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Seminars in immunology v.34, 2017년, pp.33 - 51   SCIE
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Nanoparticles and innate immunity: new perspectives on host defence

Boraschi, Diana (Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino 111, 80131 Napoli, Italy ) ; Italiani, Paola (Institute of Protein Biochemistry, National Research Council, Via Pietro Castellino 111, 80131 Napoli, Italy ) ; Palomba, Roberto (Laboratory of Nanotechnology for Precision Medicine, Italian Institute of Technology Foundation, Via Morego 30, 16163 Genova, Italy ) ; Decuzzi, Paolo (Laboratory of Nanotechnology for Precision Medicine, Italian Institute of Technology Foundation, Via Morego 30, 16163 Genova, Italy ) ; Duschl, Albert (Department of Molecular Biology, Paris-Lodron Universität Salzburg, Hellbrunner Strasse 34, 5020 Salzburg, Austria ) ; Fadeel, Bengt (Nanosafety and Nanomedicine Laboratory, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, 171 77 Stockholm, Sweden ) ; Moghimi, S. Moein (School of Medicine, Pharmacy and Health, Durham University, Queen's Campus, Stockton-on-Tees TS17 6BH, UK ) ;
  • 초록  

    Abstract The innate immune system provides the first line of defence against foreign microbes and particulate materials. Engineered nanoparticles can interact with the immune system in many different ways. Nanoparticles may thus elicit inflammation with engagement of neutrophils, macrophages and other effector cells; however, it is important to distinguish between acute and chronic inflammation in order to identify the potential hazards of nanoparticles for human health. Nanoparticles may also interact with and become internalised by dendritic cells, key antigen-presenting cells of the immune system, where a better understanding of these processes could pave the way for improved vaccination strategies. Nanoparticle characteristics such as size, shape and deformability also influence nanoparticle uptake by a plethora of immune cells and subsequent immune responses. Furthermore, the corona of adsorbed biomolecules on nanoparticle surfaces should not be neglected. Complement activation represents a special case of regulated and dynamic corona formation on nanoparticles with important implications in clearance and safety. Additionally, the inadvertent binding of bacterial lipopolysaccharide to nanoparticles is important to consider as this may skew the outcome and interpretation of immunotoxicological studies. Here, we discuss nanoparticle interactions with different cell types and soluble mediators belonging to the innate immune system. Highlights The innate immune system is the first to come in contact with NPs entering the body. Contamination of NPs with LPS may skew the interpretation of immunotoxicological data. NPs may elicit inflammation, but this is not per se a sign of toxicity. NPs may alter the polarisation of macrophages and the function of dendritic cells in antigen-presentation. NP size, shape, surface coating and deformability may influence their cellular uptake. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Innate immunity .   Engineered nanoparticles .   Inflammation .   Immunosafety .   Toxicity .   Complement.  

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