Successful in vivo MRI tracking of MSCs labeled with Gadoteridol in a Spinal Cord Injury experimental model
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Date
2016-08
Publication Type
Journal Article, Journal Article
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no
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Abstract
In this study, murine Mesenchymal Stem Cells (MSCs) labeled with the clinically approved MRI agent Gadoteridol through a procedure based on the hypo-osmotic shock were successfully tracked in vivo in a murine model of Spinal Cord Injury (SCI). With respect to iso-osmotic incubations, the hypo-osmotic labeling significantly increased the Gd³⁺ cellular uptake, and enhanced both the longitudinal relaxivity (r₁) of the intracellular Gadoteridol and the Signal to Noise Ratio (SNR) measured on cell pellets, without altering the biological and functional profile of cells. A substantial T₁ Contrast Enhancement after local transplantation of 3.0 × 10⁵ labeled cells in SCI mice enabled to follow their migratory dynamics in vivo for about 10 days, and treated animals recovered from the motor impairment caused by the injury, indicating unaltered therapeutic efficacy. Finally, analytical and histological data corroborated the imaging results, highlighting the opportunity to perform a precise and reliable monitoring of the cell-based therapy.
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Publication status
published
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Journal / series
Volume
282
Pages / Article No.
66 - 77
Publisher
Elsevier
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Edition / version
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Date collected
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Subject
Magnetic Resonance Imaging; Spinal Cord Injury; Cell tracking; Hypotonic swelling; Mesenchymal Stem Cell
Organisational unit
02620 - Inst. f. Robotik u. Intelligente Systeme / Inst. Robotics and Intelligent Systems