Control of integrin genes expression in the eye

Control of integrin genes expression in the eye
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控制眼睛中整合素基因的表达

DOI:
10.1016/j.preteyeres.2006.10.004
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发表时间:
2007
影响因子:
17.8
通讯作者:
S. Guérin
S. Guérin
中科院分区:
医学1区
文献类型:
--
作者:
Francois Vigneault;Karine Zaniolo;M. Gaudreault;M. Gingras;S. Guérin

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人类基因组测序的竞争即将结束,这给科学家们带来了新的挑战。事实上,现在几乎每个人类基因都已经测序并精确定位在人类染色体上,下一个最紧迫的任务之一就是了解这些基因是如何在任何给定的细胞中转录的。编码基因的整合素也不例外。整合素将细胞与细胞外基质(ECM)中的许多成分(如层粘连蛋白(LM)和胶原蛋白)连接起来,从而传递细胞内信号,从而改变细胞的许多特性,如黏附、迁移、增殖和生存。在过去的几年里,随着对属于这个家族的许多蛋白质的更清晰的了解,人们致力于鉴定调节它们表达的调控序列。本文综述了细胞为了确保每一个整合素基因的转录而使用的调控元件及其结合的转录因子的组织结构的知识现状。对那些据报道在眼睛中表达的基因给予了特别的关注。它还探索了细胞外基质的成分如何参与整合素基因表达的控制,并建立了与角膜上皮伤口愈合的联系,这一过程暂时改变了上皮细胞所在的基底膜的组成。
The ending race for sequencing the human genome has left the scientists faced with new challenges. Indeed, now that almost every human gene has been sequenced and precisely positioned on the human chromosomes, one of the next, most burning task consist in understanding how transcription of these genes is ensured in any given cell. The integrins encoding genes are no exception. Integrins bridge the cell to the many components from the extracellular matrix (ECM), such as laminins (LM) and collagens, and thereby transduce intracellular signals that will alter many of the cell's properties such as adhesion, migration, proliferation and survival. As a much clearer picture of the many proteins that belong to this family has emerged over the last few years, tremendous efforts have been dedicated to the identification of the regulatory sequences that modulate their expression. This review provides an overview of the current state of knowledge about the organization of the regulatory elements and the transcription factors (TF) they bind that are used by the cell in order to ensure transcription of each of the integrins gene. A particular attention has been given to those reported to be expressed in the eye. It also explores how components from the ECM might participate in the control of integrins gene expression and establishes links to wound healing of the corneal epithelium, a process that transiently alter the composition of the basement membrane on which the epithelial cells lie.
早期类风湿性关节炎滑膜的组织学外观。
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