The role of protein kinase R (PKR) for hepatocarcinogenesis and progression of hepatocellular carcinoma during inflammation due to hepatitis C virus infection.
Project/Area Number |
15K09006
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Gastroenterology
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Research Institution | Ehime University |
Principal Investigator |
Hiasa Yoichi 愛媛大学, 医学系研究科, 教授 (70314961)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
Keywords | Protein kinase R / Hepatocellular carcinoma / C型肝炎ウイルス / eIF2-alpha / PERK / ERストレス / DNMT / MAPK / PKR-like ER kinase / eIF2alpha / AP-1 / hepatitis C virus / hepatocellular carcinoma / DNAメチル化 / JNK1 |
Outline of Final Research Achievements |
Protein kinase R (PKR) is recognized as a key executor of anti-hepatitis C virus (HCV). Moreover, over-expressed PKR up-regulates the mitogen-activated protein kinase (MAPK) signaling pathway, and it promotes hepatocarcinogenesis and progression of hepatocellular carcinoma (HCC) in vitro models. In this study, we investigate the total potential of PKR against the role for HCC by using in vivo models, including human specimens after HCC resection and HCC transplanted nude mice model. In also human specimens, over-expressed PKR enhanced MAPK signaling, and in mice model, PKR inhibitor inhibited progression of HCC. Additionally, PKR has epigenetic roles to regulate DNMTs in HCV infected cells. Moreover, there is not obvious interaction between PKR and PERK, and PKR would regulate the activity of eIF2-alpha cooperated with PERK, which is a key molecule for ER stress and cell inflammation. From those data, PKR could be one of the therapeutic targets to regulate HCC in patients with HCV.
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Report
(4 results)
Research Products
(46 results)
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[Journal Article] Cigarette smoking is a risk factor for the onset of fatty liver disease in nondrinkers: A longitudinal cohort study.2018
Author(s)
Okamoto M, Miyake T, Kitai K, Furukawa S, Yamamoto S, Senba H, Kanzaki S, Deguchi A, Koizumi M, Ishihara T, Miyaoka H, Yoshida O, Hirooka M, Kumagi T, Abe M, Matsuura B, Hiasa Y.
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Journal Title
PLoS One.
Volume: 13
Issue: 4
Pages: e0195147-e0195147
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Upregulated absorption of dietary palmitic acids with changes in intestinal transporters in non-alcoholic steatohepatitis (NASH)2017
Author(s)
Utsunomiya H, Yamamoto Y, Takeshita E, Tokumoto Y, Tada F, Miyake T, Hirooka M, Abe M, Kumagi T, Matsuura B, Ikeda Y, Hiasa Y
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Journal Title
J Gastroenterol
Volume: 印刷中
Issue: 8
Pages: 940-954
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Predictors of treatment efficacy and ALT non-normalization with sofosbuvir/ribavirin therapy for patients with hepatitis C virus genotype 2.2017
Author(s)
Watanabe T, Tokumoto Y, Joko K, Michitaka K, Horiike N, Tanaka Y, Tada F, Kisaka Y, Nakanishi S, Nonaka T, Yamauchi K, Hirooka M, Abe M, Hiasa Y.
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Journal Title
J Med Virol.
Volume: 89
Issue: 9
Pages: 1567-1573
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Role of hepatic resection in patients with intermediate-stage hepatocellular carcinoma: A multicenter study from Japan.2017
Author(s)
Tada T, Kumada T, Toyoda H, Tsuji K, Hiraoka A, Itobayashi E, Nouso K, Kariyama K, Ishikawa T, Hirooka M, Hiasa Y.
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Journal Title
Cancer Sci.
Volume: 108
Issue: 7
Pages: 1414-1420
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Downregulation of ANP32B exerts anti-apoptotic effects in hepatocellular carcinoma.2017
Author(s)
Ohno Y, Koizumi M, Nakayama H, Watanabe T, Hirooka M, Tokumoto Y, Kuroda T, Abe M, Fukuda S, Higashiyama S, Kumagi T, Hiasa Y.
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Journal Title
PLoS One.
Volume: 12
Issue: 5
Pages: 0177343-0177343
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Nonalcoholic fatty liver with a hepatic arterial buffer response strongly associated with future metabolic disease.2017
Author(s)
Hirooka M, Koizumi Y, Miyake T, Watanabe T, Yoshida O, Tokumoto Y, Yukimoto A, Nakamura Y, Imai Y, Abe M, Hiasa Y.
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Journal Title
Hepatol Commun.
Volume: 1
Issue: 7
Pages: 623-633
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Quantitative assessment of liver fibrosis reveals a nonlinear association with fibrosis stage in nonalcoholic fatty liver disease.2017
Author(s)
Masugi Y, Abe T, Tsujikawa H, Effendi K, Hashiguchi A, Abe M, Imai Y, Hino K, Hige S, Kawanaka M, Yamada G, Kage M, Korenaga M, Hiasa Y, Mizokami M, Sakamoto M
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Journal Title
Hepatol Commun
Volume: 27
Issue: 1
Pages: 58-68
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Differences in the risk of fatty liver for onset of impaired fasting glucose according to baseline plasma glucose levels2017
Author(s)
Miyake T, Hirooka M, Yoshida O, Furukawa S, Kumagi T, Koizumi M, Yamamoto S, Kuroda T, Arimitsu E, Takeshita E, Abe M, Kitai K, Matsuura B, Hiasa Y
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Journal Title
J Gastroenterol
Volume: 52
Issue: 2
Pages: 237-244
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Interleukin-34 as a fibroblast-derived marker of liver fibrosis in patients with non-alcoholic fatty liver disease.2016
Author(s)
Shoji H, Yoshio S, Mano Y, Kumagai E, Sugiyama M, Korenaga M, Arai T, Itokawa N, Atsukawa M, Aikata H, Hyogo H, Chayama K, Ohashi T, Ito K, Yoneda M, Nozaki Y, Kawaguchi T, Torimura T, Abe M, Hiasa Y, Kamiyama T, Fukai M, Taketomi A, Mizokami M, Kanto T*
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Journal Title
Scientific Reports
Volume: 6:28814
Issue: 1
Pages: 1-10
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Low alcohol consumption increases the risk of impaired glucose tolerance in patients with non-alcoholic fatty liver disease2016
Author(s)
Miyake T, Kumagi T, Hirooka M, Furukawa S, Yoshida O, Koizumi M, Yamamoto S, Watanabe T, Yamamoto Y, Tokumoto Y, Takeshita E, Abe M, Kitai K, Matsuura B, Hiasa Y.
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Journal Title
Journal of Gastroenterology
Volume: Epub ahead of print
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Effects of long-term entecavir treatment on the incidence of hepatocellular carcinoma in chronic hepatitis B patients2016
Author(s)
Watanabe T, Tokumoto Y, Joko K, Michitaka K, Mashiba T, Hiraoka A, Ochi H, Koizumi Y, Tada F, Hirooka M, Yoshida O, Imai Y, Abe M, Hiasa Y.
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Journal Title
Hepatology International
Volume: 10
Issue: 2
Pages: 320-327
DOI
Related Report
Peer Reviewed
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[Journal Article] Characterization of the biliary tract by virtual ultrasonography constructed by gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging2015
Author(s)
Koizumi Y, Hirooka M, Ochi H, Tokumoto Y, Takechi M, Hiraoka A, Ikeda Y, Kumagi T, Matsuura B, Abe M, Hiasa Y.
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Journal Title
Journal of Medical Ultrasonics
Volume: 42
Issue: 2
Pages: 185-193
DOI
NAID
Related Report
Peer Reviewed / Open Access
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