ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2023
Tryptophan Metabolism Acts as a New Anti-Ferroptotic Pathway to Mediate Tumor Growth.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
96 citing papers in PubMed, 139 citations in OpenAlex.
- Tryptophan metabolism in tumor microenvironment and therapeutic implications.Journal of advanced research · 2026Review
- The role of gut microbiota in thyroid cancer: from pathogenesis to diagnosis and treatment.Journal of endocrinological investigation · 2026Review
- Tryptophan metabolism in colorectal cancer: From mechanistic insights to novel therapeutic strategies.Clinical and translational medicine · 2026Review
- TP53 drives neuronal ferroptosis by promoting KLHL4-mediated SLC7A11 ubiquitination after spinal cord injury.Neural regeneration research · 2026Article
- SLC22A3 regulates ferroptosis in the mesenchymal subtype of triple-negative breast cancer by modulating histone H3K4 serotonylation.Cell death & disease · 2026Article
- Postbiotic Nagqu4580 Attenuates Ulcerative Colitis and Suppresses Ferroptosis in Association with the Microbiota-Tryptophan-AhR/Nrf2 Axis.Nutrients · 2026Article
- Emerging roles of ferroptosis in modulating the immune landscape of glial tumours.Nature cell biology · 2026Review
- Neurotransmitters in cancer: how receptor signaling and posttranslational modifications modulate tumor progression and offer new therapeutic targets.Cell communication and signaling : CCS · 2026Review
- Metabolic oxidoreductases: central regulators of the epigenetic landscapes in stemness.Experimental & molecular medicine · 2026Review
- Metabolic Alterations in Macrophage Subtypes Propel Immune and Stromal Remodeling in Neurofibroma's Malignant Progression.MedComm · 2026Article
- Peritumoural adipose tissue promotes ferroptosis resistance by 3-hydroxykynurenine-mediated suppression of ferritinophagy.Nature cell biology · 2026Article
- Microbiota in pancreatic ductal adenocarcinoma progression and therapy: The hidden players.Chinese medical journal · 2026Review
- The prognostic impact of tryptophan on non-small cell lung cancer survival: insights from plasma essential amino acids.Nutrition journal · 2026Article
- IL4I1⁺ Macrophages and TDO2⁺ Myofibroblasts Drive AhR-Mediated Immunosuppression and Ferroptosis Resistance in Solid Predominant Lung Adenocarcinoma.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Shaping death: how the microbiome regulates tumour cell demise and therapy response.Cancer metastasis reviews · 2026Review
- Cell adhesion molecules as emerging regulators of ferroptosis: mechanisms and therapeutic opportunities in cancer.Apoptosis : an international journal on programmed cell death · 2026Review
- Amino Acid Metabolism-Related Gene Kynureninase (KYNU) as a Prognostic Predictor and Regulator of Diffuse Large B-Cell Lymphoma.Biochemical genetics · 2026Article
- Evidence Based on Sleep Disorder Exacerbating Postoperative Pain via Kynureninase.Drug design, development and therapy · 2026Article
- Identification and characterization of tryptophan metabolism-related genes in carotid artery plaques.PloS one · 2026Article
- An isoflavone-enriched diet alleviates Parkinson's disease in mice by inhibiting ferroptosis through gut microbiota-mediated serotonin production.Frontiers in immunology · 2026Article
36 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
16 authors at 7 institutions in 2 countries.
Funding
Abstract
Emerging evidence reveals that amino acid metabolism plays an important role in ferroptotic cell death. The conversion of methionine to cysteine is well known to protect tumour cells from ferroptosis upon cysteine starvation through transamination. However, whether amino acids-produced metabolites participate in ferroptosis independent of the cysteine pathway is largely unknown. Here, the authors show that the tryptophan metabolites serotonin (5-HT) and 3-hydroxyanthranilic acid (3-HA) remarkably facilitate tumour cells to escape from ferroptosis distinct from cysteine-mediated ferroptosis inhibition. Mechanistically, both 5-HT and 3-HA act as potent radical trapping antioxidants (RTA) to eliminate lipid peroxidation, thereby inhibiting ferroptotic cell death. Monoamine oxidase A (MAOA) markedly abrogates the protective effect of 5-HT via degrading 5-HT. Deficiency of MAOA renders cancer cells resistant to ferroptosis upon 5-HT treatment. Kynureninase (KYNU), which is essential for 3-HA production, confers cells resistant to ferroptotic cell death, whereas 3-hydroxyanthranilate 3,4-dioxygenase (HAAO) significantly blocks 3-HA mediated ferroptosis inhibition by consuming 3-HA. In addition, the expression level of HAAO is positively correlated with lipid peroxidation and clinical outcome. Together, the findings demonstrate that tryptophan metabolism works as a new anti-ferroptotic pathway to promote tumour growth, and targeting this pathway will be a promising therapeutic approach for cancer treatment.
Indexed as
Identifiers
What OpenQuestion holds
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.