ArticleJournal for immunotherapy of cancer2024
Mitochondrial metabolic reprogramming of macrophages and T cells enhances CD47 antibody-engineered oncolytic virus antitumor immunity.
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.
- Compartmental pH regulation in cancer and antitumor immunity: therapeutic opportunities and challenges.Apoptosis : an international journal on programmed cell death · 2026Review
- A Glucose Metabolism-Modulatory Nanobiohybrid Vaccine Platform Promotes Anti-Tumor Immunity by Orchestrating Autophagy-Dependent Cross-Presentation and HAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Potential of RAD51C as a hub gene and therapeutic target in bladder cancer: insights from bioinformatics and experimental analysis.International journal of surgery (London, England) · 2026Article
- Targeting caveolin-1: dual challenges in tumor immunity and drug therapy strategies.Cancer cell international · 2026Review
- Progress in Designing Cytokine Antagonist Antibodies for Cancer Therapy.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026Review
- Targeting Tumor-Associated Macrophages to Reshape the Immuno-Mechanical Landscape: Molecular Mechanisms and Therapeutic Strategies.International journal of biological sciences · 2026Review
- Oncolytic Newcastle-disease-virus-mediated CD47 blockade in preclinical melanoma and pancreatic cancer models.Molecular therapy. Oncology · 2025Article
- From exposure to oncogenesis: a review on the multifaceted roles of microplastics in tumor initiation and progression.Journal of translational medicine · 2025Review
- Mitochondrial metabolism and cancer therapeutic innovation.Signal transduction and targeted therapy · 2025Review
- Review
- Viral warfare: unleashing engineered oncolytic viruses to outsmart cancer's defenses.Frontiers in immunology · 2025Review
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8 authors.
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Abstract
backgroundAlthough immunotherapy can reinvigorate immune cells to clear tumors, the response rates are poor in some patients. Here, CD47 antibody-engineered oncolytic viruses (oAd-αCD47) were employed to lyse tumors and activate immunity. The oAd-αCD47 induced comprehensive remodeling of the tumor microenvironment (TME). However, whether the acidic TME affects the antitumor immunotherapeutic effects of oncolytic viruses-αCD47 has not been clarified.
methodsTo assess the impact of oAd-αCD47 treatment on the TME, we employed multicolor flow cytometry. Glucose uptake was quantified using 2NBDG, while mitochondrial content was evaluated with MitoTracker FM dye. pH imaging of tumors was performed using the pH-sensitive fluorophore SNARF-4F. Moreover, changes in the calmodulin-dependent protein kinase II (CaMKII)/cyclic AMP activates-responsive element-binding proteins (CREB) and peroxisome proliferator-activated receptor gamma coactivator-1α (PGC1α) signaling pathway were confirmed through western blotting and flow cytometry.
resultsHere, we identified sodium bicarbonate (NaBi) as the potent metabolic reprogramming agent that enhanced antitumor responses in the acidic TME. The combination of NaBi and oAd-αCD47 therapy significantly inhibited tumor growth and produced complete immune control in various tumor-bearing mouse models. Mechanistically, combination therapy mainly reduced the number of regulatory T cells and enriched the ratio of M1-type macrophages TAMs (M1.TAMs) to M2-type macrophages TAMs (M2.TAMs), while decreasing the abundance of PD-1
conclusionsTumor acidic microenvironment impairs mitochondrial energy metabolism in macrophages and T cells inducing oAd-αCD47 immunotherapeutic resistance. NaBi improves the acidity of the TME and activates the CaMKII/CREB/PGC1α mitochondrial biosynthesis signaling pathway, which reprograms the energy metabolism of macrophages and T cells in the TME, and oral NaBi enhances the antitumor effect of oAd-αCD47.
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