IL4 and neoplasm: Moreover, when tumor-bearing mice were injected with αGC, intratumoral DCs and iNKT cells showed less STAT6 phosphorylation (Fig. 7d) and IFNγ (Fig. 7e) production, respectively, than cells from the spleen, although similar production of IL4 was detected for the intratumoral iNKT cells and splenic iNKT cells (Fig. 7f).