Pharmacologic IRE1/XBP1s activation confers targeted ER proteostasis reprogramming.
Pharmacologic IRE1/XBP1s activation confers targeted ER proteostasis reprogramming.
复制标题
IRE1/XBP1s的药理激活赋予靶向内质网蛋白稳态重编程。
DOI:
10.1038/s41589-020-0584-z
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发表时间:
2020-10
影响因子:
14.8
通讯作者:
Wiseman RL
中科院分区:
文献类型:
--
作者:
Grandjean JMD;Madhavan A;Cech L;Seguinot BO;Paxman RJ;Smith E;Scampavia L;Powers ET;Cooley CB;Plate L;Spicer TP;Kelly JW;Wiseman RL
Activation of the IRE1/XBP1s signaling arm of the unfolded protein response (UPR) is a promising strategy to correct defects in endoplasmic reticulum (ER) proteostasis implicated in diverse diseases. However, no pharmacologic activators of this pathway identified to date are suitable for ER proteostasis remodeling through selective activation of IRE1/XBP1s signaling. Here, we use high-throughput screening to identify non-toxic compounds that induce ER proteostasis remodeling through IRE1/XBP1s activation. We employ transcriptional profiling to stringently confirm that our prioritized compounds selectively activate IRE1/XBP1s signaling without activating other cellular stress-responsive signaling pathways. Furthermore, we demonstrate that our compounds improve ER proteostasis of destabilized variants of amyloid precursor protein (APP) through an IRE1-dependent mechanism and reduce APP-associated mitochondrial toxicity in cellular models. These results establish highly selective IRE1/XBP1s activating compounds that can be widely employed to define the functional importance of IRE1/XBP1s activity for ER proteostasis regulation in the context of health and disease.
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影响因子:
7.7
作者:
Mendez AS;Alfaro J;Morales-Soto MA;Dar AC;McCullagh E;Gotthardt K;Li H;Acosta-Alvear D;Sidrauski C;Korennykh AV;Bernales S;Shokat KM;Walter P
通讯作者:
Walter P
影响因子:
21.3
作者:
通讯作者:
--
DOI:
10.15252/embj.201796797
发表时间:
2017-11-15
期刊:
The EMBO journal
影响因子:
--
作者:
Pera M;Larrea D;Guardia-Laguarta C;Montesinos J;Velasco KR;Agrawal RR;Xu Y;Chan RB;Di Paolo G;Mehler MF;Perumal GS;Macaluso FP;Freyberg ZZ;Acin-Perez R;Enriquez JA;Schon EA;Area-Gomez E
通讯作者:
Area-Gomez E
影响因子:
82.9
作者:
Iwawaki, T;Akai, R;Miura, M
通讯作者:
Miura, M
影响因子:
4
作者:
Krako, Nina;Magnifico, Maria Chiara;Cattaneo, Antonino
通讯作者:
Cattaneo, Antonino