Expression data from mouse CD19-targeted CAR (chimeric antigen receptor) T cells after antigen stimulation [expression array]

Second-generation CD19-targeted chimeric antigen receptors (CAR) have an antigen-binding domain fused to transmembrane, co-stimulatory, and CD3ζ domains. The two CARs with regulatory approval include a CD28 or 4-1BB co-stimulatory domain. While both CARs achieve similar clinical outcomes, biologic differences between the two endodomains have become apparent but not completely understood. The objective is to evaluate gene expression in different mouse CD19-targeted CAR T cells, including m19z, m1928z and m19-musBBz. Different CAR T cells were stimulated with antigen presenting cells overnight for RNA extraction and hybridization on Affymetrix microarrays. Nine samples were analyzed.