PMID- 28214127 OWN - NLM STAT- MEDLINE DCOM- 20170802 LR - 20220330 IS - 1477-2566 (Electronic) IS - 1465-3249 (Print) IS - 1465-3249 (Linking) VI - 19 IP - 4 DP - 2017 Apr TI - Functionalized superparamagnetic iron oxide nanoparticles provide highly efficient iron-labeling in macrophages for magnetic resonance-based detection in vivo. PG - 555-569 LID - S1465-3249(17)30005-1 [pii] LID - 10.1016/j.jcyt.2017.01.003 [doi] AB - BACKGROUND AIMS: Tracking cells during regenerative cytotherapy is crucial for monitoring their safety and efficacy. Macrophages are an emerging cell-based regenerative therapy for liver disease and can be readily labeled for medical imaging. A reliable, clinically applicable cell-tracking agent would be a powerful tool to study cell biodistribution. METHODS: Using a recently described chemical design, we set out to functionalize, optimize and characterize a new set of superparamagnetic iron oxide nanoparticles (SPIONs) to efficiently label macrophages for magnetic resonance imaging-based cell tracking in vivo. RESULTS: A series of cell health and iron uptake assays determined that positively charged SPIONs (+16.8 mV) could safely label macrophages more efficiently than the formerly approved ferumoxide (-6.7 mV; Endorem) and at least 10 times more efficiently than the clinically approved SPION ferumoxytol (-24.2 mV; Rienso). An optimal labeling time of 4 h at 25 microg/mL was demonstrated to label macrophages of mouse and human origin without any adverse effects on cell viability whilst providing substantial iron uptake (>5 pg Fe/cell) that was retained for 7 days in vitro. SPION labeling caused no significant reduction in phagocytic activity and a shift toward a reversible M1-like phenotype in bone marrow-derived macrophages (BMDMs). Finally, we show that SPION-labeled BMDMs delivered via the hepatic portal vein to mice are localized in the hepatic parenchyma resulting in a 50% drop in T2* in the liver. Engraftment of exogenous cells was confirmed via immunohistochemistry up to 3 weeks posttransplantation. DISCUSSION: A positively charged dextran-coated SPION is a promising tool to noninvasively track hepatic macrophage localization for therapeutic monitoring. CI - Copyright (c) 2017 International Society for Cellular Therapy. Published by Elsevier Inc. All rights reserved. FAU - Sharkey, Jack AU - Sharkey J AD - Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom; UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom. FAU - Starkey Lewis, Philip J AU - Starkey Lewis PJ AD - UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom; MRC Centre for Regenerative Medicine, Little France Drive, University of Edinburgh, Edinburgh, United Kingdom. FAU - Barrow, Michael AU - Barrow M AD - UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom; Department of Chemistry, University of Liverpool, Liverpool, United Kingdom. FAU - Alwahsh, Salamah M AU - Alwahsh SM AD - MRC Centre for Regenerative Medicine, Little France Drive, University of Edinburgh, Edinburgh, United Kingdom. FAU - Noble, June AU - Noble J AD - Cardiovascular Sciences, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom. FAU - Livingstone, Eilidh AU - Livingstone E AD - MRC Centre for Regenerative Medicine, Little France Drive, University of Edinburgh, Edinburgh, United Kingdom. FAU - Lennen, Ross J AU - Lennen RJ AD - Edinburgh Preclinical Imaging, University of Edinburgh, Edinburgh, United Kingdom. FAU - Jansen, Maurits A AU - Jansen MA AD - Edinburgh Preclinical Imaging, University of Edinburgh, Edinburgh, United Kingdom. FAU - Carrion, Jaime Garcia AU - Carrion JG AD - Department of Chemistry, University of Liverpool, Liverpool, United Kingdom. FAU - Liptrott, Neill AU - Liptrott N AD - MRC Centre for Drug Safety Science, Ashton Street, University of Liverpool, Liverpool, United Kingdom; European Nanomedicine Characterisation Laboratory (EU-NCL), Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom. FAU - Forbes, Shareen AU - Forbes S AD - Cardiovascular Sciences, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom. FAU - Adams, Dave J AU - Adams DJ AD - UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom; Department of Chemistry, University of Liverpool, Liverpool, United Kingdom. FAU - Chadwick, Amy E AU - Chadwick AE AD - UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom; MRC Centre for Drug Safety Science, Ashton Street, University of Liverpool, Liverpool, United Kingdom. FAU - Forbes, Stuart J AU - Forbes SJ AD - UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom; MRC Centre for Regenerative Medicine, Little France Drive, University of Edinburgh, Edinburgh, United Kingdom. FAU - Murray, Patricia AU - Murray P AD - Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom; UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom. FAU - Rosseinsky, Matthew J AU - Rosseinsky MJ AD - UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom; Department of Chemistry, University of Liverpool, Liverpool, United Kingdom. FAU - Goldring, Christopher E AU - Goldring CE AD - UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom; MRC Centre for Drug Safety Science, Ashton Street, University of Liverpool, Liverpool, United Kingdom. Electronic address: chrissy@liverpool.ac.uk. FAU - Park, B Kevin AU - Park BK AD - UK Regenerative Medicine Platform Safety and Efficacy Hub, United Kingdom; MRC Centre for Drug Safety Science, Ashton Street, University of Liverpool, Liverpool, United Kingdom. LA - eng GR - MR/K017047/1/MRC_/Medical Research Council/United Kingdom GR - MR/K026739/1/MRC_/Medical Research Council/United Kingdom GR - MR/L012707/1/MRC_/Medical Research Council/United Kingdom PT - Journal Article DEP - 20170215 PL - England TA - Cytotherapy JT - Cytotherapy JID - 100895309 RN - 0 (Dextrans) RN - 0 (Magnetite Nanoparticles) RN - E1UOL152H7 (Iron) RN - G6N3J05W84 (ferumoxides) RN - XM0M87F357 (Ferrosoferric Oxide) SB - IM MH - Animals MH - Bone Marrow Cells/cytology/metabolism MH - Bone Marrow Transplantation/methods MH - Cell Survival MH - Cell Tracking/*methods MH - Cells, Cultured MH - Dextrans/*chemistry/pharmacokinetics MH - Ferrosoferric Oxide/chemistry/pharmacokinetics MH - Humans MH - Iron/*metabolism MH - Liver Cirrhosis/therapy MH - Macrophages/*cytology/*metabolism MH - Magnetic Resonance Imaging/*methods MH - Magnetite Nanoparticles/*chemistry MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Tissue Distribution PMC - PMC5357746 OTO - NOTNLM OT - MRI OT - cell therapy OT - cell tracking OT - liver fibrosis OT - macrophage EDAT- 2017/02/19 06:00 MHDA- 2017/08/03 06:00 PMCR- 2017/04/01 CRDT- 2017/02/19 06:00 PHST- 2016/06/30 00:00 [received] PHST- 2016/12/01 00:00 [revised] PHST- 2017/01/02 00:00 [accepted] PHST- 2017/02/19 06:00 [pubmed] PHST- 2017/08/03 06:00 [medline] PHST- 2017/02/19 06:00 [entrez] PHST- 2017/04/01 00:00 [pmc-release] AID - S1465-3249(17)30005-1 [pii] AID - 10.1016/j.jcyt.2017.01.003 [doi] PST - ppublish SO - Cytotherapy. 2017 Apr;19(4):555-569. doi: 10.1016/j.jcyt.2017.01.003. Epub 2017 Feb 15.