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Ferumoxytol Labeling of Human Neural Progenitor Cells for Diagnostic Cellular Tracking in the Porcine Spinal Cord with Magnetic Resonance Imaging.


ABSTRACT: We report on the diagnostic capability of magnetic resonance imaging (MRI)-based tracking of ferumoxytol-labeled human neural progenitor cells (hNPCs) transplanted into the porcine spinal cord. hNPCs prelabeled with two doses of ferumoxytol nanoparticles (hNPC-FLow and hNPC-FHigh ) were injected into the ventral horn of the spinal cord in healthy minipigs. Ferumoxytol-labeled grafts were tracked in vivo up to 105 days after transplantation with MRI. Injection accuracy was assessed in vivo at day 14 and was predictive of "on" or "off" target cell graft location assessed by histology. No difference in long-term cell survival, assessed by quantitative stereology, was observed among hNPC-FLow , hNPC-FHigh , or control grafts. Histological iron colocalized with MRI signal and engrafted human nuclei. Furthermore, the ferumoxytol-labeled cells retained nanoparticles and function in vivo. This approach represents an important leap forward toward facilitating translation of cell-tracking technologies to clinical trials by providing a method of assessing transplantation accuracy, delivered dose, and potentially cell survival. Stem Cells Translational Medicine 2017;6:139-150.

SUBMITTER: Lamanna JJ 

PROVIDER: S-EPMC5442757 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature

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Ferumoxytol Labeling of Human Neural Progenitor Cells for Diagnostic Cellular Tracking in the Porcine Spinal Cord with Magnetic Resonance Imaging.

Lamanna Jason J JJ   Gutierrez Juanmarco J   Urquia Lindsey N LN   Hurtig C Victor CV   Amador Elman E   Grin Natalia N   Svendsen Clive N CN   Federici Thais T   Oshinski John N JN   Boulis Nicholas M NM  

Stem cells translational medicine 20160829 1


We report on the diagnostic capability of magnetic resonance imaging (MRI)-based tracking of ferumoxytol-labeled human neural progenitor cells (hNPCs) transplanted into the porcine spinal cord. hNPCs prelabeled with two doses of ferumoxytol nanoparticles (hNPC-F<sup>Low</sup> and hNPC-F<sup>High</sup> ) were injected into the ventral horn of the spinal cord in healthy minipigs. Ferumoxytol-labeled grafts were tracked in vivo up to 105 days after transplantation with MRI. Injection accuracy was a  ...[more]

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