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Merck
  • Biocompatibility of ferritin-based nanoparticles as targeted MRI contrast agents.

Biocompatibility of ferritin-based nanoparticles as targeted MRI contrast agents.

Nanomedicine : nanotechnology, biology, and medicine (2016-04-14)
Jennifer R Charlton, Valeria M Pearl, Anna R Denotti, Jonathan B Lee, Sundararaman Swaminathan, Yogesh M Scindia, Nathan P Charlton, Edwin J Baldelomar, Scott C Beeman, Kevin M Bennett
초록

Ferritin is a naturally occurring iron storage protein, proposed as a clinically relevant nanoparticle with applications as a diagnostic and therapeutic agent. Cationic ferritin is a targeted, injectable contrast agent to measure kidney microstructure with MRI. Here, the toxicity of horse spleen ferritin is assessed as a step to clinical translation. Adult male mice received cationic, native and high dose cationic ferritin (CF, NF, or HDCF) or saline and were monitored for 3weeks. Transient weight loss occurred in the ferritin groups with no difference in renal function parameters. Ferritin-injected mice demonstrated a lower serum iron 3weeks after administration. In ferritin-injected animals pre-treated with hydrocortisone, there were no structural or weight differences in the kidneys, liver, lung, heart, or spleen. This study demonstrates a lack of significant detrimental effects of horse-derived ferritin-based nanoparticles at MRI-detectable doses, allowing further exploration of these agents in basic research and clinical diagnostics.

MATERIALS
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Sigma-Aldrich
Anti-Horse Spleen Ferritin antibody produced in rabbit, affinity isolated antibody, lyophilized powder
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