The anti-CD19 CAR-T cells are produced by high-titer lentiviral transduction of human primary CD4+CD8+ T cells using the anti-CD19 CAR Lentivirus (CD19 ScFv-CD8-4-1BB-CD3zeta; SIN Vector, Biohippo, #78601). These ready-to use CAR-T cells express an anti-CD19 CAR consisting the ScFv of CD19 (clone FMC63) linked to a 2nd generation CAR (Chimeric Antigen Receptor) containing CD8 hinge and transmembrane domains, and the 4-1BB and CD3zeta signaling domains. These CAR-T cells have been validated using flow cytometry (to determine the CAR expression) and co-culture cytotoxicity assays.
Mycoplasma testing: The cells have been screened to confirm the absence of Mycoplasma species.
Host Species: human
Supplied as Each vial contains 2 x 106 cells in 1 ml of CryoStor CS10)
Background
CD19 (also known as Cluster of Differentiation 19, B-lymphocyte surface antigen B4, or CVID3) is a glycoprotein expressed at the surface of B lymphocytes through most phases of B cell maturation. It is strictly required for B cell terminal differentiation. Mutations in the CD19 gene cause severe immune-deficiency syndromes associated with impaired antibody production such as CVID3 (common variable immuno-deficiency 3). The majority of B cell malignancies express normal to high levels of CD19, which is a nearly ideal target for cancer immunotherapy. Blinatumomab, a CD19/CD3 bi-specific T cell engager (BiTE) has been approved for relapsed/refractory B-precursor ALL (Acute lymphoblastic leukemia). In addition, CD19 was the target of the first approved CAR-T cell therapy.
Application
Positive control for anti-CD19 CAR-T cellsScreening inhibitors or activators of anti-CD19 CAR-T cytotoxicityDesign and optimize co-culture cytotoxicity assay
Shipping Temperature
-80°C (dry ice)
Note
Troubleshooting Guide: For all further questions, please email [email protected]. Warning: Avoid freeze/thaw cycles.Donors have been screened and determined negative for:- Hepatitis B (anti-HBc EIA, HBsAg EIA)- Hepatitis C (anti-HCV EIA)- Human Immunodeficiency Virus (HIV-1/HIV-2 plus O)- Human T-Lymphotropic Virus (HTLV-I/II)- HIV-1/HCV/HBV- West Nile Virus- Trypanasoma cruziNote: Testing cannot guarantee that any sample is completely virus-free. These cells should be treated as potentially infectious and appropriate biological safety level 2 precautions should be used.
Storage Stability
Cells are shipped in dry ice and should immediately be thawed or stored in liquid nitrogen upon receipt. Do not use a -80°C freezer for long term storage.