CD27, CD28 (BD Biosciences), Strep tag II (Genscript), EGFR (ImClone Systems)
and Vβ22 (Beckman Coulter) were used for staining analysis by flow
cytometry. Biotinylated antibodies were stained with Streptavidin-PE (BD
Biosciences, San Jose, CA). T cells transduced with the NY-BR-1 TCR were
analyzed by flow cytometry after staining with antibodies specific for CD8,
Strep-tag II, Vβ22, and MHC-tetramers loaded with NY-BR-1 peptide (FHCRC
Immune Monitoring Lab). Staining with propidium iodide (PI, BD Biosciences) was
used for live/dead cell discrimination as directed by the manufacturer. Flow
analyses were done on a FACS Canto II (Becton Dickinson, Franklin Lakes, NJ).
Data were analyzed using FlowJo software (Treestar).