ArticleJournal for immunotherapy of cancer2024
Enhanced IL-15-mediated NK cell activation and proliferation by an ADAM17 function-blocking antibody involves CD16A, CD137, and accessory cells.
Article in Journal for immunotherapy of cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Radiotherapy and DNA damage response inhibitors modestly sensitize HNSCC to NK cell killing, with ATM inhibition more effective than ATR inhibition.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2026Article
- Article
- Review
- Allogeneic CD56 + cell infusion as a bridge to hematopoietic stem cell transplantation in relapsed/refractory acute myeloid leukemia: a phase I clinical trial.Cancer immunology, immunotherapy : CII · 2026Article
- Dual-functioning Targeted ADAM17 Blocker CD16 (TAB16) mediates selective ADAM17 inhibition in NK cells and engages overexpressed ADAM17 in tumor cells to induce cytotoxicity.Frontiers in immunology · 2026Article
- Insights into ectodomain shedding as a novel target in natural killer cell-based immunotherapy for cancer.Frontiers in immunology · 2026Review
- The role of ADAM8 in intrahepatic cholangiocarcinoma.Discover oncology · 2025Review
- The role of NK cells in regulating tumorimmunity: current state, challenges and future strategies.Cancer cell international · 2025Review
- Translational Insights into NK Immunophenotyping: Comparative Surface Marker Analysis and Circulating Immune Cell Profiling in Cancer Immunotherapy.International journal of molecular sciences · 2025Review
- Natural Killer Cell-Mediated Antitumor Immunity: Molecular Mechanisms and Clinical Applications.MedComm · 2025Review
- Optimizing viral transduction in immune cell therapy manufacturing: key process design considerations.Journal of translational medicine · 2025Review
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Abstract
backgroundNatural killer (NK) cells are being extensively studied as a cell therapy for cancer. These cells are activated by recognition of ligands and antigens on tumor cells. Cytokine therapies, such as IL-15, are also broadly used to stimulate endogenous and adoptively transferred NK cells in patients with cancer. These stimuli activate the membrane protease ADAM17, which cleaves various cell-surface receptors on NK cells as a negative feedback loop to limit their cytolytic function. ADAM17 inhibition can enhance IL-15-mediated NK cell proliferation in vitro and in vivo. In this study, we investigated the underlying mechanism of this process.
methodsPeripheral blood mononuclear cells (PBMCs) or enriched NK cells from human peripheral blood, either unlabeled or labeled with a cell proliferation dye, were cultured for up to 7 days in the presence of rhIL-15±an ADAM17 function-blocking antibody. Different fully human versions of the antibody were generated; Medi-1 (IgG1), Medi-4 (IgG4), Medi-PGLALA, Medi-F(ab')
resultsThe ADAM17 function-blocking monoclonal antibody (mAb) Medi-1 markedly increased early NK cell activation by IL-15. By using different engineered versions of the antibody, we demonstrate involvement by CD16A, an activating Fcγ receptor and well-described ADAM17 substrate. Hence, Medi-1 when bound to ADAM17 on NK cells is engaged by CD16A and blocks its shedding, inducing and prolonging its signaling. This process did not promote evident NK cell fratricide or dysfunction. Synergistic signaling by Medi-1 and IL-15 enhanced the upregulation of CD137 on CD16A
conclusionsOur data reveal for the first time that CD16A and CD137 underpin Medi-1 enhancement of IL-15-driven NK cell activation and proliferation, respectively, with the latter requiring PBMC accessory cells. The use of Medi-1 represents a novel strategy to enhance IL-15-driven NK cell proliferation, and it may be of therapeutic importance by increasing the antitumor activity of NK cells in patients with cancer.
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