PMID- 36550125 OWN - NLM STAT- MEDLINE DCOM- 20221226 LR - 20230119 IS - 2158-3188 (Electronic) IS - 2158-3188 (Linking) VI - 12 IP - 1 DP - 2022 Dec 22 TI - ERK/mTOR signaling may underlying the antidepressant actions of rapastinel in mice. PG - 522 LID - 10.1038/s41398-022-02290-5 [doi] LID - 522 AB - Rapastinel as the allosteric modulator of N-methyl-D-aspartate receptor (NMDAR) produces rapid antidepressant-like effects dependent on brain-derived neurotrophic factor (BDNF) and VGF (nonacryonimic) release. Herein, we further explore the molecular mechanisms of the antidepressant effects of repeated administration with rapastinel in mice. Our results showed that continuous 3-day rapastinel (5 and 10 mg/kg, i.v.) produced antidepressant-like actions dependent on the increase in extracellular regulated protein kinase (ERK)/mammalian target of rapamycin (mTOR) signaling and downstream substrates p70S6 kinase (p70S6k) and the eukaryotic initiation factor 4E-binding protein 1 (4E-BP1), which may induce the expression of VGF and BDNF in the hippocampus and prefrontal cortex of mice. Furthermore, compared with a single treatment, our data indicated that 3-day repeated rapastinel treatment produced antidepressant-like actions accompanied by potentiation of ERK/mTOR/VGF/BDNF/tropomyosin-related kinase receptor B (TrkB) signaling. Based on previous and our supplementary data that showed the pivotal role of on alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) in the rapid release of VGF and BDNF and activation of TrkB by a single dose of rapastinel, we postulate that the antidepressant-like effects of single or repeated administration of rapastinel may result in the rapid release of VGF and BDNF or ERK/mTOR signaling pathway-mediated VGF/BDNF/TrkB autoregulatory feedback loop respectively. Our current work adds new knowledge to the molecular mechanisms that underlie the antidepressant-like actions of rapastinel in mice. CI - (c) 2022. The Author(s). FAU - Shen, Mengxin AU - Shen M AD - Zhejiang Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, 315211, Ningbo, Zhejiang, People's Republic of China. AD - School of Basic Medical Science, School of Medicine, Ningbo University, 315211, Ningbo, Zhejiang, People's Republic of China. AD - Central Laboratory, Ningbo First Hospital, Zhejiang University, 315010, Ningbo, Zhejiang, China. FAU - Lv, Dan AU - Lv D AD - Zhejiang Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, 315211, Ningbo, Zhejiang, People's Republic of China. AD - School of Basic Medical Science, School of Medicine, Ningbo University, 315211, Ningbo, Zhejiang, People's Republic of China. FAU - Liu, Xinya AU - Liu X AD - Zhejiang Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, 315211, Ningbo, Zhejiang, People's Republic of China. AD - School of Basic Medical Science, School of Medicine, Ningbo University, 315211, Ningbo, Zhejiang, People's Republic of China. FAU - Wang, Chuang AU - Wang C AUID- ORCID: 0000-0002-3816-230X AD - Zhejiang Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, 315211, Ningbo, Zhejiang, People's Republic of China. wangchuang@nbu.edu.cn. AD - School of Basic Medical Science, School of Medicine, Ningbo University, 315211, Ningbo, Zhejiang, People's Republic of China. wangchuang@nbu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221222 PL - United States TA - Transl Psychiatry JT - Translational psychiatry JID - 101562664 RN - 6A1X56B95E (GLYX-13 peptide) RN - 0 (Brain-Derived Neurotrophic Factor) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - 0 (Antidepressive Agents) SB - IM MH - Mice MH - Animals MH - *Brain-Derived Neurotrophic Factor/metabolism MH - *Signal Transduction MH - TOR Serine-Threonine Kinases/metabolism MH - Antidepressive Agents/pharmacology/therapeutic use MH - Mammals/metabolism PMC - PMC9780240 COIS- The authors declare no competing interests. EDAT- 2022/12/23 06:00 MHDA- 2022/12/27 06:00 PMCR- 2022/12/22 CRDT- 2022/12/22 23:18 PHST- 2021/12/10 00:00 [received] PHST- 2022/12/14 00:00 [accepted] PHST- 2022/12/10 00:00 [revised] PHST- 2022/12/22 23:18 [entrez] PHST- 2022/12/23 06:00 [pubmed] PHST- 2022/12/27 06:00 [medline] PHST- 2022/12/22 00:00 [pmc-release] AID - 10.1038/s41398-022-02290-5 [pii] AID - 2290 [pii] AID - 10.1038/s41398-022-02290-5 [doi] PST - epublish SO - Transl Psychiatry. 2022 Dec 22;12(1):522. doi: 10.1038/s41398-022-02290-5.