Magnetic resonance imaging of stem cell apoptosis in arthritic joints with a caspase activatable contrast agent.
Magnetic resonance imaging of stem cell apoptosis in arthritic joints with a caspase activatable contrast agent.
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DOI:
10.1021/nn504494c
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发表时间:
2015-02-24
期刊:
影响因子:
17.1
通讯作者:
Daldrup-Link, Heike
中科院分区:
文献类型:
--
作者:
Nejadnik, Hossein;Ye, Deju;Lenkov, Olga D.;Donig, Jessica S.;Martin, John E.;Castillo, Rostislav;Derugin, Nikita;Sennino, Barbara;Rao, Jianghong;Daldrup-Link, Heike
About 43 million individuals in the U.S. encounter cartilage injuries due to trauma or osteoarthritis, leading to joint pain and functional disability. Matrix associated stem cell implants (MASI) represent a promising approach for repair of cartilage defects. However, limited survival of MASI creates a significant bottleneck for successful cartilage regeneration outcomes and functional reconstitution. We report a new approach for non-invasive detection of stem cell apoptosis with MR imaging, based on a caspase-3 sensitive nano-aggregation MRI probe (C-SNAM). C-SNAM self-assembles into nanoparticles after hydrolysis by caspase-3, leading to 90% amplification of 1H MR and prolonged in vivo retention. Following intra-articular injection, C-SNAM causes significant MR signal enhancement in apoptotic MASI compared to viable MASI. Our results indicate that C-SNAM functions as an imaging biomarker for stem cell apoptosis in MASI. This concept could be applied to a broad range of cell transplants and target sites.
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影响因子:
--
作者:
Jurgens, Wouter J. F. M.;Kroeze, Robert Jan;Helder, Marco N.
通讯作者:
Helder, Marco N.
DOI:
10.1302/0301-620x.92b1.21530
发表时间:
2010-01-01
影响因子:
--
作者:
Daniel, J.;Ziaee, H.;McMinn, D. J. W.
通讯作者:
McMinn, D. J. W.
影响因子:
2.8
作者:
Henning, Tobias D.;Gawande, Rakhee;Daldrup-Link, Heike E.
通讯作者:
Daldrup-Link, Heike E.
影响因子:
3.1
作者:
Boddington, Sophie E.;Sutton, Elizabeth J.;Daldrup-Link, Heike E.
通讯作者:
Daldrup-Link, Heike E.
影响因子:
3.3
作者:
Henning, Tobias D.;Wendland, Michael F.;Golovko, Daniel;Sutton, Elizabeth J.;Sennino, Barbara;Malek, Farbod;Bauer, Jan S.;McDonald, Donald M.;Daldrup-Link, Heike
通讯作者:
Daldrup-Link, Heike