ArticleBiology direct2025
Boanmycin overcomes bortezomib resistance by inducing DNA damage and endoplasmic reticulum functional impairment in multiple myeloma.
Article in Biology direct, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
1 citing paper in PubMed.
- Advances in antimicrobial peptides: promising cancer treatments and vaccines.Frontiers in medicine · 2026Review
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Authors and funding
9 authors.
Funding
Abstract
backgroundMultiple myeloma (MM) is a hematological malignancy characterized by uncontrolled proliferation of plasma cells and is currently incurable. Despite advancements in therapeutic strategies, resistance to proteasome inhibitors, particularly bortezomib (BTZ), poses a substantial challenge to disease management. This study aimed to explore the efficacy of boanmycin, a novel antitumor antibiotic, in overcoming resistance to BTZ in MM.
methodsBTZ-resistant cells were generated over a period of at least 6 months by gradually increasing the concentration of BTZ. The viability of MM cell lines and patient bone marrow mononuclear cells (BMMCs) was measured via the CCK8 reagent. The protein levels of cleaved caspase 3, cleaved caspase 7, cleaved PARP, PARP, p-JNK, JNK, and γ-H2AX were analyzed through Western blot. Cellular morphology was observed via transmission electron microscopy. Colony formation ability was evaluated, and cell apoptosis and the cell cycle were detected through flow cytometry. Xenograft experiments were conducted to evaluate the growth of MM cells in vivo.
resultsOur results demonstrated that boanmycin effectively inhibited cell proliferation and colony formation, and triggered apoptosis in both BTZ-sensitive and BTZ-resistant MM cells. The combination of boanmycin with BTZ had greater inhibitory effects than either drug alone. Furthermore, boanmycin significantly suppressed MM cell growth in immunodeficient mouse xenograft models without inducing distinct toxic side effects. Notably, boanmycin markedly killed patient-derived MM cells ex vivo. Mechanistically, boanmycin not only disrupts the cell cycle and causes DNA damage but also exerts its antitumor effects by inducing endoplasmic reticulum (ER) functional impairment.
conclusionsOur findings highlight the potential of boanmycin as a promising novel therapeutic option for treating MM, particularly in patients with BTZ resistance.
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