These results indicate the activation of IL-4/IL-4 receptor system in leukemic cells from some ATL patients and suggest the possible involvement of the system in the proliferation of leukemic cells and the leukemogenesis in ATL.
Here, we report that IL-2-dependent ATL cell lines also express IL-4Ralpha and respond to IL-4, which was verified by the activation of cytoplasmic transcriptional activator Stat6 protein.
"The combination of arsenic, interferon-alpha, and zidovudine restores an ""immunocompetent-like"" cytokine expression profile in patients with adult T-cell leukemia lymphoma."