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Multinuclear MRI Reveals Early Efficacy of Stem Cell Therapy in Stroke
Transl Stroke Res. 2022 Jul 28. doi: 10.1007/s12975-022-01057-w. Online ahead of print.ABSTRACTCompromised adult human mesenchymal stem cells (hMSC) can impair cell therapy efficacy and further reverse ischemic recovery. However, in vitro assays require extended passage to characterize cells, limiting rapid assessment for therapeutic potency. Multinuclear magnetic resonance imaging and spectroscopy (MRI/S) provides near real-time feedback on disease progression and tissue recovery. Applied to ischemic stroke, 23Na MRI evaluates treatment efficacy within 24 h after middle cerebral artery occlusion, showing recovery of sodiu...
Source: Cell Research - July 28, 2022 Category: Cytology Authors: Shannon Helsper Xuegang Yuan F Andrew Bagdasarian Jacob Athey Yan Li Cesario V Borlongan Samuel C Grant Source Type: research

Extended Ischemic Recovery After Implantation of Human Mesenchymal Stem Cell Aggregates Indicated by Sodium MRI at 21.1 T
Transl Stroke Res. 2022 Feb 7. doi: 10.1007/s12975-021-00976-4. Online ahead of print.ABSTRACTExtended therapeutic application remains a significant issue in the use of stem cell therapies to treat ischemic stroke. Along these lines, neurological recovery in a rodent model of ischemic stroke was evaluated following implantation of human mesenchymal stem cell aggregates (hMSC-agg), labeled with micron-sized particles of iron oxide, directly into the lateral ventricle contralateral to the ischemic lesion hemisphere. Longitudinally, disease progression and response to hMSC-agg therapy were assessed by 1H and 23Na magnetic res...
Source: Cell Research - February 8, 2022 Category: Cytology Authors: Shannon Helsper F Andrew Bagdasarian Xuegang Yuan Kaya Xu Jea-Young Lee Jens T Rosenberg Cesario V Borlongan Teng Ma Samuel C Grant Source Type: research