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Selective Nanoparticle Targeting of the Renal Tubules.


ABSTRACT: Direct targeting to the kidneys is a promising strategy to improve drug therapeutic index for the treatment of kidney diseases. We sought to investigate the renal selectivity and safety of kidney-targeted mesoscale nanoparticle technology. We found that direct intravenous administration of these particles resulted in 26-fold renal selectivity and localized negligibly in the liver or other organs. The nanoparticles targeted the renal proximal tubular epithelial cells, as evidenced by intravital microscopy and ex vivo imaging. Mice treated with the nanoparticles exhibited no negative systemic consequences, immune reaction, liver impairment, or renal impairment. The localization of material selectively to the renal tubules is uncommon, and this work portends the development of renal-targeted drugs for the treatment of kidney diseases.

SUBMITTER: Williams RM 

PROVIDER: S-EPMC5730475 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature

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Selective Nanoparticle Targeting of the Renal Tubules.

Williams Ryan M RM   Shah Janki J   Tian Helen S HS   Chen Xi X   Geissmann Frederic F   Jaimes Edgar A EA   Heller Daniel A DA  

Hypertension (Dallas, Tex. : 1979) 20171113 1


Direct targeting to the kidneys is a promising strategy to improve drug therapeutic index for the treatment of kidney diseases. We sought to investigate the renal selectivity and safety of kidney-targeted mesoscale nanoparticle technology. We found that direct intravenous administration of these particles resulted in 26-fold renal selectivity and localized negligibly in the liver or other organs. The nanoparticles targeted the renal proximal tubular epithelial cells, as evidenced by intravital m  ...[more]

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