The control IgG exerted no lysis in any of the cell lines, even at a concentration of 200 nM.19 These results demonstrate that m909 is able to bind to FRβ-expressing cells and mediate ADCC by recruiting NK cells and this antibody has been used to target FRβ positive acute myeloid leukaemia (AML) blasts with chimeric antigen receptor T cells. Here, FOLR2 is linked to acute myeloid leukemia.