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Contact (kallikrein/kinin) system activation in whole human blood induced by low concentrations of α-Fe2O3 nanoparticles.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Klinisk immunologi.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
Division of CBRN Defence and Security, Swedish Defence Research Agency, Umeå, Sweden.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Klinisk immunologi.
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2018 (engelsk)Inngår i: Nanomedicine: Nanotechnology, Biology and Medicine, ISSN 1549-9634, E-ISSN 1549-9642, Vol. 14, nr 3, s. 735-744Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Iron-oxide nanoparticles (NPs) generated by environmental events are likely to represent health problems. alpha-Fe2O3 NPs were synthesized, characterized and tested in a model for toxicity utilizing human whole blood without added anticoagulant. MALDI-TOF of the corona was performed and activation markers for plasma cascade systems (complement, contact and coagulation systems), platelet consumption and release of growth factors, MPO, and chemokine/cytokines from blood cells were analyzed. The coronas formed on the pristine alpha-Fe2O3 NPs contained contact system proteins and they induced massive activation of the contact (kinin/kallikrein) system, as well as thrombin generation, platelet activation, and release of two pro-angiogeneic growth factors: platelet-derived growth factor and vascular endothelial growth factor, whereas complement activation was unaffected. The alpha-Fe2O3 NPs exhibited a noticeable toxicity, with kinin/kallikrein activation, which may be associated with hypotension and long-term angiogenesis in vivo, with implications for cancer, arteriosclerosis and pulmonary disease.

sted, utgiver, år, opplag, sider
Elsevier, 2018. Vol. 14, nr 3, s. 735-744
Emneord [en]
α-Fe2O3, NPsContact/kallikrein system, Innate immunity
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-343471DOI: 10.1016/j.nano.2017.12.008ISI: 000429528900010OAI: oai:DiVA.org:uu-343471DiVA, id: diva2:1186181
Forskningsfinansiär
Swedish Research Council, 2014-3938 2016-2075-5.1 2016-01060 2016-04519EU, FP7, Seventh Framework Programme, 602699AFA Insurance
Merknad

Joint and equal contribution to senior authorship by Kristina N. Ekdahl, Padideh Davoodpour and Bo Nilsson

Tilgjengelig fra: 2018-02-27 Laget: 2018-02-27 Sist oppdatert: 2019-12-14bibliografisk kontrollert

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Nilsson Ekdahl, KristinaDavoodpour, PadidehFromell, KarinHamad, Osama A.Hong, JaanNilsson, Bo

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