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Melendez-Zaidi AE, Lakshminarasimhah H, Surmeier DJ. Cholinergic modulation of striatal nitric oxide-producing interneurons. Eur J Neurosci 2019; 50:3713-3731. [PMID: 31340071 DOI: 10.1111/ejn.14528] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 07/07/2019] [Accepted: 07/15/2019] [Indexed: 01/17/2023]
Abstract
Striatal GABAergic interneurons that express nitric oxide synthase-so-called low-threshold spike interneurons (LTSIs)-play several key roles in the striatum. But what drives the activity of these interneurons is less well defined. To fill this gap, a combination of monosynaptic rabies virus mapping (msRVm), electrophysiological and optogenetic approaches were used in transgenic mice in which LTSIs expressed either Cre recombinase or a fluorescent reporter. The rabies virus studies revealed a striking similarity in the afferent connectomes of LTSIs and neighboring cholinergic interneurons, particularly regarding connections arising from the parafascicular nucleus of the thalamus and cingulate cortex. While optogenetic stimulation of cingulate inputs excited both cholinergic interneurons and LTSIs, thalamic stimulation excited cholinergic interneurons, but inhibited LTSIs. This inhibition was dependent on cholinergic interneurons and had two components: a previously described GABAergic element and one that was mediated by M4 muscarinic acetylcholine receptors. In addition to this phasic signal, cholinergic interneurons tonically excited LTSIs through a distinct, M1 muscarinic acetylcholine receptor pathway. This coordinated cholinergic modulation of LTSIs predisposed them to rhythmically burst in response to phasic thalamic activity, potentially reconfiguring striatal circuitry in response to salient environmental stimuli.
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Affiliation(s)
- Alexandria E Melendez-Zaidi
- Department of Physiology, Feinberg School of Medicine, Chicago, IL, USA.,Medical Scientist Training Program, Feinberg School of Medicine, Chicago, IL, USA.,Department of Pediatrics, Division of Neurology and Developmental Neuroscience, Texas Children's Hospital/Baylor College of Medicine, Houston, TX, USA
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Abstract
The basal ganglia occupy the core of the forebrain and consist of evolutionarily conserved motor nuclei that form recurrent circuits critical for motivation and motor planning. The striatum is the main input nucleus of the basal ganglia and a key neural substrate for procedural learning and memory. The vast majority of striatal neurons are spiny GABAergic projection neurons, which exhibit slow but temporally precise spiking in vivo. Contributing to this precision are several different types of interneurons that constitute only a small fraction of total neuron number but play a critical role in regulating striatal output. This review examines the cellular physiology and modulation of striatal neurons that give rise to their unique properties and function.
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Affiliation(s)
- Anatol C Kreitzer
- Gladstone Institute of Neurological Disease and Departments of Physiology and Neurology, University of California, San Francisco, California 94158, USA.
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Khan S, Whelpton R, Michael-Titus AT. Substance P modulation of striatal dopamine outflow is determined by M(1) and M(2) muscarinic receptors in male wistar rats. Neurosci Lett 2000; 293:179-82. [PMID: 11036190 DOI: 10.1016/s0304-3940(00)01529-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Substance P (SP) stimulates striatal dopamine outflow through a cholinergic muscarinic link. SP-induced increase in acetylcholine (Ach) is concentration-dependent, whereas the stimulation of dopamine outflow is seen only over a limited concentration range. M(1) and M(2) receptor stimulation has opposite effects on dopamine outflow. We postulated that the effect of SP on dopamine outflow depends on the M(1)/M(2) balance. We show that Ach (10-2500 microM) stimulates dopamine outflow in striatal slices in a biphasic manner, similar to SP (0.01-100 nM). An inactive SP concentration (10 nM) which was higher than the active concentration range, became active in the presence of the M(2) antagonist methoctramine (100 microM). Conversely, the effect of 1 nM SP was reversed by the M(1) antagonist pirenzepine (1 microM). Our observations show that SP modulation of dopamine outflow is determined by a balance between M(1) and M(2) receptors.
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Affiliation(s)
- S Khan
- Molecular Pharmacology Section, Division of Biomedical Sciences, St. Bartholomew's and the Royal London School of Medicine and Dentistry, Queen Mary and Westfield College, Mile End Road, E1 4NS, London, UK
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Galli T, Artaud F, Torrens Y, Godeheu G, Desban M, Glowinski J, Chéramy A. NMDA and carbachol but not AMPA affect differently the release of [3H]GABA in striosome- and matrix-enriched areas of the rat striatum. Brain Res 1994; 649:243-52. [PMID: 7525008 DOI: 10.1016/0006-8993(94)91070-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The effects of alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA; 10(-3) M), N-methyl-D-aspartate (10(-3) M, in the absence of magnesium or presence of AMPA) and carbachol (10(-3) M) on the release of preloaded [3H]gamma-aminobutyric acid ([3H]GABA) from microdiscs of tissue punched out from sagittal brain slices in striosome- or matrix-enriched areas of the rat striatum have been compared. Although AMPA stimulated similarly the release of [3H]GABA in both striatal compartments, the release of [3H]GABA evoked by either N-methyl-D-aspartate (in the presence of AMPA) or carbachol was more pronounced in matrix- than in striosome-enriched areas. AMPA- and N-methyl-D-aspartate- (in the absence of magnesium) evoked responses were reduced but not abolished in the presence of tetrodotoxin (10(-6) M) in both compartments while the carbachol-evoked release of [3H]GABA was decreased by tetrodotoxin only in the matrix. The interruption of cholinergic transmission by the combined application of atropine (10(-5) M) and pempidine (10(-4) M) was without effect on the AMPA-evoked release of [3H]GABA, but it reduced the N-methyl-D-aspartate- (in the absence of magnesium or presence of AMPA) evoked release of [3H]GABA in both compartments, these reductions being of similar amplitude than those observed with tetrodotoxin.
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Affiliation(s)
- T Galli
- INSERM U114, Collège de France, Chaire de Neuropharmacologie, Paris
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Affiliation(s)
- S R Vincent
- Department of Psychiatry, University of British Columbia, Vancouver, Canada
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Alonso IA, Prieto JC, Arilla E. Effect of acute and chronic diisopropylfluorophosphate and atropine administration on somatostatin binding in the rat frontoparietal cortex and hippocampus. Psychopharmacology (Berl) 1993; 110:103-9. [PMID: 7870867 DOI: 10.1007/bf02246957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The acute and chronic administration of diisopropylfluorophosphate (DFP), an inhibitor of acetylcholinesterase (AChE), and of atropine, a blocker of muscarinic cholinergic receptors, did not affect somatostatin-like immunoreactivity (SLI) content in the frontoparietal cortex and hippocampus of rats. Acute and chronic DFP administration increased the number of specific 125I-Tyr11-somatostatin (125I-Tyr11-SS) receptors in synaptosomes from the frontoparietal cortex but not in those from the hippocampus and did not change the affinity constant. This increase in 125I-Tyr11-SS binding was not due to a direct effect of DFP on somatostatin (SS) receptors since no rise of binding was produced by high concentrations of DFP (10(-5) M) when added in vitro. The increase could be blocked by pretreatment with atropine. The acute administration of atropine alone had no observable effect on the number of SS receptors. However, repeated atropine administration produced a significant decrease in the 125I-Tyr11-SS binding in synaptosomes from the frontoparietal cortex but not in those from the hippocampus although the affinity constant was unchanged. The results suggest that interactions between somatostatinergic and cholinergic receptors may be important in the rat frontoparietal cortex.
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Affiliation(s)
- I A Alonso
- Department of Biochemistry and Molecular Biology, Medical School, University of Alcala, Madrid, Spain
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Martone ME, Armstrong DM, Young SJ, Groves PM. Ultrastructural examination of enkephalin and substance P input to cholinergic neurons within the rat neostriatum. Brain Res 1992; 594:253-62. [PMID: 1280527 DOI: 10.1016/0006-8993(92)91132-x] [Citation(s) in RCA: 80] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Enkephalin and substance P-containing inputs to cholinergic perikarya were examined in the rat neostriatum using an ultrastructural immunocytochemical double-labeling protocol. Sections of rat neostriatum were double-labeled for either choline acetyltransferase (ChAT) and substance P or ChAT and enkephalin using silver intensified colloidal gold and peroxidase as labels. Regions containing both ChAT-positive neurons and peroxidase reaction product were identified in the light microscope prior to sectioning for electron microscopy. Substance P-containing terminals which contained round synaptic vesicles and made symmetrical synaptic contacts were commonly observed in the neostriatum. Substance P synapses onto ChAT-positive perikarya and dendrites were frequently observed: up to 5 synaptic contacts were observed onto a ChAT-positive dendrite. Enkephalin labeling was also seen in a population of axon terminals containing round synaptic vesicles and exhibiting symmetrical synaptic specializations. In contrast to substance P-containing terminals, relatively few synaptic contacts were observed onto ChAT-positive labeled perikarya and dendrites although enkephalin-labeled terminals were seen in frequent contact with perikarya and dendrites of unlabeled spiny neurons. Since enkephalin and substance P are contained within different populations of striatal spiny neurons, the results of the present study suggest that these two types of neurons differ in their intrinsic striatal connections.
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Affiliation(s)
- M E Martone
- Department of Psychiatry, University of California, San Diego 92093
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Dawson TM, Dawson VL, Snyder SH. A novel neuronal messenger molecule in brain: the free radical, nitric oxide. Ann Neurol 1992; 32:297-311. [PMID: 1384420 DOI: 10.1002/ana.410320302] [Citation(s) in RCA: 678] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Understanding of the organization and function of a newly identified neuronal messenger molecule, nitric oxide, has progressed rapidly. Nitric oxide synthase has been purified and molecularly cloned from brain. Its localization is exclusively neuronal and endothelial. The catalytic activity of nitric oxide synthase accounts for the NADPH diaphorase staining of neurons that are uniquely resistant to toxic insults and neurodegenerative disorders. Nitric oxide has diverse functions. In platelets it inhibits their aggregation, in macrophages it mediates cytotoxicity, and in blood vessels it acts as a vasodilator. In the nervous system nitric oxide may be the retrograde transmitter in long-term potentiation. It is the "neurotransmitter" of cerebral vasodilator nerves and the inhibitory "neurotransmitter" of the motor neurons of the intestines. Nitric oxide in situations of excessive production may function as a neurotoxin, suggesting a role for nitric oxide in neurodegenerative disorders.
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Affiliation(s)
- T M Dawson
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205
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Alvaro I, Arilla E. Somatostatin receptor elevation in rat striatum after diisopropylfluorophosphate administration. Brain Res Bull 1992; 28:513-8. [PMID: 1352176 DOI: 10.1016/0361-9230(92)90097-h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The acute and chronic administration of diisopropylfluorophosphate (DFP), an inhibitor of acetylcholinesterase or of atropine, a blocker of muscarinic cholinergic receptors, did not affect somatostatin-like immunoreactivity (SLI) content in the striatum of rats. Acute and chronic DFP administration increased the number of specific 125I-Tyr11-somatostatin (125I-Tyr11-SS) receptors in cells dissociated from the striatum without changing the affinity constant. Although the increase could be blocked by pretreatment with atropine, it was not due to a direct effect by DFP on somatostatin (SS) receptors, because no rise in 125I-Tyr11-SS binding was produced by high concentrations of DFP (10(-5) M) when added in vitro. The acute administration of atropine alone had no observable effect on the number of SS receptors. However, repeated atropine administration produced a significant decrease in the 125I-Tyr11-SS binding in cells dissociated from the striatum, although the affinity constant was unchanged. The results suggest that interactions between somatostatinergic and cholinergic receptors may be of importance in the rat striatum.
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Affiliation(s)
- I Alvaro
- Department of Biochemistry and Molecular Biology, Medical School, University of Alcala, Madrid, Spain
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Abstract
Thirty years ago, Thomas and Pearse discovered what they termed 'solitary active cells'--neurons containing an unusually high nicotinamide adenine dinucleotide phosphate diaphorase (NADPH-diaphorase) activity that could be detected histochemically. Although these neurons were considered as something special, an appropriate mechanism to account for their outstanding metabolism was not provided until the recent identification of neuronal NADPH-diaphorase as nitric oxide synthase. This simple histochemical method now allows the precise anatomical localization of the neurons generating the exotic messenger molecule nitric oxide. This article reviews the functional implications that arise from our new knowledge of the anatomy of the nitric oxide signal transduction pathway in the nervous system. The widespread distribution of this system indicates that for those interested in cellular communication nitric oxide is a gas to study.
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Affiliation(s)
- S R Vincent
- Dept of Psychiatry, University of British Columbia, Vancouver, Canada
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Kostic V, Przedborski S, Jackson-Lewis V, Cadet JL, Burke RE. Effect of unilateral perinatal hypoxic-ischemic brain injury in the rat on striatal muscarinic cholinergic receptors and high-affinity choline uptake sites: a quantitative autoradiographic study. J Neurochem 1991; 57:1962-70. [PMID: 1940912 DOI: 10.1111/j.1471-4159.1991.tb06410.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The binding characteristics and distribution of M1 and M2 muscarinic cholinergic receptors and high-affinity choline uptake sites were studied in the striatum of the rat at 3-4 and 9-12 weeks of age after exposure to unilateral perinatal hypoxic-ischemic brain injury. High-affinity choline uptake sites were labeled with [3H]hemicholinium-3, M1 receptors with [3H]pirenzepine, and M2 receptors with [3H]AF-DX 116. Saturation experiments revealed a significant decrease in the maximal binding capacity (Bmax) for [3H]pirenzepine-labeled M1 receptors in the lesioned caudate/putamen complex in immature rats with moderate brain injury, in comparison with controls. In contrast, the Bmax value for [3H]hemicholinium-3-labeled high-affinity choline uptake sites was significantly increased. No changes in dissociation constants (KD) were observed. These changes were most pronounced in the dorsolateral region of striatum. Striatal regional distribution of [3H]AF-DX 116 was not affected. In mature rats, binding of [3H]pirenzepine returned to control values, whereas [3H]hemicholinium binding showed a persistent increase (23%). The increase in [3H]hemicholinium-3 binding, as a specific marker of cholinergic nerve terminals, is consistent with our prior morphologic studies demonstrating relative preservation of cholinergic neurons and neuropil, and supports the concept that striatal cholinergic systems are resistant to hypoxic-ischemic injury.
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Affiliation(s)
- V Kostic
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York 10032
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van der Zee EA, Benoit R, Strosberg AD, Luiten PG. Coexistence of muscarinic acetylcholine receptors and somatostatin in nonpyramidal neurons of the rat dorsal hippocampus. Brain Res Bull 1991; 26:343-51. [PMID: 1675593 DOI: 10.1016/0361-9230(91)90005-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This study describes the colocalization of muscarinic acetylcholine receptors (mAChRs) and the neuropeptide somatostatin (SOM) in nonpyramidal neurons of the rat dorsal hippocampus. SOM and mAChRs were identified by immunocytochemistry employing antibody S309 and M35, respectively. Half of the SOMergic cell population is found to be immunoreactive for muscarinic receptor protein as obtained by fluorescent double-labeling techniques. These findings provide additional evidence for a direct cholinergic influence upon SOMergic, nonpyramidal neurons, and defines the anatomical distribution of SOMergic, cholinoceptive neurons in the dorsal hippocampus. Concerning the muscarinic cholinoceptive, nonpyramidal neuron population of the dorsal hippocampus, a considerable number (approximately one-third) was found to be colocalized with somatostatin. These results indicate that a significant part of the cholinergic influence upon hippocampal nonpyramidal neurons is relayed via SOMergic neurons.
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Affiliation(s)
- E A van der Zee
- Department of Animal Physiology, University of Groningen, The Netherlands
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