2011 Fiscal Year Final Research Report
Molecular elucidation and medical significance of redox-sensitive TRP channels in inflammatory cell infiltration.
Project/Area Number |
20249015
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
General medical chemistry
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Research Institution | Kyoto University |
Principal Investigator |
MORI Yasuo 京都大学, 大学院・地球環境学堂, 教授 (80212265)
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Project Period (FY) |
2008 – 2011
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Keywords | 生体分子医学 / 炎症 |
Research Abstract |
Reactive oxygen species(ROS) induce chemokines responsible for the recruitment of inflammatory cells at inflamed sites in injury or infection. Here, we demonstrate that the plasma membrane Ca^2-permeable channel TRPM2 controls ROS-induced chemokine production in monocytes. TRPM2 Ca^2 influx controls the ROS-induced signal cascade responsible for chemokine production which aggravates inflammation. On the other hand, Oxygen(O_2) intake is tightly controlled in order to secure energy production while minimizing the risk of oxidative damage in aerobic organisms. Mammals' respiratory systems have evolved to respond to changes in O_2 availability via the carotid body and other chemoreceptors. Here, our functional examination of the TRP cation channels expressed in mouse vagal chemoreceptors reveals that the TRPA1 channel is activated by O2 and mediates ionic currents in hyperoxia via its prominent sensitivity to cysteine-mediated oxidation. TRPA1 is also activated in hypoxia through relief from O_2-dependent inhibition by prolyl hydroxylases. Hyperoxia-and hypoxia-induced vagal afferent nerve activities and their consequent ventilatory responses are are controlled by TRPA1. Thus, TRPA1 is an O_2 sensor that regulates O_2supply in vivo.
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Research Products
(65 results)
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[Journal Article] TRPA1 underlies a sensing mechanism for O_22011
Author(s)
Takahashi N, Kuwaki K, Kiyonaka S, Numata T, Kozai D, Mizuno Y, Yamamoto S, Naito S, Knevels E, Carmeliet P, Oga T, Kaneko S, Suga S, Nokami T, Yoshida J & Mori Y
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Journal Title
Nature Chem. Biol.
Volume: 7
Pages: 701-711
DOI
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[Journal Article] TRPC3-mediated Ca^<2+> influx contributes toRac1-mediated production of reactive oxygen species in MLP-deficient mouse hearts2011
Author(s)
Kitajima N, Watanabe K, Morimoto S, Sato Y, Kiyonaka S, Hoshijima M, Ikeda Y, Nakaya M, Ide T, Mori Y, Kurose H & Nishida M
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Journal Title
Biochem. Biophys. Res. Commun.
Volume: 409
Pages: 108-113
DOI
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[Journal Article] Inhibition of TRPC6 channel activity contributes to the anti-hypertrophic effects of natriuretic peptides-guanylyl cyclase-Asignaling in the heart2010
Author(s)
Kinoshita H, Kuwahara K, Nishida M, Jiang Z, Rong X, Kiyonaka S, Kuwabara Y, Kurose H, Inoue R, Mori Y, Li Y, Nakagawa Y, Usami S, Fujiwara M, Yamada Y, Minami T, Ueshima K & Nakao K
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Journal Title
Circ. Res.
Volume: 106
Pages: 1849-1860
DOI
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[Journal Article] Differential redox regulation of ORAI channels : a mechanism to tune cellular calcium responses2010
Author(s)
Bogeski I, Kummerow C, Al-Ansary D, Koehler R, Schwarz EC, Kozai D, Takahashi N, Peinelt C, Griesemer D, Bozem B, Mori Y, Hoth M & Niemeyer BA
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Journal Title
Science Signaling
Volume: 3
DOI
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[Journal Article] TRPM1 is a component of the retinal ON bipolar cell transduction channel in themGluR6 cascade2010
Author(s)
Koike C, Obara T, Uriu Y, Numata T, Sanuki R, Miyata K, Koyasu T, Ueno S, Funabiki K, Tani A, Ueda H, Kondo M, Mori Y, Tachibana M & Furukawa T
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Journal Title
Proc. Natl. Acad. Sci. USA
Volume: 107
Pages: 332-337
DOI
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[Journal Article] A single circularly permuted GFP sensor forinositol-1, 3, 4, 5-tetrakisphosphate based on asplit PH domain2009
Author(s)
Sakaguchi R, Endo T, Yamamoto S, Tainaka K, Sugimoto K, Fujieda N, Kiyonaka S, Mori Y & Morii T
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Journal Title
Bioorg. Med. Chem.
Volume: 17
Pages: 7381-7386
DOI
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[Journal Article] A pathogenic C-terminustruncatedPolycistin-2 mutant enhances receptor-activated Ca^<2+> entry via association with TRPC3 and TRPC72009
Author(s)
Miyagi K, Kiyonaka S, Yamada K, Miki T, Mori E, Kato K, Numata T, Sawaguchi Y, Numaga T, Kimura T, Kanai Y, Kawano M, Wakamori M, Nomura H, Koni I, Yamagishi M & Mori Y
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Journal Title
J. Biol. Chem.
Volume: 284
Pages: 34400-34412
DOI
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[Journal Article] Molecular characterization of flubendiamide sensitivity in lepidopterousryanodine receptor Ca^<2+> release channel2009
Author(s)
Kato K, Kiyonaka S, Sawaguchi Y, Tohnishi M, Masaki T, Yasokawa N, Mizuno Y, Mori E, Inoue K, Hamachi I, Takeshima H & Mori Y
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Journal Title
Biochemistry
Volume: 48
Pages: 10342-10352
DOI
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[Journal Article] Suppression of hippocampal TRPM7 protein prevents delayed neuronal death in brain ischemia2009
Author(s)
Sun H-S, Jackson MF, Martin LJ, Jansen K, Teves L, Cui H, Kiyonaka S, Mori Y, Jones M, Forder JP, Golde TE, Orser BA, MacDonald JF & Tymianski M
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Journal Title
Nature Neurosci.
Volume: 12
Pages: 1300-1307
DOI
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[Journal Article] Synergistic activation of vascular TRPC6 channel by receptor and mechanical stimulation via PLC/diacylglycerol and PLA2/£s-hydroxylase/20-HETE pathways2009
Author(s)
Inoue R, Jensen LJ, Jian Z, Shi J, Hai L, Lurie AI, Henriksen FH, Salmons son M, Morita H, Kawarabayashi Y, Mori M, Mori Y & Ito Y
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Journal Title
Circ Res.
Volume: 104
Pages: 1399-1409
DOI
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[Journal Article] STIM protein coupling in the activation of Orai channels2009
Author(s)
Wang Y, Deng X, Zhou Y, Hendron E, Mancarella S, Ritchie MF, Tang XD, Baba Y, Kurosaki T, Mori Y, Soboloff J & Gill DL
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Journal Title
Proc. Natl. Acad. Sci. USA
Volume: 106
Pages: 7391-7396
DOI
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[Journal Article] Selective and direct inhibition of TRPC3channels underlies biological activities of apyrazole compound2009
Author(s)
Kiyonaka S, Kato K, Nishida M, Mio K, Numaga T, Sawaguchi Y, Yoshida T, Wakamori M, Mori E, Numata T, Ishii M, Takemoto H, Ojida A, Watanabe K, Uemura A, Kurose H, Morii T, Kobayashi T, Sato Y, Sato C, Hamachi I & Mori Y
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Journal Title
Proc. Natl. Acad.
Volume: 106
Pages: 5400-5405
DOI
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[Journal Article] TRPM2-mediatedCa^<2+> influx induces chemokine production in monocytes that aggravates in flammatoryneutrophil infiltration2008
Author(s)
Yamamoto S, Shimizu S, Kiyonaka S, Takahashi N, Wajima T, Hara Y, Negoro T, Hiroi T, Kiuchi Y, Okada T, Kaneko S, Lange I, Fleig A, Penner R, Nishi M, Takeshima H & Mori Y
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Journal Title
Nature Med.
Volume: 14
Pages: 738-747
DOI
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