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Construction of Epidermal Growth Factor Receptor Peptide Magnetic Nanovesicles with Lipid Bilayers for Enhanced Capture of Liver Cancer Circulating Tumor Cells
Author(s) -
Jian Ding,
Kai Wang,
Wenjie Tang,
Dan Li,
Youzhen Wei,
Ying Lü,
ZongHai Li,
Xiaofei Liang
Publication year - 2016
Publication title -
analytical chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.117
H-Index - 332
eISSN - 1520-6882
pISSN - 0003-2700
DOI - 10.1021/acs.analchem.6b01443
Subject(s) - chemistry , fluorescein isothiocyanate , epidermal growth factor receptor , peptide , circulating tumor cell , epidermal growth factor , cancer cell , vesicle , epithelial cell adhesion molecule , biophysics , cancer , liver cancer , receptor , cancer research , cell , biochemistry , fluorescence , membrane , hepatocellular carcinoma , metastasis , medicine , physics , quantum mechanics , biology
Highly effective targeted tumor recognition via vectors is crucial for cancer detection. In contrast to antibodies and proteins, peptides are direct targeting ligands with a low molecular weight. In the present study, a peptide magnetic nanovector platform containing a lipid bilayer was designed using a peptide amphiphile (PA) as a skeleton material in a controlled manner without surface modification. Fluorescein isothiocyanate-labeled epidermal growth factor receptor (EGFR) peptide nanoparticles (NPs) could specifically bind to EGFR-positive liver tumor cells. EGFR peptide magnetic vesicles (EPMVs) could efficiently recognize and separate hepatoma carcinoma cells from cell solutions and treated blood samples (ratio of magnetic EPMVs versus anti-EpCAM NPs: 3.5 ± 0.29). Analysis of the circulating tumor cell (CTC) count in blood samples from 32 patients with liver cancer showed that EPMVs could be effectively applied for CTC capture. Thus, this nanoscale, targeted cargo-packaging technology may be useful for designing cancer diagnostic systems.

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