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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 PMC
Open Access Hybrid
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
Institute(s) Institute of Lung Health and Immunity (LHI)