CD19 CAR T Cell Flow Cytometry Panel

*Designate clones independently validated by HLDA.

This multicolor flow cytometry panel was validated on T cells transduced with human CD19 CAR (hCD19 CAR).

Other Supplies Required

• PBS
• Flow Cytometry Staining Buffer (Catalog # FC001)
• Fc-block (blocking IgG)
• (Optional) Isotype Control Antibodies
• 5 mL Flow cytometry tubes

1. Wash human PBMCs (1 x 10⁶ cells per sample) with 2 mL of Staining Buffer (1X) (Catalog # FC001) or other BSA-containing buffer, by spinning at 300 x g for 5 minutes, using 5 mL flow cytometry tubes. Decant/aspirate supernatant.
2. Fc-block cells with blocking IgG (1 μg IgG/10⁶ cells) for 10 minutes at room temperature.
3. Add 5 μL (or previously titrated amount) of each primary conjugated antibody and Human CD19 Fc Chimera. Vortex tubes.
4. (Optional) To a separate tube, add 5 μL of each of the isotype control antibodies. Vortex tubes.
5. Incubate samples for 20 minutes at 37 °C and then 10 minutes at room temperature in the dark.
6. At the end of the incubation, wash with 2 mL of Staining Buffer (1X), by spinning at 300 x g for 5 minutes. Decant/aspirate supernatant.
7. Acquire on Flow Cytometer.