Genetically Modifying CAR T Cells Using a CRISPR-Cas9 System
Published: May 31, 2024
Abstract
Source: Sterner, R. M. et al., Using CRISPR/Cas9 to Knock Out GM-CSF in CAR-T Cells. J. Vis. Exp. (2019)
The video outlines a process for creating genetically modified CAR T cells through the CRISPR-Cas9 System. Infecting T cells with CRISPR and CAR lentiviruses results in modifications to the target gene and the synthesis of a chimeric antigen receptor or CAR, ultimately leading to the formation of genetically modified CAR T cells.
Protocol
1. CART19 cell production T-cell isolation, stimulation, and ex-vivo culture Carry out all cell culture work in a cell culture hood utilizing appropriate personal protective equipment. Harvest peripheral blood mononuclear cells (PBMCs) from de-identified normal donor blood cones collected during apheresis as these are known to be a viable source of PBMCs. To isolate PBMCs, add 15 mL of a density gradient medium to a 50 mL density gradient separation tube. Dilute the don…
Disclosures
The authors have nothing to disclose.
Materials
| CD3 Monoclonal Antibody (OKT3), PE, eBioscience | Invitrogen | 12-0037-42 | |
| CD3 Monoclonal Antibody (UCHT1), APC, eBioscience | Invitrogen | 17-0038-42 | |
| Choice Taq Blue Mastermix | Denville Scientific | C775Y51 | |
| CTS (Cell Therapy Systems) Dynabeads CD3/CD28 | Gibco | 40203D | |
| CytoFLEX System B4-R2-V2 | Beckman Coulter | C10343 | Flow cytometer |
| Dimethyl sulfoxide | Millipore Sigma | D2650-100ML | |
| Dulbecco's Phosphate-Buffered Saline | Gibco | 14190-144 | |
| Dynabeads MPC-S (Magnetic Particle Concentrator) | Applied Biosystems | A13346 | |
| Easy 50 EasySep Magnet | STEMCELL Technologies | 18002 | |
| EasySep Human T Cell Isolation Kit | STEMCELL Technologies | 17951 | Negative selection magnetic beads; 17951RF includes tips and buffer |
| Fetal bovine serum | Millipore Sigma | F8067 | |
| FITC Mouse Anti-Human CD107a | BD Pharmingen | 555800 | |
| Fixation Medium (Medium A) | Invitrogen | GAS001S100 | |
| GenCRISPR gRNA Construct: Name: CSF2 | GenScript | N/A | Custom order |
| CRISPR guide RNA 1; Species: Human, Vector: | |||
| pLentiCRISPR v2; Resistance: Ampicillin; Copy number: | |||
| High; Plasmid preparation: Standard delivery: 4 μg (Free | |||
| of charge) | |||
| Goat anti-Mouse IgG (H+L) Cross-Adsorbed Secondary Antibody, Alexa Fluor 647 | Invitrogen | A-21235 | |
| https://tide.nki.nl. | Desktop Genetics | ||
| Human AB Serum; Male Donors; type AB; US | Corning | 35-060-CI | |
| IFN gamma Monoclonal Antibody (4S.B3), APC-eFluor 780, eBioscience | Invitrogen | 47-7319-42 | |
| Lipofectamine 3000 Transfection Reagent | Invitrogen | L3000075 | |
| LIVE/DEAD Fixable Aqua Dead Cell Stain Kit, for 405 nm excitation | Invitrogen | L34966 | |
| Lymphoprep | STEMCELL Technologies | 7851 | |
| Monensin Solution, 1000X | BioLegend | 420701 | |
| Mouse Anti-Human CD28 Clone CD28.2 | BD Pharmingen | 559770 | |
| Mouse Anti-Human CD49d Clone 9F10 | BD Pharmingen | 561892 | |
| Mouse Anti-Human MIP-1β PE-Cy7 | BD Pharmingen | 560687 | |
| Mr. Frosty Freezing Container | Thermo Scientific | 5100-0001 | |
| NALM6, clone G5 | ATCC | CRL-3273 | Acute lymphoblastic leukemia cell line |
| Nuclease Free Water | Promega | P119C | |
| Olympus Vacuum Filter Systems, 500 mL, PES Membrane, 0.22uM, sterile | Genesee Scientific | 25-227 | |
| Olympus Vacuum Filter Systems, 500 mL, PES Membrane, 0.45uM, sterile | Genesee Scientific | 25-228 | |
| Opti-MEM I Reduced-Serum Medium (1X), Liquid | Gibco | 31985-070 | |
| PE-CF594 Mouse Anti-Human IL-2 | BD Horizon | 562384 | |
| Penicillin-Streptomycin-Glutamine (100X), Liquid | Gibco | 10378-016 | |
| Permeabilization Medium (Medium B) | Invitrogen | GAS002S100 | |
| PureLink Genomic DNA Mini Kit | Invitrogen | K182001 | |
| Puromycin Dihydrochloride | MP Biomedicals, Inc. | 210055210 | |
| QIAquick Gel Extraction Kit | QIAGEN | 28704 | |
| Rat Anti-Human GM-CSF BV421 | BD Horizon | 562930 | |
| RoboSep-S | STEMCELL Technologies | 21000 | Fully Automated Cell Separator |
| SepMate-50 (IVD) | STEMCELL Technologies | 85450 | |
| Sodium Azide, 5% (w/v) | Ricca Chemical | 7144.8-16 | |
| X-VIVO 15 Serum-free Hematopoietic Cell Medium | Lonza | 04-418Q |
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Cite This Article
Genetically Modifying CAR T Cells Using a CRISPR-Cas9 System. J. Vis. Exp. (Pending Publication), e22240, doi: (2024).