The anti-CD19 CAR idiotype antibody was kindly provided by Bipulendu Jena and Laurence Cooper
48 . The 1A7 anti-14G2a idiotype antibody was obtained from NCI-Frederick. CD22 and Her2 CARs were detected using human
CD22-Fc and Her2-Fc recombinant proteins (R&D). The idiotype antibodies and Fc-fusion proteins were conjugated in house with
Dylight488 and/or 650 antibody labeling kits (Thermo Fisher). T cell surface phenotype was assessed using the following antibodies:
From BioLegend: CD4-APC-Cy7 (clone OKT4), CD8-PerCp-Cy5.5 (clone SK1),
TIM3-BV510 (clone F38–2E2), CD39-FITC or APC-Cy7 (clone A1), CD95-PE (clone DX2),
CD3-PacBlue (clone HIT3a),From eBioscience: PD1-PE-Cy7 (clone eBio J105), LAG3-PE (clone 3DS223H),
CD45RO-PE-Cy7 (clone UCHL1), CD45-PerCp-Cy5.5 (clone HI30),
From BD:
CD45RA-FITC or BV711 (clone HI100), CCR7-BV421 (clone 150503), CD122-BV510 (clone Mik-β3), CD62L-BV605 (clone DREG-56), CD4-BUV395 (clone SK3), CD8-BUV805 (clone SK1).
Lynn R.C., Weber E.W., Sotillo E., Gennert D., Xu P., Good Z., Anbunathan H., Lattin J., Jones R., Tieu V., Nagaraja S., Granja J., DeBourcy C., Majzner R., Satpathy A.T., Quake S.R., Monje M., Chang H, & Mackall C.L. (2019). c-Jun overexpression in CAR T cells induces exhaustion resistance. Nature, 576(7786), 293-300.