ArticleCells2023
Intratumoral Administration of High-Concentration Nitric Oxide and Anti-mPD-1 Treatment Improves Tumor Regression Rates and Survival in CT26 Tumor-Bearing Mice.
Article in Cells, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.
- The microbiome-nitric oxide axis in cancer immunotherapy: a targeted qualitative systematic review of mechanistic and translational evidence.Frontiers in immunology · 2026Pooled it
- Expression of the NLRP12/NF-κB/iNOS axis in lung tissues across stages of non-small cell lung cancer and its mechanism in mediating immune cell regulation.Translational cancer research · 2026Article
- Gasotransmitters bridging tumor biology and immunity: from pathophysiological insights to therapeutic potential.Frontiers in immunology · 2026Review
- Enhanced cancer immunotherapy via synergistic action of NO-Donor nanoparticles (NanoScience and technology of advanced materials · 2025Article
- Ultrasound-responsive nanoparticles for nitric oxide release to inhibit the growth of breast cancer.Cancer cell international · 2024Article
- Nitric oxide-based multi-synergistic nanomedicine: an emerging therapeutic for anticancer.Journal of nanobiotechnology · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundImmune checkpoint inhibitors have transformed clinical oncology. However, their use is limited as response is observed in only ~20-50% of patients. Previously, we demonstrated that treating CT26 tumor-bearing mice with ultra-high-concentration gaseous nitric oxide (UNO) followed by tumor resection stimulated antitumor immune responses. Accordingly, UNO may improve tumor response to immune checkpoint inhibitors. Here, we investigated the ability of UNO to improve the efficacy of a programmed cell death protein-1 (PD-1) antibody in vitro and in treating CT26 tumor-bearing mice.
methodsCT26 cells were injected into the flank of Balb/c mice (
results(1) Short exposure to 25,000-100,000 parts per million (ppm) UNO in vitro resulted in significant upregulation of PD-L1 expression on CT26 cells. (2) UNO treatment in vivo consistently reduced cell viability in CT26 tumors. (3) Treatment reduced regulatory T-cell (Treg) levels in the tumor and increased levels of systemic M1 macrophages. UNO responders had increased CD8+ T-cell tumor infiltration. (4) Nine days after treatment, primary tumor growth was significantly lower in the combination arm vs. anti-mPD-1 alone (
conclusionCombining high-concentration NO and immune checkpoint inhibitors warrants further assessment especially in tumors resistant to checkpoint inhibitor therapy.
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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.