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. 2005 Mar 7;201(5):779–791. doi: 10.1084/jem.20041684

Figure 4.

Figure 4.

Intratumor depletion of CD4+ cells leads to rejection of established tumor. 105 Ag104Ld tumor cells were inoculated to C3B6F1 mice s.c. and 12.5–50 μg anti-CD4 antibody (GK1.5) was injected intratumorally, once every 7 d, starting 14 d after tumor challenge. The arrow indicated the first treatment. Spleen as well as tumor tissue were isolated from mice 2 d after CD4 depletion. The percentage of CD4+ T cells in the spleen or tumor tissue was determined by FACS (a). Tumor growth was monitored and data shown was representative pattern of tumor growth in one of five experiments comprising 21 mice (b).