Furthermore, treatment with sunvozertinib did not change protein expression or subcellular localization of ABCB1. Altogether, these data demonstrate that sunvozertinib, when combined with other conventional chemotherapeutic agents, can overcome MDR and improve therapeutic effect.
23 hours ago
Journal
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EGFR (Epidermal growth factor receptor) • ABCB1 (ATP Binding Cassette Subfamily B Member 1) • ABCG2 (ATP Binding Cassette Subfamily G Member 2) • ABCC1 (ATP Binding Cassette Subfamily C Member 1)
Reference inhibitors (osimertinib-EGFR, ibrutinib-BTK, THZ1-CDK7, and THZ531-CDK12) reproduced the expected geometries and served as internal controls. Although no quantitative affinity was inferred, the consistent geometric feasibility supports their potential as structural templates for covalent-binding natural scaffolds. These results provide a qualitative, structure-based rationale for further chemoproteomic and enzymatic validation of NP-derived or hybrid compounds as potential leads in cancer therapy, expanding covalent chemical space beyond existing synthetic scaffolds.
Moreover, upon ibrutinib treatment, REL DNA-binding activity decreased in 2pWT CLL cells but remained sustained in 2p+ CLL cells following BCR stimulation, suggesting that persistent NF-κB activation contributes to resistance...Altogether, our study identifies REL overexpression as a novel 2p+-driven mechanism of BTKi resistance in CLL, complementing the well described BTK and PLCG2 mutations. These findings support the clinical relevance of detecting 2p gain to guide treatment strategies and improve outcomes in CLL.
3 days ago
Journal
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PLCG2 (Phospholipase C Gamma 2) • REL (REL Proto-Oncogene)
Pirtobrutinib demonstrated superiority over BendaR in IRC-assessed PFS in treatment-naïve CLL/SLL. OS trends favored pirtobrutinib despite the study design allowing for crossover. Pirtobrutinib was well tolerated, consistent with its known safety profile, and more favorable than BendaR.