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Comprehensive and systematic analysis of the immunocompatibility of polyelectrolyte capsules

AuthorsZyuzin, Mikhail V.; Díez, Paula; Goldsmith, Mier; Carregal-Romero, Susana; Teodosio, Cristina; Rejman, Joanna; Feliu, Neus; Escudero, Alberto; Almendral Parra, María Jesús; Linne, Uwe; Peer, Dan; Fuentes, Manuel ; Parak, Wolfgang J.
Issue Date2017
PublisherAmerican Chemical Society
CitationBioconjugate Chemistry 28(2): 556-564 (2017)
AbstractThe immunocompability of polyelectrolyte capsules synthesized by layer-by-layer deposition has been investigated. Capsules of different architecture and composed of either non-degradable or biodegradable polymers, with either positively or negatively charged outer surface, and with micrometer size, have been used, and the capsule uptake by different cell lines has been studied and quantified. Immunocompatibility studies were performed with peripheral blood mononuclear cells (PBMCs). Data demonstrate that incubation with capsules, at concentrations relevant for practical applications, did not result in a reduced viability of cells, as it did not show an increased apoptosis. Presence of capsules also did not result in an increased expression of TNF-α, as detected with antibody staining, as well as at mRNA level. It also did not result in increased expression of IL-6, as detected at mRNA level. These results indicate that the polyelectrolyte capsules used in this study are immunocompatible.
Identifiersdoi: 10.1021/acs.bioconjchem.6b00657
e-issn: 1520-4812
issn: 1043-1802
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