Analysis of aberrant signal tansduction in hematological malignancy and development of treatment methods.
血液恶性肿瘤中异常信号转导的分析和治疗方法的开发。
基本信息
- 批准号:16390276
- 负责人:
- 金额:$ 7.81万
- 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:2004
- 资助国家:日本
- 起止时间:2004 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In this study, we aimed to explore new target molecules and develop signal inhibitors which are specifically effective to hematological malignancies. This year we searched mutation focusing on JAK2 and JAK3. JAK2 V617F mutation was found in 7 of 7 acute leukemia patients who were transformed from MPD. Neither p53, N-RAS and FLT3 mutations were identified in these patients but additional chromosomal rearrangements were found, suggesting addition of chromosomal abnormalities to the JAK2 mutation were associated with the transformation. JAK3 mutations were found in 2 of AML (M7) patients at the position of pseudokinase and receptor binding domains. Accordingly JAK2 and JAK3 which are dominantly mutated in leukemia are new target molecules. In FLT3-signaling, STAT5 is phosphorylated in a mutant-dependent manner. We investigated why STAT5 is specifically phosphorylated in mutant FLT3 signaling. Mutant FLT3 recruited a Src-family kinase Lyn which phosphorylated STAT5 in vivo and in vitro. The level of STAT5 phosphorylation was correlated with the activity of FLT3 kinase-inhibitors. These data suggest that phosphor-STAT5 is a new surrogate marker in FLT3-targeted therapy.
本研究的目的是探索新的靶分子,开发对血液系统恶性肿瘤特异有效的信号抑制剂。今年,我们重点研究了JAK 2和JAK 3的突变。7例MPD转化的急性白血病患者中有7例存在JAK 2 V617 F突变。在这些患者中未发现p53、N-RAS和FLT 3突变,但发现了额外的染色体重排,表明JAK 2突变的染色体异常与转化相关。在2例AML(M7)患者中,在假激酶和受体结合结构域位置发现JAK 3突变。因此,在白血病中显性突变的JAK 2和JAK 3是新的靶分子。在FLT 3信号传导中,STAT 5以依赖于突变的方式磷酸化。我们研究了为什么STAT 5在突变型FLT 3信号转导中特异性磷酸化。突变体FLT 3募集Src家族激酶林恩,其在体内和体外磷酸化STAT 5。STAT 5磷酸化水平与FLT 3激酶抑制剂的活性相关。这些数据表明,磷酸化STAT 5是FLT 3靶向治疗中的新的替代标志物。
项目成果
期刊论文数量(28)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Genomewide array-based comparative genomic hybridization analysis of acute promyelocytic leukemia
- DOI:10.1002/gcc.20309
- 发表时间:2006-04-01
- 期刊:
- 影响因子:3.7
- 作者:Karnan, S;Tsuzuki, S;Naoe, T
- 通讯作者:Naoe, T
Clinical characteristics and prognostic implications of NPM1 mutations in acute myeloid leukemia
- DOI:10.1182/blood-2005-04-1733
- 发表时间:2005-10-15
- 期刊:
- 影响因子:20.3
- 作者:Suzuki, T;Kiyoi, H;Naoe, T
- 通讯作者:Naoe, T
PTPN11, RAS and FLT3 mutations in childhood acute lymphoblastic leukemia
- DOI:10.1016/j.leukres.2006.02.004
- 发表时间:2006-09-01
- 期刊:
- 影响因子:2.7
- 作者:Yamamoto, Tomoko;Isomura, Mariko;Kojma, Seiji
- 通讯作者:Kojma, Seiji
FLT3 mutations in acute myeloid leukemia.
急性髓系白血病中的 FLT3 突变。
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Vachkov;IH;Huang;X;Yamada;Y;Tonchev;AB;Yamashima;T;Kato;S;Takakura;N;Tomoko Yamaoto;Huang X;Hitoshi Kiyoi
- 通讯作者:Hitoshi Kiyoi
Lyn is an important component of the signal transduction pathway specific to FLT3/ITD and can be a therapeutic target in the treatment of AML with FLT3/ITD
- DOI:10.1038/sj.leu.2404547
- 发表时间:2007-03-01
- 期刊:
- 影响因子:11.4
- 作者:Okamoto, M.;Hayakawa, F.;Naoe, T.
- 通讯作者:Naoe, T.
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NAOE Tomoki其他文献
NAOE Tomoki的其他文献
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{{ truncateString('NAOE Tomoki', 18)}}的其他基金
Translational research toward drug discovery of leukemia
白血病药物发现的转化研究
- 批准号:
25293218 - 财政年份:2013
- 资助金额:
$ 7.81万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of innovative anti-tumor agents that target signal transducers and activator of transcription
开发针对信号转导子和转录激活子的创新抗肿瘤药物
- 批准号:
23659487 - 财政年份:2011
- 资助金额:
$ 7.81万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Basic research aimed at understanding and overcoming of the primary and secondary resistance in molecular target therapy
旨在了解和克服分子靶向治疗中原发性和继发性耐药的基础研究
- 批准号:
22390192 - 财政年份:2010
- 资助金额:
$ 7.81万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Molecular mechanisms and therapeutic approach of residual leukemia
残留白血病的分子机制及治疗途径
- 批准号:
19390261 - 财政年份:2007
- 资助金额:
$ 7.81万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Research & Development of molecular target therapy for leukemia and Its assessment System
研究
- 批准号:
17016029 - 财政年份:2005
- 资助金额:
$ 7.81万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
Establishment of a leukemia model mouse by introducing mutated FLT3 gene
引入FLT3突变基因建立白血病模型小鼠
- 批准号:
13671058 - 财政年份:2001
- 资助金额:
$ 7.81万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Involvement of Fas ligand-independent caspase8 activation in AsィイD22ィエD2OィイD23ィエD2-induced apoptosis
Fas 配体独立的 caspase8 激活参与 AsiD22D2OD23D2 诱导的细胞凋亡
- 批准号:
10670940 - 财政年份:1998
- 资助金额:
$ 7.81万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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CAREER: Modulating cell signaling and migration by targeted small-molecule binding to a key regulator of protein degradation
职业:通过与蛋白质降解的关键调节因子结合的靶向小分子来调节细胞信号传导和迁移
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