2013 Fiscal Year Final Research Report
Molecular mechanisms of memory B cell differentiation in germinal centers
Project/Area Number |
23390121
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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 |
Immunology
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Research Institution | Chiba University |
Principal Investigator |
TOKUHISA Takeshi 千葉大学, 医学(系)研究科(研究院), 教授 (20134364)
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Co-Investigator(Kenkyū-buntansha) |
ARIMA Masafumi 千葉大学, 大学院・医学研究院, 講師 (00202763)
SAKAMOTO Akemi 千葉大学, 大学院・医学研究院, 助教 (90359597)
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Project Period (FY) |
2011-04-01 – 2014-03-31
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Keywords | 免疫記憶 / Bリンパ球 / 胚中心 / サイトカイン / 抗体産生細胞 / IgE抗体 |
Research Abstract |
To elucidate a role of IL-21 or Bcl6 in differentiation of high affinity IgG producing memory B cells and long-lived plasma cells in germinal centers, we used IL-21-deficient or Bcl6-deficient mice. Using these mice, we demonstrated that IL-21 is essential to differentiation of high affinity IgG producing long-lived plasma cells, and that IL-21 or Bcl6 represses the Ig class switch recombination to IgE and augments the differentiation of high affinity IgG producing memory B cells and long-lived plasma cells.
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Research Products
(22 results)
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[Journal Article] Plant homeodomain finger protein 11 promotes class switch recombination to IgE in murine activated B cells2014
Author(s)
Ikari J, Inamine A, Yamamoto T, Watanabe-Takano H, Yoshida N, Fujimura L, Taniguchi T, Sakamoto A, Hatano M, Tatsumi K, Tokuhisa T, and Arima M
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Journal Title
Allergy
Volume: 69
Pages: 223-230
DOI
Peer Reviewed
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[Journal Article] Lack of both α2-antiplasmin and plasminogen activator inhibitor type-1 induces high IgE production2013
Author(s)
Okada K, Ueshima S, Kawao N, Yano M, Tamura Y, Tanaka M, Sakamoto A, Hatano M, Arima M, Miyata S, Nagai N, Tokuhisa T, and Matsuo O
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Journal Title
Life Sci
Volume: 93
Pages: 89-95
DOI
Peer Reviewed
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[Journal Article] ADAR1 protein induces adenosine-targeted DNA mutations in senescent Bcl6 gene-deficient cells2013
Author(s)
Tsuruoka N, Arima M, Yoshida N, Okada S, Sakamoto A, Hatano M, Satake H, Arguni E, Wang Ji-Y, Yang J-H, Nishikura K, Sekiya S, Shozu M, and Tokuhisa T
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Journal Title
J. Biol. Chem
Volume: 288
Pages: 826-836
DOI
Peer Reviewed
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[Journal Article] CD40 amplifies Fas-mediated apoptosis : a mechanism contributing to emphysema2012
Author(s)
Shigeta A, Tada Y, Wang JY, Ishizaki S, Tsuyusaki J, Yamauchi K, Kasahara Y, Iesato K, Tanabe N, Takiguchi Y, Sakamoto A, Tokuhisa T, Shibuya K, Hiroshima K, West J, and Tatsumi K
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Journal Title
Am. J. Physiol. Lung Cell Mol. Physiol
Volume: 303
Pages: 141-151
DOI
Peer Reviewed
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[Journal Article] BAZF, a novel component of cullin3-based E3 ligase complex, mediates VEGFR and Notch cross-signalling in angiogenesis2012
Author(s)
Ohnuki H, Inoue H, Takemori N, Nakayama H, Sakaue T, Fukuda S, Miwa D, Nishiwaki E, Hatano M, Tokuhisa T, Endo Y, Nose M, and Higashiyama S
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Journal Title
Blood
Volume: 119
Pages: 2688-2698
DOI
Peer Reviewed
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[Journal Article] Bcl6 in pulmonary epithelium coordinately controls the expression of the CC-type chemokine genes and attenuates allergic airway inflammation2011
Author(s)
Seto T, Yoshitake M, Ogasawara T, Ikari J, Sakamoto A, Hatano M, Hirata H, Fukuda T, Kuriyama T, Tatsumi K, Tokuhisa T, and Arima M
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Journal Title
Clin. Exp. Allergy
Volume: 41
Pages: 1568-1578
DOI
Peer Reviewed
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[Journal Article] Outcome prediction in sepsis combined use of genetic polymorphisms - A study in Japanese population2011
Author(s)
Shimada T, Oda S, Sadahiro T, Nakamura M, Hirayama Y, Watanabe E, Abe R, Nakada TA, Tateishi Y, Otani S, Hirasawa H, Tokuhisa T, and Uno H
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Journal Title
Cytokine
Volume: 54
Pages: 79-84
DOI
Peer Reviewed
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