PRRT2 Mutant Leads to Dysfunction of Glutamate Signaling.
PRRT2 Mutant Leads to Dysfunction of Glutamate Signaling.
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PRRT2 突变导致谷氨酸信号传导功能障碍
DOI:
10.3390/ijms16059134
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发表时间:
2015-04-23
影响因子:
5.6
通讯作者:
Liu Y
中科院分区:
文献类型:
--
作者:
Li M;Niu F;Zhu X;Wu X;Shen N;Peng X;Liu Y
Paroxysmal kinesigenic choreoathetosis (PKC) is an inherited disease of the nervous system. We previously identified PRRT2 as the causative gene of PKC. However, as little is known about the function of PRRT2, elucidating its function will benefit not only PKC studies, but also many other related disorders. Here, we reveal higher levels of glutamate in the plasma of PKC patients and the culture medium of neurons following knock-out Prrt2 expression. Using double immunostaining assays we confirm Prrt2 is located at the glutamatergic neurons in accordance with its function. Our co-immunoprecipitation assays reveal mutant PRRT2 interferes with SNAP25 and GRIA1 interactions, respectively. Furthermore, using live-labeling techniques, we confirmed co-transfection with mutant PRRT2 caused an increase in GRIA1 distribution on the cell surface. Therefore, our results suggest that mutant PRRT2, probably through its weakened interaction with SNAP25, affects glutamate signaling and glutamate receptor activity, resulting in the increase of glutamate release and subsequent neuronal hyperexcitability.
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影响因子:
5.6
作者:
He ZW;Qu J;Zhang Y;Mao CX;Wang ZB;Mao XY;Deng ZY;Zhou BT;Yin JY;Long HY;Xiao B;Zhang Y;Zhou HH;Liu ZQ
通讯作者:
Liu ZQ
影响因子:
9.9
作者:
FERRARI, MD;ODINK, J;BRUYN, GW
通讯作者:
BRUYN, GW
影响因子:
30.8
作者:
Chen, Wan-Jin;Lin, Yu;Wu, Zhi-Ying
通讯作者:
Wu, Zhi-Ying
影响因子:
16.2
作者:
Kalashnikova, Evgenia;Lorca, Ramon A.;Kaur, Inderpreet;Barisone, Gustavo A.;Li, Bonnie;Ishimaru, Tatsuto;Trimmer, James S.;Mohapatra, Durga P.;Diaz, Elva
通讯作者:
Diaz, Elva
影响因子:
5.1
作者:
HAGLID, KG;WANG, S;HAMBERGER, A
通讯作者:
HAMBERGER, A