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Title: Noninvasive evaluation of immunosuppressive drug efficacy on acute donor cell survival
Authors: Gheysens, Olivier ×
Lin, Shuan
Cao, Feng
Wang, Dongxu
Chen, Ian Y
Rodriguez-Porcel, Martin
Min, Jung J
Gambhir, Sanjiv S
Wu, Joseph C #
Issue Date: May-2006
Publisher: Elsevier Science
Series Title: Molecular Imaging and Biology vol:8 issue:3 pages:163-170
Abstract: PURPOSE: The therapeutic benefits of cell transplantation may depend on the survival of sufficient numbers of grafted cells. We evaluate four potent immunosuppressive medications aimed at preventing acute donor cell death. PROCEDURES AND RESULTS: Embryonic rat H9c2 myoblasts were stably transduced to express firefly luciferase reporter gene (H9c2-Fluc). H9c2-Fluc cells (3x10(6)) were injected into thigh muscles of Sprague-Dawley rats (N=30) treated with cyclosporine, dexamethasone, mycophenolate mofetil, tacrolimus, or saline from day -3 to day +14. Longitudinal optical bioluminescence imaging was performed over two weeks. Fluc activity was 40.0+/-12.1% (dexamethasone), 30.5+/-12.5% (tacrolimus), and 21.5+/-3.5% (mycophenolate) vs. 12.0+/-5.0% (control) and 8.3+/-5.0% (cyclosporine) at day 4 (P<0.05). However, by day 14, cell signals had decreased drastically to <10% for all groups despite drug therapy. CONCLUSION: This study demonstrates the ability of optical molecular imaging for tracking cell survival noninvasively and raises important questions with regard to the overall efficacy of immunosuppressives for prolonging transplanted cell survival.
URI: 
ISSN: 1536-1632
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear Medicine & Molecular Imaging
× corresponding author
# (joint) last author

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