Endoplasmic reticulum stress protein GRP78 for ketamine's antidepressant effects

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Bibliografiske detaljer
Udgivet i:bioRxiv (Feb 25, 2025)
Hovedforfatter: Cui, Wanpeng
Andre forfattere: Chen, Shen, Wen-Cheng, Xiong, Lin, Mei
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Cold Spring Harbor Laboratory Press
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LEADER 00000nab a2200000uu 4500
001 3171089327
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022 |a 2692-8205 
024 7 |a 10.1101/2025.02.22.639685  |2 doi 
035 |a 3171089327 
045 0 |b d20250225 
100 1 |a Cui, Wanpeng 
245 1 |a Endoplasmic reticulum stress protein GRP78 for ketamine's antidepressant effects 
260 |b Cold Spring Harbor Laboratory Press  |c Feb 25, 2025 
513 |a Working Paper 
520 3 |a Ketamine is a fast-acting, long-lasting novel antidepressant. However, underpinning intracellular mechanisms remain unclear. We conducted an unbiased screening for genes that were less expressed in the prefrontal cortex (PFC) of mice that did not display antidepression-like effects to ketamine. GO analysis implicated endoplasmic reticulum and protein folding; in particular, GRP78, a stress-induced chaperone protein critical for protein folding, was reduced. We showed that GRP78 deficiency in PFC neurons induced depressive-like behaviors, whereas its overexpression produced anti-depression-like effects, revealing a novel function of GRP78. Prefrontal GRP78 was necessary for ketamine's antidepressant-like effects. GRP78 was also required for ketamine to increase calcium activity and glutamatergic transmission. Enhancing GRP78 by viral infection and azoramide enabled non-responsive mice to respond to ketamine. Together, our results demonstrate that GRP78 is critical for ketamine to execute antidepressant effects by potentiating glutamatergic transmission in the PFC.Competing Interest StatementThe authors have declared no competing interest.Footnotes* https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE289896 
653 |a Ketamine 
653 |a Endoplasmic reticulum 
653 |a Protein folding 
653 |a Antidepressants 
653 |a Glutamatergic transmission 
653 |a Genetic screening 
653 |a Prefrontal cortex 
700 1 |a Chen, Shen 
700 1 |a Wen-Cheng, Xiong 
700 1 |a Lin, Mei 
773 0 |t bioRxiv  |g (Feb 25, 2025) 
786 0 |d ProQuest  |t Biological Science Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3171089327/abstract/embedded/J7RWLIQ9I3C9JK51?source=fedsrch 
856 4 0 |3 Full text outside of ProQuest  |u https://www.biorxiv.org/content/10.1101/2025.02.22.639685v1