T reg cells in (A) tumors, *P=
0.0052, and (B) spleen, *P<0.0001, of Her2/neu
transgenic NT-5 tumor-bearing mice treated with PBS or C5aR1 antagonist (C5aRA).
MDSC in blood of NT-5 tumor-bearing (C) Her2/neu,
*P=0.04 and (F) FVB wild-type
mice, *P=0.0361 treated as in A, B. MDSC
(CD11b+GR-1+) in tumors of
(D) Her2/neu transgenic and (G) FVB wild-type mice
treated as in A, B. Quantification of (E) D,
*P=0.0025 and (H) G,
*P=0.04. All statistical analyses by
t-test. Scale bars 50 μm. Data are representative of at least three
independent experiments with n=4–10.