Gold nanoparticles for multimodal high-resolution imaging of transplanted cells for retinal replacement therapy

Yoav Chemla, Oshra Betzer, Amos Markus, Nairouz Farah, Menachem Motiei, Rachela Popovtzer, Yossi Mandel

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

Aim: Longitudinal tracking of transplanted cells in clinical and experimental setups is crucial for evaluating the efficiency of retinal cell replacement therapies. Materials & methods: Gold nanoparticle-labeled photoreceptor precursors were transplanted in the vitreous and subretinal space of rats and were longitudinally tracked for over a month using optical coherence tomography, computed tomography and fluorescence fundus imaging. Results: This multimodal imaging approach enabled high-resolution long-term tracking and estimation of cell survival in the retina and vitreous, while displaying no toxic effects on the cells or the retina. Conclusion: These observations highlight the applicability of using gold nanoparticle for retinal cell tracking in existing experimental settings and its translational potential for providing more efficient retinal cell therapy in humans.

Original languageEnglish
Pages (from-to)1857-1871
Number of pages15
JournalNanomedicine
Volume14
Issue number14
DOIs
StatePublished - Jul 2019

Bibliographical note

Publisher Copyright:
© 2019 Future Medicine Ltd.

Funding

This work was supported by the Israeli Ministry of Science, Technology & Space doctoral and postdoctoral scholarships (Y Chemla and O Betzer), by the Israeli Council for Higher Education postdoctoral scholarship (O Betzer), by the Israeli Ministry of Defense (Y Mandel), by an ERC starter grant to Y Mandel and by the Israel Science Foundation ISF 749/14 (R Popovtzer). The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed. No writing assistance was utilized in the production of this manuscript.

FundersFunder number
Israeli Council for Higher Education
Israeli Ministry of Defense
Israeli Ministry of Science
European Commission
Israel Science FoundationISF 749/14

    Keywords

    • CT imaging
    • OCT imaging
    • cell tracking
    • cell transplantation
    • gold nanoparticles
    • retina

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