First and second generation antipsychotics influence hippocampal gamma oscillations by interactions with 5-HT3 and D3 receptors
© 2012 The Authors. British Journal of Pharmacology © 2012 The British Pharmacological Society..
BACKGROUND AND PURPOSE: Disturbed cortical gamma band oscillations (30-80 Hz) have been observed in schizophrenia: positive symptoms of the disease correlate with an increase in gamma oscillation power, whereas negative symptoms are associated with a decrease.
EXPERIMENTAL APPROACH: Here we investigated the effects of first and second generation antipsychotics (FGAs and SGAs, respectively) on gamma oscillations. The FGAs haloperidol, flupenthixol, chlorpromazine, chlorprothixene and the SGAs clozapine, risperidone, ziprasidone, amisulpride were applied on gamma oscillations induced by acetylcholine and physostigmine in the CA3 region of rat hippocampal slices.
KEY RESULTS: Antipsychotics inhibited the power of gamma oscillations and increased the bandwidth of the gamma band. Haloperidol and clozapine had the highest inhibitory effects. To determine which receptor is responsible for the alterations in gamma oscillations, the effects of the antipsychotics were plotted against their pK(i) values for 19 receptors and analysed for correlation. Our results indicated that 5-HT(3) receptors have an enhancing effect on gamma oscillations whereas dopamine D(3) receptors inhibit them. To test this prediction, m-chlorophenylbiguanide, PD 128907 and CP 809101, selective agonists at 5-HT(3) , D(3) and 5-HT(2C) receptors were applied and revealed that 5-HT(3) receptors indeed enhanced the gamma power whereas D(3) receptors reduced it. As predicted, 5-HT(2C) receptors had no effects on gamma oscillations.
CONCLUSION AND IMPLICATIONS: Our data suggest that antipsychotics alter hippocampal gamma oscillations by interacting with 5-HT(3) and dopamine D(3) receptors. Moreover, a correlation of receptor affinities with the biological effects can be used to predict targets for the pharmacological effects of multi-target drugs.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2012 |
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| Erschienen: |
2012 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:167 |
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| Enthalten in: |
British journal of pharmacology - 167(2012), 7 vom: 20. Dez., Seite 1480-91 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Schulz, Steffen B [VerfasserIn] |
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| Links: |
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| Themen: |
9U1VM840SP |
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| Anmerkungen: |
Date Completed 09.04.2013 Date Revised 21.10.2021 published: Print Citation Status MEDLINE |
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| doi: |
10.1111/j.1476-5381.2012.02107.x |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM219600473 |
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| 100 | 1 | |a Schulz, Steffen B |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a First and second generation antipsychotics influence hippocampal gamma oscillations by interactions with 5-HT3 and D3 receptors |
| 264 | 1 | |c 2012 | |
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| 500 | |a Date Revised 21.10.2021 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2012 The Authors. British Journal of Pharmacology © 2012 The British Pharmacological Society. | ||
| 520 | |a BACKGROUND AND PURPOSE: Disturbed cortical gamma band oscillations (30-80 Hz) have been observed in schizophrenia: positive symptoms of the disease correlate with an increase in gamma oscillation power, whereas negative symptoms are associated with a decrease | ||
| 520 | |a EXPERIMENTAL APPROACH: Here we investigated the effects of first and second generation antipsychotics (FGAs and SGAs, respectively) on gamma oscillations. The FGAs haloperidol, flupenthixol, chlorpromazine, chlorprothixene and the SGAs clozapine, risperidone, ziprasidone, amisulpride were applied on gamma oscillations induced by acetylcholine and physostigmine in the CA3 region of rat hippocampal slices | ||
| 520 | |a KEY RESULTS: Antipsychotics inhibited the power of gamma oscillations and increased the bandwidth of the gamma band. Haloperidol and clozapine had the highest inhibitory effects. To determine which receptor is responsible for the alterations in gamma oscillations, the effects of the antipsychotics were plotted against their pK(i) values for 19 receptors and analysed for correlation. Our results indicated that 5-HT(3) receptors have an enhancing effect on gamma oscillations whereas dopamine D(3) receptors inhibit them. To test this prediction, m-chlorophenylbiguanide, PD 128907 and CP 809101, selective agonists at 5-HT(3) , D(3) and 5-HT(2C) receptors were applied and revealed that 5-HT(3) receptors indeed enhanced the gamma power whereas D(3) receptors reduced it. As predicted, 5-HT(2C) receptors had no effects on gamma oscillations | ||
| 520 | |a CONCLUSION AND IMPLICATIONS: Our data suggest that antipsychotics alter hippocampal gamma oscillations by interacting with 5-HT(3) and dopamine D(3) receptors. Moreover, a correlation of receptor affinities with the biological effects can be used to predict targets for the pharmacological effects of multi-target drugs | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 7 | |a Antipsychotic Agents |2 NLM | |
| 650 | 7 | |a Receptors, Dopamine D3 |2 NLM | |
| 650 | 7 | |a Receptors, Serotonin, 5-HT3 |2 NLM | |
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| 650 | 7 | |a Acetylcholine |2 NLM | |
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| 700 | 1 | |a Mike, Arpad |e verfasserin |4 aut | |
| 700 | 1 | |a Klaft, Zin-Juan |e verfasserin |4 aut | |
| 700 | 1 | |a Heinemann, Uwe |e verfasserin |4 aut | |
| 700 | 1 | |a Gerevich, Zoltan |e verfasserin |4 aut | |
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