| PLGA nanoparticles surface decorated with the sialic acid, N-acetylneuraminic acid. | |
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MedLine Citation:
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PMID: 20132980 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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There is a broad interest in the development of nanoparticles (NPs) carrying on their surface carbohydrates such as sialic acids. It is known that these carbohydrates influence the biological and physical properties of biopharmaceutical proteins and living cells. Macromolecular compounds containing these carbohydrates showed an anti-recognition effect, exert an antiviral effect and also are able to be recognized by the cell surface of some kind of cancer cells. Thus, in the present research we performed two different approaches in order to obtain polymeric (poly(D,L-lactide-co-glycolide), PLGA) NPs surface decorated with the sialic acid N-acetylneuraminic acid (Neu5Ac). The first strategy that has been followed is based on the derivatization of the polyester PLGA with the thioderivative of Neu5Ac, starting material for the preparation of the NPs; the second is based on the synthesis of compounds potentially able to insert their lipophilic moiety into the underivatized PLGA NPs during their preparation, and to display their hydrophilic moiety (Neu5Ac) on their surface. The first approach allowed the obtainment of NPs surface decorated with Neu5Ac, as evidenced by ESCA spectroscopy and interaction with the lectin Wheat Germ Agglutinin. Moreover, a formulation of these NPs suitable for in vitro assays showed that they are phagocytosed by human monocytes with an apparently different mechanism with respect of those made of underivatized PLGA. The second strategy led to NPs in which their surface appears to be very different with respect to the NPs obtained following the first strategy, with the carboxylic groups of Neu5Ac markedly shielded. Thus, the new Neu5Ac-modified PLGA polyester represent a useful starting material for the preparation of NPs surface decorated with this sialic acid. |
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Authors:
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Lucia Bondioli; Luca Costantino; Antonio Ballestrazzi; Davide Lucchesi; Diana Boraschi; Federica Pellati; Stefania Benvenuti; Giovanni Tosi; Maria A Vandelli |
Publication Detail:
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Type: Journal Article Date: 2010-02-04 |
Journal Detail:
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Title: Biomaterials Volume: 31 ISSN: 1878-5905 ISO Abbreviation: Biomaterials Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-02-23 Completed Date: 2010-06-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8100316 Medline TA: Biomaterials Country: England |
Other Details:
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Languages: eng Pagination: 3395-403 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Pharmaceutical Sciences, University of Modena and RE, Modena, Italy. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Humans Lactic Acid* Microscopy, Electron, Scanning N-Acetylneuraminic Acid / chemistry* Nanoparticles* Particle Size Polyglycolic Acid* Spectrum Analysis / methods |
| Chemical | |
Reg. No./Substance:
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0/polylactic acid-polyglycolic acid copolymer; 131-48-6/N-Acetylneuraminic Acid; 26009-03-0/Polyglycolic Acid; 50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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