开发一种半自动化的亮场,高内容成像方法,用于量化斑马鱼胚胎中的形态效应
Greta Nilén1, Abir Ounoughi2, Stefan Scholz3
1Man-Technology-Environment (MTM) Research Centre - Biology, School of Science and Technology, Örebro University, Örebro, Sweden.
Toxicology mechanisms and methods
|February 3, 2026
概括
一个新的半自动成像管道量化了斑马鱼胚胎环境污染物的形态变化. 这种方法提高了发育性毒性评估的敏感性和可重复性.
科学领域:
- 发展性毒理学 发展性毒理学
- 生态毒理学 生态毒理学
- 形态测量 形态测量 形态测量
背景情况:
- 环境污染物可以导致生物体的发育异常.
- 目前对这些变化的评估方法往往是主观的,限制了准确性和一致性.
- 需要客观的定量方法来评估污染物引起的形态变化.
研究的目的:
- 开发和验证一个半自动化的亮场高含量成像 (HCI) 管道,用于定量评估斑马鱼胚胎的形态变化.
- 为了适应图像分析标准实验室显微镜没有自动胚胎定位.
- 评估管道在检测污染物诱导的发展影响的敏感性和可重复性.
主要方法:
- 使用FishInspector软件开发了一个半自动的亮场HCI管道.
- 适应用于缺乏自动胚胎定位的显微镜系统的图像分析.
- 将斑马鱼胚胎暴露在污染物混合物 (PFOS + PCB126;PFOS + B[a]P +酸盐) 中96小时.
- 定量分析的形态终点,如游泳膀缩小和身体长度缩短.
主要成果:
- 该管道成功量化了发育迟缓的形态表型,包括游泳膀缩小和身体长度缩短.
- 该方法在检测污染物混合物引起的微妙变化方面表现出灵敏度.
- 与主观评估相比,定量测量显示出更好的可重复性.
结论:
- 开发的半自动化HCI管道为评估斑马鱼胚胎污染物诱导的形态变化提供了一种敏感和可重复的方法.
- 这种方法提高了对研究进行标准化比较的能力,并扩大了发育危害评估的范围.
- 该管道是毒理学工具箱的宝贵补充,用于混合物毒性研究和了解对鱼群的影响.
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