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Application of apolipoprotein E-modified liposomal nanoparticles as a carrier for delivering DNA and nucleic acid in the brain

Authors Tamaru M, Akita H, Nakatani T, Kajimoto K, Sato Y, Hatakeyama H, Harashima H

Received 2 April 2014

Accepted for publication 20 June 2014

Published 8 September 2014 Volume 2014:9(1) Pages 4267—4276


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 4

Mina Tamaru,* Hidetaka Akita,* Taichi Nakatani, Kazuaki Kajimoto, Yusuke Sato, Hiroto Hatakeyama, Hideyoshi Harashima

Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan

*These authors contributed equally to this work

Abstract: An innovative drug delivery technology is urgently needed to satisfy unmet medical needs in treating various brain disorders. As a fundamental carrier for plasmid DNA or nucleic acids, we developed a liposomal nanoparticle (multifunctional envelope-type nano device [MEND]) containing a proton-ionizable amino lipid (YSK-MEND). Here we report on the impact of apolipoprotein E (ApoE) modification on the function of YSK-MEND in terms of targeting brain cells. The cellular uptake and function of YSK-MEND encapsulating short interference RNA or plasmid DNA were significantly improved as a result of ApoE modification in mouse neuron-derived cell lines (Neuro-2a and CAD). Intracerebroventricular administration of ApoE-modified YSK-MEND (ApoE/YSK-MEND) encapsulating plasmid DNA also resulted in higher transgene expression in comparison with YSK-MEND that was not modified with ApoE. Moreover, observation of fluorescence-labeled ApoE/YSK-MEND and expression of mCherry (fluorescence protein) derived from plasmid DNA indicated that this carrier might be useful for delivering and conferring transgene expression in neural stem cells and/or neural progenitor cells. Thus, this system may be a useful tool for the treatment of neurodegenerative disease.

Keywords: brain, DNA, oligonucleotide, delivery, nanoparticles

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