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Robust 3D DNA FISH Using Directly Labeled Probes
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Visualizing Genome Reorganization Using 3D DNA FISH.

Alasdair Jubb1,2, Shelagh Boyle3

  • 1Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, UK. awj23@cam.ac.uk.

Methods in Molecular Biology (Clifton, N.J.)
|May 13, 2020
PubMed
Summary
This summary is machine-generated.

3D DNA FISH uses fluorescent probes to map specific genome locations in cell nuclei. This technique reveals how DNA organization changes, aiding gene regulation studies in cells and tissues.

Keywords:
ChromatinDNAFISHGene regulationGeneticsNuclear organization

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Area of Science:

  • Genomics
  • Cell Biology
  • Molecular Biology

Background:

  • Genome organization within the cell nucleus is crucial for gene regulation.
  • 3D DNA fluorescence in situ hybridization (3D DNA FISH) is a key technique for studying genome architecture.

Purpose of the Study:

  • To describe protocols for consistent 3D DNA FISH data acquisition.
  • To enable the interrogation of genomic loci organization changes in response to stimuli.

Main Methods:

  • Hybridizing labeled probes to specific genomic loci.
  • Imaging nuclei using fluorescence microscopy to collect 3D z-stacks.
  • Analyzing the 3D positions of hybridized probes in reconstructed images.

Main Results:

  • Consistent data generation in cultured cells.
  • Successful application in paraffin-embedded tissue sections.
  • Provides a powerful tool for interrogating dynamic changes in genome organization.

Conclusions:

  • 3D DNA FISH is a robust method for studying genome organization and its relation to gene regulation.
  • The described protocols facilitate reliable analysis in diverse biological samples.
  • This technique offers insights into how DNA structure impacts cellular functions.