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Pooled CRISPR-Based Genetic Screens in Mammalian Cells
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High-throughput, microscopy-based screening and quantification of genetic elements.

Rongrong Zhang1, Yajia Huang1, Mei Li1

  • 1CAS Key Laboratory of Quantitative Engineering Biology Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen China.

Mlife
|May 31, 2024
PubMed
Summary
This summary is machine-generated.

We developed a high-throughput microscopy platform for screening genetic elements. This system enables rapid identification of robust promoters for stable gene expression in synthetic biology applications.

Keywords:
characterization methodshigh‐throughputrobust genetic elementssynthetic biology

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Area of Science:

  • Synthetic biology
  • Microscopy
  • Genetic engineering

Background:

  • Synthetic biology requires efficient screening of genetic components for constructing gene circuits.
  • Microscopy offers high-resolution characterization of cellular phenotypes but lacks high-throughput strategies.
  • Current methods limit the scale of genetic element library screening.

Purpose of the Study:

  • To present a novel high-throughput microscopy platform for screening genetic elements.
  • To enable simultaneous preparation and analysis of 96 independent samples.
  • To accelerate the identification and characterization of functional genetic elements.

Main Methods:

  • Development of a microscopy platform for preparing 8x12-well agarose pad plates.
  • Screening of a library of intrinsic promoters from *Pseudomonas aeruginosa*.
  • Single-cell measurement of genetic elements over time for dynamic phenotype analysis.

Main Results:

  • Identification of a subset of robust promoters exhibiting stable gene expression across diverse growth conditions.
  • Demonstration of the platform's capability for high-throughput screening of 96 samples.
  • Enabled single-cell, time-resolved measurements for complex phenotype mapping.

Conclusions:

  • The developed platform significantly enhances the throughput of microscopy-based genetic element screening.
  • It facilitates the discovery of stable genetic components for synthetic biology.
  • The platform aids in understanding genotype-phenotype relationships and gene expression dynamics.