Article Dans Une Revue Nano Research Année : 2016

Ferritin surplus in mouse spleen 14 months after intravenous injection of iron oxide nanoparticles at clinical dose

Valentin-Adrian Maraloiu
  • Fonction : Auteur
  • PersonId : 769237
  • IdRef : 171450213

Résumé

In this study, we followed the biodegradation of ultra-small superparamagnetic iron oxide nanoparticles injected intravenously at clinical doses in mice. An advanced fitting procedure for magnetic susceptibility curves and low-temperature hysteresis loops was used to fully characterize the magnetic size distribution as well as the magnetic anisotropy energy of the injected P904 nanoparticles (Guerbet Laboratory). Additional magnetometry measurements and transmission electronic microscopy observations were systematically performed to examine dehydrated samples from the spleen and liver of healthy C57B16 mice after nanoparticle injection, with sacrifice of the mice for up to 14 months. At 3 months after injection, the magnetic properties of the spleen and liver were dramatically different. While the liver showed no magnetic signals other than those also present in the reference species, the spleen showed an increased magnetic signal attributed to ferritin. This surplus of ferritin remained constant up to 14 months after injection.
Fichier non déposé

Dates et versions

hal-02289463 , version 1 (16-09-2019)

Identifiants

Citer

Alexandre Tamion, Matthias Hillenkamp, Arnaud Hillion, Valentin-Adrian Maraloiu, Ioana D. Vlaicu, et al.. Ferritin surplus in mouse spleen 14 months after intravenous injection of iron oxide nanoparticles at clinical dose. Nano Research, 2016, 9, pp.2398-2410. ⟨10.1007/s12274-016-1126-6⟩. ⟨hal-02289463⟩
55 Consultations
0 Téléchargements

Altmetric

Partager

More