Macromolecular Bioscience 2015-11-01

A New Hyaluronic Acid Derivative Obtained from Atom Transfer Radical Polymerization as a siRNA Vector for CD44 Receptor Tumor Targeting.

Fabio Salvatore Palumbo, Antonella Bavuso Volpe, Flavia Bongiovì, Giovanna Pitarresi, Gaetano Giammona

文献索引：Macromol. Biosci. 15 , 1605-15, (2015)

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摘要

Two derivatives of hyaluronic acid (HA) have been synthesized by atom transfer radical polymerization (ATRP), starting from an ethylenediamino HA derivative (HA-EDA) and by using diethylaminoethyl methacrylate (DEAEMA) as a monomer for polymerization. Both samples, indicated as HA-EDA-pDEAEMA a and b, are able to condense siRNA, as determined by gel retardation assay and resulting complexes show a size and a zeta potential value dependent on polymerization number, as determined by dynamic light scattering measurements. In vitro studies performed on HCT 116 cell line, that over express CD44 receptor, demonstrate a receptor mediated uptake of complexes, regardless of their surface charge. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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