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Chen W, Yan X, Song X, Yang Y, Wang X, Xu G, Wang T, Liu Y, Fan Z, Song G. Effects of Fzd6 on intestinal flora and neuroinflammation in lipopolysaccharide-induced depression-like mice. J Affect Disord 2024; 372:S0165-0327(24)01990-6. [PMID: 39643213 DOI: 10.1016/j.jad.2024.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 11/24/2024] [Accepted: 12/02/2024] [Indexed: 12/09/2024]
Abstract
BACKGROUND The gut microbiome is critical for the pathophysiology of depression, and inflammation is one of the factors contributing to depression. Fzd6 has been implicated in depression. This study aimed to elucidate the effects of the Fzd6 mutation on gut microbiota structure and the possible regulatory mechanisms involved in depression-associated neuroinflammation. METHODS Wild-type (Fzd6WT) and Fzd6 mutant (Fzd6Q152E) male mice were treated with lipopolysaccharide (LPS) for 7 days. Behavioral experiments were used to detect the behavioral changes of mice in each group, and the composition of intestinal flora and systemic inflammation levels of mice were further detected. RESULTS In LPS mice, the Fzd6 mutation enhanced depression-like behavior symptoms, increased the release of pro-inflammatory cytokines, decreased the release of anti-inflammatory cytokines, and caused intestinal flora disturbance. Subsequently, 16SrRNA sequencing revealed significant changes in the relative abundance of the inflammation-associated bacterial groups Ruminococcaceae and Lachnospiraceae in Fzd6Q152E mice. In mice with depression, the levels of G protein-coupled receptors, GPR41 and GPR43, and glucagon-like peptide-1 (GLP-1) in the small intestine were down-regulated, and the expression of GLP-1 receptor (GLP-1R), peroxisome proliferators activated receptors gamma (PPAR-γ), and nuclear factor kappa-B inhibitor alpha (IκBα) in the hippocampus was also down-regulated, while the expression of nuclear factor kappa-B p65 (NF-κB p65) was up-regulated. LIMITATIONS The size of the spleen was not studied in this model, and the Fzd6 mutation itself does not cause systemic inflammation such as IL-6. CONCLUSION These results demonstrate that mutations in Fzd6 regulate the composition of the gut flora, which contributes to depression-associated inflammation.
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Affiliation(s)
- Wenlu Chen
- The Laboratory Animal Center, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China; Department of Basic Medical Sciences, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China
| | - Xiaoru Yan
- The Laboratory Animal Center, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China; Department of Basic Medical Sciences, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China
| | - Xiaona Song
- Department of Basic Medical Sciences, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China
| | - Yiyan Yang
- The Laboratory Animal Center, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China; Department of Basic Medical Sciences, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China
| | - Xiaotang Wang
- The Laboratory Animal Center, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China; Department of Basic Medical Sciences, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China
| | - Guoqiang Xu
- The Laboratory Animal Center, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China; Department of Basic Medical Sciences, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China
| | - Tian Wang
- School and Hospital of Stomatology, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China
| | - Yaqi Liu
- The Laboratory Animal Center, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China; Department of Basic Medical Sciences, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China
| | - Zhao Fan
- Department of Basic Medical Sciences, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China
| | - Guohua Song
- The Laboratory Animal Center, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China; Department of Basic Medical Sciences, Shanxi Medical University, No. 56, Xinjian South Rd., Taiyuan 030001, China.
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Xu H, Sun Z, Wang G, Li R. The Impact of Depression on Detrimental Changes in Bone Microstructure in Female Mice. Neuropsychiatr Dis Treat 2024; 20:1421-1433. [PMID: 39049938 PMCID: PMC11268775 DOI: 10.2147/ndt.s454865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 07/02/2024] [Indexed: 07/27/2024] Open
Abstract
Background Several clinical studies have examined the connection between depression and bone loss, but the cause-and-effect relationship between the two conditions, especially in animal models, is not well-studied. Methods A total of 32 female mice were, randomly divided into control group (CON, n=19) and depression group (DEP, n=13). The mice in the DEP group were subjected to 21 consecutive days of restraint stress, following depressive-like behaviors were assessment. The femurs were collected using Micro-Computed Tomography (μCT) and histochemical staining. In parallel, levels of serotonin-related proteins in the brain were measured using Western blot analysis, and sex hormone profiles were determined through liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS). Results The mice in the DEP group exhibited clear signs of depressive-like behaviors and an increase in serotonin transporter levels (t=-2.435, P< 0.05). In comparison to the CON mice, the DEP mice showed a decrease in bone mineral density (t =3.741, P< 0.05), bone surface area density (t =8.009, P<0.01), percent bone volume (t =4.293, P< 0.05), trabecular number (t =5.844, P<0.01), and connected density (t =11.000, P< 0.05). Additionally, there was an increase in trabecular separation (t =-7.436, P<0.01) in DEP mice. Furthermore, the DEP mice displayed a significant reduction in serum estrogen levels (t =4.340, P< 0.05) and changes in its metabolite (t =-3.325, P< 0.05), while the levels of androgens remained unchanged. Conclusion The restraint stress not only led to the development of depressive-like behaviors but also disrupted the estrogen metabolism pathway, resulting in damage to bone mass and microstructure in female mice. These findings suggest that stress-induced depression may pose a risk for bone loss in female mice by altering estrogen metabolism pathways.
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Affiliation(s)
- Hong Xu
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Zuoli Sun
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Gang Wang
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, People’s Republic of China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, People’s Republic of China
| | - Rena Li
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, People’s Republic of China
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Shi S, Ma D, Guo X, Chen Y, Yu J, Hu X, Wang X, Li T, Wang K, Zhi Y, Yang G, Lin L, Hao Q, Yang Y, Yang K, Wang J. Discovery of a Novel ASM Direct Inhibitor with a 1,5-Diphenyl-pyrazole Scaffold and Its Antidepressant Mechanism of Action. J Med Chem 2024; 67:10350-10373. [PMID: 38888140 DOI: 10.1021/acs.jmedchem.4c00831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Multiple studies have confirmed that acid sphingomyelinase (ASM) activity is associated with depression. The discovery of direct inhibitors against ASM is of great significance for exploring antidepressants and their mechanisms of action. Herein, a series of novel phenylpyrazole analogues were rationally designed and synthesized. Among them, compound 46 exhibited potent inhibitory activity (IC50 = 0.87 μM) and good drug-like properties. In vivo studies demonstrated that compound 46 was involved in multiple antidepressant mechanisms of action, which were associated with a decline of ceramide, including increasing the Bcl-2/Bax ratio and BDNF expression, down-regulating caspase-3 and caspase-9, ameliorating oxidative stress, reducing the levels of proinflammatory cytokines such as TNF-α, IL-1β, and IL-6, and elevating 5-HT levels in the brains of mice, respectively. These meaningful results reveal for the first time that direct inhibitors exhibit remarkable antidepressant effects in the CUMS-induced mouse model through multiple mechanisms of antidepressant action.
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Affiliation(s)
- Shaochun Shi
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Dingchen Ma
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Ximing Guo
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yu Chen
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jinying Yu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xiao Hu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xuan Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Ting Li
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Ke Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yunbao Zhi
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Guoqing Yang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Lizhi Lin
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Qingjing Hao
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yuqiao Yang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Kan Yang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Baoding 071002, China
| | - Jinxin Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
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Ma H, Deng J, Liu J, Jin X, Yang J. Daytime aspartame intake results in larger influences on body weight, serum corticosterone level, serum/cerebral cytokines levels and depressive-like behaviors in mice than nighttime intake. Neurotoxicology 2024; 102:37-47. [PMID: 38499183 DOI: 10.1016/j.neuro.2024.03.004] [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: 07/23/2023] [Revised: 11/25/2023] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
Aspartame (APM) is one of the most widely used artificial sweeteners worldwide. Studies have revealed that consuming APM may negatively affect the body, causing oxidative stress damage to multiple organs and leading to various neurophysiological symptoms. However, it's still unclear if consuming APM and one's daily biological rhythm have an interactive effect on health. In this study, healthy adult C57BL/6 mice were randomly divided into four groups: Control group (CON), oral gavage sham group (OGS), daytime APM intragastric group (DAI) and nighttime APM intragastric group (NAI). DAI and NAI groups were given 80 mg/kg body weight daily for 4 weeks. We found that DAI and NAI groups had significantly increased mean body weight, higher serum corticosterone levels, up-regulated pro-inflammatory responses in serum and brain, and exacerbated depressive-like behaviors than the CON and the two APM intake groups. Moreover, all these changes induced by APM intake were more significant in the DAI group than in the NAI group. The present study, for the first time, revealed that the intake of APM and daily biological rhythm have an interactive effect on health. This suggests that more attention should be paid to the timing of APM intake in human beings, and this study also provides an intriguing clue to the circadian rhythms of experimental animals that researchers should consider more when conducting animal experiments.
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Affiliation(s)
- Haiyuan Ma
- School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jiapeng Deng
- School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jing Liu
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xiaobao Jin
- Guangdong Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Junhua Yang
- Department of Anatomy, School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Huang H, Peng Z, Zhan S, Li W, Liu D, Huang S, Zhu Y, Wang W. A comprehensive review of Siraitia grosvenorii (Swingle) C. Jeffrey: chemical composition, pharmacology, toxicology, status of resources development, and applications. Front Pharmacol 2024; 15:1388747. [PMID: 38638866 PMCID: PMC11024725 DOI: 10.3389/fphar.2024.1388747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/21/2024] [Indexed: 04/20/2024] Open
Abstract
Siraitia grosvenorii (Swingle) C. Jeffrey (S. grosvenorii), a perennial indigenous liana from the Cucurbitaceae family, has historically played a significant role in southern China's traditional remedies for various ailments. Its dual classification by the Chinese Ministry of Health for both medicinal and food utility underscores its has the potential of versatile applications. Recent research has shed light on the chemical composition, pharmacological effects, and toxicity of S. grosvenorii. Its active ingredients include triterpenoids, flavonoids, amino acids, volatile oils, polysaccharides, minerals, vitamins, and other microconstituents. Apart from being a natural sweetener, S. grosvenorii has been found to have numerous pharmacological effects, including alleviating cough and phlegm, preventing dental caries, exerting anti-inflammatory and anti-allergic effects, anti-aging and anti-oxidative, hypoglycemic, lipid-lowering, anti-depression, anti-fatigue, anti-schizophrenic, anti-Parkinson, anti-fibrotic, and anti-tumor activities. Despite its versatile potential, there is still a lack of systematic research on S. grosvenorii to date. This paper aims to address this gap by providing an overview of the main active components, pharmacological efficacy, toxicity, current status of development and application, development dilemmas, and strategies for intensive exploitation and utilization of S. grosvenorii. This paper aims to serve as a guide for researchers and practitioners committed to exploiting the biological resources of S. grosvenorii and further exploring its interdisciplinary potential.
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Affiliation(s)
- Huaxue Huang
- School of Pharmacy, Macau University of Science and Technology, Taipa, Macao SAR, China
- School of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China
- Research and Development Institute of Hunan Huacheng Biotech, Inc., Changsha, Hunan, China
- Hunan Natural Sweetener Engineering Technology Research Center, Changsha, Hunan, China
| | - Zhi Peng
- Research and Development Institute of Hunan Huacheng Biotech, Inc., Changsha, Hunan, China
- Hunan Natural Sweetener Engineering Technology Research Center, Changsha, Hunan, China
| | - Shuang Zhan
- Research and Development Institute of Hunan Huacheng Biotech, Inc., Changsha, Hunan, China
- Hunan Natural Sweetener Engineering Technology Research Center, Changsha, Hunan, China
| | - Wei Li
- Research and Development Institute of Hunan Huacheng Biotech, Inc., Changsha, Hunan, China
- Hunan Natural Sweetener Engineering Technology Research Center, Changsha, Hunan, China
| | - Dai Liu
- Research and Development Institute of Hunan Huacheng Biotech, Inc., Changsha, Hunan, China
- Hunan Natural Sweetener Engineering Technology Research Center, Changsha, Hunan, China
| | - Sirui Huang
- Research and Development Institute of Hunan Huacheng Biotech, Inc., Changsha, Hunan, China
- Hunan Natural Sweetener Engineering Technology Research Center, Changsha, Hunan, China
| | - Yizhun Zhu
- School of Pharmacy, Macau University of Science and Technology, Taipa, Macao SAR, China
| | - Wei Wang
- School of Pharmacy, Macau University of Science and Technology, Taipa, Macao SAR, China
- School of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China
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Chang J, Yang H, Shan X, Zhao L, Li Y, Zhang Z, Abankwah JK, Zhang M, Bian Y, Guo Y. Bergamot essential oil improves CUMS-induced depression-like behaviour in rats by protecting the plasticity of hippocampal neurons. J Cell Mol Med 2024; 28:e18178. [PMID: 38553964 PMCID: PMC10980931 DOI: 10.1111/jcmm.18178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/07/2024] [Accepted: 01/31/2024] [Indexed: 04/02/2024] Open
Abstract
Bergamot essential oil (BEO) is an extract of the bergamot fruit with significant neuroprotective effect. This study was to investigate the effects and the underlying mechanism of BEO in mitigating depression. GC-MS were used to identify its constituents. Antidepressive properties of BEO were evaluated by sucrose preference test (SPT), force swimming test (FST) and open field test (OFT). Nissl staining was used to determine the number of Nissl bodies in hippocampus (HIPP) of rats. Changes in HIPP dendritic length and dendritic spine density were detected by Golgi-Cox staining. Immunohistochemistry and Western blot were used to detect the postsynaptic density protein-95 (PSD-95) and synaptophysin (SYP) in the HIPP of rats. The enzyme-linked immunosorbent assay was used to determine the 5-hydroxytryptamine (5-HT), insulin-like growth factor 1 (IGF-1) and interleukin-1β (IL-1β) in the HIPP, serum and cerebrospinal fluid (CSF) of rats. Inhaled BEO significantly improved depressive behaviour in chronic unpredictable mild stress (CUMS) rats. BEO increased Nissl bodies, dendritic length and spine density, PSD-95 and SYP protein in the HIPP. Additionally, BEO upregulated serum 5-HT, serum and CSF IGF-1, while downregulating serum IL-1β. Collectively, inhaled BEO mitigates depression by protecting the plasticity of hippocampal neurons, hence, providing novel insights into treatment of depression.
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Affiliation(s)
- Jun Chang
- First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjinChina
- National Clinical Research Center for Chinese Medicine Acupuncture and MoxibustionTianjinChina
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Huimin Yang
- Tianjin University of Traditional Chinese MedicineTianjinChina
| | - Xiaoqian Shan
- First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjinChina
- National Clinical Research Center for Chinese Medicine Acupuncture and MoxibustionTianjinChina
| | - Lan Zhao
- First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjinChina
- National Clinical Research Center for Chinese Medicine Acupuncture and MoxibustionTianjinChina
| | - Yujiao Li
- First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjinChina
- National Clinical Research Center for Chinese Medicine Acupuncture and MoxibustionTianjinChina
| | - Zhao Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjinChina
- National Clinical Research Center for Chinese Medicine Acupuncture and MoxibustionTianjinChina
| | | | - Mingxing Zhang
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Yuhong Bian
- School of Integrative MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Yi Guo
- National Clinical Research Center for Chinese Medicine Acupuncture and MoxibustionTianjinChina
- Research Center of Experimental Acupuncture ScienceTianjin University of Traditional Chinese MedicineTianjinChina
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Zhang L, Zheng J, Liu SY, Hou LL, Zhang B, Tian SW. Acute Administration of Lactate Exerts Antidepressant-like Effect Through cAMP-dependent Protein Synthesis. Neuroscience 2024; 542:11-20. [PMID: 38336096 DOI: 10.1016/j.neuroscience.2024.02.003] [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: 09/14/2023] [Revised: 01/16/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Lactate acts as an important metabolic substrate and signalling molecule modulating neural activities in the brain, and recent preclinical and clinical studies have revealed its antidepressant effect after acute or chronic peripheral administration. However, the neural mechanism underlying the antidepressant effect of lactate, in particular when lactate is acutely administered remains largely unknown. In the current study, we focused on forced swimming test (FST) to elucidate the neural mechanisms through which acute intracerebroventricular (ICV) infusion of lactate exerts antidepressant-like effect. A total of 238 male Sprague Dawley rats were used as experimental subjects. Results showed lactate produced antidepressant-like effect, as indicated by reduced immobility, in a dose- and time-dependent manner. Moreover, the antidepressant-like effect of lactate was dependent of new protein synthesis but not new gene expression, lactate's metabolic effect or hydroxy-carboxylic acid receptor 1 (HCAR1) activation. Furthermore, lactate rapidly promoted dephosphorylation of eukaryotic elongation factor 2 (eEF2) and increased brain-derived neurotrophic factor (BDNF) protein synthesis in the hippocampus in a cyclic adenosine monophosphate (cAMP)-dependent manner. Finally, inhibition of cAMP production blocked the antidepressant-like effect of lactate. These findings suggest that acute administration of lactate exerts antidepressant-like effect through cAMP-dependent protein synthesis.
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Affiliation(s)
- Liang Zhang
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin, Guangxi 541199, China; Department of Anesthesiology, National Clinical Research Center for Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong 518112, China; Department of Anesthesiology, Nanhua Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China
| | - Jing Zheng
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin, Guangxi 541199, China
| | - Shi-Yan Liu
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin, Guangxi 541199, China
| | - Li-Li Hou
- Department of Anesthesiology, Nanhua Affiliated Hospital, University of South China, Hengyang, Hunan 421001, China
| | - Bo Zhang
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin, Guangxi 541199, China
| | - Shao-Wen Tian
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin, Guangxi 541199, China.
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Liu M, Ling Y, Zhang Y, Liu L, Qiu Y, Liu Y, Yin Y. The role of EndophilinA1 in chronic unpredicted mild stress-induced depression model mice. Int Immunopharmacol 2023; 124:111023. [PMID: 37837716 DOI: 10.1016/j.intimp.2023.111023] [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: 07/02/2023] [Revised: 10/01/2023] [Accepted: 10/03/2023] [Indexed: 10/16/2023]
Abstract
BACKGROUND Depression is a common mental disease, accompanied by anxiety and persistent depression. Endophilin A1 (EPA1) is a brain-specific protein enriched in synaptic terminals that is primarily expressed in the central nervous system. It has been reported that EPA1 is involved in neurotransmitter release, which indicates that the protein may be involved in depression. However, it is unclear whether EPA1 is implicated in the development of depression. METHODS The mice depression model was established by chronic unpredicted mild stress (CUMS). Depression-like behaviors were detected by sucrose preference test (SPT), forced swim test (FST), tail-suspension test (TST) and open-field test (OFT). Neuronal histopathology was applied by hematoxylin and eosin stain (H&E), and Nissl stain. EPA1, NLRP1 inflammatory complexes, NADPH oxidase2 (NOX2), synaptic-related protein expression of the mice were tested by western blot. Immunofluorescence was applied to detect the expression of EPA1 and ROS in mice hippocampus. EPA1 knockdown was performed by an adeno-associated virus (AAV) vector containing EPA1-shRNA-EGFP infusion. RESULT CUMS exposure induced depressive-like behaviors and increased the expression of EPA1 in the hippocampus. Knockdown hippocampal EPA1 ameliorated CUMS-induced depressive-like behaviors, decreased calcium (Ca2+) overload, decreased ROS generation and NOX2 expression, inhibited NLRP1 inflammasome-driven neuroinflammation, and restored the levels of BDNF, PSD95, GAP-43, SYN, and MAP-2 in the hippocampus. CONCLUSION EPA1 contributes to CUMS induced depressive-like behaviors and the mechanism may be related to NLRP1 inflammasome-driven inflammatory response, regulating calcium ion homeostasis and ROS generation, and alleviating synaptic function damage. This indicated that EPA1 may participate in the occurrence and development of depression.
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Affiliation(s)
- Mengqing Liu
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, People's Republic of China
| | - Yi Ling
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, People's Republic of China
| | - Yue Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, People's Republic of China
| | - Lulu Liu
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, People's Republic of China
| | - Yue Qiu
- The Second Clinical Medical School, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, People's Republic of China
| | - Yi Liu
- Stomatologic Hospital & College, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, People's Republic of China
| | - Yanyan Yin
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, People's Republic of China.
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