A molecular mechanism that regulates extracellular matrix degradation and cell polarity in migrating cells.
调节迁移细胞中细胞外基质降解和细胞极性的分子机制。
基本信息
- 批准号:23590356
- 负责人:
- 金额:$ 3.41万
- 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:2011
- 资助国家:日本
- 起止时间:2011-04-28 至 2014-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We have shown that membrane-type 1 matrix metalloproteinase (MT1-MMP) regulate fibronectin (FN) assembly by cleaving it, which results in promotion of cell motility and proliferation. FN matrix assembly requires the increased cytoskeletal tension generated by cadherin adhesions. In a co-culture of Rat1 fibroblasts and MT1-MMP-silenced but not control HT1080 cells, FN fibrils extended from Rat1 to cell-matrix adhesions in HT1080 cells, and N-cadherin adhesions were formed between these cells. MT1-MMP knockdown promoted FN matrix assembly and N-cadherin adhesions in HT1080 cells, which was abrogated by double knockdown with either integrin beta1 or FN. Conversely, inhibition of N-cadherin adhesions suppressed FN matrix formation in MT1-MMP-silenced cells. These data demonstrate that FN assembly initiated by MT1-MMP knockdown results in increased N-cadherin adhesions, which are prerequisite for further FN matrix formation.
我们已经证明,膜 1 型基质金属蛋白酶 (MT1-MMP) 通过裂解纤连蛋白 (FN) 来调节其组装,从而促进细胞运动和增殖。 FN 基质组装需要钙粘蛋白粘附产生的细胞骨架张力增加。在 Rat1 成纤维细胞和 MT1-MMP 沉默但非对照 HT1080 细胞的共培养中,FN 原纤维从 Rat1 延伸到 HT1080 细胞中的细胞-基质粘附,并且在这些细胞之间形成 N-钙粘蛋白粘附。 MT1-MMP 敲低促进了 HT1080 细胞中 FN 基质组装和 N-钙粘蛋白粘附,而整合素 beta1 或 FN 双重敲低可消除这种现象。相反,抑制 N-钙粘蛋白粘附会抑制 MT1-MMP 沉默细胞中 FN 基质的形成。这些数据表明,MT1-MMP 敲低引发的 FN 组装导致 N-钙粘蛋白粘附增加,这是进一步形成 FN 基质的先决条件。
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)
MT1-MMP regulates fibronectin assembly
MT1-MMP 调节纤连蛋白组装
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:滝野隆久;堂本貴寛;佐藤博
- 通讯作者:佐藤博
MT1-MMPはHAI-1を切断することでMatriptaseを活性化する
MT1-MMP 通过裂解 HAI-1 激活 Matriptase
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:堂本貴寛;滝野隆久;佐藤博
- 通讯作者:佐藤博
Shedding of kidney injury molecule-1 by membrane-type 1 matrix metalloproteinase
- DOI:10.1093/jb/mvs082
- 发表时间:2012-11-01
- 期刊:
- 影响因子:2.7
- 作者:Guo, Luyang;Takino, Takahisa;Sato, Hiroshi
- 通讯作者:Sato, Hiroshi
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TAKINO Takahisa其他文献
TAKINO Takahisa的其他文献
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{{ truncateString('TAKINO Takahisa', 18)}}的其他基金
Cell migration induced by alternation of extracellular matrix microenvironment
细胞外基质微环境改变诱导细胞迁移
- 批准号:
20590306 - 财政年份:2008
- 资助金额:
$ 3.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Analysis of a molecular mechanism by which JNK-binding proteins regulate turnover of focal adhesions and formAnalysis of a molecular mechanism by which JNK-binding proteins regulate turnover of focal adhesions and formation of cell polarity
JNK结合蛋白调节粘着斑周转和形成的分子机制分析JNK结合蛋白调节粘着斑周转和细胞极性形成的分子机制分析
- 批准号:
18590287 - 财政年份:2006
- 资助金额:
$ 3.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Analysis of regulatory mechanism for cell polarity formation by JNK binding molecules during migration
JNK结合分子迁移过程中细胞极性形成的调控机制分析
- 批准号:
16590241 - 财政年份:2004
- 资助金额:
$ 3.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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