ArticleExperimental hematology & oncology2026
Single-cell profiling reveals reprogrammed hierarchy and disrupted immune-stromal ecosystem in TP53-mutated AML.
Article in Experimental hematology & oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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Who cites it
2 citing papers in PubMed.
- Article
- Functional heterogeneity of TP53 mutants in venetoclax-resistant AML: mechanisms, clinical implications, and therapeutic opportunities.Frontiers in oncology · 2026Review
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Authors and funding
23 authors.
Funding
Abstract
backgroundTP53-mutated acute myeloid leukemia (AML) represents one of the most adverse-risk subtypes of AML, yet the mechanisms underlying its resistance and relapse remain poorly defined.
methodsWe performed single-cell RNA sequencing on bone marrow samples from 30 de novo AML patients (11 TP53-mutated, 19 TP53-wild-type) and systematically analyzed leukemic, immune, and stromal compartments to delineate differentiation trajectories, transcriptional heterogeneity, and microenvironmental remodeling. We also performed in vitro assays to validate ferroptosis resistance, leukemia-T cell dysfunction, and stromal remodeling suggested by the single-cell data.
resultsTP53-mutated AML exhibited a differentiation bias toward granulocyte-monocyte and late myeloid progenitors rather than arrest at the stem cell stage, with enhanced anti-apoptotic and inflammatory programs and a transcriptionally and functionally supported ferroptosis resistance phenotype as a novel hallmark linked to poor prognosis. Functionally, CD8⁺ T cells were predominantly exhausted with an enrichment of dysfunctional subsets and a concomitant reduction of NK cells. B cells showed impaired activation with skewed plasma cell composition, and myeloid cells acquired immunosuppressive features. In the stromal compartment, mesenchymal cells lost hematopoietic and immune-supportive functions and shifted toward osteogenic programs, further reinforcing leukemic survival. We also established an integrated ecosystem score that, together with TP53 mutation burden and mono- versus multi-hit status, captured prognostic heterogeneity and enabled clinical stratification.
conclusionsThis study provides the first single-cell landscape of de novo TP53-mutated AML, highlighting its reprogrammed leukemic hierarchy and disrupted immune-stromal ecosystem, and offering mechanistic insights and potential therapeutic targets for this high-risk subtype.
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