A logic-gated DNA nanocascade for dual-RNA imaging in a triple-negative breast cancer cell model.
Triple-negative breast cancer (TNBC) is highly heterogeneous, and accurate molecular subtyping remains challenging because single biomarkers often lack sufficient specificity. Here, we developed an AND logic-gated DNA nanocascade for dual-RNA imaging of miR-21 and PD-L1 mRNA in TNBC cells. The system integrates a miR-2...