Abstract
Minimal information is available on the oral bioavailability and liver-targeting properties of sorafenib solid lipid nanoparticles (SRF-SLNs) in rats. In this study, SRF-SLNs were prepared via the combined methods of high-speed shearing and ultrasonic treatment. SRF-SLN formulations were also optimized. Particle size, zeta potential, entrapment efficiency (EE), and drug loading (DL) were used as indices for the evaluation of the as-prepared SRF-SLNs. SRF concentration was determined by the high-performance liquid chromatography method. Results showed that the average EE and DL of SRF-SLNs were 89.87 and 5.39%. The average particle size, polydispersity index, and zeta potential of SRF-SLNs were 77.16 nm, 0.28, and − 18.1 mV, respectively. The results of the stability test showed that SRF-SLNs remained stable for more than 1 month at room temperature. After oral administration to rats (7.5 mg/kg), the liver-targeting evaluation results showed that the average drug selectivity index value of SRF-SLNs was 2.20 times higher, than that of the SRF-suspension. Furthermore, the area under the concentration–time curve of SRF increased by 66.7% in the SRF-SLN group comparing with that in the SRF-suspension. Our results suggested that SLNs were a promising approach for the oral delivery of SRF.
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Acknowledgements
The work was supported by a grant from the National Natural Science Foundation of China (No. 81560631), Distinguished Young Scholars Foundation of Jiangxi Province (No. 20162BCB23022) and the Innovation Fund Designated for Graduate Students of Nanchang University (No. cx2016296 and No. cx2016297).
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The animal study was conducted in accordance with the Guidelines for Animal Experiments and approved by the Animal Ethics Committee of Nanchang University.
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Wang, H., Wang, H., Yang, W. et al. Improved Oral Bioavailability and Liver Targeting of Sorafenib Solid Lipid Nanoparticles in Rats. AAPS PharmSciTech 19, 761–768 (2018). https://doi.org/10.1208/s12249-017-0901-3
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DOI: https://doi.org/10.1208/s12249-017-0901-3