Defining the Langerhans cell niche and the anchoring point
定义朗格汉斯细胞生态位和锚定点
基本信息
- 批准号:21689032
- 负责人:
- 金额:$ 17.56万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Young Scientists (A)
- 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
Langerhans cells(LC) are epidermal dendritic cells with incompletely understood origins that associate with hair follicles(HF) for unknown reasons. In this work, we showed that mouse HFs recruited Gr-1high monocyte-derived LC precursors(pre-LCs), whose epidermal entry was CCR2/6 dependent, whereas CCR8 inhibited LC recruitment. Distinct HF regions differentially expressed CCR2/6 ligands. The isthmus expressed CCL2, the infundibulum expressed CCL20, and keratinocytes in the bulge produced the CCR8 ligand, CCL8. Thus, distinct HF keratinocyte subpopulations promote or inhibit LC repopulation via differential chemokine production, a feature also demonstrated in humans. LCs/Pre-LCs failed to enter hairless skin in both mice and humans, establishing HFs as LC portals, a new paradigm in leukocyte trafficking and regulation of skin inflammation(Nat Immunol, in press). To prove the above findings, we generated and characterized TACE/Sox9 mice, which develop progressive alopecia, and have reported mechanisms of hair loss as an independent manuscript(Stem Cells, in press). Furthermore, during this series of work, we functionally characterized LCs. We showed that LCs extend their dendrites through epidermal tight junctions to uptake skin surface bacteria-derived toxin to induce neutralizing antibodies that protected mice from experimental staphylococcal scalded skin syndrome(Ouchi et al. J Exp Med 2011).
朗格汉斯细胞(LC)是表皮树突状细胞,起源不完全清楚,与毛囊(HF)相关的原因不明。在这项工作中,我们发现小鼠HFs募集Gr-1high单核细胞衍生的LC前体(pre-LC),其表皮进入依赖于CCR 2/6,而CCR 8抑制LC募集。不同的HF区域差异表达CCR 2/6配体。峡部表达CCL 2,漏斗部表达CCL 20,而隆起部的角质形成细胞产生CCR 8配体CCL 8。因此,不同的HF角质形成细胞亚群通过差异化趋化因子的产生促进或抑制LC再增殖,这一特征也在人类中得到证实。LC/Pre-LC不能进入小鼠和人的无毛皮肤,建立了HF作为LC门户,这是白细胞运输和皮肤炎症调节的新范例(Nat Immunol,出版中)。为了证明上述发现,我们产生并表征了TACE/Sox 9小鼠,其发展为进行性脱发,并且已经将脱发的机制作为独立的手稿报道(Stem Cells,出版中)。此外,在这一系列的工作中,我们的功能特点的LC。我们发现LC通过表皮紧密连接延伸其树突以摄取皮肤表面细菌衍生的毒素,从而诱导保护小鼠免受实验性葡萄球菌烫伤皮肤综合征的中和抗体(Ouchi等人,J Exp Med 2011)。
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)
Bowen病における中心体制御異常の検討
Bowen 病中心体失调的检查
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:Tsuchimoto;T.;Sakata;K.;Matsumoto;Y.;他(8名中6番目);久保亮治
- 通讯作者:久保亮治
External antigen uptake by Langerhans cells with reorganization of epidermal tight junction barriers.
- DOI:10.1084/jem.20091527
- 发表时间:2009-12-21
- 期刊:
- 影响因子:0
- 作者:Kubo A;Nagao K;Yokouchi M;Sasaki H;Amagai M
- 通讯作者:Amagai M
Stress-induced chemokine production by hair follicles regulate dendritic cell trafficking in skin
毛囊应激诱导的趋化因子产生调节皮肤中树突状细胞的运输
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:30.5
- 作者:Keisuke Nagao;Tetsuro Kobayashi;Kazuyo Moro;Manabu Ohyama;Takeya Adachi;Daniela Y. Kitashima;Satoshi Ueha;Keisuke Horiuchi;Hideaki Tanizaki;Kenji Kabashima;Akiharu Kubo;Young-hun Cho;Bjorn E. Clausen;Kouji Matsushima;Makoto Suematsu;Glaucia
- 通讯作者:Glaucia
Dendritic cell trafficking in skin is regulated by hair follicles via chemokine production
皮肤中树突状细胞的运输由毛囊通过趋化因子的产生来调节
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:Keisuke Nagao;Tetsuro Kobayashi;Kazuyo Moro;Kenji Kabashima;Manabu Ohyama;Young-hun Cho;Bjorn E. Clausen;Mark C. Udey;and Masayuki Amagai
- 通讯作者:and Masayuki Amagai
Hair follicles regulate dendritic cell trafficking in skin
毛囊调节皮肤中的树突状细胞运输
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Yamazaki H;Yoshida K;Kotsuma T;Yoshioka Y;Koizumi M;Furukawa S;Kakimoto N;Shimizutani K;Nishimura T;Masaru Takagi;Keisuke Nagao
- 通讯作者:Keisuke Nagao
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NAGAO Keisuke其他文献
NAGAO Keisuke的其他文献
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{{ truncateString('NAGAO Keisuke', 18)}}的其他基金
New method to examine the timing of clear up of solar nebula
检查太阳星云清理时间的新方法
- 批准号:
23340170 - 财政年份:2011
- 资助金额:
$ 17.56万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Evolutional history of planetary materials at the early sage of solarsystem based on I-Xe age determination
基于I-Xe年龄测定的太阳系早期行星物质演化史
- 批准号:
19540512 - 财政年份:2007
- 资助金额:
$ 17.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Comparative study of degassing between Mars and Earth bade on noble gases in Martian meteorites
火星与地球对火星陨石中稀有气体脱气的对比研究
- 批准号:
16540444 - 财政年份:2004
- 资助金额:
$ 17.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Geochemical Study on the Oldest Halite Fossil in the Solar System
太阳系最古老的石盐化石的地球化学研究
- 批准号:
13440165 - 财政年份:2001
- 资助金额:
$ 17.56万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Cosmochemical Study of Halogens Based on Halogen-derived Noble Gas Isotopes
基于卤素稀有气体同位素的卤素宇宙化学研究
- 批准号:
11640487 - 财政年份:1999
- 资助金额:
$ 17.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Construction of a mass spectrometric system for isotope analysis of argon from micro-gram-size samples
微克级样品中氩同位素分析的质谱系统构建
- 批准号:
07504006 - 财政年份:1995
- 资助金额:
$ 17.56万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Study of the primordial noble gas components in achondrites, with special interest in U-Xe
研究无球粒陨石中的原始惰性气体成分,特别关注 U-Xe
- 批准号:
07454141 - 财政年份:1995
- 资助金额:
$ 17.56万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Studies on the Primordial Noble Gases and the Carrier Phases in Carbonaceous Chondrites Using the Laser Microprobe.
利用激光探针研究碳质球粒陨石中的原始惰性气体和载流相。
- 批准号:
01470036 - 财政年份:1989
- 资助金额:
$ 17.56万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
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