Sammanfattning

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. (c) 2017 Elsevier Inc. All rights reserved.

Nyckelord

alpha-Fe2O3 NPs; Contact/kallikrein system; Innate immunity

Publicerad i

Nanomedicine: Nanotechnology, Biology and Medicine
2018, Volym: 14, nummer: 3, sidor: 735-744
Utgivare: ELSEVIER SCIENCE BV

SLU författare

• Seisenbaeva, Gulaim

  • Institutionen för molekylära vetenskaper, Sveriges lantbruksuniversitet
    

• Kessler, Vadim

  • Institutionen för molekylära vetenskaper, Sveriges lantbruksuniversitet
    

Globala målen

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UKÄ forskningsämne

Immunologi inom det medicinska området


Publikationens identifierare

DOI: https://doi.org/10.1016/j.nano.2017.12.008

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/95007