C-C chemokine receptor-like 2 (CCRL2) is a chemokine receptor involved in inflammation activation and is usually expressed in differentiated myeloid cells. CCRL2 is overexpressed in acute erythroid leukemia (AEL) cells compared to healthy cells. Antibody-drug conjugates (ADCs) against CCRL2 in AEL were developed and tested in the preclinical setting.