Cited by 274Characterization and Applications of Magnetic NanoparticlesAdvanced MRI Techniques and ApplicationsGeomagnetism and Paleomagnetism Studies

Magnetic Particle Imaging tracks the long-term fate of in vivo neural cell implants with high image contrast

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Zheng, Bo, Vazin, Tandis, Goodwill, Patrick W., Conway, Anthony, Verma, Aradhana, Ulku Saritas, Emine, Schaffer, David, Conolly, Steven M.·2015·Scientific Reports

Abstract

We demonstrate that Magnetic Particle Imaging (MPI) enables monitoring of cellular grafts with high contrast, sensitivity, and quantitativeness. MPI directly detects the intense magnetization of iron-oxide tracers using low-frequency magnetic fields. MPI is safe, noninvasive and offers superb sensitivity, with great promise for clinical translation and quantitative single-cell tracking. Here we report the first MPI cell tracking study, showing 200-cell detection in vitro and in vivo monitoring of human neural graft clearance over 87 days in rat brain.

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  • In the same study, when ferucarbotran-labeled NPC were injected near the lateral ventricle, an additional signal caudal/posterior to the injection site appeared, indicating gradual clearance of the labeled cells through the ventricle.

    “For the other control group, an additional signal caudal/posterior to the injection site appeared, indicating gradual clearance of the labeled cells through the ventricle.”
  • In the same study, when only ferucarbotran was injected into the forebrain, the MPI signal was not detectable for a prolonged period, indicating low retention of ferucarbotran itself in the brain.

    “In case of the former, the MPI signal was not detectable for a prolonged period of time, indicating low retention of ferucarbotran itself in the brain.”
  • In a study, ferucarbotran-labeled neuronal progenitor cells implanted in rat forebrain with ischemia could be sensitively and specifically detected with MPI for up to 87 days.

    “After injection, the cells could be sensitively and specifically detected with MPI for up to 87 days.”

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Authors
Zheng, B., Vazin, T., Goodwill, P. W., Conway, A., Verma, A., Ulku Saritas, E., Schaffer, D., & Conolly, S. M.
Affiliations
University of California, Berkeley (US)
Corresponding author
Zheng, Bo
Venue
Scientific Reports
Published
2015-09-11
Volume
5
Issue
1
Pages
14055-14055
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2418720770
Cited by
274
References
40
Citations by year
2026: 15 · 2025: 21 · 2024: 16 · 2023: 23 · 2022: 29 · 2021: 35 · 2020: 31 · 2019: 30 · 2018: 26 · 2017: 35 · 2016: 12 · 2015: 1
FWCI
12.25
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • National Science Foundation (1106400)
  • W. M. Keck Foundation (009323)
  • ACT Government
  • Siebel Scholars Foundation
  • National Institutes of Health (DGE 1106400, 009323, NIH-R01)
  • National Institute of Mental Health (R24MH106053)
  • National Institute of Biomedical Imaging and Bioengineering (R01EB019458, R01EB013689)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Characterization and Applications of Magnetic Nanoparticles
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Geomagnetism and Paleomagnetism Studies
Keywords
magnetic particle imaging, cell tracking, long-term monitoring, single-cell tracking, non-invasive imaging, rat brain
MeSH terms
Animals, Cell Differentiation, Female, Humans, Iron, Magnetic Resonance Imaging, Sensitivity and Specificity, Staining and Labeling, Reproducibility of Results, Rats, Embryonic Stem Cells, Magnetite Nanoparticles, Cell Tracking

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