Details:

Alternative Title:
Ann Biomed Eng
Publisher's site:
http://dx.doi.org/10.1007/s10439-015-1514-1
Personal Author:
Addington, Caroline P. ; Cusick, Alex ; Shankar, Rohini Vidya ; Agarwal, Shubhangi ; Stabenfeldt, Sarah E. ; ... More +
Addington, Caroline P. ; Cusick, Alex ; Shankar, Rohini Vidya ; Agarwal, Shubhangi ; Stabenfeldt, Sarah E. ; Kodibagkar, Vikram D. Less -
Description:
Cell therapy represents a promising therapeutic for a myriad of medical conditions, including cancer, traumatic brain injury, and cardiovascular disease among others. A thorough understanding of the efficacy and cellular dynamics of these therapies necessitates the ability to non-invasively track cells in vivo. Magnetic resonance imaging (MRI) provides a platform to track cells as a non-invasive modality with superior resolution and soft tissue contrast. We recently reported a new nanoprobe platform for cell labeling and imaging using fluorophore doped siloxane core nanoemulsions as dual modality ((1)H MRI/Fluorescence), dual-functional (oximetry/detection) nanoprobes. Here, we successfully demonstrate the labeling, dual-modality imaging, and oximetry of neural progenitor/stem cells (NPSCs) in vitro using this platform. Labeling at a concentration of 10 μL/10(4) cells with a 40%v/v polydimethylsiloxane core nanoemulsion, doped with rhodamine, had minimal effect on viability, no effect on migration, proliferation and differentiation of NPSCs and allowed for unambiguous visualization of labeled NPSCs by (1)H MR and fluorescence and local pO2 reporting by labeled NPSCs. This new approach for cell labeling with a positive contrast (1)H MR probe has the potential to improve mechanistic knowledge of current therapies, and guide the design of future cell therapies due to its clinical translatability.
Subject:
[+]
Animals
Article
Cell-labeling
Cell Differentiation
Cell Movement
Cell Proliferation
Cell Tracking
Dual-modality Imaging
Fluorescence
Fluorescent Dyes
Mice
Molecular Imaging
MR Oximetry
Nanoemulsions
Nanoparticles
Neural Progenitor/stem Cells
Neural Stem Cells
Polymethyldisiloxane
Rhodamine
Siloxanes
Staining And Labeling

Source:
Ann Biomed Eng. 44(3):816-827.
Pubmed ID:
26597417
Pubmed Central ID:
PMC4792673
Document Type:
Journal Article
Funding:
DP2 HD084067/HD/NICHD NIH HHS/United States ; 1DP2HD084067/DP/NCCDPHP CDC HHS/United States
DP2 HD084067/HD/NICHD NIH HHS/United States ; 1DP2HD084067/DP/NCCDPHP CDC HHS/United States Less -
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:a0a01085d21ea551876e6e363e976df05294b784078732171abf62d930b04761
File Type:

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