Abstract
SDS-CTAB cat-anionic vesicles are supramolecular aggregates forming complexes with biopolymers and enter the cells via membrane fusion or endocytosis. Different applicative areas exist: gene therapy, drug delivery and nanotechnology. We previously examined the absorption/release of biopolymers from vesicles in solution. Here we evaluate their cytotoxicity in cultured cells; to this end we characterized the vesicles and analyzed their biological effects at cellular and molecular level. At low concentration these vesicles have scarce consequences on normal cell growth; at higher dosage they activate apoptotic death processes, due to membrane damage. In conclusion, the use of these particles in nano-biotechnology represents an actual possibility.
2010 Elsevier B.V. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Analysis of Variance
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Animals
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Anions / chemistry
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Apoptosis / drug effects*
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Blotting, Western
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Cations / chemistry
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Cell Line
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Cell Survival / drug effects
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Cetrimonium
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Cetrimonium Compounds / chemistry
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Cetrimonium Compounds / pharmacology*
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DNA Fragmentation / drug effects
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Dose-Response Relationship, Drug
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HL-60 Cells
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HeLa Cells
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Humans
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In Situ Nick-End Labeling
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Poly(ADP-ribose) Polymerases / metabolism
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Proto-Oncogene Proteins c-bcl-2 / genetics
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Reverse Transcriptase Polymerase Chain Reaction
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Sodium Dodecyl Sulfate / chemistry
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Unilamellar Liposomes / chemistry
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Unilamellar Liposomes / pharmacology*
Substances
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Anions
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Cations
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Cetrimonium Compounds
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Proto-Oncogene Proteins c-bcl-2
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Unilamellar Liposomes
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Sodium Dodecyl Sulfate
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Poly(ADP-ribose) Polymerases
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Cetrimonium