期刊
JOURNAL OF BIOMEDICAL NANOTECHNOLOGY
卷 15, 期 1, 页码 127-137出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jbn.2019.2660
关键词
Hyaluronic Acid; Gadolinium; Iron Oxide Nanoparticle; MR; Atherosclerosis
资金
- National Natural Science Foundation of China [81301316, 31200676]
- China Postdoctoral Science Foundation [2013M540425, 2014T70487, 2015M571705]
- Natural Science Foundation of Jiangsu Province [BK20161317]
- key talents of young medicine in Jiangsu Province [QNRC2016444]
- 333 high-level talents project of Jiangsu Province [BRA2014173, BRA2017145]
- Six talent peaks project in Jiangsu Province [WSN-038, WSN-281]
- Social development project of Zhenjiang City [SH2015078]
Magnetic resonance imaging (MRI) contrast agents (CTs) with both positive (T-1) and negative (T-2) contrast abilities have attracted considerable interests due to their complementary diagnostic information for more precise diagnosis. In this study, gadolinium-doped oxide nanoparticles functionalized by hyaluronic acid (HA-GdIO NPs) were synthesized for atherosclerosis-targeting T-1-T-2 dual-model MR imaging. The results showed that the HA-GdIO NPs exhibited high magnetic susceptibility and good biocompatibility. After being coated with HA, the HA-GdIO NPs specifically accumulated in the atherosclerosis plaques through targeting CD44-overpression macrophages which played a central role in development of atherosclerotic plaques. Furthermore, the HA-GdIO NPs can provide enhanced T-1 and T-2 dual phase contrast effects in vitro and in vivo, particularly in the vascular regions of mice. This work may provide a promising idea to construct MRI contrast agents with both effective and targeted contrast abilities for biomedical applications.
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