ReviewFrontiers in oncology2023
The immunomodulatory role of IDO1-Kynurenine-NAD
Review in Frontiers in oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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.
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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.
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Who cites it
19 citing papers in PubMed, 12 citations in OpenAlex.
- Decoding neuro-tumor interactions in pancreatic cancer: mechanisms, immunosuppressive networks and therapeutic opportunities.Molecular biomedicine · 2026Review
- Vitexin antagonizes the kynurenine pathway via AhR inhibition to reprogram tumor-associated macrophages and enhance antitumor immunity in lung adenocarcinoma.Molecular and cellular biochemistry · 2026Article
- MO-IPS suppresses acute myeloid leukemia through metabolic reprogramming and synergizes with anti-PD-1 immunotherapy.Functional & integrative genomics · 2026Article
- Pancreatic ductal adenocarcinoma: integrating molecular insights for targeted interventions.Signal transduction and targeted therapy · 2026Review
- Indoleamine 2,3-dioxygenase 1 inhibition reverses cancer-associated fibroblast-mediated immunosuppression in high-grade serous ovarian cancer.FEBS open bio · 2026Article
- PRMT3 in cancer: arginine methylation as a driver of tumor metabolism, immune evasion, and therapeutic resistance.Frontiers in immunology · 2026Review
- IL-6 as a central driver of immune evasion in PDAC: from IDO-mediated tolerance to multi-pathway immunosuppression.Frontiers in immunology · 2026Review
- Integrated multi-omics analysis of metabolomics and proteomics uncovers dysregulated amino acid metabolism in HCC metastasis.Frontiers in immunology · 2026Article
- KRAS-driven cytokine-metabolic crosstalk shapes immune exclusion in pancreatic ductal adenocarcinoma.Frontiers in genetics · 2026Review
- Small molecules targeting the PD-1/PD-L1 axis for cancer immunotherapy.Theranostics · 2026Review
- Elevated tumor NOS2/COX2 promotes immunosuppressive phenotypes associated with poor survival in ER- breast cancer.JCI insight · 2025Article
- Impact of gastrointestinal dysbiosis on tryptophan metabolism and neurological cancer progression.Medical oncology (Northwood, London, England) · 2025Review
- Perineural invasion and the "cold" tumor microenvironment in pancreatic cancer: mechanisms of crosstalk and therapeutic opportunities.Frontiers in immunology · 2025Review
- Reprogramming the tumor microenvironment to overcome immunotherapy resistance in pancreatic cancer.Frontiers in immunology · 2025Review
- USP18 promote tumor immune evasion in pancreatic cancer through enhancing autolysosome-mediated degradation of MHC-I.American journal of cancer research · 2025Article
- The role of nicotinamide adenine dinucleotide salvage enzymes in cardioprotection.Kardiochirurgia i torakochirurgia polska = Polish journal of cardio-thoracic surgery · 2024Review
- Spatial analysis of NOS2 and COX2 interaction with T-effector cells reveals immunosuppressive landscapes associated with poor outcome in ER- breast cancer patients.bioRxiv : the preprint server for biology · 2023Article
- Association betweenCancers · 2023Article
- Review
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the most common exocrine tumor of the pancreas characterized by late diagnosis, adverse overall 5-year survival, a higher propensity for metastatic disease, and lack of efficacy of systemic therapy options. These adverse outcomes can be partly attributed to complex tumor microenvironment (TME). Over the past decade, immunotherapy has revolutionized the management of certain cancers; thus far, the immunologically 'non-inflamed' tumor microenvironment in PDACs has proven to be challenging. Indolamine 2,3-dioxygenase 1 (IDO1) is the rate-limiting enzyme in the catabolic pathway of L-Tryptophan, an essential amino acid, that gives rise to the immunosuppressive metabolite Kynurenine. IDO1, Indolamine 2,3-dioxygenase 2 (IDO2), and Tryptophan 2,3-dioxygenase (TDO) are the key enzymes in the tryptophan catabolic pathway but we focus on the role of the predominant enzyme form IDO1 in this review. Nicotinamide phosphoribosyl transferase (iNAMPT) regulates the intracellular concentration of NAD and is upregulated in the tumor. In light of the potential role of IDO1 as a driver of hostile TME in PDAC and NAD
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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.