Seminars in ImmunologyPub Date : 2026-03-01Epub Date: 2026-03-10DOI: 10.1016/j.smim.2025.102000
Lorenz Kocheise , Mohamed-Reda Benmebarek , Mitchell Ho , Tim F. Greten
{"title":"Chimeric antigen receptor therapy for hepatocellular carcinoma","authors":"Lorenz Kocheise , Mohamed-Reda Benmebarek , Mitchell Ho , Tim F. Greten","doi":"10.1016/j.smim.2025.102000","DOIUrl":"10.1016/j.smim.2025.102000","url":null,"abstract":"<div><div>Adapting the success of chimeric antigen receptor T cell therapy from hematologic malignancies to solid tumors has become a major focus of ongoing research activities. However, the unique challenges posed by solid tumors, such as limited immune cell infiltration, reduced T cell persistence, and antigen loss, have led to only limited success in early clinical trials. Recently, combinatorial strategies incorporating next-generation armored CAR T cells along with various alternative immune cell types have rekindled optimism in the field. Hepatocellular carcinoma represents a distinct entity due to the unique characteristics of the liver microenvironment, including the influence of lipid metabolism, bile acids, and microbial compounds from the gut-liver axis. Furthermore, HCC is characterized by a variety of tumor-specific and tumor-associated antigens, enabling targeted approaches with minimal risk of on-target/off-tumor effects. The unique complexity of HCC, along with the underlying liver diseases that give rise to these tumors, presents both challenges and opportunities for cellular therapies. In this review, we examine the current landscape of CAR T cell therapy for HCC, highlighting recent clinical and preclinical developments. Furthermore, we discuss why HCC may be especially well-suited for tailored CAR-based strategies, given the liver’s specific anatomical and immunological properties.</div></div>","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"81 ","pages":"Article 102000"},"PeriodicalIF":7.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seminars in ImmunologyPub Date : 2026-03-01Epub Date: 2026-02-21DOI: 10.1016/j.smim.2026.102018
Simone Mader, Markus Reindl
{"title":"Editorial: Autoimmune diseases of the central nervous system","authors":"Simone Mader, Markus Reindl","doi":"10.1016/j.smim.2026.102018","DOIUrl":"10.1016/j.smim.2026.102018","url":null,"abstract":"","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"81 ","pages":"Article 102018"},"PeriodicalIF":7.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146776845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seminars in ImmunologyPub Date : 2026-03-01Epub Date: 2025-12-16DOI: 10.1016/j.smim.2025.102013
Markus F. Neurath
{"title":"New insights into Th9 cells in inflammatory bowel diseases","authors":"Markus F. Neurath","doi":"10.1016/j.smim.2025.102013","DOIUrl":"10.1016/j.smim.2025.102013","url":null,"abstract":"<div><div>The involvement of T helper cells in the pathogenesis of inflammatory bowel diseases (IBD), including Crohn's disease and ulcerative colitis, has been a subject of considerable research interest. The clinical picture of IBD is characterised by chronic intestinal inflammatory processes that may lead to complications such as stenoses, abscesses, fistulas and colorectal cancer. Recent findings have indicated that T helper 9 (Th9) cells, which secrete the cytokine IL-9, play a role in the pathogenesis of IBD. These cells have been observed to damage the intestinal epithelium by IL-9 production and to amplify the mucosal inflammatory immune response by activating other immune cells. Studies utilising murine models of chronic intestinal inflammation have demonstrated that targeting IL-9 or Th9 cells can alleviate inflammatory responses. In consideration of these findings, it will be of interest to delve into the potential of neutralizing IL-9 function as a therapeutic intervention for patients suffering from IBD.</div></div>","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"81 ","pages":"Article 102013"},"PeriodicalIF":7.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145776192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seminars in ImmunologyPub Date : 2026-03-01Epub Date: 2025-11-28DOI: 10.1016/j.smim.2025.102005
Stefania Roma , Filippo Colombo , Lucia De Monte , Maria Pia Protti
{"title":"IL-1 family members as regulators of lymphoid type-2 immunity in cancer","authors":"Stefania Roma , Filippo Colombo , Lucia De Monte , Maria Pia Protti","doi":"10.1016/j.smim.2025.102005","DOIUrl":"10.1016/j.smim.2025.102005","url":null,"abstract":"<div><div>IL-1 family members, such as IL-1 and IL-33, are present in the tumor microenvironment and exert tumor-intrinsic and tumor-extrinsic functions with both pro- and anti-tumor effects. Among their immunoregulatory roles, both cytokines contribute to lymphoid type-2 immunity. IL-1 can indirectly promote CD4<sup>+</sup> Th2 responses by inducing thymic stromal lymphopoietin production by tumor cells or cancer associated fibroblasts that conditions Th2-polarizing dendritic cells, whereas IL-33 is a potent direct activator of CD4<sup>+</sup> Th2 and other type-2 immune cells, such as group 2 innate lymphoid cells (ILC2s). In a large majority of established human cancers, CD4<sup>+</sup> Th2 cell responses correlate with tumor-promotion, whereas expansion of ILC2s can either suppress or promote tumor immunity in a more balanced way, leading to tumor progression or regression. Interestingly, the two prototypical Th2 cytokines IL-13 and IL-5 exert apparently pro- and anti-tumor opposing functions by recruitment of myeloid-derived cells and eosinophils, respectively. In addition, anti-tumor ILC2s under the influence of the tumor microenvironment may become dysfunctional, ultimately resulting in tumor-progression. Understanding the specific cancer context and considering the similarities as well as the distinctive features of the two lymphoid type-2 cell subsets is essential for developing effective immunotherapeutic strategies by targeting the IL-1 and IL-33 cytokines.</div></div>","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"81 ","pages":"Article 102005"},"PeriodicalIF":7.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145624799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seminars in ImmunologyPub Date : 2026-03-01Epub Date: 2026-02-11DOI: 10.1016/j.smim.2026.102016
Andreas Lutterotti , Roland Martin
{"title":"Therapeutic immune tolerance for central nervous system autoimmune diseases – Prospects, challenges and pitfalls","authors":"Andreas Lutterotti , Roland Martin","doi":"10.1016/j.smim.2026.102016","DOIUrl":"10.1016/j.smim.2026.102016","url":null,"abstract":"<div><div>Autoimmune diseases of the central nervous system (CNS), including multiple sclerosis (MS), neuromyelitis optica spectrum disorders (NMOSD), and myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD), are characterized by chronic inflammation driven by autoreactive immune responses against CNS antigens. Successes in the development of efficacious immunotherapies are hampered by the risks of broad immunosuppression and the consequences of compromising physiological immune functions. Antigen-specific immune tolerance offers a promising alternative by selectively silencing pathogenic immune responses while preserving global immune competence. Advances in understanding of pathophysiology and target antigens in multiple sclerosis, neuromyleitis optica spectrum disroders (NMOSD) myelin oligondendrocyte protein (MOG) antibody associated disease (MOGAD) have enabled the development of antigen-based tolerization strategies. These approaches primarily act through restoration of peripheral tolerance via modulation of autoreactive T and B cell responses. Clinical trials in MS and NMOSD have provided critical insights into key challenges of translation and clinical development, including optimal antigen selection, route of administration, patient stratification and trial design constraints. Future progress in MS, NMO and MOGAD will also depend on precise characterization of immunodominant epitopes and the development of standardized biomarkers of tolerance induction and their integration in novel trial designs. Successful induction of durable, antigen-specific immune tolerance would represent a paradigm shift in treating CNS autoimmunity, enabling disease-specific, safe, and sustained remission without generalized immunosuppression.</div></div>","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"81 ","pages":"Article 102016"},"PeriodicalIF":7.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146183158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seminars in ImmunologyPub Date : 2026-03-01Epub Date: 2025-12-02DOI: 10.1016/j.smim.2025.101998
Jahanara Rajwani , Douglas J. Mahoney
{"title":"The role of non-cancer cell infections in oncolytic virus therapy","authors":"Jahanara Rajwani , Douglas J. Mahoney","doi":"10.1016/j.smim.2025.101998","DOIUrl":"10.1016/j.smim.2025.101998","url":null,"abstract":"<div><div>Oncolytic viruses (OV) are designed to seek out and kill cancer cells, while simultaneously inciting potent antitumour immunity. While their exact mechanism of action is incompletely understood, therapeutic activity is proposed to rely on viruses selectively infecting cancer cells – not only to debulk the tumour, but also to elicit immunogenic cell death (ICD) of cancer cells and subsequent antigen-specific immunity. However, despite being engineered for cancer cell selectivity, several studies have demonstrated OV-induced antitumour activity against tumours that do not robustly support virus infection <em>in vivo</em>. Further, many non-malignant cells within, and outside of, the tumour microenvironment (TME) have been shown to support OV infection, and in some cases, contribute to tumour regression. These unexpected findings warrant a more comprehensive understanding of the mechanisms by which OV-infected non-cancer cells elicit antitumour activity. Thus, in this review, we aim to summarize current knowledge on the role of non-cancer cell infections in OV therapy. We focus our attention primarily on infected non-cancer cells in the TME, including endothelial cells, fibroblasts and perivascular cells, as well as those in secondary lymphoid organs (spleen and lymph nodes). In addition, we include a brief commentary on the impact of liver and peripheral blood mononuclear cell infections. Interestingly, while the consequences of some non-malignant cell infections appear to be similar across multiple OVs, the outcome of other infections are OV-specific. This highlights the need to better understand cellular infections for each OV, in order to leverage this information for the development of next generation OV platforms.</div></div>","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"81 ","pages":"Article 101998"},"PeriodicalIF":7.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145670429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seminars in ImmunologyPub Date : 2026-03-01Epub Date: 2026-02-24DOI: 10.1016/j.smim.2026.102017
Jyotsna Dandotiya , Srikanth Sadhu , Rucha R. Chandwaskar , Amit Awasthi
{"title":"Emerging roles of IL-9 and Th9 cells in respiratory viral illnesses","authors":"Jyotsna Dandotiya , Srikanth Sadhu , Rucha R. Chandwaskar , Amit Awasthi","doi":"10.1016/j.smim.2026.102017","DOIUrl":"10.1016/j.smim.2026.102017","url":null,"abstract":"<div><div>Upon antigenic stimulation and cytokine cues, CD4⁺ T cells differentiate into specialized helper subsets, giving rise to Th1, Th2, Th9 and Th17 cell lineages. These subsets orchestrate distinct immune functions that protect the host but can also drive immunopathology when dysregulated. The classical Th1–Th2 paradigm expanded with the discovery of Th17 and Th9 cells, revealing greater diversity and complexity in Th cell biology. Th9 cells<strong>,</strong> generated under the influence of TGF-β and IL-4, are defined by robust production of interleukin-9 (IL-9). IL-9 is now recognized as a multifunctional mediator produced by Th9 cells, mast cells, ILC2s, Tregs and certain Th17 subsets. Fate-mapping and reporter mouse models have improved our understanding of IL-9–producing immunocytes, though limitations remain in defining temporal and tissue-specific dynamics. As shown earlier, IL-9 promotes mastcell proliferation, mucus hypersecretion, epithelial changes and airway remodelling in allergic inflammation and asthma. Genetic studies have linked IL-9/IL-9 receptor variants to increased susceptibility to allergic diseases such as asthma. Similarly, during respiratory viral infections, including RSV and COVID-19, IL-9 amplifies type 2 inflammation, granulocyte recruitment and mucus production, exacerbating airway obstruction. In fact, emerging evidence implicates a Foxo1-IL-9 axis in COVID-19, where IL-9 enhances lung inflammation and impairs antiviral interferon-stimulated gene responses. Collectively, IL-9 represents a context-dependent driver of virus-induced lung pathology and a promising therapeutic target requiring deeper mechanistic and translational investigation.</div></div>","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"81 ","pages":"Article 102017"},"PeriodicalIF":7.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147312076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"83 ","pages":""},"PeriodicalIF":7.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148171416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seminars in ImmunologyPub Date : 2025-12-01Epub Date: 2025-11-01DOI: 10.1016/j.smim.2025.102003
Javier Orozco-Cordoba, Cleofas Marcial-Medina, Paula Licona-Limón
{"title":"TH9 cells and interleukin-9 in parasitic infections: Updates, opportunities, and challenges","authors":"Javier Orozco-Cordoba, Cleofas Marcial-Medina, Paula Licona-Limón","doi":"10.1016/j.smim.2025.102003","DOIUrl":"10.1016/j.smim.2025.102003","url":null,"abstract":"<div><div>Over the past decades, Interleukin-9 (IL-9) and T<sub>H</sub>9 cells, have gained attention as important regulators of diverse responses throughout the promotion of activation and expansion of diverse cell subtypes. T<sub>H</sub>9 cells have been studied in several immunological contexts, including allergic and autoimmune responses, cancer and infectious diseases; being the latest one, specifically those induced by parasites, the main focus of this review. T<sub>H</sub>9 cells have risen as critical mediators of the immune response against parasites, including roundworms, flatworms, tapeworms, and hookworms; however, the number of parasitic diseases influenced by this cell subset was still limited in studies published up to 2016. In this review, we aimed to summarize the latest findings regarding the roles of T<sub>H</sub>9 cells and IL-9 in parasitic infections, seeking to provide a comprehensive overview of latest knowledge in the field including the models of parasites never studied. We compile recent evidence highlighting both protective and pathogenic roles for IL-9, discuss the challenges to unravel the complexity of T<sub>H</sub>9-IL-9 mediated responses during parasitic infections, as well as the opportunities for therapeutic intervention that will help to translate new findings into future clinical applications.</div></div>","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"80 ","pages":"Article 102003"},"PeriodicalIF":7.8,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145416831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seminars in ImmunologyPub Date : 2025-12-01Epub Date: 2025-09-30DOI: 10.1016/j.smim.2025.101995
Negar Sharifi , Amir Emamie , Nastaran Rafiee , Salar Pashangzadeh , Eknoor Walia , Nikolas Tim Martin , Huy-Dung Hoang , Xiao Xiang , Tommy Alain
{"title":"Reovirus oncolysis and the next frontiers for this unique oncoviral immunotherapy","authors":"Negar Sharifi , Amir Emamie , Nastaran Rafiee , Salar Pashangzadeh , Eknoor Walia , Nikolas Tim Martin , Huy-Dung Hoang , Xiao Xiang , Tommy Alain","doi":"10.1016/j.smim.2025.101995","DOIUrl":"10.1016/j.smim.2025.101995","url":null,"abstract":"<div><div>Reovirus is one of the most clinically investigated oncolytic viruses, with over 50 clinical trials and more than 1700 patients treated to date. Although it has yet to achieve complete regulatory approval, reovirus remains a promising oncolytic virus candidate for cancer immunotherapy due to its preferential replication in malignant cells, minimal toxicity in normal tissues, availability to be delivered via multiple routes, and strong immunostimulatory properties. As a non-enveloped, double-stranded RNA virus of the <em>Reoviridae</em> family, reovirus is typically asymptomatic in healthy individuals unlike its pathogenic relative, rotavirus, thus making it especially attractive for clinical use. Recent research has significantly expanded its therapeutic potential beyond direct oncolysis, highlighting its ability to remodel the tumor microenvironment, activate both innate and adaptive immunity, and synergize with chemotherapy, radiotherapy, and immune checkpoint inhibitors. Moreover, advances in oral delivery, nanoparticle encapsulation, mesenchymal stem cell-mediated transport, and genetic engineering, have further enhanced its safety, targeting precision, and therapeutic efficacy. This review summarizes recent breakthroughs in reovirus-based virotherapy and explores emerging strategies that may unlock its full potential as a next-generation immunotherapeutic platform.</div></div>","PeriodicalId":49546,"journal":{"name":"Seminars in Immunology","volume":"80 ","pages":"Article 101995"},"PeriodicalIF":7.8,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}