Emerging oligo-based imaging methods to study chromatin organization in cells and tissue

Area of Science:

• Cell Biology
• Genomics
• Biophysics

Background:

• Progress in sequencing and imaging has revolutionized understanding of chromatin organization.
• Imaging methods provide single-cell resolution for visualizing subnuclear structures.
• Multimodal experiments combining DNA/RNA FISH with immunofluorescence are powerful for joint visualization.

Purpose of the Study:

• To review recent imaging developments in 3D genome organization.
• To focus on oligonucleotide-based DNA FISH and its applications.
• To provide an overview of oligo-based FISH methods for researchers.

Main Methods:

• Oligonucleotide-based DNA fluorescence in situ hybridization (FISH).
• Multimodal imaging combining FISH with immunofluorescence staining.
• Review of emerging applications like chromatin tracing and live-cell imaging.

Main Results:

• Recent imaging developments enhance the study of 3D genome organization.
• Oligonucleotide-based DNA FISH is a key technique for visualizing genomic loci.
• Emerging applications include chromatin tracing, live-cell imaging, and lineage reconstruction.

Conclusions:

• Imaging techniques, especially oligo-based DNA FISH, are crucial for understanding chromatin organization.
• These methods are vital for research in development and disease.
• The review serves as a guide to navigating oligo-based FISH methods.