Mouse and human T cell Cas9-RNP/nucleofection-mediated gene-editing.

Area of Science:

• Immunology
• Molecular Biology
• Genetics

Background:

• CRISPR/Cas9 technology enables precise genome editing, significantly advancing biological research.
• Understanding T cell function is crucial for developing effective immunotherapies.
• Efficient genetic modification of primary T cells is essential for both research and therapeutic applications.

Purpose of the Study:

• To introduce a highly efficient gene editing protocol for primary CD8 T cells.
• To demonstrate the utility of this protocol in both human and murine CD8 T cells.
• To provide a practical method for rapid gene knockout in T cells.

Main Methods:

• Utilized transient nucleofection of ribonucleoprotein complexes.
• Employed synthesized modified single guide RNAs (sgRNAs) and purified Cas9 protein.
• Applied the protocol to unstimulated human CD8 T cells and unstimulated/stimulated murine CD8 T cells.

Main Results:

• Achieved highly efficient gene editing in primary CD8 T cells.
• Demonstrated successful gene knockout in both human and murine T cell models.
• Established a protocol adaptable to other primary cell types with optimized nucleofection.

Conclusions:

• The developed protocol offers a practical and powerful approach for precise and swift gene knockout in primary CD8 T cells.
• This method facilitates deeper investigation into T cell function and immunology.
• The protocol holds significant promise for the advancement of T cell-based immunotherapies, such as CAR T cells.