Flow cytometric analysis of tumors from obese mice treated with IgG2a or anti-PD-1 was conducted to quantify frequencies of immune cell infiltrates.
(A) Tumor dendritic cells (tDCs).
(B) Tumor macrophages (tMacs).
(C) M1-like and M2-like tMac subtypes.
(D) M1-like/M2-like ratio of tMacs.
(E) CD3+ T cells.
(F) CD3+ T cell staining by immunofluorescence and quantification in 6 20× fields. Representative 20× images are shown. Scale bar is 200 μM. DAPI nuclear stain shows negative control without primary antibody.
(G) CD8+ and CD4+ T cells.
Data are shown as mean ± SEM. *p < 0.05 and **p < 0.01 by two-way ANOVA. n = 5–8. See also Figures S1 and S2.