Effect of the neurotoxic dose of methamphetamine on gene expression of parkin and Pael-receptors in rat striatum

T. Nakahara, T. Kuroki, E. Ohta, T. Kajihata, H. Yamada, M. Yamanaka, K. Hashimoto, T. Tsutsumi, M. Hirano, H. Uchimura

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We previously reported that haloperidol, a dopamine-D2 receptor antagonist, induced striatal expression of parkin gene, which mutations cause autosomal recessive juvenile parkinsonism. Because of an involvement of the parkin gene defect in selective degeneration of dopaminergic neurons, we herein examined the effect of the neurotoxic dose of methamphetamine (METH; 40mg/kg, i.p.) on gene expression of parkin and its substrate Pael-receptor (R) in the dopamine-rich areas of the rat brain, using reverse transcription-polymerase chain reaction. parkin mRNA levels in the striatum, but not in other regions, decreased at 1 and 2h and returned to the pre-drug basal levels at 4h after METH administration. METH also decreased Pael-R mRNA levels in the striatum and substantia nigra within 2h after METH, while haloperidol (2mg/kg, s.c.) increased Pael-R mRNA levels in the substantia nigra at 2h after administration. These results suggest that temporary suppression of gene expression of parkin and Pael-R may be associated with the METH-induced dopaminergic neurotoxicity. Taken together with our previous report, dopaminergic modulation of the expression of parkin and Pael-R genes in the nigro-striatal pathway may have significant implication for pathophysiology and treatment of parkinson disease.

Original languageEnglish
Pages (from-to)213-219
Number of pages7
JournalParkinsonism and Related Disorders
Volume9
Issue number4
DOIs
Publication statusPublished - Mar 2003

All Science Journal Classification (ASJC) codes

  • Neurology
  • Geriatrics and Gerontology
  • Clinical Neurology

Fingerprint

Dive into the research topics of 'Effect of the neurotoxic dose of methamphetamine on gene expression of parkin and Pael-receptors in rat striatum'. Together they form a unique fingerprint.

Cite this