Control of liver fibrosis after transplantation by immunomodulation
Project/Area Number |
23390322
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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 |
Digestive surgery
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Research Institution | Kyoto University |
Principal Investigator |
KOJIRO Taura 京都大学, 医学(系)研究科(研究院), 助教 (80378629)
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Co-Investigator(Kenkyū-buntansha) |
UEMOTO Shinji 京都大学, 医学研究科, 教授 (40252449)
HATANO Etsuro 京都大学, 医学研究科, 講師 (80359801)
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Project Period (FY) |
2011-04-01 – 2014-03-31
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2013: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2011: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
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Keywords | 肝線維化 / 肝移植 / 脾臓 / 免疫 / 肝線進化 / 星細胞 / Helper T細胞 / サイトカイン |
Research Abstract |
To investigate the effects of splenectomy on liver fibrosis, BALB/c mice underwent splenectomy or sham operation and subjected to carbon tetrachloride (CCl4) or thioacetamide (TAA) treatments. Splenectomy significantly suppressed liver fibrosis in the CCl4 and TAA models. The inhibitory effect of splenectomy on liver fibrosis was not observed in SCID mice. To investigate the mechanisms underlying these effects, we investigated the change of liver Th1/Th2 balance. As a result, splenectomy shifted Th1/Th2 balance toward Th1-dominance. In addition, the number of CD4+ lymphocytes in the spleen was decreased. In contrast, that in the liver was increased. GFP+ splenic lymphocytes were transplanted into the spleen of wild type mice. GFP+CD4+ lymphocytes appeared in the liver after induction of fibrosis and the vast majority of them were Th2 lymphocytes by flow cytometry. We conclude that splenectomy suppresses progression of liver fibrosis at least partly through restoring the Th1/Th2 balance.
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Report
(4 results)
Research Products
(23 results)
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[Journal Article] Effect of olprinone on liver microstructure in rat partial liver transplantation2013
Author(s)
Yamanaka K, Hatano E, Iguchi K, Yamamoto G, Sato M, Toriguchi K, Tanabe K, Takemoto K, Nakamura K, Koyama N, Narita M, Nagata H, Taura K, Uemoto S
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Journal Title
J Surg Res
Volume: 183(1)
Issue: 1
Pages: 391-396
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Effects of oral intake of hydrogen water on liver fibrogenesis in mice2013
Author(s)
Koyama Y, Taura K, Hatano E, Tanabe K, Yamamoto G, Nakamura K, Yamanaka K, Kitamura K, Narita M, Nagata H, Yanagida A, Iida T, Iwaisako K, Fujinawa H, Uemoto S
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Journal Title
Hepatol Res
Volume: May 20
Issue: 6
Pages: 663-677
DOI
Related Report
Peer Reviewed
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[Journal Article] Protection from liver fibrosis by a peroxisome proliferator-activated receptor δ agonist2012
Author(s)
Iwaisako K, Haimerl M, Paik YH, Taura K, Kodama Y, Sirlin C, Yu E, Yu RT, Downes M, Evans RM, Brenner DA, Schnabl B
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Journal Title
Proc Natl Acad Sci U S A
Volume: 109
Issue: 21
Pages: 1369-76
DOI
Related Report
Peer Reviewed
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[Journal Article] Non-alcoholic steatohepatitis-induced fibrosis : Toll-like receptors, reactive oxygen species and Jun N-terminal kinase2011
Author(s)
Brenner DA, Seki E, Taura K, Kisseleva T, Deminicis S, Iwaisako K, Inokuchi S, Schnabl B, Oesterreicher CH, Paik YH, Miura K, Kodama Y
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Journal Title
Hepatology Research
Volume: 41
Issue: 7
Pages: 683-686
DOI
Related Report
Peer Reviewed
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[Presentation] 脾臓摘出術は肝臓におけるTh1/Th2 サイトカインバランスの変化を介して肝線維化を抑制する2014
Author(s)
田邉和孝, 田浦康二朗, 波多野悦朗, 小山幸法, 山本玄, 西尾太宏, 奥田雄紀浩, 中村公治郎, 鳥口寛, 竹本研史, 上本伸二
Organizer
第114回日本外科学会定期学術集会
Place of Presentation
国立京都国際会館(京都市)
Related Report
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