IGHE and neoplasm: Fcer1g, another gene shared by both the spleen and tumor transcriptomes (Fig. 3D-3F), was upregulated more than fourfold in the spleen of CT26 tumor-bearing mice as compared to healthy control mice (Fig. 4A), however, exercise training did not change Fc receptor, IgE, high affinity I, gamma polypeptide (Fcer1g) mRNA levels (Fig. 4A).