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December 8, 2025BloodOpen Access

Beyond clonal hematopoiesis of indeterminate potential: Understanding how the trisomy 21 context promotes TET2 mutations

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Authors

NPNeetha Paul-EduthanMDMarco De DominiciKSKelly D. Sullivan

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Overview

Observational analysis uncovers disrupted DNA repair in Down syndrome, indicating increased leukemia risk and novel therapeutic insights.

Key Points

  • Greater TET2 mutation prevalence is observed in individuals with Down syndrome compared to controls, suggesting altered clonal expansion dynamics.
  • Analysis covers 37 genes implicated in clonal hematopoiesis, including notable differences in DNMT3A mutation rates.
  • Utilization of DuplexSeq enables rare mutation detection with a sensitivity down to 0.01% VAF, uncovering critical pathways.
  • Future work will explore epigenetic changes linked to TET2 loss, with relevance to sickle cell disease and Fanconi anemia.

Cite This Study

Paul-Eduthan et al. (2025) studied this question.

synapsesocial.com/papers/69362f604fa91c937236dd52https://doi.org/10.1182/blood-2025-1397
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Also Consider

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

  1. 1Single-cell multiomic profiling of gene mutation, chromatin accessibility, and gene expression in TET2-mutant clonal hematopoiesis2025
  2. 2Chromodomain helicase DNA binding protein CHD2 interacts with TET2 and regulates lineage defining transcription in hematopoietic stem and progenitor cells2025
  3. 3Human TET2-mutant clonal hematopoiesis expansion is driven by distinct inflammatory signaling responses in stem cells versus myeloid progeny.2025 · 8 citations
  4. 4Novel approaches to identify cellular vulnerabilities in TET2-dependent MDS2025
  5. 5Clonal haematopoiesis of indeterminate potential and mortality in coronary artery disease2025 · 20 citations