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@ARTICLE{Kapralov:23232,
author = {Kapralov, A. and Feng, W.H. and Amoscato, Andrew and
Yanamala, N. and Balasubramanian, K. and Winnica, D. and
Kisin, E. and Kotchey, G. and Gou, P. and Sparvero, L. and
Ray, P. and Mallampalli, R. and Klein-Seetharaman, J. and
Fadeel, B. and Star, A. and Shvedova, A. and Kagan, V.},
title = {{S}elective {A}dsorption of {S}urfactant {L}ipids by
{S}ingle-{W}alled {C}arbon {N}anotubes in {M}ouse {L}ung
upon {P}haryngeal {A}spiration},
journal = {ACS nano},
volume = {6},
issn = {1936-0851},
address = {Washington, DC},
publisher = {Soc.},
reportid = {PreJuSER-23232},
pages = {4147 - 4156},
year = {2012},
note = {This work was supported by grants from National Institute
for Occupational Safety and Health (NIOSH) OH008282,
National Institutes of Health NIEHS R01ES019304, HL70755,
HL094488, U19AI068021, ES021068-01, National Occupational
Research Agenda NORA 0HELD015, 927000Y, 927Z1LU,
Nanotechnology Research Center (NTRC) 927ZJHF, National
Science Foundation (NSF) CAREER 0449117, seventh Framework
Program of the European Commission
(EC-FP7-NANOMMUNE-214281), and the Science Foundation of
Ireland, Strategic Research Cluster (SRC) BioNanointeract
and Centre for Research on Adaptive Nanostructures and
Nanodevices (CRANN), Higher Education Authority (HEA) and
Programme for Research in Third-Level Institutions (PRTLI),
and the Swedish Research Council for Environment,
Agricultural Sciences and Spatial Planning (FORMAS), Cancer
Center Support Grant (CCSG) P30 CA047904, and Environmental
Protection Agency (EPA) FP-91713801. The findings and
conclusions in this report are those of the authors and do
not necessarily represent the views of the National
Institute for Occupational Safety and Health.},
abstract = {The pulmonary route represents one of the most important
portals of entry for nanoparticles into the body. However,
the in vivo interactions of nanoparticles with biomolecules
of the lung have not been sufficiently studied. Here, using
an established mouse model of pharyngeal aspiration of
single-walled carbon nanotubes (SWCNTs), we recovered SWCNTs
from the bronchoalveolar lavage fluid (BALf), purified them
from possible contamination with lung cells, and examined
the composition of phospholipids adsorbed on SWCNTs by
liquid chromatography mass spectrometry (LC-MS) analysis. We
found that SWCNTs selectively adsorbed two types of the most
abundant surfactant phospholipids: phosphatidylcholines (PC)
and phosphatidylglycerols (PG). Molecular speciation of
these phospholipids was also consistent with pulmonary
surfactant. Quantitation of adsorbed lipids by LC-MS along
with the structural assessments of phospholipid binding by
atomic force microscopy and molecular modeling indicated
that the phospholipids (∼108 molecules per SWCNT) formed
an uninterrupted "coating" whereby the hydrophobic alkyl
chains of the phospholipids were adsorbed onto the SWCNT
with the polar head groups pointed away from the SWCNT into
the aqueous phase. In addition, the presence of surfactant
proteins A, B, and D on SWCNTs was determined by LC-MS.
Finally, we demonstrated that the presence of this
surfactant coating markedly enhanced the in vitro uptake of
SWCNTs by macrophages. Taken together, this is the first
demonstration of the in vivo adsorption of the surfactant
lipids and proteins on SWCNTs in a physiologically relevant
animal model.},
keywords = {Adsorption / Animals / Lipids: chemistry / Lung: metabolism
/ Mice / Nanotubes, Carbon / Pharynx: metabolism /
Respiratory Aspiration / Surface-Active Agents: chemistry /
Lipids (NLM Chemicals) / Nanotubes, Carbon (NLM Chemicals) /
Surface-Active Agents (NLM Chemicals) / J (WoSType)},
cin = {ICS-5},
ddc = {540},
cid = {I:(DE-Juel1)ICS-5-20110106},
pnm = {BioSoft: Makromolekulare Systeme und biologische
Informationsverarbeitung / NANOMMUNE - Comprehensive
assessment of hazardous effects of engineered nanomaterials
on the immune system (214281)},
pid = {G:(DE-Juel1)FUEK505 / G:(EU-Grant)214281},
shelfmark = {Chemistry, Multidisciplinary / Chemistry, Physical /
Nanoscience $\&$ Nanotechnology / Materials Science,
Multidisciplinary},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:22463369},
pmc = {pmc:PMC3358590},
UT = {WOS:000304231700055},
doi = {10.1021/nn300626q},
url = {https://juser.fz-juelich.de/record/23232},
}