Age-Dependent Rat Lung Deposition Patterns of Inhaled 20 Nanometer Gold Nanoparticles and their Quantitative Biokinetics in Adult Rats

Wolfgang G. Kreyling, Winfried Möller, Uwe Holzwarth, Stephanie Hirn, Alexander Wenk, Carsten Schleh, Martin Schäffler, Nadine Haberl, Johannes C. Schittny

ACS Nano · 2018 · 87 citations · 64 references

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Abstract

) In contrast, AuNP-translocation across the air-blood barrier was much smaller leading to persistent retention in secondary organs and tissues in the ranking order liver > soft issue > spleen > kidneys > skeleton > blood > uterus > heart > brain. The age-independent, inhomogeneous AuNP deposition was probably caused by the negative pressure ventilation. Long-term AuNP clearance was dominated by macrophage-mediated transport from the interstitium to the larynx and GIT. Translocation across the rat air-blood barrier appeared to be similar to that of humans for similar sized AuNP.

References

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