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研究染色体结构和结构变化的Oligopaint FISH

Hadrien Reboul¹, Davide Normanno¹, Quentin Szabo²

¹Institut de Génétique Humaine, Univ Montpellier, CNRS, Montpellier, France.

Methods in molecular biology (Clifton, N.J.)

|August 30, 2025

概括

这项研究详细介绍了Oligopaint FISH的综合方案,用于分析染色体组织和结构变异. 该方法适用于各种细胞系,增强了多个尺度上的DNA结构的研究.

科学领域:

遗传学和分子生物学
细胞生物学
基因组学

背景情况:

三维DNA光现场杂交 (3D-FISH) 对于在各种尺度上理解染色体组织至关重要.
基于Oligo的技术已经显著提升了3D-FISH,使得像拓关联域 (TAD) 和染色质循环等结构的详细分析成为可能.
3D-FISH对于识别染色体结构变异至关重要,包括缺失,重复和转位,这些变异与癌症和染色体变等疾病有关.

研究的目的:

提供一个全面的Oligopaint FISH协议.
提供详细的指南,涵盖探针设计,生产,FISH程序,显微镜和数据分析.
为研究染色体组织和结构变异提供适用于多种细胞系的多功能方法.

主要方法:

油漆探针的设计和合成.
在各种细胞系上进行光现场杂交 (FISH).
高分辨率显微镜和图像分析用于3D DNA结构.

主要成果:

一个详细和优化的Oligopaint FISH协议.
该协议在不同类型的细胞中展示了多功能性.
在可视化大规模染色体区域,TAD,染色体循环和结构变异中的成功应用.

结论:

提出的Oligopaint FISH协议是高分辨率3D基因组结构分析的强大和多功能工具.
这种方法有助于研究不同生物环境中的染色体组织和结构变异.
该协议使研究人员能够研究复杂的基因组重组及其在各种细胞系中的影响.

关键词:

三维基因组组织染色体删除鱼类的DNA 油漆的使用美国

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Karyotyping

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FISH - Fluorescent In-situ Hybridization

FISH - Fluorescent In-situ Hybridization

Fluorescence in situ hybridization, or FISH, was developed in the early 1980s and has quickly become one of the most widely used techniques in cytogenetics. Labeled probes are used to bind complementary DNA or RNA sequences on a chromosome or in a region within a cell. Earlier, the probes could only be obtained by cloning or reverse transcription of a DNA template. Currently, the probe oligonucleotides can be synthesized synthetically. Additionally, with the advancement of optical techniques,...