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Extracellular signal regulated protein kinase and c-jun N-terminal kinase are involved in ml muscarinic receptor-enhanced interleukin-2 production pathway in Jurkat cells.

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Title: Extracellular signal regulated protein kinase and c-jun N-terminal kinase are involved in ml muscarinic receptor-enhanced interleukin-2 production pathway in Jurkat cells.
Authors: Fujino, Hiromichi Browse this author
Uehara, Takashi Browse this author
Murayama, Toshihiko Browse this author
Okuma, Yasunobu Browse this author
Ariga, Hiroyoshi Browse this author →KAKEN DB
Nomura, Yasuyuki Browse this author
Keywords: muscarinic receptor
interleukin-2
neuroimmune interaction
Jurkat cell
Issue Date: Oct-2000
Publisher: The Pharmaceutical Society of Japan
Journal Title: Biological & pharmaceutical bulletin
Volume: 23
Issue: 10
Start Page: 1198
End Page: 1205
Publisher DOI: 10.1248/bpb.23.1198
PMID: 11041251
Abstract: We have previously shown that m1 and m2 muscarinic receptors were expressed on human peripheral blood lymphocytes (hPBL) and that pre-stimulation of these receptors enhanced phytohemagglutinin (PHA)-induced interleukin-2 (IL-2) production. Possible intracellular signal pathways of muscarinic receptors to regulate IL-2 production were examined in human T cell line Jurkat cells. Pretreatment of the cells with muscarinic receptor agonist, oxotremorine M (Oxo-M), enhanced IL-2 production induced by phorbol 12-myristate 13-acetate (PMA)/A23187, while Oxo-M by itself did not affect IL-2 production. The enhancement of IL-2 production by Oxo-M was inhibited by 4-diphenylacetoxy-N-methylpiperidine methiodide (4-DAMP) an ml/m3 receptor antagonist. When the cells were pretreated with AF-DX116, an m2 antagonist, the IL-2 production enhanced by Oxo-M was further stimulated. Reverse transcription-polymerase chain reaction (RT-PCR) revealed that ml and m2 muscarinic receptors exist on Jurkat cells. The stimulation of ml receptors enhanced the PMA/A23187-induced binding activity to AP-1 consensus sequences in IL-2 promoter and production of c-Fos and c-Jun protein. The stimulation of ml receptors did not modify the DNA binding of NF-kappaB, NF-AT or Oct-1. When ml receptors were stimulated, activities of mitogen-activated protein kinase (MAPK)/extracellular signal regulated protein kinase (ERK) and c-Jun N-terminal kinase (JNK) were increased, while p38 MAPK was not affected. Incubation with Oxo-M induced a transient increase in [Ca2+]i, which was abolished by pretreatment with 4-DAMP. Treatment with cyclosporin A markedly decreased the PMA/A23187-induced IL-2 promoter activity. This treatment, however, did not affect the enhancement of the promoter activity induced by ml receptor stimulation. The results suggest that transcription factor AP-1 is involved in the ml receptor-mediated enhancement of IL-2 transcript in Jurkat cells, and that pathways via MAPK/ERK and JNK, but not via p38 MAPK, are involved in the ml receptor-mediated enhancement of IL-2 promoter activity.
Type: article
URI: http://hdl.handle.net/2115/53969
Appears in Collections:薬学研究院 (Faculty of Pharmaceutical Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 有賀 寛芳

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