C-C Motif Chemokine Receptor 4 (CCR4) is a G-coupled-protein receptor for C-C chemokines. It’s on surface of tumor cells in leukemia and lymphoma patients. For example, adult T-cell leukemia-lymphoma (ATLL), peripheral T-cell lymphoma (PTCL) and cutaneous T-cell lymphoma (CTCL) all expresses CCR-4. Furthermore, leukemia and lymphoma are clinically and...