Evaluation of cell transplant-mediated attenuation of diffuse injury in experimental autoimmune encephalomyelitis using onVDMP CEST MRI

The development and translation of cell therapies have been hindered by an inability to predict and evaluate their efficacy after transplantation. Using an experimental autoimmune encephalomyelitis (EAE) mouse model of multiple sclerosis (MS), we studied attenuation of the diffuse injury characteris...

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Bibliographic Details
Published in:Experimental neurology 2020-07, Vol.329, p.113316-113316, Article 113316
Main Authors: Thomas, A.M., Li, S., Chu, C., Shats, I., Xu, J., Calabresi, P.A., van Zijl, P.C.M., Walczak, P., Bulte, J.W.M.
Format: Article
Language:English
Subjects:
Animals
Bioluminescence imaging
Cell Transplantation - methods
Chemical exchange saturation transfer
Encephalomyelitis, Autoimmune, Experimental - diagnostic imaging
Encephalomyelitis, Autoimmune, Experimental - metabolism
Encephalomyelitis, Autoimmune, Experimental - therapy
Glial-restricted precursor cells
Luminescent Measurements - methods
Magnetic resonance imaging
Magnetic Resonance Imaging - methods
Mice
Mice, Transgenic
Multiple sclerosis
Neuroglia - metabolism
Neuroglia - transplantation
Transplantation
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Summary:The development and translation of cell therapies have been hindered by an inability to predict and evaluate their efficacy after transplantation. Using an experimental autoimmune encephalomyelitis (EAE) mouse model of multiple sclerosis (MS), we studied attenuation of the diffuse injury characteristic of EAE and MS by transplanted glial-restricted precursor cells (GRPs). We assessed the potential of on-resonance variable delay multiple pulse (onVDMP) chemical exchange saturation transfer (CEST) MRI to visualize this attenuation. Allogeneic GRPs transplanted in the motor cortex or lateral ventricles attenuated paralysis in EAE mice and attenuated differences compared to naïve mice in onVDMP CEST signal 5 days after transplantation near the transplantation site. Histological analysis revealed that transplanted GRPs co-localized with attenuated astrogliosis. Hence, diffuse injury-sensitive onVDMP CEST MRI may complement conventional MRI to locate and monitor tissue regions responsive to GRP therapy. •onVDMP CEST MRI signal changes in the brain as paralysis progresses•Stem cell transplantation in the motor cortex attenuates paralysis•onVDMP CEST MRI locates brain regions responsive to transplanted cell therapy
ISSN:0014-4886
1090-2430
DOI:10.1016/j.expneurol.2020.113316