The proportion of CD11b+Gr1+ MDSC cells in the whole lung tissue were: 15 ± 1% for the control group, 23 ± 3% for the contralateral skin incision group, 27 ± 2% for the ipsilateral skin incision group, 20 ± 4% for the 1/4 tumor removal group, and 23 ± 3% for the 3/4 tumor removal group, and 12 ± 4% for the whole tumor resection group (Figures 2A,B). Here, ITGAM is linked to neoplasm.