Abstract
Rationale
Prepulse inhibition (PPI) of startle provides an operational measure of sensorimotor gating in which a weak stimulus presented prior to a startling stimulus reduces the startle response. PPI deficits observed in schizophrenia patients can be modeled in rats by individual housing from weaning until adulthood. The deficits in PPI produced by isolation rearing can be reversed by antipsychotics. We previously found that (S)-5-[3-[(1,4-benzodioxan-2-ylmethyl)amino]propoxy]-1,3-benzodioxole HCl (MKC-242), a highly potent 5-HT1A receptor agonist, reduced aggressive behavior selectively in isolation-reared mice.
Objective
This study examines whether isolation rearing of mice produces PPI deficits and whether PPI deficits are attenuated by 5-HT1A receptor activation.
Methods
Male ddY mice, 4 weeks old, were housed for more than 6 weeks singly or in groups of five or six. The PPI of the acoustic startle response was measured using SR-LAB systems.
Results
The PPI was less in isolation-reared mice than in group-reared mice. Oral administration of MKC-242 at 0.1–0.3 mg/kg reversed PPI deficits in isolation-reared mice, although it did not affect PPI in group-reared mice. MKC-242 did not affect MK-801-induced and apomorphine-induced PPI deficits in group-reared mice. The reversal by MKC-242 of isolation-induced PPI deficits was antagonized by the 5-HT1A receptor antagonist WAY100635 at low doses.
Conclusion
These results suggest that isolation rearing produces deficits in sensorimotor gating in mice that are reversible by activation of 5-HT1A receptors, probably somatodendritic 5-HT1A autoreceptors.
Similar content being viewed by others
References
Abe M, Tabata R, Saito K, Matsuda T, Baba A, Egawa M (1996) Novel benzodioxan derivative, 5-[3-[((2S)-1,4-benzodioxan-2-ylmethyl)amino]propoxy]-1,3-benzodioxole HCl (MKC-242), with anxiolytic-like and antidepressant-like effects in animal models. J Pharmacol Exp Ther 278:898–905
Abe M, Nakai H, Tabata R, Saito K, Egawa M (1998) Effect of 5-[3-[((2S)-1,4-benzodioxan-2-ylmethyl)amino]propoxy]-1,3-benzodioxole HCl (MKC-242), a novel 5-HT1A-receptor agonist, on aggressive behavior and marble burying behavior in mice. Jpn J Pharmacol 76:297–304
Ago Y, Sakaue M, Baba A, Matsuda T (2002) Selective reduction by isolation rearing of 5-HT1A receptor-mediated dopamine release in vivo in the frontal cortex of mice. J Neurochem 83:353–359
Azmitia EC, Gannon PJ, Kheck NM, Whitaker-Azmitia PM (1996) Cellular localization of the 5-HT1A receptor in primate brain neurons and glial cells. Neuropsychopharmacology 14:35–46
Bakshi VP, Geyer MA (1999) Ontogeny of isolation rearing-induced deficits in sensorimotor gating in rats. Physiol Behav 67:385–392
Bakshi VP, Swerdlow NR, Braff DL, Geyer MA (1998) Reversal of isolation rearing-induced deficits in prepulse inhibition by seroquel and olanzapine. Biol Psychiatry 43:436–445
Barnes NM, Sharp T (1999) A review of central 5-HT receptors and their function. Neuropharmacology 38:1083–1152
Bickerdike MJ, Wright IK, Marsden CA (1993) Social isolation attenuates rat forebrain 5-HT release induced by KCl stimulation and exposure to a novel environment. Behav Pharmacol 4:231–236
Braff D, Stone C, Callaway E, Geyer M, Glick I, Bali L (1978) Prestimulus effects on human startle reflex in normals and schizophrenics. Psychophysiology 15:339–343
Braff DL, Grillon C, Geyer MA (1992) Gating and habituation of the startle reflex in schizophrenic patients. Arch Gen Psychiatry 49:206–215
Bristow LJ, Landon L, Saywell KL, Tricklebank MD (1995) The glycine/NMDA receptor antagonist, L-701,324 reverses isolation-induced deficits in prepulse inhibition in the rat. Psychopharmacology 118:230–232
Cilia J, Reavill C, Hagan JJ, Jones DNC (2001) Long-term evaluation of isolation-rearing induced prepulse inhibition deficits in rats. Psychopharmacology 156:327–337
De Boer SF, Lesourd M, Mocaer E, Koolhaas JM (1999) Selective antiaggressive effects of alnespirone in resident-intruder test are mediated via 5-hydroxytryptamine1A receptors: a comparative pharmacological study with 8-hydroxy-2-dipropylaminotetralin, ipsapirone, buspirone, eltoprazine, and WAY-100635. J Pharmacol Exp Ther 288:1125–1133
Domeney A, Feldon J (1998) The disruption of prepulse inhibition by social isolation in the Wistar rat: how robust is the effect? Pharmacol Biochem Behav 59:883–890
Dulawa SC, Geyer MA (2000) Effects of strain and serotonergic agents on prepulse inhibition and habituation in mice. Neuropharmacology 39:2170–2179
Dulawa SC, Hen R, Scearce-Levie K, Geyer MA (1997) Serotonin1B receptor modulation of startle reactivity, habituation, and prepulse inhibition in wild-type and serotonin1B knockout mice. Psychopharmacology 132:125–134
Dulawa SC, Gross C, Stark KL, Hen R, Geyer MA (2000) Knockout mice reveal opposite roles for serotonin 1A and 1B receptors in prepulse inhibition. Neuropsychopharmacology 22:650–659
Fone KC, Shalders K, Fox ZD, Arthur R, Marsden CA (1996) Increased 5-HT2C receptor responsiveness occurs on rearing rats in social isolation. Psychopharmacology 123:346–352
Gentsch C, Lichtsteiner M, Feer H (1982) Behavioural comparisons between individually- and group-housed male rats: effects of novel environments and diurnal rhythm. Behav Brain Res 6:93–100
Geyer MA, Wilkinson LS, Humby T, Robbins TW (1993) Isolation rearing of rats produces a deficit in prepulse inhibition of acoustic startle similar to that in schizophrenia. Biol Psychiatry 34:361–372
Geyer MA, Krebs-Thomson K, Braff DL, Swerdlow NR (2001) Pharmacological studies of prepulse inhibition models of sensorimotor gating deficits in schizophrenia: a decade in review. Psychopharmacology 156:117–154
Graham FK (1975) The more or less startling effects of weak prestimulation. Psychophysiology 12:238–248
Hall MD, Mestikawy SE, Emerit MB, Pichat L, Hamon M, Gozlan H (1985) [3H]8-Hydroxy-2-(di-n-propylamino)tetralin binding to pre- and postsynaptic 5-hydroxytryptamine sites in various regions of the rat brain. J Neurochem 44:1685–1696
Hall FS, Wilkinson LS, Humby T, Inglis W, Kendall DA, Marsden CA, Robbins TW (1998) Isolation rearing in rats: pre- and postsynaptic changes in striatal dopaminergic systems. Pharmacol Biochem Behav 59:859–872
Hashimoto T, Nishino N, Nakai H, Tanaka C (1991) Increase in serotonin 5-HT1A receptors in prefrontal and temporal cortices of brains from patients with chronic schizophrenia. Life Sci 48:355–363
Heidbreder CA, Foxton R, Cilia J, Hughes ZA, Shah AJ, Atkins A, Hunter AJ, Hagan JJ, Jones, DNC (2001) Increased responsiveness of dopamine to atypical, but not typical antipsychotics in the medial prefrontal cortex of rats reared in isolation. Psychopharmacology 156:338–351
Jones GH, Hernandez TD, Kendall DA, Marsden CA, Robbins TW (1992) Dopaminergic and serotonergic function following isolation rearing in rats: study of behavioural responses and postmortem and in vivo neurochemistry. Pharmacol Biochem Behav 43:17–35
Mason SL, Reynolds GP (1992) Clozapine has sub-micromolar affinity for 5-HT1A receptors in human brain tissue. Eur J Pharmacol 221:397–398
Matsuda T, Somboonthum P, Suzuki M, Asano S, Baba A (1995a) Antidepressant-like effect by postsynaptic 5-HT1A receptor activation in mice. Eur J Pharmacol 280:235–238
Matsuda T, Yoshikawa T, Suzuki M, Asano S, Somboonthum P, Takuma K, Nakano Y, Morita T, Nakasu Y, Kim HS, Egawa M, Tobe A, Baba A (1995b) Novel benzodioxan derivative, 5-(3-[((2S)-1,4-benzodioxan-2-ylmethyl)amino]propoxy)-1,3-benzodioxole HCl (MKC-242), with a highly potent and selective agonist activity at rat central serotonin1A receptors. Jpn J Pharmacol 69:357–366
Matsuda T, Sakaue M, Ago Y, Sakamoto Y, Koyama Y, Baba A (2001) Functional alteration of brain dopaminergic system in isolated aggressive mice. Jpn J Neuropsychopharmacol 21:71–76
Meller E, Goldstein M, Bohmaker K (1990) Receptor reserve for 5-hydroxytryptamine1A-mediated inhibition of serotonin synthesis: possible relationship to anxiolytic properties of 5-hydroxytryptamine1A agonists. Mol Pharmacol 37:231–237
Mendoza DL, Bravo HA, Swanson HH (1999) Antiaggressive and anxiolytic effects of gepirone in mice, and their attenuation by WAY 100635. Pharmacol Biochem Behav 62:499–509
Newman-Tancredi A, Gavaudan S, Conte C, Chaput C, Touzard M, Verrièle L, Audinot V, Millan MJ (1998) Agonist and antagonist actions of antipsychotic agents at 5-HT1A receptors: a [35S]GTPγS binding study. Eur J Pharmacol 355:245–256
Olivier B, Mos J, Van der Heyden J, Hartog J (1989) Serotonergic modulation of social interactions in isolated male mice. Psychopharmacology 97:154–156
Rigdon GC, Weatherspoon JK (1992) 5-Hydroxytryptamine1a receptor agonists block prepulse inhibition of acoustic startle reflex. J Pharmacol Exp Ther 263:486–493
Rollema H, Lu Y, Schmidt AW, Zorn SH (1997) Clozapine increases dopamine release in prefrontal cortex by 5-HT1A receptor activation. Eur J Pharmacol 338:R3–R5
Rollema H, Lu Y, Schmidt AW, Sprouse JS, Zorn SH (2000) 5-HT1A receptor activation contributes to ziprasidone-induced dopamine release in the rat prefrontal cortex. Biol Psychiatry 48:229–237
Sakaue M, Ago Y, Murakami C, Sowa C, Sakamoto Y, Koyama Y, Baba A, Matsuda T (2001) Involvement of benzodiazepine binding sites in an antiaggressive effect by 5-HT1A receptor activation in isolated mice. Eur J Pharmacol 432:163–166
Sakaue M, Somboonthum P, Nishihara B, Koyama Y, Hashimoto H, Baba A, Matsuda T (2000) Postsynaptic 5-hydroxytryptamine1A receptor activation increases in vivo dopamine release in rat prefrontal cortex. Br J Pharmacol 129:1028–1034
Sánchez C, Arnt J, Hyttel J, Moltzen EK (1993) The role of serotonergic mechanisms in inhibition of isolation-induced aggression in male mice. Psychopharmacology 110:53–59
Sipes TA, Geyer MA (1995) 8-OH-DPAT disruption of prepulse inhibition in rats: reversal with (+)WAY 100,135 and localization of site of action. Psychopharmacology 117:41–48
Sumiyoshi T, Stockmeier CA, Overholser JC, Dilley GE, Meltzer HY (1996) Serotonin1A receptors are increased in postmortem prefrontal cortex in schizophrenia. Brain Res 708:209–214
Swerdlow NR, Benbow CH, Zisook S, Geyer MA, Braff DL (1993) A preliminary assessment of sensorimotor gating in patients with obsessive compulsive disorder. Biol Psychiatry 33:298–301
Swerdlow NR, Paulse J, Braff DL, Butters N, Geyer MA, Swenson MR (1995) Impaired prepulse inhibition of acoustic and tactile startle response in patients with Huntington's disease. J Neurol Neurosurg Psychiatry 58:192–200
Valzelli L (1969) Aggressive behavior induced by isolation. In: Garattini S, Sigg EB (eds) Biology of aggressive behavior. Excerpta Medica, Amsterdam, pp 70–76
Valzelli L, Garattini S (1972) Biochemical and behavioural changes induced by isolation in rats. Neuropharmacology 11:17–22
Varty GB, Higgins GA (1995) Examination of drug-induced and isolation-induced disruptions of prepulse inhibition as models to screen antipsychotic drugs. Psychopharmacology 122:15–26
Wedzony K, Maćkowiak M. Fijal K, Golembiowska K (1996) Ipsapirone enhances the dopamine outflow via 5-HT1A receptors in the rat prefrontal cortex. Eur J Pharmacol 305:73–78
Whitaker-Azmitia P, Zhou F, Hobin J, Borella A (2000) Isolation-rearing of rats produces deficits as adults in the serotonergic innervation of hippocampus. Peptides 21:1755–1759
White SM, Kucharik RF, Moyer JA (1991) Effects of serotonergic agents on isolation-induced aggression. Pharmacol Biochem Behav 39:729–736
Wilkinson LS, Killcross SS, Humby T, Hall FS, Geyer MA, Robbins TW (1994) Social isolation in the rat produces developmentally specific deficits in prepulse inhibition of the acoustic startle response without disrupting latent inhibition. Neuropsychopharmacology 10:61–72
Wright IK, Ismail H, Upton N, Marsden CA (1991) Effect of isolation rearing on 5-HT agonist-induced responses in the rat. Psychopharmacology 105:259–263
Yocca FD, Iben L, Meller E (1992) Lack of apparent receptor reserve at postsynaptic 5-hydroxytryptamine1A receptors negatively coupled to adenylyl cyclase activity in rat hippocampal membranes. Mol Pharmacol 41:1066–1072
Acknowledgements
This work was supported by grants from Grant-in-Aid for Scientific Research and Mitsubishi Pharma Co. We acknowledge the donation of MKC-242 and WAY100635 from Dr. M. Egawa (Mitsubishi Pharma Co.).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sakaue, M., Ago, Y., Baba, A. et al. The 5-HT1A receptor agonist MKC-242 reverses isolation rearing-induced deficits of prepulse inhibition in mice. Psychopharmacology 170, 73–79 (2003). https://doi.org/10.1007/s00213-003-1515-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00213-003-1515-x