{"title":"Disrupting Siglec-mediated interactions to develop immunotherapies for cancer treatment.","authors":"Heinz Läubli, Ajit Varki","doi":"10.1080/14728222.2025.2557281","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Recent advances in cancer immunotherapy have improved patient outcomes, even in advanced stages of the disease. However, the effectiveness of current cancer immunotherapies remains limited to a small subset of patients because of resistance and an immunosuppressive tumor microenvironment.</p><p><strong>Areas covered: </strong>Research performed during the last years have identified immunosuppressive interactions between sialic acid-containing glycans and sialic acid-binding immunoglobulin-like lectin (Siglec) receptors as a potential new, targetable pathway to overcome resistance to immunotherapy. In addition, activatory Siglecs could be engaged to enhance anti-tumor immunity. In this review, we summarize accumulating preclinical evidence demonstrating the immunosuppressive role of sialoglycan-Siglec interactions in cancer. Additionally, we provide an overview of potential therapeutic strategies aimed at disrupting this immunosuppressive axis, including interventions currently being evaluated in early-phase clinical trials.</p><p><strong>Expert opinion: </strong>Preclinical data strongly suggests that disrupting sialic acid-Siglec interactions could significantly improve cancer immunotherapy, in particular by changing the immunosuppressive microenvironment. Further biological understanding is needed to successfully develop new therapeutics. First trials are running that target these interactions and will hopefully inform, which patients are benefitting from this treatment.</p>","PeriodicalId":12185,"journal":{"name":"Expert Opinion on Therapeutic Targets","volume":" ","pages":"613-619"},"PeriodicalIF":4.4000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Expert Opinion on Therapeutic Targets","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1080/14728222.2025.2557281","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/9/9 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"PHARMACOLOGY & PHARMACY","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction: Recent advances in cancer immunotherapy have improved patient outcomes, even in advanced stages of the disease. However, the effectiveness of current cancer immunotherapies remains limited to a small subset of patients because of resistance and an immunosuppressive tumor microenvironment.
Areas covered: Research performed during the last years have identified immunosuppressive interactions between sialic acid-containing glycans and sialic acid-binding immunoglobulin-like lectin (Siglec) receptors as a potential new, targetable pathway to overcome resistance to immunotherapy. In addition, activatory Siglecs could be engaged to enhance anti-tumor immunity. In this review, we summarize accumulating preclinical evidence demonstrating the immunosuppressive role of sialoglycan-Siglec interactions in cancer. Additionally, we provide an overview of potential therapeutic strategies aimed at disrupting this immunosuppressive axis, including interventions currently being evaluated in early-phase clinical trials.
Expert opinion: Preclinical data strongly suggests that disrupting sialic acid-Siglec interactions could significantly improve cancer immunotherapy, in particular by changing the immunosuppressive microenvironment. Further biological understanding is needed to successfully develop new therapeutics. First trials are running that target these interactions and will hopefully inform, which patients are benefitting from this treatment.
期刊介绍:
The journal evaluates molecules, signalling pathways, receptors and other therapeutic targets and their potential as candidates for drug development. Articles in this journal focus on the molecular level and early preclinical studies. Articles should not include clinical information including specific drugs and clinical trials.
The Editors welcome:
Reviews covering novel disease targets at the molecular level and information on early preclinical studies and their implications for future drug development.
Articles should not include clinical information including specific drugs and clinical trials.
Original research papers reporting results of target selection and validation studies and basic mechanism of action studies for investigative and marketed drugs.
The audience consists of scientists, managers and decision makers in the pharmaceutical industry, academic researchers working in the field of molecular medicine and others closely involved in R&D.