and murine IgG2b αCTLA4 (9D9, Leinco Technologies) were used. Mice were
injected intraperitoneally with 200μg of each antibody on 3, 6 and 9 days
post tumor transplant. Antibodies used for multi-color flow cytometry were CD45
(30-F11), CD11b (M1/70), Thy1.2 (30H12), CD4 (RM4-5), CD8β (YTS156.7.7),
I-E/I-A (M5/114.15.2), CD64 (X54-5/7.1), Ly6G (1A8), T-BET (4B10), CD150/SLAM
(TC15-12F12.2), KLRG1 (2F1), ICOS (15F9), CD44 (IM7), PD-1 (29F.1A12),
SIINFEKL-H-2-Kb (25-D1.16) (BioLegend), CD24 (M1/69), F4/80
(T45-2342) (BD Biosciences), FOXP3 (FJK-16s, eBiosciences) and iNOS (CXNFT,
Invitrogen). Zombie NIR (BioLegend) was used to stain for cellular viability.
The BD Cytofix/Cytoperm Plus kit (BD Biosciences) was used following
manufacturer’s protocol for intracellular staining of iNOS, T-BET and
FOXP3.