Circulating neprilysin clears brain amyloid.
Circulating neprilysin clears brain amyloid.
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DOI:
10.1016/j.mcn.2010.05.014
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发表时间:
2010-10
影响因子:
3.5
通讯作者:
Hersh, Louis B.
中科院分区:
文献类型:
--
作者:
Liu, Yinxing;Studzinski, Christa;Beckett, Tina;Murphy, M. Paul;Klein, Ronald L.;Hersh, Louis B.
The use of the peptidase neprilysin (NEP) as a therapeutic for lowering brain amyloid burden is receiving increasing attention. We have previously demonstrated that peripheral expression of NEP on the surface of hindlimb muscle lowers brain amyloid burden in a transgenic mouse model of Alzheimer’s disease. In this study we now show that using adeno-associated virus expressing a soluble secreted form of NEP (secNEP-AAV8), NEP secreted into plasma is effective in clearing brain Aβ. Soluble NEP expression in plasma was sustained over the 3-month time period it was measured. Secreted NEP decreased plasma Aβ by 30%, soluble brain Aβ by ~28%, insoluble brain Aβ by ~55%, and Aβ oligomers by 12%. This secNEP did not change plasma levels of substance P or bradykinin, nor did it alter blood pressure. No NEP was detected in CSF, nor did the AAV virus produce brain expression of NEP. Thus the lowering of brain Aβ was due to plasma NEP which altered blood-brain Aβ transport dynamics. Expressing NEP in plasma provides a convenient way to monitor enzyme activity during the course of its therapeutic testing.
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DOI:
10.1523/jneurosci.2984-08.2009
发表时间:
2009-02-18
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Meilandt WJ;Cisse M;Ho K;Wu T;Esposito LA;Scearce-Levie K;Cheng IH;Yu GQ;Mucke L
通讯作者:
Mucke L
影响因子:
3
作者:
Liu, Yinxing;Guan, Hanjun;Hersh, Louis B.
通讯作者:
Hersh, Louis B.
影响因子:
2.9
作者:
LeVine, H
通讯作者:
LeVine, H
影响因子:
12.4
作者:
Kohlbrenner, E;Aslanidi, G;Zolotukhin, S
通讯作者:
Zolotukhin, S
影响因子:
6
作者:
El-Amouri, Salim S.;Zhu, Hong;Kindy, Mark S.
通讯作者:
Kindy, Mark S.