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Effects of Dopamine and Haloperidol on Morphine-induced CREB and AP-1 DNA Binding Activities in Differentiated SH-SY5Y Human Neuroblastoma Cells

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Author(s)
Soo-kyung KimGee-youn Kwon
Keimyung Author(s)
Kim, Soo Kyung
Department
Dept. of Pharmacology (약리학)
Institute for Medical Science (의과학연구소)
Journal Title
Korean J of Physiology & Pharmacology
Issued Date
1998
Volume
2
Issue
6
Keyword
CREBAP-1Morphine toleranceSH-SY5Y Cells
Abstract
In the present study, we first examined whether the changes in the DNA binding activities of the transcription factors, cAMP response element binding protein (CREB) and activator protein-1 (AP-1) mediate the long-term effects of morphine in differentiated SH-SY5Y human neuroblastoma cells. The increases in CREB and AP-1 DNA binding activities were time-dependent up to 6 days of morphine treatment (1, 4, and 6 days). However, the significant reduction in the DNA binding activities of CREB and AP-1 was observed after 10 days of chronic morphine (10 μM) administration. Secondly, we examined whether the changes of CREB and AP-1 DNA binding activities could be modulated by dopamine and haloperidol. Dopamine cotreatment moderately increased the levels of the CREB and AP-1 DNA binding activities induced by 10 days of chronic morphine treatment, and haloperidol cotreatment also resulted in a moderate increase of the CREB and AP-1 DNA binding activities. However, dopamine or haloperidol only treatment showed a significant increase or decrease of the CREB and AP-1 DNA binding activities, respectively. In the case of acute morphine treatment, the CREB and AP-1 DNA binding activities were shown to decrease in a time-dependent manner (30, 60, 90, and 120 min). Taken these together, in differentiated SH-SY5Y cells, morphine tolerance seems to involve simultaneous changes of the CREB and AP-1 DNA binding activities. Our data also suggest the possible involvement of haloperidol in prevention or reversal of morphine tolerance at the transcriptional level.
Keimyung Author(s)(Kor)
김수경
Publisher
School of Medicine
Citation
Soo-kyung Kim and Gee-youn Kwon. (1998). Effects of Dopamine and Haloperidol on Morphine-induced CREB and AP-1 DNA Binding Activities in Differentiated SH-SY5Y Human Neuroblastoma Cells. Korean J of Physiology & Pharmacology, 2(6), 671–676.
Type
Article
ISSN
1226-4512
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/36100
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Pharmacology (약리학)
3. Research Institutues (연구소) > Institute for Medical Science (의과학연구소)
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