Analysis of Signal Transduction Pathway of Syk in Breast Cancer Cells-as a comparison with that of Her2
乳腺癌细胞中Syk信号转导通路分析——与Her2的比较
基本信息
- 批准号:17590261
- 负责人:
- 金额:$ 1.98万
- 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:2005
- 资助国家:日本
- 起止时间:2005 至 2006
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Breast cancer is one of the most popular cancers in women. Protein-tyrosine kinases have been shown to be involved in the pathogenesis of breast cancer. Her2 is a protein-tyrosine kinase which is believed to have oncogenic function, whereas Syk is another protein-tyrosine kinase which displays oncostatic potential. We have attempted to compare these two kinases focusing on their expression and their down stream signaling system. We estimated the expression of these kinases using immunoblotting in human breast cancer cell lines. In some of these cell lines, one breast cancer cell line, MDAMB453 expressed Her2 but no Syk. When Syk is introduced in MDAMB453, the expression of Her2 declined according to the expression level of Syk. The growth rate of Syk-introduced MDAMB453 clones was decreased as compared to that of mock cells. In MDAMB453 clones, administration of adriamycin induced an increase in Syk expression, which was correlated with a degradation of polyADP-ribose polymerase, a substrate of caspases. These data imply a mechanism of the opposite functions of these kinases in breast cancer carcionogenesis, in which Syk enhances apoptosis upon an exposure to cancer therapeutics.
乳腺癌是女性最常见的癌症之一。蛋白酪氨酸激酶已被证明与乳腺癌的发病机制有关。HER2是一种蛋白酪氨酸激酶,被认为具有致癌功能,而Syk是另一种具有抑癌潜能的蛋白酪氨酸激酶。我们试图比较这两种蛋白的表达及其下游信号系统。我们使用免疫印迹技术估计了这些激酶在人类乳腺癌细胞系中的表达。在其中一些细胞系中,一种乳腺癌细胞系MDAMB453表达Her2,但不表达Syk。在MDAMB453中引入Syk后,Her2的表达随Syk表达水平的升高而下降。与模型细胞相比,Syk导入的MDAMB453克隆的生长速度明显降低。在MDAMB453克隆中,给予阿霉素诱导Syk表达增加,这与caspase底物多聚ADP核糖聚合酶的降解有关。这些数据暗示了这些激酶在乳腺癌发生中相反功能的机制,在这种机制中,Syk在接触癌症治疗药物时促进了细胞凋亡。
项目成果
期刊论文数量(14)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Identification of major Ca2+/calmodulin-dependent protein kinase phosphatase-binding proteins in brain:: biochemical analysis of the interaction
- DOI:10.1016/j.abb.2004.11.022
- 发表时间:2005-03-01
- 期刊:
- 影响因子:3.9
- 作者:Ishida, A;Tada, Y;Kameshita, I
- 通讯作者:Kameshita, I
Recent advances in technologies to analyze protein kinases.
蛋白激酶分析技术的最新进展。
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Ishida;A;Kameshita;I.;Sueyoshi;N.;Taniguchi;T.;Shigeri Y.
- 通讯作者:Shigeri Y.
Thromboxane A2 and prostaglandin F2alpha mediate inflammatory tachycardia.
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:82.9
- 作者:K. Takayama;Koh-ichi Yuhki;K. Ono;T. Fujino;A. Hara;Takehiro Yamada;Shuhko Kuriyama;H. Karibe
- 通讯作者:K. Takayama;Koh-ichi Yuhki;K. Ono;T. Fujino;A. Hara;Takehiro Yamada;Shuhko Kuriyama;H. Karibe
Characteristics of acid extrusion from Chinese hamster ovary cells expressed different prostaglandin EP receptors.
中国仓鼠卵巢细胞表达不同前列腺素EP受体的排酸特征。
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Okada;Y.;Taniguchi T;Morishima;S.;Suzuki;F.;Akagi;Y.;Muramatsu;I.
- 通讯作者:I.
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TANIGUCHI Takanobu其他文献
TANIGUCHI Takanobu的其他文献
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{{ truncateString('TANIGUCHI Takanobu', 18)}}的其他基金
Maintenance of intestinal barrier function by focal adhesion kinase
通过粘着斑激酶维持肠道屏障功能
- 批准号:
25460378 - 财政年份:2013
- 资助金额:
$ 1.98万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Role of endothelin in the physiological closure of Ductus Artenosus
内皮素在动脉导管生理闭合中的作用
- 批准号:
14570076 - 财政年份:2002
- 资助金额:
$ 1.98万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Effect of nicotine administration on development of muscarinic receptor in central nervous system of rat neonate
尼古丁给药对新生大鼠中枢神经系统毒蕈碱受体发育的影响
- 批准号:
11670084 - 财政年份:1999
- 资助金额:
$ 1.98万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Relaxation of IGF2 and KIP2 imprinting in Wilms tumours and other urogenital tumours
肾母细胞瘤和其他泌尿生殖肿瘤中 IGF2 和 KIP2 印记的松弛
- 批准号:
10670135 - 财政年份:1998
- 资助金额:
$ 1.98万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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