SKAP1 and neoplasm: SKAP1 overexpression led to a more than 2.4‐fold increase in HT‐29 tumor weight in IgG‐treated mice (0.65 ± 0.05 g versus 0.26 ± 0.08 g, P < 0.001) 28 days after tumor implantation, but failed to significantly increase tumor weights in anti‐Ly6G antibody‐treated mice (P > 0.05; Figure 3G).