ArticleJournal for immunotherapy of cancer2025
CD155 blockade enhances allogeneic natural killer cell-mediated antitumor response against osteosarcoma.
Article in Journal for immunotherapy of cancer, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- CD155 and its receptors in glioma: prospects for emerging immune checkpoint inhibitors.Acta neuropathologica communications · 2026Review
- CD155 links tumor immunotype to epithelial-directed precision therapy beyond checkpoint inhibition in cervical cancer.Journal for immunotherapy of cancer · 2026Article
- Early Marrow Microenvironment Immune Patterns After Hematopoietic Stem Cell Transplant in Pediatric Acute Lymphoblastic Leukemia Are Associated with Later Development of Chronic GvHD and Relapse.International journal of molecular sciences · 2026Article
- PD‑L1 deficient exosomes derived from lung cancer cell line enhances NK cell‑mediated anti‑tumor immunity against lung cancer.Cell communication and signaling : CCS · 2026Article
- Navigating the immunosuppressive abyss: current hurdles and innovative breakthroughs in neoadjuvant immunotherapy for osteosarcoma.Frontiers in immunology · 2026Review
- Metabolic-immune crosstalk in osteosarcoma: mechanisms and therapeutic opportunities.Frontiers in immunology · 2026Review
- TIM-3 blockade enhances ex vivo stimulated allogeneic NK cell therapy for relapsed murine neuroblastoma after hematopoietic cell transplant.Journal for immunotherapy of cancer · 2025Article
- Review
- HSP47 inhibition-induced CD155 expression through TRAF2 deubiquitination promotes tumor immune evasion.Journal for immunotherapy of cancer · 2025Article
- CD155 as a therapeutic target in alveolar echinococcosis: insights from anFrontiers in microbiology · 2025Article
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17 authors.
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Abstract
backgroundAllogeneic bone marrow transplant (alloBMT) is curative for hematologic malignancies through the graft-versus-tumor (GVT) effect but has been ineffective for solid tumors like osteosarcoma (OS). OS expresses CD155 which interacts strongly with inhibitory receptors TIGIT and CD96 but also binds to activating receptor DNAM-1 on natural killer (NK) cells. CD155 has never been targeted after alloBMT. Combining adoptively transferred allogeneic NK (alloNK) cells with CD155 blockade after alloBMT may enhance a GVT effect against OS.
methodsMurine NK cells were activated and expanded ex vivo with superagonist interleukin (IL)-15/IL-15Rα. AlloNK and syngeneic NK (synNK) cell phenotype, cytotoxicity, cytokine production, and degranulation against CD155-expressing murine OS cell line K7M2 were assessed in vitro. Mice bearing pulmonary OS metastases underwent alloBMT and alloNK cell infusion with anti-CD155 either before or after tumor induction, with select groups receiving anti-DNAM-1 pretreated alloNK cells. Tumor growth, graft-versus-host disease and survival were monitored, and differential gene expression of lung tissue was assessed by RNA microarray.
resultsAlloNK cells exhibited superior cytotoxicity against CD155-expressing OS compared with synNK cells, and this activity was enhanced by CD155 blockade. CD155 blockade increased alloNK cell degranulation and interferon gamma production through DNAM-1. In vivo, CD155 blockade with alloNK infusion increased survival when treating OS that relapsed after alloBMT. No benefit was seen for treating established OS before alloBMT. Combining CD155 and anti-DNAM-1 pretreated alloNK did not affect survival and tumor control benefits seen with CD155 blockade alone. RNA microarray showed mice treated with alloNK and CD155 blockade had increased expression of cytotoxicity genes and the NKG2D ligand H60a, whereas mice treated with anti-DNAM-1 pretreated alloNK cells resulted in upregulation of NK cell inhibitory receptor genes. Whereas blocking DNAM-1 on alloNK abrogated cytotoxicity, blocking NKG2D had no effect, implying DNAM-1:CD155 engagement drives alloNK activation against OS.
conclusionsThese results demonstrate the safety and efficacy of infusing alloNK cells with CD155 blockade to mount a GVT effect against OS and show benefits are in part through DNAM-1. Defining the hierarchy of receptors that govern alloNK responses is critical to translating alloNK cell infusions and immune checkpoint inhibition for solid tumors treated with alloBMT.
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