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相关概念视频

Labeling DNA Probes03:31

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...

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相关实验视频

Updated: Jun 18, 2026

Brain Pericyte Calcium and Hemodynamic Imaging in Transgenic Mice In Vivo
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用于通过等离子体标记成像微循环的遗传工具.

Xiaowen Wang1, Marta Vittani1, Ashley Bomin Lee1

  • 1Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.

Anatomical science international
|June 27, 2025
PubMed
概括

使用腺相关病毒 (AAV) 的新遗传技术使大脑微循环的稳定,长期成像成为可能. 这些方法为研究小鼠模型中的大脑功能和疾病提供了显著的进步.

关键词:
在AAV中介的敲门中.腺相关病毒的病毒.专辑中的专辑蛋白.这就是CRISPR-Cas9的特征.光成像成像的使用方法光蛋白质是一种光蛋白质.

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科学领域:

  • 神经科学是一个神经科学.
  • 血管生物学 血管生物学
  • 分子成像分子成像技术

背景情况:

  • 大脑的微循环对于大脑的功能至关重要,提供营养和清除废物.
  • 大脑血流中断与神经退行性疾病,中风和认知衰退有关.
  • 目前的成像方法,如光德克斯,对于长期研究是有限的.

研究的目的:

  • 为稳定,长期的大脑微循环成像引入新型分子遗传技术.
  • 突出腺相关病毒 (AAV) 介导的方法对纵向研究的优势.

主要方法:

  • 使用复合腺相关病毒 (AAV) 进行血标签表达.
  • 采用基因组敲门策略来稳定标签的整合.
  • 单次全身注射用于小鼠模型中的简化注射.

主要成果:

  • 开发了AAV介导和基因组敲门方法,用于稳定的微循环成像.
  • 这些技术有助于在疾病模型中进行纵向成像.
  • 一次注射简化了实验程序.

结论:

  • 新的AAV介导遗传技术使得前所未有的大脑微循环的长期成像成为可能.
  • 这些方法是系统生物学和理解大脑血管动态的宝贵工具.
  • 未来的应用包括对神经疾病和认知障碍的详细研究.