PMID- 36166962 OWN - NLM STAT- MEDLINE DCOM- 20221021 LR - 20221021 IS - 1950-6007 (Electronic) IS - 0753-3322 (Linking) VI - 155 DP - 2022 Nov TI - L-4-Fluorophenylglycine produces antidepressant-like effects and enhances resilience to stress in mice. PG - 113726 LID - S0753-3322(22)01115-5 [pii] LID - 10.1016/j.biopha.2022.113726 [doi] AB - D-serine has attracted increasing attention for its possible role in depression. L-4-Fluorophenylglycine (L-4FPG), an inhibitor of the neutral amino acid transporter ASCT1/2, has been shown to regulate extracellular D-serine levels. The present study aimed to explore the potential antidepressant effects of L-4FPG. First, the acute effects of L-4FPG on the forced swimming test, elevated plus maze test, and novelty-suppressed feeding test were examined. L-4FPG showed antidepressant-like effects, which could be reversed by rapamycin, a mammalian target of rapamycin (mTOR) inhibitor, and 6-cyano-7-nitroquinoxaline-2,3-dione (CNQX), an alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor antagonist. The phosphorylation levels of mTOR and GluR1 in the hippocampus were also increased after L-4FPG treatment. Next, the therapeutic effects of L-4FPG were examined in a chronic social defeat stress (CSDS) model of depression. L-4FPG ameliorated depression-like behaviors in mice subjected to CSDS. Furthermore, treatment with L-4FPG prior to each social defeat stress session not only decreased defensive behaviors but also prevented CSDS-induced social avoidance and anxiety-like and depression-like behaviors. These findings suggest that L-4FPG may be useful not only in alleviating depression but also in protecting against chronic stress-related psychiatric disorders. CI - Copyright (c) 2022 The Authors. Published by Elsevier Masson SAS.. All rights reserved. FAU - Sung, Che-Wei AU - Sung CW AD - Institute of Systems Neuroscience, National Tsing-Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 300044, Taiwan; Center for Neuropsychiatric Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 35053, Taiwan. FAU - Chang, Wei-Tang AU - Chang WT AD - Center for Neuropsychiatric Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 35053, Taiwan. FAU - Chan, Ming-Huan AU - Chan MH AD - Institute of Neuroscience, National Chengchi University, 64, Section 2, Zhinan Road, Taipei 11605, Taiwan. FAU - Kuo, Tsung-Han AU - Kuo TH AD - Institute of Systems Neuroscience, National Tsing-Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 300044, Taiwan. Electronic address: thkuo@life.nthu.edu.tw. FAU - Chen, Hwei-Hsien AU - Chen HH AD - Center for Neuropsychiatric Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 35053, Taiwan; Institute of Neuroscience, National Chengchi University, 64, Section 2, Zhinan Road, Taipei 11605, Taiwan. Electronic address: hwei@nhri.org.tw. LA - eng PT - Journal Article DEP - 20220924 PL - France TA - Biomed Pharmacother JT - Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie JID - 8213295 RN - 6OTE87SCCW (6-Cyano-7-nitroquinoxaline-2,3-dione) RN - 93939-74-3 (4-fluorophenylglycine) RN - 77521-29-0 (alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid) RN - 0 (Antidepressive Agents) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - 452VLY9402 (Serine) RN - W36ZG6FT64 (Sirolimus) RN - 0 (Amino Acid Transport Systems, Neutral) SB - IM MH - Mice MH - Animals MH - 6-Cyano-7-nitroquinoxaline-2,3-dione/metabolism/pharmacology MH - *Depression/drug therapy/metabolism MH - alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid/pharmacology MH - Stress, Psychological/drug therapy/metabolism MH - Mice, Inbred C57BL MH - Antidepressive Agents/pharmacology MH - TOR Serine-Threonine Kinases/metabolism MH - Hippocampus MH - Serine/metabolism/pharmacology MH - Sirolimus/pharmacology MH - *Amino Acid Transport Systems, Neutral/metabolism/pharmacology MH - Mammals OTO - NOTNLM OT - AMPA receptor OT - ASCT OT - Anxiety OT - Depression OT - MTOR OT - Social defeat stress COIS- Declaration of Competing Interest The authors declare no competing financial interests. EDAT- 2022/09/28 06:00 MHDA- 2022/10/22 06:00 CRDT- 2022/09/27 18:22 PHST- 2022/08/01 00:00 [received] PHST- 2022/09/13 00:00 [revised] PHST- 2022/09/19 00:00 [accepted] PHST- 2022/09/28 06:00 [pubmed] PHST- 2022/10/22 06:00 [medline] PHST- 2022/09/27 18:22 [entrez] AID - S0753-3322(22)01115-5 [pii] AID - 10.1016/j.biopha.2022.113726 [doi] PST - ppublish SO - Biomed Pharmacother. 2022 Nov;155:113726. doi: 10.1016/j.biopha.2022.113726. Epub 2022 Sep 24.