Dual targeting nanoparticles for epilepsy therapy

Abstract

For epilepsy therapy, one-third of the patients worldwide are resistant to antiepileptic drugs mainly due to the existence of the blood-brain barrier (BBB) that prevents the drugs from reaching the epileptic lesions. Here, we design a double targeting nanoparticle carrying lamotrigine (LTG) to cross the BBB and further concentrate at the neurons. We prepare the nanoparticles on a microfluidic chip by encapsulating LTG in poly(lactic-co-glycolic acid) (PLGA) to form a core (PL) and capping the core with a shell of lipids conjugated with the D-T7 peptide (targeting the BBB) and Tet1 peptide (targeting the neuron) to form D-T7/Tet1-lipids@PL nanoparticles (NPs). In vitro and in vivo experiments show that D-T7/Tet1-lipids@PL NPs have excellent neuron targeting, antiepileptic, and protecting effects. Our approach provides a new strategy for improving the therapeutic efficacy of existing antiepileptic drugs.