ArticleCancers2025
Pharmacologic Targeting of miR29b with Bortezomib and Sorafenib to Improve Decitabine Sensitivity in Patients with Acute Myeloid Leukemia: Results from a Phase 1 Dose-Escalation Trial.
Article in Cancers, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Bortezomib synergizes with homoharringtonine in FLT3-ITD-relapsed/refractory acute myeloid leukemia by inducing FLT3-ITD protein degradation.Clinical and experimental medicine · 2026Article
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12 authors.
Funding
Abstract
backgroundDecitabine efficacy in acute myeloid leukemia (AML) may be enhanced by the pharmacologic upregulation of microRNA miR-29b, a regulator of DNA methyltransferase (DNMT) expression. Bortezomib and sorafenib have been shown preclinically to increase miR-29b levels, providing a biologically informed strategy to sensitize leukemic blasts to DNMT inhibition.
objectivesTo evaluate the safety, tolerability, biological activity, and preliminary efficacy of combining bortezomib and sorafenib followed by decitabine in patients with newly diagnosed or relapsed/refractory AML.
methodsThis phase I, dose-escalation study enrolled 15 patients (11 untreated, 4 relapsed/refractory) who received fixed-dose bortezomib and sorafenib across three dose levels prior to decitabine. Dose escalation was guided by dose-limiting toxicities (DLTs) and an increase in miR-29b expression.
resultsThe regimen was generally well tolerated with the most frequent grade ≥3 adverse events of hypertension and febrile neutropenia. At the highest dose level, a ≥2-fold increase in miR-29b expression was observed in two of the six evaluable patients. The overall response rate was 33.3%, with clinical responses observed in both newly diagnosed and relapsed/refractory patients. However, changes in miR-29b expression did not consistently correlate with clinical response.
conclusionsSequential treatment with bortezomib and sorafenib followed by decitabine is feasible and demonstrates acceptable safety in AML. Although the biologic modulation of miR-29b was variable, this trial provides a proof of concept for pharmacodynamic-guided dose finding in epigenetic therapy combinations.
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