1
|
Chapman CA, Nuwer JL, Jacob TC. The Yin and Yang of GABAergic and Glutamatergic Synaptic Plasticity: Opposites in Balance by Crosstalking Mechanisms. Front Synaptic Neurosci 2022; 14:911020. [PMID: 35663370 PMCID: PMC9160301 DOI: 10.3389/fnsyn.2022.911020] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/26/2022] [Indexed: 01/12/2023] Open
Abstract
Synaptic plasticity is a critical process that regulates neuronal activity by allowing neurons to adjust their synaptic strength in response to changes in activity. Despite the high proximity of excitatory glutamatergic and inhibitory GABAergic postsynaptic zones and their functional integration within dendritic regions, concurrent plasticity has historically been underassessed. Growing evidence for pathological disruptions in the excitation and inhibition (E/I) balance in neurological and neurodevelopmental disorders indicates the need for an improved, more "holistic" understanding of synaptic interplay. There continues to be a long-standing focus on the persistent strengthening of excitation (excitatory long-term potentiation; eLTP) and its role in learning and memory, although the importance of inhibitory long-term potentiation (iLTP) and depression (iLTD) has become increasingly apparent. Emerging evidence further points to a dynamic dialogue between excitatory and inhibitory synapses, but much remains to be understood regarding the mechanisms and extent of this exchange. In this mini-review, we explore the role calcium signaling and synaptic crosstalk play in regulating postsynaptic plasticity and neuronal excitability. We examine current knowledge on GABAergic and glutamatergic synapse responses to perturbances in activity, with a focus on postsynaptic plasticity induced by short-term pharmacological treatments which act to either enhance or reduce neuronal excitability via ionotropic receptor regulation in neuronal culture. To delve deeper into potential mechanisms of synaptic crosstalk, we discuss the influence of synaptic activity on key regulatory proteins, including kinases, phosphatases, and synaptic structural/scaffolding proteins. Finally, we briefly suggest avenues for future research to better understand the crosstalk between glutamatergic and GABAergic synapses.
Collapse
Affiliation(s)
| | | | - Tija C. Jacob
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| |
Collapse
|
2
|
Li AS, Iijima A, Huang J, Li QX, Chen Y. Putative Mode of Action of the Monoterpenoids Linalool, Methyl Eugenol, Estragole, and Citronellal on Ligand-Gated Ion Channels. ENGINEERING (BEIJING, CHINA) 2020; 6:541-545. [PMID: 38274392 PMCID: PMC10810144 DOI: 10.1016/j.eng.2019.07.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Essential oil has been used as sedatives, anticonvulsants, and local anesthetics in traditional medical remedies; as preservatives for food, fruit, vegetable, and grain storage; and as bio-pesticides for food production. Linalool (LL), along with a few other major components such as methyl eugenol (ME), estragole (EG), and citronellal, are the active chemicals in many essential oils such as basil oil. Basil oil and the aforementioned monoterpenoids are potent against insect pests. However, the molecular mechanism of action of these chemical constituents is not well understood. It is well-known that the γ-aminobutyric acid type A receptors (GABAARs) and nicotinic acetylcholine receptor (nAChR) are primary molecular targets of the synthetic insecticides used in the market today. Furthermore, the GABAAR-targeted therapeutics have been used in clinics for many decades, including barbiturates and benzodiazepines, to name just a few. In this research, we studied the electrophysiological effects of LL, ME, EG, and citronellal on GABAAR and nAChR to further understand their versatility as therapeutic agents in traditional remedies and as insecticides. Our results revealed that LL inhibits both GABAAR and nAChR, which may explain its insecticidal activity. LL is a concentration-dependent, non-competitive inhibitor on GABAAR, as the half-maximal effective concentration (EC50) values of γ-aminobutyric acid (GABA) for the rat α1β3γ2L GABAAR were not affected by LL: (36.2 ± 7.9) μmol·L-1 and (36.1 ± 23.8) μmol·L-1 in the absence and presence of 5 mmol·L-1 LL, respectively. The half-maximal inhibitory concentration (IC50) of LL on GABAAR was approximately 3.2 mmol·L-1. Considering that multiple monoterpenoids are found within the same essential oil, it is likely that LL has a synergistic effect with ME, which has been previously characterized as both a GABAAR agonist and a positive allosteric modulator, and with other monoterpenoids, which offers a possible explanation for the sedative and anticonvulsant effects and the insecticidal activities of LL.
Collapse
Affiliation(s)
- Amy S. Li
- College of Natural and Computational Sciences, Hawaii Pacific University, Kaneohe, HI 96744, USA
- Department of Internal Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Akimasa Iijima
- College of Natural and Computational Sciences, Hawaii Pacific University, Kaneohe, HI 96744, USA
| | - Junhao Huang
- College of Natural and Computational Sciences, Hawaii Pacific University, Kaneohe, HI 96744, USA
| | - Qing X. Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Yongli Chen
- College of Natural and Computational Sciences, Hawaii Pacific University, Kaneohe, HI 96744, USA
| |
Collapse
|
3
|
Liu P, Qin D, Huang X, Chen H, Ye W, Lin X, Su J. Neurotoxicity of sodium salicylate to the spiral ganglion neurons: GABA A receptor regulates NMDA receptor by Fyn-dependent phosphorylation. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2019; 205:469-479. [PMID: 31020389 DOI: 10.1007/s00359-019-01339-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 04/12/2019] [Accepted: 04/15/2019] [Indexed: 11/25/2022]
Abstract
The purpose of this study was to observe the regulatory effects of GABAA (γ-aminobutyric acid A) receptor on the N-methyl-D-aspartate (NMDA) receptor during excitotoxicity in spiral ganglion neurons in the rat cochlea induced by sodium salicylate (SS). Western blot illustrated SS decreased the expression of NMDA receptor 2B subunit (NR2B) surface protein through affecting GABAA receptor, but the total protein content did not significantly change. Y1472 and S1480 are important phosphorylation sites in NR2B, SS downregulated the Fyn-dependent phosphorylation of Y1472 in a manner not related to the CK2 (Casein Kinase 2) dependent phosphorylation of S1480, thus regulating the surface distribution and internalization of NMDA receptor through GABAA receptor. These results suggest that the modified pattern of dynamic balance between excitation and inhibition by coactivation of the GABAA receptor can attenuate the excitatory NMDA receptor under the action of SS, via inhibiting the Fyn-dependent phosphorylation of Y1472.
Collapse
Affiliation(s)
- Peiqiang Liu
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Danxue Qin
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Xi Huang
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
- Department of Otolaryngology-Head and Neck Surgery, Wuhan No. 1 Hospital, Wuhan, 430022, Hubei, China
| | - Huiying Chen
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Wenhua Ye
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Xiaoyu Lin
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Jiping Su
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.
| |
Collapse
|
4
|
Qin D, Liu P, Chen H, Huang X, Ye W, Lin X, Wei F, Su J. Salicylate-Induced Ototoxicity of Spiral Ganglion Neurons: Ca 2+/CaMKII-Mediated Interaction Between NMDA Receptor and GABA A Receptor. Neurotox Res 2019; 35:838-847. [PMID: 30820888 DOI: 10.1007/s12640-019-0006-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/21/2019] [Accepted: 01/24/2019] [Indexed: 10/27/2022]
Abstract
Sodium salicylate (SS) is one of the nonsteroidal anti-inflammatory drugs and widely used in clinical practice. Therefore, we aimed to investigate the potential ototoxicity mechanism of sodium salicylate: the influence of Ca2+/calmodulin-dependent protein kinase II (Ca2+/CaMKII) in interaction between NMDA receptors (NMDAR) and GABAA receptors (GABAAR) in rat cochlear spiral ganglion neurons (SGNs). After treatment with SS, NMDA, and an NMDAR inhibitor (APV), the changes of GABAAR β3 (GABR β3) mRNA, surface and total protein, and GABAAR currents in SGNs were assessed by quantitative PCR, Western blot, and whole-cell patch clamp. Mechanistically, SS and/or NMDA increased the GABR β3 mRNA expression, while decreased GABR β3 surface protein levels and GABAAR-mediated currents. Moreover, application of SS and/or NMDA showed promotion in phosphorylation levels at S383 of GABR β3. Collectively, Ca2+ chelator (BAPTA) or Ca2+/CaMKII inhibitor (KN-93) reversed the effects of SS and/or NMDA on GABAAR. Therefore, we hypothesize that the interaction between NMDAR and GABAAR is involved in the SGNs damage induced by SS. In addition, the underlying molecular mechanism is related to Ca2+/CaMKII-mediated signaling pathway, which suggests that the interaction between calcium signal-regulated receptors mediates SS ototoxicity.
Collapse
Affiliation(s)
- Danxue Qin
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Peiqiang Liu
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Huiying Chen
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Xi Huang
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.,Department of Otolaryngology-Head and Neck Surgery, Wuhan No.1 Hospital, Wuhan, 430022, Hubei, China
| | - Wenhua Ye
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Xiaoyu Lin
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Fangyu Wei
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Jiping Su
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.
| |
Collapse
|
5
|
Liu Q, Li Y, Liu Y, Zhao Y, Li X, Zhang Y, Wang C, Huang W, Wang X. A dopamine D1 receptor agonist improved learning and memory in morphine-treated rats. Neurol Res 2018; 40:1080-1087. [DOI: 10.1080/01616412.2018.1519946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Qiaofeng Liu
- Department of Pathology and Pathophysiology, Basic Medical College, Chengdu Medical College, Chengdu, China
| | - Yanxia Li
- School of Pharmacy, Chengdu Medical College, Chengdu, China
| | - Yang Liu
- School of Nursing, Chengdu Medical College, Chengdu, China
| | - Yanshuang Zhao
- School of Pharmacy, Chengdu Medical College, Chengdu, China
| | - Xuemei Li
- School of Pharmacy, Chengdu Medical College, Chengdu, China
| | - Yiping Zhang
- School of Pharmacy, Chengdu Medical College, Chengdu, China
| | - Chenyi Wang
- Department of Pathogenic Biology, Chengdu Medical College, Chengdu, China
| | - Wenli Huang
- Institute of Biotechnology and Nuclear Technology, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Xin Wang
- Department of Pathogenic Biology, Chengdu Medical College, Chengdu, China
| |
Collapse
|
6
|
Marchi M, Grilli M, Pittaluga AM. Nicotinic modulation of glutamate receptor function at nerve terminal level: a fine-tuning of synaptic signals. Front Pharmacol 2015; 6:89. [PMID: 25972809 PMCID: PMC4413670 DOI: 10.3389/fphar.2015.00089] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/10/2015] [Indexed: 11/13/2022] Open
Abstract
This review focuses on a specific interaction occurring between the nicotinic cholinergic receptors (nAChRs) and the glutamatergic receptors (GluRs) at the nerve endings level. We have employed synaptosomes in superfusion and supplemented and integrated our findings with data obtained using techniques from molecular biology and immuno-cytochemistry, and the assessment of receptor trafficking. In particular, we characterize the following: (1) the direct and unequivocal localization of native α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and N-methyl-D-aspartate (NMDA) glutamatergic receptors on specific nerve terminals, (2) their pharmacological characterization and functional co-localization with nAChRs on the same nerve endings, and (3) the existence of synergistic or antagonistic interactions among them. Indeed, in the rat nucleus accumbens (NAc), the function of some AMPA and NMDA receptors present on the dopaminergic and glutamatergic nerve terminals can be regulated negatively or positively in response to a brief activation of nAChRs. This effect occurs rapidly and involves the trafficking of AMPA and NMDA receptors. The event takes place also at very low concentrations of nicotine and involves the activation of several nAChRs subtypes. This dynamic control by cholinergic nicotinic system of glutamatergic NMDA and AMPA receptors might therefore represent an important neuronal presynaptic adaptation associated with nicotine administration. The understanding of the role of these nicotine-induced functional changes might open new and interesting perspectives both in terms of explaining the mechanisms that underlie some of the effects of nicotine addiction and in the development of new drugs for smoking cessation.
Collapse
Affiliation(s)
- Mario Marchi
- Department of Pharmacy, Pharmacology and Toxicology Section, University of Genoa , Genoa, Italy ; Center of Excellence for Biomedical Research, University of Genoa , Genoa, Italy
| | - Massimo Grilli
- Department of Pharmacy, Pharmacology and Toxicology Section, University of Genoa , Genoa, Italy
| | - Anna M Pittaluga
- Department of Pharmacy, Pharmacology and Toxicology Section, University of Genoa , Genoa, Italy ; Center of Excellence for Biomedical Research, University of Genoa , Genoa, Italy
| |
Collapse
|
7
|
Salamone A, Zappettini S, Grilli M, Olivero G, Agostinho P, Tomé AR, Chen J, Pittaluga A, Cunha RA, Marchi M. Prolonged nicotine exposure down-regulates presynaptic NMDA receptors in dopaminergic terminals of the rat nucleus accumbens. Neuropharmacology 2013; 79:488-97. [PMID: 24373903 DOI: 10.1016/j.neuropharm.2013.12.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 11/20/2013] [Accepted: 12/14/2013] [Indexed: 01/10/2023]
Abstract
The presynaptic control of dopamine release in the nucleus accumbens (NAc) by glutamate and acetylcholine has a profound impact on reward signaling. Here we provide immunocytochemical and neurochemical evidence supporting the co-localization and functional interaction between nicotinic acetylcholine receptors (nAChRs) and N-methyl-D-aspartic acid (NMDA) receptors in dopaminergic terminals of the NAc. Most NAc dopaminergic terminals possessed the nAChR α4 subunit and the pre-exposure of synaptosomes to nicotine (30 μM) or to the α4β2-containing nAChR agonist 5IA85380 (10 nM) selectively inhibited the NMDA (100 μM)-evoked, but not the 4-aminopyridine (10 μM)-evoked, [(3)H] dopamine outflow; this inhibition was blunted by mecamylamine (10 μM). Nicotine and 5IA85380 pretreatment also inhibited the NMDA (100 μM)-evoked increase of calcium levels in single nerve terminals, an effect prevented by dihydro-β-erythroidine (1 μM). This supports a functional interaction between α4β2-containing nAChR and NMDA receptors within the same terminal, as supported by the immunocytochemical co-localization of α4 and GluN1 subunits in individual NAc dopaminergic terminals. The NMDA-evoked [(3)H]dopamine outflow was blocked by MK801 (1 μM) and inhibited by the selective GluN2B-selective antagonists ifenprodil (1 μM) and RO 25-6981 (1 μM), but not by the GluN2A-preferring antagonists CPP-19755 (1 μM) and ZnCl2 (1 nM). Notably, nicotine pretreatment significantly decreased the density of biotin-tagged GluN2B proteins in NAc synaptosomes. These results show that nAChRs dynamically and negatively regulate NMDA receptors in NAc dopaminergic terminals through the internalization of GluN2B receptors.
Collapse
Affiliation(s)
| | | | | | | | - Paula Agostinho
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Portugal
| | - Angelo R Tomé
- Faculty of Life Sciences, University of Coimbra, Portugal; CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Portugal
| | - Jiayang Chen
- Department of Pharmacy, University of Genoa, Italy
| | - Anna Pittaluga
- Department of Pharmacy, University of Genoa, Italy; Center of Excellence for Biomedical Research, University of Genoa, Italy
| | - Rodrigo A Cunha
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Portugal
| | - Mario Marchi
- Department of Pharmacy, University of Genoa, Italy; Center of Excellence for Biomedical Research, University of Genoa, Italy.
| |
Collapse
|
8
|
Modulation of haloperidol-induced catalepsy in rats by GABAergic neural substrate in the inferior colliculus. Neuroscience 2013; 255:212-8. [DOI: 10.1016/j.neuroscience.2013.09.064] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 09/11/2013] [Accepted: 09/26/2013] [Indexed: 11/19/2022]
|
9
|
CHANG ZY. Science China Life Sciences in 2011: a Retrospect. PROG BIOCHEM BIOPHYS 2013. [DOI: 10.3724/sp.j.1206.2012.00567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
10
|
Xi Y, Zhu C, Xu Q. Neuroscience in China 2010–2011. CHINESE SCIENCE BULLETIN-CHINESE 2012. [DOI: 10.1007/s11434-012-5551-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Su YY, Luo B, Jin Y, Wu SH, Lobarinas E, Salvi RJ, Chen L. Altered neuronal intrinsic properties and reduced synaptic transmission of the rat's medial geniculate body in salicylate-induced tinnitus. PLoS One 2012; 7:e46969. [PMID: 23071681 PMCID: PMC3468622 DOI: 10.1371/journal.pone.0046969] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Accepted: 09/10/2012] [Indexed: 12/31/2022] Open
Abstract
Sodium salicylate (NaSal), an aspirin metabolite, can cause tinnitus in animals and human subjects. To explore neural mechanisms underlying salicylate-induced tinnitus, we examined effects of NaSal on neural activities of the medial geniculate body (MGB), an auditory thalamic nucleus that provides the primary and immediate inputs to the auditory cortex, by using the whole-cell patch-clamp recording technique in MGB slices. Rats treated with NaSal (350 mg/kg) showed tinnitus-like behavior as revealed by the gap prepulse inhibition of acoustic startle (GPIAS) paradigm. NaSal (1.4 mM) decreased the membrane input resistance, hyperpolarized the resting membrane potential, suppressed current-evoked firing, changed the action potential, and depressed rebound depolarization in MGB neurons. NaSal also reduced the excitatory and inhibitory postsynaptic response in the MGB evoked by stimulating the brachium of the inferior colliculus. Our results demonstrate that NaSal alters neuronal intrinsic properties and reduces the synaptic transmission of the MGB, which may cause abnormal thalamic outputs to the auditory cortex and contribute to NaSal-induced tinnitus.
Collapse
Affiliation(s)
- Yan-Yan Su
- CAS Key Laboratory of Brain Function and Disease, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | | | | | | | | | | | | |
Collapse
|