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Day SM, Gironda SC, Clarke CW, Snipes JA, Nicol NI, Kamran H, Vaughan W, Weiner JL, Macauley SL. Ethanol exposure alters Alzheimer's-related pathology, behavior, and metabolism in APP/PS1 mice. Neurobiol Dis 2023; 177:105967. [PMID: 36535550 PMCID: PMC10010148 DOI: 10.1016/j.nbd.2022.105967] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 12/02/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Epidemiological studies identified alcohol use disorder (AUD) as a risk factor for Alzheimer's disease (AD), yet there is conflicting evidence on how alcohol use promotes AD pathology. In this study, a 10-week moderate two-bottle choice drinking paradigm was used to identify how chronic ethanol exposure alters amyloid-β (Aβ)-related pathology, metabolism, and behavior. Ethanol-exposed APPswe/PSEN1dE9 (APP/PS1) mice showed increased brain atrophy and an increased number of amyloid plaques. Further analysis revealed that ethanol exposure led to a shift in the distribution of plaque size in the cortex and hippocampus. Ethanol-exposed mice developed a greater number of smaller plaques, potentially setting the stage for increased plaque proliferation in later life. Ethanol drinking APP/PS1 mice also exhibited deficits in nest building, a metric of self-care, as well as increased locomotor activity and central zone exploration in an open field test. Ethanol exposure also led to a diurnal shift in feeding behavior which was associated with changes in glucose homeostasis and glucose intolerance. Complementary in vivo microdialysis experiments were used to measure how acute ethanol directly modulates Aβ in the hippocampal interstitial fluid (ISF). Acute ethanol transiently increased hippocampal ISF glucose levels, suggesting that ethanol directly affects cerebral metabolism. Acute ethanol also selectively increased ISF Aβ40, but not ISF Aβ42, levels during withdrawal. Lastly, chronic ethanol drinking increased N-methyl-d-aspartate receptor (NMDAR) and decreased γ-aminobutyric acid type-A receptor (GABAAR) mRNA levels, indicating a potential hyperexcitable shift in the brain's excitatory/inhibitory (E/I) balance. Collectively, these experiments suggest that ethanol may increase Aβ deposition by disrupting metabolism and the brain's E/I balance. Furthermore, this study provides evidence that a moderate drinking paradigm culminates in an interaction between alcohol use and AD-related phenotypes with a potentiation of AD-related pathology, behavioral dysfunction, and metabolic impairment.
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Affiliation(s)
- Stephen M Day
- Department of Physiology & Pharmacology, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Stephen C Gironda
- Department of Physiology & Pharmacology, Wake Forest School of Medicine, Winston Salem, NC, United States; Department of Neurobiology & Anatomy, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Caitlin W Clarke
- Department of Physiology & Pharmacology, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - J Andy Snipes
- Department of Physiology & Pharmacology, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Noelle I Nicol
- Section on Gerontology & Geriatric Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Hana Kamran
- Section on Gerontology & Geriatric Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Warner Vaughan
- Section on Gerontology & Geriatric Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Jeffrey L Weiner
- Department of Physiology & Pharmacology, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Shannon L Macauley
- Department of Physiology & Pharmacology, Wake Forest School of Medicine, Winston Salem, NC, United States; Section on Gerontology & Geriatric Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States.
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2
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Wang YL, Wang JG, Guo S, Guo FL, Liu EJ, Yang X, Feng B, Wang JZ, Vreugdenhil M, Lu CB. Oligomeric β-Amyloid Suppresses Hippocampal γ-Oscillations through Activation of the mTOR/S6K1 Pathway. Aging Dis 2023:AD.2023.0123. [PMID: 37163441 PMCID: PMC10389838 DOI: 10.14336/ad.2023.0123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 01/23/2023] [Indexed: 05/12/2023] Open
Abstract
Neuronal synchronization at gamma frequency (30-100 Hz: γ) is impaired in early-stage Alzheimer's disease (AD) patients and AD models. Oligomeric Aβ1-42 caused a concentration-dependent reduction of γ-oscillation strength and regularity while increasing its frequency. The mTOR1 inhibitor rapamycin prevented the Aβ1-42-induced suppression of γ-oscillations, whereas the mTOR activator leucine mimicked the Aβ1-42-induced suppression. Activation of the downstream kinase S6K1, but not inhibition of eIF4E, was required for the Aβ1-42-induced suppression. The involvement of the mTOR/S6K1 signaling in the Aβ1-42-induced suppression was confirmed in Aβ-overexpressing APP/PS1 mice, where inhibiting mTOR or S6K1 restored degraded γ-oscillations. To assess the network changes that may underlie the mTOR/S6K1 mediated γ-oscillation impairment in AD, we tested the effect of Aβ1-42 on IPSCs and EPSCs recorded in pyramidal neurons. Aβ1-42 reduced EPSC amplitude and frequency and IPSC frequency, which could be prevented by inhibiting mTOR or S6K1. These experiments indicate that in early AD, oligomer Aβ1-42 impairs γ-oscillations by reducing inhibitory interneuron activity by activating the mTOR/S6K1 signaling pathway, which may contribute to early cognitive decline and provides new therapeutic targets.
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Affiliation(s)
- Ya-Li Wang
- Department of Physiology and Pathophysiology, Henan International Joint Laboratory of Non-Invasive Neuromodulation, Xinxiang Medical University, Xinxiang, China
| | - Jian-Gang Wang
- Department of Physiology and Pathophysiology, Henan International Joint Laboratory of Non-Invasive Neuromodulation, Xinxiang Medical University, Xinxiang, China
| | - Shuling Guo
- Department of Cardiovascular Medicine, Luminghu District, Xuchang Central Hospital, Xuchang, China
| | - Fang-Li Guo
- Department of Neurology, Anyang District Hospital of Puyang City, Anyang, China
| | - En-Jie Liu
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xin Yang
- Key Laboratory of Translational Research for Brain Diseases, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Bingyan Feng
- Department of Physiology and Pathophysiology, Henan International Joint Laboratory of Non-Invasive Neuromodulation, Xinxiang Medical University, Xinxiang, China
| | - Jian-Zhi Wang
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Martin Vreugdenhil
- Department of Life Sciences, Birmingham City University, Birmingham, UK
- Department of Psychology, Xinxiang Medical University, Xinxiang, China
| | - Cheng-Biao Lu
- Department of Physiology and Pathophysiology, Henan International Joint Laboratory of Non-Invasive Neuromodulation, Xinxiang Medical University, Xinxiang, China
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3
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Xie X, Li M, Feng B, Li J, Sun Z, Zhao Y, Lu C. The Cellular Mechanisms of Dopamine Modulation on the Neuronal Network Oscillations in the CA3 Area of Rat Hippocampal Slices. Neuroscience 2021; 475:83-92. [PMID: 34534635 DOI: 10.1016/j.neuroscience.2021.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 01/25/2023]
Abstract
Network oscillations at γ frequency band (30-80 Hz), generated by the interaction between inhibitory interneurons and excitatory neurons, have been proposed to be associated with higher brain functions such as learning and memory. Dopamine (DA), one of the major CNS transmitters, modulates hippocampal γ oscillations but the intracellular mechanisms involved remain elusive. In this study, we recorded kainate-induced γ oscillations in the CA3 area of rat hippocampal slices, and found that DA strongly enhanced γ power, which was largely blocked by dopamine receptor 1 (DR1) antagonist SCH23390, receptor tyrosine kinase (RTK) inhibitor UNC569 and ERK inhibitor U0126, partially blocked by D2/3R antagonist raclopride, PKA inhibitor H89 and PI3K inhibitor wortmannin, but not affected by AKT inhibitor TCBN or NMDAR antagonist D-AP5. Our results indicate that DA-mediated γ enhancement is involved in the activation of signaling pathway of DR1/2-RTK-ERK. Our data demonstrate a strong, rapid modulation of DA on hippocampal γ oscillations and provide a new insight into cellular mechanisms of DA-mediated γ oscillations.
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Affiliation(s)
- Xin'e Xie
- Henan International-Joint Laboratory for Non-invasive Neural Modulation/The Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang 453003, China; The Second Hospital of Jinhua, Jinhua, Zhejiang 321000, China
| | - Mingcan Li
- Henan International-Joint Laboratory for Non-invasive Neural Modulation/The Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang 453003, China; Key Laboratory of Clinical Psychopharmacology, School of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China
| | - Bingyan Feng
- Henan International-Joint Laboratory for Non-invasive Neural Modulation/The Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang 453003, China
| | - Junmei Li
- Henan International-Joint Laboratory for Non-invasive Neural Modulation/The Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang 453003, China
| | - Zhongyu Sun
- Henan International-Joint Laboratory for Non-invasive Neural Modulation/The Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang 453003, China
| | - Ying Zhao
- Key Laboratory of Clinical Psychopharmacology, School of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China
| | - Chengbiao Lu
- Henan International-Joint Laboratory for Non-invasive Neural Modulation/The Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang 453003, China.
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4
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Farooq U, Khan T, Shah SA, Hossain MS, Ali Y, Ullah R, Raziq N, Shahid M, Capasso R. Isolation, Characterization and Neuroprotective Activity of Folecitin: An In Vivo Study. Life (Basel) 2021; 11:825. [PMID: 34440569 PMCID: PMC8400650 DOI: 10.3390/life11080825] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 12/19/2022] Open
Abstract
Neurodegenerative diseases (NDs) extend the global health burden. Consumption of alcohol as well as maternal exposure to ethanol can damage several neuronal functions and cause cognition and behavioral abnormalities. Ethanol induces oxidative stress that is linked to the development of NDs. Treatment options for NDs are yet scarce, and natural product-based treatments could facilitate ND management since plants possess plenty of bioactive metabolites, including flavonoids, which typically demonstrate antioxidant and anti-inflammatory properties. Hypericum oblongifolium is an important traditional medicinal plant used for hepatitis, gastric ulcer, external wounds, and other gastrointestinal disorders. However, it also possesses multiple bioactive compounds and antioxidant properties, but the evaluation of isolated pure compounds for neuroprotective efficacy has not been done yet. Therefore, in the current study, we aim to isolate and characterize the bioactive flavonoid folecitin and evaluate its neuroprotective activity against ethanol-induced oxidative-stress-mediated neurodegeneration in the hippocampus of postnatal day 7 (PND-7) rat pups. A single dose of ethanol (5 g/kg body weight) was intraperitoneally administered after the birth of rat pups on PND-7. This caused oxidative stress accompanied by the activation of phosphorylated-c-Jun N-terminal kinase (p-JNK), nod-like receptor family pyrin domain containing 3 (NLRP3), apoptosis-associated speck-like protein (ASC), and cysteine-aspartic acid protease-1 (caspase-1) proteins to form a complex called the NLRP3-inflammasome, which converts pro-interleukin 1 beta (IL-1B) to activate IL-1B and induce widespread neuroinflammation and neurodegeneration. In contrast, co-administration of folecitin (30 mg/kg body weight) reduced ethanol-induced oxidative stress, inhibited p-JNK, and deactivated the NLRP3-inflammasome complex. Furthermore, folecitin administration reduced neuroinflammatory and neurodegenerative protein markers, including decreased caspase-3, BCL-2-associated X protein (BAX), B cell CLL/lymphoma 2 (BCL-2), and poly (ADP-ribose) polymerase-1 (PARP-1) expression in the immature rat brain. These findings conclude that folecitin is a flavone compound, and it might be a novel, natural and safe agent to curb oxidative stress and its downstream harmful effects, including inflammasome activation, neuroinflammation, and neurodegeneration. Further evaluation in a dose-dependent manner would be worth it in order to find a suitable dose regimen for NDs.
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Affiliation(s)
- Umar Farooq
- Department of Pharmacy, Abbottabad Campus, COMSATS University Islamabad, Abbottabad 22060, Pakistan;
| | - Taous Khan
- Department of Pharmacy, Abbottabad Campus, COMSATS University Islamabad, Abbottabad 22060, Pakistan;
| | - Shahid Ali Shah
- Department of Chemistry, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan; (S.A.S.); (Y.A.)
- Neuromolecular Medicine Research Center, Ring Road, Peshawar 25000, Pakistan
| | - Md. Sanower Hossain
- Department of Biomedical Science, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia, Kuantan 25200, Malaysia
- Faculty of Science, Sristy College of Tangail, Tangail 1900, Bangladesh
| | - Yousaf Ali
- Department of Chemistry, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan; (S.A.S.); (Y.A.)
| | - Rahim Ullah
- Department of Pharmacy, University of Peshawar, Peshawar 25120, Pakistan;
| | - Naila Raziq
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan; (N.R.); (M.S.)
| | - Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan; (N.R.); (M.S.)
| | - Raffaele Capasso
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
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5
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Farooq U, Khan T, Shah SA, Hossain MS, Ali Y, Ullah R, Raziq N, Shahid M, Capasso R. Isolation, Characterization and Neuroprotective Activity of Folecitin: An In Vivo Study. LIFE (BASEL, SWITZERLAND) 2021. [PMID: 34440569 DOI: 10.3390/life11080825/s1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Neurodegenerative diseases (NDs) extend the global health burden. Consumption of alcohol as well as maternal exposure to ethanol can damage several neuronal functions and cause cognition and behavioral abnormalities. Ethanol induces oxidative stress that is linked to the development of NDs. Treatment options for NDs are yet scarce, and natural product-based treatments could facilitate ND management since plants possess plenty of bioactive metabolites, including flavonoids, which typically demonstrate antioxidant and anti-inflammatory properties. Hypericum oblongifolium is an important traditional medicinal plant used for hepatitis, gastric ulcer, external wounds, and other gastrointestinal disorders. However, it also possesses multiple bioactive compounds and antioxidant properties, but the evaluation of isolated pure compounds for neuroprotective efficacy has not been done yet. Therefore, in the current study, we aim to isolate and characterize the bioactive flavonoid folecitin and evaluate its neuroprotective activity against ethanol-induced oxidative-stress-mediated neurodegeneration in the hippocampus of postnatal day 7 (PND-7) rat pups. A single dose of ethanol (5 g/kg body weight) was intraperitoneally administered after the birth of rat pups on PND-7. This caused oxidative stress accompanied by the activation of phosphorylated-c-Jun N-terminal kinase (p-JNK), nod-like receptor family pyrin domain containing 3 (NLRP3), apoptosis-associated speck-like protein (ASC), and cysteine-aspartic acid protease-1 (caspase-1) proteins to form a complex called the NLRP3-inflammasome, which converts pro-interleukin 1 beta (IL-1B) to activate IL-1B and induce widespread neuroinflammation and neurodegeneration. In contrast, co-administration of folecitin (30 mg/kg body weight) reduced ethanol-induced oxidative stress, inhibited p-JNK, and deactivated the NLRP3-inflammasome complex. Furthermore, folecitin administration reduced neuroinflammatory and neurodegenerative protein markers, including decreased caspase-3, BCL-2-associated X protein (BAX), B cell CLL/lymphoma 2 (BCL-2), and poly (ADP-ribose) polymerase-1 (PARP-1) expression in the immature rat brain. These findings conclude that folecitin is a flavone compound, and it might be a novel, natural and safe agent to curb oxidative stress and its downstream harmful effects, including inflammasome activation, neuroinflammation, and neurodegeneration. Further evaluation in a dose-dependent manner would be worth it in order to find a suitable dose regimen for NDs.
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Affiliation(s)
- Umar Farooq
- Department of Pharmacy, Abbottabad Campus, COMSATS University Islamabad, Abbottabad 22060, Pakistan
| | - Taous Khan
- Department of Pharmacy, Abbottabad Campus, COMSATS University Islamabad, Abbottabad 22060, Pakistan
| | - Shahid Ali Shah
- Department of Chemistry, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan
- Neuromolecular Medicine Research Center, Ring Road, Peshawar 25000, Pakistan
| | - Md Sanower Hossain
- Department of Biomedical Science, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia, Kuantan 25200, Malaysia
- Faculty of Science, Sristy College of Tangail, Tangail 1900, Bangladesh
| | - Yousaf Ali
- Department of Chemistry, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan
| | - Rahim Ullah
- Department of Pharmacy, University of Peshawar, Peshawar 25120, Pakistan
| | - Naila Raziq
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan
| | - Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar 25000, Pakistan
| | - Raffaele Capasso
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
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6
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The Role of Gamma Oscillations in the Pathophysiology of Substance Use Disorders. J Pers Med 2020; 11:jpm11010017. [PMID: 33379187 PMCID: PMC7824040 DOI: 10.3390/jpm11010017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/21/2020] [Accepted: 12/24/2020] [Indexed: 11/17/2022] Open
Abstract
Substance use disorders (SUDs) are a major public health problem—with over 200 million people reporting drug use in 2016. Electroencephalography (EEG) is a powerful tool that can provide insights into the impact of SUDs on cognition. Specifically, modulated gamma activity may provide an index of the pathophysiology of SUDs. Thus, the purpose of this review was to investigate the impact of alcohol, tobacco, cannabis, cocaine, and amphetamine on gamma activity, among pre-clinical and clinical populations during acute and chronic exposure and withdrawal states. We searched multiple databases for key terms related to SUDs, EEG, and gamma and ensured rigorous methods by using a standardized review reporting tool. We included 30 studies in this review and found that all substances were associated with modulation of gamma activity, across states and in both preclinical and clinical populations. Gamma oscillations appeared to be differentially modulated in clinical versus preclinical populations and had the most complex relationship with alcohol, indicating that it may act differently than other substances. The findings of this review offer insights into the pathophysiology of SUDs, providing a potential window into novel treatments for SUDs via modulation of gamma activity.
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7
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Wang J, Gao X, Wang Y, Wang M, Ge C, Liu Z, Xie XE, Chen Z, Song J, Lu C. The physiological modulation by intracellular kinases of hippocampal γ-oscillation in vitro. Am J Physiol Cell Physiol 2020; 318:C879-C888. [PMID: 32023074 DOI: 10.1152/ajpcell.00199.2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Hippocampal network oscillations at gamma frequency band (γ-oscillation, 20-80 Hz) are synchronized synaptic activities generated by the interactions between the excitatory and inhibitory interneurons and are associated with higher brain function such as learning and memory. Despite extensive studies about the modulation of intracellular kinases on synaptic transmission and plasticity, little is known about the effects of these kinases on γ-oscillations. In this study, we examined the effects of several critical intracellular kinases such as cyclic AMP-dependent protein kinase (PKA), protein kinase B (PKB)/Akt, protein kinase C (PKC), extracellular-regulated protein kinases (ERK) and AMP-activated protein kinase (AMPK), known to regulate synaptic transmission, on hippocampal γ-oscillations in vitro. We found that AMPK inhibitor but not PKA, PKC, or ERK inhibitor, strongly enhanced the power of γ-oscillation (γ-power) and that Akt inhibitor weakly increased γ-power. Western blot analysis confirmed that AMPK inhibitor reduced the expression of p-AMPK but not total AMPK. By using the slice whole cell voltage-clamp technique, we found that AMPK inhibitor increased the frequency but not amplitude of spontaneous inhibitory postsynaptic currents (sIPSC) and had no effect on either frequency or amplitude of spontaneous excitatory postsynaptic currents (sEPSC). Therefore, AMPK activation negatively modulates hippocampal γ-oscillation via modulation of the inhibitory neurons.
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Affiliation(s)
- JianGang Wang
- International Joint Lab of Noninvasive Neural Modulation of Henan Province, Department of Neurobiology and Physiology, Xinxiang Medical University, Xinxiang, China.,Department of Pathophysiology, Xinxiang Medical University, Xinxiang, China.,Henan Key Laboratory of Neurorestoratology, The first Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, People's Republic of China.,The Second Affiliated Hospital of Xinxiang Medical University, Henan Key Laboratory of Biological Psychiatry, Xinxiang Medical University, Xinxiang, People's Republic of China
| | - XiaHuan Gao
- International Joint Lab of Noninvasive Neural Modulation of Henan Province, Department of Neurobiology and Physiology, Xinxiang Medical University, Xinxiang, China.,Department of Pathophysiology, Xinxiang Medical University, Xinxiang, China
| | - YaLi Wang
- International Joint Lab of Noninvasive Neural Modulation of Henan Province, Department of Neurobiology and Physiology, Xinxiang Medical University, Xinxiang, China
| | - MengMeng Wang
- International Joint Lab of Noninvasive Neural Modulation of Henan Province, Department of Neurobiology and Physiology, Xinxiang Medical University, Xinxiang, China
| | - ChunBo Ge
- International Joint Lab of Noninvasive Neural Modulation of Henan Province, Department of Neurobiology and Physiology, Xinxiang Medical University, Xinxiang, China
| | - ZhiHua Liu
- International Joint Lab of Noninvasive Neural Modulation of Henan Province, Department of Neurobiology and Physiology, Xinxiang Medical University, Xinxiang, China
| | - Xin-E Xie
- International Joint Lab of Noninvasive Neural Modulation of Henan Province, Department of Neurobiology and Physiology, Xinxiang Medical University, Xinxiang, China
| | - ZhengYue Chen
- International Joint Lab of Noninvasive Neural Modulation of Henan Province, Department of Neurobiology and Physiology, Xinxiang Medical University, Xinxiang, China.,Department of Pathophysiology, Xinxiang Medical University, Xinxiang, China
| | - JingGui Song
- The Second Affiliated Hospital of Xinxiang Medical University, Henan Key Laboratory of Biological Psychiatry, Xinxiang Medical University, Xinxiang, People's Republic of China
| | - ChengBiao Lu
- International Joint Lab of Noninvasive Neural Modulation of Henan Province, Department of Neurobiology and Physiology, Xinxiang Medical University, Xinxiang, China.,Department of Pathophysiology, Xinxiang Medical University, Xinxiang, China
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8
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Li Y, Xie X, Xing H, Yuan X, Wang Y, Jin Y, Wang J, Vreugdenhil M, Zhao Y, Zhang R, Lu C. The Modulation of Gamma Oscillations by Methamphetamine in Rat Hippocampal Slices. Front Cell Neurosci 2019; 13:277. [PMID: 31281244 PMCID: PMC6598082 DOI: 10.3389/fncel.2019.00277] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 06/07/2019] [Indexed: 12/18/2022] Open
Abstract
Gamma frequency oscillations (γ, 30–100 Hz) have been suggested to underlie various cognitive and motor functions. The psychotomimetic drug methamphetamine (MA) enhances brain γ oscillations associated with changes in psychomotor state. Little is known about the cellular mechanisms of MA modulation on γ oscillations. We explored the effects of multiple intracellular kinases on MA modulation of γ induced by kainate in area CA3 of rat ventral hippocampal slices. We found that dopamine receptor type 1 and 2 (DR1 and DR2) antagonists, the serine/threonine kinase PKB/Akt inhibitor and N-methyl-D-aspartate receptor (NMDAR) antagonists prevented the enhancing effect of MA on γ oscillations, whereas none of them affected baseline γ strength. Protein kinase A, phosphoinositide 3-kinase and extracellular signal-related kinases inhibitors had no effect on MA. We propose that the DR1/DR2-Akt-NMDAR pathway plays a critical role for the MA enhancement of γ oscillations. Our study provides an new insight into the mechanisms of acute MA on MA-induced psychosis.
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Affiliation(s)
- Yanan Li
- The Second Affiliated Hospital, Xinxiang Medical University, Xinxiang, China.,Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Xin'e Xie
- Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Hang Xing
- Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang, China.,Department of Neurology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Xiang Yuan
- The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, China
| | - Yuan Wang
- Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Yikai Jin
- Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Jiangang Wang
- Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Martin Vreugdenhil
- Department of Health Sciences, Birmingham City University, Birmingham, United Kingdom
| | - Ying Zhao
- Key Laboratory of Clinical Psychopharmacology, School of Pharmacy, Xinxiang Medical University, Xinxiang, China
| | - Ruiling Zhang
- The Second Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Chengbiao Lu
- The Second Affiliated Hospital, Xinxiang Medical University, Xinxiang, China.,Key Laboratory for the Brain Research of Henan Province, Department of Physiology, Xinxiang Medical University, Xinxiang, China
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9
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Scarnati MS, Halikere A, Pang ZP. Using human stem cells as a model system to understand the neural mechanisms of alcohol use disorders: Current status and outlook. Alcohol 2019; 74:83-93. [PMID: 30087005 DOI: 10.1016/j.alcohol.2018.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 03/21/2018] [Accepted: 03/21/2018] [Indexed: 01/23/2023]
Abstract
Alcohol use disorders (AUDs), which include alcohol abuse and dependence, are among the most common types of neuropsychiatric disorders in the United States (U.S.). Approximately 14% of the U.S. population is affected in a single year, thus placing a tremendous burden on individuals from all socioeconomic backgrounds. Animal models have been pivotal in revealing the basic mechanisms of how alcohol impacts neuronal function, yet there are currently limited effective therapies developed based on these studies. This is mainly due to a limited understanding of the exact cellular and molecular mechanisms underlying AUDs in humans, which leads to a lack of targeted therapeutics. Furthermore, compounding factors including genetic background, gene copy number variants, single nucleotide polymorphisms (SNP) as well as environmental and social factors that affect and promote the development of AUDs are complex and heterogeneous. Recent developments in stem cell biology, especially the human induced pluripotent stem (iPS) cell development and differentiation technologies, has provided us a unique opportunity to model neuropsychiatric disorders like AUDs in a manner that is highly complementary to animal studies, but that maintains fidelity with complex human genetic contexts. Patient-specific neuronal cells derived from iPS cells can then be used for drug discovery and precision medicine, e.g. for pathway-directed development in alcoholism. Here, we review recent work employing iPS cell technology to model and elucidate the genetic, molecular and cellular mechanisms of AUDs in a human neuronal background and provide our perspective on future development in this direction.
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Affiliation(s)
- Matthew S Scarnati
- Child Health Institute of New Jersey, Rutgers University-Robert Wood Johnson Medical School, Room 3233D, 89 French Street, New Brunswick, NJ 08901, USA; Department of Neuroscience and Cell Biology, Rutgers University-Robert Wood Johnson Medical School, Room 3233D, 89 French Street, New Brunswick, NJ 08901, USA.
| | - Apoorva Halikere
- Child Health Institute of New Jersey, Rutgers University-Robert Wood Johnson Medical School, Room 3233D, 89 French Street, New Brunswick, NJ 08901, USA; Department of Neuroscience and Cell Biology, Rutgers University-Robert Wood Johnson Medical School, Room 3233D, 89 French Street, New Brunswick, NJ 08901, USA
| | - Zhiping P Pang
- Child Health Institute of New Jersey, Rutgers University-Robert Wood Johnson Medical School, Room 3233D, 89 French Street, New Brunswick, NJ 08901, USA; Department of Neuroscience and Cell Biology, Rutgers University-Robert Wood Johnson Medical School, Room 3233D, 89 French Street, New Brunswick, NJ 08901, USA.
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10
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Sun W, Li X, Tang C, An L. Acute Low Alcohol Disrupts Hippocampus-Striatum Neural Correlate of Learning Strategy by Inhibition of PKA/CREB Pathway in Rats. Front Pharmacol 2018; 9:1439. [PMID: 30574089 PMCID: PMC6291496 DOI: 10.3389/fphar.2018.01439] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 11/22/2018] [Indexed: 11/30/2022] Open
Abstract
The hippocampus and striatum guide place-strategy and response-strategy learning, respectively, and they have dissociable roles in memory systems, which could compensate in case of temporary or permanent damage. Although acute alcohol (AA) treatment had been shown to have adverse effects on hippocampal function, whether it causes the functional compensation and the underlying mechanisms is unknown. In this study, rats treated with a low dose of AA avoided a hippocampus-dependent spatial strategy, instead preferring a striatum-dependent response strategy. Consistently, the learning-induced increase in hippocampal, but not striatal, pCREB was rendered less pronounced due to diminished activity of pPKA, but not pERK or pCaMKII. As rats approached the turn-decision area, Sp-cAMP, a PKA activator, was found to mitigate the inhibitory effect of AA on intra- and cross-structure synchronized neuronal oscillations, and rescue response-strategy bias and spatial learning deficits. Our study provides strong evidence of the critical link between neural couplings and strategy selection. Moreover, the PKA/CREB-signaling pathway is involved in the suppressive effect of AA on neural correlates of place-learning strategy. The novel important evidence provided here shows the functional couplings between the hippocampus and striatum in spatial learning processing and suggests possible avenues for therapeutic intervention.
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Affiliation(s)
- Wei Sun
- Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoliang Li
- Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chunzhi Tang
- Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lei An
- Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China.,College of Acupuncture-Moxibustion and Orthopedics, Guiyang University of Chinese Medicine, Guiyang, China.,Department of Physiology, University of Saskatchewan, Saskatoon, SK, Canada
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11
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Wang YL, Wang JG, Guo FL, Gao XH, Zhao DD, Zhang L, Wang JZ, Lu CB. Selective dopamine receptor 4 activation mediates the hippocampal neuronal calcium response via IP 3 and ryanodine receptors. Brain Res 2017; 1670:1-5. [DOI: 10.1016/j.brainres.2017.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 01/21/2023]
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12
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Wang J, He X, Guo F, Cheng X, Wang Y, Wang X, Feng Z, Vreugdenhil M, Lu C. Multiple Kinases Involved in the Nicotinic Modulation of Gamma Oscillations in the Rat Hippocampal CA3 Area. Front Cell Neurosci 2017; 11:57. [PMID: 28321180 PMCID: PMC5337687 DOI: 10.3389/fncel.2017.00057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 02/15/2017] [Indexed: 11/29/2022] Open
Abstract
Neuronal synchronization at gamma band frequency (20–80 Hz, γ oscillations) is closely associated with higher brain function, such as learning, memory and attention. Nicotinic acetylcholine receptors (nAChRs) are highly expressed in the hippocampus, and modulate hippocampal γ oscillations, but the intracellular mechanism underlying such modulation remains elusive. We explored multiple kinases by which nicotine can modulate γ oscillations induced by kainate in rat hippocampal area CA3 in vitro. We found that inhibitors of cyclic AMP dependent kinase (protein kinase A, PKA), protein kinase C (PKC), N-methyl-D-aspartate receptor (NMDA) receptors, Phosphoinositide 3-kinase (PI3K) and extracellular signal-related kinases (ERK), each individually could prevent the γ oscillation-enhancing effect of 1 μM nicotine, whereas none of them affected baseline γ oscillation strength. Inhibition of the serine/threonine kinase Akt increased baseline γ oscillations and partially blocked its nicotinic enhancement. We propose that the PKA-NMDAR-PI3K-ERK pathway modifies cellular properties required for the nicotinic enhancement of γ oscillations, dependent on a PKC-ERK mediated pathway. These signaling pathways provide clues for restoring γ oscillations in pathological conditions affecting cognition. The suppression of γ oscillations at 100 μM nicotine was only dependent on PKA-NMDAR activation and may be due to very high intracellular calcium levels.
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Affiliation(s)
- JianGang Wang
- Key Laboratory for the Brain Research of Henan Province, Xinxiang Medical UniversityXinxinang, China; Department of Pathophysiology, Xinxiang Medical UniversityXinxinang, China
| | - XiaoLong He
- Key Laboratory of Neuronal Oscillation and Disease, Yantze University Medical School JingZhou, China
| | - Fangli Guo
- Key Laboratory for the Brain Research of Henan Province, Xinxiang Medical UniversityXinxinang, China; Department of Neurobiology and Physiology, Xinxiang Medical UniversityXinxinang, China
| | - XiangLin Cheng
- Department of Laboratory Medicine, Yantze University Affiliated Hospital JingZhou, China
| | - Yali Wang
- Key Laboratory for the Brain Research of Henan Province, Xinxiang Medical UniversityXinxinang, China; Department of Neurobiology and Physiology, Xinxiang Medical UniversityXinxinang, China
| | - XiaoFang Wang
- Key Laboratory for the Brain Research of Henan Province, Xinxiang Medical University Xinxinang, China
| | - ZhiWei Feng
- Key Laboratory for the Brain Research of Henan Province, Xinxiang Medical University Xinxinang, China
| | - Martin Vreugdenhil
- Department of Psychology, Xinxiang Medical UniversityXinxinang, China; School of Life Sciences, Birmingham City UniversityBirmingham, UK
| | - ChengBiao Lu
- Key Laboratory for the Brain Research of Henan Province, Xinxiang Medical UniversityXinxinang, China; Key Laboratory of Neuronal Oscillation and Disease, Yantze University Medical SchoolJingZhou, China; Department of Neurobiology and Physiology, Xinxiang Medical UniversityXinxinang, China
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13
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Gioia DA, McCool B. Strain-Dependent Effects of Acute Alcohol on Synaptic Vesicle Recycling and Post-Tetanic Potentiation in Medial Glutamate Inputs to the Mouse Basolateral Amygdala. Alcohol Clin Exp Res 2017; 41:735-746. [PMID: 28118494 DOI: 10.1111/acer.13343] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 01/14/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Inbred mouse strains are differentially sensitive to the acute effects of ethanol (EtOH) and are useful tools for examining how unique genomes differentially affect alcohol-related behaviors and physiology. DBA/2J mice have been shown to be sensitive to the acute anxiolytic effects of alcohol as well as the anxiogenic effects of withdrawal from chronic alcohol exposure, while B6 mice are resistant to both. Considering that the basolateral amygdala (BLA) is an important brain region for the acute and chronic effects of EtOH on fear and anxiety related behaviors, we hypothesized that there would be strain-dependent differences in the acute effects of EtOH in BLA slices. METHODS We utilized patch clamp electrophysiology in BLA coronal slices from 4 inbred mouse strains (A/J, BALBcJ, C57BL/6J, and DBA/2J) to examine how genetic background influences acute EtOH effects on synaptic vesicle recycling and post-tetanic potentiation (PTP) in response to low (2 Hz)- and high (40 Hz)-frequency stimulation. RESULTS We found that EtOH inhibited synaptic vesicle recycling in a strain- and stimulation frequency-dependent manner. Vesicle recycling in DBA/2J and BALBcJ cells was inhibited by acute EtOH during both low- and high-frequency stimulation, while recycling measured from A/J cells was sensitive only during high-frequency stimulation. Recycling at C57BL/6J synapses was insensitive to EtOH regardless of stimulation frequency. We additionally found that cells from DBA/2J and BALBcJ mice were sensitive to EtOH-mediated inhibition of PTP. CONCLUSIONS Acute EtOH application inhibited vesicle recycling and PTP at glutamatergic synapses in both a strain- and frequency-dependent fashion. Several presynaptic proteins that contribute to synaptic vesicle priming in addition to PTP have been implicated in alcohol-related behaviors, including Munc13, Munc18, and RIM proteins, making them potential candidates for the molecular mechanism controlling these effects.
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Affiliation(s)
- Dominic A Gioia
- Department of Physiology & Pharmacology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Brian McCool
- Department of Physiology & Pharmacology, Wake Forest School of Medicine, Winston-Salem, North Carolina
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