Dysprosium-Modified Tobacco Mosaic Virus Nanoparticles for Ultra-High-Field Magnetic Resonance and Near-Infrared Fluorescence Imaging of Prostate Cancer.
Dysprosium-Modified Tobacco Mosaic Virus Nanoparticles for Ultra-High-Field Magnetic Resonance and Near-Infrared Fluorescence Imaging of Prostate Cancer.
复制标题
DOI:
10.1021/acsnano.7b04472
复制
发表时间:
2017-09-26
期刊:
影响因子:
17.1
通讯作者:
Steinmetz NF
中科院分区:
文献类型:
--
作者:
Hu H;Zhang Y;Shukla S;Gu Y;Yu X;Steinmetz NF
The increasing prevalence of ultra-high-field magnetic resonance imaging (UHFMRI) in biomedical research and clinical settings will improve the resolution and diagnostic accuracy of MRI scans. However, better contrast agents are needed to achieve a satisfactory signal-to-noise ratio. Here, we report the synthesis of a bimodal contrast agent prepared by loading the internal cavity of tobacco mosaic virus (TMV) nanoparticles with a dysprosium (Dy3+) complex and the near-infrared fluorescence (NIRF) dye Cy7.5. The external surface of TMV was conjugated with an Asp-Gly-Glu-Ala (DGEA) peptide via a polyethylene glycol linker to target integrin α2β1. The resulting nanoparticle (Dy-Cy7.5-TMV-DGEA) was stable and achieved a high transverse relaxivity in ultra-high-strength magnetic fields (326 and 399 mM–1 s–1 at 7 and 9.4 T, respectively). The contrast agent was also biocompatible (low cytotoxicity) and targeted PC-3 prostate cancer cells and tumors in vitro and in vivo as confirmed by bimodal NIRF imaging and T2-mapping UHFMRI. Our results show that Dy-Cy7.5-TMV-DGEA is suitable for multiscale MRI scanning from the cellular level to the whole body, particularly in the context of UHFMRI applications.
登录
查看更多内容
影响因子:
17.1
作者:
Kumar R;Roy I;Ohulchanskky TY;Vathy LA;Bergey EJ;Sajjad M;Prasad PN
通讯作者:
Prasad PN
DOI:
10.1002/anie.201503417
发表时间:
2015-09-07
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Banerjee SR;Ngen EJ;Rotz MW;Kakkad S;Lisok A;Pracitto R;Pullambhatla M;Chen Z;Shah T;Artemov D;Meade TJ;Bhujwalla ZM;Pomper MG
通讯作者:
Pomper MG
影响因子:
2.2
作者:
GUERON, M
通讯作者:
GUERON, M
影响因子:
17.1
作者:
Albanese, Alexandre;Chan, Warren C. W.
通讯作者:
Chan, Warren C. W.
DOI:
10.1002/jmri.24787
发表时间:
2015-09
期刊:
Journal of magnetic resonance imaging : JMRI
影响因子:
--
作者:
De León-Rodríguez LM;Martins AF;Pinho MC;Rofsky NM;Sherry AD
通讯作者:
Sherry AD