Biocompatible nanocomposite for PET/MRI hybrid imaging
Erica Locatelli,1 Larraitz Gil,2 Liron Limor Israel,3 Lorena Passoni,4,5 Maria Naddaka,1 Andrea Pucci,1 Torsten Reese,6 Vanessa Gomez-Vallejo,2 Paolo Milani,5,7 Michela Matteoli,4,8 Jordi Llop,2 Jean Paul Lellouche,3 Mauro Comes Franchini11Department of Industrial Chemistry “Toso Monta...
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Dove Medical Press
2012
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oai:doaj.org-article:42f406c7c394462a8cc054a9195005712021-12-02T05:55:47ZBiocompatible nanocomposite for PET/MRI hybrid imaging1176-91141178-2013https://doaj.org/article/42f406c7c394462a8cc054a9195005712012-12-01T00:00:00Zhttp://www.dovepress.com/biocompatible-nanocomposite-for-petmri-hybrid-imaging-a11733https://doaj.org/toc/1176-9114https://doaj.org/toc/1178-2013Erica Locatelli,1 Larraitz Gil,2 Liron Limor Israel,3 Lorena Passoni,4,5 Maria Naddaka,1 Andrea Pucci,1 Torsten Reese,6 Vanessa Gomez-Vallejo,2 Paolo Milani,5,7 Michela Matteoli,4,8 Jordi Llop,2 Jean Paul Lellouche,3 Mauro Comes Franchini11Department of Industrial Chemistry “Toso Montanari”. University of Bologna, Italy; 2Radiochemistry Department, Molecular Imaging Unit, CIC biomaGUNE, San Sebastián, Guipúzcoa, Spain; 3Department of Chemistry, Nanomaterials Research Centre, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel; 4Department of Medical Biotechnology and Translational Medicine, University of Milano, Italy; 5Fondazione Filarete, Milano, Italy; 6Imaging Department, Molecular Imaging Unit, CIC biomaGUNE, San Sebastián, Guipúzcoa, Spain; 7CIMAINA and Department of Physics, University of Milano, Italy; 8Humanitas Clinical and Research Center, Rozzano, ItalyAbstract: A novel nanocarrier system was designed and developed with key components uniquely structured at the nanoscale for early cancer diagnosis and treatment. In order to perform magnetic resonance imaging, hydrophilic superparamagnetic maghemite nanoparticles (NPs) were synthesized and coated with a lipophilic organic ligand. Next, they were entrapped into polymeric NPs made of biodegradable poly(lactic-co-glycolic acid) linked to polyethylene glycol. In addition, resulting NPs have been conjugated on their surface with a 2,2'-(7-(4-((2-aminoethyl)amino)-1-carboxy-4-oxobutyl)-1,4,7-triazonane-1,4-diyl)diacetic acid ligand for subsequent 68Ga incorporation. A cell-based cytotoxicity assay has been employed to verify the in vitro cell viability of human pancreatic cancer cells exposed to this nanosystem. Finally, in vivo positron emission tomography-computerized tomography biodistribution studies in healthy animals were performed.Keywords: maghemite nanoparticles, organic coating, polymeric nanoparticles, magnetic resonance imaging, radiolabeling, positron emission tomographyLocatelli EGil LIsrael LLPassoni LNaddaka MPucci AReese TGomez-Vallejo VMilani PMatteoli MLlop JLellouche JPComes Franchini MDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2012, Iss default, Pp 6021-6033 (2012) |
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Medicine (General) R5-920 Locatelli E Gil L Israel LL Passoni L Naddaka M Pucci A Reese T Gomez-Vallejo V Milani P Matteoli M Llop J Lellouche JP Comes Franchini M Biocompatible nanocomposite for PET/MRI hybrid imaging |
description |
Erica Locatelli,1 Larraitz Gil,2 Liron Limor Israel,3 Lorena Passoni,4,5 Maria Naddaka,1 Andrea Pucci,1 Torsten Reese,6 Vanessa Gomez-Vallejo,2 Paolo Milani,5,7 Michela Matteoli,4,8 Jordi Llop,2 Jean Paul Lellouche,3 Mauro Comes Franchini11Department of Industrial Chemistry “Toso Montanari”. University of Bologna, Italy; 2Radiochemistry Department, Molecular Imaging Unit, CIC biomaGUNE, San Sebastián, Guipúzcoa, Spain; 3Department of Chemistry, Nanomaterials Research Centre, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel; 4Department of Medical Biotechnology and Translational Medicine, University of Milano, Italy; 5Fondazione Filarete, Milano, Italy; 6Imaging Department, Molecular Imaging Unit, CIC biomaGUNE, San Sebastián, Guipúzcoa, Spain; 7CIMAINA and Department of Physics, University of Milano, Italy; 8Humanitas Clinical and Research Center, Rozzano, ItalyAbstract: A novel nanocarrier system was designed and developed with key components uniquely structured at the nanoscale for early cancer diagnosis and treatment. In order to perform magnetic resonance imaging, hydrophilic superparamagnetic maghemite nanoparticles (NPs) were synthesized and coated with a lipophilic organic ligand. Next, they were entrapped into polymeric NPs made of biodegradable poly(lactic-co-glycolic acid) linked to polyethylene glycol. In addition, resulting NPs have been conjugated on their surface with a 2,2'-(7-(4-((2-aminoethyl)amino)-1-carboxy-4-oxobutyl)-1,4,7-triazonane-1,4-diyl)diacetic acid ligand for subsequent 68Ga incorporation. A cell-based cytotoxicity assay has been employed to verify the in vitro cell viability of human pancreatic cancer cells exposed to this nanosystem. Finally, in vivo positron emission tomography-computerized tomography biodistribution studies in healthy animals were performed.Keywords: maghemite nanoparticles, organic coating, polymeric nanoparticles, magnetic resonance imaging, radiolabeling, positron emission tomography |
format |
article |
author |
Locatelli E Gil L Israel LL Passoni L Naddaka M Pucci A Reese T Gomez-Vallejo V Milani P Matteoli M Llop J Lellouche JP Comes Franchini M |
author_facet |
Locatelli E Gil L Israel LL Passoni L Naddaka M Pucci A Reese T Gomez-Vallejo V Milani P Matteoli M Llop J Lellouche JP Comes Franchini M |
author_sort |
Locatelli E |
title |
Biocompatible nanocomposite for PET/MRI hybrid imaging |
title_short |
Biocompatible nanocomposite for PET/MRI hybrid imaging |
title_full |
Biocompatible nanocomposite for PET/MRI hybrid imaging |
title_fullStr |
Biocompatible nanocomposite for PET/MRI hybrid imaging |
title_full_unstemmed |
Biocompatible nanocomposite for PET/MRI hybrid imaging |
title_sort |
biocompatible nanocomposite for pet/mri hybrid imaging |
publisher |
Dove Medical Press |
publishDate |
2012 |
url |
https://doaj.org/article/42f406c7c394462a8cc054a919500571 |
work_keys_str_mv |
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1718400167236861952 |