| Literature DB >> 17583898 |
Balaji Sitharaman1, Lesa A Tran, Quynh P Pham, Robert D Bolskar, Raja Muthupillai, Scott D Flamm, Antonios G Mikos, Lon J Wilson.
Abstract
In this study, anionic gadofullerene {Gd@C60[C(COOH)2](10)} was used as an in vitro cellular magnetic resonance imaging label. The cellular uptake characteristics of this gadofullerene were significant and nonspecific, and excellent labeling efficiency (98-100%) was achieved without a transfecting agent. The average uptake was up to 133.6 +/- 5.5 pg Gd per cell or 10(11) Gd3+ ions per cell. The difference in the longitudinal relaxation time T(1) between labeled and unlabeled cells generated good contrast between labeled and unlabeled cells. A clinical magnetic resonance imaging imager at 1.5 T showed that signal intensity on the T(1) weighted magnetic resonance images was 250% greater in labeled cells. Thus, the anionic gadofullerene {Gd@C60[C(COOH)2](10)} is an attractive candidate for ex vivo labeling and noninvasive in vivo tracking of any mammalian cell via magnetic resonance imaging. (c) 2007 John Wiley & Sons, Ltd.Entities:
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Year: 2007 PMID： 17583898 DOI： 10.1002/cmmi.140
Source DB: PubMed Journal: Contrast Media Mol Imaging ISSN： 1555-4309 Impact factor: 3.161