首页> 外文会议>IEEE International Symposium on Biomedical Imaging >An image-based computational method for characterizing whole-cell scale spatiotemporal dynamics of intracellular transport
【24h】

An image-based computational method for characterizing whole-cell scale spatiotemporal dynamics of intracellular transport

机译:一种基于图像的计算方法,用于表征细胞尺度的细胞内运输时尚动力学

获取原文

摘要

Intracellular transport is the process of distributing and collecting materials, often packaged in different forms of cargoes, to fulfill changing structural and functional needs within the cell. Although the molecular machinery for intracellular transport has largely been identified, how this process is regulated globally in space and time remains unclear. In a step towards answering this question, we developed an image-based computational method for characterizing spatiotemporal dynamics of intracellular transport at the whole-cell scale to separate signals of moving and stationary cargoes. Specifically, we extended an algorithm that we developed previously for removing background fluorescence of static images. This separation allows us to extract from time-lapse images the global pattern of cargo movement without single particle tracking of individual cargoes. Based on this separation, we characterized the spatiotemporal dynamics of intracellular transport in terms of the spatial localization of stationary cargoes and the spatiotemporal patterns of cargo movement, respectively. We first tested and validated our methods using synthetic images. We then used our methods to analyze time-lapse images of Lamp1 transport and found different global patterns of transport behavior.
机译:细胞内运输是分配和收集材料的过程,通常以不同形式的货物包装,以满足在细胞内变化的结构和功能性需求。尽管在很大程度上已经鉴定了细胞内转运的分子机制,但是该过程在空间和时间内全局调节,仍然不清楚。在回答这个问题的步骤中,我们开发了一种基于图像的计算方法,用于表征整个细胞刻度的细胞内传输的时空动态,以分离移动和固定货物的信号。具体地,我们扩展了一种我们以前开发的算法,用于去除静态图像的背景荧光。这种分离使我们能够从延时图像中提取货物运动的全球模式,而没有单个粒子跟踪个别货物。基于这种分离,在静止货物的空间定位和货物运动的时空模式方面,其特征是细胞内运输的时空动态。我们首先使用合成图像测试并验证了我们的方法。然后,我们使用我们的方法来分析灯具运输的时间流逝图像,并发现不同的全局传输行为模式。

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