1区 · 医学
Article
作者: Baran, Natalia ; Wong, Pamela ; Li, Li ; Nunez Cortes, Ana Karen ; Liu, Enli ; Marin, Nancy D. ; Kerbauy, Lucila N. ; Basar, Rafet ; Treder, Martin ; Schappe, Timothy ; Fischer, Wolfgang ; Mohanty, Vakul ; Daher, May ; Berrien-Elliott, Melissa M. ; Koch, Joachim ; Shanley, Mayra ; Okamoto, Oswaldo Keith ; Uprety, Nadima ; Kaplan, Mecit ; Inng Lim, Francesca Wei ; Mendt, Mayela Carolina ; Muniz-Feliciano, Luis ; Shaim, Hila ; Cai, Rong ; Ensley, Emily L. ; Neal, Carly C. ; Nandivada, Vandana ; Fowlkes, Natalie W. ; Ang, Sonny O. ; Miao, Qi ; Shpall, Elizabeth J. ; Chen, Ken ; Foster, Mark ; McClain, Ethan ; Champlin, Richard E. ; Nieto, Yago L. ; Becker-Hapak, Michelle ; Garcia Melo, Luciana ; Desai, Sweta ; Rezvani, Katayoun ; Banerjee, Pinaki P. ; Fehniger, Todd A. ; Shen, Yifei
AbstractPurpose:Natural killer (NK)-cell recognition and function against NK-resistant cancers remain substantial barriers to the broad application of NK-cell immunotherapy. Potential solutions include bispecific engagers that target NK-cell activity via an NK-activating receptor when simultaneously targeting a tumor-specific antigen, as well as enhancing functionality using IL12/15/18 cytokine pre-activation.Experimental Design:We assessed single-cell NK-cell responses stimulated by the tetravalent bispecific antibody AFM13 that binds CD30 on leukemia/lymphoma targets and CD16A on various types of NK cells using mass cytometry and cytotoxicity assays. The combination of AFM13 and IL12/15/18 pre-activation of blood and cord blood–derived NK cells was investigated in vitro and in vivo.Results:We found heterogeneity within AFM13-directed conventional blood NK cell (cNK) responses, as well as consistent AFM13-directed polyfunctional activation of mature NK cells across donors. NK-cell source also impacted the AFM13 response, with cNK cells from healthy donors exhibiting superior responses to those from patients with Hodgkin lymphoma. IL12/15/18-induced memory-like NK cells from peripheral blood exhibited enhanced killing of CD30+ lymphoma targets directed by AFM13, compared with cNK cells. Cord-blood NK cells preactivated with IL12/15/18 and ex vivo expanded with K562-based feeders also exhibited enhanced killing with AFM13 stimulation via upregulation of signaling pathways related to NK-cell effector function. AFM13–NK complex cells exhibited enhanced responses to CD30+ lymphomas in vitro and in vivo.Conclusions:We identify AFM13 as a promising combination with cytokine-activated adult blood or cord-blood NK cells to treat CD30+ hematologic malignancies, warranting clinical trials with these novel combinations.