Method for preparing clinic-level CAR-T cell preparation by minicircle DNA transfection T cells
A cell preparation, -CAR-T technology, applied in the biological field, can solve problems such as no experimental confirmation
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[0085] The present invention is further illustrated below through specific examples, but not as a limitation of the present invention.
[0086] The technology for preparing clinical-grade PSCA-CAR-T cell preparations by transfecting T cells with microcircular DNA, the steps are as follows:
[0087] 1. Design and synthesis of PSCA-CAR gene sequence:
[0088] 1.1 Apply the biological software DNAstar8.0 to design the anti-PSCA Fab, VH and VL sequences, which are used to design the scFv sequence of CAR; design the signal peptide sequence IgGkappa to be placed in the front of the PSCA-scFv sequence; according to the CD8, CD28, CD137 and CD3ζ gene sequences are used to synthesize the framework structure of the third-generation CAR, and EcoR1 and BamH1 restriction sites are set at the front and rear ends of the CAR, respectively. According to the above design, the whole gene sequence of PSCA-CAR was synthesized (attached figure 1 ).
[0089] 1.2 Subcloning the PSCA-CAR gene seque...
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