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Sales AJ, Joca SRL, Del Bel E, Guimarães FS. The antidepressant-like effect of doxycycline is associated with decreased nitric oxide metabolite levels in the prefrontal cortex. Behav Brain Res 2024; 458:114764. [PMID: 37972712 DOI: 10.1016/j.bbr.2023.114764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
Doxycycline is an antibiotic that has shown neuroprotective, anti-inflammatory, and antidepressant-like effects. Low doses of doxycycline revert the behavioral and neuroinflammatory responses induced by lipopolysaccharide treatment in a mice model of depression. However, the molecular mechanisms involved in the antidepressant action of doxycycline are not yet understood. Doxycycline inhibits the synthesis of nitric oxide (NO), which increases after stress exposure. Inducible NO synthase (iNOS) inhibition also causes antidepressant-like effects in animal models sensitive to antidepressant-like effects such as the forced swimming test (FST). However, no direct study has yet investigated if the antidepressant-like effects of doxycycline could involve changes in NO-mediated neurotransmission. Therefore, this study aimed at investigating: i) the behavioral effects induced by doxycycline alone or in association with ineffective doses of a NO donor (sodium nitroprusside, SNP) or an iNOS inhibitor (1400 W) in mice subjected to the FST; and ii) doxycycline effects in NO metabolite levels in the prefrontal cortex and hippocampus these animals. Male mice (8 weeks) received i.p. injection of saline or doxycycline (10, 30, and 50 mg/kg), alone or combined with SNP (0.1, 0.5, and 1 mg/kg) or 1400 W (1, 3, and 10 µg/kg), and 30 min later were submitted to the FST. Animals were sacrificed immediately after, and NO metabolites nitrate/nitrite (NOx) were measured in the prefrontal cortex and hippocampus. Doxycycline (50 mg/kg) reduced both the immobility time in the FST and NOx levels in the prefrontal cortex of mice compared to the saline group. The antidepressant-like effect of doxycycline in the FST was prevented by SNP (1 mg/kg) pretreatment. Additionally, sub-effective doses of doxycycline (30 mg/kg) associated with 1400 W (1 µg/kg) induced an antidepressant-like effect in the FST. Altogether, our data suggest that the reducing NO levels in the prefrontal cortex through inhibition of iNOS could be related to acute doxycycline treatment resulting in rapid antidepressant-like effects in mice.
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Affiliation(s)
- Amanda J Sales
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Sâmia R L Joca
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Elaine Del Bel
- Departament of Basic and Oral Science, Faculty of Odontology of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Francisco S Guimarães
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
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Yin JB, Liu HX, Shi W, Ding T, Hu HQ, Guo HW, Jin S, Wang XL, Zhang T, Lu YC, Cao BZ. Various BDNF administrations attenuate SPS-induced anxiety-like behaviors. Neurosci Lett 2022; 788:136851. [PMID: 36007708 DOI: 10.1016/j.neulet.2022.136851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 08/02/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022]
Abstract
Post-traumatic stress disorder (PTSD) has become epidemic following severely stressful incidents. Previous studies have shown that brain-derived neurotrophic factor (BDNF) has anxiolytic effects on various anxiety or depression disorders including PTSD. However, the detailed mechanisms of BDNF for treating PTSD were rarely investigated. In the current study, single-prolonged stress (SPS) was used as an animal model recapitulating specific aspects for a PTSD-like phenotype. The effects of BDNF on SPS-induced anxiety-like behaviors were investigated. We showed that the levels of BDNF in the cerebro-spinal fluid (CSF) were significantly reduced after the rats experienced SPS. The SPS-induced reductions of percentages of time spent in the central area to total time in the open field test, were dose-dependently mitigated after BDNF intracerebroventricular (i.c.v.) injections. BDNF i.c.v. administration also dose-dependently increased the preference of the light box in the light-dark box test. Both expressions of tyrosine kinase receptor B (TrkB) protein and mRNA in the prefrontal cortex (PFC) and amygdala were significantly increased after SPS challenges. BDNF i.c.v. administration attenuated these compensatory increases of TrkB. At last, the anxiolytic effects of BDNF on SPS model were also observed by using other two injection methods. These results inspired us to study that different administrations of BDNF were used in patients with PTSD in the future, in-depthly.
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Affiliation(s)
- Jun-Bin Yin
- Department of Neurology, The 960(th) Hospital of Joint Logistics Support, PLA, Jinan 250031, PR China; Department of Human Anatomy, Histology and Embryology, The Fourth Military Medical University, Xi'an 710032, PR China
| | - Hai-Xia Liu
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan 250021, PR China
| | - Wei Shi
- Department of Neurosurgery, The 960th Hospital of Joint Logistics Force, PLA, Jinan 250031, PR China
| | - Tan Ding
- Department of Human Anatomy, Histology and Embryology, The Fourth Military Medical University, Xi'an 710032, PR China; Institute of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, PR China
| | - Huai-Qiang Hu
- Department of Neurology, The 960(th) Hospital of Joint Logistics Support, PLA, Jinan 250031, PR China
| | - Hong-Wei Guo
- Department of Neurology, The 960(th) Hospital of Joint Logistics Support, PLA, Jinan 250031, PR China
| | - Shan Jin
- Department of Neurology, The 960(th) Hospital of Joint Logistics Support, PLA, Jinan 250031, PR China
| | - Xiao-Ling Wang
- Department of Neurology, The 960(th) Hospital of Joint Logistics Support, PLA, Jinan 250031, PR China
| | - Ting Zhang
- Department of Human Anatomy, Histology and Embryology, The Fourth Military Medical University, Xi'an 710032, PR China
| | - Ya-Cheng Lu
- Department of Human Anatomy, Histology and Embryology, The Fourth Military Medical University, Xi'an 710032, PR China
| | - Bing-Zhen Cao
- Department of Neurology, The 960(th) Hospital of Joint Logistics Support, PLA, Jinan 250031, PR China.
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Xiong L, Liu SC, Huo SY, Pu LQ, Li JJ, Bai WY, Yang Y, Shao JL. Exploration in the Therapeutic and Multi-Target Mechanism of Ketamine on Cerebral Ischemia Based on Network Pharmacology and Molecular Docking. Int J Gen Med 2022; 15:4195-4208. [PMID: 35480991 PMCID: PMC9035835 DOI: 10.2147/ijgm.s345884] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 04/12/2022] [Indexed: 11/23/2022] Open
Abstract
Background Ketamine is famous for its dissociative anesthetic properties. It is also analgesic, anti-inflammatory and anti-depressant, and even has a cerebral protective effect. We searched the evidence of the correlation between ketamine target and clinical efficacy and utilized network pharmacology to gather information about the multi-target mechanism of ketamine against cerebral ischemia (CI). We found that ketamine’s clinical significance may be more extensive than previously thought. Methods The drug target of ketamine and CI-related genes were predicted by SwissTargetPrediction, DrugBank, PubChem, GeneCards and DisGeNET databases. The intersection of ketamine’s drug-targets and CI-related genes was analyzed by using GO and KEGG. We predicted the molecular docking between the potential target and ketamine. Results The results indicated that the effect of ketamine on CI was primarily associated with the target of α-synuclein (SNCA), muscarinic acetylcholine receptor M1 (CHRM1) and nitric oxide synthase 1 (NOS1). It principally regulates the signal pathways of circadian transmission, calcium signaling pathway, dopaminergic synapse, cholinergic synapse and glutamatergic synapse. Molecular docking analysis exhibited that hydrogen bond and Pi-Pi interaction were the predominant modes of interaction. Conclusion There are protein targets affected by ketamine in the treatment of CI. Three pivotal targets involving 298 proteins, SNCA, CHRM1 and NOS1, have emerged as multi-target mechanisms for ketamine in CI therapy. Similarly, this study also provides a new idea for introducing network pharmacology into the evaluation of multi-targeted drugs for CI and cerebral protection.
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Affiliation(s)
- Li Xiong
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, People’s Republic of China
| | - Shi-Cheng Liu
- Department of Oncology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, People’s Republic of China
| | - Si-Ying Huo
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, People’s Republic of China
| | - Lan-Qing Pu
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, People’s Republic of China
| | - Jun-Jie Li
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, People’s Republic of China
| | - Wen-Ya Bai
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, People’s Republic of China
| | - Yuan Yang
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, People’s Republic of China
| | - Jian-Lin Shao
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, People’s Republic of China
- Correspondence: Jian-Lin Shao, Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, 295 Xichang Road, Kunming, Yunnan, 650032, People’s Republic of China, Email
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Sun W, Yang Y, Chen X, Cheng Y, Li X, An L. Light Promotes Neural Correlates of Fear Memory via Enhancing Brain-Derived Neurotrophic Factor (BDNF) Expression in the Prelimbic Cortex. ACS Chem Neurosci 2021; 12:1802-1810. [PMID: 33961393 DOI: 10.1021/acschemneuro.1c00081] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Exposure to light has been shown to enhance vigilance and improve working memory, possibly due to changes in prefrontal function. Ample evidence supports the critical role of prefrontal cortex (PFC) in fear memory performance. However, the effects of light on memory processing and its potential mechanisms remain unclear. Here, through rats exposure conditioned to light at different memory phases, we sought evidence for the influences by employing behavioral tests, pharmacological infusions, immunoblotting, and electrophysiological recording. Exposure to light immediately following conditioning of 30 min or longer could effectively improve consolidation of fear memory without altering short-term memory or upgrading the original fear. The absence of significant freezing during baseline and intertrial interval periods ruled out the possibility of a general induction of freezing by light. Meanwhile, rats exposed to light in homecages or conditioning chambers exhibited a similar memory phenotype, indicating that light specifically enhanced the fear stimulus rather than the contextual environment. Furthermore, light exposure elevated the training-induced brain-derived neurotrophic factor (BDNF) expression in the prelimbic, but not infralimbic, subregion of the PFC. Moreover, the BDNF-TrkB pathway, but not the BDNF-p75NTR pathway, was involved in light-mediated fear memory. The enhancement in BDNF activity effectively facilitated firing correlates of prelimbic pyramidal neurons but not fast-spiking interneurons. Blocking the training-induced BDNF by its antibody abolished the effects of light on neural function and fear memory. Therefore, our findings indicate that light enhances training-induced BDNF expression that promotes the neural correlate of memory function.
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Affiliation(s)
- Wei Sun
- Behavioral Neuroscience Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
- Department of Pediatric, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
| | - Yang Yang
- Department of Pediatric, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
| | - Xiao Chen
- Behavioral Neuroscience Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
| | - Yan Cheng
- Behavioral Neuroscience Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
- Department of Pediatric, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
| | - Xiaolian Li
- Department of Neurology, Jinan Rehabilitation Hospital, Jinan 250013, China
| | - Lei An
- Behavioral Neuroscience Laboratory, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
- Department of Pediatric, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
- Department of Neurology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang 550001, China
- Department of Physiology, University of Saskatchewan, Saskatoon S7N 5E5, Canada
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Stanquini LA, Sartim AG, Joca SRL. Orexin A injection into the ventral medial prefrontal cortex induces antidepressant-like effects: Possible involvement of local Orexin-1 and Trk receptors. Behav Brain Res 2020; 395:112866. [PMID: 32827568 DOI: 10.1016/j.bbr.2020.112866] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 11/24/2022]
Abstract
RATIONALE Reduced levels of orexin-A (OXA) in the central nervous system (CNS) have been associated with the pathophysiology of depression and its exogenous administration promotes antidepressant-like effect. The mechanisms associated with these effects are, however, not yet known. Herein, we investigated the hypothesis that OXA effects could be associated with orexin 1 receptor (OX1R) and tyrosine receptor kinase B (TrkB) activation, in the ventromedial prefrontal cortex (vmPFC), a brain region that is central to depression neurobiology. OBJECTIVES 1. To Investigate the effects induced by OXA administration into the vmPFC; 2. Evaluate the participation of OX1R and TrkB in behavioral responses induced by OXA. METHODS Male Wistar rats received intra-vmPFC injections of OXA (10, 50 and 100 pmol/0.2 μL) and were exposed to the forced swimming test (FST) or the open field test (OFT). Independent groups received an intra-vmPFC injection of SB334867 (OX1R antagonist, 10 nmol/0.2 μL) or K252a (non-selective Trk antagonist, 10 pmol/0.2 μL), before local injection of OXA, and were exposed to the same tests. RESULTS OXA injection (100 pmol/0.2 μL) into the vmPFC induced antidepressant-like effect, which was prevented by SB334867 and K252a pretreatments. CONCLUSION OXA signaling in the vmPFC induces antidepressant-like effect in the FST which is dependent on OX1R and Trk receptors.
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Affiliation(s)
- L A Stanquini
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - A G Sartim
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - S R L Joca
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil; Center for Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, Brazil.
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Sun W, Che H, Li J, Tang D, Liu X, Liu W, An L. Dorsolateral Striatal proBDNF Improves Reversal Learning by Enhancing Coordination of Neural Activity in Rats. Mol Neurobiol 2020; 57:4642-4656. [DOI: 10.1007/s12035-020-02051-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/30/2020] [Indexed: 12/31/2022]
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Ribeiro DE, Müller HK, Elfving B, Eskelund A, Joca SR, Wegener G. Antidepressant-like effect induced by P2X7 receptor blockade in FSL rats is associated with BDNF signalling activation. J Psychopharmacol 2019; 33:1436-1446. [PMID: 31526216 DOI: 10.1177/0269881119872173] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND P2X7 receptors (P2X7R) are ligand-gated ion channels activated by adenosine 5'-triphosphate (ATP), which are involved in processes that are dysfunctional in stress response and depression, such as neurotransmitter release, and neuroimmune response. Genetic and pharmacological inhibition of the P2X7R induce antidepressant-like effects in animals exposed to stress. However, the effect of P2X7R antagonism in an animal model of depression based on selective breeding has not previously been studied, and the mechanism underling the antidepressant-like effect induced by the P2X7R blockade remains unknown. AIMS The present study aimed to: (1) determine whether P2X7R blockade induces antidepressant-like effects in the Flinders Sensitive Line (FSL) rats and, (2) investigate whether brain-derived neurotrophic factor (BDNF) signalling in the frontal cortex and hippocampus is involved in this effect. METHODS FSL and the control Flinders Resistant Line (FRL) rats were treated with vehicle or the P2X7R antagonist A-804598 (3, 10 or 30 mg/Kg/day) for 1 or 7 days before being exposed to the forced swim test (FST). After the behavioural test, animals were decapitated, their brains were removed and the frontal cortex, ventral and dorsal hippocampus were dissected for BDNF signalling analysis. RESULTS We found that repeated treatment with A-804598 (30 mg/Kg) reduced the immobility time in the FST and activated the BDNF signalling in the ventral hippocampus of FSL rats. CONCLUSIONS P2X7R blockade induces an antidepressant-like effect associated with increased levels of BDNF-AKT-p70 S6 kinase in the ventral hippocampus, which may be mediated by tropomyosin-related kinase B (TRKB) receptor activation supporting the notion of P2X7R antagonism as a potential new antidepressant strategy.
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Affiliation(s)
- Deidiane E Ribeiro
- Department of Pharmacology, School of Medicine of Ribeirão Preto - University of São Paulo, São Paulo, Brazil.,Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto - University of São Paulo, Ribeirão Preto, Brazil.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Biochemistry, Chemistry Institute, University of São Paulo, São Paulo, Brazil
| | - Heidi K Müller
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Betina Elfving
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Amanda Eskelund
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Samia Rl Joca
- Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto - University of São Paulo, Ribeirão Preto, Brazil.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Aarhus Institute of Advanced Studies, Aarhus University, Aarhus, Denmark
| | - Gregers Wegener
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,AUGUST Centre, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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