Abstract |
The disialoganglioside GD2 is a well-established target antigen for passive immunotherapy in neuroblastoma (NB). Despite the recent success of passive immunotherapy with the anti-GD2 antibody ch14.18 and cytokines, treatment of high-risk NB remains challenging. We expanded the approach of GD2-specific, antibody-based immunotherapy to an application of a GD2-specific natural killer (NK) cell line, NK-92-scFv(ch14.18)-zeta. NK-92-scFv(ch14.18)-zeta is genetically engineered to express a GD2-specific chimeric antigen receptor generated from ch14.18. Here, we show that chimeric receptor expression enables NK-92-scFv(ch14.18)-zeta to effectively lyse GD2(+) NB cells also including partially or multidrug-resistant lines. Our data suggest that recognition of GD2 by the chimeric receptor is the primary mechanism involved in NK-92-scFv(ch14.18)-zeta-mediated lysis and is independent of activating NK cell receptor/ ligand interactions. Furthermore, we demonstrate that NK-92-scFv(ch14.18)-zeta is able to mediate a significant anti- tumor response in vivo in a drug-resistant GD2(+) NB xenograft mouse model. NK-92-scFv(ch14.18)-zeta is an NB-specific NK cell line that has potential for future clinical development due to its high stability and activity toward GD2(+) NB cell lines.
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Authors | Diana Seidel, Anastasia Shibina, Nikolai Siebert, Winfried S Wels, C Patrick Reynolds, Nicole Huebener, Holger N Lode |
Journal | Cancer immunology, immunotherapy : CII
(Cancer Immunol Immunother)
Vol. 64
Issue 5
Pg. 621-34
(May 2015)
ISSN: 1432-0851 [Electronic] Germany |
PMID | 25711293
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
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Chemical References |
- Antibodies, Anti-Idiotypic
- Gangliosides
- Receptors, Antigen
- Single-Chain Antibodies
- sialogangliosides
- ganglioside, GD2
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Topics |
- Animals
- Antibodies, Anti-Idiotypic
(immunology)
- Cell Line
- Cytotoxicity, Immunologic
(immunology)
- Drug Resistance, Neoplasm
- Female
- Gangliosides
(genetics, immunology)
- Genetic Engineering
- Humans
- Immunotherapy, Adoptive
(methods)
- Killer Cells, Natural
(immunology)
- Mice
- Mice, Inbred NOD
- Neoplasm Transplantation
- Neuroblastoma
(immunology, therapy)
- Receptors, Antigen
(biosynthesis, immunology)
- Single-Chain Antibodies
(immunology)
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