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December 8, 2025BloodOpen Access

Transcriptional and splicing dysregulation by U2AF1 mutations contribute to inflammatory and migratory alterations in MDS

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Authors

ATAkihiro TomitaHKHaruhiko Koseki

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Overview

Transcriptional changes from U2AF1 mutations impair inflammation and cell migration in MDS, promoting leukopenia and anemia.

Key Points

  • This research investigates the role of U2AF1 mutations in myelodysplastic syndromes (MDS) and their effect on hematopoiesis.
  • Conditional knock-in mouse model expressing U2af1 S34F allele
  • Single-cell RNA sequencing of hematopoietic stem/progenitor cells
  • Bulk RNA-seq analysis of KSL cells
  • U2AF1 mutant mice exhibited macrocytic anemia and leukopenia.
  • Increased splicing abnormalities in genes related to myeloid malignancy.
  • Inhibition of migration and inflammatory pathways in specific progenitor populations.

Cite This Study

Tomita et al. (2025) studied this question.

synapsesocial.com/papers/693624d74fa91c937236d157https://doi.org/10.1182/blood-2025-5018
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1An actionable DNA repair defect in myeloid malignancies with U2AF1 S34 mutations2025
  2. 2Genomic landscape, clinical correlates and prognostic implications of U2AF1 mutation subtypes in myelodysplastic neoplasms2026
  3. 3Examining the role of U2AF1 and TET2 mutations in a myeloid malignancy mouse model2025
  4. 4SF3B1 mutations K700E, K666N, and R625H: Gene expression and aberrant splicing consequences2025
  5. 5Mis-splicing of Mdm4 activates TRP53 and impairs HSPC growth in a mouse model of myelodysplastic syndromes2025