The CAMKK2-AMPK kinase pathway mediates the synaptotoxic effects of Aβ oligomers through Tau phosphorylation.
The CAMKK2-AMPK kinase pathway mediates the synaptotoxic effects of Aβ oligomers through Tau phosphorylation.
复制标题
DOI:
10.1016/j.neuron.2013.02.003
复制
发表时间:
2013-04-10
期刊:
影响因子:
16.2
通讯作者:
Polleux F
中科院分区:
文献类型:
--
作者:
Mairet-Coello G;Courchet J;Pieraut S;Courchet V;Maximov A;Polleux F
Amyloid-β 1–42 (Aβ42) oligomers are synaptotoxic for excitatory cortical and hippocampal neurons and might play a role in early stages of Alzheimer's disease (AD) progression. Recent results suggested that Aβ42 oligomers trigger activation of AMP-activated kinase (AMPK), and its activation is increased in the brain of patients with AD. We show that increased intracellular calcium [Ca2+]i induced by NMDA receptor activation or membrane depolarization activates AMPK in a CAMKK2-dependent manner. CAMKK2 or AMPK overactivation is sufficient to induce dendritic spine loss. Conversely, inhibiting their activity protects hippocampal neurons against synaptotoxic effects of Aβ42 oligomers in vitro and against the loss of dendritic spines observed in the human APPSWE,IND-expressing transgenic mouse model in vivo. AMPK phosphory-lates Tau on KxGS motif S262, and expression of Tau S262A inhibits the synaptotoxic effects of Aβ42 oligomers. Our results identify a CAMKK2-AMPK-Tau pathway as a critical mediator of the synaptotoxic effects of Aβ42 oligomers.
登录
查看更多内容
DOI:
10.1042/bj20091372
发表时间:
2010-01-27
期刊:
The Biochemical journal
影响因子:
--
作者:
Fogarty S;Hawley SA;Green KA;Saner N;Mustard KJ;Hardie DG
通讯作者:
Hardie DG
影响因子:
--
作者:
Hawley SA;Boudeau J;Reid JL;Mustard KJ;Udd L;Mäkelä TP;Alessi DR;Hardie DG
通讯作者:
Hardie DG
影响因子:
16.2
作者:
Hoover, Brian R.;Reed, Miranda N.;Su, Jianjun;Penrod, Rachel D.;Kotilinek, Linda A.;Grant, Marianne K.;Pitstick, Rose;Carlson, George A.;Lanier, Lorene M.;Yuan, Li-Lian;Ashe, Karen H.;Liao, Dezhi
通讯作者:
Liao, Dezhi
影响因子:
4.8
作者:
De Felice, Fernanda G.;Velasco, Pauline T.;Klein, William L.
通讯作者:
Klein, William L.
影响因子:
64.8
作者:
Eroglu, Cagla;Barres, Ben A.
通讯作者:
Barres, Ben A.