首页> 外文会议>ASME summer bioengineering conference;SBC2009 >OSMOTIC STRESS AFFECTS NUCLEAR MORPHOLOGY AND GENOME ARCHITECTURE
【24h】

OSMOTIC STRESS AFFECTS NUCLEAR MORPHOLOGY AND GENOME ARCHITECTURE

机译:渗透胁迫影响核形态和基因组结构

获取原文

摘要

The spatial organization of the genome influences its function [1]. Therefore, physical signals that deform the nucleus and the genome within may directly affect gene transcription and translation. In articular chondrocytes, nuclear deformation in response to osmotic stress is not sensitive to actin organization [2]. However, articular chondrocytes differ from most mammalian cells in that they remain round with cortically organized actin in monolayer culture. Adherent cells such as adipose stem cells (ASCs) spread in monolayer culture, forming a more typical, highly bundled actin cytoskeleton. These actin bundles exert tensile stress on the nucleus so we hypothesized that the osmotic sensitivity of the cell nucleus would be modulated by actin organization in ASCs. The osmotic sensitivity of the nucleus was quantified by measuring changes in the size and shape of the nucleus and the spatial arrangement of the chromatin within using 3D confocal microscopy.
机译:基因组的空间组织影响其功能[1]。因此,使细胞核和基因组变形的物理信号可能会直接影响基因的转录和翻译。在关节软骨细胞中,响应渗透压的核变形对肌动蛋白组织不敏感[2]。但是,关节软骨细胞不同于大多数哺乳动物细胞,因为它们在单层培养中与皮质组织化的肌动蛋白保持圆形。诸如脂肪干细胞(ASC)的贴壁细胞在单层培养物中扩散,形成更典型的,高度捆绑的肌动蛋白细胞骨架。这些肌动蛋白束在细胞核上施加拉应力,因此我们假设细胞核的渗透敏感性将受到ASC中肌动蛋白组织的调节。通过使用3D共聚焦显微镜测量核的大小和形状的变化以及染色质的空间排列来量化核的渗透敏感性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号