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Polyak A, Naszalyi Nagy L, Mihaly J, Görres S, Wittneben A, Leiter I, Bankstahl JP, Sajti L, Kellermayer M, Zrínyi M, Ross TL. Preparation and 68Ga-radiolabeling of porous zirconia nanoparticle platform for PET/CT-imaging guided drug delivery. J Pharm Biomed Anal 2017; 137:146-150. [PMID: 28119212 DOI: 10.1016/j.jpba.2017.01.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 11/18/2022]
Abstract
This paper describes the preparation of gallium-68 (68Ga) isotope labeled porous zirconia (ZrO2) nanoparticle (NP) platform of nearly 100nm diameter and its first pharmacokinetic and biodistribution evaluation accomplished with a microPET/CT (μPet/CT) imaging system. Objectives of the investigations were to provide a nanoparticle platform which can be suitable for specific delivery of various therapeutic drugs using surface attached specific molecules as triggering agents, and at the same time, suitable for positron emission tomography (PET) tracing of the prospective drug delivery process. Radiolabeling was accomplished using DOTA bifunctional chelator. DOTA was successfully adsorbed onto the surface of nanoparticles, while the 68Ga-radiolabeling method proved to be simple and effective. In the course of biodistribution studies, the 68Ga-labeled DOTA-ZrNPs showed proper radiolabeling stability in their original suspension and in blood serum. μPet/CT imaging studies confirmed a RES-biodistribution profile indicating stable nano-sized labeled particles in vivo. Results proved that the new method offers the opportunity to examine further specifically targeted and drug payload carrier variants of zirconia NP systems using PET/CT imaging.
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Affiliation(s)
- Andras Polyak
- Department of Nuclear Medicine, Hannover Medical School, Carl-Neuberg Str 1, 30627 Hannover, Germany.
| | - Lívia Naszalyi Nagy
- MTA-SE Molecular Biophysics Research Group, Semmelweis University, Tűzoltó Str 37-47, H-1094 Budapest, Hungary; Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok Blvd 2, H-1117 Budapest, Hungary
| | - Judith Mihaly
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar Tudósok Blvd 2, H-1117 Budapest, Hungary
| | - Sebastian Görres
- Department of Nuclear Medicine, Hannover Medical School, Carl-Neuberg Str 1, 30627 Hannover, Germany
| | - Alexander Wittneben
- Department of Nuclear Medicine, Hannover Medical School, Carl-Neuberg Str 1, 30627 Hannover, Germany
| | - Ina Leiter
- Department of Nuclear Medicine, Hannover Medical School, Carl-Neuberg Str 1, 30627 Hannover, Germany; Institute for Pharmacology, Toxicology and Pharmacy, University of Veterinary Medicine, Hannover Bünteweg 2, 30559 Hannover Germany
| | - Jens P Bankstahl
- Department of Nuclear Medicine, Hannover Medical School, Carl-Neuberg Str 1, 30627 Hannover, Germany
| | - Laszlo Sajti
- Nanotechnology Department, Laser Zentrum Hannover e.V., Hollerithallee 8, D-30419 Hannover, Germany
| | - Miklós Kellermayer
- MTA-SE Molecular Biophysics Research Group, Semmelweis University, Tűzoltó Str 37-47, H-1094 Budapest, Hungary
| | - Miklós Zrínyi
- MTA-SE Molecular Biophysics Research Group, Semmelweis University, Tűzoltó Str 37-47, H-1094 Budapest, Hungary; Nanochemistry Research Group, Semmelweis University, Nagyvárad Sqr 4, 1089 Budapest, Hungary
| | - Tobias L Ross
- Department of Nuclear Medicine, Hannover Medical School, Carl-Neuberg Str 1, 30627 Hannover, Germany
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