Zoe K Bedrosian, Elizabeth M Ruark, Neekun Sharma, Rachel B Silverstein, Allison Manning, Lauren Kohlsaat, Mary A Markiewicz
{"title":"NKG2D ligand expression on NK cells induces NKG2D-mediated cross-tolerization of cytokine signaling and reduces NK cell tumor immunity.","authors":"Zoe K Bedrosian, Elizabeth M Ruark, Neekun Sharma, Rachel B Silverstein, Allison Manning, Lauren Kohlsaat, Mary A Markiewicz","doi":"10.1093/jimmun/vkaf030","DOIUrl":"https://doi.org/10.1093/jimmun/vkaf030","url":null,"abstract":"<p><p>Studies support a role for natural killer (NK) cells in cancer control, making these cells attractive for immunotherapy. One method being tested to make effective NK cells is the ex vivo activation with interleukin (IL)-12, IL-15, and IL-18. We demonstrate that this induces NKG2D ligands on NK cells. By engaging NKG2D, this NKG2D ligand expression eliminated the ability of both mouse and human NK cells to control tumor growth in vivo and in vitro, respectively. NKG2D-NKG2D ligand interaction between mouse NK cells reduced NK cell proliferation, CD25 and T-bet expression, and tumor necrosis factor and interferon γ release. NKG2D signaling induced between human NK cells similarly decreased interferon γ but did not affect T-bet or CD25 expression. These data demonstrate that NKG2D signaling can cross-tolerize cytokine signaling and suggest that eliminating this signaling could be beneficial in NK cell adoptive therapy. Further, these results highlight a need to better delineate effects downstream of NKG2D signaling in human, rather than mouse, NK cells.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143811554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Antonio M Patterson, Hideki Nakano, Gregory S Whitehead, Christina L Wilkinson, Keiko Nakano, Abdull J Massri, Donald N Cook
{"title":"Lung-resident memory CD4+ T cells are dependent on Batf3.","authors":"Antonio M Patterson, Hideki Nakano, Gregory S Whitehead, Christina L Wilkinson, Keiko Nakano, Abdull J Massri, Donald N Cook","doi":"10.1093/jimmun/vkaf035","DOIUrl":"https://doi.org/10.1093/jimmun/vkaf035","url":null,"abstract":"<p><p>Tissue-resident memory cells contribute to allergen-induced inflammation and airway hyperresponsiveness, but relatively little is known of the cellular and molecular mechanisms underlying the accumulation of these cells in the lung. Here, we show that allergen-specific CD4+ resident memory T cells are virtually absent in lungs of mice lacking Batf3, a transcription factor required for the development of type 1 lung dendritic cells (cDC1). These animals become sensitized to inhaled allergens and display normal responses in a short-term house dust mite-dependent model of asthma. However, they have strongly reduced airway inflammation and weak airway hyperresponsiveness in a similar, but long-term model of asthma. Single-cell RNA sequencing revealed that Batf3-deficient mice lack a subset of lung-resident CD4+ T cells characterized by expression of the chemokine receptor-encoding gene, Cxcr6. Together, these data show that Batf3 promotes the development of CD4+ resident memory T cells and thus allergic responses to inhaled allergens.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
María Paula Morelli, Candela Martin, Joaquín Miguel Pellegrini, Federico Blanco, Fabiana Bigi, Lorena Ciallella, Rosa Musella, Adriana Rodriguez Mieres, Graciela C de Casado, Domingo Juan Palmero, Verónica Edith García
{"title":"Neutrophils from tuberculosis patients are polarized toward pro-inflammatory and anti-inflammatory phenotypes according to the disease severity.","authors":"María Paula Morelli, Candela Martin, Joaquín Miguel Pellegrini, Federico Blanco, Fabiana Bigi, Lorena Ciallella, Rosa Musella, Adriana Rodriguez Mieres, Graciela C de Casado, Domingo Juan Palmero, Verónica Edith García","doi":"10.1093/jimmun/vkaf010","DOIUrl":"https://doi.org/10.1093/jimmun/vkaf010","url":null,"abstract":"<p><p>Neutrophils are the first line of defense against pathogens, combating them by using several antimicrobial mechanisms. These cells display a remarkable plasticity that can be molded by the different environments that neutrophils confront to protect the host, therefore presenting diverse phenotypes. Actually, pro- and anti-inflammatory neutrophils populations (N1- and N2-like phenotypes) have been described in cancer and inflammatory disorders. However, the identification of N1/N2 neutrophil subtypes in human intracellular bacterial diseases remains unexplored. Here, we characterized neutrophils from tuberculosis (TB) patients presenting distinct immunological status according to their disease severity. TB patients were classified as high or low responders (HR or LR) in accordance with their immunity against Mycobacterium tuberculosis (Mtb). Interestingly, by analyzing the phenotypic and functional characteristics of neutrophils from the two groups of TB patients we demonstrated that HR patient's neutrophils display a pro-inflammatory N1-like phenotype, whereas LR patient's neutrophils show an anti-inflammatory N2-like phenotype. Remarkably, whereas neutrophils from both groups of patients phagocytized MtbH37Rv strain equally, HR TB's neutrophils displayed a significantly increased ability to kill pathogenic Mtb as compared to neutrophils from LR TB patients that presented a diminished capacity of bacterial elimination. Together, our findings suggest the existence of different subtypes of neutrophils in TB patients according to their immune response to Mtb and disease severity, indicating that neutrophils might be promising targets for TB host-directed therapy.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sterile production of interferons in the thymus.","authors":"Ryan J Martinez, Kristin A Hogquist","doi":"10.1093/jimmun/vkaf048","DOIUrl":"https://doi.org/10.1093/jimmun/vkaf048","url":null,"abstract":"<p><p>T-cell central tolerance is controlled by thymocyte TCR recognition of self-peptides presented by thymic APCs. While thymic epithelial cells are essential for T-cell central tolerance, a variety of other traditional APCs also play critical roles in T-cell selection. Similar to how peripheral APCs require activation to become effective, thymic APCs also require activation to become tolerogenic. Recent studies have identified IFNs as an essential factor for the activation and generation of an optimally tolerogenic thymic environment. In this review, we focus on interferon (IFN) production within the thymus and its effects on thymic APCs and developing thymocytes. We also examine the importance of T-cell tolerance to IFN itself as well as to interferon-stimulated proteins generated during peripheral immune responses.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The metabolic drivers of IFN-γ release: glycolysis and acetyl CoA ride in the front seat.","authors":"John Henderson, Steven O'Reilly","doi":"10.1093/jimmun/vkaf045","DOIUrl":"https://doi.org/10.1093/jimmun/vkaf045","url":null,"abstract":"<p><p>Interferon gamma (IFN-γ) is a pleotropic cytokine which is a central mediator of the immune response to pathogen infection, while also playing important roles in tumour suppression and the pathogenesis of various autoimmune diseases. Consequently, there is potential utility in the treatment of a number of pathological conditions via being able to modify IFN-γ secretion. T cells and natural killer (NK) cells are the primary IFN-γ sources, with metabolic rewiring prior to their activation and IFN-γ secretion in both a unifying feature. The mechanisms by which metabolic changes, particularly increased glycolysis, drive enhanced IFN-γ production are multi-faceted, but are likely focused on epigenetic changes via increased acetyl CoA levels which fuels histone acetylation. Herein, we discuss the mechanisms by which metabolic changes drive altered IFN-γ synthesis by immune cells.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Endi K Santosa, Jennifer M Zhang, John C Sauter, Mark Owyong, Joseph C Sun
{"title":"Cutting Edge: Cooperative interferon regulatory factor network shapes the NK-cell antiviral response.","authors":"Endi K Santosa, Jennifer M Zhang, John C Sauter, Mark Owyong, Joseph C Sun","doi":"10.1093/jimmun/vkaf041","DOIUrl":"https://doi.org/10.1093/jimmun/vkaf041","url":null,"abstract":"<p><p>Natural killer (NK) cells are innate lymphocytes that exhibit adaptive traits particularly evident during cytomegalovirus (CMV) infection. Following mouse CMV (MCMV) infection, NK cells upregulate the transcription factors IRF4 and IRF8, which are indispensable for their survival and proliferation upon viral infection. However, it is unclear whether these factors are expressed within the same individual cell and whether deficiency in one could be compensated by the other. In this study, we observed that a subset of NK cells co-express high levels of IRF4 and IRF8 in an NFκB-dependent manner. These IRF4HighIRF8High NK cells are specifically enriched for activated but immature cells with high proliferative potential during MCMV infection. Functionally, NK cells lacking both IRF4 and IRF8 develop normally, but experience a more severe expansion defect during virus exposure compared to NK cells deficient in a single factor. Thus, our study reveals a cooperative interplay between IRF4- and IRF8-dependent transcriptional networks in regulating NK-cell antiviral responses.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Europe B DiCillo, David S Pisetsky, Elisabet Svenungsson, Lina-Marcela Diaz-Gallo, Iva Gunnarsson, Thomas F Tedder
{"title":"Characterization of autoantibody profiles in clusters of systemic lupus erythematosus using a novel autoantigen discovery technology.","authors":"Europe B DiCillo, David S Pisetsky, Elisabet Svenungsson, Lina-Marcela Diaz-Gallo, Iva Gunnarsson, Thomas F Tedder","doi":"10.1093/jimmun/vkae025","DOIUrl":"https://doi.org/10.1093/jimmun/vkae025","url":null,"abstract":"<p><p>Systemic lupus erythematosus (SLE) is a complex systemic autoimmune disease characterized by a wide range of clinical and immunologic manifestations, most prominently, the production of autoantibodies to nuclear components (ANAs). A previous study delineated four SLE patient clusters based on autoantibody expression to common antigens. To further assess autoantibody diversity within these clusters, we surveyed serum autoantibody expression using a novel autoantigen discovery technology, the Antigenome Platform. This phage-based system assesses serum antibody interactions with large protein fragments (up to 250 amino acids) spanning approximately 90% of the human genome. Bound autoantibody targets were identified through next-generation sequencing and robust bioinformatics and statistical analysis. Our study revealed 88, 49, 10, and 24 autoantibodies that expand the characterization of four SLE clusters, including 24 autoantibodies that characterize a cluster of patients lacking common autoantibodies by conventional assays. Further, some autoantibodies identified have potential links to patient disease features. Although SLE is characterized by antinuclear antibody expression, a significant proportion of autoantigens (ranging from 28% to 54%) in each cluster localized to the cytoplasm, which suggests extensive autoreactivity beyond targets in the cell nucleus that formed the original basis of clustering. This study identifies new markers to aid in the clustering and understanding of SLE disease subtypes and provides a rationale for elucidating autoantibody expression in SLE beyond antinuclear antibodies.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The immunopathogenesis of SARS-CoV-2 infection: Overview of lessons learned in the first 5 years.","authors":"Otto O Yang","doi":"10.1093/jimmun/vkaf033","DOIUrl":"https://doi.org/10.1093/jimmun/vkaf033","url":null,"abstract":"<p><p>This review provides a broad overview of lessons learned in the five years since COVID-19 was identified. It is a bimodal disease, starting with an initially virus-driven phase, followed by resolution or ensuing inappropriate immune activation causing severe inflammation that is no longer strictly virus dependent. Humoral immunity is beneficial for preventing or attenuating the early stage, without benefit once the later stage begins. Neutralizing antibodies elicited by natural infection or vaccination are short-lived and highly vulnerable to viral sequence variation. By contrast, cellular immunity, particularly the CD8+ T cell arm, has a role in preventing or attenuating severe disease, is far less susceptible to viral variation, and is longer-lived than antibodies. Finally, an ill-defined phenomenon of prolonged symptoms after acute infection, termed \"long COVID,\" is poorly understood but may involve various immunologic defects that are hyperactivating or immunosuppressive. Remaining issues include needing to better understand the immune dysregulation of severe disease to allow more tailored therapeutic interventions, developing antibody strategies that cope with the viral spike sequence variability, prolonging vaccine efficacy, and unraveling the mechanisms of long COVID to design therapeutic approaches.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christine Anterasian, Anele Gela, Temwa-Dango Mwambene, Javeed A Shah, Josh Ivie, Kimberly A Dill-McFarland, Willem A Hanekom, Michael C Kiritsy, Christopher M Sassetti, Munyaradzi Musvosvi, Mark Hatherill, Thomas J Scriba, Thomas R Hawn
{"title":"BCG induced innate immune response heterogeneity and susceptibility to pediatric tuberculosis.","authors":"Christine Anterasian, Anele Gela, Temwa-Dango Mwambene, Javeed A Shah, Josh Ivie, Kimberly A Dill-McFarland, Willem A Hanekom, Michael C Kiritsy, Christopher M Sassetti, Munyaradzi Musvosvi, Mark Hatherill, Thomas J Scriba, Thomas R Hawn","doi":"10.1093/jimmun/vkae062","DOIUrl":"https://doi.org/10.1093/jimmun/vkae062","url":null,"abstract":"<p><p>Although immune responses to bacillus Calmette-Guerin (BCG)-vaccination and susceptibility to pediatric tuberculosis (TB) vary across individuals, the underlying cellular mechanism regulating this heterogeneity is poorly understood. We used a nested case-control study with a 2-yr prospective observation period to examine whether genetic variation is associated with BCG-induced innate immune responses and susceptibility to pediatric TB (N = 134 cases, 516 controls) in BCG-vaccinated infants. Whole blood collected at 10 wk of age from 189 control infants was stimulated with BCG or media and examined with flow cytometry to measure BCG-induced PDL1, CD40, and cytokine expression in myeloid (mDC) and plasmacytoid (pDC) dendritic cells, monocytes, and neutrophils. We used a cellular and clinical GWAS to assess for associations between genetic variants, BCG-induced innate immune responses, and susceptibility to TB. We identified 11 lead genetic variants at genome-wide level significance associated with BCG-induced cytokine and surface expression markers including PDL1 (5 pDCs, 3 mDCs, 1 monocytes), CD40 (1 mDCs), and IL-6 (1 monocytes). An IGLL1 variant (rs2096522) was associated with mDC CD40 expression (P = 1.6e-08) and was also discovered as a significant variant using a gene-based method. In the clinical GWAS, we identified 39 lead variants mapping to 74 genes suggestive of an association with susceptibility to pediatric TB (P < 1e-05), but no variant reached genome-wide significance. One clinical lead variant in the PDE8A region (rs1023844, P = 9.6e-07) was also an eQTL and associated with BCG-induced monocyte PDL1 expression. In summary, we identified genetic variants associated with heterogeneity in infant BCG-induced innate immune responses with potential immunoregulatory mechanisms.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lung NK cells are sufficient to control viral dissemination during respiratory MCMV infection.","authors":"Miles A Mundy, Delia Demers, Laurent Brossay","doi":"10.1093/jimmun/vkaf039","DOIUrl":"10.1093/jimmun/vkaf039","url":null,"abstract":"<p><p>Murine cytomegalovirus (MCMV) respiratory dissemination schemes, which mimic natural infection routes, have only recently become an area of investigation. Using an intratracheal (i.t.) infection method, we discovered that the respiratory infection route yields differential infection kinetics compared to the widely used intraperitoneal (i.p.) infection method. Remarkably, we find that respiratory infection results in limited dissemination, with the virus being mostly contained in the pulmonary tissue. Importantly, using Rag1, Ly49H, and natural killer (NK) cell-deficient animals, we find that lung conventional NK (cNK) cells play a critical role in preventing MCMV-induced morbidity. Mechanistically, we show that indirect activation of lung NK cells via interleukin (IL)-12 and type 1 interferon (IFN) inflammatory cytokines is dispensable, while direct activation via Ly49H is essential in preventing morbidity from i.t. infection. Additionally, we did not find a significant role for ILC2 or tissue-resident NK (trNK) cells in the prevention of viral dissemination, and we did not observe an increase in the abundance of these cells. These findings uncover an unanticipated role for pulmonary cNK cells in preventing viral dissemination from infected lungs.</p>","PeriodicalId":16045,"journal":{"name":"Journal of immunology","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}