High-content CRISPR screening

Area of Science:

• Genetics and Genomics
• Molecular Biology
• Biotechnology

Background:

• CRISPR screens enable unbiased interrogation of gene function across diverse species and applications.
• Pooled CRISPR screens introduce genetic perturbations into cell pools, which are then subjected to biological challenges.
• Effects are evaluated by sequencing guide RNAs, yielding ranked gene lists for sensitivity or resistance.

Purpose of the Study:

• To describe the fundamental and advanced concepts of CRISPR screening.
• To highlight CRISPR screening as a flexible and reliable method for biological discovery.
• To emphasize high-content methods for detailed biological insights within screens.

Main Methods:

• Pooled CRISPR screens with genetically encoded perturbations.
• Cell proliferation under biological challenges (e.g., drug treatment, infection).
• Sequencing-based counting of guide RNAs to assess perturbation effects.
• Adaptations for gene activation, silencing, and manipulation.
• High-content read-outs like single-cell RNA sequencing and spatial imaging.
• Bioinformatic analysis tools for reproducibility.

Main Results:

• CRISPR screens generate ranked gene lists indicating sensitivity or resistance to challenges.
• Adaptations allow for precise gene manipulation (activation, silencing).
• High-content read-outs provide unprecedented cellular detail.
• CRISPR screening has elucidated molecular mechanisms in numerous fields.

Conclusions:

• CRISPR screening is a versatile and powerful technology for biological discovery.
• Its applications span basic biology, medical genetics, cancer research, immunology, and infectious diseases.
• High-content CRISPR screening methods offer deep biological insights crucial for research and drug development.