Liposome-encapsulated superoxide dismutase mimetic: theranostic potential of an MR detectable and neuroprotective agent.
Liposome-encapsulated superoxide dismutase mimetic: theranostic potential of an MR detectable and neuroprotective agent.
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脂质体封装的超氧化物歧化酶模拟物:MR 可检测和神经保护剂的治疗诊断潜力。
DOI:
10.1002/cmmi.1559
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发表时间:
2014
影响因子:
--
通讯作者:
BogdanovJr,Alexei
中科院分区:
文献类型:
--
作者:
Shazeeb,MohammedSalman;Feula,Giancarlo;BogdanovJr,Alexei
Endogenous manganese based superoxide dismutase (Mn–SOD) provides the primary defense against excess production of potentially toxic superoxide anion (O2–). M40401 is a synthetic enzyme mimetic that has a catalytic activity rate exceeding that of the native SOD enzymes. The presence of a paramagnetic Mn(II) cation in M40401 suggests that the delivery and spatial distribution of this enzyme mimeticin vivomay be directly detectible using magnetic resonance imaging (MRI); however, the cardiotoxicity of Mn(II) severely limits the use of free M40401 in living systems. To deliver M40401in vivoin amounts sufficient for MRI detection and to limit potential cardiotoxicity, we encapsulated M40401 into 170 nm liposomes composed of phosphatidylcholine and PEGylated phosphatidylethanolamine to achieve extended circulation in the bloodstream. The obtained liposomes efficiently catalyzed superoxide dismutationin vitro. Using 3 T MRI we investigated the biokinetics of liposome‐encapsulated M40401 in mice and found that, in addition to catalyzing superoxide dismutationin vitro, M40401 caused differential and region‐specific enhancement of mouse brain after systemic administration. Thus, liposome encapsulated M40401 is an ideal candidate for development as a theranostic compound useful for simultaneous MRI‐mediated tracking of delivery as well as for neuroprotective treatment of ischemic brain. Copyright © 2014 John Wiley & Sons, Ltd.
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影响因子:
4.6
作者:
Wang, Sen;Westmoreland, T. David
通讯作者:
Westmoreland, T. David
DOI:
10.1021/js980454i
发表时间:
1999
期刊:
Journal of pharmaceutical sciences.
影响因子:
--
作者:
Zhou,R;Balasubramanian,SV;Kahl,SB;Straubinger,RM
通讯作者:
Straubinger,RM
影响因子:
6.7
作者:
L. Elst;J. Colet;Robert N Muller
通讯作者:
Robert N Muller
影响因子:
6.7
作者:
E. Unger;D. Shen;T. Fritz;G. Wu;B. Kulik;T. New;T. Matsunaga;R. Ramaswami
通讯作者:
R. Ramaswami
影响因子:
4.4
作者:
E. Unger;D. Shen;T. Fritz
通讯作者:
T. Fritz