Article Title: Extracting Fluorescent Reporter Time Courses of Cell Lineages from High-throughput Microscopy at Low Temporal Resolution Extracting Fluorescent Reporter Time Courses of Cell Lineages from High-throughput Microscopy at Low Temporal Resolution
Article Title: Extracting Fluorescent Reporter Time Courses of Cell Lineages from High-throughput Microscopy at Low Temporal Resolution Extracting Fluorescent Reporter Time Courses of Cell Lineages from High-throughput Microscopy at Low Temporal Resolution
复制标题
文章标题:从低时间分辨率的高通量显微镜中提取细胞谱系的荧光报告基因时间过程从低时间分辨率的高通量显微镜中提取细胞谱系的荧光报告基因时间过程
DOI:
--
复制
发表时间:
--
期刊:
影响因子:
--
通讯作者:
T. Bretschneider
中科院分区:
文献类型:
--
作者:
Mike Downey;D. Jeziorska;S. Ott;T. Tamai;G. Koentges;Keith W. Vance;T. Bretschneider
This paper is made available online in accordance with publisher policies. Please scroll down to view the document itself. Please refer to the repository record for this item and our policy information available from the repository home page for further information. To see the final version of this paper please visit the publisher's website. Access to the published version may require a subscription. Abstract The extraction of fluorescence time course data is a major bottleneck in high-throughput live-cell microscopy. Here we present an extendible framework based on the open-source image analysis software ImageJ, which aims in particular at analyzing the expression of fluorescent reporters through cell divisions. The ability to track individual cell lineages is essential for the analysis of gene regulatory factors involved in the control of cell fate and identity decisions. In our approach, cell nuclei are identified using Hoechst, and a characteristic drop in Hoechst fluorescence helps to detect dividing cells. We first compare the efficiency and accuracy of different segmentation methods and then present a statistical scoring algorithm for cell tracking, which draws on the combination of various features, such as nuclear intensity, area or shape, and importantly, dynamic changes thereof. Principal component analysis is used to determine the most significant features, and a global parameter search is performed to determine the weighting of individual features. Our algorithm has been optimized to cope with large cell movements, and we were able to semi-automatically extract cell trajectories across three cell generations. Based on the MTrackJ plugin for ImageJ, we have developed tools to efficiently validate tracks and manually correct them by connecting broken trajectories and reassigning falsely connected cell positions. A gold standard consisting of two time-series with 15,000 validated positions will be released as a valuable resource for benchmarking. We demonstrate how our method can be applied to analyze fluorescence distributions generated from mouse stem cells transfected with reporter constructs containing transcriptional control elements of the Msx1 gene, a regulator of pluripotency, in mother and daughter cells. Furthermore, we show by tracking zebrafish PAC2 cells expressing FUCCI cell cycle markers, our framework can be easily adapted to different cell types and fluorescent markers. Copyright: ß 2011 Downey et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
影响因子:
1.8
作者:
Giuliano, KA;Cheung, WS;Taylor, DL
通讯作者:
Taylor, DL