Nanotechnology-based photodynamic therapy for neovascular disease using a supramolecular nanocarrier loaded with a dendritic photosensitizer.

Ideta, Ryuichi; Tasaka, Fumitaka; Jang, Woo-Dong; Nishiyama, Nobuhiro; Zhang, Guo-Dong; Harada, Atsushi; Yanagi, Yasuo; Tamaki, Yasuhiro et al. · Nano Lett · 2005

basic_science · Level V

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Abstract

Photodynamic therapy (PDT) for exudative age-related macular degeneration (AMD) was evaluated using a supramolecular nanomedical device, that is, a novel dendritic photosensitizer (DP) encapsulated by a polymeric micelle formulation. The characteristic dendritic structure of the DP prevents aggregation of its core sensitizer, thereby inducing a highly effective photochemical reaction. With its highly selective accumulation on choroidal neovascularization (CNV) lesions, this treatment resulted in a remarkably efficacious CNV occlusion with minimal unfavorable phototoxicity.

Medical subject headings