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Text
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URL Address
<a href="http://doi.org/10.1166/jbn.2012.1361" target="_blank" rel="noreferrer noopener">http://doi.org/10.1166/jbn.2012.1361</a>
Pages
161–171
Issue
1
Volume
8
Dublin Core
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Title
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Antitumor effect of novel gallium compounds and efficacy of nanoparticle-mediated gallium delivery in lung cancer.
Publisher
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Journal of biomedical nanotechnology
Date
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2012
2012-02
Subject
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Antineoplastic Agents/*administration & dosage/chemistry/pharmacokinetics; Biocompatible Materials/administration & dosage/chemistry/pharmacokinetics; Cell Line; Cell Survival/drug effects; Coordination Complexes/*administration & dosage/chemistry/pharmacokinetics; Drug Carriers/administration & dosage/chemistry; Drug Stability; Endocytosis/drug effects; Gallium/*administration & dosage/chemistry/pharmacokinetics; Hemolysis/drug effects; Humans; Lung Neoplasms/*drug therapy/metabolism; Materials Testing; Membrane Potential; Mitochondrial/drug effects; Nanoparticles/*administration & dosage/chemistry; Particle Size; Platelet Aggregation/drug effects; Reactive Oxygen Species/metabolism; Transferrin/chemistry/pharmacology; Tumor
Creator
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Wehrung Daniel; Oyewumi Moses O
Description
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The widespread application of gallium (Ga) in cancer therapy has been greatly hampered by lack of specificity resulting in poor tumor accumulation and retention. To address the challenge, two lipophilic gallium (III) compounds (gallium hexanedione; GaH and gallium acetylacetonate; GaAcAc) were synthesized and antitumor studies were conducted in human lung adenocarcinoma (A549) cells. Nanoparticles (NPs) containing various concentrations of the Ga compounds were prepared using a binary mixture of Gelucire 44/14 and cetyl alcohol as matrix materials. NPs were characterized based on size, morphology, stability and biocompatibility. Antitumor effects of free or NP-loaded Ga compounds were investigated based on cell viability, production of reactive oxygen species and reduction of mitochondrial potential. Compared to free Ga compounds, cytotoxicity of NP-loaded Ga (5-150 microg/ml) was less dependent on concentration and incubation time (exposure) with A549 cells. NP-mediated delivery (5-150 microg Ga/ml) enhanced antitumor effects of Ga compounds and the effect was pronounced at: (i) shorter incubation times; and (ii) at low concentrations of gallium (approximately 50 microg/ml) (p \textless 0.0006). Additional studies showed that
Identifier
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<a href="http://doi.org/10.1166/jbn.2012.1361" target="_blank" rel="noreferrer noopener">10.1166/jbn.2012.1361</a>
Rights
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
2012
Antineoplastic Agents/*administration & dosage/chemistry/pharmacokinetics
Biocompatible Materials/administration & dosage/chemistry/pharmacokinetics
Cell Line
Cell Survival/drug effects
Coordination Complexes/*administration & dosage/chemistry/pharmacokinetics
Department of Pharmaceutical Sciences
Drug Carriers/administration & dosage/chemistry
Drug Stability
Endocytosis/drug effects
Gallium/*administration & dosage/chemistry/pharmacokinetics
Hemolysis/drug effects
Humans
Journal of biomedical nanotechnology
Lung Neoplasms/*drug therapy/metabolism
Materials Testing
Membrane Potential
Mitochondrial/drug effects
Nanoparticles/*administration & dosage/chemistry
NEOMED College of Pharmacy
Oyewumi Moses O
Particle Size
Platelet Aggregation/drug effects
Reactive Oxygen Species/metabolism
Transferrin/chemistry/pharmacology
Tumor
Wehrung Daniel