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Rapid and Gentle Single Cell Isolation for CRISPR Cloning & Cell Engineering

The precision gene editing enabled by the use of CRISPR (clustered regularly interspaced short palindromic repeats) technology has great potential for use in life science and biomedicine. Typically, a CRISPR cell engineering workflow involves the transfection of target cells with plasmid vectors containing both the CRISPR-Cas9 gene editing construct and a fluorescent reporter (this enables successfully transfected cells to be easily identified). The next step involves the isolation of edited cells for single cell cloning and clonal expansion. There are two techniques that have traditionally been used for single cell isolation, both of which have certain drawbacks.

  • Limiting dilution - the single cell isolation efficiency using this method is highly variable, which may result in multiple cells per well or empty wells. Add to this the possibility of low transfection or editing efficiency and the isolating of CRISPR clones by this method can become hugely inefficient, costly and almost unworkable.
  • Fluorescence-activated cell sorting (FACS) - this  method of cell isolation is faster than limiting dilutions resulting in higher throughput, however FACS sorting systems operate at high pressure (up to 70 psi), which can result in cell damage or death. Commonly used cell types for CRISPR cloning, such as induced pluripotent stem (iPS) cells, are particularly sensitive to the high pressure and have low survival rates when sorted by FACS. Another downside to using FACS is that it is not easy to use and is prone to contamination.

CRISPR Cell Engineering Workflow

workflow pala diagram

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Benefits of Using Pala in Your CRISPR Cell Engineering Workflow

pala chartRapid Single Cell Isolation

Bio-Techne's single cell sorters are the simplest and fastest way to identify and isolate target CRISPR-Cas9 gene-edited single cells for your cell engineering workflow. And it's all achieved seamlessly, in one step.

Highly Efficient Single Cell Dispensing

Cells are dispensed 1 cell/well at high efficiency into 96 or 384 well plates. The image [right] shows that Bio-Techne instruments are highly efficient and consistent at dispensing single cells (80-90% with mammalian cells) compared to manual pipetting (~30%).

Gentle Cell Sorting

Our single cell sorters can preserve the viability and integrity of cells for better clonal outgrowth. The low-pressure sorting by our instruments is gentle on your precious cells.

Featured Resources

CRISPR 12

Empower CRISPR Cell Engineering with Innovative Single Cell Sorting

Discover how scientists are using Bio-Techne's Single Cell Dispensers to empower single cell cloning to generate CRISPR-edited cell lines. Discover the key role that single cell sorting and isolation can play in your cell engineering workflow for a wide range of application from cell biology, to drug discovery and future cell therapy.

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Dr MaksWebinar: Producing High Quality CRISPR-Cas9 Edited hiPSCs

Learn from Dr Maks Prondzynski about optimizing the growth and differentiation of human induced pluripotent stem cells (hiPSCs) into cardiomyocytes to support enhancing cardiac disease modelling.

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