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. 2018 Dec 21;13:1–12. doi: 10.2147/BTT.S114530

Figure 2.

Figure 2

Potential mechanisms of acquired NB resistance to dinutuximab.

Notes: Killing of NB cells by dinutuximab requires the antibody to partner with the effector cells, such as NK cells, neutrophils (PMLs), and Mac to kill via ADCC and/or to fix complement on the tumor cell membrane. Based on the data to date, potential mechanisms of acquired resistance to dinutuximab are illustrated and include neutralization of antibody with HACAs and decreased expression or exposure on the cell surface of GD2.

Abbreviations: ADCC, antibody-dependent cellular cytotoxicity; HACAs, human anti-chimeric antibodies; Mac, macrophages; NK, natural killer; NB, neuroblastoma; PMLs, polymorphonuclear leukocytes.