Table 1.

Antibodies used for the detection of cell surface and intracellular molecules

Antibody	Source
PerCP-conjugated antibodies
CD4	BD PharMingen (San Diego, CA, USA)
Mouse IgG	BD PharMingen (San Diego, CA, USA)
FITC-conjugated antibodies
CD4	BD PharMingen (San Diego, CA, USA)
CD25	BD PharMingen (San Diego, CA, USA)
Mouse IgG	BD PharMingen (San Diego, CA, USA)
APC-conjugated antibodies
CTLA-4 (CD152)	BD PharMingen (San Diego, CA, USA)
Mouse IgG	BD PharMingen (San Diego, CA, USA)
PE-conjugated antibodies
CD4	BD PharMingen (San Diego, CA, USA)
CD69	BD PharMingen (San Diego, CA, USA)
CD40L (CD154)	BD PharMingen (San Diego, CA, USA)
OX40 (CD134)	BD PharMingen (San Diego, CA, USA)
GITR	R & D Systems (Minneapolis, MN, USA)
Mouse IgG	BD PharMingen (San Diego, CA, USA)