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Gout management using uricase and sodium citrate hollow mesoporous nanomotors
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Journal Article
Gout management using uricase and sodium citrate hollow mesoporous nanomotors
2025
Overview
Uricase (UOx)-based gout treatments are generally limited due in part to the accumulation of H
2
O
2
in an arthrosis environment characterized by a sluggish metabolism. Here we develop a self-cascade nanomotor with high efficiency toward simultaneous uric acid (UA) degradation and H
2
O
2
elimination on the basis of UOx and sodium citrate loading in amine functionalized hollow mesoporous silica nanoparticles (AHMSNs). Due to the inherent asymmetry of AHMSNs, the developed nanomotors can be actuated by ionic diffusiophoresis induced by the enzymatic UA degradation, thus enlarging the diffusion range within the joint cavity. H
2
O
2
generated during UA decomposition can be simultaneously eliminated by the loaded sodium citrate, resulting in a considerable improvement in mammalian cell viability. In vivo studies display powerful therapeutic effect in gouty models using this self-cascade nanomotor system. These results present the potential of nanomotors as active therapeutic agents for gout, providing a perspective on the application of enzyme-driven micro/nanomotors.
Uricase-based gout treatments are generally limited due in part to the accumulation of H
2
O
2
in an arthrosis microenvironment. Here the authors develop a nanomotor-based strategy that simultaneously degrades uric acid and eliminate H
2
O
2
for efficient gouty therapy.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
