ArticleExperimental hematology & oncology2026
Arsenic trioxide promotes a glue‑like interaction to drive STUB1-mediated NPM-ALK degradation in ALK
Article in Experimental hematology & oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The nucleophosmin-anaplastic lymphoma kinase (NPM-ALK) fusion constitutively activates ALK tyrosine kinase, driving oncogenesis in anaplastic large cell lymphoma (ALCL). While arsenic trioxide (ATO) exhibits therapeutic potential, its precise mechanism remains elusive, limiting clinical application. Here, we used a combined approach of E3 ligase library screening, ATO chemical proteomics, and NPM-ALK immunoprecipitation-mass spectrometry to reveal that ATO regulates NPM-ALK stability via the E3 ligase STUB1. Clinically, high STUB1 expression correlates with improved survival, identifying it as a candidate favorable prognostic biomarker in NPM-ALK
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