Abstract：
:One of the most challenging efforts in drug delivery is the targeting of the eye. The eye structure and barriers render this organ poorly permeable to drugs. Quite recently the entrance of nanoscience in ocular drug delivery has improved the penetration and half-life of drugs, especially in the anterior eye chamber, while targeting the posterior chamber is still an open issue. The retina and the retinal pigment epithelium/choroid tissues, located in the posterior eye chamber, are responsible for the majority of blindness both in childhood and adulthood. In the present study, we used magnetic nanoparticles (MNPs) as a nanotool for ocular drug delivery that is capable of specific localization in the retinal pigmented epithelium (RPE) layer. We demonstrate that, following intraocular injection in Xenopus embryos, MNPs localize specifically in RPE where they are retained for several days. The specificity of the localization did not depend on particle size and surface properties of the MNPs used in this work. Moreover, through similar experiments in zebrafish, we demonstrated that the targeting of RPE by the nanoparticles is not specific for the Xenopus species.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Giannaccini M,Giannini M,Calatayud MP,Goya GF,Cuschieri A,Dente L,Raffa Vdoi
10.3390/ijms15011590subject
Has Abstractpub_date
2014-01-22 00:00:00pages
1590-605issue
1issn
1422-0067pii
ijms15011590journal_volume
15pub_type
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