Reflux of Endoplasmic Reticulum proteins to the cytosol yields inactivation of tumor suppressors
Reflux of Endoplasmic Reticulum proteins to the cytosol yields inactivation of tumor suppressors
复制标题
内质网蛋白回流至细胞质导致肿瘤抑制因子失活
DOI:
10.1101/2020.04.13.038935
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Sicari D
中科院分区:
文献类型:
--
作者:
Sicari D
In the past decades many studies reported Endoplasmic Reticulum (ER) resident proteins to localize to the cytosol but the mechanisms by which this occurs and whether these proteins exert cytosolic functions remain unknown. We found that select ER luminal proteins accumulate in the cytosol of glioblastoma cells isolated from mouse and human tumors. In cultured cells ER protein reflux to the cytosol occurs upon proteostasis perturbation. As such we investigated whether refluxed proteins gain new functions in the cytosol thus providing advantage to tumor cells. Using the ER luminal protein AGR2 as a model, we showed that it is refluxed to the cytosol where it binds and inhibits the tumor suppressor p53. We named this phenomenon ER to Cytosol Signaling (ERCYS) as an ER surveillance mechanism conserved in Eukaryotes to relieve the ER from its contents upon stress and to provide selective advantage to tumor cells through gain-of-cytosolic functions.
影响因子:
7.3
作者:
Shim, Sang Mi;Choi, Ha Rim;Kwon, Yong Tae
通讯作者:
Kwon, Yong Tae
影响因子:
9.8
作者:
Rutkowski DT;Arnold SM;Miller CN;Wu J;Li J;Gunnison KM;Mori K;Sadighi Akha AA;Raden D;Kaufman RJ
通讯作者:
Kaufman RJ
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
H. Lodish
通讯作者:
H. Lodish