ArticleCancers2026
Payload-Free Epitope Imprinted Polymer Nanoparticles Selectively Targeting IL-13Rα2 and Inhibition of Diffuse Midline Glioma Cells.
Article in Cancers, 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
BACKGROUND/
objectivesDiffuse midline gliomas (DMGs), including diffuse intrinsic pontine glioma (DIPG), present a significant medical challenge due to their aggressive nature and poor prognosis. Widespread overexpression of the interleukin-13 receptor subunit alpha-2 (IL-13Rα2) across gliomas makes it a promising therapeutic target.
methodUsing epitope mapping through a molecular imprinting (EMMI) technique, we developed nanosized molecularly imprinted polymers (nanoMIPs) that specifically recognize different IL-13Rα2 domains.
resultsFunctional assays showed that nanoMIPs binding to the surface of IL-13Rα2 reduced glioma cell viability, while sparing non-tumor cells. Consistent with receptor-mediated interactions, these nanoMIPs were selectively accumulated onto glioma cells, a specificity validated using a reverse-epitope nanoMIP negative control (nanoMIP-1*). IL-13Rα2-specific nanoMIPs suppressed phosphorylation of ERK1/2, AKT, and STAT3, disrupting major survival pathways. Moreover, these nanoMIPs activated the pro-apoptotic caspase-3/7 pathway, confirming apoptosis induction.
conclusionsOur findings demonstrate that IL-13Rα2-specific nanoMIPs, without a pharmacological payload, exert strong anti-proliferative and pro-apoptotic effects on DMG cells. Collectively, nanoMIPs represent a robust, reproducible synthetic antibody nanoplatform for targeted therapies in cancer and other diseases characterized by cell-surface protein dysregulation.
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