Regulation of signals by TRP channels audits physiological significauce
Project/Area Number |
18390085
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
General medical chemistry
|
Research Institution | Kyoto University |
Principal Investigator |
MORI Yasuo Kyoto University, Graduate School of Engineering, Professor (80212265)
|
Project Period (FY) |
2006 – 2007
|
Project Status |
Completed (Fiscal Year 2007)
|
Budget Amount *help |
¥15,080,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2007: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2006: ¥10,400,000 (Direct Cost: ¥10,400,000)
|
Keywords | signal transduction / channel / chemotaxis / inflammation / reactive oxygenspecies / チャンネル |
Research Abstract |
Chemokines mediate the recruitment of inflammatory cells such as neutrophils and monocytes at inflamed sites in injury or infection. Recently, patho-physiological significance of reactive oxygen species (ROS) has been recognized in inflammatory chemokine expression. Here, we demonstrate that the plasma membrane Ca^<2+>-permeable cation channel TRPM2 controls chemokine production in response to ROS in monocytes. In human monocytic cell line U937, hydrogen peroxide (H202) induces Ca^<2+> influx via TRPM2 channels that triggers Ca^<2+>-dependent activation of Pyk2 and amplifies Erk activation in Ras-dependent manner. The amplification of Erk signal leads to the nuclear translocation of nuclear factor-_KB (NF_KB) and the subsequence production of the chemokine interleukine-8 (IL-8), suggesting a pivotal role played by TRPM2 in ROS-induced IL-8 production in monocytes. Monocytes isolated from TRPM2 knockout mice show significantly suppressed elevation of intracellular Ca^<2+> concentration and production of the macrophage inflammatory protein 2 (MIP-2), a murine counterpart of IL-8, upon stimulation with H2O2. In dextran sulfate sodium-induced experimental colitis used as a model for inflammation, MIP-2 production, neutrophil infiltration, and ulceration were significantly attenuated by TRPM2 defeciency. These findings suggest that Ca^<2+> inflax via TRPM2 channels amplifies ROS-induced Erk/NF_KB activation to control chemokine production, playing a key role in aggravation of inflammation.
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Report
(3 results)
Research Products
(37 results)
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[Journal Article] RIM1 confers sustained activity and neurotransmitter vesicle anchoring to presynaptic Ca^<2+>channels.2007
Author(s)
Kiyonaka S, Wakamori M, Miki T, Uriu Y, Nonaka M, Bito H, Beedle AM, Mori E, Hara Y, De Waard M, Kanagawa M, Itakura M, Takahashi M, Campbell KP & Mori Y
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Journal Title
Nature Neurosci. 10
Pages: 691-701
Description
「研究成果報告書概要(和文)」より
Related Report
Peer Reviewed
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[Journal Article] TRPM7 channels in hippocampal neurons detect levels of extracellular divalent cations.2007
Author(s)
Wei W-L, Sun H-S, Olah ME, Sun XiuJun, Czerwinska E, Czerwinski W, Mori Y, Orser BA, Xiong Z-G, Jackson MF, Tymianski M & MacDonald JF
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Journal Title
Proc. Natl. Acad. Sci. USA. 104
Pages: 16323-16328
Description
「研究成果報告書概要(和文)」より
Related Report
Peer Reviewed
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[Journal Article] Galan-mediated upregulation of TPPC6 negatively regulates endothelin-induced cardiac myofibroblast formation and collagen synthesis through NFAT activation.2007
Author(s)
Nishida, M, Onohara, N, Sato, Y, Suda, R, Ogushi, M, Tanabe, S, Inoue, R, Mori, Y, Kurose, H
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Journal Title
J. Biol. Chem 282
Pages: 23117-23128
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] TRPM7 channels in hippocampal neurons detect levels of extracellular divalent cations2007
Author(s)
Wei, W-L, Sun, H-S, Olah, ME, Sun, XiuJun, Czerwinska, E, Czerwinski, W, Mon, Y, Orser, BA, Xiong, Z-G, Jackson, MF, Tymianski, M, MacDonald, JF
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Journal Title
Proc. NatL Acad. Sci. USA 104
Pages: 16323-16328
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Mutation associated with an autosomal dominant cone-rod dystrophy CORD7 modifies RIM1-mediated modulation of voltage-dependent Ca^<2+> channels.2007
Author(s)
Miki, T, Kiyonaka, S, Uriu, Y, De, Waard, M, Wakamori, M, BeedleAM, Campbell, KP, Mori, Y
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Journal Title
Channels 1
Pages: 144-147
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] RIMl confers sustained activity and neurotransmitter vesicle anchoring to presynaptic Ca2+ channels.2007
Author(s)
Kiyonaka S, wakamori M, Miki T, Uriu Y, Nonaka M, Bito H, Beedle AM, Mori E, Hara Y, De Waard M, Kanagawa M, Itakura M, Takahashi M, Campbeil KP & Mori Y
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Journal Title
Nature Neurosci. 10
Pages: 691-701
Related Report
Peer Reviewed
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[Journal Article] TRPM7 channels in hippocampal neurons detect levels of extracellular divalent cations.2007
Author(s)
Wei W-L, Sun H-S, Olah ME, Sun XiuJun, Czerwinska E, Czerwinski W, Mori Y, Orser BA, Xiong Z-G, Jackson MF, Tymianski M & MacDonald JF
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Journal Title
Proc. Natl. Acad. Sci. USA 104
Pages: 16323-16328
Related Report
Peer Reviewed
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[Journal Article] Ca^<2+>/calmodulin dependent myosin light chain kinase is essential for activation of TRPC5 channels expressed in HEK cells.2006
Author(s)
Shimizu, S, Yoshida, T, Wakamori, M, Ishii, M, Okada, T, Takahashi, M,Seto, M, Sakurada, K, Kiuchi, Y, Mori, Y
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Journal Title
J. Physiol. 570
Pages: 219-235
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] A functional AMPA receptor-calcium channel complex in the postsynaptic membrane2006
Author(s)
Kang, MG, Chen, CC, Wakamori, M, Hara, Y, Mori, Y, Campbell, KP
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Journal Title
Proc. Natl. Acad. Sci. USA 103
Pages: 5561-5566
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] TRPM2 activation by cyclic ADP-ribose at body temperature is involved in insulin secretion.2006
Author(s)
Togashi, K, Ham, Y, Higashi, T, Konishi, Y, Tominaga, T, Mori, Tominaga, M
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Journal Title
EMBO J. 25
Pages: 1804-1815
Description
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[Journal Article] Nitric oxide activates TRP channels by cysteine S-nitrosylation.2006
Author(s)
Yoshida, T, Inoue, R, Morii, T, Takahashi, N, Yamamoto, S, Hara, Y, Tominaga, M, Shimizu, S, Sato, Y, Mori, Y
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Journal Title
Nature Chem. Biol. 2
Pages: 596-607
NAID
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Coupling of STIMI to store-operated Ca^<2+> entry through its constitutive and inducible movement in the endoplasmic reticulum.2006
Author(s)
Baba, Y, Hayashi, K, Fujii, Y, Mizushima, A, Watarai, H, Wakamori, M, Numaga, T, Mod, Y, lino, M, Hikida, M, Kurosaki, T
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Journal Title
Proc. Natl. Acad. Sci. USA 103
Pages: 16704-16709
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] RIM1 confers sustained activity and neurotransmitter vesicle anchoring to presynaptic Ca^<2+> channels.2001
Author(s)
Kiyonaka, S, Wakamori, M, Mild, T, thin, Y, Nonaka, M, Bito, H, Beadle, AM. Mori, E, Hara, Y, De, Waard, M, Kanagawa, M, Itakura, M, Takahashi, M, Campbell, KP, Mori, Y
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Journal Title
Nature Neurosci. 10
Pages: 691-701
Description
「研究成果報告書概要(欧文)」より
Related Report
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