{"title":"TIM-3: a tumor-associated antigen beyond checkpoint inhibition?","authors":"Stefan Barth, Krupa Naran","doi":"10.1093/immadv/ltac021","DOIUrl":null,"url":null,"abstract":"<p><p>Immune checkpoint inhibitors are one of the most remarkable immunomodulatory therapies of current times. Sabatolimab is a high-affinity, humanized anti-TIM-3 monoclonal antibody currently in development for patients with myeloproliferative disorders, including acute myeloid leukemia and myelodysplastic syndromes. By targeting TIM-3, a receptor expressed on various immune effector cells as well as myeloid cells, multiple mechanisms of action that are distinct from canonical immune checkpoint inhibitors are in play - (i) blockade of TIM-3 and its ligands PtdSer/galectin-9, (ii) modulation of leukemic cell self-renewal as well as (iii) antibody-dependent phagocytosis of TIM-3-expressing leukemic cells. Novel immunotherapies such as sabatolimab which enhance the antitumor immune response on converging fronts represent the promise of a continuously replenished armoury for the treatment of cancer.</p>","PeriodicalId":73353,"journal":{"name":"Immunotherapy advances","volume":null,"pages":null},"PeriodicalIF":4.1000,"publicationDate":"2022-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/52/41/ltac021.PMC9669666.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Immunotherapy advances","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1093/immadv/ltac021","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
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Abstract
Immune checkpoint inhibitors are one of the most remarkable immunomodulatory therapies of current times. Sabatolimab is a high-affinity, humanized anti-TIM-3 monoclonal antibody currently in development for patients with myeloproliferative disorders, including acute myeloid leukemia and myelodysplastic syndromes. By targeting TIM-3, a receptor expressed on various immune effector cells as well as myeloid cells, multiple mechanisms of action that are distinct from canonical immune checkpoint inhibitors are in play - (i) blockade of TIM-3 and its ligands PtdSer/galectin-9, (ii) modulation of leukemic cell self-renewal as well as (iii) antibody-dependent phagocytosis of TIM-3-expressing leukemic cells. Novel immunotherapies such as sabatolimab which enhance the antitumor immune response on converging fronts represent the promise of a continuously replenished armoury for the treatment of cancer.
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