PMID- 30914305 OWN - NLM STAT- MEDLINE DCOM- 20200121 LR - 20200121 IS - 1873-7064 (Electronic) IS - 0028-3908 (Linking) VI - 150 DP - 2019 May 15 TI - Mechanisms underpinning AMP-activated protein kinase-related effects on behavior and hippocampal neurogenesis in an animal model of depression. PG - 121-133 LID - S0028-3908(19)30105-4 [pii] LID - 10.1016/j.neuropharm.2019.03.026 [doi] AB - Adenosine monophosphate-activated protein kinase (AMPK) is critical for whole-body energy metabolism regulation. Recent studies have suggested that physical exercise ameliorates depressive-like behaviors via AMPK activation; however, the underlying mechanism is unclear. Here, we examined the effects and underlying mechanisms of AMPK activation on depressive-like behavior in olfactory bulbectomized (OBX) mice. We treated OBX mice with the AMPK activator, 5-aminoimidazole-4-carboxamide-1-beta-d-ribonucleotide (AICAR) on the 7th or 14th day after bilateral bulbectomy and evaluated depressive-like behavior using the tail-suspension test (TST) and forced swimming test (FST) on the 21st day. The expression of phosphorylated AMPK, protein kinase C zeta (PKCzeta), nuclear factor-kappa B (NF-kappaB), brain-derived neurotrophic factor (BDNF), and cAMP response element-binding protein (CREB) in the hippocampus was assessed by western blotting. Hippocampal neurogenesis and localization of AMPK and phosphorylated NF-kappaB were examined by immunohistochemistry. Chronic AICAR treatment suppressed the prolonged immobility of OBX mice in the TST and FST, and increased the levels of phosphorylated AMPK, PKCzeta, NF-kappaB, CREB, and BDNF. Hippocampal neurogenesis in OBX mice was promoted by chronic AICAR treatment. Co-administration of AICAR with the PKCzeta inhibitor or the neurotrophic tyrosine kinase receptor type 2 (TrkB) antagonist, ANA-12, inhibited these effects. Phosphorylated AMPK was detected in mature and immature hippocampal neurons and microglia, while phosphorylated NF-kappaB was detected only in neurons in AICAR-treated OBX mice. These data indicate that AMPK activation produces anti-depressant effects, which are mediated by elevated hippocampal neurogenesis potentially via PKCzeta/NF-kappaB/BDNF/TrkB/CREB signaling in neurons. CI - Copyright (c) 2019 Elsevier Ltd. All rights reserved. FAU - Odaira, Takayo AU - Odaira T AD - Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan. FAU - Nakagawasai, Osamu AU - Nakagawasai O AD - Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan. Electronic address: osamun@tohoku-mpu.ac.jp. FAU - Takahashi, Kohei AU - Takahashi K AD - Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan. FAU - Nemoto, Wataru AU - Nemoto W AD - Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan. FAU - Sakuma, Wakana AU - Sakuma W AD - Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan. FAU - Lin, Jia-Rong AU - Lin JR AD - Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan. FAU - Tan-No, Koichi AU - Tan-No K AD - Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190323 PL - England TA - Neuropharmacology JT - Neuropharmacology JID - 0236217 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (NF-kappa B) RN - 0 (Ribonucleotides) RN - 360-97-4 (Aminoimidazole Carboxamide) RN - EC 2.7.11.31 (AMP-Activated Protein Kinases) RN - F0X88YW0YK (AICA ribonucleotide) SB - IM MH - AMP-Activated Protein Kinases/*antagonists & inhibitors/metabolism MH - Aminoimidazole Carboxamide/*analogs & derivatives/pharmacology MH - Animals MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cyclic AMP Response Element-Binding Protein/metabolism MH - Depression/*metabolism MH - Disease Models, Animal MH - Hindlimb Suspension MH - Hippocampus/*drug effects/metabolism MH - Male MH - Mice MH - NF-kappa B/metabolism MH - Neurogenesis/*drug effects MH - Phosphorylation/drug effects MH - Ribonucleotides/*pharmacology MH - Signal Transduction/drug effects EDAT- 2019/03/28 06:00 MHDA- 2020/01/22 06:00 CRDT- 2019/03/28 06:00 PHST- 2018/10/16 00:00 [received] PHST- 2019/03/01 00:00 [revised] PHST- 2019/03/19 00:00 [accepted] PHST- 2019/03/28 06:00 [pubmed] PHST- 2020/01/22 06:00 [medline] PHST- 2019/03/28 06:00 [entrez] AID - S0028-3908(19)30105-4 [pii] AID - 10.1016/j.neuropharm.2019.03.026 [doi] PST - ppublish SO - Neuropharmacology. 2019 May 15;150:121-133. doi: 10.1016/j.neuropharm.2019.03.026. Epub 2019 Mar 23.