tumor-specific immune response and reduced tumor progression. In contrast, the ER stress response was dispensable for suppressive activity of M-MDSCs in cancer and LCMV infection. Acquisition of immune-suppressive activity by M-MDSCs in spleens was mediated by IFN-γ signaling. However, it was dispensable for suppressive activity of M-MDSCs in tumor tissues. Suppressive activity of M-MDSCs in tumors was retained due to the effect of IL-6 present at high concentrations in the tumor site. These results demonstrate disease- and population-specific mechanisms of MDSC accumulation and the need for targeting different pathways to achieve inactivation of these cells.
Collapse
Affiliation(s)
- Evgenii N Tcyganov
- Immunology, Microenvironment, and Metastasis Program, The Wistar Institute, Philadelphia, Pennsylvania, USA
| | | | - Ayumi Hashimoto
- Immunology, Microenvironment, and Metastasis Program, The Wistar Institute, Philadelphia, Pennsylvania, USA.,AstraZeneca, Gaithersburg, Maryland, USA
| | | | - Gozde Kar
- AstraZeneca, Translational Medicine, Research and Early Development, Oncology Research & Development, Cambridge, United Kingdom
| | - Timothy Wf Slidel
- AstraZeneca, Translational Medicine, Research and Early Development, Oncology Research & Development, Cambridge, United Kingdom
| | | | | | | | | | | | | | | | - Chih-Hang Anthony Tang
- Immunology, Microenvironment, and Metastasis Program, The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Chih-Chi Andrew Hu
- Immunology, Microenvironment, and Metastasis Program, The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Wei Guo
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania, USA
| | - Sergei Grivennikov
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, Pennsylvania, USA
| | | | - Jean-Christophe Beltra
- Department of Systems Pharmacology and Translational Therapeutics and.,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Parker Institute for Cancer Immunotherapy at University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - E John Wherry
- Department of Systems Pharmacology and Translational Therapeutics and.,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Parker Institute for Cancer Immunotherapy at University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Yulia Nefedova
- Immunology, Microenvironment, and Metastasis Program, The Wistar Institute, Philadelphia, Pennsylvania, USA
| | | |
Collapse
|
40
|
Bhagyaraj E, Wang H, Yang X, Hoffman C, Akgul A, Goodwin ZI, Pascual DW. Mucosal Vaccination Primes NK Cell-Dependent Development of CD8 + T Cells Against Pulmonary Brucella Infection. Front Immunol 2021; 12:697953. [PMID: 34305935 PMCID: PMC8293993 DOI: 10.3389/fimmu.2021.697953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/21/2021] [Indexed: 11/13/2022] Open
Abstract
Past studies with the live, double-mutant B. abortus (znBAZ) strain resulted in nearly complete protection of mice against pulmonary challenge with wild-type (wt) Brucella via a dominant CD8+ T cell response. To understand the contribution innate immune cells in priming CD8+ T cell responses, mice were nasally dosed with wt B. abortus, smooth vaccine strain 19 (S19), or znBAZ, and examined for innate immune cell activation. Flow cytometric analysis revealed that znBAZ, but not wt B. abortus nor S19 infection, induces up to a 5-fold increase in the frequency of IFN-γ-producing NK cells in mouse lungs. These NK cells express increased CXCR3 and Ki67, indicating their recruitment and proliferation subsequent to znBAZ infection. Their activation status was augmented noted by the increased NKp46 and granzyme B, but decreased NKG2A expression. Further analysis demonstrated that both lung caspase-1+ inflammatory monocytes and monocyte-derived macrophages secrete chemokines and cytokines responsible for NK cell recruitment and activation. Moreover, neutralizing IL-18, an NK cell-activating cytokine, reduced the znBAZ-induced early NK cell response. NK cell depletion also significantly impaired lung dendritic cell (DC) activation and migration to the lower respiratory lymph nodes (LRLNs). Both lung DC activation and migration to LRLNs were significantly impaired in NK cell-depleted or IFN-γ-/- mice, particularly the CD11b+ and monocytic DC subsets. Furthermore, znBAZ vaccination significantly induced CD8+ T cells, and upon in vivo NK cell depletion, CD8+ T cells were reduced 3-fold compared to isotype-treated mice. In summary, these data show that znBAZ induces lung IFN-γ+ NK cells, which plays a critical role in influencing lung DC activation, migration, and promoting protective CD8+ T cell development.
Collapse
Affiliation(s)
| | | | | | | | | | | | - David W. Pascual
- Department of Infectious Diseases & Immunology, University of Florida, Gainesville, FL, United States
| |
Collapse
|
41
|
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.
Collapse
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.
| |
Collapse
|
42
|
Askenase MH. Yo GABA GABA! A neurotransmitter interrupts DC-NK crosstalk. J Leukoc Biol 2021; 110:611-612. [PMID: 34197686 DOI: 10.1002/jlb.4ce0421-202r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Discussion on GABA as a key player in mediating neuroimmune communications between NK cells and DC.
Collapse
Affiliation(s)
- Michael H Askenase
- Department of Immunobiology, Yale School of Medicine, New Haven, Connecticut, USA.,Department of Neurology, Yale School of Medicine, New Haven, Connecticut, USA
| |
Collapse
|
43
|
Hamie M, Tawil N, El Hajj R, Najm R, Moodad S, Hleihel R, Karam M, El Sayyed S, Besteiro S, El-Sabban M, Dubremetz JF, Lebrun M, El Hajj H. P18 (SRS35/TgSAG4) Plays a Role in the Invasion and Virulence of Toxoplasma gondii. Front Immunol 2021; 12:643292. [PMID: 34262559 PMCID: PMC8273438 DOI: 10.3389/fimmu.2021.643292] [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: 12/17/2020] [Accepted: 06/10/2021] [Indexed: 11/13/2022] Open
Abstract
Toxoplasmosis is a prevalent parasitic disease caused by Toxoplasma gondii (T. gondii). Under the control of the host immune system, T. gondii persists as latent bradyzoite cysts. Immunosuppression leads to their reactivation, a potentially life-threatening condition. Interferon-gamma (IFN-γ) controls the different stages of toxoplasmosis. Here, we addressed the role of the parasite surface antigen P18, belonging to the Surface-Antigen 1 (SAG-1) Related Sequence (SRS) family, in a cyst-forming strain. Deletion of P18 gene (KO P18) impaired the invasion of parasites in macrophages and IFN-γ-mediated activation of macrophages further reduced the invasion capacity of this KO, as compared to WT strain. Mice infected by KO P18, showed a marked decrease in virulence during acute toxoplasmosis. This was consequent to less parasitemia, accompanied by a substantial recruitment of dendritic cells, macrophages and natural killer cells (NK). Furthermore, KO P18 resulted in a higher number of bradyzoite cysts, and a stronger inflammatory response. A prolonged survival of mice was observed upon immunosuppression of KO P18 infected BALB/c mice or upon oral infection of Severe Combined Immunodeficiency (SCID) mice, with intact macrophages and natural killer (NK) cells. In stark contrast, oral infection of NSG (NOD/Shi-scid/IL-2Rγnull) mice, defective in macrophages and NK cells, with KO P18, was as lethal as that of the control strain showing that the conversion from bradyzoites to tachyzoites is intact and, suggesting a role of P18 in the response to host IFN-γ. Collectively, these data demonstrate a role for P18 surface antigen in the invasion of macrophages and in the virulence of the parasite, during acute and chronic toxoplasmosis.
Collapse
Affiliation(s)
- Maguy Hamie
- Department of Experimental Pathology, Immunology and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Nadim Tawil
- Department of Experimental Pathology, Immunology and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Rana El Hajj
- Department of Biological Sciences, Beirut Arab University, Beirut, Lebanon
| | - Rania Najm
- Department of Experimental Pathology, Immunology and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Sara Moodad
- Department of Experimental Pathology, Immunology and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Rita Hleihel
- Department of Experimental Pathology, Immunology and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Martin Karam
- Department of Experimental Pathology, Immunology and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Sana El Sayyed
- Department of Experimental Pathology, Immunology and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | | | - Marwan El-Sabban
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | | | - Maryse Lebrun
- LPHI UMR5235, Univ Montpellier, CNRS, Montpellier, France
| | - Hiba El Hajj
- Department of Experimental Pathology, Immunology and Microbiology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| |
Collapse
|
44
|
Pazoki H, Mohammad Rahimi H, Mirjalali H, Niyyati M, Mosaffa N, Seyed Tabaei SJ, Shahrokh S, Asadzadeh Aghdaei H, Zali MR. Soluble total antigen derived from Toxoplasma gondii tachyzoites increased the expression levels of NLRP1, NLRP3, NLRC4, AIM2, and the release of mature form of IL1β, but downregulated the expression of IL1β and IL18 genes in THP-1cell line. Microb Pathog 2021; 158:105072. [PMID: 34192597 DOI: 10.1016/j.micpath.2021.105072] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 11/24/2022]
Abstract
Toxoplasma gondii (T. gondii) is an intracellular parasitic protozoan infecting homoeothermic animals and about a third of the world's population. Inflammasomes are intracellular multi-protein complex, which are activated by many factors. Inflammasomes are activated during toxoplasmosis; however, there are a lot of obscure aspects. THP-1 monocyte cells were converted to M0 macrophages by PMA and treated by 100 μg/mL soluble total Ag (STAg) derived from T. gondii strain RH for two time points 3 h and 24 h. After total RNA extraction and cDNA synthesis, the expression pattern of NLRP1, NLRP3, NLRC4, AIM2, IL1β, and IL18 was evaluated by relative real-time PCR. In addition, the cytokine release of IL1β and TNFα was evaluated in the supernatant of each well. The results showed statistically significant time-dependent overexpression of inflammasomes. NLRP1 and NLRP3 showed the higher and lower expression, respectively, during 3 h and 24 h after exposure. Both IL1β and IL18 downregulated 3 h after exposure. IL18 presented statistically significant upregulation after 24 h, but IL1β showed statistically significant downregulation after 24 h. The release of IL1β increased after 3 h, but it slightly decreased during 24 h after exposure. The concentration of TNFα showed an insignificant decrease compared to control, while it increased during 24 h after exposure. Taken together, this study suggested that T. gondii STAg induces NLRP1 more than NLRP3, NLRC4, and AIM2. Our findings also proposed that T. gondii STAg downregulates the gene expression of IL1β, but increases the release of this cytokine. It seems that Toxoplasma STAg probably increase the release of IL1β via activating NLRPs and AIM2 to cleave pro-caspase 1 to caspase 1 that leads to conversion of pro IL1β to mature IL1β.
Collapse
Affiliation(s)
- Hossein Pazoki
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Medical Parasitology and Mycology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hanieh Mohammad Rahimi
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Mirjalali
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Maryam Niyyati
- Department of Medical Parasitology and Mycology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Nariman Mosaffa
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Javad Seyed Tabaei
- Department of Medical Parasitology and Mycology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shabnam Shahrokh
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
45
|
The role of IL-12 in stimulating NK cells against Toxoplasma gondii infection: a mini-review. Parasitol Res 2021; 120:2303-2309. [PMID: 34110502 DOI: 10.1007/s00436-021-07204-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 05/31/2021] [Indexed: 10/21/2022]
Abstract
Toxoplasma gondii is an intracellular protozoan parasite that can remarkably infect, survive, and replicate in almost all mammalian cells and can cause severe neurological and ocular damage in immunocompromised individuals. It is known that Natural Killer cells (NK cells), as a type of cytotoxic lymphocyte, have critical protective roles in innate immunity during the T. gondii infection through releasing interferon gamma (IFN-γ). Interleukin 12 (IL-12) is a pivotal critical cytokine for the generation of IFN-γ-producing NK cells. Several studies have shown cytokines' impact on NK cell activation; and IL-2 has an important role with a potent stimulatory factor for NK cells. In this review, we summarized the mechanism of interleukin-12 production stimulation by T. gondii tachyzoites and discussed several factors affecting this mechanism.
Collapse
|
46
|
Abstract
COVID-19 is a respiratory infection similar to viral pneumonia and is caused by SARS-CoV-2. Chloroquine and hydroxychloroquine make up the major part of the treatment regimen for the management of COVID-19 infections, which are also commonly used in treatment of patients with malaria as well as autoimmune diseases like rheumatoid arthritis (RA). In this review, we analyzed the scientific evidences pertaining to any possible association of SARS-CoV-2 infection with RA. We thus believe that people predisposed to RA carry a higher infection risk than the general population both due to the iatrogenic effects of the RA related drug therapy. Thus COVID-19 pandemic may bring a higher risk of health emergency in complex diseases such as RA.
Collapse
Affiliation(s)
- Archana Tripathy
- Disease Biology Laboratory, School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT) deemed to be University, Bhubaneswar, Odisha, 751024, India
| | - Nitish Swain
- Disease Biology Laboratory, School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT) deemed to be University, Bhubaneswar, Odisha, 751024, India
| | - Bhawna Gupta
- Disease Biology Laboratory, School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT) deemed to be University, Bhubaneswar, Odisha, 751024, India
| |
Collapse
|
47
|
Human NK cells prime inflammatory DC precursors to induce Tc17 differentiation. Blood Adv 2021; 4:3990-4006. [PMID: 32841340 DOI: 10.1182/bloodadvances.2020002084] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/14/2020] [Indexed: 12/27/2022] Open
Abstract
Adaptive immune responses are acknowledged to evolve from innate immunity. However, limited information exists regarding whether encounters between innate cells direct the generation of specialized T-cell subsets. We aim to understand how natural killer (NK) cells modulate cell-mediated immunity in humans. We found that human CD14+CD16- monocytes that differentiate into inflammatory dendritic cells (DCs) are shaped at the early stages of differentiation by cell-to-cell interactions with NK cells. Although a fraction of monocytes is eliminated by NK-cell-mediated cytotoxicity, the polarization of interferon-γ (IFN-γ) at the NKp30-stabilized synapses triggers a stable IFN-γ signature in surviving monocytes that persists after their differentiation into DCs. Notably, NK-cell-instructed DCs drive the priming of type 17 CD8+ T cells (Tc17) with the capacity to produce IFN-γ and interleukin-17A. Compared with healthy donors, this cellular network is impaired in patients with classical NK-cell deficiency driven by mutations in the GATA2 gene. Our findings reveal a previously unrecognized connection by which Tc17-mediated immunity might be regulated by NK-cell-mediated tuning of antigen-presenting cells.
Collapse
|
48
|
Intestinal eosinophils, homeostasis and response to bacterial intrusion. Semin Immunopathol 2021; 43:295-306. [PMID: 33929602 PMCID: PMC8241669 DOI: 10.1007/s00281-021-00856-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/03/2021] [Indexed: 02/06/2023]
Abstract
Eosinophils are traditionally considered as end-stage effector cells involved in the pathogenesis of Th2 immune-mediated disorders as well as in the protection against parasite infection. However, this restricted view has recently been challenged by a series of studies revealing the highly plastic nature of these cells and implication in various homeostatic processes. Large numbers of eosinophils reside in the lamina propria of the gastrointestinal tract, at the front line of host defence, where they contribute to maintain the intestinal epithelial barrier function in the face of inflammation-associated epithelial cell damage. Eosinophils confer active protection against bacterial pathogens capable of penetrating the mucosal barrier through the release of cytotoxic compounds and the generation of extracellular DNA traps. Eosinophils also integrate tissue-specific cytokine signals such as IFN-γ, which synergise with bacterial recognition pathways to enforce different context-dependent functional responses, thereby ensuring a rapid adaptation to the ever-changing intestinal environment. The ability of eosinophils to regulate local immune responses and respond to microbial stimuli further supports the pivotal role of these cells in the maintenance of tissue homeostasis at the intestinal interface.
Collapse
|
49
|
Feng E, Balint E, Poznanski SM, Ashkar AA, Loeb M. Aging and Interferons: Impacts on Inflammation and Viral Disease Outcomes. Cells 2021; 10:708. [PMID: 33806810 PMCID: PMC8004738 DOI: 10.3390/cells10030708] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/19/2021] [Accepted: 03/21/2021] [Indexed: 12/16/2022] Open
Abstract
As highlighted by the COVID-19 global pandemic, elderly individuals comprise the majority of cases of severe viral infection outcomes and death. A combined inability to control viral replication and exacerbated inflammatory immune activation in elderly patients causes irreparable immune-mediated tissue pathology in response to infection. Key to these responses are type I, II, and III interferons (IFNs), which are involved in inducing an antiviral response, as well as controlling and suppressing inflammation and immunopathology. IFNs support monocyte/macrophage-stimulated immune responses that clear infection and promote their immunosuppressive functions that prevent excess inflammation and immune-mediated pathology. The timing and magnitude of IFN responses to infection are critical towards their immunoregulatory functions and ability to prevent immunopathology. Aging is associated with multiple defects in the ability of macrophages and dendritic cells to produce IFNs in response to viral infection, leading to a dysregulation of inflammatory immune responses. Understanding the implications of aging on IFN-regulated inflammation will give critical insights on how to treat and prevent severe infection in vulnerable individuals. In this review, we describe the causes of impaired IFN production in aging, and the evidence to suggest that these impairments impact the regulation of the innate and adaptive immune response to infection, thereby causing disease pathology.
Collapse
Affiliation(s)
| | | | | | - Ali A. Ashkar
- Department of Medicine, McMaster University, Hamilton, ON L8S 4L8, Canada; (E.F.); (E.B.); (S.M.P.); (M.L.)
| | | |
Collapse
|
50
|
Abstract
For over 35 years since Mosmann and Coffman proposed the seminal “type 1 T helper (Th1)/type 2 T helper (Th2)” hypothesis in 1986, the immunological community has appreciated that naïve CD4 T cells need to make important decisions upon their activation, namely to differentiate towards a Th1, Th2, Th17 (interleukin-17-producing T helper), follicular T helper (Tfh), or regulatory T cell (Treg) fate to orchestrate a variety of adaptive immune responses. The major molecular underpinnings of the Th1/Th2 effector fate choice had been initially characterized using excellent reductionist in vitro culture systems, through which the transcription factors T-bet and GATA3 were identified as the master regulators for the differentiation of Th1 and Th2 cells, respectively. However, Th1/Th2 cell differentiation and their cellular heterogeneity are usually determined by a combinatorial expression of multiple transcription factors, particularly in vivo, where dendritic cell (DC) and innate lymphoid cell (ILC) subsets can also influence T helper lineage choices. In addition, inflammatory cytokines that are capable of inducing Th17 cell differentiation are also found to be induced during typical Th1- or Th2-related immune responses, resulting in an alternative differentiation pathway, transiting from a Th17 cell phenotype towards Th1 or Th2 cells. In this review, we will discuss the recent advances in the field, focusing on some new players in the transcriptional network, contributions of DCs and ILCs, and alternative differentiation pathways towards understanding the Th1/Th2 effector choice in vivo.
Collapse
Affiliation(s)
- Matthew J Butcher
- Molecular and Cellular Immunoregulation Section, Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Jinfang Zhu
- Molecular and Cellular Immunoregulation Section, Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| |
Collapse
|