This research engineers DNA-modified exosomes to deliver drugs precisely to cancer cells while avoiding healthy tissue. By disguising natural cell-targeting signals and adding programmable DNA targeting molecules, the platform could reduce treatment side effects and provide a modular delivery system adaptable to many cancers and other diseases.

Presbyopia, the age-related loss of near vision, occurs when the eye’s crystalline lens stiffens. A known lens-softening drug, Bistatin, affects too many eye structures to be safe. This research creates a targeted antibody–drug conjugate that delivers Bistatin only to the lens, restoring flexibility and offering a potential non-surgical treatment.