Functional analyses of novel tumor suppressor genes by gene targeting
通过基因打靶对新型抑癌基因进行功能分析
基本信息
- 批准号:15590335
- 负责人:
- 金额:$ 2.3万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2003
- 资助国家:日本
- 起止时间:2003 至 2004
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The drs gene was originally isolated as a suppressor against v-src transformation.Drs protein has one transmembrane domain and three consensus repeat called Sushi motif. Expression of drs mRNA was markedly downregulated in a variety of human cancer cell lines and tissues, suggesting that the drs gene acts as a tumor suppressor. In this study, we investigated the function of Drs and the mechanism of tumor suppression by this gene and obtained the following results.(1)Drs induces apoptosis by a novel pathway mediated by ASY/Nogo-B/RTN-xS, caspase-12, caspase-9 and caspase-3 in human cancer cells.(2)We investigated the tumor suppressor function in vivo of drs and its physiological roles in apoptosis by generating a gene-knockout mouse. Malignant tumors including lymphomas, lung adenocarcinomas, hepatomas, and sarcoma were generated in about 25% of 46 drs-knockout(KO)mice. No tumors were detected in all (23) wild-type mice examined at the same age.(3)Re-introduction of drs by retrovirus vector into a lung cancer cell line derived from a lung adenocarcinoma of a drs KO mouse caused suppression of tumorigenicity in nude mouse and elevation of apoptosis mediated by activation of caspase-3.(4)Drs KO MEF cells showed resistance to certain apoptosis-inducing reagent such as rapamycine and dexamethazone.(5)Apoptosis was induced in glucose-depleted Drs KO MEF cells, suggesting the closstalk between Drs-induced apoptosis pathway and mTOR signal pathway.These results idicate that the drs gene acts as a tumor suppressor in genesis of malignant tumors and that drs play a role in certain apoptotic pathways in physiological conditions.
DRS基因最初是作为一种抑制v-src转化的基因被分离出来的。DRS蛋白有一个跨膜结构域和三个共识重复序列,称为Sushi基序。在多种人类肿瘤细胞系和组织中,DRS基因的表达明显下调,提示DRS基因是一种肿瘤抑制基因。本研究对DRS的功能及其抑制肿瘤的机制进行了研究,获得了以下结果:(1)DRS通过ASY/Nogo-B/RTN-Xs、caspase-12、caspase-9和caspase-3介导的新途径诱导人癌细胞凋亡。(2)通过建立基因敲除小鼠,研究DRS的体内抑瘤作用及其在细胞凋亡中的生理作用。在46只DRS基因敲除(KO)小鼠中,约25%发生了包括淋巴瘤、肺腺癌、肝癌和肉瘤在内的恶性肿瘤。(3)通过逆转录病毒载体将DRS重新导入DRS KO小鼠肺腺癌来源的肺癌细胞系,可抑制裸鼠的成瘤性,并通过激活caspase-3促进细胞凋亡。(4)DRS KO MEF细胞对某些凋亡诱导剂如雷帕霉素和地塞米松表现出耐药性。(5)葡萄糖耗竭的DRS KO MEF细胞可诱导凋亡。提示DRS诱导的细胞凋亡通路与mTOR信号通路密切相关。这些结果表明,DRS基因在恶性肿瘤的发生中发挥了肿瘤抑制作用,并在某些生理条件下的细胞凋亡通路中发挥作用。
项目成果
期刊论文数量(41)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Haraguchi, S. et al.: "Specific gene silencing in the pre-implantation stage mouse embryo by an si RNA expression vector system"Mol. Reprod. Dev.. in press.
Haraguchi, S. 等人:“通过 si RNA 表达载体系统在植入前阶段小鼠胚胎中进行特异性基因沉默”Mol。
- DOI:
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- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Conserved role of nanos proteins in germ cell development
- DOI:10.1126/science.1085222
- 发表时间:2003-08-29
- 期刊:
- 影响因子:56.9
- 作者:Tsuda, M;Sasaoka, Y;Saga, Y
- 通讯作者:Saga, Y
Haraguchi, S. et al.: "nanos1 : a mouse nanos gene expressed in the central nervous system is dispensable for normal development"Mech. Dev.. 120. 721-731 (2003)
Haraguchi, S. 等人:“nanos1:在中枢神经系统中表达的小鼠 nanos 基因对于正常发育是必不可少的”Mech。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Loss of c-abl facilitates anchorage-independent growth of p53- and RB-deficient primary mouse embryonic fibroblasts
c-abl 的缺失促进 p53 和 RB 缺陷的原代小鼠胚胎成纤维细胞的贴壁独立生长
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:Suzuki;J.et al.
- 通讯作者:J.et al.
A novel apoptotic pathway induced by the drs tumor suppressor gene
- DOI:10.1038/sj.onc.1207419
- 发表时间:2004-04
- 期刊:
- 影响因子:8
- 作者:Y. Tambe;T. Isono;S. Haraguchi;Atsuko Yoshioka-Yamashita;M. Yutsudo;H. Inoue
- 通讯作者:Y. Tambe;T. Isono;S. Haraguchi;Atsuko Yoshioka-Yamashita;M. Yutsudo;H. Inoue
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INOUE Hirokazu其他文献
INOUE Hirokazu的其他文献
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{{ truncateString('INOUE Hirokazu', 18)}}的其他基金
Studies of novel mechanism of colorectal carcinogenesis by cyclin D1b-transgenic mouse
细胞周期蛋白D1b转基因小鼠结直肠癌发生新机制的研究
- 批准号:
24590480 - 财政年份:2012
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Regulation of cell survival and malignant tumor formation by Drs/GADD34
Drs/GADD34 对细胞存活和恶性肿瘤形成的调节
- 批准号:
21590437 - 财政年份:2009
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Mechanism of mtDNA deletion in short lived mutant of Neurospora.
脉孢菌短命突变体线粒体DNA缺失的机制。
- 批准号:
20570001 - 财政年份:2008
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Regulation of apoptosis and autophagy under stress conditions and cancer progression
应激条件下细胞凋亡和自噬的调节和癌症进展
- 批准号:
19590388 - 财政年份:2007
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Host for highly efficient gene targeting in filamentous fungi
丝状真菌中高效基因靶向的宿主
- 批准号:
18370001 - 财政年份:2006
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Studies on the mechanism of Drs-mediated apoptosis and tumor suppression by gene-knockout mouse
基因敲除小鼠Drs介导的细胞凋亡及抑癌机制研究
- 批准号:
17590341 - 财政年份:2005
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Studies on molecular mechanism of tumor suppression by the drs gene
drs基因抑制肿瘤的分子机制研究
- 批准号:
13670211 - 财政年份:2001
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Characterization of the mus-10 and recQ genes involving in DNA repair, recombination, and senescence
参与 DNA 修复、重组和衰老的 mus-10 和 recQ 基因的表征
- 批准号:
11640619 - 财政年份:1999
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Isolation and functional analysis of the genes involved in suppression of transformation in primary cells
原代细胞转化抑制相关基因的分离和功能分析
- 批准号:
10670205 - 财政年份:1998
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Studies on suppression of transformation in primary rat embryo fibroblasts
抑制原代大鼠胚胎成纤维细胞转化的研究
- 批准号:
07670244 - 财政年份:1995
- 资助金额:
$ 2.3万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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