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Zhang H, Xu L, Xiong J, Li X, Yang Y, Liu Y, Zhang C, Wang Q, Wang J, Wang P, Wu X, Wang X, Zhu X, Guan Y. Role of KCC2 in the Regulation of Brain-Derived Neurotrophic Factor on Ethanol Consumption in Rats. Mol Neurobiol 2023; 60:1040-1049. [PMID: 36401060 DOI: 10.1007/s12035-022-03126-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 11/04/2022] [Indexed: 11/21/2022]
Abstract
Alcohol use disorder (AUD) is a common and complex disorder resulting from repetitive alcohol drinking. The mesocorticolimbic dopamine (DA) system, originating from the ventral tegmental area (VTA) in the midbrain, is involved in the rewarding effect of ethanol. The γ-aminobutyric acid (GABA) neurons in VTA appear to be key substrates of acute and chronic ethanol, which regulates DA neurotransmission indirectly in the mesocorticolimbic system. Despite significant research on the relationship between brain-derived neurotrophic factor (BDNF) and reduced alcohol consumption in male rats involving tropomyosin-related kinase B (TrkB), the mechanisms of BDNF-TrkB regulating alcohol behavior remain scarce. K+-Cl- cotransporter 2 (KCC2) plays a crucial role in synaptic function in GABAergic neurons by modulating intracellular chlorine homeostasis. Here, we found that 4-week intermittent alcohol exposure impaired the function of KCC2 in VTA, evidenced by a lower expression level of phosphorylated KCC2 and decreased ratio of phosphorylated KCC2 to total KCC2, especially 72 h after withdrawal from 4-week ethanol exposure in male rats. CLP290 (a KCC2 activator) reduced excessive alcohol consumption after alcohol withdrawal, whereas VU0240551 (a specific KCC2 inhibitor) further enhanced alcohol intake. Importantly, VU0240551 reversed the attenuating effects of BDNF and 7,8-dihydroxyflavone (7,8-DHF) on alcohol consumption after withdrawal. Moreover, intraperitoneal injection of 7,8-DHF upregulated KCC2 expression and phosphorylated KCC2 in VTA 72 h after withdrawal from ethanol exposure in male rats. Collectively, our data indicate that KCC2 may be critical in the regulating action of BDNF-TrkB on ethanol consumption in AUD.
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Affiliation(s)
- Hongyan Zhang
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Lulu Xu
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Junwei Xiong
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Xinxin Li
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Yindong Yang
- Department of Neurology, the Affiliated Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, China
| | - Yong Liu
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Chunfeng Zhang
- Institute of Vocational and Technical Education, Heilongjiang Agricultural Economy Vocational College, Mudanjiang, 157011, China
| | - Qiyu Wang
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Jiajia Wang
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Pengyu Wang
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Xiaobin Wu
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Xue Wang
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China
| | - Xiaofeng Zhu
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China.
| | - Yanzhong Guan
- Department of Physiology & Neurobiology, Mudanjiang Medical University, Mudanjiang, 157011, China.
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Khirug S, Soni S, Saez Garcia M, Tessier M, Zhou L, Kulesskaya N, Rauvala H, Lindholm D, Ludwig A, Molinari F, Rivera C. Protective Role of Low Ethanol Administration Following Ischemic Stroke via Recovery of KCC2 and p75 NTR Expression. Mol Neurobiol 2021; 58:1145-1161. [PMID: 33099743 PMCID: PMC7878264 DOI: 10.1007/s12035-020-02176-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/14/2020] [Indexed: 01/31/2023]
Abstract
A striking result from epidemiological studies show a correlation between low alcohol intake and lower incidence for ischemic stroke and severity of derived brain injury. Although reduced apoptosis and inflammation has been suggested to be involved, little is known about the mechanism mediating this effect in vivo. Increase in intracellular chloride concentration and derived depolarizing GABAAR-mediated transmission are common consequences following various brain injuries and are caused by the abnormal expression levels of the chloride cotransporters NKCC1 and KCC2. Downstream pro-apoptotic signaling through p75NTR may link GABAA depolarization with post-injury neuronal apoptosis. Here, we show that changes in GABAergic signaling, Cl- homeostasis, and expression of chloride cotransporters in the post-traumatic mouse brain can be significantly reduced by administration of 3% ethanol to the drinking water. Ethanol-induced upregulation of KCC2 has a positive impact on neuronal survival, preserving a large part of the cortical peri-infarct zone, as well as preventing the massive post-ischemic upregulation of the pro-apoptotic protein p75NTR. Importantly, intracortical multisite in vivo recordings showed that ethanol treatment could significantly ameliorate stroke-induced reduction in cortical activity. This surprising finding discloses a pathway triggered by low concentration of ethanol as a novel therapeutically relevant target.
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Affiliation(s)
- Stanislav Khirug
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland.
| | - Shetal Soni
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Marta Saez Garcia
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Marine Tessier
- INMED (INSERM U1249), Aix-Marseille Université, Marseille, France
| | - Liang Zhou
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Natalia Kulesskaya
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Heikki Rauvala
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | - Dan Lindholm
- Medicum, Department of Biochemistry and Developmental Biology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Biomedicum Helsinki 2U, Helsinki, Finland
| | - Anastasia Ludwig
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland
| | | | - Claudio Rivera
- Neuroscience Center-HiLIFE, University of Helsinki, 00014, Helsinki, Finland.
- INMED (INSERM U1249), Aix-Marseille Université, Marseille, France.
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Brandão N, Libarino-Santos M, Marinho E, Oliveira T, Borges A, Oliveira A, Oliveira-Campos D, Azevedo-Souza N, Santos V, Berro L, Oliveira-Lima A. Treatment with zolpidem after ethanol administration potentiates the expression of ethanol-induced behavioral sensitization in mice. Braz J Med Biol Res 2020; 53:e10034. [PMID: 32609258 PMCID: PMC7326377 DOI: 10.1590/1414-431x202010034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/21/2020] [Indexed: 11/22/2022] Open
Affiliation(s)
- N.R.N. Brandão
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
| | - M. Libarino-Santos
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
| | - E.A.V. Marinho
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
| | - T.S. Oliveira
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
| | - A.L.N. Borges
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
| | - A.P. Oliveira
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
| | - D. Oliveira-Campos
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
| | - N. Azevedo-Souza
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
| | - V.F.L. Santos
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
| | - L.F. Berro
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil; University of Mississippi Medical Center, USA
| | - A.J. Oliveira-Lima
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Brasil
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