HTLV-1 hijacks T-cell differentiation/function by deregulatingHelios gene expression
HTLV-1通过解除Helios基因表达调控来劫持T细胞分化/功能
基本信息
- 批准号:23659484
- 负责人:
- 金额:$ 2.33万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Challenging Exploratory Research
- 财政年份:2011
- 资助国家:日本
- 起止时间:2011 至 2012
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Adult T-cell leukemia is a T-cell neoplasm caused by HTLV-1 infection. In the present study, we found drastic deregulation of Helios expression in ATL cells. Helios is an Ikaros-family transcription factor and a pivotal regulator of T-cell differentiation and activation. Detailed investigations in transcript variants of Helios in PBMCs from ATL patients clarified that the majority of ATL patients demonstrated abnormal splicing patterns of Helios mRNAs, while four cases did not express Helios mRNA at the detectable level. We identified ATL-specific short Helios transcripts and further confirmed that resultant isoforms not only functioned dominant-negatively, but also reduced apoptotic sensitivity and increased proliferation of the cells, probably through activation of S1P pathway, which is deeplyimplicated to cell-motility and proliferation.
成人T细胞白血病是由HTLV-1感染引起的T细胞肿瘤。在本研究中,我们发现 ATL 细胞中 Helios 表达的急剧失调。 Helios 是 Ikaros 家族转录因子,也是 T 细胞分化和激活的关键调节因子。对 ATL 患者 PBMC 中 Helios 转录变异体的详细研究表明,大多数 ATL 患者表现出 Helios mRNA 的异常剪接模式,而 4 例患者未达到可检测水平的 Helios mRNA 表达。我们鉴定了 ATL 特异性短 Helios 转录本,并进一步证实所得亚型不仅显性失活,而且可能通过激活 S1P 途径(与细胞运动和增殖密切相关)降低细胞凋亡敏感性并增加细胞增殖。
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)
Novel Helios variants found in ATL cells hamper functions of Ikaros family proteins and induce T cell proliferation
ATL 细胞中发现的新 Helios 变体阻碍 Ikaros 家族蛋白的功能并诱导 T 细胞增殖
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Asanuma S;Kawanami K;Yamagishi M;Nakano K;Yamaguchi K;Utsunomiya A;Watanabe T
- 通讯作者:Watanabe T
新規ATL型HeliosはIkaros転写因子ファミリーの機能を阻害し、T細胞の増殖を促進する
新型ATL型Helios抑制Ikaros转录因子家族功能并促进T细胞增殖
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:Mizusawa K;Kobayashi Y;Yamanome T;Saito Y;Takahashi A.;小林勇喜;浅沼里実
- 通讯作者:浅沼里実
Over-expression of dominant-negative Helios isoforms in adult T-cell leukemia (A TL) cells
成人 T 细胞白血病 (A TL) 细胞中显性失活 Helios 亚型的过度表达
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:Asanuma S;Nakano K;Yamagishi M;Ogawa S;Yamaguchi K;Utsunomiya A;Watanabe T
- 通讯作者:Watanabe T
特集 : 血液疾患におけるエピゲノム異常と治療「ATL発症におけるエピゲノム解析の進歩(The State of the Art in Epigenomics of Adult T Cell Leukemia)」
专题:血液疾病的表观基因组异常和治疗“成人 T 细胞白血病表观基因组学的最新进展”
- DOI:
- 发表时间:2013
- 期刊:
- 影响因子:0
- 作者:山岸誠;渡邉俊樹
- 通讯作者:渡邉俊樹
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WATANABE Toshiki其他文献
WATANABE Toshiki的其他文献
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{{ truncateString('WATANABE Toshiki', 18)}}的其他基金
Oncogene addiction of ATL cells and abnormal Polycomb-miRNA-signal transduction
ATL细胞的癌基因成瘾和异常的Polycomb-miRNA信号转导
- 批准号:
23390250 - 财政年份:2011
- 资助金额:
$ 2.33万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Pursuit of a new system for a high throughput screening of drugs to develop a new strategy of prevention and treatment of ATL
追求高通量药物筛选新系统,制定ATL防治新策略
- 批准号:
20390267 - 财政年份:2008
- 资助金额:
$ 2.33万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Abnormalities in TCR signal transduction in T cell non-Hodgkin's lymphoma as a basis for a new classification system.
T 细胞非霍奇金淋巴瘤中 TCR 信号转导异常作为新分类系统的基础。
- 批准号:
18390111 - 财政年份:2006
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$ 2.33万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Identification of zooxanthellate genes that are involved in symbiosis with a reef coral, and analyses of their function and expression
鉴定与珊瑚礁共生相关的虫黄藻基因,并分析其功能和表达
- 批准号:
16510157 - 财政年份:2004
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$ 2.33万 - 项目类别:
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Exploration of sub-seafloor methanehydrate using artificial current source ocean-bottom electromagnetic method and its reservoir estimation
人工电流源海底电磁法勘探海底甲烷水合物及其储层估算
- 批准号:
16360449 - 财政年份:2004
- 资助金额:
$ 2.33万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Studies on abnormalities of membrane receptor signaling in malignant lymphoma cells as a basis of diagnosis and treatment
恶性淋巴瘤细胞膜受体信号异常作为诊断和治疗依据的研究
- 批准号:
16390103 - 财政年份:2004
- 资助金额:
$ 2.33万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Molecular analysis of aberrant signal transduction of membrane receptors as a basis for diagnosis and treatment of malignant lymphomas
膜受体异常信号转导的分子分析作为恶性淋巴瘤诊断和治疗的基础
- 批准号:
14370067 - 财政年份:2002
- 资助金额:
$ 2.33万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Molecular studies on the formation of calcified hard tissues in marine crustaceans
海洋甲壳动物钙化硬组织形成的分子研究
- 批准号:
08833004 - 财政年份:1996
- 资助金额:
$ 2.33万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Characterization of genes involved in the multistep leukemogenesis of ATL
参与 ATL 多步白血病发生的基因的表征
- 批准号:
08457273 - 财政年份:1996
- 资助金额:
$ 2.33万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Studies for developing a laboratory diagnostic system for cancers by means of PCR that is applicale to clinical samples such as urine and stool
研究开发适用于尿液和粪便等临床样本的 PCR 癌症实验室诊断系统
- 批准号:
05557059 - 财政年份:1993
- 资助金额:
$ 2.33万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
相似国自然基金
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