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Protective effects on myocardial infarction model: delivery of schisandrin B using matrix metalloproteinase-sensitive peptide-modified, PEGylated lipid nanoparticles

Authors Shao M, Yang W, Han G

Received 10 May 2017

Accepted for publication 8 August 2017

Published 26 September 2017 Volume 2017:12 Pages 7121—7130


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 4

Editor who approved publication: Dr Linlin Sun

Mingfeng Shao,1 Wenfang Yang,2 Guangying Han1

1Department of Cardiology, Linyi People’s Hospital, Linyi, Shandong, People’s Republic of China; 2Department of Internal Medicine, Linyi Hot Spring Hospital of Shandong Coal Mine, Linyi, Shandong, People’s Republic of China

Purpose: Schisandrin B (Sch B) is clinically applied for the treatment of hepatitis and ischemic disease. However, its clinical efficacy is limited due to the poor solubility and low bioavailability. This study aimed to develop matrix metalloproteinase (MMP)-sensitive peptide-modified, polyethylene glycol (PEG)-modified (PEGylated) solid lipid nanoparticles (SLNs) for loading Sch B (MMP-Sch B SLNs), and to evaluate the therapeutic effect in the myocardial infarction model.
Methods: PEG lipid and MMP-targeting peptide conjugate were synthesized. MMP-Sch B SLNs were prepared by solvent displacement technique. The physicochemical properties and pharmacokinetics of SLNs were investigated. In vivo effects on infarct size was evaluated in rats.
Results: The successful synthesis of lipid-peptide conjugate was confirmed. MMP-Sch B SLNs had a particle size of 130 nm, a zeta potential of 18.3 mV, and a sustained-release behavior. Higher heart drug concentration and longer blood circulation times were achieved by Sch B loaded SLNs than the drug solution according to the pharmacokinetic and biodistribution results. The best therapeutic efficacy was exhibited by MMP-Sch B SLNs by reducing the infarction size to the greatest extent.
Conclusion: The modified SLNs may be a good choice for delivery of Sch B for the treatment of myocardial infarction.

Keywords: cardiovascular diseases, CVDs, schisandrin B, matrix metalloproteinase, lipid nanoparticles

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