The wild-type, Ku80–/–, Lig4–/–, Parp1–/– and AID–/– CH12F3 cells were cultured in RPIM1640 medium (Corning) with 15% Fetal Bovine Serum (FBS, ExCell Bio), HEPES (Corning), penicillin–streptomycin (Corning),
4d nucleofector x
The 4D-Nucleofector X is a laboratory instrument designed for the efficient transfection of cells. It uses a proprietary Nucleofection technology to deliver nucleic acids, such as DNA or RNA, into a wide range of cell types. The core function of the 4D-Nucleofector X is to facilitate the introduction of genetic material into cells, enabling researchers to study gene function, perform gene editing, or express recombinant proteins.
Lab products found in correlation
14 protocols using 4d nucleofector x
CRISPR-Cas9 Knockout of DNA Repair Genes in mESCs and CH12F3 Cells
The wild-type, Ku80–/–, Lig4–/–, Parp1–/– and AID–/– CH12F3 cells were cultured in RPIM1640 medium (Corning) with 15% Fetal Bovine Serum (FBS, ExCell Bio), HEPES (Corning), penicillin–streptomycin (Corning),
Optimized CRISPR-mediated genome editing in mESCs and CH12F3 cells
The wild-type, Ku80 -/-, Lig4 -/-, Parp1 -/-, and AID -/-CH12F3 cells were cultured in RPIM1640 medium (Corning) with 15% Fetal Bovine Serum (FBS, ExCell Bio), HEPES (Corning), Penicillin-Streptomycin (Corning), L-Glutamine (Corning), Nonessential Amino Acids (Corning), Sodium Pyruvate (Corning) and β-Mercaptoethanol (Sigma-Aldrich) at 37°C with 5% CO2. Growing CH12F3 cells were transfected with 1.5 μg pX330-Cas9 or pX330-Cas9-mCherry expression vector per million by 4D-nucleofector X (Lonza, solution M1, procedure DN100) and seeding at 0.5 million cells/mL in fresh medium with 1μg/mL anti-CD40, 5 ng/mL IL-4, and 0.5 ng/mL TGF-β. After 72 hrs stimulation, the cells were harvested and genomic DNA was extracted for PEM-seq library construction.
Gene Editing of Immune Cell Lines
Cells were then washed with PBS and resuspended in 20 μL of SF (K562) or SG (Raji and Ramos) buffer (Lonza) and mixed with Cas9 RNPs. If appropriate, cells were also mixed with 1.4–2 μg of plasmid homology donors or 100 pmol phosphorothioate-modified ssODNs as previously described.59 Electroporations were performed with the 4D-X Nucleofector (Lonza). K562 cells used pulse code FF-120, Raji cells used pulse code DS-104, and Ramos cells used pulse code CA-137.
J3-, A6-, or GFP-edited Raji and Ramos cells were expanded in culture. J3 and A6-edited cells were stained with anti-IgG-Fc antibody (BioLegend, clone M1310G05). Cells were sorted on a FACSAria II cell sorter based on membrane IgG expression (J3 and A6 editing) or GFP expression.
Gene Editing in Hematopoietic Cell Lines
Cells were then washed with PBS and resuspended in 20 μL of SF (K562) or SG (Raji and Ramos) buffer (Lonza) and mixed with Cas9 RNPs. If appropriate, cells were also mixed with 1.4-2 μg of plasmid homology donors or 100 pmol phosphorothioate-modified ssODNs as previously described.59 (link) Electroporations were performed with the 4D-X Nucleofector (Lonza). K562 cells used pulse code FF-120, Raji cells used pulse code DS-104, and Ramos cells used pulse code CA-137.
J3-, A6-, or GFP-edited Raji and Ramos cells were expanded in culture. J3 and A6-edited cells were stained with anti-IgG-Fc antibody (BioLegend, clone M1310G05). Cells were sorted on a FACSAria II cell sorter based on membrane IgG expression (J3 and A6 editing) or GFP expression.
Fluorescent Transfection Techniques for Cell Imaging
Efficient AAV Transduction of Cell Lines
K562, Raji, and Molt4.8 cells were cultured in RPMI-1640 medium supplemented with 10% FBS and 1% penicillin/streptomycin. Cells were washed twice with PBS, seeded into plates at indicated cell concentrations in RPMI-1640, with or without FBS or human AB serum, and transduced with AAV vectors at indicated MOIs at 37°C. After 2 h (or as indicated), 10% FBS (final volume) was restored to the culture if appropriate. Electroporation of K562 cells was performed using a SF Cell Line 4D-Nucleofector kit and 4D-X Nucleofector using pulse code FF-120 (Lonza, Basel, Switzerland), per the manufacturer’s recommendations. After 2 days, GFP expression was measured by flow cytometry, and vector copy numbers were measured by Droplet Digital PCR (ddPCR) as previously described.36 (link) Detailed protocols for AAV copy number determination are provided in the
AAV Transduction of Cell Lines
Knockdown and Knockout of TRIM Proteins in A549 Cells
For CRISPR/Cas9 editing, specific guide RNA (sgRNA) for TRIM16, TRIM22, or Scrambled guides were obtained from Synthego. The sgRNA and Cas9 protein (Alt-R® S.p. Cas9 Nuclease V3, IDT, CAT: 1081059) were then used for genome editing using the Lonza 4D Nucleofection system (Lonza, Singapore), according to manufacturer’s instructions. Cells were transfected using the nucleofector machine (4D-Nucleofector® X, Lonza) using pre-programmed settings (CM-130) suitable for A549 cells. After nucleofection, cells were seeded into 12-well tissue culture plates and expanded for subsequent experiments. All experiments with TRIM16 KO bulk populations were performed within 10 passages of nucleofection. Single-cell clones were prepared from bulk populations by limiting dilution.
CRISPR Clover-LMNA HDR Assay Protocol
Targeted Genome Editing in CF2-iPS3 Cells
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