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Abstract #1938

Quantification of the engraftment status of mesenchymal stem cells in glioma using dual-modality MRI and BLI

Yunhua Li1, Yingmei Tang1, Minghui Cao1, and Jun Shen1
1Department of Radiology, Sun Yat-Sen University, Sun Yat-Sen Memorial Hospital, Guangzhou, China

Synopsis

Keywords: Small Animals, Cell Tracking & Reporter Genes, mesenchymal stem cells, magnetic resonance imaging, bioluminescence imaging, reporter gene, malignant glioma

Motivation: The engraftment status of MSCs in glioma after transplantation via different administration routes remains unclear due to the lack of quantitative analysis.

Goal(s): This study aimed to quantify the engraftment of MSCs in glioma after administration via different routes using noninvasive dual-modality MRI and BLI.

Approach: FTH and FLUC reporter genes-overexpressed MSCs (FTH-FLUC-MSCs) was constructed. MRI and BLI were performed to monitor FTH-FLUC-MSCs in vivo.

Results: Based on quantifying by the optical signal intensity of BLI, peritumoral injection delivered a remarkable proportion of FTH-FLUC-MSCs arrived in the glioma, and a higher quantity of peritumorally injected FTH-FLUC-MSCs retained within the tumor site.

Impact: FTH and FLUC reporter genes-based MRI and BLI are practical tools for noninvasively monitoring the engraftment of MSCs in vivo. Peritumoral delivery of FTH-FLUC-MSCs offers robust engraftment and could be used as the optimal delivery route for treating malignant glioma.

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