ArticleCancer immunology, immunotherapy : CII2024
Activation of cytotoxic lymphocytes through CD6 enhances killing of cancer cells.
Article in Cancer immunology, immunotherapy : CII, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 9 citations in OpenAlex.
- Targeting CD6 in solid tumors: safety, early efficacy, and mechanistic insights from a proof-of-concept trial of itolizumab.Journal for immunotherapy of cancer · 2026Article
- CD6-Directed Immunotherapy Targets Breast Cancer Stem Cell Function and Enhances Immune-Mediated Cytotoxicity in Triple-Negative Breast Cancer.Biomolecules · 2026Article
- Targeting regulatory T cells in the prostate cancer microenvironment: From mechanisms to therapeutics (Review).Molecular medicine reports · 2026Review
- Identification and validation of an intratumor heterogeneity-related prognostic signature in triple-negative breast cancer: a study based on integrative machine learning and single-cell sequencing.Breast cancer research : BCR · 2026Article
- Immunotherapy of cancer without induction of autoimmunity - CD6 as a therapeutic target.Frontiers in immunology · 2026Review
- Anti-CD6 monoclonal antibody UMCD6 induces CD6 internalization, remodels costimulatory receptor availability, and modulates CD4Frontiers in immunology · 2026Article
- Article
- Histone methyltransferase DOT1L maintains cell state and restricts cytotoxic potential of CD8 T cells.Science advances · 2025Article
- ALCAM-CD6 axis suppression: a key determinant of immune-mediated metastasis recurrence in stage III non-small cell lung cancer.Journal for immunotherapy of cancer · 2025Article
- CDCP1-targeting ADC outperforms standard therapies in Ras-mutant pancreatic cancer.Molecular therapy. Oncology · 2025Article
- Differential Role of CD318 in Tumor Immunity Affecting Prognosis in Colorectal Cancer Compared to Other Adenocarcinomas.Journal of clinical medicine · 2025Article
- CD6 in Human Disease.Cells · 2025Review
- CD6 regulates CD4 T follicular helper cell differentiation and humoral immunity during murine coronavirus infection.Journal of virology · 2025Article
- Itolizumab regulates activating and inhibitory signals on effector cells, improving their cytotoxicity against CD318+ tumor cell lines.Frontiers in immunology · 2025Article
- CD6 Regulates CD4 T Follicular Helper Cell Differentiation and Humoral Immunity During Murine Coronavirus Infection.bioRxiv : the preprint server for biology · 2024Article
- Ligands of CD6: roles in the pathogenesis and treatment of cancer.Frontiers in immunology · 2024Review
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Authors and funding
19 authors at 2 institutions in 1 country.
Funding
Abstract
Immune checkpoint inhibitors (ICIs) have demonstrated efficacy and improved survival in a growing number of cancers. Despite their success, ICIs are associated with immune-related adverse events that can interfere with their use. Therefore, safer approaches are needed. CD6, expressed by T-lymphocytes and human NK cells, engages in cell-cell interactions by binding to its ligands CD166 (ALCAM) and CD318 (CDCP1). CD6 is a target protein for regulating immune responses and is required for the development of several mouse models of autoimmunity. Interestingly, CD6 is exclusively expressed on immune cells while CD318 is strongly expressed on most cancers. Here we demonstrate that disrupting the CD6-CD318 axis with UMCD6, an anti-CD6 monoclonal antibody, prolongs survival of mice in xenograft mouse models of human breast and prostate cancer, treated with infusions of human lymphocytes. Analysis of tumor-infiltrating immune cells showed that augmentation of lymphocyte cytotoxicity by UMCD6 is due to effects of this antibody on NK, NKT and CD8 + T cells. In particular, tumor-infiltrating cytotoxic lymphocytes from UMCD6-treated mice expressed higher levels of perforin and were found in higher proportions than those from IgG-treated mice. Moreover, RNA-seq analysis of human NK-92 cells treated with UMCD6 revealed that UMCD6 up-regulates the NKG2D-DAP10 receptor complex, important in NK cell activation, as well as its downstream target PI3K. Our results now describe the phenotypic changes that occur on immune cells upon treatment with UMCD6 and further confirm that the CD6-CD318 axis can regulate the activation state of cytotoxic lymphocytes and their positioning within the tumor microenvironment.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.