New insights into the cellular temporal response to proteostatic stress

New insights into the cellular temporal response to proteostatic stress
Title:
New insights into the cellular temporal response to proteostatic stress
Other Titles:
eLife
Keywords:
Publication Date:
01 October 2018
Citation:
eLife 2018;7:e39054 DOI: 10.7554/eLife.39054
Abstract:
Maintaining a healthy proteome involves all layers of gene expression regulation. By quantifying temporal changes of the transcriptome, translatome, proteome, and RNA-protein interactome in cervical cancer cells, we systematically characterize the molecular landscape in response to proteostatic challenges. We identify shared and specific responses to misfolded proteins and to oxidative stress, two conditions that are tightly linked. We reveal new aspects of the unfolded protein response, including many genes that escape global translation shutdown. A subset of these genes supports rerouting of energy production in the mitochondria. We also find that many genes change at multiple levels, in either the same or opposing directions, and at different time points. We highlight a variety of putative regulatory pathways, including the stress-dependent alternative splicing of aminoacyl-tRNA synthetases, and protein-RNA binding within the 3’ untranslated region of molecular chaperones. These results illustrate the potential of this information-rich resource
License type:
http://creativecommons.org/licenses/by/4.0/
Funding Info:
The work was supported by the NIH/NIGMS grants 1R01GM113237-01 and 1R35GM127089-01.
Description:
ISSN:
2050-084X
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