Liposome-based delivery of DNA aptamers to inhibit erythromycin methyltransferase-mediated antibiotic resistance.

Resistance to macrolides, lincosamides, and the streptogramin B class of antibiotics is caused by the methylation activity of erythromycin methyltransferases. Here, we encapsulated DNA aptamers inhibiting Erm into specifically designed liposomes to enhance stability, uptake, and delivery properties. This delivery system restores erythromycin sensitivity in resistant Staphylococcus aureus, offering a promising therapeutic platform against MDR bacteria.