VAMP2-dependent exocytosis regulates plasma membrane insertion of TRPC3 channels and contributes to agonist-stimulated Ca2+ influx.
VAMP2-dependent exocytosis regulates plasma membrane insertion of TRPC3 channels and contributes to agonist-stimulated Ca2+ influx.
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VAMP2 依赖性胞吐作用调节 TRPC3 通道的质膜插入,并有助于激动剂刺激的 Ca2 流入。
DOI:
10.1016/j.molcel.2004.07.010
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发表时间:
2004
期刊:
影响因子:
16
通讯作者:
Ambudkar,InduS
中科院分区:
文献类型:
--
作者:
Singh,BrijB;Lockwich,TimothyP;Bandyopadhyay,BidhanC;Liu,Xibao;Bollimuntha,Sunitha;Brazer,So-Ching;Combs,Christian;Das,Sunit;Leenders,AGMiriam;Sheng,Zu-Hang;Knepper,MarkA;Ambudkar,SureshV;Ambudkar,InduS
The mechanism(s) involved in agonist-stimulation of TRPC3 channels is not yet known. Here we demonstrate that TRPC3-N terminus interacts with VAMP2 and αSNAP. Further, endogenous and exogenously expressed TRPC3 colocalized and coimmunoprecipitated with SNARE proteins in neuronal and epithelial cells. Imaging of GFP-TRPC3 revealed its localization in the plasma membrane region and in mobile intracellular vesicles. Recovery of TRPC3-GFP fluorescence after photobleaching of the plasma membrane region was decreased by brefeldin-A or BAPTA-AM. Cleavage of VAMP2 with tetanus toxin (TeNT) did not prevent delivery of TRPC3 to the plasma membrane region but reduced its surface expression. TeNT also decreased carbachol and OAG, but not thapsigargin, stimulated Ca2+influx. Importantly, carbachol, not thapsigargin, increased surface expression of TRPC3 that was attenuated by TeNT and not by BAPTA. In aggregate, these data suggest that VAMP2-dependent exocytosis regulates plasma membrane insertion of TRPC3 channels and contributes to carbachol-stimulation of Ca2+influx.
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影响因子:
4
作者:
Alderton, JM;Ahmed, SA;Steinhardt, RA
通讯作者:
Steinhardt, RA
影响因子:
4.7
作者:
M. Linial
通讯作者:
M. Linial
DOI:
10.1210/mend.16.5.0836
发表时间:
2002
期刊:
Molecular endocrinology (Baltimore, Md.)
影响因子:
--
作者:
Shigematsu,Satoshi;Khan,AhmirH;Kanzaki,Makoto;Pessin,JeffreyE
通讯作者:
Pessin,JeffreyE
影响因子:
64.8
作者:
Sheng, ZH;Rettig, J;Catterall, WA
通讯作者:
Catterall, WA
DOI:
10.1152/ajpcell.2000.278.3.c526
发表时间:
2000-03-01
影响因子:
5.5
作者:
Wu, XY;Babnigg, G;Villereal, ML
通讯作者:
Villereal, ML