科研探索

科研探索 Research

  • 标题: VHPKQHR peptide modified magnetic mesoporous nanoparticles for MRI detection of atherosclerosis lesions
    发表期刊: Artificial Cells, Nanomedicine, and Biotechnology 2019, VOL. 47, NO. 1, 2440–2448
    作者: Wan Xu, Shuihua Zhang, Quan Zhou & Wenli Chen
    摘要:
    Mortality attributable to atherosclerosis can be reduced significantly with timely diagnosis and treatment. It is meaningful to find a proper way to diagnose and prevent the progression of atherosclerosis. Vascular cell adhesion molecule-1 (VCAM-1) expressed by endothelial cells is a prominent marker of atherosclerotic plaques. There are a number of researches on VCAM-1 based probes for targeted imaging, but rarely on a system with both targeting and drug delivery. Here, we report a novel magnetic mesoporous silicon nanoparticle that is capable of drug delivery and targeting at atherosclerosis plaque. The nanoparticles were constructed using incorporated FITC (fluorescein isothiocyanate) and
    VHPKQHR peptide into Fe3O4@SiO2 (FITC-VHP-Fe3O4@SiO2). The FITC-VHP-Fe3O4@SiO2 nanoparticles showed great morphological characteristics, superior targeting ability, low toxicity and good biocompatibility in vitro and in vivo. The in vivo experiments showed that FITC-VHP-Fe3O4@SiO2 is a superior contrast agent of magnetic resonance imaging (MRI) for diagnosis of atherosclerosis plaques.
    关键词: Magnetic mesoporous;nanoparticles; peptide; targeting; atherosclerosis