Regulatory mechanism of T cell development by pre-T cell specific transcription factors
Regulatory mechanism of T cell development by pre-T cell specific transcription factors
批准号:
13470068
负责人:
SAITO Takashi
金额:
$9.22万
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:
2001
资助国家:
日本
项目状态:
已结题
起止时间:
2001 至 2002
中文摘要
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英文摘要
Signal regulation through the pre-TCR complex was analyzed n approaches ; one is to analyze a new molecule RIT which was cloned last year, two and the other is the analysis of pre-TCR signaling through lipid raft by preparing raft-residential chimeric molecule.(1) RIT was cloned by DNA subtraction from pTα-expressing cells and is expressed only on CD25^+ immature thymocytes. RIT-KO mice were generated. By crossing with HY-specific TCR-Tg mice, RIT was found to modulate thymic selection.(2) To prepare raft-residential protein, we made LAT-CD3εchimeric molecule. This molecule is indeed localized exclusively in lipid raft. By crossing with Rag-KO mice, the expression of LAT-CD3εaugumented development of DP thymocytes.
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Tomita, K.: "Cytokine-independent, Jak3 activation upon TCR stimulation through direct association of Jak3 and the TCR complex"J. Biol. Chem.. 276・27. 25378-25385 (2001)
Tomita, K.:“通过 Jak3 和 TCR 复合物的直接关联,TCR 刺激下的细胞因子依赖性 Jak3 激活”J. Biol. 276・27 (2001)。
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Yokosuka, T.: "Predominant role of T cell receptor α chain in forming preimmune TCR repertoire revealed by clonal TCR reconstitution system"J.Exp.Med.. 195・8. 991-1001 (2002)
Yokosuka, T.:“克隆 TCR 重建系统揭示 T 细胞受体 α 链在形成免疫前 TCR 库中的主要作用”J.Exp.Med.. 195・8 (2002)。
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Murata, Y: "The conversion of redox status of peritoneal macrophages during pathological progression of spontaneous inflammatory bowl disease in Janus family tyrosine kinase 3-/-and IL-2Rγ-/-mice"Int.Immunol.. 14・6. 627-636 (2002)
Murata, Y:“Janus 家族酪氨酸激酶 3-/- 和 IL-2Rγ-/- 小鼠自发性炎症碗病病理进展过程中腹膜巨噬细胞氧化还原状态的转换”Int.Immunol.. 14・6-。 636(2002)
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Yamasaki, S.: "Gads/Grb2-mediated association with LAT is critical for the inhibitory function of Gab2 in T cells"Moll.Cell.Biol. (in press).
Yamasaki, S.:“Gads/Grb2 介导的 LAT 关联对于 T 细胞中 Gab2 的抑制功能至关重要”Moll.Cell.Biol。
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Yamasaki, S: "Docking protein Gab2 is phosphorylated by ZAP-70 and negatively regulates T cell recepor signaling by recruitment of inhibitory molecules"J. Biol Chem.. 276(48). 45175-5183 (2001)
Yamasaki, S:“对接蛋白 Gab2 被 ZAP-70 磷酸化,并通过招募抑制分子来负调节 T 细胞受体信号传导”J.
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