Detecting GPC3-Expressing Hepatocellular Carcinoma with L5 Peptide-Guided Pretargeting Approach: In Vitro and In Vivo MR Imaging Experiments

المؤلفون المشاركون

Li, Weiyue
Xiao, Xiang
Li, Xiaodan
Xu, Yikai
Ma, Lichao
Guo, Liuji
Yan, Chenggong
Wu, Yuankui

المصدر

Contrast Media & Molecular Imaging

العدد

المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-11، 11ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2018-09-10

دولة النشر

مصر

عدد الصفحات

11

التخصصات الرئيسية

الأمراض
الطب البشري

الملخص EN

Objective.

To investigate the potential of L5 peptide-guided pretargeting approach to identify GPC3-expressing hepatocellular carcinoma (HCC) using ultrasmall superparamagnetic iron oxide (USPIO) as the MR probe.

Methods.

Immunofluorescence with carboxyfluorescein- (FAM-) labeled L5 peptide was performed in HepG2 cells.

Polyethylene glycol-modified USPIO (PEG-USPIO) and its conjugation with streptavidin (SA-PEG-USPIO) were synthesized, and their hydrodynamic diameters, zeta potential, T2 relaxivity, and cytotoxicity were measured.

In vitro and in vivo two-step pretargeting MR imaging was performed on HepG2 cells and tumor-bearing mice after the administration of biotinylated L5 peptide (first step), followed by SA-PEG-USPIO (second step).

Prussian blue staining was performed to assess iron deposition in tumors.

Results.

The high specificity of L5 peptide for GPC3 was demonstrated.

Generation of SA-PEG-USPIO nanoparticles with good biocompatibility (an average hydrodynamic diameter of 35.97 nm and a zeta potential of −7.91 mV), superparamagnetism (R2 = 0.1039 × 103 mM−1s−1), and low toxicity was achieved.

The pretargeting group showed more enhancement than the nonpretargeting group both in vitro (60% vs 20%, P<0.05) and in vivo (32% vs 6%, P<0.001).

Substantial iron deposition was only observed in HepG2 cells and tumors in the pretargeting group.

Conclusion.

L5 peptide-guided, two-step pretargeting approach with USPIO as the MR imaging probe is a lucrative strategy to specifically identify GPC3-expressing HCC.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Li, Weiyue& Xiao, Xiang& Li, Xiaodan& Xu, Yikai& Ma, Lichao& Guo, Liuji…[et al.]. 2018. Detecting GPC3-Expressing Hepatocellular Carcinoma with L5 Peptide-Guided Pretargeting Approach: In Vitro and In Vivo MR Imaging Experiments. Contrast Media & Molecular Imaging،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1131639

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Li, Weiyue…[et al.]. Detecting GPC3-Expressing Hepatocellular Carcinoma with L5 Peptide-Guided Pretargeting Approach: In Vitro and In Vivo MR Imaging Experiments. Contrast Media & Molecular Imaging No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1131639

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Li, Weiyue& Xiao, Xiang& Li, Xiaodan& Xu, Yikai& Ma, Lichao& Guo, Liuji…[et al.]. Detecting GPC3-Expressing Hepatocellular Carcinoma with L5 Peptide-Guided Pretargeting Approach: In Vitro and In Vivo MR Imaging Experiments. Contrast Media & Molecular Imaging. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1131639

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1131639