ArticleNature medicine2015
Negative feedback-defective PRPS1 mutants drive thiopurine resistance in relapsed childhood ALL.
Article in Nature medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers, 2 of them syntheses that pooled it.
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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
105 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Association ofHaematologica · 2024Pooled it
- Pooled it
- Integrated analysis of relapsed B-cell precursor Acute Lymphoblastic Leukemia identifies subtype-specific cytokine and metabolic signatures.Scientific reports · 2019Trial
- Personalized Therapy with Mercaptopurine in Acute Lymphoblastic Leukemia: Current Advances and Challenges.Current treatment options in oncology · 2026Review
- The molecular basis of ADP-ribose pyrophosphorylation by a phage PRPS-like enzyme in NAD+ reconstitution.Nucleic acids research · 2026Article
- Dynamic control of nucleotide metabolism in physiology and disease.Nature cell biology · 2026Review
- Uridine-sensitized screening identifies demethoxy-coenzyme Q and NUDT5 as regulators of nucleotide synthesis.Nature metabolism · 2025Article
- The genomic landscape of relapsed infant and childhood KMT2A-rearranged acute leukemia.Nature communications · 2025Article
- Treatment-related mutagenic processes in acute lymphoblastic leukemia.Haematologica · 2025Review
- The NUDIX hydrolase NUDT5 influences purine nucleotide metabolism and thiopurine pharmacology.The Journal of clinical investigation · 2025Article
- PRPS2 enhances RNA mNature communications · 2025Article
- Utility of the Base Editing System for Introducing Drug-Resistant Gene Mutations Into Human Leukemia Cellular Models.Cureus · 2025Article
- Article
- SJPedPanel: A Pan-Cancer Gene Panel for Childhood Malignancies to Enhance Cancer Monitoring and Early Detection.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Article
- Histidine re-sensitizes pediatric acute lymphoblastic leukemia to 6-mercaptopurine through tetrahydrofolate consumption and SIRT5-mediated desuccinylation.Cell death & disease · 2024Article
- Metabolic Hallmarks for Purine Nucleotide Biosynthesis in Small Cell Lung Carcinoma.Molecular cancer research : MCR · 2024Article
- Hypoxanthine in the microenvironment can enable thiopurine resistance in acute lymphoblastic leukemia.Frontiers in oncology · 2024Article
- Direct stimulation of de novo nucleotide synthesis by O-GlcNAcylation.Nature chemical biology · 2024Article
- Review
- Chromatin accessibility landscape of relapsed pediatric B-lineage acute lymphoblastic leukemia.Nature communications · 2023Article
45 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
31 authors.
Funding
Abstract
Relapse is the leading cause of mortality in children with acute lymphoblastic leukemia (ALL). Among chemotherapeutics, thiopurines are key drugs in ALL combination therapy. Using whole-exome sequencing, we identified relapse-specific mutations in the phosphoribosyl pyrophosphate synthetase 1 gene (PRPS1), which encodes a rate-limiting purine biosynthesis enzyme, in 24/358 (6.7%) relapsed childhood B cell ALL (B-ALL) cases. All individuals who harbored PRPS1 mutations relapsed early during treatment, and mutated ALL clones expanded exponentially before clinical relapse. Our functional analyses of PRPS1 mutants uncovered a new chemotherapy-resistance mechanism involving reduced feedback inhibition of de novo purine biosynthesis and competitive inhibition of thiopurine activation. Notably, the de novo purine synthesis inhibitor lometrexol effectively abrogated PRPS1 mutant-driven drug resistance. These results highlight the importance of constitutive activation of the de novo purine synthesis pathway in thiopurine resistance, and they offer therapeutic strategies for the treatment of relapsed and thiopurine-resistant ALL.
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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.