Title |
Fate of TLR-1/TLR-2 agonist functionalised pDNA nanoparticles upon deposition at the human bronchial epithelium in vitro
|
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Published in |
Journal of Nanobiotechnology, August 2013
|
DOI | 10.1186/1477-3155-11-29 |
Pubmed ID | |
Authors |
Simon Heuking, Barbara Rothen-Rutishauser, David Olivier Raemy, Peter Gehr, Gerrit Borchard |
Abstract |
Plasmid DNA vaccination is a promising approach, but studies in non-human primates and humans failed to achieve protective immunity. To optimise this technology further with focus on pulmonary administration, we developed and evaluated an adjuvant-equipped DNA carrier system based on the biopolymer chitosan. In more detail, the uptake and accompanying immune response of adjuvant Pam3Cys (Toll-like receptor-1/2 agonist) decorated chitosan DNA nanoparticles (NP) were explored by using a three-dimensional (3D) cell culture model of the human epithelial barrier. Pam3Cys functionalised and non-functionalised chitosan DNA NP were sprayed by a microsprayer onto the surface of 3D cell cultures and uptake of NP by epithelial and immune cells (blood monocyte-derived dendritic cells (MDDC) and macrophages (MDM)) was visualised by confocal laser scanning microscopy. In addition, immune activation by TLR pathway was monitored by analysis of interleukin-8 and tumor necrosis factor-α secretions (ELISA). |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 51 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 10 | 20% |
Researcher | 10 | 20% |
Student > Master | 6 | 12% |
Student > Bachelor | 3 | 6% |
Professor | 3 | 6% |
Other | 8 | 16% |
Unknown | 11 | 22% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 10 | 20% |
Medicine and Dentistry | 9 | 18% |
Pharmacology, Toxicology and Pharmaceutical Science | 3 | 6% |
Immunology and Microbiology | 3 | 6% |
Biochemistry, Genetics and Molecular Biology | 3 | 6% |
Other | 8 | 16% |
Unknown | 15 | 29% |