ArticleInternational journal of molecular sciences2026
Recognition of ErbB Family Dimers by the EGF-like Domain of NRG1alpha and Beta: Implications for Ligand-Based CAR Therapy.
Article in International journal of molecular sciences, 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
HER-positive cancers comprise a heterogeneous group of malignancies driven by dysregulated activation of the human epidermal growth factor receptor (HER/ERBB) family. While chimeric antigen receptor (CAR) T-cell therapies targeting HER2 have demonstrated potent anti-tumor capabilities, their clinical translation remains hampered by safety hurdles and antigen escape. We developed a modular "Targeted Chimeric Artificial Reporter" (TcAR) system using the natural epidermal growth factor (EGF)-like binding domains of neuregulin-1 (NRG1) isoforms to decode complex HER dimerization profiles. Leveraging the superior targeting plasticity of the β-isoform, we engineered NRG1β-based CAR-T and CAR-natural killer (NK) cells. Our study demonstrates that NRG1β-directed therapy overcomes therapeutic antigen escape in HER2-depleted models and exerts potent anti-tumor activity within complex three-dimensional (3D) tissue microenvironments ex vivo, exhibiting a significantly safer, muted inflammatory profile compared to clinical standards.
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