Abstract
An effective strategy has been developed for synthesis of radionuclide immune albumin nanospheres ((131)I-antiAFPMcAb-GCV-BSA-NPs). In vitro as well as in vivo targeting of (131)I-antiAFPMcAb-GCV-BSA-NPs to AFP-positive hepatoma was examined. In cultured HepG2 cells, the uptake and retention rates of (131)I-antiAFPMcAb-GCV-BSA-NPs were remarkably higher than those of (131)I alone. As well, the uptake rate and retention ratios of (131)I-antiAFPMcAb-GCV-BSA-NPs in AFP-positive HepG2 cells were also significantly higher than those in AFP-negative HEK293 cells. Compared to (131)I alone, (131)I-antiAFPMcAb-GCV-BSA-NPs were much more easily taken in and retained by hepatoma tissue, with a much higher T/NT. Due to good drug-loading, high encapsulation ratio, and highly selective affinity for AFP-positive tumors, the (131)I-antiAFPMcAb-GCV-BSA-NPs are promising for further effective radiation-gene therapy of hepatoma.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Antibodies, Monoclonal / administration & dosage
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Antibodies, Monoclonal / immunology
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Antibodies, Monoclonal / therapeutic use*
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Carcinoma, Hepatocellular / genetics
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Carcinoma, Hepatocellular / metabolism
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Carcinoma, Hepatocellular / therapy*
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Chemoradiotherapy / methods
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Drug Delivery Systems / methods
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Female
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Ganciclovir / administration & dosage
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Ganciclovir / therapeutic use*
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Genetic Therapy / methods
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HEK293 Cells
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Hep G2 Cells
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Humans
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Iodine Radioisotopes / administration & dosage
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Iodine Radioisotopes / pharmacokinetics
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Iodine Radioisotopes / therapeutic use*
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Liver Neoplasms / genetics
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Liver Neoplasms / metabolism
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Liver Neoplasms / therapy*
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Mice, Inbred BALB C
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Mice, Nude
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Microscopy, Electron, Transmission
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Nanospheres / administration & dosage
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Nanospheres / chemistry
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Nanospheres / ultrastructure
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Serum Albumin, Bovine / chemistry
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Tissue Distribution
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Xenograft Model Antitumor Assays
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alpha-Fetoproteins / genetics
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alpha-Fetoproteins / immunology
Substances
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Antibodies, Monoclonal
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Iodine Radioisotopes
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alpha-Fetoproteins
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Serum Albumin, Bovine
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Ganciclovir