Research Topics
Genomes and Genes | Tohru YamakuniSummaryAffiliation: Tohoku University Country: Japan Publications
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Publications
Expression of V-1, a novel catecholamine biosynthesis regulatory protein, is enhanced by hypertension in atrial myocytes of Dahl salt-sensitive ratsTohru Yamakuni
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
Biochem Biophys Res Commun 298:793-7. 2002..It is also suggested that V-1 expression is increased by hypertension in DS rat atrium...
V-1, a catecholamine biosynthesis regulatory protein, positively controls catecholamine secretion in PC12D cellsTohru Yamakuni
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba ku, Sendai 980 8578, Japan
FEBS Lett 530:94-8. 2002..These results suggest that the enhancement of high K(+)-induced dopamine secretion by V-1 overexpression results from the potentiation of high K(+)-induced [Ca(2+)](i) elevation and the increase in the number of dense-cored vesicles...
Pharmacological action of nobiletin, a component of AURANTII NOBILIS PERICARPIUM with anti-dementia activity, and its application for development of functional foodsTohru Yamakuni
Nippon Yakurigaku Zasshi 132:155-9. 2008
[Preventive action of nobiletin, a constituent of AURANTII NOBILIS PERICARPIUM with anti-dementia activity, against amyloid-beta peptide-induced neurotoxicity expression and memory impairment]Tohru Yamakuni
Tohoku University, Sendai, Japan
Yakugaku Zasshi 130:517-20. 2010..The natural compound with these unique actions has thus potential to become a novel drug for fundamental treatment of AD...
4'-Demethylnobiletin, a bioactive metabolite of nobiletin enhancing PKA/ERK/CREB signaling, rescues learning impairment associated with NMDA receptor antagonism via stimulation of the ERK cascadeMd Al Rahim
Laboratory of Pharmacotherapy, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba ku, Sendai 980 8578, Japan
Biochemistry 48:7713-21. 2009....
Nobiletin, a citrus flavonoid that improves memory impairment, rescues bulbectomy-induced cholinergic neurodegeneration in miceAkira Nakajima
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980 8578, Japan
J Pharmacol Sci 105:122-6. 2007..These results suggest that nobiletin rescues OBX-induced cholinergic neurodegeneration, accompanied by improvement of impaired memory in OBX mice...
Nobiletin, a citrus flavonoid with neurotrophic action, augments protein kinase A-mediated phosphorylation of the AMPA receptor subunit, GluR1, and the postsynaptic receptor response to glutamate in murine hippocampusKentaro Matsuzaki
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6 3 Aoba, Aramaki, Aoba ku, Sendai 980 8578, Japan
Eur J Pharmacol 578:194-200. 2008..These findings suggest that nobiletin probably up-regulates synaptic transmission via the postsynaptic AMPA receptors at least partially by stimulation of PKA-mediated phosphorylation of GluR1 receptor in the hippocampus...
Nobiletin improves brain ischemia-induced learning and memory deficits through stimulation of CaMKII and CREB phosphorylationYui Yamamoto
Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki Aoba Aoba ku, Sendai 980 8578, Japan
Brain Res 1295:218-29. 2009..These findings suggest that the activation of CaMKII and ERK signaling in part mediates improvement of ischemia-induced learning and memory deficits by nobiletin...
A novel diol-derivative of chalcone produced by bioconversion, 3-(2,3-dihydroxyphenyl)-1-phenylpropan-1-one, activates PKA/MEK/ERK signaling and antagonizes Abeta-inhibition of the cascade in cultured rat CNS neuronsMd Al Rahim
Department of Pharmacotherapy, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Sendai, Japan
Eur J Pharmacol 600:10-7. 2008....
Nobiletin, a citrus flavonoid, improves memory impairment and Abeta pathology in a transgenic mouse model of Alzheimer's diseaseHiroshi Onozuka
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6 3 Aoba, Aramaki, Aoba ku, Sendai 980 8578, Japan
J Pharmacol Exp Ther 326:739-44. 2008..These findings suggest that this natural compound has potential to become a novel drug for fundamental treatment of AD...
Three-membered ring sesquiterpenoids with NGF-potentiating activity from the roots of Valeriana faurieiYuanqiang Guo
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
Planta Med 72:373-5. 2006..Their structures were elucidated on the basis of spectroscopic analysis. Compounds 2 and 3 showed enhancing activity on nerve growth factor (NGF)-mediated neurite outgrowth in PC 12D cells...
Bioactive ent-clerodane diterpenoids from the aerial parts of Baccharis gaudichaudianaYuanqiang Guo
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
J Nat Prod 69:274-6. 2006..A known compound, 7-oxo-ent-clerod-3-en-15,16:18,19-diolide, was also identified. Compounds 1 and 2 showed enhancing activity of nerve growth factor (NGF)-induced neurite outgrowth in PC 12D cells...
Nobiletin, a citrus flavonoid, reverses learning impairment associated with N-methyl-D-aspartate receptor antagonism by activation of extracellular signal-regulated kinase signalingAkira Nakajima
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6 6 11 404 Aoba, Aramaki, Aoba ku, Sendai 980 8579, Japan
J Pharmacol Exp Ther 321:784-90. 2007....
Garcinone B reduces prostaglandin E2 release and NF-kappaB-mediated transcription in C6 rat glioma cellsTohru Yamakuni
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
Neurosci Lett 394:206-10. 2006..These results suggest that garcinone B becomes a unique pharmacological tool to investigate intracellular signaling pathways involved in inflammation...
Nobiletin restoring beta-amyloid-impaired CREB phosphorylation rescues memory deterioration in Alzheimer's disease model ratsKentaro Matsuzaki
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba ku, Sendai 980 8578, Japan
Neurosci Lett 400:230-4. 2006..In the AD model rats, nobiletin showed protective effects on Abeta(1-40)-induced impairment of learning ability. These results suggest that nobiletin has the potential for becoming a novel lead compound for drug development for AD...
Nardosinone, the first enhancer of neurite outgrowth-promoting activity of staurosporine and dibutyryl cyclic AMP in PC12D cellsPing Li
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Sendai, Aoba 980-8578, Japan
Brain Res Dev Brain Res 145:177-83. 2003..Nardosinone is the first enhancer of the neuritogenic action of dbcAMP and staurosporine and may become a useful pharmacological tool for studying the mechanism of action of not only NGF but also both the neuritogenic substances...
High-performance liquid chromatography with photodiode array detection for determination of nobiletin content in the brain and serum of mice administrated the natural compoundDaisuke Saigusa
Laboratory of Oncology Pharmacy Practice and Sciences, Graduate School of Pharmaceutical Science, Tohoku University, Aoba ku, Sendai, Japan
Anal Bioanal Chem 400:3635-41. 2011..025-10 ng, with coefficient of variation of less than 6.76%. This method enabled us to determine pharmacokinetic parameters of nobiletin given intraperitoneally or per os in the brain of mice...
Proinsulin C-peptide stimulates a PKC/IkappaB/NF-kappaB signaling pathway to activate COX-2 gene transcription in Swiss 3T3 fibroblastsMasashi Kitazawa
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578
J Biochem (Tokyo) 139:1083-8. 2006..These results suggest that C-peptide stimulates the transcription of inflammatory genes via activation of a PKC/IkappaB/NF-kappaB signaling pathway...
Ca2+ channel activating action of maitotoxin in cultured brainstem neuronsAtsushi Kakizaki
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
Eur J Pharmacol 536:223-31. 2006....
Mechanism of neurotrophic action of nobiletin in PC12D cellsHiroyuki Nagase
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
Biochemistry 44:13683-91. 2005....
Evidence for the involvement of protein kinase C in acidic pH-induced contraction in spontaneously hypertensive rat aortaDileep Kumar Rohra
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
Pharmacology 71:10-6. 2004..Furthermore, PKC- and tyrosine kinase-dependent pathways underlying the APIC are independent of each other...
Acidosis-induced protein tyrosine phosphorylation depends on Ca2+ influx via voltage-dependent Ca2+ channels in SHR aortaDileep Kumar Rohra
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
Eur J Pharmacol 504:105-11. 2004..These findings suggest that acidosis-induced Ca2+ influx through VDCC is the upstream event leading to the tyrosine phosphorylation of PI3-kinase, which in turn contributes to the enhancement of Ca2+ entry to some extent in SHR aorta...
Nobiletin and its related flavonoids with CRE-dependent transcription-stimulating and neuritegenic activitiesHiroyuki Nagase
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
Biochem Biophys Res Commun 337:1330-6. 2005..These results suggest that nobiletin with the activity to improve impaired memory may become a potential leading compound for drug development for neurodegenerative disorders exhibiting the dysregulated CRE-dependent transcription...
Honeybee royal jelly and nobiletin stimulate CRE-mediated transcription in ERK-independent and -dependent fashions, respectively, in PC12D cellsHironori Fujiwara
Department of Anti dementia Functional Food Development, Graduate School of Engineering, Tohoku University, Japan
J Pharmacol Sci 116:384-7. 2011..Combining RJ plus nobiletin may activate effectively neuronal functions via enhancement of CRE-mediated transcription...
Glucocorticoid inhibits expression of V-1, a catecholamine biosynthesis regulatory protein, in cultured adrenal medullary cellsYusuke Hiwatashi
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba ku, Sendai 980 8578, Japan
FEBS Lett 528:166-70. 2002....
Ephedorae herba decreases lipopolysaccharide-induced cyclooxgenase-2 protein expression and NF-kappaB-dependent transcription in C6 rat glioma cellsKohichi Aoki
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
J Pharmacol Sci 98:327-30. 2005..These results suggest that Mao prevents LPS-induced NF-kappaB-dependent transcription by inhibiting IkappaB degradation and suppresses an increase in COX-2 protein expression in C6 cells...
Nardosinone enhances nerve growth factor-induced neurite outgrowth in a mitogen-activated protein kinase- and protein kinase C-dependent manner in PC12D cellsPing Li
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
J Pharmacol Sci 93:122-5. 2003..These results suggest that the enhancement of NGF-induced neurite outgrowth from PC12D cells by nardosinone involves activation of a down-stream step of the MAP kinase-dependent cascade of NGF coupled with PKC...
Stimulated tyrosine phosphorylation of phosphatidylinositol 3-kinase causes acidic pH-induced contraction in spontaneously hypertensive rat aortaDileep Kumar Rohra
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
J Pharmacol Exp Ther 303:1255-64. 2002..These results suggest that acidic pH induces an increase in tyrosine phosphorylation of PI3-kinase, resulting in the MLC phosphorylation-dependent contraction of SHR aorta...
Repeated treatment with nicotine induces phosphorylation of NMDA receptor NR2B subunit in the brain regions involved in behavioral sensitizationAkira Nakajima
Department of Pharmacotherapy, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba ku, Sendai 980 8578, Japan
Neurosci Lett 524:133-8. 2012....
gamma-Mangostin inhibits inhibitor-kappaB kinase activity and decreases lipopolysaccharide-induced cyclooxygenase-2 gene expression in C6 rat glioma cellsKeigo Nakatani
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
Mol Pharmacol 66:667-74. 2004....
IC101 induces apoptosis by Akt dephosphorylation via an inhibition of heat shock protein 90-ATP binding activity accompanied by preventing the interaction with Akt in L1210 cellsHironori Fujiwara
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
J Pharmacol Exp Ther 310:1288-95. 2004..These results suggest that IC101 dephosphorylates Akt through an inhibition of HSP90 functions, resulting in the interaction with Akt to induce apoptotic cell death of L1210 cells...
Neurobehavioral effects of tetrabromobisphenol A, a brominated flame retardant, in miceAkira Nakajima
Laboratory of Pharmacotherapy, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba ku, Sendai 980 8578, Japan
Toxicol Lett 189:78-83. 2009..Together, the possibility of widespread human exposure to TBBPA warrants further studies to characterize its neurotoxicity...
Nobiletin induces inhibitions of ras activity and mitogen-activated protein kinase kinase/extracellular signal-regulated kinase signaling to suppress cell proliferation in c6 rat glioma cellsKoichi Aoki
Department of Pharmacotherapy, Graduate School of Pharmaceutical Sciences, Tohoku University
Biol Pharm Bull 36:540-7. 2013..Thus, the natural compound has potential to be a therapeutic agent for glioma...
Iridoids and sesquiterpenoids with NGF-potentiating activity from the rhizomes and roots of Valeriana faurieiYuanqiang Guo
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
Chem Pharm Bull (Tokyo) 54:123-5. 2006..Their structures were elucidated on the basis of spectroscopic analysis. Compounds 2 and 4 showed enhancing activity of nerve growth factor (NGF)-induced neurite outgrowth in PC 12D cells...
[V-1, a catecholamine biosynthesis regulatory protein, enhances GTP cyclohydrolase I gene transcription in a cAMP-responsive element dependent manner]Tohru Yamakuni
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
Nippon Yakurigaku Zasshi 120:82P-84P. 2002..These results suggest that V-1 promotes GCH gene expression via a CRE-dependent transcription to positively control the BH4 biosynthesis in catecholaminergic cells...
Intracellular cAMP controls a physical association of V-1 with CapZ in cultured mammalian endocrine cellsMasashi Kitazawa
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba ku, Sendai 980 8578, Japan
Biochem Biophys Res Commun 331:181-6. 2005....
Picrosides I and II, selective enhancers of the mitogen-activated protein kinase-dependent signaling pathway in the action of neuritogenic substances on PC12D cellsPing Li
Department of Pharmaceutical Molecular Biology, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
Life Sci 71:1821-35. 2002..Picrosides I and II may become selective pharmacological tools for studying the MAP kinase-dependent signaling pathway in outgrowth of neurites induced by many kinds of neuritogenic substances including bFGF...
Metronomic scheduling of a cyclic hexapeptide Ra-VII for anti-angiogenesis, tumor vessel maturation and anti-tumor activityTakayuki Koizumi
Department of Vascular Biology, Institute of Development, Aging, and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-857, Japan
Cancer Sci 97:665-74. 2006..A careful dose setting of RA-VII is crucial to obtain therapeutic superiority, possibly through tumor vessel maturation and a better distribution of the compound in the tumor tissue...
Overexpression of V-1 prevents nitric oxide-induced cell death: involvement of enhanced tetrahydrobiopterin biosynthesisKohei Yuyama
Laboratory of Molecular Recognition, Graduate School of Integrated Science, Yokohama City University, Yokohama, Japan
J Neurosci Res 72:716-25. 2003..Moreover, these findings suggest the up-regulation of V1 expression as a possible therapeutic target for protection against the insult of NO-induced oxidative stress...
Down-regulation of an ankyrin repeat-containing protein, V-1, during skeletal muscle differentiation and its re-expression in the regenerative process of muscular dystrophyYuko Furukawa
Mitsubishi Kagaku Institute of Life Sciences, Minamiooya 11, Machida, 194 8511, Tokyo, Japan
Neuromuscul Disord 13:32-41. 2003..Thus, it seems that V-1 is a good marker for early stage of muscle regeneration and changes of its expression suggest that V-1 plays a role in prenatal muscle differentiation and postnatal muscle regeneration...
Enhanced expression of GTP cyclohydrolase I in V-1-overexpressing PC12D cellsTakahiro Suzuki
Division of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Aichi 470 1192, Japan
Biochem Biophys Res Commun 293:962-8. 2002..Promoter analysis showed increased reporter activity in the construct with 150 bp of the promoter region of the human GCH gene, suggesting the involvement of cAMP-responsive element-mediated transcriptional regulation...
Clerodane diterpenoids and flavonoids with NGF-potentiating activity from the aerial parts of Baccharis gaudichaudianaYuanqiang Guo
Department of Pharmaceutical Sciences, Nankai University, Tianjin, P R China
Chem Pharm Bull (Tokyo) 55:1532-4. 2007..Their structures were elucidated on the basis of spectroscopic analysis. Compounds 2, 3, and 5 showed enhancing activity of nerve growth factor (NGF)-induced neurite outgrowth in PC 12D cells...
Identification of ATF-2 as a transcriptional regulator for the tyrosine hydroxylase geneTakahiro Suzuki
Division of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Aichi 470 1192, Japan
J Biol Chem 277:40768-74. 2002....
