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van Rijt, S.H. ; Bölükbas, D.A. ; Argyo, C.* ; Wipplinger, K. ; Naureen, M. ; Datz, S.* ; Eickelberg, O. ; Meiners, S. ; Bein, T.* ; Schmid, O. ; Stöger, T.

Applicability of avidin protein coated mesoporous silica nanoparticles as drug carriers in the lung.

Nanoscale 8, 8058-8069 (2016)
Publ. Version/Full Text DOI
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
Mesoporous silica nanoparticles (MSNs) exhibit unique drug delivery properties and are thus considered as promising candidates for next generation nano-medicines. In particular, inhalation into the lungs represents a direct, non-invasive delivery route for treating lung disease. To assess MSN biocompatibility in the lung, we investigated the bioresponse of avidin-coated MSNs (MSN-AVI), as well as aminated (uncoated) MSNs, after direct application into the lungs of mice. We quantified MSN distribution, clearance rate, cell-specific uptake, and inflammatory responses to MSNs within one week after instillation. We show that amine-functionalized (MSN-NH2) particles are not taken up by lung epithelial cells, but induced a prolonged inflammatory response in the lung and macrophage cell death. In contrast, MSN-AVI co-localized with alveolar epithelial type 1 and type 2 cells in the lung in the absence of sustained inflammatory responses or cell death, and showed preferential epithelial cell uptake in in vitro co-cultures. Further, MSN-AVI particles demonstrated uniform particle distribution in mouse lungs and slow clearance rates. Thus, we provide evidence that avidin functionalized MSNs (MSN-AVI) have the potential to serve as versatile biocompatible drug carriers for lung-specific drug delivery.
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Publication type Article: Journal article
Document type Scientific Article
Keywords In-vivo; Surface Characteristics; Epithelial-cells; Delivery; Particles; Biocompatibility; Macrophages; Biodistribution; Inflammation; Sirna
ISSN (print) / ISBN 2040-3364
e-ISSN 2040-3372
Journal Nanoscale
Quellenangaben Volume: 8, Issue: 15, Pages: 8058-8069 Article Number: , Supplement: ,
Publisher Royal Society of Chemistry (RSC)
Publishing Place Cambridge
Reviewing status Peer reviewed