Decreased TXNRD1 is associated with resistance to tagraxofusp in blastic plasmacytoid dendritic cell neoplasms, as seen in phase II.

LeukemiaJul 6, 2026 (epub)
Clinical ResearchOncology (Medical)Open access

Hannah C Beird, Sankaranarayanan Kannan, Jingjing Liu et al.

✦ AI-curated · Sources linked

In 30 seconds

This phase II clinical trial investigated the relationship between TXNRD1 levels and response to tagraxofusp in 12 patients with blastic plasmacytoid dendritic cell neoplasm (BPDCN). The study found that lower TXNRD1 levels in residual tumor cells were associated with reduced efficacy of tagraxofusp, indicating a potential biomarker for treatment resistance.

Key findings

  • Residual tumor cells showed decreased TXNRD1 levels, correlating with reduced tagraxofusp efficacy.
  • Responders had wild-type or missense TET2 mutations, while non-responders had truncating TET2 mutations.
  • TXNRD1 inhibition led to increased viability of CAL-1 BPDCN cells post-tagraxofusp treatment.

Why it matters

Understanding the molecular mechanisms underlying resistance to tagraxofusp can help identify patients who may benefit from alternative therapies or combination strategies, ultimately improving treatment outcomes in BPDCN.

Source

PubMed · PMID 42410207Free full text on PubMed Central

Published in Leukemia. This summary was written by xxcode from the publication's abstract and metadata. It is not peer reviewed and is not a substitute for the original article. For clinical decisions, review the original publication.

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