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Noninvasive Tracking of Natural Killer Cells Using Gold Nanoparticles
[Image: see text] Natural killer (NK)-cell-based immunotherapy is emerging as an attractive approach for cancer treatment. However, to facilitate and expedite clinical implementation, important questions must be answered regarding the in vivo functionality and trafficking patterns of the transferred...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8567284/ https://www.ncbi.nlm.nih.gov/pubmed/34746546 http://dx.doi.org/10.1021/acsomega.1c02143 |
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author | Shamalov, Katerina Meir, Rinat Motiei, Menachem Popovtzer, Rachela Cohen, Cyrille J. |
author_facet | Shamalov, Katerina Meir, Rinat Motiei, Menachem Popovtzer, Rachela Cohen, Cyrille J. |
author_sort | Shamalov, Katerina |
collection | PubMed |
description | [Image: see text] Natural killer (NK)-cell-based immunotherapy is emerging as an attractive approach for cancer treatment. However, to facilitate and expedite clinical implementation, important questions must be answered regarding the in vivo functionality and trafficking patterns of the transferred cells. We have recently developed a noninvasive cell-tracking technique, based on gold nanoparticles (GNPs) as cell-labeling and contrast agents for whole-body computed tomography (CT) imaging. Herein, we report the implementation of this technique for longitudinal and quantitative tracking of NK cell kinetics, the migration and biodistribution in tumor-bearing mice. NK cells were successfully labeled with GNPs, without impairing their biological function, as assessed both in vitro, by cytokine release and cytotoxicity assays, and in vivo, using a xenograft model of human tumors. Using CT, we longitudinally tracked the migration of intravenously injected NK cells and observed an accumulation of effector cell clusters at the tumor site, up to 72 h. Fluorescence imaging of the cells over time correlated with ex vivo quantitative analysis of gold content in the tumor, validating the accuracy and reliability of our technique. Our cell-tracking approach thus offers a valuable tool for preclinical studies, as well as for clinical applications, to elucidate the fate of NK cells and promote the implementation of NK-cell-based immunotherapy. |
format | Online Article Text |
id | pubmed-8567284 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-85672842021-11-05 Noninvasive Tracking of Natural Killer Cells Using Gold Nanoparticles Shamalov, Katerina Meir, Rinat Motiei, Menachem Popovtzer, Rachela Cohen, Cyrille J. ACS Omega [Image: see text] Natural killer (NK)-cell-based immunotherapy is emerging as an attractive approach for cancer treatment. However, to facilitate and expedite clinical implementation, important questions must be answered regarding the in vivo functionality and trafficking patterns of the transferred cells. We have recently developed a noninvasive cell-tracking technique, based on gold nanoparticles (GNPs) as cell-labeling and contrast agents for whole-body computed tomography (CT) imaging. Herein, we report the implementation of this technique for longitudinal and quantitative tracking of NK cell kinetics, the migration and biodistribution in tumor-bearing mice. NK cells were successfully labeled with GNPs, without impairing their biological function, as assessed both in vitro, by cytokine release and cytotoxicity assays, and in vivo, using a xenograft model of human tumors. Using CT, we longitudinally tracked the migration of intravenously injected NK cells and observed an accumulation of effector cell clusters at the tumor site, up to 72 h. Fluorescence imaging of the cells over time correlated with ex vivo quantitative analysis of gold content in the tumor, validating the accuracy and reliability of our technique. Our cell-tracking approach thus offers a valuable tool for preclinical studies, as well as for clinical applications, to elucidate the fate of NK cells and promote the implementation of NK-cell-based immunotherapy. American Chemical Society 2021-10-22 /pmc/articles/PMC8567284/ /pubmed/34746546 http://dx.doi.org/10.1021/acsomega.1c02143 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Shamalov, Katerina Meir, Rinat Motiei, Menachem Popovtzer, Rachela Cohen, Cyrille J. Noninvasive Tracking of Natural Killer Cells Using Gold Nanoparticles |
title | Noninvasive Tracking of Natural Killer Cells Using
Gold Nanoparticles |
title_full | Noninvasive Tracking of Natural Killer Cells Using
Gold Nanoparticles |
title_fullStr | Noninvasive Tracking of Natural Killer Cells Using
Gold Nanoparticles |
title_full_unstemmed | Noninvasive Tracking of Natural Killer Cells Using
Gold Nanoparticles |
title_short | Noninvasive Tracking of Natural Killer Cells Using
Gold Nanoparticles |
title_sort | noninvasive tracking of natural killer cells using
gold nanoparticles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8567284/ https://www.ncbi.nlm.nih.gov/pubmed/34746546 http://dx.doi.org/10.1021/acsomega.1c02143 |
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