Surface Modification of Microparticles Causes Differential Uptake Responses in Normal and Tumoral Human Breast Epithelial Cells

Overview

Journal Sci Rep

Specialty Science

Date 2015 Jun 13

PMID 26068810

Citations 29

Authors

Tania Patino

Jorge Soriano

Lleonard Barrios

Elena Ibanez

Carme Nogues

Affiliations

Soon will be listed here.

Abstract

The use of micro- and nanodevices as multifunctional systems for biomedical applications has experienced an exponential growth during the past decades. Although a large number of studies have focused on the design and fabrication of new micro- and nanosystems capable of developing multiple functions, a deeper understanding of their interaction with cells is required. In the present study, we evaluated the effect of different microparticle surfaces on their interaction with normal and tumoral human breast epithelial cell lines. For this, AlexaFluor488 IgG functionalized polystyrene microparticles (3 μm) were coated with Polyethyleneimine (PEI) at two different molecular weights, 25 and 750 kDa. The effect of microparticle surface properties on cytotoxicity, cellular uptake and endocytic pathways were assessed for both normal and tumoral cell lines. Results showed a differential response between the two cell lines regarding uptake efficiency and mechanisms of endocytosis, highlighting the potential role of microparticle surface tunning for specific cell targeting.

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