The roles of innate T cells in bacterial infection
先天性 T 细胞在细菌感染中的作用
基本信息
- 批准号:21390130
- 负责人:
- 金额:$ 12.06万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2009
- 资助国家:日本
- 起止时间:2009 至 2011
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Innate T cells are defined as(1) cells that develop in the thymus under different signal pathways from conventional T cells,(2) cells that express an activated and/or memory T-cell phenotype and exhibit immediate effector functions.(3) cells that includd y6 T cells, memory phenotype(MP) CD44^<hlgh> CD62L^<low> CD4^+ and CD8^+ T cells. Innate y6 T cells already differentiate into interleukin(IL)-li-producing cells within the fetal thymus. HESl plays a role in regulating differentiation of IL-li producing y6 T cells in thymus and" naturally occurring y6 T cells" play a protective role in the lung at very early stage after systemic infection with Mycobacterium bovis BCG. We further found that IL-lsKo mice are highly susceptible to Listeria monocytogenes and bystander proliferation of the innate CD8^+ T cells induced by L. monocytogenes was impaired in the absence of IL-Is. These results suggested that IL-Is plays an important role in the maintenance and functions of innate CD8^+ T cells, which participate in innate host defense mechanisms. We also found that CDsoLKO mice are highly susceptible to L. monocytogenes infection accompanied by a marked decrease in innate MP IFN-y+ CD4+ T cells at an early stage after infection. These findings suggested that a potential role of CDsoL in activation of innate CD4^+ T cells at an early stage after bacterial in fection.
先天性T细胞定义为(1)在胸腺中以与常规T细胞不同的信号途径发育的细胞,(2)表达活化和/或记忆T细胞表型并表现出即时效应功能的细胞。(3)包括γ 6 T细胞、记忆表型(MP)CD 44、<hlgh>CD 62、<low>CD 4 ^+和CD 8 ^+ T细胞。先天性γ 6 T细胞已经在胎儿胸腺内分化成产生白细胞介素(IL)-1的细胞。HES 1在调节胸腺中产生IL-11的γ 6 T细胞的分化中起作用,并且”天然存在的γ 6 T细胞”在用牛分枝杆菌BCG全身感染后的非常早期阶段在肺中起保护作用。我们进一步发现,IL-1 sKo小鼠对单核细胞增生李斯特菌高度易感,并且由李斯特菌诱导的先天性CD 8 ^+ T细胞的旁观者增殖。单核细胞增多症在没有IL-1的情况下受损。这些结果表明,IL-1 s在先天性CD 8 ^+ T细胞的维持和功能中起重要作用,其参与先天性宿主防御机制。我们还发现CDsoLKO小鼠对L.单核细胞增多症感染伴随着感染后早期先天MP IFN-γ + CD 4 + T细胞的显著减少。这些结果表明,CDsol在细菌感染后的早期阶段在先天性CD 4 ^+ T细胞的活化中具有潜在的作用。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Exogenous IL-15 protects CD8+ T Cell Contraction after BCG vaccination but fails to provide protection against subsequent infection with Mycobacterium tuberculosis
外源性 IL-15 可保护 BCG 疫苗接种后 CD8 T 细胞收缩,但无法提供针对后续结核分枝杆菌感染的保护作用
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:Tang C.;Yamada H.;Shibata K.;Yoshida S.;Wajjwalku W.;and Yoshikai Y.
- 通讯作者:and Yoshikai Y.
Functions of ILliproducing y8 T cells The Open
产生 ILli 的 y8 T 细胞的功能 The Open
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:山本大介;南雲浩志;吉田栄人;Shibata K. Yoshikai Y.
- 通讯作者:Shibata K. Yoshikai Y.
CD30 Ligand Is a Target for a Novel Biological Therapy against Colitis Associated with Th17 Responses
- DOI:10.4049/jimmunol.1002229
- 发表时间:2010-12-15
- 期刊:
- 影响因子:4.4
- 作者:Sun, Xun;Yamada, Hisakata;Yoshikai, Yasunobu
- 通讯作者:Yoshikai, Yasunobu
CD30 ligand is a target for a novel biological therapy against allergic rhinitis
CD30配体是抗过敏性鼻炎的新型生物疗法的靶标
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Fuchiwaki T.;Sun X.;Yamada H.;Shibata K Muta H.;Podack E. R. Kawauchi H and Yoshikai Y
- 通讯作者:Podack E. R. Kawauchi H and Yoshikai Y
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YOSHIKAI Yasunobu其他文献
YOSHIKAI Yasunobu的其他文献
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{{ truncateString('YOSHIKAI Yasunobu', 18)}}的其他基金
Host defense against bacterial infection in Notch/IL-7Ralpha axis and CD30L dependent manner.
宿主以Notch/IL-7Rα轴和CD30L依赖性方式防御细菌感染。
- 批准号:
25670213 - 财政年份:2013
- 资助金额:
$ 12.06万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
The roles of primitive T cells bearing Toll-like receptor in microbial infection.
携带Toll样受体的原始T细胞在微生物感染中的作用。
- 批准号:
14370091 - 财政年份:2002
- 资助金额:
$ 12.06万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Molecular mechanisms for generation and maintenance of memory CD8T cells following bacterial infection.
细菌感染后记忆 CD8T 细胞生成和维持的分子机制。
- 批准号:
13226036 - 财政年份:2001
- 资助金额:
$ 12.06万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
Analysis for the pathogenesis of concomitant infection in AIDS and murine AIDS
艾滋病及小鼠艾滋病合并感染的发病机制分析
- 批准号:
10045068 - 财政年份:1998
- 资助金额:
$ 12.06万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Analysis of the molecular mechanisms for early host defense against bacterial infection
宿主早期防御细菌感染的分子机制分析
- 批准号:
09470076 - 财政年份:1997
- 资助金额:
$ 12.06万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
The roles of gammadelta T cells in host defense aginst bacterial infection
γδ T 细胞在宿主防御细菌感染中的作用
- 批准号:
02454191 - 财政年份:1990
- 资助金额:
$ 12.06万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
Analysis of molecular mechanisms of T cell differentiation
T细胞分化的分子机制分析
- 批准号:
62480167 - 财政年份:1987
- 资助金额:
$ 12.06万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)














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