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Mount Sinai researchers created SMRTS, an mRNA system that targets cancer cells using cancer-specific microRNAs, boosting therapy accuracy and effectiveness in mice.
Researchers at Mount Sinai have developed SMRTS, an mRNA system that selectively activates therapies in cancer cells by using cancer-specific microRNAs to control gene expression.
Unlike traditional delivery methods, SMRTS embeds targeting logic directly into the mRNA, with one component producing an enzyme that destroys the therapeutic mRNA unless blocked by cancer microRNAs.
In mouse models, the system increased tumor-specific gene expression up to 141-fold and reduced off-target effects by over 380-fold, suppressing tumors by 45% and up to 93% when combined with immunotherapy.
The approach, adaptable to various diseases, could expand mRNA therapies beyond vaccines into precision treatments for cancer, inflammation, and metabolic disorders.
Los investigadores de Mount Sinai crearon SMRTS, un sistema de ARNm que se dirige a las células cancerosas utilizando microARN específicos del cáncer, aumentando la precisión y eficacia del tratamiento en ratones.