标题：Intranasal delivery of rotigotine to the brain with lactoferrin-modified PEG-PLGA nanoparticles for Parkinson's disease treatment
作者：Bi, Chenchen; Wang, Aiping; Chu, Yongchao; Liu, Sha; Mu, Hongjie; Liu, Wanhui; Wu, Zimei; Sun, Kaoxiang; Li, Youxin
作者机构：[Bi, Chenchen; Wang, Aiping; Chu, Yongchao; Liu, Sha; Mu, Hongjie; Liu, Wanhui; Wu, Zimei; Sun, Kaoxiang; Li, Youxin] Yantai Univ, Shandong Univ,Minis 更多
通讯作者：Sun, KX;Li, YX
通讯作者地址：[Sun, KX]Yantai Univ, Sch Pharm, 30 Qingquan Rd, Yantai 264005, Shandong, Peoples R China;[Li, YX]Shandong Luye Pharmaceut Co Ltd, 9 Baoyuan Rd, Yanta 更多
来源：INTERNATIONAL JOURNAL OF NANOMEDICINE
关键词：rotigotine; lactoferrin-modified PEG-PLGA nanoparticles; brain; targeting; intranasal delivery; Parkinson's disease
摘要：Sustainable and safe delivery of brain-targeted drugs is highly important for successful therapy in Parkinson's disease (PD). This study was designed to formulate biodegradable poly(ethylene glycol)-poly(lactic-co-glycolic acid) (PEG-PLGA) nanoparticles (NPs), which were surface-modified with lactoferrin (Lf), for efficient intranasal delivery of rotigotine to the brain for the treatment of PD. Rotigotine NPs were prepared by nanoprecipitation, and the effect of various independent process variables on the resulting properties of NPs was investigated by a Box-Behnken experimental design. The physicochemical and pharmaceutical properties of the NPs and Lf-NPs were characterized, and the release kinetics suggested that both NPs and Lf-NPs provided continuous, slow release of rotigotine for 48h. Neither rotigotine NPs nor Lf-NPs reduced the viability of 16HBE and SH-SY5Y cells; in contrast, free rotigotine was cytotoxic. Qualitative and quantitative cellular uptake studies demonstrated that accumulation of Lf-NPs was greater than that of NPs in 16HBE and SH-SY5Y cells. Following intranasal administration, brain delivery of rotigotine was much more effective with Lf-NPs than with NPs. The brain distribution of rotigotine was heterogeneous, with a higher concentration in the striatum, the primary region affected in PD. This strongly suggested that Lf-NPs enable the targeted delivery of rotigotine for the treatment of PD. Taken together, these results demonstrated that Lf-NPs have potential as a carrier for nose-to-brain delivery of rotigotine for the treatment of PD.